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

A reinforced concrete structural member evaluation method based on an equivalent single-degree-of-freedom method

A technology for reinforced concrete and reinforced concrete beams, which is applied in the field of reinforced concrete structural member evaluation by the effective single-degree-of-freedom method, and can solve the problems of accuracy of damage analysis, failure of structural shear damage, failure of analysis and calculation of explosive load conditions, etc.

Pending Publication Date: 2019-05-10
INST OF DEFENSE ENG ACADEMY OF MILITARY SCI PLA CHINA
View PDF3 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are two main problems in the application of the equivalent single-degree-of-freedom method analysis method for structural damage under explosive loads: (1) the analysis and calculation of explosive loads with non-uniform loading cannot be performed; (2) the structural shear cannot be calculated. These problems restrict the accuracy of the equivalent single-degree-of-freedom method algorithm for rapid damage analysis of reinforced concrete structures

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
  • A reinforced concrete structural member evaluation method based on an equivalent single-degree-of-freedom method
  • A reinforced concrete structural member evaluation method based on an equivalent single-degree-of-freedom method
  • A reinforced concrete structural member evaluation method based on an equivalent single-degree-of-freedom method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0059] The present invention is described in conjunction with accompanying drawing and specific embodiment:

[0060] An evaluation method for reinforced concrete structural members based on an equivalent single-degree-of-freedom method, the specific steps of the evaluation method are as follows:

[0061] 3) 1) The maximum allowable ductility rate and support rotation angle of the selected component type are determined by the protection design level; the damage level of bending failure is determined by the angle of the support rotation angle θ, when θ is 2°, 5° and 12° The corresponding damage levels are mild damage, moderate damage and severe damage; the damage level of shear failure is judged by the size of shear strain γ, when γ is 0.5%, 1% and 1.5%, the corresponding damage levels for minor injuries, moderate injuries and severe injuries;

[0062] (2) Calculate the equivalent blast load and establish the construction resistance function R(x);

[0063] Assuming that the re...

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 belongs to the technical field of weapon damage assessment, and provides a reinforced concrete structural member assessment method based on an equivalent single-degree-of-freedom method.The reinforced concrete structural member evaluation method based on the equivalent single-degree-of-freedom method comprises the steps that determining the maximum allowable ductility and the support corner of a selected member type according to the protection design grade; calculating an equivalent explosion load and establishing a resistance function R (x); wherein the equivalent uniform distribution peak explosion pressure is unrelated to the length-width ratio a of the reinforced concrete slab and is only related to the peak pressure of four feature points; comparing the calculated maximum ductility and the support corner with the pre-maximum allowable ductility and the support corner; if the calculated response satisfies an allowable response, the component is secure, otherwise thecomponent reaches a corresponding damage level. According to the method, the damage effect of the target can be quickly calculated by combining a relatively accurate equivalent single-degree-of-freedom analysis method.

Description

technical field [0001] The invention belongs to the technical field of weapon damage assessment, and in particular relates to an assessment method for reinforced concrete structural components based on an equivalent single-degree-of-freedom method. Background technique [0002] At present, there are two main problems in the application of the equivalent single-degree-of-freedom method for structural damage under blast loads: (1) the analysis and calculation of blast loads with non-uniform distribution cannot be performed; (2) the structural shear cannot be calculated. These problems restrict the accuracy of the equivalent single-degree-of-freedom method algorithm for rapid damage analysis of reinforced concrete structures. Contents of the invention [0003] In order to solve the above technical problems, the object of the present invention is to propose a method for evaluating reinforced concrete structural members based on the equivalent single degree of freedom method. ...

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
Inventor 汪维吴飚刘瑞朝周松柏任新见杨建超赵强周朝阳黄家蓉
Owner INST OF DEFENSE ENG ACADEMY OF MILITARY SCI PLA CHINA
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