Terrain pixelated simulation device for building wind tunnel test

Abstract

The invention, which belongs to the technical field of buildings, relates to a terrain pixelated simulation device for a building wind tunnel test. The device comprises a tunnel body. A simulated building and a simulated variable obstacle are arranged in the tunnel body. The simulated variable obstacle arranged at one side, being close to an air inlet, of the simulated building includes a housingwith an enclosed outer wall; the housing is formed by assembling of a plurality of cover plates; the every two adjacent cover plates are connected in a sealed mode through a sealing structure; a firstdriving device for controlling each top cover plate to independently perform driving conversion and a second driving device for controlling the top cover plate to independently move up and down are arranged below each top cover plate; the second driving device drives the top cover plates and the first driving device to move up and down at the same time; and the plurality of top cover plates and asealed cover plate carry out transformation jointly to realize transformation of the external structure of the whole housing. Therefore, the simulation device can simulate and study the influence ofdifferent obstacles on the wind pressure and wind load borne by the low-rise building to guide the construction of a house.

Description

technical field [0001] The invention belongs to the technical field of building tests, and in particular relates to a terrain pixelation simulation device for building wind tunnel tests. Background technique [0002] Due to the unstable wind pressure and disordered wind field in coastal areas, and strong winds such as typhoons often occur, in the field of building test technology, houses with actual wind load measurements are usually built to truly simulate the impact of low buildings in coastal areas under the action of strong winds. The situation of wind load, wind pressure and airflow field, and synchronously measure and collect relevant measured data for aerodynamic characteristic analysis. The measured data obtained through on-site measurement can reflect the real wind load characteristics, and is considered to be the most direct and reliable research method for studying the wind effect of structures. [0003] Terrain obstacles have a relatively clear impact on the win...

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Problems solved by technology

[0003] Terrain obstacles have a relatively clear impact on the wind disturbance characteristics of low buildings under strong winds. However, in the prior art, there is a lack of simulation devices that can simulate the impact of different obstacles on the wind pressure and wind load on low buildings. ; In the existing test research, some actual houses for research are usually set up on the spot for testing. Due to the limitations of the local environment, the shape of terrain obstacles is fixed and generally cannot be changed. However, due to different regions, the terrain is often varied. Therefore, a single field test cannot reflect the wind disturbance characteristics of low buildings in various complex terrains in coastal areas.

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