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Parametric Study of Dual Structural System Using NLTH Analysis


Ismaeel Mohammed , Khaja Bandanawaz College of engineering; S.M. HASHMI, HOD Civil Department, Khaja Bandanawaz College of Engineering


NLTH, OMRF, Non-Linear Time History Analysis


The dual structural system consisting of ordinary moment resisting frame (OMRF) and concrete shear wall has better seismic performance due to improved lateral stiffness and strength. It is obvious that a well-designed system of shear walls (non-planar c shape or core type) in a building frame improves its seismic performance, but in this paper, study is carried out on planar shear walls. For the research purpose the time history function (BHUJ) is applied in the direction orthogonal to the planar shear wall towards which the seismic performance is inferior compared to its application along the shear wall direction. An in-elastic (nonlinear) analysis is carried out for the evaluation of seismic performance. The configurations of symmetric RC moment resisting framed building structure with five different arrangements of planar shear walls are considered for evaluation using nonlinear time history analysis, so as to arrive at the best suited pattern of shear wall in the structural framing system. A comparison of structural behavior in terms of strength, stiffness and damping characteristics is done by studying the parameters like time period, base shear, overturning moments, storey displacements and drifts by arranging shear walls at five different patterns in the structural framing system.

Other Details

Paper ID: IJSRDV2I9473
Published in: Volume : 2, Issue : 9
Publication Date: 01/12/2014
Page(s): 673-679

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