Reliability Evaluation of Hinged Slab Bridge Considering Hinge Joints Damage and Member Failure Credibility
The hinged slab bridge is widely used in medium- and small-span bridges because of its simple structure and convenient construction. However, hinge joints damage is the main defect of this kind of bridge, and it is difficult to express the deterministic damage degree of hinge joints in the detection...
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doaj-beb5a534678f4ec3833075eb86a00c502020-11-25T03:04:31ZengMDPI AGApplied Sciences2076-34172020-07-01104824482410.3390/app10144824Reliability Evaluation of Hinged Slab Bridge Considering Hinge Joints Damage and Member Failure CredibilityGuojin Tan0Qingwen Kong1Longlin Wang2Xirui Wang3Hanbing Liu4College of Transportation, Jilin University, Changchun 130025, ChinaCollege of Transportation, Jilin University, Changchun 130025, ChinaGuangxi Transportation Science and Technology Group Co., Ltd., Nanning 530007, ChinaCollege of Transportation, Jilin University, Changchun 130025, ChinaCollege of Transportation, Jilin University, Changchun 130025, ChinaThe hinged slab bridge is widely used in medium- and small-span bridges because of its simple structure and convenient construction. However, hinge joints damage is the main defect of this kind of bridge, and it is difficult to express the deterministic damage degree of hinge joints in the detection process. A system reliability evaluation method considering fuzzy detection information of hinge joints damage and member failure credibility is proposed in this paper. Firstly, the membership function is used to quantitatively express the fuzzy detection information of hinge joints, and the fuzzy variable is transformed to an equivalent random variable. Secondly, the functional relationship between the transverse distribution coefficient and hinge joints damage is constructed by the modified hinge-jointed plate method and response surface method, and the reliability of the member considering the fuzzy detection information of hinge joints damage is calculated by the first-order second-moment method (FOSM). Then, the failure credibility is introduced to represent the different possibilities of system failure caused by member failure, and a system reliability assessment method of different failure criteria considering member failure credibility is established based on copula theory. Finally, the applicability of the proposed method is verified by taking the reinforced concrete hinged slab bridge as a numerical example.https://www.mdpi.com/2076-3417/10/14/4824hinged slab bridgemembership functionsystem reliabilityfailure credibilityresponse surface methodcopula |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Guojin Tan Qingwen Kong Longlin Wang Xirui Wang Hanbing Liu |
spellingShingle |
Guojin Tan Qingwen Kong Longlin Wang Xirui Wang Hanbing Liu Reliability Evaluation of Hinged Slab Bridge Considering Hinge Joints Damage and Member Failure Credibility Applied Sciences hinged slab bridge membership function system reliability failure credibility response surface method copula |
author_facet |
Guojin Tan Qingwen Kong Longlin Wang Xirui Wang Hanbing Liu |
author_sort |
Guojin Tan |
title |
Reliability Evaluation of Hinged Slab Bridge Considering Hinge Joints Damage and Member Failure Credibility |
title_short |
Reliability Evaluation of Hinged Slab Bridge Considering Hinge Joints Damage and Member Failure Credibility |
title_full |
Reliability Evaluation of Hinged Slab Bridge Considering Hinge Joints Damage and Member Failure Credibility |
title_fullStr |
Reliability Evaluation of Hinged Slab Bridge Considering Hinge Joints Damage and Member Failure Credibility |
title_full_unstemmed |
Reliability Evaluation of Hinged Slab Bridge Considering Hinge Joints Damage and Member Failure Credibility |
title_sort |
reliability evaluation of hinged slab bridge considering hinge joints damage and member failure credibility |
publisher |
MDPI AG |
series |
Applied Sciences |
issn |
2076-3417 |
publishDate |
2020-07-01 |
description |
The hinged slab bridge is widely used in medium- and small-span bridges because of its simple structure and convenient construction. However, hinge joints damage is the main defect of this kind of bridge, and it is difficult to express the deterministic damage degree of hinge joints in the detection process. A system reliability evaluation method considering fuzzy detection information of hinge joints damage and member failure credibility is proposed in this paper. Firstly, the membership function is used to quantitatively express the fuzzy detection information of hinge joints, and the fuzzy variable is transformed to an equivalent random variable. Secondly, the functional relationship between the transverse distribution coefficient and hinge joints damage is constructed by the modified hinge-jointed plate method and response surface method, and the reliability of the member considering the fuzzy detection information of hinge joints damage is calculated by the first-order second-moment method (FOSM). Then, the failure credibility is introduced to represent the different possibilities of system failure caused by member failure, and a system reliability assessment method of different failure criteria considering member failure credibility is established based on copula theory. Finally, the applicability of the proposed method is verified by taking the reinforced concrete hinged slab bridge as a numerical example. |
topic |
hinged slab bridge membership function system reliability failure credibility response surface method copula |
url |
https://www.mdpi.com/2076-3417/10/14/4824 |
work_keys_str_mv |
AT guojintan reliabilityevaluationofhingedslabbridgeconsideringhingejointsdamageandmemberfailurecredibility AT qingwenkong reliabilityevaluationofhingedslabbridgeconsideringhingejointsdamageandmemberfailurecredibility AT longlinwang reliabilityevaluationofhingedslabbridgeconsideringhingejointsdamageandmemberfailurecredibility AT xiruiwang reliabilityevaluationofhingedslabbridgeconsideringhingejointsdamageandmemberfailurecredibility AT hanbingliu reliabilityevaluationofhingedslabbridgeconsideringhingejointsdamageandmemberfailurecredibility |
_version_ |
1724681359043067904 |