PPP-BOTDA监测钢筋混凝土结构分布式应变的试验

为了验证将PPP-BOTDA技术应用于桥梁、隧道等大型或大跨结构健康监测的可行性,试验研究了PPP-BOTDA在钢筋混凝土结构应变监测中的应用,实验结果表明,PPP-BOTDA检测的应变与应变片测量结果比较吻合,能够准确监测钢筋混凝土试验梁的应变,可以应用于大型或大跨结构的健康监测。

Experiment on distributed strain monitoring of reinforced concrete structure using PPP-BOTDA

In order to verify the feasibility of PPP-BOTDA in the application of long-span structures or large-scale structures health monitoring such as bridges and tunnels,PPP-BOTDA used in strain monitoring of reinforced concrete structure has been studied experimentally.The experimental results show that the strains measured by PPP-BOTDA have a good agreement with that by the strain gauge in the test,which proved that PPP-BOTDA can be successfully to measure the distributed strains of test beam in reinforced concrete structures.And it is obvious that the application of PPP-BOTDA to the field of structural health monitoring on long-span structures and large-scale structures.