ANALYSIS AND DESIGN OF THE SKY SCRAPER STRUCTURE SUBJECTED TO WIND LOAD USING SOFTWARE ETABS 2015

Abstract

Wind is a phenomenon of great complexity because of the many flow situations arising from the interaction
of wind with structures. Wind is composed of a multitude of eddies of varying sizes and rotational characteristics carried
along in a general stream of air moving relative to the earth’s surface. Effect of wind on sky scraper structures shows
that if the structures are not well designed and constructed with and adequate strength it leads to the complete collapse
of the structures. Specific lateral loading due to wind load along with vertical gravity loads is important for finding the
behavior of the tall buildings. As the height of a building becomes taller, the amount of structural material required to
resist lateral loads increases drastically. The design of Sky scraper buildings essentially involves a conceptual design,
approximate analysis, preliminary design and optimization, to safely carry gravity and lateral loads. The design criteria
are strength, serviceability and human comfort. The aim of the structural engineer is to arrive at suitable structural
schemes, to satisfy these criteria. In the present study, the limit state method of analysis and design of Sky scrapers under
wind load as per IS codes of practice is described. Analysis and design the Sky scraper structure under the effect of wind
force by using ETABS-2015 that is the ultimate integrated software package for the structural analysis and design of
buildings. Indian standard code of practice IS-875 (Part 3: 1987) for wind guidelines and methodology are used to
analyzed and designed building.