TY - JOUR
T1 - Bridge pier extension with carbon-fiber reinforced polymer flexural reinforcement
T2 - Experimental tests and three-dimensional finite element modeling
AU - Tan, Cheng
AU - Xu, Jia
AU - Aboutaha, Riyad S.
N1 - Funding Information:
The authors gratefully acknowledge the financial support of Shandong Luqiao Group. The authors would also like to acknowledge the work of the technicians at Shandong Jiaotong University and Shandong University.
Publisher Copyright:
Copyright © 2021, American Concrete Institute. All rights reserved
PY - 2021/1
Y1 - 2021/1
N2 - This paper presents a study on extension of bridge pier cap beams reinforced with carbon fiber-reinforced polymer (CFRP) systems. Experimental tests and numerical modeling of quarter-scaled reinforced concrete hammerhead non-prismatic pier cap beams, extended on edges and reinforced with different CFRP systems, are presented. Five specimens were tested to evaluate the effect of various CFRP systems on ultimate strength, stiffness, and ductility. It was found that the failure mode changes as different CFRP systems are applied, which consequently impacted the ultimate strength and ductility of extended cap beams. A three-dimensional finite element (FE) model was developed and presented in this paper. Failure mode and load-deflection response were successfully captured using the proposed FE model. Comparison and discussion of flexural capacities predicted using the FE model and current guideline were presented.
AB - This paper presents a study on extension of bridge pier cap beams reinforced with carbon fiber-reinforced polymer (CFRP) systems. Experimental tests and numerical modeling of quarter-scaled reinforced concrete hammerhead non-prismatic pier cap beams, extended on edges and reinforced with different CFRP systems, are presented. Five specimens were tested to evaluate the effect of various CFRP systems on ultimate strength, stiffness, and ductility. It was found that the failure mode changes as different CFRP systems are applied, which consequently impacted the ultimate strength and ductility of extended cap beams. A three-dimensional finite element (FE) model was developed and presented in this paper. Failure mode and load-deflection response were successfully captured using the proposed FE model. Comparison and discussion of flexural capacities predicted using the FE model and current guideline were presented.
KW - Carbon fiber-reinforced polymer
KW - Finite element modeling
KW - Flexural reinforcing
KW - Pier cap beam extension
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U2 - 10.14359/51728093
DO - 10.14359/51728093
M3 - Article
AN - SCOPUS:85100959316
SN - 0889-3241
VL - 118
SP - 251
EP - 262
JO - ACI Structural Journal
JF - ACI Structural Journal
IS - 1
ER -