CESMD |
Information for Strong-Motion Station |
Riverside - 2-story Gov Off. Bldg [Demolished] |
CGS - CSMIP Station 13620 |
Earthquakes recorded by this station |
Latitude | 33.9790 N |
Longitude | 117.3730 W |
Elevation (m) | 259 |
Site Geology | Deep alluvium over rock (granitic) |
Vs30 (m/sec) | 418 (measured) |
Site Class | C |
Remarks/Notes | Site information sources |
No. of Stories above/below ground | 2/0 |
Plan Shape | Rectangular |
Base Dimensions | 173' x 66' |
Typical Floor Dimensions | 173' x 66' |
Design Date | 1950 |
Instrumentation | 1991. 12 accelerometers, on 3 levels in the building. |
Vertical Load Carrying System | Wood frame diaphragms (2"x14" wood joists @ 16" oc and 1"x6" diagonal sheathing) supported by steel frame and load bearing RM and concrete walls. |
Lateral Force Resisting System | 2nd floor: 8" concrete block walls with vertical reinforcement and 8" concrete walls in transverse direction only. 1st floor: 10" thick concrete walls on the perimeter and interior walls in the transverse direction only. |
Foundation Type | Concrete spread footings supporting the columns and walls. |
Remarks | -- |