含缺陷钢管混凝土超声波特性试验研究

Ultrasonic Testing Research on Defect Concrete Filled Steel Tube

在分析了超声波检测的基本原理及缺陷判别方法的基础上,对钢管混凝土质量缺陷的种类进行了模拟试验,并将所得结果付之于具体实践中,即利用超声波检测技术对某钢管混凝土拱桥进行缺陷检测,以验证超声波检测在钢管混凝土缺陷检测中的可行性及模拟试验结果的正确性。对比试验结果,针对超声波检测所得不良结果处进行抽样钻孔查验。查验结果证明了超声波检测所反映的各类缺陷与样品相符,从而验证了超声波检测技术在钢管混凝土结构施工质量检测中应用的可行性和实验所得结果的正确性。

Based on the basic principle of ultrasonic testing and the defect detection method, makes simulated tests on the quality defects of.concrete filled steel tube（CFST）. Applies the ultrasonic testing technique to detect a CFST arch bridge and proves the feasibility and correctness of the technique in CFST defect detection. Comparing to the trail results, inspects the detecting results by core-drilling method. It shows that the defects detected by ultrasonic testing are in good accordance with the drilling samples, which verifies the adaptability of the ultrasonic detection technique in the construction quality inspection of CFST structures and the correctness of the trail results.