Simulation of Early-Age Cracking due to Drying Shrinkage Based on a Multi-Scale Constitutive Model

Yoneda, Taiju; Ishida, Tetsuya; Maekawa, Koichi; Gebreyouhannes, Esayas; Mishima, Taketoshi

doi:10.1061/9780784412992.069

Cited by 15 publications

(15 citation statements)

References 5 publications

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“…At the same time, differential shrinkage of concrete is associated with long-term deformation and shear failure (Yoneda et al 2013), because the inside space of box culverts is rather dry but their outer surface is surrounded by wet soil fundation and/or underground water. Since the out-ofplane shear failure is a problem in danger, the diagonal shear crack propagation, which is possibly associated with drying shrinkage of concrtete, shall be simulated (Gebreyouhannes et al 2014) as well.…”

Section: Multi-scale Soil-rc Interaction Analysismentioning

confidence: 99%

“…During this period of wet curing, the cement hydration in concrete, the micro-structure formation and strength development were simulated under no external force. The shrinkage deformation driven by the capillary forces and disjoining pressure was computed after 11 days of wet curing by the integrated analysis (Yoneda et al 2013, Maekawa et al 2008. Here, the room temperature was 20 degree Celsius and the relative humidity was 60%.…”

Section: Delayed Shear Failure Of Rc Beams Under Sustained Loadsmentioning

confidence: 99%

“…Fig. 3 Scheme of multi-scale modeling of structural concrete (Yoneda et al 2013(Yoneda et al , 2015. …”

Section: Multi-scale Soil-rc Interaction Analysismentioning

confidence: 99%

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Mechanism of Long-Term Excessive Deformation and Delayed Shear Failure of Underground RC Box Culverts

Maekawa

Zhu

Chijiwa

et al. 2016

ACT

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The aim of this study is to clarify the mechanism of the progressive excessive deformation observed in real underground RC box culverts of about 30 years of age. It was found by the site-inspection, monitoring and the destructive testing that the excessive deflection of top slabs for the culverts, which is almost 10 times the design estimated value, accompanies the out-of-plane shear failure. It is also computationally investigated that the coupling of subsidence of the backfill soil and the combined creep and shrinkage of concrete after cracking is closely associated with the delayed shear failure found in the culvert in service. In order to prove the delayed shear failure under higher sustained loads, the timedependent shear crack propagation was reproduced in the laboratory test and the computational approach used in this study was examined.

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Section: Multi-scale Soil-rc Interaction Analysismentioning

confidence: 99%

Section: Delayed Shear Failure Of Rc Beams Under Sustained Loadsmentioning

confidence: 99%

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Mechanism of Long-Term Excessive Deformation and Delayed Shear Failure of Underground RC Box Culverts

Maekawa

Zhu

Chijiwa

et al. 2016

ACT

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“…Under the lapped curing, moisture loss through the surfaces is not computationally allowed. At the onset of exposure to out-door climate, the moisture transfer elements are placed on the surface and the moisture exchange between concrete and environments is made possible (Yoneda et al 2015(Yoneda et al , 2013.…”

Section: Transient Differential and Mean Strains Of Pc Segmentsmentioning

confidence: 99%

“…The continued deflection for a long time is clarified mainly due to the differential shrinkage of viaduct's flanges of different dimensions . Currently, the long-term excessive deflection can be estimated by thermo-hygral analysis (Ishida et al 2007;Maekawa et al 2008;Yoneda et al 2015Yoneda et al , 2013 which simulates the moisture migration and equilibrium coupled with mechanical models as shown in Fig. 1.…”

Section: Introductionmentioning

confidence: 99%

Long-Term Differential and Averaged Deformation of Box-Type Pre-stressed Concrete Exposed to Natural Environment

Chijiwa

Hayasaka

Maekawa

2018

ACT

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Middle-scale box-sectional hollow PC ducts, which consist of heterogeneous concrete with different mix proportions, were exposed to natural environments for about three years, and the long-term curvature and axial mean deformation, which have much to do with deflection of long span bridge viaducts, was gaged for verification of coupled thermo-hygral and multi-scale models. The associated internal moisture and the local climate inside micro-pores were measured and the effect of precipitation was quantified over yearly four seasons. The moisture migration linked with concrete multi-scale mechanics was analyzed and the simulation results are compared with the field exposure tests. The reliability of the thermo-hygral analysis, which has been used for estimating the long-term serviceability of bridges, was made firmer.

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Multiscale computational modelling of nano-silica reinforced cement paste: Bridging microstructure and mechanical performance

Nithurshan,

Elakneswaran,

Yoda

et al. 2024

Construction and Building Materials

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Simulation of Early-Age Cracking due to Drying Shrinkage Based on a Multi-Scale Constitutive Model

Cited by 15 publications

References 5 publications

Mechanism of Long-Term Excessive Deformation and Delayed Shear Failure of Underground RC Box Culverts

Mechanism of Long-Term Excessive Deformation and Delayed Shear Failure of Underground RC Box Culverts

Long-Term Differential and Averaged Deformation of Box-Type Pre-stressed Concrete Exposed to Natural Environment

Multiscale computational modelling of nano-silica reinforced cement paste: Bridging microstructure and mechanical performance

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