Steel bridge deck pavement interlayer shear test simulation method based on discrete-continuous coupling

A technology of shear test and simulation method, which is applied in the fields of instrumentation, calculation, electrical and digital data processing, etc., which can solve the problems of deviation of measurement results and inability to reflect the properties of two materials at the same time.

Active Publication Date: 2019-11-01
HOHAI UNIV
View PDF3 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current methods for measuring the shear properties of the steel bridge deck pavement have limitations, and cannot reflect the pr

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
  • Steel bridge deck pavement interlayer shear test simulation method based on discrete-continuous coupling
  • Steel bridge deck pavement interlayer shear test simulation method based on discrete-continuous coupling
  • Steel bridge deck pavement interlayer shear test simulation method based on discrete-continuous coupling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0077] In order to make the purpose and technical solutions of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0078] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0079] Taking AC-13 asphalt mixture, asphalt pavement with a porosity of 5%, and a shear rate of 60mm / min as an example, the simulation method of the interlayer shear test of steel bridge deck pavement based on...

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 steel bridge deck pavement interlayer shear test simulation method based on discrete-continuous coupling. The method comprises the following steps: firstly, carrying out themodeling in PFC3D software, and forming a three-dimensional discrete element model of a steel bridge deck pavement asphalt pavement layer; secondly, conducting the modeling in FLAC3D software, and forming a steel bridge deck slab three-dimensional continuous model; thirdly, realizing data exchange between the PFC3D model and the FLAC3D model by utilizing the Socket I/O function of the PFC3D software and the FLAC3D software; and finally, loading and shearing the model, changing the mesoscopic parameters of the three-dimensional discrete element model of the asphalt pavement layer and the material parameters of the steel bridge deck, and analyzing the influence factors of the interlayer shearing of the steel bridge deck pavement. According to the method, the advantages of a discrete elementmethod and a finite element method are integrated. The mesoscopic characteristics of asphalt concrete serving as a multi-phase composite material and the characteristics of a steel bridge deck linearelastic material are considered. The simulation result better conforms to engineering practice. The obtained data can be used for guiding the design of a composite structure of a steel bridge deck pavement system.

Description

technical field [0001] The invention belongs to the intersecting field of road engineering and bridge engineering, and in particular relates to a simulation method for interlayer shear tests of steel bridge deck pavement based on discrete-continuous coupling. Background technique [0002] Steel bridge deck pavement is an important part of the steel bridge driving system, which has an extremely important impact on the durability, driving safety and comfort of the steel bridge, and is a crucial technology in the construction of steel bridges . The asphalt concrete pavement is closely connected with the steel bridge deck, bearing and deforming together. In the state of traffic, the interlayer of the pavement system bears the shearing action of the vehicle load. When the shear strength of the steel bridge deck pavement cannot meet the stress requirements, the pavement will be sheared and even delaminated. Therefore, it is very important to study the interlayer shear behavior ...

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): G06F17/50
Inventor 刘云王伟伟徐恭圣
Owner HOHAI UNIV
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