期刊
STEEL AND COMPOSITE STRUCTURES
卷 47, 期 2, 页码 147-165出版社
TECHNO-PRESS
DOI: 10.12989/scs.2023.47.2.147
关键词
buckling-restrained braces; evolutionary multi-objective chimp optimization; niching concept; reinforced concrete; seismic structure design
This paper contrasts conventional seismic design with a design incorporating buckling-restrained bracing in three-dimensional reinforced concrete buildings. By improving the optimization algorithm and introducing new computational techniques, the design efficiency and performance are enhanced, and building costs are reduced. Additionally, a new method is proposed for calculating seismic and dead loads. Therefore, this research is significant for structural design.
The paper contrasts conventional seismic design with a design that incorporates buckling-restrained bracing in three-dimensional reinforced concrete buildings (BRBs). The suboptimal structures may be found using the multi-objective chimp optimization algorithm (MEN-ChOA). Given the constraints and dimensions, ChOA suffers from a slow convergence rate and tends to become stuck in local minima. Therefore, the ChOA is improved by niching and evolutionary operators to overcome the aforementioned problems. In addition, a new technique is presented to compute seismic and dead loads that include all of a structure's parts in an algorithm for three-dimensional frame design rather than only using structural elements. The performance of the constructed multi-objective model is evaluated using 12 standard multi-objective benchmarks proposed in IEEE congress on evolutionary computation. Second, MEN-ChOA is employed in constructing several reinforced concrete structures by the Mexico City building code. The variety of Pareto optimum fronts of these criteria enables a thorough performance examination of the MEN-ChOA. The results also reveal that BRB frames with comparable structural performance to conventional moment-resistant reinforced concrete framed buildings are more cost-effective when reinforced concrete building height rises. Structural performance and building cost may improve by using a nature-inspired strategy based on MEN-ChOA in structural design work.
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