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Advances in Concrete Construction Volume 6, Number 5, October 2018 , pages 509-525 DOI: https://doi.org/10.12989/acc.2018.6.5.509 |
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Experimental evaluation of splicing of longitudinal bars with forging welding in flexural reinforced concrete beams |
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Mohammad K. Sharbatdar, Omid Mohammadi Jafari and Mohammad S. Karimi
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| Abstract | ||
| In this paper the application of forging process as benefit technique in Reinforced Concrete (RC) beam bars and comparison to lap splices was experimentally investigated with four concrete beam specimens with same dimensions and reinforcement details. The reference specimen was with no splices and the other three beams were with different splices (100% forging in the middle, 50% forging, and 100% lap splices in the middle). Beams were tested with the four points load system. Experimental test results indicated that using forging process as new bar splicing method can have high effects on increasing ductility and energy dissipation of concrete structures. It also proved that this method increased the flexural rigidity, energy absorption, and ductility of the RC beams. And also this research results showed that the flexural capacity and ductility of the beam with 50% forging were respectively increased up to 10% and 75% comparing to that of reference specimen, but the energy absorption of this beams was decreased up to 27%. The ductility of beam with 50% forging was increased up to 25% comparing the ductility of beam with 100% forging. | ||
| Key Words | ||
| forging welding; GPW; flexural capacity; ductility; energy absorption; lap splice | ||
| Address | ||
| Mohammad K. Sharbatdar, Omid Mohammadi Jafari and Mohammad S. Karimi: Civil Engineering Faculty, Semnan University, Semnan, Iran | ||
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