FARKLI DEPREM DOĞRULTULARININ ORTOGONAL BETONARME YAPI ÜZERİNDEKİ ETKİSİ
THE EFFECT OF VERTICAL EARTHQUAKE COMPONENT ON STRUCTURAL BEHAVIOR IN MULTI-STORY STRUCTURES

Summary/Abstract: In recent earthquakes, there has been a significant field evidence that the collapse of existing structures is due to the effect of the vertical component of the seismic ground motions. Such field evidence has been not supported by comprehensive analytical and experimental testing yet. This study focuses on the preliminary analysis of the seismic response of reinforced concrete elements exposed to horizontal and vertical ground motions. In this research, the vertical earthquake effect was investigated on two reinforced concrete buildings with 3 stories and 7 stories. In this analysis, seven earthquake recordings were used to cover a wide verticalhorizontal spectral ratio. The selected structural parameters are nodal displacements, axial forces and shear forces. Using the SeismoStruct program, first the earthquake effect examined on two dimensions (x,y) and then three dimensional (x,y,z) and the results were controled comparatively. The results show that although the structure does not significantly affect the displacement and shear forces response, the multicomponent effect of earthquakes has a significant effect on the forces of building columns.

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