CN209854765U - Long fiber plastic inner angle template for pipe gallery concrete structure construction - Google Patents

Abstract

The utility model belongs to the technical field of construction engineering, and in particular relates to a long-fiber plastic inner corner formwork used in the construction of concrete structures in pipe corridors. , there is a distance between the two layers of side ribs, and a number of reinforcing ribs are provided in the middle; a number of connecting holes are arranged side by side on the inner and outer side ribs in the two transverse directions, and a number of connecting holes are arranged side by side on the inner and outer side ribs in the two longitudinal directions. There is a tie rod hole through the wall, and the connecting handle is passed through the connecting hole to fix the two adjacent inner corner formworks; the formwork speeds up the construction progress, ensures the quality of the concrete structure, reduces the input of the traditional process of circulating materials, and saves the construction cost , has produced considerable benefits, the formwork can be recycled and regenerated, it is an environmentally friendly high-tech composite formwork, which saves resources; it does not absorb water and does not deform, ensuring the quality of the concrete structure; it is easy to demould, making it easier for workers to operate; and it is corrosion-resistant, acid-resistant, Good alkali resistance.

Description

Long-fiber plastic inner angle formwork for concrete structure construction of pipe gallery

technical field

The utility model belongs to the technical field of construction engineering, in particular to a long-fiber plastic inner angle formwork used for the construction of a concrete structure of a pipe gallery.

Background technique

As a municipal infrastructure project vigorously promoted by local governments at all levels in recent years, urban comprehensive pipe gallery facilitates the construction, maintenance and management of various urban pipelines. At the same time, it saves long-term investment. Once a new construction is qualified, it can be used for up to 100 years , To a large extent, it facilitates the production and life of the people. However, on the basis of traditional crafts, most of them use bamboo plywood, wood formwork or steel formwork. These three forms are not recyclable. The corrosion resistance, acid resistance, and alkali resistance of steel formwork are poor, and the number of times of repeated use is small, which is not conducive to environmental protection and cost saving. Therefore, how to quickly build a comprehensive urban utility corridor with high quality and quantity, put it into use, and generate benefits in a timely manner is the driving force for engineering and technical personnel to continuously improve construction methods and technological innovation.

Utility model content

Aiming at the problems in the prior art, the utility model provides a long-fiber plastic inner corner formwork for the construction of the concrete structure of the pipe gallery, forming a construction method of the long-fiber reinforced ribbed plastic formwork, which speeds up the construction progress and ensures the quality of the concrete structure. It reduces the input of the traditional craft workweek, saves the construction cost, and produces considerable benefits.

For realizing above-mentioned technical purpose, the technical scheme that the utility model adopts is as follows:

The long-fiber plastic inner corner formwork used for the construction of the concrete structure of the pipe gallery includes the formwork bottom plate and the vertical and horizontal side ribs arranged vertically around the formwork bottom plate. The vertical and horizontal side ribs form a rectangle, and the side ribs are composed of inner and outer layers. There is a distance between the two layers of side ribs, and several reinforcing ribs are arranged between the inner and outer two layers of side ribs; a number of connecting holes are arranged side by side on the inner and outer two layers of side ribs in the two transverse directions, A tie rod hole through the wall is provided on the side rib, and two adjacent inner corner formworks are fixed through the connecting handle in the connecting hole.

The long-fiber plastic inner corner formwork with this design is suitable for the construction of urban comprehensive pipe gallery formwork. Since the side ribs are composed of double layers, the overall weight of the formwork can be reduced, and the structural quality and strength of the formwork can be guaranteed, making the formed concrete structure stronger. Due to the use of the connecting handle, it is convenient for workers to disassemble and assemble, and the installation of the entire project formwork can be completed more quickly, and the construction efficiency can be accelerated.

It is further defined that cross-shaped reinforcing ribs are provided between the longitudinal and transverse side ribs to further strengthen the bearing strength of the entire formwork.

It is further defined that the cross-shaped reinforcing rib is composed of inner and outer layers, with several connecting ribs in the middle, which can reduce the quality while ensuring the overall structural quality of the formwork, which is convenient for workers to save time and effort during installation, and also saves the cost of materials.

Further defined, the connecting hole is butterfly-shaped.

It is further defined that the connection handle is L-shaped, which includes a cylindrical main body and a U-shaped handle. The protruding block, the shape of the protruding block and the main body match the butterfly-shaped connecting hole, the upper end of the main body is provided with a rotation hole; the U-shaped handle is provided with arc-shaped ribs, and the handles are side by side along its length There are several moment holes.

Further defined, the material of the inner corner formwork is composed of polypropylene resin and glass fiber.

Further defined, the mixing ratio of polypropylene resin and glass fiber material is 7:3.

Compared with the prior art, the utility model has the beneficial effects that: the plastic inner corner formwork forms the construction method of the long-fiber reinforced ribbed plastic formwork, which speeds up the construction progress, ensures the quality of the concrete structure, and reduces the turnover of the traditional process. The input of materials saves construction costs and produces considerable benefits. The design is used 100 times, and the quality is guaranteed to be used 60 times. The formwork can be recycled and regenerated. It is an environmentally friendly high-tech composite material formwork.

The long-fiber plastic inner corner formwork can also be recycled and used to save resources; it does not absorb water and deform, ensuring the quality of the concrete structure; it is easy to demould, making it easier for workers to operate; and it is corrosion-resistant, acid-resistant, and alkali-resistant, and it is stronger when used outdoors.

Description of drawings

Fig. 1 is the main view structure schematic diagram of the utility model;

Fig. 2 is a schematic diagram of the bottom view of Fig. 1;

Fig. 3 is a schematic diagram of the right view structure of Fig. 1;

Fig. 4 is a three-dimensional structural schematic diagram of the connecting handle;

Fig. 5 is a schematic structural diagram of the front view of the connection and installation of the long-fiber plastic inner corner formwork used for the construction of the concrete structure of the pipe gallery.

Detailed ways

In order to enable those skilled in the art to better understand the present invention, the technical solution of the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

The long-fiber plastic inner angle formwork used for the construction of the pipe gallery concrete structure shown in Figure 1, Figure 2, Figure 3, Figure 4, and Figure 5, the material of the inner angle formwork is composed of polypropylene resin and glass fiber, polypropylene resin and glass fiber The preferred ratio of material mixing is 7:3. The long-fiber plastic inner corner formwork includes a formwork bottom plate 1 and vertical ribs 2 and transverse ribs 3 that are vertically arranged around the formwork bottom plate 1. The longitudinal and transverse ribs form a rectangle and formwork. Bottom plate 1 is designed in one piece, and is integrally formed by LET-D direct process online molding process. In addition, longitudinal rib 2 and transverse rib 3 are composed of inner and outer layers, and there is a distance between the two layers of ribs. A number of reinforcing ribs 4 are provided between the inner and outer two-layer side ribs of the horizontal side rib 3; a number of connecting holes 5 are arranged side by side on the two two-layer horizontal side ribs 3, and a number of connecting holes 5 are arranged on the two inner and outer layer longitudinal side ribs 2 The tie rod hole 6 through the wall, the connecting handle 7 passes through the connecting hole 5 to fix two adjacent inner corner formworks, and the connecting hole 5 is butterfly-shaped.

The connecting handle 7 is L-shaped, and it includes a cylindrical main body 71 and a U-shaped handle 72. The main body 71 is thicker at the top and thinner at the bottom, and the lower half of the main body 71 is passed through the connecting hole 5. 1. The upper half has a position-limiting effect. The lower end of the main body 71 is provided with a protruding block 73 that protrudes from the outer wall and is symmetrically designed. The shapes of the protruding block 73 and the main body 71 match the butterfly-shaped connecting hole 5. The main body The upper end of part 71 is provided with rotating hole 711, and lever tool can be inserted in rotating hole 711, is used for rotating the position that connecting handle 7 is installed in connecting hole 5, and after main body part 71 passes through connecting hole 5, protruding block 73 is connected with Holes 5 are staggered to form a locked state, and the connecting handle 7 cannot be pulled out of the connecting hole 5, which can stably connect two adjacent long-fiber plastic inner angle formworks; The handle part 72 is in order to save material. The arc-shaped rib has the effect of strengthening the strength of the handle part 72, and the handle part 72 has several torque holes 721 arranged side by side along its length direction. The lever tool is inserted into the torque hole 721. The torque is adjusted according to the distance, so that it is easier to rotate the connecting handle 7, which is convenient for workers to install better.

Between the longitudinal side rib 2 and the transverse side rib 3, a cross-shaped reinforcing rib 8 is provided. The straddle is connected on the formwork bottom plate 1, and the four ends are connected to the inner sides of the longitudinal side ribs 2 and the transverse side ribs 3, that is, the strength of the side ribs is fixed and strengthened, and the strength of the formwork bottom plate 1 is strengthened.

When installing, take the outer wall thickness of 400mm and the inner wall thickness of 300mm as an example, the long-fiber plastic inner corner formwork adopts a thickness of 80mm, the outer keel adopts 48mm×3.5mm double steel pipes, and the side wall is set The wall-through tie rod, the wall-through tie rod passes through the wall-through tie rod hole 6, the wall-through tie rod is connected with the cross-shaped reinforcing rib through the "ε" type card and nut, and the distance between the pull screw rods is 400×400mm. For the outer wall that requires waterproofing, use waterproof opposite pull screws, and the length of the waterproof screw is the thickness of the wall H+2*280mm. After the long-fiber plastic inner corner formwork is removed, cut off the exposed part of the screw with a cutting machine in time, and use a special handle to connect the long-fiber plastic inner corner formwork.

The side formwork of the wall should be removed according to the air temperature and the grade and strength growth rate of the concrete. According to the data provided by the laboratory, the concrete must reach 1MPa at room temperature before the formwork can be removed, and the concrete must reach the critical strength of freezing in winter. Remove the formwork, and at the same time ensure that the wall is not missing corners and does not stick to the formwork when removing the formwork.

The long-fiber plastic inner corner formwork is dismantled from top to bottom, and it is strictly forbidden to forcibly remove the formwork; the demoulding process must be directed by a special person; the small parts after dismantling are stacked together to prevent loss; after the long-fiber plastic inner corner formwork is cleaned, brush and demould Agents, stacked neatly for use.

The quality control of the long-fiber plastic inner corner formwork must comply with the "Technical Specifications for Urban Comprehensive Pipe Gallery Engineering" (GB50838), "Code for Construction and Acceptance of Water Supply and Drainage Structure Engineering" (GB 50141), "Code for Construction Quality Acceptance of Concrete Structure Engineering" (GB 50204 ), "Building Construction Formwork Safety Technical Specifications" (JGJ 162) standard requirements, long-fiber plastic inner corner formwork combination size deviation is as follows:

The appearance quality requirements of long fiber plastic inner corner formwork are as follows:

Quality assurance measures for long fiber plastic inner corner formwork:

1. The long-fiber plastic inner corner formwork and its support meet the requirements of bearing capacity, stiffness and stability when pouring concrete, and the installation is firm, which meets the requirements of the scheme.

2. The installation position of the long-fiber plastic inner corner formwork in each part is correct, and the joints are tight without leakage; the pull bolts and spacers are installed firmly; the embedded parts and reserved holes on the long-fiber plastic inner corner formwork must not be missed, and the installation firm.

3. The long-fiber plastic inner corner formwork is clean, the release agent is evenly applied, and there is no stain on the steel bar and concrete stubble.

4. Before pouring concrete, the debris in the long-fiber plastic inner corner formwork must be cleaned.

The basis for inspection of long-fiber plastic inner corner formwork is as follows:

Long-fiber plastic inner corner formwork is a new energy-saving and environmentally friendly material with high technological content, can be reused many times, and can be recycled and recycled; at the same time, compared with traditional wood formwork, it does not need to use a large amount of steel pipes and wood. In addition, due to the reinforcement and ribs, the setting of keels in the shear wall is reduced, and the use of labor, machinery and nails is reduced, and the effectiveness of civilized construction management is significantly improved, which is in line with "energy saving and emission reduction" and brings good environmental protection and energy saving benefits.

The long-fiber plastic inner corner formwork has a high turnover rate, and can be completely recycled, completely eliminating environmental pollution, which reflects the good environmental benefits of Eante formwork. For example: Taking the standard section (20m) of the comprehensive pipe gallery as an example, the long-fiber plastic inner corner formwork and traditional wood formwork are used for project construction. It can be calculated that the total cost of traditional wooden formwork is about 100,000 yuan, and the total cost of long-fiber plastic inner corner formwork is about 280,000 yuan. Because the turnover times of long-fiber plastic inner corner formwork can reach 60-80 times, while the average turnover times of traditional wooden formwork is 3-5 times, and the cost of traditional wooden formwork and long-fiber plastic inner corner formwork tends to be about 12 times during construction. In the same way, after using more than 12 turnover times, the comprehensive economic benefits of the long-fiber plastic inner corner formwork are greater than that of the traditional wood formwork. From the above analysis, it can be seen that the economic benefits of long-fiber plastic inner corner formwork are positively correlated with the increase in the number of uses. After scientific and reasonable use, the economic benefits of plastic formwork are much higher than that of traditional wood formwork.

The long-fiber plastic inner corner formwork used for the construction of the concrete structure of the pipe gallery provided by the utility model has been introduced in detail above. The description of specific embodiments is only used to help understand the method and core idea of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made to the utility model, and these improvements and modifications also fall into the protection of the claims of the utility model. within range.

Claims (5)

1. The long-fiber plastic inner angle formwork used for the construction of the concrete structure of the pipe gallery is characterized in that it includes a formwork bottom plate and vertically arranged vertical and horizontal side ribs surrounding the formwork bottom plate, and the vertical and horizontal side ribs form a rectangle, and the side ribs It is composed of two layers of inner and outer layers. There is a distance between the two layers of side ribs. There are several reinforcing ribs between the inner and outer layers of side ribs; The inner and outer side ribs in the longitudinal direction are provided with a wall-through tie rod hole, and the connecting handle is passed through the connecting hole to fix two adjacent inner corner formworks. 2. The long-fiber plastic inner corner formwork for the construction of the concrete structure of the pipe gallery according to claim 1, wherein a cross-shaped reinforcing rib is provided between the longitudinal and transverse side ribs. 3. The long-fiber plastic inner corner formwork for the construction of the concrete structure of the pipe gallery according to claim 2, wherein the cross-shaped reinforcing rib is composed of inner and outer layers, and several connecting ribs are arranged in the middle. 4. The long-fiber plastic inner corner formwork for the construction of the concrete structure of the pipe gallery according to claim 1, wherein the connecting hole is butterfly-shaped. 5. The long-fiber plastic inner corner formwork for the concrete structure construction of the pipe gallery according to claim 4, wherein the connecting handle is L-shaped, and it includes a cylindrical main body and a U-shaped handle, The main body is thicker at the top and thinner at the bottom. The lower end of the main body is provided with a symmetrically designed protruding block protruding from the outer wall. The shapes of the protruding block and the main body match the butterfly-shaped connecting hole. The upper end of the main body is provided with Rotation hole; U-shaped handle part is provided with arc-shaped ribs, and the handle part has several moment holes arranged side by side along its length direction.