|Contact Information for Center for Civil Engineering Earthquake Research (CCEER)|
|Location||Harry Reid Engineering Laboratory|
|Address||1664 N. Virginia Street
Reno, NV 89557-0258
Title: Proposed Seismic Provisions and Commentary for Steel Plate Girder Superstructures
Authors: Itani, A., Grubb, M., and Monzon, E,
Date: June 2010
Sponsoring Agency: American Iron and Steel Institute
Department of Civil Engineering/258
University of Nevada, Reno
Reno, NV 89557
The seismic provisions of the current AASHTO LRFD Specifications (AASHTO, 2007) are based on the NCHRP Project 20-7/45. These provisions were updated in 2008 to include the 2006 USGS 1000-year maps and several revisions to keep the specifications current with the recent advances in the seismic analysis and design. However, none of these changes reflected the new information that was gained in the seismic analysis and design of steel plate girder superstructures. In an effort, to bridge this gap in the specifications, the American Iron and Steel Institute commissioned this report to propose updates for the seismic design of steel plate girder superstructures to AASHTO LRFD Specifications.
The objectives of this study are to:
To achieve these objectives, Chapter 1 of this report discusses related research to the seismic behavior and design of steel plate girder bridges. Chapter 2 presents the proposed language and commentary for the seismic design of steel plate girder bridges. Chapter 3 presents detailed seismic analysis and design examples for a single span and a two span continuous steel plate girder bridge with a single column bent and a dropped cap. Appendix 1 presents a summary of all existing seismic specifications that are related to steel plate girder bridges.