Safety Assessment for Single-Tower Self-Anchored Suspension Bridge

2010 ◽  
Vol 163-167 ◽  
pp. 2738-2741 ◽  
Author(s):  
Xiao Fei Liang ◽  
Ying Chun Fu ◽  
Yue Xu
Keyword(s):  
Risk Factor ◽  
Safety Assessment ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Safety Evaluation ◽  
Suspension Bridge ◽  
Assessment Method ◽  
Grey Theory ◽  
Analytic Hierarchy ◽  
Risk Ranking

Connected with the practical construction and considering Structural properties of single-tower self-anchored suspension bridge, the multi-level safety evaluation model is established according to the main risk factor and weighting rate of risk factor is analyzed by the analytic hierarchy process. A safety assessment method with qualitative analysis and quantitative analysis is proposed based on the grey theory and fuzzy mathematics theory for the practical problem of multi-index comprehensive evaluation, and risk ranking is given.

A Comprehensive Analysis Method Based on Fuzzy Hierarchy for the Safety Assessment of Overhead Traveling Crane

2010 ◽  
Vol 20-23 ◽  
pp. 196-201
Author(s):  
Ge Ning Xu ◽  
Fan Jiang
Keyword(s):  
Safety Assessment ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Safety Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Assessment Method ◽  
Assessment Model ◽  
Analytic Hierarchy ◽  
Set Up ◽  
Hierarchy Process

By combined fuzzy comprehensive evaluation with AHP (Analytic Hierarchy Process) together, a safety assessment model for overhead traveling crane is set up in regard to deficiency of safety assessment method for crane at present, which can evaluate safety of overhead traveling crane in-service qualitatively and quantitatively. Through a safety analysis and assessment on general overhead traveling crane, the result of assessment is in accord with the practical situation of overhead traveling crane. It can reflect more fully the safety of the whole crane system and the influence and level of each factor to whole crane system safety, witch an effective synthetic evaluation method is put forward for the safety evaluation of crane.

Analysis of the Safety Factors of Municipal Road Undercrossing Existing Bridge Based on Fuzzy Analytic Hierarchy Process Methods

2021 ◽  
pp. 036119812110318
Author(s):  
Yonghong Yang ◽  
Yu Chen ◽  
Zude Tang
Keyword(s):  
Safety Assessment ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Safety Evaluation ◽  
Safety Factors ◽  
Analytic Hierarchy ◽  
Road Engineering ◽  
Existing Bridges ◽  
Hierarchy Process ◽  
Engineering Projects

Increasing traffic volume and insufficient road lanes often require municipal roads to be reconstructed and expanded. Where a road passes under a bridge, the reconstruction and expansion project will inevitably have an impact on the bridge. To evaluate the safety impact of road engineering projects on bridges, this paper evaluates the safety of the roads and ancillary facilities of highway bridges involved in municipal road engineering projects. Based on a comprehensive analysis of the safety factors of municipal roads undercrossing existing bridges, a fuzzy comprehensive analytic hierarchy process (AHP) evaluation method for the influence of road construction on the safety of existing bridges is proposed. First, AHP is used to select 11 evaluation factors. Second, the target layer, criterion layer, and index layer of evaluation factors are established, then a safety evaluation factor system is formed. The three-scale AHP model is used to determine the weight of assessment indexes. Third, through the fuzzy comprehensive AHP evaluation model, the fuzzy hierarchical comprehensive evaluation is carried out for the safety assessment index system. Finally, the fuzzy comprehensive evaluation method is applied to the engineering example of a municipal road undercrossing an existing expressway bridge. The comprehensive safety evaluation of the existing bridge reflects the practicability and feasibility of the method. It is expected that, with further development, the method will improve the decision-making process in bridge safety assessment systems.

Comprehensive Evaluation Model of Grey Fuzzy on Oilfield Development Program

2011 ◽  
Vol 474-476 ◽  
pp. 484-489 ◽  
Author(s):  
Juan Hu ◽  
Zhi Bin Liu ◽  
Kai Qi Zou
Keyword(s):  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Development Program ◽  
Grey Theory ◽  
Fuzzy Evaluation ◽  
Development Programs ◽  
Analytic Hierarchy ◽  
Fuzzy Method ◽  
Set Up ◽  
Oilfield Development

Based on the characteristic of oilfield development programs, we comprehensive analyzed the influence of development and economical factors on development program, and constructed a comparative evaluation factors system of oilfield development program. In addition, based on the comparative analysis of grey theory and fuzzy evaluation, a grey-fuzzy appraisal method was set up and successfully applied to the evaluation of oilfield development programs. Grey theory was used to describe the factors that are difficult to quantification, and the analytic hierarchy process was used to confirm the appraisal factor’s weight and grey level. Furthermore, we chose eight development programs of an oilfield as our evaluation target and get an option sequence by using the grey-fuzzy method. The result shows that, grey-fuzzy methods have more advantage than fuzzy method in the evaluation of oilfield development programs.

Research on the Grey Assessment Method of Dam Failure Risk

2011 ◽  
Vol 474-476 ◽  
pp. 1690-1695
Author(s):  
Ying Jiang ◽  
Qiu Wen Zhang
Keyword(s):  
Safety Assessment ◽  
Disaster Risk ◽  
Assessment Method ◽  
Dam Failure ◽  
Dam Safety ◽  
Grey Theory ◽  
Analytic Hierarchy ◽  
Assessment Index ◽  
Failure Risk ◽  
The World

The dam safety assessment is related with the national economy and the people’s livelihood all the world, so it is important and meaningful to research methods of protecting the safety of dam. The dam failure disaster risk is regarded as main researching object in this thesis. The theories and methods, such as knowledge of dam engineering, risk analysis, analytic hierarchy processing, grey theory and so on, are introduced into the thesis. This research performs relatively detailed study on methods of comprehensive risk assessment, synthesis assessment structure system, and method of measuring assessment index of the dam.

Safety Assessment Model for Expressway Based on Accident Mechanism

2014 ◽  
Vol 1030-1032 ◽  
pp. 2110-2114
Author(s):  
Li Li Lu ◽  
Gang Ren ◽  
Li Ming Lu
Keyword(s):  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Safety Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Assessment Model ◽  
Analytic Hierarchy ◽  
Safety Level ◽  
Factors Affecting ◽  
Accident Mechanism ◽  
Hierarchy Process

It is of great significance to enhance freeway safety. This paper analyzed the factors affecting freeway safety systematically. Analytic hierarchy process (AHP) and fuzzy comprehensive evaluation (FCE) were applied to develop a freeway safety evaluation model. This model has a practical application on evaluate freeway safety level.

The Safety Assessment of Buildings Based on Integrated AHP and Fuzzy Comprehensive Evaluation

2010 ◽  
Vol 168-170 ◽  
pp. 2672-2677
Author(s):  
Hui Min Li ◽  
Xing Run Zhong ◽  
Xia Jiao ◽  
Tan Xiao
Keyword(s):  
Safety Assessment ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Fuzzy Theory ◽  
Evaluation Model ◽  
Safety Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Evaluation Index System ◽  
The Third ◽  
Comprehensive Evaluation Model

To effectively evaluate the safety of houses and buildings, and its owners, users and managers in the usage and management of the process to provide guidance, establish the detailed impact of the third-level buildings safety evaluation index system. Based on the fuzzy theory, used AHP to determine the weight of each index and establish a housing building security fuzzy comprehensive evaluation model. Use this model to execute the security of a middle school as an example and the results shows that the evaluation method is feasible, scientific and reasonable.

scholarly journals Durability Assessment of Lightweight Cellular Concrete in Subgrade by the Method of Analytic Hierarchy Process Combined with Fuzzy Comprehensive Evaluation

2019 ◽  
Vol 2019 ◽  
pp. 1-10
Author(s):  
Xin Liu ◽  
Chengwei Ni ◽  
Liye Zhang ◽  
Ke Sheng ◽  
Baoning Hong
Keyword(s):  
Analytic Hierarchy Process ◽  
Influencing Factors ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Assessment Method ◽  
Assessment Model ◽  
Analytic Hierarchy ◽  
Durability Assessment ◽  
Hierarchy Process ◽  
Cellular Concrete

The durability of lightweight cellular concrete (LCC) and the corresponding assessment method are studied in this paper to improve the utilization of LCC in subgrade construction engineering. The durability assessment method is established by combining the analytic hierarchy process (AHP) with fuzzy comprehensive evaluation (FCE). The main assessment processes are as follows. Firstly, based on the physical and mechanical properties of LCC, the influencing factors are selected in terms of preliminary design, construction technology, and operation and management after completion of construction. The grading standard of influencing factors is established as well. Secondly, a multilevel assessment model with targets level, criteria level, and indexes level is established. AHP determines the effective weight of the lower level relative to the upper level. The consistency check of the judgment matrix is conducted to prove the rationality of the distribution of influencing factors’ effect weight. Thirdly, the membership function which is suitable for each influencing factor is built to calculate the membership degree. Besides, the practicality and reliability of AHP combined with FCE are demonstrated through a practical engineering case, which is the third section of a highway in Guangdong Province, China.

Decision Evaluation of Harbin Metro Based on Fuzzy Theory

2013 ◽  
Vol 438-439 ◽  
pp. 1024-1027
Author(s):  
Xiao Guo Chen
Keyword(s):  
Comprehensive Evaluation ◽  
Fuzzy Theory ◽  
Evaluation Model ◽  
Fuzzy Comprehensive Evaluation ◽  
Decision Makers ◽  
Geological Environment ◽  
Analytic Hierarchy ◽  
Comprehensive Evaluation Model ◽  
Hierarchy Process ◽  
Weight Coefficients

The paper introduces some information about Harbin Metro line 1, makes the decision analysis on economies, environment, society and geological environment of Harbin Metro line 1 by some fuzzy comprehensive evaluation model, and gives the weight coefficients of indicators through analytic hierarchy process. The comprehensive evaluation result provides the basis for decision-makers during decision of metro projects.

Sign in / Sign up

Export Citation Format

Share Document