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Optimum Design of Timber Roof Structural Members in the Case of Fire
Abstract
One of the most important tasks of structural engineers is the design of structural elements with appropriate cross-sections to ensure the balance of economy and safety in structural design. In this context, different numerical algorithms are developed for the optimum design of structural systems. In this study, the optimum design of the roof structural model made of wood is done using teaching-learning based optimization (TLBO) in case of fire-free and fire according to Eurocode 5. The sections of the existing timber roof structure in the literature are calculated in case of fire-free and fire (30 and 60 minutes of fire). The necessity of the proposed method is emphasized by comparing the obtained optimum cross-sections in the case of fire-free with the values available in the literature. As a result, the optimum cross-section of timber roof structural elements and the wood type is determined in a short time for the different fire situations where the cross-section and characteristic features change with time.
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