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首页> 外文期刊>Advances in Concrete Construction >Experimental evaluation of splicing of longitudinal bars with forging welding in flexural reinforced concrete beams
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Experimental evaluation of splicing of longitudinal bars with forging welding in flexural reinforced concrete beams

机译：钢筋混凝土梁的锻造焊接纵筋拼接试验研究

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摘要

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.
机译：本文采用锻造工艺作为有益技术在钢筋混凝土（RC）梁中的应用以及与搭接的对比研究，使用了四个具有相同尺寸和钢筋细节的混凝土梁试样。参比试样没有接头，而其他三个梁则有不同的接头（中间为100％锻造，中间为50％锻造，搭接为100％搭接）。用四点载荷系统测试梁。实验结果表明，采用锻造工艺作为新的钢筋拼接方法对提高混凝土结构的延性和能量耗散具有较高的效果。还证明了该方法提高了RC梁的抗弯刚度，能量吸收和延性。这项研究结果还表明，与参考试样相比，在50％锻造时，梁的抗弯能力和延性分别提高了10％和75％，但梁的能量吸收却降低了27％。与100％锻造的梁的延展性相比，50％锻造的梁的延展性提高到25％。

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