混凝土无损检测回归方程的研究

Research about concrete nondestructive examination'sregression equation

以标准养护试块的试验结果建“立无损参量-试块强度”的回归测强方程。以同条件养护试块的试验结果,采用修正系数法,提出修正后的更接近工程实际的“无损参量-实体强度”回归测强方程。依托东北大学综合科技楼工程,进行现场无损检测,利用修正的回归方程推算结构实体的强度。回归结果与工程实际符合,可为建立沈阳地区混凝土测强回归方程提供参考。

Based on standard curing blocks＇ experimental results, regression strength equation with nondestructive parameter-test block strength is established. According to blocks＇ test results under the same curing condition and adopted correction factor method, corrected regression strength equation with nondestructive parameter-entity strength that is approximated to actual project is brought forward. Related to project of NEU synthesis scientific and technical building, nondestructive check is done on the spot and structural entity strength is concluded by corrected regression equation. Regression conclusion accords with project fact and brings references to building shenyang＇s regional regression strength equation.