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4-309 Reconstruction or Alteration Projects in Excess of $100,000 in Cost
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- The structural engineer shall submit a written statement to DSA, indicating that the project does not contain any work of a structural nature.
- The design professional in general responsible charge of the project shall certify, in writing, that the plans and specifications for the project meet any applicable fire and life-safety standards, and do not specify any work of construction that is regulated by the accessibility standards of Title 24. This certification shall be submitted to DSA, and shall bear the stamp and signature of the design professional.
- Within 10 days of the completion of the project, a DSA certified project inspector shall sign and submit to DSA a verified report on a form prescribed by DSA, indicating that the project was completed in conformance with the plans and specifications.
- Existing noncomplying, nonstructural elements. Existing noncomplying, nonstructural elements discovered during the design or construction of a reconstruction, alteration or addition to an existing complying school building and directly affected by the work of construction shall be corrected to comply with the bracing and anchorage requirements of currently effective regulations.
- When the cost of the reconstruction, alteration, or addition project exceeds 50 percent of the replacement value of the existing building. Air-conditioning equipment and insulation materials costs, including installation, need not be included in the percentage of replacement value calculation. For the purposes of this section, the cost of the reconstruction, alteration or addition project need not include the cost of voluntary lateral force-resisting system modifications in accordance with Section 4-309(d), except the cost shall be included when the structure is located in a fault hazard zone and a geologic hazard report demonstrates that the structure is located within 50 feet of the trace of an active fault as defined in Section 4-317(e).
- An increase in the effective seismic weight, or wind force due to increase in surface area exposed to wind, in any story by more than 10 percent, cumulative since the original construction.
- A structural irregularity that is prohibited in ASCE 7 Section 22.214.171.124 and Section 1617A.1.10, Part 2.
- When a change of occupancy results in a structure being reclassified to a higher risk category.
- Voluntary lateral force-resisting system modifications. Alterations to existing structural components or additions of new structural components that do not exceed the limitations of Section 4-309(c)2 for required rehabilitation and are initiated for the purpose of increasing the strength or stiffness of the lateral force-resisting system of an existing structure are permitted to be evaluated and designed in accordance with Section 317.11 of Part 10, Title 24, C.C.R. and Section 1609A, Part 2, Title 24, C.C.R. for voluntary lateral force-resisting system modifications.
- New section filed 2-28-86; effective 30th day thereafter (Register 86, No. 9).
- (OSA/SS 1/92) Regular order by the Office of the State Architect/Structural Safety Section to amend Section 4-309, Part 1, Title 24, C.C.R. Filed with the Secretary of State on December 15, 1992; effective July 1, 1993. Approved by the California Building Standards Commission on December 9, 1992.