Difference between pin jointed and rigidly jointed structure.

 Following are the differences between pin jointed and rigidly jointed structure.

Aspect	Pin-Jointed Structure	Rigidly-Jointed Structure
Angle Between Members	The joints allow a change in angle between connected members.	The angle between connected members remains constant, even under load deformation.
Moment Transfer	Joints cannot transfer moments; they only transfer forces.	Joints transfer both forces and moments between connected members.
Force Transfer Mechanism	Pins transmit forces by developing shear between connected members.	Rigid joints allow members to transmit forces and moments through the joint.
Effect on Redundancy	Typically less redundant, simplifying analysis.	Rigid joints generally increase the structural redundancy.