不同影响因素对钢骨混凝土压扭构件抗扭刚度的影响

Study on different influence factors on the torsional stiffness of compression torsion member of steel reinforced concrete

通过利用非线性有限元软件ABAQUS建立模型,得到压扭构件的扭矩-扭率曲线以及混凝土、钢骨、钢筋的应力云图等。分析了6根钢骨混凝土构件和1根钢筋混凝土构件在压力和扭矩的共同作用下,轴压比、混凝土强度等级、钢骨配置、配筋率、含钢率等参数对构件抗扭刚度的影响。

In this paper, by establishing models using nonlinear finite element software ABAQUS , torque rate curve of the compression torsion members and the stress nephogram of the concrete, steel, steel bar were attained. The influences of axial compression ratio, concrete strength grade, steel bone configuration, reinforcement ratio, steel ratio and other parameters on torsional stiffness of the members were analyzed when the 6 root members of the steel reinforced concrete and 1 member of the reinforced concrete were under the joint action of pressure and torque.