Wind induced responses of Taipei 101 tower based on large eddy simulation

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Journal of Vibration and Shock ›› 2019, Vol. 38 ›› Issue (15) : 172-181.

LU Chunling1, 2, 3, LI Zhongyang1, LI Qiusheng4

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Abstract

A new turbulent pulsating flow generator was applied to simulate turbulent flow boundary conditions of wind field around Taipei 101 tower.A new large eddy simulation (LES) subgrid model was adopted to conduct full scale numerical wind tunnel simulation for Taipei 101 Tower, and acquire data of wind flow field around the tower and wind load time history ones exerted on it.The 3-D finite element model of Taipei 101 Tower was established, and its modal analysis and transient dynamic analysis under wind load time history obtained with LES were performed.The wind-induced responses of the tower under wind load were computed.The computed results are compared with those of wind tunnel tests and the actual measured ones on site.The results showed that the computed wind-induced response results agree better with the actual measured ones and those of wind tunnel tests; the proposed numerical simulation approach can provide a reference for anti-wind design of super-tall buildings.

Key words

super-tall building / numerical simulation / large eddy simulation / wind induced response / equivalent static wind load

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LU Chunling1, 2, 3, LI Zhongyang1, LI Qiusheng4. Wind induced responses of Taipei 101 tower based on large eddy simulation[J]. Journal of Vibration and Shock, 2019, 38(15): 172-181

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