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- Title
Strengthening of non-seismically detailed reinforced concrete beam-column joints using SIFCON blocks.
- Authors
MISIR, I; KAHRAMAN, S
- Abstract
This article aims to propose a novel seismic strengthening technique for non-seismically detailed beam-column joints of existing reinforced concrete buildings, typical of the pre-1975 construction practice in Turkey. The technique is based on mounting pre-fabricated SIFCON composite corner and plate blocks on joints with anchorage rods. For the experimental part three 2/3 scale exterior beam-column joint specimens were tested under quasi-static cyclic loading. One of them was a control specimen with non-seismic details, and the remaining two with the same design properties were strengthened with composite blocks with different thickness and anchorage details. Results showed that the control specimen showed brittle shear failure at low drift levels, whereas in the strengthened specimens, plastic hinge formation moved away from column face allowing specimens to fail in flexure. The proposed technique greatly improved lateral strength, stiffness, energy dissipation, and ductility.
- Subjects
STRENGTH of materials; REINFORCED concrete; THICKNESS measurement; SHEAR (Mechanics); FLEXURE; ENERGY dissipation; DUCTILITY; STIFFNESS (Engineering)
- Publication
Sādhanā: Academy Proceedings in Engineering Sciences, 2013, Vol 38, Issue 1, p69
- ISSN
0256-2499
- Publication type
Article
- DOI
10.1007/s12046-013-0127-3