Modeling the reinforced concrete shell with a protective structure

2021;
: pp. 391–399
https://doi.org/10.23939/mmc2021.03.391
Received: March 22, 2021
Revised: April 30, 2021
Accepted: May 03, 2021
1
Lviv Polytechnic National University
2
Lviv Polytechnic National University
3
Lviv Polytechnic National University

The results of the mathematical modeling and experimental studies for the stress-strain state of the annular section of the reinforced concrete shell with the protective structure are presented.  Computer simulation has been formulated as a stationary temperature problem.  The distribution of deformations and stresses is shown using the equations of the elastic theory.  A comparison of theoretical dependences on the results of experimental studies of physical models is given. Conclusions are drawn about the possibility of using them in the calculations of reinforced concrete protective structures.

  1. C.T.I.C.M. Methode de prevision par le calcul du comportement au feu des structures en acier. Revue Construction Metallique. N4, 1976, p.33–40.
  2. Klimenko F., Gawrylak A., Karhoot I.  Stalowobetonowe konstrukcje powlok w budownictwe energetycznym.  Inzynieria i budownictwo. 8, 469–470 (1996), (in Polish).
  3. Nalimov V. V.  Teorija eksperimenta. Moskva (1971), (in Russian).
  4. Karkhut I. I.  Temperaturni navantazhennia na zalizobetonni zakhysni konstruktsii.  Lviv, Lviv Polytechnic National University (2015), (in Ukrainian).
  5. DBN V.2.6-98-2009.  Betonni ta zalizobetonni konstruktsii. Osnovni polozhennia (in Ukrainian).
  6. Karhut I. I., Prokopchuk I. V., Gavriljak A. I., Luchko I. I.  Eksperimental'nye issledovanija stalebetonnyh kolec na silovoe vozdejstvie.  Vіsnyk LPІ: "Rezervy progressa v arhitekture i stroitel'stve".  243, 36–37 (1990), (in Russian).
  7. Berg O. Ja.  Fizicheskie osnovy teorii prochnosti betona i zhelezobetona.  Moskva, Gosstrojizdat (1962), (in Russian).
  8. Kostornichenko V. A.  Prochnost', deformativnost' i treshhinostojkost' zhelezobetonnyh kol'cevyh jelementov pri vozdejstvii temperaturnogo perepada v diapazone $-50^\circ\textrm{C}+150^\circ\textrm{C}$ i vnutrennego davlenija. Dis.... kand. tehn. nauk. Moskva (in Russian).
  9. Krichevskij A. P., Korsun V. I.  Prochnost' i deformacii tjazhelogo betona v uslovijah ploskogo naprjazhennogo sostojanija pri dejstvii temperatur.  V Sb. Raschet, proektirovanie i ispytanie zhelezobetonnyh konstrukcij, prednaznachennyh dlja jekspluatacii v uslovijah suhogo zharkogo klimata. Tashkent. 100–104 (1985), (in Russian).
  10. DSTU B V.2.6-156-2010 Betonni ta zalizobetonni konstruktsii z vazhkoho betonu (in Ukrainian).
  11. Krochak O. V.  Raschet stalebetonnyh izgibaemyh jelementov s ispol'zovaniem real'nyh diagramm deformirovanija betona i armatury.  Mehanika i fizika razrushenija kompozitnyh materialov i konstrukcij: Tez. dokl. 1 Vsesojuznogo simpoziuma. Uzhgorod. 44–45 (1988), (in Russian).
  12. Bambura A. M.  Eksperymentalni osnovy prykladnoi deformatsiinoi teorii zalizobetonu: avtoref. dys. na zdobuttia stupenia d-ra tekhn. nauk: spets.  05.23.01 "Budivelni konstruktsii, budivli ta sporudy". KhDTUBA. Kharkiv (2006), (in Ukrainian).
Mathematical Modeling and Computing, Vol. 8, No. 3, pp. 391–399 (2021)