Fatigue Evaluation of Rib-to-Deck Welded Joints of Orthotropic Steel                    Bridge Deck

Ya, Samol; Yamada, Kentaro; Ishikawa, Toshiyuki

doi:10.1061/(asce)be.1943-5592.0000181

Cited by 160 publications

(44 citation statements)

References 6 publications

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“…Therefore, several studies have been conducted to investigate the mechanism involved in fatigue crack initiation and propagation. [11][12][13]…”

Section: R E V I E W O F N D T T E C H N I Q U E S E M P L O Y E D F mentioning

confidence: 99%

Remote nondestructive evaluation technique using infrared thermography for fatigue cracks in steel bridges

Sakagami

2015

Fatigue Fract Eng Mat Struct

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Long‐standing infrastructure is subject to structural deterioration. In this respect, steel bridges suffer fatigue cracks, which necessitate immediate inspection, structural integrity evaluation or repair. However, the inaccessibility of such structures makes inspection time consuming and labour intensive. Therefore, there is an urgent need for developing high‐performance nondestructive evaluation (NDE) methods to assist in effective maintenance of such structures. Recently, use of infrared cameras in nondestructive testing has been attracting increasing interest, as they provide highly efficient remote and wide area measurements. This paper first reviews the current situation of nondestructive inspection techniques used for fatigue crack detection in steel bridges, and then presents remote NDE techniques using infrared thermography developed by the author for fatigue crack detection and structural integrity assessments. Furthermore, results of applying fatigue crack evaluation to a steel bridge using the newly developed NDE techniques are presented.

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“…Therefore, several studies have been conducted to investigate the mechanism involved in fatigue crack initiation and propagation. [11][12][13]…”

Section: R E V I E W O F N D T T E C H N I Q U E S E M P L O Y E D F mentioning

confidence: 99%

Remote nondestructive evaluation technique using infrared thermography for fatigue cracks in steel bridges

Sakagami

2015

Fatigue Fract Eng Mat Struct

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“…Extensive experimental studies have been carried out to understand the fatigue behaviours of rib‐to‐deck welded joint . Figure shows the two test models commonly used in fatigue testing.…”

Section: Introductionmentioning

confidence: 99%

“…Figure shows the two test models commonly used in fatigue testing. The single weld (SW) model with a deck plate and a partial U‐rib was loaded using a mass vibrator . The SW model was simulated as a cantilever beam by anchoring one end of the deck plate to a rigid block (Figure A).…”

Section: Introductionmentioning

confidence: 99%

Rib loading effects on weld root fatigue failure modes at rib‐to‐deck welded joint

Luo

Zhang

Bao

2020

Fatigue Fract Eng Mat Struct

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The service life of orthotropic steel decks is dependent on the fatigue resistance of rib-to-deck welded joints, which is often tested using two kinds of experimental models in terms of the rib loading condition. Different weld root fatigue failure modes have been observed in the different models, but the role of rib loading remains unclear. This paper aims to clarify the effect of rib loadings on the weld root fatigue failure modes at rib-to-deck welded joints. The loadings are decomposed into the deck loadings and rib loadings according to the principle of superposition. Formulae of the weld root notch stress intensity factors and T-stress under rib loadings are developed by multiparameter regression analysis and subsequently used for the local stress analysis. The fatigue failure modes determined from the local stress field agree well with the experimental results. The results reveal that the weld root failure modes depend on the rib loadings but are independent of the weld geometries. The averaged strain energy density (SED) that can capture both weld geometry and loading condition effects is used to correlate the fatigue test data of different weld root failure modes. The SED is capable of evaluating the fatigue strength of the rib-to-deck welded joint failed by different weld root failure modes with a narrow scatter band. K E Y W O R D Sfatigue failure mode, fatigue test model, local stress field, notch stress intensity factor, weld geometry

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“…Considerable research has been performed to reveal the mechanisms of fatigue cracking in OSDs by investigating the design (Connor & Fisher, 2006;Kozy, Connor, Paterson, & Mertz, 2011;Nader & Baker, 2014;Wang, Feng, & Duan, 2009) and fabrication procedures (Sim, Uang, & Sikorsky, 2009;Wolchuk, 2014;Ya, Yamada, & Ishikawa, 2011). Adding an extra concrete layer results in decreased traffic-induced stress in some fatigue-prone points of OSDs (Walter, Olesen, Stang, & Vejrum, 2007), and reduced stress leads to a diminished risk of fatigue cracking.…”

Section: Introductionmentioning

confidence: 99%

Retrofit of an orthotropic steel deck with compact reinforced reactive powder concrete

Cao

Shao

Zhang

et al. 2015

Structure and Infrastructure Engineering

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Compact reinforced reactive powder concrete (CRRPC) was proposed to retrofit deteriorated asphalt overlays and to strengthen orthotropic steel deck (OSD) bridges. The resultant OSD-CRRPC composite deck is also referred to as a lightweight composite deck (LWCD) system. This paper provides experiences and lessons learned from the first application of CRRPC to retrofit the deficient asphalt overlay of an existing steel bridge in China. The paper includes information relating to finite element (FE) model analyses, a fatigue loading test, construction processes and a field measurement. FE analyses revealed that a 50-mm CRRPC layer decreased the vehicle-induced stresses in the OSD by 34 -83% relative to an OSD with an 80-mm asphalt overlay. As a result, the fatigue life of the OSD could be extended significantly. The static and fatigue safeties of CRRPC were proved by comparing the predicted and experimental stresses, and field construction demonstrated the feasibility of the proposed system. CRRPC developed no shrinkage cracks after hot-steam treatment in field application. In addition, a field measurement verified that CRRPC outperformed an asphalt overlay in reducing the vehicle-induced stresses in the OSD. The results demonstrate the safety and feasibility of retrofitting and strengthening OSD bridges with CRRPC.

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Fatigue Evaluation of Rib-to-Deck Welded Joints of Orthotropic Steel Bridge Deck

Cited by 160 publications

References 6 publications

Remote nondestructive evaluation technique using infrared thermography for fatigue cracks in steel bridges

Remote nondestructive evaluation technique using infrared thermography for fatigue cracks in steel bridges

Rib loading effects on weld root fatigue failure modes at rib‐to‐deck welded joint

Retrofit of an orthotropic steel deck with compact reinforced reactive powder concrete

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