Analysis of Uplift
The analysis of a spread footing in tension is performed when the load due to a negative normal force N (the force acts upwards) is assumed. The verification of such a footing is carried out according to the corresponding verification methodology. During the analysis the program compares the maximum tensile force Nt,max with the uplift resistance Rt. The program considers the following four methods of the calculation of bearing capacity (uplift resistance Rt) of footing: