Design of Steel Structure
Bearing stiffeners are provided ati) the supportsii) the mid spaniii) the point of application of concentrated loads The correct answer is

(i), (ii) and (iii)
both (i) and (ii)
both (i) and (iii)
only (i)

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Design of Steel Structure
The mechanism method and the statical method give

upper and lower bounds respectively on the strength of structure
lower bound on the strength of structure
upper bound on the strength of structure
lower and upper bounds respectively on the strength of structure

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