The Research and Application of Masonry Structure Reliability Rating Method Based on Extenics

2013 ◽  
Vol 291-294 ◽  
pp. 1029-1038
Author(s):  
Ming Liu ◽  
Bao Feng Song ◽  
Daniel Dias ◽  
Jing Pan

Aiming at masonry structure housing, establish the structure reliability evaluation index system. Subsidiary factors index dimensionless processing, the traditional matter-element model is analyzed, and based on this, the article puts forward an improved correlation functions, establish correlation function of the correlation factors of the index layer. Consider the weight coefficients of members,gave the extension index,combining analysis of the structural member reliability and extension comprehensive evaluation of the integral structural reliability, establish the masonry structure housing reliability assessment method framework. And prove the feasibility of this method through engineering examples.

2013 ◽  
Vol 357-360 ◽  
pp. 2277-2281 ◽  
Author(s):  
Jun Guan ◽  
Zhi Hui Zhang ◽  
Yong Wu

Selection of material supplier is important to international construction project management, and can bring impacts on the project's quality, schedule and cost. Considering the features of international construction projects, we built a selection decision-making evaluation index system. Triangular fuzzy AHP (Analysis of Hierarchy Process) method was used to calculate the weights of evaluation index. Using the medium value of triangular fuzzy number, a simple and convenient method was developed to test the consistency of judgment matrix. Base on calculating the weights of evaluation index, a fuzzy matter-element model was proposed to calculate the comprehensive evaluation values. Taking the selection of cement suppliers of the Congo (Brazzaville) National Road One Second Project as an example, the Euclid closeness of alternative suppliers was calculated to determine the ranking order of alternatives.


2013 ◽  
Vol 409-410 ◽  
pp. 1243-1247
Author(s):  
Yu Jie ◽  
Wen Tong

The group eigenvalue method and extension set theory were used to assess the comprehensive evaluation of the satisfaction degree for the public transportion. Analyzing the factors that influence the satisfaction degree of public transportion, it puts forward the evaluation index system of satisfaction degree. In order to determine effectively the satisfaction degree, used the group eigenvalue method to decide the index weight, and the matter element model of satisfaction degree for public transportion was constructed. Finally, the scientificity and rationality of the evaluation method was detected by application example, according to the evaluation result, carried on the corresponding analysis.


2021 ◽  
Vol 2095 (1) ◽  
pp. 012023
Author(s):  
Yawei Xue ◽  
Xueying Wang ◽  
Lang Zhao ◽  
Yizheng Li

Abstract With the increasing complexity of power system grid structure and development environment, the dimensions and factors that need to be considered in the power grid statu analysis also become complex. It is necessary to judge the aspects of power grid that need to be improved through the analysis results. This paper constructs an evaluation index system of power grid, including safety reliability, operation efficiency, operation margin of power grid, power grid structure and equipment level. Based on the index system, an evaluation model combining matter-element model and entropy weight method is proposed. Matter element model can not only quantitatively judge the development level of power grid, but also find out the weakness of power grid and put forward the direction of its improvement. Finally, a case study is proposed to show that the matter element model analysis in power grid comprehensive evaluation is feasible and has a good evaluation accuracy.


2012 ◽  
Vol 518-523 ◽  
pp. 4135-4138 ◽  
Author(s):  
Yan Kang ◽  
Huan Jie Cai ◽  
Song Bai Song

A fuzzy matter-element evaluation modeling based on cooperative game weight (FME-CGW) is presented in this paper. Based on cooperative game theory, authors introduce a cooperative game weight which embodying an idea of competition and coordination among different weight methods. Based on the cooperative game weight, employing fuzzy matter-element theory and Hamming approach degree, the authors develop FME-CGW model. The derived model is applied to assess the groundwater resources carrying capacity in Guanzhong plain in Shaanxi province. The results are reasonable and satisfactory by comparing to other methods. The study of this practical example shows that the modeling presented in this paper is a new method with simple algorithm and strong practicability, which can be adopted to analysis various comprehensive evaluation issues.


2013 ◽  
Vol 779-780 ◽  
pp. 611-614 ◽  
Author(s):  
Cheng Zan Chu ◽  
Chuan Zheng Zhu ◽  
Yao Wang

In recent years, with the rapid increase of tunnel percentage in Midwestern highway construction, the tunnel operation cost rise quickly. In the cost, energy consumption of tunnel ventilation and illumination occupies a great proportion. In order to realize energy-saving and emission-reduction, there have been some new ventilation technology, for instance, the improved ventilation device, the improved ventilation method, and some new ventilation control technology. However after some new technology was applied, the phenomenon of energy-saving but not money-saving appeared. For the scientific and objective evaluation of highway tunnel ventilation technology energy-saving effect, construct evaluation index system from the three dimensions of technology usability, economy, and application effect, and then evaluate the energy-saving effect based on matter-element model. The result of assessment will give decision support for the later selection of highway tunnel ventilation technology proposal.


2010 ◽  
Vol 108-111 ◽  
pp. 403-408 ◽  
Author(s):  
Qi Liang Wang ◽  
Lei Wang

In connection with the problems that coal mining accounts for water environment pollution and socio-economic development, the main factors was analyzed. From water environment system, ecological system and socio-economic system, corresponding evaluation index system was perfected and became fit for factual situation. Matter-element model of water environment impact evaluation was constructed and used to evaluate four large-scale coal mining areas. The results showed that assessment model in accordance with the objective reality. Compared with other evaluation models, matter-element model is more accurate and comprehensive. By matlab, a calculating program was made and can be dynamically amended.


2013 ◽  
Vol 291-294 ◽  
pp. 2217-2221
Author(s):  
Hai Yan Wang ◽  
Wei Li ◽  
Xin Wei Du ◽  
Quan Ming Zhang ◽  
Song Ling Dai ◽  
...  

With integrated consideration of existing research on power grid development evaluation index system and requirements of power grid development diagnosis, a more comprehensive power grid development diagnostic index system is established from five aspects of power grid security and reliability, high efficiency, coordination, economics and social environment and more than 20 indicators. In addition, a new power grid development diagnostic evaluation method based on hierarchical analysis and multi-level fuzzy comprehensive evaluation is proposed in order to diagnose and assess power grid status quo and the actual level of development comprehensively, objectively and systematically ,which will help power grid enterprises conveniently to find the main reason of affecting the power grid and enterprise development and encourage enterprises to continuously improve the targeted improvement measures and the level of grid development.


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