층간의 상관관계를 고려한 다중 층응답스펙트럼 해석

Floor Response Spectra Analysis Including Correlations of Multiple Support Motions

  • 발행 : 1993.12.01

초록

주구조물의 여러층에 지지점을 가지는 부구조물의 응답스펙트럼 해석방법에 대하여 연구하였다. 본 연구에서는 지지점 입력간의 상관관계를 고려할 수 있으며, 실무에서 부구조물의 내진설계에 쉽게 적용할 수 있는 다중 응답스펙트럼 해석방법을 제시하였다. 다중 응답스펙트럼과 지지점 입력간의 상관계수 스펙트럼은 추계론적 진동이론을 이용하여 설계지반응답스펙트럼으로부터 직접 유도하였다. 예제해석 결과 본 연구에서 제안한 방법은 지지점 입력간의 상관관계를 고려하지 않는 통상의 다중 응답스펙트럼 해석방법보다 정확한 지진응답을 예측함을 알 수 있었다.

This paper deals with the response spectra analysis method of the secondary structures including the correlation effect between the nonuniform multiple support excitations. Based on the random vibration theory, the multiple floor response spectra and the cross-correlation coefficient spectra of the floor motions are derived from the design ground response spectra. The example analysis results show that the proposed method yields more accurate results than those by the conventional multiple floor response spectra method without the correlation effects of the support motions. The present method may be easily employed in the seismic design of the secondary structures in engineering practice.

키워드

참고문헌

  1. Nucl. Eng. Des. v.81 Seismic Response of Multiply Connected MDOF Primary and Secondary Systems A.K.Gupta
  2. Earthq. Eng. Str. Dyn. v.14 Floor Response Spectrum method for Seismic analysis of Multiply Supported Secondary Systems A.Asfura;A.Der Diureghian
  3. Earthq. Eng. Str. Dyn v.15 Multiply Supported Secondary System Part Ⅰ: Response Spectrum Analysis R.A.Burdisso;M.P.Singh
  4. Earthq. Eng. Str. Dyn. v.15 Muitiply Supported Secondary System Part Ⅱ: Seismic Inputs M.P.Singh;R.A.Burdisso
  5. J. Eng. mech. Div. v.106 no.EM6 Structure Response to Stationary Excitation A. Der kiureghian
  6. Report No. R76-4 Simulated Earthquake motions Compatible with Prescribed Response Spectra D.A.Gasparini;E.H.Vanmarke
  7. ASCE Str. Congr. Floor Response Spectra Including Structure-Equipment Interaction Effects C.B.Yun;E.J.Son
  8. Reg. Guide 1.60. Rev. v.1 Design Response Spectra for Seismic Design of Nuclear Power Plants USNRC