Structure for reserved notch in high-rise building and construction method of reserved notch

Abstract

The invention relates to a structure for a reserved notch in a high-rise building and a construction method of the reserved notch, the structure comprises a floor slab bottom die and a positioning frame, an opening is formed in the surface of the floor slab bottom die, a positioning rod is arranged at the center of the positioning frame, a telescopic mechanism is arranged at the bottom end of the positioning rod, and the telescopic mechanism is connected with the floor slab bottom die. Two steel wire pulling ropes are arranged between the telescopic mechanism and the top of the positioning rod, and the bottom end of the positioning rod and the telescopic mechanism penetrate through the open hole and extend to the position below the floor slab bottom die. Through the arrangement of the telescopic mechanism, the steel wire pulling rope, the positioning cover, the first locking nut, the second locking nut and other structures, when the positioning frame is mounted and dismounted, the telescopic mechanism can stretch out and draw back only by pulling the steel wire pulling rope, and then the positioning plate can be conveniently inserted into the open hole to be fixed; an operator does not need to move to the position below the floor bottom die to conduct installation and positioning operation on the positioning rod, installation of the positioning frame can be completed by a single person, installation and disassembly are more convenient, and cyclic utilization is facilitated.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a structure for reserving slots in high-rise buildings and a construction method for reserving slots. Background technique [0002] At present, there are two main methods for the construction of the reserved holes in the bottom formwork of the floor slabs of construction projects: 1. The formwork is made by splicing the wooden formwork and fixed on the board; 2. The finished plastic sleeve is pre-buried, and the above two methods have their own defects. , in method 1, the wooden formwork has a large loss during the disassembly and assembly process, the number of turnovers is small, and the splicing and fixing are cumbersome; in method 2, the formwork usually fixed on the board with steel nails cannot be removed in advance during removal, and must be removed together with the bottom formwork, resulting in Inconvenient turnaround. [0003] The publication number is C...

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Problems solved by technology

[0004] Aiming at the above-mentioned problems existing in the prior art, the technical problem to be solved by the present invention is: in the prior art, it is not convenient to operate when installing the positioning formwork with reserved slots, it is not convenient to operate alone, and it is not possible to position the mold after the subsequent pouring is completed. The demolition plays an auxiliary role in the problem

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