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Temperature deformation prediction model building method and prediction method for super high-rise structure

A technology for building methods and predictive models, applied in geometric CAD, design optimization/simulation, calculation, etc., can solve problems such as the inability to predict temperature deformation of super high-rise structures, achieve data structure simplification, accurately predict temperature deformation, and ensure accuracy Effect

Pending Publication Date: 2021-02-19
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects and improvement needs of the existing technology, the present invention provides a method for establishing a temperature deformation prediction model of a super high-rise structure and a prediction method, the purpose of which is to effectively solve the problem that the existing technology cannot predict the temperature deformation of a super high-rise structure technical problem

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  • Temperature deformation prediction model building method and prediction method for super high-rise structure
  • Temperature deformation prediction model building method and prediction method for super high-rise structure
  • Temperature deformation prediction model building method and prediction method for super high-rise structure

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Effect test

Embodiment 1

[0050] A method for establishing a temperature deformation prediction model for super high-rise structures, such as figure 1 shown, including:

[0051] According to the temperature-strain formula, the vertical strain and deformation D′=[D x ,D y ,D z ,θ x ,θ y ] T The expression of each element in is transformed into temperature-induced deformation, which is denoted as D″ as the temperature-induced temperature deformation of the core tube in the super high-rise structure; where, D x 、D y 、D z , θ x and θ y Respectively represent the vertical strain and the horizontal deformation in the x direction, the horizontal deformation in the y direction, the vertical deformation, the inclination angle in the x direction and the inclination angle in the y direction in the vertical strain and deformation D′;

[0052] On the basis of the temperature deformation D″, the additional deformation β·T caused by the temperature of the columns around the core tube is added as the tempera...

Embodiment 2

[0101] A temperature deformation prediction method for super high-rise structures, such as figure 2 shown, including:

[0102] Select the section N at the height of the non-floor of the super high-rise structure;

[0103] Calculate the x-direction gradient temperature, y-direction gradient temperature and surface average temperature of the core tube in the section N, and the surface average temperature of each column in the section N to obtain the temperature field data

[0104] The temperature field data Substituting the temperature deformation regression model obtained by the temperature deformation prediction model establishment method of the super high-rise structure provided by the present invention, calculating the x-direction horizontal deformation, y-direction horizontal deformation, vertical deformation, x-direction inclination angle and y-direction deformation of the super-high-rise structure caused by temperature The inclination angle is used to complete the t...

Embodiment 3

[0106] A computer readable storage medium including a stored computer program;

[0107] When the computer program is executed by the processor, the device where the computer-readable storage medium is located is controlled to execute the method for establishing a temperature deformation prediction model of a super high-rise structure provided in Embodiment 1 above, and / or the temperature deformation prediction of a super high-rise structure provided in Embodiment 2 above method.

[0108] The beneficial effects obtained by the present invention will be further explained in combination with a practical application scenario below.

[0109] Taking the 335-meter-high Wuhan Yangtze River Shipping Center as an object, the bird's-eye view and plan view of the super high-rise structure are as follows image 3 As shown in (a) and (b), the structural form of the super high-rise building is a typical concrete frame-core tube system. Its typical floor plan is a square with a plan size of ...

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Abstract

The invention discloses a temperature deformation prediction model building method and prediction method for a super high-rise structure, which belong to the technical field of building structure analysis and calculation, and comprise the following steps: converting expressions of all elements in vertical strain and deformation D'of the super high-rise structure into deformation caused by temperature, wherein the temperature deformation caused by the temperature of the core tube in the super high-rise structure is denoted as D ''; on the basis of D '', adding additional deformation beta * T caused by the temperature of columns around the core tube to serve as temperature deformation of the super high-rise structure to obtain an expression of temperature deformation and a temperature field,and the linear relation between the temperature field and the temperature deformation obtained through transformation is D = beta * T; and solving a temperature deformation coefficient matrix beta inD = beta * T by utilizing a partial least squares regression method, and substituting the temperature deformation coefficient matrix beta into the expression to obtain a temperature deformation regression model of the super high-rise structure. According to the invention, the theoretical linear model between the temperature field and the temperature deformation of the super high-rise structure isestablished from the mechanism, and the linear model is solved by adopting the partial least squares regression method, so that the temperature deformation of the super high-rise structure can be accurately predicted.

Description

technical field [0001] The invention belongs to the technical field of building structure analysis and calculation, and more specifically relates to a method for establishing a temperature deformation prediction model of a super high-rise structure and a prediction method. Background technique [0002] The Council of Tall Buildings and Urban Habitat (CTBUH) defines buildings with a height of more than 300 meters as super high-rise buildings. For super high-rise building structures, temperature deformation will increase significantly with the increase of structure height, and excessive lateral deformation will If the structure deviates from the center line, it is easy to cause installation errors during the construction process, and even cause engineering quality problems or safety accidents in severe cases. Therefore, it is of great engineering significance to accurately predict the temperature deformation of super high-rise structures. [0003] Measurement methods for temp...

Claims

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Application Information

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IPC IPC(8): G06F30/13G06F30/23G06F119/08
CPCG06F30/13G06F30/23G06F2119/08
Inventor 高飞陈潘翁顺夏勇朱宏平
Owner HUAZHONG UNIV OF SCI & TECH
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