RCC Structures Design
Steel beam theory is used for

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

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RCC Structures Design
In a singly reinforced beam

Steel possesses initial stresses when embedded in concrete
Compression is borne entirely by concrete
Plane sections transverse to the centre line of the beam before bending remain plane after bending
Elastic moduli for concrete and steel have different values within the limits of deformation of the beam

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RCC Structures Design
According to load factor method, the permissible load ‘W’ on a short column reinforced with longitudinal bars and lateral stirrups, is

Stress in concrete × area of concrete + Stress in steel × area of steel
Stress in concrete × area of concrete
None of these
Stress in steel × area of steel

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