| 铁路实体桥墩横向振动规律 |
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| 引用本文： | 李运生,阎贵平,钟铁毅,王元清.铁路实体桥墩横向振动规律[J].北京交通大学学报(自然科学版),2009,33(1). |
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| 作者姓名： | 李运生 阎贵平 钟铁毅 王元清 |
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| 作者单位： | 清华大学土木工程系,北京,100084;石家庄铁道学院土木工程分院,石家庄,050043;北京交通大学土木建筑工程学院,北京,100044;清华大学土木工程系,北京,100084 |
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| 基金项目： | 铁道部科技研究开发计划 |
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| 摘 要： | 我国铁路桥梁检定规范中,以墩项横向振幅作为桥墩横向刚度的控制指标,但计算公式中所考虑的影响因素不是很全面,不能很好地反映桥墩横向振动的规律.本文针对铁路实体墩进行了大量的统计分析,以墩顶横向振幅最敏感的综合指标为变量,从试验和理论两方面研究了铁路实体桥墩横向振动的内在规律,并将实测值和理论值与"检规"通常值进行了比较.研究表明,仅与桥墩尺寸有关的"检规"通常值未能反映梁墩体系共同振动的特性,墩顶横向振幅的限值应与梁墩体系的结构特性有关,在后续研究中应制定更合理的桥墩横向刚度检定标准.
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| 关 键 词： | 桥墩 铁路 横向振动 横向振幅 横向刚度 |
Rule of Lateral Vibration for Solid Piers of Railway Bridges |
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| LI Yunsheng,YAN Guiping,ZHONG Tieyi,WANG Yuanqing.Rule of Lateral Vibration for Solid Piers of Railway Bridges[J].JOURNAL OF BEIJING JIAOTONG UNIVERSITY,2009,33(1). |
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| Authors: | LI Yunsheng YAN Guiping ZHONG Tieyi WANG Yuanqing |
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| Institution: | 1.Department of Civil Engineering;Tsinghua University;Beijing 100084;China;2.School of Civil Engineering;Shijiazhuang Railway Institute;Shijiazhuang 050043;3.School of Civil Engineering;Beijing Jiaotong University;Beijing 100044;China |
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| Abstract: | In the inspecting code of Chinese railway bridges,the control index of lateral stiffness of piers is lateral maximum amplitude of pier top,but the influence factors which are considered in code are not comprehensive,and can not express the rule of the lateral vibration of piers exactly.In this paper,the statistic analysis of railway solid piers is performed.Based on the synthesis index,which is most sensitive to the lateral maximum amplitude of pier top,the lateral vibration rule of railway solid piers is i... |
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| Keywords: | bridge piers railway lateral vibration lateral amplitude lateral stiffness |
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