Staircase types for design as per the effective length and staircase support

Effective Length Of Staircase & Support Types for Design

It’s very important to understand that how to design a staircase with Staircase types for design. To design a staircase we have to find out the effective length of the stairs. This excel have been created for ACI 318-08 and BNBC 2020
 

See The Following Figure for a better understanding:

Stair Case-1
 
Le=L+x+y+bw/2+bws/2
where,
Le= Effective length
L= Going Horizontal length
x= Mid-Landing length
y= Top and bottom Landing length
bws/bw= Width of beam for strainer Beam as well as top and bottom landing beam
 
Get Stair Case Type -1 Excel Sheet – Click Here
 
 
 
Stair Case-2
 
Le=L+x/2+y/2
where,
Le= Effective length
L= Going Horizontal length
x= Mid-Landing length
y= Top and bottom Landing length
bws/bw= Width of beam for strainer Beam as well as top and bottom landing beam
 
Get Stair Case Type -2 Excel Sheet – Click Here
 
 
Staircase types for design manual and excel
Stair Case-3
 
Le=L+x+y/2+bws/2
where,
Le= Effective length
L= Going Horizontal length
x= Mid-Landing length
y= Top and bottom Landing length
bws/bw= Width of beam for strainer Beam as well as top and bottom landing beam
 
Get Stair Case Type -3 Excel Sheet – Click Here
 
 
Staircase types for design manual and excel
Stair Case-4
 
Le=L+y+bw/2+bws/2
where,
Le= Effective length
L= Going Horizontal length
x= Mid-Landing length
y= Top and bottom Landing length
bws/bw= Width of beam for strainer Beam as well as top and bottom landing beam
 
Get Stair Case Type -4 Excel Sheet – Click Here
 
 
Staircase types for design manual and excel
Stair Case-5
 
Le=L+y/2+bws/2
where,
Le= Effective length
L= Going Horizontal length
x= Mid-Landing length
y= Top and bottom Landing length
bws/bw= Width of beam for strainer Beam as well as top and bottom landing beam
 
Get Stair Case Type -5 Excel Sheet – Click Here
 
 
Staircase types for design manual and excel
 
Stair Case-6
 
Le=L+y+bw/2
where,
Le= Effective length
L= Going Horizontal length
x= Mid-Landing length
y= Top and bottom Landing length
bws/bw= Width of beam for strainer Beam as well as top and bottom landing beam
 
Get Stair Case Type -6 Excel Sheet – Click Here
 
Staircase types for design manual and excel
 
 
 
 
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