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The existing Superbay Hangar is the largest hangar at SFO, but did not have a fire suppression system capable of suppressing jet fuel fires.  The project included adding 48 new foam generators and associated piping and a new sprinkler system, all of which is supported from the existing roof framing. The structure consists of light framed space trusses that cantilever from the central core 300 ft, which combined with the challenging geometry of the building made these supports especially challenging.

The project also included adding a new two-story pump house building to house pumps, piping, generators, and many other pieces of equipment.  The pump house consists of steel framed floors, CMU shear walls, and tubex pile foundations.  Adjacent to the pump house are two new 50 ft diameter water tanks that are 50 ft tall.  The tanks are supported on mat slabs over tubex piles.  
 

SFO Superbay Hangar Fire Suppression

LOCATION:

San Francisco, CA

CLIENT, OCCUPANCY:

San Francisco International Airport

CONTRACTOR/TEAM:

The Weitz Company

OCI Consulting Engineers

Tenenbaum/Manheim Engineers

CONSTRUCTION COST: $38 M

SCALE:

260,000 sf existing hangar

6,600 sf pump house

(2) 50 ft diameter water tanks

CONSTRUCTION TYPE:

Existing steel framed hangar and steel frame with concrete walls pump house

ROLE:

RJSD was a subconsultant to Tenenbaum/Manheim Engineers