Combined box girder and processing method thereof

Abstract

The invention discloses a combined box girder, which is characterized in that the box girder comprises a box-shaped steel frame consisting of an upper flange, a lower flange and two web plates; the outer side of each web plate of the steel frame is fixedly provided with a first bamboo plate or a first wood plate; the upper surface of the upper flange of the steal frame is fixedly provided with a second bamboo plate or a second wood plate; and the lower surface of the lower flange of the steel frame is fixedly provided with a third bamboo plate or a third wood plate. The box girder has the advantages that the box girder replaces the conventional reinforced concrete box girder or pure steel box girder by the combination of the steel frame and the bamboo plates or the wood plates so as to reduce the self weight of the conventional box girder, reduce the cost, and ensure higher bearing capacity and rigidity of the box girder at the same time. The bamboo plates or the wood plates are fixedly adhered to the steal frame through an adhesive, so the box girder has the advantages of convenient processing, simple manufacture, high site assembling construction speed and high industrializationdegree, and is suitable for batch production in enterprises.

Description

technical field [0001] The invention relates to a beam and column structure in civil engineering, in particular to a processing method for a combined box beam. Background technique [0002] In the field of civil engineering, the frame structure is the most common structural form, and the cross-sectional forms of beams and columns constituting the frame structure generally include rectangle, I-shape, box shape, etc. Beams with rectangular cross-sections are easy to manufacture, time-saving and convenient, but consume a lot of materials and are heavy; while beams with non-solid cross-sections such as I-shaped and box-shaped beams can improve material utilization and reduce dead weight, which is a better development direction. However, the production of reinforced concrete box girders is complicated, and its promotion significance in small and medium-sized engineering structures is not great. Although the box girders made of pure steel are convenient to manufacture, the amount...

AI Technical Summary

Problems solved by technology

Beams with rectangular cross-sections are easy to make, time-saving and convenient, but they consume a lot of materials and are heavy; while beams with non-solid cross-sections such as I-shaped and box-shaped beams can improve material utilization and reduce dead weight, which is a better development direction

However, the production of reinforced concrete box girders is complicated, and the promotion significance in small and medium-sized engineering structures is not great. Although the box girders made of pure steel are convenient to manufacture, they use a large amount of steel and are expensive.

Bamboo and wood have good mechanical properties and high strength, and are suitable for use as structural components. In order to reduce the weight of traditional box girders and reduce costs, bamboo or wood can be used as box girders, but box girders are currently The processing technology of cross-section bamboo or wood components is immature, and processing is relatively difficult

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