Research on Optimizing the Partition Plate Design for the Super-tall Piers of Partial Cable-stayed Bridges in Mountainous Areas

DOI

10.2991/978-94-6463-564-5_11How to use a DOI?

Keywords

partial cable stayed bridge; super high pier; diaphragm; mediastinal plate; stability

Abstract

Due to the topographical constraints in mountainous areas, hollow thin-walled high piers are typically employed for highway bridges. To enhance the stability of these high piers, both transverse and vertical diaphragms are usually installed, which, however, increases construction difficulty and reduces efficiency. To address this issue, this study investigates the impact of transverse and vertical diaphragm placement on the stability of hollow thin-walled high piers. Using Midas Civil and Midas FEA finite element software, the study examines a low-tower cable-stayed bridge currently under construction. The analysis focuses on the internal forces at the pier top and the effects of wind load during the maximum cantilever stage. The results indicate that transverse diaphragms have a minimal effect on the overall stability of hollow thin-walled piers, primarily affecting local stability. Therefore, reducing the number of transverse diaphragms can facilitate construction. Similarly, vertical diaphragms also have a minimal effect on the overall stability, mainly influencing local stability. Increasing the wall thickness can enhance the overall stability of the piers.

Copyright

© 2024 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Shaohui Xiong
AU  - Lu Kuang
AU  - Xuefeng Dou
AU  - Zuoqiao You
AU  - Chaojie Miao
PY  - 2024
DA  - 2024/10/31
TI  - Research on Optimizing the Partition Plate Design for the Super-tall Piers of Partial Cable-stayed Bridges in Mountainous Areas
BT  - Proceedings of the 2024 International Conference on Civil Engineering Structures and Concrete Materials (CESCM 2024)
PB  - Atlantis Press
SP  - 96
EP  - 109
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-564-5_11
DO  - 10.2991/978-94-6463-564-5_11
ID  - Xiong2024
ER  -