RCC Structures Design
If L is the effective span of a R.C.C. beam which is subjected to maximum shear qmax at the ends, the distance from either end over which stirrups for the shear, are provided, is

(L/2) (1 - 5/qmax)
(L/2) (1 - 2/qmax)
(L/2) (1 - 3/qmax)
(L/3) (1 - 5/qmax)

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RCC Structures Design
Steel beam theory is used for

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

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