Tower material strength evaluation and calculation method for solving factors influencing tower material strength

A calculation method and strength technology, which is applied in the field of transmission tower structural strength evaluation and calculation, and can solve problems such as small weight, distortion, and multiple peaks
CN105069280AInactive Publication Date: 2015-11-18STATE GRID CORP OF CHINA +2
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
STATE GRID CORP OF CHINA
Publication Date
2015-11-18
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention discloses a method for estimating and calculating the strength of a power transmission pole tower material on the basis of a rough-fuzzy set. The method comprises the following steps of performing reduction on an index set by using a rough set theory; determining evaluation index weight by a method that subjective weight and objective weight are combined; according to an established evaluation order set, comprehensively evaluating and calculating the actual strength of the tower material by using a fuzzy mathematical method. The typical uncertain problem that the factorial validity affecting the strength of the tower material is not clear in an evolutionary process can be solved. The method can provide an important scientific criterion to the safety evaluation of an iron tower structure.
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Description

[0001] This application is a divisional application with application number: 201410423096.2, application date: 2014.8.26, and title "A method for evaluating and calculating the strength of power transmission tower materials based on rough fuzzy sets". technical field

[0002] The invention relates to the field of structural strength evaluation and calculation of transmission poles and towers, and is particularly suitable for the structural safety evaluation of transmission poles and towers operating for a long time in complex natural environments. Background technique

[0003] The essence of line structure safety is an evolution process of an uncertain state space, and the state evolution (transition) process is random, in which the characteristic information representing the actual mechanical strength of tower materials is inaccurate, and the validity of the influencing factors is also It is not clear, the definition and extension of the operating state are vague, and the ex...

Claims

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