第十届亚洲土木工程邀请赛某参赛模型结构设计与分析

STRUCTURE DESIGN AND ANALYSIS OF A COMPETITION MODEL FOR THE 10th INTER-UNIVERSITY INVITATION CIVIL ENGINEERING COMPETITION

第十届亚洲土木工程邀请赛的题目为制作一个可承受静载荷和动载荷的弯桥,要求模型具有足够的承载力和合理的刚度,且模型质量尽可能小。针对西南交通大学代表队的参赛作品,从材料力学性能、桥梁概念设计、数值优化等几方面,阐述了结构优化步骤和方法,对比了静、动力仿真分析和实体模型试验,总结了模型设计的优点和不足。本文可为今后的类似赛事提供参考。

The theme of the 10 th Inter-University Invitational Civil Engineering Competition is to design a curved bridge, capable of withstanding static and dynamic loadings. A model is required to have a sufficient load-carrying capacity and a reasonable stiffness. Moreover, its mass should be as small as possible. According to the model made by Southwest Jiaotong University, the steps and the methods of the structural optimization are described in terms of the material mechanical properties, the bridge conceptual design and the numerical optimization. The results of the static and dynamic numerical simulations are compared with those of prototype testing. The advantages and disadvantages of the model design are summarized.