Recently, as a new precast concrete (PC) construction method for increasing economy and constructability, the PC double-beam system has been developed for factories or logistic centers, where construction duration is particularly important. In this study, half-scaled PC double beam–column connection was tested under gravity loading and cyclic lateral loading. The major test parameters included the use of the spliced PC column and the addition of reinforcement at the beam–column joint. In the gravity loading test, the flexural behavior of the PC double beam was investigated. The test results showed satisfactory flexural capacity at the PC double-beam section, validating the composite action between the PC and RC members. In the cyclic lateral loading test, the seismic performance of the PC double beam–column connection was investigated. Based on the test results, the failure mode, load-carrying capacity, deformation capacity, energy dissipation capacity, secant stiffness, and shear strength of the PC double-beam system were evaluated and compared with those of a conventional RC double beam–column connection. According to the test results, the structural performance of the PC double beam–column connection was comparable to that of the RC double beam–column connection and satisfied the acceptance criteria of moment frame in the ACI 374.1-05 provision.

中文翻译：

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PC双梁-柱连接在重力和地震荷载下的结构性能

近年来，作为一种提高经济性和可施工性的新型预制混凝土 (PC) 施工方法，PC 双梁系统已被开发用于工期特别重要的工厂或物流中心。在这项研究中，在重力加载和循环横向加载下测试了半比例 PC 双梁柱连接。主要测试参数包括使用拼接 PC 柱和在梁柱接头处添加钢筋。在重力加载试验中，研究了PC双梁的弯曲行为。试验结果表明 PC 双梁截面具有令人满意的抗弯能力，验证了 PC 和 RC 构件之间的复合作用。在循环横向荷载试验中，研究了PC双梁柱连接的抗震性能。根据试验结果，对PC双梁系统的破坏模式、承载能力、变形能力、耗能能力、割线刚度和抗剪强度进行了评估，并与传统的钢筋混凝土双梁柱连接进行了比较。 . 根据试验结果，PC双梁-柱连接的结构性能与RC双梁-柱连接相当，满足ACI 374.1-05规定的弯矩框架验收标准。