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R10776City Council Meeting 10 -22 -2013 Santa Monica, California RESOLUTION NUMBER 10776 (CGS) (City Council Series) A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF SANTA MONICA MAKING FINDINGS REGARDING LOCAL CLIMATIC, GEOLOGICAL AND TOPOGRAPHIC CONDITIONS PURSUANT TO HEALTH AND SAFETY CODE SECTIONS 17958.5, 17958.7 and 18941.5 WHEREAS, the State Building Standards Commission has approved and published the 2013 edition of the California Building Standards Code on July 1, 2013; and such code will be effective 180 days thereafter, which is January 1, 2014; and WHEREAS, Health and Safety Code Sections 17958.7 and 18941.5 provide that the City may make changes or modifications to the building standards contained in the California Building Standards Code based upon express findings that such changes or modifications are reasonably necessary because of local climatic, geological or topographical conditions; and WHEREAS, on September 5, 2013 and September 12, 2013, the Building and Fire Life Safety Commission met to consider recommendations to the City Council regarding adopting the 2013 California Building Standards Code, local amendments to that Code, and local climatic, geological and topographical conditions; and WHEREAS, at the September 12, 2013 meeting, the Building and Safety Commission unanimously recommended that the City Council adopt a resolution making necessary local findings and adopt the 2013 California Building Standards Code with local amendments, as modified by the Commission; and WHEREAS, the majority of the local amendments were recommended from a collaborative group of Building Officials from the Los Angeles County region; and WHEREAS, the City Council finds each of the amendments necessary and applicable to Santa Monica; and WHEREAS, the City Council has considered the 2013 editions of the California Building Standards Code, including but not limited to the California Building Code, California Residential Code, California Electrical Code, California Mechanical Code, California Plumbing Code, California Energy Code, California Fire Code, California Green Building Standards Code, the reference standards, appendixes and the matrix adoption tables contained therein and any applicable errata issued subsequent to the publication of above codes and standards; and WHEREAS, based upon the findings contained in this Resolution, the City Council will be adopting an ordinance containing certain modifications and additions to the building standards contained in the California Building Standard Code, which are reasonably necessary based upon local climatic, topographical and geological conditions. NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF SANTA MONICA DOES RESOLVE AS FOLLOWS: SECTION 1. The City Council makes the following findings regarding local climatic, geological and topographic conditions related to the local amendments to the California Building Standards Code found in Section 2 below: 11 General Findings (a) The Master Environmental Assessment (MEA) adopted in April 1996, shows that Santa Monica's climate is primarily influenced by the Pacific Ocean and is characterized by infrequent rainfall and winds. The winds originate from the west during the day and from the north and northeast during the night. Further, intermittent Santa Ana winds conditions occur from September to March allowing conditions that create the potential for high velocity winds with high temperatures. In addition, the region is within a climate system capable of producing major winds, fire and rain related disasters, including but not limited to those caused by the Santa Ana winds and El Nino (or La Nina) subtropical -like weather (Climatic). (b) Santa Monica is situated in Southern California which has extreme and conditions and periods of severe drought. As outlined in the MEA, the City relies upon water from outside the region which is purchased from the Metropolitan Water District, and local groundwater for the City's water supply (Climatic). (c) The Safety Element of the General Plan adopted in January 1995, shows high risk of seismic activity in the City due to the close proximity of the Santa Monica - Malibu Coast fault, the Newport- Inglewood fault and the San Andreas Fault. The close proximity of these faults increases the likelihood of seismic disturbances of substantial magnitude. The Safety Element further discusses the damaging effect local seismic activity would have on potentially hazardous buildings and the related potential demands on emergency service needs (Geological). (d) The Los Angeles region has a vast and complex network of faults. Some of these faults, like the previously unknown Northridge Fault, are blind thrust faults that 3 earth scientists believe are capable of intense ground shaking similar or greater in size than the January 17, 1994 Northridge Earthquake. The random possible location of these blind thrust faults increases the local seismic risk and poses an increasing threat to public safety (Geological). (e) The Safety Element also identifies shallow ground water within 50 feet of the ground surface along the beach, near the Industrial corridor and Marine Park areas of the City. This ground water condition, coupled with unconsolidated youthful sedimentary soils, makes these areas susceptible to possible liquefaction during strong or moderately strong earthquakes. Liquefaction is a very destructive secondary effect of strong seismic shaking where a loss of bearing strength occurs along with ground oscillations in the supporting soils (Geological). (f) Existing lots in the City of Santa Monica may be located on hilly terrain with slopes that create grading, drainage, foundation, infrastructure, utility and emergency access challenges (Topographical). Specific Findings (g) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the 1994 Northridge Earthquake, the 1987 Whittier Narrows Earthquake, the 1971 San Fernando Earthquake and the 1933 Long Beach Earthquake. This amendment will reduce the failure of concrete and clay tile roofs during a significant earthquake and is in M accordance with the scope and objectives of the International Building Code (Geological). (h) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the recent 1994 Northridge Earthquake. The proposed modification to limit mixed structural system to two stories is intended to improve quality of construction and therefore need to be incorporated into the code to assure that new buildings and structures and additions or alterations to existing buildings or structures are designed and constructed in accordance with the scope and objectives of the International Building Code (Geological). (i) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the 1994 Northridge Earthquake. The proposed modification to require special anchorage of the diaphragm to the wall and limit the allowable shear will address and clarify special needs for concrete and masonry construction with flexible wood diaphragm and therefore need to be incorporated into the code to assure that new buildings and structures and additions or alterations to existing buildings or structures are designed and constructed in accordance with the scope and objectives of the International Building Code (Geological). Q) The greater Los Angeles /Long Beach region is a densely populated area having buildings constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the 1994 Northridge 5 Earthquake. The proposed modification requiring design requirements for ceiling suspension systems to resist seismic loads to minimize the amount of damage within a building and therefore need to be incorporated into the code to assure that new buildings and additions to existing buildings are designed and constructed in accordance with the scope and objectives of the International Building Code (Geological). (k) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the 1994 Northridge Earthquake. The proposed modification to require the registered design professional in responsible charge for the structural design to observe the construction will help ensure acceptable standards of workmanship is provided and to improve the quality of the observation and therefore need to be incorporated into the code to assure that new buildings and structures and additions or alterations to existing buildings and structures are designed and constructed in accordance with the scope and objectives of the International Building Code (Geological). (t) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the 1994 Northridge Earthquake. The proposed modification to limit certain types of exemption from special inspection for concrete to improve quality of control during construction and therefore need to be incorporated into the code to assure that new buildings and structures and additions or alterations to existing buildings or structures are designed and constructed 6 in accordance with the scope and objectives of the International Building Code (Geological). (m) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the 1994 Northridge Earthquake. The proposed modification to require special inspections for detached one - or two - family dwellings not exceeding two stories above grade plane assigned to Seismic Design category D, E and F will help ensure that acceptable standards of workmanship and quality of construction are provided. Therefore it should be incorporated into the code to assure that new buildings and structures and additions or alterations to existing buildings or structures are designed and constructed in accordance with the scope and objectives of the International Building Code (Geological). (n) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the recent 1994 Northridge Earthquake. Additionally, the topography within the Los Angeles region includes significant hillsides with narrow and winding access that makes timely response by fire suppression vehicles challenging and difficult. The proposed modification establishes design parameters to better mitigate and limit property damage that are the results of increased seismic forces which are imparted upon hillside buildings and structures and therefore need to be incorporated into the code to assure that new buildings and structures and additions or alterations to existing buildings or structures are designed VA and constructed in accordance with the scope and objectives of the International Building Code (Geological and Topographical). (o) This amendment is necessary for administrative clarification. It does not modify a Building Standards pursuant to Sections 17958 and 18941.5 of the California Health and Safety Code and does not require an express finding to be made pursuant to Sections 17958.5 and 17958.7 of the California Health and Safety Code. This amendment established administrative standards for the effective enforcement of building standards and therefore need to be incorporated into the code to assure that new buildings and structures and additions or alterations to existing buildings or structures are designed and constructed in accordance with the scope and objectives of the International Building Code (Administrative). (p) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the 1994 Northridge Earthquake. In addition, the region is within a climate system capable of producing major winds, fire and rain related disasters, including but not limited to those caused by the Santa Ana winds and El Nino (or La Nina) subtropical -like weather. This region is especially susceptible to more active termite and wood attacking insects and microorganisms. The proposed modification to prohibit the use of wood for foundation support or retaining earth lateral pressure as well as limit prescriptive design provisions in an effort to mitigate potential problems or deficiencies due to the surrounding environment and therefore need to be incorporated into the code to assure that new buildings and structures and additions or alterations to existing buildings or structures F are designed and constructed in accordance with the scope and objectives of the International Building Code (Climatic and Geological). (q) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the 1994 Northridge Earthquake. The proposed modification to prohibit prescriptive design provisions for foundation walls is intended to ensure that the proper analysis of the structure takes into account the surrounding condition and therefore need to be incorporated into the code to assure that new buildings and structures and additions or alterations to existing buildings or structures are designed and constructed in accordance with the scope and objectives of the International Building Code (Geological). (r) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the recent 1994 Northridge Earthquake. The proposed modification to require minimum reinforcement in stepped footings is intended to improve performance of buildings and structures and therefore need to be incorporated into the code to assure that new buildings and structures and additions or alterations to existing buildings or structures are designed and constructed in accordance with the scope and objectives of the International Building Code (Geological). (s) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the 1994 Northridge 109 Earthquake. The proposed modification to limit the use of the prescriptive design provisions and under - reinforced or plain concrete is to ensure that the proper analysis of the structure takes into account the surrounding condition and therefore need to be incorporated into the code to assure that new buildings and structures and additions or alterations to existing buildings or structures are designed and constructed in accordance with the scope and objectives of the International Building Code (Geological). (t) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the 1994 Northridge Earthquake. In addition, the region is within a climate system capable of producing major winds, fire and rain related disasters, including but not limited to those caused by the Santa Ana winds and El Nino (or La Nina) subtropical -like weather. This region is especially susceptible to more active termite and wood attacking insects and microorganisms. The proposed modification to prohibit the use of timber footings in an effort to mitigate potential problems or deficiencies due to the surrounding environment and therefore need to be incorporated into the code to assure that new buildings and structures and additions or alterations to existing buildings or structures are designed and constructed in accordance with the scope and objectives of the International Building Code (Climatic and Geological). (u) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the - 1994 Northridge 10 Earthquake. In addition, the region is within a climate system capable of producing major winds, fire and rain related disasters, including but not limited to those caused by the Santa Ana winds and El Nino (or La Nina) subtropical -like weather. This region is especially susceptible to more active termite and wood attacking insects and microorganisms. The proposed modification to prohibit the use of timber in an effort to mitigate potential problems or deficiencies due to the surrounding environment and therefore need to be incorporated into the code to assure that new buildings and structures and additions or alterations to existing buildings or structures are designed and constructed in accordance with the scope and objectives of the International Building Code (Climatic and Geological). (v) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the recent 1994 Northridge Earthquake. The proposed modification to wall pier detailing is intended to assure that ductility requirements for high seismic region is provided and therefore needs to be incorporated into the code to assure that new buildings and structures and additions or alterations to existing buildings or structures are designed and constructed in accordance with the scope and objectives of the International Building Code and ACI 318 (Geological). (w) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the 1994 Northridge Earthquake. The proposed modification to require minimum reinforcement to address 11 the problem of poor performance of plain or under - reinforced footings during a seismic event and therefore need to be incorporated into the code to assure that new buildings and structures and additions or alterations to existing buildings or structures are designed and constructed in accordance with the scope and objectives of the International Building Code (Geological). (x) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the 1994 Northridge Earthquake. The proposed modification to increase confinement in critical columns, limiting the use of highly gravity loaded walls, and increase concrete coverage in thin slabs will have to prevent failure of the structure and therefore need to be incorporated into the code to assure that new buildings and structures and additions or alterations to existing buildings or structures are designed and constructed in accordance with the scope and objectives of the International Building Code (Geological). (y) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the 1994 Northridge Earthquake, the 1987 Whittier Narrows Earthquake, the 1971 San Fernando Earthquake and the 1933 Long Beach Earthquake. This amendment will reduce the failure of concrete and clay tile roofs during a significant earthquake and is in accordance with the scope and objectives of the International Building Code (Geological). 12 (z) An analysis of damage patterns to nonstructural elements in the City.from the January 17, 1994 Northridge earthquake and its aftershocks also showed that concrete and masonry chimneys, veneer, clay and concrete tile roofing and fire sprinklers were more susceptible to damage than other types of nonstructural elements. Unless supplemental seismic and fire life safety provisions are adopted, these nonstructural elements will perform poorly during intense ground shaking and pose an ongoing threat to public safety (Geological). (aa) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the 1994 Northridge Earthquake. The proposed modification to limit the use of staple fasteners to resist or transfer seismic load improve the performance of buildings and structures during a seismic event and therefore need to be incorporated into the code to assure that new buildings and structures and additions or alterations to existing buildings or structures are designed and constructed in accordance with the scope and objectives of the International Building Code (Geological). (bb) The greater Los Angeles region is- a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the 1994 Northridge Earthquake. In addition, the region is within a climate system capable of producing major winds, fire and rain related disasters, including but not limited to those caused by the Santa Ana winds and El Nino (or La Nina) subtropical -like weather. This region is especially susceptible to more active termite and wood attacking insects and 13 microorganisms. The proposed modification to prohibit the use of wood is intended to mitigate potential problems or deficiencies due to the surrounding environment and therefore need to be incorporated into the code to assure that new buildings and structures and additions or alterations to existing buildings or structures are designed and constructed in accordance with the scope and objectives of the International Building Code (Climatic and Geological). (cc) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the 1994 Northridge Earthquake. The proposed modification to require mechanically driven nails to have the same dimensions as hand - driven nail will result in improved quality of construction and performance of wood structural panel shear walls and therefore need to be incorporated into the code to assure that new buildings and structures and additions or alterations to existing buildings or structures are designed and constructed in accordance with the scope and objectives of the International Building Code (Geological). (dd) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the 1994 Northridge Earthquake. The proposed modification to establish minimum performance requirements for hold -down connectors will reduce failure of wood structural panel shear walls due to excessive deflection and therefore need to be incorporated into the code to assure that new buildings and structures and additions or alterations to existing 14 buildings or structures are designed and constructed in accordance with the scope and objectives of the International Building Code (Geological). (ee) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the recent 1994 Northridge Earthquake. The proposed modification to place design and construction limits on staples as fasteners used in wood structural panel or diaphragms not substantiated with cyclic testing will help to maintain minimum quality of construction and performance standards of structures and therefore need to be incorporated into the code to assure that new buildings and structures and additions or alterations to existing buildings or structures are designed and constructed in accordance with the scope and objectives of the International Building Code (Geological). (ff) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the recent 1994 Northridge Earthquake. The proposed modification to place design and construction limits on stapled nail fasteners used in wood structural panel shear walls or diaphragms not substantiated with cyclic testing will help to maintain minimum quality of construction and performance standards of structures and therefore need to be incorporated into the code to assure that new buildings and structures and additions or alterations to existing buildings or structures are designed and constructed in accordance with the scope and objectives of the International Building Code (Geological). 15 (gg) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the 1994 Northridge Earthquake. Conventional framing does not address the need for a continuous load path, critical shear transfer mechanisms, connection ties, irregular and flexible portions of complex shaped structures. The proposed modification to require continuous footings under braced wall lines will improve performance of buildings or structure during a seismic event and therefore need to be incorporated into the code to assure that new buildings and additions to existing buildings are designed and constructed in accordance with the scope and objectives of the International Building Code (Geological). (hh) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the recent 1994 Northridge Earthquake. The proposed modification requiring minimum sheathing thickness and nailing type and size will help to maintain minimum quality of construction and performance standards of structures and therefore needs to be incorporated into the code to assure that new buildings and additions to existing buildings are designed and constructed in accordance with the scope and objectives of the International Building Code (Geological). (ii) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the recent 1994 Northridge 16 Earthquake. The proposed modification to limit the use of staple fasteners to resist or transfer seismic load improve the performance of buildings and structures during a seismic event and therefore need to be incorporated into the code to assure that new buildings and structure and additions or alterations to existing buildings or structures are designed and constructed in accordance with the scope and objectives of the International Building Code (Geological). (jj) Section R312.2 of the California Residential Code requires a minimum height of the window sill at 24- inches above the finished floor but this dimension is in conflict with the California Building Code which states R2 and R3 occupancies. This amendment is, necessary for administrative clarification. It does not modify a Building Standards pursuant to Sections 17958 and 18941.5 of the California Health and Safety Code and does not require an express finding to be made pursuant to Sections 17958.5 and 17958.7 of the California Health and Safety Code (Administrative). (kk) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the 1994 Northridge Earthquake. The proposed modification to require construction documents for wood frame construction greater than one story in height to be approved and stamped by a California licensed architect or engineer is intended to assure that the both the structural design and prescriptive requirement of the code are properly utilized and presented and therefore need to be incorporated into the code to assure that new buildings and structures and additions or alterations to existing buildings or structures are designed 17 and constructed in accordance with the scope and objectives of the International Residential Code (Geological). (II) The greater Los Angeles region is a densely populated area having buildings constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the 1994 Northridge Earthquake. The proposed modification addresses special design criteria for hillside buildings that are not addressed in the International Residential Code and therefore need to be incorporated into the code to assure that new buildings and additions to existing buildings are designed and constructed in accordance with the scope and objectives of the International Residential Code (Geological). (mm) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the 1994 Northridge Earthquake, the 1987 Whittier Narrows Earthquake, the 1971 San Fernando Earthquake and the 1933 Long Beach Earthquake. This amendment will improve the performance of buildings that otherwise may be designed and constructed in accordance with the CRC during a significant earthquake. This amendment is in accordance with the scope and objectives of the International Residential Code (Geological). (nn) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the 1994 Northridge Earthquake. The proposed amendments need to be incorporated into the Code to M. assure that new buildings and structures and additions or alterations to existing buildings or structures are designed and constructed in accordance with the scope and objectives of the International Building Code and consistent with the recent requirements in the ASCE 7 -10 (Geological). (oo) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the 1994 Northridge Earthquake. The proposed modification to limit the equipment weight is intended to reduce injuries, save lives, and minimize structural damages and therefore needs to be incorporated into the code to assure that new buildings and structures and additions or alterations to existing buildings or structures are designed and constructed in accordance with the scope and objectives of the International Residential Code (Geological). (pp) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the 1994 Northridge Earthquake. The proposed modification to require specific detailing at large floor openings is intended to address the poor performance of floor diaphragms with openings and limit or reduce property damages during a seismic event and therefore needs to be incorporated into the code to assure that new buildings and structures and additions or alterations to existing buildings or structures are designed and constructed in accordance with the scope and objectives of the International Residential Code (Geological). 19 (qq) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the recent 1994 Northridge Earthquake. The proposed modification to eliminate the usage of a single top plate will help to maintain minimum quality of construction and performance standards of structures and therefore need to be incorporated into the code to assure that new buildings and structures and additions or alterations to existing buildings or structures are designed and constructed in accordance with the scope and objectives of the International Residential Code (Geological). (rr) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the 1994 Northridge Earthquake. The proposed modification to increase the length and limit the location where shear walls sheathed with lath, plaster or gypsum board are used will help to ensure that multi -level building will reach its performance objective in resisting higher levels of seismic loads and therefore need to be incorporated into the code to assure that new buildings and structures and additions or alternations to existing buildings or structures are designed or constructed in accordance with the scope and objectives of the International Residential Code (Geological). (ss) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the 1994 Northridge Earthquake. The proposed modification to place design and construction limits on 20 stapled nail fasteners used in wood structural panel shear walls or diaphragms not substantiated with cyclic testing will help to maintain minimum quality of construction and performance standards of structures and therefore need to be incorporated into the code to assure that new buildings and additions to existing buildings are designed and constructed in accordance with the scope and objectives of the International Residential Code (Geological). (tt) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the 1994 Northridge Earthquake. The proposed modification requiring minimum sheathing thickness and nailing type and size will help to maintain minimum quality of construction and performance standards of structures and therefore need to be incorporated into the code to assure that new buildings and structures and additions or alterations to existing buildings or structures are designed and constructed in accordance with the scope and objectives of the International Residential Code (Geological). (uu) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the recent 1994 Northridge Earthquake. The proposed modification ensures that the structural integrity with respect to "maximum shear wall aspect ratios" is maintained, therefore need to be incorporated into the code to assure that new buildings and additions to existing buildings are designed and constructed in accordance with the scope and objectives of the International Residential Code (Geological). - 21 (vv) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the recent 1994 Northridge Earthquake. The proposed modification reduces the aspect ratio help to maintain minimum quality of construction and performance standards of structures and therefore need to be incorporated into the code to assure that new buildings and additions to existing buildings are designed and constructed in accordance with the scope and objectives of the International Residential Code (Geological). (ww) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the 1994 Northridge Earthquake. The proposed modification to require all exterior walls and interior braced wall panels in buildings be supported on continuous footings for a complete load path and therefore, need to be incorporated into the code to assure that new buildings and structures and additions or alterations to existing buildings or structures are designed and constructed in accordance with the scope and objectives of the International Residential Code (Geological): (xx) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited- to the 1994 Northridge Earthquake. The proposed modification to require specific detailing at large roof openings is intended to address the poor performance of roof diaphragms with openings and limit or reduce property damages during a seismic event and therefore needs to be WJ incorporated into the code to assure that new buildings and structures and additions or alterations to existing buildings or structures are designed and constructed in accordance with the scope and objectives of the International Residential Code (Geological). (yy) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the recent 1994 Northridge Earthquake. The proposed modification to not allow the use of unreinforced masonry is intended to prevent non - ductile failures and sudden structural collapses and therefore needs to be incorporated into the code to assure that new buildings and structures and additions or alterations to existing buildings or structures are designed and constructed in accordance with the scope and objectives of the International Residential Code (Geological). (zz) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the recent 1994 Northridge Earthquake. The proposed modification to increase reinforcements will ensure that the ductility requirements for buildings in high seismic region meet the intent of the code and limit potential property damages and therefore need to be incorporated into the code to assure that new buildings and structures and additions or alterations to existing buildings or structures are designed and constructed in accordance with the scope and objectives of the International Residential Code (Geological). 23 (aaa) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including, but not limited to, the 1994 Northridge Earthquake. In addition, the region is within a climate system capable of producing major winds, fire and rain related disasters, including but not limited to those caused by the Santa Ana winds and El Nino (or La Nina) subtropical -like weather. The proposed modification to prohibit the use of wood foundation systems as well as limit prescriptive design provisions in an effort to mitigate potential problems or deficiencies to ensure that new buildings and structures and additions or alternations to existing buildings or structures are designed and constructed in accordance with the scope and objectives of the International Residential Code (Climatic and Geological). (bbb) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the recent 1994 Northridge Earthquake. The proposed modification to require continuous footings under braced wall lines, require reinforcement in one- and two- family dwelling, and minimum reinforcement in stepped footings will improve performance of buildings or structure during a seismic event and minimize potential problems or deficiencies and therefore need to be incorporated into the code to assure that new buildings and additions to existing buildings are designed and constructed in accordance with the scope and objectives of the International Residential Code (Geological). (ccc) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable W of producing major earthquakes, including but not limited to the 1994 Northridge Earthquake. In addition, the region is within a climate system capable of producing major winds, fire and rain related disasters, including but not limited to those caused by the Santa Ana winds and El Nino (or La Nina) subtropical -like weather. This region is especially susceptible to more active termite and wood attacking insects and microorganisms. The proposed modification to prohibit the use of wood foundation walls in an effort to mitigate potential problems or deficiencies due to the proliferation of wood - destroying organisms and therefore need to be incorporated into the code to assure that new buildings and structures and additions or alterations to existing buildings or structures are designed and constructed in accordance with the scope and objectives of the International Residential Code (Climatic and Geological). (ddd) The greater Los Angeles region is a densely populated area having buildings and structures constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the 1994 Northridge Earthquake. The proposed modification to anchor masonry chimneys into concrete foundation will reduce injuries, save lives, and minimize structural damages. Therefore, this amendment needs to be incorporated into the code to assure that new buildings and structures and additions or alterations to existing buildings or structures are designed and constructed in accordance with the scope and objectives of the International Residential Code (Geological). (eee) The greater Los Angeles region is a densely populated area having buildings constructed over and near a vast array of fault systems capable of producing major earthquakes, including but not limited to the 1994 Northridge Earthquake. The 25 proposed modification to place design and construction limits on staples as fasteners used in wood structural panel or diaphragms not substantiated with cyclic testing will help to maintain minimum quality of construction and performance of structures and therefore need to be incorporated into the code to assure that new buildings and additions to existing buildings are designed and constructed in accordance with the scope and objectives of the International Residential Code (Geological). (ff) Due to fog, salt laden air, and possible splashing of seawater, metallic enclosures are subject to severe corrosive conditions that affect protection of live wires and components. Metallic enclosures that are located within 402.4 meters (0.25 miles) of the mean shoreline are especially subject to corrosive conditions (Climatic). (ggg) Where climatic conditions in Santa Monica create demands for higher usage of energy and natural resources, measures that allow conservation and efficiencies in construction will promote practices to achieve these goals and will be better realized with a definition of Sustainability as applied to concepts in the California Green Building Standards Code (Climatic). (hhh) The greater Los Angeles region is a densely populated area having residential buildings constructed within a region where environmental resources are scarce due to varying and occasional immoderate temperatures and weather conditions. This local condition also challenges the demand and need for energy resources upon the local utilities. The proposed modification to include the, green building requirements of Chapter 4 for any scope of residential work will assure that - existing residential buildings will be constructed in accordance with the scope and objectives of the California Green Building Standards Code (Climatic). 26 (iii) Some areas of the Los Angeles ,County region subject residential structures to water and moisture intrusion due to varying temperatures and /or humid conditions not allowing evaporation of introduced water and moisture (Climatic). (jjj) The greater Los Angeles region is a densely populated area where environmental resources are scarce due to varying and occasional immoderate temperature and weather conditions. The proposed amendment to require greater access for environmentally friendly vehicles will promote a lower contribution to greenhouse gases and less effect to the local environment and reduced demands for local energy and resources. (Climatic). SECTION 2. The City Council expressly findings that the following modifications and changes to the California Building Standards Code are reasonably necessary because of the local climatic, geological or topographical conditions and that each and every one of the local conditions detailed in Section 1 above apply to the following modifications and changes to the California Building Standards Code, as follows: 27 Municipal Code Justification from Local No. Amendment Summary Section Section 1 of this Condition Resolution Supplemental Land Hazard Zone Sections (c), (d), 1 8.12.050 Requirements. Geological (e) Continuation from previous code cycle Fire Retardant Roofing. 2 8.12.070 Sections (a), (b) Climatic Continuation from previous code cycle 3 8.12.080(a) Prohibit spaced sheathing board as a Sections (c), (d), Geological 27 base rooftops where concrete or clay (e), (g) tile is installed. (Amendment from the collaborative LA County group) Continuation from the previous code amendment to limit the height of light frame construction with vertical irregularities to two stories for one -and- 4 8.12.080(b) Section (h) Geological two family dwellings. Continuation from previous code cycle (Amendment from the collaborative LA County group) Provide more stringent requirements for the structural elements for Wood Roof Diaphragms where they support concrete or masonry walls and to limit 5 8.12.080(c) Section (i) Geological the allowable shear loads. Continuation from previous code cycle (Amendment from the collaborative LA County group) Amendment to provide structural safety standards for Suspended Ceilings where none currently exist in the 6 8.12.080(d) California Building Code. Section Q) Geological Continuation from previous code cycle (Amendment from the collaborative LA County group) 7 8.12.090(a) Define specific requirements of the Section (k) Geological 29 registered design professional for general structural observation and require more comprehensive job -site reporting. Continuation from previous code cycle (Amendment from the collaborative LA County group) Provide for more stringent requirements for seismic structural observation including lateral design 8 8.12.090(b) with an exception for simple structures Section (k) Geological Continuation from previous code cycle (Amendment from the collaborative LA County group) Clarify requirements for special inspection for concrete construction and eliminate the exception for no special inspection for concrete 9 8.12.090(c) Section (1) Geological foundation walls. Continuation from previous code cycle (Amendment from the collaborative LA County group) Provide more stringent requirement by requiring special inspection for seismic resistance for non "box- type" structures 10 8.12.090(d) Section (m) Geological of one - and -two family dwellings. Continuation from previous code cycle (Amendment from the collaborative LA 29 WE County group) Analysis and Design of Special Provisions for Hillside Buildings Geological 11 8.12.090(e) Continuation from previous code cycle Section (n) and (Amendment from the collaborative LA Topographical County group) Capacity requirements for joist hangers and vertical load bearing capacity. 12 8.12.090(f) Sections (o) Administrative (Amendment from the collaborative LA County group) Restrict permanent wood foundations in Seismic Design Categories D, E, F due to unknown performance in a seismic event and its ability to Climatic and 13 8.12.100(a) Section (p) withstand surrounding elements. Geological Continuation from previous code cycle (Amendment from the collaborative LA County group) Restrict the prescriptive design of foundation walls in Seismic Design Categories D, E, F. Climatic and 14 8.12.100(b) Section (q) Continuation from previous code cycle Geological (Amendment from the collaborative LA County group) Foundations — Stepped Footings. Continuation from previous code cycle 15 8.12.100(c) Section (r) Geological (Amendment from the collaborative LA County group) WE 31 Provide limitations for the prescriptive design method of footings for light - frame construction in Seismic Design Climatic and 16 8.12.100(d) Categories D, E, F. Section (s) Geological Continuation from previous code cycle (Amendment from the collaborative LA County group) Restrict allowance of timber footings in Seismic Design Categories D, E, F due to unknown performance in a seismic event and its ability to withstand 17 8.12.100(e) Section (t) Geological surrounding elements. Continuation from previous code cycle (Amendment from the collaborative LA County group) Restrict allowance of timber deep foundations designed as poles or piles in Seismic Category D due to unknown performance in a seismic event and its Climatic and 18 8.12.100(f) ability to withstand surrounding Section (u) Geological elements. Continuation from previous code cycle (Amendment from the collaborative LA County group) Structural wall piers in Seismic Design Categories D, E, F to comply with 19 8.12.110(a) Section (v) Geological additional standards. Continuation from previous code cycle 31 32 (Amendment from the collaborative LA County group) Restrict uses of plain structural concrete as minimum reinforcement and provide for additional reinforcing 20 8.12.110(b) methods. Section (w) Geological Continuation from previous code cycle (Amendment from the collaborative LA County group) Provide for critical design criteria of concrete columns and concrete shear walls. 21 8.12.110(c) Section (x) Geological Continuation from previous code cycle (Amendment from the collaborative LA County group) Concrete and Masonry Chimneys — 22 8.12.120(a) Alteration and Repair Standards Section (y) Geological Continuation from previous code cycle Reinforcing and Seismic Anchorage 23 8.12.120(b) Section (z) Geological Continuation from previous code cycle Restrict use of staples to resist or transfer seismic forces in Seismic Design Categories D, E, F. 24 8.12.140(a) Section (aa) Geological Continuation from previous code cycle (Amendment from the collaborative LA County group) Restrict use of wood in retaining and Climatic and 25 8.12.140(b) Section (bb) ) crib walls in Seismic Design Categories Geological 32 33 D, E, F due to unknown performance in a seismic event and its ability to withstand surrounding elements. Continuation from previous code cycle (Amendment from the collaborative LA County group) Require nails installed with a mechanical driver to meet same dimensions as hand - driven nails in 26 8.12.140(c) Seismic Design Categories D, E, F Section (cc) Geological Continuation from previous code cycle (Amendment from the collaborative LA County group) Require more stringent specifications for hold -down connectors for seismic design protection. Specific component and install methods for Seismic Design Climatic and 27 8.12.140(d) Section (dd) Categories D, E, F. Geological Continuation from previous code cycle (Amendment from the collaborative LA County group) Standards requirement for wood -frame diaphragms with restrictions for 28 8.12.140(e) Seismic Design Categories D, E, F. Section (ee) Geological (Amendment from the collaborative LA County group) Standards requirement for wood -frame 29 8.12.140(f) Section (ff) Geological shear walls with restrictions for Seismic 33 34 Design Categories D, E, F. (Amendment from the collaborative LA County group) More stringent requirements for braced wall line support. 30 8.12.140(g) Continuation from previous code cycle Section (gg) Geological (Amendment from the collaborative LA County group) Alternative bracing standards for panels and panel adjacent to a door or window opening with considerations for 31 8.12.140(h) Section (hh) Geological Seismic Design Categories D, E. (Amendment from the collaborative LA County group) Provide for more stringent requirements for braced wall sheathing based Seismic Design Category. 32 8.12.140(i) Section (ii) Geological Continuation from previous code cycle (Amendment from the collaborative LA County group) More stringent requirements for sheathing attachment in Seismic Design Categories D, E, F. Staples 33 8.12.1400) fasteners are not allowed. Section (ii) Geological Continuation from previous code cycle (Amendment from the collaborative LA County group) 34 35 Analysis and Design of Special Provisions for Hillside Buildings Geological 34 8.20.050 Continuation from previous code cycle Section (n) and (Amendment from the collaborative LA Topographical County group) Stricter requirement for height of 35 8.22.025(a) window sills in dwelling units to be Section Qj) Administrative consistent with State Code provisions. Requirement that construction drawings for woodframe structures more than one -story shall be stamped 36 8.22.030(a) by a licensed architect or engineer. Section (kk) Geological Continuation from previous code cycle (Amendment from the collaborative LA County group) Requirement that slopes steeper than 33 -1/3 percent are to comply with the structural requirements of Chapter 16 Topographical 37 8.22.030(b) of the California Building Code. Section (II) and Continuation from previous code cycle Geological (Amendment from the collaborative LA County group) Determination of parameters for Seismic Design Categories. 38 8.22.030(c) Section (mm) Geological (Amendment from the collaborative LA County group) Provide more stringent requirements 39 8.22.030(d) Section (nn) Geological for irregular or "box" shaped structures 35 36 by not allowing exceptions in Chapter 3 of the California Residential Code (Amendment from the collaborative LA County group) Require attachment of mechanical or plumbing fixtures and equipment to the structure. 40 8.22.030(e) Section (oo) Geological Continuation from previous code cycle (Amendment from the collaborative LA County group) Limit the weight and height of mechanical and plumbing equipment for attic floor systems to less than 400 41 8.22.030(f) pounds, and a maximum height of four Section (oo) Geological feet. (Amendment from the collaborative LA County group) Establish criteria for openings in horizontal diaphragms to limit the maximum floor opening. 42 8.22.030(g) Section (pp) Geological Continuation from previous code cycle (Amendment from the collaborative LA County group) Restriction of single top plate in stud walls in Seismic Design Category D. 43 8.22.030(h) Section (qq) Geological (Amendment from the collaborative LA County group) 44 8.22.030(i) Provide more stringent requirements Section (rr) Geological 36 37 for allowed material types for bracing requirements and restrict material types with unknown performance in Seismic Category D. Continuation from previous code cycle (Amendment from the collaborative LA County group) Provide more stringent requirements for allowed material types for intermittent bracing methods and restrict material types with unknown 45 8.22.0306) Section (ss) Geological performance in Seismic Category D. Continuation from previous code cycle (Amendment from the collaborative LA County group) Provide more stringent requirements for alternate braced wall panels by increasing minimum size of panel sheathing. type of nail fasteners and 46 8.22.030(k) Section (tt) Geological reinforcing lap. Continuation from previous code cycle (Amendment from the collaborative LA County group) Provide more stringent requirements for portal frame construction by 47 8.22.030(1) increasing minimum size of panel Section (tt) Geological sheathing and type of nail fasteners. Continuation from previous code cycle 37 RE (Amendment from the collaborative LA County group) Minimum length of braced wall panels based on wall height for Method PFH 48 8.22.030(m) and CS -PF. Section (uu) Geological (Amendment from the collaborative LA County group) Minimum number of braced wall panels based on length in Seismic Design 49 8.22.030(n) Category D. Section (vv) Geological (Amendment from the collaborative LA County group) Require more stringent requirements for Method CS -PF by increasing minimum size of panel sheathing and 50 8.22.030(0) anchoring methods. Section (tt) Geological Continuation from previous code cycle (Amendment from the collaborative LA County group) Delete California Residential Code Section which allows intervals of continuous foundations for braced wall 51 8.22.030(p) panel support in Seismic Category D. Section (ww) Geological Continuation from previous code cycle (Amendment from the collaborative LA County group) Roof openings in horizontal 52 8.22.030(q) Section (xx) Geological diaphragms to comply with added RE -M, Section R803.2.4 to limit the maximum roof opening and shear transfer. Continuation from previous code cycle (Amendment from the collaborative LA County group) Design requirement for parapet walls in Seismic Design Category D. 53 8.22.030(r) Section (yy) Geological (Amendment from the collaborative LA County group) Stricter requirement for masonry element reinforcing. 54 8.22.030(s) Section (zz) Geological (Amendment from the collaborative LA County group) Restrict the use of wood foundations in Seismic Category D due to unknown performance in a seismic event and its Climatic and 55 8.22.050(a) resistance to the elements. Section (aaa) Geological Continuation from previous code cycle (Amendment from the collaborative LA County group) Requirement for higher structural design in continuous footings in 56 8.22.050(b) Seismic Design Category D. Section (bbb) Geological (Amendment from the collaborative LA County group) Restrict the use of wood foundations Climatic and 57 8.22.050(c) walls Seismic Design Category D due Section (ccc) Geological to unknown performance in a seismic -M, .# event and its resistance to the elements. Continuation from previous code cycle (Amendment from the collaborative LA County group) Requirement for chimneys to anchor four No. 4 reinforcing bars into the concrete foundation for seismic 58 8.22.060(a) support. Section (ddd) Geological Continuation from previous code cycle (Amendment from the collaborative LA County group) Restrict the use of staples for wood fastening methods. 59 8.22.080(a) Continuation from previous code cycle Section (eee) Geological (Amendment from the collaborative LA County group) Restrict the use of staples in the alternate attachment method. 60 8.22.080(b) Continuation from previous code cycle Section (eee) Geological (Amendment from the collaborative LA County group) Require metallic enclosures installed within the proximity of the mean 61 8.24.090 shoreline to have a higher degree of Section (fff) Climatic corrosion protection. - Continuation from previous code cycle 62 8.32.040 Require protection of ground water by Sections (a), (b) Climatic .# C[I prohibiting water softener discharge to dry wells meeting standards of the Regional Water Quality Control Board. Continuation from previous code cycle Seismic Gas Shutoff Devices. Sections (c), (d), 63 8.32.070 Geological Continuation from previous code cycle (e) Additional Requirements — Building 64 8.40.020(a) Addresses. Sections (a), (b) Climatic Continuation from previous code cycle Problematic Systems and Systems 65 8.40.020(b) Out -of- Service. Sections (a), (b) Climatic Continuation from previous code cycle Firewatch. 66 8.40.020(c) Sections (a), (b) Climatic Continuation from previous code cycle 67 8.40.020(d) Automatic Wet Standpipes. Sections (a), (b) Climatic 68 8.40.020(e) Portable Fire Extinguishers. Sections (a), (b) Climatic Seizure of Fireworks. 69 8A0.020(f) Sections (a), (b) Climatic Continuation from previous code cycle Solar Photovoltaic Standards for 70 8.40.030 rooftops and fire safety. Sections (a), (b) Climatic Continuation from previous code cycle Update the Degree of Occupancy Hazard Table 8.44 -A to coordinate with 71 8.44.050(a) occupancy classes in the California Sections (a), (b) Climatic Building Code. Continuation from previous code cycle 72 8.44.050(b) Exceptions to Sprinkler Systems. Sections (a), (b) Climatic C[I 42 Continuation from previous code cycle Minimum Requirements — Non - 73 8.44.050(c) Occupied Buildings. Sections (a), (b) Climatic Continuation from previous code cycle High /Mid -Rise Building Requirements. Sections (a), (b), Climatic, 74 8.44.090 Continuation from previous code cycle (c), (d) Geologic Smoke Detectors — Existing Residential 75 8.44.100 Occupancies. Sections (a), (b) Climatic Continuation from previous code cycle Standards for Fire Protection Add requirement for a fire protection 76 8.44.110 system notification device for one -and- Sections (a), (b) Climatic two family dwellings. Continuation from previous code cycle Seismic Protection of Fire Sprinkler 77 8.44.120 Systems. Sections (a), (b) Climatic Continuation from previous code cycle Fire Alarm Requirements. 78 8.44.140 Sections (a), (b) Climatic Continuation from previous code cycle Add a definition of Sustainability as the term is used in the CAL-Green Code but not defined with specific applicability to 79 8.106.050 green standards. Section (ggg) Climatic Continuation from previous code cycle (Amendment from the collaborative LA County group) 80 8.106.053 Increase applicability of Chapter 4 of Section (hhh) Climatic 42 SECTION 3. The City Clerk shall certify to the adoption of this Resolution and thenceforth and thereafter the same shall be in full force and effect. APPROVED AS TO FORM MA A O ES MO RIE City Attorney 43 the CALGreen Code to include any work in existing residential occupancies (Amendment from the collaborative LA County group) Require details of how flashing is to be executed in certain locations to ensure moisture protection of building 81 8.106.070 elements and occupants. Section (iii) Climatic Continuation from previous code cycle (Amendment from the collaborative LA County group) Require additional capacity of new 82 8.106.100 electrical systems for all occupancies Section Qjj) Climatic for future electric vehicle charging. SECTION 3. The City Clerk shall certify to the adoption of this Resolution and thenceforth and thereafter the same shall be in full force and effect. APPROVED AS TO FORM MA A O ES MO RIE City Attorney 43 Adopted and approved this 22nd day of October, 2013. am O'Connor, Mayor I, Sarah P. Gorman, City Clerk of the City of Santa Monica, do hereby certify that the foregoing Resolution No. 10776 (CCS) was duly adopted at a meeting of the Santa Monica City Council held on the 22nd day of October, 2013, by the following vote: AYES: Councilmembers: Davis, Holbrook, McKeown, Vazquez, Winterer Mayor O'Connor NOES: Councilmember: None ABSENT: Councilmember: Mayor Pro Tern O'Day ATTEST: Ste- QL Sarah P. Gorman, City Clerk