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http://dx.doi.org/10.15683/kosdi.2021.12.31.829

Development of Air Spring Damper System(ASDS)  

Kim, Dong Baek (Construction Engineering Research Institute/ Department of Civil ＆ Environment Engineering, Hankyong National University)
Park, Heung Sik (Construction Engineering Research Institute/ Department of Civil ＆ Environment Engineering, Hankyong National University)
Publication Information
Journal of the Society of Disaster Information / v.17, no.4, 2021 , pp. 829-838 More about this Journal
Abstract
Purpose: The Air Spring Damper System (ASDS) is proposed when existing concrete structures that have not been seismic resistant for economic and technical reasons or low-rise concrete structures that are difficult to earthquake. Method: To conduct a study on the damping force antigen in the kinetic equation of free vibration, we analyze whether this device has damping ability as a damper experimentally and theoretically, and examine the possibility of field application. Result: The air damper system is considered to be more economical than steel hysteresis dampers even if the number of dampers increases due to its easy manufacture and construction and low restrictions on shape, size, material, etc. Conclusion: In an air spring damper system, it is essential to reduce the diameter of the air inlet/outlet hole to improve the damping ratio, and in this case, if the diameter exceeds a certain lower limit, consideration of the compressibility of air is required, so further research is needed.
Keywords
Seismic Resistant; Free Vibration; Damping Force; Damping Ratio; Compressibility of Air;
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