钢管高强混凝土组合柱抗震性能试验研究
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摘要
为研究钢管高强混凝土组合柱的抗震性能,完成了10个试件的拟静力试验。试验主要变化参数为轴压比和配箍特征值,探讨了组合柱在反复水平荷载作用下的破坏形态、滞回特性、位移延性、耗能比、截面应变分布和承载力等受力性能。试验结果表明:10个试件的破坏形态为柱根部混凝土压溃而丧失竖向承载力,力-位移滞回曲线饱满,位移延性系数在4.0以上,极限位移角大于1/40,以耗能比表示的耗能能力接近。用平截面假定和叠加法计算得到的试件在轴压力作用下的正截面承载力与试验结果符合较好,《钢管混凝土叠合柱结构技术规程》(CECS 188:2005)方法计算的正截面承载力偏小较多。
To study the seismic behavior of high-strength concrete-filled steel tube composite columns,quasi-static tests on 10 specimens were conducted.The experimental parameters included the axial force ratio and the stirrup characteristic value.The failure modes,hysteretic characteristics,ductility,energy dissipation ability,seciton strain distribution and load-carrying capacity were studied.The experimental results indicate that the failure mode of the specimens is the crushing of bottom concrete and loss of vertical load-bearing capacity.The horizontal force-displacement hysteresis loops are plump-shape with the displacement ductility ratio of specimen exceeding 4.0,and the ultimate drift ratio exceeding 1/40.The energy dissipation capacity in terms of energy dissipative ratios are about the same among the specimens.The bending strength of the specimens calculated by plane section assumption and by superposition method have good agreement with the test result under axial comperssive force,while the strength obtained by 'Technical specification for steel tube-reinforced concrete column structure'(CECS 188:2005) is much less than the test result.
To study the seismic behavior of high-strength concrete-filled steel tube composite columns,quasi-static tests on 10 specimens were conducted.The experimental parameters included the axial force ratio and the stirrup characteristic value.The failure modes,hysteretic characteristics,ductility,energy dissipation ability,seciton strain distribution and load-carrying capacity were studied.The experimental results indicate that the failure mode of the specimens is the crushing of bottom concrete and loss of vertical load-bearing capacity.The horizontal force-displacement hysteresis loops are plump-shape with the displacement ductility ratio of specimen exceeding 4.0,and the ultimate drift ratio exceeding 1/40.The energy dissipation capacity in terms of energy dissipative ratios are about the same among the specimens.The bending strength of the specimens calculated by plane section assumption and by superposition method have good agreement with the test result under axial comperssive force,while the strength obtained by 'Technical specification for steel tube-reinforced concrete column structure'(CECS 188:2005) is much less than the test result.
引文
[1]陈周熠,赵国藩,易伟建,等.带圆钢管劲性高强混凝土轴压短柱试验研究[J].大连理工大学学报,2005,45(5):687-691.(CHENZhouyi,ZHAO Guofan,YIWeijian,et al.Experimentalresearch on behavior of highstrength concrete columnreinforced with concrete-filled steel tube under axialcompression[J].JournalofDalian University of Technology,2005,45(5):687-691.(in Chinese))
[2]林拥军,程文瀼,李洁.配有圆钢管的钢骨混凝土短柱轴心受压下截面受压承载力的试验研究[J].四川建筑科学研究,2003,29(4):11-13.(LIN Yongjun,CHENG Wenxiang,LI Jie.Experimental study of SRCcolumns with steel circle pipe subjected to axialcompressive loading[J].Building Science Research ofSichuan,2003,29(4):11-13.(in Chinese))
[3]蔡健,谢晓锋,杨春,等.核心高强钢管混凝土柱轴压性能的试验研究[J].华南理工大学学报:自然科学版,2002,30(6):81-85.(CAI Jian,XIE Xiaofeng,YANG Chun,et al.An experimental research on thecomposite column with core of high-strength concretefilled steel tube under axial compression loading[J].Journal of South China University of Technology:Natural Science,2002,30(6):81-85.(in Chinese))
[4]黄智辉,程丽荣,钱稼茹,等.钢管混凝土叠合柱核心区抗剪试验研究与有限元分析[J].工业建筑,2001,31(7):50-53.(HUANG Zhihui,CHENGLirong,QIAN Jiaru,et al.Experimental study andfinite element analysis on shear behavior of steel tubefill high strength concrete composite column core area[J].Industrial Construction,2001,31(7):50-53.(inChinese))
[5]王刚,钱稼茹,林立岩.钢管混凝土叠合构件受弯性能分析[J].工业建筑,2006,36(2):68-71.(WANGGang,QIAN Jiaru,LIN Liyan.Study on bendingbehavior of steel tube reinforced concrete members[J].Industrial Construction,2006,36(2):68-71.(inChinese))
[6]李惠,吴波,林立岩.钢管高强混凝土叠合柱的抗震性能研究[J].地震工程与工程振动,1998,18(1):45-53.(LI Hui,WUBo,LINLiyan.Study on seismicproperties of laminated column with high strengthconcrete containing steel tube[J].EarthquakeEngineering and Engineering Vibration,1998,18(1):45-53.(in Chinese))
[7]赵国藩,张德娟,黄承逵.钢管混凝土增强高强混凝土柱的抗震性能研究[J].大连理工大学学报,1996,36(6):759-766.(ZHAO Guofan,ZHANGDejuan,HUANG Chengkui.Study of earthquakeresistant behaviour of high strength concrete columnreinforced with concrete filled steel tube[J].Journal ofDalian University of Technology,1996,36(6):759-766.(in Chinese))
[8]CECS 188:2005钢管混凝土叠合柱结构技术规程[S].(CECS 188:2005 Technical specification forsteel tube-reinforced concrete column structure[S].(in Chinese))
[9]GB 50011—2001建筑抗震设计规范[S].(GB50011—2001 Code for seisimic design of buildings[S].(in Chinese)).
[10]朱伯龙.结构抗震试验[M].北京:地震出版社,1989.
[11]李立仁,支运芳,陈永庆,等.高强约束混凝土框架柱抗震性能的研究[J].重庆建筑大学学报,2002,24(5):38-45.(LI Liren,ZHI Yunfang,CHENYongqing,et al.Research on anti-seismic ability ofhoop reinforced high strength concrete frame column[J].Journal of Chongqing Jianzhu University,2002,24(5):38-45.(in Chinese))
[12]GB 50010—2002混凝土结构设计规范[S].(GB50010—2002 Code for design of concrete structures[S].(in Chinese))
[13]蔡绍环.现代钢管混凝土结构[M].北京:人民交通出版社,2007.(CAI Shaohuai.Modern steel tubeconfined concrete structures[M].Beijing:ChinaCommunicaitons Press,2007.(in Chinese))
[14]JGJ 101—96建筑抗震试验方法规程[S].(JGJ101—96 Specification of testing methods forearthquake resistant building[S].(in Chinese))
[2]林拥军,程文瀼,李洁.配有圆钢管的钢骨混凝土短柱轴心受压下截面受压承载力的试验研究[J].四川建筑科学研究,2003,29(4):11-13.(LIN Yongjun,CHENG Wenxiang,LI Jie.Experimental study of SRCcolumns with steel circle pipe subjected to axialcompressive loading[J].Building Science Research ofSichuan,2003,29(4):11-13.(in Chinese))
[3]蔡健,谢晓锋,杨春,等.核心高强钢管混凝土柱轴压性能的试验研究[J].华南理工大学学报:自然科学版,2002,30(6):81-85.(CAI Jian,XIE Xiaofeng,YANG Chun,et al.An experimental research on thecomposite column with core of high-strength concretefilled steel tube under axial compression loading[J].Journal of South China University of Technology:Natural Science,2002,30(6):81-85.(in Chinese))
[4]黄智辉,程丽荣,钱稼茹,等.钢管混凝土叠合柱核心区抗剪试验研究与有限元分析[J].工业建筑,2001,31(7):50-53.(HUANG Zhihui,CHENGLirong,QIAN Jiaru,et al.Experimental study andfinite element analysis on shear behavior of steel tubefill high strength concrete composite column core area[J].Industrial Construction,2001,31(7):50-53.(inChinese))
[5]王刚,钱稼茹,林立岩.钢管混凝土叠合构件受弯性能分析[J].工业建筑,2006,36(2):68-71.(WANGGang,QIAN Jiaru,LIN Liyan.Study on bendingbehavior of steel tube reinforced concrete members[J].Industrial Construction,2006,36(2):68-71.(inChinese))
[6]李惠,吴波,林立岩.钢管高强混凝土叠合柱的抗震性能研究[J].地震工程与工程振动,1998,18(1):45-53.(LI Hui,WUBo,LINLiyan.Study on seismicproperties of laminated column with high strengthconcrete containing steel tube[J].EarthquakeEngineering and Engineering Vibration,1998,18(1):45-53.(in Chinese))
[7]赵国藩,张德娟,黄承逵.钢管混凝土增强高强混凝土柱的抗震性能研究[J].大连理工大学学报,1996,36(6):759-766.(ZHAO Guofan,ZHANGDejuan,HUANG Chengkui.Study of earthquakeresistant behaviour of high strength concrete columnreinforced with concrete filled steel tube[J].Journal ofDalian University of Technology,1996,36(6):759-766.(in Chinese))
[8]CECS 188:2005钢管混凝土叠合柱结构技术规程[S].(CECS 188:2005 Technical specification forsteel tube-reinforced concrete column structure[S].(in Chinese))
[9]GB 50011—2001建筑抗震设计规范[S].(GB50011—2001 Code for seisimic design of buildings[S].(in Chinese)).
[10]朱伯龙.结构抗震试验[M].北京:地震出版社,1989.
[11]李立仁,支运芳,陈永庆,等.高强约束混凝土框架柱抗震性能的研究[J].重庆建筑大学学报,2002,24(5):38-45.(LI Liren,ZHI Yunfang,CHENYongqing,et al.Research on anti-seismic ability ofhoop reinforced high strength concrete frame column[J].Journal of Chongqing Jianzhu University,2002,24(5):38-45.(in Chinese))
[12]GB 50010—2002混凝土结构设计规范[S].(GB50010—2002 Code for design of concrete structures[S].(in Chinese))
[13]蔡绍环.现代钢管混凝土结构[M].北京:人民交通出版社,2007.(CAI Shaohuai.Modern steel tubeconfined concrete structures[M].Beijing:ChinaCommunicaitons Press,2007.(in Chinese))
[14]JGJ 101—96建筑抗震试验方法规程[S].(JGJ101—96 Specification of testing methods forearthquake resistant building[S].(in Chinese))
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