砌体砖墙抗震加固效果的有限元分析*
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(1 浙江工业大学建筑规划设计研究院有限公司， 杭州 310014； 2 浙江工业大学建筑工程学院， 杭州 310014)[摘要] 本文以砌体砖墙的斜拉筋加固、钢筋网加固以及粘贴碳纤维布加固为研究对象，根据加固方式的不同运用ANSYS有限元软件建立了5片墙体模型，进行了模拟低周反复加载，得到了各模型的滞回曲线、墙体应力云图、加固钢筋和碳纤维布应力分布及砖墙破坏情况等。分析计算结果表明，三种加固方式均可有效提高墙体抗剪承载力，延缓墙体开裂，其中斜拉钢筋强度利用率最高且钢筋用量更经济，效果较好。[关键词] 砌体砖墙; 斜拉筋加固; 碳纤维布加固; 有限元分析中图分类号：TU375.6 文献标志码：A 文章编号：1002-848X(2013)S2-0693-04*浙江省科技厅公益性项目（2012C23059）支助项目。作者简历：章雪峰，硕士，一级注册结构工程师，Email：zhangxue_feng@126.com。Finite element analysis of reinforcement effect of masonry wallZhang Xuefeng1, Jin Cheng1, Yang Junjie2, Xia Zhangping2,(1 Architectural and Planning Design & Research institute Co. , Ltd. , Zhejiang University of Technology, Hangzhou 310014, China; 2 College of Civil Engineering, Zhejiang University of Technology, Hangzhou 310014, China)Abstract: This paper analyzes the cable-stayed steel reinforcement, steel mesh reinforcement and carbon fiber reinforcement for masonry wall by finite element method, sets up and analyzes five finite element models under the low cyclic loading test by the ANSYS software. Through the hysteresis curve, distortion of stress and the crack distribution of the finite element models, we observed that these reinforcement methods can effectively increase the shear bearing capacity and ductility of the masonry wall, and the cable-stayed steel reinforcement is the most efficient and economic method.Keywords: masonry wall; cable-stayed steel reinforcement; carbon fiber reinforcement; FEM analysis
