超声波检测钢管混凝土拱桥密实度的试验研究

Study of Ultrasonic Detection and Evaluation forthe Deficiency of Concrete-Filled Steel Tube Arch Bridge

对超声波检测钢管混凝土拱桥的缺陷进行了分析,在改进常规检测方法的基础上,提出了一种有效的钢管混凝土拱桥现场超声波定量检测的方法,其主要特点是以实体参照物进行测量参数的标定及测试,实践证明该方法精确可行.最后结合深圳市北站大桥超声波检测的实例进行分析,并对现场测试的具体问题提出建议.

The defect of concrete-filled steel arched bridge is analyzed by ultrasonic detection in this paper. Through improving the conventional test method, an effective ultrasonic quantity detection method used in field concrete-filled steel arched bridge is proposed. The chief character is that the calibration and test of measuring parameter proceeds in response to the entity reference object. The experience approves that the test method is precise and feasible. Finally, analysis is done associate with the ultrasonic detection example of north-station-bridge in Shenzhen city, and suggestion is offered according to the specific problem of field test.