Beams made of reinforced concrete are crucial components of contemporary architecture. They create a material that can support large loads by fusing the strength of concrete with the steel’s reinforcing power. These beams are commonly found in the framework of buildings, bridges, and other structures where strength and durability are essential.
The addition of steel reinforcement is what distinguishes reinforced concrete beams from ordinary concrete beams. Although concrete handles compression very well, it is not as strong in tension. Reinforced concrete beams are far more durable and dependable because they can withstand both compression and tension forces thanks to the embedding of steel rods or mesh within the concrete.
Their adaptability is another important distinction. A wide range of applications can benefit from the design and shaping of reinforced concrete beams, which can be tailored to meet specific structural requirements. This flexibility is a huge benefit for the building industry because it enables engineers and architects to produce safer and more inventive designs.
You can better appreciate the intricacies of contemporary construction by being aware of the functions and advantages of reinforced concrete beams. These beams serve as an example of how mixing various materials can result in stronger, more durable constructions. It’s essential to understand reinforced concrete beams if you’re a professional in the industry or just interested in construction and want to know how our buildings hold up.
| Topic | Description |
| What is a reinforced concrete beam? | A reinforced concrete beam is a structural element made of concrete with steel reinforcement inside. It is used in construction to support loads and spans in buildings and bridges. |
| How is it different from regular beams? | Regular beams can be made of wood, steel, or concrete without reinforcement. Reinforced concrete beams have steel bars embedded in the concrete, which makes them stronger and more durable. |
- What is a beam
- How does a beam differ from an ordinary construction beam
- What is the beam made of
- Application areas
- Beam beams for formwork
- Marking of girders
- Cost
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What is a beam
The products made of reinforced concrete known as beams are used to join vertical structures, such as wall panels, hangers, and columns. These products support other components as well as the floors themselves at the same time. The building’s sturdy "skeleton," which ensures the geometric stability of the entire structure, is made possible by the concrete beams.
Beam supports lift the base, strengthen it, and take away any extra weight from it. These products made of reinforced concrete are also utilized in the building of large stairways for shopping centers, hangars, and many other places.
There are those who contend that there is little distinction between a beam and an RC beam, other than size. This isn’t totally accurate, though.
An essential structural component in construction, reinforced concrete beams are made to support weights and give buildings and bridges strength. Reinforced concrete beams combine the tensile strength of steel with the compressive strength of concrete, giving them greater durability and the ability to support heavier loads than traditional beams made entirely of wood or steel. This combination ensures that buildings and structures can withstand a variety of stresses and remain stable over time, allowing for more flexible design options and increased safety in construction projects.
How does a beam differ from an ordinary construction beam
Some builders frequently use the word "beam" to describe what a beam is. Although it can be considered a horizontal beam structure on the one hand, this is not totally accurate because
- A reinforced concrete beam performs special load-bearing functions. It accepts loads from all sides and is, in fact, the main supporting element of the structure"s frame. This element is characterized by a rather narrow functionality and a significant scope of application. In this case, the beam is rigidly connected to the posts (installed in a vertical position) of the main supporting structure. This element is laid only in a horizontal position.
- The beam can be installed both horizontally and at an angle. But, this is not the only thing that distinguishes these building elements. In addition, the beam is an independent part of the structure and works mainly on bending.
You should never use a beam in place of the existing one. The beam elements do, in fact, stand out due to their increased weight, stiffness, and strength. Consequently, the beam weighs less and is typically composed of hollow metal structures or wood. It is employed to support particular floors, like attics.
It’s clear from the picture alone that these two products serve distinct purposes.
As a result, it is clear how beams differ from beams: a beam is a general term that encompasses various kinds of supports. On the other hand, the beam has a more specialized purpose and is made with a unique technology built on stronger materials.
What is the beam made of
This class of product is composed of heavy concrete, ranging from B 22.5 to B 60. In warm weather, the resultant beams have a minimum strength of 75%, and in cold weather, they have a strength of roughly 85%. The ceiling beam also needs to be corrosion-resistant, fireproof, frost-resistant, and resistant to harsh environments.
Reinforcement is utilized during the production process because this kind of structure needs to be extremely durable. The best quality steel reinforcement cages are used to make the beam reinforcement; they are hot-rolled and thermomechanically strengthened.
GOST 18980-90 lays out stringent requirements that must be followed when producing these building elements. In addition, deviations from the standards may have a significant impact on the overall structure’s strength properties.
The quality of the manufactured structure will determine whether it can be used in a given area.
Application areas
The uses for which the product can be employed will be determined by the variations in design of reinforced concrete beams, so it is important to first take note of these. These "beams" come in three varieties:
- Single-shelf. Such a L-shaped product is designed to fix floors on one side only. Most often, single-shelf "blocks" are used for stairwells and when constructing the outer spans of residential and industrial buildings.
- Double-shelf beam. This T-shaped structure serves as a support for slabs on both sides, so it is best suited for medium-sized spans.
- Unshelf. Such a "beam" has a rectangular cross-section and is mainly used for floors of a certain type.
Moreover, beam structures are employed in the building of "collective planning" structures, particularly in cases where the premises are intended to have relatively high ceilings. These kinds of products are also widely used in modular construction.
Furthermore, they find application in the fabrication of formwork structures, fences, and window commissures.
Beam beams for formwork
The best method for building floor-to-ceiling partitions is to use beam-beam formwork. Such a structure is put together using:
- I-beams;
- braces, corners and other consumables;
- plywood;
- fasteners;
- beams made of metal or wood.
All of these components come together to form a sturdy beam formwork. This kind of structure can support loads as high as eight tons per "square." This is made possible specifically by the use of a metal beam for formwork, which has many clear benefits.
The tie screws can be positioned in the most practical locations if you utilize an element with a unique perforation rather than a standard "beam." This is particularly valid for beam-girder formwork used in column construction. It will be firmly fixed and take the proper position because of the design elements and qualities of the "beams."
The speed at which girder formwork is manufactured is another benefit. In comparison to its counterparts, this system can be set up faster.
The price of girder components for formwork and other kinds of constructions is directly influenced by the features of particular goods.
Marking of girders
Every product has a unique code, made up of both letters and numbers, on it. The meaning of letter abbreviations is as follows:
Such letter codes denoting a series indicate that the products were made in compliance with GOST. They are more trustworthy. We are discussing TU if the girder indicates a string of additional letter combinations.
The markings include numbers that represent the products’ dimensions in addition to the letters. Let’s take a "beam" with the RLP code 4.26-60 as an example. The first three letters indicate a single-shelf stair beam, as we already know. Let’s now examine the measurements. The product’s sides are 45 cm tall, according to the first digit. The circumference of the "beam" is 26 decimeters long, or 26 in total. The final digit, kgf / 1 m.p., denotes the presence of a load-bearing structural feature in the product.
Additionally, the cost of the construction beam will be computed based on the product dimensions.
Cost
A beam of the necessary size can be purchased from practically any production facility that produces products made of reinforced concrete. Regarding the cost of the item, the average costs for Moscow and St. Petersburg are displayed in the table below.
Products produced at private businesses in accordance with TU will be substantially less expensive. Nevertheless, there are risks associated with using these kinds of building structures.
Modern construction relies heavily on reinforced concrete beams because of their strength and longevity. Reinforced concrete beams, as opposed to conventional wooden or steel beams, combine the advantages of both materials and provide an improved resistance to stretching and bending forces. This makes them the perfect option for long spans and heavy loads in buildings and other structures.
The use of steel reinforcement is one of the main distinctions between other types of beams and reinforced concrete beams. While the concrete itself handles compressive forces, the steel bars or mesh embedded in the concrete aids in absorbing tensile forces. Because of this combination, reinforced concrete beams are able to withstand higher stresses than beams composed of just one material.
Beams made of reinforced concrete are not only very strong but also very versatile. They are able to be shaped and sized to fit the particular requirements of a project. Because of their adaptability, they can be used for a variety of purposes, from large-scale infrastructure projects like bridges and highways to residential buildings.
Overall, there are many benefits to using reinforced concrete beams in construction, such as increased strength, longevity, and adaptability. These beams are essential to the construction of sturdy, safe structures that can withstand the strains that are placed on them over time.
