Pre-stress carbon-fiber deformed steel bar strengthening structure for refrigeration storage structure nodes and method for producing strengthening structure

Abstract

The invention relates to a pre-stress carbon-fiber deformed steel bar strengthening structure for refrigeration storage structure nodes and a method for producing the strengthening structure. Precast beams are arranged at precast columns to form refrigeration storage structure nodes. The strengthening structure is characterized in that pore passages are arranged in the precast columns and the precast beams, and precast metal sleeves and wedge-bond anchorages are arranged in the pore passages; pre-stress carbon-fiber deformed steel bars are arranged in the precast metal sleeves; high-damping silicone rubber concrete is poured in the precast metal sleeves; the wedge-bond anchorages are tubular metal cylinders and composed of anchor rings and wedges; the wedges clamp the precast metal sleeves and the inner pre-stress carbon-fiber deformed steel bars. The carbon-fiber deformed steel bars have the advantages of being light, high in strength, low-temperature and high-temperature resistant, anti-corrosion, anti-fatigue and the like; besides the high-damping silicone rubber concrete also has the advantages of being low-temperature resistant, so that assembly reinforced concrete storage structure nodes can be effectively strengthened, the structure wholeness can be enhanced, and the storage anti-seismic property can be improved. The method is suitable for being promoted and applied and provided with apparent social and economic benefits.

Description

technical field [0001] The invention relates to a prestressed carbon fiber threaded steel reinforcement structure for an assembled cold storage structural node, and a construction preparation method for the prestressed carbon fiber threaded steel reinforcement structure for the cold storage structural node. It is especially suitable for the reinforced concrete warehouse structure at low temperature to effectively strengthen the structural nodes, enhance the integrity of the cold storage, and improve the seismic performance of the structure. Background technique [0002] In recent years, domestic cold storage has achieved rapid development in terms of storage capacity and other aspects. In the past, most of the cold storage was concentrated in large and medium-sized cities, but now a lot of cold storage is also built in small towns; in the past, cold storage was built for the country, and now some self-employed , The collective also began to build; in the past, cold storage w...

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Problems solved by technology

[0004] However, there will be great difficulties in applying prefabricated reinforced concrete cold storage structures in earthquake-resistant areas

The seismic performance of the prefabricated reinforced concrete warehouse structure has not been improved. There is a big reason that the connection of structural nodes affects the integrity of the warehouse structure to a certain extent and reduces the seismic performance of the cold storage.

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