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湛江世贸人行天桥将传统的无直腹杆平行弦杆桁架进行变异处理,形成类似“金属飘带”的异形空间桁架结构体系,是中国首座空间异形下承式简支钢桁架人行天桥。该人行天桥结构新颖,受力合理,造价经济,加工方便快捷,推广应用前景广阔。该文介绍了该桥的设计思路、结构特点和结构设计、计算情况。
Zhanjiang WTO pedestrian bridge will be the traditional non-straight rod parallel chord truss variant processing, the formation of similar “metal streamers ” shaped space truss structure system, is China’s first space-shaped under the support simply supported steel truss pedestrian bridge. The pedestrian bridge has the advantages of novel structure, reasonable force, economical cost, convenient and quick processing, broad prospect of application and popularization. This paper introduces the design concept, structural characteristics, structural design and calculation of the bridge.