Fatigue Strength of Steel Plate Girders with Notched Dapped End
(*) Corresponding author
This study examines numerically the stress concentrations and the fatigue strength of steel plate girders with notched ends. The geometric discontinuity of the notch gives rise to the stress concentrations in the web plate and makes it vulnerable to the formation of fatigue cracks under cyclic loading. The finite element analysis and the hot spot stress method have been employed. The implemented approach has been verified against experimental results in literature. The effects of using notched end have been studied considering the girder strength, the failure mode, the deflection and the cross section distortion. Two areas of stress concentrations and three hot spots have been detected. The dimensions of the notch details have been found to have significant effects on the magnitude of stress concentrations and fatigue strength. For future works, the obtained conclusions provide guidance for the design of notched ends details in steel plate girders against fatigue and they can be considered as a basis for design standards. For already existing girders, a strengthening method has been proposed against fatigue. This study applies as far as no out of plane deformation and/or buckling occurred in the web plate.
Copyright © 2019 Praise Worthy Prize - All rights reserved.
G. T. Fry, B. M. Bailey, J. L. Farr, J. E. Elliott and P. B. Keating P. B., Behavior and Design of Dapped Steel Plate Girders (Technical report, Project, Texas Transportation Institute, The Texas A&M University, Texas 77843-3135, 2005).
W. N. Findley, A Theory for the Effect of Mean Stress on Fatigue of Metals Under Combined- Study Torsional and Axial Load or Bending , Journal of Engineering for industry, 81 (4), pp.301-306, 1959.
European Committee for Standardization, Eurocode 3: Design Of Steel Structures, Part 1-9: Fatigue, 1993-1-9, (2005).
American Association Of State Highway and Transportation Officials, AASHTO-LRFD, Bridge Design Specification 6th ed., Washington, D.C., 2012.
British Standards Institution, British Standards BS 5400: Steel, Concrete and Composite Bridges, Part 10, 1980.
A. Hobbacher, Recommendations for Fatigue Design of Welded Joints and Components (The International Institute of Welding: Springer, Berlin, 2016).
E. Niemi, W. Fricke, S. J. Maddox, Fatigue Analysis of Welded Components: Designer’s Guide to the Structural Hot Spot Stress Approach (2nd ed.; International Institute of Welding (IIW): Paris, France, 2018).
M. Aygul, M. Al-Emrani and S. Urushadze, Modelling and Fatigue Life assessment of Orthotropic Bridge Deck Details Using FEM, International journal of fatigue 40,pp. 129-142, 2012.
J. Lee, J. Seo, M Kim, S. Shin, M. Han, J Park, Comparison of hot spot stress evaluation methods for welded structures. Int. J. Nav. Archit. Ocean Eng., 2, pp. 200–210, 2010.
R. Liu, Y. Liu, B. Ji, M. Wang, Y. Tian, Hot spot stress analysis on rib-deck welded joint in orthotropic steel decks, J. Constr. Steel Res., 97, pp. 1–9, 2014.
T. H. T. Chan, T. Q. Zhou, Z. X. Li and L. Guo, Hot spot stress analysis of fatigue for TsingMaBridge critical members under traffic using finite element method, Structural Engineering and Mechanics, Vol. 19 (3), pp. 261-279, 2005.
G. Chellini, F.V. Lippi and W. Salvatore, A multidisciplinary approach for fatigue assessment of a steel–concrete high-speed railway bridge on Sesiariver, Structure and Infrastructure Engineering: Maintenance, Management, Life-Cycle Design and Performance, Vol. 2479, pp. 1-24, 2013.
J. Y. Park, and H. Kim, Fatigue life assessment for a composite box girder bridge, International Journal of Steel Structures, Vol. 14 (4), pp. 843-853, 2014. https://doi.org/10.1007/s13296-014-1215-x
W. Fricke, L. Gao and H. Paetzold, Fatigue assessment of local stresses at fillet welds around plate corners, International Journal of Fatigue, pp. 1-8, 2017.
A. F. Melaku and K. S. Jung, Evaluation of welded joints of vertical stiffener to web under fatigue load by hotspot stress method, International Journal of Steel Structures, Vol. 17 (1),pp. 257-264, 2017.
S. T. De. Freitas, H. Kolstein and F. Bijlaard, Fatigue assessment of full-scale retrofitted orthotropic bridge decks, Journal of Bridge Engineering, Vol. 22 (11), pp. 1-16, 2017.
J. Heng, K. Zheng, C. Gou, Y. Zhang and Y. Bao,Fatigue performance of rib-to-deck joints in orthotropic steel decks with thickened edge U-Ribs, Journal of Bridge Engineering, Vol. 22 (9), pp. 1-10, 2017,
A. Lindqvist and H. Nilsson, Effective notch stress analysis of transverse attachments in steel bridges, M. Sc. thesis, Dept. of Civil and Env.Eng., Chalmers University of Technology, Sweden 2016.
W. Fricke, IIW Recommendations for the Fatigue Assessment of Welded Structures by Notch Stress Analysis (Woodhead Publishing, 2012).
ANSYS, Release 12: Finite Element Program.
W. Fricke and Paetzold, Full-Scale Fatigue Tests of Ship Structures to Validate the S–N Approaches for Fatigue Strength Assessment, Marine Structures 23, pp. 115–130, 2010.
W. Fricke, A.Lilienfeld-Toal and Paetzold, Fatigue Strength Investigations of welded Details of Stiffened Plate Structures in Steel Ships, International Journal of Fatigue 34, pp. 17–26, 2012.
J. Farr, Virtual Representation and Analysis of Structural Systems, Presented with a Case Study, M.Sc. Thesis, Texas A&M University, College Station, TX, 2001.
Deshmukh, A., Venkatachalam, G., Saraf, M., Fatigue Life Prediction of Doubler Plate Weld Joint Using Virtual Strain Gauge, Validation through Experiments and Its Application, (2018) International Review of Mechanical Engineering (IREME), 12 (2), pp. 196-206.
Al-Quraishi, H., Hamood, M., Sahmi, N., A New Shear Strength Model for UHPC Corbel, (2018) International Review of Civil Engineering (IRECE), 9 (4), pp. 168-173.
- There are currently no refbacks.
Please send any question about this web site to email@example.com
Copyright © 2005-2023 Praise Worthy Prize