International Research Journal of Engineering and Technology (IRJET) Volume: 08 Issue: 10 | Oct 2021
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e-ISSN: 2395-0056 p-ISSN: 2395-0072
Comparative Study of High-Speed Wind Effect on T-Shape Tall Building in Absence and Presence of Shear Wall Mr. Ankur Srivastava1, Mr. Vinayak Mishra2 1M.
Tech Structural Engineering, Institute of Engineering and Technology, Lucknow, Uttar Pradesh, India Professor, Department of Civil Engineering, Institute of Engineering and Technology, Lucknow, Uttar Pradesh, India ---------------------------------------------------------------------***---------------------------------------------------------------------2Assistant
Abstract – As the globe progresses, urban development has led to construction of tall and super tall building across the world many high-density areas, where land is scarce and expensive, buildings of this sort are quite popular. Whenever land needs to be completely used, tall buildings are the solution. Due to the difficulty in resisting lateral pressures, such as wind forces, high-rise structures must be reinforced. Stabilizing a building in the face of multiple lateral forces is exceedingly challenging task. In this paper, by the means of comparative analysis the change in values of story drift and displacement in absence and presence of shear wall in the structure for the wind forces is shown using ETABS 19 software and IS 875 (Part 3)- 2015. Also with the help of graphical representation the entire study was done in global X and Y direction for particular stories of the building.
Geometric Irregularity. It's crucial for structural engineers to analyse loads operating on a structure rationally and effectively, including wind load during design.
There are a variety of T-type buildings that have plan anomalies. In recent years, high-rise constructions have become an essential element of the construction industry. Construction technological advances have led to the transformation of classic rectangular sky scrapers into unusually shaped towers. High-rise buildings face the same vertical pressures as conventional structures, but the lateral loads caused by wind and earthquakes have a higher influence. Due to their high cost, wind tunnel studies are no longer widely utilised to predict wind loads on buildings. A more cost-effective alternative to wind analysis has been developed and is widely used in the building industry. High-rise structures are affected by both longitudinal and transverse wind forces.
Keywords: Plan irregularity, shear wall, wind load, ETABS 19 1. INTRODUCTION Horizontal inertia forces are created within a structure whenever it is exposed to unstable excitation. These forces are believed to act through the structure's centre of mass (C.M). These forces are resisted by the structure's vertical elements, and the sum of these systems of forces acts through a location known as the centre of stiffness (C.S).When the centre of mass and the centre of stiffness do not coincide, eccentricities occur in the structures, causing torsion. Plan irregularity is further split into reentrant corners, floor slabs with excessive cutouts or openings, vertical offsets out of plane, non-parallel lateral force system, and so on, are all examples of plan irregularity. Vertical irregularities, on the other hand, are further classified into Stiffness Irregularity, Mass Irregularity, Vertical
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Followings are the few types of plan irregularities:
Fig. -a : Plan Irregularity Shear walls are structural panels that are capable of withstanding lateral pressures occurring on them Forces parallel to the wall's plane are known as lateral forces. Wind and other dynamic loadings are common examples. Side pressure might result in toppling of parallel structural panels, if perpendicular shear walls aren't holding them upright.
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