预应力碳纤维板桥梁加固技术发展与应用

桥梁经长时间服役,其使用性能及承载能力发生退化,大量旧空心板桥出现铺装开裂、铰缝渗水等病害,空心板之间铰缝失效严重,出现单板受力导致梁板承载力大幅降低,危及桥梁安全。采用预应力碳纤维板加固技术可快速有效地对受损空心板梁进行加固修复,提升桥梁承载能力。

After long-term service,the service performance and bearing capacity of the bridge are degraded,a large number of old hollow slab bridges appear diseases such as pavement cracking,hinge joint seepage and other diseases,the hinge joint failure be-tween the hollow slab is serious,and the stress of the veneer leads to the substantial reduction of the bearing capacity of the beam and slab,endangering the safety of the bridge.The use of prestressed carbon fiber board reinforcement technology can quickly and effectively strengthen and repair the damaged hollow slab beam and improve the bearing capacity of the bridge.