Truss Body Diagram. Consider the two bar truss again shown below as a free body diagram. All member forces and support.
It is first necessary however to determine the supportreactions on either the left or right side. Draw free body diagram of truss 2. As an example consider this crate suspended from two cords.
Solution free body diagram.
Draw the free body diagram. The long truss was designed by stephen h. Due to the load transfer process in truss systems no discontinuity will exist in the member force influence line. Section aa will be used since this section will exposethe internal force in member cf as external on the free body diagram of either the right or left portion of the truss.