Information for Strong-Motion Station
Concord - 4-story Office Bldg [Abandoned]
CGS - CSMIP Station 58466
Earthquakes recorded by this station
(Station Photograph - click to enlarge)(Sensor Layout - click to see PDF File)
Latitude 37.9727 N
Longitude 122.0591 W
Elevation (m) 9
Site Geology Alluvium
Vs30 (m/sec) 258 (inferred)
Site Class D
Remarks/Notes Site information sources
No. of Stories above/below ground 4/0
Plan ShapeRectangular
Base Dimensions580 x 225 ft
Typical Floor Dimensions580 x 225 ft
Design Date1979
Instrumentation2010, 16 accelerometers on 5 levels. and 3 at free-field.
Vertical Load Carrying SystemConcrete over steel deck supported by steel beams and columns.
Lateral Force Resisting SystemDistributed steel moment frames. All column and girder connections are moment connections.
Foundation TypeSteel columns are supported by concrete spread footings tied with concrete grade beams.
RemarksThe building was designed according to the 1979 UBC.