The method of analysis of a reinforced concrete section under bending in the post-yield range
Jacek Korentz
Institute of Structural Engineering; Faculty of Civil and Environmental Engineering; University of Zielona Góra (Poland)
https://orcid.org/0000-0002-1521-8681
Abstract
Predicting the behavior of plastic hinges subjected to large inelastic deformations caused by extreme loads such as earthquakes plays an important role in assessing maximum stable deformation capacities of framed concrete structures. This paper presents an analytical procedure for analysing the behaviour of a reinforced concrete section under bending in the post-yield range. The following stages of section behaviour are defined as the uncracked; first cracked; yielding; cover crushing; cover spalling; buckling of bars; and limit stages. The relationship between the moment and curvature in these stages, including the effects of concrete confinement, the spalling of the concrete cover, and the inelastic buckling of the reinforced bars, are considered. The results obtained from analytical calculations have are compared to the results obtained from a computer analysis. The presented method makes it possible to estimate the ductility of reinforced concrete members with various longitudinal and transverse reinforcement.
Keywords:
RC section, bending, ductility, curvature, post-yield rangeReferences
Aliawdin P., Kasabutski S., Limit and shakedown analysis of RC rood cross section, Journal of Civil Engineering Management, 2009, Vol.15, No.1, 59-66.
DOI: https://doi.org/10.3846/1392-3730.2009.15.59-66
Google Scholar
CEB Bulletin d’Information No 242, 1988, Ductility of reinforced concrete structures.
Google Scholar
Darwin D., Nmai Ch.K., Energy dissipation in RC beams under cyclic load, Journal of Structural Engineering, ASCE, 1985, Vol.112, No.8, s.1829-1846.
DOI: https://doi.org/10.1061/(ASCE)0733-9445(1986)112:8(1829)
Google Scholar
Karthik M.M., Mander J.B., Stress-block parameters for unconfined and confined concrete based on a unified stress-strain model, 2011, Journal of Structural Engineering, Vol.137, No5, 270-273.
DOI: https://doi.org/10.1061/(ASCE)ST.1943-541X.0000294
Google Scholar
Kent D.Ch., Park R., Flexural members with confined concrete, Journal of Structural Division, Proceedings ASCE, Vol.97, No.ST7, 1971, 1969-1990.
DOI: https://doi.org/10.1061/JSDEAG.0002957
Google Scholar
Korentz J., O nowej metodzie modelowania pracy przegubu plastycznego w belkach i słupach żelbetowych, 52 Konferencja Naukowa KILiW PAN i KN PZITB, Gdańsk-Krynica, 2005, t.3 Konstrukcje betonowe, 89-96.
DOI: https://doi.org/10.2166/wst.2005.0682
Google Scholar
Korentz J., Model betonu uzwojonego w elementach mimośrodowo ściskanych i zginanych, Problemy naukowo-badawcze budownictwa, t.6 Badawczo-projektowe zagadnienia w budownictwie, Białystok-Krynica, 2008, 221-228.
Google Scholar
Korentz J., Model zależności moment-krzywizna dla belek żelbetowych - ocena ciągliwości, 55KN KILiW PAN i KN PZiTB, Problemy naukowo-badawcze budownictwa, Kielce-Krynica, 2009, 231-238.
Google Scholar
Korentz J., Niesprężyste wyboczenie prętów, model zjawiska, Zeszyty Naukowe Politechniki Rzeszowskiej, Budownictwo i Inżynieria Środowiska, 2012, nr 283, z.59, 101-108.
Google Scholar
Park R., Priestley M.J.N., Gill D., Ductility of square-confined concrete columns, Journal of the Structural Division, ASCE, 1982, Vol.108, No.ST4, s.929-950.
DOI: https://doi.org/10.1061/JSDEAG.0005933
Google Scholar
PN-EN 1992-1-1:2008, Eurokod 2: Projektowanie konstrukcji z betonu, Cz.1. Reguły ogólne i reguły dla budynków.
Google Scholar
PN-EN 1998-1:2005 (U) Eurokod 8: Projektowanie konstrukcji poddanych oddziaływaniom sejsmicznym - Część 1: Reguły ogólne, oddziaływania sejsmiczne i reguły dla budynków.
Google Scholar
Praca zbiorowa, Podstawy projektowania konstrukcji żelbetowych i sprężonych według Eurokodu 2, 2006, Dolnośląskie Wydawnictwo Edukacyjne.
Google Scholar
XTRACT v3.0.8, Cross-sectional X Structural Analysis of Components, Imbsen Software System, 2007, http://www.imbsen.com
Google Scholar
Authors
Jacek KorentzInstitute of Structural Engineering; Faculty of Civil and Environmental Engineering; University of Zielona Góra Poland
https://orcid.org/0000-0002-1521-8681
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