超高砌体墙加固有限元分析  

Finite element analysis of ultra-high masonry wall reinforcement

作　　者：王世光 梁汝鸣 刘洋 葛序尧 付少帅 WANG Shiguang;LIANG Ruming;LIU Yang;GE Xuyao;FU Shaoshuai(China Construction Eighth Bureau No.2 Construction Co.,Ltd.,Jinan 250014,China)

机构地区：[1]中建八局第二建设有限公司,济南250014

出　　处：《建筑结构》2022年第S01期2132-2136,共5页Building Structure

摘　　要：文中对某项目的超高砌体墙加固工程采用三种加固方法:1)增设构造柱加固;2)增设构造柱+钢板加固;3)增设构造柱+钢丝网加固;另以原纯砌体墙模型作为参照模型,利用ABAQUS软件分别对这三种加固方法进行有限元建模分析,结果发现:1)原纯砌体墙在水平力作用下为脆性破坏,无法满足要求;2)增设构造柱加固的墙体在水平力作用下为延性破坏,显示了极好的延性;3)增设构造柱+钢板加固的墙体,在水平力作用下为延性破坏,但对墙体的抗剪能力提高有限;4)增设构造柱+钢丝网加固的墙体,在水平力作用下为延性破坏,并且抗剪承载力较好,远大于方法一的加固效果。综上所述,增设构造柱+钢丝网的加固方法效果最好、施工方便,具有良好的经济效益。This paper adopts three masonry structure reinforcement methods in a ultra-high masonry wall project.The three methods are as follows:1)adding structural columns for reinforcement;2)adding structural column and steel plate;3)adding structural column and steel reinforcement mesh;In addition,we take the pure block model as the reference model.Then,by using ABAQUS,we conduct the finite element analysis of these three models respectively and find that:under the action of horizontal force:1)the initial pure block wall is brittle failure,which cannot meet the requirements;2)the wall with additional structural columns is ductile failure,which shows high ductility;3)the wall strengthened with structural column and steel plate is ductile failure but with the limited improvement of shear capacity;4)the wall strengthened with structural column and steel reinforcement mesh is ductile failure,and has a stronger shear capacity,which is better than method 1.To sum up,the method of adding structural column and steel wire mesh is the best practice,which is convenient to construct and has good economic benefits.

关 键 词：超高砌体墙 钢丝网加固 延性破坏 抗剪能力 有限元分析 

分 类 号：TU364[建筑科学—结构工程]