配置核心钢管的钢筋混凝土柱-钢骨混凝土梁组合框架抗震性能试验研究
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摘要
进行两榀配置核心钢管的钢筋混凝土柱-钢骨混凝土梁组合框架试件在水平低周往复荷载作用下的试验研究,观察试验过程及破坏形态,研究试件的滞回特性、骨架曲线、刚度退化、耗能能力、残余变形等抗震性能,同时对梁柱端纵筋、钢骨翼缘及钢管在不同加载位移下的应变变化规律进行分析,得到框架结构的出铰顺序。研究结果表明:两榀框架滞回曲线饱满,施加预应力后仍具有较好的耗能能力和延性,表现出良好的抗震性能;框架柱底塑性铰区的钢管环向应变在整个加载过程中呈不均匀变化趋势,截面受压区钢管环向受拉,能够对受压区混凝土提供有效约束;钢骨混凝土梁由于施加预应力的作用,可延缓其裂缝的出现;此外,两榀框架试件均呈现"先梁端后柱底"的出铰顺序,能实现梁铰耗能机制,延迟柱底出铰时刻。
This paper conducted a test on two frame structures of steel reinforced concrete beam and steel-tube encased concrete column under horizontal low cyclic loading.The test process and failure mode were observed,and the hysteretic behavior,skeleton curves,stiffness degradation,energy dissipation,and residential deformation of the two frames were studied.Meanwhile,the law of strain values of longitudinal bars,flanges and steel-tube in the beam and column end was analyzed carefully,and the order of plastic hinges was given.The test results show that hysteretic curves of the two specimens are plump,and one also behaves good energy dissipation when it is prestressed,and they behave good seismic performance.Meanwhile,the hoop strains of steel-tube of plastic hinge in the column bottom changes unevenly during the whole loading,and they could supply effective constraint on compressive concrete.And the cracks could be delayed when the steel reinforced concrete beam is prestressed.Furthermore,the sequence of plastic hinges of the two specimens is 'beam ends before and column bottoms after',so that the mechanism of energy dissipation for beam plastic hinges and a delayed occurring of plastic hinges for column bottom could be achieved.
This paper conducted a test on two frame structures of steel reinforced concrete beam and steel-tube encased concrete column under horizontal low cyclic loading.The test process and failure mode were observed,and the hysteretic behavior,skeleton curves,stiffness degradation,energy dissipation,and residential deformation of the two frames were studied.Meanwhile,the law of strain values of longitudinal bars,flanges and steel-tube in the beam and column end was analyzed carefully,and the order of plastic hinges was given.The test results show that hysteretic curves of the two specimens are plump,and one also behaves good energy dissipation when it is prestressed,and they behave good seismic performance.Meanwhile,the hoop strains of steel-tube of plastic hinge in the column bottom changes unevenly during the whole loading,and they could supply effective constraint on compressive concrete.And the cracks could be delayed when the steel reinforced concrete beam is prestressed.Furthermore,the sequence of plastic hinges of the two specimens is 'beam ends before and column bottoms after',so that the mechanism of energy dissipation for beam plastic hinges and a delayed occurring of plastic hinges for column bottom could be achieved.
引文
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[12]王文达,韩林海,陶忠.钢管混凝土柱-钢梁平面框架抗震性能的试验研究[J].建筑结构学报,2006,27(3):48-58.(WANG Wenda,HAN Linhai,TAOZhong.Experimental research on seismic behavior ofconcrete filled CHS and SHS columns and steel beamplanar frames[J].Journal of Building Structures,2006,27(3):48-58.(in Chinese))
[13]傅传国,李玉莹,孙晓波,徐杰.预应力及非预应力型钢混凝土框架受力及抗震性能试验研究[J].建筑结构学报,2010,31(8):15-21.(FU Chuanguo,LIYuyin,SUN Xiaobo,XU Jie.Experimental study onseismic performance of prestressed and non-prestressedsteel reinforced concrete frames[J].Journal of BuildingStmctures,2010,31(8):15-21.(in Chinese))
[14]唐兴荣,何葆林.空间钢构架混凝土框架结构抗震性能试验研究和设计建议[J].建筑结构学报,2009,30(3):45-52.(TANG Xingrong,HE Baolin.Experimental study and design recommendations onseismic behavior of spatial steel frame concrete framestructures[J].Journal of Building Stmctures,2009,30(3):45-52.(in Chinese))
[15]CECS28:90钢管混凝土结构设计与施工规程[S].北京:中国计划出版社,1990:23-24.(CECS28:90 Specification for design and construction ofconcrete filled steel tubular structures[S].Beijing:Chinese Planning Press,1990:23-24.(in Chinese))
[16]JGJ101—1996建筑抗震试验方法规程[S].北京:中国建筑工业出版社,1997:11-17.(JGJ101—1996 Specification of testing methods for earthquakeresistant building[S].Beijing:China Architecture&Building Press,1997:11-17.(in Chinese))
[17]计静.套建增层预应力钢骨混凝土框架抗震性能与设计方法研究[D].哈尔滨:哈尔滨工业大学,2008:39-41.(Ji Jing.Research on seismic performance anddesign method of jacketing steel reinforced concreteframe prestressed with bonded tendons[D].Harbin:Harbin Institute of Technology,2008:39-41.(inChinese))
[2]郑文忠,刘铁,谭军,等.绥芬河青云市场套(扩)建工程结构设计方法与施工措施研究[J].土木工程学报,2006,39(11):68-76.(Zheng Wenzhong,Liu Tie,Tan Jun,et al.Design methods andconstruction techniques for the outer-jacketing structurereconstruction(extension)project of the SuifenheQingyun Market[J].China Civil Engineering Journal,2006,39(11):68-76.(in Chinese))
[3]Zheng Wenzhong,Wang Kun,Zhang Geming.Experimental study on hysteretic behavior of prestressedtruss concrete composite beams[J].EarthquakeEngineering and Engineering Vibration,2010,9(1):65-74.
[4]郑文忠,王琨.型钢混凝土梁-角钢混凝土柱框架抗震性能试验研究[J].土木工程学报,2011,44(3):49-60.(Zheng Wenzhong,Wang Kun.Study ofseismic performance of frame structures of steelreinforced concrete beams and angle-steel concretecolumns[J].China Civil Engineering Journal,2011,44(3):49-60.(in Chinese))
[5]赵鸿铁.钢与混凝土组合结构[M].北京:科学出版社,2001:77-99.(Zhao Hongtie.Steel and concretecomposite structure[M].Beijing:Science Press,2001:77-99.(in Chinese))
[6]傅传国,李玉莹,梁书亭.预应力型钢混凝土简支梁受弯性能试验研究[J].建筑结构学报,2007,28(3):62-73.(FU Chuanguo,LI Yuying,LIANGShuting.Experimental study on simply supportedprestressed steel reinforced concrete beams[J].Journalof Building Structures,2007,28(3):62-73.(inChinese))
[7]王钧,邬丹,郑文忠.预应力H型钢混凝土简支梁正截面受力性能试验[J].哈尔滨工业大学学报,2009,41(6):22-27.(WANG Jun,WU Dan,ZHENGWenzhong.Experimental research on flexuralmechanical behavior of simple prestressed H-steelreinforced concrete beam[J].Journal of HarbinInstitute of Technology,2009,41(6):22-27.(inChinese))
[8]薛伟辰,杨枫,苏旭霖,陆平.预应力钢骨混凝土梁低周反复荷载试验研究[J].哈尔滨工业大学学报,2007,39(8):1187-1190.(XUE Weichen,YANGFeng,SU Xulin,LU Ping.Experimental studies onprestressed steel reinforced concrete beams under lowreversed cyclic loading[J].Journal of Harbin Instituteof Technology,2007,39(8):1187-1190.(inChinese))
[9]李惠,王震宇,吴波.钢管高强混凝土叠合柱抗震性能与受力机理的试验研究[J].地震工程与工程振动,1999,19(3):27-33.(LI Hui,WANG Zhen-yu,WU Bo.Experimental research on mechanism andseismic performance of laminated column with steel tubefilled with high-strength concrete[J].EarthquakeEngineering and Engineering Vibration,1999,19(3):27-33.(in Chinese))
[10]赵国藩,张德娟,黄承逵.钢管砼增强高强砼柱的抗震性能研究[J].大连理工大学学报,1996,36(6):759-766.(Zhao Guofan,Zhang Dejuan,HuangChengkui.Study of earthquake resistant behaviour ofhigh strength concrete column reinforced with concretefilled steel tube[J].Journal of Dalian University ofTechnology,1996,36(6):759-766.(in Chinese))
[11]聂建国,赵洁,柏宇.钢管混凝土核心柱轴压极限承载力[J].清华大学学报:自然科学版,2005,45(9):1153-1156.(NIE Jianguo,ZHAO Jie,BAI Yu.Bearing capacity of axially compressed core columnshaving concrete-filled steel tubes[J].Journal ofTsinghua University:Science and Technology,2005,45(9):1153-1156.(in Chinese))
[12]王文达,韩林海,陶忠.钢管混凝土柱-钢梁平面框架抗震性能的试验研究[J].建筑结构学报,2006,27(3):48-58.(WANG Wenda,HAN Linhai,TAOZhong.Experimental research on seismic behavior ofconcrete filled CHS and SHS columns and steel beamplanar frames[J].Journal of Building Structures,2006,27(3):48-58.(in Chinese))
[13]傅传国,李玉莹,孙晓波,徐杰.预应力及非预应力型钢混凝土框架受力及抗震性能试验研究[J].建筑结构学报,2010,31(8):15-21.(FU Chuanguo,LIYuyin,SUN Xiaobo,XU Jie.Experimental study onseismic performance of prestressed and non-prestressedsteel reinforced concrete frames[J].Journal of BuildingStmctures,2010,31(8):15-21.(in Chinese))
[14]唐兴荣,何葆林.空间钢构架混凝土框架结构抗震性能试验研究和设计建议[J].建筑结构学报,2009,30(3):45-52.(TANG Xingrong,HE Baolin.Experimental study and design recommendations onseismic behavior of spatial steel frame concrete framestructures[J].Journal of Building Stmctures,2009,30(3):45-52.(in Chinese))
[15]CECS28:90钢管混凝土结构设计与施工规程[S].北京:中国计划出版社,1990:23-24.(CECS28:90 Specification for design and construction ofconcrete filled steel tubular structures[S].Beijing:Chinese Planning Press,1990:23-24.(in Chinese))
[16]JGJ101—1996建筑抗震试验方法规程[S].北京:中国建筑工业出版社,1997:11-17.(JGJ101—1996 Specification of testing methods for earthquakeresistant building[S].Beijing:China Architecture&Building Press,1997:11-17.(in Chinese))
[17]计静.套建增层预应力钢骨混凝土框架抗震性能与设计方法研究[D].哈尔滨:哈尔滨工业大学,2008:39-41.(Ji Jing.Research on seismic performance anddesign method of jacketing steel reinforced concreteframe prestressed with bonded tendons[D].Harbin:Harbin Institute of Technology,2008:39-41.(inChinese))
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