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Office Complex 2401 Crow Canyon Rd. San Ramon, CA
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The improvements developed by Fratessa Forbes Wong focused on creating strong diaphragms (or plates) at the roof and second floor levels, then providing strong perimeter ties and bracing elements. The strengthening at the floor and roof areas was accomplished by placing glass fiber reinforcing embedded in epoxy. This was supplemented by carbon fiber and steel ties, chords, and collectors. The perimeter bracing consists of concentric braced frames using tube steel members and continuous perimeter plates bolted to existing concrete framing. The goal of seismic improvements was to gain strength and performance consistent with the current building code. |
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