Wind tunnel test device for simulating influence of wind on structure in mountain area

Abstract

The invention discloses a wind tunnel test device for simulating influence of wind on a structure in a mountain area, and relates to the field of structural wind engineering. The wind tunnel test device comprises a building simulation system, a slope simulation system and a pressure measuring tube; the building simulation system is composed of a building model and a building base plate; the slopesimulation system is composed of a front slope subsystem, a building platform, a back slope subsystem and a driving subsystem, the front and back sides of the building platform are in rotatable connection with the front slope subsystem and the back slope subsystem respectively, the building model is mounted on the building platform via the building base plate, and the driving subsystem adjusts andcontrols the height of the building platform as well as the gradient of the front slope subsystem and the back slope subsystem; and the pressure measuring tube penetrates the building base plate andis laid in the building model. The wind tunnel test device can be used to overcome the disadvantage that test device at present does no research on the wind pressure characteristic of the building inthe mountain area, simulate mountain areas of different gradient and height-to-width ratio by changing the gradient of different landform simulated testers, and simulate different distribution forms of the buildings in the mountain area by changing the number and heights of building models.

Description

technical field [0001] The invention belongs to the technical field of structural wind engineering, and in particular relates to a wind tunnel test device for simulating the influence of wind in mountainous areas on structures. Background technique [0002] my country has a vast territory, but due to a series of geological movements such as plate and shell movements, 2 / 3 of the land area is mountainous, especially in the southwest region, where buildings are often built in mountainous areas due to terrain constraints. In traditional wind tunnel tests, the terrain for building models is mostly simulated on plains, but existing research shows that buildings in mountainous areas will undergo complex changes due to the influence of terrain. Compared with plain buildings, mountain buildings are affected by the hillside, and the wind does not act on the buildings vertically, but at a certain angle. At the same time, due to the complex topography of mountainous buildings in our co...

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Problems solved by technology

At the same time, due to the complex topography of mountainous buildings in our country and the large range of slope changes, it is even more difficult to test mountainous buildings in wind tunnels.

Due to the above difficulties, it is still impossible to analyze the wind field characteristics of mountainous buildings in detail

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