An experimental study on the effect of CFRP on behavior of reinforce concrete beam column connections

Qiang Xie , Hamid Sinaei , Mahdi Shariati , Majid Khorami , Edy Tonnizam Mohamad , Dieu Tien Bui

Abstract

The aim of this research is reinforcing of concrete with variety of fiber reinforced polymer (FRP) configurations and investigates the load capacity and ductility of these connections using an experimental investigation. Six scaled-down RC exterior joints were tested under moderately monotonic loads. The results show that, the shape of the FRP had a different effect on the joint capacity and the connection ductility coefficient. The greatest effect on increasing the ductility factor was seen in the sample where two reinforcement plates were used on both sides of the beam web (RCS5 sample). For the sample with the presence of FRP plates at the top and bottom of the beam (RCS3 sample), the ductility factor was reduced even the load capacity of this sample increased. Except for the RCS3 sample, the rest of the samples exhibited an increase in the ductility factor due to the FRP reinforcement.

Key Words

CFRP plate; plastic hinge relocation; finite element; rehabilitation; strengthening

Address

(1) Qiang Xie — School of Civil Engineering, Central South University, Changsha, Hunan 410075, China
(2) Qiang Xie — Hunan City University, Yiyang, Hunan 413000, China
(3) Hamid Sinaei — Faculty of Civil Engineering, University of Tabriz, Tabriz, Iran
(4) Mahdi Shariati — Faculty of Civil Engineering, University of Tabriz, Tabriz, Iran
(5) Majid Khorami — Universidad UTE, Facultad de Arquitectura y Urbanismo, Calle Rumipamba s/n y Bourgeois, Quito, Ecuador
(6) Edy Tonnizam Mohamad — Centre of Tropical Geoengineering (GEOTROPIK), Faculty of Civil Engineering, Universiti Teknologi Malaysia, Johor Bahru, Malaysia
(7) Dieu Tien Bui — Institute of Research and Development, Duy Tan University, Da Nang 550000, Vietnam.

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