20.500.12556/RUL-114376 Experimental and numerical analysis of stiffened curved plates as bottom flanges of steel bridges This 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. stiffened curved plates experimental investigation FEM initial imperfections steel bridges uniform compression civil engineering engineering structures ojačane ukrivljene pločevine eksperimentalne preiskave MKE začetne nepopolnosti jekleni mostovi tlačne napetosti gradbeništvo gradbene konstrukcije true true true Angleški jezik Slovenski jezik Znanstveno delo 2020-02-24 12:59:06 2020-02-24 13:05:31 2022-08-26 03:50:08 0000-00-00 00:00:00 2020 0 0 Str. 1-19 Letn. 164 jan. 2020 0000-00-00 Zaloznikova VTisku NiDoloceno 0000-00-00 0000-00-00 0000-00-00 2022-01-28 624.04 0143-974X 10.1016/j.jcsr.2019.105822 8964193 1326341 Piculin_Moze_R.pdf Piculin_Moze_R.pdf 1 B86553FA065B22F1417F018459CB75A1 145850fae19758d1ff6eb48be3732ab4b1f59de10705fda3fea2232c93aa3f2f 3427f20c-a1b8-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=126540 https://doi.org/10.1016/j.jcsr.2019.105822 1 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=126541 Fakulteta za gradbeništvo in geodezijo 0 0 0