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Design of Staircase with Central Stringer Beam
The risers and treads of the stairs have been supported by the staircase stringers. In addition, the stability of the stairs, the safety of the stairs and also the strength of the stairs have been ensured by the staircase stringers. The staircase stringer also helps to hold the weight of the steps and is involved in transferring the weight to the structural frame or ground.
Different types of staircase stringers
There are different types of staircase stringers that have been used in the buildings, which are as follows:
Open stringer
In these types of staircase stringers, the risers and treads are visible from the side and the top edge of the stringer.
Closed stringer
In this case, the sides of the stairs are not visible as the treads and risers have been fixed into the stringers. Thus, the closed stringer helps to provide an enclosed appearance.
Mono stringer
A single central stringer has been fixed in this type of staircase stringer, which helps to provide support to the steps from the middle.
Double stringer
In these types of staircase stringers, two central stringers have been placed, which helps to provide a symmetrical appearance.
Cut stringer
The cut stringers have been cut into a zigzag shape, which helps to provide support to the steps from underneath.
Centre beam stringer
These types of staircase stringers have been placed under the centre of the shapes. The centre beam stringer is also known as the spine stringer, which is appropriate for the curved stairs.
There are several functions of the cantilever retaining wall, which are as follows:
Concept about Central Stringer Staircase
The central stringer staircase is also known as the mono-stringer staircase, which helps to provide support to the treads. These types of staircases have been located centrally, underneath the treads. In the case of the open curved or spiral stairs, the central stringer staircase is visible. The central stringer staircase has been treated as a design element. Different types of central stringer staircases can be made by using different types of materials, which helps to create different impressions. The central stringer staircase helps to promote a sense of lightness and openness in the building, which helps to provide a pleasing look.
Materials that have been used in designing the Stringer Staircase
Wooden staircase
In these types of stringer staircases, a central wooden stringer has been used, which helps to provide solidity to the staircase. These types of stringer staircase are one of the cheapest staircase designs, in which the tread supports have been made of aluminium tube sections or rectangular steel.
Metal staircase
In these types of stringer staircases, metal treads have been used. The metal staircase is not as popular as the other types of staircase, as these types of staircase are too smooth and can be worn out over time. Though the metal staircase is strong enough to tolerate the external atmospheric elements. The metal staircase has been used in different industrial applications and also in the fire escape areas outside the building.
Stone staircase
In these types of staircases, marble, corian or granite has been used to make the stone tread. In this case, the stone tread should have to be made of thick sections, as thinner sections have the chances of being broken or sag at the end.
Glass staircase
In the case of admitting light into the space through the levels of the staircases, the glass staircase is the best option.
Procedure for fixing the Central Stringer Staircase
In the case of fixing the central stringer staircase in the building, the usage of stronger materials is required as compared to the traditional enclosed or closed stairs. The stronger materials are required as the central stringer staircase has to support the treads alone. The design procedure of the central stringer staircase has to be done in consultation with the structural engineers and design professionals. The construction and installation of the central stringer staircase is relatively expensive as compared to the traditional staircase designs.
Benefits of installing a Central Stringer Staircase
There are numerous benefits of using the central stringer staircase in the building, which are as follows:
- The central stringer staircase is space-saving as compared to the other types of staircases. There is an absence of risers, which allows for the open staircase designs in the building. The central stringer staircase helps to de-clutter the space of the building for a sense of grandeur. This feature makes the central stringer staircase appropriate for the small spaces in the building.
- The absence of risers in the central stringer staircase and the open effect feature helps to allow the lights to pass. This helps to achieve a brighter space in the building.
- Due to versatility and aesthetic appearance, the central stringer staircase can be preferred for installation in a wide range of sectors.
- The central stringer staircase has been widely used for the industrial style decor. In addition, the central stringer staircase is also perfect for the modern and urban decor, as per the user’s desire.
- The central stringer staircase is heavy and also long-term durable.
