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Faculty of Civil Engineering


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CONFERENCE PROCEEDINGS
4th INTERNATIONAL CONFERENCE
CONTEMPORARY ACHIEVEMENTS IN CIVIL ENGINEERING 2016 , 2016.y., pp. 143-153


EFFECT OF STRAIN HARDENING ON REINFORCED CONCRETE SECTION STRENGTH UNDER BENDING
 
DOI: 10.14415/konferencijaGFS 2016.013
UDC: 624.01.45.044
CC-BY-SA 4.0 license
Author : Tatar, Saša; Vukomanović, Radovan; Zrnić, Dragan
 
 Summary:
 This paper analyses the influence of strain hardening on the amount of calculated reinforcement steel and section strength. It is based on the Eurocode for design of concrete structures which offeres the choice between a bi-linear design stressstrain curve with a horisontal or an inclined top branch accountng for the strainhardening effect. For this paper, a sample of a locally available reinforcement steel (B500) has been tested in order to compare its characteristics to the values specified in the code. A comparisson of section strength and calculated steel area was made for specific examples of singly and doubly reinforced sections. Based on these examples, certain conclusions were drawn about the effect of strain hardening on section strength and calculated steel area, as well as the feasibility of the coresponding stress-straing diagrams, compared to the traditional ones, where strain hardening is ignored.
 
 Keywords:
 Reinforced concrete, section strength, Eurocode, design stress-strain diagram, strain hardening