- 摘 要
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(1 同圓設(shè)計(jì)集團(tuán)有限公司, 濟(jì)南 250101; 2 長安大學(xué)理學(xué)院, 西安 710064; 3 濟(jì)南市規(guī)劃設(shè)計(jì)研究院建筑分院, 濟(jì)南 250101; 4 湖南大學(xué)土木工程學(xué)院, 長沙 410082)
[摘要]為研究裝配式混凝土框架-填充墻的力學(xué)性能,以填充墻高寬比、厚度,墻-柱拉結(jié)鋼筋和墻-梁拉結(jié)鋼筋數(shù)量等參數(shù)為變量對(duì)裝配式混凝土框架進(jìn)行有限元分析,通過荷載-位移曲線和裂縫發(fā)展變化對(duì)有限元模型的計(jì)算結(jié)果進(jìn)行了標(biāo)定。分析結(jié)果表明:有限元計(jì)算結(jié)果與試驗(yàn)結(jié)果吻合性良好,誤差控制在15%以內(nèi);隨著填充墻高寬比減小、填充墻厚度增加,框架剛度增大;隨著墻-柱拉結(jié)鋼筋連接中配筋率和布置間距增大,結(jié)構(gòu)延性提高;墻-梁拉結(jié)鋼筋數(shù)量的減少會(huì)減小結(jié)構(gòu)的延性。
[關(guān)鍵詞]裝配式混凝土; 框架\|填充墻; 有限元分析; 影響因素
中圖分類號(hào):TU375-4文獻(xiàn)標(biāo)識(shí)碼:A文章編號(hào):1002-848X(2019)13-0114-06
Analysis of influencing factors of mechanical properties of precast concrete frame infilled wall
Wang Wei1, Zhang Changhao2,3, Liu Lezhao4
(1 Tong Yuan Design Group Co., Ltd., Jinan 250101, China; 2 College of Science, Chang′an University, Xi′an 710064, China; 3 Department of Architecture, Jinan City Planning and Design Institute, Jinan 250101, China; 4 College of Civil Engineering, Hunan University, Changsha 410082, China)
Abstract:In order to study the mechanical properties of precast concrete frame infilled wall, finite element analysis of precast concrete frame was carried out by taking the ratio of height to width, thickness of infilled wall, number of wall-column and wall-beam reinforcement as parameter variables. The results of finite element model were calibrated by load-displacement curve and crack development. The analysis results show that the finite element calculation results are in good agreement with the test results, and the error control is within 15%. As the ratio of height to width of the infilled wall decreases and the thickness of the infilled wall increases, the stiffness of the frame increases. The structure ductility increases with the increase of reinforcement ratio and spacing increase in the reinforcement of the wall-column. The decrease of the number of steel bars in the wall-beam will reduce the ductility of the structure.
Keywords:precast concrete; frame infilled wall; finite element analysis; influence factor
作者簡介:王薇,碩士,工程師,Email: tyjsjtww@163.com。
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