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

• Autorzy: Neamah Zainab A. , Al-Ramahee Munaf A.

Identyfikatory

DOI

10.22630/PNIKS.2021.30.1.3

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

bi-axial loads; eccentric load; flat slab; strengthening; steel plates

• Wydawca: Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
• Czasopismo: Przegląd Naukowy Inżynieria i Kształtowanie Środowiska
• Rocznik: 2021
• Tom: Vol. 30, No. 1
• Strony: 29--37
• Opis fizyczny: Bibliogr. 13 poz., rys., tab., wykr.

Twórcy

autor

Neamah Zainab A.

• University of Al-Qadisiyah College of Engineering

autor

Al-Ramahee Munaf A.

• University of Al-Qadisiyah College of Engineering

• https://orcid.org/0000-0002-1922-9871

Bibliografia

• Abbas, H., Abadel, A.A., Almusallam, T. & Al- -Salloum, Y. (2015). Effect of CFRP and TRM strengthening of RC slabs on punching shear strength. Latin American Journal of Solids and Structures, 12(9), 1616-1640.
• Abdelaziz, H., El-Nawawy, O., El-Karmoty, H. & Abu-Beah, A. (2019). Behavior of flat slabs using ultra high strength concrete under the effect of eccentric punching shear. International Journal of Scientific and Engineering Research, 10(4), 528-540.
• Alam, A.M.J. & Amanat, K.M. (2013). Fe analysis on the effect of flexural steel on punching shear of slabs. International Journal of Engineering Research and Technology, 2(6), 2878-2901.
• Al-Khekany, A.M., Al-Ramahee, M.A. & Al- -Yassri, L.S. (2020). Experimental and numerical investigations of composite concrete steel flexural members with angle shear connectors under negative moment. Periodicals of Engineering and Natural Sciences, 8(4), 2107-2117.
• Al-Ramahee, M.A., Chan, T., Mackie, K.R., Ghasemi, S. & Mirmiran, A. (2017). Lightweight UHPC-FRP composite deck system. Journal of Bridge Engineering, 22(7), 04017022. https://www.doi.org/10.1061/(ASCE)BE.1943-5592.0001049
• Ebead, U. & Marzouk, H. (2002). Strengthening of two-way slabs using steel plates. Structural Journal, 99(1), 23-31.
• Elbakry, H.M. & Allam, S.M. (2015). Punching strengthening of two-way slabs using external steel plates. Alexandria Engineering Journal, 54(4), 1207-1218.
• Inácio, M., Ramos, A., Lúcio, V. & Faria, D. (2013). Punching of high strength concrete flat slabs – experimental investigation. In Proceedings of the Fib Symposium Tel Aviv 2013. https://www.doi.org/10.13140/2.1.325 1.5849
• Jang, J.I. & Kang, S.M. (2019). Punching Shear Behavior of Shear Reinforced Slab–Column Connection with Varying Flexural Reinforcement. International Journal of Concrete Structures and Materials, 13(1), 1-14.
• Kadhim, S.S. & Ammash, H.K. (2019). Steel stiffeners for enhancement of slab-column connections. Al-Qadisiyah Journal for Engineering Sciences, 12(4), 199-206.
• Marzouk, H., Emam, M. & Sameh Hilal, M. (1998). Effect of high-strength concrete slab on the behavior of slab-column connections. ACI Structural Journal, 95, 227-237.
• Meisami, M.H., Mostofinejad, D. & Nakamura, H. (2015). Strengthening of flat slabs with FRP fan for punching shear. Composite Structures, 119, 305-314.
• Shaaban, I. (2013). Strengthening of reinforced concrete slab-column connection subjected to punching shear with FRP systems. International Journal of Engineering and Technology, 5(6), 657-661.