回弹-取芯法检测结构实体混凝土抗压强度风险分析  

Risk analysis of compressive strength of concrete entitative structure inspected by rebound-coring method

作　　者：袁继强 李健硕 朱承嗣 王承悦 YUAN Jiqiang;LI Jianshuo;ZHU Chengsi;WANG Chengyue(Tianjin Architectural Design Institute Co.,Ltd,Tianjin 300074,China)

机构地区：[1]天津市建筑设计研究院有限公司,天津300074

出　　处：《建筑结构》2023年第21期112-117,共6页Building Structure

摘　　要：回弹-取芯法检测结构实体混凝土抗压强度,结合了回弹法与钻芯法,可充分发挥两种方法的优势,一定程度上解决了仅采用回弹法检测结构实体混凝土中由于混凝土内外质量不一致导致的误判风险,但该方法在抽样、统计、计算评价方法与其他方法存在较大差异。通过建立理论模型进行计算模拟,将回弹法、计量检验法、回弹-取芯法3种检验、评价方法进行比较,分析其在不同条件下的错判或漏判风险。结果表明,当总体分布未知时,回弹-取芯法的计算规则风险相对最大,不宜选择回弹-取芯法检验所拟的2类分布类型。The rebound-coring method for inspecting the compressive strength of concrete entitative structure combines the rebound method with the core drilling method,justly leveranging the advantages of both methods,which solves the risk of misjudgment caused by the inconsistency of concrete internal and external quality in the detection of concrete entitative structure by only using the rebound method,but there are great differences between this method and other methods in sampling,statistics,calculation and evaluation methods.A theoretical model for simulation was established,and three inspection and evaluation methods of rebound method,metrological test method and rebound-coring method were compared to analyze their risk of misjudgment or false negative under different conditions.The results show that when the overall distribution is unknown,the risk of the rebound-coring method is relatively highest,and it is not advisable to choose the rebound-coring method to inspect the proposed type of 2 types of distribution.

关 键 词：混凝土抗压强度 回弹-取芯法 回弹法 计量检验法 风险分析 

分 类 号：TU528[建筑科学—建筑技术科学]