A modular framework for performance-based durability engineering: From exposure to impacts

Flint, Madeleine M.; Baker, Jack W.; Billington, Sarah L.

doi:10.1016/j.strusafe.2014.03.003

Cited by 20 publications

(20 citation statements)

References 30 publications

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“…Structures design present limitations regarding to the structural components type and use of and environmental characteristics of their zones of insertion, in addition to constant weather condition changes . And so, the specification of mixtures may be an inefficient way to ensure durability, which in turn is related to compressive strength .…”

Section: Introductionmentioning

confidence: 99%

“…9 Structures design present limitations regarding to the structural components type and use of and environmental characteristics of their zones of insertion, in addition to constant weather condition changes. 10 And so, the specification of mixtures may be an inefficient way to ensure durability, Discussion on this paper must be submitted within two months of the print publication. The discussion will then be published in print, along with the authors' closure, if any, approximately nine months after the print publication.…”

Section: Introductionmentioning

confidence: 99%

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Determination of volume and distribution of pores of concretes according to different exposure classes through 3D microtomography and mercury intrusion porosimetry

Pacheco

Souza

Christ

et al. 2018

Structural Concrete

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Diagnosing and understanding the properties of concrete structures allows its use in more effective ways that neither compromise application nor impose safety risks or waste materials. Several tests can be performed for this purpose, differing with regards to diagnostic precision, complexity of execution, costs, need of specific apparatus, and others. Specifications from standards must be followed to assure the durability of concrete structures, such as Eurocode 1 (EN 1992‐1) and EN 206 in Europe. This study determined the volume and the distribution of pores of four concrete compositions with distinct water/cement ratio, cement consumption, and compressive strength, through tests of mercury intrusion porosimetry (MIP) and 3D microtomography. Results showed high correlation coefficients between the tests for assessing voids and compressive strength. Comparatively, the 3D microtomography test presented linear relation to the specifications of mixtures, although MIP indicated discrepancies for mixture 2.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Determination of volume and distribution of pores of concretes according to different exposure classes through 3D microtomography and mercury intrusion porosimetry

Pacheco

Souza

Christ

et al. 2018

Structural Concrete

View full text Add to dashboard Cite

show abstract

“…A number of researchers have developed probabilistic approaches for assessing climate impacts on durability of structures exposed to chlorides. Previous studies have indicated a potential decrease in time to failure by <1% to >30% [1][2][3]. However, these studies have generally used deterioration models that are not particularly sensitive to changes in boundary conditions, e.g., apparent Fickian diffusion models for chloride ingress [2,3], or one-way coupled models for heat and mass transport [1].…”

Section: Introductionmentioning

confidence: 99%

“…Previous studies have indicated a potential decrease in time to failure by <1% to >30% [1][2][3]. However, these studies have generally used deterioration models that are not particularly sensitive to changes in boundary conditions, e.g., apparent Fickian diffusion models for chloride ingress [2,3], or one-way coupled models for heat and mass transport [1]. Deterioration models that are sensitive to boundary conditions tend to require surface boundary conditions at high temporal resolution [4], making them difficult to implement in the context of a non-stationary climate.…”

Section: Introductionmentioning

confidence: 99%

Assessing climate impact on reinforced concrete durability with a multi-physics model

Flint

Michel

2017

IABSE Symposium, Vancouver 2017: Engineering the Future

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A framework for performance-based durability engineering can incorporate climate impacts in its assessment of the lifetime sustainability of built infrastructure. Most performance-based durability and climate impact assessments have used simplified deterioration models, which are insensitive to shorter-term fluctuations in boundary conditions and therefore may underestimate climate change impacts. A highly sensitive fully-coupled, validated, multi-physics model for heat, moisture and ion transport and corrosion was used to assess a reinforced concrete structure located in coastal Norfolk, Virginia. Deterioration was predicted using tidal exposure conditions obtained from statistically downscaled global climate model output under two emissions scenarios. Deterioration, repair, and decision metrics under the emissions scenarios were compared using the performance-based framework to assess the influence of climate change.

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“…International Journal of Polymer Science [24], the performance-based model is formulated from the integration of mathematical models of the interests rather than the application of prescriptive approaches (e.g., limiting acceptable performance). Therefore, efforts of this research aim to contribute to this area.…”

mentioning

confidence: 99%

Predictable Behavior of GFRP-Reinforced Bridge Decks: Formulation of a Strain-Based Capacity Model

Kim

Park

2019

International Journal of Polymer Science

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This paper proposes a reliability analysis framework for glass fiber-reinforced polymer- (GFRP-) reinforced concrete systems with uncertain capacities and demands over time. Unfortunately, there has been limited discussion or research done related to the potential change of failure modes over time. Therefore, a rational approach is needed to integrate multiple failure modes in a single analysis framework, considering uncertainties of time-variant demands and capacities. To account for multiple failure modes, this study proposes the limit state function to estimate the safety margin, based on strain values of GFRP-reinforcing bars. A proposed limit state function can capture the likelihood of both shear and flexural failure modes, simultaneously. In this study, seven typical bridge deck configurations (e.g., varied deck thickness, girder spacing, and bar size) were exposed to various ambient temperatures. Simulation results show that reliability indices of 100-year exposure exhibit significant variance, ranging from 2.35 to 0.93, with exposure temperatures ranging from 13 to 33°C. Exposure temperature and time are the dominant factors influencing the reliability indices, so are the ones that need to be changed. As exposure time and/or exposure temperature increase, the flexural capacity model plays an important role to determine the reliability indices. When flexural and shear failure modes are equally dominant, reliability indices can capture risks of both failures, using the proposed strain-based approach.

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A modular framework for performance-based durability engineering: From exposure to impacts

Cited by 20 publications

References 30 publications

Determination of volume and distribution of pores of concretes according to different exposure classes through 3D microtomography and mercury intrusion porosimetry

Determination of volume and distribution of pores of concretes according to different exposure classes through 3D microtomography and mercury intrusion porosimetry

Assessing climate impact on reinforced concrete durability with a multi-physics model

Predictable Behavior of GFRP-Reinforced Bridge Decks: Formulation of a Strain-Based Capacity Model

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