砌體磚墻抗震加固效果的有限元分析*
章雪峰1 ，金 成1， 楊俊杰2， 夏章平2
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(1 浙江工業(yè)大學(xué)建筑規(guī)劃設(shè)計(jì)研究院有限公司， 杭州 310014； 2 浙江工業(yè)大學(xué)建筑工程學(xué)院， 杭州 310014)[摘要] 本文以砌體磚墻的斜拉筋加固、鋼筋網(wǎng)加固以及粘貼碳纖維布加固為研究對(duì)象，根據(jù)加固方式的不同運(yùn)用ANSYS有限元軟件建立了5片墻體模型，進(jìn)行了模擬低周反復(fù)加載，得到了各模型的滯回曲線、墻體應(yīng)力云圖、加固鋼筋和碳纖維布應(yīng)力分布及磚墻破壞情況等。分析計(jì)算結(jié)果表明，三種加固方式均可有效提高墻體抗剪承載力，延緩墻體開裂，其中斜拉鋼筋強(qiáng)度利用率最高且鋼筋用量更經(jīng)濟(jì)，效果較好。[關(guān)鍵詞] 砌體磚墻; 斜拉筋加固; 碳纖維布加固; 有限元分析中圖分類號(hào)：TU375.6 文獻(xiàn)標(biāo)志碼：A 文章編號(hào)：1002-848X(2013)S2-0693-04*浙江省科技廳公益性項(xiàng)目（2012C23059）支助項(xiàng)目。作者簡(jiǎn)歷：章雪峰，碩士，一級(jí)注冊(cè)結(jié)構(gòu)工程師，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
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