Concrete Technology and Design of Concrete Structures
In prestressed concrete

both forces of tension and compres-sion as well as lever arm change
forces of tension and compression change but lever arm remains unchanged
forces of tension and compressions remain unchanged but lever arm changes with the moment
both forces of tension and compres-sion as well as lever arm remain unchanged

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Concrete Technology and Design of Concrete Structures
Minimum pitch of transverse reinforcement in a column is

sixteen times the smallest diameter of longitudinal reinforcement bar to be tied
lesser of the above three values
the least lateral dimension of the member
forty-eight times the diameter of transverse reinforcement

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Concrete Technology and Design of Concrete Structures
If the foundations of all the columns of a structure are designed on the total live and dead load basis, then

the settlement of interior columns will be more than exterior columns
there will be no settlement of columns
there will be no differential settlement
the settlement of exterior columns will be more than interior columns

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