[1]秦明霞,张于晔,翟勇,等.预应力筋布置对节段拼装桥墩抗震性能的影响[J].地震工程与工程振动,2018,(04):158-163.[doi:10.13197/j.eeev.2018.04.158.qinmx.023]
 QIN Mingxia,ZHANG Yuye,ZHAI Yong,et al.Influence of prestressed strands layout on the seismic behavior of segmental bridge piers[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2018,(04):158-163.[doi:10.13197/j.eeev.2018.04.158.qinmx.023]
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预应力筋布置对节段拼装桥墩抗震性能的影响
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《地震工程与工程振动》[ISSN:/CN:]

卷:
期数:
2018年04期
页码:
158-163
栏目:
论文
出版日期:
2018-10-28

文章信息/Info

Title:
Influence of prestressed strands layout on the seismic behavior of segmental bridge piers
作者:
秦明霞1 张于晔1 翟勇1 袁万城2
1. 南京理工大学 土木工程系, 江苏 南京 210094;
2. 同济大学 土木工程防灾国家重点实验室, 上海 200092
Author(s):
QIN Mingxia1 ZHANG Yuye1 ZHAI Yong1 YUAN Wancheng2
1. Department of civil Engineering, Nanjing University of Science and Technology, Nanjing 210094,China;
2. State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji Univevsity, Shanghai 200092, China
关键词:
预应力筋节段拼装桥墩抗震能力耗能残余位移
Keywords:
prestressed strandssegmental columnsseismic capacityenergy dissipationresidual drift
分类号:
U448.35
DOI:
10.13197/j.eeev.2018.04.158.qinmx.023
摘要:
预制节段拼装桥墩具有施工工期短、对交通影响小、质量易保证等优点,但其在抗震性能方面存在不足。为获得具有较强抗震能力的节段拼装桥墩的预应力筋布置方式,分析了四种预应力筋布置方案,基于ABAQUS建立实体有限元模型,将拟静力分析结果与既有试验结果进行对比,验证分析模型的准确性,然后分析预应力筋的布置方式对节段拼装桥墩耗能能力和残余位移等抗震性能的影响。研究结果表明中心布置预应力筋的桥墩耗能能力较好,但同时残余位移也较大;分散布置预应力筋的桥墩耗能能力较弱,但残余位移较小。本文研究结论可为预制节段拼装桥墩的抗震设计提供借鉴。
Abstract:
Prefabricated segmental bridge columns (PSBC) have the advantages of speedy construction, low impact on traffic and easy quality assurance. However, there is some disadvantages in seismic capacity of PSBC. In order to get prestressed strands layout of PSBC with higher seismic capacity, researched four kinds of prestressed strands layout, developed finite element entity models by ABAQUS, compared the results of quasi-static analysis to experimental tests to validate the correction of the models, then researched the effect of prestressed strands layout on the seismic behavior of PSBC such as energy dissipation and residual drift. The results show that piers with centralized prestressed strands have better energy dissipation and bigger residual drift; while piers with decentralized prestressed strands have less energy dissipation and smaller residual drift. The results in this paper can be used in the seismic design of bridge structures with prefabricated segmental columns.

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备注/Memo

备注/Memo:
收稿日期:2018-03-17;改回日期:2018-05-17。
基金项目:国家自然科学基金项目(51508276);江苏省研究生科研与实践创新计划项目(SJCX18-0165)
作者简介:秦明霞(1994-),女,硕士研究生,主要从事桥梁抗震研究.E-mail:qin_mx@126.com
通讯作者:张于晔(1986-),男,副教授,主要从事桥梁抗震与振动研究.E-mail:zyy@njust.edu.cn
更新日期/Last Update: 1900-01-01