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What is P-Δ effect?

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in Design of Steel Structures by (962k points)
What is P-Δ effect?

(a) earthquake load

(b) second order moments arising from joint displaced

(c) second order moments arising from member deflection

(d) load due to shrinkage effect

The question was asked during an online interview.

Query is from Characteristic Loads topic in section Structural Analysis, Loading and Load Combinations of Design of Steel Structures

1 Answer

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Correct answer is (b) second order moments arising from joint displaced

To explain I would say: Second order moments arising from joint displaced is called P-Δ effect and second order moments arising from member deflection is called P-δ effect.

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