某既有桥梁的承载力检测与评定研究

结合某旧桥实际工程,通过对该旧桥进行结构性能检测和盖梁承载力验算进行研究,并利用综合评定法对该旧桥进行等级评定,为以后对该旧桥进行合理的利用提供科学依据.研究结果表明:该桥所处的现场状况较差,钢筋和混凝土构件破坏严重,结构性能较差,主要承重构件的承载力不能满足现阶段的公路桥梁荷载等级要求,评定等级为四级.

The Detection and Evaluation Research About Load-carrying Capacity of a Cast-in-place Pile Bridge

Combining practice project of an old bridge, this paper analyzes the detection of structure performance and checking calculation load-carrying of coping, assesses the bridge by synthetically assessment, and supplies scientific foundation for reasonable utilization of the old bridge. The research indicates that environment of the bridge is poor, and the reinforced concrete is destroyed seriously. Some main load-carrying member cannot meet the challenge the new grade load of highway bridge, and the assessed grade is four.