Steel pipe constraint profile steel type recycled concrete column-beam assembly type joint and mounting method

Abstract

The invention discloses a steel pipe constraint profile steel type recycled concrete column-beam assembly type joint and a mounting method. The joint is mainly composed of two frame columns, an external pipe sleeve, a connecting component and a profile steel concrete spiral stirrup beam, the external pipe sleeve is arranged between the joints of the two frame columns, the connecting component comprises a threaded fastener, a connecting plate, first H profile steel and U profile steel, the connecting plate is fixed to the frame columns and the external pipe sleeve through the threaded fastener, the first H profile steel is fixed to the connecting plate through the threaded fastener, the steel reinforced concrete spiral stirrup beam is internally provided with second H profile steel matched with the first H profile steel in shape, and the first H profile steel and the second H profile steel are in butt joint and are fixedly in butt joint through the U profile steel and the threaded fastener. The U profile steel is arranged in grooves of the first H profile steel and the second H profile steel, fastening connection is achieved through the threaded fastener, and therefore the structure is stable, and installation is convenient; and the construction method reduces the difficulty and complexity of field construction, and improves the construction efficiency.

Description

technical field [0001] The invention relates to the field of building technology, in particular to a steel pipe-constrained steel recycled concrete column-beam assembled node and an installation method. Background technique [0002] A large amount of waste concrete produced in urbanization construction, demolition and reconstruction of original buildings in cities, and serious damage to a large number of buildings caused by major earthquakes can be used as coarse aggregate to prepare recycled concrete, recycle waste concrete, and reduce waste concrete. Environmental pollution can reduce construction costs and save natural resources. Therefore, the effective use of recycled concrete in projects has become a major demand for recycling of building materials and recycling of construction waste. [0003] At present, the connection of steel bars in prefabricated beam-column joints mostly adopts mechanical connection, sleeve grouting connection and welding connection. The mechanic...

AI Technical Summary

Problems solved by technology

The mechanical connection of steel bars cannot guarantee the quality of the connectors during on-site construction, and the matching rate between the steel bars and the pre-processed connectors in the factory is extremely low, making it difficult to ensure the stability of internal force transmission in the steel bar connection

In the actual construction process of sleeve grouting connection, the number of sleeves and the closed appearance are not conducive to quality inspection, and the sleeve butt joint is complicated, and the amount of grouting cannot be controlled, which makes the construction process consume a lot of time and labor costs

Welded connections will have uneven internal stress, resulting in greater brittleness and hardness of steel bars, and special equipment is required for on-site operations, which consumes a lot of energy, easily pollutes the environment, and has higher requirements for the construction environment.

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