NORMALIZED DEFORMATION MODELS FOR THE CALCULATION OF CRACKING OF REINFORCED CONCRETE STRUCTURES
https://doi.org/10.33979/2073-7416-2022-101-3-40-50
Abstract
The study provides a detailed analysis of the application of normalized deformation models in order to practically calculate such a design characteristic as crack resistance in reinforced concrete elements. For theoretical verification of the values of the moment of cracking, two calculation methods are used, based on the application of the elastic-plastic moment of cross-section resistance and a nonlinear deformation model. A comparative analysis of calculated values with experimental data is also used.
In the course of theoretical studies of the moment of cracking using these techniques, the following conclusions were made and the analysis of experimental data was made. The calculated value during the application of the elastic-plastic moment and the two-line diagram of the state of concrete does not exceed the experimental ones and has a margin of 10%.
About the Authors
M. V. MORGUNOV
Bryansk State Engineering Technological University
Russian Federation
Russian Federation
Morgunov Mikhail V., сandidate of technical science, associated professor of the department of building constructions
Bryansk
D. A. MASLOV
Bryansk State Engineering Technological University
Russian Federation
Russian Federation
Maslov Dmitry An., master student of the department of building constructions
Bryansk
References
1. Khabidolda O., Bakirov ZH.B., Nuguzhinov Zh.S., Vatin N.I. Determining stress intensity factor in bending reinforced concrete beams // Bulletin of the Karaganda University. 2019. No. 4 (96). P. 90-98.
2. Ovakimyan S.S., Trekin S.S. Issledovanie treshchinoobrazovaniya izgibaemyh zhelezobetonnyh elementov [Investigation of crack formation of bent reinforced concrete elements]// Innovacii. Nauka. Obrazovanie. 2021. No. 34. Pp. 340-343. (rus)
3. Kolchunov V.I., Fedorova N.V. Nekotorye problemy zhivuchesti zhelezobetonnyh konstruktivnyh sistem pri avarijnyh vozdejstviyah [Some problems of survivability of reinforced concrete structural systems during emergency impacts] // Vestnik NIC Stroitel'stvo. 2018. No. 1 (16). Pp. 115-119. (rus)
4. Morgunov M.V. Raschet momenta treshchinoobrazovaniya izgibaemogo betonnogo elementa, armirovannogo stekloplastikovoj armaturoj [Calculation of the moment of cracking of a bent concrete element reinforced with fiberglass reinforcement] // Izvestiya YUgo-Zapadnogo gosudarstvennogo universiteta. 2019. No. 1. Pp.64-73. (rus)
5. Kolchunov V.I., Kolchunov V.I., Fedorova N.I. Deformacionnye modeli zhelezobetona pri osobyh vozdejstviyah [Deformation models of reinforced concrete under special influences] // Promyshlennoe i grazhdanskoe stroitel'stvo. 2018. No. 8. Pp. 54-60. (rus)
6. Kolchunov V.I., Kuznecova K.YU., Fedorov S.S. Model' kriteriya treshchinostojkosti i prochnosti ploskonapryazhennyh konstrukcij iz vysokoprochnogo fibrobetona i fibrozhelezobetona [A model of the crack resistance criterion and the strength of flat-stressed structures made of high-strength fibroconcrete and fibro-reinforced concrete] // Stroitel'stvo i rekonstrukciya. 2021. No. 3 (95). Pp. 15-26. (rus)
7. Toshin D.S. Perspectives of the application for the nonlinear deformation model in the calculations of reinforced concrete elements // Material science forum. 2019. Vol. 974. Pp. 505-509.
8. Kodysh E.N., Trekin N.N., Nikitin I.K., Sosedov K.E. Prakticheskie metody i primery rascheta zhelezobetonnyh konstrukcij iz tyazhelogo betona po SP 63.13330 [Practical methods and examples of calculation of reinforced concrete structures made of heavy concrete according to SP 63.13330]. M.: «Bumazhnik». 2017. Pp. 61-83. (rus)
9. Eryshev V.A. CHislennye metody rascheta prochnosti zhelezobetonnyh elementov po nelinejnoj deformacionnoj modeli s ispol'zovaniem diagramm deformirovaniya modeli [Numerical methods for calculating the strength of reinforced concrete elements according to a nonlinear deformation model using model deformation diagrams] // Vestnik NGIEI. 2018. No. 6 (85). Pp. 17-26. (rus)
10. Nikulina YU.A. Ispol'zovanie nelinejnoj deformacionnoj raschetnoj modeli dlya opredeleniya treshchinostojkosti zhelezobetonnyh predvaritel'no napryazhennyh balok [Using a nonlinear deformation calculation model to determine the crack resistance of reinforced concrete prestressed beams] // Sbornik dokladov mezhdunarodnogo studencheskogo stroitel'nogo foruma. Belgorod: BGTU im. V.G. SHuhova. 2018. Pp. 133-140. (rus)
11. Karpenko N.I., Belostockij A.M., Pavlov A.S., Akimov P.A., Karpenko S.N., Petrov A.N. Obzor modelej deformirovaniya zhelezobetona, uchityvayushchih processy treshchinoobrazovaniya. CHast' 1: Razborki otechestvennyh uchenyh [Review of reinforced concrete deformation models that take into account the processes of cracking. Part 1: Disassembly of domestic scientists]// Sbornik nauchnyh trudov RAASN. Moskva: RAASN. 2020. Pp.231-240. (rus)
12. Karpenko N.I., Belostockij A.M., Pavlov A.S., Akimov P.A., Karpenko S.N., Petrov A.N. Obzor modelej deformirovaniya zhelezobetona, uchityvayushchih processy treshchinoobrazovaniya. CHast' 2: razrabotki zarubezhnyh uchenyh [Review of reinforced concrete deformation models that take into account the processes of cracking. Part 2: developments of foreign scientists] // Sbornik nauchnyh trudov RAASN. Moskva: RAASN. 2020. Pp. 241-254. (rus)
13. The hypothesis of plane sections and the Saint-Venant principle. [Online]. URL:https://scask.ru/c_book_rbt.php?id=103 (date of application 17.02.2022).
14. SP 63.13330.2018. Betonnye i zhelezobetonnye konstrukcii. Osnovnye polozheniya SNiP 52-01-2003 [Concrete and reinforced concrete structures. The main provisions of SNiP 52-01-2003]. M.: Standartinform. 2019. (rus)
15. SP 52-101-2003. Betonnye i zhelezobetonnye konstrukcii bez predvaritel'nogo napryazheniya armatury [SP 52-101-2003. Concrete and reinforced concrete structures without prestressing the reinforcement]. M.: GUP NIIZHB Gosstroya Rossii. 2003. (rus)
16. SP 52-102-04. Predvaritel'no napryazhennye zhelezobetonnye konstrukcii [SP 52-102-04. Prestressed reinforced concrete structures]. M.: GUP NIIZHB Gosstroya Rossii, 2003. (rus)
17. Karpenko N.I. Proektirovanie betonnyh, zhelezobetonnyh, kamennyh i armokamennyh elementov i konstrukcij s primeneniem diagrammnyh metodov rascheta. Monografiya [Design of concrete, reinforced concrete, stone and reinforced stone elements and structures using diagrammatic calculation methods]. M.: ASV. 2019. Pp. 18-22. (rus)
18. Okusok S.A. Raschet momenta treshhinoobrazovanija zhelezobetonnogo jelementa bez predvaritel'nogo naprjazhenija armatury na osnovanii trebovanij SP 63.13330.2012 [Calculation of the moment of cracking of a reinforced concrete element without prestressing reinforcement based on the requirements of SP 63.13330.2012] // Stroitel'stvo i rekonstrukcija. 2015. No. 6. Pp. 14-20. (rus)
19. Gadzhieva U.M. Raschet zhelezobetonnyh elementov kruglogo poperechnogo secheniya po nelinejnoj deformacionnoj modeli [Calculation of reinforced concrete elements of circular cross-section by nonlinear deformation model] // Ekspert: teoriya i praktika. 2021. No. 5 (14). Pp. 13-20. (rus)
20. Opbul E. Dmitriev D., Fan Van Fuk. Practical calculation of flexible elements using a model of nonlinear deformation on the example of a typical RGD beam 4,56-90 // Architecture and Engineering. 2018. No. 3. Pp. 29-41.
21. Sejfullaev H.K., Garaev A.N. Prilozhenie nelinejnoj deformacionnoj modeli k raschetu izgibaemyh zhelezobetonnyh elementov [Application of a nonlinear deformation model to the calculation of bent reinforced concrete elements] // Science of Europe. 2018. No. 33. Pp. 51-60. (rus)
22. Eryshev V.A., Koskov M.YU. K metodike opredeleniya momenta treshchinoobrazovaniya izgibaemyh zhele-zobetonnyh elementov po nelinejnoj deformacionnoj modeli [To the method of determining the moment of cracking of bent reinforced concrete elements by a nonlinear deformation model] // Vestnik NGIEI. 2017. No. 12 (79). Pp. 32-42. (rus)
Review
For citations:
MORGUNOV M.V., MASLOV D.A. NORMALIZED DEFORMATION MODELS FOR THE CALCULATION OF CRACKING OF REINFORCED CONCRETE STRUCTURES. Building and Reconstruction. 2022;(3):40-50. (In Russ.) https://doi.org/10.33979/2073-7416-2022-101-3-40-50
Views:
193
Email this article 