基于Grasshopper及ANSYS的空间结构参数化建模与一体化分析程序的二次开发与应用

Secondary development and application of spatial structure parametric modeling and integrated analysis program based on Grasshopper and ANSYS

自由曲面为建筑师提供了更多造型可能,近年越来越多的自由曲面运用在体育场馆等大跨度建筑上,要获取既满足结构受力又经济美观的结构方案,结构往往需要进行多参数、多结构形式的优化比选。基于Grasshopper参数化设计平台,利用工具命令语言TCL/TK、ANSYS的参数化程序设计语言(APDL)及Python语言进行程序的二次开发,实现了针对空间结构参数化建模、有限元分析及计算结果优选的一体化联动处理,显著提高了工作效率。以一体育馆屋面案例,完成了参数化建模、计算分析及截面优选的一体化联动计算示例,验证了该程序的有效性和实用性,可为空间结构的参数化建构和一体化分析提供参考。

Free-form surfaces provide architects with more modeling possibilities.In recent years,more and more free-form surfaces are used in long-span buildings such as stadiums and gymnasiums.In order to obtain structural schemes that not only satisfy the structural stress but also economical and beautiful,structures often need to be optimized and selected with multiple parameters and multiple structural types.This paper is based on Grasshopper,using TCL/TK,APDL and Python to carry out the secondary development of the program.The integrated processing of parametric modeling,finite element analysis and optimization of calculation results for spatial structures is realized,which significantly improves the work efficiency.In this paper,a gymnasium roof case is selected to complete the parametric modeling,finite element analysis and cross-section optimization examples,which verifies the effectiveness and practicability of the program,and can provide a reference for the parametric modeling and integrated analysis of spatial structure.