A contribution to the study of simply-supported composite steel-concrete beams in ambient temperature and in fire situations / Uma contribuição ao estudo de vigas mistas aço-concreto simplesmente apoiadas em temperatura ambiente e em situação de incêndio

AUTOR(ES)
DATA DE PUBLICAÇÃO

2004

RESUMO

Composite steel-concrete beam have been commonly considered in steel-framed building used in civil engineering, not only in Brazil but also in the worldwide context. The efficiency of this structural element is directly related with the type of interaction between steel beam and concrete slab, which is assured using metallic elements called shear connectors, with the objective to transfer longitudinal shear forces from concrete slab to steel beam, in the interface, and avoid the vertical separation between concrete slab and steel beam (uplift). In this sense, the aim of the present work is to carry out a bibliographical review about composite steel-concrete beam, as well as propose a three dimensional non-linear procedure for modeling only full shear connection in composite beam. The three-dimensional numerical models constructed must be capable of predicting de response of composite beam, in ambient temperature an also in elevated temperatures (fire conditions). The computer program ABAQUS 6.3-1, based on finite element method, was used to analyze the numerical modeling. The accuracy of the three-dimensional numerical models are demonstrated by analyses of the results obtained with the models which are compared with the experimental results, obtained and presented by others researches

ASSUNTO(S)

fire composite structures numerical analysis estruturas mistas análise numérica steel-concrete composite beams incêndio vigas mistas aço-concreto composite beams

ACESSO AO ARTIGO

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