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Calculation of wind loads on buildings

Nova-Engineering specialists have built a Krasnoyarsk residential area model to determine moment loads on a hundred-meter-high building in Krasnoyarsk residential area under different wind loads (wind direction, wind speed) using numerical methods.

Also, based on data on the pressure distribution at the foot of the building, performed the calculation of pedestrian comfort areas and some other structural calculations (wind rose, airflow movement, temperature regime of the area at different seasons, and environmental safety)

The work was carried out jointly with the Center for Mathematical Modeling of JSC VNIIZhT Railway Research Institute.

 Wind loads are one of the main types of loads and impacts on buildings and structures, the correct and comprehensive accounting of which determines the reliability and safety of both the load-bearing system and light facade and stained-glass structures widely used in modern construction.

Mathematical modeling of wind loads and impacts (CFD-modeling – Computer Fluid Dynamics, CFD – computational fluid dynamics) is based on the reproduction of wind loads during wind flow movement. Parameters of the wind flow change first by flowing around the terrain and surrounding buildings, and then by flowing around the building itself, taking into account its configuration, there is an interference of airflows formed by different parts of one building or closely spaced buildings. Thus, mathematical modeling of wind loads is a universal approach that allows equally reliable determination of wind loads for any shape of a building and its architectural elements, for any configuration of the surrounding buildings, for any terrain.

The need for wind load modeling is usually related to the following project characteristics:

  • high responsibility according to regulatory documents;
  • non-standard architectural form;
  • complex building construction or the tightness of the surrounding development (aerodynamic interaction of nearby buildings);
  • use of light facade and stained-glass structures, the power elements of which work locally affected by the distribution of wind load on the facade;
  • use of economic load-bearing coating systems with their weight comparable to the wind suction;
  • high-altitude and long-span structures, where wind loads and dynamic wind impacts can be decisive.
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