Modular pneumatic drag reduction device and a high-rise building based on bionics

Abstract

The invention discloses a modular pneumatic drag reduction device and a high-rise building based on bionics, The drag reduction device comprises a grid structure and blades attached to the grid structure, wherein the grid structure is a rigid material, the blades are all flexible materials, the blades are movably installed in each grid of the grid structure, and the size of the blades is adapted to each grid size. Each blade can be deformed and vibrated independently, the aerodynamic shape can be adaptively changed under the action of different winds, the wind resistance can be reduced under various conditions, the blade vibration can be allowed at the same time, the energy dissipation can be reduced, and the wind-induced vibration of the high-rise building can be further reduced.

Description

technical field [0001] The invention relates to the technical field of buildings, in particular to a modular pneumatic drag reduction device applied to buildings. Background technique [0002] In the past hundred years, the world record of building height has been broken repeatedly. Apart from the use function, high-rise buildings may also become symbols of industrial civilization and landmarks of modern cities. Therefore, more and more high-rise buildings are designed and constructed. The static and dynamic response of the building structure caused by the wind also needs to be paid attention to and controlled hard. [0003] The natural wind in the atmospheric boundary layer has a pulsating wind component. The pulsating wind can be considered to be formed by the random combination of vortices of different scales. Since the natural frequency of the building structure is generally high, far exceeding the frequency of the large-scale vortex, the large-scale vortex will not The...

AI Technical Summary

Problems solved by technology

[0015] Aiming at the deficiencies of the prior art, the present invention provides a bionics-based aerodynamic drag reduction device applied to high-rise buildings and a high-rise building using the device, which solves the problem of aerodynamic drag reduction for improving flutter stability in existing high-rise buildings. The problem of poor universality and poor technical effect of the structure can significantly improve the overall flutter stability of high-rise buildings, improve the life of the building and reduce the risk

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