Abstract
The behavior of segmental structures depends mainly on the behavior of the joints between the segments. Even though joints forms a discontinuity; they should have the capacity to transmit compressive and shear stresses. Shear behavior of the joints is greatly influenced by the confining pressure and the surface properties. According to shear friction approach, shear capacity of joints can be improved by varying the surface properties of joints. It is observed that limited studies were done on the factors affecting the friction at joints and only few Finite Element studies on joints were done. In this study, a three-dimensional Finite Element study using ABAQUS has being carried out on joints with various surface properties. The Finite Element Analysis model consisted of two parts in surface to surface contact. The C3D8R element and B31 element with a refined mesh size of 10 mm is used for modelling concrete and reinforcement respectively. The material properties considered were modulus of elasticity of 27.38 GPa and Poisson’s ratio of 0.2 for concrete and for reinforcement steel were Young’s Modulus 210 GPa and poisson’s ratio 0.3. Material nonlinearity is introduced by Concrete Damage Plasticity model. Parameters studied are prestressing force and coefficient of friction at joints. The shear resistance of joints under different surface properties were evaluated using FE study and compared with experimental results available from a reported literature (Jiang et al in Mech Comput 19(1):1–16 2015, [1]).
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Acknowledgements
This research has been done at CSIR-Structural Engineering Research Centre(CSIR-SERC), Chennai, India.The support provided by the organisation and scientists for carrying out the research is greatly appreciated. This paper is being published with the kind permission of the Director of CSIR-SERC.
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George, S.J., Farvaze Ahmed, A.K., Maheswaran, S., Paul, M.M. (2021). Shear Behavior of Joints in Precast Prestressed Concrete Segments-A Finite Element Study. In: Dasgupta, K., Sudheesh, T.K., Praseeda, K.I., Unni Kartha, G., Kavitha, P.E., Jawahar Saud, S. (eds) Proceedings of SECON 2020. SECON 2020. Lecture Notes in Civil Engineering, vol 97. Springer, Cham. https://doi.org/10.1007/978-3-030-55115-5_62
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DOI: https://doi.org/10.1007/978-3-030-55115-5_62
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