Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Free Vibrations of Thick Plates with Concentrated Masses on In-homogeneous Pasternak Foundation

비균질 Pasternak지반 위에 놓인 집중질량을 갖는 후판의 자유진동

  • 이용수 (원광대학교 건축학부) ;
  • 이병구 (원광대학교 토목환경도시공학부) ;
  • 김일중 (전북과학대학교 건축ㆍ토목계열) ;
  • 이태은 (원광대학교 대학원 토목환경공학과)
  • Published : 2003.04.01
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Abstract

Recently, as high-rise buildings increase steeply, sub-structures of them are often supported on in-homogeneous foundation. And there are many machines in sub-structures of buildings, and slabs of sub-structures are affected by vibration which they make. This paper deals with vibration of plates with concentrated masses on in-homogeneous foundation. Machines on plates are considered as concentrated masses. In-homogeneous foundation is considered as assigning $k_{w1}$ and $k_{w2}$ to Winkler foundation parameters of central region and side region of plate respectively, and foundation is idealized to use Pasternak foundation model which considered both of Winkler foundation parameter and shear foundation parameter. In this paper, applying Winkler foundation parameters which $k_{w1}$and $k_{w2}$ are 10, $10^2$, $10^3$ and shear foundation parameter which are 10, 20 respectively, first natural frequencies of thick plates with concentrated masses on in-homogeneous foundations are calculated.

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References

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