高強(qiáng)鋼筋高強(qiáng)混凝土連梁抗震試驗(yàn)及非線性有限元分析*
丁永君1,于敬海1,付春兵2,李端2,徐紅茂2,曹劍鋒2
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（1 天津大學(xué)建筑設(shè)計(jì)規(guī)劃研究總院， 天津 300072； 2 天津大學(xué)建筑工程學(xué)院， 天津 300072）
［摘要］對(duì)3個(gè)三層1/4縮尺比的高強(qiáng)鋼筋高強(qiáng)混凝土雙肢剪力墻進(jìn)行了低周往復(fù)試驗(yàn)，并采用ABAQUS軟件對(duì)其進(jìn)行了非線性有限元彈塑性分析，得到了雙連梁在彈塑性階段的內(nèi)力以及其變化規(guī)律。結(jié)果表明，有限元分析結(jié)果與試驗(yàn)結(jié)果吻合良好，表明高強(qiáng)鋼筋高強(qiáng)混凝土雙肢剪力墻具有一定的抗震性能；增加連梁跨高比可以避免連梁發(fā)生剪切破壞，進(jìn)而增加連梁的延性；與單連梁相比，雙連梁具有更好的延性和耗能能力。［關(guān)鍵詞］高強(qiáng)鋼筋； 雙肢剪力墻； HRB500鋼筋； 雙連梁； 拉伸硬化中圖分類號(hào)：TU398.2 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1002-848X(2015)12-0001-06
Seismic behavior experiment and nonlinear finite element analysis on coupling beam with high strength rebar and concreteDing Yongjun1, Yu Jinghai1, Fu Chunbing2, Li Duan2, Xu Hongmao2, Cao Jianfeng2(1 Tianjin University Research Institute of Architecture Design and Urban Planning, Tianjin 300072, China; 2 School of Civil Engineering, Tianjin University, Tianjin 300072, China)Abstract:Low cyclic experiments were carried out on three 1/4 scale 3-storey coupled shear walls with high strength rebar and concrete. The nonlinear finite element elasticplastic analyses were carried on the three models using the software of ABAQUS to obtain the internal forces and change laws of the double coupling beams in elastic-plastic stage. The results show that the finite element analyses results are in good agreement with the experimental results, which proves that the coupled shear wall with high strength rebar and concrete has definite seismic performance. Increasing the span-depth ratio of coupling beam can avoid shear failure and increase the ductility. Compared with the structure of single coupling beam, ductility and energy dissipation ability of the double coupling beams structure are better.Keywords:high strength rebar; coupled shear wall; HRB500 rebar; double coupling beam; tension stiffening
*天津市建交委科技項(xiàng)目（2012-2）。作者簡(jiǎn)介：丁永君，碩士，研究員，高級(jí)工程師，Email:tju_yj@163.com。
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