Bridge Rating and Reliability Correlation: Comprehensive Study for Different Bridge Types

Akgül, Ferhat; Frangopol, Dan M.

doi:10.1061/(asce)0733-9445(2004)130:7(1063)

Cited by 56 publications

(20 citation statements)

References 5 publications

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“…1 [3] is located at northwest corner of Denver metropolitan area, and consists of 14 mixed type highway bridges. This network was described in Akgü l and Frangopol [4,6]. The selection criteria for the bridge network was to choose bridges located within close proximity of each other, preferably along interstate highways, and within the same transportation and maintenance regions.…”

Section: Bridge Networkmentioning

confidence: 99%

“…This is followed by determination of initial component and system reliability indices based on system failure models. Detailed descriptions of these procedures are presented in Akgü l and Frangopol [4,6]. Finally, in order to calculate the rating factors and reliability indices for bridge components and systems over time, time-dependent live load model and corrosion models for concrete and steel are adopted.…”

Section: Bridge Live Load Deterioration and System Reliabilitymentioning

confidence: 99%

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Time-dependent interaction between load rating and reliability of deteriorating bridges

Akgül

Frangopol

2004

Engineering Structures

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Section: Bridge Networkmentioning

confidence: 99%

Section: Bridge Live Load Deterioration and System Reliabilitymentioning

confidence: 99%

Time-dependent interaction between load rating and reliability of deteriorating bridges

Akgül

Frangopol

2004

Engineering Structures

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“…On the other hand, conventional structural reliability models are typically based on assessments of the likelihood of failure in the form of applied loads exceeding structural resistance [3,5,10,11]. Reliability models that are based on strength limit states can also be timedependent, with the influence of time considered on the resistance and/or the loads.…”

Section: Introductionmentioning

confidence: 99%

Reliability of bridge decks in the United States

Tabatabai

Lee

Tabatabai

2015

BRS

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Abstract. Deterioration of bridge decks in the UnitedStates is an important issue due to its major impact on bridge maintenance costs nationwide. In this paper, results of survival (reliability) analyses performed on bridge data for all fifty states and Puerto Rico are presented. Data were obtained from the 2011 National Bridge Inventory (NBI) database. The end of service life is defined as a recorded NBI bridge deck rating of 5. Only non-reconstructed bridges and conventional bridge types and decks were considered. The NBI-derived parameters included in the analyses were age, average daily traffic (ADT), deck surface area, and deck rating. Each state's data were analyzed separately to assess and compare relative performance among the states. Deck reliability at an age of fifty years ranges from less than 20% to over 90%. The geographic regions with the highest overall 50-year reliability are generally in the northeastern and northern United States.

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“…Among them, deflection is an important element in the design process of girder bridges as well as in defining the system behavior of the superstructure, including slab thickness, girder stiffness, and span length [1]. Currently, bridge safety is measured in terms of the rating factor which reflects the live load capacity of the structure [2,3,4], and the bridge rating factor can be calculated by the deflection obtained from the load test [3,4].…”

Section: Introductionmentioning

confidence: 99%

Estimation of deflections of bridge by two-step model updating approach based on ambient acceleration measurements

Cho

Yun

2008

SPIE Proceedings

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For the deflection measurement of a bridge, sensor inaccessibility due to the reference point (fixed point) may cause lots of inconvenience and increase of installation cost and time. Therefore, an alternative indirect deflection estimation method is proposed utilizing the FE model updating with measured acceleration data from an ambient vibration test. For the fast and stable optimization during the model updating, two step model updating approach is additionally proposed. To investigate the effects of used modal quantities and their weighting factors, extensive model updating was carried out by applying several kinds of data sets: using only natural frequencies, using only mode shapes, and using both of them, By simulating the load test on each of the updated model, deflections were estimated and compared with the real measured deflection data in the load test.

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Bridge Rating and Reliability Correlation: Comprehensive Study for Different Bridge Types

Cited by 56 publications

References 5 publications

Time-dependent interaction between load rating and reliability of deteriorating bridges

Time-dependent interaction between load rating and reliability of deteriorating bridges

Reliability of bridge decks in the United States

Estimation of deflections of bridge by two-step model updating approach based on ambient acceleration measurements

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