新型多面体空间刚架结构的建模方法研究

Modeling methods for polyhedron space frame structures

简单介绍了气泡理论及多面体空间刚架结构构成的基本原理,并重点研究了这类新型空间结构的建模方法.在分析通用图形软件的实体作图法建模存在的主要问题及其原因的基础上,提出基于数学解析的嵌填式建模方法,编制了相应的程序,并成功应用于北京奥运会国家游泳中心"水立方"结构.研究表明,实体作图法只适用于中小型多面体空间刚架的建模,而嵌填式方法对于大型多面体空间刚架的建模具有很高的效率.

Following a brief introduction on the foam theory and the geometry forming method for the polyhedron space frame structure, the modeling method for this type of new space structure was investigated. By analyzing the main problems existed in the graphic modeling method utilizing the common programs such as AutoCAD, a new filling method based on mathematics was proposed for the modeling of polyhedron space frame structures. The corresponding computer program was developed and was applied successfully in the modeling of the water cube structure for Beijing Olympic national swimming center. It is shown that the graphic method is only suitable for the modeling of small structures, while the proposed filling method is of high efficiency to realize quick modeling for large structures.