To find the best cable position,a method making use of the sectional stress influence line of core concrete at arch footing is put forward.
提出利用拱脚管内混凝土截面应力影响线来寻找最佳扣索点位置,分别计算管内混凝土灌注阶段和单位扣索力下控制截面的应力。
A method for influence lines of statically indeterminate structure;
求解超静定结构影响线的一种方法
Based on the reciprocal theorem of work,the paper presented a method to calculate influence lines of internal forces with finite element.
利用功的互等定理,推出适用于有限元求解内力影响线的方法。
Its stiffness matrix, mass matrix and influence lines by kinematic method can be formulized explicitly.
从变形体虚功原理出发,推导了平面任意变截面梁单元的刚度阵和质量阵;从用户使用方便简单的角度提出了一种双线性变截面模型,在此基础上得到了梁单元的刚度阵、质量阵以及机动法求影响线公式的显式表达式。