Temperature effect on cable force of a special-shaped tied-arch bridge

Liming Zhu; Tailei Chen; Lingkun Chen; Xiaojian Han; Wonsun King; Lu Wang; Chencheng Zhai; Yuan Tian

doi:10.1016/j.heliyon.2022.e11253

Temperature effect on cable force of a special-shaped tied-arch bridge

Heliyon. 2022 Oct 26;8(11):e11253. doi: 10.1016/j.heliyon.2022.e11253. eCollection 2022 Nov.

Authors

Liming Zhu¹, Tailei Chen¹, Lingkun Chen^{2

3

4}, Xiaojian Han⁵, Wonsun King⁶, Lu Wang², Chencheng Zhai², Yuan Tian⁷

Affiliations

¹ College of Transportation Science & Engineering, Nanjing Tech University, Nanjing, 211800 Jiangsu China.
² College of Architecture Science and Engineering, Yangzhou University, Yangzhou, 225127, Jiangsu, China.
³ Department of Civil and Environmental Engineering, University of California, Los Angeles, 90095, CA, USA.
⁴ School of Civil Engineering, Southwest Jiaotong University, Chengdu, 610031, Sichuan, China.
⁵ College of Civil Engineering, Nanjing Tech University, Nanjing, 211800, Jiangsu, China.
⁶ Department of Construction Engineering, Chaoyang University of Technology, Taiwan, 413, China.
⁷ Transportation Technology Development Promotion Center, China Academy of Transportation Sciences, Beijing, 100029, China.

Abstract

In this study, on-site monitoring was used to obtain the temperature field distribution and cable force values of the bridge at various times, the temperature change pattern of the bridge elements, the temperature sensitivity of the cable force of different parts of the bridge, and the trend of the cable force under temperature load were all analyzed. The static response of the wires was studied under various operating circumstances. The total cable force of the bridge is inversely related to the temperature rise and fall, and the temperature sensitivity of the cable force in different parts of the bridge is different under the same temperature effect. The change in cable force is uneven. They vary according to the loading circumstances. This project's cable force changes are the most substantial and consistent with observed circumstances and should be appropriately considered in comparable projects. Thermal impacts must be addressed in strand cable safety design.

Keywords: Cable force; Monitoring test; Special-shaped tied-arch bridge; Temperature.