High-pier large-span T-structure bridge temperature field distribution analysis and temperature effect control method

A temperature effect and control method technology, applied in special data processing applications, geometric CAD, computer-aided design, etc., can solve the problems of bridge construction accuracy and construction quality, high pier and long-span T-structure bridge quality, Problems such as poor thermal conductivity of concrete

Pending Publication Date: 2021-01-01
CHINA RAILWAY SEVENTH GRP CO LTD +1
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the construction of high-pier long-span T-structure bridges, due to the poor thermal conductivity of concrete, under the influence of environmental factors such as solar radiation, atmospheric temperature, and wind speed, a nonlinear temperature distribution will occur inside the bridge structure, resulting in obv

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-pier large-span T-structure bridge temperature field distribution analysis and temperature effect control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0029] It should be noted that, in the description of the present invention, the terms "horizontal", "vertical", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, and It is not to indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, or operate in a particular orientation, and thus should not be construed as limiting the invention.

[0030] The design speed of the Chongqing-Guizhou high-speed rail...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a high-pier large-span T-structure bridge temperature field distribution analysis and temperature effect control method. The method comprises the following steps: establishinga finite element calculation temperature field distribution model, dividing sections of a main beam, a longitudinal beam, a span beam and a pier into thermodynamic plane units of a nonlinear temperature field, and setting boundary constraints; setting material parameters of concrete; setting a temperature gradient model and a loading load according to the material parameters of the concrete; according to a temperature gradient model and a loading load, applying a corresponding heat flux density boundary condition to the cross section for thermodynamic simulation analysis to obtain temperatureinformation of each thermodynamic plane unit; and performing temperature deformation coupling analysis on the high-pier large-span T-structure bridge according to the temperature information of the thermodynamic plane unit so as to calculate stress and displacement. The method can effectively guarantee high bridge construction precision and good construction quality.

Description

technical field [0001] The invention relates to the technical field of bridge engineering construction, more specifically, the invention relates to a temperature field distribution analysis and a temperature effect control method of a high-pier long-span T-structure bridge. Background technique [0002] With the advancement of my country's "Western Development" and "Transportation Power" strategies in the new era, the high-speed railway network has gradually expanded from plains and hills to complex and dangerous mountainous areas. The mountain high-speed railway is about 15,000 km, accounting for about 39.5%. Complex and dangerous mountainous areas have large terrain undulations, inconvenient transportation, narrow construction sites, complex geology, frequent earthquakes, dangerous rockfalls and debris flows are widely distributed, and high-speed railways have high requirements for safety, stability and smoothness. Here comes the great challenge. [0003] Due to the conso...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G06F30/13G06F30/23G06F119/08
CPCG06F30/13G06F30/23G06F2119/08
Inventor 张洪鹏易中平张文格袁义华谭云亚夏旺荣迪郭炜欣单云浩侯文崎熊启云
Owner CHINA RAILWAY SEVENTH GRP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap