Local Web Buckling in Tapered Composite Beams: A Parametric Study



Document title: Local Web Buckling in Tapered Composite Beams: A Parametric Study
Journal: Journal of the Brazilian Society of Mechanical Sciences
Database: PERIÓDICA
System number: 000312090
ISSN: 0100-7386
Authors: 1
2
Institutions: 1Universidade do Estado do Rio de Janeiro, Departamento de Engenharia Estrutural, Rio de Janeiro. Brasil
2Imperial College of Science, Technology and Medicine, Civil Engineering Department, Londres. Reino Unido
Year:
Volumen: 23
Number: 4
Pages: 411-425
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental
English abstract Composite flooring systems supported by tapered (varying web depth) beams are very attractive from an economic point of view. However, the tapered beam sections are fabricated from plate by welding, and are susceptible to imperfection effects. These may interact with the localised compressive stress field that is generated in the web at a slope change in the lower flange to cause local web buckling. A substantial parametric study using a non-linear elasto-plastic finite element program and covering practical ranges of the important parameters including the area of the tension flange, taper slope and web thickness is reported. Moment-rotation relations, peak moments and failure mechanisms have been predicted. The validity of the work is supported by the good correlation obtained between the results of the parametric study and experimental data
Disciplines: Ingeniería
Keyword: Ingeniería civil,
Arquitectura,
Ingeniería estructural,
Vigas ahusadas,
Vigas compuestas,
Estructuras de acero,
Elementos finitos,
Análisis
Keyword: Engineering,
Civil engineering,
Structural engineering,
Tapered beams,
Composite beams,
Steel structures,
Finite elements,
Analysis,
Architecture
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