简支体系桥梁的震害及抗震设计对策  

Seismic Damage and Design Countermeasures of Simply-Supported System Bridges

作　　者：庄卫林[1] 余翔[1] 易志宏[1] 刘振宇[1] 

机构地区：[1]四川省交通厅公路规划勘察设计研究院,四川成都610041

出　　处：《桥梁建设》2008年第4期61-64,共4页Bridge Construction

基　　金：四川省交通建设科技项目(2006A24-584)

摘　　要：通过对近年来国内外几次大地震中简支桥梁震害的调查,对简支桥梁震害进行分类并分析原因,对比中外桥梁抗震规范,阐述中国现行桥梁抗震规范的不足,介绍采用减隔震技术的简支体系桥梁在震害中的表现,对地震区简支桥梁抗震设计提出建议。On the basis of investigation of the seismic damage to the simply-supported girder bridges damage seismic current bridges in several violent earthquake events at home and abroad in the recent years, the seismic to the bridges is categorized and its causes are analyzed. In comparison of the relevant specifications for bridges both in China and foreign countries, the insufficiencies of the specifications of China are expounded, the performance of the simply-supported girder used with the seismic mitigation and isolation techniques in the seismic damage is intro-duced and the proposals for the seismic design of the bridges in seismic regions are made as well.

关 键 词：简支梁桥 震害 抗震设计 对策 

分 类 号：U442.5[建筑科学—桥梁与隧道工程]