Fatigue cracking of welded railway bridges: A review

Alencar, Guilherme; Jesus, Abílio M.P. De; Silva, José Guilherme S. da; Calçada, Rui

doi:10.1016/j.engfailanal.2019.05.037

Cited by 64 publications

(16 citation statements)

References 48 publications

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“…Research in the 20 th and the 21 st century mainly focused on understanding the failure mechanisms and providing design rules. Starting from the 1840s until the 1990s however, real fatigue problems occurring in structures were compiled and carefully studied, as in [2,3,80]. Fatigue was identified as one of the most important design criteria for orthotropic deck and girder steel bridges, especially when they include welded details [3].…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical fatigue assessment of duplex welded transversal stiffeners

Karabulut

Lombaert

Debruyne

et al. 2020

International Journal of Fatigue

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Fatigue is mostly the governing design criterion in girder steel bridges due to the presence of critical welded details. In this research, the hot spot stresses in welded cruciform duplex stainless steel joints are measured experimentally using digital image correlation as well as traditional strain gauges. They are also computed via FEM. The deduced fatigue lives are then compared to each other as well as to small-scale cyclic test results and to a series of literature data on similar welded details. The comparison highlights very consistent results and demonstrates applicability of the hot spot stress method to welded duplex details.

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Section: Introductionmentioning

confidence: 99%

Experimental and numerical fatigue assessment of duplex welded transversal stiffeners

Karabulut

Lombaert

Debruyne

et al. 2020

International Journal of Fatigue

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show abstract

“…Diketahui bahwa kerusakan kelelahan pertama pada superstruktur jembatan jalan raya, tergantung pada intensitas lalu lintas, mulai muncul setelah sekitar 25-30 tahun beroperasi dan kemudian jumlahnya meningkat hampir secara eksponensial [2]. Karena penuaan material yang dikombinasikan dengan peningkatan beban lalu lintas, kelelahan struktural semakin menjadi perhatian penting dalam kerusakan jembatan [3].…”

Section: Pendahuluanunclassified

Pengaruh Korosi Terhadap Kegagalan Logam pada Jembatan : Literature Review

Kurniasari

Amalia

2022

J.Mek.Ter.

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Jembatan baja digunakan sebagai bahan konstruksi karena sifat ringan, ketahanan, dan kemu-dahannya untuk dirakit. Namun kegagalan pada jembatan baja meningkat secara eksponensial. Kelelahan struktural, penuaan material yang dikombinasikan dengan peningkatan beban lalu lintas, menjadi penyebab dalam kerusakan jembatan, dimana dalam hal ini korosi menjadi baha-san utama dari penurunan kualitas dan kegagalan pada jembatan. Pada hasil literature review be-berapa paper, didapatkan hasil bahwa dari pengamatan visual pada baja jembatan di lingkungan air laut, sungai, dan di lingkungan sekitar limbah toilet. kerusakan struktur jembatan yang disebabkan korosi dari ion klorida pada air laut lebih tinggi dibanding dengan korosi pada ling-kungan sungai dan cairan limbah di kereta api. Laju korosi yang terjadi pada lingkungan laut lebih tinggi dibanding pada lingkungan sungai dan cairan limbah toilet. Pada lingkungan korosif, ion klorida atau sulfat akan berdifusi ke baja melalui beton struktur jembatan.

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“…Sause et al [ 14 ] provided the design S - N curve and fatigue limit of uncorroded corrugated web I-girders. Vertical web stiffener to deck plate welded joints, as a typical detail in steel box girder bridges, are vulnerable to fatigue cracking [ 15 , 16 ]. When wheel loads act on them, bending stress is generated in the deck plate and stress concentration is caused at the end weld.…”

Section: Introductionmentioning

confidence: 99%

Fatigue Tests and Analysis on Welded Joints of Weathering Steel

et al. 2022

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To investigate the fatigue performance of vertical web stiffener to deck plate welded joints in weathering steel box girders, six specimens of the weathering steel (WS) Q345qNH, four specimens of WS Q420qNH, and four specimens of the plain carbon steel (CS) Q345q for comparison were tested by a vibratory fatigue testing machine, considering different steel grades, yield strengths, stiffener plate thicknesses, and weld types. The fatigue strength was evaluated based on S-N curves and the crack propagation was analyzed by linear elastic fracture mechanics (LEFM). The results show that the fatigue crack of the welded joints was initiated from the end weld toe of the deck plate and subsequently propagated both along the thickness of the deck plate and in the direction perpendicular to the stiffener plate. The fatigue crack initiation and propagation life of WS Q345qNH specimens were longer than those of CS Q345q specimens. The fatigue crack propagation life of WS Q345qNH specimens was longer than that of WS Q420qNH specimens, while the initiation life bore little relationship to the yield strength. Increasing the stiffener plate thickness effectively delayed crack initiation and slowed down its propagation. Compared with fillet welds, full penetration welds extended the fatigue crack propagation life, while no significant improvement was implied for the initiation life. The WS and CS specimens could be classified as having the same fatigue strengths by nominal stress, hot spot stress, and effective notch stress approaches, which were FAT 50, FAT 100, and FAT 225, respectively. Meanwhile, their material constants for LEFM were relatively close to each other.

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Fatigue cracking of welded railway bridges: A review

Cited by 64 publications

References 48 publications

Experimental and numerical fatigue assessment of duplex welded transversal stiffeners

Experimental and numerical fatigue assessment of duplex welded transversal stiffeners

Pengaruh Korosi Terhadap Kegagalan Logam pada Jembatan : Literature Review

Fatigue Tests and Analysis on Welded Joints of Weathering Steel

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