CESMD
Information for Strong-Motion Station
San Bernardino - 3-story Motel
CGS - CSMIP Station 23701
Earthquakes recorded by this station
 
(Station Photograph - click to enlarge)(Sensor Layout - click to see PDF File)
   
Latitude 34.1629 N
Longitude 117.3332 W
Elevation (m) 435
Site Geology Shallow alluvium over hard rock (metamor)
Vs30 (m/sec) 591 (inferred)
Site Class C
Remarks Site information sources
 
No. of Stories above/below ground3/0
Plan ShapeT shaped
Base Dimensions132' x 181'
Typical Floor Dimensions132' x 181'
Design Date1985
Instrumentation1994. 15 accelerometers, on 4 levels in the building.
 
Vertical Load Carrying SystemThe floor systems on the 2nd and 3rd floors consist of 1/2" plywood nailed to 2x10 wood joists at 16" o/c. The roof is made of wood trusses at 24" o/c. The joists and the trusses are supported on bearing walls or on header beams.
Lateral Force Resisting SystemPlywood shear walls with 2x6 studs at 16" o/c for the first story only. Gypsum board walls with 2x6 studs at 16" o/c for the second and third stories. Floor diaphragms consist of 1/2" plywood nailed to 2x10 wood joists at 16" o/c.
Foundation TypeAll shear walls are supported on 18"x18" concrete grade beams. Walls are anchored to the grade beams with 5/8" diameter anchor bolts. There is a 4" concrete slab on grade.
RemarksThe building was designed as per the 1982 UBC. The seismic design is for Zone 4.