Controllable slippage node for fabricated prefabricated externally-hung wall body

Abstract

The invention discloses a controllable slippage node for a fabricated prefabricated externally-hung wall body. The controllable slippage node comprises a pre-buried high-strength bolt, a connecting piece, a stiffening rib and a steel beam with a hole. The prefabricated externally-hung wall body and part of the pre-buried high-strength bolt are integrated in a pouring way in a factory on site. The connecting piece is welded to a main body steel frame beam, a long slot hole is formed in the center of the connecting piece, and the prefabricated externally-hung wall body is connected with the main body steel frame beam through the pre-buried high-strength bolt and the connecting piece. A circular or an oval hole is formed in the center of a web of the main body steel frame beam so as to conveniently apply pre-tightening force to the pre-buried high-strength bolt. According to the controllable slippage node for the fabricated prefabricated externally-hung wall body, it is ensured that the wall body and a main body structure can laterally move together under the effect of small load such as wind load or a small earthquake, cracks do not occur between the wall body and the main body structure, repairing of the wall body after the effect of small load such as wind load or the small earthquake is reduced, and the effect that the wall body slips through the long slot hole during a medium earthquake and a large earthquake can be achieved; and meanwhile, by controlling the length of the long slot hole, the controllable slippage node can play a role in the later period of earthquakes while integrity of the wall body is ensured.

Description

technical field [0001] The invention belongs to the field of building construction, and relates to a prefabricated external wall node, in particular to a novel controllable sliding node. Background technique [0002] Earthquake is a sudden natural disaster, and due to the complexity of earthquakes, it is still difficult to accurately predict the occurrence of earthquakes. What can be done is to reduce the losses caused by earthquake disasters through reasonable design. Prefabricated steel structures have the characteristics of light weight, fast construction speed, and environmental protection. There is still no mature solution. The main problem is that the enclosure wall is damaged before the main structure, and the wall falls off and cracks. [0003] At present, the enclosure walls of some prefabricated steel structure buildings still adopt the method of on-site masonry, which runs counter to the "fast and efficient" concept of prefabricated buildings. There are two main...

AI Technical Summary

Problems solved by technology

[0004] The main problem to be solved by the present invention is that the prefabricated external wall of the assembled steel structure is easily cracked when the main structure is fixed, and the wall and the main structure are under the action of small loads such as wind load or small earthquake when the traditional sliding joint The problem of easy cracks between

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