CESMD
Information for Strong-Motion Station
Redlands - 7-story Commercial Bldg
CGS - CSMIP Station 23481
Earthquakes recorded by this station
 
(Station Photograph - click to enlarge)(Sensor Layout - click to see PDF File)
   
Latitude 34.0557 N
Longitude 117.1791 W
Elevation (m) 414
Site Geology Deep alluvium
Vs30 (m/sec) 250 (inferred)
Site Class D
Remarks/Notes Site information sources
 
No. of Stories above/below ground7/1
Plan ShapeIrregular Base, Rectangular Tower
Base Dimensions250' x 228'-2.5"
Typical Floor Dimensions140' x 93'
Design Date1980
Instrumentation1984. 13 accelerometers, on 4 levels in the building.
 
Vertical Load Carrying System2.5" concrete slab on steel deck, supported by steel beams, girders and columns.
Lateral Force Resisting SystemPerimeter steel moment frame
Foundation TypeSpread footings
Remarks--