Multi-parametric MINLP optimization study of a composite I beam floor system

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• 作者：S. Kravanja ; ^{stojan.kravanja@um.si} ; T. Žula ; U. Klan&scaron ; ek
• 关键词：Composite structures ; Cost optimization ; Structure optimization ; Multi-parametric optimization ; Mixed-integer non-linear programming ; MINLP
• 刊名：Engineering Structures
• 出版年：2017
• 出版时间：1 January 2017
• 年：2017
• 卷：130
• 期：Complete
• 页码：316-335
• 全文大小：1734 K
• 卷排序：130

文摘

The paper presents a comparative study of an optimal design of composite steel and concrete floor structures based on the performed multi-parametric mixed-integer non-linear programming (MINLP) approach, and Eurocode specifications. Comparative diagrams and a recommended design for a composite floor system were determined. The study also answered some questions regarding the influence of unit prices on the optimal design, the most suitable position of the neutral axis, the competitive spans of the structures with welded and standard steel sections, the competitiveness of the plastic cross-section resistance when compared to the elastic resistance, etc.