Analytical study of building height effects over Steel Plate Shear Wall
Peer reviewed, Journal article
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Date
2016Metadata
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Original version
International Journal of Engineering and Technology Innovation (IJETI) 2016, 6(4):255-263Abstract
In the latest three decades, the steel plate shear walls (SPSW) system has emer
ged as a promising lateral load
resisting system for both construction new buildings and retrofit of existing buildings. This system has acceptable
stiffness for control of structure displacement, ductile failure mechanism and high energy absorption. This
paper will
quantify the effect of increasing the height over analytical
behavior
of SPSW (height effect). Considering abundant
emergence of high
-
rise buildings all over the world in recent years and their need for strengthening, the importance of
the studi
es presented in this paper cannot be overemphasized for optimum height usage of SPSW lateral resisting
system. The study was performed through design of four models of dual system with special moment frames capable
of resisting at least 25% of prescribed s
eismic forces. In this article, structure buildings consisting of 5, 10, 15 and 20
stories have been modelled. Results consisting of story shear absorption, support reaction forces, lateral story
displacement and drift index have investigated for different
cases. Results show that SPSW absorbs more
shears
at the
lower stories than top stories. Furthermore, axial reaction of edge supports experience decreasing rate corresponding
to increase in the story numbers. Drift magnitude of steel plate shear wall with
the 5 stories has the maximum value at
the top story while the systems with the 10 and the 15 stories have maximum drift at lower stories
.