CN204531384U - Exempt from boring shear wall construction template system - Google Patents

Abstract

The utility model discloses a drilling-free shear wall construction formwork system, which comprises an inner formwork and an outer formwork forming the inner cavity of the pouring shear wall. A gap is formed between them, and there are slats in the gap, and a gap is formed between two adjacent slats for the water-stop screw to pass through. A horizontal steel pipe is arranged on both sides of the water-stop screw on the outside of the wooden frame. Fasteners are provided on the outside of the steel pipe. In this way, the drilling work on the splint is avoided through intervals. On the one hand, the number of repeated uses of the splint is effectively increased, the service life of the splint is extended, and the construction cost is reduced. On the other hand, the shear wall is reduced because the water-stop screw does not pass through. The work intensity of the installation and disassembly of the splint can be reduced, the workload of the workers can be reduced, the work efficiency can be improved, the construction period can be shortened, and at the same time, the phenomenon of splint leakage due to drilling can be reduced, and the construction quality of the shear wall can be improved.

Description

Drill-free shear wall construction formwork system

technical field

The utility model is used in the field of building construction, in particular to a drilling-free shear wall construction formwork system.

Background technique

The water stop screw is usually used in the pouring of the basement shear wall to fix the formwork and control the thickness of the concrete pouring. The difference from ordinary wall-through screws is that 1. There is a water-stop sheet in the middle of the water-stop screw; 2. When removing the formwork, the ordinary wall-through screw is pulled out as a whole and reused. In the wall to ensure the impermeability of the wall.

All the time, the construction projects such as the basement of construction all over the country, cesspool, water storage tank, the installation of formwork all is to adopt the construction method of drilling and penetrating water-stop screw rod on the formwork. After the holes are drilled on the formwork, about 6 to 9 holes are required for each standard plywood surface of 915×1830; after the formwork is drilled, if the removed formwork is used as a shear wall formwork or floor formwork for ground engineering On the one hand, the original drill hole leaks grout when pounding the concrete, which not only affects the structure of the concrete, but also affects the appearance of the concrete, and the number of repeated use is only 50% to 60% of that of the undrilled plate, which seriously affects the repeated use quality of the formwork. Relatively, the project cost is increased; in addition, due to the water-stop ring in the middle of the water-stop screw of the underground project, it is particularly difficult to thread the screw when installing the formwork. It is difficult to remove a template, which greatly increases the workload of workers and prolongs the construction period of underground works.

Utility model content

In order to solve the above problems, the utility model provides a drilling-free shear wall construction formwork system that improves the reuse rate of the formwork and the construction effect, saves the construction cost, reduces the workload of the workers, and shortens the construction period.

The technical solution adopted by the utility model to solve the technical problem is: a drilling-free shear wall construction formwork system, including an inner formwork and an outer formwork, and an inner cavity for pouring a shear wall is formed between the inner formwork and the outer formwork. A number of water-stop screws for fixing the inner formwork and the outer formwork are provided through the inner cavity. The inner formwork and the outer formwork each include a number of splints arranged in sequence from bottom to top and a number of wooden beams arranged longitudinally on the outside of the splint. The internal and external templates form gaps of equal height inside and outside between two adjacent splints. Each of the gaps is provided with a number of slats arranged horizontally in sequence. Each of the gaps is formed between two adjacent slats. The space between the two ends of the water-stop screw, the outside of the wooden frame is provided with a horizontal steel pipe on the upper and lower sides of the water-stop screw in the same crack, and the water-stop screw is provided with a pressure pipe on the outside of the steel pipe. Tighten the fasteners of the steel pipe.

As a further improvement of the technical solution of the utility model, the fastener includes a butterfly buckle that presses the steel pipes on the upper and lower sides of the water-stop screw and a nut installed outside the butterfly buckle.

As a further improvement of the technical solution of the utility model, it also includes a number of steel bars located outside the bottom of the wooden beam and pre-embedded in the bottom plate. Each of the steel bars forms an end exposed from the bottom plate. There is a presser foot square wood between the ends.

As a further improvement of the technical solution of the utility model, the water-stop screw includes a screw body, a water-stop piece installed in the middle of the screw body, and positioning pieces mounted on the screw body and located on the front and rear sides of the water-stop piece.

As a further improvement of the technical solution of the utility model, each of the slats has the same thickness as the plywood and is fixedly connected to the plywood at the bottom by fastening iron nails.

Beneficial effects of the utility model: the utility model adopts a newly designed inner formwork and an outer formwork. The inner formwork and the outer formwork form gaps of equal height inside and outside between two vertically adjacent splints. Arranged slats, each gap forms a gap between two adjacent slats for the two ends of the water-stop screw to pass through, so that the drilling work on the splint is avoided through this gap, and the repetition of the splint is effectively improved on the one hand. The number of times of use prolongs the service life of the plywood. On the other hand, it reduces the work intensity of the installation and removal of the plywood because the shear wall does not penetrate the water-stop screw, reduces the workload of workers, reduces the construction cost, improves work efficiency, and shortens the construction period. , At the same time, it also reduces the phenomenon of splint leakage due to drilling, which helps to improve the construction quality of the shear wall.

Description of drawings

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

Fig. 1 is a schematic cross-sectional view of the overall structure of an embodiment of the utility model;

Fig. 2 is a side view of the overall structure of the utility model embodiment;

Fig. 3 is a partial enlarged view of A in Fig. 2;

Fig. 4 is a partial enlarged view of place B in Fig. 2;

Fig. 5 is a schematic diagram of the connecting structure of the plywood and the slats according to the embodiment of the present invention.

Detailed ways

Referring to Figures 1 to 5, the utility model provides a drilling-free shear wall construction formwork system, including an inner formwork 1 and an outer formwork 2, and the inner formwork 1 and the outer formwork 2 form an inner formwork for pouring a shear wall. Cavity 3, through the inner cavity 3, there are several water-stop screws 4 for fixing the inner formwork 1 and the outer formwork 2. The water-stop screw 4 includes a screw body, a water-stop piece installed in the middle of the screw body and a The positioning pieces on the screw body and located on the front and rear sides of the water-stop piece. The inner formwork 1 and the outer formwork 2 all include a number of splints 5 arranged sequentially from bottom to top and some wooden beams 6 arranged longitudinally on the outside of the plywood 5, and the inner formwork 1 and the outer formwork 2 are arranged on two adjacent splints 5 A gap 51 of equal height inside and outside is formed between each gap 51. A number of slats 52 arranged horizontally in sequence are arranged in each gap 51. Each of the slats 52 has the same thickness as the splint 5 and is fixed to the splint 5 at the bottom by fastening nails. connected, each of the cracks 51 forms a gap 53 between two adjacent slats 52 for the two ends of the water-stop screw 4 to pass through, and the outside of the wooden frame 6 is above and below the water-stop screw 4 in the same crack 51 A horizontal steel pipe 7 is arranged on both sides, and the fasteners for pressing the steel pipe 7 are arranged on the outside of the water-stop screw 4 on the steel pipe 7 . The fastener includes a butterfly buckle 71 that compresses the steel pipes on the upper and lower sides of the water-stop screw 4 and a nut 72 mounted on the outside of the butterfly buckle 71 . It also includes a number of steel bars 8 located outside the bottom of the wooden frame 6 and pre-embedded in the bottom plate. Each of the steel bars 8 forms an end 81 exposed from the bottom plate. Presser foot square wood 82. The top and bottom of the inner formwork 1 and the outer formwork 2 are respectively fixed by the water-stop screw rod 4 and the presser foot square wood 82.

The utility model also provides a method for constructing a shear wall using the above-mentioned drilling-free shear wall construction formwork system, including the following steps:

A. Construct the concrete 9 of the base plate of the shear wall, form the construction joint 91 of the shear wall on the concrete 9 of the base plate, set a water-stop steel plate 92 at the middle position of the top of the construction joint 91 of the shear wall, and Two rows of steel bars 8 are pre-embedded in the front and rear of the construction joint 91. The steel bars 8 are waste steel bars with a diameter of 14 mm to 20 mm and a length of 200 mm to 350 mm. Vertical end 81, the length of said end 81 is not less than 80mm, and the distance between two adjacent steel bars 8 in the same row is 1000mm;

B. Lay plywood on both sides of the inside and outside of the shear wall construction joint 91. The plywood 5 adopts a standard plywood of 915×1830. When the plywood 5 is laid, it is installed horizontally. The top end face of the slats 52 are installed successively, and the slats 52 are pre-sawed into the same thickness as the splint 5 and have a length of 300mm. A gap 53 that can accommodate the water-stop screw 4 is reserved between two adjacent slats 52 on the same side splint 5, and then the water-stop screw 4 is horizontally erected in the gap 53 at the top of the splint 5 on both sides, and the water-stop screw The two positioning pieces on the 4 are against the insides of the slats 52 at the top of the splint 5 on both sides respectively;

C. Repeat step B, and the plywood 5 on both sides is laid to the design elevation of the shear wall;

D. Longitudinal wooden beams 6 are arranged on the outer sides of the plywood 5 on both sides, and a horizontal steel pipe 7 is set on the upper and lower sides of the water-stop screw 4 on the outside of the wooden beam 6, and on the water-stop screw 4 The butterfly buckle 71 that compresses two steel pipes 7 is set, the outer side of the butterfly buckle 71 is locked by a nut 72, and the bottom end of the wooden beam 6 is pressed by a presser foot square wood 82 horizontally arranged on the inner side of the end of the steel bar 8, Above the construction joint 91 of the shear wall, an inner cavity 3 of the pouring shear wall is formed between the splints 5 on both sides of the inside and outside;

E. Concrete is poured into the inner cavity 3, and the concrete is poured layer by layer for several times. When the age reaches the design requirements, the inner formwork 1 and the outer formwork 2 are removed, and the exposed water-stop screw 4 is cut off.

The utility model adopts a newly designed inner formwork 1 and outer formwork 2. The inner formwork 1 and the outer formwork 2 form gaps 51 of equal height inside and outside between two adjacent splints 5 in the longitudinal direction. Arranged slats 52, each gap 51 forms a gap 53 between two adjacent slats 52 for the two ends of the water-stop screw 4 to pass through, so that the drilling work on the splint 5 is avoided through this gap 53, on the one hand Effectively improves the number of times of repeated use of the splint 5, the number of times of repeated use is increased by 50% to 60%, prolonging the service life of the splint 5, on the other hand, reducing the installation and removal of the splint because the shear wall does not pass through the water-stop screw 4 Work intensity, reduce the workload of workers, reduce construction costs, improve work efficiency, shorten the construction period, and also reduce the occurrence of splint 5 due to drilling and slurry leakage, which helps to improve the construction quality of the shear wall.

Of course, the present invention is not limited to the above-mentioned embodiments. Those skilled in the art can also make equivalent modifications or replacements without violating the spirit of the present utility model. These equivalent modifications or replacements are all included in the claims of this application. within the limited range.

Claims (5)

1. A drilling-free shear wall construction formwork system is characterized in that: comprise inner formwork and outer formwork, form the inner cavity of pouring shear wall between described inner formwork and outer formwork, pass through described inner cavity and be provided with A number of water-stop screws for fixing the inner formwork and the outer formwork. The inner formwork and the outer formwork each include a number of splints arranged in sequence from bottom to top and a number of wooden beams arranged longitudinally on the outside of the plywood. A gap of equal height inside and outside is formed between two adjacent splints, and a number of slats arranged horizontally in sequence are arranged in each of the gaps, and a gap is formed between two adjacent slats in each of the gaps for the two ends of the water-stop screw to pass through. A horizontal steel pipe is provided on the upper and lower sides of the water-stop screw in the same crack on the outside of the wooden beam, and a fastener that compresses the steel pipe is provided on the outer side of the steel pipe on the water-stop screw . 2. The drilling-free shear wall construction formwork system according to claim 1, characterized in that: the fasteners include butterfly buckles that compress the steel pipes on the upper and lower sides of the water-stop screw and nuts mounted on the outside of the butterfly buckles . 3. The formwork system for drilling-free shear wall construction according to claim 1, characterized in that: it also includes a number of reinforcing bars located outside the bottom of the joist and pre-buried in the bottom plate, and each of the reinforcing bars forms an exposed The end of the bottom plate is provided with a presser foot square wood between the end and the bottom end of the wooden beam. 4. The formwork system for drilling-free shear wall construction according to claim 1, characterized in that: the water-stop screw includes a screw body, a water-stop piece installed in the middle of the screw body, and a water-stop sheet mounted on the screw body. And it is located at the positioning pieces on the front and back sides of the water-stop piece. 5. The formwork system for drilling-free shear wall construction according to claim 1, characterized in that: each of the slats has the same thickness as the plywood and is fixedly connected to the plywood at the bottom by fastening iron nails.