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随着我国公路交通基础设施建设的投入不断加大,我国已有桥梁数量不断攀升,对既有桥梁的检测与评定任务不断加剧,无损检测方法在桥梁检测中的充分运用,电磁感应法在测定混凝土桥梁的钢筋布置、保护层厚度及钢筋直径的广泛运用,通过对该法的基本原理进行分析,对采用该法的误差来源进行分析,提出相应的改进方法与措施,论述了该法进行钢筋直径的检测存在较大的误差,提出采用其它检测方法进行相互验证。
With the increasing investment in highway traffic infrastructure construction in our country, the number of bridges in our country has been on the rise. The task of testing and assessing the existing bridges is aggravating. The non-destructive testing methods are fully utilized in bridge testing. The electromagnetic induction method, Based on the analysis of the basic principle of the method and the analysis of the sources of error of the method, the corresponding improvement methods and measures are put forward, and the method of reinforcing steel bar Diameter of the test there is a big error, put forward the use of other testing methods for mutual verification.