Structural Analysis - Civil Engineering Questions and Answers

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Discussion :: Structural Analysis

For stable structures, one of the important properties of flexibility and stiffness matrices is that the elements on the main diagonal
(i) Of a stiffness matrix must be positive
(ii) Of a stiffness matrix must be negative
(iii) Of a flexibility matrix must be positive
(iv) Of a flexibility matrix must be negative
The correct answer is

(i) and (iii)

(ii) and (iii)

(i) and (iv)

(ii) and (iv)

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