RESIDUAL LIFE OF METAL BRIDGE STRUCTURES ESTIMATED BY CRACK FORMATION
Abstract
The paper deals with the residual life of metal bridges estimated on the analysis of stresses and stress-strain state during crack propagation as well as the stress intensity and crack resistance factors under static, dynamic and cyclic loading and stress-corrosion fracture. The parameter dependencies are suggested for the stress-strain state of the bridge members at stages of crack birth and propagation. For the first time, the regularities of crack propagation are ascertained depending on the shape of the structural element and its limit state.
About the Authors
VLADIMIR M. Kartopoltsev
Tomsk State University of Architecture and Building
Russian Federation
Russian Federation
ALEKSANDR G. Borovikov
Tomsk State University of Architecture and Building
Russian Federation
Russian Federation
ANDREI V. Kartopoltsev
Tomsk State University of Architecture and Building
Russian Federation
Russian Federation
References
1. Brodskii V. Vozniknovenie ustalostnykh treshchin svarnykh sploshnostenchatykh proletnykh stroenii mostov [Fatigue cracks in welded bridge spans]. Issledovanie dolgovechnosti i ekonomichnosti iskusstvennykh sooruzhenii. Leningrad : LIIZhT Publ., 1992. Pp. 16–21. (rus)
2. Otsenka nadezhnosti ostatochnogo resursa nesushchikh konstruktsii avtodorozhnykh mostov [Reliability estimation of the residual life of bridge bearing structures]. Otsenka ustalostnoi prochnosti konstruktsii mostov s kontsentratami: otchet o NIR. Tomsk : TGASA Publ., 1996. 18 p. (rus)
3. Brodskii V. Raschetno-eksperimental'naya otsenka ostatochnoi dolgovechnosti konstruktsii s ustalostnoi treshchinoi [Design and experimental evaluation of residual life design with a fatigue crack]. Voprosy nadezhnosti mostovykh konstruktsii. Leningrad : LISI Publ., 1984. Pp. 23–33. (rus)
4. Toprac A.A., Murugesam Natarajan. Fatigue strength of hybrid plate girders. Proc. A.S.C.E. Journal of the Structural Division, 1971. 1214 p.
5. Yarema S. Metodologiya otsenivaniya kharakteristik soprotivleniya razvitiyu treshchin (treshchinostoikosti materialov) pri tsiklicheskom nagruzhenii. Moscow : FKhMM Publ., 1981. No. 4. Pp. 100–110. (rus)
Review
For citations:
Kartopoltsev V.M., Borovikov A.G., Kartopoltsev A.V. RESIDUAL LIFE OF METAL BRIDGE STRUCTURES ESTIMATED BY CRACK FORMATION. Vestnik of Tomsk state university of architecture and building. 2015;(2):176-183. (In Russ.)
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