Investigation of the influence of wind flow over the grandstand with a canopy

Abstract

The article deals with the investigation of the influence of wind flow over the grandstand with a canopy. Temporary stands with canopies are widely used for various entertainment events. The wind load is dominant for the structures of the stands with the canopy. The SP “Loads and impacts” presents the aerodynamic coefficients only for an open canopy. In the case of stands the nature of wind flow around the structure changes and the wind effect on the canopy structure changes accordingly. In this regard, it is necessary to clarify the wind load on structures of this type. The prototype object is a grandstand with a canopy. The study is performed in the ANSYS CFX software package using variations in wind flow speeds, canopy tilt, and the presence or absence of walls and other obstacles. During the study it was found that the grandstand and obstacles affect the wind pressure on the canopy. Also, quantitative comparison and analysis of the results show that peak pressures have a maximum deviation of the values of aerodynamic coefficients of 43 %.