曲线连续钢箱梁设计要点分析

Analysis of design points for curved continuous steel box girders

由于钢箱梁具有结构高度低、跨越能力大、自重轻、抗弯和抗扭刚度大、强度高及施工速度快等优点,在大跨度曲线桥梁中应用越来越广泛。由于曲线桥梁受力状态非常复杂,处于一种弯、剪、扭的复杂受力状态,设计过程应进行详细计算。通过工程实例,从总体布置、构造、受力特点、建模与计算对曲线钢箱梁的设计和计算要点进行了详细研究,为同类型桥梁的设计提供参考和借鉴。

Due to the advantages of low structural height,large span capacity,light self-weight,high bending and torsional stiffness,high strength,and fast construction speed,steel box girders are increasingly used in large-span curved bridges.Due to the complex stress state of curved bridges,which are in a complex state of bending,shear,and torsion,detailed calculations should be carried out during the design process.Through engineering examples,a detailed study is conducted on the design and calculation points of curved steel box girders,providing reference and inspiration for the design of similar bridges.