Abstract
In this study, under the effects of site and topography, the seismic response of a 10-storey moment-frame building was investigated using 3D finite element numerical simulation and validated by laboratory shaking table test. Fixed-base analysis (FB) as well as soil–structural interaction (SSI) and topographic–soil–structural interaction (TSSI) have been used in this research. The FB approach performance was investigated using bedrock recording and the documented reports due to the responses of site and topography. Nonlinear behavioral models were applied for the building members and soil. The results have revealed that the seismic response of buildings demonstrate a meaningful correlation with slope topography. According to the outcomes, the maximum accelerations in spaces adjacent to crest and toe of the slope were recorded as 4.5 and 2.8 times to the input motion. In addition, under the TSSI method in the building adjacent to the slope crest, the lateral displacement and base shear force were 1.8 and 2 times compared to SSI and 7 and 2 times compared to FB, respectively. Comparing various analytical approaches, it was found that taking into account the direct effect of slope topography on the building’s seismic response (TSSI), realistic outcomes are reported compared to other methods.
Published Version
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