Selection and design of anchorage for suspension bridge in downhill area under complex geological conditions

Authors

CHEN Yongliang, Yunnan Transportation Planning and Design Institute Co., Ltd., Kunming, Yunnan 650041, China
HE Shiyong, State Key Laboratory of Mountain Bridge and Tunnel Engineering, Chongqing 400074, China; Chongqing Jiaotong University, Chongqing 400074, China
XIA Zhixian, Yunnan Transportation Planning and Design Institute Co., Ltd., Kunming, Yunnan 650041, China
WU Wenxiang, Yunnan Transportation Planning and Design Institute Co., Ltd., Kunming, Yunnan 650041, China

Abstract

Due to the complexities of design and construction, long-span single-tower suspension bridges are rarely applied in practice. The main bridge of the Jinsha River Bridge at Tiger Leaping Gorge adopts a 766 m single-span single-tower steel truss suspension bridge. On the Lijiang anchorage side, complex geological conditions posed significant challenges due to geological structures, while the reservoir level of the planned hydropower station created adverse hydrological conditions for waterproofing and durability of the anchorage system. The selection of an appropriate anchorage type was therefore particularly challenging. This paper first details the selection process for anchorage under complex geological conditions. It then introduces the structural design of the anchorage and the high-strength steel rod anchoring system. Finally, it outlines the main steps and key outcomes of anchorage calculations.

Publication Date

5-11-2023

DOI

10.14048/j.issn.1671-2579.2023.02.019

First Page

107

Last Page

111

Submission Date

March 2025

Recommended Citation

Yongliang, CHEN; Shiyong, HE; Zhixian, XIA; and Wenxiang, WU (2023) "Selection and design of anchorage for suspension bridge in downhill area under complex geological conditions," Journal of China & Foreign Highway: Vol. 43: Iss. 2, Article 19.
DOI: 10.14048/j.issn.1671-2579.2023.02.019
Available at: https://zwgl1980.csust.edu.cn/journal/vol43/iss2/19

Reference

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