Roof structure and construction method of roof structure

Abstract

To provide a roof structure and a construction method for a roof structure that can prevent the collapse of support columns due to wind, snow accumulation, etc., and the pushing of the roof structure by its own weight, while suppressing the size of the foundation structure. [Solution] The roof structure 1 comprises a support column 2 placed in an installation hole 11 formed in the ground 100, a beam 3 to which the support column 2 is connected and which supports the roof 4, a cylindrical body 20 embedded in the ground 100 and surrounding the support column 2, resistance plates 212 and 222 connected to the outer surface of the cylindrical body 20 and embedded in the ground 100 so that their planar portions face horizontal, and an internal filling material 15 filled in the installation hole 11 to fill the gap between the cylindrical body 20 and the support column 2. The resistance plates 212 and 222 are not placed on the side opposite to the side covered by the roof 4 in the beam direction B to which the beam 3 extends, but are arranged along the beam orthogonal direction C which is perpendicular to the beam direction B in a plan view.

Description

Technical Field

[0001] The present disclosure relates to a roof structure and a method for constructing the roof structure.

Background Art

[0002] Conventionally, in a roof structure, there is known a technique of filling a ground where a column supporting a roof is buried with a filling material such as concrete and curing the filling material to fix the column (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, when a force or load is applied to the roof by wind or snow accumulation, the beam may bend, and a force may be applied to the column in the direction of falling. Although it is conceivable to prevent the column from falling or being pushed in by its own weight by increasing the size of the foundation structure that supports the column, the roof structure is often installed near adjacent lands with different owners, and it is preferable that the size of the foundation structure is as small as possible.

[0005] The present disclosure has been made in view of such a situation, and an object thereof is to provide a roof structure and a method for constructing the roof structure that can prevent the column from falling due to wind, snow accumulation, etc. and being pushed in by its own weight while suppressing the size of the foundation structure.

Means for Solving the Problems

[0006] This disclosure relates to a roof structure comprising: a support column placed in an installation hole formed in the ground; a beam to which the support column is connected and which supports the roof; a cylindrical body embedded in the ground and surrounding the support column; a resistance plate connected to the outer surface of the cylindrical body and embedded in the ground such that its planar portion faces horizontally; and a filling material filled in the installation hole and filling the gap between the cylindrical body and the support column, wherein the resistance plate is not placed on the side opposite to the side covered by the roof in the beam direction in which the beam extends, and is placed along a beam orthogonal direction perpendicular to the beam direction in a plan view. [Brief explanation of the drawing]

[0007] [Figure 1] This is a perspective view of the roof structure of the first embodiment. [Figure 2] This is a side view of the roof structure of the first embodiment. [Figure 3] This is a front view of the roof structure of the first embodiment. [Figure 4] This is a schematic longitudinal cross-sectional view showing the foundation structure of the roof structure of the first embodiment as seen from the side. [Figure 5] This is a schematic longitudinal cross-sectional view showing the foundation structure of the roof structure of the first embodiment as seen from the front. [Figure 6] This is a schematic cross-sectional view showing the foundation structure of the roof structure of the first embodiment. [Figure 7] This is a perspective view of the cylindrical body of the first embodiment. [Figure 8] This is a perspective view showing the connection between the support column and the column extension member of the first embodiment. [Figure 9A] This is a schematic longitudinal cross-sectional view showing how a cylindrical body is driven into the ground. [Figure 9B] This is a schematic longitudinal cross-sectional view showing how an excavator forms a hole for installation. [Figure 9C] This is a schematic longitudinal cross-sectional view showing how the cylindrical body is driven into the ground after the installation hole has been formed. [Figure 9D] This is a schematic longitudinal cross-sectional view showing a cylindrical body buried to a greater depth in the ground. [Figure 10A]It is a longitudinal sectional view schematically showing a state where a support column is arranged with the cylinder body driven into a predetermined position. [Figure 10B] It is a longitudinal sectional view schematically showing a state where an internal filling material is filled after gravel is put in. [Figure 10C] It is a longitudinal sectional view schematically showing a state where a surface filling material is formed after the internal filling material is filled. [Figure 11A] It is a cross-sectional view of the foundation structure of the roof structure of the second embodiment. [Figure 11B] It is a perspective view of the cylinder body of the second embodiment. [Figure 12A] It is a cross-sectional view of the foundation structure of the roof structure of the third embodiment. [Figure 12B] It is a perspective view of the cylinder body of the third embodiment. [Figure 13] It is a cross-sectional view of the foundation structure of the roof structure of the fourth embodiment. [Figure 14] It is a perspective view of the roof structure of the fifth embodiment. [Figure 15] It is a front view of the roof structure of the fifth embodiment. [Embodiments for Carrying out the Invention]

[0008] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. In the description of the second embodiment and subsequent embodiments, components common to the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted as appropriate.

[0009] [First Embodiment] The roof structure 1 of the first embodiment shown in FIGS. to is, for example, a two-sided supported carport having a space for parking two four-wheel vehicles. The roof structure 1 of the first embodiment is installed near the adjacent land boundary line P that separates the site where the roof structure 1 is constructed and the adjacent land that is the land owned by others. The adjacent land boundary line P is shown by a chain-dotted virtual line in FIG. 1.

[0010] The roof structure 1 includes four columns 2, two beams 3, a roof 4 supported by the two beams 3, and four foundation structures 10 that support the respective columns 2.

[0011] The columns 2 are made of a metal such as an aluminum alloy, for example. The four columns 2 are arranged such that they are located at the vertices of a rectangle in plan view. Of the four columns 2, two are arranged side by side in the front-rear direction Y along the adjacent land boundary line P, and a drain pipe 5 for draining rainwater or the like is arranged on the front-side column 2 of the front side Y1. In the front-rear direction Y of the drawing surfaces of FIGS. 1 and 2, the front side is the front side Y1 and the rear side is the rear side Y2.

[0012] The beams 3 are connected to the columns 2. Both of the two beams 3 extend in the left-right direction X in the front view of FIG. 3 and are connected to the left and right columns 2. The roof 4 is supported by the two beams 3.

[0013] In the following description, the direction in which the beam 3 extends, and the longitudinal direction of the beam 3 is defined as the beam direction B. In FIG. 3, the beam direction B is the left-right direction X. In the left-right direction X of the drawing surface of FIG. 3, the left side is the left side X1 and the right side is the right side X2. In the foundation structure 10 on the left side X1 of the drawing surface of FIG. 3, the right side X2 is the roof side covered by the roof 4, and the left side X1 is the side opposite to the roof side. On the other hand, in the foundation structure 10 on the right side X2 of the drawing surface of FIG. 3, the roof side covered by the roof 4 is the left side X1, and the side opposite to the roof side is the right side X2. The roof side is the side where the roof 4 extends long when viewed from the column 2 and is the side where the ground below the roof 4 is covered, and can also be said to be the side in the direction in which the roof 4 extends when viewed from the column 2. And in the description of the foundation structure 10 located on the left side X1 and adjacent to the adjacent land boundary line P, in the beam direction B, when explaining, the roof side with respect to the adjacent land boundary line P is defined as the roof side P1 and the side opposite to the roof side P1 is defined as the adjacent land side P2. Also, the direction orthogonal to the beam direction B in plan view is described as the beam orthogonal direction C. One side of the beam orthogonal direction C is defined as one side C1 and the other side of the beam orthogonal direction C is defined as the other side C2. In FIG. 2, the beam orthogonal direction C is the front-rear direction Y.

[0014] Next, the foundation structure 10 adjacent to the property boundary line P will be described. The foundation structure 10 is an underground structure that supports the lower part of the support column 2. As shown in Figures 4 and 5, the foundation structure 10 of the roof structure 1 comprises an installation hole 11, a gravel layer 12, a cylindrical body 20, a column extension member 13, an anchor rod 14, an internal filling material 15, and a surface filling material 16.

[0015] The installation hole 11 is an excavated hole formed in the ground 100. The gravel layer 12 is a layer composed of gravel placed at the bottom of the installation hole 11.

[0016] The cylindrical body 20 is configured to surround the entire outer surface of the support column 2. In this embodiment, the cylindrical body 20 is located above the installation hole 11 when the support column 2 is inserted inside, and the lower part of the support column 2 is located below the cylindrical body 20. The cylindrical body 20 is made of metal, such as steel.

[0017] The opening area of ​​the cylindrical body 20 is preferably large enough to allow excavation work to be carried out by the rotary excavation section 103 (see Figure 9B) of the excavator 102, which will be described later. For example, the opening area of ​​the cylindrical body 20 in a plan view is preferably in the range of 110 mm or more.

[0018] As shown in Figures 6 and 7, the cylindrical body 20 is constructed by assembling a first divided body 21 and a second divided body 22. In this embodiment, the first divided body 21 and the second divided body 22 are identical in shape when one of them is rotated 180°.

[0019] The first divided body 21 comprises a main body portion 210, an insertion piece 211, a resistance plate 212, and a mating portion 213.

[0020] The main body portion 210 is formed in a concave shape that encloses half of the outer circumference of the support column 2 in a plan view. Hereinafter, the surface of the main body portion 210 that faces the support column 2 in the beam direction B will be referred to as the first planar portion 215, the surface adjacent to one side C1 (right side of the paper) of the first planar portion 215 in the beam perpendicular direction C will be referred to as the second planar portion 216, and the surface adjacent to the other side C2 (left side of the paper) of the first planar portion 215 in the beam perpendicular direction C will be referred to as the third planar portion 217.

[0021] When the cylindrical body 20 is installed in the installation hole 11, the first planar portion 215 of the main body 210 is aligned with the beam orthogonal direction C in a plan view. The second planar portion 216 is inclined toward one side C1 of the beam orthogonal direction C as it moves away from the first planar portion 215 in the beam direction B. The third planar portion 217 is inclined toward the other side C2 of the beam orthogonal direction C as it moves away from the first planar portion 215 in the beam direction B. In this way, the main body 210 has a shape in which its sides (first planar portion 215 and second planar portion 216) are inclined such that, in a plan view, the concave open side is wider than the closed side.

[0022] The insertion piece 211 is positioned at the end of the second planar portion 216 of the main body 210 and is formed to bend relative to the second planar portion 216 of the main body 210. When the cylindrical body 20 is installed in the installation hole 11, the insertion piece 211 is formed to extend on one side C1 in the direction C perpendicular to the beam. Furthermore, the insertion piece 211 is formed without interruption in the vertical direction of the main body 210.

[0023] The resistance plate 212 is positioned at the end of the third planar portion 217 of the main body 210 and is formed to bend relative to the third planar portion 217 of the main body 210. When the cylindrical body 20 is installed in the installation hole 11, the resistance plate 212 is formed to extend to the other side C2 in the direction perpendicular to the beam C. The resistance plate 212 is formed in a plate shape with a length in the direction perpendicular to the beam C that is longer than that of the insertion piece 211. In addition, the resistance plate 212 is also formed without interruption in the vertical direction of the main body 210.

[0024] The mating portion 213 is located near the end of the third planar portion 217 of the main body portion 210 and is positioned on the planar portion P2 on the adjacent side of the resistance plate 212. The mating portion 213 is a mating hole into which the insertion piece 221 of the second divided body 22, which will be described later, is inserted.

[0025] Next, the second divided body 22 will be described. The second divided body 22 comprises a main body portion 220, an insertion piece 221, a resistance plate 222, and a mating portion 223.

[0026] The main body portion 220 is formed in a concave shape that encloses half of the outer circumference of the support column 2 in a plan view. Hereinafter, the surface of the main body portion 220 that faces the support column 2 in the beam direction B will be referred to as the first planar portion 225, the surface adjacent to the other side C2 of the first planar portion 225 in the beam perpendicular direction C will be referred to as the second planar portion 226, and the surface adjacent to the one side C1 of the first planar portion 215 in the beam perpendicular direction C will be referred to as the third planar portion 227.

[0027] When the cylindrical body 20 is installed in the installation hole 11, the first planar portion 225 of the main body 220 is aligned with the beam perpendicular direction C in a plan view. The second planar portion 226 is inclined toward the other side C2 of the beam perpendicular direction C as it moves away from the first planar portion 225 in the beam direction B. The third planar portion 227 is inclined toward one side C1 of the beam perpendicular direction C as it moves away from the first planar portion 225 in the beam direction B. In this way, the main body 220 has a shape in which its sides (first planar portion 225 and second planar portion 226) are inclined such that, in a plan view, the concave open side is wider than the closed side.

[0028] The insertion piece 221 is positioned at the end of the second planar portion 226 of the main body 220 and is formed to bend relative to the second planar portion 226 of the main body 220. When the cylindrical body 20 is installed in the installation hole 11, the insertion piece 221 is formed to extend to the other side C2 in the direction perpendicular to the beam C. Furthermore, the insertion piece 221 is formed without interruption in the vertical direction of the main body 220.

[0029] The resistance plate 222 is positioned at the end of the third planar portion 227 of the main body 220 and is formed to bend relative to the third planar portion 227 of the main body 220. When the cylindrical body 20 is installed in the installation hole 11, the resistance plate 222 is formed to extend along one side C1 in the direction perpendicular to the beam C. The resistance plate 222 is formed in a plate shape with a length in the direction perpendicular to the beam C that is longer than that of the insertion piece 221. The resistance plate 222 is also formed without interruption in the vertical direction of the main body 220.

[0030] The mating portion 223 is located near the end of the third planar portion 227 of the main body portion 220 and on the planar portion of the roof side P1 of the resistance plate 222. The mating portion 223 is a mating hole into which the insertion piece 211 of the first divided body 21 is inserted.

[0031] In the assembled state, the insertion piece 211 of the first divided body 21 is fitted into the fitting portion 223 of the second divided body 22, and the insertion piece 221 of the second divided body 22 is fitted into the fitting portion 213 of the first divided body 21. When the cylindrical body 20 is installed in the installation hole 11, both the resistance plate 212 and the resistance plate 222 are oriented in the direction C perpendicular to the beam. The resistance plate 212 and the resistance plate 222 are aligned on approximately the same straight line in the direction C perpendicular to the beam.

[0032] Next, the column extension member 13 will be described. As shown in Figure 8, the column extension member 13 is connected to the lower part of the support column 2. The support column 2 in this embodiment is formed in a rectangular tube shape and is hollow inside. The column extension member 13 is inserted into the inside of the lower part of the support column 2 and fixed by the anchor rod 14. The column extension member 13 is, for example, a rectangular tube-shaped member. The material constituting the column extension member 13 is not particularly limited, but for example, it is made of an aluminum alloy.

[0033] The anchor rod 14 is a rod-shaped member that extends horizontally. The anchor rod 14 penetrates horizontally through the lower part of the support column 2 with the column extension member 13 inserted. In this embodiment, the longitudinal direction of the anchor rod 14 is oriented in the direction C perpendicular to the beam. By the anchor rod 14 penetrating the support column 2 together with the column extension member 13, the column extension member 13 is temporarily fixed to the support column 2. Then, with the support column 2 and the column extension member 13 temporarily fixed, the support column 2 and the column extension member 13 are permanently fixed together with screws. The anchor rod 14 is filled with internal filling material 15 with both ends positioned outside the support column 2. The length of the column extension member 13 is set by the depth of the installation hole 11, etc.

[0034] As shown in Figure 5, the column extension member 13 has a through hole 19 formed in advance for passing the anchor rod 14 through it. By aligning the through hole 19 with the through hole 18 formed in the support column 2, the column extension member 13 can be connected to the support column 2 at the appropriate position.

[0035] The internal filler 15 is filled inside the installation hole 11 into the gap between the cylindrical body 20, the support column 2, and the column extension member 13. The internal filler 15 is, for example, mortar composed of a water-setting binder containing cement. In this embodiment, the internal filler 15 is a fast-setting mortar. The internal filler 15 is filled into the installation hole 11 with crushed stone 17 larger than gravel. The internal filler 15 is not particularly limited, and concrete or cement paste other than mortar can be used.

[0036] The surface filler 16 is formed above the internal filler 15. The surface filler 16 is made of soil, concrete, or other materials that have higher weather resistance than the internal filler 15. The surface of the surface filler 16 is exposed to the outside and is flush with the top surface of the ground 100. When the surface filler 16 is made of soil, the structure is aesthetically pleasing because the internal filler 15 is not exposed on the surface.

[0037] Next, the construction method for the foundation structure 10 of the roof structure 1 will be described. In the following example, the construction of the foundation structure 10 of the roof structure 1 of the first embodiment will be used as an example, but the construction method will be the same for the second embodiment and subsequent embodiments.

[0038] First, as shown in Figure 9A, the assembled cylindrical body 20 is placed on the ground 100, and a driving process is performed in which the cylindrical body 20 is driven into the ground 100 using tools 101 such as a driving rod or hammer. The driving process is carried out by changing the driving points while considering the balance of the front, back, left, and right so that the cylindrical body 20 is evenly embedded in the ground 100. The assembly of the cylindrical body 20 is performed by inserting the second divided part 22 into the first divided part 21 in the vertical direction, or by inserting the first divided part 21 into the second divided part 22.

[0039] Next, an excavation process is carried out to form an installation hole 11 in the ground 100. The excavation process is carried out after the cylindrical body 20 has been driven into the ground 100 during the driving process. In the excavation process, ordinary excavation tools such as a double shovel are used.

[0040] In the excavation process, as shown in Figure 9B, an excavator 102 may be used, for example. When using an excavator 102, the lower part of the cylindrical body 20 is buried in the ground 100, the excavator 102 is passed inside the cylindrical body 20, and the rotary excavation section 103 of the excavator 102 is driven. The rotary excavation section 103 of the excavator 102 is, for example, a drill, the screw of an earth auger, etc. The soil is excavated by the rotational drive of the rotary excavation section 103. Using an excavator makes the excavation process even more efficient.

[0041] The cylindrical body 20 in this embodiment is sized to allow the rotary drilling section 103 of the excavator 102, which forms the installation hole 11, to be inserted inside. Excavation by the excavator 102 is performed by repeatedly digging the ground 100 with the rotary drilling section 103 inserted inside the cylindrical body 20 and removing the excavated soil from the hole.

[0042] Next, as shown in Figure 9C, once the excavation process to form the installation hole 11 is completed, an embedding process is performed to bury the cylindrical body 20 to a deeper position in the ground 100. As shown in Figure 9D, the embedding process burys the cylindrical body 20 to a deeper position in the ground 100. In the embedding process, the same work as in Figure 9A is performed using tools 101 such as a driving rod or hammer. The embedding process described in Figures 9C and 9D and the excavation process described in Figure 9B may be repeated alternately.

[0043] Next, as shown in Figure 10A, gravel is placed in the installation hole 11, where the cylindrical body 20 is buried to a predetermined depth, to form a gravel layer 12. Then, the support column 2, to which the column extension members 13 are connected, is installed in the installation hole 11. The length of the column extension member 13 is set to correspond to the burial depth of the support column 2, and it is fixed to the support column 2 at an appropriate position corresponding to the burial depth using an anchor rod 14.

[0044] Next, as shown in Figure 10B, a filling process is carried out in which crushed stone 17 is poured into the installation hole 11 in which the support column 2 is installed, and an internal filling material 15 is formed. The addition of crushed stone 17 temporarily fixes the support column 2 inside the cylindrical body 20. With the support column 2 temporarily fixed, water and mortar mixed with it is poured in. Note that the addition of crushed stone 17 and the filling of the internal filling material 15 may be carried out in multiple stages, such as adding crushed stone 17, adding internal filling material 15, adding crushed stone 17, adding internal filling material 15, etc. When installing the support column 2 in the installation hole 11, it is necessary to stand the support column 2 vertically, and temporary fixing with an auxiliary jig is necessary until the internal filling material 15 is poured in. In this embodiment, by using fast-setting mortar, the auxiliary jig supporting the support column 2 can be removed immediately after filling with the internal filling material 15 (or after filling with the surface filling material 16).

[0045] Then, as shown in Figure 10C, the surface filler 16 is filled. The internal filler 15 and the surface filler 16 may be formed separately or at the same time. If they are formed at the same time, the internal filler 15 and the surface filler 16 may have an integrated structure.

[0046] As described above, the roof structure 1 of the first embodiment comprises a support column 2 placed in an installation hole 11 formed in the ground 100, a beam 3 to which the support column 2 is connected and which supports the roof 4, a cylindrical body 20 embedded in the ground 100 and surrounding the support column 2, resistance plates 212 and 222 connected to the outer surface of the cylindrical body 20 and embedded in the ground 100 so that their planar portions face horizontal, and an internal filling material 15 filled in the installation hole 11 to fill the gap between the cylindrical body 20 and the support column 2. The resistance plates 212 and 222 are not placed on the side opposite to the side covered by the roof 4 in the beam direction B to which the beam 3 extends, but are arranged along the beam orthogonal direction C which is perpendicular to the beam direction B in a plan view.

[0047] As a result, even if a load is applied to the support column 2 that causes it to fall towards the adjacent property side P2 in the beam direction B, the resistance plates 212 and 222 embedded in the ground 100 can resist the movement of the support column 2 to fall. Furthermore, since the resistance plates 212 and 222 are not placed on the adjacent property side P2 in the beam direction B, even if the support column 2 is installed near the adjacent property boundary line P, the situation in which the foundation structure 10 encroaches on the adjacent property can be avoided, and effective use of the land can be achieved.

[0048] Furthermore, since the force in the beam direction B can be distributed and received by the planar portions of the resistance plates 212 and 222, the volume required for the foundation structure 10 can be reduced. In addition, by using the cylindrical body 20, the amount of excavation can be reduced while maintaining resistance to overturning, pulling out, and pushing, and the amount of internal filling material 15 required can be reduced, and the size of the foundation structure 10 can also be reduced. By using the cylindrical body 20, construction becomes easier and workability can be improved. The amount of excavation can be reduced, which reduces the amount of excavated soil to be discarded during construction, and the amount of internal filling material 15 to be filled can be reduced, which shortens the time required for the filling process of the internal filling material 15. Thus, according to the roof structure 1 of this embodiment, construction work can be made easier and quicker.

[0049] Furthermore, the cylindrical body 20 in this embodiment is a polygonal cylinder with four or more sides, and is constructed by joining together a plurality of first divided parts 21 and second divided parts 22. In this embodiment, the cylindrical body 20 is constructed as a polygonal cylinder, but it is not limited to this. The cylindrical body may be constructed as a cylindrical shape.

[0050] Furthermore, in this embodiment, the cylindrical body 20 consists of a first divided body 21 on which a resistance plate 212 is integrally formed, and a second divided body 22 having the same shape as the first divided body 21. The cylindrical body 20 is formed by joining the first divided body 21 and the second divided body 22, and the resistance plates 212 and 222 of the first divided body 21 and the second divided body 22 are positioned along the direction C perpendicular to the beam.

[0051] This allows the first and second parts 21 and 22 to have the same shape, thereby reducing manufacturing costs. Furthermore, because the first and second parts 21 and 22 have the same shape, they can be stacked, making storage and distribution easier.

[0052] Furthermore, in this embodiment, the first divided body 21 has a second planar portion 216 and a third planar portion 217 as inclined surfaces that are inclined in the direction C perpendicular to the beam in a plan view, and the second divided body 22 has a second planar portion 226 and a third planar portion 227 as inclined surfaces.

[0053] When transporting or packaging the first divided body 21 and the second divided body 22 in a stacked state, the divided body, which is bent at a right angle, becomes difficult to pull out from the stacked state. In this respect, according to the configuration of this embodiment, the first divided body 21 or the second divided body 22 can be easily removed from the stacked state by the inclined surface, improving work efficiency.

[0054] In this embodiment, the resistance plates 212 and 222 are arranged on both sides of the cylindrical body 20 in the direction C perpendicular to the beam.

[0055] As a result, the resistance plates 212 and 222 are located on both sides of the cylindrical body 20, allowing the cylindrical body 20 to be embedded in the ground 100 to the target position in a balanced manner during the driving and embedding processes, thereby making the driving and embedding processes more efficient. Furthermore, by having the cylindrical body 20 driven into the ground 100, the foundation ground is not disturbed, and the structure can be supported using the ground's inherent strength.

[0056] Furthermore, the roof structure 1 of this embodiment further includes a column extension member 13 connected to the lower part of the support column 2. This allows for adjustments to the length of the support column 2 without changing its length, even when it is necessary to change the length of the support column 2 due to the height of the roof 4 or the embedding length of the installation hole 11.

[0057] Furthermore, the construction method for the roof structure 1 of this embodiment is a construction method for a roof structure 1 comprising a support column 2 placed in an installation hole 11 formed in the ground 100, and a beam 3 to which the support column 2 is connected and which supports the roof 4, and includes a driving step in which a cylindrical body 20 to which resistance plates 212 and resistance plates 222, whose planar portions face the horizontal direction, are connected is driven into the ground 100 such that the resistance plates 212 and resistance plates 222 are aligned in a beam orthogonal direction C which is perpendicular to the beam direction B to which the beam 3 extends in a plan view; an excavation step after the driving step in which the installation hole 11 is formed by excavating from the inside of the cylindrical body 20 through the rotating excavation section 103 of an excavator 102; and a filling step in which the support column 2 is placed in the installation hole 11 and an internal filling material 15 is filled into the installation hole 11.

[0058] As a result, the ground 100 surrounded by the cylindrical body 20 is excavated by the excavator 102, allowing the rotational force of the rotary excavation unit 103 to be efficiently transmitted in the depth direction, and enabling more efficient excavation in the depth direction compared to when the cylindrical body 20 is not installed. This makes it possible to improve the efficiency of the construction of the roof structure 1, which has the effects described above.

[0059] Furthermore, the construction method for the roof structure 1 of this embodiment further includes an burying step in which the cylindrical body 20 is buried to a deeper position in the ground 100 after the excavation step.

[0060] As a result, during the burial process, the installation hole 11 is formed, allowing the cylindrical body 20 to be easily buried to a predetermined depth.

[0061] The configuration of the first embodiment has been described above. However, the configuration is not limited to the above embodiment. Next, an embodiment different from the first embodiment will be described with reference to the drawings.

[0062] [Second Embodiment] Figures 11A and 11B show the cylindrical body 40 of the foundation structure 10a of the roof structure 1 of the second embodiment. The cylindrical body 40 of the second embodiment is composed of a first divided body 41, a second divided body 42, a third divided body 43, and a fourth divided body 44.

[0063] The first divided body 41 and the second divided body 42 are arranged to face each other in the beam direction B. Both the first divided body 41 and the second divided body 42 are formed in the shape of an elongated rectangular plate. In this embodiment, the first divided body 41 and the second divided body 42 have the same shape when one of them is rotated 180°.

[0064] In a plan view, the first divided body 41 has a first mating portion 411, a second mating portion 412, and a third mating portion 413 on the surface facing the second divided body 42. The first mating portion 411 and the third mating portion 413 are located on both sides of the first divided body 41. The second mating portion 412 is located between the first mating portion 411 and the third mating portion 413. In the following description, the planar portion of the first divided body 41 between the first mating portion 411 and the second mating portion 412 is referred to as the first planar portion 415, and the planar portion between the second mating portion 412 and the third mating portion 413 is referred to as the resistance plate 416.

[0065] In a plan view, the second divided body 42 includes a first mating portion 421, a second mating portion 422, and a third mating portion 423 on the surface facing the first divided body 41. The first mating portion 421, the second mating portion 422, and the third mating portion 423 are positioned opposite the positions of the first mating portion 411, the second mating portion 412, and the third mating portion 413 of the first divided body 41 in the beam direction B. The planar portion between the first mating portion 421 and the second mating portion 422 of the second divided body 42 is designated as the first planar portion 425, and the planar portion between the second mating portion 422 and the third mating portion 423 is designated as the resistance plate 426.

[0066] The third segment 43 and the fourth segment 44 are arranged along the beam direction B. Both the third segment 43 and the fourth segment 44 are formed in the shape of rectangular flat plates. In this embodiment, the third segment 43 and the fourth segment 44 have the same shape.

[0067] The third divided body 43 comprises a first insertion piece 431 and a second insertion piece 432. The first insertion piece 431 is a piece that bends in a direction perpendicular to the end of one side (roof side P1) of the planar portion of the third divided body 43 and is formed in the vertical direction. The second insertion piece 432 is a piece that bends in a direction perpendicular to the end of the other side (adjacent land side P2) of the planar portion of the third divided body 43 and is formed in the vertical direction. The direction in which the first insertion piece 431 extends is the other side C2 of the beam perpendicular direction C, and the direction in which the second insertion piece 432 extends is the one side C1 of the beam perpendicular direction C, and they are in opposite directions.

[0068] The fourth segment 44 comprises a first insertion piece 441 and a second insertion piece 442. The first insertion piece 441 is a piece bent in a direction perpendicular to one end of the planar portion of the fourth segment 44 and is formed in the vertical direction. The second insertion piece 442 is a piece bent in a direction perpendicular to the other end of the planar portion of the fourth segment 44 and is formed in the vertical direction. The direction in which the first insertion piece 441 extends is the other side C2 of the beam perpendicular direction C, and the direction in which the second insertion piece 442 extends is the one side C1 of the beam perpendicular direction C, and these are opposite directions.

[0069] The support column 2, to which the column extension member 13 is attached, is installed in the space surrounded by the first segment 41, the second segment 42, the third segment 43, and the fourth segment 44, and this space is filled with internal filling material 15.

[0070] In the examples shown in Figures 11A and 11B, the first insertion piece 431 of the third segment 43 fits into the first fitting portion 411 of the first segment 41, and the second insertion piece 432 fits into the first fitting portion 421 of the second segment 42. Similarly, the first insertion piece 441 of the fourth segment 44 fits into the second fitting portion 412 of the first segment 41, and the second insertion piece 442 fits into the second fitting portion 422 of the second segment 42. Therefore, the first planar portion 415 of the first segment 41 functions as a portion surrounding the support column 2, and the first planar portion 425 of the second segment 42 functions as a portion surrounding the support column 2. Furthermore, the resistance plates 416 and 426 extend in the same direction in the beam-orthogonal direction C.

[0071] Furthermore, the cylindrical body 40 of the second embodiment allows for changes in the mating positions of the third division 43 and the fourth division 44. For example, as shown by the dashed line in Figure 11A, the first insertion piece 441 of the fourth division 44 can be mated with the third mating portion 413 of the first division 41, and the second insertion piece 442 can be mated with the third mating portion 423 of the second division 42. As a result, in a plan view, the space enclosed by the first division 41, the second division 42, the third division 43, and the fourth division 44 becomes a rectangle. Furthermore, the fourth division 44 may be moved to the position indicated by the dashed line, and the first insertion piece 431 of the third division 43 may be fitted into the second fitting portion 412 of the first division 41, and the second insertion piece 432 may be fitted into the second fitting portion 422 of the second division 42. In this case, the first planar portion 415 of the first division 41 will function as a resistance plate, and the first planar portion 425 of the second division 42 will function as a resistance plate.

[0072] Thus, in the second embodiment, the shape of the cylindrical body 40 can be flexibly changed according to the size of the support column 2, the condition of the ground 100, and the installation environment.

[0073] [Third Embodiment] Figures 12A and 12B show the cylindrical body 50 of the foundation structure 10b of the building according to the third embodiment. The cylindrical body 50 of the third embodiment is composed of a first divided body 51, a second divided body 52, a third divided body 43, and a fourth divided body 44. The third divided body 43 and the fourth divided body 44 have the same configuration as in the second embodiment.

[0074] The first divided body 51 and the second divided body 52 are arranged to face each other in the beam direction B. Both the first divided body 51 and the second divided body 52 are formed as elongated rectangular flat plates. In this embodiment, the first divided body 51 and the second divided body 52 have the same shape when one of them is rotated 180°.

[0075] In a plan view, the first divided body 51 has a first mating portion 511 and a second mating portion 512 on the surface facing the second divided body 52. ​​The first mating portion 511 is located at the end of the other side C2 in the direction C perpendicular to the beam, and the second mating portion 512 is located on the side of the first mating portion 511 than the end of the one side C1 in the direction C perpendicular to the beam. In the first divided body 51, the planar portion that does not surround the support column 2 becomes a resistance plate 515.

[0076] In a plan view, the second divided body 52 has a first mating portion 521 and a second mating portion 522 on the surface facing the first divided body 51. The first mating portion 521 is located at one end C1 in the direction perpendicular to the beam C, and the second mating portion 522 is located on the side of the first mating portion 521 to the other end C2 in the direction perpendicular to the beam C. In the second divided body 52, the planar portion that does not surround the support column 2 becomes a resistance plate 525.

[0077] The first insertion piece 431 of the third division 43 fits into the first fitting portion 511 of the first division 51, and the second insertion piece 432 fits into the second fitting portion 522 of the second division 52. Also, the first insertion piece 441 of the fourth division 44 fits into the second fitting portion 512 of the first division 51, and the second insertion piece 442 fits into the first fitting portion 521 of the second division 52.

[0078] The support column 2, to which the column extension member 13 is attached, is installed in the space surrounded by the first divided body 51, the second divided body 52, the third divided body 43, and the fourth divided body 44, and an internal filling material 15 is formed in this space.

[0079] In the third embodiment, the resistance plate 515 extends along one side C1 in the direction C perpendicular to the beam, while the resistance plate 525 extends along the other side C2 in the direction C perpendicular to the beam. The resistance plates 515 and 525 are offset from each other in the beam direction B.

[0080] [Fourth Embodiment] Figure 13 shows the cylindrical body 60 of the foundation structure 10c of the building according to the fourth embodiment. The cylindrical body 60 of the fourth embodiment is constructed by combining a first divided body 61 and a second divided body 62.

[0081] The first divided body 61 and the second divided body 62 are formed in a roughly L-shape in plan view, and the shape obtained by rotating either one by 180° is the same. The first divided body 61 includes an insertion piece 611 positioned at one end C1 of the L-shape, a mating portion 612 positioned on the side facing the second divided body 62, and a resistance plate 615 formed at the other end C2 of the L-shape.

[0082] The second divided body 62 includes an insertion piece 621 positioned at the other end C2 of the L-shape, a mating portion 622 positioned on the surface facing the first divided body 61, and a resistance plate 625 formed at the end C1 of the L-shape.

[0083] The insertion piece 611 of the first divided body 61 is fitted into the fitting portion 622 of the second divided body 62, and the insertion piece 621 of the second divided body 62 is fitted into the fitting portion 612 of the first divided body 61.

[0084] The support column 2, to which the column extension member 13 is attached, is installed in the space surrounded by the first divided body 61 and the second divided body 62, and an internal filling material 15 is formed in this space.

[0085] In the fourth embodiment, the resistance plate 615 extends to the other side C2 in the direction C perpendicular to the beam, while the resistance plate 625 extends to one side C1 in the direction C perpendicular to the beam. The resistance plates 615 and 625 are offset in the beam direction B. Furthermore, according to the configuration of the fourth embodiment, the cylindrical body 60 can be constructed from two members, the first divided body 61 and the second divided body 62, which have the same shape, thereby improving manufacturability and ease of assembly.

[0086] [Fifth Embodiment] The roof structure 1 in the first to fourth embodiments is a carport with support on both sides, but the configuration is not limited to this. As shown in Figures 14 and 15, the roof structure 1a can also be a carport with support on one side that has space to park one four-wheeled vehicle.

[0087] In the fifth embodiment, the roof structure 1a comprises two support columns 2 supported by the foundation structure 10, two beams 3 connected to each of the support columns 2, and a roof 4a supported by the two beams 3. The two support columns 2 are arranged along the boundary line P of the adjacent property. A drain pipe 5 for draining rainwater, etc., is also provided in one of the two support columns 2. The foundation structure 10 is assumed to have the same configuration as in the first embodiment.

[0088] In the configuration of the fifth embodiment, the foundation structure 10 is arranged such that the resistance plates 212 and 222 face in the direction extending in the direction perpendicular to the beam C. That is, the planar portions of the resistance plates 212 and 222 face the beam direction B. The foundation structure 10 of the roof structure 1a in the fifth embodiment may be changed to the foundation structures 10a to 10c described in the second to fourth embodiments.

[0089] Furthermore, in the roof structures 1 and 1a of the first to fifth embodiments, a resistance plate may be additionally arranged on the roof side P1 (opposite the adjacent property side P2) that is covered by the roof 4 in the beam direction B. Also, the roof structures 1 and 1a are not limited to carports, and this disclosure can be applied to various roof structures. For example, the roof structure may be applied to structures other than carports, such as bicycle parking areas, shelters, rest areas, terraces, bus stops, etc.

[0090] This disclosure is not limited to the embodiments described above, and modifications, improvements, etc., to the extent that they can achieve the purpose of this disclosure are included.

[0091] In the above embodiment, the resistance plates 212, 222, 416, 426, 515, 525, 615, and 625 were not placed on the side opposite to the side covered by the roof 4 in the beam direction in which the beam 3 extends. However, in addition to the configuration of the above embodiment, resistance plates may also be placed on the side of the beam 3 that is covered by the roof 4 in the beam direction in which the beam 3 extends. For example, in the first embodiment, in addition to the resistance plates 212 and 222 provided on the cylindrical body 20, resistance plates may also be provided on the side of the beam 3 that is covered by the roof 4 in the beam direction in which the beam 3 extends. [Explanation of symbols]

[0092] 1,1a Roof root structure; 2 Columns; 3 Beams; 4,4a Roof root; 10,10a~10c Foundation structure; 11 Pit; 15 Internal filling material; 20,40,50,60 Cylinder; 21,41,51,61 First partition; 22,42,52,62 Second partition; 212,222,416,426,515,525,615,625 Resistance plate

Claims

1. Support columns are placed in installation holes formed in the ground, The aforementioned support columns are connected to beams that support the roof, A cylindrical body is embedded in the ground and surrounds the support column, A resistance plate connected to the outer surface of the cylindrical body and embedded in the ground such that its planar portion faces horizontally, A filling material that fills the aforementioned installation hole and fills the gap between the cylindrical body and the support column, Equipped with, The aforementioned resistor plate is It is not positioned on the side of the beam that is covered by the roof in the beam direction in which the beam extends, but is positioned along the beam orthogonal direction which is perpendicular to the beam direction in a plan view. Roof structure.

2. The aforementioned cylindrical body is a polygonal cylinder with four or more sides. It is composed of multiple divided parts joined together. The roof structure according to claim 1.

3. The aforementioned cylindrical body is A first divided body in which the resistor plate is integrally formed, A second division having the same shape as the first division, It consists of, The first divided body and the second divided body are joined together to form the cylindrical body, and the resistance plates of the first divided body and the second divided body are positioned along the direction perpendicular to the beam. The roof structure according to claim 2.

4. The first and second divided bodies each have an inclined surface that is inclined in the direction perpendicular to the beam in a plan view. The roof structure according to claim 3.

5. The aforementioned resistor plate is Arranged on both sides of the cylindrical body in the direction perpendicular to the beam, A roof structure according to any one of claims 1 to 4.

6. The column further comprises a column extension member connected to the lower part of the aforementioned support column. A roof structure according to any one of claims 1 to 4.

7. A method for constructing a roof structure comprising support columns placed in installation holes formed in the ground, and beams to which the support columns are connected and which support the roof, A driving process in which a cylindrical body to which a resistance plate with a planar portion facing horizontal is connected is driven into the ground such that the resistance plate is aligned in a direction perpendicular to the beam direction in a plan view, and After the aforementioned driving step, an excavation step is performed to form the installation hole by excavating from the inside of the cylindrical body through an excavator, A filling step in which the support column is placed in the installation hole and a filling material is filled into the installation hole, Construction methods for roof structures, including those mentioned above.

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