论文部分内容阅读
针对钢管混凝土中的核心混凝土,采用现有的核心混凝土单轴受压本构关系及《混凝土结构设计规范》(GB 50010—2010)中给出的滞回规则,利用大型通用有限元分析软件ABAQUS提供的二次开发平台,开发了核心混凝土用户材料子程序UMAT,并分别在材料、构件及结构层次上进行了验证。结果表明,采用所开发的核心混凝土用户材料子程序在总体上能较好地模拟钢管混凝土结构或构件的力学性能,且具有较高的分析效率。
According to the existing core concrete uniaxial compression constitutive relations and the hysteretic rules given in the “Code for Design of Concrete Structures” (GB 50010-2010), aiming at the core concrete in concrete-filled steel tube (CFST), large general finite element analysis software ABAQUS Provided the secondary development platform, developed the core concrete user material subroutine UMAT, and were verified on the material, component and structure levels. The results show that the developed sub-program of core concrete user material can simulate the mechanical properties of CFST structure or component well with high efficiency.