Abstract This paper aims to investigate different combinations of Bolted Extended End-Plate (BEEP) beam-to-column connections where the column sections are of the built-up box type. Therefore, some allowable combinations of beam-to-column subassemblages were chosen according to the AISC provisions, such as Strong Column-Weak Beam. Since the prequalified BEEP connections are generally attached to wide-flange column sections, there will be some complexities in the erection and bolts fastening processes involved where built-up box columns are used. One of these complexities is the closed inner space of such columns. Thus, a novel connection configuration is proposed to overcome these complexities. Hence, a number of 28 different connection subassemblages were modeled in ABAQUS finite element analysis software and tested under the connection qualification cyclic loading conditions. Hence, after verifying the numerical modeling's acceptable accuracy with two experimental models, the main proposed models were investigated, and their responses were evaluated. The results of this study indicate that this new proposed connection can satisfy the connection qualification criteria. However, further experimental studies are needed to be conducted to approve the practical use of this proposed connection.

中文翻译：

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Stub-Beam Bolted Extended End-plate connection to box-column的参数化研究

摘要 本文旨在研究螺栓扩展端板 (BEEP) 梁柱连接的不同组合，其中柱截面为组合箱型。因此，根据 AISC 的规定，选择了一些允许的梁柱子组合，例如强柱弱梁。由于通过资格预审的 BEEP 连接通常连接到宽翼缘柱部分，因此在使用组合箱柱的安装和螺栓紧固过程中会存在一些复杂性。这些复杂性之一是这些柱子的封闭内部空间。因此，提出了一种新颖的连接配置来克服这些复杂性。因此，在 ABAQUS 有限元分析软件中对 28 个不同的连接组件进行建模，并在连接鉴定循环加载条件下进行测试。因此，在用两个实验模型验证了数值建模可接受的精度后，对主要提出的模型进行了研究，并对它们的响应进行了评估。这项研究的结果表明，这种新建议的连接可以满足连接资格标准。但是，需要进行进一步的实验研究以批准这种建议连接的实际用途。这项研究的结果表明，这种新建议的连接可以满足连接资格标准。但是，需要进行进一步的实验研究以批准这种建议连接的实际用途。这项研究的结果表明，这种新建议的连接可以满足连接资格标准。但是，需要进行进一步的实验研究以批准这种建议连接的实际用途。