15.26.060 - Effect of adoption and repeals.
This Chapter shall be known as the "Mandatory Seismic Screening Of Multiple Story Residential Buildings," may be cited as such, and will be referred to herein as "this Chapter."
(Ord. No. 12966, § 2, 7-28-2009)
This Chapter is intended to promote public safety and welfare and safeguard life and limb, health, and property through a mandatory program for screening residential buildings which are most vulnerable to earthquake damage and catastrophic collapse. The non-engineered (prescriptive) analytical standards set forth herein will serve to screen buildings for potentially critical structural deficiencies in the lateral force resisting system of the ground-floor and the potential risk for seismically induced damage from an earthquake.
This Chapter is not intended to create or otherwise establish or designate any particular class or group of persons who will or should be especially protected or benefited by the terms set forth herein, and these standards are not intended to endorse, authorize, or approve any prior work accomplished without required permits, inspections, fees, or final approvals.
(Ord. No. 12966, § 2, 7-28-2009)
A.
Level 1 Screening—Non-Engineered Analysis (Prescriptive).
1.
This Chapter establishes standards for non-engineered analysis (prescriptive) without requiring plans or structural calculations prepared by a registered design professional to screen residential buildings for the potential capacity to resist seismically induced lateral loads and potentially identify critical structural deficiencies which would foment catastrophic collapse. Sufficient documentation shall be submitted to accurately establish existing conditions. When the Building Official determines that existing conditions are beyond the scope of these standards, a Level 2 Evaluation shall be submitted by the owner to the Building Official.
2.
These standards are intended to screen residential buildings for potential critical structural deficiencies in the lateral force resisting system but will not necessarily quantify the level of risk for property damage and injury to occupants and loss of life from an earthquake.
3.
Alternate details and methods equivalent to or exceeding these standards are permitted when approved by the Building Official. Sufficient written documentation shall be submitted by the owner to substantiate such equivalency, as determined by the Building Official.
B.
Level 2 Evaluation—Engineered Analysis (Non-Prescriptive).
1.
This Chapter also allows an owner to perform an engineered analysis (non-prescriptive) which is equivalent to or exceeds the standards set forth in this Chapter for a non-engineered analysis (prescriptive). Structural calculations shall be prepared by a registered design professional. Analysis and documentation with respect to lateral strength, deflection, and soil capacity shall be in accordance with the Oakland Building Construction Code and approved by the Building Official.
Exception: Pursuant to California Health and Safe Code Sections 19160 et seq., the provisions of Appendix A4 of the International Existing Building Code and associated amendments promulgated by the Structural Engineers Association of California may be used for evaluating residential buildings.
2.
Engineered methods (non-prescriptive) for evaluating critical structural deficiencies may incorporate the standards set forth in this Chapter for a non-engineered analysis (prescriptive) if approved by the Building Official.
(Ord. No. 12966, § 2, 7-28-2009)
A.
Inclusion. This Chapter applies to multiple-story buildings that were designed before the adoption by the State of California on January 1, 1991, of the 1988 edition of the Uniform Building Code, and are classified either as a Residential Group R-1 or R-2 occupancy and have five or more dwelling units and have an attached Assembly Group A, Business Group B, Mercantile Group M, Storage Group S, or Utility and Miscellaneous Group U occupancy located on the ground-floor.
B.
Historic Buildings. Residential buildings that have been qualified as historic shall be permitted to use alternate building regulations, as set forth in the California Historical Building Code, to preserve their original or restored architectural elements and features.
(Ord. No. 12966, § 2, 7-28-2009)
Where any Section, Subsection, sentence, clause, phrase, or other part of this Chapter are amended subsequently, all provision of the original Section not so specifically amended shall remain in full force and effect and all amended provisions shall be considered as added thereto.
(Ord. No. 12966, § 2, 7-28-2009)
15.26.060 - Effect of adoption and repeals.
A.
Legislation. Unless expressly stated herein, this Chapter is not intended to amend, repeal, or supersede provisions of any other City codes, regulations or ordinances, including the demolition ordinance, Earthquake Damage Structures Code, Unreinforced Masonry Buildings Code, Dangerous Building and Structures Code, Planning Code, Building Construction Code, Building Maintenance Code, Fire Code, or Voluntary Seismic Strengthening For Residential Buildings Code.
B.
Conflict. In any specific Section or case where there is a conflict within or between or among provisions, the most restrictive which prescribes and establishes the higher standard of safety or public benefit shall prevail and control.
C.
Validity. Neither the adoption of this Code nor the repeal by the ordinance codified in this Chapter of any City ordinance shall in any manner affect the prosecution for violation of ordinances, which violations were committed prior to the effective date hereof or be construed as a waiver of any license or penalty at said effective date due and unpaid under such ordinance relating to the collection of any such license or penalty or the penal provisions applicable to any violations hereof.
(Ord. No. 12966, § 2, 7-28-2009)