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Fatigue Damage Monitoring, Assessment and Reinforcement Method in Steel Bridge

A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Sustainable Engineering and Science".

Deadline for manuscript submissions: closed (1 October 2023) | Viewed by 8475

Special Issue Editors


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Guest Editor
Department of Bridge Engineering, Southwest Jiaotong University, Chengdu 610031, China
Interests: fatigue monitoring and assessment of steel bridge
Department of Bridge Engineering, Southwest Jiaotong University, Chengdu 610031, China
Interests: fatigue monitoring and assessment of steel bridge; fatigue performance deterioration mechanism and reinforcement technology of steel bridges
Department of Civil, Environmental and Ocean Engineering, Stevens Institute of Technology, Hoboken, NJ 07030, USA
Interests: structural health monitoring; distributed sensing; machine learning; advanced cementitious composites
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Special Issue Information

Dear Colleagues,

Steel bridges are widely used around the world in different structural forms due to the main advantages of high strength, easy fabrication, and rapid construction. At the same time, fatigue cracks are often observed in steel bridges caused by the cyclic loads, initial defects, and residual stress, etc. The initiation and growth of fatigue cracks may lead to structure failure, or worse, sudden rupture. It is of great importance to monitor and assess the fatigue damage, and then propose the reinforcement method to ensure structural safety. The above-cited studies have great practical value and broad engineering application prospects.

In view of these latest developments, this Special Issue invites original articles and review papers to introduce the latest progress in any aspect of monitoring, evaluating, and reinforcing steel bridges in terms of technical principles and implementation processes.

Topics may include, but are not limited to, the following:

  • Case studies and field observations for fatigue damage in bridges;
  • The intelligent monitoring for steel bridge fatigue;
  • Fatigue damage assessment in bridge engineering;
  • Fatigue test of steel and steel–concrete composite structures;
  • Fatigue behavior of innovative structures and details;
  • Fatigue crack monitoring in bridge engineering;
  • Numerical modelling of fatigue damage processes;
  • Fatigue behavior-experimental or numerical studies;
  • Reinforcement method for fatigue crack.

Prof. Dr. Qinghua Zhang
Dr. Chuang Cui
Dr. Yi Bao
Guest Editors

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Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • bridge engineering
  • fatigue damage
  • monitoring
  • assessment
  • reinforcement

Published Papers (5 papers)

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Research

15 pages, 3109 KiB  
Article
Research on the Damage Diagnosis Model Algorithm of Cable-Stayed Bridges Based on Data Mining
by Jie Liu, Han Cheng, Qingkuan Liu, Hailong Wang and Jianqing Bu
Sustainability 2023, 15(3), 2347; https://doi.org/10.3390/su15032347 - 27 Jan 2023
Cited by 3 | Viewed by 1096
Abstract
To obtain an effective data mining method for cable-stayed bridge damage diagnosis, the algorithm of the cable-stayed bridge damage diagnosis model based on data mining was studied, and a data mining method is proposed. This method is oriented to the damage diagnosis of [...] Read more.
To obtain an effective data mining method for cable-stayed bridge damage diagnosis, the algorithm of the cable-stayed bridge damage diagnosis model based on data mining was studied, and a data mining method is proposed. This method is oriented to the damage diagnosis of cable-stayed bridges. After algorithm comparison, the support vector machine (SVM) and limit gradient-boosting (XGBoost) algorithms, with advantages in damage location and quantification, are combined and optimized to obtain the damage diagnosis model for cable-stayed bridges. First, a refined benchmark finite element model is established by Abaqus, and postprocessing data such as vibration frequency and modal curvature are used as a data mining dataset. Second, feature se-lection is conducted, and the damage-sensitive modal curvature change rate index is selected as the feature of data mining. Next, the SVM and XGBoost algorithms are optimized by grid and random search, and the optimized SVM and XGBoost algorithms are used to locate and quantify the damage. Finally, the damage diagnosis model for cable-stayed bridges is obtained. Taking a cable-stayed bridge as an example, the proposed method is applied and analyzed, and the results show the effectiveness of the proposed method. Full article
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16 pages, 5800 KiB  
Article
Fatigue Tests and Failure Mechanism of Rib-to-Deck Welded Joints in Steel Bridge
by Chuanbin Fan, Letian Da, Kangchen Wang, Shenyou Song and Huanyong Chen
Sustainability 2023, 15(3), 2108; https://doi.org/10.3390/su15032108 - 22 Jan 2023
Cited by 3 | Viewed by 1486
Abstract
The fatigue cracks of rib-to-deck welded joints in an orthotropic steel deck are one of the critical conundrums that restrict the sustainable development of steel bridges. Double-sided welded joints were achieved by introducing internal welding technology to overcome the initial “crack-like” manufacturing defects [...] Read more.
The fatigue cracks of rib-to-deck welded joints in an orthotropic steel deck are one of the critical conundrums that restrict the sustainable development of steel bridges. Double-sided welded joints were achieved by introducing internal welding technology to overcome the initial “crack-like” manufacturing defects at the welding roots of single-sided welded joints. Through the observation of the macro-section of the welded joint, the differences between single-sided welding, partial-penetration welding, and full-penetration welding in rib-to-deck welded joints are compared. Relying on the Shenzhen–Zhongshan link, the fatigue failure and mechanism of single-sided rib-to-deck welded joints are clarified by the nominal stress and structural stress methods, and those of double-sided welded joints were determined through fatigue tests. The fatigue strength of rib-to-deck welded joints is higher than the FAT90 of Chinese standard and the FAT C joints of American standard. The fatigue strength of double-sided rib-to-deck welded joints is significantly higher than that of single-sided welded joints. The fatigue strength of rib-to-deck welded joints is within a ± 2σ range of main S-N curves by the structural stress method. It is suggested to adopt the double-sided welded joints in practice, and to ensure that the penetration rate is beyond 80%. The trial data are limited, and further tests are needed to confirm the results. Full article
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22 pages, 9622 KiB  
Article
Research on the Dynamic Response of a Continuous Steel Box Girder Bridge Based on the ANSYS Platform
by Baitian Wang, Yudong Jia, Hongjuan Zhao, Simeng Wang, Zhengchuang Jin and Jinfeng Yang
Sustainability 2022, 14(17), 10638; https://doi.org/10.3390/su141710638 - 26 Aug 2022
Cited by 1 | Viewed by 1368
Abstract
Under the action of various dynamic loads, bridges will experience large deflections and stress. When the situation is difficult, it will affect the regular use of the bridge and even cause it to collapse suddenly. This article generated a sample of road surface [...] Read more.
Under the action of various dynamic loads, bridges will experience large deflections and stress. When the situation is difficult, it will affect the regular use of the bridge and even cause it to collapse suddenly. This article generated a sample of road surface irregularities based on the Chinese national standard. An ANSYS model was used to create the vehicle–bridge coupling model. In order to meet the actual engineering calculations, an essential but valuable analytical approach is presented here. The node coupling method established the time-varying vehicle axle coupling system. The moving tire force was applied to the axle coupling system. The ANSYS parametric design language was adopted to realize the process of the vehicle approach and exit of the bridge. Combined with the actual data of dynamic and static load experiments, the model’s accuracy was verified. The influence of different vehicle driving speeds, road irregularities, vehicle driving position, and vehicle driving state are analyzed in this paper. The vehicle speed had no significant influence on the displacement time-history and the force of the middle wheel of the vehicle at a specific driving position. The pavement grade significantly influenced the bridge’s displacement time-history and acceleration spectrum. Full article
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24 pages, 17472 KiB  
Article
Optimization Method of Temperature Measuring Point Layout for Steel-Concrete Composite Bridge Based on TLS-IPDP
by Jun Zhang, Da Wang, Shengtao Xiang, Yang Liu, Benkun Tan and Donghuang Yan
Sustainability 2022, 14(15), 9787; https://doi.org/10.3390/su14159787 - 08 Aug 2022
Viewed by 1376
Abstract
An optimization method of temperature measurement point layout for steel-concrete composite bridges based on the total least squares improved piecewise Douglas–Peucker (TLS-IPDP) algorithm was proposed to solve the problem that the traditional temperature measurement data cannot reflect the actual temperature gradient (TG) due [...] Read more.
An optimization method of temperature measurement point layout for steel-concrete composite bridges based on the total least squares improved piecewise Douglas–Peucker (TLS-IPDP) algorithm was proposed to solve the problem that the traditional temperature measurement data cannot reflect the actual temperature gradient (TG) due to the position of measurement points on different paths is not reasonable. The characteristic curves of TG for the most unfavorable period and annual period are extracted from the finite element model. The rationality of the proposed method is illustrated by two typical steel-concrete composite beams with steel plates and steel boxes. By improving the classical Douglas–Peucker (DP) algorithm, the TLS-IPDP algorithm proposed in this paper has a better approximation effect on the original data. Compared with the traditional temperature measuring point arrangement method, the TLS-IPDP algorithm optimized arrangement in this paper realized the measuring point arrangement with different variable spacing under different paths; the temperature gradient curve obtained was closer to the real temperature distribution, and had higher accuracy in the region with a large gradient. In addition, the proposed method has the function of manually specifying the location of feature points and reserving the required number. The optimized arrangement of measuring points can meet the requirements of measuring points number and measurement accuracy. The method presented in this paper can provide a useful reference for temperature data acquisition and sensor layout for health monitoring of steel-composite bridges. Full article
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19 pages, 7087 KiB  
Article
Fatigue Crack Propagation and Life Analysis of Stud Connectors in Steel-Concrete Composite Structures
by Da Wang, Benkun Tan, Shengtao Xiang and Xie Wang
Sustainability 2022, 14(12), 7253; https://doi.org/10.3390/su14127253 - 14 Jun 2022
Cited by 12 | Viewed by 2364
Abstract
To investigate the fatigue performance of the stud connectors of steel-concrete structures, fatigue crack propagation analysis and fatigue life calculation were carried out. Firstly, the finite element model with the initial crack based on linear elastic fracture mechanics (LEFM) was established, and the [...] Read more.
To investigate the fatigue performance of the stud connectors of steel-concrete structures, fatigue crack propagation analysis and fatigue life calculation were carried out. Firstly, the finite element model with the initial crack based on linear elastic fracture mechanics (LEFM) was established, and the parameter analysis of the stress intensity factors (SIFs) of the studs and cracks with different geometric sizes was performed. Then, the propagation with mixed-type fatigue crack and I-type fatigue crack of the stud were calculated, and the variation of effective SIFs with the fatigue crack depth was analyzed. Finally, the flow chart of stud fatigue life evaluation which considers crack initiation and stable propagation was presented, and the short stud of steel-UHPC composite structures was taken as an example and verified. The calculation results show that the fatigue crack propagation type and the initial crack have an obvious influence on the fatigue life of the stud. It has acceptable accuracy that the fatigue life of short stud in UHPC simulated by considering the crack initiation. The critical damage parameters are greatly affected by the fatigue stress amplitude, and the initiation life of fatigue crack can account for more than 90% of the total fatigue life. This paper can provide a reference for evaluating the fatigue performance of studs in steel-concrete composite structures. Accurate evaluation of the fatigue life of stud connectors conforms to the concept of sustainable development. Full article
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