JP2022035249A - Structure with support column - Google Patents

Abstract

An object of the present invention is to provide a foundation structure having an eccentric foundation structure that does not collapse even in rainstorms and can improve supporting capacity. SOLUTION: The receiving fitting 21 includes a receiving fitting 21, a holding fitting 22, a support 5, and a pair of bolts 24 and nuts 23, 222, and the receiving fitting 21 has a bag portion that swallows the bolt 24 or the nut 23 and prevents it from rotating. The holding metal fitting 22 has a pair of insertion holes through which bolts 24 are inserted, and the support column 5 is fixed between the receiving metal fitting 21 and the holding metal fitting 22 by fastening the bolts 24 and nuts 23 and 222. [Selection diagram] Figure 2

Description

The present invention relates to structures having columns such as fences and carports.

The foundations of columns such as fences and carports were required to be strong enough not to collapse even in a storm.

An object of the present invention is to improve the bearing capacity of a foundation that does not collapse even in a storm.

The present invention includes a receiving metal fitting, a holding metal fitting, a support, and a pair of bolts and nuts. The above-mentioned problems are solved by making the strut a structure having a basic structure characterized by having an insertion hole and being sandwiched and fixed by a receiving metal fitting and a holding metal fitting by fastening a bolt and a nut. did.

You can create a supportive foundation that will not collapse even in a storm.

Explanatory view of a carport having an eccentric foundation (A) Plan view seen from below (B) Cross-sectional view between A and A in FIG. 1 (A) Assembly process diagram Structural view of the bracket (A) Front view (B) side view seen from the support column side Structural drawing of the holding metal fitting (A) L-shaped type (A-1) Front view seen toward the column (A-2) Cross-sectional view between B and B (B) U-shaped type (B-1) toward the column Front view (B-2) Cross-sectional view between C and C Structural drawing of the end of the threaded rod (A) Flat plate type pull-out prevention metal fittings (B) U-shaped pull-out prevention metal fittings (C) Square washer type pull-out prevention metal fittings (A)-(I) Variation showing the mounting structure of the eccentric foundation member corresponding to the support (cross-sectional view) Variations of the receiving bracket (A) Vertical cross-sectional view of the receiving bracket (B) Side view of the eccentric foundation member attached to the support column (C) Cross-sectional view between A and A in FIG. 7 (B)

(Example)
Hereinafter, the drawings will be described, but the following drawings have been created for the purpose of explanation, and for the sake of clarity, members unnecessary for the explanation may not be intentionally shown. In addition, the members may be intentionally shown larger or smaller for the sake of explanation, and are not drawings showing an accurate scale.

Any structure may be used as long as it has an eccentric foundation structure, but in the embodiment, the eccentric foundation 1 of the carport 8 which requires the bearing capacity of the foundation will be mainly described. On the contrary, the eccentric foundation of the fence, which does not require the bearing capacity of the foundation so much, will be mentioned in the explanation of the examples.

Usually, the foundation is constructed with the columns 5 placed in the center of the concrete foundation. However, if the borderline of the adjacent land is close or there is an obstacle, it may not be possible to install the pillar 5 in the center. The eccentric foundation 1 refers to a foundation that protrudes greatly inside the carport 8 by shifting the column 5 toward the borderline of the adjacent land or the obstacle side. It is called an eccentric foundation 1 because the pillar 5 is displaced from the center of the foundation to the borderline of the adjacent land or the obstacle side.

FIG. 1 is an explanatory view of a carport 8 having an eccentric foundation 1, and FIG. 1A is a plan view seen from below. The circumference of the eccentric foundation 1 is shown by cutting out the carport roof 81 as shown by the chain line for explanation. FIG. 1B is a cross-sectional view taken along the line AA of FIG. 1A. An eccentric foundation 1 is provided on the crushed stone / waste container 4.
The eccentric foundation 1 is
(1) Concrete 3 that greatly overhangs inside the carport 8
(2) Eccentric foundation member 2 attached to the support column 5 to increase the bearing capacity (The eccentric foundation member 2 is a member extending inward of the carport 8 and is integrated with the concrete 3 to increase the bearing capacity. Contributes to improvement.)
It is composed of.
In the carport 8 of the embodiment, since a strong bearing capacity is required, eccentric foundation members 2 are attached to two places above and below the support column 5. The specific configuration of the eccentric foundation member 2 will be described later.

(Structure and construction procedure of eccentric foundation member)
The eccentric foundation member 2 provided on the support column 5 to be hardened with concrete 3 is roughly divided into four members: a receiving metal fitting 21, a holding metal fitting 22, a threaded rod 24, and a first nut 23. As will be described later, this does not prevent the addition of other members.
Next, the structure of the eccentric foundation member 2 will be described so as to be clarified by following the construction procedure.
FIG. 2 is a process diagram.
1. In the first step, the support column 5 to which the eccentric foundation member 2 is attached is laid down.
2. In the second step, a threaded rod 24 is prepared and a first nut 23 is screwed into one end thereof. A hexagon bolt may be prepared instead of the threaded rod 24.
3. In the third step, the receiving metal fitting 21 is laid under the support column 5. Next, the first nut 23 screwed into the threaded rod 24 shown by the dotted line is swallowed into the bag portion 211. The bag portion 211 is a detent for the first nut 23, and has a size in which the first nut 23 is just fitted. A pair of threaded rods 24 are attached to the bracket 21 from both sides so as to sandwich the support column 5.
When a hexagon bolt is used instead of the threaded rod 24, the head of the hexagon bolt may be swallowed into the bag portion 211.
4. In the fourth step, the holding metal fitting 22 is inserted into a pair of threaded rods 24, and the receiving metal fitting 21 and the holding metal fitting 21 are fixed by a pair of second nuts 222 so as to be sandwiched and fixed. In this step, it is preferable to fasten the screw 225 to the holding metal fitting 22. This is because the eccentric foundation member 2 may move when concrete is driven in the sixth step described later.
5. In the fifth step, the fixing nut 261 is screwed into the other end of the threaded rod 24, the pull-out prevention metal fitting 27 is attached thereto, and then the pull-out prevention metal fitting 27 is fastened with the third nut 25.
The pull-out prevention metal fitting 27 has a function of improving the bearing capacity of the foundation. It is preferable to install it when a foundation with strong bearing capacity is required, such as a carport. Foundations such as fences that do not require large bearing capacity can be omitted.
6. In the sixth step, the column 5 for which the eccentric foundation member 2 has been attached is erected, and concrete is driven into the eccentric foundation 1.

(Structure of bracket)
3A and 3B are structural views of the receiving metal fitting 21, FIG. 3A is a front view seen from the support column 5, and FIG. 3B is a side view. As shown in FIG. 3B, the surface of the receiving metal fitting 21 on the support column mounting side is provided with an opening 2111. Further, the flange portions 214 are provided on the upper side and the lower side of the opening 2111, and the side of the flange portion 214 that comes into contact with the support column 5 is the contact surface portion 212. As shown in FIG. 3A, the bag portion 211 is provided over the entire length in the longitudinal direction of the receiving metal fitting 21, and first nut insertion openings 2112 are provided at both ends of the bag portion 211. Since the bag portion 211 is long, the position of the first nut 23 can be adjusted according to the thickness of the support column 5. FIG. 3A shows a state in which the first nut 23 is inserted in the bag portion 211, and the opening width of the bag portion contact surface opening 2111 is narrower than the two-sided width 23s of the first nut 23, and the first nut A part of the 23 is visible from the bag portion contact surface opening 2111 so that the first nut 23 does not spill from the surface on the support column mounting side. The presence of the bag portion 211 makes it possible to improve the efficiency of the assembling work of the eccentric foundation member 2. Further, since the bag portion 211 also functions as a detent by swallowing the first nut 23 and the hexagon bolt (not shown), the work efficiency is further improved.
Further, the bag portion 211 of the receiving metal fitting 21 serves as a spine, and does not bend even if it is strongly fastened to the holding metal fitting 22 via the threaded rod 24.
Further, since the flange portion 214 adjacent to the bag portion 211 of the receiving metal fitting 21 is provided, the contact surface portion 212 can be widely provided, and the support column 5 does not dent even if it is strongly fastened. When a strong force is applied to the eccentric foundation 1 due to a storm or the like, the flange portion 214 on the receiving metal fitting 21 can disperse the force applied to the support column 5, and the flange portion 214 improves the bearing capacity of the eccentric foundation 1. Contribute to.
It has become possible to provide a receiving metal fitting 21 that can be manufactured at low cost because of its simple structure.

(Structure of holding metal fittings)
The external structure of the holding metal fitting 22 may vary, but two typical examples are shown.
FIG. 4 is a structural diagram of the holding metal fitting 22, and FIG. 4A is an explanatory diagram of an L-shaped type. FIG. 4 (A-1) is a front view seen toward the support column 5, and FIG. 4 (A-2) is a cross-sectional view between BB.
The holding metal fitting 22 is provided with a pair of holding metal fitting elongated holes 223 (insertion holes) for passing the threaded rod 24. The thickness of the support column 5 varies, and it can be accommodated by the holding metal fitting elongated hole 223 (insertion hole). In the L-shaped type, one support wall 224 is provided in the direction away from the support column, and the support force is increased by being embedded in concrete. The support wall 224 may be provided so as to be on the upper side or on the lower side when the support column 5 is erected. By inserting the threaded rod 24 into the elongated hole 223 (insertion hole) of the holding metal fitting and fastening it with the second nut 222, the receiving metal fitting 21 and the holding metal fitting 22 are sandwiched and fixed to the support column 5. As described above, since the bag portion 211 of the receiving metal fitting 21 functions as a detent for the first nut 23, the tightening work of the second nut 222 can be easily performed.
FIG. 4B is an explanatory diagram of a U-shaped type. (B-1) is a front view seen toward the support column 5, and FIG. 4 (B-2) is a cross-sectional view between CC.
The U-shaped type is characterized in that support walls 224 are provided above and below the holding metal fitting 22. Other explanations are the same as for the L-shaped type.
In particular, the U-shaped type is preferable for the carport 8 where the bearing capacity of the foundation is required.

(Structure at the end of threaded rod)
The structure of the end of the threaded rod 24 (opposite to the bracket 21) can vary. FIG. 5 is a structural diagram of the end of the threaded rod.
In particular, when the bearing capacity of the eccentric foundation 1 is required as in the support column 5 of the carport 8, the flat plate type pull-out prevention metal fitting 27 shown in FIG. 5A is preferable. Further, the U-shaped pull-out prevention metal fitting 27 of FIG. 5 (B) having improved bearing capacity can also be adopted. It is preferable that the width of the pull-out prevention metal fitting 27 is larger than the width of the support column 5 because of its high bearing capacity. Further, it is preferable that the length of the threaded rod 24 is long because the bearing capacity is strong.
For an eccentric foundation 1 such as a fence that does not require so much bearing capacity, the bearing capacity required by simply adopting a long threaded rod 24 or by attaching a square washer 26 as shown in FIG. 5 (C). Sometimes it can be achieved.

(Number of eccentric foundation members)
The number of eccentric foundation members 2 attached to one support column 5 is preferably two at the top and bottom of the carport. If strength such as a fence is not required so much, one may be used.

(How to attach the eccentric foundation member for variations of columns)
6 (A) to 6 (I) are variations (cross-sectional views) showing the mounting structure of the eccentric foundation member 2 corresponding to the variety of the support columns 5 of the fence such as various shapes and the presence / absence of the reinforcing material 52. A bag portion 211 is provided on the receiving metal fitting 21 so that the receiving metal fitting 21 and the holding metal fitting 22 can be supported by a support column 5 having any diameter (see FIG. 3). For example, a wide strut as shown in FIG. 6 (I) or a thin strut as shown in FIG. 6 (H) can be used. Further, if necessary, as shown in FIG. 6H, it is not necessary to sandwich the receiver 21 at the center of the holding metal fitting 22.
Further, when concrete is driven, the holding metal fitting 22 is fixed to the support column 5 with a screw 225 so that the eccentric foundation member 2 does not move (see the above-mentioned fourth step and FIG. 2). As in (I), the receiving metal fitting 21 may be fixed to the support column 5 with a screw 225.
Further, as will be described later (variation of the receiving metal fitting), the reinforcing material 52 may be fixed from the receiving metal fitting 21 side with the reinforcing material fastening screw 521. Since the eccentric foundation member 2 may move when concrete is driven, the holding metal fitting 22 and the support column are fastened by the screw 224 (see the above-mentioned fourth step and FIG. 2), FIG. 6 (B). -As shown in FIG. 6D, the screw 225 is driven from the holding metal fitting 22 side for fixing the reinforcing material 52 and fixing the eccentric foundation member 2 to the support column 5 without using the reinforcing material fastening screw 521. It may be fixed.
Even if the shape of the support column 5 on the receiver 21 side is complicated as shown in FIGS. 6 (A) to 6 (C), 6 (E), and 6 (I), the support column 5 is for fastening bolts and nuts. Therefore, since the receiving metal fitting 21 and the holding metal fitting 22 are sandwiched and fixed, the eccentric foundation member 2 can be attached.
The above description is a variation of the support column 5 of the fence, but the same applies to the support column 5 of the carport 8. It can also be applied to the support column 5 of the shelter where designability is required.

(Variations of brackets)
The embodiment of FIG. 7 describes variations of the receiving metal fitting 21. As long as the bag portion 211 is provided, various variations of the receiving metal fitting 21 are included in the present invention in the same manner as other members. As shown in FIG. 7A, the receiving metal fitting 21 may have a support wall 215 at the upper part and the lower part. Further, as shown in FIG. 7B, the holding metal fitting 22 also has support walls 224 at the upper part and the lower part.
Further, in this embodiment, as shown in FIG. 7C, the reinforcing material 52 is inserted in the support column 5 in the longitudinal direction, and the reinforcing material 52 is inserted not only in the eccentric foundation 1 but also in a plurality of places including the above-ground portion. It is fixed by the fastening screw 521, and the support column 5 and the reinforcing material 52 are integrated. The screw head of the reinforcing material fastening screw 521 will protrude from the support column 5, and the contact surface portion 212 of the receiving metal fitting 21 with the support column 5 may not be firmly in contact with the support column 5. This is an unfavorable situation for the eccentric foundation member 2 that receives a strong force due to a storm or the like. Therefore, the contact surface portion 212 of the receiving metal fitting 21 is provided with a screw swallowing portion 2121 that swallows the screw head of the reinforcing material fastening screw 521.
As described above, it will be understood that the receiving metal fitting 21 may have various aspects.

As described above, the carport 8 and the eccentric foundation 1 of the fence according to the present invention have been described in detail with reference to the drawings, and various modifiable modes have been described. The present invention is not limited to the examples and modifiable embodiments, and any design changes that do not deviate from the gist of the present invention are included in the present invention.

Further, the above-mentioned examples and the deformable embodiments can be combined by diverting the technologies of each other as long as there is no particular contradiction or problem in the purpose and configuration thereof.

1 Eccentric foundation 2 Eccentric foundation member 21 Receiving metal fittings 211 Bag part 2111 Opening 212 Contact surface part 2121 Screw swallowing part 214 Bracket part 215 Support wall 22 Holding metal fittings 222 2nd nut 223 Holding metal fittings Long hole (insertion hole)
224 Support wall 225 Screw 23 1st nut 23s Width 24 Threaded rod 25 3rd nut 26 Square washer 261 Fixing nut 27 Pull-out prevention metal fittings 3 Concrete 4 Crushed stone / waste concrete 5 Strut 52 Reinforcing material 521 Reinforcing material fastening screw 8 Carport 81 Carport roof

Claims (1)

Equipped with a receiving bracket, a holding bracket, a support, and a pair of bolts and nuts.
The bracket has a bag that swallows bolts or nuts and prevents rotation.
The holding metal fitting has a pair of insertion holes for inserting bolts, and the holding metal fitting has a pair of insertion holes.
A strut is a structure having a basic structure characterized in that it is sandwiched and fixed between a receiving metal fitting and a holding metal fitting by fastening a bolt and a nut.

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