Positioning device and method for pre-embedded bolts at PC stair cast-in-situ joint

Abstract

The invention discloses a positioning device for pre-embedded bolts at a PC stair cast-in-situ joint. The positioning device comprises the cast-in-situ joint and the pre-embedded bolts and further comprises square steel plate pieces. Open holes are formed in the middles of the square steel plate pieces, connecting steel plates are arranged between the square steel plate pieces, and the open holesare matched with the pre-embedded bolts. By adopting the positioning device for the pre-embedded bolts at the PC step cast-in-situ joint, the verticality and relative positions of the pre-embedded bolts are ensured. In the concrete pouring process, disturbance to the pre-embedded bolts is avoided, the construction quality is ensured, it is ensured that PC stair holes can be connected with the pre-embedded bolts in a butting mode, the hoisting difficulty is reduced, and the hoisting quality is ensured.

Description

technical field [0001] The invention belongs to a positioning device and a method, in particular to a positioning device and a method for pre-embedded bolts of PC stair cast-in-place nodes. Background technique [0002] At present, the bolts of concrete cast-in-place joints of PC stairs are fixed directly to the foundation steel bars by conventional methods. During the concrete pouring process, the bolts are easily disturbed, and problems such as bolt inclination and displacement often occur. Buried bolts do not match, [0003] In addition, PC components in the field of construction engineering are in the stage of vigorous promotion. The pre-embedded positioning of PC stair cast-in-place node bolts has always been a technical problem. Bolts often tilt and shift, resulting in the misalignment of PC stair holes and pre-embedded bolts. . Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a PC stair cast-in-place node...

AI Technical Summary

Problems solved by technology

[0002] At present, the bolts of concrete cast-in-place joints of PC stairs are fixed directly to the foundation steel bars by conventional methods. During the concrete pouring process, the bolts are easily disturbed, and problems such as bolt inclination and displacement often occur. Buried bolts do not match,

[0003] In addition, PC components in the field of construction engineering are in the stage of vigorous promotion. The pre-embedded positioning of PC stair cast-in-place node bolts has always been a technical problem. Bolts often tilt and shift, resulting in the misalignment of PC stair holes and pre-embedded bolts.

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