JP6952304B2 - Mounting structure of handrail support and its mounting method - Google Patents

Description

The present invention relates to a structure for attaching handrail struts such as a fall prevention handrail attached to a balcony of an apartment, a walking assistance handrail attached to a walking passage in a hospital or a nursing facility, and a method for attaching the handrail stanchion. be.

Handrail struts such as fall prevention handrails and walking assistance handrails are used by combining a core material for the purpose of maintaining strength and struts used for the purpose of connecting with other members and surface makeup. Normally, both the strut and the core material are hollow pipe-shaped, the upper end of the strut is fixed to the cap tree, the lower end is inserted into the mounting hole provided in the concrete skeleton, and the gap is fixed with mortar.

Generally, since the handrail is exposed to the external environment for a long time after installation, water stays inside the column due to conditions such as wind and rain, snow accretion, and temperature difference. The stagnant water infiltrates the concrete skeleton and causes cracks, or freezes and expands, causing problems such as explosive destruction of columns and concrete skeleton.

Therefore, conventionally, in order to attach the handrail support, an insertion hole for inserting an anchor bolt is provided at a protruding edge portion erected at the end of the concrete skeleton. Anchor bolts are used by bundling two rods made of reinforcing bars so as to be joined to the insertion holes, and aluminum tape is wrapped around the upper surface of the ridge portion at a height position to form the bundling. Then, the reinforcing core material to be inserted into the handrail column is formed by extrusion molding in a hollow space between the anchor bolt and the anchor bolt, and the space is filled with an adhesive such as non-shrink mortar to form the anchor bolt and the reinforcing core material. After being integrated in advance with a cured adhesive, the anchor bolts are inserted into the insertion holes at the ridges. Further, a reinforcing core material is erected by filling the insertion hole with an adhesive and hardening the insertion hole, and a handrail strut is inserted into the reinforcing core material and fixed to the ridge of concrete (Patent Document 1). ).

That is, the method of attaching the handrail support is based on the outline of adding anchor bolts (metal rods) to the core material, embedding them in the concrete skeleton, and fixing them with an adhesive.

Further, as a conventional handrail support mounting structure, the support mounting base material is fixed to an anchor metal fitting provided at the bottom of a support mounting hole formed in a weir wall such as a veranda. The lower end of the cylindrical handrail strut is fitted onto the strut mounting base material, and a grout material is injected into the strut mounting hole of the weir wall to fix the handrail strut to the strut mounting base material. Next, when a long hole for pouring grout material is provided at the lower end of the handrail support and the lower end of the handrail support is fitted onto the support base material, the upper end of the long hole of the handrail support is a weir wall. The handrail strut is fitted onto the strut mounting base material so as to be located above the upper surface. Then, the upper surface level of the grout material injected into the column mounting holes and solidified is made to be substantially flush with the upper surface of the weir wall inside and outside the handrail column (Patent Document 2).

That is, this handrail strut mounting structure creates holes and gaps in the strut mounting base material (core material) and the strut for pouring the grout material (filler), and the filler can be filled into the pipe and drained when the strut is mounted. The outline is to make such a mechanism.

Japanese Patent No. 4440136 Japanese Patent No. 5816637

However, the conventional method of attaching the handrail column shown in Patent Document 1 is a very effective method for draining water inside the column, but it is threaded to attach a thin metal rod such as an anchor bolt. It has a problem that it needs to be processed by welding or welding, and its strength is weak because it embeds a material thinner than the core material.

Further, in the conventional mounting structure of the handrail strut shown in Patent Document 2, water is retained by injecting a highly fluid filling with a pump through a drainage hole made in the handrail at the site after the handrail construction. However, there is a problem that sufficient curing must be performed because it is difficult to adjust the injection amount and the filling material may overflow and adhere. In addition, there is a risk that the filler will not spread inside the columns and a space will be created, it will take time for the filler to enter every corner, and it will have to be filled each time the level of the filler drops, and it will be filled. There was a problem that it was difficult to maintain the quality because it had to be applied before the viscosity of the agent increased.

Therefore, the present invention solves the above-mentioned conventional problems, and provides a structure for mounting a handrail strut and a method for mounting the handrail strut, which are excellent in mounting strength, easy to maintain quality, and do not take time to cure. It was made for the purpose of providing.

Therefore, in the mounting structure of the handrail support of the present invention , the adhesive S is stored in the lower part of the hollow core material 1 whose lower end is closed, and the metal pillar 2 is dropped from above the core material 1 to the side of the metal pillar 2. By solidifying the adhesive S so that the gap between the peripheral surface and the lower inner wall of the core material 1 and the upper surface of the metal pillar 2 are filled with the adhesive S, the metal is formed without a gap in the lower inner wall of the core material 1. The pillar 2 is fixed, the lower portion 1a of the core material 1 is projected below the handrail support column 3, the core material 1 is fixed to the handrail support column 3, and the metal column 2 of the core material 1 is fixed. The lower portion 1a of the fixed portion is embedded in the column mounting hole 4 provided in the concrete skeleton F.

In the mounting structure of the handrail column of the present invention, the core material 1 is provided with a drain hole h so as to cover the upper surface of the metal column 2.

In the mounting structure of the handrail strut of the present invention, a gap G1 extending in the vertical direction is formed between the core material 1 and the handrail strut 3.

In the mounting structure of the handrail support of the present invention, a gap G2 is formed between the lower end of the handrail support 3 and the concrete floor F.

Further, in the method of attaching the handrail column of the present invention , the adhesive S is stored in the lower part of the hollow core material 1 whose lower end is closed, and the metal column 2 is dropped from above the core material 1 except at the attachment site of the handrail column. Then, the gap between the side peripheral surface of the metal pillar 2 and the lower inner wall of the core material 1 and the upper surface of the metal pillar 2 are filled with the adhesive S, and the adhesive S is solidified to form a gap in the lower inner wall. A core material 1 to which the metal pillar 2 is fixed is manufactured, and the lower portion 1a of the portion to which the metal pillar 2 of the core material 1 is fixed is projected below the handrail support 3 at the installation site of the handrail support. Then, the core material 1 is fixed to the handrail support column 3, and the lower portion 1a of the portion where the metal column 2 of the core material 1 is fixed is inserted into the support column mounting hole 4 provided in the concrete skeleton F, and the support column is inserted. The mounting hole 4 is filled with the filler M and cured.

In the method of attaching the handrail support according to the present invention, a gap G2 is formed between the lower end of the handrail support 3 and the concrete floor F.

The present invention is configured as described above, and since the metal pillar 2 is fixed to the lower inner wall of the core material 1 without a gap, the mounting strength is excellent.

Further, the invention is not to be exposed surface of the metal column 2, anticorrosion treatment such as plating on the metal column 2 is not required, becomes easy to maintain the quality.

Further, in the present invention, the strength can be adjusted by changing the material and length of the metal pillar 2 fixed to the lower part of the core material 1, so that the strength can be easily adjusted to meet the demands of the site. Can be done.

Further, in the present invention, it is not necessary to perform the work of fixing the metal pillar to the lower part of the core material at the site, and this work may be performed at the stage of shipping from the factory, so that the work (construction) time at the site can be reduced. Can be shortened.

Further, in the present invention, since it is only necessary to fill the support column mounting hole 4 provided in the concrete skeleton F with the filler M, the injection amount can be easily adjusted, the filler does not overflow, and the quality can be easily maintained. It will be something like that.

It is a vertical cross-sectional view which shows one Embodiment of the attachment structure of the handrail support of this invention. An embodiment of the core material used for the mounting structure of the handrail strut of the present invention is shown, (a) is a vertical sectional view of the core material, and (b) is a cross-sectional view of the core material. Other embodiments of the core material used for the mounting structure of the handrail strut of the present invention are shown, (a) is a vertical sectional view of the core material, and (b) is a cross-sectional view of the core material. Yet another embodiment of the core material used for the mounting structure of the handrail strut of the present invention is shown, (a) is a vertical sectional view of the core material, and (b) is a cross-sectional view of the core material. .. It is explanatory drawing which shows an example of the procedure of fixing a metal column to the lower part of the core material used for the attachment structure of the handrail column of this invention. It is explanatory drawing which shows another example of the procedure of fixing a metal column under the core material used for the attachment structure of the handrail column of this invention. It is a vertical cross-sectional view of the handrail used in the method of attaching the handrail support of this invention. It is a cross-sectional view of the handrail strut by the line AA in FIG. It is explanatory drawing of the attachment method of the handrail support of this invention.

Hereinafter, the mounting structure of the handrail strut of the present invention and the mounting method thereof will be described in detail with reference to the drawings.

In the handrail mounting structure of the present invention, as shown in FIG. 1, the metal pillar 2 is fixed to the lower inner wall of the hollow core material 1 without a gap, and the lower portion 1a of the portion where the metal pillar 2 of the core material 1 is fixed is fixed. However, the core material 1 is fixed to the handrail support 3 so as to project below the handrail support 3. Then, the lower portion 1a of the portion where the metal column 2 of the core material 1 is fixed is embedded in the column mounting hole 4 provided in the concrete skeleton F. Although not shown, the upper end of the handrail support 3 is covered with a cap tree or the like.

The core material 1 is formed of a metal such as aluminum or stainless steel in a tubular shape, and is formed in a substantially square tubular shape with rounded corners as shown in the figure. You can also do it. As shown in FIGS. 1 and 7, the core material 1 is provided with holes at arbitrary locations such as at the mounting site, and the handrail support column 3 is covered with the core material 1. Then, the height of the handrail strut 3 is adjusted by screwing a fixture B such as a screw or a bolt into the hole of the core material 1 from the screw hole provided in the handrail strut 3, and the core material 1 is adjusted. Is fixed to the handrail column 3. The core material 1 is provided with a drain hole h so as to cover the upper surface of the metal pillar 2. The drain hole h allows rainwater or the like that has entered the inside of the core material 1 to pass through and is discharged into the gap G1 between the core material 1 and the handrail support column 3, which will be described later.

The metal pillar 2 is formed of a metal such as iron, aluminum, or stainless steel in a flat plate shape or a rod shape, and may be a thick flat plate shape as shown in FIG. 2 or shown in FIG. As shown in FIG. 4, a plurality of thin flat plates 2a are laminated, or as shown in FIG. 4, a flat core 2b and a rod-shaped 2c are combined to form a hollow core material 1. It is firmly fixed to the lower inner wall without any gaps.

Then, in order to make the metal pillar 2 fixed to the lower inner wall of the core material 1 without a gap, the metal pillar 2 is formed to have a thickness one size smaller than the hollow portion of the core material 1, and the metal pillar 2 is formed. It is assumed that the side peripheral surface is adhered to the lower inner wall of the hollow core material 1 with the adhesive S without any gap. As a procedure for this adhesion, as shown in FIG. 5, the lower end of the core material 1 is closed by the plug body 5, and the adhesive S is poured into the hollow portion from above the core material 1 to apply the adhesive S. It is stored in the lower part of the core material 1, and the metal pillar 2 is dropped from above the core material 1. Then, the gap between the side peripheral surface of the metal column 2 and the lower inner wall of the core material 1 and the upper surface of the metal column 2 are filled with the adhesive S, and the adhesive S may be cured in this state until the adhesive S hardens. As the adhesive S, it is preferable to use an epoxy resin-based adhesive having excellent heat resistance and durability, but the adhesive S is not limited thereto. A cap (not shown) may be used to close the lower end of the core material 1.

Further, in order to make the metal pillar 2 fixed to the lower inner wall of the core material 1 without a gap, the metal pillar 2 is formed to have the same or slightly larger thickness as the hollow portion of the core material 1. As shown in FIG. 6, the pillar 2 may be pushed or driven from below the core material 2.

The handrail support column 3 is formed of a metal such as aluminum or stainless steel in a tubular shape, and is formed in a substantially square tubular shape as shown in the drawing. .. As shown in FIG. 8, a plurality of protrusions 6 are formed on the inner wall of the handrail support column 3 at intervals in the circumferential direction. When the handrail strut 3 is covered with the core material 1 and fixed, the protrusion 6 comes into contact with the outer surface of the core material 1, and the protrusion 6 causes the core material 1 and the handrail strut 3 to be in the vertical direction. An extending gap G1 is formed. The gap G1 allows rainwater or the like that has entered the inside of the core material 1 or the handrail support 3 to pass through.

The pillar mounting hole 4 is provided in a concrete skeleton F such as a veranda of an apartment, and a lower portion 1a of a portion to which the metal pillar 2 of the core material 1 is fixed is inserted and a filler M such as mortar is filled. By solidifying the filler M, the lower portion 1a of the core material 1 is embedded. In this case, a gap G2 is formed between the lower end of the handrail support column 3 and the concrete floor F. The gap G2 penetrates into the core material 1 and the handrail support column 3 so that rainwater or the like that has passed through the gap G1 is discharged to the outside.

By burying only the lower part 1a of the core material 1 in the support column mounting hole 4, the hole diameter of the support column mounting hole 4 is smaller than that in which the lower part of the handrail support column 3 is also embedded. It is possible to reduce the strength loss of the concrete skeleton F. Further, by reducing the hole diameter of the support column mounting hole 4, the degree of freedom in arranging the reinforcing bars for holding the concrete skeleton F is increased, and the concrete skeleton F can be reduced.

Therefore, in order to attach the handrail support column 3 to the support column mounting hole 4 provided in the concrete skeleton F such as a veranda by using the core material 1 in which the metal column 2 is fixed to the lower inner wall without a gap, the following is performed. conduct. Hereinafter, a method of attaching the handrail support of the present invention will be described.

First, a core material 1 in which a metal pillar 2 is fixed to the lower inner wall without a gap is manufactured as shown in FIGS. Transport to the installation site.

Then, at the installation site of the handrail support such as the veranda of the condominium, the lower portion 1a of the portion where the metal pillar 2 of the core material 1 is fixed is made to protrude below the handrail support 3, and the core material 1 is arbitrarily selected. After making a hole in the place, the handrail support column 3 is put on the core material 1. Then, the height of the handrail strut 3 is adjusted by screwing a fixture B such as a screw or a bolt into the hole of the core material 1 from the screw hole provided in the handrail strut 3, and the handrail strut 3 is adjusted. The core material 1 is fixed to.

Next, as shown in FIG. 9, the lower portion 1a of the portion where the metal column 2 of the core material 1 is fixed is inserted into the column mounting hole 4 provided in the concrete skeleton F, and the lower end of the handrail column 3 and concrete are inserted. As shown in FIG. 1, the support column mounting hole 4 may be filled with the filler M so as to form a gap G2 with the floor F, and the filler M may be cured until it hardens.

The mounting structure of the handrail strut of the present invention configured as described above is excellent in mounting strength because the metal pillar 2 is fixed to the lower inner wall of the core material 1 without any gap.

Further, in the mounting structure of the handrail column of the present invention, since the metal column 2 is fixed to the lower inner wall of the core material 1 without a gap , the surface of the metal column 2 is not exposed, and the metal column 2 is plated or the like. Anticorrosion treatment is not required, and it is easy to maintain the quality.

Further, the strength of the handrail column mounting structure of the present invention can be adjusted by changing the material and length of the metal column 2 fixed to the lower part of the core material 1, so that the strength can be adjusted according to the requirements of the site. Can be easily adjusted.

In the method of attaching the handrail support of the present invention, it is not necessary to perform the work of fixing the metal pillar 2 to the lower part of the core material 1 at the site, and this work may be performed at the stage of shipping from a factory or the like. The work (construction) time at the site can be shortened.

Further, in the method of mounting the handrail strut of the present invention, since it is only necessary to fill the strut mounting hole 4 provided in the concrete skeleton F with the filler M, the injection amount can be easily adjusted and the filler does not overflow. , It becomes easy to maintain the quality.

1 Core material 1a Lower part 2 Metal pillar 3 Handrail support 4 Support mounting hole F Concrete skeleton G1 Gap G2 Gap h Drain hole M Filler S Adhesive

Claims (6)

The adhesive (S) is stored in the lower part of the hollow core material (1) with the lower end closed, and the metal pillar (2) is dropped from above the core material (1) to drop the side peripheral surface of the metal pillar (2). The core material (1) is solidified by filling the gap between the lower inner wall of the core material (1) and the upper surface of the metal pillar (2) with the adhesive (S ). The metal pillar (2) is fixed to the inner wall of the lower part of the core material (1) without a gap, and the lower part (1a) of the core material (1) is projected below the handrail support (3). The lower part (1a) of the portion where the core material (1) is fixed to the core material (1) and the metal pillar (2) of the core material (1) is fixed to the pillar mounting hole (4) provided in the concrete skeleton (F). A mounting structure for handrail columns, which is characterized by being buried in. The mounting structure for a handrail support according to claim 1, wherein the core material (1) is provided with a drain hole (h) so as to cover the upper surface of the metal column (2). The mounting structure for a handrail strut according to claim 1, wherein a gap (G1) extending in the vertical direction is formed between the core material (1) and the handrail strut (3). The mounting structure for the handrail strut according to claim 1, wherein a gap (G2) is formed between the lower end of the handrail strut (3) and the concrete floor (F). The metal pillar (2) is dropped from above the core material (1) by accumulating the adhesive (S) in the lower part of the hollow core material (1) with the lower end closed , except at the installation site of the handrail support. The adhesive (S) is solidified so that the gap between the side peripheral surface of the pillar (2) and the lower inner wall of the core material (1) and the upper surface of the metal pillar (2) are filled with the adhesive (S). A core material (1) in which the metal pillar (2) is fixed to the lower inner wall without a gap is manufactured. The core material (1) is fixed to the handrail column (3) so that the lower portion (1a) protrudes below the handrail column (3), and the column mounting holes provided in the concrete skeleton (F). Insert the lower part (1a) of the portion where the metal column (2) of the core material (1) is fixed into (4), fill the column mounting hole (4) with the filler (M), and cure. A method of mounting a handrail column, which is characterized by being provided. The method for attaching a handrail support according to claim 5 , wherein a gap (G2) is formed between the lower end of the handrail support (3) and the concrete floor (F).

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