IIIT Hyderabad Publications |
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To study the interface effect in pile supported asymmetrical building using DSSI analysisAuthors: Pallavi Ravishankar,Neelima Satyam Conference: 4th International Conference on Civil Engineering and Building Materials (CEBM2014) Location Hong Kong Date: 2014-11-23 Report no: IIIT/TR/2014/88 AbstractIn order to get the exact response of the structure under the earthquake loading, it is necessary to include the interaction effect in the analysis. This can be achieved by introducing an interfaces element be-tween two target surfaces. It is a very challenging task to include the interaction effect in the analysis as it is very complex and governed by the many factors including impedance, wave propagation, resonance, damping, nonlinear behaviour of the interface elements, soil nonlinearity etc [10]. In the present study, the 3-story asymmetrical building supported by pile foundation is considered for the analysis. Dynamic analysis is carried out in time domain by applying a Bhuj (2001,0.31g) ground motion and the response of the superstructure is predicted in the form of displacements. The elastic half space is considered as supporting local soil which in-cluded the horizontal stratification with four soil layers. The parametric study has been carried out for a differ-ent size of interfaces element between soil-pile and soil-soil and the response is compared with the rigid inter-face condition to understand the influence of the interface on the SSI response. The response with the rigid interface condition is found to less as compared to the interface conditions and the response varies with the size and strength of the interface element. Full paper: pdf Centre for Earthquake Engineering |
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