型钢混凝土柱复合受扭性能的非线性有限元分析  

Nonlinear Finite Element Analysis on Combined Torsion Performance of Steel Reinforced Concrete Column

作　　者：陈杰[1] 邵永健[1] 徐佩登 

机构地区：[1]苏州科技学院土木工程学院,215011

出　　处：《混凝土与水泥制品》2016年第1期42-45,共4页China Concrete and Cement Products

基　　金：国家自然基金项目(51078249)

摘　　要：基于4个比例为1:2的H型钢混凝土柱在单调荷载下的复合受扭试验,运用ABAQUS建立相应的有限元分析模型。通过对比开裂扭矩、极限扭矩和扭矩-扭率曲线,验证了有限元分析在型钢混凝土复合受扭性能研究方面的有效性,分析了轴压比、扭弯比和混凝土强度对型钢混凝土柱复合受扭性能的影响。研究结果表明,提高轴压比可提高型钢混凝土柱的极限扭矩,但对其后期延性不利;扭弯比的减小使弯曲损伤加大,对于构件极限抗扭不利;提高混凝土强度可提高构件的极限扭矩,但后期延性变差。Based on the combined torsion tests of 4 half scale SRC（Steel Reinforced Concrete） columns under monotonic loads, corresponding finite element models are established by nonlinear finite element analysis software of ABAQUS. By comparing torsion-torque curve, the validity and accuracy of the finite element analysis are verified in terms of the research about the steel reinforced concrete. The influence of the axial compression ratio、torsion-bending ratio and concrete strength on the performance of the SRC column under the combined torsion are analyzed. The results show that increasing of axial compression ratio can improve the ultimate torque, but be unfavorable to deuteric ductility. The decrease of torsion-bending ratio, the bending damage increases, but is unfavorable to ultimate torque resistance. The increasing of concrete strength improves the ultimate torque, but the deuteric ductility decreases.

关 键 词：型钢混凝土柱 复合受扭性能 ABAQUS数值模拟 轴压比 极限扭矩 混凝土强度 

分 类 号：TU528.79[建筑科学—建筑技术科学]