论文部分内容阅读
本文综述了“广义”板梁结构的三种假定;根据板的经典理论,考虑了材料和构造上的正交异性的特点,以及扭转对板梁结构的影响。应用了“广义”刚度的概念,系统地建立了与各种边界状态有关的典型结点的差分格式和未知位移的系数计算式。这一结果可用于三种假定条件下的正交异性和各向同性的:楼盖、网架和梁系结构;弹性地基上的板梁及梁筏结构等等的变形、内力计算。与主要参考文献比较,提高了收敛性和计算精度,可比较板梁抗扭度刚度对结构的影响。扩大了应用范围,便于用统一的程序进行电算。
In this paper, three assumptions of the “generalized” plate-beam structure are reviewed. According to the classical theory of the plate, the characteristics of the orthotropic material and structure, and the influence of the torsion on the plate-beam structure are considered. Applying the concept of “generalized” stiffness, the differential format of a typical node related to various boundary states and the coefficient calculation formula of unknown displacement are systematically established. This result can be used for orthotropic and isotropic in three hypothetical conditions: floor slabs, grids, and beam structures; deformations and internal forces of plate girders and girder structures on elastic foundations. Compared with the main references, the convergence and calculation accuracy are improved, and the influence of the stiffness of the plate girder on the structure can be compared. The scope of application has been expanded to facilitate the use of a unified program for computing.