Abstract
Structures are widely considered to be designed on assuming fixed base condition which is usually limited to hard stratum. The recent evolution lead to initiation on soil structure interaction (SSI) study which is tremendously growing interest in development of huge structures to build on soft soils. Piled raft system is mostly adopted as a foundation system for such highrise building. In this paper, A 12 storey RC structure building is modelled with connected piled raft system and disconnected piled raft system with no structural connection between them where a provision of cushioned layer with granular soil is introduced. By equivalent static method both connected piled raft system and disconnected piled raft system are studied and compared by varied configuration spacing between piles, and cushion thickness are examined by finite element method using Plaxis 3D software. Results showed that the displacement in the structure, inter storey drift, pile displacement on connected and disconnected pile raft system. DPR has performed better when cushion thickness is increased.
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Ashok kumar, H., Antony, V.J. (2021). Seismic Behaviour of RC Structure Under Disconnected Piled Raft System. In: Sitharam, T., Pallepati, R.R., Kolathayar, S. (eds) Seismic Design and Performance. Lecture Notes in Civil Engineering, vol 120. Springer, Singapore. https://doi.org/10.1007/978-981-33-4005-3_31
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DOI: https://doi.org/10.1007/978-981-33-4005-3_31
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