Question

When a load is applied to a structure with rigid joints
1. there is no rotation or displacement of joints
2. there is no rotation of joints
3. there is no displacement of joints
4. there can be rotation and displacement of joints but the angle between the members connected to the joints remains same even after application of load

Answer 1

Correct Answer - Option 1 : there is no rotation or displacement of joints

Concept:

Pin Joint:

• Only axial force and shear force can be transferred from one member to another if they are joined by a pin joint.
• A pin join doesn't resist moment or rotation.
• It resists only horizontal and vertical movement.

Rigid Joint:

• Axial force, shear force, Bending moment can be transferred from one member to another if they are joined by a Rigid joint.
• A rigid joint resists rotation.
• It is resisting the relative horizontal movement as well as relative vertical movement.

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Hence, When a load is applied to a structure with rigid joints, there is no rotation or displacement of joints.