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首页> 外文期刊>Science and Engineering of Composite Materials >Performance of a transfer beam with hybrid reinforcement of CFRP bars and steel bars under reversed cyclic loading
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Performance of a transfer beam with hybrid reinforcement of CFRP bars and steel bars under reversed cyclic loading

机译：循环荷载作用下CFRP筋与钢筋混合加固的传递梁性能

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Hybrid carbon fiber reinforced plastic (CFRP) and steel bar reinforcement concrete were applied in a transfer beam. Three specimens (ZHL-2, ZHL-3, and ZHL-4) corresponded to different forms of reinforcement, reinforcement ratio, and reinforced root number, respectively. The pseudo static test of the three specimens was carried out under the condition of vertical loading and horizontal reversed cyclic loading. The flexural property and failure mode of the transfer beams were demonstrated. Further, the ductility, energy dissipation capability, hysteretic characteristics, structural yield mechanism, and failure mechanism were also studied. The exploration of these factors was aimed to study the bearing capacity and seismic performance of the transfer beam with hybrid CFRP and steel bars. The test results show that if both the upper and lower longitudinal reinforcements were replaced by CFRP bars with a symmetrical reinforcement, the mechanical property and deformation performance would be superior. The performance would be better than the reinforcements with single upper and lower replacement by CFRP bars. Both the upper and lower longitudinal bars of the transfer beam should be replaced by CFRP bars with a symmetrical form of reinforcement. The ductility performance would be better for the transfer beam with the hybrid reinforcement of CFRP bars and steel bars. It showed a seismic performance. The transfer beam with the hybrid reinforcement of CFRP bars and steel bars could meet the design requirements for the ductile frame “strong column, weak beam and strong node.”
机译：混合碳纤维增强塑料（CFRP）和钢筋增强混凝土被应用在传递梁中。三个标本（ZHL-2，ZHL-3和ZHL-4）分别对应于不同形式的增强，增强比和增强根数。在垂直载荷和水平反向循环载荷条件下对这三个试样进行了拟静力试验。演示了传递梁的弯曲特性和破坏模式。此外，还研究了延性，能量耗散能力，滞后特性，结构屈服机理和破坏机理。这些因素的探索旨在研究混合CFRP和钢筋的传递梁的承载力和抗震性能。试验结果表明，如果将上下纵向钢筋都用具有对称钢筋的CFRP筋代替，则力学性能和变形性能会更好。该性能将比用CFRP钢筋单独更换上部和下部的钢筋更好。传输梁的上部和下部纵向钢筋都应替换为具有对称钢筋形式的CFRP钢筋。 CFRP筋和钢筋的混合加固对于转移梁的延性性能会更好。它表现出抗震性能。 CFRP筋与钢筋混合加固的传递梁可以满足延性框架“强柱，弱梁，强节点”的设计要求。

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