[1]李宏男,王强,李兵.钢筋混凝土框架柱多维恢复力特性的试验研究[J].东南大学学报(自然科学版),2002,32(5):728-732.[doi:10.3969/j.issn.1001-0505.2002.05.011]
 Li Hongnan,Wang Qiang,Li Bing.Experiments on characteristics of multi-dimensional restoring forces of reinforced concrete frame columns[J].Journal of Southeast University (Natural Science Edition),2002,32(5):728-732.[doi:10.3969/j.issn.1001-0505.2002.05.011]
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钢筋混凝土框架柱多维恢复力特性的试验研究()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
32
期数:
2002年第5期
页码:
728-732
栏目:
土木工程
出版日期:
2002-09-20

文章信息/Info

Title:
Experiments on characteristics of multi-dimensional restoring forces of reinforced concrete frame columns
作者:
李宏男1王强 李兵2
1 大连理工大学土木水利学院,大连 116024; 2 沈阳建筑工程学院土木工程系,沈阳 110015
Author(s):
Li Hongnan1 Wang Qiang2 Li Bing2
1 School of Civil and Hydraulic Engineering, Dalian University of Technology,Dalian 116024, China
2 Department of Civil Engineering, Shenyang Architecture and Civil Engineering Institute, Shenyang 110015, China
关键词:
钢筋混凝土框架柱 多维拟静力试验 滞回曲线 破坏特征
Keywords:
reinforced concrete frame column multiple loading quasi-static test hysteretic curve failure characteristics
分类号:
TU375.3
DOI:
10.3969/j.issn.1001-0505.2002.05.011
摘要:
利用拟静力试验对钢筋混凝土框架柱分别进行了不同轴压比下单、双向循环加载和双向变轴力循环加载,得到了在不同加载路径和加载方式下力与位移关系的本构模型.通过比较不同加载形式下柱的破坏形态、破坏程度,对试验现象和滞回曲线的分析得出:双向荷载作用使得柱的承载力较单向荷载作用有较大的下降; 在双向荷载作用下,构件的强度退化和刚度退化现象均较单向荷载作用下严重得多,且轴压比的增大加重了构件的强度退化和刚度退化现象; 双向荷载作用使得柱的延性也大为降低.
Abstract:
Quasi-static experiments of reinforced concrete frame columns are carried out under different axial compressions and uniaxial/biaxial cyclic lateral loading. The relationship between force and displacement is obtained with different loading paths and different loading approaches. Through the experiments and analyses, it can be concluded that the bearing capacity of columns under biaxial lateral load is lower than uniaxial lateral load, and degradations of strength and stiffness are also more serious. This kind of phenomenon is aggravated with increase of the axial compression ratio. At the same time, the ductility of column under biaxial lateral load is also reduced.

参考文献/References:

[1] 李宏男.结构多维抗震理论与设计方法[M].北京:科学出版社,1998.
[2] Lau Kintak,Zhou Limin.The mechanical behaviour of composite-wrapped concrete cylinders subjected to uniaxial compression load[J].Composite Structures,2001,52(2):189-198.
[3] Skjrbk P S,Taskin B,Kirkegaard P H,et al.An experimental study of a midbroken 2-bay,6-storey reinforced concrete frame subject to earthquakes[J]. Soil Dynamics and Earthquake Engineering,1997,16(6):373-384.
[4] Low S S,Moehle J P.Experimental Study of Reinforced Concrete Column Subjected to Multi-axial Loading[R].Report No.UCB/EERC-87/14,California:University of California,Berkeley,1987.
[5] Park Y J A,Ang H S,Wen Y K.Seismic damage analysis of reinforced concrete buildings[J].ASCE Journal of Structural Engineering,1985,111(4):740-757.
[6] 邱法维,李文峰,潘鹏,等.钢筋混凝土柱的双向拟静力实验研究[J].建筑结构学报,2001,22(5):26-31.
  Qiu Fawei,Li Wenfeng,Pan Peng,et al.Two dimensional pseudo-static experiments on reinforced concrete columns[J]. Journal of Building Structures, 2001,22(5):26-31.(in Chinese)
[7] 杜宏彪,沈聚敏.在任意加载路径下双轴弯曲钢筋混凝土柱的非线性分析[J].地震工程与工程振动,1990,10(3):41-55.
  Du Hongbiao,Shen Jumin.Nonlinear analysis of two-axial bending reinforced concrete columns under any loading path[J].Earthquake Engineering and Engineering Vibration,1990,10(3):41-55.(in Chinese)

备注/Memo

备注/Memo:
基金项目: 国家杰出青年科学基金资助项目(50025823)、辽宁省青年科研人才培养基金资助项目(973010)、辽宁省教委重大资助项目(20201056).
作者简介: 李宏男(1957—),男,长江学者特聘教授,hnli@dlut.edu.cn.
更新日期/Last Update: 2002-09-20