Formwork fixing structure for shear wall at narrow expansion joint

Abstract

The invention discloses a formwork fixing structure for a shear wall at a narrow expansion joint, relates to a building auxiliary device for the shear wall, and aims to solve the problem that a shearwall inner formwork and a shear wall outer formwork are prone to toppling in the prior art. According to the technical scheme, the formwork fixing structure is characterized by comprising a fixing assembly and a connecting assembly which are arranged in the expansion joint; a supporting frame is arranged on the top wall of a lower concrete layer and located on the side, away from the shear wall outer formwork, of the shear wall inner formwork, and the connecting assembly is connected with the supporting frame. In the mode, the shear wall inner formwork and the shear wall outer formwork can besupported at the same time, the possibility that the shear wall outer formwork and the shear wall inner formwork are prone to toppling is reduced, and reduction of construction convenience is facilitated.

Description

technical field [0001] The invention relates to a construction auxiliary device for a shear wall, and more particularly, to a formwork fixing structure for a shear wall at a narrow expansion joint. Background technique [0002] Shear walls are also known as wind-resistant walls, earthquake-resistant walls or structural walls; walls in houses or structures that mainly bear horizontal loads and vertical loads (gravity) caused by wind loads or earthquakes to prevent structural shear (shear) damage . Nowadays, high-rise shear wall structures have been used more and more. Under the influence of site and building layout, high-rise shear wall structures need to leave expansion joints during construction due to the design of excess length or different structural foundations. [0003] The Chinese patent whose authorized notification number is CN205276867U discloses an assembled formwork for expansion joints, the assembled formwork includes a shear wall inner formwork and a shear wal...

AI Technical Summary

Problems solved by technology

[0004] When using the assembled formwork in the prior art, the inner formwork of the shear wall is installed in the expansion joint, the outer formwork of the shear wall is installed on the lower concrete side wall, and the prefabricated wall-through bolts are used to pass through the outer formwork of the shear wall and the shear wall. The inner formwork of the force wall is connected with the outer nut and the inner nut screw, and then the concrete is poured between the inner formwork of the shear wall and the outer formwork of the shear wall, but in actual construction, due to the inner formwork of the shear wall and the shear wall The outer formwork is in contact with the lower concrete side wall and top wall respectively. When the height and mass of the shear wall outer formwork and the shear wall inner formwork are relatively high, the area where the shear wall outer formwork and the lower concrete side wall conflict When it is small, the center of gravity of the inner formwork of the shear wall is easy to be unstable, and the outer formwork of the shear wall and the inner formwork of the shear wall are easy to fall to the side of the shear wall, which affects the construction and needs to be improved

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