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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2015.1
- 수록면
- 85 - 92 (8page)
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초록· 키워드
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Response spectra of a building are made with a SDOF system taking into account a first mode shape, even though higher modes may affect on the dynamic responses of a high-rise building. A soft soil layer under a building also affects on the responses of a building. In this study, seismic responses of a MDOF system were investigated to examine the effects of higher modes on the response of a tall building by comparing them with those of a SDOF system including the kinematic interaction effect. Study was performed using a pseudo 3D finite element program with seven bedrock earthquake records downloaded from the PEER database. Effects of higher modes on the seismic responses of a tall building were investigated for base shear force and base moment of a MDOF system including story shear forces and story moments. Study results show that higher modes of a MDOF system contribute to a reduction of base shear force up to 1/4-1/5 of KBC and base moment. The effect of higher modes is more significant on the base shear force than on the base moment. Maximum story shear force and moment occurred at the top part of a building rather than at a base in the cases of tall buildings differently from short buildings, and higher modes of a tall building affected on the base forces making them almost constant at the base. A soft soil layer also affects some on the base shear force of a high-rise building independently on the soft soil type, but a soft soil effect is prominent on the base moment.
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참고문헌 (15)
참고문헌 신청
/ / PEER Strong Earthquake Data Base
Architectural Institute of Korea / 2009 / Korean Building Code (KBC2009) : 122 ~ 164
Gazetas G / 1987 / Horizontal Stiffness of Arbitrarily Shaped Embedded Foundations / Journal of Geotechnical Engineering 113 (5) : 440 ~ 457
International Building Code Council / 2009 / International Building Code (IBC2009); : 340 ~ 366
Jun DH / 1994 / Establishing Appropriate Seismic Force Distribution on Multistory Building Structures Subjected to Seismic Excitations / Journal of the Architectural Institut
Architectural Institute of Korea / 2009 / Korean Building Code (KBC2009) : 122 ~ 164
Gazetas G / 1987 / Horizontal Stiffness of Arbitrarily Shaped Embedded Foundations / Journal of Geotechnical Engineering 113 (5) : 440 ~ 457
International Building Code Council / 2009 / International Building Code (IBC2009); : 340 ~ 366
Jun DH / 1994 / Establishing Appropriate Seismic Force Distribution on Multistory Building Structures Subjected to Seismic Excitations / Journal of the Architectural Institut
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