Information for Strong-Motion Station
Tehachapi - Bear Valley Police Bldg
CGS - CSMIP Station 34189
Earthquakes recorded by this station
(Station Photograph - click to enlarge)(Sensor Layout - click to see PDF File)
Latitude 35.1472 N
Longitude 118.5760 W
Elevation (m) 1287
Site Geology Shallow alluvium over hard rock (granitic)
Vs30 (m/sec) 504 (inferred)
Site Class C
Remarks/Notes Site information sources
No. of Stories above/below ground1/0
Plan ShapeNearly Rectangular
Base Dimensions60' x 76' (4115 S.F.)
Typical Floor DimensionsNearly Rectangular 60' x 76'
Design Date1998
Instrumentation2002. 12 accelerometers, on 4 levels in the building.
Vertical Load Carrying SystemThe roof diaphragm is 5/8" plywood sheathing covered by asphalt roof shingles (12 by 4 pitch). Exterior finish of the building is T-III wood siding. Interior columns comprised of structural steel tubing support the attic and a portion of the roof. 2x6 stud bearing walls are located along the building perimeter and support the remainder of the roof.
Lateral Force Resisting SystemWood frames, one-sided plywood perimeter shear walls.
Foundation Type4" concrete slab on grade with interior isolated spread footings, interior and perimeter continuous footings.