开平东环大桥主桥设计关键技术研究

Study of Key Technologies for Design of the Main Bridge of the Donghuan Bridge at Kaiping

开平东环大桥位于开平市区,主桥采用49 m＋98 m＋180 m独塔斜拉桥,主梁采用混凝土箱梁,主塔采用“门”形塔,在设计过程中解决了斜拉桥超宽混凝土箱梁设计、主塔上横梁设计及桥梁景观设计等诸多关键技术和难点,取得了一些创新性的成果,可为今后国内类似桥梁工程的建设提供借鉴与参考。

The Donghuan Bridge is located in Kaiping City, with the main bridge being a single tower cable-stayed structure and the span layout of 49 ＋ 98 ＋ 180m. The main girder is concrete box girder structure and the main tower adopts portal type. In the design process, many key technologies and tough issues are solved, like the design of super wide concrete box girder, the upper beam of the main tower, and landscape design. Some innovative achievements have been obtained, which can provide guidance for the design of same-type bridges.