外叶墙为非承重墙夹芯墙的抗震性能研究
|
摘要
对4片高度相同、高宽比和竖向压应力不同的夹芯墙进行了水平低周反复加载试验,研究了这种墙体构件的抗震性能.根据实际受力特点,试验中水平荷载与竖向荷载都加载于试件内叶墙的形心.观测了该墙体受力-变形-损伤-裂缝-屈服-破坏的全过程;分析了该墙体的破坏特征、滞回曲线、骨架曲线、位移延性、承载力、拉接筋受力性能和内、外叶墙协同工作能力等.研究结果表明:由于拉接筋的作用,内、外叶墙协同工作性能良好,外叶墙在试验过程中破坏轻微;试验过程中出现剪切滑移和"捏缩效应";内叶墙在高宽比较小时,呈现明显的剪切破坏,在高宽比较大时,呈现出弯剪破坏;试件的承载力随着轴压比的提高而增加.采用规范(GB 50003-2001)中配筋砌体抗剪承载力平均值计算公式进行计算,结果较试验值小.
Experimental studies of four sandwich walls with the same height but different height-width ratio and different vertical compressive stress,which were subjected to in-plane cyclic loading,were presented and tests results were discussed.Based on actual mechanical characteristics,the vertical and horizontal loads were loaded on the center of the interior walls.The whole process of loading-deforming-damaging-cracking-yielding-failure was observed during the test.The failure characteristics,hysteretic curves,skeleton curves,displacement ductility,bearing capacity,behavior of the tie bar and coordination between two cavity walls were analyzed.The result showed that the interior walls and the outer walls worked together well,and the outer walls were slightly damaged;shear slipping and pinching occurred in the test;shear failure occurred when the ratio of height to width was small and bending-shear failure occurred when the ratio increased and the ultimate bearing capacity of the walls increased with the increase of the axial compressive ratio.The shear capacity of the walls in the test is greater compared with the GB 50003-2001 Code.
Experimental studies of four sandwich walls with the same height but different height-width ratio and different vertical compressive stress,which were subjected to in-plane cyclic loading,were presented and tests results were discussed.Based on actual mechanical characteristics,the vertical and horizontal loads were loaded on the center of the interior walls.The whole process of loading-deforming-damaging-cracking-yielding-failure was observed during the test.The failure characteristics,hysteretic curves,skeleton curves,displacement ductility,bearing capacity,behavior of the tie bar and coordination between two cavity walls were analyzed.The result showed that the interior walls and the outer walls worked together well,and the outer walls were slightly damaged;shear slipping and pinching occurred in the test;shear failure occurred when the ratio of height to width was small and bending-shear failure occurred when the ratio increased and the ultimate bearing capacity of the walls increased with the increase of the axial compressive ratio.The shear capacity of the walls in the test is greater compared with the GB 50003-2001 Code.
引文
[1]施楚贤,杨伟军.配筋砌块砌体剪力墙受剪承载力及可靠度分析[J].建筑结构,2001,31(3):41-44.SHI Chu-xian,YANG Wei-jun.The shear bearing capacity andreliability analysis of reinforced masonry shear wall[J].Build-ing Structure,2001,31(3):41-44.(In Chinese)
[2]PRIESTLEY M J N.Seismic design of concrete masonry shearwalls[J].ACI Journal,1986,83(8):58-67.
[3]HALUK S,HUGH D M.Seismic shear capacity of reinforcedmasonry piers[J].Journal of Structural Engineering,ASCE,1991,117(7):2166-2185.
[4]李宏男,张景玮,陆靖.空心砖保温夹心开洞墙体的抗震试验研究[J].地震工程与工程振动,2001,21(2):96-102.LI Hong-nan,ZHANG Jing-wei,LU Jing.Experimentalstudies on aseismic behavior of insulating hollow brick wallswith cavity[J].Earthquake Engineering and Engineering Vi-bration,2001,21(2):96-102.(In Chinese)
[5]李宏男,张景玮,刘莉.多孔砖保温夹芯墙体抗震性能试验与分析[J].建筑结构学报,2001,22(6):73-80.LI Hong-nan,ZHANG Jing-wei,LIU Li.Experiment and a-nalysis of seismic behavior of hollow brick insulating cavitywalls[J].Journal of Building Structures,2001,22(6):73-80.(In Chinese)
[6]周锡元,李万举,闫维明,等.混凝土砌块空腔复合墙体抗震性能试验研究[J].建筑砌块与砌块建筑,2005(6):5-12.ZHOU Xi-yuan,LI Wan-ju,YAN Wei-ming,et al.Experi-mental study on aseismic behavior of concrete hollow blockcavity wall[J].Building Block and Block Construction,2005(6):5-12.(In Chinese)
[7]闫维明,郭米娜,周宏宇,等.混凝土小型空心砌块复合墙体受弯和受剪性能试验研究[J].建筑结构学报,2007,28(5):96-103.YAN Wei-ming,GUO Mi-na,ZHOU Hong-yu,et al.Experi-mental study on shear and bending resistance of small-size con-crete block cavity walls[J].Journal of Building Structures,2007,28(5):96-103.(In Chinese)
[8]郑群圣.夏热冬冷地区夹芯保温墙体系及其抗压性能研究[D].长沙:长沙理工大学土木与建筑学院,2009.ZHENG Qun-sheng.Study on cavity wall system and its com-pression performance in the hot summer and cold winter zone[D].Changsha:School of Civil Engineering and Architecture,Changsha University of Science&Technology,2009.(In Chi-nese)
[9]唐纳德.沃特森(美).建筑材料与选型手册[M].北京:中国建筑工业出版社,2007:268-272.DONALD W.Time-saver standards for building materials&systems:design criteria and selection data[M].Beijing:Chi-na Architecture&Building Press,2007:268-272.(In Chi-nese)
[10]翟希梅.砌块空腔墙体与约束配筋砌块结构的抗震性能研究[D].哈尔滨:哈尔滨工业大学土木工程学院,2001.ZHAI Xi-mei.Research on the aseismic behavior of cavity con-crete block wall and restrained reinforced block structure[D].Haerbin:School of Civil Engineering Harbin Institute of Tech-nology,2001.(In Chinese)
[11]GB 50003—2001砌体结构设计规范[S].GB 50003—2001 Code for design of masonry structures.(InChinese)
[2]PRIESTLEY M J N.Seismic design of concrete masonry shearwalls[J].ACI Journal,1986,83(8):58-67.
[3]HALUK S,HUGH D M.Seismic shear capacity of reinforcedmasonry piers[J].Journal of Structural Engineering,ASCE,1991,117(7):2166-2185.
[4]李宏男,张景玮,陆靖.空心砖保温夹心开洞墙体的抗震试验研究[J].地震工程与工程振动,2001,21(2):96-102.LI Hong-nan,ZHANG Jing-wei,LU Jing.Experimentalstudies on aseismic behavior of insulating hollow brick wallswith cavity[J].Earthquake Engineering and Engineering Vi-bration,2001,21(2):96-102.(In Chinese)
[5]李宏男,张景玮,刘莉.多孔砖保温夹芯墙体抗震性能试验与分析[J].建筑结构学报,2001,22(6):73-80.LI Hong-nan,ZHANG Jing-wei,LIU Li.Experiment and a-nalysis of seismic behavior of hollow brick insulating cavitywalls[J].Journal of Building Structures,2001,22(6):73-80.(In Chinese)
[6]周锡元,李万举,闫维明,等.混凝土砌块空腔复合墙体抗震性能试验研究[J].建筑砌块与砌块建筑,2005(6):5-12.ZHOU Xi-yuan,LI Wan-ju,YAN Wei-ming,et al.Experi-mental study on aseismic behavior of concrete hollow blockcavity wall[J].Building Block and Block Construction,2005(6):5-12.(In Chinese)
[7]闫维明,郭米娜,周宏宇,等.混凝土小型空心砌块复合墙体受弯和受剪性能试验研究[J].建筑结构学报,2007,28(5):96-103.YAN Wei-ming,GUO Mi-na,ZHOU Hong-yu,et al.Experi-mental study on shear and bending resistance of small-size con-crete block cavity walls[J].Journal of Building Structures,2007,28(5):96-103.(In Chinese)
[8]郑群圣.夏热冬冷地区夹芯保温墙体系及其抗压性能研究[D].长沙:长沙理工大学土木与建筑学院,2009.ZHENG Qun-sheng.Study on cavity wall system and its com-pression performance in the hot summer and cold winter zone[D].Changsha:School of Civil Engineering and Architecture,Changsha University of Science&Technology,2009.(In Chi-nese)
[9]唐纳德.沃特森(美).建筑材料与选型手册[M].北京:中国建筑工业出版社,2007:268-272.DONALD W.Time-saver standards for building materials&systems:design criteria and selection data[M].Beijing:Chi-na Architecture&Building Press,2007:268-272.(In Chi-nese)
[10]翟希梅.砌块空腔墙体与约束配筋砌块结构的抗震性能研究[D].哈尔滨:哈尔滨工业大学土木工程学院,2001.ZHAI Xi-mei.Research on the aseismic behavior of cavity con-crete block wall and restrained reinforced block structure[D].Haerbin:School of Civil Engineering Harbin Institute of Tech-nology,2001.(In Chinese)
[11]GB 50003—2001砌体结构设计规范[S].GB 50003—2001 Code for design of masonry structures.(InChinese)
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心