AN IMPROVED SHAPE ANNEALING ALGORITHM FOR TOPOLOGICAL GENERATION OF SPATIAL TRUSS STRUCTURES
Renhua Wang1 and Xianzhong Zhao2
1) Ph.D., Assoc. Prof., Department of civil engineering, Jiangsu University of Science and Technology, China.
2) Ph.D., Prof., Department of structural engineering, Tongji University, China.
Abstract: This paper presents an optimization method named as improved shape annealing algorithm (ISA), to generate the structural configuration for the spatial truss structures. The method applied shape annealing algorithm to derive optimal structural shape, sizing and topology from an arbitrary initial design under stress and Euler buckling constraints. Meanwhile, fully stressed design (FSD) method was introduced to guide the topological construction to more rationally withstand external loads, once shape and topology optimizations are less efficient than sizing optimization in heuristic searching process of shape annealing schedule. The effectiveness of proposed approach was evaluated through the generation of three spatial truss structures. The resultant configurations obtained by ISA demonstrate its practicability and efficiency in comprehensive optimization problem such as conceptual design and structural optimization of spatial truss structures.
Keywords: shape annealing, fully stressed design, spatial truss structure, topological generation
Renhua Wang, Xianzhong Zhao. “AN IMPROVED SHAPE ANNEALING ALGORITHM FOR TOPOLOGICAL GENERATION OF SPATIAL TRUSS STRUCTURES.” In Proceedings of International Conference on Civil and Building Engineering Informatics (ICCBEI 2015), 74. Tokyo, Japan, 2015.