PROJECTS > OFFICE 120 Howard Street

Project Description / Overview

NYA used Performance Based Design methodologies to minimize intervention to this existing 8-story 160,000sf office building in downtown San Francisco for a proposed 4- story vertical addition. The vertical addition increased the gross square footage of the building by approximately 50%.


Nonlinear response history analysis was used to fully capture the inherent attributes of the existing structural system, thereby resulting in an extremely limited amount (<$300k) of seismic retrofitting to bring the building up to the current California Building Code's seismic requirements. The innovative structural approach underwent a rigorous peer review by eight structural engineers.
home2 about2 projects2 media2 careers2 contact2

Copyright © 2009 by Nabih Youssef Associates