- Due to the use of hollow blocks and the removal of concrete from the tensile zone, there is a significant saving in concrete consumption.
- Due to the reduction of space Concrete by using blocks in the tension zone, the consumption of steel reinforcements is reduced, which is very suitable economically.
- Due to the industrial production of block beams in the factory, more suitable quality is achieved and human power Less is needed.
The use of block beam roofs is very common in conventional buildings.
One of the most important advantages of block beam roofs compared to other roofs such as vaulted roofs and integrated reinforced concrete slabs can be The following mentioned:
- Due to the light weight of the beams, it is possible to carry and install them by workers, and in buildings with low floors, it eliminates the need to use a crane.
- Due to the fact that the block beams are prefabricated, the installation of the roof is very quick and easy, and there is no need for expert workers who are employed for molding and reinforcing reinforced concrete roofs.
- Form The arrangement under the roof is limited only to piling and installing four lathes at certain intervals to provide temporary supports for the beams. From the operational point of view of using block beam ceilings. >It will increase the speed of action and there is no need for costly and time-consuming workshop work.
In block beam roofs, concreting is done integrally and less concrete is needed than conventional reinforced concrete roofs.
For example, for a conventional concrete roof with a thickness of 14 cm. 14.3 cubic meters of concrete per square meter is required, which is reduced to an average of 0.06 cubic meters in the block beam roof.
- According to the possibility of creating a rigid or semi-rigid diaphragm in the block beam roofs, by applying the necessary measures, these types of roofs are less seismic than other roofs. they have a better insulation than other roofs.
- Hollow blocks in block beam roofs act as thermal insulation.
- Due to the production of beams in factories and prefabricated due to the fact that the roof is flat (compared to other roofs such as vaulted ceilings), the thickness of the joinery is minimized and as a result The dead load of the roof is reduced.
Marjan Momennejad
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