基于Revit二次曲面参数化设计的研究

发布时间：2018-03-05 20:01

本文选题：BIM　切入点：二次开发　出处：《大连理工大学》2016年硕士论文　论文类型：学位论文

【摘要】：近年来,空间网格结构尤其是网壳结构迅速发展,其兼有杆系结构和薄壳结构受力合理、跨度大的特点,具有非常广阔的应用前景。网壳结构节点和杆件数量巨大,但传统的设计方法仍是以手工建模为主。近年来,随着信息技术的飞速发展,计算机及相关软件在网壳结构设计领域中的应用日益广泛,尤其是建筑信息模型(BIM)技术的出现,大大提高了网壳设计及施工的效率。作为BIM重要建模软件之一的Revit,因具有友好的界面和便捷的使用性及参数化设计理念,成为应用研究的热点。从已有文献看,通过对Revit Structure进行二次开发可以实现单层球面网格的参数化生成及进行空间网架的建模和工程量统计。但对于Revit二次曲面网壳设计,仍主要依赖于菜单栏命令,对于需要处理大量坐标数据的网壳设计工作量大且易出错。本文在已有研究成果基础上,结合网壳建模过程,应用Revit API实现具有对椭圆抛物面、双曲抛物面等网壳结构在Revit中参数化设计功能。本文的主要创新点如下：(1)以Revit概念体量族为平台,结合《JGJ7-2010空间网格结构技术规程》实现了常用单层二次曲面网壳在Revit环境下的自动生成,完成常用单层二次曲面网壳结构的参数化建模,弥补了软件二次曲面建模的不足。(2)自动生成二次曲面网壳基于有限元分析软件ANSYS的命令流,可在ANSYS中自动建模,划分单元,进行网壳结构静力分析。实现了Revit及ANSYS有效集成。(3)可将计算结果反馈给用户,用户根据计算说明书适当调整设计方案。经实例验证,本文编制的二次曲面建模插件可以实现单层网壳结构的快速建模及初步设计,从而将设计人员最大程度从传统建模方式中解放出来,有更多的时间处理设计方案比选及方案修改工作。
[Abstract]:In recent years, the space grid structure, especially the latticed shell structure, has developed rapidly. It has the characteristics of reasonable stress and large span of the rod system and thin shell structure, and has a very broad application prospect. The number of nodes and members of the latticed shell structure is huge. In recent years, with the rapid development of information technology, the application of computer and related software in the field of reticulated shell structure design is increasingly extensive, especially the emergence of building information model (BIM) technology. As one of the important modeling software of BIM, Revit has become a hotspot in application research because of its friendly interface, convenient use and parameterized design idea. Through the secondary development of Revit Structure, the parameterized generation of single-layer spherical meshes, the modeling of space grid and the quantity statistics of space grid can be realized. But for the design of Revit Quadric reticulated shell, it is still mainly dependent on the command of menu bar. The design of reticulated shell which needs to deal with a large amount of coordinate data is heavy and error-prone. Based on the existing research results and combined with the modeling process of reticulated shell, Revit API is used to realize the paraboloid of ellipse. The parameterized design function of hyperbolic paraboloid latticed shell structure in Revit. The main innovation of this paper is as follows: 1) based on the Revit concept volume family, Combined with the Technical Specification for JGJ7-2010 Space Grid structure, the automatic generation of single-layer conic reticulated shells in Revit environment is realized, and the parameterized modeling of common single-layer conicoid reticulated shells is completed. It makes up for the deficiency of software Quadric surface modeling. It can automatically generate the command stream of Quadric reticulated shell based on finite element analysis software ANSYS, and can automatically model and divide the unit in ANSYS. The static analysis of reticulated shell structure is carried out. The effective integration of Revit and ANSYS is realized. The calculation result can be fed back to the user. The user adjusts the design scheme according to the calculation instruction. The Quadric Surface Modeling Plug-in developed in this paper can realize the rapid modeling and preliminary design of single-layer latticed shell structure, thus liberating the designer from the traditional modeling method to the greatest extent. There is more time to deal with the design scheme than the selection and modification of the scheme.
【学位授予单位】：大连理工大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TU399

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