Los Angeles County’s Board of Supervisors voted Wednesday to approve a motion requiring all non-ductile, concrete high-rise structures in LA County to be given seismic retrofits within the next ten years.
The motion applies to all incorporated communities in the county and must be codified by the directors of public works within six months according to the supervisors. The update comes as multiple LA media outlets reported widespread weak spots across the region in response to the February 6th Turkey-Syria Earthquake that killed more than 50,000.
Under the updated building codes, current building owners have a ten-year time period in which to submit structural evaluation assessments to the agency. Properties will either be retrofitted or demolished according to the language put forth by Supervisors Holly Mitchell and Hilda Solis.
In addition to the high-rises, all soft-story structures that do not undergo retrofits will be required to submit their own reports to public works. The last available figures have said only a small (14%) portion of those buildings are currently in compliance with the county’s most recent seismic code guidelines.
Perhaps most importantly, the measure calls for financial reimbursements and other incentives to help building owners enact the retrofits. Residential buildings are the most common type of soft-story structures in the county. A U.S. Geological Survey simulation estimates that a 7.8-magnitude quake in Southern California — the same strength as the one in Turkey and Syria — could cause the full or partial collapse of at least 50 non-ductile concrete buildings, kill nearly 1,800 people and injure as many as 50,000.
1 Comment
I don't know how they fixed the downtown hi-rise office buildings when it was widely reported twenty-five thirty years ago that the contractors used the wrong welding rods. The news also mentioned that it would take 20-50 million dollars per hi-rise. After a while, the issue was suspiciously dropped from the news media. I doubt that the expensive fix was ever done.
It would be worth probing into by a team of investigative journalists.
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