50 UN Plaza

Hinman performed a vehicle approach speed analysis to assess the anti-ram requirements around the building in an attempt to reduce the perimeter security requirements at the site. In addition, we assessed the structure’s vulnerability to internal explosive events.

In an effort to meet sustainability, historic and security goals we are considering a cable catchment system for the existing windows.

Hinman worked to determine the necessary upgrades to provide a protection level consistent with the GSA’s Security Criteria Level C.

Hinman is performing advance finite element modeling of this system and will oversee physical blast testing later in the year.

This 1930’s building has a structural steel frame and reinforced concrete slabs. Located in a highly populated and trafficked area of San Francisco’s Civic Center, it faces many potential security threats; the site has small standoffs on all street sides and a farmers’ market is held immediately adjacent in the plaza. There is little perimeter control, with large trucks often parking in the plaza very near the building, making it vulnerable to attack.

Hinman worked to determine the necessary upgrades to provide a protection level consistent with the GSA’s Security Criteria Level C.