房屋结构检测数据回归分析

以回弹法检测混凝土抗压强度为研究背景,分析分别以河砂和山砂拌制的混凝土对检测结果的影响,利用概率统计方法求出贵州地区以山砂拌制的混凝土的抗压强度,然后用回归分析方法计算推定系数k0值。计算结果表明,计算出的k0明显比JGJ/T23-2001标准规定的k值偏小,如果按照现行的国家标准规定的k值计算贵州地区混凝土强度,最终会对检测结果的判断造成误差,使检测得到的混凝土强度偏离实际混凝土的强度。

Regression Analysis of Test Data of Housing Structure

Based on the compressive strength of concrete with rebound method as the research background,the influence of the concrete by river sand and hill sand respectively on the test results was analyzed.The method of probability statistics was utilized to work out the compressive strength of concrete with hill sand in Guizhou,and then the method of analysis of regression was used to work out the value of ko.The calculation shows the value of ko is smaller obviously than the value of k of the standard of JGJ /T23-2001.If using the value of k of the current national standard to calculate the concrete strength in Guizhou,it will eventually cause the error to the testing result,and it also make the result of detection of concrete strength deviated from the true value.