Upper-bound limit analysis of bearing capacity of strip footing due to combined loading

Based on the Meyerhof′s effective width of strip footing and the plastic limit analysis theory,an upper-bound solution of strip footing under vertical,horizontal and moment loads due to combined loading is presented by constructing variable permissive moving field.In order to verify the rationality and applicability of this theoretical solution,numerical solution is achieved by using the general-purpose FEM analysis package ABAQUS.The results indicate that the upper-bound solution of strip footing due to combined loading is accurate to calculate the bearing capacity of foundation perfectly.