Layout Method Research of the Grouting Sleeve Plumpness Detection Based on Piezoelectric Ceramic
Piezoelectric wave quality detection technology has the characteristics of high detection accuracy and wide application range,and is applied to the detection of sleeve grouting plumpness of vertical connection of prefabricated structure.In order to explore the influence mechanism of the piezoelectric ceramic measuring point layout method on the detection accuracy of the grouting sleeve piezoelectric wave method,a piezoelectric wave detection test on a total of 42 grouting sleeve specimens with steel bar diameters of 12,18,25mm is conducted.The test parameters are piezoelectric ceramic type,piezoelectric ceramic layout position and spacing.The results show that the measuring points of the grouting sleeve specimen should be arranged in an embedded way,and the ring piezoelectric ceramic can be used for high-precision detection.The finite element simulation can better simulate the propagation path of sinusoidal stress wave in the grouting sleeve.Both the wavelet energy decomposition method and the amplitude difference calculation method can analyze the detection accuracy of the measuring point layout,the former has high detection accuracy,and the later is simple to operate.
grouting sleeveplumpnesspiezoelectric wave methoddetectionfinite element analysis
万方数据
维普
