JP2020180508A - Handrail support column support tool - Google Patents

Abstract

To provide a handrail support column support tool capable of being easily mounted on a beam reinforcement assembly body assembled using beam main reinforcements and stirrup reinforcements.SOLUTION: A handrail support column support tool 10 includes: a base plate 11 disposed on a plurality of stirrup reinforcements 32; and an abutting plate 13 that is arranged along the base plate 11 in a direction crossing a plurality of beam main reinforcements 31 arranged below the stirrup reinforcements 32 to be made to abut on the beam main reinforcements 31. The base plate 11 and the abutting plate 13 are fastened by a plurality of screw members passing through a gap between stirrup reinforcements 32 adjacent to each other. A handrail member is mounted on a handrail support column 33 supported by the handrail support column support tool 10 mounted on a beam reinforcement assembly body 30 so as to be adjacent to each other.SELECTED DRAWING: Figure 2

Description

The present invention relates to a handrail strut support that is attached to a beam reinforcing bar assembly to support a handrail strut.

Buildings such as commercial facilities and office buildings are constructed with reinforced concrete skeleton structures. The skeleton structure has a skeleton column that supports the steel column of the building, a skeleton beam that is horizontally connected to the skeleton column, and a floor slab that is attached to the skeleton beam. In order to construct such a skeleton structure, a column reinforcing bar assembly constituting a skeleton column, a beam reinforcing bar assembly constituting a skeleton beam, and a slab reinforcing bar assembly constituting a floor slab are assembled. A formwork is arranged in each reinforcing bar assembly, concrete is poured into the formwork, and a skeleton structure composed of concrete and the reinforcing bar assembly is constructed.

For example, the beam reinforcing bar assembly has a plurality of straight beam main bars and a plurality of frame-shaped stirrup bars bound to each beam main bar by a wire or the like. In this way, in order to place the formwork on the outside of the beam reinforcing bar assembly assembled by the beam main bar and the stirrup bar, and to pour concrete into the formwork, the operator is on the beam reinforcing bar assembly. May climb and run.

Handrails and main ropes must be attached to the beam reinforcement assembly so that workers can work safely on the beam rebar assembly, and the handrails and main ropes are attached to temporary handrail columns. .. Patent Document 1 describes a master rope strut that is provided with a master rope holding metal fitting at the upper end and is attached to a flange portion of a steel beam, and the master rope strut is a handrail for supporting the master rope as a handrail member. It constitutes a support.

Japanese Unexamined Patent Publication No. 2013-227793

Patent Document 1 describes a master rope strut in which a base plate is attached to a concrete member with bolts, and a master rope strut in which a U-shaped curved portion fitted into a flange portion of a steel beam is provided. Are listed. As described above, the main rope support that is attached to the flange portion of the steel frame beam cannot be directly attached to the beam reinforcing bar assembly. This is because the beam reinforcing bar assembly, which is composed of the beam main bar and the stirrup bar and has a skeleton structure, has gaps or gaps.

As the handrail strut, there are not only a master rope strut for supporting the master rope but also a handrail strut for supporting a rod-shaped handrail single pipe. Even with such a handrail strut, it could not be easily attached to the beam reinforcing bar assembly.

An object of the present invention is to provide a handrail strut support that can be easily attached to a beam reinforcing bar assembly assembled by a beam main bar and a stirrup bar.

The handrail strut support of the present invention is a handrail strut support that is attached to a beam reinforcing bar assembly composed of a plurality of beam main bars and a plurality of frame-shaped stirrup bars bound to the beam main bars to support the handrail strut. There are a base plate arranged on a plurality of the stirrup bars, a support member provided on the base plate and provided with a handrail attachment for supporting the handrail strut, and below the stirrup bars. A butt plate arranged along the base plate in a direction crossing a plurality of arranged beam main bars and abutted against the beam main bars and a gap between adjacent stirrup bars are penetrated, and the base plate and the said The handrail member is attached to the handrail strut which has a plurality of screw members for fastening the abutting plate and is supported by the handrail strut support which is mounted adjacent to the beam reinforcing bar assembly.

The handrail strut support for supporting the handrail strut is provided along the base plate in a direction crossing the base plate arranged on the plurality of stirrup bars and the multiple beam main bars arranged under the stirrup bars. It has an abutting plate that is arranged and abutted against the beam main bar. When the base plate is placed on the stirrup bars of the beam rebar assembly and the base plate is fastened to the abutt plate with screw members, the handrail strut support is securely fixed to the beam rebar assembly. As a result, by attaching the handrail support to the support member of the handrail support, and attaching the handrail member to the handrail support, the handrail member can be easily attached to the beam reinforcing bar assembly, and a force is applied to the handrail member. Also, the handrail column can be reliably held by the beam reinforcing bar assembly.

(A) is a front view showing a handrail strut support according to one embodiment, and (B) is a right side view of (A). It is a perspective view which shows the handrail strut support attached to the beam reinforcing bar assembly. It is an exploded perspective view of the handrail support support shown in FIG. It is a front view which shows the handrail support support attached to the beam reinforcing bar assembly. It is a front view which shows the state which the handrail single pipe is attached to the handrail support support attached to the beam reinforcing bar assembly. (A) is a front view showing a handrail strut support according to another embodiment, and (B) is a right side view of (A). It is an exploded perspective view of the handrail support support shown in FIG. It is a perspective view which shows the state which the handrail support support shown in FIG. 6 is attached to a beam reinforcing bar assembly.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The handrail support support 10 is attached to the beam reinforcing bar assembly 30 as shown in FIGS. 2 to 4. As shown in FIG. 2, the beam reinforcing bar assembly 30 has a plurality of straight beam main bars 31, and in FIG. 2, the lowermost four beam main bars 31 (a) and the uppermost beam main bar 31 (a). The four beam main bars 31 (b) and the two left and right beam main bars 31 (c) in the middle stage are shown. The code a is shown in parentheses on the lowermost beam main bar 31, the code b is shown in parentheses on the uppermost beam main bar 31, and the code c is shown in parentheses on the middle beam main bar 31. ing. A plurality of beam main bars constituting the intermediate step are provided between the lowermost step and the uppermost step, but the beam main bar 31 of the other intermediate step is omitted. In FIG. 5, the beam main bar in the middle stage is omitted.

All the beam main bars 31 are arranged in the range of the quadrilateral in the cross section, and a plurality of frame-shaped stirrup bars 32 are arranged so as to cover the outside of the quadrilateral formed by all the beam main bars 31. It is bound to the beam main bar 31 by a wire or the like (not shown).

The beam reinforcing bar assembly 30 shown in FIGS. 2 and 5 is attached to the column reinforcing bar assembly constituting the skeleton column, and the slab reinforcing bar assembly constituting the floor slab is attached to the beam reinforcing bar assembly 30. A formwork is arranged in each reinforcing bar assembly, and concrete is poured into the formwork to construct a skeleton structure composed of concrete and the reinforcing bar assembly. When a worker rides on the beam reinforcing bar assembly 30 to perform various operations, such as when arranging a formwork on the outside of the beam reinforcing bar assembly 30, the beam reinforcing bar is as shown in FIG. The handrail support 10 is mounted on the assembly 30. As shown in FIGS. 1 and 2, a handrail support 33 is attached to the handrail support 10, and the handrail support 33 is supported by the handrail support 10.

The handrail strut support 10 has a substantially quadrilateral base plate 11, and the base plate 11 has a plurality of stars as shown in FIG. 2 when the handrail strut support 10 is mounted on the beam reinforcing bar assembly 30. It is placed on the lap muscle 32. In FIG. 2, the base plate 11 has a length dimension in the direction along the beam main bar 31 so as to be arranged on the four stirrup bars 32, and is about 2 minutes of the width dimension of the beam reinforcing bar assembly 30. It has a width dimension of about 1. As shown in FIGS. 2 and 4, the base plate 11 is arranged close to one side of the beam reinforcing bar assembly 30, and in the arranged state, one side of the base plate 11 is the side of the beam reinforcing bar assembly 30. It sticks out more than the sides.

A tubular member as a support member, that is, a sheath tube 12, is attached to the base plate 11, and the sheath tube 12 is displaced toward the protruding side of the base plate 11. Abutment plates 13 extending in a direction crossing a plurality of uppermost beam main bars 31 arranged under the stirrup bar 32 are arranged along the base plate 11 and thrust against the lower surface of the uppermost beam main bars 31. You can guess.

As shown in FIG. 3, the base plate 11 is provided with a mounting hole 14a at a position closer to the protruding side in the central portion in the length direction, and is opposite to the mounting hole 14a via the sheath pipe 12. Two mounting holes 14b and 14c are provided on the side. These three mounting holes 14a to 14c are provided at positions of radial lines extending in the radial direction from the center of the sheath tube 12. The abutting plate 13 is provided with three through holes 15a to 15c corresponding to the three mounting holes 14a to 14c. As shown in FIG. 4, nuts 16a to 16c are welded to the lower surface of the abutting plate 13 corresponding to the through holes 15a to 15c, respectively.

The first bolt 17a inserted into the mounting hole 14a as the first mounting hole is screwed to the nut 16a, and the second bolt 17b inserted into the mounting hole 14c as the second mounting hole is connected to the nut 16c. It is screwed. The bolts 17a and 17b penetrate the gap between the adjacent stirrup muscles 32. In this way, the base plate 11 is fastened to the abutting plate 13 by a plurality of screw members composed of bolts and nuts, and the stirrup bar 32 and the beam main bar 31 are strongly tightened between the base plate 11 and the abutting plate 13. Be done. As shown in FIG. 4, the abutting plate 13 is set to a dimension longer than the width dimension of the beam reinforcing bar assembly 30, and is abutted against the four uppermost beam main bars 31. The number of bolts is not limited to two, and three or more bolts may be attached.

As shown in FIGS. 3 and 4, the base plate 11 is displaced to one side of the beam rebar assembly, allowing the operator to travel on the other side. The bolt 17a extends outside the uppermost beam main bar 31, and the bolt 17b extends between the middle four of the uppermost four beam main bars 31. There are many types of beam main bars 31 forming one step, such as the uppermost beam main bar 31, depending on the size of the beam reinforcing bar assembly 30 and the like. Therefore, when the bolt 17b is attached to the attachment hole 14c, the beam main bar 31 may interfere with the bolt 17b. In that case, the bolt 17b is attached to another mounting hole 14b provided in advance, and the bolt 17b is screwed to the nut 16b.

In this way, the base plate 11 is fastened to the abutting plate 13 with two bolts 17a and 17b, but both plates may be fastened with two or more bolts.

The handrail support 33 shown in FIGS. 1 and 2 includes a support base 34 inserted into the sheath pipe 12 as a support member, and a support tip 35 inserted into the inside of the support base 34 so as to be movable in the axial direction. ing. The support column base 34 is fixed to the sheath pipe 12 by a set screw 18 provided on the sheath pipe 12. A clamper 36 is provided as a handrail attachment tool on the support column tip 35, and a handrail single tube 37 as a handrail member is attached to the support column tip 35 by the clamper 36. In order to adjust the vertical position of the handrail single pipe 37, a plurality of position adjusting holes 38 are provided in the support column tip portion 35 at intervals in the axial direction, and the support column base portion 34 penetrates the position adjustment holes 38. A positioning pin 39 that comes into contact with the tip surface is provided on the support column base 34. In this specification, as shown in FIG. 2, the vertical relationship of the members is shown with reference to the state in which the handrail support 10 is attached to the beam reinforcing bar assembly 30.

Next, a procedure for mounting the handrail single pipe 37 as a handrail member to the beam reinforcing bar assembly 30 by using the handrail support tool 10 will be described.

As shown in FIGS. 3 and 4, the base plate 11 is arranged on the stirrup bar 32, and the abutting plate 13 is abutted against the lower side of the beam main bar 31 so as to be along the base plate 11. Under this condition, the bolt 17a is inserted into the mounting hole 14a and screwed to the nut 16a, and the bolt 17b is inserted into the mounting hole 14c and screwed to the nut 16c. As a result, the handrail support tool 10 can be fastened to the beam reinforcing bar assembly 30 having a large number of gaps.

As shown in FIG. 5, a plurality of handrail strut supports 10 are attached to the beam reinforcing bar assembly 30 at predetermined intervals, and the handrail strut 33 is attached to each handrail strut support 10 with a set screw 18. The handrail support 33 is fixed to the sheath pipe 12. Next, the handrail single tube 37 is attached to the clamper 36 provided at the upper end of the handrail support 33. As a result, as shown in FIG. 5, the handrail single tube 37 is attached to the handrail support 33 attached to the handrail support support 10. As shown in FIG. 2, the handrail column 33 is arranged on one side in the width direction of the beam reinforcing bar assembly 30, so that the operator can travel on the other side in the width direction.

The handrail strut 33 is attached to the handrail strut support 10 firmly fastened to the beam rebar assembly 30, the handrail single pipe 37 is securely attached to the beam rebar assembly 30, and the operator is the beam rebar assembly. You can work safely on 30. Instead of the handrail single pipe 37, a main rope can be attached to the upper end of the handrail support 33 as a handrail member.

6 to 8 show a handrail strut support 10 according to another embodiment. In these figures, the members common to the handrail support support 10 described above are designated by the same reference numerals.

In the handrail support tool 10, a support base 21 is attached to the base plate 11 as a support member. The support base 21 includes a horizontal base plate 22 and leg portions 23 integrated at both ends thereof, and the lower surface of the leg portions 23 is fixed to the base plate 11. The support base 21 has a gate shape, and a clamp material accommodating space 24 is provided under the horizontal base plate 22.

The base plate 11 is provided with three mounting holes 14a to 14c as described above, and the abutting plate 13 is fastened to the base plate 11 by two bolts 17a and 17b. Therefore, the structure of the base plate 11 and the abutting plate 13 fastened to the base plate 11 is the same as that described above, and while the sheath pipe 12 is attached to the base plate 11 described above as a support member, it is shown in FIG. A support base 21 is attached to the base plate 11 as a support member.

A handrail support 41 is attached to the support base 21. The handrail column 41 is made of a column member having a quadrangular cross section, and a hook 42 as a handrail attachment for supporting the handrail member is provided at the upper end portion. As shown in FIGS. 6 and 8, the hook 42 has two hook pieces 42a and 24b having openings in opposite directions, and the two hook pieces 42a and 42b form FIG. 6A. As shown in, a circular master rope guide hole 43 is formed. The master rope 44 is hooked on the hook 42 by passing the master rope 44 as a handrail member through the master rope guide hole 43 formed by the hook pieces 42a and 42b, respectively. A connecting plate 45 is provided at the upper end of the handrail support column 41, and the main rope may be connected to the engaging hole 46 provided in the connecting plate 45.

Two fastening plates 51 are attached to the lower end of the handrail support column 41, and the fastening plate 51 is a clamp piece that enters the clamp material accommodating space 24 of the support base 21 and is abutted against the inner surface of the horizontal base plate 22. 52 is provided. Two nuts 54 are attached to the connecting member 53 connected to the two fastening plates 51, the bolts 55 are screwed to the respective nuts 54, and the clamp tool is composed of the bolts 55 and the clamp piece 52. There is. The handle 47 is attached to the handrail support 41, and the handle 47 is used when the operator carries the handrail support 41. Therefore, the handrail support column 41 is fastened to the support base 21 by the bolt 55 and the clamp piece 52 by tightening the bolt 55 as a clamp tool to the horizontal base plate 22.

When the handrail support column 41 is attached to the support base 21, the handrail support column 41 is inclined in a direction in which the upper end portion thereof protrudes outward from the side side of the beam reinforcing bar assembly 30, as shown in FIG. 6A. By inclining the handrail column 41 in this way, the operator can easily travel on the beam reinforcing bar assembly 30.

Any form of the handrail strut support 10 can be easily attached to the beam reinforcing bar assembly 30 having a skeleton structure with a gap, and the construction work of the reinforced concrete skeleton structure can be smoothly performed.

The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the gist thereof.

10 Handrail support support 11 Base plate 12 Scabbard pipe (support member)
13 Abutt plate 14a to 14c Mounting holes 15a to 15c Through holes 16a to 16c Nuts 17a, 17b Bolt 21 Support base (support member)
22 Horizontal base plate 23 Legs 24 Clamp material storage space 30 Beam reinforcement assembly 31 Beam main reinforcement 32 Stirrup reinforcement 33 Handrail support 34 Support base 35 Support tip 36 Clamper (handrail attachment)
37 Handrail single pipe (handrail member)
41 Handrail support 42 Hook (handrail fixture)
44 Main rope (handrail member)
51 Fastening plate 52 Clamp piece 54 Nut 55 Bolt (clamp tool)

Claims (6)

A handrail strut support tool that is attached to a beam reinforcing bar assembly consisting of a plurality of beam main bars and a plurality of frame-shaped stirrup bars bound to the beam main bars to support the handrail strut.
A base plate placed on the plurality of stirrup muscles and
A support member provided on the base plate and provided with a handrail attachment for supporting the handrail support, and a support member.
An abutting plate arranged along the base plate in a direction crossing a plurality of beam main bars arranged under the stirrup bar and abutted against the beam main bar,
It has a plurality of screw members that penetrate the gap between the adjacent stirrup bars and fasten the base plate and the abutting plate.
A handrail strut support to which a handrail member is attached to the handrail strut supported by a handrail strut support mounted adjacent to the beam reinforcing bar assembly. In the handrail strut support according to claim 1,
The handrail strut includes a strut base and a strut tip portion that is axially movably inserted into the strut base and to which the handrail member is mounted.
The support member is a handrail support tool, which is a sheath pipe into which the support base is inserted. In the handrail strut support according to claim 1,
The handrail strut is provided with a handrail attachment for supporting the handrail member at the upper end portion, and a clamp tool for being fastened to the support member at the lower end portion.
The support member is a handrail support tool which is a support base on which the clamp tool is fastened. In the handrail strut support according to any one of claims 1 to 3,
The handrail member is a handrail supporter, which is a single handrail tube or a main rope. In the handrail strut support according to any one of claims 1 to 4.
The screw member is a handrail strut support which is a nut welded to the abutt plate and a bolt which is inserted into a mounting hole formed in the base plate and screwed to the nut. In the handrail strut support according to claim 5,
A first bolt inserted into the first mounting hole formed on one side of the support member on the base plate, and a second bolt formed on the base plate located on the opposite side of the support member. A handrail strut support having a second bolt inserted into the mounting hole of the.

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