Analysis of the distribution of the shear stress in the interface steel-concrete of partially encased composite columns / Analise da distribuição das tensões de cisalhamento na interface aço-concreto de pilares mistos parcialmente revestidos

AUTOR(ES)
DATA DE PUBLICAÇÃO

2008

RESUMO

The rational use of the steel and concrete in buildings, in the composition of structural sections is a economically form and structural viable, mainly in multi storey buildings. Among the vast field called "steel-concrete composite structures", we can characterize the composite columns encased like a profile of structural steel of the type "I" or "H" covered with concrete, longitudinal and transversal bars, and shear connectors in flange and web. For determination of the strength of the composite columns, it starts of the basic hypothesis that there is complete interaction among the two materials, and that there is not relative relationship among the two surfaces. Despite these aspects, this work presents three-dimensional numeric models of composite columns with the goal of simulating shearing structural behavior. The simulations were made using the software ANSYS version 9.0, based on the Finite Element Method (FEM). With the purpose of validating the analysis strategy numeric models it were built comparing the results obtained with the coming of experimental analysis, extracted from works presented by other researchers. From this numerical analysis it was applied the simplified method proposed by ABNT/NBR:14323/99 for the design of a partially encased composite column, comparing the analytical results with the coming of numerical analysis using FEM, and identifying the regions of loads application and transfer in the interface steel-concrete

ASSUNTO(S)

construção mista colunas metalicas analise numerica - congressos steel columns aço - estruturas steel composite construction numerical analysis

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