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Efficient Dynamic Analysis of High-rise Buildings Having Belt Walls Connected by a Sky-Bridge  

Lee, Dong-Guen (성균관대학교 건축공학과)
Kim, Hyun-Su (선문대학교 건축학부)
Yang, Ah-Ram (삼성엔지니어링(주) 토목건축팀)
Ko, Hyun (성균관대학교 건축공학과)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.22, no.3, 2009 , pp. 231-242 More about this Journal
Abstract
In the design of a sky-bridge, repetitive boundary nonlinear time history analyses are required to accurately predict dynamic behaviors of the connected buildings because the connection systems of a sky-bridge usually have high nonlinearity. If a conventional finite element model for entire high-rise buildings is used for repetitive boundary nonlinear time history analyses, computational efforts could be significant. In this study, an equivalent cantilever model considering the belt-wall effect has been proposed for an efficient dynamic analysis and a performance evaluation of vibration control of high-rise buildings connected by a sky-bridge. To verify the accuracy and efficiency of the proposed equivalent model, boundary nonlinear time history analyses of 49- and 42-story example buildings connected by a sky-bridge have been performed for wind excitation. Based on the analytical results, it has been verified that the proposed equivalent model can provide accurate dynamic responses of building structures connected by a sky-bridge with significantly reduced computational efforts.
Keywords
sky-bridge; belt-wall; vibration control; equivalent model; high-rise buildings; time history analysis;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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