Braced Oil Dampers for Buildings

Osamu Takahashi is a Professor at Tokyo University of Science, founder of Science Kozo Inc., and an advisor to the New International Structural design & engineering Challenge Association, in Japan.Atsuki Yokoyama works in the Research and Development department of Sanwa Tekki Corporation and has a PhD in Engineering from Tokyo University of Science.

• Part 1. Development and Analytical Modeling of Braced Oil Dampers for Buildings. 1. Introduction. 2. Development of an oil damper for buildings considering damping characteristics and various dependencies. 3. Analytical model of a single building oil damper. 4. Damping characteristics and analytical model of brace-type oil damper. 5. Evaluation of vibration damping performance of actual building using brace-type oil damper and confirmation experiment. 6. Analytical model and verification of building oil damper under small amplitude. 7. Conclusion to Part 1. Appendix 1. Example of implementation in a high-rise building (office building, Atago 2-chome Project (tentative name)). Appendix 2. Example of implementation in a reinforced building (Aizu-Tajima Joint Government Building, Fukushima Prefecture). Part 2. Development of the oil damper stiffness for architectural vibration control and experimental research on structural characterization. 8. Preface. 9. Configuration and Characteristics of Stiffness-Supported Oil Dampers. 10. Analysis Model for Stiffness-Supported Oil Dampers. 11. Examination Involving Time History Response Analysis Based On Single Degree-of-Freedom Model. 12. Converted Is and q Values of Building Incorporating Stiffness-Supported Oil Dampers. 13. Conclusion to Part 2. Appendix 3. The Low-Loss Viscoelastic Material's Dependence on Temperature and Vibration Frequency.