JP2020026721A - Foundation of structure and construction method of structure - Google Patents

Abstract

To provide a foundation for fixing a structure onto a support post and its construction method, capable of facilitating construction and having a strong structure.SOLUTION: A foundation 1 includes: a support post part 2 for mounting a structure to an upper part; a base part for supporting the support post part 2 at a lower part; and four piles 3 for fixing the base part to a ground surface. The base part includes: a pile connection part 4 connected to the piles 3; a rotary support part 5 for rotatably mounting the support post part 2; and a rib part 6 and a connection part 7 fixed to the pile connection part 4 so as to prevent overturning of the erected support post part 2. Holes adjustable in position are each provided on a flange part 3c of the pile 3 and the pile connection part 4. The structure is mounted on the upper part of the support post part 2 in a state where the support post part 2 is fallen, the support post part 2 is erected, and then the rib part 6 and the connection part 7 are mounted to the support post part, which prevents overturning of the support post part 2.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a foundation for a structure and a method for constructing the structure, and more particularly, to a foundation for erecting a structure on a pillar by standing a pillar and a method for constructing the foundation.

  While renewable energy is attracting attention, inventions for easily installing solar cell panels on farmland, pastures, vacant lots, and the like are expected.

  In Patent Document 1, a plurality of second tubes (11) are attached to a main horizontal load-bearing tube (10), and a solar panel (12) is attached to the second tube (11). By configuring the conductive tube (10) and the second tube (11) to be rotatable, the direction of the solar panel (12) can be adjusted to efficiently collect solar energy. An energy collection system is disclosed. The main horizontal load-bearing tube (10) is located between the posts (13) which are arranged perpendicular to the ground. The reference numerals in parentheses are reference numerals in Patent Document 1.

  At the time of construction, a perforated plate (6) is mounted on one screw pile (16), and a pin (7) is inserted into a hole of the plate (6), thereby to remove the post (13). It is fixed to the ground so that it can rotate at the base end. Then, the main horizontal load-bearing tube (10), the second tube (11), and the solar panel (12) are attached to the upper ends of the two posts (13), and the two posts (13) are attached. , Rotating about the pin (7) to raise the two posts (13). This causes the main horizontal load-bearing tube (10), the second tube (11), and the solar panel (12) to rise simultaneously, but after rising, the two cables (55, 56) are grounded. , And maintain the vertical position of the post (13).

JP-T-2012-520560 Japanese Patent Publication No. 4-15334 JP-A-4-343984 JP 2014-84603 A JP 2013-136913 A JP 2004-143867 A JP 2003-336257 A Registered Utility Model No. 3140159

  In Patent Document 1, only two cables (55, 56) are used to maintain the verticality of the post (13). Therefore, the vertical position of the post (13) may not be maintained due to the influence of strong wind, snowfall, earthquake, or the like, and the basic structure disclosed in Patent Literature 1 may not be used depending on the area where the post (13) is used. In particular, in a country such as Japan where there are many strong winds, snowfall, and earthquakes, the foundation structure described in Patent Document 1 may be an insufficient foundation.

  Further, in Patent Document 1, the plate (6) is fixed to the ground by using one screw pile (16). However, in order to support the upper structure with one screw pile (16). It is necessary to lengthen the screw pile (16) in order to exert the supporting force of the screw pile (16). When the screw pile (16) is lengthened, the screw pile (16) may reach the bedrock depending on the construction site, and the screw pile (16) may not be driven any further.

  Although the above-mentioned problems exist, in the foundation structure described in Patent Documents 2 to 8 using a screw pile, it is impossible to rotate the support column and raise it, and it is described in Patent Documents 2 to 8. The substructure cannot be used as it is.

  When the basic structure described in Patent Documents 2 to 8 that cannot rotate the column is used, an aerial work vehicle is required depending on the length of the column. Construction using an aerial work vehicle leads to an increase in construction costs. Also, depending on the construction site, there is a case where the aerial work vehicle cannot be used.

  Therefore, an object of the present invention is to provide a foundation for fixing a structure on a support and its construction method, which is easy to perform, and provides a foundation and a construction method of a durable structure. .

  In order to solve the above problems, the present invention has the following features. The present invention provides a foundation for a structure, a support for mounting the structure on an upper part, a base for supporting the support on a lower part, and one or more piles for fixing the base to the ground. Is provided. The base portion includes a pile connection portion connected to the pile, a rotation support portion for rotatably mounting the support portion, and a fall prevention portion fixed to the base portion so that the erected support portion does not fall. including.

  Preferably, there are a plurality of piles. The pile connection part is a single plate-like member that can be connected to a plurality of piles. The rotation support portion is a member integrated with the pile connection portion or attached to the pile connection portion.

  Preferably, there are a plurality of piles. The pile connection part is a plurality of plate-like members that can be connected to the plurality of piles. The rotation support portion has a plate-like member for attaching each pile connection portion, and has a structure for rotatably supporting a lower portion of the support portion.

  Preferably, the pile and the pile connection portion can be connected using the first hole provided in the upper flange portion of the pile and the second hole provided in the pile connection portion. The first hole and / or the second hole has a shape capable of adjusting a mounting position of the pile connection portion with respect to the flange portion.

  In one embodiment, the first hole is a plurality of elongated holes arranged in a circumference. The second hole is a plurality of elongated holes arranged radially.

  In one embodiment, the first hole is a plurality of elongated holes arranged in a radial pattern. The second hole is a plurality of elongate holes arranged circumferentially.

  In one embodiment, the first hole is a plurality of elongated holes arranged in a radial pattern. The second hole is a plurality of long holes arranged so as to at least partially face the first hole.

  As one embodiment, at least one of the third hole provided in the plate-shaped member of the pile connection portion and the fourth hole provided in the plate-shaped member of the rotation support portion is provided in the rotation support portion. It has a shape that can adjust the mounting position.

  Preferably, the fall prevention portion has a structure in which the lower portion is fixed to the base portion and the upper portion abuts on the support portion to support the force of the support portion falling down.

  As one embodiment, the overturn prevention unit includes a plurality of ribs fixed to the base and a plurality of connecting parts connecting the ribs.

  In one embodiment, the overturn prevention portion includes a plurality of rib portions fixed to the base portion. The rib portion has a flange portion or a curved portion at an upper portion.

  Further, the present invention is a basic structure for erection of a structure, comprising first and second foundations for supporting the structure. The first and second foundations include a support for mounting the structure on the upper part, a base for supporting the support on the lower part, and one or more piles for fixing the base to the ground. The base portion includes a pile connection portion connected to the pile, a rotation support portion for rotatably mounting the support portion, and a fall prevention portion fixed to the base portion so that the erected support portion does not fall. And the structure is erected by the columns of the first and second foundations.

  Further, the present invention is a construction method for erection of a structure on two or more columns, and as a basis of the structure, a column for mounting the structure on an upper portion, and a column for supporting the column on a lower portion. Installing a pile in the ground using first and second foundations having a base part and one or more piles for fixing the base part to the ground; and a base for the first and second foundations. Connecting the part to the pile, attaching the support part to the base in a state where the support part is turned down, and rotating the support part to the base part, and mounting the structure on the upper part of the support part of the first and second foundations. The method includes a step of attaching, a step of erecting the first and second pillars to which the structure is attached, and a step of fixing the overturn prevention part to the base so that the erect pillars do not fall over.

  ADVANTAGE OF THE INVENTION According to this invention, a support | pillar part can be made to erect from a fallen state using a rotation support part. Therefore, the structure can be started up in a state where the structure is attached to the support portion, so that the work by the aerial work vehicle becomes unnecessary and the construction is facilitated. And since it is possible to prevent the pillar portion from falling down by using the overturn prevention portion, the structure can be more robustly compared to a conventional configuration in which the pillar portion is supported by pulling the pillar portion with a wire. It can be installed.

  By using multiple piles, even if the length of each pile is shortened, the holding power can be increased, so that the pile hits the bedrock and it can no longer be driven or screwed The situation can be avoided.

  As a form in the case of using a plurality of piles, by adopting a form of connecting a pile connection part and a plurality of piles by one plate-shaped member, it becomes possible to firmly fix the pile connection part to the ground, The result is a solid foundation.

  Further, as a form in which a plurality of piles are used, a form in which a pile connection part by a plurality of plate-shaped members and a plurality of piles are connected is adopted, and a rotation support part is attached to the plurality of pile connection parts, so that the pile Positioning of the connecting portion and the rotation support portion is facilitated. Further, the pile connection portion and the rotation support portion can be firmly fixed to the ground, and as a result, a strong foundation is provided.

  By setting the first and second holes so that the mounting position of the pile connection part with respect to the flange part can be adjusted as appropriate, even if the driving or screwing position of the pile is slightly shifted, the pile is mounted on the base. Parts can be attached. Therefore, the pile driving or screwing precision can be reduced, and the construction is facilitated.

  By setting the first hole to be a plurality of elongated holes arranged circumferentially and the second hole to be a plurality of elongated holes arranged radially, the mounting position of the pile connection portion with respect to the flange portion can be adjusted. Become like

  By setting the first hole to be a plurality of elongated holes arranged radially and the second hole to be a plurality of elongated holes arranged circumferentially, the mounting position of the pile connection portion with respect to the flange portion can be adjusted. Become like

  The first hole is a plurality of elongated holes arranged radially, and the second hole is a plurality of elongated holes arranged so as to at least partially face the first hole, so that the pile to the flange portion is formed. The attachment position of the connecting portion can be adjusted.

  At least one of the third hole provided in the plate member of the pile connection portion and the fourth hole provided in the plate member of the rotation support portion adjusts the mounting position of the rotation support portion. In this case, the rotation supporting portion can be easily positioned, and the construction can be easily performed.

  In the fall prevention portion, if the lower portion is fixed to the base portion and the upper portion abuts on the support portion to support the force of the support portion falling down, the support portion can be supported with a simple structure.

  If the overturn prevention portion has a plurality of rib portions fixed to the base portion and a plurality of connection portions for connecting the rib portions, the support portion can be supported firmly.

  In the overturn prevention portion, if the flange portion or the curved portion is provided above the plurality of rib portions fixed to the base portion, the support portion can be strongly supported.

  According to the basic structure of the present invention, it is possible to easily and robustly construct a structure.

  According to the construction method of the present invention, it is possible to easily and durably construct a structure.

  These and other objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

FIG. 1 is a perspective view showing a state in which a support 2 is attached to a foundation 1 according to the first embodiment of the present invention. FIG. 2 is a front view when the V direction in FIG. 1 is the front. FIG. 3 is a plan view of FIG. FIG. 4 is a bottom view of FIG. FIG. 5 is an enlarged exploded perspective view showing a connection portion between the foundation 1 and the support 2. FIG. 6 is a diagram illustrating a state in which the support 2 is attached to the rotation support 5. FIG. 7 is a diagram illustrating a state where the support portion 2 is raised and the rib portion 6 and the connecting portion 7 are erected. FIG. 8 is a plan view of the flange portion 3c of the pile 3. FIG. 9 is a plan view of a portion around the hole 4 a of the pile connection portion 4. FIG. 10 is a diagram illustrating an example of a position where the flange portion 3c and the pile connection portion 4 are connected. FIG. 11 is a perspective view showing a state in which the column 2 is attached to the foundation 10 according to the second embodiment of the present invention. FIG. 12 is a front view when the V direction in FIG. 11 is the front. FIG. 13 is a plan view of FIG. FIG. 14 is a bottom view of FIG. FIG. 15 is an enlarged exploded perspective view showing a connection portion between the foundation 10 and the column 2. FIG. 16 is a plan view of the flange portion 3c of the pile 3. FIG. 17 is a plan view of the pile connection portion 4. FIG. 18 is a plan view of a portion around the hole 5c (fourth hole) and the hole 5d of the rotation support portion 5. FIG. 19 is a diagram illustrating an example of a position where the flange portion 3c, the pile connection portion 4, and the rotation support portion 5 are connected. FIG. 20 is a view showing a modification of the hole 3d provided in the flange 3c of the pile 3. As shown in FIG. FIG. 21 is a diagram showing a modification of the hole 4a provided in the first or second pile connection portion 4. As shown in FIG. FIG. 22 is a diagram showing a state where the flange portion 3c of FIG. 20 and the pile connection portion 4 of FIG. 21 are connected. FIG. 23 is an example of a modified example of the overturn preventing portion of the column 2. FIG. 24 is an example of a modified example of the overturn prevention portion of the column 2.

(First embodiment)
FIG. 1 is a perspective view showing a state in which a support 2 is attached to a foundation 1 according to the first embodiment of the present invention. FIG. 2 is a front view when the V direction in FIG. 1 is the front. FIG. 3 is a plan view of FIG. FIG. 4 is a bottom view of FIG. FIG. 5 is an enlarged exploded perspective view showing a connection portion between the foundation 1 and the support 2. Hereinafter, the structure of the foundation 1 will be described with reference to FIGS. 1 to 5. In addition, in each drawing, for a portion clearly having the same function, a reference numeral is appropriately attached only to a representative portion in order to make the drawing easily visible (the same applies hereinafter).

  The foundation 1 includes four piles 3, a pile connection part 4, a rotation support part 5, four rib parts 6, four connection parts 7, and pins 8. The pile connection part 4, the rotation support part 5, the four rib parts 6, and the four connection parts 7 serve as a base part for supporting the support part 2 at the lower part.

  The support portion 2 includes an upper structure fixing portion 2a and a lower rotating portion 2b. A structure to be fixed on the column 2 is attached to the structure fixing portion 2a. The rotating portion 2b has a structure sandwiched between two plate members separated from each other, and the support portion 2 is attached to the support plate 5a of the rotation support portion 5 mounted on the pile connection portion 4. It has a hole 2c through which the pin 8 can be passed for rotatably mounting.

  The pile 3 is a screw pile in which the spiral portion 3a on the tip side of the body 3b is screwed into the ground while rotating. The pile 3 has a flange portion 3c on the base end side. A plurality of holes 3d (first holes) are formed in the flange portion 3c. The position of the hole 3d will be described later in detail. The foundation 1 is fixed to the ground by connecting the base to the pile 3.

  The pile connection portion 4 is a single plate member and has a plurality of holes 4a (first holes) corresponding to the holes 3d of the pile 3 at four corners. The hole 3d and the hole 4a are connected by fastening means such as bolts and nuts, so that the connection between the pile connection portion 4 and the pile 3 is possible. The position of the hole 3d will be described later in detail.

  The rotation support section 5 has a plate-like member 5b and a support plate 5a that rises vertically from the plate-like member 5b. The rotation support part 5 is connected to the pile connection part 4. Here, the rotation support portion 5 and the pile connection portion 4 are provided with opposing holes, and fastening means such as bolts and nuts are inserted into the holes to connect the two. The rotation support 5 and the pile connection 4 may be integrated in advance. The support plate 5a is provided with a hole corresponding to the hole 2c provided in the rotating part 2b.

  The rib portion 6 has a plate-like portion 6a at the lower end, and has a support portion 6b standing upright from the plate-like portion 6a. The plate portion 6a is provided with a hole 6c. A hole corresponding to the hole 6c is provided in the pile connection portion 4. The two holes are connected by fastening means such as bolts and nuts. Further, in order to fix the rib portion 6 to the pile connection portion 4, the anchor bolt may be raised from the pile connection portion 4, passed through the hole 6 c, and fixed with a nut. Good. Alternatively, a nut may be fixed to the pile connection portion 4 and fastened with a bolt from above the hole 6c of the plate-like portion 6a.

  The connecting portion 7 includes an arc-shaped member 7a and plate-shaped portions 7b provided at both ends of the arc-shaped member 7a. The plate portion 7b and the support portion 6b of the connection rib 6 are connected by fastening means such as bolts and nuts.

  The rib portion 6 and the connecting portion 7 function as a fall prevention portion fixed to the base portion so that the standing pillar portion 2 does not fall.

  6 and 7 are diagrams for explaining the construction process of the foundation 1. FIG. FIG. 6 is a diagram illustrating a state in which the support 2 is attached to the rotation support 5. FIG. 7 is a diagram illustrating a state where the support portion 2 is raised and the rib portion 6 and the connecting portion 7 are erected. 6 and 7, a structure 9 to be attached to the structure fixing portion 2 of the column portion 2 is represented by an imaginary line by a broken line. The structure of the structure 9 is not limited at all. The two foundations 1 (the first foundation and the second foundation) implement a foundation structure on which the structure 9 is erected.

  Hereinafter, with reference to FIGS. 1, 5, 6, and 7, a description will be given of a construction process from when the structure 9 is fixed to the column 2 by the foundation 1 to when it is erected in the air.

  First, the pile 3 is screwed into the ground. After the pile 3 is screwed in, the pile connection part 4 is placed on the flange part 3c of the pile 3, and the flange part 3c and the pile connection part 4 are connected using the holes 3d and the holes 4a. Prior to that, the pile connection part 4 and the rotation support part 5 are preferably connected.

  With the pile connection part 4 and the rotation support part 5 mounted on the pile 3, the rotation part 2 b of the support part 2 is inserted into the support plate 5 a of the rotation support part 5, and the support plate The pin 8 is inserted into a hole between the rotary member 5a and the rotating part 2b. The pin 8 is prevented from coming off by a nut, ring, not-shown pin or the like (not shown) so as not to come off.

  The above steps are carried out for the required number of foundations 1. At this point, as shown in FIG. 6, the support 2 is in a state of being inclined with respect to the ground, and the structure 9 is attached to the structure fixing portion 2a. FIG. 6 shows a state in which the structures 9 are attached to the respective structure fixing portions 2a by using the columns 2 that are rotatably attached to the two foundations 1, respectively. May be used alone, or three or more foundations 1 may be used.

  Next, the column 2 in the fallen state is started up. After the support 2 is raised, the rib 6 is fixed to the pile connection 4. Finally, the connecting portion 7 is attached between the two rib portions 6 so that the support portion 2 does not fall. In this way, as shown in FIG. 7, the structure 9 is fixed to the standing pillar 2 while being lifted above the pillar 2.

  Needless to say, the support portion 2 may be appropriately reinforced with a wire or the like so as not to fall down.

  FIG. 8 is a plan view of the flange portion 3c of the pile 3. The arrangement of the holes 3d formed in the flange 3c will be described with reference to FIG. As shown in FIG. 8, the holes 3d are a plurality of long holes arranged circumferentially from the center of the circular flange portion 3c.

  FIG. 9 is a plan view of a portion around the hole 4 a of the pile connection portion 4. With reference to FIG. 9, the arrangement of the holes 4a of the pile connection part 4 will be described. As shown in FIG. 9, the holes 4a are a plurality of elongated holes arranged so as to extend radially around a portion corresponding to the center of the flange portion 3c.

  FIG. 10 is a diagram illustrating an example of a position where the flange portion 3c and the pile connection portion 4 are connected. FIG. 10A shows a state in which the flange portion 3c and the pile connection portion 4 are connected without displacement, and FIG. 10B shows a state in which the flange portion 3c and the pile connection portion 4 are connected with displacement. Show.

  Since the pile 3 is fixed to the ground by screwing it into the ground, it is difficult to accurately arrange the flange portion 3c. Therefore, the position of the flange portion 3c may be slightly shifted.

  However, as shown in FIGS. 8 and 9, when a long hole formed in an arc shape from a certain center and a long hole formed in a radial shape from the same center are used, the displacement shown in FIG. Even if it is slightly displaced from the position where it is not, as shown in FIG. 10B, it is possible to connect the flange portion 3c and the pile connection portion 4 with both holes facing each other.

  Here, the flange portion 3c side is an arc-shaped long hole, and the pile connection portion 4 side is a radial long hole. Conversely, the flange portion 3c side is a radial long hole, and the pile connection portion is formed. Even if the four side is an arc-shaped long hole, and even if there is a shift, it is possible to connect the flange portion 3c and the pile connection portion 4 with both holes facing each other.

  That is, the hole 3d (first hole) on the side of the flange portion 3c and the hole 4a (second hole) on the side of the pile connection portion 4 are shaped so that the mounting position of the pile connection portion 4 with respect to the flange portion 3c can be adjusted. Any hole may be used as long as it has a shape having a sufficient size.

  As described above, even if the pile 3 is screwed out of an ideal position, if the holes whose sizes are adjusted are formed in the flange portion 3c and the pile connection portion 4, it is possible to connect the two. . Note that the shape of the hole is not limited to the above-described elongated hole as long as the hole can be connected even if a deviation occurs. Other examples of the first and second holes will be appropriately illustrated in the second and subsequent embodiments.

  As described above, in the first embodiment, the pile 3 and the pile connection portion 4 are connected to each other, and the pile connection portion 4 is provided with the rotation support portion 5 that can rotatably support the column 2. I have to. Thus, it is possible to attach the structure 9 to the column 2 in a state where the column 2 is tilted, and to raise the column 2 after the attachment. Then, after the support portion 2 is started up, if the support portion 2 is supported using the overturn prevention portion formed by the rib portion 6 and the connecting portion 7 so that the support portion 2 does not fall down, a working vehicle at a height is used. Without this, the structure 9 can be installed on the column 2.

(Second embodiment)
FIG. 11 is a perspective view showing a state in which the column 2 is attached to the foundation 10 according to the second embodiment of the present invention. FIG. 12 is a front view when the V direction in FIG. 11 is the front. FIG. 13 is a plan view of FIG. FIG. 14 is a bottom view of FIG. FIG. 15 is an enlarged exploded perspective view showing a connection portion between the foundation 10 and the column 2. Hereinafter, the structure of the foundation 10 will be described with reference to FIGS. 11 to 15. In the base 10, parts having the same functions as those of the base 1 of the first embodiment are denoted by the same reference numerals, and the description thereof will be appropriately omitted. The different points from the first embodiment will be mainly described. explain.

  The foundation 10 includes four piles 3, four pile connection parts 4, a rotation support part 5, four rib parts 6, four connection parts 7, and pins 8. The four pile connection parts 4, the rotation support part 5, the four rib parts 6, and the four connection parts 7 serve as a base part for supporting the column 2 at the lower part.

  Each pile connection part 4 is a plate-like member connected to the rotation support part 5 so as to protrude outward from an outer peripheral portion of the rotation support part 5. The plurality of holes 4a (second holes) for connecting to the flange portion 3c of the pile 3 and the plurality of holes 4b (third holes) for connecting to the rotation support portion 5 are provided in the pile connection portion 4. Is open. The arrangement of the holes 4a and 4b will be described later in detail.

  The plate-like member 5b of the rotation support portion 5 has a hole 5c (fourth hole) for fixing the pile connection portion 4 at the outer peripheral portion, and a hole 5d for fixing the rib portion 6. . Unlike the first embodiment, the rib portion 6 is configured to be attached to the plate member 5b via the hole 5d.

  With reference to FIG. 15, a description will be given of a construction process from fixing the structure to the column 2 with the foundation 10 to erection in the air.

  As in the first embodiment, the pile 3 is screwed into the ground. And the pile connection part 4 is attached to the flange part 3c.

  The rotation support part 5 is attached to the pile connection part 4.

  After that, similarly to the first embodiment, the structure is attached to the support portion 2, the support portion 2 is raised, and the rib portion 6 and the connecting portion 7 are attached.

  FIG. 16 is a plan view of the flange portion 3c of the pile 3. The arrangement of the holes 3d (first holes) formed in the flange 3c will be described with reference to FIG. As shown in FIG. 16, the holes 3d are a plurality of elongated holes radially arranged from the center of the circular flange portion 3c.

  FIG. 17 is a plan view of the pile connection portion 4. The arrangement of the holes 4a (second holes) and the holes 4b (third holes) of the pile connection portion 4 will be described with reference to FIG. As shown in FIG. 17, the holes 4a are a plurality of long holes formed at equal intervals and at the same angle from the center of the circular flange portion 3c, and are arranged so that at least a part thereof faces the hole 3d. I have. Here, it is assumed that four holes 4a are formed at every 90 degrees from the center, but the number and shape of the holes are not particularly limited.

  The hole 4b is a hole for connecting to the hole 5c of the rotation support portion 5, but may be a long hole.

  The shape of the hole 3d on the flange portion 3c side and the shape of the hole 4a on the pile connection portion 4 side may be opposite to each other. Even in this case, the displacement of the pile 3 can be absorbed.

  FIG. 18 is a plan view of a portion around the hole 5c (fourth hole) and the hole 5d of the rotation support portion 5. With reference to FIG. 18, the arrangement of the holes 5c and 5d of the rotation support portion 5 will be described. As shown in FIG. 18, the hole 5 c is a hole facing the hole 4 b of the pile connection part 4, but is a long hole in order to absorb the displacement of the pile 3. However, if the hole 4b side is a long hole, the hole 5c need not be a long hole. That is, at least one of the hole 4b and the hole 5c only needs to have a sufficient shape so that the mounting position of the rotation support portion 5 can be adjusted.

  The hole 5d is a hole for fixing the connecting rib 6.

  FIG. 19 is a diagram illustrating an example of a position where the flange portion 3c, the pile connection portion 4, and the rotation support portion 5 are connected. FIG. 19A shows a state in which the flange portion 3c, the pile connection portion 4, and the rotation support portion 5 are connected without displacement, and FIG. 19B shows a state in which the flange portion 3c, the pile connection portion 4, and And a state in which the rotation support portion 5 is connected to be shifted.

  As shown in FIG. 19 (b), by arranging the upper, lower, left and right holes 4a in the pile connecting portion 4, even if the pile 3 is screwed up and down and left and right, the shift is absorbed and the flange portion is absorbed. The pile connection part 4 can be attached to 3c.

  Further, as shown in FIG. 19B, even if the pile connecting portion 4 is displaced in the drawing, the hole 5c of the rotation support portion 5 is made to be a long hole, so that the displacement is absorbed and each pile The rotation support 5 can be attached to the connection 4.

  In addition, if the gap can be absorbed by the hole between the flange portion 3c and the pile connection portion 4, the adjustment of the gap by the elongated hole in the rotation support portion 5 is unnecessary.

  As described above, in the second embodiment, a separate pile connection portion 4 is attached to each of the piles 3, and the rotation support portion 5 is attached to the pile connection portion 4. Is attached, the support part 2 is raised, and the fixing work by the rib part 6 and the connecting part 7 becomes possible. By attaching the rotation support portion 5 to the plurality of pile connection portions 4, the positioning of the pile connection portion 4 and the rotation support portion 5 becomes easy.

  In the second embodiment, the holes provided in the flange portion 3c and the pile connection portion 4 are arranged so as to absorb the displacement, so that even if the pile 3 is displaced and screwed, the pile connection is performed. The rotation support portion 5 can be appropriately attached to the portion 4. Preferably, an elongated hole may be provided in the rotation support portion 5 and / or the pile connection portion 4 so that the displacement of the pile connection portion 4 can be absorbed.

(Modifications of the first and second holes)
FIG. 20 is a view showing a modification of the hole 3d provided in the flange 3c of the pile 3. As shown in FIG. As shown in FIG. 20, holes 3d may be formed radially from the center at intervals of, for example, 45 degrees. In FIG. 20, it is not essential that they are arranged at equal angles.

  FIG. 21 is a diagram showing a modification of the hole 4a provided in the first or second pile connection portion 4. As shown in FIG. As shown in FIG. 21, the hole 4 a may be a linear long hole arranged at an equal distance from the center at 45 ° intervals instead of the arc shape. In FIG. 21, it is not essential that they are arranged at equal angles.

  FIG. 22 is a diagram showing a state where the flange portion 3c of FIG. 20 and the pile connection portion 4 of FIG. 21 are connected. FIG. 20A shows the connection in a state where there is no shift, and FIG. 20B shows the connection in a state where there is a shift.

  In this manner, the flange 3c side may be a radially elongated hole, and the hole 4a on the pile connection portion 4 may be an elongated hole at least partially opposed to the hole 3d. It is possible to connect the flange portion 3c and the pile connection portion 4 by absorbing the displacement.

(Modification of rib 6 and connecting part 7)
The rib portion 6 and the connecting portion 7 are not limited to the above-described example as long as they are members that are supported by the pile connecting portion 4 or the rotation support portion 5 so that the support portion 2 does not fall. That is, the rib portion 6 and the connecting portion 7 only need to be the overturn preventing portion of the column portion 2. The lower portion is fixed to the base portion, and the upper portion is in contact with the column portion 2 so that the column portion 2 falls down. Any structure that supports is acceptable.

  From this point of view, the following are modified examples of the fall prevention unit. FIG. 23 and FIG. 24 show an example of a modification of the overturn prevention portion of the support portion 2.

  As shown in FIG. 23, if the column 2 is not a cylinder but a polygonal column, a flange 6d is provided at the upper end of the rib 6, and the flange 6d is fixed to the polygonal column. The plate-like portion 6 a at the lower end of the rib portion 6 may be fixed to the pile connection portion 4 by making contact.

  The flange 6d may be connected to the flange 6d of the other rib 6 directly or with a member interposed therebetween, so that the flange 6d and the column 2 are brought into contact with each other without being fixed. Good.

  As shown in FIG. 24, when the cylindrical support 2 is used, an arc-shaped curved member 6 e is provided at the upper end of the rib 6, the curved member 6 e is fixed to the cylindrical support, and the lower end of the rib 6 May be fixed to the pile connection portion 4.

  The bending member 6e may be fixed to the bending member 6e of the other rib portion 6 directly or with a member interposed therebetween, so that the bending member 6e and the support portion 2 are abutted without being fixed. Good.

  In FIGS. 23 and 24, the pile connection portion 4 and the rotation support portion 5 of the first embodiment are used, but the rotation support portion 5 of the second embodiment has the structure shown in FIGS. 23 and 24. It is needless to say that may be adopted.

  Note that the rib portion 6 and the connecting portion 7 may have a structure in which they are connected one by one in advance.

  In the above embodiment, the rib portions 6 and the connecting portions 7 are arranged at equal intervals every 90 degrees, and four are provided respectively. However, the present invention is not limited to this. The number of the rib portions 6 and the connection portions 7 and the angle of the arrangement interval are not limited as long as the support portions 2 are configured not to fall down. For example, a large number of ribs 6 and connecting portions 7 may be arranged in the direction in which the column portion 2 falls, or ribs 6 and connecting portions 7 having a robust structure may be arranged.

(Other modifications)
Hereinafter, other modified examples will be listed.
It goes without saying that each member may be fixed by welding as appropriate.

  In the above-described embodiment, four piles 3 are used, but at least one pile 3 may be used, and not only two or three piles but also five or more piles may be used. . In this case, the shapes of the pile connection portion 4 and the rotation support portion 5 may be appropriately changed according to the number of piles to be used, or the arrangement of the holes in the pile connection portion 4 may be appropriately changed.

  Depending on the structure to be installed, there is a case where a pile having no spiral portion 3a can be structurally tolerable. In such a case, a flanged stake having no spiral portion 3a may be used. Therefore, the present invention is not limited to using a spiral pile.

  In the above embodiment, the pile connection part 4 and the rotation support part 5 are separate members. However, as described above, the pile connection part 4 is integrally provided with the support plate 5a that rises directly vertically. The connecting portion 4 may be provided with a structure for rotatably supporting the turning portion 2b of the support portion 2.

  In the above-described embodiment, it is needless to say that what is described as being fixed by a fastening means such as a bolt may be appropriately replaced with a known fastening means such as a rivet or welding.

  In the above-described embodiment, parts that can be integrated with each other as separate members may be appropriately integrated.

  The flange portion 3c is not limited to a circular shape. The flange portion 3c may have any shape such as a quadrangle or another polygon, or a polygon that is appropriately chamfered. It is only necessary that a hole is provided at an appropriate position in the flange portion 3c.

  In the above-described embodiment, the rotation support portion 5 and the support portion 2 are rotatably supported by the pins 8. However, the support structure is not limited to the pins 8 only, and the rotation structure is rotatably supported. Any known structure capable of doing so may be employed. For example, as a simple modification, the lower end of the support portion 2 may be a single plate, and the rotation support portion 5 side may be two plates, and the lower end of the support portion 2 may be sandwiched to be rotatable. If it is desired to freely adjust the rotation direction, for example, the column 2 and the rotation support 5 may be connected by a universal joint structure.

  As described above, the present invention has been described in detail. However, the above description is merely an exemplification of the present invention in every aspect, and is not intended to limit the scope thereof. It goes without saying that various improvements and modifications can be made without departing from the scope of the invention. The constituent features of the invention disclosed in this specification shall be independently established as independent inventions. An invention in which the respective constituent elements are combined by any combination method is also included in the present invention.

  The present invention relates to a foundation for a structure and a construction method for the structure, and is industrially applicable.

1, 10 foundation 2 support 2a structure fixing part 2b rotating part 3 pile 3a spiral part 3b trunk 3c flange part 3d hole (first hole)
4 Pile connection part 4a hole (second hole)
4b hole (third hole)
5 Rotation support part 5a Support plate 5b Plate member 5c Hole (fourth hole)
5d hole 6 rib portion 6a plate portion 6b support portion 6c hole 6d flange portion 6e curved member 7 connecting portion 7a arc-shaped member 7b plate portion 8 pin 9 structure

Claims (13)

The foundation of the structure,
A column for attaching the structure to the upper part,
A base for supporting the support at the bottom,
And one or more piles for fixing the base to the ground,
The base part is
A pile connection portion connected to the pile,
A rotation support portion for rotatably mounting the support portion,
A base, comprising: a fall prevention portion fixed to the base portion so that the standing pillar portion does not fall. The stake is a plurality,
The pile connection unit is a single plate-like member that can be connected to a plurality of the piles,
2. The foundation according to claim 1, wherein the rotation support portion is a member integrated with the pile connection portion or a member attached to the pile connection portion. 3. The stake is a plurality,
The pile connection portion is a plurality of plate-like members that can be connected to the plurality of piles,
The said rotation support part has the plate-shaped member for attaching each said pile connection part, and has the structure which supports the lower part of the said support | pillar part so that rotation is possible, The Claim 1 characterized by the above-mentioned. Basis of description. Using a first hole provided in the upper flange portion of the pile and a second hole provided in the pile connection portion, the pile and the pile connection portion can be connected,
The said 1st hole and / or the said 2nd hole have the shape which can adjust the mounting position of the said pile connection part with respect to the said flange part, The Claim 1 characterized by the above-mentioned. Basis of description. The first hole is a plurality of elongated holes circumferentially arranged,
The foundation according to claim 4, wherein the second hole is a plurality of slots arranged in a radial pattern. The first hole is a plurality of elongated holes arranged radially,
The foundation according to claim 4, wherein the second hole is a plurality of slots arranged in a circumferential shape. The first hole is a plurality of elongated holes arranged radially,
The foundation according to claim 4, wherein the second hole is a plurality of long holes arranged so as to at least partially face the first hole.   At least one of a third hole provided in the plate-shaped member of the pile connection portion and a fourth hole provided in the plate-shaped member of the rotation support portion is attached to the rotation support portion. The foundation according to claim 3, characterized in that it has a shape whose position can be adjusted.   The said fall prevention part is a structure in which the lower part was fixed to the said base part, and it contact | abuts the said support | pillar part in an upper part, and is a structure which supports the force which the said support | pillar part falls down, The characterized by the above-mentioned. The basis described in. The fall prevention unit,
A plurality of ribs fixed to the base,
The foundation according to claim 9, further comprising a plurality of connecting portions connecting the rib portions. The fall prevention unit includes a plurality of ribs fixed to the base,
The foundation according to claim 9, wherein the rib portion has a flange portion or a curved portion at an upper portion. A foundation structure for erection of a structure,
Comprising first and second foundations for supporting the structure,
The first and second foundations are:
A column for attaching the structure to the upper part,
A base for supporting the support at the bottom,
And one or more piles for fixing the base to the ground,
The base part is
A pile connection portion connected to the pile,
A rotation support portion for rotatably mounting the support portion,
Including a fall prevention portion fixed to the base portion so that the standing pillar portion does not fall over,
The foundation structure, wherein the structure is erected by the support portions of the first and second foundations. A construction method for erection of a structure on two or more columns,
As a foundation of the structure, a strut for attaching the structure to an upper portion, a base for supporting the strut at a lower portion, and one or more piles for fixing the base to the ground are provided. Using the first and second foundations,
Installing the pile underground,
Connecting the base of the first and second foundations to the pile;
A step of rotatably attaching the support to the base in a state where the support is tilted,
Mounting the structure on top of the struts of the first and second foundations;
Erecting the columns of the first and second foundations to which the structure is attached;
Fixing the fall prevention portion to the base portion so that the raised support portion does not fall down.