Damage diagnosis and fretting wear performance analysis of short suspenders in cable-supported bridges

被引：9

作者：

Liu, Zhongxiang ^{[1
]}

Shi, Xueji ^{[1
]}

Guo, Tong ^{[2
]}

Yang, Jun ^{[3
]}

Correia, Jose ^{[4
,5
]}

机构：

[1] Southeast Univ, Sch Transportat, Nanjing 210096, Peoples R China

[2] Southeast Univ, Key Lab Concrete & Prestressed Concrete Struct, Minist Educ, Nanjing 210096, Peoples R China

[3] Suzhou Univ Sci & Technol, Coll Civil Engn, Suzhou 215009, Peoples R China

[4] Univ Porto, CONSTRUCT, Porto, Portugal

[5] Univ Porto, Fac Engn, Porto, Portugal

来源：

STRUCTURES | 2023年 / 56卷

关键词：

Damage diagnosis; Fretting wear; Frictional contact stress; Bridge suspender; Finite element analysis; Helical angle; FINITE-ELEMENT-ANALYSIS; MAIN CABLES; FATIGUE; WIRE; ROPE;

D O I：

10.1016/j.istruc.2023.104909

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Bridge suspenders with short length suffer from significant damage, usually following short service life, heavy casualties and property losses. In this paper, damage in the short suspenders was investigated macroscopically by inspection and field measurement. Inter-wire fretting wear due to different axial deformation and lateral shrinkage deformation of the wires with helical angle was confirmed as one of the damage cause. To investigate the fretting wear effect in the short suspender, refined FE models of the wire rope were generated by using parametric modeling method. Furthermore, inter-wire deformations and contact stresses were simulated and analyzed. Investigation of damage mechanism and fretting wear performance analysis of the short suspender contributes to the understanding of damage mechanism and the service safety of bridge cables.

引用

页数：10

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