The Paton Welding Journal, 2004, №05

2004 №05 (07)

2004 №05 (09)

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The Paton Welding Journal, 2004, #5, 29-35 pages

Fatigue damages of welded crane bridges

O.A. Emelianov¹, V.P. Shepotko¹, Yu.V. Pikhota¹, S.V. Lubenets¹, A.G. Burenko²

¹Donbass State Engineering Academy, Kramatorsk, Ukraine
²Company «Novokramatorsk Machine-Building Plant», Novokramatorsk, Ukraine

Abstract
Results of analysis of fatigue damages in welded bridges at 1500 cranes covering a period of the last 25 years are presented. The need to revise approaches to methods and principles of design, fabrication and calculation of welded bridge structures is noted.
Keywords: welded structures,-welded bridges of cranes, concentration of stresses, alternating stresses, vibration, cyclic fatigue life

References

1. Emelianov, O.A. (2002) Welded crane bridges. Design, stress loading, diagnostics, service life assurance. Kramatorsk: DSEA.
2. Zadiraka, V.F., Emelianov, O.A. (1983) About increase in carrying capacity and service life of welded structures of bridge cranes. Avtomatich. Svarka, 10, 52-58.
3. Trufyakov, V.I. (1998) Increase in fatigue resistance of welded joints and structures. Ibid., 11, 11-19.
4. RD 50-694-90. Procedure guidelines. Reliability in techni¬que. Probabilistic method of alculation of welded structure fatigue.
5. Emelianov, O.A., Shepotko, V.P., Lubenets, S.V. et al. (2001) Formation and kinetics of transverse two-frequency loads acting on the welded bridge of crane. Tekhn. Diagnos- tika i Nerazr. Kontrol, 1, 13-18.
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7. Kovalchuk, V.S. (1998) Determination of cyclic service life of metals at two-frequency low-cycle loading. Avtomatich. Svarka, 9, 12-14.
8. Fisher, J., Mertz, D. (1985) Cracking in steel bridges. Grazhd. Stroitelstvo, 2, 9−13.
9. Emelianov, O.A. (1997) Crane bridges. In: Welded struc¬tures. Refer. Book. Kiev: Naukova Dumka.
10. Emelianov, O.A., Zhemchuzhnikov, G.V., Kotenko, E.V. (1976) Repair of metal structures by electric welding. Donetsk: Donbass

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Suggested Citation

O.A. Emelianov, V.P. Shepotko, Yu.V. Pikhota, S.V. Lubenets, A.G. Burenko (2004) Fatigue damages of welded crane bridges. The Paton Welding J., 05, 29-35.

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