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.
KIM et al. (Thu,) studied this question.