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Seismic Response of Reinforced Concrete Buildings Considering Soil Structure Interaction
The response of any structure under the action of seismic activity is dependent on three aspects: the structure, the foundation, and the underlying soil. The Soil-Structure-Interaction ascertains that the soil is flexible. The SSI is a function of the stiffness of structure relative to stiffness of the soil. The compliance nature of soil permits various degrees of freedom, which not only increases the damping properties but also decreases the predicted damage of structure, thus opening up the possibilities of a more economical structure. Although Indian codes do account for Soil-Structure Interaction, it does not encompass every bullet detail regarding SSI. The purpose of this study is to analyze the seismic response of low-rise and mid-rise RC buildings, with and without Soil-Structure Interaction using Response Spectrum Method. Isolated foundation is considered, and stiff, medium and soft clay is considered for comparison. The soil property variables such as shear modulus and Poisson’s ratio were considered for calculating spring stiffness. For stiff structures resting on soft soil, SSI can be very beneficial as it increases the natural time period of the building. The damping property of the structure is also enhanced. On the other hand, for stiff structure on stiff soil, SSI has very little impact.
Seismic Response of Reinforced Concrete Buildings Considering Soil Structure Interaction
The response of any structure under the action of seismic activity is dependent on three aspects: the structure, the foundation, and the underlying soil. The Soil-Structure-Interaction ascertains that the soil is flexible. The SSI is a function of the stiffness of structure relative to stiffness of the soil. The compliance nature of soil permits various degrees of freedom, which not only increases the damping properties but also decreases the predicted damage of structure, thus opening up the possibilities of a more economical structure. Although Indian codes do account for Soil-Structure Interaction, it does not encompass every bullet detail regarding SSI. The purpose of this study is to analyze the seismic response of low-rise and mid-rise RC buildings, with and without Soil-Structure Interaction using Response Spectrum Method. Isolated foundation is considered, and stiff, medium and soft clay is considered for comparison. The soil property variables such as shear modulus and Poisson’s ratio were considered for calculating spring stiffness. For stiff structures resting on soft soil, SSI can be very beneficial as it increases the natural time period of the building. The damping property of the structure is also enhanced. On the other hand, for stiff structure on stiff soil, SSI has very little impact.
Seismic Response of Reinforced Concrete Buildings Considering Soil Structure Interaction
Structural Integrity
Fonseca de Oliveira Correia, José António (editor) / Choudhury, Satyabrata (editor) / Dutta, Subhrajit (editor) / Kalsi, Ishita (author) / Debbarma, Rama (author)
International Conference on Advances in Structural Mechanics and Applications ; 2021 ; Silchar, India
Advances in Structural Mechanics and Applications ; Chapter: 31 ; 383-392
Structural Integrity ; 26
2022-07-15
10 pages
Article/Chapter (Book)
Electronic Resource
English
Influence of Soil-Pile-Structure Interaction on Seismic Response of Reinforced Concrete Buildings
| Springer Verlag | 2023
| British Library Conference Proceedings | 2016