Numerical analysis and modeling for crack width calculation using IoT in reinforced concrete members

The health of concrete structures is important because collapse of these structures can cause damage for humans. This paper presents an analytical model for calculation of crack widths in structural concrete members using Internet of Things. The model is mathematically derived from the actual bond s...

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Bibliographic Details
Published in:Journal of ambient intelligence and humanized computing 2018-08, Vol.9 (4), p.1119-1130
Main Authors: Lee, Kiyeol, Lee, HwaMin
Format: Article
Language:English
Subjects:
Artificial Intelligence
Bond stress
Building codes
Computational Intelligence
Concrete
Concrete structures
Cracking (fracturing)
Cracks
Elongation
Engineering
Internet of Things
Mathematical models
Numerical analysis
Ordinary differential equations
Original Research
Reinforced concrete
Reinforcing steels
Robotics and Automation
Steel
Tensile strength
User Interfaces and Human Computer Interaction
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Summary:The health of concrete structures is important because collapse of these structures can cause damage for humans. This paper presents an analytical model for calculation of crack widths in structural concrete members using Internet of Things. The model is mathematically derived from the actual bond stress-slip relationship between the reinforcing steel and the surrounding concrete. The relationships summarized in CEB-FIP Model Code 1990 and Eurocode 2 are used in this study together with the numerical analysis result of a linear slip distribution along the interface at the stabilized cracking stage. With these, the actual strains of the steel and the concrete are integrated respectively along the embedment length between the adjacent cracks to obtain the difference in the axial elongation. This model is applied to the test results available in literature. The predicted values are shown to be in agreement with the experimentally measured data.
ISSN:1868-5137
1868-5145
DOI:10.1007/s12652-017-0543-z