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California's new Emergency Structural Amendments

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For those of you practicing in California

You might be interested in knowing that new Emergency Amendments have been published and are available for public. The amendments apply to the state buildings under jurisdiction of Building Standards Commission (BSC). While local jurisdictions are not mandated to adopt these provisions, BSC has strongly suggested their adoption to all Calfornia entities. The amendments were compiled last summer through the efforts of the BSC staff and volunteers who served on an Ad hoc committee. 

The intent was to make available to the public a series of amendments that would bring the 97 UBC more into alignment with current technology, since we would stay on that code for the foreseeable future. Prior to that, there were parallel efforts in LA and Bay area by local ICBO structural committees to the same thing. So, the State tried to bring consistency and uniformity to the entire state by formulating these amendments. Some of the highlights are:

Adoption of the 97 AISC Seismic with supplement 2
Adoption of 97 NDS
Provisions for simplified approach to diaphragm rigidity issue
Clarification of some load combinations
New requirements for Ordinary Moment Frames

The entire text can be found at:

Ben Yousefi, SE
Santa Monica, CA

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