TAILIEUCHUNG - Basic Theory of Plates and Elastic Stability - Part 27

Tài liệu tham khảo giáo trình cơ học kết cấu trong ngành xây dựng bằng Tiếng Anh - Yamaguchi, E. “Basic Theory of Plates and Elastic Stability” Structural Engineering Handbook Ed. Chen Wai-Fah Boca Raton: CRC Press LLC, 1999 - Passive Energy Dissipation and Active Control | Soong . and Dargush . Passive Energy Dissipation and Active Control Structural Engineering Handbook Ed. Chen Wai-Fah Boca Raton CRC Press LLC 1999 Passive Energy Dissipation and Active Control . Soong and . DargUsh Department of Civil Engineering State University of New York at Buffalo Buffalo NY Introduction Basic Principles and Methods of Analysis Single-Degree-of-Freedom Structural Systems Multi-Degree-of-FreedomStructuralSystems EnergyFormulations Energy-Based Design Recent Development and Applications Passive Energy Dissipation Active Control Code Development Concluding Remarks References Introduction In recent years innovative means of enhancing structural functionality and safety against natural and man-made hazards have been in various stages of research and development. By and large they can be grouped into three broad areas as shown in Table 1 base isolation 2 passive energy dissipation and 3 active control. Of the three base isolation can nowbe considered a more mature technology with wider applications as compared with the other two 2 . TABLE Structural Protective Systems Seismic isolation Passive energy dissipation Active control Elastomeric bearings Lead rubber bearings Metallic dampers Friction dampers Viscoelastic dampers Viscous fluid dampers Active bracing systems Active mass dampers Variable stiffness or damping systems Sliding friction pendulum Tuned mass dampers Tuned liquid dampers Passive energy dissipation systems encompass a range of materials and devices for enhancing damping stiffness and strength and can be used both for natural hazard mitigation and for rehabilitation of aging or deficient structures 46 . In recent years serious efforts have been undertaken to develop the concept of energy dissipation or supplemental damping into a workable technology and a number of these devices have been installed in structures throughout the world. In general 1999 by CRC Press LLC such systems are

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