TY - GEN
T1 - Tensile strength/yield strength (TS/YS) ratios of high-strength steel (HSS) reinforcing bars
AU - Tavio,
AU - Anggraini, Retno
AU - Raka, I. Gede Putu
AU - Agustiar,
N1 - Publisher Copyright:
© 2018 Author(s).
PY - 2018/5/15
Y1 - 2018/5/15
N2 - The building codes such as American Concrete Institute (ACI) 318M-14 and Standard National Indonesia (SNI) 2847:2013 require that the ratio of tensile strength (TS) and yield strength (YS) should not less than 1.25. The requirement is based on the assumption that a capability of a structural member to develop inelastic rotation capacity is a function of the length of the yield region. This paper reports an investigation on various steel grades, namely Grades 420, 550, 650, and 700 MPa, to examine the impact of different TS/YS ratios if it is less or greater than the required value. Grades 550, 650, and 700 MPa were purposely selected with the intention to examine if these higher grades are still promising to be implemented in special structural systems since they are prohibited by the building codes for longitudinal reinforcement, whereas Grade 420 MPa bars are the maximum limit of yield strength of reinforcing bars that is allowable for longitudinal reinforcement of special structural systems. 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. From the study, it can be concluded that Grade 420 performed higher TS/YS ratios and they were able to reach up to more than 1.25. However, the High Strength Still (HSS) bars (Grades 550, 600, and 700 MPa) resulted in lower TS/YS ratios (less than 1.25) compared with those of Grade 420 MPa.
AB - The building codes such as American Concrete Institute (ACI) 318M-14 and Standard National Indonesia (SNI) 2847:2013 require that the ratio of tensile strength (TS) and yield strength (YS) should not less than 1.25. The requirement is based on the assumption that a capability of a structural member to develop inelastic rotation capacity is a function of the length of the yield region. This paper reports an investigation on various steel grades, namely Grades 420, 550, 650, and 700 MPa, to examine the impact of different TS/YS ratios if it is less or greater than the required value. Grades 550, 650, and 700 MPa were purposely selected with the intention to examine if these higher grades are still promising to be implemented in special structural systems since they are prohibited by the building codes for longitudinal reinforcement, whereas Grade 420 MPa bars are the maximum limit of yield strength of reinforcing bars that is allowable for longitudinal reinforcement of special structural systems. 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. From the study, it can be concluded that Grade 420 performed higher TS/YS ratios and they were able to reach up to more than 1.25. However, the High Strength Still (HSS) bars (Grades 550, 600, and 700 MPa) resulted in lower TS/YS ratios (less than 1.25) compared with those of Grade 420 MPa.
UR - http://www.scopus.com/inward/record.url?scp=85047833656&partnerID=8YFLogxK
U2 - 10.1063/1.5038318
DO - 10.1063/1.5038318
M3 - Conference contribution
AN - SCOPUS:85047833656
T3 - AIP Conference Proceedings
BT - Proceedings of the International Seminar on Metallurgy and Materials, ISMM 2017
A2 - Hasbi, M. Yunan
A2 - Malau, Daniel Panghihutan
A2 - Annur, Dhyah
A2 - Amal, M. Ikhlasul
A2 - Herbirowo, Satrio
A2 - Lestari, Yulinda
PB - American Institute of Physics Inc.
T2 - 1st International Seminar on Metallurgy and Materials: Metallurgy and Advanced Material Technology for Sustainable Development, ISMM 2017
Y2 - 24 October 2017 through 25 October 2017
ER -