Corrosion fatigue analysis of stay cables under combined loads of random traffic and wind

Jiang, Chao; Wu, Chong; Cai, C.S.; Jiang, Xu; Xiong, Wen

doi:10.1016/j.engstruct.2019.110153

Cited by 46 publications

(7 citation statements)

References 35 publications

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“…Jiang et al 95 reveal that the combined effects of corrosion and fatigue drastically reduce the lifetime of steel wires, underscoring the insufficient fatigue resistance of stay cables under specific corrosion rates during the service life. Key parameters characterizing steel wire corrosion encompass uniform corrosion depth, maximum corrosion depth, and the decline in mechanical and fatigue properties.…”

Section: Reliability Methodsmentioning

confidence: 99%

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Corrosion fatigue mechanisms and evaluation methods of high‐strength steel wires: A state‐of‐the‐art review

Jie,

Zhang,

Susmel

et al. 2024

Fatigue Fract Eng Mat Struct

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Corrosion significantly degrades the fatigue performance of high‐strength steel wires. This study conducts an extensive review of corrosion fatigue in corroded steel wires based on relevant literature. It outlines corrosion fatigue evolution mechanisms and discusses various test methodologies. Six distinct approaches are employed to assess corrosion fatigue life. A three‐stage multiscale corrosion fatigue evolution process involves pitting formation and growth, short crack propagation, and long crack propagation. Advanced fatigue assessment methods like the theory of critical distances (TCD) and the strain energy density (SED) are explored for predicting the corrosion fatigue life for corroded steel wires. A model utilizes an elastoplastic corrosion fatigue damage framework to comprehensively represent the complex interactions. The physics‐data‐driven method has garnered increasing attention due to its requirement of fewer sample data and good robustness. Moreover, the reliability method underscores its pivotal role in guaranteeing the longevity of suspenders and cables in practical settings.

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Section: Reliability Methodsmentioning

confidence: 99%

“…I G U R E 3 4 Time-varying reliability indexes of original and corroded stay cables 93. [Colour figure can be viewed at wileyonlinelibrary.com] T A B L E 3 Uniform corrosion depth parameters 95. Corrosion rateSteel wires inside the stay cable C r…”

mentioning

confidence: 99%

Corrosion fatigue mechanisms and evaluation methods of high‐strength steel wires: A state‐of‐the‐art review

Jie,

Zhang,

Susmel

et al. 2024

Fatigue Fract Eng Mat Struct

View full text Add to dashboard Cite

show abstract

“…For galvanized steel wires, corrosion can be divided into two stages: corrosion of the surface galvanized layer and corrosion of the inner steel wire. Te uniform corrosion depth of each stage can be characterized by an exponential model, as shown in equation ( 19) [34].…”

Section: Steel Wire Time-variant Corrosion Modelmentioning

confidence: 99%

“…Determining each cable's corrosive environment grade and corrosion level for the detail bridge is a challenge relying on technologies and methods selected. Jiang et al [34] set three values for the annual corrosion rate of a high-strength steel wire: 15, 30, and 45 in equation ( 19), corresponding to the low, medium, and high corrosion environment, respectively. Accordingly, the parameters representing the corrosion development trend are set as 0.45, 0.60, and 0.75 in equation (19), respectively, based on the experiment and simulation results of steel wire corrosion [44,45].…”

Section: Fatigue Life Analysis Of Corroded Stay Cablesmentioning

confidence: 99%

“…Data-driven methods use the data processing methods such as data statistics and data mining to directly assess the condition of the diagonal cable based on the monitoring responses [23,[28][29][30][31]. Unlike the data-driven method, the fnite element model-based approach uses fnite element analysis to indirectly obtain the tension force of cables under diferent loading conditions, and then perform condition assessment and life prediction of the stay cable using suitable fatigue life models [28,[32][33][34]. Currently, most of the fatigue assessment methods for the stay cables are proposed based on the linear Palmgren-Miner law.…”

Section: Introductionmentioning

confidence: 99%

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Fatigue Life Evaluation of Parallel Steel-Wire Cables under the Combined Actions of Corrosion and Traffic Load

Cheng

Liu

et al. 2023

Structural Control and Health Monitoring

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Fatigue and corrosion are the main reasons for the failure of stay cables. Traffic load also plays a significant role in cable fatigue. To study the fatigue life of stay cables under the combined action of traffic load and corrosion, this study originally deduced the fatigue probability model for steel wires, considering the stress range and average stress based on the nonlinear fatigue damage model. Then, the weight loss rate was introduced into the fatigue probability model for steel wires in order to obtain the fatigue life probability model for corroded steel wires. Subsequently, a Monte Carlo simulation (MCS) was conducted to predict the fatigue life of stay cables under different guaranteed probabilities. Finally, using a cable-stayed bridge on the Yangtze River in China as an example, the fatigue life of the stay cables in the bridge under the combined effects of different corrosive environments and measured traffic loads was evaluated. Results indicate that both the stress range and mean stress affect the fatigue life of the steel wire. The fatigue life of stay cables is determined by a few steel wires with shorter lives, and the stress redistribution accelerates the failure of the inner wire of the stay cables. The fatigue life of the stay cables on background engineering is much less than the design life of the bridge under the combined actions of a middle-level or high-level corrosive environment and traffic load.

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Automatic assessment of the fatigue life of cables of cable‐stayed bridges by on‐line monitoring

Xu,

Wu,

Casas

et al. 2024

Structural Concrete

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To accurately and timely evaluate the long‐term performance of cables in cable‐stayed bridges, an automatic perception technology scheme by on‐line monitoring of cable vibrations is proposed for the fatigue damage evaluation of in‐service cables. In the fatigue‐stress amplitude of cables, the stress produced by tension changes caused by external actions like traffic, wind, and temperature is the main component. When cables vibrate significantly, the stress caused by changes in cable vibration‐induced additional stress should not be neglected. Besides axial stress, bending stress is also significant in cable fatigue damage analysis. To make cable fatigue life prediction closer to real engineering scenarios, this factor should be considered. First, based on the cable dynamic stiffness theory, a method is proposed for the automatic gathering of the actual full‐stress time history of a cable by on‐line vibration monitoring. Furthermore, based on Miner's linear fatigue damage accumulation theory, an automatic fatigue life assessment method is proposed and applied to the vibration monitoring data of cables on an operational bridge. The results indicate that the proposed technology realizes automatic on‐line monitoring of cable forces and fatigue assessment of cables. Through statistical analysis of cable fatigue stress amplitude, it was determined that in cable‐stayed bridges, compared to long cables, short cables are more sensitive to external variable loads, typically experiencing larger and more frequent tension changes, and are more prone to fatigue. Therefore, short cables should be given more attention when analyzing cable fatigue in cable‐stayed bridges.

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Corrosion fatigue analysis of stay cables under combined loads of random traffic and wind

Cited by 46 publications

References 35 publications

Corrosion fatigue mechanisms and evaluation methods of high‐strength steel wires: A state‐of‐the‐art review

Corrosion fatigue mechanisms and evaluation methods of high‐strength steel wires: A state‐of‐the‐art review

Fatigue Life Evaluation of Parallel Steel-Wire Cables under the Combined Actions of Corrosion and Traffic Load

Automatic assessment of the fatigue life of cables of cable‐stayed bridges by on‐line monitoring

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