Steel-structure composite square wood

Abstract

The invention discloses a steel-structure composite square wood, which comprises a rectangular steel; a sleeper body is arranged in the rectangular steel; and the rectangular steel and the sleeper body are fixed through interference fit. The sleeper body and the rectangular steel are fixed through interference fit, so that the slit and space between the sleeper body and the rectangular steel are little; wood decay speed and rectangular steel corrosion speed are lowered; the service life of the composite square wood is more than doubled; the rectangular steel with a wall thickness of 0.6mm-0.8mm is used under the premise that safety and quality are not influenced, at the same time, a nail can be nailed in at any side, and the integral weight is lower than existing composite sleepers; compared with existing square woods, usage amount is greatly reduced; at the same time, the usage amounts of rack pipes and fasteners are reduced; recovery rate of the composite square woods is raised; the construction usage cost is reduced by more than 50% directly; compared with existing square wood support, the support speed can be raised by 1 / 3; important indexes like flatness and luminosity of casted concrete are much better than a general square wood.

Description

technical field [0001] The invention relates to a tool for building construction, in particular to a steel structure composite wooden square. Background technique [0002] In the prior art, the pouring of reinforced concrete in the construction field is supported by traditional wooden beams. The loss of wooden beams during use is quite large. Carpenters often saw off long wooden beams, resulting in waste, and the deformation of wooden beams is relatively large. , many are difficult to reuse. The applicant invented the composite wooden beam in 2009, and applied for an invention patent on September 22, 2009. The patent number is: 20092031099.4, and the name is: a composite wooden beam used for supporting reinforced concrete components. The main body is Wood is installed in the C-shaped steel, and a pre-tightening hole is set on the opposite side of the long opening of the C-shaped steel, and fixed with screws; later, the applicant found that there are certain problems in this...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the pouring of reinforced concrete in the construction field is supported by traditional wooden beams. The loss of wooden beams during use is quite large. Carpenters often saw off long wooden beams, resulting in waste, and the deformation of wooden beams is relatively large. , many are difficult to reuse

The applicant invented the composite wooden beam in 2009, and applied for an invention patent on September 22, 2009. The patent number is: 20092031099.4, and the name is: a composite wooden beam used for supporting reinforced concrete components. The main body is Wood is installed in the C-shaped steel, and a pre-tightening hole is set on the opposite side of the long opening of the C-shaped steel, and fixed with screws; later, the applicant found that there are certain problems in this structure: the processing technology is relatively cumbersome and the structure is complicated. After research and improvement, he applied for a second-generation patent on November 24, 2011. The patent number is: ZL201120472702.1, and the name is iron composite wood beams for building construction formwork, but it also has defects. , made improvements after the applicant's research, and applied for a third-generation patent on November 23, 2012. The application number is: 201220626156.7, and the name is: Composite wooden frame for building construction formwork

However, it still has certain problems: 1. There is always a part of the wood exposed, which is easy to get water and damp, which will cause the wood to rot and damage, and the rainwater from the outside will easily enter the gap between the steel and the wood, and it will be damaged under the influence of the ash layer impurities. Accelerate the corrosion and shorten the service life of itself; 2. The use of such a wooden frame structure is limited, and only one side of the opening can be used for fixing nails. Neighboring demolition can be turned over; 3 The processing technology is complicated, resulting in increased production costs

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