IJERT-Flexural Behavior of Rectangular Concrete Beams with Lap Splices between Deformed and Smooth Reinforcement Bars (original) (raw)
2013, International Journal of Engineering Research and Technology (IJERT)
https://www.ijert.org/flexural-behavior-of-rectangular-concrete-beams-with-lap-splices-between-deformed-and-smooth-reinforcement-bars https://www.ijert.org/research/flexural-behavior-of-rectangular-concrete-beams-with-lap-splices-between-deformed-and-smooth-reinforcement-bars-IJERTV2IS120547.pdf The aim of this research is to study flexural behaviour rectangular concrete beams with lap splice between deformed and smooth bars. An experimental program has been performed to investigate the research point, where sixteen rectangular concrete beams were tested in a four point bend configuration. Specimens were grouped into four groups to investigate influences of lap splice length, stirrups intensity and location, end shape, and concrete characteristic strength (N.S.C and H.S.C). It was concluded that distributing stirrups along the splice length increase failure load more than concentrating them at splice ends; end shaping of splices increases failure load; Increasing splice length compared with that required for transmission of tensile stresses through bond decreases ductility; linearity of strain distribution along reinforcement bars increase by the increase and uniformity of stirrups confinement; increasing splice length decreases the difference between strain in deformed and smooth bars.
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