成都市金融城锦言大桥总体设计

Overall Design of Jinyan Bridge in Financial Town of Chengdu

摘要:

成都市金融城锦言大桥为下承式空间异形钢拱桥，主梁跨径135 m，主拱跨径138 m。桥下锦江为Ⅵ级航道，主梁采用2.5 m高单箱七室扁平钢箱梁，钢拱肋采用单箱单室变截面钢箱，全桥设置11根高强度成品吊索，桥面总宽30 m。采用有限元软件对桥梁总体进行仿真计算分析，根据分析结果指导设计及施工。锦言大桥结构形式特殊，外观优美大气，桥梁建成后成为区域标志性建筑。锦言大桥的总体设计方案可为类似下承式空间异形拱桥设计提供参考借鉴。

Abstract:

Jinyan Bridge in Financial Town of Chengdu is a through spatial special-shaped steel arch bridge. The span of the girder is 135 m and the span of the main arch is 138 m. Jinjiang River under the bridge is a Class VI waterway. The girder is a 2.5 m-high single-box seven-chamber flat steel box girder. The steel arch rib is a single-box single-chamber variable section steel box. The whole bridge is equipped with eleven high-strength finished slings. The total width of the bridge deck is 30 m. The finite element software is used to simulate, calculate and analyze the whole bridge. The design and construction are guided according to the analysis results. Jinyan Bridge has a special structural form and beautiful appearance, and has become a regional landmark after its completion. The overall design scheme of Jinyan Bridge can provide the reference for the design of similar through spatial special-shaped arch bridges.