Ultrasonic phased array measurement method for U-rib double-sided full penetration fillet weld

The invention relates to an ultrasonic phased array measurement method for a U-rib double-sided full penetration fillet weld. The method comprises the following steps: step 1, calibrating ultrasonic phased array detection equipment; 2, measuring geometric parameters of the defect position, namely measuring the thickness of the rib plate and the inclination angle of the rib plate; and step 3, measuring the non-penetration position and measuring the size of the non-penetration position. The ultrasonic phased array measurement method for the U-rib double-sided full-penetration fillet weld can be used for detecting the orthotropic steel box girder double-sided full-penetration U-rib fillet weld and is also suitable for maintenance and detection of the U-rib full-penetration fillet weld after service. 本发明涉及一种U肋双面全熔透角焊缝的超声相控阵测量方法，所述方法包括以下步骤：步骤一、超声相控阵检测设备的校准；步骤二、缺陷位置的几何参数测量，即肋板厚度和肋板倾角的测量；步骤三、未熔透位置的测量及大小测量。本发明一种U肋双面全熔透角焊缝的超声相控阵测量方法，其可用于正交异性钢箱梁双面全熔透U肋角焊缝的检测，也适用于U肋全熔透角焊缝服役后的维护检测。