5 m 12 KN/m 3 m 40 kN - B 5 m21 E= constant = 70 GPa A I = 554 (10) mm -4m Н6. 7.17 (a)

Problem 7.18 Determine the horizontal deflection at joint E of the truss shown in the figure if member BC is 18mm too long and member CE is 15mm too short. Use the method of virtual work. 4 m 4 m B 3 m a = 1.2 (10 SyC FIG. P7.16, P7.18

7.41 Use the virtual work method to determine the rotation of joint B of the frame shown. 7.42 Use the virtual work method to determine the vertical deflection at joint B of the frame shown in Fig. P7.41. 4m A 150 kN B -1.51 -1.5 m-1.5 m-+ 20 kN/m 5 m El= constant E = 200 GPa I= 500 (106) mm4 2 с

Determine the equations for slope and deflection of the beam shown by the direct integration method.EI = constant.

7.35 Use the virtual work method to determine the hori- zontal deflection at joint E of the frame shown in Fig. P7.34. 150 kN C 2 m 2 m I 200kN->> 21 2 m D B 50 kN/m 21 HH E Figure for Prob. 7.34 & 7.35 4 m E = 150 GPa I= 4000(106)mm¹

Use the virtual work method to determine the horizontal and vertical components of the deflection at joint B of the trusses or beams.