A pvc-frp tube-confined steel concrete column-reinforced concrete beam cross joint

Abstract

The invention discloses an assembled PVC-FRP pipe restrained section steel concrete column-reinforced concrete beam cross-shaped node which comprises core section steel, U-shaped hidden brackets, circular steel pipe fasteners, core-passing anchor bolts, a node area longitudinal rib, a column tie rib and concrete. The core section steel which is formed through welding a section steel flange and a section steel web plate has a cross-shaped structure. The U-shaped hidden brackets are connected with the section steel flange through the high-strength bolts. The U-shaped hidden brackets are distributed in a crossed manner. The core-passing anchor bolts horizontally pass through the U-shaped hidden brackets and are reversely arranged in a staggered manner. Four sets of circular steel pipe fasteners are distributed among the U-shaped hidden brackets along a circumferential direction. The circular steel pipe fasteners are connected with and fixed to the U-shaped through the high-strength bolts.The column tie rib passes through a process hole on the U-shaped hidden bracket rib plate and is bond with a column longitudinal rib which passes through the node, thereby forming a steel reinforcement cage. According to the assembled PVC-FRP pipe restrained section steel concrete column-reinforced concrete beam cross-shaped node, quick splicing of the steel component in the node is realized by means of the high-strength bolts. The assembled PVC-FRP pipe restrained section steel concrete column-reinforced concrete beam cross-shaped node has advantages of high bearing force, high integrity, convenient construction, high industrialization degree, etc.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a PVC-FRP pipe-constrained steel concrete column-reinforced concrete beam cross-shaped joint. Background technique [0002] At present, the construction method in our country is mainly on-site wet work. During the construction process, there are problems such as complex on-site production, numerous manual operations, and serious waste of materials. Under the current economic situation, the traditional construction mode can no longer meet the needs of the development of industrialized buildings. [0003] The prefabricated structure refers to the prefabricated components in the processing plant or on-site, and through certain technical means, the prefabricated components are connected into a whole structure. The prefabricated structure has become a hot spot in the development of the construction industry due to its advantages of high production efficiency, convenient con...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the above-mentioned problems existing in the prior art, and provide a PVC-FRP pipe-constrained steel concrete column-reinforced concrete beam cross-shaped joint, which can effectively solve the current difficulties in site construction of existing joints, and the steel bars are not easy to process The function of providing a new type of node with high bearing capacity, good ductility and durability, convenient construction, high degree of industrialization, and strong integrity

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