This study aims at predicting the vertical macro-level responses of high-rise buildings excited by near-fault
impulse-type vertical component of earthquake waves by proposed simplified wave propagation method.
High-rise buildings are simplified as a continuous solid model with lumped masses and springs, having variable
mechanical parameters. The Fast Fourier Transform (FFT) filtering process is applied in the proposed wave
propagation analysis in which time delay is taken into account. In addition to the proposed wave propagation
method, conventional vibration differential equations and the wave propagation method which is based on
difference filter have also been established and analyzed. Comparisons of the computational results from the
three methods indicate that wave-propagation-based methods are more competent for predicting structural
responses of structures under impulse-type vertical component of earthquake waves which have larger amplitude
and shorter duration. It is also shown that less energy can be transferred into the upper part of structures due to
significant vertically irregularities in stiffness and mass along structural height. Some preliminary conceptual
design ideas from the study for designing high-rise buildings have been advised.
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