Prefabricated shear wall connecting device and construction method thereof

Abstract

The assembled shear wall connection device and its construction method include two rectangular sleeve sets, two grouting pipes, a plurality of steel insert plates, and a prefabricated composite beam; On the upper and lower sides, each rectangular sleeve group includes a plurality of rectangular sleeves arranged side by side and at intervals, and the upper and lower ends of each rectangular sleeve are open ends; each of the grouting pipes passes through a A plurality of rectangular sleeves of the rectangular sleeve group, the first and last ends of the grouting pipe are closed ends, one end of the grouting pipe is provided with a grouting port, and the bottom of the side wall of the grouting pipe is provided with A plurality of slurry outlets; each of the steel inserts passes through the prefabricated composite beam, and the first and last ends of the steel inserts are respectively inserted into a rectangular sleeve of two rectangular sleeve sets. The invention improves the construction efficiency of grouting, improves the bonding and anchoring strength of the upper prefabricated lower shear wall, ensures firm connection between the grouting pipe and the buckle, and can effectively prevent grout leakage.

Description

technical field [0001] The invention relates to an assembled shear wall connection device and a construction method thereof. Background technique [0002] Structural connection and seismic capacity are the key technologies in the promotion of prefabricated reinforced concrete structures. At present, prefabricated reinforced concrete shear wall structures in my country mostly use sleeve connections and cast-in-place connections at node areas to achieve the same purpose as cast-in-place. However, in order to further improve the scope of application of prefabricated concrete frame structures in earthquake areas and reduce structural deformation and damage, a connection method with better mechanical performance and convenient construction is an urgent problem that needs to be solved, and it is also a current research hotspot. [0003] At present, the connection methods of upper and lower prefabricated shear wall components mainly include: steel sleeve connection, cast-in-place c...

AI Technical Summary

Problems solved by technology

In the steel sleeve connection, each sleeve connection needs to be grouted one by one, and the workload is large, and the diameter of the sleeve is larger than the diameter of the steel bar, which leads to the thinning of the protective layer of the precast concrete component, which becomes the weak point of the precast component during transportation and hoisting. parts

The cast-in-place connection method has many concrete wet operations on site, low assembly rate and low work efficiency, while the connection through pre-embedded steel parts requires high manufacturing precision and poor waterproof effect at the joints

Images