CESMD

Information for Strong-Motion Station

Walnut Creek - 10-story Commercial Bldg

CGS - CSMIP Station 58364

Earthquakes recorded by this station

 

(Station Photograph - click to enlarge)	(Sensor Layout - click to see PDF File)

   

Latitude	37.9069 N
Longitude	122.0661 W
Elevation (m)	53
Site Geology	Rock (sedimentary)
Vs30 (m/sec)	- -
Site Class	C
Remarks/Notes	Site information sources

 

No. of Stories above/below ground	10/0
Plan Shape	Rectangular with appendage at first floor only
Base Dimensions	104'-2" x 148'-2" (56'-1" x 58'-2" appendage)
Typical Floor Dimensions	104'-2" x 148'-2"
Design Date	1970
Instrumentation	1979. 16 accelerometers, on 4 levels in the building.

 

Vertical Load Carrying System	2-3/4" lightweight concrete over 2-3/4" precast panel slab supported by precast, prestressed concrete beams and concrete columns.
Lateral Force Resisting System	Interior core concrete shear wall and exterior precast and cast-in-place concrete frame.
Foundation Type	Spread footings and caissons
Remarks	--