高强钢筋高强混凝土框架结构拟动力试验研究
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摘要
采用MTS公司生产的液压伺服加载系统对1/2比例单跨二榀二层框架模型进行拟动力试验,研究配有高强钢筋高强混凝土框架结构抗震性能.试验采用经过调幅的具有不同地震加速度峰值的3种地震波作为激励进行加载,共采用11种工况.重点研究了这种结构在地震过程中动力特性的变化、裂缝出现情况、滞回性能、弹性和弹塑性阶段的地震反应及抗震性能.试验结果表明:此类高强混凝土框架结构具有较好的抗震性能.该试验研究成果为在地震区采用高强混凝土框架结构提供了一条有效的途径.
An experimental research on high-strength concrete(HSC) frame structure reinforced with high-strength rebars is presented.The pseudo-dynamic tests were performed for 1/2 scale frame model with two floors and two bays using MTS loading system.The test is to develop the seismic behavior of the frame with high-strength concrete and pre-stressed rebars.The specimen was subjected to 11 loading cases by using three kinds of acceleration records of ground motion with the adjusted amplitude,focusing on study of change of dynamic character during earthquakes,cracking patterns,hysteretic behaviors and seismic responses in elastic and elastic-plastic stages.The experimental results show that this kind of HSC frame structure can meet the requirements of the seismic performance.The results of the test may open a new road for the application of HSC frame structure in seismic zone.
An experimental research on high-strength concrete(HSC) frame structure reinforced with high-strength rebars is presented.The pseudo-dynamic tests were performed for 1/2 scale frame model with two floors and two bays using MTS loading system.The test is to develop the seismic behavior of the frame with high-strength concrete and pre-stressed rebars.The specimen was subjected to 11 loading cases by using three kinds of acceleration records of ground motion with the adjusted amplitude,focusing on study of change of dynamic character during earthquakes,cracking patterns,hysteretic behaviors and seismic responses in elastic and elastic-plastic stages.The experimental results show that this kind of HSC frame structure can meet the requirements of the seismic performance.The results of the test may open a new road for the application of HSC frame structure in seismic zone.
引文
[1]阎石,肖潇,张曰果,等.高强钢筋约束混凝土矩形截面柱的抗震性能试验研究[J].沈阳建筑大学学报:自然科学版,2006,22(1):7-10.YAN Shi,XIAO xiao,ZHANG Yue-guo,et al.Seismic performances of square HSC columnsconfined with high-strength PC rebar[J].Journal ofShenyang Jianzhu University(Natural Science),2006,22(1):7-10.(in Chinese)
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[11]黄靓,施楚贤,刘桂秋,等.MDOF子结构拟动力方法在复杂高层结构抗震试验中的应用研究[J].土木工程学报,2006,39(12):23-32.HUANG Liang,SHI Chu-xian,LIU Gui-qiu,et al.MDOF substructure pseudo-dynamic testing forcomplex tall buildings[J].China Civil EngineeringJournal,2006,39(12):23-32.(in Chinese)
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[2]阎石,张曰果,王旭东.圆形截面高强混凝土柱抗震性能试验研究[J].沈阳建筑大学学报:自然科学版,2006,22(4):538-542.YAN Shi,ZHANG Yue-guo,WANG Xu-dong.Seismic performance test study on circular HSCcolumns confined with high-strength rebar[J].Journal of Shenyang Jianzhu University(NaturalScience),2006,22(4):538-542.(in Chinese)
[3]阎石,郑文泉,张曰果.高强钢筋高强混凝土框架梁柱节点抗震性能试验研究[J].沈阳建筑大学学报:自然科学版,2006,22(2):199-203.YAN Shi,ZHENG Wen-quan,ZHANG Yue-guo.An experimental study on seismic behaviors of HRCframe joints reinforced with high-strength rebars[J].Journal of Shenyang Jianzhu University(NaturalScience),2006,22(2):199-203.(in Chinese)
[4]朱伯龙.结构抗震试验[M].北京:地震出版社,1989.ZHU Bo-long.Seismic Test for Structures[M].Beijing:Seismological Press,1989.(in Chinese)
[5]邱法维,钱稼茹,陈志鹏.结构抗震实验方法[M].北京:科学出版社,2000.QIU Fa-wei,QIAN Jia-ru,CHEN Zhi-peng.SeismicTest Methodology for Structures[M].Beijing:SciencePress,2000.(in Chinese)
[6]赵西安.用计算机-试验机联机系统进行结构拟动力试验的方法[J].建筑结构学报,1986(5):32-41.ZHAO Xi-an.A pseudo-dynamic method ofstructural experiment by computer-actuator on-linesystem[J].Journal of Building Structures,1986(5):32-41.(in Chinese)
[7]Horiuchi T,Inoue M,Konno T,et al.Real-timehybrid experimental system with actuator delaycompensation and its application to a piping systemwith energy absorber[J].Earthquake Engineeringand Structural Dynamics,1999,28(4):1121-1141.
[8]Nakashima M,Masaoka N.Real-time on-line test forMDOF systems[J].Earthquake Engineering andStructural Dynamics,1999,28(4):393-420.
[9]Buonopanc S G,White R N.Pseudo-dynamic testing ofmasonry infilled reinforced concrete frame[J].Journal ofStructure Engineering,1999,125(6):578-589.
[10]马乐为,吴敏哲.12层异形柱小型混凝土空心砌块组合结构拟动力试验研究[J].世界地震工程,2002,18(4):159-162.MA Le-wei,WU Min-zhe.The pseudo-dynamictesting study on the twelve-storied compositestructure system with special-shaped columns andsmall-scale RC hollow blocks[J].World EarthquakeEngineering,2002,18(4):159-162.(in Chinese)
[11]黄靓,施楚贤,刘桂秋,等.MDOF子结构拟动力方法在复杂高层结构抗震试验中的应用研究[J].土木工程学报,2006,39(12):23-32.HUANG Liang,SHI Chu-xian,LIU Gui-qiu,et al.MDOF substructure pseudo-dynamic testing forcomplex tall buildings[J].China Civil EngineeringJournal,2006,39(12):23-32.(in Chinese)
[12]中华人民共和国建设部.GB50011—2001建筑抗震设计规范[S].北京:中国建筑工业出版社,2001.Ministry of Construction of the People′s Republic ofChina.GB 50011—2001Code for Seismic Design ofBuildings[S].Beijing:China Architecture&Building Press,2001.(in Chinese)
[13]中华人民共和国建设部.GB50001—2002混凝土结构设计规范[S].北京:中国建筑工业出版社,2002.Ministry of Construction of the People′s Republic ofChina.GB 50001—2002 Code for Design ofConcrete Structures[S].Beijing:China Architecture&Building Press,2002.(in Chinese)
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