Author:
An Le Vinh,Hiep Nguyen Trong,Tien Dao Ngoc
Abstract
During the rigid pavement design, the concrete slab working on the base/subbase and subgrade is usually modeled as the slab on the elastic foundation. However, the non-uniform distribution of materials in the base or subgrade layers naturally exists in real conditions and should be considered. In this paper, a finite element method for calculating concrete pavement slabs on an elastic foundation with non-uniform stiffness distribution is developed. This study applies 4-node finite elements and Mindlin plate theory to formulate the finite element equations. The results predicted by the proposed approach are verified analytically. Calculation examples are conducted with the practical settings to investigate the influence of slab and foundation stiffness parameters on the slab displacement.
Publisher
Engineering, Technology & Applied Science Research
Reference28 articles.
1. D. Froio, E. Rizzi, F. M. F. Simoes, and A. Pinto Da Costa, "Dynamics of a beam on a bilinear elastic foundation under harmonic moving load," Acta Mechanica, vol. 229, no. 10, pp. 4141–4165, Oct. 2018.
2. S. Lenci, "Propagation of periodic waves in beams on a bilinear foundation," International Journal of Mechanical Sciences, vol. 207, Oct. 2021, Art. no. 106656.
3. F. W. Beaufait and P. W. Hoadley, "Analysis of elastic beams on nonlinear foundations," Computers & Structures, vol. 12, no. 5, pp. 669–676, Nov. 1980.
4. G. C. Tsiatas, "Nonlinear analysis of non-uniform beams on nonlinear elastic foundation," Acta Mechanica, vol. 209, no. 1, pp. 141–152, Jan. 2010.
5. D. Xuan Quy and N. Thị, "Static analysis of beam resting on elastic foundation by anisotropic beam-foundation element taking into account non-contact between beam and foundation," Transport and Communications Science Journal, vol. 72, no. 5, pp. 552–564, Jun. 2021.