Strengthening of bi-axially loaded RC slab-column connection using steel plates and stiffeners

• Main Authors: Zainab A. Neamah, Munaf A. Al-Ramahee
• Format: Article
• Language: English
• Published: Warsaw University of Life Sciences 2021-04-01
• Series: Przegląd Naukowy Inżynieria i Kształtowanie Środowiska
• Subjects: bi-axial loads; eccentric load; flat slab; strengthening; steel plates
• Online Access: http://iks.pn.sggw.pl/PN91/A3/art3.pdf

This paper presented a strengthening technique for enhancement reinforced concrete (RC) slab-column connection behavior using steel plates and steel stiffeners. A bi-axial load was applied with an eccentricity of 150 mm in both x and z directions. Four specimens with dimensions of 1,600 × 1,600 × 100 mm were tested in this research. The steel plate dimensions were chosen to be 600 × 600 and 800 × 800 mm with 6 mm thickness. The steel stiffeners are used to support and enhance the steel plate that it is extended from column to the slab-column connection with different dimension. The results showed an improvement in the stiffness of slab and increasing in the ultimate capacity. Also, when the steel plates dimensions increased, the ultimate capacity and stiffness increased.