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Seismic Analysis of the Interstate 5 and Highway 14 Connector Bridge

by Robert Dowell

Dowell, Robert (2003). Seismic Analysis of the Interstate 5 and Highway 14 Connector Bridge. SMIP03 Seminar on Utilization of Strong-Motion Data, p. 87 - 106.

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Abstract

As part of the Strong-Motion Instrumentation Program in California (CSMIP), several bridge structures have been instrumented to record accelerations for the duration of each earthquake event that strikes. The subject of this paper is the investigation of the measured and calculated responses of the heavily instrumented 10-span connector bridge (53-2795F) at the 5/14 Interchange, subjected to a recorded earthquake. A detailed computer model of the bridge structure was developed, allowing comparisons to measured response quantities for many of the 42 sensor locations. In order to compare measured and computed results it was necessary to develop global axes that were common to both the bridge model and structure instrumentation.