Wind load values are based on the height of the structure, in which design wind pressures with respect to height about site or ground level can be obtained. Values are also dependent on the shape of the building, in which shape factors can be obtained. Wind forces are derived with the following equation obtained from the Code of Practice on Wind Effects in Hong Kong 2004. Wind load cases that govern critical load combinations include tall and slender structures and roof slabs with long spans.

​Source: Code of Practice on Wind Effects in Hong Kong 2004

​Source: Code of Practice on Wind Effects in Hong Kong 2004