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| (Station Photograph - click to enlarge) | (Sensor Layout - click to see PDF File) |
| CESMD |
| Information for Strong-Motion Station |
| San Francisco - 4-story Office Bldg |
| CGS - CSMIP Station 58197 |
| Earthquakes recorded by this station |
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| (Station Photograph - click to enlarge) | (Sensor Layout - click to see PDF File) |
| Latitude | 37.7885 N |
| Longitude | 122.3900 W |
| Elevation (m) | 5 |
| Site Geology | Shallow alluvium over rock |
| Vs30 (m/sec) | 1530 (measured) |
| Site Class | B |
| Remarks/Notes | Site information sources |
| No. of Stories above/below ground | 4/1 |
| Plan Shape | Rectangular |
| Base Dimensions | 144 x 275 ft (63.4 x 89.9 m) |
| Typical Floor Dimensions | 144 x 275 ft (63.4 x 89.9 m) |
| Design Date | 1946 & 2000 (retrofit) |
| Instrumentation | 2002. 18 accelerometers, on 5 levels in the building. |
| Vertical Load Carrying System | Concrete flat slabs and conrete columns supported on friction pednulum system isolators. |
| Lateral Force Resisting System | Non-ductile concrete perimeter wall frames in both directions. In the seismic upgrade, concrete shear walls were added and 98 friction pendulum system isolators were inserted at each column below the Level 1 slab. |
| Foundation Type | Concrete spread footings. |
| Remarks | -- |