JP3125841B2 - Building structures - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an architectural structure, and more particularly to an architectural structure capable of constructing columns, beams, and inner and outer walls of the building.

[0002]

2. Description of the Related Art Buildings are not used for many years after construction, but are used for holding events for a relatively short period of time. There are buildings, such as tents and medical facilities, that are used for a predetermined period of time and then dismantled and brought back. When constructing these buildings, it is desirable to use building structures that are as light as possible, convenient for transportation, and can be manufactured at low manufacturing costs.

Conventionally, solid timber rods, concrete, and the like have been used as architectural structures capable of forming the inner and outer walls of the building, and these architectural structures are arranged side by side to form the inner and outer walls of the building. Was configured.

[0004]

However, the above-mentioned conventional building structures are all heavy, inconvenient to transport, require a great deal of labor and time to construct, and require rebuilding after dismantling. There was also a problem in terms of use.

[0005] The present invention has been made in view of the present situation of such a building structure as described above, and has as its object to be light in weight, can be manufactured at low manufacturing cost, and have various shapes of building. An object of the present invention is to provide an architectural structure capable of manufacturing inner and outer walls and the like in a simple process in a short time.

[0006]

In order to achieve the above object, an architectural structure according to the present invention is formed in a tubular shape by spirally winding a strip of paper and fixing a contact portion with an adhesive. And a peel strength of 13.0 kg / cm ² or more and a compressive strength of 250 kg / cm ² or more.

[0007]

The building structure according to the present invention is formed by winding a strip of paper in a spiral shape and fixing the contact portion with an adhesive to form a tubular body. The inner and outer walls of the building are manufactured by a simple process, and the peel strength is 13.0 kg / cm ² or more and the compressive strength is 25
It is 0 kg / cm ² or more, and the inner and outer walls of the building are manufactured with sufficient strength by a simple process using this building structure.

[0008]

An embodiment of the present invention will be described below with reference to FIG.

FIG. 1 is an explanatory diagram showing the configuration of this embodiment.

In this embodiment, as shown in FIG. 1, the rice evaluation is 521 g / m ² , the tightness is 0.72 g / cm ² , and the thickness is 0.7
mm of raw paper 2 mm is wound around 22 layers, the contacting part is adhered with polyvinyl alcohol resin adhesive, laminated into a cylindrical shape, and the surface is waterproofed with paraffin. Thus, a paper tube 1 as an architectural structure is formed. Here, the tension is represented by (A / S) / d, where S is the area of the raw material paper, A is the mass, and d is the thickness, and is a value obtained by dividing the mass per unit area by the thickness d. is there.

In this embodiment having such a structure, the compressive strength is at least 250 kg / cm ² and the peel strength is 13.0 kg / c.
m ² or more of is obtained.

Using the paper tube 1 according to the present embodiment, the inventor can assemble a tent house having a column portion with a height of 4 m, and can carry out daily life inside under normal environmental conditions. Make sure that In this case, 48 paper tubes 1 having an outer diameter of 33 cm, a thickness of 15 mm, and a length of 4 m, which are waterproofed with paraffin, are inserted into a PC base, arranged in a circle, the upper ends are integrated by wooden compression, and the roof of the tent is closed. It was erected to form a tent house.

Further, the inventor uses the paper tube 1 according to the present embodiment to assemble a venue hall for an event, and to provide the venue hall for continuous use for six months without any trouble. Was completed. In this case, the roof of the hall is formed by a space frame supported by steel frames, and the inner and outer walls underneath are 305 paper tubes 1 with an outer diameter of 53 cm, a thickness of 15 mm, and a length of 8 m, and a toilet booth. Used are 18 paper tubes 1 having an outer diameter of 123 cm and a length of 8 m. At the foot of these paper tubes 1, a cross-shaped wooden rib anchored to the foundation was inserted, and the upper end was stopped by covering a bolt made of laminated structural plywood on a bolt protruding from the wooden rib. Kasagi is fixed to the gloves of the space frame about every 2 m further to form the entire wall.

In the construction of the building using the paper tube 1 of the embodiment, the paper tube 1 itself is finished without finishing.
Further, the paper tube 1 having a length of 8 m can be used as a constituent member of the inner and outer wall portions without a base.
Compared to a solid wood bar or a concrete bar that is conventionally used, the weight is 30 kg, which is much lighter, convenient for transportation, and enables efficient construction of a building in a short time.

In the illustrated embodiment, an example of a cylindrical paper tube is shown, but a polygonal cylindrical paper tube may be used.

Next, a strength test performed on the present embodiment will be described. (1) Compression test As shown in Table 1, two specimens for the compression test were a paper tube having an outer diameter of approximately 150 mm and an inner diameter of approximately 125 mm, and a paper tube having an outer diameter of approximately 100 mm and an inner diameter of approximately 75 mm. Different types of paper tubes were used. The number of test specimens was five each, and a total of four paper gauges were attached at the center in the direction of the material axis and in the direction orthogonal thereto, and the Young's modulus and Poisson's ratio were determined.

[0017]

[Table 1]

In the compression test, a ball seat is placed on a lower bed, a specimen is set on a plate, a plate is also placed on the upper end of the specimen, and a compression test is performed at a load speed of ^{2 to 4} kg / cm ² / min. Was done. FIG. 2 shows an example of measured data in the load test.

Table 2 shows the data of each specimen and the average data obtained for each size specimen in the compression test.

[0020]

[Table 2] (2) Bending test As shown in Table 3, the specimen for bending test had a material length of 2
m, five paper tubes having an outer diameter of 150 mm and an inner diameter of 125 mm were used.

[0021]

[Table 3]

In the bending test, a wooden beam is placed on the lower bed of the testing machine, and both ends of the specimen are supported thereon, and the pressing plate is also made of the same wooden device. A bending test was performed by intensively applying pressure at a span of 185 cm and a load speed of 7 kg / cm ² / min. The displacement was measured at the lower bed and the pressure plate position, and at the fulcrum and the floor position, and the value obtained by subtracting the latter from the former was taken as the central displacement.

According to this bending test, wrinkles are observed along the winding angle of the elongated strip 2 at the upper end subjected to compression by bending.

FIG. 3 shows an example of the load-displacement characteristics of the specimen obtained in the bending test, and shows that the displacement increases linearly until the maximum proof stress is reached.

Table 4 shows the strength and Young's modulus data of each specimen obtained in the bending test. The average strength obtained is 145 kg / cm ² , which is 1.65 times the compressive strength of a paper tube having an outer diameter of 150 mm, and the Young's modulus is 1.67 × 10 ⁴ kg / cm ^2. It is about 7% lower than the value obtained, but this is due to the penetration at the pressure point.

[0026]

[Table 4] (3) Creep test The creep test was performed on five paper tubes 1 each having a material length of 400 mm, an outer diameter of 100 mm, and an inner diameter of 75 mm. A plate having a thickness of 6 mm is set at both ends of the paper tube 1, a bolt is passed through a hole provided in the center of the plate, and tightened with a torque wrench until a predetermined torque value is obtained. The amount of displacement of the paper tube 1 was read by attaching an electric dial gauge to the square bar and placing it between the plates. This measurement is almost 1
At weekly intervals, the measurement was performed after tightening to a predetermined torque value before measurement.

FIG. 4 shows the relationship between the age and the amount of displacement obtained in the creep test, and FIG. 5 shows the relationship between the age and the room temperature and humidity corresponding to FIG.

As shown in FIG. 4, the displacement is almost constant up to about 100 days of age, and the displacement is 0.337 mm on average, but it rapidly increases after that and reaches 1.03 mm on 147 days. Further, as is clear from comparison with FIG. 5, the humidity affects the displacement amount, and the displacement amount tends to increase as the humidity decreases.

FIG. 6 is a characteristic diagram showing the relationship between the humidity and the displacement, and clearly shows that the displacement due to creep is reduced at low humidity.

As described above, the paper tube of the present embodiment can be manufactured at a low manufacturing cost by a simple process, is lightweight and convenient for transportation, and can be used as it is without using a base material and various wall materials. Can be formed in a short time, and the paper tube 1 can be reused repeatedly. The present embodiment enables a building to be constructed in a short time in a simple process at a low manufacturing cost, and enables the building constructed over the period to be used comfortably and efficiently.

[0031]

As described above, according to the present invention, the architectural structure is formed in a tubular shape by winding the belt-shaped paper spirally and fixing the contact portion with an adhesive. By using this architectural structure, the manufacturing cost can be reduced by a simple process, and the inner and outer walls of the building can be manufactured. Further, the peel strength is 13.0 kg / cm ² or more, and the compressive strength is higher. Since it is at least 250 kg / cm ² , the inner and outer walls of the building can be manufactured with sufficient strength.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a configuration of an embodiment of the present invention.

FIG. 2 is a characteristic diagram showing an example of a load-strain characteristic obtained in a compression test of the example.

FIG. 3 is a characteristic diagram showing an example of a load-displacement characteristic obtained in a bending test of the example.

FIG. 4 is a characteristic diagram showing a relationship between a material age and a displacement amount in the example.

FIG. 5 is a characteristic diagram showing a relationship between material age, temperature, and humidity in the example.

FIG. 6 is a characteristic diagram showing a relationship between humidity and displacement in the example.

[Explanation of symbols]

 1 paper core 2 band paper

Claims (1)

(57) [Claims] 1. A belt-shaped paper is spirally wound, a contact portion is fixed with an adhesive to form a cylindrical body, and a peel strength of 13.0 kg / cm ² or more and a compressive strength of 250 kg / cm ^2.
An architectural structure having a size of at least ² cm ² .