The number of independent mechanism is related to number of possible plastic hinge locations by ________(a) n = h * r(b) n = h / r(c) n = h + r(d) n = h – rThe question was asked in a national level competition.I want to ask this question from Theorem of Plastic Collapse & Methods of Plastic Analysis in section Plastic and Local Buckling Behaviour of Steel of Design of Steel Structures

The number of independent mechanism is related to number of possible p

1.	The number of independent mechanism is related to number of possible plastic hinge locations by ________(a) n = h * r(b) n = h / r(c) n = h + r(d) n = h – rThe question was asked in a national level competition.I want to ask this question from Theorem of Plastic Collapse & Methods of Plastic Analysis in section Plastic and Local Buckling Behaviour of Steel of Design of Steel Structures
Answer» The correct choice is (d) n = H – R To explain I would say: The number of INDEPENDENT mechanism (n) is RELATED to number of possible PLASTIC hinge locations (h) and number of degree of redundancy (r) of the frame by equation n = h-r.

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