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传统的抗震设计方法将设备系统简化为荷载,这不能准确反映结构与设备的共同作用,为此,有必要将结构系统与设备系统作为主子耦合系统来考虑。根据设备系统在地震作用下的震害现象,研究设备系统的破坏模式和破坏准则;提出主子耦合系统的性能水准和性能目标,分析主子耦合系统的破坏准则;建立直接空冷结构体系主子耦合的有限元计算模型,进行非线性时程分析,考察直接空冷结构体系塑性铰的发展过程,基于数值计算和试验资料提出直接空冷结构体系主子耦合系统的性能目标,可供结构设计使用。
The traditional seismic design method simplifies the equipment system to a load, which can not accurately reflect the joint action between the structure and the equipment. Therefore, it is necessary to consider the structural system and the equipment system as the master-slave coupling system. According to the earthquake damage phenomenon of the equipment system under earthquake, the failure modes and failure criteria of the equipment system are studied. The performance level and performance target of the host-coupler system are proposed, and the failure criterion of the master-slave coupling system is analyzed. Elemental calculation model, the nonlinear time-history analysis is conducted to investigate the development process of the plastic hinges in the direct air-cooled structural system. Based on the numerical calculation and experimental data, the performance objectives of the main sub-coupling system of the direct air-cooled structural system are proposed for structural design.