Description of the problem

To verify the mathematical model of ELPLA for analyzing plane trusses, results of plane truss introduced by Werkle (2001) (Example 3.1, page 61) are compared with those obtained by ELPLA.

A plane truss of 4 nodes and 6 members is considered as shown in Figure 65. Members 5 and 6 are unconnected in their intersection point. The truss is subjected to vertical and horizontal point loads at node 2, each of 10 [kN].

 Example 28: Analysis of a plane truss