FRP externally-wrapped crossed steel reinforced concrete column-H-shaped steel beam connecting joint and mounting method

Abstract

The invention relates to an FRP externally-wrapped crossed steel reinforced concrete column-H-shaped steel beam connecting joint and a mounting method, and belongs to the field of design of a building structure beam-column joint. The FRP externally-wrapped crossed steel reinforced concrete column-H-shaped steel beam connecting joint comprises an FRP externally-wrapped cross-shaped steel reinforced concrete column, an H-shaped steel beam and a square joint connecting sleeve, the FRP externally-wrapped cross-shaped steel reinforced concrete column comprises an upper column and a lower column, the square joint connecting sleeve is located between the upper column and the lower column, and the upper column and the lower column are connected with the square joint connecting sleeve through column end opening connecting plates correspondingly; and the H-shaped steel beam is fixedly connected with the column end opening connecting plates and the square joint connecting sleeve. By adopting the design of vertical force transfer of steel bars, the vertical connection of the joint is greatly enhanced, and the overall structural performance of the joint is enhanced.

Description

technical field [0001] The invention relates to an FRP outsourcing cross-shaped steel-reinforced concrete column-H-shaped steel beam connection node designed for vertical force transmission of steel bars and an installation method, belonging to the field of beam-column node design of building structures. Background technique [0002] With the continuous development of urbanization, green buildings using high-performance new materials have gradually become the development direction of the construction industry. Among them, fiber reinforced plastic (FRP) is a high-performance new material made of fiber material and matrix material (resin) mixed in a certain proportion. It has the advantages of light weight, high strength, corrosion resistance, good thermal conductivity, and good processability. [0003] The existing concrete-filled steel tube structure is widely used in super high-rise buildings because it better exerts the bending resistance of steel and the compression resis...

AI Technical Summary

Problems solved by technology

In the coastal environment, steel pipes are prone to corrosion, which greatly affects the safety and durability of the structure.

In recent years, although FRP materials have been continuously used as building materials for building structure reinforcement and earthquake resistance, once the concrete inside the FRP outer-wrapped columns is crushed under the action of earthquakes, the structural performance of the outer-wrapped FRP materials will also change accordingly. significantly reduced, leading to structural failure

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