Abstract
Determination of neutral plane position is the key point in the analysis of two layer bonded concrete slab on Winkler foundation, however, there are no solutions for it when the Poisson’s ratios of two slabs are different. Based on the Kirchhoff hypotheses, the equation of neutral plane was formulated in this paper and numerical method was employed to solve the equation. The position of the neutral plane for the two-layer bonded slab is found out. In addition, the effects of the modulus of foundation, the ratio of Poisson’s ratios, elastic moduli and thicknesses of bonded slab on the positions of neutral plane were discussed, and the results show that the position of the neutral plane for bonded slab with different Poisson ratios is totally different from that for bonded slab with the same Poisson ratio.
