Huu-Dien Nguyen
Long An University of Economics and Industry, Tan An 850000, Long An, Vietnam.
*Corresponding author: Huu-Dien Nguyen
Abstract
This study investigates the finite element analysis and structural design of a reinforced concrete staircase in a multi-story building using ETABS software. The staircase was modeled within the global ETABS framework, and relevant loads were applied in accordance with Vietnamese standards. Internal forces, including bending moments and shear forces, were extracted using finite element method (FEM)-based analysis. The modeling process utilized shell elements to represent the slab behavior of stair flights and landings, while frame elements were employed for supporting beams. Load combinations were defined according to TCVN 2737:2020 to ensure a comprehensive assessment of both gravity and service conditions. Reinforcement detailing was carried out following TCVN 5574:2018, with particular attention to the arrangement of longitudinal and transverse reinforcement at critical sections. The results indicate that the stair-case meets both strength and serviceability requirements, demonstrating the effectiveness of ETABS as an integrated tool for staircase modeling, analysis, and design. This approach provides a reliable basis for optimizing reinforcement layouts in similar building structures.
References
[1] Computers and Structures, Inc. Etabs 19 – integrated building design software [computer program]. Berkeley (CA): CSI; 2020.
[2] TCVN 5574:2018. Concrete and reinforced concrete structures – design standard. Hanoi: Ministry of Science and Technology, Vietnam; 2018.
[3] MacGregor JG, Wight JK. Reinforced concrete: mechanics and design. Upper Saddle River (NJ): Pearson; 2012.
[4] EN 1992-1-1. Eurocode 2: design of concrete structures – part 1-1: general rules and rules for buildings. Brussels: European Committee for Standardization; 2004.
[5] Computers and Structures, Inc. Safe – slab analysis and design software [computer program]. Berkeley (CA): CSI; 2020.
[6] EN 1990. Eurocode: basis of structural design. Brussels: European Committee for Standardization; 2002.
[7] Nguyen HD. Xfem simulation of functionally graded plates with arbitrary openings. VNUHCM J Sci Technol Dev. 2025;27:p. 12085.
[8] Nguyen HD. Extended finite element approach for simulating arbitrary openings in functionally graded plates. Int J Mech Energy Eng Appl Sci. 2025;3(3).
[9] Nguyen HD. Using finite element method to calculate strain energy release rate, stress intensity factor and crack propagation of an fgm plate based on energy methods. Int J Mech Energy Eng Appl Sci. 2025;3(2).
[10] Bai X, Guo L, Wang Z, Zhong S. A dynamic piecewise-exponential model for transient crack problems of functionally graded materials with arbitrary mechanical properties. Theor Appl Fract Mech. 2013;66:41-61.
[11] Nguyen HD. Using the extended finite element method (xfem) to simulate own frequency under external influences of a closed system based on dynamic compensation method. J Int Multidiscip Res. 2025;27:p. 985.
[12] Ding S, Li X. The fracture analysis of an arbitrarily orientated crack in the functionally graded material under in-plane impact loading. Theor Appl Fract Mech. 2013;66:26-32.
[13] Praveen GN, Reddy JN. Stress analysis of functionally graded plates using the first-order shear deformation theory. Compos Struct. 1998;43:333-49.
Copyright
© 2026 by the author(s).
This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives (CC BY-NC-ND) license, which permits non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited and is not modified or adapted.
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How to cite this paper
Structural Design of Reinforced Concrete Staircases Using Finite Element Method
How to cite this paper: Huu-Dien Nguyen. (2026). Structural Design of Reinforced Concrete Staircases Using Finite Element Method. Engineering Advances, 6(3), 150-155.
DOI: http://dx.doi.org/10.26855/ea.2026.09.003