210m下承式钢箱提篮系杆拱桥总体设计

武汉市左岸大道通顺河桥采用210 m下承式钢箱提篮系杆拱桥,为双向六车道带人非混行道的城市快速路桥梁.主拱采用提篮式钢箱拱,主梁采用"钢纵横格子梁+混凝土桥面板"式组合梁体系,主纵梁兼作刚性系梁,主纵梁箱内设置钢绞线柔性系杆索.主体结构采用顶推法施工.桥梁方案的设计构思可为类似工程提供参考.

Overall Design of 210-m Through Steel-box Basket-type Bowstring Arch Bridge

The Tongshun River Bridge in Zuoan Avenue in Wuhan is a 210-m through steel-box basket-type bowstring arch bridge, and is an urban expressway bridge with the double-way six-lane traffic for pedestrians and non-motor vehicles. The main arch is a basket-type steel-box arch. The main girder is a "steel vertical and horizontal lattice beams + concrete deck slab" composite girder system. The main vertical beam is concurrently as the rigid tie beam. The flexible tie bar cables of steel strand are set in the box of the main vertical beam. The main structure is constructed by the incremental launching method. The design concept of the bridge scheme can provide the reference for similar projects.