RCC Structures Design
If the size of a column is reduced above the floor, the main bars of the columns, are

All of the listed here
Bent inward at the floor level
Stopped just below the floor level and separate lap bars provided
Continued up

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RCC Structures Design
Steel beam theory is used for

Design of simple steel beams
Doubly reinforced beams ignoring compressive stress in concrete
Beams if shear exceeds 4 times allowable shear stress
Steel beams encased in concrete

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