Analysis of Influence of Cable Clamp Slippage on Internal Force and Alignment of Main Cable

Authors

• ZHU Kun, CCCC Second Highway Consultants Co ., Ltd., Wuhan , Hubei 430052 , ChinaFollow
• LIAO Dinghui, School of Civil Engineering and Architecture , Wuhan University of Technology , Wuhan , Hubei 430070 , China
• HU Chengze, CCCC Second Highway Consultants Co ., Ltd., Wuhan , Hubei 430052 , China
• SHEN Heshun, China Railway Siyuan Survey and Design Group Co ., Ltd., Wuhan , Hubei 430063 , China
• CAO Hongyou, School of Civil Engineering and Architecture , Wuhan University of Technology , Wuhan , Hubei 430070 , ChinaFollow

Corresponding Author

曹鸿猷，男，博士，教授.E-mail：caohongyou@whut.edu.cn

Abstract

To investigate the influence of cable clamp slippage on alignment and internal force of the main cable, a theoretical analysis method based on node coordinates of the main cable after cable clamp slippage was proposed in this paper. Based on segmented catenary theory, the influence of hanger inclination caused by hanger slippage on the horizontal force of the main cable was considered. The segmental cable element of the main cable was equivalently expressed as expressions of hanger tension and unstressed length. With total unstressed length kept constant as a control condition, the horizontal force of the main cable was iteratively updated to solve convergent alignment, segmental unstressed length, and hanger tension of the main cable. By taking a single-tower self-anchored suspension bridge as an example, a parametric analysis was carried out to study the sensitivity of node coordinate error to control condition, and a quantitative analysis on the location and quantity of main cable slippage was conducted. The variation characteristics of internal force and alignment of cable structure after slippage were identified, and the mechanical performance of the structure under slippage conditions was qualitatively evaluated.

Publication Date

6-27-2026

DOI

10.14048/j.issn.1671-2579.2026.03.015

First Page

133

Last Page

141

Submission Date

June 2026

Recommended Citation

Kun, ZHU; Dinghui, LIAO; Chengze, HU; Heshun, SHEN; and Hongyou, CAO (2026) "Analysis of Influence of Cable Clamp Slippage on Internal Force and Alignment of Main Cable," Journal of China & Foreign Highway: Vol. 46: Iss. 3, Article 15.
DOI: 10.14048/j.issn.1671-2579.2026.03.015
Available at: https://zwgl1980.csust.edu.cn/journal/vol46/iss3/15

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