城市道路新型轻架桥设计研究

The Study on the Design of a New Type of Light Steel Bridge for City

摘要: 为减缓我国城市道路交通堵塞问题，设计研究出一种新型轻架桥。参考现有的钢桥规范，结合轻架桥自身的特点进行了结构设计。并对其进行了强度与刚度验算及优化减重。城市道路轻架桥具有经济，不占原有道路资源，建设速度快等优点。其对缓解目前大中城市道路拥堵将起到非常重要的作用。

Abstract: In order to alleviate the traffic jam of urban road in China, a new type of light bridge is designed and developed. Referring to the existing steel bridge code, combined with the characteristics of light frame bridge, the structural design is carried out. The strength and stiffness of the system are checked and the weight is reduced. Urban road light bridge has the advantages of economy, not occupying the original road resources, rapid construction speed and so on. It will play a very im-portant role in easing the current road congestion in large and medium-sized cities.