JPH07259286A - Outside stair constructing structure - Google Patents

Abstract

PURPOSE:To dispense with the framework of a form for the formation of a step floor and the arrangement of reinforcement such as zigzag reinforcement to be arranged by skilled laborers in outside stair constructing structure, and facilitate the work of forming a mortar bed for fitting finishing material such as tiles. CONSTITUTION:In the structure of an outside stair, U-shape grooves 4 made of concrete are disposed successively in step shape, and reinforcement 5 is appropriately arranged. Concrete is then placed in the U-shape grooves 4 to form a step floor 1 formed of treads 4a and raised parts 4b. A mortar bed is formed on the step floor 1, and finishing material is fitted thereon.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for constructing exterior stairs, and more particularly to a shared terrace staircase stairway on slopes and other large staircases, which are constructed of concrete exterior stairs. It concerns building structures.

[0002]

2. Description of the Related Art In a common structure such as a terrace house-type staircase on a slope or a large exterior staircase, a construction structure that has been conventionally implemented is generally constructed by cutting concrete on a slope made of cut soil, and then appropriately staking it. A stair formwork was assembled, and various reinforcing bars such as lightning rods with continuous mountain shapes were arranged along the treads and risers of the stairs. Form a terraced floor.
Then, it is constructed by forming a mortar base on this terrace and attaching finishing materials such as tiles.

[0003]

The conventional construction structures such as the exterior stairs have various problems in terms of construction and the like. That is, it is necessary to form a staircase formwork to form a step floor, and to arrange various types of reinforcing bars such as lightning rods, it requires a skilled worker for the construction, and the construction is easy. It cannot be said that there is. In addition, the accuracy of the concrete surface of the terraced floor with the formwork dismantled is generally poor, and repair is necessary to form a mortar base to attach the finishing material. Work is not easy.

The present invention has been made in view of the above-mentioned problems relating to the conventional construction structure of the exterior stairs, and its object is to eliminate the need to form a stair form for forming a staircase. In addition, it is not intended to provide a staircase construction structure that does not require rebar arrangements by skilled workers such as lightning rods and is easy to form a mortar base for attaching finishing materials such as tiles. is there.

[0005]

Means for Solving the Problems As a result of extensive studies on the solution of the above-mentioned problems, the present inventor has made a concrete U-shaped groove in a stepwise manner as a means for forming a step floor of an exterior staircase. Attention was paid to the structure of arranging and placing concrete in the U-shaped groove to form a stepped floor composed of a tread and a riser.

That is, according to the present invention, as means for achieving the above object, in the structure of the exterior stairs, U made of concrete
By arranging the V-shaped grooves in a stepwise manner and arranging them appropriately, concrete is placed in the U-shaped grooves to form a stepped floor consisting of treads and risers, and a mortar base is formed on the stepped floor. This is a building structure of exterior stairs consisting of attaching finishing materials.

The construction structure of the exterior staircase according to the present invention is one in which the stepped floor is formed by sequentially arranging concrete U-shaped grooves in a staircase pattern, and a terrace house type common staircase and other large staircases are formed. On stairs, etc., a large number of concrete U-shaped grooves will be placed side by side. Then, concrete is placed in the U-shaped groove arranged in a stepwise manner to form a step floor composed of a tread and a riser.

Next, in the present invention, each stage has a plurality of U's.
Consists of a V-shaped groove, the reinforcing bars that pass through the inside of the U-shaped groove are arranged, and the reinforcing bars for constructing the handrail are arranged at both ends of the U-shaped groove, and concrete is placed in each step. One unit. When a large number of U-shaped grooves made of concrete are continuously arranged in each step as described above and are sequentially arranged in a staircase to form a step floor, a joint portion of the U-shaped grooves of each step is formed. It is preferable that the concrete is placed by arranging the diagonal streaks passing through each step through the. Further, concrete is placed in each U-shaped groove made of concrete to form a step floor consisting of a tread and a riser, and then the tread is finished with a trowel in order to attach a finishing material such as a tile.

[0009]

In the construction structure of the exterior staircase according to the present invention, concrete U-shaped grooves are sequentially arranged in a staircase pattern, and concrete is placed in the U-shaped grooves to form a tread and a raised portion. It is not necessary to assemble a staircase formwork for forming a stepped floor because it is formed, and it can be easily constructed by only an external construction work.

Then, the reinforcing bars passing through the inside of the U-shaped groove are arranged, and the reinforcing bars for constructing the handrail are arranged at both ends of the U-shaped groove, and the joints of the U-shaped grooves at each stage are arranged. Since the concrete is placed by arranging the diagonal reinforcements that pass through each step through, it is not necessary to arrange reinforcements by skilled workers such as lightning reinforcement. In addition, the work of forming a mortar base for attaching a finishing material such as tiles is easy, and the tread surface and the like can be easily finished using a trowel without requiring special repair.

[0011]

EXAMPLES The present invention will be described below based on examples. FIG. 1 is a sectional view showing a construction structure of an exterior staircase according to the present invention. In this exterior staircase, waste concrete 3 is struck on the slope made of cut soil 2, and concrete U-shaped grooves 4 and 4 are sequentially arranged in a staircase pattern thereon. In each U-shaped groove arranged in each step, concrete is poured to form a step floor 1 composed of a tread 4a and a riser portion 4b. And
Finish the treads with a trowel to attach finishing materials such as tiles. Each step is made of concrete U
The character grooves are arranged side by side, but in FIG.
Is a diagonal bar that is arranged through each joint through the joint portion of the U-shaped groove of each step, and 7 is a reinforcing bar that passes through the inside of the U-shaped groove 4. Further, 6 in FIG. 1 indicates a ground level.

Next, FIG. 2 is a front view showing a state of reinforcing bars in the construction structure of the exterior stairs according to the present invention. That is, each step is formed by connecting a plurality of U-shaped grooves 4 and 4, the reinforcing bars 7 passing through the inside of the U-shaped groove are arranged, and the handrails are constructed at both ends of the U-shaped groove 4. The reinforcing bars 8 for use are arranged. Then, concrete is placed in the U-shaped groove 4 to make each step one unit. In addition, as described above, when a large number of concrete U-shaped grooves are continuously provided for each step and are sequentially arranged in a staircase to form a step floor, a joint portion of the U-shaped groove of each step is formed. The concrete is placed by arranging the oblique bar 5 passing through each step through the bar 9. By placing concrete in the U-shaped groove with the above-mentioned reinforcement arrangement, the structure of the staircase is firmly integrated, and it is not necessary to arrange the reinforcement of the lightning rod by a skilled worker as in the prior art. .

[0013]

According to the construction structure of the exterior staircase according to the present invention, concrete U-shaped grooves are sequentially arranged in a staircase pattern to appropriately arrange the bars, and concrete is placed in the U-shaped grooves to tread the surface. According to the present invention, (1) a U-shaped groove made of concrete is formed in order. Since the steps are arranged in a staircase to form a step floor consisting of a tread and a raised portion, it is not necessary to assemble a step formwork for forming the step floor, and it can be easily constructed by only the external construction work. . (2) Then, the reinforcing bars that pass through the U-shaped groove, the reinforcing bars for constructing the handrail at both ends of the U-shaped groove, and the diagonal bars that pass through each step through the joints of the U-shaped groove at each step are arranged. Since the concrete is reinforced, the staircase structure is firmly integrated without arranging by skilled workers such as lightning rods. (3) Further, the work of forming a mortar base for attaching a finishing material such as tiles is easy, and the tread surface can be easily finished with a trowel without requiring special repair. (4) Furthermore, when there are many steps in the stairs, concrete can be placed at each step to proceed with the construction, so that it is possible to construct one after another at a certain date and time.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a construction structure of an exterior staircase according to the present invention.

FIG. 2 is a front view showing a state of bar arrangement in the construction structure of the exterior stairs according to the present invention.

[Explanation of symbols]

1 Step floor 2 Cut soil 3 Discarded concrete 4 U-shaped groove 4a Tread 4b Raised part 5 Oblique line 6 Ground level 7 U-shaped groove inner rebar 8 Handrail construction reinforcing bar 9 U-shaped groove joint

Front page continued (72) Inventor Yasuo Ube 1-7-1 Kyobashi, Chuo-ku, Tokyo Toda Construction Co., Ltd. Tokyo branch office (72) Eiji Yamashita 1-7-1 Kyobashi, Chuo-ku, Tokyo Toda Construction Co., Ltd. Ceremony Company Tokyo Branch

Claims (3)

[Claims] 1. In the structure of an exterior staircase, concrete U-shaped grooves are sequentially arranged in a staircase pattern and appropriately arranged, and concrete is placed in the U-shaped grooves to be composed of a tread and a raised portion. A structure for constructing an external staircase, characterized in that a step floor is formed, a mortar base is formed on the step floor, and a finishing material is attached. 2. Each step is composed of a plurality of U-shaped grooves, reinforcing bars passing through the inside of the U-shaped grooves are arranged, and reinforcing bars for constructing a handrail are arranged at both ends of the U-shaped grooves. The construction structure of the exterior stairs according to claim 1, wherein 3. The step according to claim 1, wherein each step is composed of a plurality of U-shaped grooves, and a diagonal line passing through each step is arranged through a joint portion of the U-shaped groove. Structure of the exterior stairs.