Home Work 02 – Structural Analysis by Matrix Method Engineering ...

Figure 2. Assignment no 23. (a) Assemble the global stiffness equation for the truss shown. Modulus of elasticity, E, and crosssectionalarea, A, of all bars are the same. (b) Assuming there will be no fore applied at e, eliminate thecorresponding degrees of freedom from the global equations by proper algebraic operation and developa condensed matrix equation containing only the forces and degrees of freedom at c and d. (c) Calculatethe reactions and bar forces for a 200-kN horizontal force acting to the right at d.Figure 3. Assignment no 34. Compute the displacements, reactions, and bar forces of the truss shown. A = 40x10 3 mm 2 for all chordmembers and 25x10 3 mm 2 for web members. Modulus of elasticity, E = 200.000 MPa. Use a computerprogram to compare the result.