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A set of strong motion records was obtained from the base-isolated Santa Ana River Pipeline Bridge during the magnitude 5.9 Whittier Narrows, California, earthquake of October 1, 1987. The analysis of the records show that the level of excitation was not strong enough to fully activate the base isolators. The dominant modes of the response are the translations of the abutment-bridge-pipe system in the longitudinal and transverse directions, and the bending of the steel truss between supports in the vertical direction.
Additional Publication Details
Recorded seismic response of a base-isolated steel bridge carrying a steel water pipe
Publ by ASME
New York, NY, United States
Number of Pages:
Seismic Engineering - 1989: Design, Analysis, Testing, and Qualification Methods