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RESEARCH OF BUILDING MATERIALS

CONSTRUCTION OF A DIAGRAM DESCRIBING DEFORMATION OF THE CONCRETE EXPOSED TO A SINGLE DYNAMIC FORCE WITH ACCOUNT OF PRESTRESSES PRODUCED BY THE STATIC LOAD

Vestnik MGSU 7/2012
  • Tsvetkov Konstantin Aleksandrovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Associate Professor, Department of Strength of Materials; +7 (499) 183-43-29, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Bazhenova Aleksandra Vladimirovna - Moscow State University of Civil Engineering (MSUCE) master student, Moscow State University of Civil Engineering (MSUCE), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.
  • Bezgodov Igor' Mikhaylovich - Moscow State University of Civil Engineering (MSUCE) Researcher, Moscow State University of Civil Engineering (MSUCE), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.

Pages 152 - 158

The authors describe methods of composing a concrete dynamic deformation diagramme, if the pre-stress produced by the static load is taken into account. It is noteworthy that the available data concerning the influence of the load preceding any dynamic load and produced on the mechanical properties of the concrete are limited and discrepant. The authors propose their methodology of an experiment and describe items of specialized equipment employed to hold the experiment in question. The authors have held an experimental study to reproduce the conditions of a real structure exposed to an emergency dynamic load. Samples to be tested are exposed to the static load of varied intensity without any relief. Duration of the load application will be six months. The diagram should be recommended for reference in the course of design of concrete and reinforced concrete structures exposed to dynamic loads applied in emergency situations.

DOI: 10.22227/1997-0935.2012.7.152 - 158

References
  1. Bazhenov Yu.M. Beton pri dinamicheskom nagruzhenii [Concrete Exposed to Dynamic Loading]. Moscow, Stroyizdat Publ., 1970, 272 p.
  2. Prokopovich I.E., Kobrinets V.M., Polovets V.I., Tvardovskiy I.A. Vliyanie rezhima prilozheniya szhimayushchey nagruzki na dlitel’noe soprotivlenie betona [Influence of the Compression Load Pattern on the Long-term Concrete Strength]. Beton i zhelezobeton [Concrete and Reinforced Concrete]. 1991, no. 6, pp. 6—8.
  3. Brodskiy V.V. Soprotivlenie dinamicheskim impul’snym vozdeystviyam predvaritel’no napryazhennykh betonnykh elementov i zhelezobetonnykh kolonn [Resistance of Pre-stressed Concrete Elements and Reinforced Concrete Columns to Dynamic Pulse Forces]. Rostov-Don, 2001, 23 p.
  4. Kirillov A.P. Prochnost’ betona pri dinamicheskikh nagruzkakh [Concrete Strength If Exposed to Dynamic Loads]. Beton i zhelezobeton [Concrete and Reinforced Concrete]. 1987, no. 2, pp. 38—39.
  5. Tsvetkov K.A. Vliyanie dinamicheskogo nagruzheniya na prochnostnye i deformativnye svoystva betona pri odnoosnykh i dvuosnykh napryazhennykh sostoyaniyakh [Dynamic Loading Influence on Concrete Strength and Deformation-related Properties in the Event of Mono-axial and Bi-axial Stress States]. Moscow, MSUCE, 2007.
  6. Tsvetkov K.A. Osnovnye rezul’taty eksperimental’no-teoreticheskikh issledovaniy prochnostnykh i deformativnykh svoystv betona pri dinamicheskom nagruzhenii v usloviyakh odnoosnogo i dvukhosnogo szhatiya [Key Results of Experimental and Theoretical Researches of the Concrete Strength and Deformation-related Properties under Dynamic Loading in the Event of Mono-axial and Biaxial Compression]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2007, no. 3, pp. 109—120.
  7. Malashkin Yu.N., Bezgodov I.M., Tsvetkov K.A. Metodicheskie osobennosti issledovaniya deformativno-prochnostnykh kharakteristik betona pri dinamicheskom nagruzhenii v usloviyakh slozhnykh napryazhennykh sostoyaniy [Methodological Features of Research of Concrete Deformation and Strength-related Properties under Dynamic Loading in Complex Stress States]. Estestvennye i tekhnicheskie nauki [Natural and Technical Sciences], 2007, no. 1, pp. 182—190.
  8. Tsvetkov K.A. Vliyanie dinamicheskogo nagruzheniya na prochnost’ i deformativnye kharakteristiki betona pri odnoosnom rastyazhenii i napryazhennom sostoyanii “szhatie-rastyazhenie” [Dynamic Loading Influence on Concrete Durability and Deformation-related Properties under Mono-axial Strain and in the “Stress-Strain” State]. Estestvennye i tekhnicheskie nauki [Natural and Technical Sciences]. 2007, no. 4, pp. 294—298.

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