Question

Problem Two Use the principal of virtual work to calculate the horizontal deflection at B. The area, A, and modulus of elasticity, E, are constant for all members. 10 k 15 k 8 ft 6 ft
The answer going to be “def at B =737.5/EL right “ can someone solve it step by step?

Answer 1

method 아 Vivtu Jumk IS K Ao B 2S 3o HA RA Rc x 180 & ft RA- 20ヒ 36 Taitt oint A IS FAC FAB Sin53 20 FAB ะ 25K (1)

FAC-15 t25 cos r3 =0 ointe CA Rc F2-0 topes low:- to 8 E A AE 3 AE AE

2 2St -240 displace metat B 1.33 1 33 cossi o -1.33 + FAB Sin53 。 E o

Fep 1-33 Fu8F ドCA 1.33 xte LUOVIC f32-1-33 Co CA) 3 1-66)350 o 4 133 x a uo A E AE 34.2 A e woVIC CI) A) 734 A E h匕 A E