单层足尺砖混结构的拟动力试验及分析
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摘要
建立了一个单开间带圈梁构造柱的砖混结构足尺模型,应用拟动力试验技术,模拟了一个单层十开间砖混结构在地震作用下的反应;观测了结构在荷载作用下的破坏过程;编制了结构地震反应分析程序进行结构位移反应计算,并将计算结果与试验结果对比;采用现有的一些理论公式计算结构极限承载力,并与试验结果进行比较。结果表明:增设圈梁构造柱的该类单层砖混结构具有非常强的抗震性能,可以抵御地震动峰值加速度为1.6g的地震作用;设置圈梁构造柱结构的极限承载力比未设置圈梁构造柱结构的提高了20%～50%;增设抗震构造可以明显提高砌体结构的抗震性能.
A full-scale model of a one-bay masonry structure with ring beams and tie columns was established.Then,the seismic response of a single-storey ten-bay masonry structure was simulated by pseudo-dynamic tests,and the failure process of the specimen under loads was observed.Moreover,a seismic response analysis program for the test model was compiled to calculate the structural displacement response,and the results were compared with the test ones.Finally,the theoretical bearing capacity of the test structure was calculated by using different analytic equations,and the results were also compared with the test ones.It is found that(1) the structure as a prototype of the test model with ring beams and tie columns,which can withstand the seismic excitation with a peak ground acceleration of 1.6 g,exhibits satisfactory seismic behavior;(2) the maximum bearing capacity of the structure with ring beams and tie columns increases by 20%~50%;and(3) the details of seismic design are helpful in improving the seismic behavior of masonry structures.
A full-scale model of a one-bay masonry structure with ring beams and tie columns was established.Then,the seismic response of a single-storey ten-bay masonry structure was simulated by pseudo-dynamic tests,and the failure process of the specimen under loads was observed.Moreover,a seismic response analysis program for the test model was compiled to calculate the structural displacement response,and the results were compared with the test ones.Finally,the theoretical bearing capacity of the test structure was calculated by using different analytic equations,and the results were also compared with the test ones.It is found that(1) the structure as a prototype of the test model with ring beams and tie columns,which can withstand the seismic excitation with a peak ground acceleration of 1.6 g,exhibits satisfactory seismic behavior;(2) the maximum bearing capacity of the structure with ring beams and tie columns increases by 20%~50%;and(3) the details of seismic design are helpful in improving the seismic behavior of masonry structures.
引文
[1]GB50011—2010,建筑抗震设计规范[S].
[2]刘锡荟,张鸿熙,刘经纬,等.用钢筋混凝土构造柱加强砖房抗震性能的研究[J].建筑结构学报,1981,2(6):47-55.Liu Xi-hui,Zhang Hong-xi,Liu Jing-wei,et al.A study ofaseismic characteristics of masonry building with rein-forced concrete tie-columns[J].Building Structures,1981,2(6):47-55.
[3]TomazevicM,Klemenc Iztok.Seismic behavior of confinedmasonry walls[J].Earthquake Engineering and StructuralDynamics,1997,26(10):1059-1071.
[4]Kenneth A Gent Franch,Gian M Giuliano Morbelli,Maxi-miliano A Astroza Inostroza,et al.A seismic vulnerabilityindex for confined masonry shear wall buildings and a re-lationship with the damage[J].Engineering Structures,2008,30(10):2605-2612.
[5]Bourzam Abdelkrim,Goto Tetsuro,Miyajima Masakatsu.Shear capacity prediction of confined masonry walls sub-jected to cyclic lateral loading[J].Structural Eng.Earth-quake Eng,2008,25(2):692-704.
[6]邬瑞锋,吕和祥,奚肖凤.具有构造柱墙体弹塑性、开裂、裂缝开展的分析[J].大连工学院学报,1979,18(1):60-72.Wu Rui-feng,LüHe-xiang,Xi Xiao-feng.Elasto-plasticanalysis and crack growth analysis of reinforced masonryshear wall[J].Journal of Dalian University of Technolo-gy,1979,18(1):60-72.
[7]夏敬谦,黄泉生.构造柱与配筋砌体房屋抗震能力的试验研究[J].地震工程与工程振动,1989,9(2):82-96.Xia Jing-qian,Huang Quan-sheng.Model test of brick ma-sonry building strengthened with rc tie columns[J].Earthquake Engineering and Engineering Vibration,1989,9(2):82-96.
[8]Paquette Jocelyn,Bruneau Michel.Pseudo-dynamic testingof unreinforced masonry building with flexible diaphragmand comparison with existing procedures[J].Construc-tion and Building Materials,2006,20(4):220-228.
[9]Kazemi M T,Hoseinzadeh Asl M,Bakhshi A,et al.Sha-king table study of a full-scale single storey confined brickmasonry building[J].Transaction A:Civil Engineering,2010,17(3):184-193.
[10]San BartoloméA,Delgado E,Quiun D.Seismic behaviorof a two story model of confined adobe masonry[C]∥Wael W.El-Dakhakhni,Robert G.Drysdale.Proceedings11th Canadian Masonry Symposium.Toronto:McMasterUniversity,2009.
[11]谭晓晶,吴斌.砖混结构足尺模型的子结构拟动力试验[C]∥土木工程结构试验研究及教学最新进展.上海:同济大学出版社,2011:190-194.
[12]李志鹏.隔震砌体结构的抗震性能分析[D].哈尔滨:哈尔滨工业大学土木工程学院,2009.
[13]GB50003—2001,砌体结构设计规范[S].
[2]刘锡荟,张鸿熙,刘经纬,等.用钢筋混凝土构造柱加强砖房抗震性能的研究[J].建筑结构学报,1981,2(6):47-55.Liu Xi-hui,Zhang Hong-xi,Liu Jing-wei,et al.A study ofaseismic characteristics of masonry building with rein-forced concrete tie-columns[J].Building Structures,1981,2(6):47-55.
[3]TomazevicM,Klemenc Iztok.Seismic behavior of confinedmasonry walls[J].Earthquake Engineering and StructuralDynamics,1997,26(10):1059-1071.
[4]Kenneth A Gent Franch,Gian M Giuliano Morbelli,Maxi-miliano A Astroza Inostroza,et al.A seismic vulnerabilityindex for confined masonry shear wall buildings and a re-lationship with the damage[J].Engineering Structures,2008,30(10):2605-2612.
[5]Bourzam Abdelkrim,Goto Tetsuro,Miyajima Masakatsu.Shear capacity prediction of confined masonry walls sub-jected to cyclic lateral loading[J].Structural Eng.Earth-quake Eng,2008,25(2):692-704.
[6]邬瑞锋,吕和祥,奚肖凤.具有构造柱墙体弹塑性、开裂、裂缝开展的分析[J].大连工学院学报,1979,18(1):60-72.Wu Rui-feng,LüHe-xiang,Xi Xiao-feng.Elasto-plasticanalysis and crack growth analysis of reinforced masonryshear wall[J].Journal of Dalian University of Technolo-gy,1979,18(1):60-72.
[7]夏敬谦,黄泉生.构造柱与配筋砌体房屋抗震能力的试验研究[J].地震工程与工程振动,1989,9(2):82-96.Xia Jing-qian,Huang Quan-sheng.Model test of brick ma-sonry building strengthened with rc tie columns[J].Earthquake Engineering and Engineering Vibration,1989,9(2):82-96.
[8]Paquette Jocelyn,Bruneau Michel.Pseudo-dynamic testingof unreinforced masonry building with flexible diaphragmand comparison with existing procedures[J].Construc-tion and Building Materials,2006,20(4):220-228.
[9]Kazemi M T,Hoseinzadeh Asl M,Bakhshi A,et al.Sha-king table study of a full-scale single storey confined brickmasonry building[J].Transaction A:Civil Engineering,2010,17(3):184-193.
[10]San BartoloméA,Delgado E,Quiun D.Seismic behaviorof a two story model of confined adobe masonry[C]∥Wael W.El-Dakhakhni,Robert G.Drysdale.Proceedings11th Canadian Masonry Symposium.Toronto:McMasterUniversity,2009.
[11]谭晓晶,吴斌.砖混结构足尺模型的子结构拟动力试验[C]∥土木工程结构试验研究及教学最新进展.上海:同济大学出版社,2011:190-194.
[12]李志鹏.隔震砌体结构的抗震性能分析[D].哈尔滨:哈尔滨工业大学土木工程学院,2009.
[13]GB50003—2001,砌体结构设计规范[S].
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