For each member, take example between space 1 and 5 would be the member AC and so forth. It starts by labeling the spaces between the forces and members with an example shown above reaction Ra and applied force, P labeled as space 1 and continue moving clockwise around the truss. 3) In the Run dialog box type a:setup and then click the OK button.
2) Click the Windows Start button and select Run. The procedure for solving this problem could be quite tricky and requires imagination. 1) Put the RISA-3D disk 1 in your computers A (3.5inch) drive. For this case, the value of Hb is zero as it is not influenced by any horizontal forces. Yet again, evaluating the support reaction plays an important role in solving any structural problems.
Solve the reactions at the supports by solving the equations of equilibrium for the entire truss,.In order to draw the Maxwell diagram directly, here are the simple guidelines: The resulting diagram of truss is known as the Maxwell’s Diagram. The number of lines which have to be drawn can be greatly reduced, however, if the various force polygons are superimposed. The graphical analysis was developed by force polygons drawn to scale for each joint, and then the forces in each member were measured from one of these force polygons.
The method of joints could be used as the basis for a graphical analysis of trusses.