Influence of the End-Plate Thickness on the Steel Beam-to-Column Joint Stiffness when Subject to Bending

• Autorzy: Maślak M. , Pazdanowski M.

Identyfikatory

DOI

10.7862/rb.2018.31

• Języki publikacji: EN

Abstrakty

EN

Based on the numerical simulation performed within the Abaqus computational environment for a typical end-plate beam-to-column joint the influence of the endplate thickness on the effective joint rigidity has been verified. The initial joint rigidity at first determined for 20 mm thick end-plate has been compared with rigidity of the joint constructed with substantially more flexible end-plates 10, 8 and 6 mm thick. In all the considered cases the column was equipped with horizontal ribs stiffening the web at the height of beam top and bottom flange. No diagonal ribs were applied. In addition the column flange at the zone directly adjacent to the beam end-plate in all the analyzed cases has been set to 30 mm. This way it did not affect the computationally determined rigidity of considered joints. Juxtaposition of M-ϕ curves characterizing the considered joints and depicting the relationship between the applied bending moment and relative change of the initial angle between undeformed axes of beam and column in the analyzed frame indicates qualitatively different modes of destruction of the considered joints, and thus different computational models determining their bearing capacity. In the first case obtained parameters seem to indicate that the joint is nominally rigid but in all the remaining cases the bearing capacity seems to be exhausted by the increasing deformation of the more and more flexible end-plate.

Słowa kluczowe

EN

beam-to-column steel end-plate joint; end-plate thickness; joint flexibility; initial stiffness; numerical simulation

• Wydawca: Oficyna Wydawnicza Politechniki Rzeszowskiej
• Czasopismo: Czasopismo Inżynierii Lądowej, Środowiska i Architektury / Journal of Civil Engineering, Environment and Architecture
• Rocznik: 2018
• Tom: z. 65, nr 2
• Strony: 145--156
• Opis fizyczny: Bibliogr. 6 poz., rys.

Twórcy

autor

Maślak M.

• Cracow University of Technology, Faculty of Civil Engineering, Chair on Metal Structures, Warszawska 24, 31-155 Cracow, phone: [phone]

autor

Pazdanowski M.

• Cracow University of Technology, Faculty of Civil Engineering, Department for Computational Civil Engineering, Warszawska 24, 31-155 Cracow, phone: [phone]

Bibliografia

• [1] Abaqus 6.14: Abaqus/CAE user’s guide, Dassault Systèmes, 2014.
• [2] Górnik G., Ślęczka L.: Degradation of structural properties in steel joints butt joint loaded in a non monotonic manner, Inżynieria i Budownictwo, 2/2018, pp. 91-94 (in Polish).
• [3] PN-EN 1993-1-8: Eurocode 3 - Design o steel structures, Part 1-8: Design of joints.
• [4] Jabłońska-Krysiewicz A.: Finite element modeling of the behaviour of steel end-plate connections, Czasopismo Inżynierii Lądowej, Środowiska i Architektury - Journal of Civil Engineering, Environment and Architecture, JCEEA, vol. XXXII, z. 62, 3/II/2015, pp. 173-184, DOI:10.7862/rb.2015.148.
• [5] Czaja J., Śliwa R.: Modelling of screw joins with its experimental verification, Archives of Metallurgy and Materials, vol. 52, issue 2, 2007, pp. 267-276.
• [6] Maślak M., Pazdanowski M., Woźniczka P.: Numerical validations of selected computer programs in nonlinear analysis of steel frame exposed to fire, AIP Conference Proceedings 1922, 150007-1-150007-9, Published by AIP Publishing, 2018.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).