Seismic Analysis of Meloland Road Overcrossing Using Multiplatform Simulation Software Including SSI
Publication: Journal of Structural Engineering
Volume 134, Issue 4
Abstract
A multiplatform simulation of a highway overcrossing bridge is introduced where the embankments, abutments, and pile groups are modeled in a powerful finite-element (FE) package with nonlinear soil material model while the bridge is modeled in another FE package that excels in fiber-based frame analysis. The Meloland Road Overcrossing Bridge, which is heavily instrumented, is selected as a reference analysis model due to the existence of measured data. The components as well as the integrated system are verified through comparison with previous studies and measured data. The stiffness of abutments and pile foundations are evaluated by three-dimensional finite-element analysis and compared with those from previous investigations. The analytical models of abutments and foundations are combined with the structural model using the multiplatform analysis framework, UI-SimCor. The dynamic properties of the model for multiplatform analysis are compared with those evaluated from system identification techniques using recorded ground motion. Finally, response history analyses are conducted with recorded free-field ground motion. The analysis results are in very good agreement with measured response showing the promising potential of multiplatform dynamic simulation.
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Acknowledgments
This study is funded by the EE-3 Project “Advanced Simulation Tools” at the Mid-America Earthquake (MAE) Center. The MAE Center is an Engineering Research Center funded by the National Science Foundation under cooperative agreement reference Grant No. UNSPECIFIEDEEC 97-01785. Development of early versions of the multiplatform simulation software was funded by the NEESgrid project, under the direction of B. F. Spencer. The writers are most grateful to the following individuals for their indicated contributions: Professor Ahmed Elgamal and Dr. Zhaohui Yang (OpenSees soil modeling), Professor Jame H. Long (Pile and foundation modeling), and Narutoshi Nakata and Juan Carrion (system identification).
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 134 • Issue 4 • April 2008
Pages: 651 - 660
Copyright
© 2008 ASCE.
History
Received: Oct 16, 2006
Accepted: Sep 24, 2007
Published online: Apr 1, 2008
Published in print: Apr 2008
Notes
Note. Associate Editor: Panos Tsopelas
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