Ductility of Eccentrically Compressed Elements of RC Frame Damaged by Corrosion under Accidental Impacts
Abstract
The impact of aggressive environments and, accordingly, the corrosion damage of concrete and reinforcing steel, the violation of adhesion between them in some areas lead to a change in the values of the limiting height of the compressed zone, which determine the plastic or brittle mechanism for the destruction of structures of reinforced concrete frame buildings. The purpose of the presented study was to assess the influence of the depth of corrosion damage on the ultimate height of the compressed zone of the section of eccentrically compressed elements of reinforced concrete frames of buildings, as well as to assess the bearing capacity of these elements. The article presents analytical dependences for estimating the limit value of the height of the compressed zone of the section of a corrosion-damaged reinforced concrete element of the building frame with a two-line approximation of the state diagram of concrete.
It has been established that an increase in the depth of corrosion damage leads to a decrease in the height of the compressed section zone relative to the part of the working height of the section that retained the resource of force resistance, as well as to a decrease in the bearing capacity of eccentrically compressed reinforced concrete elements due to a decrease in the effective working height of the section and an increase in their flexibility. An increase in the flexibility of the elements leads to a decrease in the magnitude of the limiting longitudinal force perceived by eccentrically compressed reinforced concrete elements. At the same time, an increase in the relative depth of corrosion damage enhances this effect due to an increase in the effective flexibility of such elements compared to elements without damage.
About the Authors
S. Yu. Savin
Moscow State University of Civil Engineering (National Research University) (MGSU)
Sergey Yu., Candidate of Technical Sciences, Associate Professor, Associate Professor of the Department of Reinforced Concrete and Masonry Structures
Scopus: 57052453700, ResearcherID: M-8375-2016
26 Yaroslavskoe shosse, Moscow, 129337
V. I. Kolchunov
Moscow State University of Civil Engineering (National Research University) (MGSU)
Russian Federation
Russian Federation
Vitaly I. Kolchunov, Full Member of RAACS, Professor, Doctor of Technical Sciences, Professor of the Department of Reinforced Concrete and Masonry Structures, Moscow State University of Civil Engineering (National Research University) (MGSU), head of the department of Southwest State University
Scopus ID: 55534147800, ResearcerID: J-9152-2013
26 Yaroslavskoe shosse, Moscow, 129337
N. V. Fedorova
Moscow State University of Civil Engineering (National Research University) (MGSU)
Russian Federation
Russian Federation
NataliaV. Fedorova, Doctor of Technical Sciences, Professor, Head of the Department of Architectural and Construction Design, Director of the branch of Moscow State University of Civil Engineering (National Research University) (MGSU) in Mytishchi
Scopus: 57196437054, ResearcherID: О-8119-2015
26 Yaroslavskoe shosse, Moscow, 129337
References
1. UFC 4-023-03 (Including Change 3, 2016) Unified facilities criteria. Design of buildings to resist progressive collapse. URL: https://wbdg.org/FFC/DOD/UFC/ufc_4_023_03_2009_c3.pdf (Accessed on 18.10.2022)
2. BS 8110-1:1997 Structural use of concrete. URL: https://crcrecruits.files.wordpress.com/2014/04/bs8110-1-1997-structural-use-of-concrete-design-construction.pdf (Accessed on 18.10.2022)
3. EN 1992-1-1-2009 Eurocode 2: Design of concrete structures. URL: https://www.phd.eng.br/wp-content/up-loads/2015/12/en.1992.1.1.2004.pdf (Accessed on 18.10.2022)
4. EN 1991-1-7-2009 General Actions – Accidental Actions. URL: https://www.phd.eng.br/wp-content/up-loads/2015/12/en.1991.1.7.2006.pdf (Accessed on 18.10.2022)
5. ДБН В.1.2-14:2018 Общие принципы обеспечения надежности и конструктивной безопасности зданий, сооружений строительных конструкций и оснований. Киев: Министерство регионального развития, строительства и жилищно-коммунального хозяйства, 2018. URL: https://armis.com.ua/blog/library/dbn/155-dbn-v-1-2-14-2018 (Accessed on 18.10.2022)
6. SP 296.1325800.2017 Buildings and structures. Accidental actions. Moscow: Minstroy RF, 2017. URL: https://docs.cntd.ru/document/555600219 (Accessed on 18.10.2022)
7. SP 385.132580.2018 Protection of buildings and structures against progressive collapse. Design code. Basic statements. Moscow: Minstroy RF, 2018. URL: https://docs.cntd.ru/document/551394640 (Accessed on 18.10.2022)
8. Phama A.T., Tana K.H., Jun Yu J. Numerical investigations on static and dynamic responses of reinforced concrete sub-assemblages under progressive collapse. Engineering Structures. 2017. Vol. 149. Pp. 2-20. doi: 10.1016/j.eng-struct.2016.07.042
9. Al-Salloum Y. A., Abbas H., Almusallam T. H., Ngo T., Mendis P. Progressive collapse analysis of a typical RC high-rise tower. Journal of King Saud University - Engineering Sciences. 2017. Vol. 29. Pp. 313-320. doi: 10.1016/j.jksues.2017.06.005
10. Dinua F., Marginean I., Dubina D., Kovacs A., Ghicioi E. Experimental testing and numerical modeling of steel frames under close-in detonations. Procedia Engineering. 2017. Vol. 210, pp. 377-385. Doi: 10.1016/j.proeng.2017.11.091
11. Goel M. D., Agrawal D., Choubey A. Collapse Behavior of RCC Building under Blast Load. Procedia Engineering. 2017. Vol. 173, pp. 1943-1950. Doi: 10.1016/j.proeng.2016.12.256
12. Elsanadedy H. M., Almusallam T. H., Alharbi Y. R., Al-Salloum Y. A., Abbas H. Progressive collapse potential of a typical steel building due to blast attacks. Journal of Constructional Steel Research. 2014. Vol. 101, pp. 143-157. Doi: 10.1016/j.jcsr.2014.05.005
13. Shapiro G.I., Obuhova L.V., Eysman Yu.A., Sirotina E.V. Protection against progressive collapse of residential buildings of the first period of industrial housing construction series 1-510, 1-511, 1-515. Promyshlennoye i grazhdanskoye stroitel'stvo. 2006. no 4. P.32-35.
14. Kolchunov V.I., Savin S.Y. Dynamic effects in a composite two-component rods which appear when local fracture of the matrix is occurred. Journal of Applied Engineering Science. 2017. Vol 15, No 3, pp: 325-331. doi:10.5937/jaes15-14602
15. Bondarenko V.M., Klyueva N.V. To the calculation of structures that change the design scheme due to corrosion damage. News of higher educational institutions. Construction. 2008. no. 1, P. 4-12.
16. Bondarenko V.M., Kolchunov V.I. Exposition of reinforced concrete robustness. News of higher educational institutions. Construction. 2007. No. 5, P. 4-8.
17. Selyaev V.P., Selyaev P.V., Alimov M.F., Sorokin E.V. Estimation of residual resources of reinforced concrete bending elements subjected to the action of chloride corrosion. Building and Reconstruction. 2017. No 6. P. 49-58.
18. Chupichev O.B. Models for calculating the force resistance of a corrosion-damaged reinforced concrete element. Building and Reconstruction. 2010. No 1. P. 55–59.
19. SP 63.13330.2018 SNiP 52-01-2003 Concrete and reinforced concrete structures. General provisions. Moscow: Minstroy RF, 2020. 150 p.
20. GOST 27751-2014 Reliability of building structures and foundations. Basic provisions. Moscow: JSC “Re-search Center” Construction ", 2019. URL: https://docs.cntd.ru/document/1200115736 (Accessed on 18.10.2022)
Review
For citations:
Savin S.Yu., Kolchunov V.I., Fedorova N.V. Ductility of Eccentrically Compressed Elements of RC Frame Damaged by Corrosion under Accidental Impacts. Reinforced concrete structures. 2023;1(1):46-54. (In Russ.)
Views:
305
Email this article 