某人防口部粘钢封堵三维有限元数值分析

Three Dimensional Finite Element Analysis of the Gateway of Defence Structure Strengthened with Steel Plate

通过粘钢实现一典型汽车库人防口部封堵的设计方案,采用有限元分析软件对其进行三维有限元数值分析,采用八节点六面体单元离散顶板、底板、封堵板、粘接钢板、H型钢、混凝土顶板、底板及封堵板与钢板之间拟设置接触面单元模拟粘胶的性态,得到H型钢与钢板、H型钢与混凝土、角钢与混凝土之间的粘结应力,并和粘接胶强度进行对比后得出结论:在对汽车库人防口部封堵设计中,采用粘钢技术可以满足人防口部的封堵设计要求,由此论证了这类技术用于平战功能转换的可能性和优越性。

In this paper, by bonding steel plates the desiqn project of a gateway of a typical garage is carried out, and three dimensional FEM is adapted to a gateway of defense structure of a typical garage strengthened by steel plates. A 3D friction contact element method is developed in this paper. The results show that the technology of strengthening by bonding steel plates can fulfill the design ability of a gateway of defense structure to close up a typical garage. And the method proves to be of possibility used for functional transformation from peacetime to wartime.