Fuzzy Reliability Evaluation of Existing Bridge Structures through FAHP

Author

Hong Wang ; Hong Yuan ; Zhitao Yu

Author_Institution

Dept. of Mechanic & Civil Eng., Ginan Univ., Guangzhou

fYear

2008

fDate

27-28 Dec. 2008

Firstpage

179

Lastpage

182

Abstract

A Model of fuzzy reliability is established with consideration of load history for the evaluation of existing bridge structures through Fuzzy Analytical Hierarchy Process (FAHP). In this model, the reliability of load-bearing capacity for an actual box-beam concrete bridge is analyzed. Assuming failure of each aperture has strong correlation, fuzzy failure probability of load-bearing capacity is given and compared with that obtained by traditional method. Thus the favorable influence of load history should be considered. Results of the analysis show that the influence of load history on the increase in reliability of the bridge could not be neglected.

Keywords

bridges (structures); fuzzy set theory; reliability; box-beam concrete bridge; bridge structures evaluation; fuzzy analytical hierarchy process; fuzzy failure probability; fuzzy reliability evaluation; load history; load-bearing capacity; Analytical models; Apertures; Bridges; Capacity planning; Civil engineering; Concrete; Extraterrestrial measurements; Fuzzy sets; History; Random variables; existing bridge; fuzzy reliability; load history; load-bearing capacity;

fLanguage

English

Publisher

ieee

Conference_Titel

Modelling, Simulation and Optimization, 2008. WMSO '08. International Workshop on

Conference_Location

Hong Kong

Print_ISBN

978-0-7695-3484-8

Type

conf

DOI

10.1109/WMSO.2008.93

Filename

4756984