TY - JOUR
T1 - Estimation of minimum torsional reinforcement of reinforced concrete and steel fiber-reinforced concrete members
AU - Ju, Hyunjin
AU - Han, Sun Jin
AU - Zhang, Dichuan
AU - Kim, Jong
AU - Wu, Wei
AU - Kim, Kang Su
N1 - Publisher Copyright:
© 2019 Hyunjin Ju et al.
PY - 2019
Y1 - 2019
N2 - The current code specifies a minimum torsional reinforcement ratio to prevent possible brittle failure after torsional cracking in concrete members. However, since there are many researches, in which even the concrete members with the minimum torsional reinforcement fail to secure sufficient reserved strength after torsional cracking, continuous research needs to be carried out. Accordingly, in the authors' previous research, a minimum torsional reinforcement ratio was proposed based on the reserved strength concept and was extended to the steel fiber-reinforced concrete members in order to suggest the minimum fiber factor as the minimum torsional reinforcement ratio. In the present study, a pure torsion test was carried out on reinforced concrete and steel fiber-reinforced concrete members after a brief introduction on the above, and the proposed model was verified based on the test results. The test results of six torsional specimens were compared with those of the proposed model, and it was found that the proposed model provides a reasonable evaluation on the torsional failure mode of the specimen according to the reserved strength ratio.
AB - The current code specifies a minimum torsional reinforcement ratio to prevent possible brittle failure after torsional cracking in concrete members. However, since there are many researches, in which even the concrete members with the minimum torsional reinforcement fail to secure sufficient reserved strength after torsional cracking, continuous research needs to be carried out. Accordingly, in the authors' previous research, a minimum torsional reinforcement ratio was proposed based on the reserved strength concept and was extended to the steel fiber-reinforced concrete members in order to suggest the minimum fiber factor as the minimum torsional reinforcement ratio. In the present study, a pure torsion test was carried out on reinforced concrete and steel fiber-reinforced concrete members after a brief introduction on the above, and the proposed model was verified based on the test results. The test results of six torsional specimens were compared with those of the proposed model, and it was found that the proposed model provides a reasonable evaluation on the torsional failure mode of the specimen according to the reserved strength ratio.
UR - http://www.scopus.com/inward/record.url?scp=85063481721&partnerID=8YFLogxK
U2 - 10.1155/2019/4595363
DO - 10.1155/2019/4595363
M3 - Article
AN - SCOPUS:85063481721
SN - 1687-8434
VL - 2019
JO - Advances in Materials Science and Engineering
JF - Advances in Materials Science and Engineering
M1 - 4595363
ER -