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| (Station Photograph - click to enlarge) | (Sensor Layout - click to see PDF File) |
| CESMD |
| Information for Strong-Motion Station |
| San Francisco; US Court of Appeals; Bldg Array 1 |
| NSMP Station 1735 |
| Earthquakes recorded by this station |
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| (Station Photograph - click to enlarge) | (Sensor Layout - click to see PDF File) |
| Latitude | 37.7804 N |
| Longitude | 122.4099 W |
| Elevation (m) | 11 |
| Site Geology | |
| Vs30 (m/sec) | |
| Site Class |
| No. of Stories above/below ground | 4/1 |
| Plan Shape | rectangular with a large central atrium |
| Base Dimensions | 330 ftx265 ft |
| Typical Floor Dimensions | 330 ftx265 ft with a large central atrium |
| Design Date | 1905 (extended in 1933) |
| Instrumentation | 1994, 36 accelerometers on six levels of building. |
| Vertical Load Carrying System | 6-inch thich Concrete slab supported by steel frames and bearing masonry walls. |
| Lateral Force Resisting System | Originally steel frame with unreinforced masonry and stone walls. The lateral system was retrofitted by using 256 friction pendulum base isolators, adding recinforced concrete shear walls, strenthening the diaphragms, and adding a new steel moment resisting frame for atrium. |
| Foundation Type | Steel grillage footings encased in unreinforced concrete. The foundation system for the 1933 wing consists of reinforced-concrete piles and pile caps. |
| Remarks | -- |