Externally-wrapped honeycomb channel steel composite beam and manufacturing method of regular hexagon honeycomb channel steel

Abstract

The invention discloses an externally-wrapped honeycomb channel steel composite beam. The externally-wrapped honeycomb channel steel composite beam comprises two pieces of honeycomb channel steel which are parallel and oppositely arranged, each honeycomb channel steel comprises a vertically-arranged web, a top flange steel plate and a lower flange steel plate, the top flange steel plates and the lower flange steel plates are horizontally connected to the upper ends and the lower ends of the webs, and through holes penetrating through the webs in the radial direction are formed in the webs in the length direction of the webs at intervals; the two pieces of honeycomb channel steel are connected and fixed through two rows of connecting steel lacing bars, the two ends of one row of connecting steel lacing bars are fixed to the top flange steel plates of the two pieces of honeycomb channel steel respectively, and the two ends of the other row of connecting steel lacing bars are fixed to the lower flange steel plates of the two pieces of honeycomb channel steel respectively; and the two pieces of honeycomb channel steel are connected to form a rectangular cavity framework, and the cavity is filled with concrete. The invention further provides a manufacturing method of the regular hexagon honeycomb channel steel. Equipment pipelines can pass through the beam while the size of the beam can be well reduced, and meanwhile the clear height of a building is increased; and due to the fact that the channel steel has rigidity and the strength, damage caused by the earthquake action can be well resisted.

Description

technical field [0001] The invention relates to the technical field of building structure channel steel prefabricated components, in particular to a method for manufacturing a honeycomb channel steel composite beam and a regular hexagonal honeycomb channel steel. Background technique [0002] With the acceleration of the modernization process, the emergence of large shopping malls and high-rise buildings reflects the increasing demand for architectural space. At the same time as the column spacing increases, the span of the beams increases, resulting in a gradual increase in the size of the beams, thereby reducing the clear height of the storey. At the same time, the complex equipment pipeline passing under the beam further reduces the net height. Increasing the height of the building or increasing the reinforcement ratio and cross-sectional size of the beams will further increase the cost of construction, and also increase the self-weight of the structure, which is very un...

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Problems solved by technology

However, increasing the height of the building or increasing the reinforcement ratio and cross-sectional size of the beam will further increase the cost and increase the self-weight of the structure, which is very unfavorable for earthquake action.

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