Section 506E — ENGINEERING CRITERIA FOR EVALUATION AND RETROFIT.

506E.2 Engineering Criteria.

San Francisco Building Inspection Commission Codes · edición 2022 · actualizado 2026-07-08 · San Francisco

Esta sección aún no está traducida y se muestra en inglés.

506E.2 Engineering Criteria. A proposed seismic evaluation and/or retrofit plan shall demonstrate that the building satisfies one of the following:

  1. FEMA P-807. Seismic Evaluation and Retrofit of Multi-Unit Wood-Frame Buildings With Weak First Stories, as detailed in an Administrative Bulletin to be prepared pursuant to 506E.3 of this ordinance, with the performance objective of 50 percent maximum probability of exceedance of Onset of Strength Loss drift limits with a spectral demand equal to 0.50 SMS, or

  2. ASCE 41-13. Seismic Evaluation and Rehabilitation of Existing Buildings, with the performance objective of Structural Life Safety in the BSE1E earthquake, or

  3. ASCE 41-06. Seismic Rehabilitation of Existing Buildings, with the performance objective of Structural Life Safety in the BSE-1 earthquake with earthquake loads multiplied by 75 percent, or

  4. for evaluation only, ASCE 31-03, Seismic Evaluation of Existing Buildings. With the performance level of Life Safety, or

  5. for retrofit only, 2012 International Existing Building Code (IEBC) Appendix A-4, or

  6. any other rational design basis deemed acceptable by the Department that meets or exceeds the intent of this Chapter.

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