Intelligent design algorithm for branching structures based on numerical inverse hanging method

被引：0
|
作者：
Zhao Z. [1 ,2 ]
Wu J. [1 ]
Yu D. [1 ]
Wu G. [2 ]
机构：
[1] School of Civil Engineering, Liaoning Technical University, Fuxin
[2] School of Civil Engineering, Southeast University, Nanjing
来源：
Jianzhu Jiegou Xuebao/Journal of Building Structures | 2022年 / 43卷 / 04期
关键词：
Branching structure; Form-finding analysis; Length optimization; Numerical inverse hanging method; Saturated branching structure; Topology optimization;
D O I：
10.14006/j.jzjgxb.2020.0374
中图分类号：
学科分类号：
摘要：
The branching structures have been widely adopted in large scale building structures and landmark buildings due to beautiful appearance and high structural efficiency. The key point of branching structure research is not only to achieve the form-finding, but also to determine the optimal topology of branching structure, that is, to find the connection between different nodes that can effectively bear the external load. A numerical algorithm for topological optimization of branching structures was proposed based on the previous research results. This algorithm removes branches according to the efficiency of components, and finally achieves the optimization goal of each level. By integrating the numerical algorithm of topology optimization with the algorithms of form-finding and component length optimization, an intelligent design algorithm system of branching structure was proposed. The algorithm can automatically achieve the form-finding of the branching structure according to the external load distribution and remove the inefficient components, until the number of remaining components reaches the optimization goal. The algorithm can simplify the path of force flow, automatically optimize the spatial distribution of the component according to the load distribution, and optimize the component length according to the internal force. In order to prevent the deletion of high-efficiency components, this algorithm contains the component resurrection function, which can activate the components that have changed from low-efficiency to high-efficiency in the form-finding process. © 2022, Editorial Office of Journal of Building Structures. All right reserved.
引用
收藏
页码：86 / 94
页数：8
相关论文
共 17 条
  • [1] HUNT J, HAASE W, SOBEK W., A design tool for spatial tree structures, Journal of the International Association for Shell and Spatial Structures, 50, 1, pp. 3-10, (2009)
  • [2] CHEN Jun, ZHANG Qilin, XIE Buying, Research and application of dendritic column in long-span spatial structure, Steel Construction, 25, 3, pp. 1-4, (2010)
  • [3] KOLODZIEJCZYK M., Verzweigungen mit faden: einige aspekte der formbildung mittels fadenmodellen: SFB230, pp. 101-126, (1992)
  • [4] VON BUELOW P., A geometric comparison of branching structures in tension and compression versus minimal paths, Advances in Structural Engineering, 19, 4, pp. 689-702, (2016)
  • [5] ISLER H., Concrete shells derived from experimental shapes, Structural Engineering International, 4, 3, pp. 142-147, (1994)
  • [6] WU Yue, XU Yunlei, LI Qingpeng, Effective length factors for branching structures, Journal of Building Structures, 39, 6, pp. 53-60, (2018)
  • [7] WU Yue, ZHANG Jianliang, CAO Zhenggang, Form-finding analysis and engineering application of branching structures, Journal of Building Structures, 32, 11, pp. 162-168, (2011)
  • [8] WU Yue, ZHANG Jianliang, CAO Zhenggang, Et al., Form-finding analysis and engineering application of branching structures, Journal of Building Structures, 34, 9, pp. 118-123, (2013)
  • [9] WU Yue, LI Qingpeng, SHEN Shizhao, Computational morphogenesis method for space structures based on principle of inverse hanging experiment, Journal of Building Structures, 35, 4, pp. 41-48, (2014)
  • [10] ZHANG Qian, CHEN Zhihua, WANG Xiaodun, Et al., Form-finding of tree structures based on slide cable element, Journal of Tianjin University (Science and Technology), 48, 4, pp. 362-372, (2015)
12