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Non-linear analysis of composite steel-concrete beams with incomplete interaction
Čas, Bojan (Author), Bratina, Sebastjan (Author), Saje, Miran (Author), Planinc, Igor (Author)

URLURL - Presentation file, Visit http://drugg.fgg.uni-lj.si/3601/ This link opens in a new window

Abstract
The flexibility of the connection between steel and concrete largely influences the global behaviour of the composite beam. Therefore the way the connection is modelled is the key issue in its structural analysis. Here we present a new strain-based finite element formulation in which we consider non-linear material and contact models. The computational efficiency and accuracy of the formulation is proved with the comparison of our numerical results with the experimental results of Abdel Aziz (1986) obtained in a full-scale laboratory test. The shear connectors are assumed to follow a non-linear load-slip relationship proposed by Ollgaard et al. (1971). We introduce the notion of the generalized slip, which offers a better physical interpretation of the behaviour of the contact and gives an additional material slip parameter. An excellent agreement of experimental and numerical results is obtained. using only a few finite elements. This demonstrates that the present numerical approach is appropriate for the evaluation of behaviour of planar composite beams and perfect for practical calculations.

Language:English
Keywords:steel-concrete composite beam, shear connection, interlayer slip, non-linear analysis, finite element method
Tipology:1.01 - Original Scientific Article
Organization:FGG - Faculty of Civil and Geodetic Engineering
Year:2004
Publisher:Techno Press
Number of pages:Str. 489-507
Numbering:Letn. 4, Št. 6
UDC:624.07
ISSN on article:1229-9367
COBISS.SI-ID:2661217 This link opens in a new window
Views:2275
Downloads:374
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Record is a part of a journal

Title:Steel and composite structures
Shortened title:Steel Compos. Struct.
Publisher:Techno-Press
ISSN:1229-9367
COBISS.SI-ID:2660961 This link opens in a new window

Secondary language

Language:English
Keywords:sovprežni nosilec, strižna povezava, zdrs med sloji, nelinearna analiza, metoda končnih elementov

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