Embedded carbon fiber‑reinforced polymer rod in reinforced concrete frame and ultra‑high‑performance concrete frame joints

International Journal of Advanced Structural Engineering

دوره 11، شماره 1، آبان 2019، صفحه 535-551   

شناسه دیجیتال (DOI): 10.30495/ijase.2019.705778

نویسندگان

Shahnaz Basim¹؛ Farzad Hejazi²؛ Raizal Saifulnaz Bin Muhammad Rashid1¹

¹Department of Civil Engineering, University Putra Malaysia (UPM), Serdang, Malaysia

²Housing Research Centre, University Putra Malaysia (UPM), Serdang, Malaysia

چکیده

Beam–column joints play an important role in providing lateral stiffness and integrity of frames during dynamic loading
such as earthquake. In the high humidity areas, during functioning of the building cracks occur, which leads to the corrosion
of the reinforcement due to the environmental exposures. Therefore, one of the main failures mechanism of building during
an earthquake is caused by easily yielding of corroded steel reinforcement, which leads to reduce functionality of the frame
joints in transferring the loads. This study proposed a new design to reinforce the beam-column joints with embedded carbon
fiber-reinforced polymer (CFRP) rods, due to their extremely high strength and stiffness, along with the fact that they will
not rust or corrode and very light weight. CFRP rods are used in reinforced concrete (RC) frame and ultra-high-performance
concrete (UHPC) frame subjected to dynamic load. The prototype of the proposed design is constructed as frame with conventional
concrete and frame with UHPC material to conduct experiments Test as well as numerical analysis to evaluate the
performance of the proposed joints under dynamic loads. The results showed improvement in the performance of the frames
reinforced with embedded CFRP in joints in terms of lateral load resistance capacity, ductility behaviour, overall stiffness,
and failure mechanism.

کلیدواژه‌ها

CFRP · Dynamic load · Ultra؛ high؛ performance concrete · Embedded CFRP · Frame · Experiment test · FEM