摘要
用数理统计方法建立了低松弛钢绞线松弛试验数据的线性回归模型，用于推算１０００ｈ松弛值。根据计算结果．能够分析和判定试样是否满足规范要求，并能对松弛试验的有效性和回归结果可靠性进行评价。
linear regression model of relaxation test data for low relaxation PC strand has been established with mathematical statistics method, to be used for calculating 1 000 hours relaxation forecast value. On the basis of calculating, you can analyse and ascertain whether the specimens comply with the requirements of specification, and even assess the validity of test and the reliability of regression results.
出处
《金属制品》
1996年第6期31-36,共6页
Metal Products
关键词
松弛
试验数据
线性回归模型
钢绞线
ow relaxation PC strand
relaxation test data
linear regression model
forecast value
confidence interval
