Experimental Analysis of Strengthening of Dapped-End Beams

Jiří Rymeš; Petr Štemberk; Alena Kohoutková

doi:10.4028/www.scientific.net/KEM.722.241

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 722Experimental Analysis of Strengthening of...

Experimental Analysis of Strengthening of Dapped-End Beams

Abstract:

Technology of precast reinforced concrete finds its application in construction of buildings as well as transport infrastructure. Placement of a dapped-end beam on a corbel is one of the typical details for this construction technology. Designing of a dapped-end is crucial for the whole beam because any potential crack decreases the overall stiffness of the beam and can cause a collapse of the whole structure in the worst case. This paper presents results of an experimental research which was performed on a set of 6 small-scale dapped-end beams. Two different ways of prestressing were applied to experimental specimens and their ultimate-load bearing capacity were compared with plain concrete samples and with reinforced concrete samples. The results of this work suggest that horizontal prestressing technique is more efficient than vertical prestressing technique if the same prestressing force is applied.

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Periodical:

Key Engineering Materials (Volume 722)

Pages:

241-246

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.722.241

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Online since:

December 2016

Authors:

Jiří Rymeš*, Petr Štemberk, Alena Kohoutková

Keywords:

Dapped-End Beam, D-Regions, Experimental Analysis, Prestressing, Reinforced Concrete

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References

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