y 2 kN 4 kN/m A 3 m -1.5 m 1.5 m

The framed structure illustrated in the diagram consists of identical right angled triangles of base 2 metres and is symmetrical in design with angles as shown and all loads in kN. The frame is supported at pins B and D. (a) Determine the magnitudes of the support reactions at pins Band D; (b) Use the method of joints to determine the type (tension or compression) and the magnitude of the force in each member of the frame. B D 15 kN 15 kN 45° 45° E G 20 kN

In the plane truss system, whose loading condition is shown in the figure, there will be support reactions A and B, and rod forces 1,2 and 3. 8- Ais the fixed joint and B is the sliding joint. Loads on the beam P= 50 kN, All acute angles in the truss system are 45 degrees. Accordingly, Bx = ? Oa) 0 O B) 200 OC) 225 D) none O TO) 175

3. A planar truss is constructed of steel members, all of which have a cross-sectional area of 3000 mm?. Determine the nodal displacements, reactions and element stresses. G 2 m B D 2m 50 kN 460 kN