Origami结构的优化及其在桥梁工程中的应用

Optimization of Origami Construction and Its Application in Bridge Engineering

Origami结构作为一种新兴的材料结构,具有轻质、牢固、可展、收缩、防撞、吸能等特性,已逐渐应用于工程领域。文章基于对Origami结构的优化,探究其在桥梁工程中的两大应用:(1)可移动桥梁;(2)桥梁防撞体系。并在桥梁防撞体系中引入"蛋盒"模型,利用Pro/e和COMSOL Multi-physic进行有限元模拟仿真分析,得出"蛋盒"结构与普通的防撞结构相比,具有更加优良的吸能防撞特性,且能多角度抵抗撞击,从而增加桥梁的使用寿命。

As a new material structure, Origami structure has the characteristics of being light in weight, firm, developable, shrinkage, anti-collision, energy absorpting, and so on, thus it has been gradually applied in the field of engineering. Based on the optimization of Origami structure, this paper explores its two major applications in bridge engineering： movable bridge; bridge collision prevention system. The ＂egg box＂ model is introduced into the bridge anti-collision system, and the finite element simulation analysis is carried out by using Pro/e and COMSOL Multi-physic. Compared with the common anti-collision structure, the ＂egg box＂ structure has better energy-absorpting and anti-collision characteristics, and can resist the impact at multiple angles, thus increasing the dura-tion of the bridge.