Abstract This study analyzes the shear and hysteresis behavior of Y-type perfobond rib shear connector and suggests a hysteretic model. Y-type perfobond rib shear connectors with different number of ribs (4 ribs, 6 ribs, and 8 ribs) are considered to evaluate energy dissipation. The aim of this study is to do estimation on hysteretic behavior for large number of ribs, as the size of large number of ribs makes it difficult to proceed with an experiment. Numerical analysis and experimental study are conducted to compare the shear strength and energy dissipation of the specimens. In the experimental study, monotonic loading test and cyclic loading test are performed to investigate the hysteresis behavior of Y-type perfobond rib shear connectors. Cyclic loading test is performed in accordance with European Convention for Constructional Steelwork (ECCS) reference which is a procedure of test for assessing the behavior of structural elements under cyclic loadings. Numerical analysis is conducted since the authentication of Y-type perfobond rib shear connector should be modelled to find the shear resistance of each specimen. For hysteretic model of Y-type perfobond rib shear connector, Bouc-Wen-Baber-Noori (BWBN) model is adopted. Finally, the BWBN model parameters are predicted for shear connectors with large number of ribs based on the experimental data of shear connectors with small number of ribs. The slip amplitude is separated into small slips (1–4 mm) and large slips (over 4 mm) in order to improve the accuracy of the energy dissipation prediction.

中文翻译：

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具有大量筋的Y型perfobond筋连接器的滞回模型

摘要 本研究分析了Y型perfobond肋剪力连接件的剪切和滞后行为，并提出了一个滞后模型。考虑使用具有不同肋数（4 肋、6 肋和 8 肋）的 Y 型 perfobond 肋剪力连接件来评估能量耗散。本研究的目的是对大量肋条的滞后行为进行估计，因为大量肋条的尺寸使得进行实验变得困难。通过数值分析和实验研究，比较了试件的抗剪强度和能量耗散。在实验研究中，进行了单调加载试验和循环加载试验，以研究Y型perfobond肋剪力连接件的滞后行为。循环加载测试是根据欧洲建筑钢结构公约 (ECCS) 参考进行的，这是一种评估结构元件在循环加载下的行为的测试程序。由于Y型perfobond肋剪力连接件的认证需要建模，以求出每个试件的抗剪强度，因此进行数值分析。Y型穿孔肋条抗剪连接件的滞回模型采用Bouc-Wen-Baber-Noori(BWBN)模型。最后，基于少筋剪力连接件的试验数据，预测了多筋剪力接头的BWBN模型参数。滑移幅度分为小滑移（1-​​4 mm）和大滑移（超过4 mm），以提高能量耗散预测的准确性。