A prestressed self-resetting concrete truss structure and its assembly method

Abstract

The invention relates to the technical field of concrete truss assembly, in particular to a prestressed self-resetting concrete truss structure and assembly method as well as the assembly method of the prestressed self-resetting concrete truss structure. The prestressed self-resetting concrete truss structure comprises prefabricated concrete frame columns, angle iron and precast concrete trusses,wherein the left ends and the right ends of lower chords are sealed and anchored by pouring micro-expansion concrete into sections of steel box girders, the outer ends of the two sections of steel boxgirders are fixed to mild steel energy dissipation devices through high-strength friction type bolts, and the outer ends of the two mild steel energy dissipation devices are fixedly connected with the two prefabricated concrete frame columns through embedded bolts correspondingly. According to the prestressed self-resetting concrete truss structure and the assembly method thereof, a dry connection technology of prestressed tendons and high-strength bolts is adopted, the mild steel energy dissipation devices are used for buffering energy dissipation, the connection performance of the truss structure and a main body component is enhanced, the energy dissipation capacity of the structure is enhanced through energy dissipation elements, the anti-seismic property is improved, the maximum deformation of the structure under the earthquake action is controlled, meanwhile, under the earthquake action, the self-resetting capacity of the prestressed tendons is utilized, the residual deformationof the structure is reduced, and rapid repairing of the structure function is achieved.

Description

technical field [0001] The invention relates to the technical field of concrete truss assembly, in particular to a prestressed self-resetting concrete truss structure and an assembly method thereof. Background technique [0002] my country's construction industrialization level is relatively low, and prefabrication and assembly technology is backward. With the development of my country's economy, construction industrialization has become the development direction and inevitable trend of the construction industry. Most cities in our country are located in anti-seismic fortified areas, and the development of prefabricated structures needs to consider their anti-seismic capabilities. Compared with the beam structure, the prestressed concrete truss structure can not only meet the requirements of the pipeline and the line from the building, but also is conducive to the lighting of the building interior, and has the advantages of light weight, high rigidity, clear force, and conve...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of unreliable component connection, poor seismic performance and insufficient energy dissipation capacity proposed in the background technology, the present invention designs a prestressed self-resetting concrete truss structure and an assembly method thereof

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