Cable-stayed bridge Static performance with different cable damage condition caused by fire
DOI:
https://doi.org/10.14311/Keywords:
Cable-stayed bridge, Stay cable, Fire, Static propertyAbstract
The stay cable is usually close to the carrieway. Once the fire occurs, it will inevitably cause different degrees of damage to the cable of the bridge. Rapid and accurate mechanical analysis and evaluation of fire-damaged cable-stayed bridges is very important to provide accurate basis for decision makers. Taking Sifang Tai Bridge fire accident as the engineering background, this paper uses damage theory and finite element theory to simulate the fire damage of different cable-stayed cables and different fire damage degrees of the same cable, and analyzes the change characteristics of the static parameters of the main beam and cable force caused by fire damage of the cable-stayed bridge. The results show that the fire damage of back cable and mid-span cable has a global effect on the alignment and cable force of the whole bridge. However, the damage caused by other cable fires is localized, with only the deflection near the self anchored main beam position and the significant influence of 3-4 cable forces nearby. It is similar to the support stiffness change or support failure of multi-point elastic supported continuous beam. The fire induced fusing damage occurred on the outermost back cable, which caused the cable force of the nearby cable not to reach the warning value, but the surplus was very small. The results of the study can provide implications for similar projects.
Received: 8.2.2025
Received in revised form: 24.7.2025
Accepted: 30.8.2025
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References
Babrauskas V. Fires originating in branch-circuit NM cables due to installation damage [J]. Journal of fire sciences, 2018, 36(5): 438-450.
Kerekes Z, Restás Á, Lublóy É. The effects causing the burning of plastic coatings of fire-resistant cables and its consequences[J]. Journal of Thermal Analysis and Calorimetry, 2020, 139: 775-787.
Lee J I, Ha K C. A Study for the Fire Analysis and Igniting Cause of Freezing Protection Heating Cables[J]. Journal of the Korean Society of Safety, 2018, 33(3): 15-20.
Kotsovinos P, Judge R, Walker G, et al. Fire performance of structural cables: Current understanding, knowledge gaps, and proposed research agenda[J]. Journal of Structural Engineering, 2020, 146(8): 03120002.
Weinschenk C, Madrzykowski D, Courtney P. Impact of flashover fire conditions on exposed energized electrical cords/cables[J]. Fire technology, 2020, 56(3): 959-991.
He L, Ma G, Hu Q, et al. A novel method for risk assessment of cable fires in utility tunnel[J]. Mathematical Problems in Engineering, 2019, 2019(1): 2563012.
Alvares N, Fernandez-Pello A C. Fire initiation and spread in overloaded communication system cable trays[J]. Experimental Thermal and Fluid Science, 2000, 21(1-3): 51-57.
Feng J, Gao K, Gao W, et al. Machine learning-based bridge cable damage detection under stochastic effects of corrosion and fire[J]. Engineering Structures, 2022, 264: 114421.
Kim M O, Kim K, Yun J H, et al. Fire risk assessment of cable bridges for installation of firefighting facilities[J]. Fire safety journal, 2020, 115: 103146.
Kotsovinos P, Atalioti A, McSwiney N, et al. Analysis of the thermomechanical response of structural cables subject to fire[J]. Fire Technology, 2020, 56: 515-543.
Fisher R P, Stoliarov S I, Keller M R. A criterion for thermally-induced failure of electrical cable[J]. Fire Safety Journal, 2015, 72: 33-39.
Zheng X, Jian J, Liu L, et al. Static and Dynamic Performance Analysis of Cable-Stayed Bridges with Cables Damaged Fire[J]. Buildings, 2024, 14(4): 884.
Kotsovinos P, Panev Y, Lilja H, et al. Reliability-based Fire Protection of Structural Cables due to Deck Fires on Cable Supported Bridges[J]. Structural Engineering International, 2023, 33(4): 576-585.
Mi H, Zhang X, Wang W, et al. A risk analysis method of cable fire in utility tunnel based on a Bayesian network[J]. Mathematical Problems in Engineering, 2022, 2022(1): 1952263.
Bennetts I, Moinuddin K. Evaluation of the impact of potential fire scenarios on structural elements of a cable-stayed bridge[J]. Journal of Fire Protection Engineering, 2009, 19(2): 85-106.
Gong X, Agrawal A K. Safety of cable-supported bridges during fire hazards[J]. Journal of Bridge Engineering, 2016, 21(4): 04015082.
Chen C, Chen J, Zhao X, et al. Experimental investigation on combustion characteristics of steel cable for cable-stayed bridge[J]. Journal of Thermal Analysis and Calorimetry, 2018, 134: 2317-2327.
Kim M O, Kim K, Yun J H, et al. Fire risk assessment of cable bridges for installation of firefighting facilities[J]. Fire safety journal, 2020, 115: 103146.
Liu Y J, Ning B, Wang Y. Study on thermal and structural behavior of a cable-stayed bridge under potential tanker truck fires[J]. Applied Mechanics and Materials, 2012, 238: 684-688.
Lee J, Choi K, Yoon J, et al. Numerical analysis-based structural behavior assessment of a cable-stayed bridge under tanker fire[J]. Structure and Infrastructure Engineering, 2023, 19(12): 1761-1778.
Zhang Y, Fang Z, Jiang R, et al. Static performance of a long-span concrete cable-stayed bridge subjected to multiple-cable loss during construction[J]. Journal of Bridge Engineering, 2020, 25(3): 04020002.
Liu Z, Lou G, Hou J, et al. Designing a two-level steel cable-stayed bridge against fires[J]. Structural Engineering International, 2023, 33(4): 569-575.
Chen W, Chen X, Shen R, et al. Fire resistance analysis and protection measures for cable components of suspension bridges[J]. Journal of Constructional Steel Research, 2024, 220: 108852.
Kotsovinos P, Judge R, Walker G, et al. Fire performance of structural cables: Current understanding, knowledge gaps, and proposed research agenda[J]. Journal of Structural Engineering, 2020, 146(8): 03120002.
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