内构造柱加固砌体墙抗震性能有限元分析  

Finite Element Analysis for Seismic Performances of Unreinforced Masonry Walls Strengthened with Inside Structural Column

作　　者：刘富君[1] 朱玉华[1] 马晓辉[1] 

机构地区：[1]同济大学建筑工程系,上海200092

出　　处：《结构工程师》2011年第3期62-66,共5页Structural Engineers

摘　　要：介绍了内构造柱抗震加固砌体墙的方法,采用大型有限元软件ABAQUS6.6,对单调水平荷载下,内构造柱加固墙体的受力性能进行了有限元分析,并将其与外构造柱加固墙体及未加固砌体墙的受力性能进行了对比分析。分析表明,虽然加固后墙体的抗剪承载力提高得并不显著,但加固后墙体的延性系数却显著提高了,其中内构造柱加固墙体延性系数比未加固墙体提高了121.1%,比外构造柱加固墙体提高了26.6%。这种新的加固方法能显著提高砌体墙的抗震性能,具有好的工程应用意义。A new seismic strengthening approach,involving the adoption of inside structural columns,is proposed in this paper for the strengthening of unreinforced brickwork masonry walls.Mechanical behaviors of unreinforced brickwork masonry walls strengthened with the new approach,subjected to in-plane lateral monotonic loads,are analyzed using finite element software ABAQUS6.6.The results of the analysis show that the ductility factor of the wall strengthened with the new approach increased by 121.1% and 26.6% compared with the original wall and the wall strengthened with the traditional approach,respectively,which validated the new approach in the seismic performance point of view.In conclusion,this new seismic strengthening approach for unreinforced masonry walls proposed in this paper is good and feasible in practical application.

关 键 词：抗震加固 砌体墙 构造柱 受力性能 有限元 

分 类 号：TU364[建筑科学—结构工程] TU352.11