A study on the effect of temperature on structural deformation and cable-stays tension force of Tran-Thi-Ly cable-stayed bridge
Email:
vdhung@dut.udn.vn
Keywords:
FEM model, effect of temperature, cable-stayed bridge, structural deformation, cable-stays tension
Abstract
The influence of temperature on the performance of cable-stayed bridges has attracted much attention in recent times. The assessment of the iMPact of temperature on the behavior of the cable-stayed bridge is essential for timely maintenance works. This paper studies the effects of temperature on the overall deformation of the deck-girder and tower of the Tran Thi Ly bridge (Da Nang) by using the finite element model method (FEM). First, the Tran Thi Ly bridge will be modeled using Midas civil software. Then, the experimental measurement data will be coMPared with the computational analysis to verify the model. The temperature load is taken according to TCVN 11823-2017 code with two main types: uniform temperature distribution and temperature gradient. The results demonstrate that temperature significantly iMPacts the bridge's overall deformation. The longitudinal displacement of the bridge tower is rather significant while the vertical displacement for bridge deck-girder is reasonably considerable. Moreover, temperature changes lead to alterations in the tension of the cable-stays. For side span, the temperature differences will decrease the tension force in the cable-stays. On the contrary, the change in tension of cable-stays for the main span of the Tran Thi Ly bridge depends on the bridge's overall deformation and its location. Therefore, temperature load has a relatively large influence on bridge deformation and cable tension change, it is necessary to pay attention in the process of maintaining and operating the bridge, especially in hot conditionsReferences
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[9]. H. L. Zhang, J. Li, C. G. Liu, T. H. Jiang, J. Wei, Thermal effect of the cable-stayed bridge tower, Wuhan Univ. J. Nat. Sci, 8 (2003) 1121–1125. https://doi.org/10.1007/BF02903684.
[10]. H. V. Le, M. Nishio, Time-series analysis of GPS monitoring data from a long-span bridge considering the global deformation due to air temperature changes, Journal of Civil Structural Health Monitoring, Springer, 2015. https://doi.org/10.1007/s13349-015-0124-9
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[13]. Y. L. Xu, B. Chen, C. L. Ng, K. Y. Wong, W. Y. Chan, Monitoring temperature effect on a long suspension bridge, Struct. Control Health Monit, 17 (2010) 632–653. https://doi.org/10.1002/stc.340
[14]. Y. Xia, B. Chen, X. Q. Zhou, Y. L. Xu, Field monitoring and numerical analysis of Tsing Ma uspension Bridge temperature behavior, Struct. Control Health Monit, 20 (2013) 560–575. https://doi.org/10.1002/stc.515
[15]. Y. Zhou, L. M. Sun, Z. J. Peng, Mechanisms of thermally induced deflection of a long-span cable-stayed bridge, Smart Struct. Syst, 15 (2015) 505–522. https://doi.org/10.12989/sss.2015.15.3.505.
[16]. Q. Bhatti, Structural health monitoring of single degree of freedom flexible structure having active mass damper under seismic load, Innovative Infrastruct, Solution, 3 (2018) 33. https://doi.org/10.1007/s41062-018-0139-2.
[17]. F. Treyssede, Finite element modeling of temperature load effects on the vibration of local modes in multi-able structures, J. Sound Vib, 413 (2018) 191–204. https://doi.org/10.1016/j.jsv.2017.10.022.
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[21]. Công ty tư vấn triển khai công nghệ & XDGT, Trường đại học Giao thông vận tải Hà Nội, Báo cáo chi tiết kết quả thử tải và kiểm định cầu Trần Thị Lý (Đà Nẵng), tháng 4/2013.
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Received
11/05/2022
Revised
03/06/2022
Accepted
14/06/2022
Published
15/06/2022
Type
Research Article
How to Cite
Đỗ Anh, V., Võ Duy, H., & Lê Văn, H. (1655226000). A study on the effect of temperature on structural deformation and cable-stays tension force of Tran-Thi-Ly cable-stayed bridge . Transport and Communications Science Journal, 73(5), 588-603. https://doi.org/10.47869/tcsj.73.5.11
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