What question did this study set out to answer?

Investigate the characteristics of wind-induced responses in high-rise buildings using two analysis methods.

April 3, 2026

Characteristics of Wind-Induced Responses by Various Analysis Methods

Key Points

Investigate the characteristics of wind-induced responses in high-rise buildings using two analysis methods.
Used spectral modal method to assess wind responses with a focus on the first linear-like mode shape.
Implemented time history analysis using the Newmark β method.
Measured peak accelerations and maximum displacements at various model heights.
Peak accelerations and maximum displacements from both methods closely aligned, with time history yielding slightly greater values.
Spectral modal method results remained within the range of 10-minute samples from time history analysis.
Negligible forces were found on the shared space at the building's base during response analysis.

Abstract

Using spectral modal method and time history analysis, characteristics of wind-induced responses of high-rise apartment building were investigated. For the spectral modal method, the first linear-like mode shape was considered, and for the time history analysis, Newmark β method was implemented. Peak accelerations and maximum displacements at model height from both methods were reasonably coincide well, showing a little larger values from the time history analysis. The results from the spectral modal method were within the range of the results of each 10-minute sample in time history analysis, and it was found that forces applied on the shared space on the bottom of the building can be negligible in response analysis.

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