摘要
本文考虑了板桁组合结构桥面板的局部屈曲，剪力滞后和板桁梁段截面畸变、翘曲、扭转与剪切变形的影响，利用横向有限条带法构造了桥面板板段的局部空间变位模式，提出了板桁梁段有限元法。该方法自由度少，计算精度高，能用于大型板桥组合结构的空间计算。
The present research focuses on the spatial analysis of plate-truss composite stuructures. The influences of local buclding of deck, shear lag, section distortion, warping deformation, tWist and shear deformation are taken into account in the analysis. A plate-truss deck section finite element method is proposed in which the spatial local displacements are formulated using transverse finite strips. The method has high accuracy and less degrees of freedom, especially for spatial analysis of large plate-miss composite structures.
出处
《工程力学》
EI
CSCD
北大核心
1999年第4期65-72,77,共9页
Engineering Mechanics
基金
铁道部科技发展基金
关键词
板桁结构
横向有限条带
板桁梁段
有限元法
plate-truss composite structure
transverse finite strip
spatial local displacementmodel
finite elements of plate-truss deck
