摘要
为避免稳定函数单元在轴力为拉、零、压时单元刚度矩阵表达式不一致,提出了MEP单元。单元是以满足约束条件及最小势能原理来构造的。计算结果表明,由MEP单元导出的挠度和刚度系数具有较高的精度。该单元方便应用于变截面及弹塑性梁柱结构中。
In order to avoid the difference of stiffness matrix of stable function element, the MEP element is proposed for nonlinear analysis of steel frame structures. The formulation of the element is based on the imposition of compatibility conditions at the end nodes as well as the principle of minimum potential energy. It is shown that the accuracy of deflection and stiffness coefficient is considerably high for steel frame structures.
出处
《建筑结构》
CSCD
北大核心
2005年第8期64-65,7,共3页
Building Structure
