建立回弹现场测强曲线的位置参数法

工程上迫切需要在现场数据较少的情况下,建立高精度和高可靠度的现场测强曲线(经验公式)。本文利用位置参数法,提出了一种回弹法现场测强曲线(经验公式)。此曲线(经验公式)仍运用原有的幂函数形式并保持回归参数不变,通过增加位置参数反映现场试验的个性信息。此曲线(经验公式)融合了所在地区混凝土强度值、回弹值、碳化深度值之间的共性趋势和现场检测得到的反映现场情况的个性信息,而且解决了地区测强曲线(经验公式)不能完全描述现场的实际情况,而现场检测数据一般不能满足制定现场专用测强曲线(经验公式)要求的问题。在建筑结构无损检测中,利用本文提出的测强曲线(经验公式)可以极大地提高检测精度和检测结果的可靠性,使检测结果更加符合施工现场的实际情况。

Location parameter method for building rebound in-situ strength curve

It is urgent for engineering to build high accuracy and high reliability in-situ strength curve(empirical formula) for lack of in-situ data.Using the method of location parameter,the rebound in-situ strength curve(empirical formula) is put forward in the paper.In the curve(empirical formula),the original power function is used and the regression parameter is not changed.But through adding location parameter to reflect the personal information of in-situ test,concrete strength value,rebound value,carbonization depth value and personal information of in-situ test are combined.Moreover,the problems i.e.the regional strength curve(empirical formula) can't completely describe the actual in-situ condition and the in-situ test data can't meet the need of making in-situ special strength curve(empirical formula),are solved.In the nondestructive test of the building structure,(using) this strength curve(empirical formula),the test accuracy and the reliability of the test results are improved.The test results are suitable for in-situ actual condition.