Earthquake-induced collapse simulation of a super-tall mega-braced frame-core tube building

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Author(s)
Lu, Xinzheng
Lu, Xiao
Guan, Hong
Zhang, Wankai
Ye, Lieping
Griffith University Author(s)
Year published
2013
Metadata
Show full item recordAbstract
Research on earthquake-induced collapse simulation has a great practical significance for supertall buildings. Although mega-braced frame-core tube buildings are one of the common high-rise structural systems in high seismic intensity regions, the failure mode and collapse mechanism of such a building under earthquake events are rarely studied. This paper thus aims to investigate the collapse behavior of a super-tall mega-braced frame-core tube building (H=550m) to be built in China in the high risk seismic zone with the maximum spectral acceleration of 0.9g (g represents the gravity acceleration). A finite element (FE) ...
View more >Research on earthquake-induced collapse simulation has a great practical significance for supertall buildings. Although mega-braced frame-core tube buildings are one of the common high-rise structural systems in high seismic intensity regions, the failure mode and collapse mechanism of such a building under earthquake events are rarely studied. This paper thus aims to investigate the collapse behavior of a super-tall mega-braced frame-core tube building (H=550m) to be built in China in the high risk seismic zone with the maximum spectral acceleration of 0.9g (g represents the gravity acceleration). A finite element (FE) model of this building is constructed based on the fiber-beam and multi-layer shell models. The dynamic characteristics of the building are analyzed and the earthquake-induced collapse simulation is performed. Finally, the failure mode and mechanism of earthquake-induced collapse are discussed in some detail. This study will serve as a reference for the collapse-resistance design of super-tall buildings of similar type.
View less >
View more >Research on earthquake-induced collapse simulation has a great practical significance for supertall buildings. Although mega-braced frame-core tube buildings are one of the common high-rise structural systems in high seismic intensity regions, the failure mode and collapse mechanism of such a building under earthquake events are rarely studied. This paper thus aims to investigate the collapse behavior of a super-tall mega-braced frame-core tube building (H=550m) to be built in China in the high risk seismic zone with the maximum spectral acceleration of 0.9g (g represents the gravity acceleration). A finite element (FE) model of this building is constructed based on the fiber-beam and multi-layer shell models. The dynamic characteristics of the building are analyzed and the earthquake-induced collapse simulation is performed. Finally, the failure mode and mechanism of earthquake-induced collapse are discussed in some detail. This study will serve as a reference for the collapse-resistance design of super-tall buildings of similar type.
View less >
Journal Title
Journal of Constructional Steel Research
Volume
82
Copyright Statement
© 2013 Elsevier B.V. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
Subject
Civil engineering
Structural engineering
Building