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STAIRS

- ANIKET ZANWAR

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STAIRS

 DEFINATION :

A stair may be defined as series of

steps suitably arranged for the purpose ofconnecting different floors of building.

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LOCATION OF STAIRS In residential building stairs are centrally

located to provide easy access to all therooms.

In public apartments stairs are located nearthe entrance.

Staircase should never be located near oradjacent to elevators more importantly they

must be against the wall .

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   TYPES O ST!I"S

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*I%"+!TE,

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  STRAIGHT STAIRS

ostly /or small houses

It is a staircase having asingle 0 straight 1ight o/stairs that connect twolevels or 1oor in a building.

 The construction is muchsimpler and less timeconsuming.

(ower the ris2s o/accidents as it we get clearview o/ all stairs .

,rawbac2 is it re3uiremore space .

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'%!"TE" T%"& ST!I"S

It is de4ned as change indirection o/ 1ight by 56degree either in le/t or rightdirection. These stairs can be

obtained by providing3uarter space landing.

It is an 7(8 shaped

staircase.

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3 QUARTER TURN

When the length of stair room is

limited and ertical distance bet!een

t!o floor is large such type are stairs

are used.

This stairs can be of open ne!eltype.The stair changes its direction "

times !ith upper flight crossing the

 bottom one.

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*I%"+!TE, ST!I"S

 The two narrow start/rom either side o/ mid-landing.9ery commonly used inpublic buildings.

In these type o/ stairsthe 1ight are so arrangedthat there is wide 1ight atthe start which are sub-divided into narrow 1ight

at the mid-landing. These type o/ stairs aremostly centrally located.

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CIRCULAR STAIRS

It re3uires less space .

 The stairs whenviewed /rom aboveappear to /ollow acircle with a singe

center o/ curvatureand large radius.

 The circular stairs arecommonly

constructed in "++0cast-iron and stone.

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SPIRAL STAIRS

 They are use /or higher levelwater tan2.

 These stairs are similarto circular stairs e:ceptthat the radius o/curvature is small and

the stairs may besupported by a centerpart.

 The spiral stair may beconstructed o/ cast-

iron0 mild-steel orconcrete.

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 !*"I+!TE, ST!I"S

 Timber stairs ; These are generally used in residentialbuilding because o/ there light weight.  These stairs are used where 4re resistance

is not o/ much importance.  The timber used should be /ree /rom /ungaldecay and insect attac2.etal stairs ; The stair o/ mild steel and cast-iron areused in /actories0 wor2shops. In these type o/ stairs riserare open.   These stairs ma2e lots o/ noise when usedby user. oreover it is 4re resistant.Pre-cast concrete stairs ; Pre-cast concrete units arenowadays available /or construction /or concrete stairs o/various shapes. They provide good strength to stairs.

 

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REFERENCES

*uilding +onstruction < S.P. !rora and S.P. *indra.

 ! to = Practical *uilding +onstruction and its anagement <

Sandeep antri.

*uilding Technology and aterials < 9.>. >umawat and Indrajeet. ?ain.