薄壁箱梁考虑剪力滞效应几何刚度矩阵的推导

The thin wall beam considering shear dint hysteresis effecting geometry matrix deduce

以能量变分法为理论基础,根据最小势能原理,计算出薄壁箱梁考虑剪力滞效应的弹性刚度矩阵,并推导了钢箱梁的几何刚度矩阵,得出所求的弹性刚度矩阵退化后与梁单元的弹性刚度矩阵是吻合的,所求的几何刚度矩阵退化后与文献中相应的矩阵是吻合的结论。

The paper basds on the energy changes to divide method theories, according to minimum certainly can principle, computes the thin wall beam consider to shear the flexibility of the dint hysteresis effect geometry matrix, and deduces the steel a beam geometry matrix, computing matrix and deteriorating matrix is to fit together, and geometry matrix after deteriorating the homologous matrix of literature fits together result.