Numerical and theoretical investigation of bolted sleeve connections with rectangular hollow sections.
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Data
2023
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Resumo
This article presents a theoretical and numerical study of bolted sleeve connections with rectangular hollow sections (RHS) under axial tension and compression.
The geometric form of a hollow section provides resistance for high axial loads, torsion and combines effects, spreading its utilization in truss systems. In this context, the
sleeve connections proposed explore these characteristics of RHS and offer an attractive aesthetic appearance for the continuity of elements. The bolted sleeve connection
with RHS is formed by two outer tubes connected by an inner tube and staggered
bolts. Herein, a parametric study was developed for identification of the failure modes
in the connection. Finite element models with different geometric parameters and
number of bolts were created in commercial software. The width, depth and thickness of RHS tubes and diameter of bolts were variated. In the theoretical/numerical/
parametric results, the yielding gross section failure, the fracture through the effective
net area failure and the bearing failure were observed. These failure modes occurred
in both outer and inner tubes. The load results were compared to determine the resistance capacity of sleeve connections. The theoretical formulations were evaluated for
representation of the ultimate load of the failure modes.
Descrição
Palavras-chave
Sleeve connections, Rectangular hollow sections, Numerical analysis
Citação
OLIVEIRA, M. M. de et al. Numerical and theoretical investigation of bolted sleeve connections with rectangular hollow sections. REM - International Engineering Journal, Ouro Preto, v. 76, p. 21-27, jan./mar. 2023. Disponível em: <https://www.scielo.br/j/remi/a/CXQqqK46ntyJFWX7Nv4FNNn/?lang=en>. Acesso em: 15 mar. 2023.