Fatigue Performance Evaluation and Cold Reinforcement for Old Steel Bridges

Wang, Chunsheng; Wang, Yuzhu; Duan, Lan; Wang, Qianqian; Zhai, Musai

doi:10.1080/10168664.2019.1593069

Cited by 9 publications

(4 citation statements)

References 19 publications

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“…Yao et al (2019) studied the influence of stop-hole size and spatial position on the reinforcement effect of steel bridge fatigue cracking, and determined the stop-hole parameters with reinforcement effect based on the test and theoretical analysis. A cold maintenance method for microdamage or zero-damage of existing structures by means of assembly-type connections such as pasting, bolting or glue-bolting hybrid connection was proposed by Kinoshita et al (2019b), Wang et al (2019b) and Al-azzawi et al (2019). Izadi et al (2019) used a method for strengthening fatigue cracking of steel truss bridges with Fe-SMA, and verified its applicability and feasibility using fatigue test.…”

Section: Steel Bridge Fatiguementioning

confidence: 99%

Review of annual progress of bridge engineering in 2019

Zhao

Yuan

Wei

et al. 2020

ABEN

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Bridge construction is one of the cores of traffic infrastructure construction. To better develop relevant bridge science, this paper introduces the main research progress in China and abroad in 2019 from 13 aspects, including concrete bridges and the high-performance materials, the latest research on steel-concrete composite girders, advances in box girder and cable-supported bridge analysis theories, advance in steel bridges, the theory of bridge evaluation and reinforcement, bridge model tests and new testing techniques, steel bridge fatigue, wind resistance of bridges, vehicle-bridge interactions, progress in seismic design of bridges, bridge hydrodynamics, bridge informatization and intelligent bridge and prefabricated concrete bridge structures.

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Section: Steel Bridge Fatiguementioning

confidence: 99%

Review of annual progress of bridge engineering in 2019

Zhao

Yuan

Wei

et al. 2020

ABEN

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“…The structural reinforcement of existing metallic bridges is frequently done considering the replacement of old metallic elements by structural elements of current steel [38]. Wang et al [39] presented a fatigue performance study on ancient metallic bridges using reinforcement techniques based on the application of new steel plates through bonding or bolting. In this sense, the fatigue strength characterization and the identification of failure mechanisms of structural connections combining existing metallic plates and current steel plates deserves special attention, especially the definition of reliable S-N curves.…”

Section: Nomenclaturementioning

confidence: 99%

Fatigue experimental characterization of preloaded injection bolts in a metallic bridge strengthening scenario

Pedrosa

Correia

Rebelo

et al. 2021

Engineering Structures

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All over the world, the number of civil engineering structures, particularly bridges with long service periods, has been increasing. The most common evidences of damages are the presence of corroded metallic elements and cracks in structural details due to the fatigue phenomenon. A large number of cases were found in which fatigue cracks were detected in structural details, such as riveted connections. Different strategies can be implemented for repairing and strengthening operations of old metallic riveted bridges. However, the use of injection bolts has been considered as an alternative with important advantages. In this regard, it is essential to study their performance under fatigue loading. In this investigation, an experimental campaign has been performed to assess the fatigue strength of injection bolts by means of comparison with standard bolts. These fatigue tests are defined to be representative of a structural strengthening scenario of an old metallic bridge. Experimental results show that injection bolts contribute to significantly reduce the scatter in the data related to fatigue resistance. For double shear specimens, the characteristic curve proposed for connections with injection bolts presents a detail category with 15% higher value when compared to non-injected specimens. The beneficial effect is also verified in terms of slip deformation. For single shear specimens, the overall effect of the adhesive is not clear.

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“…Some of them have already exhibited fatigue problems caused by structural defects. Based on the above, research is conducted in three aspects regarding the adaptability of existing railway steel bridges to heavy hauls and strengthening measures (Sun, 2014; Li & Luo, 2013; Walbridge & Liu, 2018; Cui, Zhang, Bao, Kang, & Bu, 2018; Wang, Wang, Duan, Wang, & Zhai, 2019; Li & Zhang, 2019; Zhang & Li, 2017; Wang, 2016; Zhang & Sun, 2019; Liu & He, 2020; Wang, 2018; Guo & Xu, 2017; Li, 2020; Al-Karawi, 2023; Han, Zhao, & Zhang, 2022; Wallin, Leander, & Karoumi, 2011; Han et al. , 2022; Yu, Shan, Yuan, & Li, 2018; Xiao, Luo, Liu, & Wang, 2020):Overall analysis of the adaptability of existing steel bridge structures to heavy hauls.Evaluation of fatigue life for existing steel bridges.Study of strengthening measures for existing steel bridges.…”

Section: Introductionmentioning

confidence: 99%

Research on heavy-haul adaptive technology and strengthening measures for existing railway steel bridge

2023

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PurposeThis research addresses the diverse characteristics of existing railway steel bridges in China, including variations in construction age, design standards, structural types, manufacturing processes, materials and service conditions. It also focuses on prominent defects and challenges related to heavy transportation conditions, particularly low live haul reserves and severe fatigue problems.Design/methodology/approachThe study encompasses three key aspects: (1) Adaptability assessment: It begins with assessing the suitability of existing railway steel bridges for heavy-haul operations through comprehensive analyses, experiments and engineering applications. (2) Strengthening: To combat frequent crack defects in the vertical stiffener end structure of girder webs, fatigue performance tests and reinforcement scheme experiments were conducted. These experiments included the development of a hot-spot stress S-N curve for this structure, validating the effectiveness of methods like crack stop holes, ultrasonic hammering and flange angle steel. (3) Service life extension: Research on the cruciform welded joint structure (non-fusion transfer type) focused on fatigue performance over the long life cycle. This led to the establishment of a fatigue S-N curve, enhancing Chinese design codes.FindingsThe research achieved several significant outcomes: (1) Successful implementation of strengthening and retrofitting measures on a 64-m single-span double-track railway steel truss girder on an existing heavy-duty line. (2) Post-reinforcement, a substantial 26% to 32% reduction in live haul stress on bridge members was achieved. (3) The strengthening and retrofitting efforts met design expectations, enabling the bridge to accommodate vehicles with a 30-ton axle haul on the railway line.Originality/valueThis research systematically tackles challenges and defects associated with Chinese existing railway steel bridges, providing valuable insights into adaptability assessment, strengthening techniques and service life extension methods. Furthermore, the development of fatigue S-N curves and the successful implementation of bridge enhancements have practical implications for improving the resilience and operational capacity of railway steel bridges in China.

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Fatigue Performance Evaluation and Cold Reinforcement for Old Steel Bridges

Cited by 9 publications

References 19 publications

Review of annual progress of bridge engineering in 2019

Review of annual progress of bridge engineering in 2019

Fatigue experimental characterization of preloaded injection bolts in a metallic bridge strengthening scenario

Research on heavy-haul adaptive technology and strengthening measures for existing railway steel bridge

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