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논문 기본 정보

자료유형
학술저널
저자정보
Tremblay, R. (Structural Engineering Research Group, Department of Civil, Geological and Mining Engineering, Polytechnique Montreal) Chen, L. (Structural Engineering Research Group, Department of Civil, Geological and Mining Engineering, Polytechnique Montreal) Tirca, L. (Building, Civil and Environmental Engineering, Concordia University)
저널정보
한국초고층도시건축학회 International journal of high-rise buildings International journal of high-rise buildings 제3권 제1호
발행연도
2014.1
수록면
21 - 33 (13page)

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The tied braced frame (TBF) system was developed to achieve uniform seismic inelastic demand along the height of multi-storey eccentrically braced steel frames. A modular tied braced frame (M-TBF) configuration has been recently proposed to reach the same objective while reducing the large axial force demand imposed on the vertical tie members connecting the link beams together in TBFs. M-TBFs may however experience variations in storey drifts at levels where the ties have been removed to form the modules. In this paper, the possibility of reducing the discontinuity in displacement response of a 16-storey M-TBF structure by introducing energy dissipating (ED) devices between the modules is examined. Two M-TBF configurations are investigated: an M-TBF with two 8-storey modules and an M-TBF with four 4-storey modules. Three types of ED devices are studied: friction dampers (FD), buckling restrained bracing (BRB) members and self-centering energy dissipative (SCED) members. The ED devices were sized such that no additional force demand was imposed on the discontinuous tie members. Nonlinear response history analysis showed that all three ED systems can be used to reduce discontinuities in storey drifts of M-TBFs. The BRB members experienced the smallest peak deformations whereas minimum residual deformations were obtained with the SCED devices.

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