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Experimental and numerical analysis of stiffened curved plates as bottom flanges of steel bridgesPiculin, Sara, gradbenica, 1988- ; Može, PrimožThis paper deals with the experimental and numerical evaluation of the buckling behaviour and ultimate resistance of stiffened transversally curved panels subjected to uniform axial compression. ... Furthermore, a verification procedure for curved stiffened panels is proposed that gives a good estimation of the maximum loads obtained from experimental and numerical tests. The procedure is in line with the design methodology of EN 1993-1-5, accounting also for panel curvature. Nine large-scale tests were performed on longitudinally and transversally stiffened plates made of high strength steel, namely S500 and S700. They were subjected to compressive stresses up to collapse. The nine specimens comprised of flat and curved plates that differed in material grade and geometric parameters, such as panel thickness, aspect ratio, size and shape of stiffeners. The effects of different parameters on the plate's resistance to pure compression are discussed. Moreover, a numerical model built in the general-purpose code ABAQUS is presented and verified against the test results regarding initial stiffness, ultimate resistance and failure mode. Numerical simulations (FEA), based on the test panel geometry, the measured initial geometric imperfections and elasto-plastic material characteristics from tensile tests, demonstrate very good agreement with experimental results.Vir: Journal of constructional steel research. - ISSN 0143-974X (Letn. 164, jan. 2020, str. 1-19)Vrsta gradiva - članek, sestavni del ; neleposlovje za odrasleLeto - 2020Jezik - angleškiCOBISS.SI-ID - 8964193
Avtor
Piculin, Sara, gradbenica, 1988- |
Može, Primož
Teme
ojačane ukrivljene pločevine |
eksperimentalne preiskave |
MKE |
začetne nepopolnosti |
jekleni mostovi |
tlačne napetosti |
gradbeništvo |
gradbene konstrukcije |
stiffened curved plates |
experimental investigation |
FEM |
initial imperfections |
steel bridges |
uniform compression |
civil engineering |
engineering structures
Vnos na polico
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Piculin, Sara, gradbenica, 1988- | 36228 |
Može, Primož | 24336 |
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