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Use the stiffness method to determine the horizontal and vertical components of the displacement at Joints...

Use the stiffness method to determine the horizontal and vertical components of the displacement at Joints C and D. For all b

Use the stiffness method to determine the horizontal and vertical components of the displacement at Joints C and D. For all bars, E = 206.8 GPa and A = 1290 mm². Take i = 70 kN and j = 80 kN. 3.66 m 4.88 m Joint C: a) Az = b) 4y = Joint D: c) 4, = d) 4, =
0 0
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Answer #1

180 tn A . Page - roky 3 D 3.66m , k 4.88 m 2 E = 206.8 GPa = 206.8 kN/mm and A=1290 mm2 2= 20 kn, 5=80kn, length of @-0 and- - 1 2 3 4 Гm. AE | ях Az - -Az y ) JE I | xxxy s teby - My | - і бачу , 153 -уу - % x » Ск- , Гn 199oX .06.8 A.RR X to ( oPage-3 » [x3]= AE li od 573 LOO OOS 1 1 0 1 0 1 in this co-ordinates 5,6 and g are restrained by supports. so, I3 54.5 11 → [TK67 Tko je 1 / § 1 3 1 Page 4 2240x206+8 | 2008 10.481 0.8 -0.487 K0.481 -0.6 -0048 006 15 | 08 | -0.48 | 4008 0.4813 1 -0.45 5 5 5 5 189.26.gq -$4.67 68 6 s,qq 4g. (2 6 0 : 0 |--. ( 19 6g Co.cg 24.08 | 6 26.99 46.6 -2099 0 2489 - 2099 84-6 19.64 ]

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