钻芯-超声对测法判定混凝土构件烧伤深度的实践应用  

On application of ultrasonic core drilling method in assessment of burn depth of concrete members

作　　者：张弼伟[1] Zhang Biwei(Shanxi Academy of Building Sciences Group Co.,Ltd.,Taiyuan Shanxi 030001,China)

机构地区：[1]山西省建筑科学研究院集团有限公司,山西太原030001

出　　处：《山西建筑》2024年第12期39-41,65,共4页Shanxi Architecture

摘　　要：准确判定混凝土构件的烧伤深度,是火作用后混凝土结构加固修复的前提。围绕某混凝土框架地下车库的火灾案例,阐述了火作用后混凝土构件的损伤特点,根据超声波测试混凝土构件表层损伤厚度的原理,提出了钻芯-超声对测法对混凝土构件烧伤深度进行测试,可为其他火灾后混凝土检测鉴定中的构件烧伤深度的测定提供借鉴。The paper indicates the accurate judgment of the concrete members’burn depth is the premise for the consolidation and repair of the concrete structures after fire actions,illustrates the damaged characteristics of the concerte members after the fire action with the fire accident of some concerte frame underground garage,and points out the ultrasonic core drilling method can be adopted in testing the burn depth of the concrete members according to the principle of testing the damaged depth of the concrete members with the ultrasonic test method,so as to provide some reference for testing the burn depth of the members during the concrete judgment after other fire accidents.

关 键 词：火灾 混凝土 超声波 烧伤深度 

分 类 号：TU375.4[建筑科学—结构工程]