The case: A circular shaft subjects to underground water pressure (assumed uniform at a certain depth).
Model: Plan circular shaft model with frame elements radial at 10 degrees (i.e. 36 elements total). The elemets are load with the uniform water pressure normal to the elements. No supports are provided.
Results: the resultant axial force is close to the theoretical value, except that there are some shear and moment.
Question: SAP produces warning messages saying no supports provided. How to get rid of these warnings?
Model: Plan circular shaft model with frame elements radial at 10 degrees (i.e. 36 elements total). The elemets are load with the uniform water pressure normal to the elements. No supports are provided.
Results: the resultant axial force is close to the theoretical value, except that there are some shear and moment.
Question: SAP produces warning messages saying no supports provided. How to get rid of these warnings?