| 桥墩类型对波纹钢腹板连续刚构桥动力特性的影响 |
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| 引用本文： | 李鹏飞,刘保东,肖英楠.桥墩类型对波纹钢腹板连续刚构桥动力特性的影响[J].桥梁建设,2011(2). |
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| 作者姓名： | 李鹏飞 刘保东 肖英楠 |
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| 作者单位： | 北京交通大学土木建筑工程学院,北京,100044 |
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| 基金项目： | 西部交通建设科技项目(200831822367) |
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| 摘 要： | 为研究不同类型桥墩对波纹钢腹板连续刚构桥动力性能的影响,以某实际项目的波纹钢腹板连续刚构箱梁桥为研究对象,采用群柱式桥墩、双薄壁桥墩、空心桥墩、实心桥墩4种类型桥墩对该桥动力特性进行对比分析。利用力学公式计算各桥墩抗扭性能;利用有限元分析软件MIDAS Civil分析各桥墩前20阶振型及自振频率。分析结果表明:采用空心桥墩可有效改善波纹钢腹板连续刚构桥上部结构的抗扭性能及提高其横向抗推刚度,并且空心桥墩工程量明显小于实心桥墩,设计波纹钢腹板连续刚构箱梁桥时,空心桥墩具有较大的优势。
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| 关 键 词： | 刚构桥 连续梁桥 波纹钢腹板 桥墩 动力特性 有限元法 |
Influence of Different Pier Types on Dynamic Performance of Continuous Rigid-Frame Bridges with Corrugated Steel Webs |
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| LI Peng-fei,LIU Bao-dong,XIAO Ying-nan.Influence of Different Pier Types on Dynamic Performance of Continuous Rigid-Frame Bridges with Corrugated Steel Webs[J].Bridge Construction,2011(2). |
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| Authors: | LI Peng-fei LIU Bao-dong XIAO Ying-nan |
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| Institution: | LI Peng-fei,LIU Bao-dong,XIAO Ying-nan(School of Civil Engineering and Architecture,Beijing Jiaotong University,Beijing 100044,China) |
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| Abstract: | To investigate the influence of different pier types on the dynamic performance of continuous rigid-frame bridges with corrugated steel webs,a continuous rigid-frame box girder bridge with corrugated steel webs of an actual project was taken as the research object,the dynamic performance of the bridge provided with four types of the group column piers,double thin-wall piers,hollow piers and solid piers was compared and analyzed.The mechanical formulae were used to calculate the torsional performance of each... |
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| Keywords: | rigid-frame bridge continuous girder bridge corrugated steel web pier dynamic performance finite element method |
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