Civil Engineering MCQAE Level Civil Engineering
In plastic analysis of steel structures, collapse occurs when
Steel StructuresGeneralMEDIUM
Choose the correct answer
A
first fibre reaches proportional limit
B
sufficient plastic hinges form a mechanism
C
deflection becomes exactly zero
D
all bolts are removed
Correct Answer
B. sufficient plastic hinges form a mechanism
Why is this the answer?
A collapse mechanism forms after the required number of plastic hinges develops.
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