Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Analysis method for lateral limit support stiffness of curve beam

A technology of stiffness analysis and lateral limitation, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as complex stress on the main beam

Active Publication Date: 2018-10-09
CHINA COMM NORTH ROAD & BRIDGE
View PDF7 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the effects of preload, concrete shrinkage and creep, and temperature, the curved bridge will inevitably produce tangential displacement and radial displacement. More complex

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
  • Analysis method for lateral limit support stiffness of curve beam
  • Analysis method for lateral limit support stiffness of curve beam
  • Analysis method for lateral limit support stiffness of curve beam

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] Embodiments of the method for analyzing the stiffness of the lateral limit support of a curved beam according to the present invention will be described below with reference to the accompanying drawings. Those skilled in the art would recognize that the described embodiments can be modified in various ways or combinations thereof without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims. Also, in this specification, the drawings are not drawn to scale, and like reference numerals denote like parts.

[0034] The external factors that cause the lateral displacement of the curved beam are mainly temperature difference, vehicle centrifugal force and impact force. The invention adopts the finite element method to comprehensively load the temperature load and the centrifugal force load of the vehicle, and analyzes the force of the lateral limit support, ...

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 an analysis method for lateral limit support stiffness of a curve beam. The method comprises the following steps of building a three-dimensional model of the curve beam by adopting a solid 90 unit in an ANSYS system; setting temperature field parameters including a heat transfer coefficient, specific heat, a concrete surface and air convection coefficient, concrete densityand a temperature gradient; performing grid division; according to different boundaries, applying temperature loads changed with time; solving a temperature field; by adopting a sequential coupling method, converting a thermodynamic analysis unit Solid 90 into a structural analysis unit Solid 95, and loading temperature field solving data as the temperature load together with a vehicle centrifugalforce; performing structural mechanic solving; and adjusting compressive stiffness of lateral limit support, repeating the step for adjusting the compressive stiffness of the lateral support and performing calculation, and comparing calculation results to obtain reasonable lateral limit support stiffness. The structural analysis is performed in combination with the centrifugal force based on thetemperature field analysis; temperature calculation data and centrifugal force data jointly serve as loads and are loaded for calculation; and the actual condition of the curve beam is better met.

Description

technical field [0001] The invention relates to the field of building construction, in particular to a method for analyzing the stiffness of a lateral limit support of a curved beam. Background technique [0002] Due to the needs of route design, a large number of curved bridges have appeared in high-grade highways. The structural characteristics of curved bridges will cause beam cracking, bridge pier cracking, and beam cracking under loads such as temperature changes, concrete shrinkage and creep, and automobile centrifugal force. Lateral displacement of the body, that is, the hazards such as support voiding. Due to its inherent characteristics, the curved beam will not only produce displacement along the axis direction but also radial displacement under various loads. Such as beam body disease due to the large torque at the end of the curve section, rollover due to the accumulation of adverse temperature effects, and overpass rollover due to multiple heavy vehicles drivin...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/13G06F30/23
Inventor 王超生杨伟威朱文博
Owner CHINA COMM NORTH ROAD & BRIDGE
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com