JP2010031486A - Method of constructing ice dome - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure in which a large number of people can simultaneously enjoy various types of events while simultaneously sharing the coldness of midwinter in an arctic region without being affected by weather. <P>SOLUTION: The skeletons of the walls and ceiling of the structure having a dome ceiling are formed using pipes 11. Water permeable clothes 14 are stretched and fixed onto the skeletons. Water W is sprayed over the clothes, and penetrated to the rear surface of the clothes. The water on the front and rear surfaces of the clothes is iced at the outdoor air temperature (claim 1). When a large dome is constructed, the structure may be formed in a geodesic dome having excellent structural strength (claim 2). <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a dome-type event venue using a pipe material, and more particularly, to an ice dome construction method in which the appearance and interior of an event venue appear to be constructed with ice.

  In cold regions such as Hokkaido, various events are tried to enjoy the cold weather during the severe winter season. In particular, many tourists from temperate countries and regions want to experience the cold of the cold winter season.

For this reason, hotels, etc. are implementing various experiential plans, such as making a kamakura with snow to taste the emotions and holding outdoor concerts in the severe winter season.
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  The problem is that it was difficult to create an event venue where many people could enjoy sharing the cold at the same time in the cold winter.

  Takakura made of snow is fun but small, so it is difficult for many people to listen to music, eat, drink and dance together. Also, outdoor concerts in the severe winter season are good in that everyone can share the cold and enjoy it, but it is difficult to hold in bad weather like a snowstorm, so it is difficult to schedule, so event organizers and As a promoter, it was a big hindrance to sales.

  Therefore, the present invention is to provide a structure in which a large number of people can enjoy various events while sharing the coldness of the cold region in a cold region without being influenced by the weather.

  In order to achieve the above-mentioned object and to solve the problems, the method for constructing an ice dome according to the present invention uses a pipe material to create a wall and ceiling skeleton of a structure in which the ceiling forms a dome shape. Spread and fix a permeable fabric, sprinkle water on this fabric, infiltrate the back of the fabric, and with the outside temperature (using the outside temperature in the cold winter) Freeze water on the front and back.

  Since the ice dome according to the present invention allows water to permeate into the fabric and freezes the water on the front and back, the pipe material and the fabric inside the ice cannot be seen from the outside. Users (audiences) can enjoy the event while tasting the atmosphere of a special space unique to the severe winter season, where the entire venue is made of ice both inside and outside.

  When a large dome is constructed, the structure may be a geodesic dome having excellent structural strength (claim 2).

  According to the construction method of the ice dome according to the present invention, it is possible to inexpensively make a structure that allows various people to enjoy various events while sharing the cold in the severe winter season in a cold region without being influenced by the weather. I can do it.

  There is no work difficulty to spread the fabric on the assembled pipe material to construct a dome-shaped event venue and spray water on the fabric, so the construction period can be shortened and the construction cost can be kept cheap I can do it. In cold regions like Hokkaido, outside temperatures are always below freezing during the cold winter season, so water can freeze in a short period of time when watering. Because frozen water has a slow melting rate, it maintains its state even in the daytime when the temperature is exceptionally positive in Celsius.

  1 and 2 show an embodiment of an ice dome construction method according to the present invention. This ice dome uses a geodesic dome in which a large number of equilateral triangles are combined using the pipe material 11. For example, the geodesic dome is formed by using a icosahedron to form a substantially hemispherical structure, and by combining a number of equilateral triangular truss structures to create a dome outline, The fabric 14 is extended. 17 and 18 are gate openings for people and luggage to enter and exit.

  The pipe material 11 is, for example, a cylindrical or prismatic one using a metal such as iron or aluminum or a resin having cold resistance. For example, as shown in FIG. 3, the pipe members 11 are connected to each other by providing bolt holes 16 in the flat flange 12 provided at the end of the pipe member 11, overlapping the flanges 12, and forming the bolt holes 16. A bolt (not shown) is inserted and fixed through a nut.

  In general, since the size and shape design drawing of the structure is determined, if the pipe member 11 having a predetermined curvature and length is connected to the curved portion, the outline of the structure can be assembled in a short time. I can do it.

  The fabric 14 spread from above the pipe material 11 may be a thin sheet having water permeability and flexibility. For example, a sheet using natural fibers such as linen or cotton may be used, or a resin sheet having a uniform hydrophilic property on the entire fabric may be used.

  When the fabric 14 is stretched, for example, a fabric 14 formed into an equilateral triangle is prepared using the features of a geodesic structure using a number of equilateral triangles, and at least three vertices of each fabric 14 are used as the pipe material 11. Lock.

  Next, as shown in FIG. 4, water W is sprinkled from above the fabric 14. In order to sprinkle the water W on the large dome having a large surface area, it is desirable to use the watering pump 15. In addition, it is desirable to provide a shower water spray nozzle 19 at the tip of the hose H connected to the water spray pump 15 so that the water W can be sprayed uniformly over the entire fabric 14.

  It is desirable that the water W is sprayed when the outside air temperature is minus 0 ° C. or less, and the water W adhering to the fabric 14 is immediately frozen. Since the surface area of the dome is large, if the water sprinkling point is moved while water W is applied to the fabric 14, the water W adhering to the fabric 14 freezes one after another without taking a long time. In FIG. 5, the ice formed on the surface of the fabric 14 is indicated by C.

  Even after the water W sprinkled on the fabric 14 freezes, if the water W is sprinkled repeatedly, the thickness of the ice C on the surface side of the fabric 14 increases. An ice layer is also formed on the back surface of the fabric 14, but the thickness of the ice layer on the back surface does not grow even when the water W is sprinkled. This is because the ice layer formed on the back surface of the fabric 14 prevents the water W from entering.

  By repeatedly spraying the water W, a thick ice C layer is formed around the base end of the dome. However, since the water W is not sprinkled around the gate openings 17 and 18 and the fabric 14 is not present, the ice C does not exist.

  According to this method, a geodesic dome is made using the pipe material 11 and the water W is simply sprinkled from the fabric 14 stretched, so that a large ice dome can be made at a low construction cost. . The construction period is short and withdrawal is easy. Since the geodesic dome is a truss structure as a whole, it can withstand the weight of ice C and can guarantee safety.

  The ice dome according to the present invention is not limited to the above embodiment. For example, the ice dome according to the present invention is not limited to the geodesic dome, and may have a non-geodesic structure as shown in FIG.

  The fabric 14 spread on the dome is not limited to a triangular one. In order to increase work efficiency, a large area may be used. For example, the area of the dome skeleton presenting a hemispherical shape is grouped into three parts, a zenith part, an intermediate part, and a base part, and a fabric 14 molded according to each corresponding part is stretched. When the size of the dome increases, the number and shape of the fabrics 14 may be adjusted, and the size of the fabrics 14 may be adjusted, for example, 4 divisions, 5 divisions, 6 divisions.

  When the fabric 14 is fixed to the pipe material 11, in the case of a dome having a geodesic structure, for example, the three apexes can be bolted, but not limited to this. , And may be fixed by their engagement. Since the front and back of the fabric 14 are covered with ice, even if the fabric 14 is only lightly locked, a situation such as the fabric 14 being blown off by the wind does not occur.

  Although it has been described that the pipe members 11 that make up the structure of the structure use the bolt holes provided in the flange, the pipe members 11 can be connected to each other without providing the flange. This is because, for example, a joint that covers the intersection of the pipe material 11 may be used and a fitting such as a bolt may be inserted into the joint and the pipe material 11.

  If an image is projected from the inside of the dome onto the inner wall of the ice dome (the back side of the fabric 14), an all-around fantasy image expression can be performed.

It is a figure which illustrates the dome frame | skeleton of the geodesic structure which concerns on embodiment. It is a figure which illustrates the step which spreads cloth on the dome outline of FIG. It is a figure which illustrates the connection structure of the pipe material which concerns on embodiment. It is a figure which illustrates the step which sprinkles water on the fabric of FIG. FIG. 5 is a diagram illustrating a stage in which ice is stretched on the fabric surface of FIG. 4. It is a figure which illustrates other dome outlines concerning an embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Pipe material 12 Flange 14 Cloth 15 Water sprinkling pump 16 Bolt hole 17, 18 Gate opening 19 Shower sprinkling nozzle C Ice H Hose W Water

Claims (2)

Make the walls of the structure and ceiling skeleton with a ceiling dome shape using pipe material,
A permeable fabric is spread and fixed on this skeleton,
Sprinkle water on this fabric,
A method for constructing an ice dome, characterized in that water penetrates to the back of the fabric and the water on the front and back of the fabric is frozen at an outside temperature.   2. The ice dome construction method according to claim 1, wherein the structure having a dome-shaped ceiling is a geodesic dome.

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