Reinforced concrete flights of stairs

Staircases made of reinforced concrete are a common sight in contemporary architecture, providing strength and longevity. In addition to being practical, these staircases have a sleek, modern appearance that complements a variety of architectural designs. Commercial, industrial, or residential buildings can all benefit from the use of reinforced concrete stairs.

The capacity of reinforced concrete stairs to bear large loads without losing stability is one of its main benefits. The reinforcement, which is typically in the form of steel bars, gives the concrete more strength and prevents cracking and other types of damage to the stairs. Because of this, they are perfect for high-traffic areas where longevity is essential.

Furthermore, the versatility of reinforced concrete in design enables a wide range of forms and arrangements, from simple spiral patterns to straight flights. Because of their adaptability, staircases may be designed by architects and builders to fulfill practical needs while also enhancing a building’s visual appeal.

Stairs made of reinforced concrete need less maintenance than stairs made of other materials. Their resistance to weather, fire, and wear and tear guarantees a long lifespan with little maintenance. Because of this, they end up being a very affordable choice that benefits builders and property owners alike.

Features of the design of flights of stairs

A structure made up of steps and a supporting base is called a flight of stairs. Large buildings often have a special platform between the floors, to which two flights—one at the top and one at the bottom—are attached to create a flight of stairs. Platforms made of reinforced concrete flights of stairs with standard-sized platforms are available from manufacturers of reinforced concrete products; however, more frequently, the platform is a separate component.

Staircases fall under the precast reinforced concrete category. This results in the production of:

  • One-piece structures, where beams or a slab serve as a support for the steps, the product may also include a platform.
  • Reinforced concrete steps that need to be mounted on steel stringers or stringers, concrete beams. Most often, straight stairs are mounted, but a prefabricated flight of stairs can also be rotary or circular.

There are a few types of reinforced concrete staircases that stand out:

  • LM – flat, the base for the steps is a reinforced slab.
  • LMF – steps rest on beam stringers. The upper and lower steps are equipped with a frieze, with the help of which they are attached to platforms of a suitable size.
  • LMP – monolithic spans of ribbed (beam) flights with one or two platforms. Installation of ready-made spans simplifies and increases the pace of construction, but this option is only suitable for standard buildings or when constructing structures specially designed for the use of ready-made spans.

Sizes of reinforced concrete flights

GOST technical requirements must be met by reinforced concrete stairs. Several aspects of the flight are controlled:

  • from 3 to 18 steps;
  • the height of each stage is 150-160 mm;
  • According to the requirements for evacuation routes in case of fire and other emergencies, the minimum permissible width is from 900 mm.

The typical design for stairs is 2000 mm in length and 900 mm in width. A series for securing marches with frizes is produced and made available.

The two minor staircases that are intended to be installed between floors that have a standard height are measured at 2700 mm, 2800 mm, 3000 mm, and 3300 mm in reinforced concrete stairwell marches that are manufactured in serial quantities. These kinds of designs are usually intended for structures constructed from large panels or with frame-panel technology.

The inclination angle is influenced by the stairs’ intended use. Stair marches that are intended to be installed at an angle of 45 to 70 degrees are permitted to be installed in industrial buildings, should the need arise to conserve useful space. The ideal inclination angle for residential and public buildings is between 25 and 40 degrees to facilitate easy floor-to-floor mobility.

Another crucial factor in determining the stairs’ convenience and safety is their width. The adult foot size and step width are taken into account when calculating the standard width. The range is 280 to 320 mm. The upper step may protrude over the lower one, with a maximum size of 50 mm allowed.

The anthropometric measurements of an adult with an average build are also taken into consideration when calculating the step height. Adherence to regulations is crucial for ensuring the security of stair climbing. The highest height that can be achieved (after finishing) is 160 mm.

The weight of a flight of stairs made of reinforced concrete is influenced by the following factors:

  • dimensions;
  • concrete grade;
  • the presence of half-landings in a solid structure;
  • type of support for steps (flat slab, beams)
  • the presence of overhead treads on the steps.

The table illustrates how the mass of a flight of stairs made of reinforced concrete depends on the standard sizes of the structure:

Flight grade Main dimensions Material consumption Mass of flight, t
L (mm) B (mm) Concrete, m3 Steel, kg
LMF 39.12.17-5 3913 1200 0.52 28.49 1.30
LMF 39.14.17-5 1350 0.57 28.94 1.43
LMF 39.15.17-5 1500 0.62 35.79 1.55
LMF 42.12.18-5 4249 1200 0.56 40.32 1.40
LMF 42.14.18-5 1350 0.61 40.80 1.53
LMF 42.15.18-5 1500 0.67 43.63 1.68
LMF 49.14.21-5 4946 1350 0.77 40.90 1.93
LMF 49.15.21-5 1500 0.83 48.94 2.08
LMF 49.17.21-5 1650 0.89 50.16 2.23

Finishing of flights

Staircases made of reinforced concrete have different finishing options, which serve both a protective and aesthetic purpose. Goods are produced by:

  • With an external coating of structural concrete. Layer thickness – 15 mm, the surface must be smooth.
  • With a polished coating of a mixture of marble chips with a binder – gray, colored or white cement.

You can finish the reinforced concrete structures after the installation of the flights of stairs and the completion of the construction project. Typically, the vertical surfaces of the steps are painted, as well as the bottom and sides of the flights. Ceramics, clinker, porcelain stoneware, and real or artificial stone are other materials used to make tiles. It is crucial that the platforms and steps have non-slip coverings that are resistant to wear.

Advantages of reinforced concrete flights

Both light-weight and heavy concrete with a medium density can be used to create solid stair flights and prefabricated structure components. Steel wire and corrugated rods are used to construct a reinforcement frame.

Flights of stairs are suitable for installation both inside buildings (interfloor, basement and basement stairs) and outside buildings. Reinforced concrete products that comply with GOST are designed for use in any region, regardless of climate and seismic activity.

Flights made of reinforced concrete have the following benefits:

  • reliability and durability;
  • wear resistance;
  • fire resistance (the fire resistance limit of reinforced concrete flights of stairs corresponds to the requirements for evacuation routes for people);
  • possibility of finishing with various materials;
  • undemanding to maintenance.

Building stairs should be as safe as possible and able to facilitate easy ascents and descents, especially in emergency scenarios requiring a mass exodus of building occupants. These requirements are fully met by standard flights of stairs made of reinforced concrete.

Staircases made of reinforced concrete are a common option in contemporary building due to their robustness, adaptability, and longevity. These staircases are perfect for both residential and commercial buildings because they can sustain large loads, withstand fire, and endure wear and tear. Furthermore, because of their flexible design options, they can be seamlessly incorporated into a variety of architectural styles, providing both practicality and visual appeal. For both new construction and renovations, reinforced concrete stairs offer a dependable and visually appealing option.

Conclusion

For multistory buildings, flights of stairs made of reinforced concrete are a sensible and affordable option. Ready-made flights are becoming more and more common in single-family home construction, even though lifting equipment is still required for the installation of precast reinforced concrete structures. Making accurate calculations and choosing reinforced concrete products with the necessary dimensions is crucial.

Aspect Details
Material Reinforced concrete
Strength Highly durable and robust
Usage Common in multi-story buildings
Advantages Fire-resistant, long-lasting
Installation Requires skilled labor
Maintenance Minimal maintenance needed
Cost Higher initial cost, but cost-effective over time

Stairs made of reinforced concrete are a dependable and long-lasting choice for both residential and commercial structures. They are incredibly strong and resilient to repeated heavy use. The stairs are made safe and strong by the use of reinforced concrete, which offers a strong base for any building.

The adaptability of reinforced concrete stairs is one of their key benefits. They are appropriate for a variety of architectural projects because they can be tailored to match different designs and styles. Reinforced concrete is adaptable and can be shaped to fit any type of staircase, be it a straightforward one or a more intricate spiral one.

Furthermore, these stairs require less upkeep than other materials. They can withstand considerable wear and damage for decades if given the right care. Because of their durability, reinforced concrete stairs end up being a more affordable purchase over time because they won’t require regular maintenance or replacement.

In conclusion, flights of stairs made of reinforced concrete offer unparalleled durability, design flexibility, and minimal maintenance needs. They offer stability and safety for many years to come, making them a sensible option for any construction project. Take into consideration the advantages of reinforced concrete stairs for your project if you’re planning a new build or renovation.

Video on the topic

Stair flights from the manufacturer at favorable prices.

Template for installation of flights of stairs PROMENADE EXPO block 2B 12 06 2025

Reinforced concrete stair steps

Manufacture of monolithic flights of stairs

ML staircases – customer review

Which aspect of concrete application are you most interested in?
Share to friends
Anna Vasilieva

Journalist with a technical education, specializing in construction topics. I can explain complex technical topics in simple and accessible language.

Rate author
StroyComfort1.com
Add a comment