[1]宋坤,李振宝.不同加载角度与轴压比下RC短柱抗震性能试验研究[J].世界地震工程,2015,(01):069-75.
 SONG Kun,LI Zhenbao.Experimental study on seismic behavior of RC short columns under different loading angle and axial compression ratio[J].,2015,(01):069-75.
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不同加载角度与轴压比下RC短柱抗震性能试验研究
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《世界地震工程》[ISSN:/CN:]

卷:
期数:
2015年01期
页码:
069-75
栏目:
出版日期:
2015-03-31

文章信息/Info

Title:
Experimental study on seismic behavior of RC short columns under different loading angle and axial compression ratio
作者:
宋坤12 李振宝1
1. 北京工业大学 城市与工程安全减灾教育部重点实验室, 北京 100124;
2. 燕山大学 建筑工程与力学学院, 河北 秦皇岛 066004
Author(s):
SONG Kun12 LI Zhenbao1
1. The Key Laboratory of Urban Security and Disaster Engineering, Ministry of Education, Beijing University of Technology, Beijing 100124, China;
2. College of Civil Engineering and Mechanics, Yanshan University, Qinhuangdao 066004, China
关键词:
加载角度钢筋混凝土方形短柱低周往复加载试验轴压比抗震性能
Keywords:
loading anglereinforced concrete square short columnslow cycle reciprocal loading testaxial compressive ratioseismic behavior
分类号:
TU375.3;P315.9
摘要:
进行了加载角度为0°、22.5°及45°的钢筋混凝土方形短柱试件在轴压比分别为0.2及0.6下的低周往复加载试验,从破坏形态、承载力、延性及耗能能力等方面对钢筋混凝土方形短柱的抗震性能进行了研究.结果表明:增大轴压比能有效提高RC方形短柱的承载能力、耗能能力和减缓试件的后期强度退化,但同时会加速其刚度退化;加载角度对试件的承载力及刚度退化基本上没有影响,但延性、耗能能力及强度退化率会随加载角度的增加而增大.
Abstract:
The low cycle reversed loading tests on reinforced concrete square short columns with different loading angles of 0°, 22. 5°, 45° and different axial compressive ratios of 0. 2 and 0. 6 were conducted. The seismic behaviors about failure mode, bearing capacity, ductility and energy dissipation capacity were analyzed by the test results. It turned out that increasing axial compressive ratio will enhance the bearing capacity, energy dissipation capacity, slow down the degradation of strength in later stage, but accelerate the degradation of rigidity. The load angle do not change the bearing capacity and the degradation of rigidity, but the ductility, energy dissipation capacity and degradation of strength will increase with the increasing of the load angle.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2014-8-13;改回日期:2014-11-21。
基金项目:国家自然科学基金项目(51078011);北京市自然科学基金B类项目:北京市教委科技计划重点项目(KZ201110005009);河北省科学技术研究与发展计划项目(10276919)
作者简介:宋坤(1980-),女,讲师,博士研究生,主要从事结构与工程抗震研究.E-mail:songkun_2002@163.com
通讯作者:李振宝,男,教授,博士,主要从事结构与工程抗震研究.E-mail:lizb@bjut.edu.cn
更新日期/Last Update: 1900-01-01