Question

The truss shown below is subjected to three Q kN vertical forces and one F kN force. Calculate: 1.5 m 900 45% Q IN

Q = 170 kN F = 80kN

The x component of the reaction at E,Ex (in kN)

The y component of the reaction at E, Ey (in kN)

The y component of the reaction at A, Ay (in kN)

The force in member ED (in kN)

The force in member IB (in kN)

The force in member IH (in kN)

Question 2

The symmetrical truss shown below is subjected to five W lb vertical forces and two P lb horizontal forces. Calculate:

W = 115 lb P = 80 lb

The x component of the reaction at H,Hx (in lbs)

The y component of the reaction at H, Hy (in lbs)

The y component of the reaction at A, Ay (in lbs)

The force in member AB (in lbs)

The force in member AM (in lbs)

The force in member KO (in lbs)

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Answer #1

Date Page to kn a 5m BOKN Ito KN A Im * 2m f 2m bt im Ev=o Ay tEy = 566.56 KN مجمع Ey X 6 - 170x1 - 170x3 -170 X5 20 a255 KNDate Page Joint A Sokn 950 $45 Evzo - for sin 659) +311.54- so sin 6450) = 0 . 311.54 KN |:: FAB < 520.58 KN T©). El=0 80 cosDate Page 115 15 115 lb 15 16 15lb Á Ó 15lb Ev=O Ayt Hy = 115 x 5 = 575 lb EMA=0 HyX 9 - 115 XG-115 X 6 -115 x 4.5 - 115x3 -Date Page Joint A 45 lb FAB Qatant/3_ (1.5 o a 63.43 FAM Ev=0 12.87.516 _287.50 – 115 - FAB sin 63.43) 20 FAB = 192.86.26 69

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