Effects of Soil Structure Interaction (SSI) on the design of Reinforced Concrete Buildings
| Author(s) | : | Muhammad Arfan, Fayyaz-ur-Rahman |
| Institution | : | Graduate Student, Civil Engineering Department, University of Engineering & Technology, Peshawar, Pakistan. |
| Published In | : | Vol. 8, Issue 2 — February 2021 |
| Page No. | : | 1-5 |
| Domain | : | Engineering |
| Type | : | Research Paper |
| ISSN (Online) | : | 2348-4470 |
| ISSN (Print) | : | 2348-6406 |
Normally reinforced concrete buildings are analyzed and designed as fixed or hinged supports which areassigned to columns, ignoring foundation flexibility and its interaction with soil underneath and around it. To investigatethe response of buildings under seismic loads the fixed base condition is considered to provide a conservative estimationthat’s why the SSI analysis is generally ignored. The fixed base assumption adopted by the structural engineers is notalways cost effective and conservative, especially in the case of soft soils supporting rigid buildings. The design outputssuch as fundamental time period, Inter-story drifts, story lateral displacements and beam & column design is comparedfor flexible and fix based supports. The fundamental time period, inter-story drift, lateral displacement are not that muchsubstantial but the lateral displacement must be considered for pounding analysis of adjacent buildings. The localdifferences in flexure reinforcement of columns in fixed base and flexible base is significant
Muhammad Arfan, Fayyaz-ur-Rahman, “Effects of Soil Structure Interaction (SSI) on the design of Reinforced Concrete Buildings”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 8, Issue 2, pp. 1-5, February 2021.
