Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Numerical Simulation of Accelerations of the Upper Floors of a High-Rise Building Under Wind Influence
A new two-component method for calculating the dynamic response of high-rise buildings and structures to the action of wind is proposed, combining two numerical methods for solving two different physical problems. Computational fluid dynamics (CFD) tools are used to simulate wind flows and impacts on buildings and structures, after which finite element analysis (FEA) is carried out on the basis of superelement technology to determine the dynamic response of calculated objects to wind impacts. With this approach, it becomes possible to take into account the influence of real development, terrain, vortex excitation, the effect of disruption of vortices from neighboring buildings and structures, as well as the pulsation component of wind impact, which entails the need to take into account the inertial component of a high-rise building. To determine the characteristics of the impact of wind load on construction objects, physical modeling in wind tunnels is often used, however, it is known that this approach does not meet the full criteria of aerodynamic similarity, and to determine the dynamic response under wind influence, it is not able to fully meet the criteria of mechanical similarity. The methodology based on CFD and FEA means is devoid of such disadvantages. The proposed two-component numerical analysis was tested on the example of a high-rise building.
Numerical Simulation of Accelerations of the Upper Floors of a High-Rise Building Under Wind Influence
A new two-component method for calculating the dynamic response of high-rise buildings and structures to the action of wind is proposed, combining two numerical methods for solving two different physical problems. Computational fluid dynamics (CFD) tools are used to simulate wind flows and impacts on buildings and structures, after which finite element analysis (FEA) is carried out on the basis of superelement technology to determine the dynamic response of calculated objects to wind impacts. With this approach, it becomes possible to take into account the influence of real development, terrain, vortex excitation, the effect of disruption of vortices from neighboring buildings and structures, as well as the pulsation component of wind impact, which entails the need to take into account the inertial component of a high-rise building. To determine the characteristics of the impact of wind load on construction objects, physical modeling in wind tunnels is often used, however, it is known that this approach does not meet the full criteria of aerodynamic similarity, and to determine the dynamic response under wind influence, it is not able to fully meet the criteria of mechanical similarity. The methodology based on CFD and FEA means is devoid of such disadvantages. The proposed two-component numerical analysis was tested on the example of a high-rise building.
Numerical Simulation of Accelerations of the Upper Floors of a High-Rise Building Under Wind Influence
Lecture Notes in Civil Engineering
Akimov, Pavel (Herausgeber:in) / Vatin, Nikolai (Herausgeber:in) / Tusnin, Aleksandr (Herausgeber:in) / Doroshenko, Anna (Herausgeber:in) / Saiyan, Sergey (Autor:in) / Andreev, Vladimir (Autor:in) / Paushkin, Alexander (Autor:in)
03.09.2022
11 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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