超声法检测建筑工程钢管混凝土缺陷试验研究

Test Ultrasonic Defect Detection of Concrete Filled Steel Tube in Construction Engineering

在《超声法检测混凝土缺陷技术规程》CECS21∶2000的基础上,试验研究了在建筑工程中钢管混凝土中的各类缺陷,得出了各类缺陷的声波数据及典型缺陷的声波图形,为工程人员在实际检测工程中提供了可靠的声波数据及声波图形,并提出了一些在应用超声法检测技术时应注意的问题。根据试验结果,当钢管混凝土脱空值超过1.4mm时超声法测得数据出现非正常值,数据不再准确。

Based on Technical specification for inspection of concrete defects by ultrasonic method CECS21∶2000,the types of defects were studied in steel tube concrete of construction engineering,it obtained sonic graphics and sonic data typical types of defects and defect engineering in practice,which provides reliable detection of engineering with sonic graphics and sonic data,and presents some problems detected by ultrasound technology which should be paid attention. According to the results,when the steel tube concrete void value exceeds 1. 4mm as measured by ultrasound data appear non-normal,the data is no longer accurate.