To evaluate the progressive collapse resistance of precast concrete (PC) structures, various test methods have been used in existing experimental studies. However, verification of whether the progressive collapse resistance can be evaluated equivalently by different test methods has been limitedly investigated. In this study, three simplified and three half-frame test specimens were tested under monotonic vertical loading to investigate the effects of the test method on their progressive collapse resistance. As the test parameters, types of test specimens (i.e., sub-frame, simplified, and half-frame specimens), and joint details (i.e., reinforced concrete (RC) continuous joint, PC with continuous joint, and PC with pinned joint) were directly compared. The test results showed that the progressive collapse resistance was primarily affected by the overall lateral stiffness of the exterior columns () rather than the test setup. When increased in the simplified specimens, the axial force transferred by the beams increased, resulting in an increase in the peak strength (). Further, the effect of on the peak strength was greater in PC specimens with pinned joints than in RC and PC specimens with continuous joints. To investigate the effect of on the , a parametric study was conducted using the existing CAA strength model. The parametric study results also indicated that the relationship between the increase in and was not significantly governed by the test setup for the same joint details. These results indicated that various simplified test methods can be used to evaluate the progressive collapse resistance of PC structures when an adequate range of is provided. Based on the test and parametric study results, recommendations for progressive collapse tests were discussed.

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评估预制混凝土框架结构抗连续倒塌性能的简化试验方法

为了评估预制混凝土（PC）结构的抗连续倒塌性能，现有的实验研究中使用了各种测试方法。然而，对于是否可以通过不同的试验方法等效地评估连续倒塌抗力的验证研究还很有限。在这项研究中，三个简化和三个半框架试件在单调垂直荷载下进行了测试，以研究测试方法对其抗连续倒塌能力的影响。作为测试参数，测试样本的类型（即子框架、简化和半框架样本）和接头细节（即钢筋混凝土（RC）连续接头、PC 连续接头和 PC 销钉接头）进行了直接比较。测试结果表明，渐进式抗倒塌能力主要受到外部柱整体横向刚度的影响（），而不是测试设置的影响。当简化样本增加时，梁传递的轴向力增加，导致峰值强度（）增加。此外，具有销接接头的 PC 样本对峰值强度的影响大于具有连续接头的 RC 和 PC 样本。为了研究 的影响，使用现有的 CAA 强度模型进行了参数研究。参数研究结果还表明，对于相同的接头细节，增加和增加之间的关系并不受测试设置的显着控制。这些结果表明，当提供足够的范围时，可以使用各种简化的测试方法来评估PC结构的抗连续倒塌能力。根据测试和参数研究结果，讨论了渐进式倒塌测试的建议。