Spatially varying ground motion effects on seismic response of adjacent structures considering soil-structure interaction


Autoria(s): Alam, Md Iftekharul; Kim, Dookie
Data(s)

01/01/2014

Resumo

Spatial variation of seismic ground motions is caused by incoherence effect, wave passage, and local site conditions. This study focuses on the effects of spatial variation of earthquake ground motion on the responses of adjacent reinforced concrete (RC) frame structures. The adjacent buildings are modeled considering soil-structure interaction (SSI) so that the buildings can be interacted with each other under uniform and non-uniform ground motions. Three different site classes are used to model the soil layers of SSI system. Based on fast Fourier transformation (FFT), spatially correlated non-uniform ground motions are generated compatible with known power spectrum density function (PSDF) at different locations. Numerical analyses are carried out to investigate the displacement responses and the absolute maximum base shear forces of adjacent structures subjected to spatially varying ground motions. The results are presented in terms of related parameters affecting the structural response using three different types of soil site classes. The responses of adjacent structures have changed remarkably due to spatial variation of ground motions. The effect can be significant on rock site rather than clay site.

Formato

application/pdf

Identificador

http://eprints.qut.edu.au/78888/

Publicador

Multi-Science Publishing Co. Ltd.

Relação

http://eprints.qut.edu.au/78888/4/78888p.pdf

DOI:10.1260/1369-4332.17.1.131

Alam, Md Iftekharul & Kim, Dookie (2014) Spatially varying ground motion effects on seismic response of adjacent structures considering soil-structure interaction. Advances in Structural Engineering, 17(1), pp. 131-142.

Direitos

Copyright 2014 Multi-Science Publishing

Fonte

School of Civil Engineering & Built Environment; Science & Engineering Faculty

Palavras-Chave #090504 Earthquake Engineering #090506 Structural Engineering #adjacent buildings, spatial ground motions, seismic response, soil-structure interaction, power spectrum density function
Tipo

Journal Article