A creep model coupling moisture and mechanical damage for water-bearing concrete

Zheng, Zhao-Qiang; Liu, Huai-Zhong; Xiao, Ming-Li; He, Jian; Xie, Hehan; Li, Zhuo

doi:10.1016/j.conbuildmat.2022.126598

Cited by 8 publications

(7 citation statements)

References 52 publications

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“…The viscoelastic strain ε 11 ve of the concrete in the threedimensional stress state can be derived from Equation (7) and obtained using the analogy method and Equations (22) and (23).…”

Section: Viscoelastic Strain In a Threedimensional Stress Statementioning

confidence: 99%

“…The viscoplastic strain in the three-dimensional stress state cannot be determined using the analogous method and Equations ( 22) and (23). It needs to be determined by the yield function and the plastic potential function.…”

Section: Viscoplastic Strain In a Threedimensional Stress Statementioning

confidence: 99%

“…The accelerated creep in the three-dimensional stress state is determined by using the analogy method and Equations ( 22) and (23).…”

Section: Viscoplastic Strain In a Threedimensional Stress Statementioning

confidence: 99%

“…The model can predict the creep deformation pattern of high-performance concrete under the action of different loading periods. Zheng et al 23 investigate the effects of moisture content and stress on concrete creep from the perspective of damage rheology theory. The weakening effects of moisture and overstress are characterized as time-independent and time-dependent damage functions respectively, and a damage creep model is developed to describe the creep behavior of water-bearing concrete.…”

Section: Introductionmentioning

confidence: 99%

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Influence of pore water pressure on concrete creep and a creep model considering the effect of cohesion and internal friction angle

Liu,

Zhang

2024

Fatigue Fract Eng Mat Struct

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A new nonlinear viscoplastic body considering cohesion and internal friction coefficient versus time is proposed by considering cohesion and internal friction angle. A new creep model for concrete considering cohesion and internal friction angle is obtained by interlocking it with the conventional model. The results show that the creep model can properly reflect the creep development of soft‐cut concrete at the pile head by comparing the creep model with the three‐dimensional creep test data trends under various levels of loading. The model can well describe the whole process of creep deformation and also better compensate for the shortcomings of the traditional creep model that cannot describe the characteristics of accelerated creep deformation.

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“…The viscoelastic strain ε 11 ve of the concrete in the threedimensional stress state can be derived from Equation (7) and obtained using the analogy method and Equations (22) and (23).…”

Section: Viscoelastic Strain In a Threedimensional Stress Statementioning

confidence: 99%

Section: Viscoplastic Strain In a Threedimensional Stress Statementioning

confidence: 99%

“…The accelerated creep in the three-dimensional stress state is determined by using the analogy method and Equations ( 22) and (23).…”

Section: Viscoplastic Strain In a Threedimensional Stress Statementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Influence of pore water pressure on concrete creep and a creep model considering the effect of cohesion and internal friction angle

Liu,

Zhang

2024

Fatigue Fract Eng Mat Struct

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“…A creep model of sulfateattacked concrete considering concrete damage was established. Zheng et al [18] based on damage rheology theory, combined with the effects of moisture content and overstress; they established a creep model for water-bearing concrete. Zhang et al [19] used a mesoscale approach to obtain a concrete creep model from a microscopic perspective based on a direct analysis of images.…”

Section: Introductionmentioning

confidence: 99%

Creep Properties of Axially Compressed Fly Ash Concrete under Sulfate Corrosion

Cao

Han

2022

Advances in Materials Science and Engineering

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Creep, sulfate erosion resistance, fly ash content of concrete, and sustained compression load are important factors that will affect the long-term performance of concrete. It is of great interest to combine these effects together to make a comprehensive investigation of fly ash concrete. However, the concrete creep under both sustained compression load and sulfate attack conditions has rarely been reported. To obtain the creep characteristics of fly ash concrete in a sulfate environment, this paper first finishes the creep experiments of fly ash concrete under sustained compression load and sulfate attack. The test factors include the load stress level, the concentration of sulfate solution, and the content of fly ash. Based on the creep mechanism of fly ash concrete under sulfate erosion, the relationship between time-dependent section area variation and creep was carried out. After comparing different creep models, the creep calculation model of fly ash concrete under sulfate erosion was built via the B4 model combined with the cross-sectional area of the damaged layer and undamaged layer of concrete. Finally, comparing the calculated values with the test results, the calculated results were in good agreement with the test data, which is of practical significance to the practical engineering application and the improvement of structural reliability.

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Influence of moisture on ultrasonic propagation, acoustic emission activity, and failure mechanism in concrete media

Meng

Shi

et al. 2023

Construction and Building Materials

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A creep model coupling moisture and mechanical damage for water-bearing concrete

Cited by 8 publications

References 52 publications

Influence of pore water pressure on concrete creep and a creep model considering the effect of cohesion and internal friction angle

Influence of pore water pressure on concrete creep and a creep model considering the effect of cohesion and internal friction angle

Creep Properties of Axially Compressed Fly Ash Concrete under Sulfate Corrosion

Influence of moisture on ultrasonic propagation, acoustic emission activity, and failure mechanism in concrete media

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