Work

Identification of cable tension of long-span cable-stayed bridges during super typhoons: A case study

Year: 2025

Type: conference-paper

Abstract: Cables have currently surpassed lengths of 570 meters on long-span cable-stayed bridges, potentially resulting in large amplitude vibrations in complex engineering situations especially under typhoons. Therefore, identification of time-varying cable tension during super typhoon is of great significance for ensuring the systemic safety of bridges. To address this issue, this paper aims to track the time-varying tension of cables during the typhoon event. An algorithm is utilized to extract the variation trend of typhoon-induced tension based on vibration theory. Structural health monitoring data of a long-span cable-stayed bridge during a super typhoon is taken as a case to verify the algorithm. The instantaneous fluctuations in tension of six cables are clearly reproduced. Meanwhile, the other monitoring data, including stress and structural displacement, is synchronously displayed to show the correlation of monitoring parameters. The results show that the proposed method has the potential to real-time identify and assess the cable tension of long-span cable-stayed bridges under super typhoons.

DOI: 10.58286/31060

Authors: Xiangming Xu, Xin Zhang, Jiayi Peng, Qiang Wang, Maosen Cao

Institutions: Nanjing University of Posts and Telecommunications, Hohai University

Language: English

Topic: Structural Health Monitoring Techniques

Subfield: Civil and Structural Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Industry, innovation and infrastructure

Open Access status: gold

Funders: Nanjing University of Posts and Telecommunications, Nanjing University

OpenAlex ID: W4409730555