原文传递
Seismic Vulnerability Assessment and Retrofit Recommendations for State Highway Bridges: Case Studies.
| 题名： | Seismic Vulnerability Assessment and Retrofit Recommendations for State Highway Bridges: Case Studies. |
| 作者： | A. Shafieezadeh; W. Hu; E. Erduran; K. L. Ryan; |
| 关键词： | bridges,state highway bridges,seismic vulnerability assessment,case studies;demand assessment, capacity assessment, retrofit techniques; |
| 摘要： | In this report, representative case study bridges are evaluated in detail using the guidelines. The case study evaluations include the following for each bridge: (1) selection and presentation of analysis method, (2) development of numerical model in LARSA 4D and/or additional programs as needed, (3) evaluation of the seismic response of the unretrofitted bridge, (4) design of a possible retrofit scheme. The bridges evaluated include a four-span simply supported prestressed concrete girder bridge, a four-span continuous concrete T-beam, and an eight-span curved steel girder bridge with in-span pin and hanger joints. A variety of different evaluation methods are presented including linear response spectrum analysis for demand assessment, capacity spectrum method and pushover analysis for capacity assessment, and nonlinear response history analysis. A variety of retrofit techniques are presented including column jacketing, cable restrainers, selectively closing pin and hanger joints, and seismic isolation. The varied examples and techniques presented in this report are meant to be representative of assessment and applicable retrofit approaches for many of the bridges in the state inventory that may be seismically deficient. / Supplementary Notes: Sponsored by Utah Dept. of Transportation, Salt Lake City. Research and Development Unit. / Availability Note: Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5301 Shawnee Road, Alexandria, VA, 22312, USA. |
| 报告类型： | 科技报告 |
相关文献
- Seismic Vunerability Evaluation and Retrofit Design of Las Vegas Downtown Viaduct.
- Impact Assessment of Selected MCEER Highway Project Research on the Seismic Design of Highway Structures
- Seismic Performance of Seat-Type Abutment Highway Bridges in Illinois.
- Seismic Vulnerability of Timber Bridges and Timber Substructures.
- Impact Assessment of Selected MCEER Highway Project Research on the Seismic Design of Highway Structures; Technical rept
- Seismic Retrofit Benefit Considering Statewide Transportation Assessment.
检索历史
应用推荐
