预应力混凝土盖梁端部裂缝成因分析

Analysis of Crack Cause at End of Pre-stressed Concrete Capping Beam

该文分析了某桥预应力混凝土盖梁端部裂缝的成因,总结了锚固点布置对盖梁端部局部应力的影响规律,提出了改善盖梁端部受力性能的锚固区布置原则,并对此盖梁裂缝处理提出了建议。其所得结论和建议可供同类结构设计参考。

The article analyzes the crack cause at the end of pre-stressed concrete capping beam of a bridge,summarizes the influence law of anchorage point arrangement on the partial stress at the end of capping beam, proposes the arrangement principle of anchorage zone to improve the stress property at the end of capping beam and puts forward the suggestion for the crack treatment of capping beam. The conclusion and proposal can be referred for the design of the similar structures.