摘要
前施工规范中对后张法预应力混凝土的孔道摩阻试验仅列出了试验方法,而孔道摩阻系数μ和偏差系数k没有一个适当的计算方法。采用最小二乘法直接求解孔道摩阻系数μ和偏差系数k,使之能更加符合实际情况。
The pore friction test of post-tensioning method prestressed concrete is been measured at construction site.However,there is no appropriate equation for calculation of friction resistance coefficient and bias coefficient.The author calculate the friction resistance coefficient and bias coefficient by least-squares method to make it compliance with the fact.
出处
《施工技术》
CAS
北大核心
2011年第S1期42-45,共4页
Construction Technology
关键词
最小二乘法
孔道摩阻系数
偏差系数
least-squares method
friction resistance coefficient of hole
bias coefficient
