[1]董春敏,孟海平,孙佳佳.矩形截面框架柱双向受剪承载力简化算法[J].世界地震工程,2011,(02):179-184.
 DONG Chunmin,MENG Haiping,SUN Jiajia.Simplified method for bilateral shear strength of rectangular frame columns[J].,2011,(02):179-184.
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矩形截面框架柱双向受剪承载力简化算法
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《世界地震工程》[ISSN:/CN:]

卷:
期数:
2011年02期
页码:
179-184
栏目:
出版日期:
2011-04-09

文章信息/Info

Title:
Simplified method for bilateral shear strength of rectangular frame columns
作者:
董春敏 孟海平 孙佳佳
河南理工大学土木学院, 河南 焦作 454000
Author(s):
DONG Chunmin MENG Haiping SUN Jiajia
School of Civil Engineering, Henan Polytechnic University, Jiaozuo 454000, China
关键词:
框架柱双向受剪承载力三折线法地震折减系数
Keywords:
frame columnbilateral shear strengththree-polygonal methodearthquakereduced coefficient
分类号:
TU375.2;P315.8
摘要:
通过5根无箍筋和7根有箍筋矩形截面钢筋混凝土框架柱试验,研究加载角度不同时,低周往复斜向水平荷载作用下,矩形截面框架柱双向受剪的破坏机理和计算方法。结果表明,可以近似用椭圆方程描述无箍筋矩形截面框架柱双向受剪承载力的相关关系,并且框架柱截面长边和短边方向的箍筋应力彼此独立。根据上述分析,引入混凝土抗剪强度折减系数,计算低周往复水平荷载作用下矩形截面框架柱双向受剪承载力。试验值与计算结果的对比表明该公式可行,且具有95%以上的可靠性。同时,考虑受剪承载力抗震调整系数,给出了考虑地震作用时矩形截面框架柱双向受剪承载力建议的简化算法公式。
Abstract:
To investigate the mechanism and calculation method for bilateral shear strength of rectangular frame columns under low-cyclic oblique horizontal loads,a total of 5 rectangular frame columns without stirrup and 7 rectangular frame columns with stirrup were teste.The results indicate that the relationship between X and Y axes for shear strength of the rectangular frame columns without stirrup could be approximately described with ellipse,and stirrups stress on X and Y axes were independent.According to the above conclusion,a reduced coefficient for shear strength of concrete is introduced to predict the bilateral shear strength of the rectangular frame columns subjected to low-cyclic oblique horizontal load.The comparison between experiment results and calculations has shown that the formula is feasible and has the reliability of above 95%.Finally,a formula suggested to calculate the bilateral shear strength of the rectangular frame columns under earthquake is presented,in which γRE is considered.

参考文献/References:

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相似文献/References:

[1]董春敏,周淼.斜向往复水平荷载作用下矩形截面框架柱抗震性能[J].世界地震工程,2012,(03):065.
 DONG Chunmin,ZHOU Miao.Aseismatic performance of rectangular frame column subjected to oblique reciprocating horizontal load[J].,2012,(02):065.
[2]管品武,陈萌,李险峰,等.地震区混凝土框架柱塑性铰区剪切抗力延性设计试验研究[J].世界地震工程,2005,(01):150.
 GUAN Pin-wu,CHEN Meng,LI Xian-feng,et al.Research on seismic shear capacity of reinforced concrete frame columns in yield hinge regions under various ductility levels[J].,2005,(02):150.
[3]管品武,王建强,刘立新.不同延性条件下框架柱塑性铰区箍筋抗剪能力试验研究[J].世界地震工程,2005,(02):031.
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[4]管品武,王建强,刘立新.反复荷载下混凝土框架柱塑性铰区基于延性的抗剪承载力机理分析[J].世界地震工程,2005,(03):075.
 GUAN Pin-wu,WANG Jian-qiang,LIU Li-xin.Research on mechanism of seismic shear capacity of rehlforced concrete frame columns within yield hinge regions under cyclic shear[J].,2005,(02):075.

备注/Memo

备注/Memo:
收稿日期:2011-1-22;改回日期:2011-2-18。
基金项目:河南省教育厅自然科学研究计划项目(2009A560007);河南理工大学博士基金项目(B2008-7)
作者简介:董春敏(1977- ),女,讲师,博士,主要从事混凝土结构抗震设计研究.E-mail:dongchunmin@126.com
更新日期/Last Update: 1900-01-01