Steel structures
Power transmission structures
One of the most important industries in the world, on which all other industries are undoubtedly dependent, is the electricity industry.
Electricity distribution and transmission networks, which are spread like vital arteries all over the world, can be divided into two groups of ground transmission lines that are used in residential and urban areas with high density and aerial transmission lines that are more used in remote and sparsely populated areas between cities. They are used in the classification that power transmission masts are considered as one of its main components in overhead transmission lines.
Power transmission masts can be structurally divided into two groups: Lattice masts and Monopole masts. They are also divided into two categories according to the conditions of placement in the line route due to their height and angle, which include Suspension Towers, which are mostly in the transit and direct route, and Tension Towers. which are in an angled direction, and these masts are heavier in terms of loading compared to hanging masts.
Power transmission masts, due to keeping electrical conductors at a certain distance from the ground, must have numerous calculations and analyzes for loading and mechanical forces in the worst environmental and atmospheric conditions, which is why the material used in their construction is mostly ST iron. 37 and ST.44 and ST.52 and for connecting the members high grade and resistant bolts and nuts are used and according to the number of members of these structures and the high cost of their construction, implementation and installation, in order to prevent Corrosion and rusting of all its components are hot galvanized
As it was said, for the optimal transmission of electricity distribution and transmission, transmission stations are located at the beginning or end of power transmission lines, which are used to reduce, divide or strengthen the transmitted electric power.
The power transmission stations are in the types of strong, medium and weak pressure stations, the components of which are for the construction of gantries and basic structures of the equipment, such as lattice power transmission masts, which all calculation, analysis and design points should be Build and implement.
These structures are also hot galvanized to resist corrosion and rust.
Telecommunication structures
Self-standing masts are referred to as masts that have 3 to 4 bases and the rest of the components are connected by mesh.
This type of masts has the ability to support all types of antennas and withstand the force of all kinds of winds, compared to the relevant design and calculations.
3-base self-standing masts are designed and produced in two ways:
1) Self-standing masts with tubular bases, where the connection of the sections is flanged and its internal components are cornered, which are welded and bolted together.
2) Self-standing masts with corner bases, where the mast bases are at an angle of 60 degrees, and its components and connections are all connected with bolts and nuts.
Self-standing masts with 4 legs, all its components are made of corner and its parts are connected to each other in the form of bolts and nuts.
It is necessary to mention that this type of masts can hold more antennas and can also withstand high winds.
Monopole masts are designed and produced in tubular and multifaceted form.
Monopole masts, like self-standing masts, have the ability to support multiple antennas, and the connection of the sections is flanged, and the length of the sections is 6 meters.
Due to the small size of these masts, they are suitable foundations for the use of telecommunication systems within the city, therefore most of the telecommunication and radio antennas and mobile BTS are installed on these foundations in the cities.
The coating surface of these masts is also hot galvanized to prevent corrosion and rust.
Industrial structures and foundations
The use of lightning arrester towers has a special place in refineries – electric substations – gas pressure boosting stations – airport facilities – refueling stations, etc., which is used with the design of the earth system.
These structures are designed and produced in tubular or multi-faceted form at different heights, and depending on the design of these structures, they can have ladders and platforms at the top of the foundations and facilities like this.
The general principles of lightning arrester towers are that the highest point of each conductor has the highest probability of being hit by lightning. Accordingly, according to the usual standards, the head of the lightning arrester should be at least 2 meters higher than all the covered points.
Video surveillance and security systems have been used for several years as an important tool in creating security.
Among the complementary parts in this regard, we can mention the masts and supports for video surveillance devices and earthing systems.
The camera supporting masts can be designed and produced in the form of a tube – multifaceted or even mesh, which requires the use of specialized software and technical experts, in this regard, several important points can be mentioned:
1) Location
2) How to install the mast
3) The required height and angle
4) How the support surface and contact of the camera with the mast
5) Appearance patterns of the mast
The suitable coating for these masts was hot galvanized to prevent corrosion and rust.