Yi Long Bridge is a unique city landscape bridge. The main bridge takes single cable plane special-shaped arch as'its structure, the span arrangement is 60+120+50= 230m. The design of the bridge appearance is novel and the bridge is harmony with the surrounding environment, assembling the traffic function together with artistic showing in a body perfectly. The summarization of the engineering, structure design, the innovative technology, and the key point of construction were generally introduced in this paper. The structure style, design concept, the set of main structure size of the bridge and the new design method taken in the process of work were specially introduced, and the mechanical characteristics of the engineering were shown combining with the result of global computation mode and local stress analysis.%伊龙大桥是一座造型独特的城市景观桥梁.主桥采用单索面异形拱桥,跨径布置为60+120+50=230m.桥梁外观设计新颖,与周边环境协调,集交通功能与美观于一体.本文主要对工程情况、结构设计、创新技术及施工要点等进行陈述介绍.着重介绍了该桥的结构形式、设计构思、主要结构尺寸设置以及设计过程中采用的新颖的设计方法,并结合整体计算模型及局部受力分析部分结果来简要说明本工程结构的受力特点.
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