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Punching shear strengthening of flat-slabs with CFRP dowels
Date
2010-07-01
Author
ERDOĞAN, HAKAN
Binici, Barış
Ozcebe, G.
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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An economical and easy-to-install strengthening method to enhance the punching shear capacity of slab-column connections in existing deficient flat-plate structures is presented in this study. Seven specimens representing typical interior slab-column connections were tested and experimental results are reported in detail. The strengthening scheme employs the use of in-house fabricated carbon fibre reinforced polymer (CFRP) dowels placed around the column stubs in different numbers and arrangements as vertical shear reinforcement. The test results indicated that the ultimate punching shear capacity of the strengthened specimens improved up to 1.33 times that of the specimen without any strengthening. The experimental punching shear capacities and observed failure modes of the specimens were compared with the estimations of strength and failure modes given by the punching shear strength provisions of three different concrete design codes.
Subject Keywords
General Materials Science
,
Civil and Structural Engineering
,
Building and Construction
URI
https://hdl.handle.net/11511/34755
Journal
MAGAZINE OF CONCRETE RESEARCH
DOI
https://doi.org/10.1680/macr.2010.62.7.465
Collections
Department of Civil Engineering, Article