论文部分内容阅读
考虑材料非线性和几何非线性,详细介绍了如何运用大型有限元软件Abaqus对体外预应力混凝土简支梁进行有限元建模及分析,包括各单元的选取、材料的本构关系选用、网格的划分等。在试验的基础上,利用Abaqus软件对3根体外预应力简支梁从加载直至破坏的全过程进行了模拟和分析,并与试验进行比较,结果表明:Abaqus能较好地模拟出受力全过程。
Considering material nonlinearity and geometrical nonlinearity, this paper introduces how to use finite element software Abaqus to do finite element modeling and analysis of external prestressed concrete simply supported beam, including selection of each element, selection of constitutive relation of material, The division and so on. Based on the experiment, Abaqus software was used to simulate and analyze the whole process of three externally prestressed simply supported beams from loading to failure, and compared with the experiment. The results show that: Abaqus can simulate the whole force process.