Can Anyone tell me that how manually we calculate displacements, code stresses in CAESAR II?

I know in the quick refrence guide for various codes formulaes are given to calculate the code stresses, but from where should we get the values of parameters which are given in the formulaes?

Pls someone explain me as i m not working on any project?

Thanx in advance........

The forces and moments should be obtained from the global Force / Moment report. Areas, section modulii, and SIFs are all determined by Code rules - depending on the load case.