基于Grasshopper的参数化方法在结构设计中的应用

Application of Parametric Method based on Grasshopper in Structure Design

参数化设计在建筑领域的应用越来越广泛,尤其是在复杂超限项目的设计中,结构工程师需要与建筑师密切配合,借助参数化工具来完成结构建模分析。犀牛软件(Rhino)和Grasshopper插件作为当前主流的参数化平台,不仅为建筑设计开拓了新的想象空间,同时也为结构设计扩展了解决问题的方法。本文介绍了参数化设计的概念和发展以及其在可编译性、可视性和可扩展性方面的优势,通过算例介绍了基于Grasshopper参数化结构分析建模的基本方法及其在多方案对比和应对颠覆性条件修改时的优势,并对Grasshopper在超高层、大跨度和非线性曲面等复杂结构中的应用案例进行分析,为结构工程师解决复杂问题提供了新的思路。

The parametric design is extensively used in the field of architecture,especially for the structure design of complex limit-exceed projects. Structure engineers should closely cooperate with architects to accomplish the structural modeling analysis with the aid of parameterized tools. The parametric platform based on Rhino and Grasshopper,which is the dominant parameterized platform currently,not only expends the imagination for architectural design,but also extends the ideas of solving the problem for structure design. This paper introduces the concept and development of parametric design,and shows its advantages in programming,visuality and secondary development scalability. The basic procedure of parametric modeling based on Grasshopper is described with an example,which shows its merits in multi scheme design study and dealing with changes. Meanwhile,the application cases of Grasshopper in super high-rise,long-span and nonlinear shell complex structures are also analyzed,which provides new ideas for structural engineers to solve complex problems.