[1]杨勇,张锦涛,李亚宁,等.新型三向预应力钢筋混凝土桥墩抗震性能试验研究[J].西安建筑科技大学学报(自然科学版),2017,49(06):804-811.[doi:10.15986/j.1006-7930.2017.06.006]
　YANG Yong,ZHANG Jintao,LI Yaning,et al.Experimental study on seismic performance of the three-direction prestressed reinforced concrete bridge piers[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2017,49(06):804-811.[doi:10.15986/j.1006-7930.2017.06.006]
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新型三向预应力钢筋混凝土桥墩抗震性能试验研究()
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西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
49
期数:
2017年06期
页码:
804-811
栏目:
出版日期:
2017-12-31

文章信息/Info

Title:
Experimental study on seismic performance of the three-direction prestressed reinforced concrete bridge piers
文章编号:
1006-7930(2017)06-0804-08
作者:
杨勇1; 张锦涛1; 2; 李亚宁1; 李辉1; 叶俊1; 马新堡1
（1.西安建筑科技大学 土木工程学院，陕西 西安，710055；2.西安体育中心控股有限公司，陕西 西安，710026）
Author(s):
YANG Yong1;  ZHANG Jintao1; 2;  LI Yaning1;  LI Hui1;  YE Jun1;  MA Xinbao1
(1.School of Civil Engineering, Xi′an Univ. of Arch. & Tech., Xi′an, 710055, China; 2.Xi′an Sports Center Holdings LTD., Xi′an, 710026, China)
关键词:
预应力钢筋混凝土; 桥墩; 三向预应力; 抗震性能; 自复位结构; 试验研究
Keywords:
prestressed reinforced concrete;  bridge pier;  three-direction prestressed concrete;  seismic performance;  self-centering structures;  experimental study
分类号:
TU378.3
DOI:
10.15986/j.1006-7930.2017.06.006
文献标志码:
A
摘要:
为提高钢筋混凝土桥墩的自复位性能和抗震性能，先对钢筋混凝土桥墩施加竖向预应力，后采用预应力钢带对桥墩施加横向双向预应力，形成三向预应力钢筋混凝土桥墩形式.结合4个三向预应力钢筋混凝土桥墩试件和2个普通钢筋混凝土桥墩对比试件的低周反复加载拟静力试验，对三向预应力钢筋混凝土桥墩受力机理、自复位性能和抗震性能开展了详细研究，并着重分析了试件的裂缝发展情况、破坏形态、滞回曲线、骨架曲线、耗能能力、延性和自复位能力.研究结果表明，所提出的新型三向预应力钢筋混凝土桥墩相对普通钢筋混凝土桥墩，是自复位性能得到明显改善和提高.
Abstract:
To improve the self-centering ability and seismic performance of reinforced concrete bridge piers, a new kind of three-direction prestressed reinforced concrete bridge pier was created and introduced, in which vertical prestressed steel rode and horizontal two-direction prestressed steel strips were both used to introduce three prestressed stress in the piers. Based on experimental results of four specimens of this new kind of three-direction prestressed reinforced concrete pier specimens and two control common reinforced concrete specimens without any prestressing, the self-centering performance, mechanical performance and seismic performance of the three-direction prestressed reinforced concrete pier were fully studied, which means the development of cracks, failure patterns, hysteretic curves, skeleton curves, energy dissipation, ductility and self-centering ability were mainly analyzed. According to the comparing analysis with that of two reinforced concrete bridge pier control specimens, it was found that the new three-direction prestressed reinforced concrete bridge piers′ seismic performance, especially self-centering ability, was obviously improved and made better.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2016-12-09 修改稿日期:2017-11-03 基金项目:国家自然科学基金项目(51578443)；国家重点研发计划(2016YFC0701400)；陕西省科学研究计划项目(2011KJXX42)；西安建筑科技大学创新研究团队项目 第一作者：杨勇(1976-)，男，博士，教授，博导，主要从事钢筋混凝土组合结构和钢筋混凝土方面的研究教学工作研究. E-mail:Yyhhp2004@163.com 通讯作者：张锦涛(1992-)，男，硕士，从事部分预制装配式型钢混凝土柱研究. E-mail: zjt52810@163.com
更新日期/Last Update: 2018-02-10