CN111255237A

CN111255237A - Construction method for controlling overall position of column reinforcement

Info

Publication number: CN111255237A
Application number: CN202010169283.8A
Authority: CN
Inventors: 牛俊平
Original assignee: Ruizhou Construction Group Co ltd
Current assignee: Ruizhou Construction Group Co ltd
Priority date: 2020-03-12
Filing date: 2020-03-12
Publication date: 2020-06-09

Abstract

A construction method for controlling the whole position of a column reinforcement in the construction of constructional engineering. It is at four bights of post suitable for reading, and four butterfly locator cards are established to the nail, come the position of fixed bight post owner muscle, and post bight owner muscle has been fixed a position, and because of the existence of stirrup, whole post muscle position has just also been confirmed.

Description

Construction method for controlling overall position of column reinforcement

Technical Field

The invention relates to an innovative method for controlling the integral deviation of a column bar in the construction of constructional engineering, which is particularly suitable for controlling the integral position of the column bar in a frame structure adopting a wood template.

Background

In the construction of a frame or a frame shear wall structure, a column rib is taken as a vertical continuous transitive connection component, and the integral deviation line outlet of the column rib is a problem which often occurs in the construction. When the edges of the beam and the column are flush, the column rib is integrally displaced due to the collision of the beam and the column rib; deviation caused by cushion block deletion of a protective layer in a column core region due to post-positioning of a beam rib in a construction process; and deviation caused by concrete vibration interference due to dense reinforcing steel bars in the core area, and the like.

Disclosure of Invention

In order to solve the problem that the existing construction process is easy to cause deviation of the column reinforcement, the invention provides a positioning clamp which can position the whole position of the column reinforcement and also plays a role of a cushion block of a column reinforcement protective layer.

The process principle is as follows: the position of the column rib is restricted by the column die, and as long as the position of the column die is correct, the position of the column rib is correct under the condition that the relative position of the column rib and the column die is well controlled.

The technical scheme adopted for solving the technical problem is that a template is used as a fixing base surface, four butterfly-shaped positioning clamps are nailed at four corners of an upper opening of a column to fix the positions of main ribs of the corner column, the main ribs of the corner column are positioned, and the positions of the whole column ribs are determined due to the presence of stirrups.

The invention has the advantages of simple and direct control method, easy operation and effective control of the relative position of the frame column reinforcing steel bar and the column mould, thereby effectively controlling the position of the column reinforcing steel bar.

Drawings

The invention is further illustrated by the following figures and examples.

FIG. 1 is a plan view of the butterfly locator card, the principal component of the present invention.

Fig. 2 is a schematic diagram of a butterfly locator card applied to post position control.

In the figure, 1, a butterfly positioning clamp, 2, a column opening mark, 3, a nail, 4, a column main rib, 5, a column stirrup, 6, a beam main rib, 7, a beam stirrup and 8, a column opening line.

The specific implementation mode is as follows:

process flow

Preparing a butterfly-shaped positioning clamp → installing a floor template → binding beam steel bars in place → nailing butterfly-shaped cushion blocks → binding floor steel bars → pouring concrete → paying off and checking the position of column steel bars.

Preparation of butterfly-shaped positioning card

Selecting a galvanized steel plate or a stainless steel plate with the thickness of 0.5mm, and cutting the galvanized steel plate or the stainless steel plate into the shape shown in the figure 1 by adopting a laser cutting method.

Floor formwork installation

Building a floor formwork support frame, placing a beam bottom formwork, correcting the position of the beam bottom formwork by a suspension wire, installing a beam side formwork after fixing, and then installing a flat plate formwork. The key point of the process is to ensure the correct and square position of the column mouth (8).

Beam reinforcement binding in place

And erecting the beam ribs (6) on the template surface of the floor slab for binding and molding, then lifting the beam ribs, removing the supporting pieces, and placing the beam ribs (6) in the beam mold. In this process, it is necessary to ensure that the column reinforcements are symmetrically distributed with respect to the beam reinforcements when the beam reinforcements pass through the column reinforcements. When the beam edge is parallel and level with the column edge, the beam rib is in the house, the column rib is out of the house, and the beam rib avoids the column rib, so that the thickness of the column rib protective layer is ensured to meet the design requirement.

Butterfly-shaped positioning clip for nail

And correcting the position of the column rib, and nailing the butterfly-shaped positioning cards (1) on four corners of the column opening to enable the clamping openings of the positioning cards to clamp the main ribs (4) at the column corner parts. When the nail is arranged, the notch of the positioning mark (2) on the positioning card is aligned with the column port line (8), and the nail (3) is not less than one on each side. For the condition that the beam edge is flush with the column edge, marking a column opening line on one side without a column opening angle by paying off so as to facilitate nailing; in this case, the positioning clamp can be nailed only on one side, and the number of nails is not less than two.

In order to facilitate the pulling out of the nail after the floor bottom die is dismantled, the nail needs to be driven in a straight line and cannot be anchored in a bent mode.

Binding floor slab reinforcing steel bar

Binding the reinforcing steel bars at the bottom layer of the floor slab, laying water and electric pre-buried pipes, sleeving two layers of stirrups on the column reinforcing steel bars after the binding of the reinforcing steel bars at the surface is finished, and binding the two layers of stirrups at the floor position and the 50cm position on the floor respectively to form a whole.

Pouring concrete

And pouring the floor concrete according to the scheme determined by the construction scheme.

Paying-off inspection column rib position

And (4) copying and placing the floor control lines, releasing each axis according to the control lines, then releasing the column contour lines, and checking the deviation control effect of the column ribs.

Claims

1. A construction method for controlling the whole position of a column reinforcement in constructional engineering construction is characterized in that a butterfly-shaped positioning clamp is arranged at a four-corner nail at a column opening to control the corner reinforcement of a column, and further the position of the whole column reinforcement is controlled.

2. The method is characterized in that: the butterfly-shaped positioning clamp is in a butterfly-shaped plane shape, one end of the butterfly-shaped positioning clamp is nailed on the column port template, and the other end of the butterfly-shaped positioning clamp is clamped on the column rib.