Most domestic properties have timber staircases. These are light, easily fitted and relatively cheap. However, in reality, without additional support being provided, they are limited to straight flights. Sometimes this does not fit in with the architectural requirements.
A reinforced concrete staircase on the other hand is much more adaptable and can be designed to suit almost any architectural layout with a minimum of support. Reinforced concrete staircases are either precast, where they are made in a factory and delivered to site or they can be cast in stitu. The cast in situ option is very useful when the access to the site is not very good, or when even greater flexibility is needed.
We need the following information to design an in situ concrete staircase:
architectural layouts or sketch drawings with dimensions of the stairwell area, showing the position of the supporting walls
the floor to floor height
All designs are carried out in accordance with BS 8110 (The structural use of concrete).
The calculations provided will be suitable for Building Regulation approval.