[1]陈彦江,郝朝伟,李勇.系梁设置对双肢薄壁刚构桥地震响应影响分析[J].自然灾害学报,2015,(04):063-70.[doi:10.13577/j.jnd.2015.0408]
 CHEN Yanjiang,HAO Chaowei,LI Yong.Effect of tie beam on seismic response of rigid frame bridge with double-leg thin-walled piers[J].,2015,(04):063-70.[doi:10.13577/j.jnd.2015.0408]
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系梁设置对双肢薄壁刚构桥地震响应影响分析
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《自然灾害学报》[ISSN:/CN:23-1324/X]

卷:
期数:
2015年04期
页码:
063-70
栏目:
出版日期:
2015-08-31

文章信息/Info

Title:
Effect of tie beam on seismic response of rigid frame bridge with double-leg thin-walled piers
作者:
陈彦江1 郝朝伟1 李勇2
1. 北京工业大学 工程抗震与结构诊治北京市重点实验室, 北京 100124;
2. 清华大学 土木工程系, 北京 100083
Author(s):
CHEN Yanjiang1 HAO Chaowei1 LI Yong2
1. Beijing Laboratory of Earthquake Engineering and Structural. Beijing University of Technology, Beijing 100124, China;
2. Tsinghua University. Department of Civil Engineering, Beijing 100083, China
关键词:
桥梁工程地震响应增量动力分析系梁双肢薄壁墩
Keywords:
bridge engineeringseismic responseincremental dynamic analysis (IDA)tie beamdouble-leg thin-walled pier
分类号:
U442.5+5;U448.23
DOI:
10.13577/j.jnd.2015.0408
文献标志码:
A
摘要:
以一座典型双肢薄壁刚构桥为工程背景,采用增量动力分析(incremental dynamic analysis, IDA )方法,考虑行波效应,分析了系梁道数、系梁刚度等参数对桥梁远场地震响应的影响。结果表明,与系梁位置和刚度相比,地震响应受系梁道数影响较大;设置1道系梁可以明显降低支座在地震中的响应;设置2道以上系梁时,墩内、外肢地震响应差别显著,不利于发挥双肢墩材料性能。设置较多的系梁或者系梁位置不合理,易导致桥墩局部振动。对于跨度较大的髙墩刚构桥,当因其它因素需要设置较多系梁时,建议对行波效应进行专门的抗震效应研究。
Abstract:
Based on a typical continuous rigid frame bridge with double-leg thin-walled high piers in mountain areas, the influence of tie beam number and its stiffness on the far-field seismic response was reseached using incremental dynamic analysis(IDA) method, considering traveling wave effect. The results show that the number of tie beams has a remarkable effect on the seismic response of rigid bridge compared with the tie beam position and stiffness. What is more, the support response of the rigid bridges in earthquake is lower in case of one tie beam and for the rigid frame bridge with more than two tie beams, seismic responses of the internal and external limb will be strikingly different which is unfavourable for giving full play to both limbs thin-walled piers performance. The bridge with a little more tie beams or their unreasonable position, is prone to local vibration. For the larger span bridge of high piers with many tie beams because of other factors, it is suggested to do special seismic research when considering traveling wave effect.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2014-08-10;改回日期:2014-11-09。
基金项目:国家自然科学基金项目(51378037,90715032);中国博士后科学基金项目(2013M540957)
作者简介:陈彦江(1963-),男,博士,博士生导师,主要从事桥梁抗震及全寿命健康监测研究.E-mail:cyjrlx@sina.com.cn
通讯作者:郝朝伟,男,硕士研究生.E-mail:budianerwen@sina.com
更新日期/Last Update: 2015-10-27