Influence of Bimoment Restraints on the Load-Bearing Capacity of a Steel I-Beam
More details
Hide details
Faculty of Civil and Environmental Engineering, West Pomeranian University of Technology, Szczecin, Poland
Online publication date: 2020-12-31
Publication date: 2020-12-01
Civil and Environmental Engineering Reports 2020;30(4):33–47
The study presents an analysis of steel I-beam warping. The calculations were made for hot-rolled IPE200 hinged beams with different lengths. After determining load-bearing capacity using the GMNIA method, the beams were strengthened with bimoment restraints at each end. The changes in critical moment and load-bearing capacity were then evaluated. The study presents the manner in which the material and geometric imperfections have been determined. The GMNIA calculations were conducted using the Finite Element Method in Abaqus software. The results were then compared to results obtained with traditional methods and acquired from LT Beam software.
EN 1993-1-1 “Eurocode 3 : Design of steel structures – Part 1-1 : General rules and rules for buildings”, CEN, 2006.
EN 1993-1-1 “Eurocode 3: Design of steel structures – Part 1-1 : General rules and rules for buildings”, CEN, 1992.
EN 1999-1-1 “Eurocode 9: Design of aluminium structures – Part 1-1: General structural rules, CEN 2007.
Galambos, TV and Surovek, AE 2008. Structural Stability of Steel: Concepts and Applications for Structural Engineers”, 236-289.
Gosowski, B 2015. Bending and torsion of thin walled metal structures (in Polish).
Badari, B and Papp, F 2015. On Design Method of Lateral-torsional Buckling of Beams: State of the Art and a New Proposal for a General Type Design Method. Periodica Polytechnica Civil Engineering 59(2), 179-192.
Rykaluk, K 2012. Stability issues of metal structures (in Polish), 176-201.
Szalai, J and Papp, F 2010. On the theoretical background of the generalization of Ayrton-Perry type resistance formulas. Journal of Constructional Steel Research 66, 670-679.
Taras, A and Greiner, R 2010. New design curves for lateral-torsional buckling – Proposal based on consistent derivation. Journal of Constructional Steel Research 66, 648-663.
Giżejowski, M, Szczerba, R and Gajewski, M 2016. FEM models and simulation methods in lateral-torsional buckling analysis of steel elements (in Polish). JCEAA, t. XXXIII, z.63 (1/I/16), 339-346.
Giżejowski, M, Szczerba, R and Gajewski, M 2017. Influence of imperfections on LTB resistance of steel rolled and welded beams (in Polish). JCEAA, t. XXXIV, z.64 (3/I/17), 447-460.
EN 10034, Structural steel I and H sections – Tolerances on shape and dimensions, CEN, Brussels, 1996.
PN-EN 1090-2, Wykonywanie konstrukcji stalowych i aluminiowych – Część 2: Wymagania techniczne dotyczące wykonania konstrukcji stalowych, PKN, Warszawa, 2014.
Wierzbicki, K 2018. Influence of endplates on the value of critical moment. 2018 International Interdisciplinary PhD Workshop (IIPhDW), 142-146.
Kurzawa, Z, Rzeszut, K, Szumigala, M and Chybinski, M 2006. Influence of endplates on the Critical Moment of I-beams (in Polish). Inżynieria i Budownictwo Nr 3/2006, 163-166.
Piotrowski, R and Szychowski, A 2015. Lateral-torsional buckling of beams elastically restrained against warping at supports. Archives of Civil Engineering, Vol. LXI, Issue 4, 155-174.
Iwicki, P 2010. Sensivity analysis of buckling loads of bisymetric I-section columns with bracing elements. Archives of Civil Engineering, Vol. LVI, Issue 1, 69-88.
Snijder, HH, RP van der Aa, B. W E. M. van Hove 2018. Lateral torsional buckling design imperfections for use in non-linear FEA. Steel Construction: Design and Research 11(1), 49-56.
Vales, J and Stan, TC 2017. FEM Modelling of Lateral-Torsional Buckling using Shell and Solid Elements. Procedia Engineering 190, 464-471.