How to Calculate Straight Concrete Stair?
- Step 1. Choose the measurement units, DU — mm, cm, m, inches, feet.
- Step 2. Choose the drawing color, CL — monochrome, color.
- Step 3. Choose the staircase type — left turn, LF, right turn, RG.
- Step 4. Input the stair, stairwell dimensions — total rise, Y*, total run, X**, stair width, Z***.
* from the 1nd floor level to the 2nd floor level
* total rise = stairwell height (if top step is on the 2nd floor level)
** total run = stairwell length (if upper floor slab non-overlapping staircase)
*** stair width = stairway width - Step 5. Input the steps parameters — quantity, QS, thickness, FSW, nosing, FSE*.
*nosing = tread overlap - Step 5.1. Select to install the top step below 2nd floor level or keep it at the 2nd floor level, SP.
- Step 6. Input the risers parameter — thickness, FHT.
- Step 7. Input the concrete frame parameters — thickness, BTH, rebar diameter, RED, rebar depth into concrete, RMP*, longitudinal rods spacing (horizontal), RHD**, longitudinal rodsspacing (vertical), RVD***.
* rebar depth = minimum distance from concrete base edge to rebar
** longitudinal rods spacing (horizontal) = horizontal distance between longitudinal rods
*** longitudinal rods spacing (vertical) = vertical distance between longitudinal rods - Step 8. Input the concrete platfrorm* parameters — thickness, PTH, length, PLN.
* platform on 2nd floor - Step 9. Input the balustrade parameters — baluster width, BA, baluster height, RH, handrail thickness, RT, handrail width, RW.
- Step 10. Input the upper floor slab parameters* — thickness, ST, overlap, SX.
* required for visualization only - Step 11. Input the wall parameter* — thickness, WT.
* required for visualization only - Step 12. Please check all entered values, click the «Calculate» button and get a Straight Concrete Staircase design.
Plans of Straight Reinforced Conrete Staircase — Layout Notations
