JP2009167669A - Prop substructure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a prop substructure, of which the strength can be secured even if the buried position of a prot is eccentrically deviated from the central part of a concrete foundation, and low in cost. <P>SOLUTION: To the prop 1, a fixing metal piece 3 is attached in the region where the prop 1 is buried in a concrete foundation material 2; the fixing metal piece 3 comprises a first metal piece 20 to be attached to a first surface 10 constituting one side face of the prop 1, and a second metal piece 21 to be attached to a second surface 11 opposed to the first surface 10 among the side surfaces of the prop 1, wherein the first metal piece 20 is formed by having a concave part 30 abutting on the first surface 10 and the side surface 12 crossing at a right angle with it of the prop 1 so as to hug them and a plane part 31 extending from the end part on the open side of the concave part 30 in approximately right angle direction, and the metal piece 21 is formed by an abutting surface 35 abutting on the second surface 11 and opposed surface 36 extending outward from the abutting surface 35 and being opposed to the plane part 31, both formed in a plane state, also the plane part 31 and the opposed surface 36 are opposed to each other with a prescribed interval and connected and fixed with a tightening tool 22. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a column foundation structure for standing a column that constitutes a carport or a terrace on the ground, and more particularly to a column foundation structure in which a mounting bracket is provided at the lower end of the column and a concrete foundation material is cast. .

  In a structure such as a carport or a terrace, a column is erected on the ground, and a beam or the like is supported by the column that is erected. For this reason, a support | pillar needs to be firmly supported by the ground, and a support | pillar foundation structure is used as a structure for it. As a support foundation structure, a structure in which a concrete foundation material is placed in a region near the lower end of the support is known.

Usually, a support | pillar is embed | buried under the center part in the planar view of a concrete foundation material, and, thereby, sufficient standing strength can be ensured. However, as the housing conditions have changed, the land has become narrower, and there has been a growing demand for effective use of space even as little as possible. It is desirable to have a structure in which a support is embedded in And as such a support | pillar foundation structure, there exists a thing as listed in patent document 1, for example.
JP 2006-152586 A

  In the conventional technology, while attaching an eccentric foundation member arranged at the lower end of the column, and embedding the lower end of the column including the eccentric foundation member in the concrete foundation, while ensuring strength The support was supposed to be eccentric. However, the conventional strut base structure has a problem that the structure of the eccentric base member is relatively complicated and the number of parts is large, resulting in an increase in cost. In addition, the eccentric foundation member is used only when the column is eccentric, and the column can not be used when embedding the column in the center of the concrete foundation as usual. However, the cost was further increased.

  The present invention has been made to solve the above problems, and provides a strut foundation structure that can reliably ensure strength even if the embedding position of the strut is decentered from the center portion of the concrete foundation material and that is low in cost. For the purpose.

In order to solve the above-mentioned problems, the column foundation structure according to the present invention is a column foundation structure in which the column is erected on the ground by placing a concrete foundation material at the lower end of the column.
A fixing bracket is mounted on the column in a region embedded in the concrete base material, and the fixing bracket is attached to a first surface constituting a side surface of the column and the first of the side surfaces of the column. A second fitting attached to the second surface opposite to the first surface,
The first metal fitting includes a concave portion that comes into contact with the first surface and a side surface of the support that is orthogonal to the first surface, and a flat portion that extends in a substantially perpendicular direction from the opening-side end of the concave portion. The second metal fitting is formed in a flat plate shape with a contact surface that contacts the second surface and an opposing surface that extends outward from the contact surface and faces the flat portion. The plane portion and the opposed surface are opposed to each other with a predetermined distance and are connected and fixed by a fastener.

  Moreover, the support | pillar foundation structure which concerns on this invention supports the beam which the said support | pillar extends toward one direction side by an upper end part, and either one of the said 1st surface or the 2nd surface is in the extension direction of the said beam. It is structured to be facing.

  Furthermore, in the column foundation structure according to the present invention, the column is arranged to be deviated to one side from the center of the concrete foundation material, and the first surface is a surface to the side deviated from the center of the concrete foundation material. It is configured to be arranged as described above.

  Still further, the support foundation structure according to the present invention is characterized in that the fixing metal fittings are respectively attached to an upper part and a lower part of a region embedded in the concrete foundation material of the support pillar.

  And the support | pillar foundation structure which concerns on this invention is comprised by the said fixing bracket having the up-down direction width | variety ranging from an upper end part to a lower end part among the area | regions embedded in the concrete foundation material of the said support | pillar. .

  According to the support foundation structure according to the present invention, the support is provided with a fixing bracket in the region embedded in the concrete foundation material, and the fixing bracket is attached to the first surface of the support and the second support of the support. The first metal fitting is formed from a first surface and a concave portion that comes into contact with the first surface and a side surface of the support perpendicular to the first surface, and an opening-side end portion of the concave portion. The second metal fitting has a flat surface with a contact surface that contacts the second surface and a facing surface that extends outward from the contact surface and faces the flat portion. The flat portion and the facing surface are opposed to each other with a predetermined interval and are connected and fixed by a fastener, thereby sufficiently securing the fixing strength of the fixing bracket to the support column by the first bracket, And because the concrete is filled in the gap between the flat part and the opposite surface It is possible to increase the standing 設強 of the strut by surface and the facing surface, the buried position of the strut can be secured reliably strength by eccentric from the center of the concrete foundation material. In addition, since the fixing bracket has a simple configuration in which the first bracket and the second bracket are sandwiched and connected and fixed, the number of components is small and the cost can be reduced. Further, since the fixing bracket can be used even when the support column is embedded in the center portion of the concrete foundation material, the present structure can be used regardless of the location conditions where the support column is erected.

  Moreover, according to the support | pillar foundation structure which concerns on this invention, a support | pillar supports the beam extended toward one direction side by an upper end part, and either one of a 1st surface or a 2nd surface is a surface in the direction where a beam extends. By doing so, the load applied to the column by the beam can be reliably received by the flat surface of the first metal fitting and the opposing surface of the second metal fitting.

  Furthermore, according to the column foundation structure according to the present invention, the column is arranged so as to be biased to one side with respect to the center of the concrete foundation material, and the first surface faces the side biased with respect to the center of the concrete foundation material. By arrange | positioning, the distance of the plane part of the 1st metal fitting attached to a 1st surface and the side surface of a concrete foundation material can be ensured, and standing installation strength can be improved more.

  Still further, according to the support foundation structure according to the present invention, the fixing brackets are respectively attached to the upper part and the lower part of the region embedded in the concrete foundation material of the support pillars, thereby further improving the standing strength of the support pillars by the fixing brackets. Can be made.

  And according to the support | pillar foundation structure which concerns on this invention, the fixing bracket has the up-down direction width | variety ranging from an upper end part to a lower end part among the area | regions embedded in the concrete foundation material of a support | pillar, Therefore The standing strength can be further improved.

  Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a front view of a support foundation structure in the present embodiment, and FIG. 2 shows a cross-sectional view of the support foundation structure. In each of these drawings, the concrete base material 2 is drawn with imaginary lines. As shown in FIG. 1, in the support foundation structure in this embodiment, the concrete base material 2 is placed so that the fixing bracket 3 is attached to the lower end portion of the support 1 and the region where the fixing bracket 3 is attached is buried. The support column 1 is eccentrically arranged on one side from the center of the concrete base material 2.

  As shown in FIG. 2, the support column 1 is formed so that the cross section is substantially rectangular and the inside is hollow. Therefore, the support column 1 has four side surfaces. Among these, a side surface facing the side where the support column 1 is biased with respect to the center of the concrete base material 2 is a first surface 10, and a side surface facing the first surface is a second surface 11. The fixture 3 is composed of two parts, and is attached and connected so as to sandwich the first surface 10 and the second surface 11.

  In the fixing bracket 3, a first bracket 20 attached to the first surface 10 side and a second bracket 21 attached to the second surface 11 side are connected by a fastener 22. The first metal fitting 20 includes a recess 30 that contacts the first surface 10 of the support column 1 and the side surfaces 12 and 12 of the support column 1 orthogonal to the first surface 10, and an opening side end of the recess 30. The flat portion 31 extending in a substantially right-angle direction is formed so as to have a substantially hat-shaped cross section. On the other hand, the second metal fitting 21 has a contact surface 35 that contacts the second surface 11 of the support column 1, and a facing surface 36 that extends outward from the contact surface and faces the flat portion 31 of the first metal fitting 20. These are formed so as to form a single flat plate.

  The concave portion 30 of the first metal fitting 20 is formed so as to have a depth of about one third of the width of the side surface 12 of the support column 1, and accordingly, the flat portion 31 of the first metal fitting 20 and the second metal fitting 21. The facing surfaces 36 are opposed to each other with an interval of at least half the width of the side surface 12 of the support column 1. By placing the concrete foundation material 2 around the support column 1 to which the fixing metal fitting 3 is attached, the concrete is also filled between the flat portion 31 of the first metal fitting 20 and the facing surface 36 of the second metal fitting 21.

  As described above, the concrete is filled between the metal fittings extending outward from the side surface 12 of the support column 1, whereby the standing strength of the support column 1 can be increased. Here, since the first metal fitting 20 is attached so as to embrace the first surface 10 side of the support post 1, the attachment strength of the fixing metal attachment 3 to the support post 1 can be increased, and the flat portion of the first metal attachment 20 is provided. Since the space | interval of 31 and the opposing surface 36 of the 2nd metal fitting 21 is ensured sufficiently large, the standing strength of the support | pillar 1 can be enlarged.

  FIG. 3 shows an exploded cross-sectional view of the column 1 and the fixture 3. As shown in this figure, the first metal fitting 20 is attached from the first surface 10 side of the support column 1 and the second metal fitting 21 is attached from the second surface 11 side of the support column 1. The first surface 10 is fixed to the first surface 10. Insertion holes 31a and 36a are formed in the flat portion 31 of the first metal fitting 20 and the opposing surface 36 of the second metal fitting 21, respectively, and the bolts constituting the fastener 22 are inserted into the insertion holes 31a and 36a, Fastening is performed by a nut constituting the fastener 22 from the opposite side. As a result, the fixture 3 is fixed to the column 1.

  Further, as shown in FIG. 1, the fixing bracket 3 is provided at each of an upper end portion and a lower end portion in an area embedded in the concrete base material 2 of the column 1. Thereby, the standing strength of the column 1 can be further increased as compared with the case where there is only one fixture 3.

  Here, FIG. 1 shows a case where two fixing brackets 3 are provided, but one fixing bracket 3 that is wide in the vertical direction may be provided. In FIG. 4, the front view of the support | pillar foundation structure which has the fixing metal fitting 3 of another example is shown. As shown in this figure, the first metal fitting 20 and the second metal fitting 21 constituting the fixing metal fitting 3 have a vertical width extending from the upper end portion to the lower end portion in the region embedded in the concrete base material 2 of the column 1. By forming in this way, a sufficient standing strength can be ensured by the pair of fixing brackets.

  Next, a carport will be described as an example of a structure having the support foundation structure of the present embodiment. FIG. 5 shows a front view of the carport, and FIG. 6 shows a side view of the carport. As shown in each of these figures, the carport has a front frame member 40 and a rear frame member 41, which are provided with a beam 42 in a cantilever manner on a column 1 that is erected on the ground. The roof body 43 is supported by the beams 42 of the material 40 and the rear frame material 41.

  The beam 42 is formed in a straight line, while the roof body 43 is formed in a curved shape along the longitudinal direction of the beam 42. The roof body 43 is supported at both ends by the beam 42, and the intermediate portion is It is formed in a curved shape and is supported by an auxiliary beam 44 placed on the beam 42.

  In this carport, the lower end portion of the support column 1 has the support column base structure of the present embodiment, and the support column 1 is arranged so as to be offset from the center of the concrete foundation material 2 on the side opposite to the extending direction of the beam 42. . The first surface 10 of the support column 1 is arranged so as to face the side that is biased with respect to the center of the concrete base material 2, and accordingly, the second surface 11 of the support column 1 faces the extending direction of the beam 42. Placed in.

  Since the column 1 supports the load of the beam 42 that supports the roof body 43, a force is applied in a direction in which the column 1 falls to the second surface 11 side. The flat portion 31 and the facing surface 36 of the fixture 3 extend in a direction orthogonal to the direction in which the beam 42 extends, and can reliably receive the load applied to the support column 1. Therefore, the standing strength of the column 1 can be appropriately improved.

  Moreover, the 1st surface 10 which attaches the 1st metal fitting 20 and the 2nd surface 11 which attaches the 2nd metal fitting 21 may be opposite. That is, the first metal fitting 20 is attached to the first surface 10 so that the first surface 10 faces the direction in which the beam 42 extends, and the surface opposite to the first surface 10 is the second surface 11. As an alternative, the second metal fitting 21 may be attached, and these may be connected and fixed by the fastener 22. However, the arrangement as shown in FIG. 5 can increase the strength because the distance between the end surface of the concrete base material 2 on which the support column 1 is biased and the flat portion 31 or the opposed surface 36 can be increased.

  Although the embodiment of the present invention has been described above, the application of the present invention is not limited to this embodiment, and can be applied in various ways within the scope of its technical idea. For example, in this embodiment, the support foundation structure is applied to the carport. However, the support structure of this embodiment is also applied to other structures having a structure in which the support pillar is erected on the ground, such as a terrace or a walkway. Can be applied.

It is a front view of the support | pillar foundation structure in this embodiment. It is a cross-sectional view of a column foundation structure. It is a disassembled cross-sectional view of a support | pillar and a fixture. It is a front view of the support | pillar foundation structure which has a fixing bracket of another example. It is a front view of a carport. It is a side view of a carport.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Support | pillar 2 Concrete base material 3 Fixing bracket 10 1st surface 11 2nd surface 20 1st bracket 21 2nd bracket 22 Fastener 23 Screw 30 Recessed part 31 Flat surface part 35 Contact surface 36 Opposite surface

Claims (5)

In the pillar foundation structure in which the pillar is erected on the ground by placing concrete foundation material on the lower end of the pillar,
A fixing bracket is mounted on the column in a region embedded in the concrete base material, and the fixing bracket is attached to a first surface constituting a side surface of the column and the first of the side surfaces of the column. A second fitting attached to the second surface opposite to the first surface,
The first metal fitting includes a concave portion that comes into contact with the first surface and a side surface of the support that is orthogonal to the first surface, and a flat portion that extends in a substantially perpendicular direction from the opening-side end of the concave portion. The second metal fitting is formed in a flat plate shape with a contact surface that contacts the second surface and an opposing surface that extends outward from the contact surface and faces the flat portion. The column base structure is characterized in that the flat portion and the opposed surface are opposed to each other with a predetermined interval and are connected and fixed by a fastener.   The support column supports a beam extending toward one direction at an upper end portion, and one of the first surface and the second surface faces the extending direction of the beam. The strut foundation structure according to 1.   The support column is disposed to be deviated to one side from the center of the concrete base material, and the first surface is disposed to face a side deviated from the center of the concrete base material. The support | pillar foundation structure of Claim 1 or 2.   The support base structure according to any one of claims 1 to 3, wherein the fixing metal fittings are respectively attached to an upper part and a lower part of a region embedded in the concrete base material of the support pillar.   The support post according to any one of claims 1 to 3, wherein the fixing bracket has a vertical width extending from an upper end portion to a lower end portion in a region embedded in the concrete base material of the support post. Foundation structure.

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