多层砌体填充墙框架结构抗震性能试验研究
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摘要
为了研究砌体填充墙沿框架层不连续布置对框架结构抗震性能的影响,进行了3榀两层单跨砌体填充墙框架结构模型、1榀单层单跨砌体填充墙框架结构模型、1榀两层单跨框架结构模型和1榀单层单跨框架结构模型的对比试验,分析了各试件的破坏特征、滞回曲线、骨架曲线、位移延性、刚度退化、承载力退化和耗能性能等抗震性能指标。结果表明:无论是单层单跨还是两层单跨的砌体填充墙框架结构,其水平峰值荷载和初始刚度比相应的纯框架结构均有较大幅度的提高,且其刚度退化程度比相应纯框架结构要缓慢;砌体填充墙的存在提高了框架结构的抗侧刚度和水平峰值荷载,使框架结构的变形由剪切型逐渐转变为弯剪型;砌体填充墙参与了结构的滞回耗能,填充墙框架的位移延性和累积耗能能力明显优于框架;砌体填充墙沿框架层不连续布置会引起框架结构层间侧移刚度和层间受剪承载力发生突变,影响框架结构的破坏形态,但由于砌体填充墙参与了框架结构的滞回耗能,故其仍具有较好的抗震性能。
In order to study the effects of masonry infill wall discontinuous arrangement on the seismic behavior of multi-story frame structures,comparison tests of three two-story single bay masonry infilled frame structure,one single story single bay masonry infilled frame structure and one two-story single bay frame structure,one single story single bay frame structure subjected to low cyclic reversed load were carried out.The damage characteristics,load-displacement hysteretic loops,skeleton curves,bearing capacity,displacement ductility,rigidity degradation,strength degradation and energy dissipation were analyzed.The test results indicate that whether it is a single story single bay or a two-story single bay masonry infilled reinforced concrete frame structure,their bearing capacity and initial rigidity are raised significantly than the corresponding bare frame structure,and their rigidity degradation degree are slower than the corresponding bare frame structure.The masonary infill wall enhances the lateral stiffness and peak load of the frame structures,and makes the lateral displacement curves of the frame structure gradually change from shear type into bending shear type.Due to the contribution of the masonry infill wall,the displacement ductility and cumulative energy dissipation capacity of masonry infilled frame is better than those of the bare frame.The discontinuous arrangement of masonry infill walls along the frame make the story lateral stiffness and shear capacity change abruptly,and affects the failure modes of infilled reinforced concrete frames.However,since the masonry infill wall participates in the structural hysteretic energy dissipation,the masonry infilled frame has better seismic behavior than that of the frame structure.
In order to study the effects of masonry infill wall discontinuous arrangement on the seismic behavior of multi-story frame structures,comparison tests of three two-story single bay masonry infilled frame structure,one single story single bay masonry infilled frame structure and one two-story single bay frame structure,one single story single bay frame structure subjected to low cyclic reversed load were carried out.The damage characteristics,load-displacement hysteretic loops,skeleton curves,bearing capacity,displacement ductility,rigidity degradation,strength degradation and energy dissipation were analyzed.The test results indicate that whether it is a single story single bay or a two-story single bay masonry infilled reinforced concrete frame structure,their bearing capacity and initial rigidity are raised significantly than the corresponding bare frame structure,and their rigidity degradation degree are slower than the corresponding bare frame structure.The masonary infill wall enhances the lateral stiffness and peak load of the frame structures,and makes the lateral displacement curves of the frame structure gradually change from shear type into bending shear type.Due to the contribution of the masonry infill wall,the displacement ductility and cumulative energy dissipation capacity of masonry infilled frame is better than those of the bare frame.The discontinuous arrangement of masonry infill walls along the frame make the story lateral stiffness and shear capacity change abruptly,and affects the failure modes of infilled reinforced concrete frames.However,since the masonry infill wall participates in the structural hysteretic energy dissipation,the masonry infilled frame has better seismic behavior than that of the frame structure.
引文
[1]清华大学、西南交通大学、北京交通大学土木工程结构专家组.汶川地震建筑震害分析[J].建筑结构学报,2008,29(4):1-9.(Civil and Structural Groupsof Tsinghua University,Xi’nan Jiaotong University andBeijing Jiaotong University.Analysis on buildingseismic damage in Wenchuan earthquake[J].Journalof Building Structures,2008,29(4):1-9.(inChinese))
[2]刘大海,钟锡根,杨翠如.砖填充墙框架房屋的地震内力分析[J].建筑结构学报,1981,2(2):34-43.(LIU Dahai,ZHONG Xigen,YANG Cuiru.Behavior ofin-filled frame under cyclic loading[J].Journal ofBuilding Structures,1981,2(2):34-43.(in Chinese))
[3]童岳生,钱国芳,梁兴文,郭滨华.砖填充墙钢筋混凝土框架的刚度及其应用[J].西安冶金建筑学院学报,1985,17(4):21-35.(Tong Yuesheng,QianGuofang,Liang Xingwen,Guo Binhua.The stiffness ofbrick reinforced concrete frame and its application[J].Journal of Xi’an Institute of Metallurgy andConstruction Engineering,1985,17(4):21-35.(inChinese))
[4]童岳生,钱国芳.砖填充墙钢筋混凝土框架的变形性能及承载能力[J].西安冶金建筑学院学报,1985,17(2):1-21.(Tong Yuesheng,Qian Guofang.Deformation behavior and load capacity of reinforcedconcrete frames with brick filler walls[J].Journal ofXi’an Institute of Metallurgy and ConstructionEngineering,1985,17(2):1-21.(in Chinese))
[5]吴绮芸,田家弊,徐显毅.砖墙填充框架在单向及反复水平荷载作用下的性能研究[J].建筑结构学报,1980,1(1):38-44.(WU Yiyun,TIAN Jiabi,XU Xianyi.A study on the behavior of brick in-filledframe structures under monotonic and reversed cyclichorizontal loads[J].Journal of Building Structures,1980,1(1):38-44.(in Chinese))
[6]Mallick D V,Seven R T.The behavior of infilledframes under static loading[C]//Proceedings of theInstitution of Civil Engineers.London:Institution ofCivil Engineers,1967,38(4):639-656.
[7]Fiorato A E,Sozen M A,Camble W L.Aninvestigation of the interaction of reinforced concreteframes with masonry fillers walls[R].Urbana,IL:CivilEngineering Studies,University of Illinois,1970:525.
[8]Govindan P,Lakshmipathy M,Santhakunmar A R.Ductility of in-filled frames[J].ACI Structure Journal,1986,83(5):567-576.
[9]Schneider S P,Zagers B R,Abrams D P.Lateralstrength of steel frames with masonry infills having largeopenings[J].Journal of Structural Engineering,1998,124(8):896-904.
[10]Chaker A A,Cherifati A.Influence of masonry infillpanels on the vibration and stiffness characteristics ofR/C frame buildings[J].Earthquake Engineering andStructural Dynamics,1999,28(10):1061-1065.
[11]Ghassan A C,Mohsen L,Steven S.Behavior ofmasonry in-filled nonductile reinforced concrete frames[J].ACI Structure Journal,2002,136(4):347-356.
[12]Henderson R C,Fricke K E,Jones W D,et al.Summary of a large-and small-scale unreinforcedmasonry infill test program[J].Journal of StructuralEngineering,2003,129(12):1667-1675.
[13]Armin B,Mehrabi P,Benson Shing,et al.Experimental evaluation of masonry in-filled reinforcedconcrete frames[J].Journal of Structural Engineering,1996,122(3):228-237.
[14]杨亮.砌体填充墙框架结构的抗震性能试验研究与非线性分析[D].苏州:苏州科技学院,2010:75.(Yang Liang.Experimental study on seismic behaviorand nonlinear analysis of masonry in-filled RC framesstructure[D].Suzhou:Suzhou University of Scienceand Technology,2010:75.(in Chinese))
[15]郭子雄,吴毅彬,黄群贤.砌体填充墙框架结构抗震性能研究现状与展望[J].地震工程与工程震动,2008,28(6):172-177.(Guo Zixiong,Wu Yibin,Huang Qunxian.Research and development in seismicbehavior of in-filled frame structures[J].Journal ofEarthquake Engineering and Engineering Vibration,2008,28(6):172-177.(in Chinese))
[16]郭子雄,黄群贤,魏荣丰,等.填充墙不规则布置对RC框架抗震性能影响试验研究[J].土木工程学报,2010,43(11):46-54.(Guo Zixiong,Huang Qunxian,Wei Rongfeng,et al.Experimental study on seismicbehavior of reinforced concrete frames in-filled withmasonry walls irregularly[J].China Civil EngineeringJournal,2010,43(11):46-54.(in Chinese))
[17]周振轶.多层砌体填充墙框架结构抗震性能试验研究和理论分析[D].苏州:苏州科技学院,2010:68.(Zhou Zhenyi.Experimental study on seismic behaviorand theoretical analysis of multi-storey reinforcedconcrete frame structure with masonry filler wall[D].Suzhou:Suzhou University of Science and Technology,2010:68.(in Chinese))
[18]刘利花.柔性连接砌体填充墙框架结构的抗震性能试验研究和非线性分析[D].苏州:苏州科技学院,2010:85.(Liu Lihua.Experimental study on seismicbehavior and nonlinear analysis of flexible connectioninfill wall frame structure[D].Suzhou:SuzhouUniversity of Science and Technology,2010:85.(inChinese))
[2]刘大海,钟锡根,杨翠如.砖填充墙框架房屋的地震内力分析[J].建筑结构学报,1981,2(2):34-43.(LIU Dahai,ZHONG Xigen,YANG Cuiru.Behavior ofin-filled frame under cyclic loading[J].Journal ofBuilding Structures,1981,2(2):34-43.(in Chinese))
[3]童岳生,钱国芳,梁兴文,郭滨华.砖填充墙钢筋混凝土框架的刚度及其应用[J].西安冶金建筑学院学报,1985,17(4):21-35.(Tong Yuesheng,QianGuofang,Liang Xingwen,Guo Binhua.The stiffness ofbrick reinforced concrete frame and its application[J].Journal of Xi’an Institute of Metallurgy andConstruction Engineering,1985,17(4):21-35.(inChinese))
[4]童岳生,钱国芳.砖填充墙钢筋混凝土框架的变形性能及承载能力[J].西安冶金建筑学院学报,1985,17(2):1-21.(Tong Yuesheng,Qian Guofang.Deformation behavior and load capacity of reinforcedconcrete frames with brick filler walls[J].Journal ofXi’an Institute of Metallurgy and ConstructionEngineering,1985,17(2):1-21.(in Chinese))
[5]吴绮芸,田家弊,徐显毅.砖墙填充框架在单向及反复水平荷载作用下的性能研究[J].建筑结构学报,1980,1(1):38-44.(WU Yiyun,TIAN Jiabi,XU Xianyi.A study on the behavior of brick in-filledframe structures under monotonic and reversed cyclichorizontal loads[J].Journal of Building Structures,1980,1(1):38-44.(in Chinese))
[6]Mallick D V,Seven R T.The behavior of infilledframes under static loading[C]//Proceedings of theInstitution of Civil Engineers.London:Institution ofCivil Engineers,1967,38(4):639-656.
[7]Fiorato A E,Sozen M A,Camble W L.Aninvestigation of the interaction of reinforced concreteframes with masonry fillers walls[R].Urbana,IL:CivilEngineering Studies,University of Illinois,1970:525.
[8]Govindan P,Lakshmipathy M,Santhakunmar A R.Ductility of in-filled frames[J].ACI Structure Journal,1986,83(5):567-576.
[9]Schneider S P,Zagers B R,Abrams D P.Lateralstrength of steel frames with masonry infills having largeopenings[J].Journal of Structural Engineering,1998,124(8):896-904.
[10]Chaker A A,Cherifati A.Influence of masonry infillpanels on the vibration and stiffness characteristics ofR/C frame buildings[J].Earthquake Engineering andStructural Dynamics,1999,28(10):1061-1065.
[11]Ghassan A C,Mohsen L,Steven S.Behavior ofmasonry in-filled nonductile reinforced concrete frames[J].ACI Structure Journal,2002,136(4):347-356.
[12]Henderson R C,Fricke K E,Jones W D,et al.Summary of a large-and small-scale unreinforcedmasonry infill test program[J].Journal of StructuralEngineering,2003,129(12):1667-1675.
[13]Armin B,Mehrabi P,Benson Shing,et al.Experimental evaluation of masonry in-filled reinforcedconcrete frames[J].Journal of Structural Engineering,1996,122(3):228-237.
[14]杨亮.砌体填充墙框架结构的抗震性能试验研究与非线性分析[D].苏州:苏州科技学院,2010:75.(Yang Liang.Experimental study on seismic behaviorand nonlinear analysis of masonry in-filled RC framesstructure[D].Suzhou:Suzhou University of Scienceand Technology,2010:75.(in Chinese))
[15]郭子雄,吴毅彬,黄群贤.砌体填充墙框架结构抗震性能研究现状与展望[J].地震工程与工程震动,2008,28(6):172-177.(Guo Zixiong,Wu Yibin,Huang Qunxian.Research and development in seismicbehavior of in-filled frame structures[J].Journal ofEarthquake Engineering and Engineering Vibration,2008,28(6):172-177.(in Chinese))
[16]郭子雄,黄群贤,魏荣丰,等.填充墙不规则布置对RC框架抗震性能影响试验研究[J].土木工程学报,2010,43(11):46-54.(Guo Zixiong,Huang Qunxian,Wei Rongfeng,et al.Experimental study on seismicbehavior of reinforced concrete frames in-filled withmasonry walls irregularly[J].China Civil EngineeringJournal,2010,43(11):46-54.(in Chinese))
[17]周振轶.多层砌体填充墙框架结构抗震性能试验研究和理论分析[D].苏州:苏州科技学院,2010:68.(Zhou Zhenyi.Experimental study on seismic behaviorand theoretical analysis of multi-storey reinforcedconcrete frame structure with masonry filler wall[D].Suzhou:Suzhou University of Science and Technology,2010:68.(in Chinese))
[18]刘利花.柔性连接砌体填充墙框架结构的抗震性能试验研究和非线性分析[D].苏州:苏州科技学院,2010:85.(Liu Lihua.Experimental study on seismicbehavior and nonlinear analysis of flexible connectioninfill wall frame structure[D].Suzhou:SuzhouUniversity of Science and Technology,2010:85.(inChinese))
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