by Yalin Arici and Khalid Mosalam
Arici, Yalin, and Khalid Mosalam (2000). System Identification and Modeling of Bridge Systems for Assessing Current Design Procedures. SMIP2000
Seminar on Utilization of Strong-Motion Data, p. 77 - 96.
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The recorded motions by California Strong Motion Instrumentation Program (CSMIP) for seven
different bridge systems are analyzed using parametric and non-parametric system identification
methods. The results of these analyses include identification of modal frequencies, mode shapes
and damping ratios. An excellent fit of the recorded motion in time domain is obtained using
parametric methods. Utilizing the results from the identification study, the paper evaluates
commonly used bridge design provisions in California.