US-PRC Collaborative Research on Aseismic Hybrid Protective Systems for Tall Buildings

该项目是乔治华盛顿大学（GWU）和中国哈尔滨建筑与土木工程学院（HACEI）根据《美中科学与工程议定书》开展高层建筑抗震混合防护系统的合作研究地震研究技术合作。混合抗震防护系统由基础隔震系统和小型主动控制装置相结合而成，最适用于高层建筑。虽然在基础隔离系统和主动控制系统的各个领域分别进行了许多研究，但每个单独的应用都存在严重的局限性。混合系统可以很好地保证地震作用下高层建筑的结构完整性。GWU将对混合系统的各种组合和配置进行理论研究，包括不同的基础隔离系统和不同的小型主动控制装置。将在HACEI对安装在不同类型的基础隔离系统上的比例模型结构进行实验测试，并由小型主动控制装置实施。将使用为混合系统开发的各种控制算法。实验测试的结果将与相应的解析/数值解相关联。相关性的差异以及系统设计和仪器的物理和实际限制将被调查。本研究具有为高层建筑和大型结构提供有效的工程抗震防护体系的潜力。

This project is to carry out a collaborative research on aseismic hybrid protective systems for tall buildings between The George Washington University (GWU) and the Harbin Architectural and Civil Engineering Institute (HACEI) of China under the US-PRC Protocol for Scientific and Technical Cooperation in Earthquake Studies. Aseismic hybrid protective system consists of a combination of a base isolation system and small active control devices which is most suitable for tall buildings. While many studies have been carried out separately in each area of base isolation system and active control system, there are serious limitations for each individual applications. A hybrid system can be used advantageously to ensure the structural integrity of seismic-excited tall buildings. Theoretical studies will be carried out at GWU for various combinations and configurations of hybrid systems, including different base isolation systems and different small active control devices. Experimental tests will be conducted at HACEI on a scaled model structure mounted on different types of base isolation systems and implemented by small active control devices. Various contol algorithms developed for hybrid systems will be used. Results of experimental tests will be correlated with the corresponding analytical/numerical solutions. Discrepancies in the correlation as well as physical and practical limitations in system design and instrumentation will be investigated. This research has the potential to provide an effective engineering seismic protection system for tall buildings and large structures.