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Analysis for foundation moments in space frame-shear wall-nonlinear soil system
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  • Journal title : Earthquakes and Structures
  • Volume 10, Issue 6,  2016, pp.1369-1389
  • Publisher : Techno-Press
  • DOI : 10.12989/eas.2016.10.6.1369
 Title & Authors
Analysis for foundation moments in space frame-shear wall-nonlinear soil system
Jain, D.K.; Hora, M.S.;
 Abstract
The soil-structure interaction effect significantly influences the design of multi-storey buildings subjected to lateral seismic loads. The shear walls are often provided in such buildings to increase the lateral stability to resist seismic loads. In the present work, the nonlinear soil-structure analysis of a G+5 storey RC shear wall building frame having isolated column footings and founded on deformable soil is presented. The nonlinear seismic FE analysis is carried out using ANSYS software for the building with and without shear walls to investigate the effect of inclusion of shear wall on the moments in the footings due to differential settlement of soil mass. The frame is considered to behave in linear elastic manner, whereas, soil mass to behave in nonlinear manner. It is found that the interaction effect causes significant variation in the moments in the footings. The comparison of non-interaction and interaction analyses suggests that the presence of shear wall causes significant decrease in bending moments in most of the footings but the interaction effect causes restoration of the bending moments to a great extent. A comparison is made between linear and nonlinear analyses to draw some important conclusions.
 Keywords
soil-structure interaction;ANSYS;space frame;shear wall;nonlinear analysis;foundation moments;isolated footings;seismic forces;
 Language
English
 Cited by
 References
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