钢筋混凝土上翻悬挑梁裂缝数值模拟研究

Numerical simulation of cracks of overturned cantilevered beams on reinforced concrete

以某工程为例,根据钢筋混凝土上翻悬挑梁梁受力特点,在深入分析塑性模型和损伤模型的基础上,选用混凝土塑性损伤模型,通过大型数值模拟软件ABAQUS对钢筋混凝土上翻悬挑梁裂缝进行模拟,将主应力云图、损伤云图与现场裂缝位置及形态进行对比,阐明了裂缝产生的内在机理,以期为后续工程提供参考。

Taking a project as an example,according to the stress characteristics of the overturned cantilever beam beam on reinforced concrete,on the basis of in-depth analysis of the plastic model and the damage model,the plastic damage model of concrete is selected,and the cracks of the overturned cantilevered beam on the reinforced concrete are simulated by the large-scale numerical simulation software ABAQUS,and the main stress cloud diagram and the damage cloud map are compared with the location and form of the fractures on the site,and the internal mechanism of crack generation is clarified,in order to provide reference for subsequent projects.