Novel fabricated composite shear wall structure with self-resetting function

Abstract

The invention provides a novel fabricated composite shear wall structure with a self-resetting function. The novel fabricated composite shear wall structure comprises a first pre-embedded body, a second pre-embedded body and a wall body, wherein the first pre-embedded body and the second pre-embedded body are both of U-shaped structures, the opening end of the second pre-embedded is inversely buckled in an opening slot of the first pre-embedded body, and the top plate of the second pre-embedded body is connected with the foundation end of the wall body; one ends of the joint of the first pre-embedded body and the second pre-embedded body are connected in a hinged mode, and the other ends of the joint of the first pre-embedded body and the second pre-embedded body are slidably connected; piezoelectric stacks are correspondingly arranged at the hinged joint and the sliding joint, and the piezoelectric stacks are connected with a controller; and the first pre-embedded body, the second pre-embedded body and the wall body are connected through a SMA-shaped memory alloy bundle. According to the novel fabricated composite shear wall structure, the voltage of the piezoelectric stacks are adjusted through the controller under different seismic load effects, thus the rotating friction force and the sliding friction force of the core region are adjusted, the purpose of self-adapting of the overall structure to seismic response is achieved, and real-time variable friction shear under the action of small and medium earthquakes is achieved; and under the action of rare earthquakes, a large amount of seismic energy is consumed.

Description

technical field [0001] The invention relates to the technical field of energy dissipation and shock absorption of a shear wall structure, in particular to a novel assembled composite shear wall structure with a self-resetting function. Background technique [0002] In order to meet the increasingly diverse needs of architectural forms in modern society, the height and span of buildings continue to increase, so the coordinated development of new structures and related design theories is required. The prefabricated structure has the advantages of fast construction speed, guaranteed component quality, and labor saving. At present, it has been widely used in shopping malls, parking lots, middle and low-rise residences, hotels, etc. The specific structural types used include prefabricated frames, shear wall structures, and prefabricated prestressed structures. In order to adapt to the new situation of my country's economic development, prefabricated structures have developed rap...

AI Technical Summary

Problems solved by technology

At present, for the research on the horizontal connection method of the prefabricated shear wall, the typical methods adopted are "sleeve grouting, anchor grout lap, extrusion sleeve", etc., but these connection methods are still difficult to make the prefabricated shear wall structure The internal force transmission path and constraints at the horizontal joints are exactly the same as those of the cast-in-place shear wall structure

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