combined stiffness matrix meaning in English

组合刚度矩阵

After having deduced the combined stiffness matrix considering the contribution of concrete , tendons and non - prestressed steel , a novel mixed analysis method ( mam ) based on finite element ( fe ) and asum to analyze time - dependent stress redistribution and structural internal force redistribution due to creep and shrinkage in pc bridges is presented . the obvious advantage of this method is that all time - dependent factors , which are took into account in asum , need not to be considered in fe , thus the accuracy of mam can be easily guaranteed by fe and asum , respectively . this method opens a new approach to analyze creep and shrinkage both conveniently and precisely
该法的特点是，有限元法列式中不考虑与时间效应有关的影响因素，仅完成弹性分析功能，所有与时间效应有关的影响因素均在全量形式自动递进法中考虑；因此，混合分析法的计算精度可通过各自独立的两方面来保证：有限元法弹性效应分析的精度和全量形式自动递进法时变效应分析的精度，为方便、准确的徐变效应分析提供了新途径。