城市钢筋混凝土拱桥方案设计分析

Analysis on Design Scheme of Urban Reinforced Concrete Arch Bridge

以桂林市平乐县茶江二桥设计为背景,分析了在加强考虑景观性能情况下城市桥梁方案选择与设计。通过预应力混凝土连续梁桥和钢筋混凝土上承式连续拱桥的方案比选,在经济性和可施工性条件下选择了美观性较好的拱桥方案,并开展了拱肋、拱上建筑、桥面板、桥墩的详细构造设计。为加强美观构造,在桥跨中间设计了凉亭方案,使整个桥梁与周边环境协调统一。

Based on the design of the Cha River Bridge II in Pingle County of Guilin City, the scheme selection and design of urban bridges with much more concerns focused on landscape are analyzed. According to the selection and comparison of a pre-stressed concrete continuous girder bridge and a reinforced concrete deck continuous arch bridge, the arch bridge scheme is selected because of its better aesthetics, economy and constructability. Then, the detail structure design of arch rib, arched building, deck and pier are analyzed. To enhance the aesthetic bridge, a pavilion is designed in the middle of the bridge to make the whole bridge coordinate with the surrounding environment.