Numerical studies of the resistance of concrete keyed joints with rectangular keys in reinforced concrete structures
DOI:
https://doi.org/10.26906/znp.2025.65.4202Keywords:
bearing capacity, reinforced concrete keys, deformation model, numerical simulationAbstract
Numerical investigations were carried out on the behavior of keyed joints with rectangular keys in reinforced concrete elements under different failure mechanisms. A two-dimensional nonlinear model was developed in Simulia Abaqus with the concrete damage plasticity approach, accounting for material nonlinearity and contact interaction between joint components. Various failure modes were received, including through-crack formation, key tearing-off, shear failure, and bearing surface crushing. It was investigated how the tensile and compressive strength parameters of concrete affect the bearing capacity of a concrete joint under different types of failure. The specifics of modeling such problems in Simulia Abaqus and the problems of solution convergence were studied.
References
1. Dovzhenko O.O. Strength of keyed joints of concrete and reinforced concrete elements: experimental studies: Monograph. – Poltava: PoltNTU named after Yuri Kondratyuk, 2015. – 181 p.: ill., tables.
2. Dovzhenko O.O. Shear failure form realization in concrete / O.O. Dovzhenko, V.V. Pogrebnyi, I.A. Yurko // News the national academy of sciences of the republic of Kazakhstan. Series of geology and technical sciences. – Almaty: NAS RK, 2018. – № 2(428). – P. 55– 62.
3. Herfelt, M. A., Poulsen, P. N., Hoang, L. C., & Jensen, J. F. (2016). Numerical limit analysis of keyed shear joints in concrete structures. Structural Concrete, 17(3), 481-490. https://doi.org/10.1002/suco.201500161
4. Shamass, R., Zhou, X., & Alfano, G. (2015). Finite-Element Analysis of Shear-off Failure of Keyed Dry Joints in Precast Concrete Segmental Bridges. Journal of Bridge Engineering, 20, 04014084. https://doi.org/10.1061/(ASCE)BE.1943-5592.0000669
5. Hou W., Peng M., Jin B., Tao Y., Guo W., Zhou L., 2020, Influencing factors and shear capacity formula of single-key dry joints in segmental precast bridges under direct shear loading, Applied Sciences, 10(18), 6304. https://doi.org/10.3390/app10186304
6. Gan, H., Zhang, Q., Zhang, Y., Li, X., & Yu, D. (2025). Effects of Joint Configurations on Shear Behavior of Prefabricated Segmental Cap Beams. Buildings, 15(23), 4286. https://doi.org/10.3390/buildings15234286
7. Shen, C., Zhang, D., Liu, W., Fu, K., Wang, F., Wu, X., & Wang, D. (2024). Shear Capacity Model of Prefabricated Shear-Keyed Tooth Joints Under Confining Stress. Buildings, 14(12), 4042. https://doi.org/10.3390/buildings14124042.
8. Dassault Systèmes. Abaqus 202x Analysis User’s Manual, Section Concrete damaged plasticity.
9. DSTU-N B EN 1992-1-1:2010 “Eurocode 2. Design of reinforced concrete structures. Part 1-1. General rules and rules for structures” (EN 1992-1-1:2004, IDT). Kyiv: Minregionalbud of Ukraine, 2012. 311 p.
10. Comité Euro-International du Béton-Fédération International de la Précontrainte (CEB-FIP). CEB-FIP Model Code 2010: Design Code; Thomas Telford: London, UK, 2010.
11. Comité euro international du béton (CEB) та Fédération internationale de la précontrainte (FIP). CEB FIP Model Code 90: Model Code for Concrete Structures 1990. Bulletin No. 213/214, T. Telford Ltd., London, 1993.
12. Sümer, Y., & Aktaş, M. Defining parameters for concrete damage plasticity model, Challenge Journal of Structural Mechanics, Vol. 1, No. 3, pp. 149–155, 2015. https://doi.org/10.20528/cjsmec.2015.07.023
13. Ye, Q., Zhang, P., Ye, K., Wang, W., Li, Z., Gao, Y., Xie, T., & Liang, C. (2025). Experimental and Explicit FE Studies on Flexural Behavior of Superposed Slabs. Buildings, 15(10), 1758. https://doi.org/10.3390/buildings15101758.
14. Hussain I., Yaqub M., Ehsan A., Rehman S. U. Effect of Viscosity Parameter on Numerical Simulation of Fire Damaged Concrete Columns, Civil Engineering Journal, 5(8), 2019. https://doi.org/10.28991/cej-2019-03091376
15. Mahdi A. M. Impact of Failure-surface Parameters of Concrete Damage Plasticity Model on the Behavior of Reinforced Ultra-high Performance Concrete Beams, Periodica Polytechnica Civil Engineering, 67(2), pp. 495–504, 2023. https://doi.org/10.3311/PPci.21345
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