Multiscale Numerical Modeling of Steel Bridge Deck Pavements Considering Vehicle–Pavement Interaction

Chen, Leilei; Qian, Zhendong; Wang, Jiangyang

doi:10.1061/(asce)gm.1943-5622.0000461

Cited by 30 publications

(15 citation statements)

References 9 publications

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“…The overall and local deformations of long-span steel box girder bridges are much larger than those of cement concrete bridges because of the differences in bridge structure design and materials used [1]. Therefore, the stress state of orthotropic steel bridge deck (OSBD) pavement of long-span steel box girder bridges is more complex than that of cement concrete bridges or traditional asphalt pavement [2]. In addition, due to the high thermal conductivity of steel, the temperature of steel deck pavement in summer is much higher than other pavement structures.…”

Section: Introductionmentioning

confidence: 99%

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Fatigue Cracking Resistance of Engineered Cementitious Composites (ECC) under Working Condition of Orthotropic Steel Bridge Decks Pavement

Zhao

Jiang

et al. 2019

Applied Sciences

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Featured Application: Fatigue cracking resistance of engineered cementitious composites under working condition of orthotropic steel bridge decks pavement.Abstract: In order to investigate the fatigue cracking resistance of engineered cementitious composites (ECC) used in in total life pavement, the semi-circular bending (SCB) test and improved three-point bending fatigue test (ITBF) were utilized in this study. The digital image correlation (DIC) method was also utilized to track the surface strain fields of specimens during the SCB test. X-ray computed tomography (CT) and digital image processing (DIP) technologies were applied to measure the internal-crack distribution of the ITBF specimen. The results of the SCB test showed that the fatigue cracking damage process of ECC can be divided into three stages and that the cracking stable propagating stages occupied the main part, which indicates that ECC has excellent ductility and toughness and could work very well with existing cracks. The ITBF results showed that the fatigue cracking resistance of ECC was better than epoxy asphalt concrete (EAC). In addition, the internal-crack distribution along the depth direction of the ITBF specimen could be presented well by the image pixel statistical (IPS) method based on CT scanning of image slices. It could be found that multiple cracks propagate simultaneously in ECC, instead of a single crack, under the OSBD pavement working condition.

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Section: Introductionmentioning

confidence: 99%

“…2 and stage III could be calculated. The loading cycles of each fatigue cracking stage could be obtained as shown inTable 2.…”

mentioning

confidence: 99%

Fatigue Cracking Resistance of Engineered Cementitious Composites (ECC) under Working Condition of Orthotropic Steel Bridge Decks Pavement

Zhao

Jiang

et al. 2019

Applied Sciences

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“…Multiscale approaches have been successfully implemented in a number of concrete applications such as material characterization [8][9][10] or structural evaluation in ordinary components, e.g., beams [11,12] or L-shaped slabs [13,14]. Nevertheless, its application in large concrete structures (e.g., bridges, pavements) is more recent, see for instance references [15,16]. It is within this new scenario that we present an application of multiscale analysis in large concrete structures, namely the numerical evaluation of the shear strength of dry joints between two segments in a post-tensioned concrete box girder.…”

Section: Introductionmentioning

confidence: 99%

Multiscale Analysis of the Influence of Steel Fiber Reinforcement on the Shear Strength of Post-Tensioned Dry Joints

et al. 2020

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In this work we follow a multiscale methodology to characterize the structural performance of post-tensioned steel fiber-reinforced concrete dry joints. At the material level, we use an experimentally validated lattice-particle model whose input parameters are the properties of the different phases themselves (i.e., mortar, aggregates, fibers) and mixing information. This model is used to obtain the mechanical properties used in the structural-level simulations of the joints in terms of constitutive laws. The structural analyses are performed using the concrete damage plasticity model, which allows us to quantify the effect of fiber addition on the shear strength of the dry joints and their ductility. Our simulations agree well with other macroscopic models in the case of plain concrete and show, once again, that the American Association of State Highway Transportation Officials (AASHTO) code overestimates the nominal shear capacity of multiple-keyed joints. Regarding the fiber addition, we observe that it promotes an important increase in the shear capacity, but the prestress level is still more relevant in this sense. Based on our simulations, we propose an updated shear capacity estimate accounting for the fiber volume fraction. Finally, a clear increase in the ductility of the joint is observed when the fiber volume content is increased.

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“…Recently a number of theory research and modeling efforts have been devoted to studying multiscale modeling. Multiscale modeling was usually defined as the integrated numerical process of transferring mechanical and chemical response between lower scale and higher scale [16,17]. A significant advantage of multiscale modeling is optimizing computing loading and enhancing the precision.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study on Diffusion of Chloride and Induced Rebar Corrosion by Two-Dimensional Multiscale Approach

Pang

et al. 2018

Modelling and Simulation in Engineering

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Modeling approach for mesoscopic model of concrete depicting mass transportation and physicochemical reaction is important since there is growing demand for accuracy and computational efficiency of numerical simulation. Mesoscopic numerical simulation considering binder, aggregate, and interfacial transition zone (ITZ) generally produces huge number of DOFs, which is inapplicable for full structure. In this paper, a two-dimensional multiscale approach describing three-phase structure of concrete was discussed numerically. An effective approach generating random aggregate in polygon based on checking centroid distance and intersection of line segment was introduced. Moreover, ITZ elements were built by parallel expanding the edge of aggregates on inner side. By combining mesoscopic model including full-graded aggregate and macroscopic model, cases related to diffusivity and width of ITZ, volume fraction, and grade of aggregate were studied regarding the consideration of multiscale compensation. Result clearly showed that larger analysis model in multiscale model expanded the diffusion space of chloride ion and decreased chloride content in front of rebar. Finally, this paper addressed some noteworthy conclusions about the chloride distribution and rebar corrosion regarding the configuration of rebar diameter, concrete cover, and exposure period.

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Multiscale Numerical Modeling of Steel Bridge Deck Pavements Considering Vehicle–Pavement Interaction

Cited by 30 publications

References 9 publications

Fatigue Cracking Resistance of Engineered Cementitious Composites (ECC) under Working Condition of Orthotropic Steel Bridge Decks Pavement

Fatigue Cracking Resistance of Engineered Cementitious Composites (ECC) under Working Condition of Orthotropic Steel Bridge Decks Pavement

Multiscale Analysis of the Influence of Steel Fiber Reinforcement on the Shear Strength of Post-Tensioned Dry Joints

Numerical Study on Diffusion of Chloride and Induced Rebar Corrosion by Two-Dimensional Multiscale Approach

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