某梁拱组合桥梁设计

A Beam-arch Composite Bridge Design

为满足桥梁的景观需求,本桥拱肋采用独特的流线型线条设计,拱肋截面采用水滴截面。由于景观外形要求,拱肋矢高较小,拱肋不能充分发挥作用,主桥采用梁拱组合体系,很好地解决了这个问题,在最不利工况下,主梁及拱肋的应力满足规范要求,主桥的稳定性亦满足要求。该桥将结构美观、受力合理很好的结合在一起,其构造设计可以对类似工程有借鉴作用。

In order to meet the landscape requirement, a beam-arch composite bridge was designed. The arch rib adopts a unique streamlined line with a cross-section of water. For the reason of landscape,the bridge adopts the beam-arch composite system, which solves the problem that the height of the arch rib is small and the arch rib can not fully play the role. Under the most unfavorable conditions, the main girder and arch rib stress the stability meet the specification requirements. The bridge aesthetics and the stress distribution are reasonable. The structural design of the bridge can serve as a reference for similar projects.