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Seismic Behavior of Steel Girder Bridge Superstructures |
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| Authors: | Ahmad M Itani Michel Bruneau Lyle Carden Ian G Buckle |
| Affiliation: | 1Associate Professor of Civil Engineering, Univ. of Nevada, Reno, NV?89557. 2Professor and Deputy Director of Multidisciplinary Center for Earthquake Engineering Research, Dept. of Civil, Structural Engineering, 130 Ketter Hall, Univ. at Buffalo, Buffalo, NY?14260. 3Graduate Student Research Assistant, Dept. of Civil Engineering, Univ. of Nevada, Reno, NV?89557. 4Professor and Director of Center for Civil Engineering Earthquake Research, Dept. of Civil Engineering, Univ. of Nevada, Reno, NV?89509. |
| Abstract: | Recent earthquakes exposed the vulnerabilities of steel plate girder bridges when subjected to ground shaking. This paper discusses the behavior of steel plate girder bridges during recent earthquakes such as Petrolia, Northridge, and Kobe. The paper also discusses the recent experimental and analytical investigations that were conducted on steel plate girder bridges and their components. Results of these investigations showed the importance of shear connectors in distributing and transferring the lateral forces to the end and intermediate cross frames. Also, these investigations showed the potential of using end cross frames as ductile elements that can be used to dissipate the earthquake input energy. The paper also gives an update on specifications and guidelines for the seismic design of steel plate girder bridges in the United States. |
| Keywords: | Seismic response Bridges steel Bridges girder Superstructures Earthquakes Steel plates |