[1]李 强,牛荻涛,张成中,等.锈蚀箍筋约束混凝土柱低周往复试验研究[J].西安建筑科技大学学报(自然科学版),2017,49(05):671-0679.[doi:10.15986/j.1006-7930.2017.05.009]
　LI Qiang,NIU Ditao,ZHANG Chengzhong,et al.LI Qiang1 , NIU Ditao2 , ZHANG Chengzhong2 , YANG Guang1[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2017,49(05):671-0679.[doi:10.15986/j.1006-7930.2017.05.009]
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锈蚀箍筋约束混凝土柱低周往复试验研究()
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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05期
页码:
671-0679
栏目:
出版日期:
2017-10-28

文章信息/Info

Title:
LI Qiang1 , NIU Ditao2 , ZHANG Chengzhong2 , YANG Guang1
文章编号:
1006-7930(2017)05-0671-09
作者:
李 强1 ;  牛荻涛2 ;  张成中2 ;  杨 光1
(1.西安科技大学 建筑与土木工程学院,陕西 西安 710054;2.西安建筑科技大学 土木工程学院,陕西 西安 710055)
Author(s):
LI Qiang1 ;  NIU Ditao2 ;  ZHANG Chengzhong2 ;  YANG Guang1
(1. Department of Civil Engineering and Architecture, Xian University of Science and Technology Xi an 710054China; 2. Department of Civil Engineering, Xi’ an Univ. of Arch. & Tech. Xi an 710055China)
关键词:
锈蚀箍筋; 约束混凝土柱; 低周反复荷载; 关键参数; 抗震性能
Keywords:
corroded stirrup;  confined concrete column;  low reversed cyclic loading;  the key parameter;  seismic performance
分类号:
TU375.3
DOI:
10.15986/j.1006-7930.2017.05.009
文献标志码:
A
摘要:
为了解锈蚀箍筋约束混凝土柱的抗震性能，通过加速锈蚀试验得到8根锈蚀混凝土柱，研究箍筋锈蚀混凝土柱的受力特点和破坏机制，对比分析锈蚀箍筋约束混凝土柱的承载力、延性、滞回特性、刚度退化、强度退化和耗能等抗震性能。结果表明：箍筋锈蚀混凝土约束作用降低，混凝土柱抗震性能退化；随着箍筋锈蚀量增大，柱破坏时的极限位移减小，滞回曲线捏拢现象逐渐明显，强度降低程度和刚度衰减程度均增大，延性和耗能能力降低，相同控制位移下的累计耗能量增大。
Abstract:
To understand the seismic behavior of concrete column confined by the corroded stirrups, the low reversed cyclic loading tests have been carried out for eight pillar of corroded reinforced concrete?columns, which studied the mechanical characteristics and failure mechanism of concrete column confined by the corroded stirrups, and the influence on seismic performance indicators such as bearing capacity, ductility, hysteretic characteristics, stiffness degradation and strength degradation and energy dissipation were analyzed comparatively by the parameters such as stirrup diameter, stirrup spacing changes. The experimental results showed that the restraint of concrete provided by corroded stirrups is reduced, which leads to seismic performance degradation of concrete column, and with stirrups’ corrosion quantity increases,? the failure limit displacement of column decreases, and the pinch phenomenon of hysteresis curve is gradually obvious, and the attenuation degree of strength and stiffness is increased, and the ductility and energy dissipation capacity is reduced, and the accumulated energy is increased under the same control displacement meanwhile

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备注/Memo

备注/Memo:
收稿日期:2016-10-31
修改稿日期:2017-08-22
基金项目:国家青年科学基金项目资助（51408483）；陕西省自然科学基础研究计划面上项目（2017JM5045）
第一作者:李强（1980-），男，讲师，博士，主要从事混凝土结构耐久性研究及教学工作. E-mail：47961419@qq.com
更新日期/Last Update: 2017-11-09