装配式曲线梁桥梁板布置设计

Layout Design of Beam-slab of Prefabricated Curved Beam Bridge

通过探讨不同偏移基线对平行布置和径向布置两类布梁方式的影响,讨论上部结构布梁对下部结构的影响,并分析了几种常见曲线梁桥的布梁方式的特点。研究表明,标准化装配式预制上部结构施工质量可靠,建造周期短,相比现浇结构,节省工期且节约造价。对于曲线梁桥,布梁方式的选择成为设计中的关键,应根据平曲线半径、桥梁长度、桥宽选择合适的布梁方式。

To discuss the effect of superstructure beam arrangement on substructure,the effect of different offset baselines on two types of beam arrangement,parallel and radial,were investigated.And the characteristics of several common curved beam arrangement modes were analyzed.The results showed that the construction quality of the standardized prefabricated superstructure was reliable,and the construction period was short.Compared with the cast-in-place structure,the construction period and cost were reduced.For curved beam bridges,the choice of beam arrangement becomes the key in design.Suitable beam arrangement should be selected according to the radius of plane curve,bridge length and bridge width.