【摘要】 研究装配式混凝土框架结构的抗震性能，特别关注装配整体式连接和后张预应力混合连接这两类节点的非线性行为。采用OpenSees软件对这两类节点进行精细的数值模拟，通过低周反复加载试验数据验证了模型的准确性。基于验证后的节点模型，建立了三榀三跨六层的装配式混凝土框架结构模型，并应用增量动力分析方法对结构进行易损性分析。研究综合考虑了节点连接部位的材料非线性及接触非线性特征及其对结构整体抗震性能的影响。结果显示，在低烈度地震下，两类装配式节点连接的框架结构与现浇框架结构表现出相近的抗震性能；但在高烈度地震下，装配整体式连接框架结构和后张预应力混合连接框架结构的抗震性能与现浇框架结构存在显著差异。本文研究为装配式混凝土框架结构的抗震性能评估和设计提供了科学依据。更多还原

【Abstract】 This study investigates the seismic performance of prefabricated concrete frame structures, with a particular focus on the nonlinear behavior of assembled integral connections and post-tensioned prestressed hybrid connections. Using OpenSees software, detailed numerical simulations of these two types of joints are conducted and validated against low-cycle repeated loading test data. Based on the validated joint models, a three-bay, three-span, six-story prefabricated concrete frame structure model is established. Incremental Dynamic Analysis(IDA) is employed to perform vulnerability analysis of the structure. The study comprehensively considers the nonlinear characteristics and nonlinearity contacted of the joint connections and their impact on the overall seismic performance of the structure. Results show that under low-intensity earthquakes, the frame structures with both types of connections exhibit similar seismic performance to cast-in-place frame structures. However, under high-intensity earthquakes, there are differences in the seismic performance of the prefabricated integral connection frame structures and post-tensioned prestressed hybrid connection frame structures compared to cast-in-place frame structures. This research provides a scientific basis for the seismic performance evaluation and design of prefabricated concrete frame structures.更多还原