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Towards the dynamic coefficient

https://doi.org/10.31675/1607-1859-2021-23-5-127-141

Abstract

For the first time, this paper studies the fundamental conditions of the dynamics of bridge spans under non-stationary oscillations with regard to the mass inertia of the span–vehicle system. Based on the dynamic analysis of the stress-strain state of spans under changing live load, the mechanical and energy principles of additional dynamic load characterized by the dynamic coefficient, are formulated and substantiated. It is found that the dynamic coefficient slightly depends on the system vibrations due to the temporary nature of its application. The amplitudefrequency characteristics of the dynamic stress-strain state are considered in the mode of stable oscillations only. Theoretical and experimental studies of road bridges of various designs and lengths confirm the relationship between the dynamic coefficient and the parameters of damping and resonance. It is found that the dynamic coefficient reflecting the energy balance of the system allows considering the critical ratios of the equilibrium amplitudes and dynamic stiffness of the spans under the changing effect of the live load as well as the presence of road defects and span bearing elements in terms of the well-known Hurwitz criterion.

About the Authors

A. V. Kartopoltsev
OOO "DIAMOS"
Russian Federation

Andrei V. Kartopoltsev, PhD, A/Professor

24/1, Solyanoy Alley, 634003, Tomsk



V. M. Kartopoltsev
OOO "DIAMOS"
Russian Federation

Vladimir M. Kartopoltsev, DSc, Professor

24/1, Solyanoy Alley, 634003, Tomsk



S. A. Kukhachenko
Tomsk State University of Architecture and Building
Russian Federation

Svetlana A. Kukhachenko, Senior Lecturer

2, Solyanaya Sq., 634003, Tomsk



References

1. Ilyashevich S.A. Osnovy dinamicheskogo rascheta balochnykh metallicheskikh mostov [Basics of dynamic analysis of beam metal bridges]. Moscow: Gosmashmethizdat, 1934. 200 p. (rus)

2. Panovko Y.G. Osnovy prikladnoi teorii uprugikh kolebanii [Basics of applied theory of elastic oscillations]. Moscow: Mashinostroenie, 1967. 316 p. (rus)

3. Shestoperov G.S. Nekotorye zadachi dinamicheskogo prostranstvennogo rascheta balochnykh mostov [Some tasks of dynamic spatial analysis of beam bridges. PhD Abstract]. Moscow, 1969. 23 p. (rus)

4. Tymoshenko S.P., Yang D.H. Kolebaniya v inzhenernom dele [Oscillations in engineering]. Moscow: Mashinostroenie, 1985. 472 p. (rus)

5. Clough R.W., Penzien J. Dinamika sooruzhenii [Dynamics of structures]. Moscow: Stroyizdat, 1979. 320 p. (transl. from Engl.)

6. Katz Y.M. O vynuzhdennykh nelineinykh kolebaniyakh [Forced nonlinear oscillations]. Trudy LII. 1939. No. 3. Pp. 102–120. (rus)

7. Snitko N.K. Metody rascheta sooruzhenii na vibratsiyu i udar [Methods for structural analysis of vibration and blow]. Leningrad; Moscow, 1953. 288 p. (rus)

8. Lisovski A. Kolebaniya pryamykh sterzhnei i ram [Oscillations of straight rods and frames]. Moscow: Gosstroyisdat, 1961. 160 p. (transl. from Pol.)

9. Biderman V.L. Prikladnaya teoriya mekhanicheskikh kolebanii [Applied theory of mechanical oscillations]. Moscow: Vysshaya shkola, 1972. 416 p. (rus)

10. Kartopoltsev V.M., Kisov D., Kartopoltsev A.V., Kolmakov B.D. Dinamicheskie ispytaniya stalezhelezobetonnykh mostov s uchetom vliyaniya defektov proezzhei chasti [Dynamic tests of composite bridges with pavement defects]. Vestnik of Tomsk State University of Architecture and Building. 2016. No. 5. Pp. 178–193. (rus)

11. Kartopoltsev V.M., Safronov V.M., Kartopoltsev A.V., Kolmakov B.D. Opredelenie dinamicheskikh napryazhenii i deformatsii v stalezhelezobetonnykh mostakh [Stress-strain state of composite bridge]. Vestnik of Tomsk State University of Architecture and Building. 2016. No. 3. Pp. 194–204. (rus)

12. Kartopoltsev V.M., Kartopoltsev A.V., Bochkarev N.N. Avtomatizirovannyi kompleks dinamicheskikh ispytanii mostov [Automated system of dynamic tests of bridges]. In: Sovremennye tekhnika i tekhnologii. Trudy 4-i oblastnoi nauchno-prakticheskoi konferentsii studentov, aspirantov i molodykh uchenykh (Proc. 4th Sci. Conf. of Students and Young Scientists ‘Modern Engineering and Technologies’). Tomsk, 1998. Pp. 106–109. (rus)

13. Morgaevsky A.B. O vliyanii ressor na velichinu dinamicheskogo effekta ot podvizhnykh nagruzok [Spring effect on dynamic live loads]. In: Issledovaniya po teorii sooruzhenii [Studies on the structural theory], vol. XIV. Moscow: Stroyzdat, 1965. Pp. 65–71. (rus)

14. Filippov A.P., Kokhmanyuk S.S. Easchet sooruzhenii na podvizhnye nagruzki. Dinamicheskii raschet zdanii i sooruzhenii [Structural analysis of live loads. Dynamic analysis of buildings]. Moscow: Stroyzdat, 1984. Pp. 205–211. (rus)

15. Shimansky Y.A. Dinamicheskii raschet sudovykh konstruktsii [Dynamic analysis of ship structures], V.I. Pershin, Ed. Leningrad: Sudpromgiz, 1948. 408 p. (rus)

16. Bondar N.G. Dinamicheskii raschet na dvizhushchuyusya nagruzku [Dynamic analysis of live load]. In: Issledovaniya po teorii sooruzhenii [Studies on the theory of structures], vol. VI. Moscow: Stroyzdat, 1954. 111 p. (rus)

17. Ganiev R.F., Kononenko V.O. Kolebaniya tverdykh tel [Oscillations of solids]. Moscow: Nauka, 1976. 432 p. (rus)

18. Efimov P.P. Dinamicheskoe vozdeistvie dvizhushchikhsya avtomobilei na mosty malykh proletov [Dynamic impact of moving cars on small span bridges]. In: Teoreticheskie i eksperimental'nye issledovaniya mostov i sooruzhenii: sb. nauch. trudov (Coll. Papers “Theoretical and Experimental Studies of Bridges and Structures”). Omsk: SibADI, 1972. No. 5. Pp. 46–51. (rus)

19. Efimov P.P. Issledovanie nekotorykh svoistv dinamicheskoi sistemy “proletnoe stroenie + nagruzka” dlya sluchaya dvizheniya nagruzki po nerovnoi proezzhei chasti proletnykh stroenii maloi dliny [The properties of "span structure–load system for load on uneven span road of low length]. Teoreticheskie i eksperimental'nye issledovaniya mostov i stroitel'nykh konstruktsii: sb. nauch. trudov (Coll. Papers “Theoretical and Experimental Studies of Bridges and Buildings”) Omsk: SibADI, 1971. No. 4. Pp. 5–10. (rus)

20. Gordeev V.N., Lanthukh-Lyashchenko A.I., Pashinsky V.A., Perelmuter A.V., Pichugin S.F. Nagruzki i vozdeistviya na zdaniya i sooruzheniya [Loads on buildings and structures], A.V. Perelmuter, Ed. Moscow: ASV, 2006. 478 p. (rus)


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For citations:


Kartopoltsev A.V., Kartopoltsev V.M., Kukhachenko S.A. Towards the dynamic coefficient. Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture. 2021;23(5):127-141. (In Russ.) https://doi.org/10.31675/1607-1859-2021-23-5-127-141

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