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| (Station Photograph - click to enlarge) | (Sensor Layout - click to see PDF File) |
| CESMD |
| Information for Strong-Motion Station |
| Los Angeles - 54-story Office Bldg |
| CGS - CSMIP Station 24629 |
| Earthquakes recorded by this station |
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| (Station Photograph - click to enlarge) | (Sensor Layout - click to see PDF File) |
| Latitude | 34.0483 N |
| Longitude | 118.2617 W |
| Elevation (m) | 79 |
| Site Geology | Alluvium over rock (sedimentary) |
| Vs30 (m/sec) | 314 (inferred) |
| Site Class | D |
| Remarks/Notes | Site information sources |
| No. of Stories above/below ground | 54/4 |
| Plan Shape | Rectangular |
| Base Dimensions | 212' x 136' |
| Typical Floor Dimensions | Rectangular w/2 rounded sides 196'x121' to 156'x121' |
| Design Date | 1988 |
| Instrumentation | 1991. 20 accelerometers, on 6 levels in the building. |
| Vertical Load Carrying System | Concrete slab (2.5" thick) over 3" steel deck with welded metal studs, supported by steel frames. The spans between columns vary from about 10' to 47". |
| Lateral Force Resisting System | Moment resisting perimeter steel frame (framed tube) with 10' column spacing. There are Virendeel trusses and 48 inch deep transfer girders at the 36th and 46th floors where vertical setbacks occur. |
| Foundation Type | Concrete mat foundation, 7' and 9.5' thick, and 6" concrete slab on grade. |
| Remarks | The building's dynamic analyses showed that the period of the building is about 7.3 sec. The building was designed in accordance with the 1985 L.A. City Code and Title 24 of Calif. Administrative Code. |