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Efficient form-finding algorithm for freeform grid structures based on inverse hanging method
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AI
DOI：10.1016/j.jobe.2021.103746.png)
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Abstract
En 中文
Grid structures and branching columns have been widely adopted due to their high structural efficiency and novel appearance. High structural efficiency must be achieved through a strict form-finding analysis. Existing algorithms are mainly applicable for grid structures or branching columns only. However, the form-finding of upper grid structures and the lower branching columns are mutually affected. A form-finding algorithm is needed for grid structures supported by branching columns. In the present work, an efficient form-finding algorithm suitable for grid structures is initially proposed, and the feasibility of this algorithm is verified through three examples. Then, the form-finding algorithm for grid structures is integrated with the form-finding algorithm of branching columns. Results indicated that the proposed algorithm can be used for form-finding analysis of various grid structures supported by branching columns. This work was conducted using a general finite element analysis program and can be easily mastered by engineering designers while avoiding tedious programming.
Keywords:
Grid structure
Form-finding analysis
Inverse hanging method
Branching column
Freeform surface
Fully stressed design
Journal
IF:
7.4
Papers:
1.7W
Citations:
6.6W
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