For the pin-jointed truss shown below, with a load applied horizontally at joint 1, determine: (i)The magnitude of the force in each of the three members and state whether they are in compression or tension (ii)The magnitude and direction of the reactions at the supports answers: (i) F1-2 -140 kN (compression) ,F1-3 +100 kN (tension), F2-3 +100 kN (tension) (ii) R2=100 kN vertically upwards, R3 = 140 kN at -45degrees (below horizontal)
For the pin-jointed truss shown below, with a load applied horizontally at joint 1, determine: (i)The magnitude of the force in each of the three members and state whether they are in compression or tension (ii)The magnitude and direction of the reactions at the supports answers: (i) F1-2 -140 kN (compression) ,F1-3 +100 kN (tension), F2-3 +100 kN (tension) (ii) R2=100 kN vertically upwards, R3 = 140 kN at -45degrees (below horizontal)
International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:Andrew Pytel And Jaan Kiusalaas
Chapter9: Moments And Products Of Inertia Of Areas
Section: Chapter Questions
Problem 9.40P
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For the pin-jointed truss shown below, with a load applied horizontally at joint 1, determine:
(i)The magnitude of the force in each of the three members and state whether they are in
compression or tension
(ii)The magnitude and direction of the reactions at the supports
answers:
(i) F1-2 -140 kN (compression) ,F1-3 +100 kN (tension), F2-3 +100 kN (tension)
(ii) R2=100 kN vertically upwards, R3 = 140 kN at -45degrees (below horizontal)
Transcribed Image Text:2 45⁰
1
45°
90°
3
100
KN
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