基于长标距光纤光栅的龙尾港大桥加固监测研究  

Research on Monitoring of the Longweigang Bridge Strengthening based on Long-gauge Fiber Grating

作　　者：王建霞 杨美群[1] 张友华 陈适之 WANG Jian-xia;YANG Mei-qun;ZHANG You-hua;CHEN Shi-zhi(Jiangxi Ganyue Expressway Co.Ltd.,Nanchang 330025,China)

机构地区：[1]江西赣粤高速公路股份有限公司,南昌市330025

出　　处：《公路》2020年第11期110-117,共8页Highway

摘　　要：相较于其他工程结构来说,桥梁工程的安全性意义非凡。当桥梁出现损伤时,对其进行加固补救十分必要。目前已有大量成熟的加固方法用于该领域,维护保障桥梁安全。然而目前的相关研究主要集中在数值模拟和室内试验验证,对于各方法在现场实际工程应用中的效果尚未有详细的研究说明。通过对江西九江至景德镇段一座受损预应力简支空心板梁桥进行加固监测研究,来量化研究预应力钢丝绳加固法和粘贴玄武岩纤维布加固方法对桥梁梁体性能的提升效果,研究结果可以为后续研究提供参考。Compared with other engineering,the safety of bridge projects is much more significant.When there is damage existing in a bridge,it is necessary to carry out strengthening in time.Currently,there are plenty of methods which can be utilized for strengthening to maintain the bridge's safety.However in nowadays,the relevant studies mainly focus on numerical simulation and indoor experiment verification,meanwhile these methods'performances in actual engineering have not been thoroughly investigated.Therefore,in this paper,monitoring of the retrofitting process of a damaged prestressed simply supported hollow slab bridge between Jiujiang city and Jingdezhen city is carried out to quantify two strengthening methods'performance in promoting a bridge’s property,including equipping perstressed steel rope method and sticking basalt fiber fabric method.The results can provide references for relevant studies in future.

关 键 词：桥梁加固 监测 长标距光纤光栅 预应力钢丝绳 武岩纤维 研究 

分 类 号：U446.2[建筑科学—桥梁与隧道工程]