Earthquake-Induced Collapse Simulation of a Super-Tall Mega-Braced Frame-Core Tube Bu
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Earthquake-Induced Collapse Simulation of a Super-Tall Mega-Braced Frame-Core Tube Bu
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Earthquake-Induced Collapse Simulation of a Super-Tall Mega-Braced Frame-Core Tube Building

Author: Xinzheng Lua  , Xiao Lua , Hong Guanb , Wankai Zhanga and Lieping Yea | Size: 1.8 MB | Format: PDF | Quality: Unspecified | pages: 37

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Abstract: Research on earthquake-induced collapse simulation has a great practical significance for super-tall 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 = 550 m) to be built in China in the high risk seismic zone with the maximum spectral acceleration of 0.9 g (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.


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