CN107542270B - Construction method of anti-loosening and anti-displacement pre-buried tie bar - Google Patents

Abstract

The invention relates to the field of building structure construction, in particular to a construction method of an anti-loosening and anti-displacement embedded tie bar; the method is characterized in that: drilling a preformed hole in a position, corresponding to a preformed steel bar, on a template by using a drilling machine, and nailing an iron nail at a position 30-80 mm above the preformed hole; inserting the reserved steel bar into the reserved hole, sleeving the coil spring into the steel bar, and tensioning the free end of the outer side of the coil spring to tightly wrap the reserved steel bar and fix the reserved steel bar; and fixing the free end of the coil spring on an iron nail above the reserved steel bar. The construction method is additionally provided with the coil spring for fixation on the basis of the original embedded part, so that the phenomena of drop, displacement and the like of the tie bar caused by vibration are solved, and the phenomenon of slurry leakage caused by the gap of the template hole is avoided.

Description

Construction method of anti-loosening and anti-displacement pre-buried tie bar

Technical Field

The invention relates to the field of building structure construction, in particular to a construction method of anti-loosening and anti-displacement embedded tie bars.

Background

At present, the construction of the tie bars of structures such as civil high-rise and multi-story houses, commercial office buildings, hotels and the like mainly adopts a pre-buried process and a bar planting process. The traditional tie bar pre-embedding process has the common quality problems of pre-embedding falling, tie bar displacement, slurry leakage and the like, and the appearance and the secondary structure quality of a building structure are seriously influenced; the traditional bar planting process is complex in procedure and difficult in control of drawing force, bar planting construction needs to be carried out again if a drawing test does not pass, the effect of one-step forming cannot be achieved, and meanwhile, quality defects are prone to remaining.

Disclosure of Invention

The invention aims to provide a construction method capable of preventing quality problems such as displacement, falling off, slurry leakage and the like of tie bars.

In order to achieve the above object, the present invention is realized by:

a construction method of an anti-loose and anti-displacement pre-buried tie bar comprises

Step 1, after the reinforcing steel bar formwork is installed, drilling a reserved hole in a position, corresponding to a reserved reinforcing steel bar, on the reinforcing steel bar formwork by using a drilling machine, and nailing an iron nail at a position 30-80 mm above the reserved hole;

step 2, inserting the reserved steel bar into the reserved hole, sleeving the coil spring into the steel bar after the reserved steel bar reaches the required length, and ensuring that the coil spring is tightly attached to the steel bar template;

step 3, tensioning the free end of the outer side of the coil spring to enable the coil spring to tightly wrap the reserved steel bars, and fixing the reserved steel bars through the tensioning force of the coil spring;

and 4, fixing the free end of the coil spring on an iron nail above the reserved steel bar.

The construction method is characterized in that a coil spring is additionally arranged on the basis of the original embedded part for fixing, so that the phenomena of drop, displacement and the like of tie bars caused by vibration are avoided, and the phenomenon of slurry leakage caused by the gaps of the template holes is also avoided; compared with the existing bar planting process, the construction method can fix the reserved inserted bars on the template only by spending a little time in the template installation process, thereby ensuring the pre-buried length of the steel bars, achieving the pre-buried effect and avoiding the drawing experiment. By adopting the method, the construction quality of the reserved joint bar can be effectively controlled, meanwhile, the compensation measures such as repair, rework, verification and the like caused by slurry leakage and insufficient drawing force can be saved, meanwhile, the required material coil spring can be repeatedly utilized, the standard layer template can be continuously used, the construction period is shortened, the cost is saved, and cost reduction and efficiency improvement are facilitated.

Drawings

FIG. 1 is a first schematic view of the construction method.

FIG. 2 is a second schematic view of the construction method.

Detailed Description

The invention is further illustrated by the following specific examples.

As shown in figures 1 and 2, the construction method of the pre-buried tie bar for preventing loosening and displacement comprises

Step 1, after the reinforcing steel bar formwork 1 is installed, drilling a reserved hole 3 in a position, corresponding to a reserved reinforcing steel bar 2, on the reinforcing steel bar formwork 1 by using a drilling machine, and nailing an iron nail 4 at a position 30 mm-80 mm above the reserved hole 3;

step 2, inserting the reserved steel bar 2 into the reserved hole 3, sleeving the coil spring 5 into the steel bar 2 after the reserved steel bar reaches the required length, and ensuring that the coil spring is tightly attached to the steel bar template 1;

step 3, tensioning the free end of the outer side of the coil spring 5 to enable the coil spring 5 to tightly wrap the reserved steel bar 2, and fixing the reserved steel bar 2 through the tensioning force of the coil spring 5;

and 4, fixing the free end of the coil spring 5 on the iron nail 4 above the reserved steel bar.

The construction method is characterized in that a coil spring is additionally arranged on the basis of the original embedded part for fixing, so that the phenomena of drop, displacement and the like of tie bars caused by vibration are avoided, and the phenomenon of slurry leakage caused by the gaps of the template holes is also avoided; compared with the existing bar planting process, the construction method can fix the reserved inserted bars on the template only by spending a little time in the template installation process, thereby ensuring the pre-buried length of the steel bars, achieving the pre-buried effect and avoiding the drawing experiment. By adopting the method, the construction quality of the reserved joint bar can be effectively controlled, meanwhile, the compensation measures such as repair, rework, verification and the like caused by slurry leakage and insufficient drawing force can be saved, meanwhile, the required material coil spring can be repeatedly utilized, the standard layer template can be continuously used, the construction period is shortened, the cost is saved, and cost reduction and efficiency improvement are facilitated.

Claims (1)

1. A construction method of an anti-loosening and anti-displacement pre-buried tie bar is characterized by comprising the following steps: comprises that

Step 1, after the reinforcing steel bar formwork is installed, drilling a reserved hole in a position, corresponding to a reserved reinforcing steel bar, on the reinforcing steel bar formwork by using a drilling machine, and nailing an iron nail at a position 30-80 mm above the reserved hole;

step 2, inserting the reserved steel bar into the reserved hole, sleeving the coil spring into the steel bar after the reserved steel bar reaches the required length, and ensuring that the coil spring is tightly attached to the steel bar template;

step 3, tensioning the free end of the outer side of the coil spring to enable the coil spring to tightly wrap the reserved steel bars, and fixing the reserved steel bars through the tensioning force of the coil spring;

and 4, fixing the free end of the coil spring on an iron nail above the reserved steel bar.

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