CONCEPTUAL FRAMEWORK OF tatigue life criterion ASSESSMENT OF STEEL BRIDGES RESIDUAL LIFE
Abstract
The paper presents the stress-strain state analysis of the problems of assessment of residual life of steel bridges and fatigue life criteria. The concept is suggested for the use of test results obtained in the field of the low-cycle fatigue necessary for the assessment of the bridge residual life. The methodology is suggested for the construction of the correlation dependence between the fatigue life in the small- and multi-cycle fatigue areas. the rational for determination of the safety residual life is suggested in this paper.
Keywords
металлический мост,
пролетное строение,
напряженно-деформированное состояние,
циклическое нагружение,
долговечность,
остаточный ресурс,
трещинообразование,
малоцикловое и многоцикловое нагружение,
metal bridge,
span,
stress-strain state,
cyclic loading,
durability,
residual life,
cracking,
low- and multicycle loading
About the Authors
VLADIMIR M. Kartopoltsev
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
BORIS D. Kolmakov
Tomsk State University of Architecture and Building
Russian Federation
Russian Federation
References
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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. Novozhilova N.I. Bystrov V.A., Shaikevich V.L. Prognozirovanie nadezhnosti konstruktsii stal'nykh i stalezhelezobetonnykh mostov : uchebnoe posobie s elementami UIRS [Structural safety forecast for steel bridges]. Leningrad, 1989. P. 96. (rus)
4. 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)
Review
For citations:
Kartopoltsev V.M., Kartopoltsev A.V., Kolmakov B.D. CONCEPTUAL FRAMEWORK OF tatigue life criterion ASSESSMENT OF STEEL BRIDGES RESIDUAL LIFE. Vestnik of Tomsk state university of architecture and building. 2015;(4):206-211. (In Russ.)
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