CESMD
Information for Strong-Motion Station
Pasadena - 9-story Commercial Bldg
CGS - CSMIP Station 24571
Earthquakes recorded by this station
 
(Station Photograph - click to enlarge)(Sensor Layout - click to see PDF File)
   
Latitude 34.1463 N
Longitude 118.1439 W
Elevation (m) 259
Site Geology Deep alluvium
Vs30 (m/sec) 428 (inferred)
Site Class C
Remarks/Notes Site information sources
 
No. of Stories above/below ground9/1
Plan ShapeRectangular
Base Dimensions186'-8" x 78'-10"
Typical Floor Dimensions212'-10" x 85'-10"
Design Date1963
Instrumentation1989: 15 accelerometers on 5 levels in the building. 2024: Reinstrumentation of building; 24 accelerometers on 8 levels.
 
Vertical Load Carrying SystemConcrete flat slabs (11" thick) with drop panels supported by concrete columns.
Lateral Force Resisting SystemReinforced concrete slab-column system providing moment resistance; beam-column system at the core of each floor.
Foundation TypeConcrete spread footings.
Remarks--