مقاله Numerical analysis of pultruded GFRP box girders supporting adhesively-bonded concrete deck in flexure : تی پی بین

خلاصه مقاله

This paper presents the modeling of pultruded glass fiber reinforced polymer (GFRP) box girders consisting of built-up hat-shape sections and flat plates. The study addresses the effect of a thin concrete deck adhesively bonded to the top GFRP plate on flexural performance, as well as the behavior under positive and negative bending that simulates continuous girders. A three-dimensional finite element (FE) approach is proposed to predict the behavior of the GFRP system, including experimental validation. The efficacy of the girders is compared with other metallic box girders: carbon steel and corrosion-resistant metals, namely, stainless steel and aluminum. Failure is generally due to debonding of the concrete deck, and as such, the ultimate strength is not affected much by the girder material used. The study examines the single girder behavior as well as girder-group systems, to assess load distribution. It is shown that the AASHTO LRFD approach for load distribution can reasonably be used for the proposed girder systems. Design recommendations as to material selection are addressed to better use the girder system.

نویسندگان

Yail J. Kim [ Department of Civil Engineering, North Dakota State University, Fargo, ND, USA ]

Amir Fam [ Department of Civil Engineering, Queen’s University, Kingston, ON, Canada ]

کلمات کلیدی

Box girder Built up section Composite GFRP Concrete Load distribution

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Engineering Structures

Engineering Structures provides a forum for a broad blend of scientific and technical papers to reflect the evolving needs of the structural engineering and structural mechanics communities. Particularly welcome are contributions dealing with applications of structural engineering and mechanics principles in all areas of technology. The journal aspires to a broad and integrated coverage of the effects of dynamic loadings and of the modelling techniques whereby the structural response to these loadings may be computed.

حوزه های تحت پوشش : structural mechanics, structural engineering