Information for Strong-Motion Station
Ventura - 6-story Hospital
CGS - CSMIP Station 25594
Earthquakes recorded by this station
(Station Photograph - click to enlarge)(Sensor Layout - click to see PDF File)
Latitude 34.2739 N
Longitude 119.2581 W
Elevation (m) 38
Site Geology Deep alluvium
Vs30 (m/sec) 245 (measured)
Site Class D
Remarks/Notes Site information sources
No. of Stories above/below ground6/1
Plan ShapeRectangular
Base Dimensions208 x 122 ft
Typical Floor Dimensions208 x 122 ft
Design Date2011
Instrumentation2016, 15 accelerometers on 4 levels of the structure and 9 downhole accelerometers at three depths beneath the structure, plus a geotechnical array of 6 accelerometers near the structure.
Vertical Load Carrying SystemConcrete fill over metal decks supported by steel beams and columns. The first floor framing is comprised of concrete pan joists and floor slabs supported by concrete beams and columns.
Lateral Force Resisting SystemSpecial concentrically braced steel frames in both directions. Steel braced frames are located at the perimeter and interior at each above-grade level. Special reinforced concrete shear walls resist lateral forces at the basement.
Foundation TypeConcrete pile caps with steel rod pile anchors at shear walls and spread footings at interior columns. The soil beneath the building was improved using Cement Deep Soil Mixing (CDSM) columns.
RemarksThis building was designed in accordance with the 2007 California Building Code. The hospital consists of 3 different structures separated by seismic joints. Only the west structure is instrumented. Funding for instrumentation was provided by the owner as required by OSHPD. CSMIP provided assistance in instrumentation.