基于变角空间桁架理论的钢筋混凝土构件抗扭承载力分析  

ANALYSIS OF TORSIONAL CAPACITY OF REINFORCED CONCRETE MEMBER BASED ON VARIABLE-ANGLE SPACE TRUSS THEORY

作　　者：郑耒娟 叶英华[1] 邹煜良[2] 

机构地区：[1]北京航空航天大学交通科学与工程学院土木工程系,北京100191 [2]北京航空航天大学校园规划与建设处,北京100191

出　　处：《工业建筑》2010年第S1期142-145,共4页Industrial Construction

基　　金：国家自然科学基金资助项目(50678016)

摘　　要：基于变角空间桁架理论,建立了钢筋混凝土矩形截面受扭构件的非线性分析模型进行全过程模拟,得到扭矩和扭转角变化的全过程曲线,数值分析结果与已有试验结果吻合较好。讨论并分析了截面尺寸、截面高宽比、配箍率和纵筋配筋率对钢筋混凝土构件抗扭承载力影响的规律性及其原因。Based on the variable-angle space truss model theory,torsional members with rectangle cross-section of reinforced concrete were analyzed with the nonlinear calculating method to simulate the full-range torque-twist relationship.The numerical results show a good agreement to the attained experimental data.The influence laws on torsional capacity of section size,aspect ratio,stirrup ratio and reinforcement ratio and their causes were discussed and analyzed.

关 键 词：钢筋混凝土 抗扭承载力 截面尺寸 高宽比 配箍率 纵筋配筋率 

分 类 号：TU375[建筑科学—结构工程]