Case study on performance monitoring and stability analysis of Baishihu suspension bridge and side slope
The main structure of the Baishihu suspension bridge was connected to the anchor foundations by three main steel cables. The wooden pedestrian deck was fixed to the main steel cables using steel beams and was stabilized by two stabilizing cables. The stabilizing cables and bridge body were joined by 44 steel connecting rods. Therefore, the slope stability at the anchorage foundations of the main steel cables, as well as the performance monitoring and analysis of the main steel cables and stabilizing cables, are critical to the overall performance of the suspension bridge. This paper discusses the performance monitoring and analysis of the steel cable deflection and cable strength for this bridge, as well as the main considerations and results of the stability analysis of the bridge abutments and side slopes of the two banks. Water-level observation wells, inclinometers, and tiltmeters monitoring were used to record reference data for the analysis of the slope stability performance. Additionally, the three-dimensional dynamic analysis program VFIFE was used to analyze the deformation and motion of the bridge. The final steady-state results were used to compare the static design value and monitoring data. The dynamic response before the final steady state was also observed.
This work is licensed under a Creative Commons Attribution 4.0 International License.
Brownjohn, J., Dumanoglu, A., & Taylor, C. (1994). Dynamic investigation of a suspension footbridge. Engineering Structures, 16(6), 395–406. https://doi.org/10.1016/0141-0296(94)90054-X
Carpenter, J. R. (1986). STABL5/ PC STABL5 user manual (Joint Highway Research Project JHRP-86/14). School of Civil Engineering, Purdue University.
Chen, S. K. (2011). Analysis of the nonlinear behavior of bridge by the vector form intrinsic finite element method [PhD thesis]. Department of Civil Engineering, National Central University, Chung-li, Taiwan.
Duan, Y. F., He, K., Zhang, H. M., Ting, E. C., Wang, C. Y., Chen, S. K., & Wang, R. Z. (2014). Entire-process simulation of earthquake-induced collapse of a Mockup cable-stayed bridge by vector form intrinsic finite element (VFIFE) Method. Advances in Structural Engineering, 17(3), 347–360. https://doi.org/10.1260/1369-4318.104.22.1687
Lee, C. R. (2015). Nonlinear dynamic analysis of suspension bridge by the VFIFE method [Master’s thesis]. Department of Civil Engineering, National Central University, Chung-li, Taiwan.
Ministry of Transport and Communications of the Republic of China. (2009). Code for design of highway and bridges.
Sen, P. (2018). A method of internal force estimation and dynamic analysis for suspension footbridges [Master’s thesis]. Department of Civil Engineering, National Central University, Chung-li, Taiwan.
Shih, J. Y., Wang, C. Y., & Wang, R. Z. (2012). Dynamic analysis of the vehicle-track-bridge interaction using vector form intrinsic element method. In Proceedings of the 1st International Workshop on High-Speed and Intercity Railways (pp. 249–259). Springer. https://doi.org/10.1007/978-3-642-27963-8_24
Ting, E. C., Shih, C., & Wang, Y.-K. (2004a). Fundamentals of a vector form intrinsic finite element: Part I. Basic procedure and a plane frame element. Journal of Mechanics, 20(2), 113–122. https://doi.org/10.1017/S1727719100003336
Ting, E. C., Shih, C., & Wang, Y.-K. (2004b). Fundamentals of a vector form intrinsic finite element: Part II. plane solid elements. Journal of Mechanics, 20(2), 123–132. https://doi.org/10.1017/S1727719100003348
Ting, E. C., Duan, Y. F., & Wu, D. (2012). Vector mechanics of structures. China Science Publishing & Media Ltd.
Wang, R. Z. (2005). Vector form motion analysis of structure [PhD thesis]. Department of Civil Engineering, National Central University, Chung-li, Taiwan.