Truss nest
One of the simplest and most modern sheds is the truss shed. The presence of unique parameters in its construction has made it stand out from other types of sheds. In terms of the materials used in the construction, it is similar to the sheet beam shed, but it is different in performing accurate technical calculations. The use of up-to-date engineering expertise in the construction of the truss shed has caused the use of steel parts to be at its lowest, as a result of the amount The weight of the structure is reduced and its endurance and durability are increased. Not using a lot of steel parts in the truss shed does not affect its safety and security. and this work has caused it to prevent the accumulation of weight in one point. Among the advantages of building a truss shed are low transportation costs, design of an arched or octagonal roof, ease of installation by a crane in Any number, the final price of creation is lower, its implementation without restrictions in wide openings and without columns, no restrictions in design and the ability to open the structure easily.
The beam nest
The oldest and most used sheds are sheet beam sheds due to the passage of time. Of course, don't forget that in the past, due to the lack of sufficient engineering knowledge, these types of sheds were more common.
Regarding the teaching of sheet beam shed construction in the past, all university graduates used this method and method of construction. For this reason, the number of sheet beam sheds in the country is more than other types. The construction of this type of sheds is obsolete in European countries, but it is still used and built in Asian countries such as Iraq, Afghanistan, Iran, etc.
The construction of sheet beam sheds is done using steel parts and black sheets. The shape of the roof of this type of shed is octagonal, which is created through welding. The construction of this type of shed faces many disadvantages. For example, it is not possible to build an opening with a length of more than 45 meters. Due to the use of many parts, the weight of this shed is more than usual, and as a result, its cost is higher than other structures. According to the given explanations, people prefer to replace the sheet beam shed with another shed structure. are less for construction, use sheet beam shed for this opening size.

UBM niches (UBM)
Formed and rolled galvanized sheets are used in the construction of this type of shed. The sheets are connected to each other by a special device called Samir. This is done to fasten the sheets together. But the thing to think about in this part is the possibility of the sheets being separated from each other due to contraction, expansion and strong vibrations caused by the force of the wind. The most common use of this type of shed is for structures with a maximum opening of 30 meters.
The low resistance of this type of shed against air humidity, rain and snow due to the use of spray insulation method causes that in a short period of time after the components It needs to be repaired and taken care of, and this itself causes an increase in consumption costs. The insulation used in this type of sheds is flammable and absorbs pollution. In addition, they will not have the ability to disinfect in any way, for this reason, this type of shed should not be used in hospitals, food processing, poultry or livestock industries. One of the advantages of the UBM shed is its low construction cost. It is similar to other sheds, but due to the length limit of the opening and the lack of resistance to humidity and weather changes, it is suggested to use other types of sheds.
Nodes based on appearance
🔸 Arched eaves
🔸 eaves with a common column
🔸 Single-slope eaves
🔸 Multi-opening eaves with columns
🔸 eaves with common columns in the middle
🔸 Single-slope eaves with a middle column
One-slope sole with middle columns
One-slope sole connected to the building



