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Civil Engineering · Q25

Structural Analysis

Engineering and GATE · Civil Engineering · question 25

Q25

Number of unknown internal forces in each member of a rigid jointed plane frame is

A.
1
B.
2
C.
3
Answer
D.
6

Answer: Option C

Solution

Answer: Option C
Solution:
The correct answer is Option C: 3.
Here's why:
In a rigid jointed plane frame, each member is subjected to three internal forces:
* Axial Force: The force acting along the longitudinal axis of the member (tension or compression).
* Shear Force: The force acting perpendicular to the longitudinal axis of the member.
* Bending Moment: The internal moment that causes bending in the member.
Therefore, there are three unknown internal forces in each member of a rigid jointed plane frame.