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A platform for research: civil engineering, architecture and urbanism
Response of Multistoried Building Considering Soil-Structural Interaction Under Lateral Loading
https://orcid.org/https://orcid.org/0000-0002-2842-1961
Conventionally soil-structure interaction (SSI) is neglected while designing any structure assuming it is situated on hard strata. For light structures on relative stiff soil like low rise buildings, neglecting the SSI can be affordable. But analyzing a multistoried building on relative soft soil without considering SSI may be relatively dangerous from the safety and stability point of view. In 1995 Kobe earthquake the seismic behavior of a structure was highly influenced by the response of the foundation and the ground [1]. By keeping these criteria in mind, it is essential to analyze any structure considering the effect of SSI. Total 12 different models of symmetric multistoried building, out of which, three models are simulated considering fixed at the base. Other models are simulated for three different soil properties and for three different heights of the buildings. The Influence of soil-structure interaction on the structure is investigated for 5-storey, 10-storey and 15-storey buildings by pushover analysis using the finite element program SAP2000. Displacement based pushover analysis is carried out and the structures are subjected to lateral displacement of 800 mm on the top node of the model. The capacity of the structures for varying building heights and soil types are obtained and thus the analysis helps us to get a better understanding of the interaction between the structure and the soil medium. The influence of the soil-structure interaction on the analysis of the structure is reflected in a decrease of the base shear values. It is observed that the capacity of the building with lesser height and hard soil type is more compared to other models.
Response of Multistoried Building Considering Soil-Structural Interaction Under Lateral Loading
https://orcid.org/https://orcid.org/0000-0002-2842-1961
Conventionally soil-structure interaction (SSI) is neglected while designing any structure assuming it is situated on hard strata. For light structures on relative stiff soil like low rise buildings, neglecting the SSI can be affordable. But analyzing a multistoried building on relative soft soil without considering SSI may be relatively dangerous from the safety and stability point of view. In 1995 Kobe earthquake the seismic behavior of a structure was highly influenced by the response of the foundation and the ground [1]. By keeping these criteria in mind, it is essential to analyze any structure considering the effect of SSI. Total 12 different models of symmetric multistoried building, out of which, three models are simulated considering fixed at the base. Other models are simulated for three different soil properties and for three different heights of the buildings. The Influence of soil-structure interaction on the structure is investigated for 5-storey, 10-storey and 15-storey buildings by pushover analysis using the finite element program SAP2000. Displacement based pushover analysis is carried out and the structures are subjected to lateral displacement of 800 mm on the top node of the model. The capacity of the structures for varying building heights and soil types are obtained and thus the analysis helps us to get a better understanding of the interaction between the structure and the soil medium. The influence of the soil-structure interaction on the analysis of the structure is reflected in a decrease of the base shear values. It is observed that the capacity of the building with lesser height and hard soil type is more compared to other models.
Response of Multistoried Building Considering Soil-Structural Interaction Under Lateral Loading
https://orcid.org/https://orcid.org/0000-0002-2842-1961
Conventionally soil-structure interaction (SSI) is neglected while designing any structure assuming it is situated on hard strata. For light structures on relative stiff soil like low rise buildings, neglecting the SSI can be affordable. But analyzing a multistoried building on relative soft soil without considering SSI may be relatively dangerous from the safety and stability point of view. In 1995 Kobe earthquake the seismic behavior of a structure was highly influenced by the response of the foundation and the ground [1]. By keeping these criteria in mind, it is essential to analyze any structure considering the effect of SSI. Total 12 different models of symmetric multistoried building, out of which, three models are simulated considering fixed at the base. Other models are simulated for three different soil properties and for three different heights of the buildings. The Influence of soil-structure interaction on the structure is investigated for 5-storey, 10-storey and 15-storey buildings by pushover analysis using the finite element program SAP2000. Displacement based pushover analysis is carried out and the structures are subjected to lateral displacement of 800 mm on the top node of the model. The capacity of the structures for varying building heights and soil types are obtained and thus the analysis helps us to get a better understanding of the interaction between the structure and the soil medium. The influence of the soil-structure interaction on the analysis of the structure is reflected in a decrease of the base shear values. It is observed that the capacity of the building with lesser height and hard soil type is more compared to other models.
Response of Multistoried Building Considering Soil-Structural Interaction Under Lateral Loading
Lecture Notes in Civil Engineering
Sitharam, T.G. (editor) / Pallepati, Raghuveer Rao (editor) / Kolathayar, Sreevalsa (editor) / Kaushik, Snehal (author) / Saikia, Tabassum Nahar (author) / Syed, Syed Maroof Hassan (author) / Jafri, Suhail (author) / Baruah, Banashree (author)
2021-03-27
12 pages
Article/Chapter (Book)
Electronic Resource
English
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