To cut down great calculation of assembling and disassembling of stiffness matrix in the nonlinear procedure, the initial stress method is introduced to resolve the nonlinear equations.
使用初应力法对非线性方程组进行迭代计算，避免了组装和分解总体刚度矩阵的繁杂而庞大的运算。
2
Based on the constraint matrix method developed by Japanese scholars, a generalized constraint matrix method was proposed for calculation of the temperature stress of RCCDs.
在日本学者提出的约束矩阵法的基础上，提出了用来计算碾压混凝土坝温度应力的广义约束矩阵法。
3
Displacement of stress-resultants computation technique of semi-rigidly connected steel frames inclucing stiffness matrix method, hand calculation method has been proposed.