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| (Station Photograph - click to enlarge) | (Sensor Layout - click to see PDF File) |
| CESMD |
| Information for Strong-Motion Station |
| Portola Valley - Gilbert Residence |
| CGS - CSMIP Station 58576 |
| Earthquakes recorded by this station |
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| (Station Photograph - click to enlarge) | (Sensor Layout - click to see PDF File) |
| Latitude | 37.3895 N |
| Longitude | 122.2006 W |
| Elevation (m) | 225 |
| Site Geology | Rock (sandstone) |
| Vs30 (m/sec) | 438 (inferred) |
| Site Class | C |
| Remarks/Notes | Site information sources |
| No. of Stories above/below ground | 2/1 |
| Plan Shape | Rectangular |
| Base Dimensions | 74 x 68 ft |
| Typical Floor Dimensions | 74 x 34 ft |
| Design Date | 2012 |
| Instrumentation | 2014, 8 accelerometers on 3 levels in the building and 3 at a free-field. |
| Vertical Load Carrying System | Plywood sheathing on wood joists supported by wood and steel beams, steel columns, wood stud and concrete walls. |
| Lateral Force Resisting System | Plywood and concrete shear walls in each direction. Also, steel damper frames with viscous dampers (10 to 30 kip capacity) are distributed in each direction at perimeter and interior locations. |
| Foundation Type | 1' thick concrete mat. Soil nails used at Basement and Lower Floor levels to tie back the concrete retaining wall. |
| Remarks | Structural design is based on the 2010 California Building Code. |