A dynamic suppression device for strong wind suction on the roof of a low building

Abstract

The invention relates to a strong wind attraction force dynamic inhibition device of a roof of a short building. The inhibition device is used for reducing strong wind load induced by vortex of the roof of a short building. The inhibition device comprises a streamline type spoiler plate assembly, a wind speed device, a servo controller, a driving motor and an external power supply. The streamline type spoiler assembly is fixedly connected with the roof via a spoiler plate support and is in transmission connection with the spoiler plate support. The wind speed device is used for measuring wind speed in real time. The servo controller is connected with the wind speed device and used for sending out control instructions according to real-time wind speed. The driving motor is connected with the servo controller and the spoiler plate support and changes the included angle between streamline type spoiler plate assembly and the horizontal plane according to the control instructions, thereby achieving strong wind attraction force dynamic inhibition. The external power supply is connected with the wind speed device and the driving the motor so as to provide electricity. Compared with the prior art, the inhibition device is advantaged by effective reduction of strong wind load induced by vortex of the roof of a short building, simple structure, remarkable effects, stable performance and reduction of construction cost.

Description

Technical field [0001] The invention relates to a method for suppressing wind load on a low-rise building roof, in particular to a dynamic suppression device for strong wind suction on a low-rise building roof. Background technique [0002] Low-rise buildings generally refer to buildings of 7 or less floors and less than 24 meters in height, including residential buildings, factories, commercial and public buildings, etc. Due to their own morphological characteristics, low buildings are mostly located at the bottom of the atmospheric boundary layer. In this area, the wind speed changes greatly and the turbulence is high. Wind loads have become one of the main control loads in the design of this type of building structure. Many disaster investigations have shown that the destruction of low-rise buildings usually starts near the windward angle and front edge of the roof. Although these flow separation areas occupy a small area of ​​the roof, the strong wind suction acting on them i...

AI Technical Summary

Problems solved by technology

This is because in the above-mentioned areas, the vortex effect is particularly significant. Once the wind suction induced by the vortex exceeds the bearing capacity of the roof itself, the windward angle and the windward front edge will be damaged first, and then the roof will be lifted, and finally the building will fail as a whole.

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