Multi-stage damping flat beam-floor system based on solid-web spiral spring pin connection

Abstract

The invention discloses a multi-stage damping flat beam-floor system based on solid-web spiral spring pin connection, and belongs to the technical field of assembly type steel structure earthquake resistance. The system is composed of columns, short beams, flat beams, number-sign-shaped integral floor slabs, perforated plate type metal dampers, solid-web spiral spring pins for connecting the floorslabs and the flat beams, a filling layer and various connecting pieces for connecting the short beams and the flat beams. The system adopts prefabricated assembly construction, wet-method operationis not needed, and the construction period can be effectively shortened; under the action of an earthquake, the number-sign-shaped integral floor slabs can slide relative to the flat beams, the solid-web spiral spring pins can generate shear plastic deformation, a weakening joint and a weakening beam section can generate plastic deformation, the perforated plate type metal dampers can generate plastic deformation under the tension and compression action of the floor slabs, and the above-mentioned plastic deformation all can dissipate earthquake energy; and the effect of protecting overall safety of a building is achieved, meanwhile, the plastic deformation is controlled in a specific area so that post-earthquake component replacement can be conveniently realized so as to achieve the purpose of structural repairability.

Description

technical field [0001] The invention relates to a multi-stage shock-absorbing flat beam-floor system based on solid-web helical spring pin connection, and belongs to the field of anti-seismic technology of assembled steel structures. The system adopts the construction method of component factory prefabrication and on-site assembly, which avoids wet operation, is simple and fast in construction, and has safe and reliable performance. energy efficiency, and can more effectively guarantee the safety of the overall structure. Background technique [0002] Due to its short construction period, small manpower demand, high degree of industrialization, and the steel itself has the characteristics of high strength and high ductility, the prefabricated steel structure has superior seismic performance. Combining the aforementioned advantages, the prefabricated steel structure meets the general demands of modern society for construction efficiency and construction safety. At the same ...

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Problems solved by technology

[0006] In order to solve the problems of extended construction period of wet operation when the existing floor and beams are connected, unexplored anti-seismic potential of the floor system, inability to realize precise control of the plastic deformation zone, and difficulty in repairing after the earthquake, etc.

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