独塔平行索面宽钢梁斜拉桥结构体系设计研究

Study on Structural System Design of Single-pylon Parallel-plane Wide Steel Girder Cable-stayed Bridge

以广东省佛山新西樵大桥为工程背景,主要从结构体系、主梁形式的选择、结构形式等方面介绍独塔平行索面宽钢梁斜拉桥结构体系相关研究。通过纵向可调高支座的运用,完成新西樵大桥混凝土塔钢梁较接结构体系的实现,简化了平行索面斜拉桥超宽钢梁与塔柱之间的复杂构造关系,为类似工程提供借鉴与参考。

Taking Xinxiqiao Bridge in Foshan of Guangdong Province as the engineering background,this paper mainly introduces the study on the structure constraint system of the single-pylon parallel-plane super-wide steel girder cable-stayed bridge from the selection of structural system and main girder form.The application of adjustable support successfully realize the hinged structure system of concrete pylon and steel girder of Xinxiqiao Bridge,which simplifies the complex structural relationship between the super-wide steel girder and the pylon of parallel-plane cable-stayed bridge,and provides the reference for the similar projects.