摘要
通用有限元程序的二次开发,可以较好地弥补现有钢板混凝土数值分析方法的不足。在对比分析钢板混凝土与钢筋混凝土的基础上,建立了适用于钢板混凝土的软化膜模型,并将建立的模型通过UMAT用户子程序嵌入通用有限元程序ABAQUS。在针对钢板混凝土双向拉压试验的数值分析中,计算结果与试验结果取得了较好的一致性,表明该方法具备较强的准确性和通用性,为分析和设计复合荷载下的钢板混凝土结构提供了有效手段。
The shortcomings of the existing finite element methods for steel-plate concrete(SC)can be overcome by development of FE package.Based on the comparison of steel-plate concrete and reinforced concrete,the traditional softened membrane model has been improved and incorporated into the ABAQUS by UMAT user subroutine.The numerical analysis complies with the experimental results in the modeling of biaxial loading tests of SC panels,indicating that the method has good accuracy and general applicability,which provides an effective method for analyzing and designing SC composite structures under various loads.
作者
李乐
宋晓冰
陈思佳
LI Le;SONG Xiaobing;CHEN Sijia(Shanghai Jiaotong University,Shanghai 200240,China)
出处
《混凝土》
CAS
北大核心
2021年第4期129-135,共7页
Concrete
基金
国家科技重大专项课题“CAP1400关键设计技术研究”(2011ZX06002-001)。
关键词
钢板混凝土组合结构
软化膜模型
用户子程序
steel-plate concrete composite structure
softened membrane model
user subroutine
