With the vigorous promotion of prefabricated concrete and steel structure buildings in China,the grouting density of the sleeve connection directly affects the bearing capacity of the structure,and is one of the most critical quality points.According to the requirements of the specification,it need to be fully tested.Although the industry has proposed X-ray industrial CT method,embedded sensor method,embedded wire drawing method,X-ray film imaging method and other methods,they have their own scope of application and characteristics,the detection cost is high,and it cannot be applied practically.In this regard,a detection method based on shock elastic wave and Al simulation Bayesian network and artificial neuron network to establish a prediction model is developed,which is expected to solve this problem better.
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