Analysis of damage identification of self-anchor suspension bridge

• Autorzy: Zheng Xilong , Guan Di , Wang Yiqiang

Identyfikatory

DOI

10.24425/ace.2025.155106

• Języki publikacji: EN

Abstrakty

EN

For the self-anchored suspension bridge with large span and complex structure, based on the finite element analysis and combined with the bridge load test, the stress characteristics before and after damage are analyzed in detail. For the main girder of the main vulnerable component, a variety of identification methods based on the existing dynamic damage identification methods are selected for damage identification comparison and analysis. According to the identification results of each method, an effective method for damage monitoring of the main girder of the bridge is determined. For the main girder of the vulnerable member of the self-anchored suspension bridge, according to the stress characteristics of each section and the position relationship with the assumed dynamic sensor, five damaged girder sections are set up, and each damage is assigned three levels of 10%, 20% and 40%. Based on the results of single damage and combined damage of these five girder sections, the indexes suitable for main girder damage identification are found out from various existing damage identification indexes. The Cross Modal Strain Energy (CMSE) index is selected as the main damage monitoring method for self-anchored suspension bridges because of its full damage identification ability and good noise resistance.

• Wydawca: Komitet Inżynierii Lądowej i Wodnej PAN ; Politechnika Warszawska, Wydział Inżynierii Lądowej
• Czasopismo: Archives of Civil Engineering
• Rocznik: 2025
• Tom: Vol. 71, nr 3
• Strony: 385--398
• Opis fizyczny: Bibliogr. 16 poz., il., tab.

Twórcy

autor

Zheng Xilong

• Harbin University, School of Intelligent and Architectural Engineering, Harbin, China

• https://orcid.org/0000-0001-5571-667X

autor

Guan Di

• Harbin University, School of Intelligent and Architectural Engineering, Harbin, China

• https://orcid.org/0009-0006-2965-806X

autor

Wang Yiqiang

• Liaoning Jiaotou Maintenance Engineering Co., Ltd, General Affairs Department, China

• https://orcid.org/0009-0005-7483-4088

Bibliografia

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