Fiber reinforce plastic (FRP) sectional material beam column joint capable of being assembled rapidly

Abstract

The invention discloses a fiber reinforce plastic (FRP) sectional material beam column joint capable of being assembled rapidly. The FRP sectional material beam column joint capable of being assembledrapidly comprises a FRP pipe concrete column with an embedded cross-shaped FRP sectional material, a box groove FRP sectional material concrete combined beam, a prefabricated joint and a matched bolt. A joint body is composed of two same parts and is assembled with the embedded cross-shaped FRP sectional material, and the beam is connected with the joint through an end part pre-embedded groove shape steel plate. The main construction method of the FRP sectional material beam column joint capable of being assembled rapidly comprises the steps that a column prefabricated FRP pipe and the cross-shaped FRP sectional material are placed in position; the joint is assembled correspondingly with the cross-shaped FRP sectional material extending from the column and the beamless connection direction bolt is tightened; the beam is hoisted in position, the beam end groove steel plate and the joint are opposite to a reserved bolt hole and the bolt is tightened; and a template is arranged in a supporting mode, and concrete in the column and the concrete at the joint are poured. The FRP sectional material beam column joint capable of being assembled rapidly is simple in construction and convenient to construct, can greatly improve the construction efficiency, and is easy to control the quality. Meanwhile, a force transferring route of the joint is distinct, the good energy consumption is achieved, and the safety of a main body structure can be well guaranteed.

Description

technical field [0001] The invention relates to the field of construction engineering, in particular to a fast-assembled FRP profile beam-column node. Background technique [0002] Modern buildings are facing more and more harsh environments such as highly corrosive, alternating wet and dry conditions, which pose a huge threat to the durability of traditional reinforced concrete structures. In order to fundamentally avoid problems such as corrosion, it is extremely effective to replace steel with high-performance composite materials with good corrosion resistance. The FRP material is not only light and high strength, but also has good corrosion resistance and strong designability, so it is a good alternative material. At present, there are many construction application cases using FRP profiles instead of steel, most of which belong to prefabricated structural systems. [0003] In the prefabricated structural system, although beams, columns and other components are easy to ...

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Problems solved by technology

[0004] The above-mentioned first two types of joints are complex in structure, difficult to pour, and have the disadvantages of local failure of the column that reduces the bearing capacity

And because there is no steel bar in the new beam (FRP is used instead of steel bar to bear the tensile force), it is not suitable for the node connection of the new prefabricated structural system represented by the FRP tubular concrete column with embedded FRP profile and the box-shaped FRP profile concrete composite beam.

Also because there is no steel in the new rapid assembly structure system, the third type of joint connection (welding and bolting) is not applicable

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