Probabilistic corrosion fatigue life assessment of a suspension bridge instrumented with long-term structural health monitoring system

Ye, X. W.; Liu, T.; Ni, Yiqing

doi:10.1177/1369433217698345

Cited by 9 publications

(5 citation statements)

References 40 publications

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“…Te Palmgren Miner linear cumulative rule is a commonly employed method for assessing fatigue damage over a specifc duration. Tis rule can be mathematically expressed as [44,45]…”

Section: Bayesian Network For the Osdmentioning

confidence: 99%

Data‐Driven Fatigue Failure Probability Updating of OSD by Bayesian Backward Propagation

Su,

Ye,

Ding

et al. 2024

Structural Control and Health Monitoring

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This study introduces a data-driven approach for updating the fatigue failure probability of the orthotropic steel deck (OSD) using Bayesian backward propagation. The OSD in steel bridges is considered as a parallel system composed of two critical fatigue-prone components, namely, the rib-to-diaphragm and rib-to-deck joints. A probabilistic model for fatigue reliability is established based on the equivalent structural stress method and limit state function. The system-level fatigue reliability model is then constructed, taking into account the correlations between limit states of individual components through Bayesian network forward propagation. The key advantage of the Bayesian network-based framework is its ability to perform backward propagation, allowing for the updating of failure probabilities for critical components when the system-level failure of the OSD is observed. Consequently, the proposed approach enables the identification of vulnerable components through data-driven fatigue failure probability updating. Finally, the approach is applied to a real instrumented steel bridge to determine the time-dependent fatigue failure probability at both the system and component levels over its service life. The results show that the component-level fatigue failure probability model will underestimate the fatigue life in comparison to the system-level model. Meanwhile, the proposed method could identify vulnerable components by quantifying the fatigue failure probability of in-service steel bridges.

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“…Te Palmgren Miner linear cumulative rule is a commonly employed method for assessing fatigue damage over a specifc duration. Tis rule can be mathematically expressed as [44,45]…”

Section: Bayesian Network For the Osdmentioning

confidence: 99%

Data‐Driven Fatigue Failure Probability Updating of OSD by Bayesian Backward Propagation

Su,

Ye,

Ding

et al. 2024

Structural Control and Health Monitoring

View full text Add to dashboard Cite

show abstract

“…Section loss using an exponential function (Komp, 1987), the average corrosion penetration rate, and deterioration rate including corresponding coefficients were measured for time-dependent structural capacity. In addition to the field-measured stress spectra for fatigue life assessment of welding details (Ye et al, 2012), recent studies (Deng et al, 2019; Hosseini et al, 2013; Ye et al, 2017; Zhang and Yuan, 2014) investigated composite steel girder bridges to evaluate the long-term structural deterioration of composite bridge under combined fatigue–corrosion behavior. Variation of stress level considering section loss of steel girder was evaluated in finite element (FE) model.…”

Section: Introductionmentioning

confidence: 99%

Application of strain-life fatigue-corrosion model for fillet-welded connections of sign support structures

Choi¹,

Najm

2020

Advances in Structural Engineering

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Fatigue-related corrosion is a complex phenomenon that induces damage accumulation and electrochemical deterioration throughout the service life of the structure. This article presents a previously proposed and modified strain-life Smith–Watson–Topper corrosion model for details on fillet-welded connection of highway sign support structures. To evaluate the degree of corrosion activity, hot-dip galvanized, weathering, and low-carbon steel are investigated with respect to chemical compositions, material properties, and the corresponding corrosion resistance indices. The existing fatigue testing data were analyzed and used to evaluate fatigue resistance under various corrosion environments. A modified Smith–Watson–Topper corrosion model is further utilized to determine acceptable constant amplitude fatigue thresholds for the American Association of State Highway and Transportation Officials fatigue limits under each corrosion category. It was found that low constant amplitude fatigue threshold values were observed for ASTM A588, A595, and A572 steels in locations with corrosion categories exposed to severe corrosive environments. Under these conditions, hot-dip galvanization or other surface treatments of the steel components of the sign supports are recommended to achieve higher constant amplitude fatigue threshold values.

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“…To achieve this goal, various advanced sensing technologies are employed with interdisciplinary knowledge to support SHM with convenient monitoring ways and reliable data acquisition. Interdisciplinary research is needed for the development of sensing techniques for various types of measurements (Duan et al, 2016;Ye et al, 2017). Displacement is one of the most commonly used indicators for structural assessment (Chen et al, 2014(Chen et al, , 2015(Chen et al, , 2019; and various displacement measurement methods using different technologies have been proposed and implemented.…”

Section: Introductionmentioning

confidence: 99%

A non-target structural displacement measurement method using advanced feature matching strategy

Dong

Çatbaş

2019

Advances in Structural Engineering

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Most of the existing vision-based displacement measurement methods require manual speckles or targets to improve the measurement performance in non-stationary imagery environments. To minimize the use of manual speckles and targets, feature points regarded as virtual markers can be utilized for non-target measurement. In this study, an advanced feature matching strategy is presented, which replaces the handcrafted descriptors with learned descriptors called Visual Geometry Group, of the University of Oxford descriptors to achieve better performance. The feasibility and performance of the proposed method is verified by comparative studies with a laboratory experiment on a two-span bridge model and then with a field application on a railway bridge. The proposed approach of integrated use of Scale Invariant Feature Transform and Visual Geometry Group improved the measurement accuracy by about 24% when compared with the commonly used existing feature matching-based displacement measurement method using Scale Invariant Feature Transform feature and descriptor.

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Probabilistic corrosion fatigue life assessment of a suspension bridge instrumented with long-term structural health monitoring system

Cited by 9 publications

References 40 publications

Data‐Driven Fatigue Failure Probability Updating of OSD by Bayesian Backward Propagation

Data‐Driven Fatigue Failure Probability Updating of OSD by Bayesian Backward Propagation

Application of strain-life fatigue-corrosion model for fillet-welded connections of sign support structures

A non-target structural displacement measurement method using advanced feature matching strategy

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