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DESIGNING AND DETAILING OF BUILDING SYSTEMS. MECHANICS IN CIVIL ENGINEERING

Peculiarities of stress distribution in beamless floor plate as a result of prestressing forces

Вестник МГСУ 9/2014
  • Kremnev Vasiliy Anatol'evich - LLC "InformAviaKoM" Director General, LLC "InformAviaKoM", 2 Pionerskaya str., Korolev, Moscow Region, 141074, Russian Federation; +7 (495) 645-20-62; Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript .
  • Kuznetsov Vitaliy Sergeevich - Mytishchi Branch, Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Professor, Department of Architectural and Construction Design, Mytishchi Branch, Moscow State University of Civil Engineering (MGSU), 50 Olimpiyskiy prospect, Mytishchi, Moscow Region, 141006, Russian Federation; +7 (495) 583-07-65; Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript .
  • Talyzova Yulia Aleksandrovna - Mytishchi Branch, Moscow State University of Civil Engineering (MGSU) Assistant Lecturer, Department of Architectural and Construction Design, Mytishchi Branch, Moscow State University of Civil Engineering (MGSU), 50 Olimpiyskiy prospect, Mytishchi, Moscow Region, 141006, Russian Federation; Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript .

Страницы 48-53

The article discusses the features of the stress state of the plate of capitalless girderless overlapping as a result of force of prestressed reinforcement, where the reinforcement used is high-strength reinforcement in flexible shell of "Monostrend" type. The peculiarity of specific design solution is a diagonal arrangement of prestressed reinforcement with heads fixed at the outer edges of the columns. The purpose of this arrangement of the prestressed reinforcement is deflection reduction of the central area of a plate and reduction of the width of cracks on the lower surface in the bay and on the upper surface of the support areas. The article shows the distribution of normal stresses of existing loads in the plane plate. The stress distribution over the thickness of the plate was assumed uniform. In order to establish design size of a section in diagonal direction it is possible to set the variables x and y and then calculate the coordinates of stress distribution curves in the concrete as a result of compression by prestress force. The authors offer diameter values of equal stresses in case of 4 and 8 K7O ropes. The method of calculating prestressing losses of concrete creep are offered.

DOI: 10.22227/1997-0935.2014.9.48-53

Библиографический список
  1. Rukovodstvo po proektirovaniyu zhelezobetonnykh konstruktsiy s bezbalochnymi perekrytiyami [Design Guidelines for Reinforced Concrete Structures with Beamless Floor]. Moscow, Stroyizdat Publ., 1979, 63 p.
  2. Pogrebnoy I.O., Kuznetsov V.D. Bezrigel'nyy predvaritel'no napryazhennyy karkas s ploskim perekrytiem [Beamless Prestressed Frame with Flat Roof]. Inzhenerno-stroitel'nyy zhurnal [Engineering and Construction Journal]. 2010, no. 3, pp. 52—55.
  3. Karpenko N.I. Obshchie modeli mekhaniki zhelezobetona [General Models of Reinforced Concrete Mechanics]. Moscow, Stroyizdat Publ., 1996, 416 p.
  4. Beglov A.D., Sanzharovskiy R.S. Teoriya rascheta zhelezobetonnykh konstruktsiy na prochnost' i ustoychivost' : Sovremennye normy i Evrostandarty [Theory of Strength and Stability Calculation of Reinforced Concrete Structures]. Moscow, Saint Petersburg, ASV Publ., 2006, 221 p.
  5. Vol'mir A.S. Gibkie plastinki i obolochki [Flexible Plates and Shells]. Moscow, Gosudarstvennoe izdatel’stvo tekhniko-teoreticheskoy literatury Publ., 1956, 419 p.
  6. Muttoni A. Conception et dimensionnement de la precontrainte. Ecole Polytechnique federale de Lausanne, Ann?e acad?mique 2011—2012, 35 p. Available at: http://i-concrete.epfl.ch/cours/epfl/pb/2012/Pr%C3%A9sentations/ponts-1-P-2012-05-08.pdf/. Date of access: 22.01.2014.
  7. Sitnikov S.L., Miryushenko E.F.; patent holder S.L. Sitnikov. Pat. 2427686 RF, MPK E04C 5/10. Sposob izgotovleniya predvaritel'no napryazhennykh zhelezobetonnykh konstruktsiy i monostrend. ¹ 2009132979/03 ; zayavl. 02.09.2009 ; opubl. 27.08.2011. Byul. ¹ 24 [Russian Patent 2427686 RF, MPK E04C 5/10. Method of Manufacturing Prestressed Reinforced Concrete Structures and Monostrends. No. 2009132979/03 ; notice 02.09.2009 ; publ. 27.08.2011. Bulletin no. 24.]. 8 p.
  8. Spasojevic A., Burdet O., Muttoni A. Applications structurales du beton fiber ultra-hautes performances aux ponts. EPFL, Laboratoire de Construction en beton, 2008, 60 p. Available at: http://ibeton.epfl.ch/Publications/2008/Spasojevic08b.pdf/. Date of access: 22.01.2014.
  9. Tikhonov I.N. Armirovanie elementov monolitnykh zhelezobetonnykh zdaniy : Posobie po proektirovaniyu [Reinforcement of the Elements of Monolithic Reinforced Concrete Buildings]. Moscow, NITs Stroitel'stvo Publ., 2007, 168 p.
  10. Wieczorek M. Influence of Amount and Arrangement of Reinforcement on the Mechanism of Destruction of the Corner Part of a Slab-Column Structure. Prosedia Engineering. 2013, vol. 57, pp. 1260—1268. Available at: http://www.sciencedirect.com/science/article/pii/S1877705813008928. Date of access: 22.02.2014. DOI: http://dx.doi.org/10.1016/j.proeng.2013.04.159.
  11. Vatin N.I., Ivanov A.D. Sopryazhenie kolonny i bezrebristoy beskapitel'noy plity perekrytiya monolitnogo zhelezobetonnogo karkasnogo zdaniya [Connection of a Column and Non-ribbed Capitalless Slab of Monolithic Reinforced Concrete Frame Building]. Saint Petersburg, SPbODZPP Publ., 2006, 82 p. Available at: http://www.engstroy.spb.ru/library/ivanov_kolonna_i_perekrytie.pdf. Date of access: 22.01.2014.
  12. Samokhvalova E.O., Ivanov A.D. Styk kolonny s bezbalochnym beskapitel'nym perekrytiem v monolitnom zdanii [The Joint of a Column and Beamless Capitalless Floor in Monolithic Building]. Inzhenerno-stroitel'nyy zhurnal [Engineering and Construction Journal]. 2009, no. 3. Available at: http://engstroy.spb.ru/index_2009_03/samohvalova_styk.pdf. Date of access: 22.01.2014.
  13. Bezukhov N.I. Osnovy teorii uprugosti, plastichnosti i polzuchesti [Fundamentals of Elasticity and Creep Theory]. 2nd edition, Moscow, Vysshaya shkola Publ., 1968, 512 p.
  14. Altenbach H., Huang C., Naumenko K. Creep-damage Predictions in Thinwalled Structures by Use of Isotropic and Anisotropic Damage Models. The Journal of Strain Analisys for Engineering Design. 2002, vol. 37, no. 3, pp. 265—275. http://dx.doi.org/10.1243/0309324021515023.
  15. Altenbach H., Morachkovsky O., Naumenko K., Sychov A. Geometrically Nonlinear Bending of Thin-walled Shells and Plates under Creep-damage Conditions. Archive of Applied Mechanics. 1997, vol. 67, no. 5, pp. 339—352. DOI: http://dx.doi.org/10.1007/s004190050122.

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