装配式板梁变宽桥设计探讨

Discussion on the widening bridge design of fabricated slab beam

变宽桥一般采用现浇结构处理,增加了设计与施工难度。标准化设计的装配式结构具有更高的可靠性与安全性,但设计主要采用顺桥向平行布置。根据设计经验,探讨了通过改变翼板长度,改变梁体布置角度,将装配式结构应用于变宽桥的一般设计方法以及关键问题。

The widening bridge was generally treated with cast-in-place structure treatment,which increased the design and construction difficulty,the fabricated structure of standardized design had higher reliability and safety,but the design mainly adopted parallel bridge arrangement.According to the design experience,this paper discussed the general design method and key problems applied widening bridge to fabricated structure through changing the length of wing plate,changing the layout angle of beam.