Waist Slab Staircase Definition

Mainly used in rcc stair. Minimum stair thickness required to satisfy deflection requirements is given by cm l h 16 0 10 160 min 10 let slab waist t be equal to 7 5 cm. In this waist the steps rest.

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Waist slab thickness will depend on the length of the stair run.

Waist slab staircase definition. Waist slab is the nothing but the normal slab which is in some inclination angle between two supports. Average step height is given as havg 16 5cm 16 0cm 0 8823 7 5 8 cos 7 5 8 a shear force. The steps of the staircase which stand on waist slab can be developed with bricks or concrete. This can be imagined like a ramp not including the steps.

It is made up of rcc or wood the waist is the minimum thickness perpendicular to the soffit of the staircase. This term refers to a slab of the stair that is slanting from the floor slab to the landing slab. Waist slab for a staircase is probably more used as a slang not as a professional technical word. The depth thickness of the waist is the least thickness perpendicular to the soffit of the staircase cl.

This can be imagined like a ramp not including the steps. Redesign the stair shown in example 10 1 if it is a cantilever type of a clear span of 1 6 m. 33 3 of is 456. The waist is the thickness of the structural slab of rcc stairs.

Normally thickness is of 5 or 6. This term refers to a slab of the stair that is slanting from the floor slab to the landing slab. Waist slab for a staircase is probably more used as a slang not as a professional technical word. The depth of the waist slab on which steps are built up is called as waist.

Waist slab is rest on the beam to beam and main stair reinforcement steel goes up to mid depth of the resting beam.