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Division 95

SEC. 91.9508. ENGINEERING ANALYSIS.

Los Angeles Building Code — LAMC Chapter IX · 2026-08 edition · updated 2026-09-09 · Los Angeles

91.9508.1. Scope of Analysis. This division requires the alteration, repair, replacement or addition of structural elements and their connections to meet the following requirements in this section.

91.9508.2. Building Structural Analysis, Design and Evaluation. (Amended by Ord. No. 185,587, Eff. 7/16/18.) The building shall meet one of the following criteria:

  1. Strength of the lateral-force resisting system shall meet or exceed 75% of the seismic base shear specified in "The Equivalent Lateral Force Procedure" of the current Los Angeles Building Code. Elements not designated to be part of the lateral-force resisting system shall be adequate for gravity load effects and seismic displacement due to the full (100%) of the design story drift specified in the current Los Angeles Building Code seismic provisions.

  2. Meet or exceed the requirements specified for "Basic Performance Objective for Existing Buildings" of ASCE 41, using a Tier 3 procedure and the two level performance objective for existing buildings (BPOE) in Table 2-1 of ASCE 41 for the applicable risk category, and using ground motions and procedures established by the Department. (Amended by Ord. No. 186,488, Eff. 12/27/19.)

  3. Pursuant to LAMC Subdivision 91.104.2.6, other methods approved by the Department deemed to be equivalent to the standards set forth in Items 1 and 2 above.

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▸Contents — Los Angeles Building Code — LAMC Chapter IX
Los Angeles Building Code — LAMC Chapter IX
  1. Chapter IX
  2. Chapter IX — BUILDING REGULATIONS
  3. Division 1
  4. Division 2
  5. Division 3
  6. Division 4
  7. Division 5
  8. Division 6
  9. Division 7
  10. Division 8
  11. Division 9
  12. Division 10
  13. Division 11
  14. Division 12
  15. Division 13
  16. Division 14
  17. Division 15
  18. Division 16
  19. Division 17
  20. Division 18
  21. Division 19
  22. Division 20
  23. Division 21
  24. Division 22
  25. Division 23
  26. Division 24
  27. Division 25
  28. Division 26
  29. Division 27
  30. Division 28
  31. Division 29
  32. Division 30
  33. Division 31
  34. Division 32
  35. Division 33
  36. Division 34
  37. Division 35
  38. Division 61
  39. Division 62
  40. Division 63
  41. Division 67
  42. Division 70
  43. Division 71
  44. Division 72
  45. Division 82
  46. Division 83
  47. Division 85
  48. Division 88
  49. Division 89
  50. Division 90
  51. Division 91
  52. Division 92
  53. Division 93
  54. Division 94
  55. ▸Division 95
    Overview
    1. SEC. 91.9501. PURPOSE.
    2. SEC. 91.9502. SCOPE.
    3. SEC. 91.9503. DEFINITIONS.
    4. SEC. 91.9504. COMPLIANCE REQUIREMENTS.
    5. SEC. 91.9505. ADMINISTRATION.
    6. SEC. 91.9506. OCCUPANT AND TENANT ADVISORY.
    7. SEC. 91.9507. HISTORICAL BUILDINGS.
    8. SEC. 91.9508. ENGINEERING ANALYSIS.
    9. SEC. 91.9509. INFORMATION REQUIRED ON PLANS.
    10. SEC. 91.9510. VIOLATION / PENALTY.
    11. SEC. 91.9511. SEVERABILITY.
  56. Division 96
  57. Division 5 — REGISTRATION
  58. Division 16A
  59. Division 17
  60. Division 18
  61. Division 19
  62. Division 20
  63. Division 21
  64. Division 17
  65. Division 18
  66. Division C
  67. Division D

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