Light Steel frame in Iran

What is light steel frame structure?

What is light steel frame structure? In the last few years, the construction industry has grown a lot, and new methods for building different structures have caused the speed and quality of building structures to be very different from the past. LSF structure LSF is also one of the prefabricated building systems that has been used as one of the successful methods of mass production of housing in the last two decades.

Every year, new technologies enter the construction industry, the purpose of implementing and developing many of them is to minimize the weight of steel and concrete structures. Achieving this goal is especially important for earthquake-prone countries like Iran. light steel frame structure is one of the suitable building systems to achieve this goal. The history of using these building systems dates back to 1950, but its widespread use has started since the 1990s. In this article, we will fully review this construction style technology.

The main reason for the use of LSF structures in the building and construction industry is their resistance to earthquakes and their lightness and overall reduction in the weight of the building, which has made these structures have many fans in the world and in different countries. to attract In fact, the lsf structure is made of thin-walled steel sections, which are connected using rolling operations on a thin metal sheet and form the lsf structure.

The advantages of the light steel frame structure are many, among the most important of them, we can mention the high speed in the implementation of the building structure, compatibility with the environment, resistance to earthquakes and earthquakes, as well as its economy, and its most important feature, which is its pre-fabrication. which makes this structure has many fans in Iran and is used to build various types of prefabricated houses.

In the following, I will introduce you to the benefits of LSF structures and how to implement such structures and how to implement LSF structures and compare the LSF system with steel and concrete frame buildings and the reasons for using LSF structures. We will pay in the country.

The LSF structure has been produced and supplied in developed countries for many years and for the past two decades, and it has been used as a very practical and fast solution for building construction. Due to the progress of science and the quickness and effectiveness of these types of structures, these types of structures have attracted the attention of heads of states and officials in the field of construction and housing.

According to the many studies that have been done on these LSF structures, this structure has passed its test well and with the advantages that we have mentioned above, it has been able to be one of the fast and reliable ways. To be used for building houses and villas. LSF construction industry in our country is considered as a new and growing system and has attracted many fans over time.

As in the new century, we see the growth of technology in various fields, the construction industry is not exempt from this, and in the construction of various buildings, we also see the use of new tools and buildings with up-to-date technologies. In recent years, increasing the durability of the building and its useful life, and of course its resistance to earthquakes, are among the most important standards for the construction of buildings in the world.

On the other hand, these types of structures help to solve the problem of housing shortage at the global level as soon as possible, and different countries and senior decision makers of these countries are considering to use new systems such as LSF structures to produce build lots of buildings to solve the problem of housing shortage in their country as soon as possible.

The use of new and industrial and prefabricated methods for the production of new and of course modern and advanced buildings has caused such structures to gradually replace traditional methods such as the use of traditional building materials.

The use of new technologies and various new methods in the construction industry has caused the quality of construction to increase to a great extent and the use of traditional materials has gradually decreased significantly in advanced countries as well as Iran. Of course, we have to say that due to the fact that such structures are gradually growing in Iran, and those who intend to buy such structures sometimes hesitate.

We must say that in Iran, the growth of such structures is slightly lower than the global norm, but if such structures are used in a country like Iran, which is located on the earthquake belt, it will cause much less accidents and damage in the event of such incidents. to be

Application of light steel frame structure :
Multi-unit residential buildings up to 5 floors
Sports and educational complexes
Factories and industrial workshops
Construction of mezzanine in spaces with high height
Adding rooftop floors to a building
Construction of residential settlements when necessary in the least possible time
In general, the construction of any structure and building that faces floor restrictions.
Advantages of lsf structure

As we mentioned above, these LSF structures help to solve the lack of resources for the supply of construction materials, and in the construction of buildings, there is a great saving in the consumption of materials, and the materials are completely optimized and engineered. to be used for the construction of structures and buildings. LSF constructions LSF uses cold rolled thin wall sections for construction, which increases the speed of the project to a great extent. Below we will mention the things that increase the desire to use such structures.

As we said, the resources for providing building materials are limited, and for optimal use of building materials, LSF structures should be used. Such structures use cold-rolled thin-walled sections, which have higher resistance to weight than hot-rolled sections, which makes replacing these structures with heavy steel sections increase productivity in the construction industry. to be

Considering that the price of materials is growing in most countries of the world, and this has caused the use of LSF structures and cold rolled materials at a very reasonable price due to the simplicity of their production and the lack of time required to produce them. Compared to other building materials, it is available to those who are looking for construction.

To build these types of LSF structures, you need less resources to provide building materials and less cost for construction, which makes us see a great speed in the cost and time spent for construction, and it is completely economical in this field. let’s search

One of the positive points and very noticeable advantages of lsf structures is the speed of construction of such structures. The time spent for the production and use of building materials is very high compared to cold-rolled sections and hot-rolled sections with prefabricated concrete sections, and it makes those for whom the speed of construction is important to build various structures from the structure. Use lsf. So, when speed is important for the construction of a building, we suggest considering the LSF structure as the first structure to be built.

light steel frame structures have many potential advantages due to their structural features, the most important of which are the following:

Very low weight compared to other types of structures
The simplicity of their installation and implementation and subsequently reducing labor costs and downtime
The possibility of mass production and implementation of a large number of structures in the shortest possible time
High and uniform quality in all structures
High resistance and hardness
The possibility of implementing and installing the structure in all weather conditions
The ability to completely recycle materials and very little need for other non-recyclable materials
High resistance to heat and fire
High resistance to chemical corrosion and weathering
High flexibility in their implementation
Very long life
High resistance to earthquakes
Resistance to pests

How to implement the light steel frame structure

The implementation of LSF construction system is the same as other construction systems in the world. In this way, first architectural and structural designs and then executive plans should be produced and prepared, and then based on them, the structure should be implemented. To build these types of structures, there are things that we can introduce to you in order.

the foundation

The first stage can be named as foundation. At this stage, in order to establish the foundation system and install the walls, a 40 to 50 cm deep strip should be implemented, then after the reinforcement, concreting, and molding at standard intervals, the walls can be implemented using them. . Usually, the standard distances are between 40 and 60 cm, and the first stage is called the foundation stage.

Walls

After the implementation of the foundation, it is time to erect the walls. To build the walls using the anchor bolts that were already used for this purpose, first the floor tracks must be completely installed and then the masters are placed inside the track in a sliding manner. In this section, track means the horizontal parts that cover the masters from above and below in a sliding manner.

The masters are also the main members of the walls and their role is to bear the gravity loads. Therefore, the components of the LSF structure include non-load-bearing and load-bearing walls like other structures. As we mentioned above, masters and tracks have the role of load-bearing and non-load-bearing walls, which are used as vertical and lateral load panels.

In this way, the load-bearing walls transmit the vertical loads of the building and maintain the external facade, and absorb the side loads of the building against wind and earthquakes, which can completely protect LSF buildings against earthquakes and storms and reduce the pressure of the structure. They keep perfectly.

On the opposite side, there are non-load-bearing walls that are used to separate the interior spaces of the building. Steel masters are usually drilled to pass the facilities in advance and by default as indicated in the drawings, and these masters are completely connected from the top and bottom with intervals of 40 to 60 cm.

In the lsf construction system, the walls are made in the form of panels by connecting the so-called wind-sealed steel masters, then by installing plaster panels. If you add wind braces in this way, it makes the resistance against external loads such as wind and earthquake more resistant and makes these walls able to withstand a lot of pressure against wind and earthquakes and side pressures.

The difference between bracing in light steel frame and steel structures

A very interesting point for the implementation of braces in the LSF structure is that in steel structures, the braces are cross-connected only at the two ends of the mold itself, and there is no other connection. But in the LSF system, in addition to the end connections, the braces are also connected to all the middle masters using self-tapping screws, which increases the strength of the structure to a great extent and is one of the other advantages of using the structure. LSFs are lsf, which have high resistance.

ceiling

There are various methods for the implementation of the roof in LSF structures and we can have roofs in LSF systems in the form of simple forms or cross roofs. Below we mention two types of the most common methods of implementing roofs of lsf structures. The first method is hard trusses, which usually completely cover the building from the front to the back, and the second method is the flat beam system, which is used between supports and load-bearing walls to implement flat roofs.

To build middle ceilings in the LSF system, the beams are usually placed along the walls and each of the beams transfers its load directly to the masters. Such parts are usually made and produced with Z or C shapes. For covering the roof, it is usually done by pouring concrete or by installing plaster and wooden boards. In places where there are strong winds or earthquakes, the roof frame should also be braced.

light steel frame structure facilities

As we mentioned them above, for the implementation of LSF structures and such structures, they have been placed in the mapping from the beginning, and holes have been used throughout the structure to pass and install the facilities. Due to the fact that such structures are prefabricated and use screw connections, for this reason access to the connections for repair, restoration or replacement of some parts is easily possible. This case is also considered as another advantage of LSF systems, which makes it possible to easily remove or replace that part in case of any problem, which makes the useful life of the building up to increase greatly.

The last word of tecsaco

Undoubtedly, in a country like Iran, using the light steel frame structure can be very justified for various reasons. The abundance of mineral resources and the country’s earthquake-proneness are among the important reasons for using these very light structures. Prefabricated and lightweight structures have very high resistance and strength. On the other hand, the implementation and installation of these structures in any scale will be done as soon as possible.