09-10-2014, 04:14 PM
Static and free vibration analysis in lateral direction of single piles with and without compressive axial load has been carried out. The governing differential equations have been solved exactly by treating the soil as a linear homogeneous Winkler's model. The boundary conditions considered are: free head or fixed head; free tip or hinged tip (hinged tip in case of static analysis only). Piles have been treated as rigid, finite or semi-infinite (semi-infinite only for statics) depending upon their relative stiffness with respect to soil Closed form expressions have been developed for lateral displacement, bending moment and critical buckling load for laterally loaded (static) piles with or without axial load. These expressions have been used to correlate the lateral behaviour of the pile with and without axial load in terms of amplification factors which are functions of the ratio of applied axial load to the critical buckling load. For rigid and semi-infinite piles without moral load the normalised 1ateral displacement and bending moment (normalised with respect to thei