CESMD |
Information for Strong-Motion Station |
Redwood City - 16-story Office Bldg |
CGS - CSMIP Station 58615 |
Earthquakes recorded by this station |
Latitude | 37.5306 N |
Longitude | 122.2640 W |
Elevation (m) | 1 |
Site Geology | Deep alluvium |
Vs30 (m/sec) | 162 (inferred) |
Site Class | E |
Remarks/Notes | Site information sources |
No. of Stories above/below ground | 16/0 |
Plan Shape | Rectangular |
Base Dimensions | 225' x 100' |
Typical Floor Dimensions | Rectangular with rounded corner 225' x 100' |
Design Date | 1989 |
Instrumentation | 1991. 12 accelerometers, on 4 levels in the building. 3 accelerometers at a reference free-field site. |
Vertical Load Carrying System | Concrete slab floors, 2.5" and 4.5" thick, with welded metal studs, over metal deck and supported by distributed steel frames. |
Lateral Force Resisting System | Perimeter moment resisting steel frames in both directions, but only at selected bays. Four interior eccentric braced frames in the transverse direction. |
Foundation Type | Concrete spread footings supported by prestressed concrete driven piles and interconnected by grade beams, 30" to 48" thick. |
Remarks | Seismic design criteria was based on the 1985 UBC and the Redwood City Younger Bay Ordinace. |