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Numerical analysis of cellular steel beams failure modes in fire conditions

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Detalhes bibliográficos
Resumo:Beams with long spans are increasingly used in the steel building constructions and usually are used with openings for technical equipment and ventilations systems cut in their web. These elements are structural steel beams that are deeper than normal rolled sections, with distributed circular openings, or other like squared or hexagonal, that are produced by cutting and welding hot rolled steel sections (Westok method). The split halves are then offset and welded together to form a deeper beam with full circular or hexagonal shaped web openings, which results in a beam approximately 40-60% deeper than its solid parent section, [1], see Figure 1. This method reduces the floor height and therefore the overall height of building.
Autores principais:Jaqueline, A.S.
Outros Autores:Paôla, R.D.; Mesquita, L.M.R.
Assunto:Cellular beams Fire resistance Failure modes Numerical modelling
Ano:2019
País:Portugal
Tipo de documento:documento de conferência
Tipo de acesso:acesso aberto
Instituição associada:Instituto Politécnico de Bragança
Idioma:inglês
Origem:Biblioteca Digital do IPB
Descrição
Resumo:Beams with long spans are increasingly used in the steel building constructions and usually are used with openings for technical equipment and ventilations systems cut in their web. These elements are structural steel beams that are deeper than normal rolled sections, with distributed circular openings, or other like squared or hexagonal, that are produced by cutting and welding hot rolled steel sections (Westok method). The split halves are then offset and welded together to form a deeper beam with full circular or hexagonal shaped web openings, which results in a beam approximately 40-60% deeper than its solid parent section, [1], see Figure 1. This method reduces the floor height and therefore the overall height of building.