Q6) Method of Sections This bridge is made of two-force members, joined at their ends. Each square is 2m across and 2m tall. Angles are either 45° or 90°. There are two applied forces acting on the top of the bridge, as shown. The structure is attached to the ground with a pin joint at point A. Point B is on frictionless rollers. a) Calculate the reaction forces at A and B. Write your answers in vector form. b) Use the Method of Sections to calculate the forces in members 1, 2 and 3. Clearly specify if the force is compression or tension.
Q6) Method of Sections This bridge is made of two-force members, joined at their ends. Each square is 2m across and 2m tall. Angles are either 45° or 90°. There are two applied forces acting on the top of the bridge, as shown. The structure is attached to the ground with a pin joint at point A. Point B is on frictionless rollers. a) Calculate the reaction forces at A and B. Write your answers in vector form. b) Use the Method of Sections to calculate the forces in members 1, 2 and 3. Clearly specify if the force is compression or tension.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Q6) Method of Sections
This bridge is made of two-force members, joined at their ends.
Each square is 2m across and 2m tall. Angles are either 45° or 90°.
There are two applied forces acting on the top of the bridge, as shown.
The structure is attached to the ground with a pin joint at point A. Point B is on frictionless rollers. a) Calculate the reaction forces at A and B. Write your answers in
b) Use the Method of Sections to calculate the forces in members 1, 2 and 3. Clearly specify if the force is compression or tension.
Transcribed Image Text:10N
20N
2m
1
2m
3
A
y,
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