RCC Structures Design
The reinforced concrete beam which has width 25 cm, lever arm 40 cm, shear force 6t/cm², safe shear stress 5 kg/cm² and B.M. 24 mt,

Is over safe in shear
Is safe in shear
Is unsafe in shear
Needs redesigning

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RCC Structures Design
According to I.S. : 456, slabs which span in two directions with corners held down, are assumed to be divided in each direction into middle strips and edge strips such that the width of the middle strip, is

Two-third of the width of the slab
Three-fourth of the width of the slab
Four-fifth of the width of the slab
Half of the width of the slab

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