Solution:A frame structure is well connected member. It is classified as following categories–
(i) If the number of member provided is same as requirement, then frame is called as perfect frame, these type of structure analysed using the three conditions of static equilibrium.
M = 2J – 3
(ii) If the number of member provided is more than the requirement then the frame is called redundant frame.
M > 2J – 3
(iii) If the number of member provides is less than the requirement, then the frame is called deficient frame.
M < 2J – 3
Where, M = Number of member
J = Number of joint
