变轴力钢筋混凝土墩柱抗震性能研究

陈嵘; 雷俊卿

doi:10.6052/j.issn.1000-4750.2017.04.S046

变轴力钢筋混凝土墩柱抗震性能研究

陈嵘^1,2,
雷俊卿^1,

1.
北京交通大学土木建筑工程学院, 北京 100044;
2.
北京建筑大学北京高等学校工程研究中心, 北京 100044

基金项目: 国家自然科学基金项目（50878020，51178042，51478027）

详细信息

作者简介:
陈嵘(1976-),男,浙江人,讲师,博士生,主要桥梁抗震研究(E-mail:chenrong@bucea.edu.cn).

通讯作者:
雷俊卿(1957-),女,河南人,教授,博士,主要从事桥梁工程研究(E-mail:lei_jq@eyou.com).

中图分类号: U446.1
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- 文章访问数: 293
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出版历程
- 收稿日期: 2017-04-05
- 修回日期: 2017-10-30
- 刊出日期: 2018-06-29

Study on the seismic behavior of RC bridge piers under variable axial load

CHEN Rong^1,2,
LEI Jun-qing^1,

1.
School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China;
2.
Beijing Higher Institution Engineering Research Center of Civil Engineering Structure and Renewable Material, Beijing University of Civil Engineering and Architecture, Beijing 100044, China

摘要

摘要: 为研究墩柱在变轴力往复荷载下的抗震性能，制作6个试件，1个承受恒定轴力，5个承受变轴力，对比研究恒定轴力和变轴力，变轴力墩柱的不同纵筋配筋率、箍筋体积配箍率、高宽比对墩柱抗震性能的影响，试验表明轴力变化对位移、残余变形、破坏程度有较大影响。建立OpenSees纤维模型进行数值模拟，理论值与试验值符合较好。根据试验和理论分析总结规律，基于性能化设计方法给出建议。
- 钢筋混凝土桥墩 /
- 变轴力 /
- 抗震性能 /
- OpenSees /
- 性能化设计
Abstract: To study the seismic performance of RC bridge piers under variable axial force, six specimens are prepared, of which one was under constant axial load and the other five with different longitudinal reinforcement ratios, volumetric percentages of stirrups and shear span ratios, were subjected to variable axial force. The test results indicate that the variable axial force has apparent effect on the displacement, residual deformation, and the level of destruction of RC bridge piers. The fiber model was applied to simulate the piers under variable axial load and the theoretical results agree well with the experimental results. According to the performance-based seismic design, suggestions are proposed to consider varying axial load during design.
- reinforced concrete bridge pier /
- variable axial load /
- seismic performance /
- OpenSees /
- performance-based design

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参考文献(17)

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