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首页> 外文期刊>ScientificWorldJournal >Seismic Performance of RC Beam-Column Connections with Continuous Rectangular Spiral Transverse Reinforcements for Low Ductility Classes
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Seismic Performance of RC Beam-Column Connections with Continuous Rectangular Spiral Transverse Reinforcements for Low Ductility Classes

机译：用于低延展性等级的连续矩形螺旋横向增强型RC梁柱连接的地震性能

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摘要

The seismic performance of RC columns could be significantly improved by continuous spiral reinforcement as a result of its adequate ductility and energy dissipation capacity. Due to post-earthquake brittle failure observations in beam-column connections, the seismic behaviour of such connections could greatly be improved by simultaneous application of this method in both beams and columns. In this study, a new proposed detail for beam to column connection introduced as “twisted opposing rectangular spiral” was experimentally and numerically investigated and its seismic performance was compared against normal rectangular spiral and conventional shear reinforcement systems. In this study, three full scale beam to column connections were first designed in conformance with Eurocode (EC2-04) for low ductility class connections and then tested by quasistatic cyclic loading recommended by ACI Building Code (ACI 318-02). Next, the experimental results were validated by numerical methods. Finally, the results revealed that the new proposed connection could improve the ultimate lateral resistance, ductility, and energy dissipation capacity.
机译：由于其充分的延展性和能量耗散能力，通过连续螺旋增强，RC柱的地震性能可以显着提高。由于梁柱连接中的地震后脆性故障观察，通过在光束和列中同时施加这种方法，可以大大提高这种连接的地震行为。在本研究中，通过实验和数值研究了作为“扭曲相对的矩形螺旋”引入的梁到柱连接的新提出细节，并将其抗正常螺旋和常规剪切钢筋系统进行了数值研究并进行了地震性能。在本研究中，首先使用ACI建筑代码推荐的Quasistatic循环加载（ACI 318-02）的Quasistatic循环载荷来设计三个全尺度梁至列连接。接下来，通过数值方法验证实验结果。最后，结果表明，新的建议可以提高最终的横向电阻，延展性和能量耗散能力。

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