Question

What are the different methods of
analyzing (or finding out the forces) a
perfect frame? Which one is used where
and why?​

Answer 1

Answer:

Following are the assumptions made in finding the forces in the members of a frame.

The frame is a perfect frame

The frame is loaded only at the joints

All the members of the frame are pin-jointed

Self-weight of the members is neglected.

Forces in various members of a perfect frame may be found out either by analytical method or graphical method. Here, the discussion is confined to only analytical method.

A perfect frame can be analytically analyzed by the following methods:

Method of joints or method of resolution

Method of sections or method of moments