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Effect of slope angle variation on the structures resting on hilly region considering soil–structure interaction

Authors
  • Ghosh, Rahul1
  • Debbarma, Rama1
  • 1 National Institute of Technology Agartala, Department of Civil Engineering, Agartala, Tripura, 799046, India , Agartala (India)
Type
Published Article
Journal
International Journal of Advanced Structural Engineering
Publisher
Springer Berlin Heidelberg
Publication Date
Feb 12, 2019
Volume
11
Issue
1
Pages
67–77
Identifiers
DOI: 10.1007/s40091-019-0219-3
Source
Springer Nature
Keywords
License
Green

Abstract

Structures resting on sloping ground are highly vulnerable to earthquakes due to irregularities in plan and elevation. Structures are often analysed under earthquake loadings, without considering the effect of soil–structure interaction (SSI). This practice is not advisable from practical point of view. In this present study, an attempt has been made to study the effect of slope angle variation for the structures resting on sloping ground, considering the base of the structures fixed as well as flexible (SSI). The analysis is performed in equivalent static force method (ESFM), response spectrum method (RSM), time history method (THM), nonlinear static method (NLSM) and nonlinear time history method (NLTHM). Results expose the criticality associated with increment of slope angle, with and without SSI consideration. Importance of considering SSI in seismic analysis is also revealed.

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