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| (Station Photograph - click to enlarge) | (Sensor Layout - click to see PDF File) |
| CESMD |
| Information for Strong-Motion Station |
| Los Angeles - 15-story Govt Office Bldg |
| CGS - CSMIP Station 24569 |
| Earthquakes recorded by this station |
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| (Station Photograph - click to enlarge) | (Sensor Layout - click to see PDF File) |
| Latitude | 34.0580 N |
| Longitude | 118.2495 W |
| Elevation (m) | 119 |
| Site Geology | Rock (sedimentary) |
| Vs30 (m/sec) | 392 (measured) |
| Site Class | C |
| Remarks/Notes | Site information sources |
| No. of Stories above/below ground | 15/2 |
| Plan Shape | Rectangular |
| Base Dimensions | 382' x 263' |
| Typical Floor Dimensions | 344' x 159' |
| Design Date | 1961 |
| Instrumentation | 1990. 15 accelerometers, on 4 levels in the building. 3 accelerometers at a reference free-field site. |
| Vertical Load Carrying System | Moment resisting steel frame. 1.5" steel deck with 2.5" concrete fill. At the two basement levels the columns are encased in concrete and the beams and slabs are made of concrete. |
| Lateral Force Resisting System | Moment resisting steel frames from the first floor to the roof. Concrete shear walls at the basement levels. Four shear walls in the core area were extended up to the second level for drift control. |
| Foundation Type | Most base columns have individual spread footings, except those in the core have combined wall and column footings. |
| Remarks | The building was designed and instrumented in accordance with the 1960 Los Angeles Building Code. |