Stress-strain relationship of high-strength steel (HSS) reinforcing bars

Retno Anggraini*, Tavio, I. Gede Putu Raka, Agustiar

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

10 Citations (Scopus)

Abstract

The introduction of High-Strength Steel (HSS) reinforcing bars in reinforced concrete members has gained much attention in recent years and led to many advantages such as construction timesaving. It is also more economical since it can reduce the amount of reinforcing steel bars used in concrete members which in turn alleviates the congestion of reinforcement. Up to present, the building codes, e.g. American Concrete Institute (ACI) 318M-14 and Standard National Indonesia (SNI) 2847:2013, still restrict the use of higher-strength steel reinforcing bars for concrete design up to Grade 420 MPa due to the possible suspected brittle behavior of concrete members. This paper evaluates the characteristics of stress-strain relationships of HSS bars if they are comparable to the characteristics of those of Grade 420 MPa. To achieve the objective of the study, a series of steel bars from various grades (420, 550, 650, and 700 MPa) was selected. Tensile tests of these steel samples were conducted under displacement-controlled mode to capture the complete stress-strain curves and particularly the post-yield response of the steel bars. The results indicate that all the steel bars tested had the actual yield strengths greater than the corresponding specified values. The stress-strain curves of HSS reinforcing bars (Grade 550, 650, and 700 MPa) performed slightly different characteristics with those of Grade 420 MPa.

Original languageEnglish
Title of host publicationProceedings of the International Seminar on Metallurgy and Materials, ISMM 2017
Subtitle of host publicationMetallurgy and Advanced Material Technology for Sustainable Development
EditorsM. Yunan Hasbi, Daniel Panghihutan Malau, Dhyah Annur, M. Ikhlasul Amal, Satrio Herbirowo, Yulinda Lestari
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735416697
DOIs
Publication statusPublished - 15 May 2018
Event1st International Seminar on Metallurgy and Materials: Metallurgy and Advanced Material Technology for Sustainable Development, ISMM 2017 - Jakarta, Indonesia
Duration: 24 Oct 201725 Oct 2017

Publication series

NameAIP Conference Proceedings
Volume1964
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference1st International Seminar on Metallurgy and Materials: Metallurgy and Advanced Material Technology for Sustainable Development, ISMM 2017
Country/TerritoryIndonesia
CityJakarta
Period24/10/1725/10/17

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