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- W2604890643 abstract "Many vacant buildings that are reused are constructed in concrete. With concrete, one thought to have found a solution for the fire resistance of buildings. Today it appears that the fire resistance of concrete is not always a matter of course. Therefore, it is important to properly asses the fire resistance of existing concrete buildings. With the intention to help the structural engineers in the future and to smoothen the process of the fire resistance assessment, this thesis summarizes and discusses the main points of attention concerning the determination of the fire resistance of existing concrete buildings. This is done by means of relevant literature, interviews, and a case study. The results of this research show that a structural engineer encounters several difficulties while assessing the fire resistance, beginning with the fire resistance requirements. Although the fire resistance requirements are slightly adapted and supplemented over the years, these requirements are still unclear and the backgrounds of these performance requirements are not explained in the Building Decree. In combination with the limited knowledge of the municipalities and the fire brigade, this could lead to unmotivated high demands and a difficult use of the principle of equivalence. Besides the knowledge of the municipalities and the fire brigade, the knowledge of the structural engineer himself is also limited. Although there are many temperature effects known, it appears to be difficult to get an idea of the fire resistance of the concrete material, as well as the structural behaviour under fire conditions. For these reasons, it will take some time before the calculation methods in the Eurocode could be supplemented with more detailed methods. Even though the current Eurocode recommends to assess the structure as a whole and notes that the imposed deformations should be taken into account, the Eurocode mainly gives simple calculation methods concerning individual elements or small parts of the structure. However, despite all these difficulties, this study also makes clear that it is still possible to deal with a fire resistance assessment of an existing concrete building in a more efficient way, partly due to the fact that the consequences of thermal expansions do not always have to be disadvantageous. Based on all the collected information, this thesis is concluded with a recommended approach for the structural engineer to assess the fire resistance of an existing concrete building." @default.
- W2604890643 created "2017-04-14" @default.
- W2604890643 creator A5052826003 @default.
- W2604890643 date "2016-01-01" @default.
- W2604890643 modified "2023-09-26" @default.
- W2604890643 title "Fire resistance of existing structures: Assessing the fire resistance of existing concrete buildings" @default.
- W2604890643 hasPublicationYear "2016" @default.
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