Constructability-driven design of frame structures with state-space search methods
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Date
2024-11
Publication Type
Journal Article
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yes
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Abstract
In the design of frames and trusses, the relationship between the structural form, the construction sequence, and the structural behavior during construction is rarely systematically considered. This paper proposes a method to systematically consider constructability in design, specifically focusing on minimizing the maximum displacement or stress during construction. The paper presents the formulation of the optimal assembly sequencing problem as a state-space search with a unique design of the search heuristic and constraint bounding schemes. It proposes three variants of heuristic search algorithms for finding a feasible sequence, a diverse set of feasible sequences, and an optimal sequence, respectively. These algorithms are tested on a case study structure to showcase their ability to navigate the combinatorial space of assembly sequences, and provide means for designers to incorporate sequence-related performance into conceptual structural design.
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published
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Journal / series
Volume
167
Pages / Article No.
105711
Publisher
Elsevier
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Edition / version
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Software
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Subject
sequencing; Scaffold-free; Assembly