CN205502576U - A sealed reinforcing apparatus that is used for concrete side column seam position template - Google Patents

Abstract

The utility model discloses a sealing and reinforcing device for a formwork at the joint part of a concrete side column, which comprises a formwork at the joint part, and the formwork at the joint part includes a formwork panel and a formwork back; The hook bolts on both sides of the bottom of the column formwork, the front end of each hook bolt is fixedly connected to the lower roof through anchoring steel bars; side, the support tube located outside the back of the template; the end of each hook bolt is respectively provided with a nut for locking. The utility model effectively overcomes the deformation of the formwork, leakage of slurry and the resulting concrete misalignment, "rotten roots", honeycomb, Common quality defects such as exposed ribs ensure that the concrete at the joints is dense and the surface is smooth, and can prevent the overall displacement of the column formwork.

Description

A sealing and reinforcing device for the formwork at the joint of concrete side columns

technical field

The utility model relates to building engineering construction, in particular to a sealing and reinforcing device for a formwork at the joint part of a concrete side column in the construction of a concrete cast-in-place structure.

Background technique

In the construction of cast-in-place frame structures, appearance quality defects such as misplaced concrete side columns and hanging grout, "rotten roots" and other appearance quality defects are common in the horizontal stubble range at the floor level, which is a common problem of structural quality and has not been properly solved. Plagued by construction companies.

The common way to configure formwork at the horizontal joints of concrete side columns is to lengthen the outer formwork downwards below the horizontal joints of the columns when supporting the upper side column formwork, so that it covers the joints and attaches to the constructed side of the lower layer. The concrete surface outside the column is expected to prevent the formwork leakage at the joints and control the leveling of the stubbled concrete. However, because the support rigidity of the extended part of the formwork is not enough, it is impossible to achieve a firm and tight joint with the surface of the lower column. When pouring concrete, the cement slurry will flow out from the lower opening of the formwork, and part of it will stay between the formwork near the joint and the surface of the lower column. During this period, the formwork is squeezed, and under the joint action of the lateral pressure generated by pouring and ramming concrete, the formwork at the joint is stretched and deformed, which in turn intensifies the overflow and accumulation of cement slurry, and obvious dripping and overlapping slurry layers appear below the joint , forming a "wrong platform". When the grout leakage is serious, due to the loss of a large amount of cement mortar, stones and steel bars will be exposed in the area where the concrete is stubbled, resulting in quality defects such as "rotten roots", honeycombs, and exposed bars. The above-mentioned lateral pressure may also cause the overall displacement of the column formwork, thus resulting in the deviation of the axial position and size of the formed concrete side column. The quality defects of stubble stubble of concrete columns in frame structure seriously affect the overall appearance quality of the structure, which will not only affect the stress of the structure, but also damage the reputation of the construction company. It may be difficult to check and accept the structure due to the inability to judge the quality defects of the concrete covered by the repair, which will further delay the construction period of the project.

With the development of my country's construction industry, the quality standards of construction projects are getting higher and higher, and the quality requirements for structural engineering are becoming more and more stringent. be given serious attention. In view of the fact that the appearance quality defect of the concrete at the stubble part of the side column is mainly caused by the leakage of grout due to the insufficient sealing and reinforcement of the formwork support in this part, the key to eliminating the crux of the problem is to solve the support reinforcement and sealing of the formwork at the joint part.

Utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, to provide a formwork by connecting and fixing the formwork at the seam with the constructed structure and adding a sealing strip, which effectively overcomes formwork deformation, slurry leakage and the resulting edges. Concrete staggering, "rotten roots", honeycomb, exposed reinforcement and other common quality problems in the column joint area, to ensure the compactness of the joints and the smooth surface of the joints, and to prevent the overall displacement of the column formwork sealing reinforcement device.

In order to solve the above-mentioned technical problems, the utility model provides a sealing and reinforcing device for the formwork of the joint part of the concrete side column, which includes a formwork for the joint part extending along the outer formwork of the upper side column to below the horizontal joint of the column, and the joint part The site formwork includes a formwork panel and a formwork back; the sealing reinforcement device also includes hook bolts arranged on both sides of the bottom of the column formwork and parallel to the lower roof. The top plate is fixedly connected; two hook bolts are arranged between the two hook bolts, which are respectively located on the upper and lower sides of the hook bolts, and are fixedly connected to the hook bolts through mountain-shaped clips, and are located outside the back of the formwork. The support tube; the end of each hook bolt is respectively provided with a nut for locking.

The template panel is located in the inner layer close to the outer side of the lower column, and is provided with a sealing strip near the horizontal joint of the column.

The front end of the hook bolt is provided with a 180° hook whose bending diameter matches the diameter of the anchoring steel bar.

The hook bolts are made of round steel with a diameter not less than 16mm and a length of 410-450mm.

The top of the anchoring steel bar is provided with a 90° hook, which is made of a steel bar with a diameter of not less than 20mm and a length of not less than 250mm.

The support pipe is made of a steel pipe with a diameter of 48 mm and a length greater than the width of the side column.

The length of the template at the seam is not less than 100mm.

The sealing strip is composed of a self-adhesive foam plastic sealing strip with a specification of 15-20mm.

The beneficial effects of the utility model are:

1. The utility model uses hook bolts, anchoring steel bars, support pipes, etc. to connect and fix the formwork at the joint of the side column with the structure, thereby effectively preventing the formwork from being deformed and displaced;

2. The utility model pastes the sealing strip on the top of the side column of the lower layer, clamps and squeezes it through the tightened formwork to achieve a tight seam, which can effectively prevent slurry leakage;

3. The device of this utility model solves the problem of formwork support reinforcement and sealing at the joints of the concrete side columns of the cast-in-place frame structure, and effectively overcomes the traditional formwork deformation, grout leakage and the resulting concrete staggering in the side column stubble area, " Common quality problems such as rotten roots, honeycomb, and exposed ribs have greatly improved the appearance quality of the frame structure and the overall quality of the structural engineering;

4. The utility model can avoid late repairs, save repair labor and materials, ensure the construction period, and increase the credibility of the construction enterprise;

5. The structure of the utility model device is simple, and materials are conveniently obtained. The anchoring steel bars and hook bolts can be processed with construction waste materials; benefits and social benefits.

Description of drawings

Figure 1: a schematic view of the structure of the utility model;

Figure 2: Schematic diagram of the front view structure of the utility model;

Figure 3: Schematic diagram of the side view structure of the utility model.

Drawings: 1. Formwork panel; 2. Formwork back corrugation; 3. Anchor steel bar; 4. Hook bolt; 5. Support pipe; 6. Mountain clip; 7. Nut; 8. Sealing strip; 9. Upper edge Column outer formwork; 10, lower column; 11, lower roof.

detailed description

Below in conjunction with accompanying drawing, the utility model is further described.

As shown in Figures 1-3, a sealing and reinforcing device for the formwork at the joint of the concrete side column, including a joint that extends along the outer formwork 9 of the upper side column to below the horizontal joint of the column and whose length is not less than 100mm The template, the template at the joint part includes a template panel 1 and a template back corrugated 2, the template panel 1 is located in the inner layer close to the outer side of the lower column 10, and is provided with a sealing strip 8 near the horizontal joint of the column, and the sealing strip 8 is constituted by the self-adhesive foam plastics sealing strip of specification 15-20mm.

The sealing reinforcement device also includes hook bolts 4 respectively arranged on both sides of the bottom of the outer formwork 9 of the upper side column and parallel to the lower roof 11. Fixed connection, wherein the hook bolt 4 is made of round steel with a diameter of not less than 16mm and a length of 410-450mm, the end of which is provided with a thread with a specification of M16×70mm, and the front end is provided with a 180° hook, which bends The diameter matches the diameter of the anchoring steel bar 3; the top of the anchoring steel bar 3 is provided with a 90° hook, which is made of a steel bar with a diameter not less than 20mm and a length not less than 250mm. Each set of reinforcing device is equipped with two hook bolts 4, which are arranged on both sides of the bottom of the column formwork, and the front hook hooks the anchoring steel bars 3 embedded in the concrete of the structural beam and slab of the lower column 10, and is used for the joints of the opposite side columns The formwork is tied and fixed; the parallel structural sidelines of the anchor bars 3 are arranged on both sides of the outer formwork 9 of the upper side column, about 150 mm away from the side of the column, and not less than 100 mm away from the edge of the structure. The length of the anchor bar 3 embedded in the concrete is not Less than 100mm, the exposed length is not less than 100mm.

Two hook bolts 4 are arranged between the upper and lower sides of the hook bolt 4, and are fixedly connected to the hook bolt 4 through the mountain-shaped clip 6, and are located on the back of the formwork 2. The outer support pipe 5, the support pipe 5 is made of a steel pipe with a diameter of 48mm and a length greater than the width of the side column. In this embodiment, its length is the width of the side column+450mm×2; Standard formwork mountain card 6 matching with Ф48 steel pipe, one for each bolt, installed at the end of the bolt.

The ends of the hook bolts 4 are respectively provided with nuts 7 for locking, the mountain-shaped nuts 7 matching the hook bolts 4 are selected, and each hook bolt 4 is equipped with a nut 7 .

The sealing reinforcement principle of the utility model device is as follows: the anchoring steel bar 3 pre-buried in the concrete of the structural beam slab is used as the support point, and the hook bolt 4 hooked on it and the matching mountain-shaped clip 6 and nut 7 are used to pull the knot Lock the support pipe 5 on the outside of the formwork at the joint of the side column, fix the formwork at the joint on the structure and cling to the surface of the constructed lower column 10, and clamp the sealing strip 8 at the top of the lower column 10 at the same time, so as to achieve firmness Supportive and completely sealed effect.

The preparation and installation of the utility model sealing reinforcement device includes the following steps:

1. Device preparation

(1) Hook bolt 4 processing: The screw steel bar is cut and blanked with a toothless saw, and the thread is processed with a threading machine or a thread die. The processing size and the bending diameter of the hook should meet the requirements, and the hook should be flat and free of warping;

(2) Support pipe 5: steel pipe purchased or leased; the steel pipe used shall be inspected, and its specification and size shall meet the requirements of use, the quality shall meet the standard, and the quantity shall meet the requirements;

(3) Anchor steel bar 3: the specification is not less than Ф20, the cutting length is not less than 250mm, and the top is made with a 90° hook;

(4) Sealing strip 8: for outsourcing, the specifications and quality should meet the standards, and the quantity should meet the requirements;

(5) Mountain-shaped card 6: outsourced or leased mountain-shaped card 6 that matches the steel pipe, its quality should meet the standards, and the quantity should meet the needs;

(6) Nut 7: Purchase mountain-shaped nut 7 matching the bolt, the quality should meet the standard, and the quantity should meet the requirements.

2. Preparation

(1) During the construction of the lower structure, pre-embed the anchoring steel bar 3 in the concrete at the corresponding positions on both sides of the side column, about 150mm from the side of the column, not less than 100mm from the edge of the structure, the length of the embedded concrete is not less than 100mm, and the exposed length is not less than 100mm. less than 100mm;

(2) Preparation of upper column formwork: lengthen the outer formwork 9 of the upper side column downwards by no less than 100mm along the height direction.

3. Device installation

(1) Paste the sealing strip 8 on the top of the outer side of the lower side column near the seam;

(2) supporting the upper column formwork, wherein the extended part of the outer formwork 9 of the upper side column is located below the horizontal joint of the column, covering the joint and attached to the surface of the constructed lower column 10;

(3) Assemble the hook bolt 4 with the mountain-shaped clip 6 and the nut 7: install the mountain-shaped clip 6 and the nut 7 in sequence from the inside to the outside on the threaded section at the end of the hook bolt 4;

(4) Install the hook bolt 4: put the hook bolt 4 flat on the top surface of the lower beam slab, hook the anchoring steel bar 3 with the hook, and tie it with iron wire for temporary fixation;

(5) Install the support pipe 5: place the support pipe 5 against the formwork back corrugated 2 and install it between the formwork back corrugated 2 and the mountain clamp 6, and place the two support pipes 5 above and below the bolts, In the groove of type card 6;

(6) Tighten the nut 7 to lock.

Claims (8)

1. A sealing and reinforcing device for the formwork of the joint part of the concrete side column, including a formwork for the joint part extending below the horizontal joint of the column along the outer formwork of the upper side column, and the formwork for the joint part includes a formwork panel and a formwork back It is characterized in that the sealing reinforcement device also includes hook bolts arranged on both sides of the bottom of the column formwork and parallel to the lower roof in parallel, and the front end of each hook bolt is fixedly connected to the lower roof through anchoring steel bars; Two support tubes are arranged between the two hook bolts, which are respectively located on the upper and lower sides of the hook bolts, are fixedly connected to the hook bolts through mountain-shaped clips, and are located on the back of the template; The end of each hook bolt mentioned above is respectively provided with a nut for locking. 2. The sealing reinforcement device for the formwork of the concrete side column joint according to claim 1, wherein the formwork panel is located in the inner layer close to the outer side of the lower column, and is provided with a seal near the horizontal joint of the column. strip. 3. The sealing and reinforcing device for the formwork at the joint of concrete side columns according to claim 1, wherein the front end of the hook bolt is provided with a 180° hook whose bending diameter is equal to the diameter of the anchoring steel bar. match. 4. The sealing reinforcement device for the formwork at the joint of concrete side columns according to claim 1 or 3, characterized in that the hook bolts are made of round steel with a diameter not less than 16mm and a length of 410-450mm . 5. The sealing and reinforcing device for the formwork at the joint of concrete side columns according to claim 1, characterized in that, the top of the anchoring steel bar is provided with a 90° hook, which is not less than 20mm in diameter and not less than 250mm in length Made of steel. 6 . The sealing reinforcement device for the formwork at the joint of concrete side columns according to claim 1 , wherein the support pipe is made of a steel pipe with a diameter of 48 mm and a length greater than the width of the side column. 7 . 7. The sealing and reinforcing device for the formwork at the joint of concrete side columns according to claim 1, wherein the length of the formwork at the joint is not less than 100mm. 8 . The sealing reinforcement device for the formwork at the joint of concrete side columns according to claim 2 , wherein the sealing strip is composed of a self-adhesive foam plastic sealing strip with a specification of 15-20 mm.