预应力混凝土连续箱梁的加固设计与施工监测

Strengthening Design and Construction Monitoring of Prestressed Concrete Continuous Box Girders

某座预应力混凝土连续箱梁受损后,梁体上产生大量的裂缝,且主梁刚度明显降低,通过加固设计,采取有效的加固施工方法,静动载试验,经过一段时期的通车运营表明该桥已恢复了原设计的承载能力。

After the prestressed concrete continuous box girders of a bridge suffered damages, lots of cracks occurred in the girders and the rigidity of the girders also significantly decreased. With the design of strengthening and effective method for strengthening construction of the bridge, the bridge has been restored to its original designed carrying capacity as proved by the static, dynamic tests, and after a period of traffic operation.