TY - JOUR
T1 - Experimental and analytical studies on steel-reinforced concrete composite members with bonded prestressed CFRP tendon under eccentric tension
AU - Deng, Yu
AU - Shen, Minhe
AU - Zhang, Hexin
AU - Zhang, Peng
AU - Yuen, Yu Ping
AU - Hansapinyo, Chayanon
AU - Wang, Peijun
AU - Usmani, Asif
AU - Khan, Afrasyab
AU - Zhao, Jia Jian
N1 - Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2021/9/1
Y1 - 2021/9/1
N2 - This paper reported the very earliest experimental and analytical studies on the bonded Prestressed CFRP tendon enhanced Steel Reinforced Concrete (PSRC) members under eccentric tensile loads. Eight PSRC members were tested under monotonic eccentric tensile loading, and three Steel Reinforced Concrete (SRC) members were simultaneously tested for comparison. The load–deflection relationship, the strain distributions as well as the crack propagation and fracture of concrete were investigated experimentally and analytically. The results demonstrated an improvement in the eccentric tensile capacity of PSRC members upon increasing both the steel and reinforcement ratios, or by reducing the prestress eccentricity. The results also suggested that an enhancement in the level of prestressing increased can decrease the crack propagation and lateral deflection. Moreover, the validity of the plane-section assumption was confirmed. An analytical model was proposed for predicting the elastic bending capacity of the PSRC members based on the experimental results. The study provided an in-depth understanding of the structural behaviour of PSRC members with bonded prestressed CFRP tendon under the eccentric tension underpinned by the elaborate experimental design and practical analytical model.
AB - This paper reported the very earliest experimental and analytical studies on the bonded Prestressed CFRP tendon enhanced Steel Reinforced Concrete (PSRC) members under eccentric tensile loads. Eight PSRC members were tested under monotonic eccentric tensile loading, and three Steel Reinforced Concrete (SRC) members were simultaneously tested for comparison. The load–deflection relationship, the strain distributions as well as the crack propagation and fracture of concrete were investigated experimentally and analytically. The results demonstrated an improvement in the eccentric tensile capacity of PSRC members upon increasing both the steel and reinforcement ratios, or by reducing the prestress eccentricity. The results also suggested that an enhancement in the level of prestressing increased can decrease the crack propagation and lateral deflection. Moreover, the validity of the plane-section assumption was confirmed. An analytical model was proposed for predicting the elastic bending capacity of the PSRC members based on the experimental results. The study provided an in-depth understanding of the structural behaviour of PSRC members with bonded prestressed CFRP tendon under the eccentric tension underpinned by the elaborate experimental design and practical analytical model.
KW - Bonded prestressed CFRP
KW - Eccentric tension
KW - Prestressed steel-reinforced concrete composite structure
KW - Steel-reinforced concrete composite structure
UR - http://www.scopus.com/inward/record.url?scp=85107126641&partnerID=8YFLogxK
U2 - 10.1016/j.compstruct.2021.114124
DO - 10.1016/j.compstruct.2021.114124
M3 - Article
AN - SCOPUS:85107126641
SN - 0263-8223
VL - 271
SP - 1
EP - 26
JO - Composite Structures
JF - Composite Structures
M1 - 114124
ER -