الفهرس 
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Abstract
The current study aims to evaluate the features of the tension lap splice in UHPFRC beams. An experimental program was conducted to investigate the flexural behavior of UHPFRC beams with a variable length of lap splice. The splice length, the shape of the anchor at the splice ends, the bar diameter, and the amount of transverse reinforcement provided in the splice zone are all strategy parameters included in the experimental program to obtain the minimum effective lap splice length and validate the safety of lap splice length design methods in accordance with UHPFRC design recommendations and current code provisions. In this context, fifteen UHPFRC beams were prepared and configured to be failed in flexural. One beam was used as a control without a lap splice, and fourteen beams were tested with proposed splice lengths of 10, 20, and 30 times the diameter of the bar based on UHPFRC design recommendations. All beams were tested under vertical load through hydraulic jack in increments of 2kN/s .The experimental results showed that the splice length formula of the Japan Society of Civil Engineers ( 20ϕ) was sufficient to achieve steel rebar yielding and exhibited ductile behavior in UHPFRC beams. The proposed short splice length of 10ϕ in this paper was sufficient to achieve yield stress of reinforcement and maximum ductility in the case of using hooked at splice ends, and that’s when compared to a beam without splice. Such findings are in accordance with the Japan Society of Civil Engineers