JP3041828U - Formwork for forming multi-natural concrete exposed surface - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To provide a formwork capable of easily producing an uneven pattern on an exposed surface of concrete. SOLUTION: On one side of a rebar wire mesh having a large number of openings formed by arranging steel bars vertically and horizontally in a rebar frame, a rough surface having air permeability and water permeability having a larger area than this rebar wire mesh. The stretchable fabric was fixed so that it could protrude from the mesh to form a mold.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention is a reef for aquaculture of aquatic resources, and seawalls, levees, breakwaters, breakwaters, artificial reefs, breakwaters, root works, and flood control for disaster prevention such as typhoons, floods, earthquakes, and tsunamis. It relates to a formwork for the construction of concrete structures used in the construction of dams and other civil engineering structures.

[0002]

[Prior art]

 Traditionally, concrete structures are manufactured using a formwork made of flat plates made of steel, plastic, or rubber.

When the surface of the uneven pattern is produced, a decorative form is made of rubber or plastic and is attached to the main form separately from the main form.

[0004]

[Problems to be solved by the device]

 The finished surface of a concrete structure manufactured using a form such as a conventional flat plate is smooth and has no irregularities, so the concrete surface stands out as an artificial one, does not match the natural scenery, and destroys the natural environment. The situation is remarkable.

Further, in terms of aquaculture resource aquaculture, since the finishing surface is a flat surface, seaweed seeds necessary for aquaculture of seafood are difficult to attach, and seaweed is peeled off from the root by a wave of 3 m or more. It will be stripped off.

According to the conventional method of giving a concavo-convex pattern, some consideration is given to the natural landscape, but each concavo-convex surface is smooth, and the adhesion of seaweed seeds is not sufficient.

In addition, in order to produce this uneven pattern, a separate decorative mold is required, and the uneven pattern is limited, or it is necessary to prepare decorative molds of various shapes, which is costly. Not only increases the number of manufacturing processes, but also increases the number of manufacturing processes.

[0008]

[Means for Solving the Problems]

 The present invention provides a formwork in which an inexpensive reinforced wire mesh is combined with a cloth, and the cloth swells under the load of concrete from the mesh of the wire mesh, and an uneven pattern can be easily produced on the exposed surface of the concrete.

Not only can various patterns be created that match the natural environment by forming various wire mesh patterns, but the use of cloth can create a roughened finished surface, which enables the construction of concrete structures suitable for aquaculture of aquatic resources. Can be manufactured.

[0010]

[Embodiment of the invention]

 The present invention is a combination type in which steel bars with a diameter of 10 mm to 20 mm are used to form a reinforcing bar wire mesh inside a frame of reinforcing bars to form a reinforcing bar wire mesh and a 0.2 mm to 1.0 mm thick canvas is attached to the inside. Framed. In this attachment, the canvas is fixed at an appropriate position so that it can protrude from the mesh.

The cloth used here is not limited to canvas, and vinyl or PP cloth may be used as long as it has breathability, water permeability and some stretchability.

When manufacturing a concrete structure, the combination formwork is fixed to a main frame such as a quadrangle or an octagon formed by only a skeleton by bolting or locking it with a hanging tool, and the concrete is put inside the frame. Pour in to make a concrete structure. On the surface of the concrete structure, the canvas placed inside bulges from the mesh of the reinforced wire mesh due to the concrete load and forms an uneven pattern. In addition, the exposed finished surface is the same as the rough surface of the canvas, leaving a rough finish.

Since the wire netting frame to which the canvas is attached can be attached to and detached from the main frame, it is possible to form irregularities of various patterns and sizes by selecting a wire net having an arbitrary pattern.

According to the combination form of the wire net and the cloth of the present invention, it is possible to easily and inexpensively manufacture a concrete structure that matches the natural landscape and is suitable for aquaculture of aquatic resources.

[0015]

【Example】

 Next, the present invention will be described according to an embodiment shown in the drawings.

[0016] A reinforced wire mesh is produced by passing a bar 2 with a deformed bar of 13 mm in diameter at intervals of 20 mm and diagonally 45 degrees in both directions on a square frame 1 made of equilateral angle steel with a thickness of 6 mm x 50 mm x 50 mm. Then, on one side of this reinforced wire mesh, a peripheral part and a suitable part of the center of the cloth 3 (made by Tosco Co., Ltd. of Chery Dia Co., Ltd.) with a thickness of 0.8 mm and a size of 1.00 x 1.20 m ² are fixed to the cloth with clips or the like. To form a wire mesh form A.

The crosspiece may be bent or curved to form a wire mesh having a free pattern as shown in FIG. This makes it possible to create a desired uneven pattern. It is also possible to have a different pattern for each side.

This wire mesh form A is attached to all side and bottom surfaces of a main frame 4 made of a cubical rebar frame that is separately manufactured, concrete is poured into the inside, and finally pressure is applied to form the upper wire mesh form. To do. After the concrete was poured, the canvas 3 on the inner side of the form swelled out from the diamond-shaped mesh 5 of the reinforced wire mesh due to the load of concrete, and the exposed surface of the cubic concrete concrete structure had an uneven masonry pattern of about 25 mm. . Therefore, by adding 13 mm in diameter of the bar steel bar that forms the crosspiece, an unevenness of approximately 40 mm can be formed. In addition, the finished surface is rough because the coarse texture of the canvas appears as it is.

[0019]

[Effect of the invention]

 With the formwork load that combines the reinforced wire mesh and cloth of the present invention, it is possible to form an uneven pattern on the finished surface of the concrete that has been produced, and since it has the texture of the cloth, it is artificial even if it consists of the conventional smooth surface. Unlike concrete structures, it not only enables patterns that match the natural environment, but it is also suitable for aquaculture of aquatic resources.

Further, the wire mesh formwork used in the present invention has a small amount of steel material, so the material cost is low, and since it can be easily manufactured, the manufacturing cost can be reduced to one-third that of the conventional one.

[Brief description of the drawings]

FIG. 1 is a perspective view of a wire mesh form A in which a reinforcing wire mesh and a cloth are combined.

FIG. 2 is a perspective view of attaching a wire netting form A to a main frame.

FIG. 3 is a view of a reinforcing wire mesh with various patterns.

[Explanation of symbols]

 1 frame 2 crossbar 3 cloth 4 main frame 5 mesh A wire mesh formwork

Claims (1)

[Utility model registration claims] 1. A reinforced wire mesh having a large number of openings formed by arranging steel bars vertically and horizontally inside a reinforcing bar frame on one side, and having a larger area than the reinforced wire mesh and having a permeability and a permeability. A formwork for forming a multi-natural concrete exposed finish surface, in which a stretchable and stretchable fabric is fixed so that it can protrude from the mesh.