Anti-slip partially-encased type combined beam and prefabrication method thereof

Abstract

The invention discloses an anti-slip partially-encased type combined beam and a prefabrication method thereof. The anti-slip partially-encased type combined beam comprises channel steel (1), a steel plate (2) with a hole, a square steel pipe (3), an inner filling concrete (4) and end steel plates (5), wherein the upper side and lower side of the steel plate (2) with the hole are respectively welded with the channel steel (1); the square steel pipe (3) penetrates through the hole of the steel plate (2) with the hole, and is welded on the hole; the end steel plates (5) are welded at both ends ofthe channel steel (1), and the concrete (4) is filled into a steel skeleton of the beam member formed by the channel steel (1) and the steel plate (2) with the hole, so as to finally form the anti-slip partially-encased type combined beam. The anti-slip partially-encased type combined beam has the advantages that the self weight of the member can be reduced, the anti-sticking slip function is realized, and the section steel and the concrete are ensured to work together.

Description

technical field [0001] The invention relates to a partially outsourcing composite beam, in particular to an anti-slip partially outsourcing composite beam and a prefabrication method thereof. Background technique [0002] For traditional steel-concrete composite beams, when the beam is subjected to a positive bending moment, the concrete at the lower part of the beam will crack under tension. If the cracked concrete withdraws from work, it will not only fail to contribute to the bearing capacity of the beam member, but will also increase the self-weight of the member and increase the project cost. Therefore, removing this part of the concrete when pouring the components can not only reduce the waste of materials, but also reduce the burden on the vertical components and reduce the project cost. [0003] The bond-slip problem between the steel and concrete exists in the traditional partly encased composite beams. When the bond between steel and concrete fails, the component...

AI Technical Summary

Problems solved by technology

This requires piercing the beam, which will cause the steel bars in the beam to be broken, and the stiffness and bearing capacity of the beam will be greatly weakened

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