中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2010, Vol. 29 ›› Issue (3): 358-362.

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汶川地震近断层附近桥梁震害浅析

雷涛,李碧雄,曹鹏杰,顺远坤   

  1. 四川大学土木工程系, 四川 成都 610065
  • 收稿日期:2010-01-14 出版日期:2010-06-15 发布日期:2015-01-22
  • 作者简介:雷 涛(1985—), 男, 重庆璧山人, 硕士研究生, 主要从事结构工程抗震研究。E-mail:sculeitao@126.com。
  • 基金资助:
    国家自然科学基金重点项目(50639100);国家自然科学基金重大国际合作研究项目(50620130440);科技部国际科技合作项目 (2007DFB60100)

Analysis on Damage of Near-Faultage Bridges in Wenchuan Earthquake

LEI Tao,LI Bi-xiong,CAO Peng-jie,SHUN Yuan-kun   

  1. Department of Civil Engineering,Sichuan University,Chengdu 610065,Sichuan,China
  • Received:2010-01-14 Online:2010-06-15 Published:2015-01-22

摘要: “5.12”汶川地震给交通生命线造成了严重破坏,其中处于断层附近的几座桥梁震害严重甚至垮塌,给灾后救 援和重建带来巨大影响。结合近断层的场地特征,详细分析了其附近几座桥梁的震害,并为今后的桥梁设计提出 以下建议:做好桥址选择工作,尽量避免发震断裂地段;选择合理抗震结构体系,减小双向地震作用;充分考虑竖向 地震作用对桥梁结构影响;提高构件延性设计,防止墩柱脆性破坏;合理设计支座和加强挡块连接,以有效防止落 梁震害。

关键词: 汶川地震, 近场, 桥梁, 震害

Abstract: Transport system has been severely damaged during the M8.0 Wenchuan earthquake; several bridges near the faultage are damaged severely and even collapsed, which lays great impact on the rescue and reconstruction after the earthquake. With the site characteristics of near-faultage, the damage of several near-faultage bridges is analyzed h detail.At the same time, some reasonable suggestions for future seismic design of bridges are presented as follow: firstly,choosing a good site far from the faultage is very important for the bridge construction; secondly the reasonable seismic structure of bridge can reduce the bi-dirctional seismic action;meanwhile, the effect of vertical seismic action on bridges should be fully considered; thirdly, bridges should be designed in ductility in order to avoid the fragile destruction on piers; finally,designing piers reasonably and reinforcing the connections of bridge blocks can effectively prevent girder from falling in the earthquake.

Key words: Wenchuan Earthquake, near-faultage, bridge, damage of earthquake

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