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Computers and Concrete Volume 33, Number 2, February 2024 , pages 205-216 DOI: https://doi.org/10.12989/cac.2024.33.2.205 |
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Numerical approach to predict stress-strain model for tie confined self curing self compacting concrete (TCSCSCC) |
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P Swamy Naga Ratna Giri, Vikram Tati, Rathish Kumar P and Rajesh Kumar G
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| Abstract | ||
| Self-Curing Self Compacting Concrete (SCSCC), is a special concrete in contemporary construction practice aimed at enhancing the performance of structural concrete. Its primary function is to ensure a sufficient moisture supply that facilitates hydration along with flow, particularly in the context of high-rise buildings and tall structures. This innovative concrete addresses the challenges of maintaining adequate curing conditions in large-scale projects, maintaining requisite workability, contributing to the overall durability and longevity of concrete structures. For implementing such a versatile material in construction, it is imperative to understand the stress-strain (S-S) behaviour. The primary aim of this study is to develop the S-S curves for TCSCSCC and compare through experimental results. Finite element (FE) analysis based ATENA-GiD was employed for the numerical simulation and develop the analytical stress-strain curves by introducing parameters viz., grade of concrete, tie diameter, tie spacing and yield strength. The stress ratio and the strain ratios are evaluated and compared with experimental values. The mean error is 1.2% with respect to stresses and 2.2% in case of strain. Finally, the stress block parameters for tie confined SCSCC are evaluated and equations are proposed for the same in terms of confinement index. | ||
| Key Words | ||
| confinement index; ductility Factor; stress-strain behaviour; tie confined SCSCC | ||
| Address | ||
| Department of Civil Engineering, National Institute of Technology, Warangal, Telangana, India-506004 | ||