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212 Ketter Hall, North Campus, Buffalo, NY 14260 www.civil.buffalo.edu Fax: 716 645 3733 Tel: 716 645 2114 x 2400

212 Ketter Hall, North Campus, Buffalo, NY 14260 www.civil.buffalo.edu Fax: 716 645 3733 Tel: 716 645 2114 x 2400 Control of Structural Vibrations Lecture #5 Devices and Models (12) Metallic Dampers Instructor: Andrei M. Reinhorn P.Eng. D.Sc. Professor of Structural Engineering.

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212 Ketter Hall, North Campus, Buffalo, NY 14260 www.civil.buffalo.edu Fax: 716 645 3733 Tel: 716 645 2114 x 2400

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  1. 212 Ketter Hall, North Campus, Buffalo, NY 14260 www.civil.buffalo.edu Fax: 716 645 3733 Tel: 716 645 2114 x 2400 Control of Structural Vibrations Lecture #5 Devices and Models (12) Metallic Dampers Instructor: Andrei M. Reinhorn P.Eng. D.Sc. Professor of Structural Engineering

  2. Metallic Hysteretic Dampers • Models and Implemented Devices

  3. Hysteretic Damping Devices

  4. Flexural Plate Device (b/L)x Max: stresses at all sections 1) Mx = P x 2) Wx = (b/L )x t2 /6 3) fx = 6 P / t2 (b/L) Stress constant at all sections: L x t P

  5. Stresses in Plate Dampers

  6. ADAS - [Flour-Daniel Ltd]

  7. ADAS Device in Structure

  8. ADAS - [Flour-Daniel Ltd]

  9. Application

  10. Flexural Conical Beam Device

  11. T-ADAS - Metalic Damper

  12. T-ADAS Device

  13. T-ADAS Device

  14. Sivaselvan-Reinhorn ModelMCEER Report #MCEER-99-0018 Model used in IDARC2DVer.5.0

  15. Sivaselvan & Reinhorn, 1999

  16. Mathematical Model for Plate Damper

  17. Triangular Plate Metallic Element

  18. Triangular Plate Element

  19. Behavior of Metallic Damper

  20. Modeling Durability of Metallic Dampers

  21. Modelling of Structures with Additional Hysteretic Dampers

  22. Additional Hysteretic Dampers

  23. Japanese Web Shear Device

  24. Lead Extrusion Device

  25. Lead Extrusion

  26. Lead Joint Damper

  27. Flexural Beam Device

  28. U Strip Device

  29. Yielding Steel Bracing SystemTyler, 1985, New Zealand

  30. Torsional Beam DeviceNew Zealand, Rocking Bridge Peers

  31. Friction (Hysteretic) Dampers • Models and Implemented Devices

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