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High-rise building torsional wind effect control method based on Ekkermann-like spiral curved plate

A control method and technology for high-rise buildings, which are applied in the directions of buildings, building structures, special data processing applications, etc., can solve the problems that pneumatic measures are no longer applicable, ineffective, and have large differences, so as to improve wind comfort and safety. , reducing control costs, and the effect of strong universality

Active Publication Date: 2021-02-26
周蕾
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Problems solved by technology

[0004] However, under the action of the torsional wind profile, the flow field at different heights of the building is quite different from that of the normal wind profile, and the aerodynamic force generated is mainly torsion, so the traditional aerodynamic measures for the normal boundary layer wind profile are no longer applicable or Ineffective

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  • High-rise building torsional wind effect control method based on Ekkermann-like spiral curved plate
  • High-rise building torsional wind effect control method based on Ekkermann-like spiral curved plate
  • High-rise building torsional wind effect control method based on Ekkermann-like spiral curved plate

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specific Embodiment approach 1

[0029] Specific embodiment one: a kind of high-rise building torsion wind effect control method based on class Ekman spiral curved panel, described method steps are as follows:

[0030] Step 1: Determination of the width of the curved panel;

[0031] According to the local wind speed measurement data, the dominant wind direction, wind speed and torsional wind angle γ along the height direction are statistically obtained, and the angle between the bottom of the curved panel and the building surface is assumed to be β (such as figure 2 shown), when the height z=0, γ=β,

[0032] The dominant wind direction and the dimensionless shedding frequency of the building jointly determine the width L1 of the curved panel,

[0033] L1=B / 10*(1+st)*cos(β),

[0034] Among them: B represents the building width;

[0035] st represents the Storohal number of the building, which is taken as 0.1;

[0036] * represents the multiplication sign ×;

[0037] Since the torsional windage angle γ gr...

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Abstract

The invention discloses a high-rise building torsional wind effect control method based on an Ekkerman-like spiral curved plate and belongs to the technical field of civil engineering. The method comprises the following steps that the width of a curved plate is determined; the position of a building bottom curved plate is determined; one end of the curved plate is placed at the sharp corner of thewindward side of the building, the other end of the curved plate rotates by an angle beta with the width L1 of the curved plate as the radius, and the position of the curved plate at the bottom of the building is determined; curved plates are arranged at the second corner, the third corner and the fourth corner respectively, the curved plate arranged at the second corner clockwise rotates by 90 degrees relative to the curved plate arranged at the sharp corner, and the curved plate arranged at the third corner clockwise rotates by 180 degrees relative to the curved plate arranged at the sharpcorner; the curved plate arranged at the fourth corner rotates clockwise by 270 degrees relative to the curved plate arranged at the sharp corner; and 3, a curve of the edge of the curved plate is determined. The method is used for controlling the torsional wind effect of the high-rise building.

Description

technical field [0001] The invention belongs to the technical field of civil engineering, and in particular relates to a method for controlling the torsional wind effect of a high-rise building based on a similar Ekman spiral curved panel. Background technique [0002] Mountains and hills change the wind environment not only by accelerating the wind speed, but also by changing the wind direction. As a result, wind profiles near terrain of this class exhibit height-dependent wind direction, often referred to as (terrain-driven) distorted wind profiles. Tall buildings in this type of terrain (such as commercial areas or residential areas) cannot be ignored by the torsional wind profile. For tall buildings with slender, flexible or eccentric shapes, the torsional wind profile forms an asymmetrical shape on the outer wall of the building. wind pressure, and creates a non-uniform flow field along the height around the building, thus changing the aerodynamic characteristics of th...

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Application Information

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IPC IPC(8): G06F30/13E04B1/92
CPCE04B1/92G06F30/13
Inventor 周蕾谢锦添刘军乐邓锷
Owner 周蕾