Arched building and method of constructing arched building

Abstract

To provide a technique capable of realizing an arch-shaped building which is hardly deteriorated even when used for a long period of time and has a smaller work load during construction than before.SOLUTION: An arch-shaped building includes an inner arch structure formed in an arch shape by connecting, in a width direction, inner panels made of a metal plate curved in an arch shape in a longitudinal direction and formed in a wave shape in the width direction, an outer arch structure formed in an arch shape by connecting, in the width direction, outer panels made of a metal plate curved in an arch shape in the longitudinal direction and formed in a wave shape in the width direction, and a concrete structure filled in an inter-arch space between the inner arch structure and the outer arch structure and in close contact with an outer surface of the inner arch structure and an inner surface of the outer arch structure.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The technology disclosed herein relates to an arched building and a method for constructing an arched building. [Background technology]

[0002] Patent Document 1 discloses an arch-shaped structure formed by connecting a plurality of corrugated wall members, each made by bending corrugated steel material at a predetermined curvature in a direction perpendicular to the corrugation direction, in the corrugation direction, and connecting two wall sections each made of a plurality of connected wall members with a connecting member at the top part perpendicular to the corrugation direction. Various techniques for forming arch-shaped buildings by combining such corrugated steel materials have been known in the past. Furthermore, an improved technique for improving the robustness of buildings is known in which the periphery of an arch-shaped building formed by combining such corrugated steel materials is covered with concrete. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Utility Model Registration No. 3214540 Summary of the Invention [Problem to be solved by the invention]

[0004] However, when a structure in which the periphery of an arch-shaped building is covered with concrete is adopted, the concrete is exposed to the outside, which poses a problem that the concrete is prone to deterioration over long periods of use due to factors such as acid rain. Also, when installing, formwork must be formed around the periphery of the arch-shaped building in order to pour the concrete, but forming formwork along the periphery of the arch-shaped curved building poses a significant workload.

[0005] This specification discloses a technology that can realize arch-shaped buildings that are resistant to deterioration even during long-term use and require less work during construction than conventional buildings. [Means for solving the problem]

[0006] The arch-shaped building disclosed in this specification comprises an inner arch structure formed in an arch shape by connecting, in the width direction, inner panels made of metal plate that are curved in an arch shape in the longitudinal direction and formed in a corrugated shape in the width direction; an outer arch structure that is arranged on the outside of the inner arch structure so as to cover the inner arch structure, and is formed in an arch shape by connecting, in the width direction, outer panels made of metal plate that are curved in an arch shape in the longitudinal direction and formed in a corrugated shape in the width direction; and a concrete structure that fills the inter-arch space between the inner arch structure and the outer arch structure and is in close contact with the outer surface of the inner arch structure and the inner surface of the outer arch structure.

[0007] Here, the concrete structure being "in close contact with the outer surface of the inner arch structure" includes the concrete structure being "in close contact with the outer surface of the inner arch structure via an insulating material layer, etc."

[0008] According to the above configuration, the inner and outer surfaces of the arch-shaped concrete structure are supported and fixed by the inner arch structure and the outer arch structure, respectively. The concrete structure is not exposed to the outside. This prevents concrete from deteriorating due to factors such as acid rain during long-term use. Furthermore, because the arch-shaped concrete structure is sandwiched between the inner and outer arch structures, it is more robust than conventional structures in which the periphery of an arch-shaped building is covered with concrete. Furthermore, the concrete structure can be formed by forming the inner and outer arch structures and then filling the inter-arch space between the inner and outer arch structures with ready-mixed concrete. In this case, the installation of formwork for pouring concrete can be omitted. The workload during construction can also be reduced compared to conventional structures.

[0009] The vehicle may further include a separator that connects the outer arch structure and the inner arch structure while maintaining the gap between them.

[0010] With this configuration, the separator maintains the gap between the outer arch structure and the inner arch structure, preventing the gap between the outer arch structure and the inner arch structure from varying. As a result, the arched building can be constructed more robustly.

[0011] The outer surface of the inner arch structure and the inner surface of the outer arch structure may be galvanized.

[0012] With this configuration, the zinc plating prevents corrosion of the outer surface of the inner arch structure and the inner surface of the outer arch structure that come into contact with the concrete structure, preventing deterioration of the inner arch structure and outer arch structure over long periods of use.

[0013] A layer of heat insulating material may further be provided between the outer surface of the inner arch structure and the concrete structure.

[0014] This construction allows the arched building to be insulated, keeping the interior cool in the summer and warm in the winter.

[0015] The distance between the outer surface of the inner arch structure and the inner surface of the outer arch structure may be between 50 mm and 200 mm.

[0016] With this configuration, the distance between the outer surface of the inner arch structure and the inner surface of the outer arch structure is within the range of 50 mm to 200 mm. Within this range, a concrete structure can be formed between the outer surface of the inner arch structure and the inner surface of the outer arch structure without using formwork. This also reduces the amount of concrete required.

[0017] The method for constructing an arch-shaped building disclosed in this specification comprises the steps of: forming an arch-shaped inner arch structure by connecting, in the width direction, inner panels made of metal plate that are curved in an arch shape in the longitudinal direction and formed in a corrugated shape in the width direction; forming, in the width direction, an arch-shaped outer arch structure that is arranged so as to cover the inner arch structure on the outside of the inner arch structure by connecting, in the width direction, outer panels made of metal plate that are curved in an arch shape in the longitudinal direction and formed in a corrugated shape in the width direction to the outside of the inner arch structure; filling the inter-arch space between the inner arch structure and the outer arch structure with ready-mixed concrete; and solidifying the ready-mixed concrete filled in the inter-arch space to form a concrete structure that is in close contact with the outer surface of the inner arch structure and the inner surface of the outer arch structure.

[0018] Here, the concrete structure being "in close contact with the outer surface of the inner arch structure" includes the concrete structure being "in close contact with the outer surface of the inner arch structure via an insulating material layer, etc."

[0019] According to the above construction method, a concrete structure can be formed by forming the inner arch structure and the outer arch structure and then filling the space between the arches with ready-mixed concrete. Therefore, the installation of formwork for pouring concrete can be omitted. This reduces the workload during construction compared to conventional methods. Furthermore, in an arch-shaped building completed using the above construction method, the inner and outer surfaces of the arch-shaped concrete structure are supported and fixed by the inner and outer arch structures, respectively. The concrete structure is not exposed to the outside. Therefore, deterioration of the concrete due to factors such as acid rain during long-term use is suppressed. Furthermore, because the arch-shaped concrete structure is sandwiched between the inner and outer arch structures, it is more robust than conventional structures in which the periphery of the arch-shaped building is covered with concrete. [Brief explanation of the drawings]

[0020] [Figure 1] 1 shows a perspective view of an arch-shaped building 1 according to an embodiment of the present invention. [Figure 2] An explanatory cross-sectional view of the end face of the arch-shaped building 1 in Figure 1 is shown. [Figure 3] 2 shows an explanatory cross-sectional view of the girder surface of the arch-shaped building 1 in FIG. 1. [Figure 4] FIG. 4 shows an enlarged cross-sectional view of a part of FIG. [Figure 5] An enlarged explanatory view of a concrete pouring hole 60 is shown. [Figure 6A] An explanatory diagram (1) of the construction method of the arch-shaped building 1 is shown. [Figure 6B] Another example of an explanatory diagram (1) of a construction method for an arch-shaped building 1 is shown. [Figure 7] An explanatory diagram (2) of the construction method of the arch-shaped building 1 is shown. [Figure 8] An explanatory diagram (3) of the construction method of the arch-shaped building 1 is shown. [Figure 9] An explanatory diagram (4) of the construction method of the arch-shaped building 1 is shown. [Figure 10] An explanatory diagram (5) of the construction method of the arch-shaped building 1 is shown. DETAILED DESCRIPTION OF THE INVENTION

[0021] (Example) The arch-shaped building 1 of this embodiment will be described with reference to Figures 1 to 5. As shown in Figures 1 to 3, the arch-shaped building 1 of this embodiment comprises a foundation 2 and a building main body 4 constructed on the foundation 2.

[0022] The foundation 2 is a foundation member made of concrete. The foundation 2 serves as the base of the building body 4 and the floor of the arch-shaped building 1. The top surface of the foundation 2 is flat and exposed above ground. Most of the foundation 2 is buried underground.

[0023] The building body 4 is constructed on a foundation 2. The building body 4 comprises an inner arch structure 10, an outer arch structure 30, a concrete structure 50, and gable walls 80 and 82.

[0024] The inner arch structure 10 is a structure made of metal plate formed in an arch shape (approximately semi-cylindrical shape). The inner arch structure 10 is formed in a wave shape in the longitudinal direction (the Y-axis direction in Figures 1 to 3). In other words, the inner arch structure 10 has a bellows shape that waves along the longitudinal direction (the Y-axis direction).

[0025] The inner arch structure 10 is formed by connecting multiple metal plate inner panels 12 in the width direction (see Figures 5, 6A, and 6B described below). The inner panels 12 are metal plate members that are curved in an arch shape (approximately semicircular arc shape) in the longitudinal direction and corrugated in the width direction (i.e., the longitudinal direction). One inner panel 12 may be formed from a single panel (see Figure 6A described below) or may be formed by connecting multiple panels in the longitudinal direction (see Figure 6B). Each inner panel 12 is fixed to the foundation 2 via a base connector (not shown) provided on the foundation 2. As shown in Figure 4, adjacent inner panels 12 in the width direction are connected and fixed to each other from the inner side of the arch by connecting bolts 14. The connecting bolts 14 are so-called rivet nuts (which may also be called blind nuts) and bolts. In other examples, other connecting devices may be used as the connecting bolts 14.

[0026] The outer surface 16 of the inner arch structure 10 is zinc plated. The zinc plating inhibits corrosion of the outer surface 16 of the inner arch structure 10 that comes into contact with the concrete structure 50. The inner surface 18 of the inner arch structure 10 may also be zinc plated. If the inner surface 18 of the inner arch structure 10 is also zinc plated, corrosion of the inner surface of the building body 4 can be inhibited.

[0027] An insulating layer 20 is formed on the outer surface 16 of the inner arch structure 10. In this embodiment, the insulating layer 20 is formed by applying insulating paint to the outer surface 16 of the inner arch structure 10. In other examples, the insulating layer 20 may be formed by placing other insulating materials (e.g., inorganic fiber insulating material, wood fiber insulating material, foam plastic insulating material) on the outer surface 16 of the inner arch structure 10. By providing the insulating layer 20, the arch-shaped building 1 can be insulated.

[0028] The outer arch structure 30 is disposed outside the inner arch structure 10 so as to cover the inner arch structure 10. The outer arch structure 30 has the same arch shape as the inner arch structure 10, but has a larger diameter than the inner arch structure 10. The outer arch structure 30 is formed by connecting multiple outer panels 32 made of metal plate in the width direction. The outer panels 32 are metal plate members that are curved in an arch shape (approximately semicircular arc) in the longitudinal direction and formed in a corrugated shape in the width direction. One outer panel 32 may be formed by a single panel, or may be formed by connecting multiple panels in the longitudinal direction. Each outer panel 32 is fixed to the foundation 2 via a base connector (not shown) provided on the foundation 2. As shown in FIG. 4, adjacent outer panels 32 in the width direction are connected and fixed to each other from the outer surface of the arch by connecting bolts 34. As with the connecting bolts 14 described above, so-called rivet nuts (which may also be called blind nuts) and bolts are used as the connecting bolts 34. In other examples, other connectors may be used as the connecting bolts 34 .

[0029] The inner surface 38 of the outer arch structure 30 is also zinc plated. The zinc plating inhibits corrosion of the inner surface 38 of the outer arch structure 30 which comes into contact with the concrete structure 50. The outer surface 36 of the outer arch structure 30 may also be zinc plated. If the outer surface 36 of the outer arch structure 30 is also zinc plated, the outer surface of the building body 4 will be less susceptible to corrosion even when exposed to rain, etc.

[0030] As shown in Figures 1, 3 and 5, a plurality of concrete pour holes 60 are provided at the top of the arch shape of the outer arch structure 30. Each concrete pour hole 60 is provided at the top of the arch shape of the outer panel 32. As shown in Figure 5, the concrete pour holes 60 penetrate the outer panel 32. A cylinder 62 is attached to the concrete pour holes 60. As will be explained in detail later, the concrete structure 50 is formed by pouring fresh concrete through the concrete pour holes 60 between the inner surface 38 of the outer arch structure 30 and the outer surface 16 of the inner arch structure 10 and allowing it to harden.

[0031] As shown in Figure 4, an inter-arch space 24 is formed between the inner arch structure 10 and the outer arch structure 30. As described below, the inter-arch space 24 is filled with a concrete structure 50. A separator 40 is provided between the inner arch structure 10 and the outer arch structure 30, connecting the two while maintaining the distance between them. The separator 40 is a bolt that passes through the inner arch structure 10 and the outer arch structure 30 and is secured by a nut on the inner surface 18 of the inner arch structure 10. The provision of the separator 40 maintains the distance between the inner arch structure 10 and the outer arch structure 30. In this embodiment, no formwork for pouring concrete is provided between the inner arch structure 10 and the outer arch structure 30. In other words, in this embodiment, no reinforcing bars for the formwork are provided between the inner arch structure 10 and the outer arch structure 30.

[0032] The distance between the outer surface 16 of the inner arch structure 10 and the inner surface 38 of the outer arch structure 30 is between 50 mm and 200 mm. If the distance is within this range, a concrete structure 50 can be formed between the outer surface 16 of the inner arch structure 10 and the inner surface 38 of the outer arch structure 30 without the need for formwork. The distance between the outer surface 16 of the inner arch structure 10 and the inner surface 38 of the outer arch structure 30 is preferably between 100 mm and 175 mm. In this embodiment, the distance between the outer surface 16 of the inner arch structure 10 and the inner surface 38 of the outer arch structure 30 varies depending on the location. In the example of Figure 4, the distance D1 between the upper end portions (peaks) and lower end portions (valleys) of the wave shapes of the inner arch structure 10 and the outer arch structure 30 is 175 mm, and the distance D2 between the intermediate portions (portions between the peaks and valleys) of the wave shapes of the inner arch structure 10 and the outer arch structure 30 is 100 mm.

[0033] In the example of Figure 4, the distance D3 between the upper end (peak) and lower end (valley) of the wave shape of the outer arch structure 30 is 225 mm. Although not shown, the distance between the upper end (peak) and lower end (valley) of the wave shape of the inner arch structure 10 is also 225 mm. Furthermore, the distance D4 between the upper end (peak) of the wave shape of the outer arch structure 30 and the lower end (valley) of the wave shape of the inner arch structure 10 is 400 mm. However, the numerical values ​​of the distances D1 to D4 in this embodiment are merely examples, and any other numerical values ​​may be used.

[0034] The concrete structure 50 is a concrete member filled in the inter-arch space 24. The concrete structure 50 is in close contact with the outer surface 16 of the inner arch structure 10 and the inner surface 38 of the outer arch structure 30. More specifically, the concrete structure 50 is in close contact with the outer surface 16 of the inner arch structure 10 via the insulation layer 20. The concrete structure 50 is formed by pouring ready-mixed concrete into the inter-arch space 24 through a concrete pouring hole 60 provided in the outer arch structure 30 and allowing it to harden. In this embodiment, the concrete structure 50 is also filled into a cylinder 62 provided in the concrete pouring hole 60. The concrete structure 50 does not contain any reinforcing steel formwork or the like.

[0035] The gable walls 80, 82 are walls that close the open areas of the arch-shaped inner arch structure 10, the concrete structure 50, and the outer arch structure 30. An entrance door is provided on at least one of the gable walls 80, 82. The gable walls 80, 82 are made of, for example, concrete.

[0036] The structure of the arch-shaped building 1 of this embodiment has been described above. In this embodiment, the inner and outer surfaces of the arch-shaped concrete structure 50 are supported and fixed by the inner arch structure 10 and the outer arch structure 30, respectively. The concrete structure 50 is not exposed to the outside. This prevents concrete deterioration due to factors such as acid rain during long-term use. Furthermore, because the arch-shaped concrete structure 50 is sandwiched between the inner arch structure 10 and the outer arch structure 30, it is more robust than conventional structures in which the periphery of an arch-shaped building is covered with concrete. As will be explained in detail later, the concrete structure 50 of this embodiment is formed by forming the inner arch structure 10 and the outer arch structure 30 and then filling the inter-arch space 24 with ready-mixed concrete. In this case, the installation of formwork for pouring concrete can be omitted. The workload during construction is also reduced compared to conventional structures.

[0037] The arch-shaped building 1 of this embodiment is equipped with a separator 40 that connects the outer arch structure 30 and the inner arch structure 10 while maintaining the gap between them. The separator 40 maintains the gap between the outer arch structure 30 and the inner arch structure 10. This prevents the gap between the outer arch structure 30 and the inner arch structure 10 from varying. As a result, the arch-shaped building 1 can be made more robust.

[0038] As mentioned above, in this embodiment, the outer surface 16 of the inner arch structure 10 and the inner surface 38 of the outer arch structure 30 are zinc plated. The zinc plating inhibits corrosion of the outer surface 16 of the inner arch structure 10 and the inner surface 38 of the outer arch structure 30, which come into contact with the concrete structure 50. This prevents deterioration of the inner arch structure 10 and the outer arch structure 30 over long periods of use.

[0039] As described above, in this embodiment, the heat insulating layer 20 is provided between the outer surface 16 of the inner arch structure 10 and the concrete structure 50. This allows the arch-shaped building 1 to be insulated. The interior of the building can be kept cool in the summer and warm in the winter.

[0040] As mentioned above, in this embodiment, the distance between the outer surface 16 of the inner arch structure 10 and the inner surface 38 of the outer arch structure 30 is between 50 mm and 200 mm. If the distance between the two is within this range, the concrete structure 50 can be formed between the outer surface 16 of the inner arch structure 10 and the inner surface 38 of the outer arch structure 30 without the need for formwork. Furthermore, the amount of concrete required for the concrete structure 50 can be reduced.

[0041] As described above, the arch-shaped building 1 of this embodiment has high robustness. The arch-shaped building 1 can adequately withstand natural disasters such as earthquakes and tsunamis. Taking advantage of its high robustness, the arch-shaped building 1 can be used not only as a residence but also as an evacuation shelter in the event of a natural disaster. Furthermore, the arch-shaped building 1 can adequately protect people and objects inside from intrusions and attacks by animals such as bears, suspicious individuals, etc. The arch-shaped building 1 can also be used as a building that can withstand environmental changes such as pests and deterioration of public safety.

[0042] Next, a method for constructing the arch-shaped building 1 of this embodiment will be described with reference to Figures 6A to 10. As shown in Figure 6A, multiple inner panels 12 are connected in the width direction (beam length direction) on a foundation 2. The inner panels 12 are metal plate members that are curved in an arch shape in the longitudinal direction and formed in a corrugated shape in the width direction. In the example of Figure 6A, one inner panel 12 is formed from a single panel. In another example, as shown in Figure 6B, one inner panel 12 may be formed by connecting multiple panels in the longitudinal direction. Each inner panel 12 is fixed to the foundation 2 via a base connector (not shown) provided on the foundation 2. Adjacent inner panels 12 in the width direction are connected and fixed to each other from the inner side of the arch by connecting bolts 14 (see Figure 4).

[0043] By connecting a plurality of inner panels 12 in this manner, an arch-shaped inner arch structure 10 is formed on the foundation 2 as shown in FIG.

[0044] 8, a heat insulating layer 20 is formed on the outer surface 16 of the inner arch structure 10. The heat insulating layer 20 is formed by applying a heat insulating paint to the outer surface 16 of the inner arch structure 10.

[0045] Next, as shown in FIG. 9, an outer arch structure 30 is formed outside the inner arch structure 10 so as to cover the inner arch structure 10. The method for forming the outer arch structure 30 is the same as that for the inner arch structure 10. That is, the outer arch structure 30 is formed by connecting multiple outer panels 32 made of metal plate in the width direction (girder direction). The outer panels 32 are metal plate members that are curved in an arch shape in the longitudinal direction and formed in a corrugated shape in the width direction. One outer panel 32 may be formed from a single panel, or may be formed by connecting multiple panels in the longitudinal direction. Each outer panel 32 is fixed to the foundation 2 via a base connector (not shown) provided on the foundation 2. As shown in FIG. 4, adjacent outer panels 32 in the width direction are connected and fixed from the outer surface of the arch by connecting bolts 34. Multiple concrete pouring holes 60 are provided at the top of the formed outer arch structure 30. When the outer arch structure 30 is formed, an inter-arch space 24 is formed between the outer surface 16 of the inner arch structure 10 and the inner surface 38 of the outer arch structure 30. A concrete pour hole 60 communicates with the inter-arch space 24.

[0046] Next, as shown in Figure 10, ready-mixed concrete 51 is poured into the inter-arch space 24 through the multiple concrete pouring holes 60, filling the inter-arch space 24 with the ready-mixed concrete 51. At this time, the inner surface 18 of the inner arch structure 10 may be fixed by a support material or a support column (not shown). The ready-mixed concrete 51 is also filled into the cylinder 62 (see Figure 5) attached to the concrete pouring holes 60.

[0047] The ready-mixed concrete 51 filled in the inter-arch space 24 is then solidified. As a result, a concrete structure 50 is formed that fills the inter-arch space 24 and is in close contact with the outer surface 16 of the inner arch structure 10 and the inner surface 38 of the outer arch structure 30.

[0048] Next, gable walls 80, 82 are formed to close the open areas of the arch-shaped inner arch structure 10, concrete structure 50, and outer arch structure 30. An entrance door is provided in at least one of the gable walls 80, 82. The gable walls 80, 82 are made of concrete, for example. Once the gable walls 80, 82 are formed, the building body 4 is completed on the foundation 2. This completes the arch-shaped building 1 of this embodiment shown in Figure 1.

[0049] The construction method for the arch-shaped building 1 of this embodiment has been described above. According to this construction method, the concrete structure 50 can be formed by forming the inner arch structure 10 and the outer arch structure 30 and then filling the inter-arch space 24 with ready-mixed concrete 51. This eliminates the need for formwork for concrete pouring. This reduces the workload during construction compared to conventional methods. Furthermore, in the arch-shaped building 1 completed using this construction method, the inner and outer surfaces of the arch-shaped concrete structure 50 are supported and fixed by the inner arch structure 10 and the outer arch structure 30, respectively. The concrete structure 50 is not exposed to the outside. This prevents concrete deterioration due to factors such as acid rain during long-term use. Furthermore, because the arch-shaped concrete structure 50 is sandwiched between the inner arch structure 10 and the outer arch structure 30, it is more robust than conventional structures in which the outer periphery of the arch-shaped building 1 is covered with concrete.

[0050] Although the embodiments have been described in detail above, these are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications and alterations of the specific examples exemplified above. For example, the following modifications may be adopted.

[0051] (Variation 1) The outer surface 16 of the inner arch structure 10 and the inner surface 38 of the outer arch structure 30 do not have to be zinc plated. In that case, the outer surface 16 of the inner arch structure 10 and the inner surface 38 of the outer arch structure 30 may be subjected to any corrosion-resistant treatment other than zinc plating.

[0052] (Variation 2) Depending on the construction environment, the insulation layer 20 between the outer surface 16 of the inner arch structure 10 and the concrete structure 50 may be omitted.

[0053] (Variation 3) Depending on the construction environment, the separator 40 connecting the outer arch structure 30 and the inner arch structure 10 may be omitted.

[0054] Furthermore, the technical elements described in this specification or drawings may exhibit technical utility alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. Furthermore, the technologies illustrated in this specification or drawings simultaneously achieve multiple objectives, and achieving one of those objectives alone has technical utility. [Explanation of symbols]

[0055] 1: Arched building 2: Basics 4: Building body 10: Inner arch structure 12: Inner panel 14: Connecting bolt 16: Outer surface of inner arch structure 18:Inner surface of inner arch structure 20: Insulation layer 24: Space between arches 30: Outer arch structure 32: Outer panel 34: Connecting bolt 36: Outer surface of outer arch structure 38: Inner surface of outer arch structure 40: Separator 50: Concrete structure 51: Ready-mix concrete 60: Concrete pouring hole 62: Cylinder 80, 82: Gable wall

Claims

1. an inner arch structure formed in an arch shape by connecting inner panels made of metal plates in the width direction, the inner panels being curved in an arch shape in the longitudinal direction and formed in a corrugated shape in the width direction; an outer arch structure disposed outside the inner arch structure so as to cover the inner arch structure, the outer arch structure being formed in an arch shape by connecting outer panels made of metal plates in the width direction, the outer panels being curved in an arch shape in the longitudinal direction and formed in a corrugated shape in the width direction; a concrete structure filled in the inter-arch space between the inner arch structure and the outer arch structure and in close contact with the outer surface of the inner arch structure and the inner surface of the outer arch structure; Arched building.

2. 2. The arched architectural structure according to claim 1, further comprising a separator that connects the outer arch structure and the inner arch structure while maintaining a gap between them.

3. 2. The arched building structure according to claim 1, wherein the outer surface of the inner arch structure and the inner surface of the outer arch structure are galvanized.

4. 2. The arch-shaped building according to claim 1, further comprising a layer of heat insulating material between the outer surface of the inner arch structure and the concrete structure.

5. 2. The arched building according to claim 1, wherein the distance between the outer surface of the inner arch structure and the inner surface of the outer arch structure is between 50 mm and 200 mm.

6. A process of forming an arch-shaped inner arch structure by connecting, in the width direction, inner panels made of metal plates that are curved in an arch shape in the longitudinal direction and formed in a corrugated shape in the width direction; a step of connecting an outer panel made of a metal plate, which is curved in an arch shape in the longitudinal direction and formed in a corrugated shape in the width direction, to the outside of the inner arch structure, thereby forming an arch-shaped outer arch structure that is arranged to cover the inner arch structure on the outside of the inner arch structure; a step of filling an inter-arch space between the inner arch structure and the outer arch structure with ready-mixed concrete; and solidifying the ready-mixed concrete filled in the inter-arch space to form a concrete structure that is in close contact with the outer surface of the inner arch structure and the inner surface of the outer arch structure. How to build arched buildings.

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