高层建筑厚板转换层有限元FETP软件包及其应用

Analysis of Thick Plate Transition Floor in Highrise Building by Finite Element Software Package FETP

高层建筑厚板转换层的结构分析目前仍未得到很好的解决。本文基于Ｍｉｎｄｌｉｎ假设，建立了中厚板八节点等参单元，很好地满足了厚板转换层结构分析的需要。本文应用计算机辅助设计理论及科学计算可视化技术，编制了相应的软件包，在工程应用中取得了满意的结果。该软件包仅需极少量的几何及荷载信息，便可自动生成有限元分析所需的信息。原始数据及生成的有限元网格均用图形显示，以便校核。对计算结果可绘制任一剖面上的位移、内力曲线及整板的位移。内力等值线。

Based on the Mindlin hypothesis, a medium thick plate eight-node isoparametric element has been established in this paper, which can well meet the requirements for analyzing thick plate transition floor in highrise buildings. Applying the theory of CAD and the technology of visualization in scientific calculation, a relevant software package has been compiled with satisfactory result for practical use. This software can generate the informations for finite element analysis automatically with very few source geometric and load information. The source data and the grid generated by the front processing program can be drawn out and displayed on screen so as to be convenient for checking' The software can also give displacement and internal force diagrams for any section as well as the isogram of displacements and internal forces on the whole plate.