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An Uncertain Numerical Cloud Theoretical Bridge Technology Status Assessment Method

A technology of state of technology and cloud theory, applied in bridges, bridge construction, bridge maintenance, etc., can solve the cognition that does not conform to the habit of thinking about the classification of bridge technical state, does not fully reflect the evaluation value of bridge technical state and the uncertainty of evaluation results And other issues

Active Publication Date: 2018-06-19
GUANGXI TRANSPORTATION SCI & TECH GRP CO LTD +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cloud map of bridge technical state classification based on the scoring limits of current norms does not fully reflect the uncertainty of bridge technical state evaluation indicators, scoring values ​​and evaluation results, and does not conform to people's thinking habits and understanding of bridge technical state classification

Method used

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  • An Uncertain Numerical Cloud Theoretical Bridge Technology Status Assessment Method
  • An Uncertain Numerical Cloud Theoretical Bridge Technology Status Assessment Method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The steps of the cloud theory bridge technical state evaluation method for calculating the uncertain value of "Highway Bridge Technical State Evaluation Standard" are as follows:

[0025] a. Scoring values ​​use the "Technical State Evaluation Standards for Highway Bridges" (JTG / T H21-2001) to classify the technical state of bridges, and the value ranges for evaluating the technical state of bridges are divided into 5 categories: , the value range of the first category score is [95,100], the value range of the second category score is [80,95), the value range of the third category score is [60,80), the value range of the fourth category score is The value range is [40, 60), and the value range of the fifth category score is [0, 40), namely , , , , , ;

[0026] b. Using the bridge technical state classification limit value in step a, calculate the expected value of each technical state scoring grade limit , , ;

[0027] c. Calculate the entropy of e...

Embodiment 2

[0032] The steps of the cloud theory bridge technical state assessment method for calculating the uncertain value of "Urban Bridge Maintenance Technical Specifications" are as follows:

[0033] a. Use the score value to classify the technical status of bridges using the "Technical Specifications for Urban Bridge Maintenance" (CJJ 99-2003, J281-2003). , the value range of class A scores is [90,100], the value range of class B scores is [80,90), the value range of class C scores is [66,80), and the value range of class D scores The value range is [50, 66), and the value range of the class E score is [0, 50), that is

[0034] b. Using the bridge technical state classification limit value in step a, calculate the expected value of each technical state scoring grade limit , , , , , ;

[0035] c. Calculate the entropy of each technical status rating level , , , , , ;

[0036] d. Calculate the hyper-entropy of each technical status rating level , Ta...

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Abstract

The invention provides a cloud theory bridge technology state assessment method of an uncertain numerical value. By combining a Gaussian cloud model, the invention provides a method for dividing a scoring limit of a current standard bridge technology state; a cloud model parameter expectation Ex, entropy En and hyper-entropy He of the cloud model are calculated and brought in a Gaussian cloud model formula; obtained various types of grade bridge assessment cloud diagrams have certain superposition and crossing; uncertainty and fuzziness in a bridge technology state assessment process are sufficiently represented, thinking habits of people are met and the understanding of people on bridge technology state grade division is realized.

Description

technical field [0001] The invention belongs to the field of technical status evaluation of bridges, in particular to a method for evaluating technical status of bridges based on cloud theory with uncertain values. Background technique [0002] The existing technical state assessment of bridges is based on "Technical Specifications for Urban Bridge Maintenance" CJJ99-2003, "Code for Maintenance of Highway Bridges and Culverts" JTG H11-2004, "Standards for Evaluation of Technical State of Highway Bridges" JTG / T H21-2011 and other specifications or regulations. basis. Taking the component as the basic unit, establish the health score standard for bridge components and the deduction standard for component defects, and finally determine the technical status level of the bridge based on the size of the comprehensive score, which is generally divided into five categories: intact, good, poor, poor and dangerous Technical grade. The cloud map of bridge technical state classificati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D22/00
CPCE01D22/00
Inventor 郝天之谢正元欧进萍王龙林陈齐风于孟生
Owner GUANGXI TRANSPORTATION SCI & TECH GRP CO LTD
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