RCC Structures Design
Steel bars are generally connected together to get greater length than the standard length by providing

Straight bar splice
Dowel splice
Hooked splice
All listed here

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RCC Structures Design
A pre-stressed concrete member is preferred because

All listed here
Large size of long beams carrying large shear force need not be adopted
Removal of cracks in the members due to shrinkage
Its dimensions are not decided from the diagonal tensile stress

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