Self-resetting swing reinforced concrete column based on shape memory alloy

Abstract

The invention relates to a self-resetting swing reinforced concrete column based on a shape memory alloy. The self-resetting swing reinforced concrete column comprises a concrete foundation (2), a prefabricated reinforced concrete column body (1) arranged on the concrete foundation (2), and super-elastic shape memory alloy screw rods (3) distributed around the concrete foundation (2) and the prefabricated reinforced concrete column body (1) and connecting the concrete foundation (2) with the prefabricated reinforced concrete column body (1), wherein a foundation top face steel plate (5) and a column bottom steel plate (4) are pre-embedded in the contact faces of the concrete foundation (2) and the prefabricated reinforced concrete column body (1) correspondingly, and a shear resistant element (7) is further arranged between the foundation top face steel plate (5) and the column bottom steel plate (4). Compared with the prior art, the self-resetting swing reinforced concrete column is simple in structure and flexible in design; the reinforced concrete column adopts prefabricating and assembling modes, so that construction is convenient; and it can be guaranteed that the using function of the reinforced concrete column is not interrupted after an earthquake through structural self-resetting capacity, so that significant repairing and reinforcing costs after the earthquake in a traditional reinforced concrete structure are effectively avoided.

Description

technical field [0001] The invention relates to the technical field of recoverable functional structures, in particular to a self-resetting swinging reinforced concrete column based on a shape memory alloy. Background technique [0002] The current anti-seismic design idea generally adopted in the world is to allow the structure to undergo plastic deformation at the predetermined design position (plastic hinge area) to consume energy when the structure is subjected to a strong earthquake, so as to achieve the fortification goal of the anti-seismic design (such as no collapse in a large earthquake) ) to ensure the safety of life and property. Although this ductile design method using the energy dissipation of its own components achieves the expected anti-seismic goal of the structure, the plastic hinge area of ​​the structure is seriously damaged in the earthquake. Obvious residual deformation will not only make it difficult to repair the structure, but also cause high econo...

AI Technical Summary

Problems solved by technology

Although this traditional self-resetting structural system also has self-resetting ability, the structure is relatively complicated and the assembly is more troublesome.

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