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Structural Engineering and Mechanics Volume 61, Number 4, February25 2017 , pages 511-518 DOI: https://doi.org/10.12989/sem.2017.61.4.511 |
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Effect of Ferro-cement retrofit in the stiffened infill RC frame |
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Suyamburaja Arulselvan and P. Sathiaseelan
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| Abstract | ||
| This paper presents an experimental investigation on the contribution of RCC strip in the in-filled RC frames. In this research, two frames were tested to study the behavior of retrofitted RC frame under cyclic loading. In the two frame, one was three bay four storey R.C frame with central bay brick infill with RCC strip in-between brick layers and the other was retrofitted frame with same stiffened brick work. Effective rehabilitation is required some times to strengthened the RC frames. Ferrocement concrete strengthening was used to retrofit the frame after the frame was partially collapsed. The main effects of the frames were investigated in terms of displacement, stiffness, ductility and energy dissipation capacity. Diagonal cracks in the infill bays were entirely eliminated by introducing two monolithic RCC strips. Thus more stability of the frame was obtained by providing RCC strips in the infill bays. Load carrying capacity of the frame was increased by enlarging the section in the retrofitted area. | ||
| Key Words | ||
| RCC strip; Ferro-cement retrofit; load-displacement; stiffness; ductility; energy dissipation; load carrying capacity | ||
| Address | ||
| Suyamburaja Arulselvan : Department of Civil Engineering, Coimbatore Institute of Technology, Civil Aerodrome Post, Coimbatore-641014, Tamilnadu, India P. Sathiaseelan: Department of Civil Engineering, PPG Institute of Technology, Saravanampatti, Coimbatore-641035, Tamilnadu, India | ||