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对一个包含钢管混凝土柱和螺栓端板连接钢梁的组合结构框架系统的抗震性能进行试验研究。根据现行的抗震规范和之前的研究设计出一个10层的建筑模型。提出的分析模型可以预测出在一系列地表运动记录下的模型框架的弹塑性性能。比例为4∶7的子结构模型由两层组成,且为1个半跨度,采用拟动力混合试验法对其进行模拟地震作用。试验结果表明,模拟地震作用下的模型性能与不同地震灾害等级的分析结果相吻合。最后,进行拟静力试验和推覆试验来确定试验模型的最终失效模式。研究显示,所提出的结构系统可以提供抗震设计所需要的适当的强度和足够的延性。
The seismic performance of a composite frame system with a steel-concrete column and a bolt-end connected steel beam is studied. According to the current seismic code and previous research to design a 10-story building model. The proposed analytical model predicts the elasto-plastic behavior of the model framework under a series of surface motion records. The substructure model with a ratio of 4: 7 consists of two layers and has a half-span. The quasi-dynamic mixing test is used to simulate the earthquake action. The experimental results show that the model performance under simulated earthquake agrees well with the analysis results of different earthquake disaster levels. Finally, the quasi-static test and the pushover test are performed to determine the final failure mode of the test model. Research shows that the proposed structural system can provide the appropriate strength and ductility required for aseismic design.