Parametric Assessment of the Effect of Shear Deformation in Concrete Shear Wall with and without Openings for Lateral Action using Simplified Hand Procedure
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Date
2018-10
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Addis Ababa University
Abstract
Shear wall, a continuous vertical member, is an important element in high-rise building,
which provides the lateral stability and resistance to lateral force. Lateral load resistance
capacity of shear wall is controlled by two parameters, the strength and the ductility; it is
better to have the shear strength somewhat greater than the compressional to prevent shear
failure, which is brittle, sudden and of serious consequence. Due to the architectural and
functionality reasons, openings are providing in this important structural part.
The main objective of this study is to investigate the effects of shear deformation on shear
wall with different type of openings and wall dimension for later action using simplified
hand procedure. To investigate the effect of shear deformation, parametric study presents
for shear wall deformation. A total of thirty-two cases of systematically random selected
input variables namely: height of shear wall (H), length wall (L), opening height (ho),
opening length (lo) and thickness for shear wall with window and door type of opening.
For solid shear wall (without opening) input variables are height of wall (H) length of wall
(L) and thickness (t). The systematically selection random variables is done using Latin
Hypercube Sampling method (LHS). Those random variables distribution follow normal
distribution. And then by taking the shear deformation of thirty-two cases of shear wall
with and without opening from simplified hand procedure, verified by illustrative example
and ANSYS, a statistical data analysis is performed using regression analysis in order to
identify the most influential input parameter on the shear wall deformation of shear wall.
Results of statistical data analysis demonstrates the significance of five input variables on
two cases, shear wall with and without opening and three input variables on solid shear
wall. Height of opening most influential parameter for shear wall with and without
opening. But for shear wall without opening thickness of wall is influential parameter for
the determination of shear deformation. On other hand, this paper provides some support
to identify which parameter increase and which parameter decrease shear deformation to
reduce brittle failure in of shear wall. This will enable to consider factor of safety for
the uncertain input parameters on shear deformation equations. It is helpful to construct
empirical equation using large set of data.
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Keywords
shear deformation, parametric study, simplified hand procedure, Latin Hypercube Sampling Method (LHS)