Computer · Structural Analysis

The method of sections for planar trusses can be formalized using the following steps: i) Consider each of the bar forces in turn and determine the bar force by taking moments about the point of intersection of the other two forces, or by projection on the transverse direction if they are parallel. ii) Divide the truss structure into two parts by a section intersecting two or three bars. iii) Determine the support reactions on the truss structure. Select the proper sequence of these steps from the options below.