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自制模拟现场钢管混凝土缺陷模型,采用超声波对测法测试不同脱黏状态钢管混凝土模型的密实度,对比分析了超声波参数变化与钢管混凝土缺陷之间的关系,找出了能够准确判断钢管混凝土缺陷的方法与规律。结果表明,依据超声波首波相位、声时值和波幅的变化,可以判断钢管混凝土脱黏区域、空洞和断层等缺陷。
Self-made model of concrete filled steel tubular defects, the use of ultrasonic testing of different debonded steel tube concrete model of the density, comparative analysis of the ultrasonic parameters and the relationship between steel tube defects, to find out accurately determine the defects of concrete filled steel tubes Methods and laws. The results show that defects such as debonding area, cavities and faults of CFST can be judged according to the change of the first phase of the ultrasonic wave, the time value of the sound wave and the amplitude of the wave.