JP2008025317A - Reinforcing member equal arrangement method and reinforcing member equal arrangement tool in hollow column - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently reinforce an existing hollow column by arranging aramid rods equally in an easy and reliable manner in the erected state of the existing hollow column. <P>SOLUTION: This reinforcing member equal arrangement tool comprises an arm mounting base part 11 having a plurality of arm mounting parts at equal spaces on the outer peripheral side; a plurality of base side arm parts 13 mounted to the arm mounting parts of the arm mounting base part 11; an end side arm parts 15, 17 swingably connected to the respective proximal side arm parts 13 and having holding parts 25 for holding the reinforcing members; a suspension base part 19 having mounting parts for a plurality of weight suspension wires 21 at equal spaces on the outer peripheral side; and weights 23 connected to the other ends of the suspension wires 21 with one ends latched to the mounting parts of the weight suspension wires 21 of the suspension base part 19, via the tips of the end side arm parts 15, 17. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a reinforcing material uniform arrangement method and a reinforcing material uniform arrangement jig in a hollow column for performing reinforcement of hollow columns such as various steel pipe columns and concrete columns upright.

  A hollow column such as a steel pipe column or a concrete column is usually erected on the ground with a predetermined length of the base end of the hollow column buried in the ground.

  It has been pointed out that the strength of such a hollow column may deteriorate and decrease due to the installation environment of the hollow column or aging. For this reason, such hollow columns are regularly inspected, and are reinforced and replaced as appropriate. Moreover, when reinforcing a hollow pillar by inspection etc. without depending on replacement, it is common to concentrate mainly on the part close to the ground.

For example, in Patent Document 1, after inserting a plurality of aramid rods as reinforcing materials into the inside of the hollow column from the side opening formed on the side of the utility column about 1 m above the ground side of the concrete utility pole as the hollow column Place a plurality of aramid rods evenly with a jig, etc., and then, for example, bean gravel or crushed stone into the gap between these aramid rods, and then mortar, concrete, etc. To the vicinity of the side opening.
Japanese Patent Application No. 2003-24176

  As described above, in the conventional method for reinforcing a utility pole made of concrete, aramid as a plurality of reinforcements extends from the lowermost end of the hollow column to the vicinity of the side opening formed on the side of the utility pole about 1 m above the ground. The rods are evenly arranged and reinforced.

  However, since the side opening provided in the hollow column should not affect the strength of the hollow column in the first place, it has been constructed so as to be the minimum necessary opening. For this reason, the jig for evenly arranging the aramid rods housed inside the hollow column is extremely limited in size and configuration.

  In addition, the uniform arrangement of the aramid rod within the hollow column must be performed over the entire length of the aramid rod, but the uniform arrangement jig itself is inclined and arranged inside the hollow column due to a protrusion such as a slot inside the hollow column. There was also a possibility that it was.

  In an extreme example, this equal arrangement of aramid rods is desired to be equally arranged along the central axis of the hollow column as well, even in the case of a hollow column standing obliquely such as a column. It is rare.

  The present invention has been made in view of the above, and the object of the present invention is to arrange the aramid rods evenly and surely in a state where the existing hollow columns are erected, and thereby to install the existing hollow columns. An object of the present invention is to provide a reinforcing material uniform arrangement method and a reinforcing material uniform arrangement jig in a hollow column that can be efficiently reinforced.

  In order to solve the above problems, the reinforcing member equalizing method according to claim 1 is a state in which a hollow column having a hollow portion is erected, and the hollow column is reinforced by a plurality of rod-shaped reinforcing members. Reinforcement material equal placement method for hollow pillars when performing reinforcement for inserting a plurality of reinforcement members, and reinforcing material uniform placement jigs to be distributed from the side openings provided on the side surfaces of the hollow columns The jig center placement jig insertion step for inserting the jig center placement jig for placing the reinforcing material uniform placement jig at the center position of the hollow column. The reinforcing material uniform arrangement jig and the jig central arrangement jig are arranged through a rod-shaped shaft member that passes through the process, the reinforcing material uniform arrangement jig, and the jig center arrangement jig. A jig connecting step for connecting, and After the center position is arranged at the center position of the hollow column by the jig center arrangement jig and the plurality of reinforcing materials are arranged uniformly by the reinforcing material uniform arrangement jig, the filler is introduced from the side opening. The gist is to fix the reinforcing material.

  According to the reinforcing member uniform arrangement method according to claim 1, it is possible to arrange the reinforcing member uniform arrangement jig for uniformly arranging the reinforcing member at the center position of the hollow column by the jig center arrangement jig. Therefore, it becomes possible to arrange the reinforcing material more evenly inside the hollow column.

  The reinforcing material uniform arrangement method according to claim 2 is a reinforcing material uniform arrangement method in a hollow column when reinforcing the hollow column in a state where the hollow column having a hollow portion therein is erected. An opening forming process for forming a side opening on the side surface of the hollow column provided, a reinforcing material inserting step for inserting a plurality of rod-shaped reinforcing materials into the hollow column from the side surface opening, and swinging the plurality of reinforcing materials Reinforcement material uniform placement jig insertion step for inserting a reinforcement material uniform placement jig to be held and distributed by a holding portion provided on a free arm portion from the side opening while the arm portion is folded, and expandable A jig center placement jig for placing the reinforcing material uniform placement jig at the center position of the hollow column by unfolding the arm portion provided on the side is inserted from the side opening with the arm portion closed. And a jig disposed below the reinforcing material uniform arrangement jig Centering jig insertion step, reinforcing material uniform placement jig and jig center placement jig through a shaft member penetrating so as to be orthogonal to the reinforcing material uniform placement jig and jig center placement The jig connecting step for connecting the jig and the arm part of the jig center arrangement jig are deployed so that the center position of the jig for uniformly arranging the reinforcing material is arranged at the center position of the hollow column and the reinforcement is performed. A reinforcing material fixing step of expanding the arm portion of the jig for evenly arranging the materials and arranging the plurality of reinforcing materials held by the holding portion evenly and then inserting the filler from the side opening to fix the reinforcing material; And a step of closing the side opening.

  According to the reinforcing member uniform arrangement method according to claim 2, it is possible to arrange the reinforcing member uniform arrangement jig for uniformly arranging the reinforcing member at the center position of the hollow column by the jig center arrangement jig. Therefore, it becomes possible to arrange the reinforcing material more evenly inside the hollow column.

  According to a third aspect of the present invention, there is provided the reinforcing member equalizing method according to the second aspect, wherein the reinforcing member equalizing jig is provided in an unfoldable state. When it is folded and the suspended state is released, the gist is to unfold the arm.

  In the reinforcing material uniform arrangement method according to claim 3, when the reinforcing material uniform arrangement jig is in a suspended state, the arm portion is folded, and when the suspended state is released, the arm portion is expanded by its own weight. It becomes possible to greatly improve the workability when the reinforcing members are evenly arranged.

  According to a fourth aspect of the present invention, there is provided a reinforcing member equalizing method in which the jig center arranging jig according to any one of the second and third aspects is deployed by its own weight of the arm portion.

  According to the reinforcing member uniform arrangement method according to claim 4, since the jig center arrangement jig is deployed by its own weight, it is possible to greatly improve workability when the reinforcing material is arranged evenly. Become.

  The jig for evenly arranging a reinforcing material according to claim 5 is a reinforcement in a hollow column when the hollow column is reinforced by a plurality of rod-shaped reinforcing materials in a state where a hollow column having a hollow portion is erected. A jig for uniform material placement, an arm mounting base having a plurality of arm mounting portions at equal intervals on the outer peripheral side, and a plurality of base side arm portions mounted on the arm mounting portion of the arm mounting base An end side arm portion that is swingably connected to each of the base side arm portions and has a holding portion for holding the reinforcing material, and an attachment portion for a plurality of weight suspension wires at equal intervals on the outer peripheral side A suspension base having a suspension base, and a suspension wire attached to a weight suspension wire attachment portion, the other end of the suspension wire being connected to the other end of the suspension arm via the tip of the end arm portion. The main point is to have a weight.

  According to the jig for evenly arranging the reinforcing material according to claim 5, the jig for arranging the reinforcing material evenly arranging the reinforcing material can be arranged at the center position of the hollow column by the jig for arranging the center of the jig. Since it becomes possible, it becomes possible to arrange | position a reinforcing material more uniformly in a hollow pillar inside.

  The reinforcing material uniform arrangement jig according to claim 6 folds the arm portion provided in a freely deployable manner when the reinforcing material uniform arrangement jig is in a suspended state, and the arm when the suspended state is released. The main point is to develop.

  In the reinforcing material uniform arrangement jig according to claim 6, when the reinforcing material uniform arrangement jig is in a suspended state, the arm portion is folded, and when the suspended state is released, the arm portion is expanded by its own weight. Therefore, the workability when the reinforcing members are evenly arranged can be greatly improved.

  The reinforcing material uniform arrangement jig according to claim 7, wherein the base side arm portion according to any one of claims 5 and 6 is configured by a plurality of plate-like members, and the plate-like member has an elongated hole. The gist is to change the arm length of the base side arm portion by changing the configuration of the plurality of plate-like members.

  The jig for evenly arranging a reinforcing member according to claim 7 is configured by a plurality of plate-like members in which the base side arm portion is provided with an elongated hole. By changing the arm length of the arm portion, it becomes possible to correspond to the inner diameter of any hollow column.

  The reinforcing material uniform arrangement jig according to claim 8, wherein the base side arm portion according to any one of claims 5 to 7 has a protruding portion that restricts downward swinging of the end side arm portion at the tip end portion. It is summarized as having.

  Since the downward swinging of the end side arm portion is restricted, the reinforcing material uniform arrangement jig according to claim 8 releases the suspended state when the reinforcing material uniform arrangement jig is suspended. It becomes possible to make the operation of the end side arm portion smooth when it is done.

  In the reinforcing material uniform arrangement jig according to claim 9, the end-side arm portion according to any one of claims 5 to 8, further comprising an end-side upper arm portion and an end-side lower collar portion, The end-side upper arm is swingably connected at a position slightly closer to the arm mounting base than the tip of the base-side arm, and the end-side lower collar is provided at the tip of the base-side arm. The weight suspension wire is swingably connected to a protruding portion that restricts the downward swing of the end side upper arm portion, and the weight suspension wire has one end hooked to the suspension base portion and the other end to the end side upper arm. The gist is to be connected to the weight via the tip of the part and the tip of the lower end of the end side.

  In the jig for evenly arranging a reinforcing material according to claim 9, since the end side arm portion is composed of the end side upper arm portion and the end side lower collar portion, the weight suspension wire is smoothly fed out. As a result, the base-side arm, the end-side upper arm, and the end-side lower collar are more smoothly deployed.

  The reinforcing material equalizing jig according to claim 10 is characterized in that the end side arm portion according to any one of claims 5 to 8 has an arm length longer than an arm length of the base side arm portion. And

  In the jig for evenly arranging reinforcing members according to claim 10, since the arm length of the end side arm portion is longer than the arm length of the base side arm portion, the end side arm portion is swung and jumped upward. As a result, it is possible to increase the maximum radius during deployment while reducing the minimum radius of the reinforcing material uniform arrangement jig.

  According to the present invention, when a reinforcing material such as a mortar and an aramid rod is reinforced by injecting a reinforcing material such as a mortar and an aramid rod into the hollow portion of an existing standing hollow column, the aramid rod is reliably and easily disposed evenly. It is possible to provide a reinforcing material uniform arrangement method and a reinforcing material uniform arrangement jig in a hollow column that can efficiently reinforce the structure.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a flowchart for explaining a processing procedure of a reinforcing material uniform arrangement method in a hollow column according to the present invention, and FIG. 2 is a diagram showing a configuration in one embodiment of a reinforcing material uniform arrangement jig. The hollow columns include various types of steel tube columns (steel columns without taper, panzer mast with taper (steel assembly column)) and concrete columns (electric columns with taper and concrete columns without taper).

  First, with reference to FIG. 2, the structure of the reinforcing material uniform arrangement jig 10 will be described.

  The schematic configuration of the jig 10 for evenly arranging the reinforcing members includes an arm mounting base 11, eight base side arm portions 13 attached to the arm mounting base portion 11, and arms of the eight base side arm portions 13. An end-side upper arm 15 that is swingably provided in the vicinity of the tip opposite to the mounting base 11, a tip of the eight base-side arms 13, and a lower side of the end-side upper arm 15, The arm member 13, 15, 17 is hooked on the end side lower brim part 17 provided so as to be swingable and the base side end part, which is one end part of the weight suspension wire 21, with a sleeve. And a weight 23 that is attached to the end of the weight suspension wire 21 opposite to the base side by a sleeve.

  Hereafter, each structure mentioned above is demonstrated in detail.

  First, the arm attachment base 11 has a cylindrical shape having a hole having substantially the same diameter as that of the shaft member 31 in which a shaft member 31 (to be described later) can be slidably fitted in a central portion, and is formed of three disc-shaped metals. Members (for example, steel materials) are laminated and created. The upper and lower disks are screwed to the center disk, and eight slits are formed at equal intervals on the outer periphery of the cylindrical member sandwiched between them. Since the thickness (height) of this cylindrical member is formed slightly thinner (lower) than the thickness (height) of the base-side arm 13, the end of the base-side arm 13 is inserted into the slit. The base side arm portion 13 can be sandwiched and fixed by screwing the upper and lower disks.

  The base side arm portion 13 is configured to have an arbitrary length by combining metal (for example, steel) plate-like members having different types of lengths (for example, 25 mm, 40 mm, 60 mm, and 80 mm). That is, a plurality of long holes (for example, 18 mm, 25 mm, 35 mm, and 55 mm) and round holes are appropriately provided in the plate-like member, and the length of the plate-like member is adjusted by combining two or three plate-like members. Later, by inserting screws into these holes and fixing them with nuts, it is possible to create the base side arm portion 13 having an arbitrary arm length. Thereby, it becomes possible to cope with the size of the inner diameters of various steel pipe columns and concrete columns.

  The end-side upper arm 15 is restricted from descending downward by a stopper provided at the tip of the base-side arm 13. This prevents interference between the end-side upper arm 15 and the end-side lower flange 17 and interference between these arms and the weight suspension wire 21.

  At this time, the screw may be fastened with a nut, but in this embodiment, the screw is fixed with a sleeve to prevent loosening during operation.

  Due to the steel nature of the weight suspension wire 21, the suspension base 19 is held in a slightly floating state as shown in FIG.

The weight 23 includes a lower weight 23a fixed to the lower end of the weight suspension wire 21 by a weight attachment sleeve 23b, and an upper portion slidably fitted on the weight suspension wire 21 at the upper portion of the weight attachment sleeve 23b. Divided into weights 23c. The upper weight 23c is provided to suppress the swinging of the lower weight 23a and the weight suspension wire 21 to be suspended.

  Further, as shown in FIG. 7, the jig 40 for reinforcing member equal arrangement is connected to a pair of suspension lower wires 57a connected to the suspension base 49 and the suspension lower wires 57a. It is suspended by a reinforcing material uniform arrangement jig suspension wire 57 constituted by a suspension upper wire 57b.

  3 is in a suspended state, so that the end-side upper arm portion 15 swings upward and is folded. In other words, in this state, the radius of the reinforcing material uniform arrangement jig 10 is almost equal to the minimum arm length of the base side arm portion 43, and when the reinforcing material uniform arrangement jig 10 is inserted into the hollow column. It becomes possible to minimize the length of the side opening H.

  Next, the configuration of the jig center arrangement jig 30 will be described with reference to FIG.

  The shaft member 31 includes a lower shaft member 31a having a length of about 80 mm and an upper shaft member 31b having a length of about 3000 mm connected to the lower shaft member 31a and the connecting member 31c. The connecting member 31c is a long hexagon nut, and connects the lower shaft member 31a and the upper shaft member 31c with a screw threaded on the outer periphery of the upper end of the lower shaft member 31a and a screw threaded on the outer periphery of the lower end of the connecting member 31c. At the same time, it comes into contact with the arm mounting base 11 of the reinforcing material evenly arranged jig 10 to position the reinforcing material evenly arranged jig 10.

  The lower arm attachment base 33 is fixed at a position from 100 mm to 200 mm below the lower shaft member 31a. Four lower arm portions 35 are swingably attached to the lower arm attachment base portion 33. The lower arm portion 35 includes a base side lower arm portion 35a and an end side lower arm portion 35b.

  An upper arm mounting base 39 is slidably mounted in the axial direction above the lower arm mounting base 33. Four upper arm portions 37 are swingably attached to the lower arm attachment base portion 33. The upper arm portion 37 includes a base-side upper arm portion 37a and an end-side upper arm portion 37b.

  In addition, the end of the end side lower arm 35b and the end of the end side upper arm 37b are swingably connected, and the base side lower arm 35a and the base upper arm 37a are two pieces. It is comprised by this plate-shaped body, and while securing the attachment strength to the lower shaft member 31a of the arm itself, the weight at the time of expansion | deployment is earned. Further, the end-side lower arm portion 35b and the end-side upper arm portion 37b are a single plate-like body, and swinging between the end-side lower arm portion 35b and the end-side upper arm portion 37b is light. It is supposed to be.

  Next, this reinforcing material equal arrangement method will be described according to the construction procedure with reference to the flowchart shown in FIG.

  First, in step S <b> 11, the side wall surface of the hollow column P is drilled with an ultrasonic drilling machine to form a side opening H. The side opening H has an opening length (height) of 400 to 500 mm, an opening width of 40 to 50 mm, and a ground clearance of about 1500 mm at the lower end of the opening.

  Next, in step S13, an aramid rod L having a wire WL attached to the upper end is inserted from the side opening H into the hollow column. In this embodiment, the length of the aramid rod L is 3 m, but it can be appropriately changed depending on the total length of the hollow column, that is, the embedded length (depth) that varies depending on the total length. The wire WL is about 2 to 3 m, and is left outside in this step S11.

  Next, in step S15, the wire WL of the aramid rod L is passed through a wire ring of a rod suspension jig (not shown). The rod suspension jig is an annular body having a diameter slightly smaller than the inner diameter of the hollow column, and eight wire rings for guiding the wire WL are provided along the annular body. This rod suspension jig is fixed to the hollow column by a packing band or the like at the upper end portion of the side opening H inside the hollow column.

  Next, the process proceeds to step S17. Here, the wire WL is inserted into the rod holding portion 25 in advance from the slit 25 a of the rod holding portion 25 of the reinforcing material uniform arrangement jig 10, and the wire WL is passed through the rod holding portion 25. After the wiring, the slit 25a is closed with an adhesive tape or the like. Next, after suspending the reinforcing material uniform arrangement jig 10 so that the end-side upper arm 15 is folded upward, the entire reinforcing material uniform arrangement jig 10 is made vertical and hollow from the side opening H. Insert inside the column. Subsequently, the jig center arrangement jig 30 is inserted into the hollow column from the side opening H below the reinforcing material uniform arrangement jig 10.

  When the jig center arrangement jig 30 is inserted, the upper shaft member 31b is first connected to the lower shaft member 31a via the connecting member 31c. Subsequently, the upper arm attachment base 39 of the jig center arrangement jig 30 is pulled upward in the axial direction, and the lower arm part 35 and the upper arm part 37 are drawn to the lower shaft member 31a so as to close the umbrella. The entire arrangement jig 30 is slender and inserted from the side opening H.

  Next, in step S19, the reinforcing material uniform arrangement jig 10 is fitted from the upper end of the shaft member 31 of the jig center arrangement jig 30, and the reinforcing material uniform arrangement jig 10 is further moved to a predetermined position of the shaft member 31. That is, it descends to the upper end position of the connecting member 31c described above.

  Next, in step S21, the jig center arrangement jig 30 is lowered until the shaft member 31 reaches the bottom. At this time, the arm members 35 and 37 of the jig center arrangement jig 30 are developed by the weight of the arm members 35 and 37, and the shaft member 31 is arranged at the substantial center inside the hollow column.

  Next, in step S23, the base-side arm portion 13, the end-side upper arm portion 15, and the end-side lower collar portion 17 of the reinforcing material equalizing jig 10 are developed by their own weight and the weight of the weight 23, and an aramid rod L is evenly arranged inside the hollow column.

  Next, in step S25, into the gap between the aramid rods inside the hollow column, for example, pea gravel or crushed stone is introduced from the side opening H, and mortar, concrete, or the like is sequentially added, thereby starting from the bottom end of the hollow column. Reinforce up to near the side opening. As the filler, any building material such as pebbles, crushed stone, mortar, concrete, gravel, sand, synthetic resin and the like can be used. Thereafter, the side opening H is closed.

  Next, with reference to FIG. 6 and FIG. 7, a reinforcing material uniform arrangement jig 40 according to another embodiment will be described.

  The general configuration of the reinforcing material uniform arrangement jig 40 includes an arm attachment base 41, eight base side arm parts 43 attached to the arm attachment base 41, and arms of the eight base side arm parts 43. An end side arm portion 45 that is swingably provided in the vicinity of the tip opposite to the attachment base portion 41 and has a longer arm length than the base side arm portion 43, and one end portion of the weight suspension wire 51. The base side end is latched with a sleeve, and the suspension base 49 for suspending the arm members 43 and 45 and the end opposite to the base side of the weight suspension wire 51 are latched with a sleeve. The weight 53 is attached.

  Further, as shown in FIG. 7, the jig 40 for reinforcing member equal arrangement is connected to a pair of suspension lower wires 57a connected to the suspension base 49 and the suspension lower wires 57a. It is suspended by a reinforcing material uniform arrangement jig suspension wire 57 constituted by a suspension upper wire 57b.

  The reinforcing material uniform arrangement jig 40 shown in FIG. 7 is in a suspended state, and therefore, the end side arm portion 45 swings upward and is folded. In other words, in this state, the radius of the reinforcing member uniform arrangement jig 40 is almost the same as the arm length of the base side arm portion 43 and is minimum, and the reinforcing member uniform arrangement jig 40 is inserted into the hollow column. It becomes possible to minimize the length of the side opening H. In other words, the radius of the reinforcing member uniform arrangement jig 40 depends on the arm length of the base side arm portion 43 and does not depend on the end side arm portion 45. Even when the length is increased, it is possible to increase the maximum radius at the time of deployment while reducing the minimum radius of the reinforcing material uniform arrangement jig 40.

It is a flowchart for demonstrating the process sequence in the reinforcing material equalization method of the hollow column of this invention. It is a figure which shows the structure of the jig | tool apparatus for reinforcement material equal arrangement | positioning used with the reinforcement material equal arrangement method in the hollow column of this invention. It is a figure which shows the state in the suspended state of the jig | tool for reinforcement material equal arrangement | positioning shown in FIG. It is a figure which shows the structure of the jig | tool for jig | tool center arrangement | positioning used with the reinforcing material equal arrangement | positioning method in the hollow column of this invention. It is a figure which shows the state by which the jig | tool for uniform reinforcement material arrangement | positioning in the hollow pillar of this invention is arrange | positioned in the center position by the jig | tool for jig center arrangement | positioning. It is a figure which shows the structure of the jig | tool apparatus for reinforcement material equal arrangement | positioning used with the reinforcement material equal arrangement method in other embodiment which concerns on this invention. It is a figure which shows the state in the suspended state of the jig | tool for reinforcement material equal arrangement | positioning shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Reinforcement material equal arrangement jig 11 ... Arm attachment base 13 ... Base side arm 15 ... End side upper arm 17 ... End side lower collar 19 ... Suspension base 21 ... Weight suspension wire 23 ... Weight 23a ... Lower weight 23b ... Weight attachment sleeve 23c ... Upper weight 25 ... Rod holder 25a ... Slit 27 ... Reinforcement material uniform arrangement jig Suspension wire 27a ... Suspension lower wire 27b ... Suspension upper wire 30 ... Jig center placement jig 31 ... Shaft member 31a ... Lower shaft member 31b ... Upper shaft member 31c ... Connecting member 33 ... Lower arm attachment base 35 ... Lower arm part 35a ... Base side lower arm part 35b ... End Lower side arm portion 37... Upper arm portion 37 a... Upper side arm portion 37 b .. End side upper arm portion 39... Upper arm attachment base 40. Arm 45 ... Arm on the end side 49 ... Suspension base 51 ... Weight suspension wire 53 ... Weight 55 ... Rod holder 55a ... Slit 57 ... Reinforcement material uniform arrangement jig suspension wire 57a ... Suspension lower wire 57b ... Suspension upper portion Wire L ... Aramid rod LW ... Weight for rod WL ... Wire for rod suspension

Claims (10)

In a state where a hollow column having a hollow portion is erected inside, the reinforcing material is uniformly arranged in the hollow column when reinforcing the hollow column with a plurality of rod-shaped reinforcing materials,
Reinforcement material uniform arrangement jig insertion step of inserting a reinforcement material uniform arrangement jig that holds and distributes the plurality of reinforcement materials from a side opening provided on a side surface of the hollow column;
A jig center placement jig insertion step of inserting a jig center placement jig for placing the reinforcing material uniform placement jig at the center position of the hollow column from the side opening;
A jig for connecting the reinforcing material uniform arrangement jig and the jig central arrangement jig through a rod-shaped shaft member that passes through the reinforcing material uniform arrangement jig and the jig central arrangement jig so as to be perpendicular to each other. The tool connection process,
And the center position of the reinforcing material uniform arrangement jig is arranged at the center position of the hollow column by the jig central arrangement jig, and the plurality of reinforcing materials are evenly arranged by the reinforcing material uniform arrangement jig. A reinforcing material equalizing method in a hollow column, wherein the reinforcing material is fixed by introducing a filler from the side opening after being arranged in the hollow column. In a state where a hollow column having a hollow portion is erected inside, a reinforcing material uniform arrangement method in the hollow column when reinforcing the hollow column,
An opening forming step of forming a side opening on the side surface of the standing hollow column;
A reinforcing material insertion step of inserting a plurality of rod-shaped reinforcing materials into the hollow column from the side opening;
Reinforcement material equal arrangement in which a reinforcing material equalizing jig for holding and distributing the plurality of reinforcement materials by a holding portion provided on a swingable arm portion is inserted from the side opening with the arm portion folded. Jig insertion process,
The side opening of the jig center arrangement jig that closes the arm part is arranged so that the reinforcing material uniform arrangement jig is arranged at the center position of the hollow column by unfolding the arm part provided so as to be unfoldable. A jig center placement jig insertion step to be inserted below and placed below the reinforcing material uniform placement jig,
Jig connection that connects the reinforcing material uniform arrangement jig and the jig central arrangement jig via a shaft member that passes through the reinforcing material uniform arrangement jig and the jig central arrangement jig in a straight line. The process,
The arm portion of the jig for centrally arranging the jig is arranged to deploy the center position of the jig for uniformly arranging the reinforcing material at the center position of the hollow column, and the arm of the jig for arranging the reinforcing material uniformly is developed. A reinforcing material fixing step in which a plurality of reinforcing materials held by the holding portion are evenly arranged and then the reinforcing material is fixed by introducing a filler from the side opening;
Clogging the side opening;
A method for uniformly arranging reinforcing members in a hollow column.   The reinforcing material evenly arranged jig folds the arm portion provided in a freely deployable state when the reinforcing material evenly arranged jig is in a suspended state, and deploys the arm when the suspended state is released. The method for evenly arranging reinforcing members according to claim 2.   4. The reinforcing material uniform arrangement method according to claim 2, wherein the jig center arrangement jig is developed by its own weight of an arm portion. In a state where a hollow column having a hollow portion is erected inside, a reinforcing material equalizing jig in the hollow column when reinforcing the hollow column with a plurality of rod-shaped reinforcing materials,
An arm mounting base having a plurality of arm mounting portions at equal intervals on the outer peripheral side;
A plurality of base-side arm portions attached to the attachment portion of the arm portion of the arm attachment base portion;
An end side arm portion that is swingably connected to each of the base side arm portions and has a holding portion that holds the reinforcing material,
A suspension base having attachment portions of a plurality of weight suspension wires at equal intervals on the outer peripheral side;
The suspension base has a weight connected to the other end of the suspension wire whose one end is hooked to the attachment portion of the suspension wire via the tip of the end arm portion. Reinforcement material equal placement jig.   The reinforcing material evenly arranged jig folds the arm portion provided in a freely deployable state when the reinforcing material evenly arranged jig is in a suspended state, and deploys the arm when the suspended state is released. The reinforcing material uniform arrangement jig according to claim 5.   The base side arm portion is composed of a plurality of plate-like members, and the plate-like member is provided with an elongated hole. By changing the configuration of the plurality of plate-like members, the base side arm portion of the base side arm portion is provided. Arm length is changed, The reinforcing material equal placement jig according to claim 5 or 6.   8. The jig for evenly arranging a reinforcing material according to claim 5, wherein the base side arm portion has a protruding portion for restricting downward swinging of the end side arm portion at a tip portion. . The end side arm portion is further configured by an end side upper arm portion and an end side lower collar portion,
The end-side upper arm is swingably coupled at a position slightly closer to the arm mounting base than the distal end of the base-side arm,
The end side lower collar portion is swingably connected to a protrusion that regulates downward swing of the end side upper arm portion provided at the distal end portion of the base side arm portion,
The weight suspension wire has one end hooked to the suspension base and the other end connected to the weight via the tip of the end-side upper arm and the tip of the end-side lower collar. The jig for evenly arranging reinforcing members according to any one of claims 5 to 8.   9. The jig for evenly arranging reinforcing members according to claim 5, wherein the arm length of the end side arm portion is longer than the arm length of the base side arm portion.

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