摘要
为研究装配式混凝土框架-填充墙的力学性能,以填充墙高宽比、厚度,墙-柱拉结钢筋和墙-梁拉结钢筋数量等参数为变量对装配式混凝土框架进行有限元分析,通过荷载-位移曲线和裂缝发展变化对有限元模型的计算结果进行了标定。分析结果表明:有限元计算结果与试验结果吻合性良好,误差控制在15%以内;随着填充墙高宽比减小、填充墙厚度增加,框架刚度增大;随着墙-柱拉结钢筋连接中配筋率和布置间距增大,结构延性提高;墙-梁拉结钢筋数量的减少会减小结构的延性。
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.
作者
王薇
张长浩
刘乐招
Wang Wei;Zhang Changhao;Liu Lezhao(Tong Yuan Design Group Co.,Ltd.,Jinan 250101,China;College of Science,Chang’an University,Xi'an 710064,China;Department of Architecture,Jinan City Planning and Design Institute,Jinan 250101,China;College of CivilEngineering,Hunan University,Changsha 410082,China)
出处
《建筑结构》
CSCD
北大核心
2019年第13期114-119,共6页
Building Structure
关键词
装配式混凝土
框架-填充墙
有限元分析
影响因素
precast concrete
frame infilled wall
finite element analysis
influence factor
