Building column cutting steel corbel connecting structure and construction method

Abstract

The building column cutting steel corbel connecting structure comprises a concrete column, a left steel corbel and a right steel corbel and further comprises a connecting device, the connecting device comprises a left screw rod, a right screw rod and a connecting piece, and a left inserting hole and a right inserting hole are obliquely formed in the left side wall and the right side wall of the concrete column correspondingly; a through hole is formed in the side wall of the concrete column in the radial direction, the connecting piece is inserted into the through hole, one end of the left screw is connected with the connecting piece, the other end of the left screw is fixedly connected with the left steel corbel, one end of the right screw is connected with the connecting piece, and the other end of the right screw is fixedly connected with the right steel corbel. In the jacking or deviation rectifying project, the lifting force applied to the steel corbel by the jacking mechanism is balanced by the tensile force provided for the left screw and the right screw, the left screw and the right screw which are arranged in a V-shaped structure are mainly subjected to the tensile force effect, and the stress distribution is more uniform relative to concrete in contact with penetrating straight screws (embedded steel bars); and the situation that concrete at the ends of the left screw and the right screw is crushed in actual engineering is reduced.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a steel corbel connection structure and a construction method for building truncated columns. Background technique [0002] The steel corbel truncated column technology is one of the main technologies for building jacking, storey addition and deviation correction construction. The steel corbel is traditionally fixed on the concrete column by straight screws or planting bars. After the jack starts to load in the jacking or rectification project, the lift force applied by the jack on the steel corbel is balanced by the shear force provided by the straight screw (planted bar), which is mainly affected by the shear force. As a result, the stress distribution of the concrete in contact with the straight screw (planting bar) is uneven, and the compressive stress on the concrete at the end of the straight screw (planting bar) is extremely large. In actual engineering, the ...

AI Technical Summary

Problems solved by technology

[0003] In view of this, the present invention proposes a connection structure and a construction method of a steel corbel truncated column to solve the problem of straight-through The stress distribution of the concrete in contact with the screw (planting bar) is uneven, and the concrete is prone to being crushed

Images