CSMIP Strong-Motion Instrumentation and Records from Transportation Structures—Bridges

by A. F. Shakal, California Div of Mines &, Geology, Sacramento, CA, USA,
J. T. Ragsdale, California Div of Mines &, Geology, Sacramento, CA, USA,
R. W. Sherburne, California Div of Mines &, Geology, Sacramento, CA, USA,



Document Type: Proceeding Paper

Part of: Lifeline Earthquake Engineering: Performance, Design and Construction

Abstract:

Seven transportation structures have been instrumented by the California Strong Motion Instrumentation Program (CSMIP), including four bridges. Records (in excess of 0. 25 g maximum acceleration) have been obtained from three highway bridges. At one bridge, a freeway overpass on Hwy 101 in Rio Dell (near Eureka in northern California), strong shaking has been recorded from three separate earthquakes. Preliminary analyses indicate that the vertical response of the bridge superstructure was greater than the horizontal response.



Subject Headings: Highway bridges | Instrumentation | Highway and road design | Ground motion | Earthquake engineering | Seismic tests | Highway and road structures | California | United States

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