JP2013217081A - Column and structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide: a column which is embedded in and erected on a foundation, can hardly cause breakage of the foundation even when it receives a load in the horizontal direction, and is free of having a risk that water is accumulated in its interior; and a structure including the column.SOLUTION: A column includes a column material, a reinforcement material, and left and right auxiliary materials. The reinforcement material is formed like the H in cross section and has left and right groove parts, and its lower end is embedded in and erected on a foundation. The column material is cylindrical, and is placed on and covers the reinforcement material. The auxiliary materials are inserted in a position vertically crossing over upper surfaces of both groove parts of the reinforcement material, and the side faces of the auxiliary materials are flush with an opening end of the groove part and form vertically extending protrusions.

Description

  The present invention relates to a pillar that forms a handrail and the like and a structure including the pillar.

  Conventionally, there is a handrail installed on a veranda of an apartment as shown in FIG. This handrail includes a column member 101 having a cross-sectional mouth shape and a reinforcing material 102 having a cross-sectional mouth shape that is slightly smaller than the pillar material, and a plurality of reinforcing members 102 are attached to mounting holes formed in a concrete foundation 104 (frame). It is inserted and mortar is poured and fixed upright, and each reinforcing member 102 is covered with a support material 101 and fixed. A headboard 105 is horizontally mounted on the upper end portion of each support member 101, a lower chord member 106 is attached between the adjacent support members 101, and a plurality of balustrades are provided between the upper member 105 and the lower chord member 106. 107 is attached.

  When a person leans on such a handrail, a load is applied in a substantially horizontal direction from the indoor side. Due to this load, the outdoor side surface of the reinforcing member 102 presses the foundation 104, and when the load exceeds the limit, shear failure occurs in the foundation 104. The only way to prevent this destruction is to widen the foundation 104 of the outdoor portion of the reinforcing member 102 that receives the load.

  However, on the veranda, for example, the foundation could not be widened to some extent. Further, since the reinforcing material has a mouth shape in cross section, there is a problem that water may accumulate inside.

  The present invention has been made in view of the above circumstances, and is erected by being embedded in a foundation, and even when subjected to a horizontal load, the foundation is not easily broken and there is no risk of water collecting inside. An object is to provide a column and a structure including the column.

  The invention of claim 1 of the present invention comprises a support material, a reinforcing material, and left and right auxiliary materials, and the reinforcing material has a left and right groove portion with an H-shaped cross section, and is embedded on the lower end portion. The support material is cylindrical and fixed over the reinforcing material, and the auxiliary material is inserted at a position straddling the upper surface of the base of both grooves of the reinforcing material. The side surface of the groove is flush with the opening end of the groove and is formed with a protrusion extending vertically. Here, left and right are directions in which the groove portions of the reinforcing material are opened (the two groove portions are opened leftward and rightward, respectively).

  The invention of claim 2 of the present invention is characterized in that a cut portion is formed by partially cutting the protrusion of the auxiliary material, and the cut portion is located directly below the upper surface of the foundation.

  Of the present invention, the invention according to claim 3 is characterized in that the upper end position and the lower end position of the left and right auxiliary members are different from each other.

  A fourth aspect of the present invention is characterized by comprising the support column according to the first, second, or third aspect.

  According to the first aspect of the present invention, when receiving a load from the horizontal direction orthogonal to the left-right direction (the opening direction of the groove portion of the reinforcing material), the foundation is pushed by the outdoor side surface and the protrusion of the reinforcing material. Since the load is distributed and received on a wider range of foundations, the foundations are less likely to break. Further, since the reinforcing member has an H-shaped cross section and no hollow portion exists, there is no possibility that water will accumulate. Furthermore, since only the support material can be seen from the outside, the appearance can be set freely, so that it can be easily developed into various products.

  According to the invention of claim 2 of the present invention, the side surface of the auxiliary material is flush with the opening end of the groove portion, and the protrusion is cut out immediately below the upper surface of the foundation. The outer peripheral shape of the material and the auxiliary material is rectangular, and sealing is easy.

  According to the invention of claim 3 of the present invention, the moment of inertia of the cross-section of the reinforcing material combined with the auxiliary material decreases stepwise from the upper surface of the foundation upward or downward, so that concentration of bending stress is avoided. In addition, the support material and the reinforcing material are hardly broken.

  According to the invention of the fourth aspect of the present invention, it is possible to provide a strong structural body against a load from the horizontal direction orthogonal to the left-right direction (the opening direction of the groove portion of the reinforcing material).

It is a perspective view of the support | pillar of this invention. It is an exploded view of a support | pillar, (a) is a front view, (b) is a top view. It is a perspective view of the handrail provided with the support | pillar of this invention. It is a three-view figure of a handrail, (a) is a side view, (b) is a front view, (c) is a top view. It is explanatory drawing of an effective projection area, (a) shows the case of this invention, (b) shows the case of a conventional product. It is a perspective view of the conventional handrail.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following, front, rear, left and right indicate the directions shown in FIG. This support | pillar is provided with the support | pillar material 1, the reinforcing material 2, and the two auxiliary materials 3, as shown in FIG.1 and FIG.2. The reinforcing member 2 is a shape member having an H-shaped cross section, and has two groove portions 21, and the groove portions 21 open in the left-right direction. The lower end portion of the reinforcing material 2 is embedded in the foundation 4, and the reinforcing material 2 is erected vertically. On the other hand, the support material 1 is a profile having a mouth shape in cross section, and is covered with a reinforcing material 2 from above and fixed with screws. And the auxiliary | assistant material 3 is a thing of a block shape, and is a shape which just fits in the groove part 21 of the reinforcing material 2, is inserted in the position which straddles the basic | foundation upper surface S of both the groove parts 21 up and down, 3 is fixed with a bolt penetrating 3. The side surfaces of the auxiliary material 3 (the left side surface of the left side auxiliary material 3 and the right side surface of the right side auxiliary material 3) are flush with the opening end of the groove portion 21, and the side surfaces are provided with protrusions 31 extending vertically. Are formed side by side. However, the protrusion 31 is cut out in a predetermined range on the lower side from the position of the base upper surface S to form a cut portion 32. The predetermined range is a range for filling a sealing material 44 described later. The left side auxiliary material 3 is longer in the vertical direction than the right side auxiliary material 3, and the upper end position of the left side auxiliary material 3 is higher than the upper end position of the right side auxiliary material 3. The lower end position of the auxiliary material 3 is lower than the lower end position of the right auxiliary material 3.

  Next, the case of a handrail is shown as an example of a structure provided with this support | pillar. This handrail is installed on the veranda of an apartment to prevent people from falling. The front side described above corresponds to the outdoor side, and the rear side corresponds to the indoor side. As shown in FIGS. 3 and 4, the concrete foundation 4 (frame) has a rising portion 41 formed at the outdoor end, and mounting holes are provided at regular intervals in the left-right direction on the upper surface of the rising portion 41. 42 is formed. Then, the lower end portion of the reinforcing material 2 is inserted into each mounting hole 42, and the mortar 43 is poured and fixed in an upright position, and the upper end portion of the mounting hole 42 is filled with a sealing material 44 to stop water. It is. The auxiliary material 3 is attached to the reinforcing material 2 as described above, and the support material 1 is further covered with screws from above. A substantially flat connecting plate 11 is screwed to the upper end portion of each column member 1, and L-shaped brackets 12 are screwed to the left and right side surfaces of the lower part of each column member 1. And the headboard auxiliary material 51, the lower chord material 6, and the handrail 7 are attached between the support | pillar materials 1 standingly arranged in this way at fixed intervals. More specifically, the headboard auxiliary material 51 has a U-shaped cross section and opens upward and extends in the left-right direction, and the lower chord material 6 has a U-shaped cross-section and opens downward and extends in the left-right direction. A plurality of handrails 7 having a mouth cross section are spanned and screwed to form a ladder shape. The left and right ends of the headboard auxiliary material 51 are screwed to the connecting plate 11, and the left and right ends of the lower chord material 6 are screwed to the bracket 12. Further, the headboard 5 is screwed to the upper side of the support material 1 and the headboard auxiliary material 51. In addition, although there is a gap between the lower end portion of the support material 1 and the foundation 4, this gap is covered with a cover material 8.

  In the handrail configured in this manner, when a person leans from the indoor side and the support column receives a load in the horizontal direction, the foundation 4 is pushed by the outdoor side surface of the reinforcing member 2 and the protrusion 31, and a wider range of foundations Since the load is dispersed and received at 4, the foundation 4 is more unlikely to break. More specifically, the area of the portion that receives the load in the concrete (foundation 4) is referred to as an effective projected area. If the effective projected area is large, it is strong against destruction. In the support column of the present invention, the effective projection area is a region that spreads at an angle of 90 degrees from the tip of the protrusion 31 on the indoor side (rear side) of the left and right auxiliary members 3 toward the outdoor side (front side) (FIG. 5 ( a) hatched portion). On the other hand, in the case of the conventional product shown in FIG. 6, the effective projected area is a region (hatched portion in FIG. 5B) that extends at an angle of 90 degrees from both ends of the outdoor side surface of the reinforcing member 102 in the direction of finding. ) In the present invention, compared with the conventional product, the starting point of the effective projection area moves to the indoor side (rear side), and the area becomes larger, so that the concrete is less likely to break. In addition, the protrusion 31 is formed side by side on the outdoor side (front side) and the indoor side (rear side), and the effective projection area extends from the tip of the protrusion 31 on the side receiving the load toward the load direction. Even when a load is applied from either the outdoor side or the indoor side, the effective projection area is increased compared to the case of the conventional product, and the concrete is not easily destroyed.

  Moreover, in this handrail, the screwing part of the support | pillar material 1 and another member (For example, the upper end part of the support | pillar material 1 and the screwing part of the coping 5 (A part of FIG.4 (b)), the side surface of the support | pillar material 1) The inside of the strut 1 from the screwing portion of the reinforcing material 2 (B portion in FIG. 4 (b)) and the side surface of the strut material 1 and the screwing portion of the lower chord material 6 (C portion in FIG. 4 (b)). However, since the reinforcing material 2 has an H-shaped cross section and no hollow portion exists, the water is produced from the lower end of the support material 1 to the outside as indicated by the dotted arrow in FIG. There is no risk of water collecting inside. In addition, since it is not sealed between the cover material 8 and the foundation | substrate 4, water is discharged | emitted from the clearance gap between both. Furthermore, since the side surface of the auxiliary material 3 is flush with the opening end of the groove portion 21 and the protrusion 31 is cut out immediately below the foundation upper surface S, the reinforcing material 2 and the auxiliary material 3 immediately below the foundation upper surface S are removed. The outer peripheral shape of the is rectangular and easy to seal. Moreover, since the cross-sectional secondary moment of the reinforcing material 2 combined with the auxiliary material 3 gradually decreases upward or downward from the base upper surface S, the concentration of bending stress is avoided, and the support material 1 and the reinforcing material 2 are avoided. It is hard to be broken.

  The present invention is not limited to the above embodiment. For example, as long as the strut material is cylindrical in shape covering the reinforcing material, the cross-sectional shape may be circular, elliptical, or a polygon other than a mouth shape, and can be freely set in consideration of design. Therefore, it can be easily developed into various products, and the column of the present invention can be applied to various structures such as a balcony roof in addition to a handrail. Further, the auxiliary material may be any material as long as it fits in the groove portion of the reinforcing material and has protrusions, and the number and shape of the protrusions can be appropriately changed. In addition, in the upper part from the base upper surface, all the protrusions may be excised. Moreover, the auxiliary | assistant material stored in one groove part may be what can be divided | segmented into two or more members. Further, the left and right auxiliary materials may have any configuration as long as the upper end position and the lower end position are different on the left and right sides, such as providing the same lengths in the left and right steps.

DESCRIPTION OF SYMBOLS 1 Support | pillar material 2 Reinforcement material 3 Auxiliary material 4 Foundation 21 Groove part 31 Protrusion 32 Cut part S Foundation upper surface

Claims (4)

  It is provided with a strut material, a reinforcing material, and left and right auxiliary materials, the reinforcing material has a left and right groove portion with a cross-section H shape, and is erected with the lower end portion embedded in the foundation, It has a cylindrical shape and is fixed over the reinforcing material, and the auxiliary material is inserted at a position straddling the top and bottom surfaces of both grooves of the reinforcing material, and the side surface of the auxiliary material is flush with the opening end of the groove. A pillar having protrusions extending vertically.   The strut according to claim 1, wherein a cut portion is formed by partially cutting the protrusion of the auxiliary material, and the cut portion is located immediately below the upper surface of the foundation.   The strut according to claim 1 or 2, wherein the upper and lower end positions of the left and right auxiliary members are different from each other.   A structure comprising the support according to claim 1, 2 or 3.

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