Combined main beam structure used for floor supporting

Abstract

The invention relates to the technical field of concrete floor supporting tools, in particular to a combined main beam structure used for floor supporting. The combined main beam structure comprises C-shaped steel connected with steel square pipe secondary beams, and the two ends of the C-shaped steel are connected with connecting plates. The C-shaped steel comprises a flat plate side face and further comprises a first edge face and a second edge face which are perpendicularly connected to the two ends of the flat plate side face; a plurality of pin columns connected with the steel square pipesecondary beams are evenly distributed on the first edge face, and a plurality of connecting holes connected with an early-dismantling head are evenly distributed on the second edge face; and an opening of the C-shaped steel is connected with a plurality of diagonal bracing plates. According to the combined main beam structure, the surface flatness and the bending deformation amount of the main beam structure can be ensured, and the requirement of building engineering for the flatness is easily met; and in use, the main beam structure is hung on the early-dismantling head through the connecting holes, the using mode that a traditional wood beam is connected and fixed through iron nails is replaced, and the various unfavorable problems that the traditional building wood beam is unsafe in construction, short in service life, complicated in construction, inconvenient to operate and the like can be solved.

Description

technical field [0001] The invention relates to the technical field of concrete floor support tools, and more particularly, to a composite main beam structure for floor support. Background technique [0002] The main beams of traditional buildings are made of solid wood squares, I-beams and iron nails on site; using wooden boards is easy to damage and not fireproof, while using steel is easy to rust and deform when it encounters alkaline substances such as water and cement. Materials are perishable. All of the above factors may lead to unsafe construction, and such beams have a short service life, heavy weight, complex assembly, and inconvenient operation; and the production and use of aluminum alloy main beams are relatively expensive, which increases the overall construction and use costs. It is also easy to lose during construction. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to overcome the deficiencies of the prior art, and to provide a...

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Problems solved by technology

[0002] The main girders of traditional buildings are made on site by connecting solid wood squares, I-beams and iron nails; the use of wooden boards is easy to damage and not fireproof, while the use of steel is easy to rust and deform when exposed to alkaline substances such as water and cement. perishable material

All the above factors may lead to unsafe construction, and this type of beam has short service life, heavy weight, complicated assembly, and inconvenient operation; while the aluminum alloy main beam is expensive to produce and use, which increases the overall construction and use cost. Easy to lose during construction

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