JP4087264B2 - How to install a dome roof - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for constructing a dome-shaped roof that can be suitably used for a relatively small dome-shaped roof, such as a water supply field and an agricultural water tank roof.
[0002]
[Prior art]
Conventionally, a dome-shaped roof has been built on structures such as tanks and stadiums by framing skeletons such as building materials and beams at the opening of the dome, and then stretching the frame material to the dome. A method of forming a mold roof or a dome-shaped roof is assembled in advance at a location different from the structure to be installed, and the dome-shaped roof is transported onto the structure by, for example, lifting it up, near the upper edge of the structure For example, a method of forming a dome-shaped roof by connecting the edges of the dome-shaped roof has been used.
[0003]
Also, for the purpose of safety and ease of construction, for example, a lifting column is established at the center of the tank bottom, and a mesh dome frame is assembled on the tank bottom around the lifting column. Is lifted to a predetermined height by the lifting column, the periphery of the top of the cylindrical tank side wall is connected to the mesh dome frame with a connecting material, the mesh dome frame is supported by the cylindrical tank side wall, and the lifting column is disassembled. A method of assembling the connecting member at the center after the removal is disclosed. (For example, Japanese Patent Publication No. 45-1779)
[0004]
[Patent Document 1]
Japanese Examined Patent Publication No. 45-1779
[Problems to be solved by the invention]
However, in the method in which the face material is stretched on the frame, the frame is erected by assembling the support work where necessary, and the support work dismantled after the face material is stretched is removed from a small vent or inspection port. Therefore, the labor related to the support work in the erection is complicated. In addition, the time required for erection on the structure becomes long, and the structure cannot be used during that time. Further, work at a high place is necessary and there is a problem in safety.
[0006]
In addition, in the method of assembling the entire dome-shaped roof in advance, a very large device is required to lift the dome-shaped roof, and the dome-shaped roof itself needs to be strong enough to withstand the lifting. Further, in order to assemble a dome-shaped roof, a site having an area equal to or larger than that of the dome-shaped roof is required in the surrounding area, and this method cannot be applied to a place where the site cannot be obtained.
[0007]
Moreover, in the method as described in Patent Document 1, a separate site is not necessary, but it is necessary to assemble a mesh dome frame at the bottom of the cylindrical tank, and the building cannot be used for a period until the mesh dome frame is completed. Moreover, it was necessary to carry out from the narrow doorway to dismantle and remove the lifting column.
[0008]
The present invention has been made in view of the above-described problems, and the labor involved in support work in erection is simple, and a dome-shaped roof that can be safely, easily and quickly formed on a structure. It is intended to provide a construction method.
[0009]
[Means for Solving the Problems]
In order to solve the above problems, the present invention has the following configuration.
That is, the dome-shaped roof erection method according to the present invention is a method for constructing a dome-shaped roof that covers an opening in the upper part of a cylindrical structure that has been constructed in advance. A method for constructing a dome-shaped roof that covers an opening, in which halves divided into 5 to 8 radii from the center of the dome-shaped roof are formed in advance, and supported by a support provided directly under the center of the dome-shaped roof. Then, the halves are erected in a dome shape, and the support work is dismantled with the space for one or two split bodies remaining, and the dismantled support work is separated into the space for the one or two split bodies. Is a dome-shaped roof erection method in which one or two halves are erected from the outside and then erected in the space. It consists of, each block of the triangle, the angle member Are framework are those triangles connected vertices to each side of the three sides of the triangle forming the periphery is formed inside the triangle, and entered into a connection plate to the top portion of the block body of each triangle The block body is sequentially assembled, and a face material is stretched in advance on the outside of the angle material , and 1-2 bodies for removing the dismantled support work to the outside It is characterized in that each of the split bodies constructed in a dome shape is fixed by the connection plate, leaving a space for split bodies.
[0010]
It is possible to form a dome-shaped roof in advance by simply laying the dome-shaped roof into 5-8 bodies and then laying these bodies sequentially in a dome shape. It is. In addition, the dismantled support work can be removed from the space of one or two halves that are much larger than the vents and inspection openings, and the dismantling work of the support work can be performed efficiently.
[0011]
When the support body is removed leaving the space for one or two bodies, the already installed body parts are fixed, the stress is concentrated in the central part, and the shape is maintained. If there are fewer than five bodies, the installed part will be easily deformed when leaving one or two spaces, and if more than eight, the installation will be complicated and the space for one or two bodies will be narrow. Thus, the advantage of using the method according to the present invention is reduced.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be specifically described below with reference to the drawings.
FIG. 1 shows an example of a water supply or agricultural water tank having a dome-shaped roof to which the present invention is applied. A) is a perspective view, and B) is an AA cross-sectional view thereof. 1), the water tank is formed by providing a dome-shaped roof 10 in the opening of the upper part of the cylindrical structure 20, and the stairs for ascending on the dome-shaped roof 10 at the side. 30 is installed.
[0013]
A) A-A sectional view of A) is shown in (b). The water W is stored inside the cylindrical structure 20, and the dome-shaped roof 10 is provided in the upper opening to prevent dust and animals. Prevent entry. The clean water W is generally sterilized by chlorine, and when the chlorine fills the tank, the dome-shaped roof 10 and the cylindrical structure 20 may be adversely affected.
[0014]
The cylindrical structure 20 is made of a material that does not cause corrosion, such as concrete, so that it is less likely to be corroded by chlorine over a long period of time. However, the dome-shaped roof 10 has a weight of the roof itself and snow accumulation. It is necessary to make it a structure that can withstand the load due to, etc., and the strength is enhanced by making it a shell structure, but in order to secure even higher strength, it is necessary to use a steel frame for the framework or reinforced concrete Comes out. Since such a frame and rebar are corroded by chlorine for a relatively short time, even the danger of collapse occurs, the dome-shaped roof 10 needs to be updated according to the degree of corrosion, and its simple and quick installation A method has been sought.
[0015]
Furthermore, in the conventional method, after the completion of the dome roof construction, it is necessary to perform the caulking process over all the gaps for waterproofing. Such a caulking is generally easily deteriorated, and is faster than the renewal of the dome roof as described above. In some cases, repairs may be necessary, and this is insufficient as a method for shielding foreign substances and rainwater from the outside.
[0016]
2 to 5 show an embodiment according to the present invention, and FIG. 2 is a top view showing a divided body. Assuming that the regular icosahedron is a basic shape and one vertex of the icosahedron is regarded as a dome-shaped roof, when viewed from the top, five regular triangles are arranged in contact with the vertex. Each equilateral triangle is divided into five divisions 1 as shown in the figure, and the division 1 is further subdivided to form an odd number of rows from the apexes to form block bodies 11, thereby forming a dome-like shape. It can be approximated to a curved surface. By using an icosahedron as the basic shape, the five halves have exactly the same shape, and it is not necessary to design or manufacture the members for each of the halves 1, and the members can be used in common so that they can be shared. Time and effort can be reduced.
[0017]
FIG. 3 is a schematic diagram showing the formation of the split body 1. First, as shown in FIG. As shown in (b), the connection plate 14 is fastened with bolts, screws, rivets or the like to the apexes of the triangular block bodies 11 that are arranged in a staggered manner in the upper and lower sides, and a face material is provided outside the angle member 12. The block body 11 is formed by stretching 13. The block body 11 is sequentially assembled and formed into a shape as shown in FIG.
[0018]
The material for forming the angle member 12 is not particularly limited, but it is preferably formed using a metal that is relatively light and has high strength, such as an extrusion mold member such as steel, stainless steel, and aluminum, H Although a mold material, a tubular body, or the like may be used, it is preferably used in a place where there is a high risk of being corroded by chlorine as described above, and is preferably formed using aluminum which is resistant to corrosion and can reduce the weight of the roof itself.
[0019]
Further, the face material 13 is not particularly limited to the material used for the formation, and a resin plate, a metal plate or the like may be used. However, it is preferable to use aluminum which is resistant to corrosion, and in particular, an aluminum foil is pasted. The attached metal resin laminated composite plate can be suitably used. The metal-resin laminated composite plate is lightweight while having bending strength and bending elastic modulus close to those of metal, and the dome-shaped roof 10 can be made lightweight without significantly reducing the strength of the face material. It is possible to reduce the load applied to the connecting portion with the shaped structure 20.
[0020]
With this structure, in addition to the above-described effects, the face material 13 can be stretched without gaps, so that foreign matter and rainwater can be prevented from entering the dome, eliminating the need for caulking and repairs due to deterioration thereof, and maintaining it. The labor and cost involved can be greatly reduced.
[0021]
2 and 3 is erected as shown in FIG. A support structure 2 is provided inside the cylindrical structure 20, and the split body 1 is installed while being supported by the support structure 2. First, the first body 1a is lifted by a crane K or the like, conveyed above the cylindrical structure 20, and supported by the support 2 while being bolted near the upper edge of the cylindrical structure 20 at the connection portion 3.・ It is firmly fixed by nuts, connecting members, etc. Next, the adjacent body 1b is similarly fixed to the connection part 3, and then the bodies 1a and 1b are fastened to the connection plate 14 of the adjacent body 1a or 1b with bolts, nuts, etc. They are firmly fixed to each other.
[0022]
Further, as shown in the perspective view (a) of FIG. 5, the split body 1c and the split body 1d are fixed to the connecting portion 3 and the adjacent split body 1 in the same manner in order, and one of the five split bodies. It will be left erected. In this state, the support 2 is dismantled and removed from the remaining space S to the outside. As shown in the top view (b), each of the split bodies 1a to 1d is fixed, and the split bodies 1a to 1d leave the space S and are held independently even if the support by the support 2 is lost. The body 1e is installed by being fixed to the top part 21 and the connection part 3 of the support 2 without dropping or deforming the divided parts 1a to 1d, and the installation of the dome-shaped roof 10 is completed.
[0023]
By laying the dome-shaped roof 10 by such a method, the split body 1 is radially divided from the center. Therefore, the support work 2 can be installed if one support work 2 is provided near the center. In addition, since the dome-shaped roof 10 is divided into the split bodies 1, the space required for pre-assembly is much smaller than the pre-assembly of the entire dome-type roof 10, and is less subject to space restrictions. Become. Furthermore, by assembling the split body 1 in advance, the work to be performed on the cylindrical structure 20 can be reduced, and the dome-shaped roof 10 can be formed quickly and easily while being excellent in safety.
[0024]
【The invention's effect】
It is possible to form a dome-shaped roof in advance by simply laying the dome-shaped roof into 5-8 bodies and then laying these bodies sequentially in a dome shape. It is. In addition, the dismantled support work can be removed from the space of one or two halves that are much larger than the vents and inspection openings, and the dismantling work of the support work can be performed efficiently.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram showing an example of a water supply field having a dome-shaped roof or an agricultural water tank to which the present invention is applied.
FIG. 2 is a top view showing a divided state of an embodiment according to the present invention.
FIG. 3 is an explanatory diagram showing formation of a split body according to an embodiment of the present invention.
FIG. 4 is an explanatory diagram showing an embodiment according to the present invention.
FIG. 5 is an explanatory diagram showing an embodiment according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Split body 11 Block body 12 Angle material 13 Face material 14 Connection plate 2 Supporting work 3 Connection part 10 Dome-shaped roof 20 Cylindrical structure

Claims (1)

A method for constructing a dome-shaped roof that covers an opening in the upper part of a cylindrical structure that has been constructed in advance, and each of the dome-shaped roofs is divided into 5 to 8 radii from the center of the dome-shaped roof. While supporting by the support work provided directly under the center of the roof, the above-mentioned splits were constructed in a dome shape, the support work was dismantled with the space for one or two splits remaining, and the dismantled support work A dome-shaped roof erection method in which one to two bodies are removed from the space of the one or two bodies, and then one to two bodies are installed in the space. A plurality of triangular block bodies assembled together , each block body of the triangle being framed by an angle member, and a triangle having a vertex connected to each of the three sides of the triangle forming the periphery. are those formed in the interior, and it Signed a connection plate to the top portion of the block body of the triangle, go successively assembled block bodies are those and advance face material on the outside of the angle member is formed is stretched and disorganized A dome shape characterized in that each of the dome-like erections is fixed by the connection plate, leaving a space for one or two halves for removing the support work outside. How to build the roof.

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