Seismic Performance of Circular Reinforced Concrete Bridge Columns(H)：
Evaluation of Experimental Results

doi:10.3969/j.issn.1674-0696.2011.06.02

Journal of Chongqing Jiaotong University(Natural Science) ›› 2011, Vol. 30 ›› Issue (6): 1270-1274.DOI: 10.3969/j.issn.1674-0696.2011.06.02

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Seismic Performance of Circular Reinforced Concrete Bridge Columns(H)： Evaluation of Experimental Results

LI Gui-qian， ZHENG Gang ，WANG Jun

1.Communications Planning，Survey& Designing Institute of Guangxi Zhuang Autonomous Region，Nanning 530011， Guangxi，China；2.State Key Laboratory of Bridge Structural Dynamics，Chongqing Communications Research ＆ Design Institute. Chongqing 400067，China；3.School of Civil Engineering＆Architecture，Chongqing Jiaotong University，Chongqing 400074，China

Received:2011-05-31 Revised:2011-06-13 Online:2011-12-15 Published:2015-01-22

圆形钢筋混凝土桥墩抗震性能(Ⅱ)：试验结果评估

李贵乾^1,2,郑罡²,王军³

1.广西壮族自治区交通规划勘察设计研究院，广西南宁530011； 2.招商局重庆交通科研设计院有限公司桥梁结构动力学国家重点实验室，重庆400067； 3.重庆交通大学土木建筑学院，重庆400074

作者简介:李贵乾(1984—)，男，广西桂林人，硕士，主要从事桥梁抗震设计研究。E-mail：lgqmancan@163.com。
基金资助:
交通运输部西部交通建设科技项目(200731882233)；重庆市杰出青年科技基金资助项目(CSTC，2008BA6039)

Abstract

Abstract: According to the failure phenomenon and test data in the orthogonal quasi-static test，the characteristics of deform- ation and flexural strength of circular reinforced concrete bridge columns are studied.And the displacement ductility.effec- tive stiffness，stiffness degradation and capacity of accumulative energy dissipation to ultimate displacement state of bridge columns subjected to low-cyclic loading have been evaluated，so as to investigate the influence of factors such as shear-span ratio，axial-load ratio，and longitudinal reinforcemem ratio and spiral reinforcement ratio on ductility perform ance of bridge columns.Finally，some useful conclusions are found out for the ductile anti-seismic design of highway bridges.

Key words: reinforced concrete bridge columns, pseudo-static orthogonal test, ductility capacity, seismic design

摘要： 根据桥墩拟静力正交试验现象及数据结果,研究了圆形钢筋混凝土桥墩的变形特征及弯曲强度特性;并对低周反复荷载作用下桥墩的位移延性、等效刚度和刚度退化性能以及极限位移状态下累积耗能能力进行了评估,综合考察了剪跨比、轴压比、纵筋率、配箍率等因素对桥墩延性性能的影响。可为桥梁的延性抗震设计提供参考。

关键词: 钢筋混凝土桥墩, 拟静力正交试验, 延性性能, 抗震设计

CLC Number:

U445.7⁺5

LI Gui-qian， ZHENG Gang ，WANG Jun. Seismic Performance of Circular Reinforced Concrete Bridge Columns(H)： Evaluation of Experimental Results[J]. Journal of Chongqing Jiaotong University(Natural Science), 2011, 30(6): 1270-1274.

李贵乾，郑罡，王军. 圆形钢筋混凝土桥墩抗震性能(Ⅱ)：试验结果评估[J]. 重庆交通大学学报（自然科学版）, 2011, 30(6): 1270-1274.

References

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LI Gui-qian,ZHENG Gang,WANG Jun.Experimental evaluationof the seismic performance of circular reinforced concrete bridge col-umns(Ⅰ):Design and result of the experiment[J].Journal ofChongqing Jiaotong University:Natural Science,2011,30(5):889-894,1000.
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[9]司炳君,李宏男,王东升,等.基于位移设计的钢筋混凝土桥墩抗震性能试验研究(I):拟静力试验[J].地震工程与工程振动,2008,28(1):123-129.
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Seismic Performance of Circular Reinforced Concrete Bridge Columns(H)： Evaluation of Experimental Results

圆形钢筋混凝土桥墩抗震性能(Ⅱ)：试验结果评估

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