Embedded carbon fiber‑reinforced polymer rod in reinforced concrete frame and ultra‑high‑performance concrete frame joints
محورهای موضوعی : structural mechanics
Shahnaz Basim
1
(
Department of Civil Engineering, University Putra Malaysia
(UPM), Serdang, Malaysia
)
Farzad Hejazi
2
(
Housing Research Centre, University Putra Malaysia (UPM),
Serdang, Malaysia
)
Raizal Saifulnaz Bin Muhammad Rashid1
3
(
Department of Civil Engineering, University Putra Malaysia
(UPM), Serdang, Malaysia
)
کلید واژه: high, CFRP · Dynamic load · Ultra, performance concrete · Embedded CFRP · Frame · Experiment test · FEM,
چکیده مقاله :
Beam–column joints play an important role in providing lateral stiffness and integrity of frames during dynamic loadingsuch as earthquake. In the high humidity areas, during functioning of the building cracks occur, which leads to the corrosionof the reinforcement due to the environmental exposures. Therefore, one of the main failures mechanism of building duringan earthquake is caused by easily yielding of corroded steel reinforcement, which leads to reduce functionality of the framejoints in transferring the loads. This study proposed a new design to reinforce the beam-column joints with embedded carbonfiber-reinforced polymer (CFRP) rods, due to their extremely high strength and stiffness, along with the fact that they willnot rust or corrode and very light weight. CFRP rods are used in reinforced concrete (RC) frame and ultra-high-performanceconcrete (UHPC) frame subjected to dynamic load. The prototype of the proposed design is constructed as frame with conventionalconcrete and frame with UHPC material to conduct experiments Test as well as numerical analysis to evaluate theperformance of the proposed joints under dynamic loads. The results showed improvement in the performance of the framesreinforced with embedded CFRP in joints in terms of lateral load resistance capacity, ductility behaviour, overall stiffness,and failure mechanism.
