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

Construction method of uniaxial stress-strain constitutive model of special grouting material for sleeve

A constitutive model and uniaxial stress technology, which is applied in the fields of architecture and engineering, can solve problems such as inconsistency, inconsistency in concrete material properties, and no further research, and achieve the effect of accurate elastic modulus and avoiding errors

Active Publication Date: 2022-06-17
FUJIAN UNIV OF TECH +1
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] ① When the concrete constitutive model is used to replace the constitutive model of the special grouting material for the sleeve, this method is only for the compression constitutive model of the special grouting material, and there is no further research on its tensile constitutive model, and the sleeve The special grouting material is essentially a cement-based mortar material without coarse aggregate, which does not match the material properties of concrete, resulting in a discrepancy between the results of the finite element simulation and the actual situation

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
  • Construction method of uniaxial stress-strain constitutive model of special grouting material for sleeve
  • Construction method of uniaxial stress-strain constitutive model of special grouting material for sleeve
  • Construction method of uniaxial stress-strain constitutive model of special grouting material for sleeve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] In order to make the features and advantages of this patent more obvious and easy to understand, the following specific examples are given, and the accompanying drawings are described in detail as follows:

[0044] 1 grouting material raw materials

[0045] The raw material of the grouting material in this embodiment adopts the special high-strength grouting material for sleeves produced by Beijing Star Jianmao Technology Development Co., Ltd., and is prepared according to the water consumption required by the product specification. Its basic properties are shown in Table 1.

[0046] Table 1 Grouting material properties

[0047]

[0048] 2 Experimental Design

[0049] The experimental design of this example uses 24 cube test blocks with the size of 70.7mm×70.7mm×70.7mm, 6 cube test blocks with the size of 100mm×100mm×100mm, and 6 prisms with the size of 100mm×100mm×300mm test block. The specific information is shown in Table 2. The test piece was demolded 1 day ...

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 present invention proposes a method for constructing a uniaxial stress-strain constitutive model of special grouting materials for sleeves, which includes the following steps: Step S1: Obtain the relationship between the peak strain and compressive strength of the grouting materials according to the compressive test and the splitting tensile test ; Step S2: According to the static compression elastic modulus test method, determine the relationship between the compression elastic modulus and the strength of the sleeve special grouting material; Step S3: Determine the uniaxial compression of the sleeve special grouting material according to the compression test Stress-strain constitutive model; Step S4: Determine the uniaxial tensile stress-strain constitutive model of the special grout for the sleeve according to the data obtained from the split tensile test. The constitutive relation curve of the special grouting material for the sleeve can be constructed effectively, accurately and quantitatively, and can be used for the construction of the constitutive model of the special grouting material for the sleeve in the prefabricated building.

Description

technical field [0001] The invention relates to the fields of architecture and engineering, in particular to a method for constructing a uniaxial stress-strain constitutive model based on a special grouting material for sleeves. Background technique [0002] Terminology Explanation: [0003] Peak stress: The maximum stress required for the specimen to reach failure. [0004] Peak strain: The peak strain is the strain corresponding to the peak stress. [0005] Modulus of Elasticity: The stress in a unidirectional stress state divided by the strain in that direction. [0006] The stress-strain relationship of the special grouting material for sleeve is the reflection of the basic mechanical properties of the grouting material, and it is also the basis for the experimental research and numerical simulation of the connection of the steel sleeve. However, the constitutive relation for the special grouting material for sleeves has not yet matured, and there is no suitable exist...

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 Patents(China)
IPC IPC(8): G06F30/20G06Q50/08G06F119/14G06F111/10
CPCG06F30/20G06Q50/08G06F2119/14G06F2111/10
Inventor 吴琛麻胜兰李道松黄成峰丁冬林钟诚张杰林国良杨超郑志煌项洪肖晓菲范思炜
Owner FUJIAN UNIV OF TECH
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