Abstract
The paper presents an optimal design of timber-concrete composite floors based on multi-parametric mixed-integer non-linear programming (MINLP) optimization. For this purpose, the MINLP optimization model TCCFLOOR was developed. The model comprises an accurate objective function of the structure production costs, subjected to design, resistance and deflection constraints in order to satisfy the requirements of the ultimate and serviceability limit states according to Eurocode specifications. The multi-parametric MINLP optimization was executed for various design parameters like different vertical imposed loads on the structure, different structure spans, different alternatives of discrete cross-sections as well as different timber and concrete strengths. A recommended optimal design for timber-concrete composite floors was obtained and presented at the end of the paper, developed from previous MINLP optimization results. Economically suitable spans for timber-concrete composite structures were also found.
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