Question

Which of the following is true about kinematic theorem?

(a) it represents lower limit to true ultimate load

(b) it represents plastic load

(c) it has small factor of safety

(d) it satisfies equilibrium and yield conditions

The question was asked in quiz.

Question is from Theorem of Plastic Collapse & Methods of Plastic Analysis in division Plastic and Local Buckling Behaviour of Steel of Design of Steel Structures

Answer 1

Correct option is (c) it has small factor of safety

Best explanation: Load computed on basis of this mechanism will always be greater than or at least equal to true ultimate load. Hence, kinematic method represents an upper limit to the true ultimate load and has a smaller factor of safety. This theorem satisfies equilibrium and continuity conditions.