汶川大地震简支梁桥落梁震害与设计对策

王东升; 王吉英; 孙治国; 李晓莉

doi:10.13409/j.cnki.jdpme.2011.05.019

您当前的位置：

首页 >

文章列表页 >

汶川大地震简支梁桥落梁震害与设计对策

汶川地震考察与研究 | 更新时间：2025-12-11

- 汶川大地震简支梁桥落梁震害与设计对策
- Unseating Damage to Simply Supported Bridges during Wenchuan Earthquake and Design Countermeasures
- 防灾减灾工程学报 2011年31卷第5期页码：595-602
- 作者机构：
- 作者简介：
- 基金信息：
  
  辽宁省交通厅科技课题（090604）资助
- DOI：10.13409/j.cnki.jdpme.2011.05.019
  中图分类号： 442.55
- 纸质出版：2011
- 稿件说明：
移动端阅览
[1]王东升,王吉英,孙治国,李晓莉.汶川大地震简支梁桥落梁震害与设计对策[J].防灾减灾工程学报,2011,31(05):595-602.

王东升, 王吉英, 孙治国, et al. Unseating Damage to Simply Supported Bridges during Wenchuan Earthquake and Design Countermeasures[J]. 2011, 31(5): 595-602.
[1]王东升,王吉英,孙治国,李晓莉.汶川大地震简支梁桥落梁震害与设计对策[J].防灾减灾工程学报,2011,31(05):595-602. DOI： 10.13409/j.cnki.jdpme.2011.05.019.

王东升, 王吉英, 孙治国, et al. Unseating Damage to Simply Supported Bridges during Wenchuan Earthquake and Design Countermeasures[J]. 2011, 31(5): 595-602. DOI： 10.13409/j.cnki.jdpme.2011.05.019.

摘要

总结了5.12汶川大地震中简支梁桥落梁震害及主要影响因素

发现除地震山体滑坡等地质灾害外

断层地表破裂、近断层地震动效应、桥台胸墙冲切破坏、防落梁构造措施单一及桥梁体型复杂等因素都是引起简支梁桥落梁震害的重要原因。提出了简支梁桥防落梁设计的基本理念及相关技术方案要点为允许墩梁间发生滑移

以降低桥墩承受的地震惯性力

以及盖梁提供允许的最大滑移长度及支座支承宽度

再辅助挡块或拉索限位器等共同防止落梁发生。最后结合现行规范

以拉索限位器为例给出了简支梁桥防落梁设计方法。

Abstract

The unseating damage to simply supported bridges and their main influencing factors during the Wenchuan earthquake are summarized.It is found that excepting the earthquake-induced landslide hazard

the earthquake surface rupture

near fault ground motion

punching shear failure of the abutment breast wall

the invalidity of the devices for preventing unseating damage to the bridges and the complex bridge types are main influencing factors leading to the unseating damage to the simply supported bridges.Basic seismic design idea and method to prevent unseating damage to simply supported bridges are presented in this paper

which include: （1） sliding between bridge girders and cap beams is allowed to reduce the seismic actions concentrated on the bridge piers;（2） cap beams with enough seating length are recommended for sliding between girder and pier to avoid unseating damage;（3） shear keys or cable restrainers should be used as added measures to prevent unseating damage.The design method for simply supported bridges with cable restrainers is illustrated in detail by using current seismic design code for bridges.

关键词

Keywords

references

汶川地震对我国地震区划图与桥梁抗震设计的启示 [J]. 王克海,李茜,韦韩. 工程力学 . 2010(06)

汶川大地震公路桥梁震害分析及对策 [J]. 庄卫林,刘振宇,蒋劲松. 岩石力学与工程学报 . 2009(07)

汶川大地震公路桥梁震害初步调查 [J]. 王东升,郭迅,孙治国,孟庆利,于德海,李晓莉. 地震工程与工程振动 . 2009(03)

“5·12”汶川地震典型桥梁震害分析 [J]. 刘健新,赵国辉. 建筑科学与工程学报 . 2009(02)

西安机场高速公路桥梁减震系统设计 [J]. 赵国辉,刘健新,陈长海,李震. 桥梁建设 . 2009(02)

汶川地震桥梁震害的特征 [J]. 李鸿晶,陆鸣,温增平,罗韧. 南京工业大学学报(自然科学版) . 2009(01)

5．12汶川地震中山区公路桥梁震害及启示 [J]. 杜修力,韩强,李忠献,李立云,陈少峰,赵建锋. 北京工业大学学报 . 2008(12)

一种新型的钢绞线拉索式落梁防止装置 [J]. 朱万旭,欧进萍,黄颖,严军,杨帆. 预应力技术 . 2008(05)

Parametric study on performance of bridge retrofitted by unseating prevention devices [J]. 刘光晏,张国镇. Earthquake Engineering and Engineering Vibration . 2006(01)

考虑邻梁碰撞的多跨长简支梁桥落梁震害分析 [J]. 王东升,杨海红,王国新. 中国公路学报 . 2005(03)

桥梁限位器抗震设计方法研究 [J]. 戴福洪,翟桐. 地震工程与工程振动 . 2002(02)

公路桥梁减、抗震防落梁系统研究 [D]. 朱文正. 长安大学 2004

Reconnaissance Report on Damage of Bridges in 2008 Wenchuan, China, Earthquake [J] . Kazuhiko Kawashima,Yoshikazu Takahashi,Hanbin Ge,Zhishen Wu,Jiandong Zhang. Journal of Earthquake Engineering . 2009 (7)

Lessons in bridge damage learned from the Wenchuan earthquake [J] . W. Phillip Yen,Genda Chen,Mark Yashinski,Youssef Hashash,Curtis Holub,Kehai Wang,Xiaodong Guo. Earthquake Engineering and Engineering Vibration . 2009 (2)

Seismic Effect on Highway Bridges in Chi Chi Earthquake [J] . Yao T. Hsu,Chung C. Fu. Journal of Performance of Constructed Facilities . 2004 (1)

Effect of near-fault earthquake on bridges: lessons learned from Chi-Chi earthquake [J] . Chin-Hsiung Loh,Wen-I Liao,Juin-Fu Chai. Earthquake Engineering and Engineering Vibration . 2002 (1)

浏览量

586

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

震源参数对合成时程持时的影响分析

汶川地震黄土地区远场地震动特征分析

地震断裂带深孔岩芯非弹性应变恢复法三维地应力测试

防灾减灾工程学报2015年第35卷总目次

汶川地震震裂山体裂缝变形特征与动力机制研究