Beam column or beam-beam butt joint node structure suitable for assembly type PEC and construction method thereof

Abstract

The invention discloses a beam column or beam-beam butt joint node structure suitable for an assembly type PEC. The beam column or beam-beam butt joint node structure comprises an H-shaped node steelstructure section, a stiffening rib plate, a heat insulation filling piece and a node sealing plate, wherein the H-shaped node steel structure section is integrally formed on or fixedly connected to amain body of a prefabricated beam steel component, and the H-shaped node steel structure section is used for being welded to the side face of a prefabricated column steel component or the end face ofthe H-shaped node steel structure section of another prefabricated beam steel component. The invention further discloses a construction method of the beam column or beam-beam butt joint node structure. The construction method comprises the steps of H-shaped node steel structure section reservation, node positioning connection, node cavity filling, node cavity sealing and post-repair coating. According to the beam column or beam-beam butt joint node structure and the construction method thereof, materials are saved, the cost is low, the misalignment problem of butt joint of a prefabricated beam and a bracket is avoided, the overall structure stability and stress are good, the construction method simplifies the process, manpower and material resources are saved, the working period is shortened, the situations of slurry leakage pollution and exposed ribs and corrosion after form removal are avoided, building waste is not formed due to the removed formwork, and the construction process isefficient and environmentally friendly.

Description

technical field [0001] The invention relates to the technical field, in particular to a beam-to-column or beam-to-beam connection node structure and a construction method suitable for an assembled PEC. Background technique [0002] In order to implement the concept of green development, improve the quality and quality of construction projects, promote the deep integration of the construction industry and information industrialization, realize the reform of the construction industry, cultivate new industries and new kinetic energy, and realize the sustainable development of the construction industry. In recent years, the state has issued intensive policies for the construction industry from the strategic development level, encouraging and vigorously promoting prefabricated buildings. [0003] At present, partially clad steel-concrete composite structures (referred to as PEC structures) are widely used in prefabricated structures. The basic form of the cross-section is to fill...

AI Technical Summary

Problems solved by technology

[0010] The technical purpose of the present invention is to provide a beam-to-column or beam-to-beam connection node structure suitable for prefabricated PEC, which solves the problems of high construction cost, easy slurry leakage and pollution during construction, and easy occurrence of slippage during construction in the node structure of traditional wet construction. For the problem of leg butt joint deviation, the specific technical solution is as follows: a beam-column or beam-beam butt joint structure suitable for prefabricated PEC, including an "H" joint steel structure integrally formed or fixedly connected to the main body of the prefabricated beam steel member Section, the "H" type node steel section is used for welding with the side of the prefabricated column steel member or with the end face of the "H" type node steel section of another prefabricated beam steel member; the "H" type The node steel section includes an upper flange, a lower flange and a web, and a node cavity is formed between the upper flange and the lower flange, and also includes a stiffener, a thermal insulation filler and a node sealing plate. The stiffener plate separates the "H"-shaped node steel section from the main body of the prefabricated beam steel member to which it belongs; the heat insulation filler and the node sealing plate are installed in the node cavity, and the The node sealing plate seals the heat insulation filler; the upper end of the node sealing plate is welded to the upper flange and the lower end is welded to the lower flange, and the left and right ends of the node sealing plate are respectively Welding with the side of the prefabricated column steel member, the stiffener of the prefabricated beam steel member or welding with the respective stiffeners of the prefabricated beam steel member on both sides

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