Review of studies on the effects of various wind load parameters on tall buildings with irregular and diversified geometries

Abstract

Tall buildings, like other engineering buildings, have become increasingly important in era of rapid urbanization since they provide a lot of vertical space in a small plan area and also symbolize a country's achievement.  However, the building's exposure to natural forces, such as wind, rises with its height.  The passage of wind may cause tall buildings to sway in both the along and across wind directions. Modern high-rises may nevertheless experience unacceptably high levels of vibration during a cyclone, despite being built to resist lateral drift. Oscillations caused by strong winds may be particularly dangerous for tall structures. Even if the oscillations do not pose a hazard to the buildings, they might cause discomfort to the residents. As a result, serviceability necessitates a precise assessment of building motion. There are number of different ways to figure out how tall buildings react to wind loads.  The ASCE 2010 (USA), AS/NZ 2011 (Australia and New Zealand), AIJ 2004 (Japan), CNS 2012 (China), NBCC 2010 (Canada), Eurocode 2010 (Europe), IS 875 (Part 3)-1987, ISO 2009, and IWC 2012 (India) all used a similar theoretical framework to compare and contrast the effects of wind loads on tall buildings.  For regularly shaped structures, the IS 875 (Part 3)-1987 analytical technique is provided, which is based on the Gust Factor Method (GFM). However, it is only applicable to regular shaped buildings. For irregular shaped buildings, a prototype measurement in a wind tunnel offers accurate reaction and behavior under high wind speeds. In order to get above the limitations of analytical formulation, it is important to conduct a comprehensive examination of the impact of wind load on tall building structures. This paper's primary objective is to examine the results of physical (wind tunnel test) and software (Computational Fluid Dynamics, or CFD) analyses of the influence of wind load on high-rise structures with irregular and different geometries.