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FINITE ELEMENT MODELLING TO STUDY SOIL STRUCTURE INTERACTION OF ASYMMETRICAL TALL BUILDINGAuthors: Pallavi Ravishankar,Dr D Neelima Satyam Conference: Workshop of TC207 during the 18th International Conference on Soil-Mechanics and Geotechnical Engineering Location Paris Date: 2013-09-02 Report no: IIIT/TR/2013/83 AbstractTall asymmetric buildings experience more risk during the earthquakes (Ming, 2010). This happens mainly due to attenuation of earthquake waves and local site response which get transferred to the structure and vice versa. This can be well explained by the Dynamic Soil Structure Interaction (DSSI) analysis. In this research paper 150 m tall asymmetrical building with two different foundation systems like raft and pile is considered for analysis and assuming homogeneous sandy soil strata results are studied for input of Bhuj ground motion (2001, M= 7.7). The response of structure in terms of SSI parameters under dynamic loading for a given foundation systems has been studied and compared to understand the soil structure interaction for the tall structures. It has been clearly identified that the displacement at top is more than that at bottom of the building and stresses are more at immediate soil layer under foundation than the below layers. Full paper: pdf Centre for Earthquake Engineering |
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