ISO 4354:2009 PDF Download

ISO 4354:2009 is a standard that provides guidelines for calculating wind loads on structures. It outlines the methods for determining the characteristic values of wind loads to be used in the design of various structures, including buildings, towers, chimneys, bridges, and their components. The standard is intended to be used in conjunction with other international standards related to wind loads.

This standard covers different types of storms, including synoptic winds, thunderstorms, and tropical cyclones (hurricanes and typhoons). It offers methods for converting between peak and mean wind speed methodologies. ISO 4354:2009 also considers the shape of the structure and its directionality effects when determining wind loading. It provides both analytical methods based on design pressures or orthogonal forces and moments, as well as wind tunnel or computational methods for structures with complex shapes and directionality effects.