薄壁混凝土结构槽型梁裂缝的研究讨论

预应力混凝土槽型梁是一种新型桥梁结构,适用于公路、铁路桥梁及城市轨道交通建设,槽型梁桥属下承式开口薄壁结构。现阶段,预应力混凝土槽型梁应用广泛,在桥梁建设中,槽型梁的腹板常采用的是薄壁混凝土结构。此结构体量小,可以节省成本且不失安全性。但同时,预应力混凝土槽型梁采用的薄壁混凝土易产生裂缝,本文着重于对薄壁预应力混凝土槽型梁的裂缝的现状进行讨论分析。

Prestressed concrete channel beam is a new type of bridge structure,which is suitable for highway,railway bridge and urban rail transit construction.The channel beam bridge is a substructured open-thin wall structure.At this stage,prestressed concrete channel beams are widely used.In bridge construction,the webs of channel beams often use thin-wall concrete structures.This structure has a small volume,which can save costs without losing safety.At the same time,the thin-walled concrete used in the prestressed concrete channel beam is prone to cracks.This article focuses on the current situation of cracks in the thin-walled prestressed concrete channel beam.