江西建材Issue(12)：92-94,108,4.
超声断层成像技术在UHPC连接构件内部缺陷检测的应用研究
Application Research of Ultrasonic Tomography Technology in Internal Defect Detection of UHPC Connecting Components
摘要
Abstract
Three types of UHPC post cast beam with different connection lengths were designed and manufactured in this paper.Ultrasonic tomography technology was used to detect internal defects of the components before and after bending failure,and core sampling verification was conducted on the interface position between UHPC and ordinary concrete.The results indicate that strong reflection points of steel bars should be excluded in conjunction with the design drawings when using ultrasonic tomography technology to detect internal defects in components;strong reflection area in the ultrasonic imaging images increases significantly after bending failure;ultrasonic tomography detection results are consistent with the damaged core sampling results.Ultrasonic tomography technology has the advantages of intuitive results and high detection efficiency,and has good application prospects in non-destructive testing of internal defects in UHPC connecting components.关键词
超高性能混凝土/无损检测/超声成像/缺陷Key words
Ultra high performance concrete/Non-Destructive Testing/Ultrasonic tomography/Defect分类
建筑与水利引用本文复制引用
陈皓,石齐,李洁,薛盛龙,魏友..超声断层成像技术在UHPC连接构件内部缺陷检测的应用研究[J].江西建材,2024,(12):92-94,108,4.基金项目
江西省重点研发计划项目《基于UHPC连接的新型装配式建筑结构关键技术研究》(项目编号:20212BBG71010). （项目编号:20212BBG71010）
