Abstract
The plane frame structure of three-span, six-story reinforced concrete structure, is adopted to study whether wave passage effect should be considered in the seismic responses of frame structures or not. The influence factors of seismic wave's frequency and wave passage effect on the structure are studied. The earthquake responses of the frame structure to wave passage excitations and uniform excitations are computed respectively for the class III site seismic wave by using Midas Gen software. The results of column shear forces obtained from the wave passage excitations are compared with those of the uniform excitations. And the frequencies of seismic waves are analyzed. Numerical results showed that wave passage effect caused the shear force of the first-story column facing the seismic wave to increase remarkably for the plane frame structures. For the seismic waves with wave passage effect, the main peaks of frequency amplitude spectrum of seismic wave arise in low frequency domain.
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