Evaluation of Thermal Effects on Cable Forces of a Long-Span Prestressed Concrete Cable–Stayed Bridge

Wang, J. F.; Zhang, J. T.; Xu, Rongqiao; Yang, Z. X.

doi:10.1061/(asce)cf.1943-5509.0001348

Cited by 19 publications

(14 citation statements)

References 12 publications

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“…Wang et al (2019) studied the temperature field of the prestressed concrete girder in the Puxi Cable-stayed Bridge and the thermal effects on the cable forces by using the field monitoring data when the bridge was not open to the public. They reported a three-piece vertical temperature distribution pattern instead of a two-piece one as specified by the Chinese code.…”

Section: Temperature Distributionmentioning

confidence: 99%

Thermal behaviors of bridges — A literature review

Chen

Zhou

et al. 2023

Advances in Structural Engineering

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This work provides a comprehensive review of previous studies concerning the static thermal behaviors of various types of bridges, including beam bridges, arch bridges, cable-stayed, and suspension bridges. Given that thermal behaviors are closely associated with the temperature distribution of bridges, the basis of the heat transfer analysis is briefly introduced first. The studies of the temperature distribution and the temperature actions of each type of bridge are then reviewed from the perspective of theoretical analysis, numerical simulation, experimental tests, and field monitoring. Finally, some existing problems are discussed, and future research topics are recommended.

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Section: Temperature Distributionmentioning

confidence: 99%

Thermal behaviors of bridges — A literature review

Chen

Zhou

et al. 2023

Advances in Structural Engineering

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“…There are many factors leading to the complex temperature fields in bridge structures, such as solar radiation, atmospheric temperature, and wind speed [39,40]. The significant structural thermal effect is caused by the complex temperature fields of bridges, which can result in potential safety hazards [41,42]. The study of the temperature fields and effects of bridges is important and valuable for ensuring their safety during operation.…”

Section: Bridgesmentioning

confidence: 99%

“…Yang calculated the cable force of the Anqing Yangtze River based on GPS data, and found that there was one obvious negative correlation between the measured structural temperature and cable force [63]. Wang analyzed the extreme weather during the monitoring period of the Puxi Bridge and simulated its temperature field under extreme weather conditions, and further designed the thermal load combinations for the simulation of extreme weather events; the calculation results show that the maximum variation of the cable fore under extreme weather reached up to 144.44 kN [42].…”

Section: Bridgesmentioning

confidence: 99%

Non-Uniform Temperature Fields and Effects of Steel Structures: Review and Outlook

Chen

Qian

2020

Applied Sciences

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Due to the dynamic coupling effects of solar radiation, longwave radiation, convective heat transfer, shadows, and other factors, the temperature field and effect of steel structures are significantly non-uniform, differing from traditional concepts that regard the temperature variation of steel structures as a slow and uniform progress. This difference can hinder the correct understanding of the thermal behavior of steel structures and ignore some potential safety hazards. This paper provides a review of the studies for the non-uniform temperature field and effect of steel structures, and presents some outlooks on future developments on the basis of the current research situation. A summary of research on the temperature field and effect of space structures, bridges and radio telescopes initially establishes the basic cognitive framework for this field. In addition, then, the basic principles of the numerical simulation of temperature fields are introduced through heat transfer mechanism, and the experimental test methods of temperature and its effects are described based on typical test cases. Finally, with a view to the future, some suggestions and opinions are provided in consideration of deficiencies in the current research status. This paper hopes to provide some valuable references for future research in this field through research summary, method introduction and outlook.

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“…It is primary to analyze the characteristics of recorded cable force signals under actual loading conditions. Signals induced by temperature actions and vehicle loadings are two main ingredients in the mixed signal, namely, slow-varying ingredient and dynamic ingredient, respectively [15][16][17]. To extract different components, blind separation methods are usually adopted [18].…”

Section: Introductionmentioning

confidence: 99%

Estimation of Extreme Cable Forces of Cable‐Stayed Bridges Based on Monitoring Data and Random Vehicle Models

Ren

Zhu

Fan

et al. 2021

Advances in Civil Engineering

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For long-span cable-stayed bridges, cables serve as one of the most important components to guarantee structural integrity. Forces of stay cables indicate not only the performance of cables themselves but also the overall condition of bridges. In order to help stakeholders to make maintenance decisions, an extreme cable force estimation method was proposed based on cable force measurements and traffic data from the weighing system. First, raw monitoring data were preprocessed based on a median filtering to obtain usable cable force signals. The multiresolution wavelet method was used to extract traffic-induced force component from mixed signals. Then, a Monte Carlo-based random vehicle model was developed using traffic data from the weighing system. Based on field temperature measurements and simulation of traffic-induced effects, extreme cable forces with respect to vehicle loads and temperature effects were predicted by extreme value theory. The Generalized Pareto Distribution (GPD) was adopted to establish the probability distribution models of the daily maximum cable force. Then, the extreme value within a return period of 100 years was determined and compared with the design loading demand. Finally, the effectiveness of the proposed method was validated through a cable-stayed bridge in China. As a result, the low-frequency varying component of cable force response had positive correlation with environmental temperatures, and the extreme value of the predicted cable force under prospective traffic volumes was within limit interval value according to the design code. The conclusions can be utilized by bridge owners to make maintenance decisions.

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Evaluation of Thermal Effects on Cable Forces of a Long-Span Prestressed Concrete Cable–Stayed Bridge

Cited by 19 publications

References 12 publications

Thermal behaviors of bridges — A literature review

Thermal behaviors of bridges — A literature review

Non-Uniform Temperature Fields and Effects of Steel Structures: Review and Outlook

Estimation of Extreme Cable Forces of Cable‐Stayed Bridges Based on Monitoring Data and Random Vehicle Models

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