BI-LAYER BEAMS ON ELASTIC FOUNDATION WITH HORIZONTAL FRICTIONAL RESISTANCE

Based on Goodman model, which is used for simulating thecontact condition between beams, using Winkler foundation model upgradedas an elastic supporting body with horizontal and vertical forces, a set of differential equations and relevant theoretical solutions forbi-layer beams on the elastic foundation with the horizontal frictional resistanceare obtained. Considering the vertical tension and compression and thehorizontal shear of beams, a concept of the generalized reaction modulusfor interlayer \& foundation isproposed and the corresponding formulasare obtained. The influence of the horizontal frictional resistance onthe deflection, the totalsectional moment and the maximum flexural stress of bi-layer beams is discussed. The results show that the influence of the horizontalfrictional resistance can not be ignored.