橡胶止水带受力状态下的有限元分析

Finite element analysis of rubber water-stop beared forces

应用大型有限元分析软件ANSYS,建立了橡胶止水带于混凝土中在不同受力形式下的有限元模型,分析了在各种不同工况下止水带变形及应力的分布,描述了其可能出现裂纹的位置。通过分析计算得出,当止水带在混凝土中受力而产生应力时,对止水带伸缩性起主要作用的是中心孔的横梁结构,此部位承受了较大的应力。与此同时,计算得出在各种工况下止水带所受最大应力以及止水带中心孔横梁结构中心节点的最大反力。分析了各种工况下最大应力与位移的关系,以及止水带中心孔横梁结构中心节点反力与位移的关系。为止水带的设计、生产、安装及模型优化提供了依据。

By utilizing finite element analysis software ANSYS,a finite element model of the rubber water-stop in concrete by different force conditions was set up. The deformation and stress distribution under several different load conditions were analyzed. Then the position of possible crack was described. The analysis shows that when the water-stop in the concrete was force to generate stress,the crossbeam of central hole played a major role and bear a larger stress. And the maximum stress in a variety of load conditions and the maximum inversed force of crossbeam of central hole were obtained. Then in a variety of load conditions,the relationship between the maximum stress and disaplacement,as well as the relationship between the maximum inversed force and disaplacement were analyzed. The analysis results provide the basis for the design, production,installation and optimization of model for the water-stop.