Development of Air Spring Damper System(ASDS)

doi:10.15683/kosdi.2021.12.31.829

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2021 Vol.17, Issue 4 Preview Page Next Page

Original Article

Development of Air Spring Damper System(ASDS) 공기 스프링 댐퍼 시스템(ASDS)의 개발: 김동백¹*ㆍ박흥식²
Dong Baek Kim¹*, Heung Sik Park²; ¹Professor, Construction Engineering Research Institute/ Department of Civil ＆ Environment Engineering, Hankyong National University, An Seong, Republic of Korea
²Lecturer, Construction Engineering Research Institute/ Department of Civil ＆ Environment Engineering, Hankyong National University, An Seong, Republic of Korea

31 December 2021. pp. 829-838

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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

연구목적: 경제적, 기술적 이유로 내진설계가 되지 않은 기존의 콘크리트 구조물이나 내진설계나 면진시공이 어려운 저층의 콘크리트 구조물이 지진력을 받을 때, 액체가 아닌 공기를 이용한 감쇠장치인 공기 스프링 댐퍼 시스템(Air Spring Damper System, ASDS)을 제안하고 한다. 연구방법: 자유진동의 운동방정식에서 감쇠력(Damping Force) 항인 에 대한 연구를 수행하고자 하며, 이 장치가 댐퍼로서의 감쇠능력을 갖는 지에 대하여 실험적, 이론적으로 분석하며 현장적용에 대한 가능성 여부를 검토한다. 연구결과: 에어 댐퍼 시스템은 제작 및 시공이 간편하고 형상, 크기, 재료 등에 제한이 적어서 댐퍼의 개수가 증가하더라도 강재 이력형 댐퍼에 비하여 월등히 경제적이라 사료된다. 결론: 공기 스프링 댐퍼 시스템에서는 감쇠비를향상을 위하여 공기 입출용 구멍의 직경을 줄이는 것이 필수이지만, 직경이 어느 이하의 크기로 줄어들면 공기의 압축성에 대한 고려가 필요하므로 공기 입출용 구멍의 직경과 공기 압축성의 상관성에 대하여 추가적인 연구가 필요하다.

키워드

내진설계

자유진동

감쇠력

감쇠비

공기의 압축성

References

Clough, R.W., Penzien, J. (2014). Dynamics of Structures. Pearson Higher Education, UK, pp. 15-60.
Hyeong Seol Book Company (2015). Materials of Civil Engineering, Korea, pp. 451-458.
Kim, D.B., Kim, M.G., Song, D.G. (2017). "An experimental study on the size and length effect of high strength concrete specimens." Journal of the Korean Society of Disaster Information, Vol. 14, No. 3, pp. 366-375.
Kim, D.B., Lee, I.D., Choi, J.H. (2019). "A study on the seismic performance improvement of mid and low -rise rc grid structures using steel slab hysteretic damper." Journal of the Korean Society of Disaster Information, Vol. 15, No. 3, pp. 129-134.

Information

Publisher :The Korean Society of Disaster Information
Publisher(Ko) :한국재난정보학회
Journal Title :Journal of the Society of Disaster Information
Journal Title(Ko) :한국재난정보학회논문집
Volume : 17
No :4
Pages :829-838
DOI :https://doi.org/10.15683/kosdi.2021.12.31.829

[1] Clough, R.W., Penzien, J. (2014). Dynamics of Structures. Pearson Higher Education, UK, pp. 15-60.

[2] Hyeong Seol Book Company (2015). Materials of Civil Engineering, Korea, pp. 451-458.

[3] Kim, D.B., Kim, M.G., Song, D.G. (2017). "An experimental study on the size and length effect of high strength concrete specimens." Journal of the Korean Society of Disaster Information, Vol. 14, No. 3, pp. 366-375.

[4] Kim, D.B., Lee, I.D., Choi, J.H. (2019). "A study on the seismic performance improvement of mid and low -rise rc grid structures using steel slab hysteretic damper." Journal of the Korean Society of Disaster Information, Vol. 15, No. 3, pp. 129-134.

Journal of the Society of Disaster Information ISSN:1976-2208(Print) 2671-5287(Online) 한국재난정보학회논문집

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