作　　者： ; ;

机构地区： 兰州理工大学土木工程学院西部土木工程防灾减灾教育部工程研究中心

出　　处： 《工程抗震与加固改造》 2011年第1期38-42,共5页

摘　　要： 填充墙对框架结构抗震性能的影响具有两面性:一方面,填充墙的存在增加了结构的总刚度,提高了作用在结构上的地震力;另一方面,填充墙的存在又从某种程度上成为耗散地震能量的第一道防线。如何协调两者的能力,使填充墙的耗能能力更强一些,使填充墙成为协助框架结构耗能减震的辅助元件,是研究人员一直感兴趣的问题。针对砌体结构房屋抗震的需要,本文提出了在砌体墙片中增加交叉斜拉钢筋加固的方案。5.12地震发生后,根据进一步观察填充墙在地震中的表现,并对交叉斜拉筋加固砌体的方案做了改进,使其在保持造价低廉、安装方便的前提下,提高填充墙的抗倒塌和耗能能力。本文就这一体系进行了数值模拟分析,结果表明这种简易装置有助于提高填充墙体的耗能能力。 The influences of infilled walls on structural seismic capacity have dual characters,（1） infilled walls increase the rigid and earthquake force on structure;（2） on a certain degree,infilled walls become the first defendant line to consume seismic energy.Infilled walls become an auxiliary element for frame structure passive energy dissipation.It is always an important problem that coordinates the ability of them and strengthens the energy-dissipating capacity.The seismic of masonry structure has been researched and a method that using cross diagonal steel strengthen masonry structure has been proposed.Through further observation and thinking after 5.12 earthquake occurrence,the mean of cross diagonal steel is improved.Considering low cost and convenient installation,the ability of anti-collapse and dissipation of infilled walls can be advanced by this method.The numerical simulation is used to analysis this system,and the results show the device can improve energy-dissipating capacity of infilled wall.

关 键 词： 抗震加固 耗能减震 填充墙框架结构 斜拉筋 有限元

领　　域： [建筑科学]