宋坤;李振宝;

• 1:北京工业大学城市与工程安全减灾教育部重点实验室

• 2:燕山大学建筑工程与力学学院

摘要(Abstract)：

为研究斜向地震作用下高轴压比RC短柱在不同加载角度及配箍率下的抗震性能,开展5根截面尺寸为300mm×300mm,轴压比为0.6,配箍率分别为0.529%和1.058%,加载角度分别为0°、22.5°及45.0°的钢筋混凝土柱试件的低周往复加载实验,记录试件的破坏形态,提取滞回曲线和骨架曲线;从耗能能力、承载力及延性等方面对RC短柱进行抗震性能分析.结果表明:相同加载角度的试件随配箍率的增大,承载力增大,强度退化变缓,刚度基本不变.水平主轴加载时,配箍率对试件延性基本没影响;斜向水平加载时,延性随配箍率的增大而有所增大,提高配箍率可以在一定程度上改善试件的变形能力.该研究结果为RC短柱在工程中应用提供参考,为完善混凝土结构设计规范提供依据.

关键词(KeyWords)：斜向地震作用;高轴压比;RC短柱;加载角度;配箍率;抗震性能

Abstract:

Keywords:

基金项目(Foundation):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)

作者(Author):宋坤;李振宝;

Email:

参考文献(References)：

• [1]王铁成,郭永亮,张洪波.两向不等肢配箍矩形截面柱双向受剪试验分析[J].天津大学学报,2005,38(7):620-624.Wang Tiecheng,Guo Yongliang,Zhang Hongbo.Shear strength of column with different areas stirrups in two principal directions under skewed horizontal loads[J].Journal of Tianjin University,2005,38(7):620-624.

• [2]Hidetaka U,James O J.Short rectangular RC columns under bidirectional loadings[J].Journal of Structural Engineering,1984,110(3):605-618.

• [3]Kyuichi M,Horacio R,James O J.Short RC columns under bilateral load histories[J].Journal of Structural Engineering,1984,110(1):120-137.

• [4]Kyle A W,James O J.Influence of reinforcement on RC short column lateral resistance[J].Journal of Structural Engineering,1984,110(1):90-104.

• [5]白那,张文福,金世玉,等.3种典型加载路径下的双向压弯方钢管短柱相关曲线[J].大庆石油学院学报,2004,28(3):67-70.Bai Na,Zhang Wenfu,Jin Shiyu,et al.The related curves on biaxial bending rectangular steel tubular short column under 3kinds of typical loading path[J].Journal of Daqing Petroleum Institute,2004,28(3):67-70.

• [6]赵文艳.斜向受力方钢管混凝土框架柱的滞回性能分析[J].大庆石油学院学报,2003,27(2):114-114,122.Zhao Wenyan.Hysteretic performance analysis on square steel tubular concrete frame column under oblique loading action[J].Journal of Daqing Petroleum Institute,2003,27(2):114-114,122.

• [7]董春敏,蔺新艳,连瑾.考虑地震作用矩形截面框架柱双向受剪承载力[J].工业建筑,2011,41(4):26-29.Dong Chunmin,Lin Xinyan,Lian Jin.Bilateral shear strength of rectangular frame columns under earthquake[J].Industrial Construction,2011,41(4):26-29.

• [8]王立军,王铁成,王崧.斜向水平荷载作用下钢筋混凝土框架柱受剪性能的试验研究[J].建筑结构学报,2006,27(4):96-102.Wang Lijun,Wang Tiecheng,Wang Song.Experimental study on shear behavior of reinforced concrete frame column under bialateral horizontal loads[J].Journal of Building Structures,2006,27(4):96-102.

• [9]戎贤,王铁成,康谷贻.钢筋混凝土框架柱双向受剪承载力分析[J].地震工程与工程振动,2002,22(5):46-52.Rong Xian,Wang Tiecheng,Kang Guyi.Study on two-way shear strength of columns in RC frames[J].Earthquake Engineering and Engineering Vibration,2002,22(5):46-52.

• [10]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,2011,27(2):179-184.Dong Chunmin,Meng Haiping,Sun Jiajia.Simplified method for bilateral shear strength of rectangular frame columns[J].World Earthquake Engineering,2011,27(2):179-184.

• [11]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,2012,28(3):65-69.Dong Chunmin,Zhou Miao.A seismatic performance of rectangular frame column subjected to oblique reciprocating horizontal load[J].World Earthquake Engineering,2012,28(3):65-69.

• [12]Sakino K,Tomii M.Strength of concrete filled steel tubular beam-columns failed in flexure[J].Trans of A.I.J.,1987,10(3):35-42.

• [13]Varma A H,Ricles J M,Sause R.Seismic behavior and modeling of high-strength composite concrete filled steel tube(CFT)beamcolumns[J].Journal of Constructional Steel Research,2002,58(2):725-758.

• [14]Milner D M,Spacone J E,Frangopol D M.New light on performance of short and slender reinforced concrete columns under random loads[J].Engineering Structures,2001,21(23):147-157.

• [15]Tomii T,Sakino K.Elasto-plastic behavior of concrete filled squire steel tubular beam-columns[J].Trans of A.I.J.,1979,2(8):111-120.