钢筋混凝土梁斜截面破坏仿真模拟

针对钢筋混凝土梁斜截面破坏的仿真研究较少,通过对材料组合模型、材料本构关系和破坏准则以及模拟单元方面进行比选,选择较有利于真实描述钢筋混凝土结构的模型,利用悬臂梁的破坏过程来分析研究斜截面破坏,并对试验结果在破坏形态、极限荷载和竖向位移等方面进行比较,得出在模型选择准确的情况下,有限元分析能够较好地揭示梁斜截面破坏的过程和状态的结论,为研究钢筋混凝土结构的仿真分析提供了较好的借鉴。

Simulation and Imitation of Damage of RC Beam's Diagonal Section

Research on the diagonal section destruction simulation of reinforced concrete beam is few, this article compares the material combination model, the material construction relations, the failure criterion and the analogue unit to choose the model which is helpful in truly describing reinforced concrete structure and using the process of cantilever beam destruction to analyze the oblique section destruction. By comparing the test results of destruction shape, ultimate load and vertical displacement, it can be known that based on accurate model selection, the finite element analysis can reveal the process and situation of the beam diagonal section destruction well, and provide good reference for the study of the simulation analysis of reinforced concrete structure.