Study on improvement of the fatigue durability by filling of mortar in U-shaped rib of orthotropic steel deck

Tabata, Akiko; Aoki, Yasumoto; Takada, Yoshihiko; Onishi, H.; Matsui, S.

doi:10.1201/b10430-428

Cited by 6 publications

(3 citation statements)

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“…Kolstein installed stop hole on the fatigue crack hole, and bolted steel plate on the cracking region by the high tensile bolts [33]. Tabata developed an innovative method of retrofit OSD without the need for traffic restriction to eliminate fatigue cracks originating from the weld between the deck plate and U-shaped rib [34]. At present, retrofit method for orthotropic steel bridge deck mainly concentrate on mechanical repair or hot repair, the construction process is complex and is easy to bring new damage to the structure.…”

Section: Cold Retrofit Techniques For Osdsmentioning

confidence: 99%

Life-Cycle Cost Based Maintenance and Rehabilitation Strategies for Cable Supported Bridges

Cs¹,

Zhai²,

Ht³

et al. 2015

Volume 11 Number 3

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ABSTRACT:Initial cost was mainly considered in constructing a bridge in the past, whereas future payments such as the cost of strengthening or rehabilitation were neglected. This situation has brought numerous economic as well as social problems due to the lack of rational maintenance and rehabilitation strategies. Thus, it is necessary and urgent to develop appropriate bridge maintenance and rehabilitation strategies that not only meet serviceability criteria but also consider the life-cycle cost (LCC) optimization. This paper discusses major hazards of in-service cable supported bridges, including fatigue cracking of orthotropic steel decks, deterioration of cables, damage of main cables, hangers and expansion joints et al. Advanced maintenance and rehabilitation tools are introduced to save the life-cycle cost, acoustic emission monitoring technique and cold retrofit technique are detailed studied. A framework is provided for the strategies of maintenance and rehabilitation based on life-cycle cost. The framework takes into account of the safety, serviceability and sustainability during the lifetime of cable supported bridges.

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Section: Cold Retrofit Techniques For Osdsmentioning

confidence: 99%

Life-Cycle Cost Based Maintenance and Rehabilitation Strategies for Cable Supported Bridges

Cs¹,

Zhai²,

Ht³

et al. 2015

Volume 11 Number 3

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“…Liu et al [8] used L-shaped CFRP to strengthen the fatigue cracking area of the rib to deck joint of the OSD, and the results showed that the fatigue life of the OSD is increased by 3.18 times by this method. Tabata et al [9] proposed a reinforcement method of bolting U-shaped steel plates between ribs to strengthen the fatigue cracking area of the rib to deck joint. The results showed that this reinforcement method can reduce the stress of the rib to deck joint welding zone by 10%-40%.…”

Section: Introductionmentioning

confidence: 99%

Strengthening effects evaluation on fatigue damage of rib to deck joint in orthotropic steel deck

Xin

Liu

Correia

et al. 2023

Engineering Failure Analysis

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“…In recent years, fatigue cracking cases of steel bridge deck have occurred frequently, showing the characteristics of 'universality, early occurrence, multiple occurrence and reproducibility'. Scholars have made fruitful research on the fatigue crack reinforcement methods of steel bridge deck, and put forward a variety of fatigue crack reinforcement methods, including crack arrest hole method, welding repair method, local reinforcement method, combined system method and fabricated reinforcement method [10][11][12][13][14][15][16], as shown in Figure 2. The research content mainly focuses on the effect of reinforcement methods on the stress amplitude, stress amplitude and the reduction of stress intensity factor at fatigue crack tip and the inhibition effect of fatigue crack propagation are carried out.…”

Section: Introductionmentioning

confidence: 99%

Fatigue Performance of Rib-to-Deck Joints Strengthened With Internal Welding

2022

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"Rib-to-deck joints of orthotropic steel decks (OSDs) in steel bridges are susceptible to longitudinal fatigue cracking, which often results in considerable costs as well as traffic interruption. This paper numerically simulated the Crack II of rib-to-deck joint and analyzed the crack failure mode of the joint. To mitigate such cracking, a strengthening method using internal welding was investigated. The effects of initial crack size, internal weld size and crack depth on the stress intensity factor (SIF) of crack tip on rib-to-deck fatigue details were studied by finite element method. The finite element analysis demonstrated that the proposed method can significantly improve the detailed stress range of the weld root, lead to the transfer of crack development mode, and prolong the fatigue life of rib-to-deck joints. Numerical analysis validated the beneficial effect of strengthening measures on the stress intensity factors at crack tips. Calculation of stress intensity factors at crack tips resulted that the crack development law, and the application range of reinforcement method was analyzed. This study provided a reference to the design and application of internal welding in the strengthening of weld details in OSDs."

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Study on improvement of the fatigue durability by filling of mortar in U-shaped rib of orthotropic steel deck

Cited by 6 publications

References 0 publications

Life-Cycle Cost Based Maintenance and Rehabilitation Strategies for Cable Supported Bridges

Life-Cycle Cost Based Maintenance and Rehabilitation Strategies for Cable Supported Bridges

Strengthening effects evaluation on fatigue damage of rib to deck joint in orthotropic steel deck

Fatigue Performance of Rib-to-Deck Joints Strengthened With Internal Welding

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