Foundation structure of a post

Abstract

The present invention provides a support base structure that enables the maintenance of a facility in its correct position by generating rotational resistance even when rotational force is applied to the support due to wind pressure acting on the facility suspended from the support. According to a suitable embodiment of the present invention, the support base structure comprises a foundation block made of precast concrete, a support with its lower end inserted into the foundation block to a certain depth, and a fixing clamp that is fastened to an anchor bolt embedded in the foundation block and exerts a clamping force on the support. In this structure, a plurality of fixing keys for preventing rotation of the support are installed in a circular arrangement at the lower end of the support, and a support coupling hole is formed in the foundation block, which has a circular cross-section larger than the cross-section of the lower end of the support and is recessed to a certain depth from the upper surface, so that the lower end of the support is inserted to a certain depth, wherein a plurality of mortar-filling grooves for key coupling are formed in a circular arrangement with a certain depth on the inner surface of the support coupling hole. The above-mentioned support is characterized by the fact that a filling material is injected around the lower portion of the support and filled into a mortar filling groove for key coupling, and at the same time, a fixing key coupling groove is formed between the lower portion of the support and the inner surface of the support coupling hole to be coupled with a fixing key for preventing rotation of the support, and a cylindrical ring for preventing rotation is formed to have a filling groove coupling key filled in the mortar filling groove for key coupling.

Description

Technology Field

[0001] The present invention relates to a support base structure for installing a support, and more specifically, to a support base structure that enables the maintenance of a facility in its correct position by generating rotational resistance even when rotational force is applied to the support due to wind pressure acting on a facility suspended from the support. Background Technology

[0002] Generally, when facilities (e.g., signs, traffic lights, streetlights, etc.) are installed on a support post, strong winds exert wind pressure on the facility, causing rotational force to be generated. Therefore, if a support post with a facility attached is installed on a concrete foundation, strong winds can cause the post to rotate, altering the installation position (orientation) of the facility and making it difficult for the facility to perform its proper function. Consequently, when a support post with a facility attached is installed on a concrete foundation, it is required to install a support structure that prevents the post from rotating due to wind pressure.

[0003] As the background technology for the present invention, Korean registered patent No. 10-1031048 (Patent Document 1) proposes a 'rotating direction sign post'. This design ensures that even if the height of a vehicle loaded with cargo is higher than a road sign located above the road, it does not interfere with the operation of the vehicle. However, this background technology does not provide a technical solution to prevent the road sign from rotating when subjected to wind pressure caused by strong winds.

[0004] Another technology forming the background of the present invention is Korean Registered Patent No. 10-1236921 (Patent Document 2), which proposes a 'prefabricated concrete foundation block for fence posts.' This allows for the secure installation of fence posts by forming a concrete foundation block by dividing it in half and combining it in a prefabricated manner at the site. However, this background technology does not present any structure for inhibiting rotation of the posts. Prior art literature

[0005] Korean Registered Patent No. 10-1031048 Korean Registered Patent No. 10-1236921 The problem to be solved

[0006] The purpose of the present invention is to provide a support base structure that enables the maintenance of a facility in its correct position by generating rotational resistance even when rotational force is applied to the support due to wind pressure acting on the facility suspended from the support. means of solving the problem

[0007] According to a suitable embodiment of the present invention, in a support base structure comprising a foundation block made of precast concrete, a support column with a lower end inserted into the foundation block to a certain depth, and a fixing clamp that is fastened to an anchor bolt embedded in the foundation block and exerts a clamping force on the support column, a plurality of fixing keys for preventing rotation of the support column arranged in a circular arrangement are installed at the lower end of the support column, and a support column coupling hole is formed in the foundation block having a circular cross-section larger than the cross-section of the lower end of the support column and is recessed to a certain depth on the upper surface so as to insert the lower end of the support column to a certain depth, wherein a plurality of mortar filling grooves for key coupling arranged in a circular arrangement with a certain depth are formed on the inner surface of the support column coupling hole; The above-mentioned support is characterized by the fact that a filling material is injected around the lower portion of the support and filled into a mortar filling groove for key coupling, and at the same time, a fixing key coupling groove is formed between the lower portion of the support and the inner surface of the support coupling hole to be coupled with a fixing key for preventing rotation of the support, and a cylindrical ring for preventing rotation is formed to have a filling groove coupling key filled in the mortar filling groove for key coupling.

[0008] In addition, the lower part of the above-mentioned support is characterized by having an additional clamp coupling key installed thereon, which is positioned above the anti-rotation fixing key and is fitted into the fixing clamp.

[0009] In addition, the anti-rotation fixing key is characterized by being installed in a position offset from the mortar filling groove for key coupling.

[0010] In addition, the support is characterized as being one of a street light pole, a traffic light pole, a tower support, or a support for facilities.

[0011] In addition, the lower part within the support joint hole is characterized by having a support positioning protrusion formed therein, which is integrated with the foundation block, forms a concentric axis with the support joint hole, has a conical angle, and protrudes upward with a hollow interior.

[0012] In addition, the protrusion for positioning the support column is characterized by having a plurality of anti-rotation fitting plate coupling grooves formed by being recessed to a certain depth from the upper surface, and further having an anti-rotation fitting plate installed at the lower end of the support column, each fitted into the fitting plate coupling grooves in equal numbers. Effects of the invention

[0013] According to the support base structure of the present invention, a plurality of circularly arranged fixing keys for preventing support rotation are installed at the lower end of the support, and a mortar filling groove for key coupling is formed in the foundation block. A filling material is injected around the perimeter of the lower end of the support to fill the space between the mortar filling groove for key coupling and the fixing keys for preventing support rotation around the perimeter of the lower end of the support, thereby performing a rotation suppression function. Consequently, even if significant wind pressure acts on a facility suspended from the support, rotational resistance is generated, making it possible to maintain the facility in its correct position.

[0014] In addition, if a clamp coupling key that is fitted into a fixing clamp is further formed at the lower part of the support, the rotational resistance of the support increases, thereby enhancing the stability of the facility's posture.

[0015] In addition, even when a protrusion for positioning the support is formed on the foundation block and a rotation-prevention insert is installed on the support side, the rotational resistance of the support can be increased, thereby further enhancing the stability of the facility's posture. Brief explanation of the drawing

[0016] The following drawings attached to this specification illustrate preferred embodiments of the present invention and serve to further enhance understanding of the technical concept of the present invention together with the detailed description thereof; therefore, the present invention should not be interpreted as being limited only to the matters described in the attached drawings. FIG. 1 is an exploded perspective view of a foundation block and a support according to an embodiment of the present invention. FIG. 2 is an enlarged view of the upper side of the foundation block shown in FIG. 1. FIG. 3a is a diagram showing the combined state of the foundation block and the support of FIG. 1. Fig. 3b is a plan view of Fig. 3a. Figure 4 is a state in which mortar is filled around the lower perimeter of the support in the state of Figure 3a to prevent rotation of the support. FIG. 5 is a plan view of an anti-rotation cylindrical ring formed by the mortar filled in FIG. 4. FIG. 6a is a front view of the lower part of the support applied in FIG. 1. Fig. 6b is a cross-sectional view along line AA of Fig. 6a. FIG. 7 is a plan view showing a state in which a clamp coupling key is additionally formed at the lower end of a support according to the present invention and coupled with a fixing clamp. FIG. 8 is a diagram showing a state in which a rotation-preventing insert plate is installed at the lower end of a support according to the present invention and coupled to a protrusion for determining the position of a support of a foundation block. FIG. 9 is a perspective view of the lower part of the support applied in FIG. 8. Specific details for implementing the invention

[0017] The present invention will be described in detail below with reference to embodiments shown in the attached drawings, but the presented embodiments are exemplary for a clear understanding of the present invention and the present invention is not limited thereto.

[0018] The support base structure (10) according to the present invention comprises a foundation block (20) made of precast concrete as shown in FIGS. 1 to 3b, a support (30) with its lower end inserted into the foundation block (20) to a certain depth, and a fixing clamp (50) that is fastened to an anchor bolt (40) embedded in the foundation block (20) and exerts a clamping force on the support (30). In particular, the support base structure (10) has a structure that can prevent rotation after the support (30) is installed.

[0019] Here, the support (30) can be any one of a street light pole, a traffic light pole, a tower support, or a support for facilities. A support for facilities can be, for example, a support for a traffic sign.

[0020] As shown in FIGS. 6a and 6b, a support (30) is equipped with a plurality of support rotation prevention fixing keys (302) arranged in a circular pattern at its lower end. The support rotation prevention fixing keys (302) have a certain length and are installed protruding from the outer surface of the lower end of the support (30). The support rotation prevention fixing keys (302) can be installed by being made of steel and then welded.

[0021] As shown in FIGS. 1 and 2, a support column coupling hole (202) is formed in the base block (20), which has a circular cross-section larger than the cross-section of the lower part of the support column (30) and is recessed to a certain depth on the upper surface. In this embodiment, the support column coupling hole (202) forms a conical shape that is wider at the top and narrower at the bottom, but it may also be formed with the same diameter. Accordingly, the lower part of the support column (30) is inserted to a certain depth through the support column coupling hole (202).

[0022] A plurality of key coupling mortar filling grooves (202a) are formed on the inner surface of the support joint hole (202) in a circular arrangement with a certain depth. The key coupling mortar filling grooves (202a) are arranged in a greater number than the fixing key (302) for preventing the support from rotating, but the present invention is not limited to such a number of arrangements.

[0023] A filling material is injected around the lower portion of the support (30) to form a cylindrical ring (60) for preventing rotation. In this embodiment, mortar was used as the filling material, but any other material that solidifies and possesses the required shear strength is sufficient. The cylindrical ring (60) for preventing rotation is formed between the lower portion of the support (30) and the inner surface of the support coupling hole (202) by the injected filling material. Accordingly, the cylindrical ring (60) for preventing rotation has a fixed key coupling groove (602) recessed in the inner surface and a filling groove coupling key (604) protruding in the outer surface, as shown in FIG. 5.

[0024] Preferably, to avoid the concentration of shear stress on the anti-rotation cylindrical ring (60), the anti-rotation fixing key (302) is preferably installed at a position offset from the key coupling mortar filling groove (202a).

[0025] Here, the fixing key coupling groove (602) of the anti-rotation cylindrical ring (60) is formed by the support column anti-rotation fixing key (302) installed around the lower part of the support column (30), and the filling groove coupling key (604) is formed by the key coupling mortar filling groove (202a) formed on the inner surface of the support column coupling hole (202).

[0026] Accordingly, the lower part of the support (30) is embedded in the support coupling hole (202) via a rotation-prevention cylindrical ring (60), and at this time, the fixing key coupling groove (602) of the rotation-prevention cylindrical ring (60) is coupled to the rotation-prevention fixing key (302), and the filling groove coupling key (604) is coupled to the key coupling mortar filling groove (202a) of the support coupling hole (202).

[0027] As a result, when rotational force is applied to the support (30) due to wind pressure caused by strong winds, rotational resistance is generated by shear stress in the anti-rotation fixing key (302) and the filling groove coupling key (604), thereby suppressing the rotation of the support (30). Therefore, the stability of the posture after installation of the support (30) is improved.

[0028] In addition, as shown in Fig. 7, a clamp coupling key (304) may be further installed at the lower end of the support (30) to be fitted and coupled to the fixing clamp (50) by being positioned above the anti-rotation fixing key (302).

[0029] In this case, when rotational force is applied to the support (30), the clamp coupling key (304) also shares the rotational resistance by generating shear stress, thereby providing stability that can suppress rotation even under greater wind loads.

[0030] Meanwhile, as shown in FIG. 3a, a support positioning protrusion (204) may be further formed in the lower part of the support coupling hole (202), which is integrated with the foundation block (20), forms a concentric axis with the support coupling hole (202), has a conical angle, and protrudes upward with a hollow interior. In this case, the support positioning protrusion (204) allows for easy center alignment when installing the support (30) on the foundation block (20).

[0031] Here, as shown in FIGS. 8 and 9, a plurality of anti-rotation fitting plate coupling grooves (204a) are formed in the protrusion (204) for positioning the support post, which is recessed to a certain depth from the upper surface, and an anti-rotation fitting plate (306) that is fitted into each of the fitting plate coupling grooves (204a) in equal numbers may be further installed at the lower end of the support post (30). In this case, when rotational force is applied to the support post (30), the anti-rotation fitting plate (306) coupled to the fitting plate coupling groove (204a) also shares the rotational resistance by generating shear stress, thereby enabling the suppression of rotation even under a greater wind load.

[0032] The unexplained symbol '70' is a 'cover' made of concrete to close the perimeter of the upper support (30) of the support joint hole (202).

[0033] Although the present invention has been described in detail with reference to the presented embodiments, those skilled in the art may make various modifications and variations without departing from the technical spirit of the present invention by referring to the presented embodiments. The present invention is not limited by such modifications and variations, but is limited only by the claims appended below. Explanation of the symbols

[0034] 20: Foundation Blocks 202: Support connection hole 202a: Mortar-filled groove for key connection 204: Protrusion for positioning support 204a: Anti-rotation insert plate coupling groove 30: Landlord 302: Fixing key to prevent support rotation 304: Clamp connecting key 306: Anti-rotation insert plate 50: Fixing clamp 60: Cylindrical ring for anti-rotation 602: Fixed key engagement groove 604: Filling groove connecting key

Claims

Claim 1 In a support base structure (10) comprising a foundation block (20) made of precast concrete, a support (30) with its lower end inserted into the foundation block (20) to a certain depth, and a fixing clamp (50) that is fastened to an anchor bolt (40) embedded in the foundation block (20) and exerts a clamping force on the support (30), a plurality of support rotation prevention fixing keys (302) arranged in a circular pattern are installed at the lower end of the support (30), and a support coupling hole (202) is formed in the foundation block (20) with a circular cross-section larger than the cross-section of the lower end of the support and is recessed to a certain depth from the upper surface so that the lower end of the support (30) is inserted to a certain depth, wherein a plurality of key coupling mortar filling grooves (202a) arranged in a circular pattern with a certain depth are formed on the inner surface of the support coupling hole (202); and a filling material is injected around the lower end of the support (30) to form a key coupling A support base structure for preventing rotation of a support, characterized by having a fixing key coupling groove (602) that is filled in the mortar filling groove (202a) and simultaneously coupled with a fixing key (302) for preventing rotation of the support between the lower circumference of the support (30) and the inner surface of the support coupling hole (202), and a cylindrical ring (60) for preventing rotation that has a filling groove coupling key (604) filled in the mortar filling groove (202a) for key coupling. Claim 2 A support base structure for preventing rotation of a support, characterized in that, in the first paragraph, a clamp coupling key (304) is further installed at the lower end of the support (30) and is positioned above the anti-rotation fixing key (302) and fitted into the fixing clamp (50). Claim 3 A support base structure for preventing rotation of a support, characterized in that, in claim 1, the anti-rotation fixing key (302) is installed in a position offset from the key coupling mortar filling groove (202a). Claim 4 A support base structure for preventing rotation of a support, characterized in that, in claim 1, the support (30) is one of a street light pole, a traffic light pole, a tower support, or a support for facilities. Claim 5 A support base structure for preventing rotation of a support, characterized in that, in the first paragraph, a support positioning protrusion (204) is further formed in the lower part of the support coupling hole (202), is integrated with the base block (20), forms a concentric axis with the support coupling hole (202), has a conical angle, and protrudes upward in a hollow shape. Claim 6 A support base structure for preventing rotation of a support, characterized in that, in the 5th paragraph, a plurality of anti-rotation fitting plate coupling grooves (204a) are formed in the upper surface of the protrusion (204) for positioning the support, and an anti-rotation fitting plate (306) is further installed at the lower end of the support (30), each fitting into the fitting plate coupling grooves (204a) in equal numbers.

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