NURBS-Based Parametric Modeling Method for Metal Spatial Curved-twisted Member

Tingjun Miao; Qilin Zhang; Yanlei Man; Yuchao Zhao

doi:10.16670/j.cnki.cn11-5823/tu.2023.05.12

Citation: Tingjun Miao, Qilin Zhang, Yanlei Man, Yuchao Zhao. NURBS-Based Parametric Modeling Method for Metal Spatial Curved-twisted Member. Journal of Information Technologyin Civil Engineering and Architecture, 2023, 15(5): 68-73. doi: 10.16670/j.cnki.cn11-5823/tu.2023.05.12

2023, 15(5): 68-73. doi: 10.16670/j.cnki.cn11-5823/tu.2023.05.12

NURBS-Based Parametric Modeling Method for Metal Spatial Curved-twisted Member

Tingjun Miao ^1,, Qilin Zhang ^1,2,, Yanlei Man ^1,2,, Yuchao Zhao ^3,

1.	College of Civil Engineering, Tongji University, Shanghai 200092, China
2.	Shanghai Tonglei Civil Engineering Technology Co., Ltd, Shanghai 200092, China
3.	Shanghai Construction No.4(Group) Co., Ltd., Shanghai 201103, China

Web Publishing Date: 2023-10-20

Fund Project: 国家自然科学基金 51738009

Aiming at improving the efficiency of commonly used modeling methods of such members, this paper proposes a NURBS-based parametric modeling method for Metal spatial curved-twisted member. This NURBS-based parametric modeling algorithm and a software design are put forward and applied by programming. The method has following three characteristics: firstly the system can process input of axis, section and directions of section and generate 3D solid model of metal spatial curved-twisted member. Secondly the system supports parametric modeling and modification. Thirdly, the model generated by the system include necessary nongeometric information. The utility of the method and the improvement of efficiency are verified through analysis and modeling experiment of actual engineering project.

Key words: Spatial Curved-twisted Member, 3D Solid Model, Parameterization, Program Design

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