水平荷载作用下型钢混凝土梁-角钢混凝土柱框架非线性有限元模拟
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摘要
采用有限元软件ABAQUS,对一榀单层单跨型钢混凝土组合梁-角钢混凝土柱框架进行水平方向的P-Δ非线性模拟,并与试验结果进行对比。模拟中采用三维实体建模,并从单元的选取、模型的划分、材料本构的定义、荷载的施加及求解技术等方面,对框架的有限元模拟进行了较为系统的阐述。通过模拟计算,得到了框架的荷载-位移曲线及破坏模式,其计算结果与试验结果吻合良好。结果表明,在合理选取参数的基础上,ABAQUS软件能够较为真实地模拟框架的受力过程。
An FEM simulation for a frame structure of steel reinforced concrete beam and angle steel concrete column was conducted by finite element software ABAQUS,and the results for the simulation and tests are compared.3D finite element model of the frame was established in this simulation,and a series of numerical simulation technologies were described,such as selecting element types,meshing element,defining material models,applying load,and solving skills.Through the FEM simulation,the load-displacement curves and failure modes of the frame were acquired,and the results agreed well with the tests.The investigation shows that the loading process of a frame structure can be simulated well by software ABAQUS,based on the rational selecting parameters.
引文
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