Self-resetting swing steel frame structure and construction method thereof

Abstract

The invention discloses a self-resetting swing steel frame structure. The self-resetting swing steel frame structure comprises basic parts, steel columns, a column foot joint structure, a beam end joint structure and a middle beam, wherein the number of the basic parts and the number of the steel columns are respectively two; the steel columns are vertically arranged at the tops of the basic parts; the column foot joint structure comprises column foot high-strength anchor rods, a column foot disc-shaped spring and cantilever plates; the cantilever plates are fixed to the two sides, close to the bottoms, of the steel columns; the column foot high-strength anchor rods penetrate through the cantilever plates and are fixedly connected with the tops of the basic parts; the column foot disc-shaped spring is sleeved on the column foot high-strength anchor rod on one side, far away from the basic parts, of the cantilever plates; and the middle beams is transversely arranged and is fixed between the two steel columns. The steel frame has extremely high self-resetting performance and energy consumption capacity, and also has excellent ductility and fatigue resistance.

Description

technical field [0001] The invention relates to the technical field of energy dissipation and shock absorption of building structures, and more specifically relates to a self-resetting swing steel frame structure and a construction method thereof. Background technique [0002] At present, the traditional anti-seismic thinking takes protecting life as the primary goal, and prevents structures from collapsing under strong earthquakes through ductile design. However, this ductile design comes at the expense of allowing plastic deformation of the main stressed members of the structure. On the other hand, the structure may be subjected to earthquakes stronger than the fortification intensity during use, which will also cause damage and residual deformation of the structure. In fact, earthquake disasters in recent years have shown that the number of building collapses and casualties in earthquakes has been effectively controlled, but the economic losses and social impacts caused ...

AI Technical Summary

Problems solved by technology

[0004] It is difficult to control the damage mode and energy-dissipating parts of the existing steel frame under the action of the earthquake. Plastic hinges appear at the foot of the column and the end of the beam.

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