Information for Strong-Motion Station
San Francisco - 15-story Univ. Hospital
CGS - CSMIP Station 58257
Earthquakes recorded by this station
(Station Photograph - click to enlarge)(Sensor Layout - click to see PDF File)
Latitude 37.7627 N
Longitude 122.4572 W
Elevation (m) 125
Site Geology Weathered rock (sandstone/shale)
Vs30 (m/sec) 678 (inferred)
Site Class C
Remarks/Notes Site information sources
No. of Stories above/below ground 15/1
Plan ShapeIrregular below 8th floor; rectangular upper floors.
Base Dimensions214 x 181 ft
Typical Floor Dimensions239 x 77 ft
Design Date1977
Instrumentation2005, 16 accelerometers, on 5 levels. 3 accelerometers at a reference free-field site.
Vertical Load Carrying SystemConcrete slabs over metal decks supported by steel beams and columns.
Lateral Force Resisting SystemComposite steel plate shear walls with a 25% moment resisting steel frame. The composite shear walls consists of steel plates encased in concrete on both sides.
Foundation TypeConcrete mat foundation on the east side and 5-feet diameter caissons on the west side.
RemarksThis building is instrumented as part of OSHPD/CSMIP agreement to instrument hospitals in California.