The most common type of beam in Iran that most Iranian engineers use is a beam with a truss, which is made of a truss that is often made of rebar.
What is the Block joke?
Block beam is an efficient way to cover the roof of a building. Block beam is one of the common and popular methods in many countries including Iran. Block beam roofing quickly found a special place in construction. The block beam actually became common in many parts of Iran after the arched beam method and replaced it. Researches and studies on various structural and construction methods showed that the arched beam method has major weaknesses and especially in When an earthquake occurs, it shows poor performance and endangers the lives of the building's residents.
In a general definition, a block beam is a roof that consists of a combination of concrete beams, chromite, full beams and concrete slabs. In such roofs, cement blocks are used in the space between the beams to make the roof easier to install. to be Block beam can be used both in wooden structures and in concrete structures; It means that it is used in both types of frameworks that can be used in buildings. The most important task of the block beam is to bear the loads on the floor of the building and perform the role of a reliable roof and floor for the floors of your building. The block is placed in the category of roof types in the group of one-way slabs
Types of Block Job Ceiling
Concrete beam with concrete heel . Concrete beam with clay heel (clay or fondule beam) . Metal beam (chromite)
Roofing fan using joists is a combination of two methods of prefabricated concrete and in-situ concrete. Concrete joists, self-standing joists and non-self-standing joists are three widely used types of joists in Iran, and the most common of them are joists. It is a concrete block. One of the most high-quality and cheapest types of beams is the pre-stressed block beam, which can be used in long spans up to 12 meters high. Until some time ago, hollow blocks were used to fill the empty space between the beams, which could be made of clay or cement. These blocks, in addition to filling the empty space, can be used as a mold for concrete. the roof can also be used; But they do not bear any force and only have filling properties. Nowadays, the use of foam or polystyrene is preferred instead of cement and clay; because it is easy to implement and helps to reduce the weight of the building. In addition, it greatly reduces the duration of the roof construction, which is one of the important factors in building construction. The block is also reduced a lot.
