蝶形拱桥设计与施工关键技术

Key Technology of Design and Construction of Butterfly-shaped Arch Bridge

摘要:

蝶形拱桥作为新型拱桥，因其造型新颖独特易与周边环境相协调，在国内外城市景观桥梁建设中备受青睐。崇明南横引河桥位于曲线上，主桥采用69.514 m下承式结合梁蝶形系杆拱桥。对其结构设计及施工控制关键技术进行了详细介绍，总结了该桥梁的结构特点和受力特性，并提出了改善其受力性能的方法。

Abstract:

As a new type of arch bridge, the butterfly-shaped arch bridge is favored in the construction of urban landscape bridges at home and abroad due to its novel and unique shape and easy coordination with the surrounding environment. The Chongming South Hengyinhe Bridge is located on a curve, and its main bridge is a 69.514-m through-type composite beam butterfly-shaped bowstring arch bridge. The key technologies of its structural design and construction control are introduced in detail. The structural and stress characteristics of the bridge are summarized. The method to improve its stress performance is put forward.