摘要
为了改善某不规则钢框架结构房屋的抗震性能,采用局部增设钢支撑对其进行抗震加固。利用SAP2000软件建立空间模型,对该钢框架结构房屋按现状及抗震加固后两种工况进行静力弹塑性分析,探究其在不同水平力加载方式下的抗震能力,研究结构的塑性铰的发展和分布等。分析研究表明,结构加固方案是有效的,为类似工程的抗震加固提供参考。
In order to improve the anti-seismic performance of a steel frame structure building with shape abnomality,the additional support was used to for anti-seismic strengthening.The SAP2000 software was used to construct a numerical model for this building.Push-over analyses for the structure with and without the strengthening measure were performed to study the seismic behavior of the structure under different lateral loading.Plastic hinges were exmined and the result shows that the structural retrofit is effective.The strengthening scheme described in this paper can provide the references for the anti-seismic strengthening in similar engineering works.
出处
《结构工程师》
北大核心
2013年第5期67-73,共7页
Structural Engineers
关键词
不规则钢框架
抗震性能
抗震加固
静力弹塑性分析
irregular steel frame
seismic performance
seismic strengthening
push-over analysis
