新型混凝土砌块填充墙平面外稳定性研究
|
摘要
通过模拟地震振动台试验,研究了新型节能混凝土空心砌块填充墙的平面外稳定性能。针对填充墙与框架梁、柱之间的不同连接构造方式,共进行了4片墙体试验,对墙片的加速度反应、位移反应和应变进行了分析。结果表明,填充墙与框架柱之间采用脱开的构造方式虽然能够满足"小震不坏,中震可修"的要求,但是在强震作用下,填充墙很容易发生平面外的倒塌;在拉结筋设置合理的前提下,与框架梁采用拉结筋连接的填充墙其平面外抗震性比采取顶部斜砌顶紧墙片要好;与框架梁、柱均采用拉结筋连接的填充墙,其平面外稳定性比其它连接方式要好,只要拉结筋设置合理,能够满足规范规定的平面外抗震要求。
The out-of-plane stability of new concrete block infill wall was studied through the earthquake vibrating platform simulation test.Aiming at the different connection styles between infill walls and columns or beams of the frame,four walls were tested and the reaction to the acceleration speed,reaction to the displacement of the walls was analyzed.The results shows that if there is no connection between walls and frame columns,it can satisfy "No damage in small-scale earthquake and repairable in medium-scale earthquake",but in strong earthquake,it can easily result in out-of-plane collapse;the wall which connected by rebars with the beam has better performance than the wall with inclined bricks at the top if the setting of the rebars is reasonable.The walls which connected with the beams and columns by rebars behave better than other connection methods on out-of-plane performance,and can satisfy the requirements of anti-earthquake at out-of-plane.
The out-of-plane stability of new concrete block infill wall was studied through the earthquake vibrating platform simulation test.Aiming at the different connection styles between infill walls and columns or beams of the frame,four walls were tested and the reaction to the acceleration speed,reaction to the displacement of the walls was analyzed.The results shows that if there is no connection between walls and frame columns,it can satisfy "No damage in small-scale earthquake and repairable in medium-scale earthquake",but in strong earthquake,it can easily result in out-of-plane collapse;the wall which connected by rebars with the beam has better performance than the wall with inclined bricks at the top if the setting of the rebars is reasonable.The walls which connected with the beams and columns by rebars behave better than other connection methods on out-of-plane performance,and can satisfy the requirements of anti-earthquake at out-of-plane.
引文
[1]Dafnis A,Kolsch H,Reimerdes H G.Arching in masonry wallssubjected to earthquake motions[J].Journal of Structural-Enginee-ring,2002,128(2):153-159.
[2]林皋,朱彤,林蓓.结构动力模型试验的相似技巧[J].大连理工大学学报,2000,40(1):11-17.
[3]邱法维.结构抗震试验方法[M].北京:地震出版社,2000.
[4]李国强,周向明,丁翔.高层建筑钢-混凝土混和结构模型模拟地震振动台试验研究[J].建筑结构学报,2001,22(2):2-7.
[5]石启印,李爱群,杜东升,等.高耸钢筋混凝土-钢框架组合结构整体模型抗震实验研究[J].实验力学,2003,18(2):240-245.
[6]JGJ101—96,建筑抗震试验方法规程[S].
[2]林皋,朱彤,林蓓.结构动力模型试验的相似技巧[J].大连理工大学学报,2000,40(1):11-17.
[3]邱法维.结构抗震试验方法[M].北京:地震出版社,2000.
[4]李国强,周向明,丁翔.高层建筑钢-混凝土混和结构模型模拟地震振动台试验研究[J].建筑结构学报,2001,22(2):2-7.
[5]石启印,李爱群,杜东升,等.高耸钢筋混凝土-钢框架组合结构整体模型抗震实验研究[J].实验力学,2003,18(2):240-245.
[6]JGJ101—96,建筑抗震试验方法规程[S].
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