JP5943703B2 - Jig set for column reinforcement assembly - Google Patents

Description

The present invention relates to a reinforcing bar correctly positioned with jig set for with pillar reinforcement assembly which can be assembled in such columns.

  Conventionally, as a jig used in manufacturing a reinforced concrete column of a building by properly positioning and assembling column reinforcing bars (column main reinforcing bars), as shown in Patent Document 1 and Patent Document 2, the arrangement positions of reinforcing bars (bars) It is known to use a column reinforcing bar support frame (a ruler plate or a template) provided with a plurality of holes for inserting reinforcing bars in accordance with the above.

  Then, in order to fill the gap between the hole of the support frame and the column reinforcing bar and to assemble the column reinforcing bar with high accuracy, the cylindrical adjustment member or flanged cylinder having a flange at the upper end is divided into two. A pair of semi-cylindrical column main bar fixing plugs are fitted between the reinforcing bar and the hole.

  However, in these conventional techniques, it is difficult to remove the adjusting member sandwiched between the hole and the reinforcing bar or the column main bar fixing plug, and the position of the reinforcing bar by pushing and pulling a plurality of reinforcing bars. The adjustment member or column may be displaced by the position of the other adjustment member or the column main bar fixing plug that has already been fitted while adjusting the shaft, or by expansion or contraction of the reinforcing bar due to vibration or heat generated during the subsequent construction. There is a possibility that the position of the main muscle fixing plug may be shifted, and there is a disadvantage that the use state is not stable.

Therefore, as a prior art for solving such a drawback, the present patent applicant has already proposed a jig for assembling the column reinforcement shown in Patent Document 3.
This column reinforcement jig is
`` A cylindrical main body that can be inserted into a template that has a through-hole through which a reinforcing bar can be inserted and a hole that determines the installation position of the reinforcing bar,
An expansion part for preventing the cylindrical part from slipping through the hole by bulging an intermediate part in the axial direction of the cylindrical body;
A column reinforcing bar assembling treatment provided with a locking projection that protrudes from the cylindrical body at a position below the lower surface of the expansion portion so that the vicinity of the hole portion of the template can be sandwiched with the expansion portion. Ingredients.

JP 2004-190412 A Japanese Utility Model Publication No. 63-7648 JP 2011-1729 A

  However, in the column rebar assembling jig described in Patent Document 3, a column rebar including a hook with a curved end portion of a column rebar, such as the column rebar on the uppermost floor, has a column from its front end side. There was a problem that it was not possible to insert the rebar assembly jig.

  Therefore, as described in Patent Document 2, it is conceivable to divide the column rebar assembling jig into two parts. There is a problem of going crazy.

Furthermore, when the jig for assembling the column reinforcing bars divided into two parts is manufactured by resin molding, there is a problem that deformation due to heat shrinkage occurs.
In order to prevent such deformation, it is sufficient to reduce the wall thickness. However, this may cause problems such as insufficient strength of the column rebar assembly jig, and a wide gap between the column rebar assembly jig and the column rebar. There is a problem that it is not possible to deal with cases.

Therefore, an object of the present invention is to attach and detach to and from a column reinforcing bar having a hook at the tip, and to lock and stabilize the attachment state to the template. An object of the present invention is to provide a column reinforcing bar assembling jig set including a semi-cylindrical body for forming a column reinforcing bar assembling jig capable of providing a column reinforcing bar assembling jig and a template .

The present invention is “a linear template having a“ C ”-shaped hole portion that is transparently cut out so that one side is partially cut out, and the templates are attached to column reinforcing bars from the side. The hole portion is formed so that the opening width of the opening portion is smaller than the diameter of the hole portion, and the center of the reinforcing bar inserted from the side into the opening portion is positioned at a correct position. A jig for assembling the pillar rebar for correcting and positioning can be mounted and fixed, and further provided with a notch formed so as to partially enlarge the "C" -shaped hole. Templates and
A semi-cylindrical body for constituting a column reinforcing bar assembling jig having a through hole through which a reinforcing bar can be inserted and a cylindrical main body that can be inserted into the template having a hole portion that determines the installation position of the reinforcing bar Because
The middle part in the axial direction of the cylindrical body configured by combining end faces extending along the axial direction of the two semi-cylindrical bodies bulges through the hole. An extension to prevent,
Near the hole of the template so that it can be locked Nde write scissors together with the extension portion, and a locking projection formed to project from the tubular body at a position below the lower surface of the extension portion,
It consists of an engagement recess or engagement protrusion formed on an end surface extending along the axial direction of the semi-cylindrical body, and engages with an engagement protrusion or engagement recess of another semi-cylindrical body. Positioning means for stabilizing the combined state of the semi-cylindrical bodies;
A semi-cylindrical body for constituting a column rebar assembling jig comprising:
A jig set for assembling column reinforcement. Is the most important feature.

Furthermore, it is preferable that the engaging convex part and the engaging concave part of the positioning means are arranged so that the semi-cylindrical body can be combined with another semi-cylindrical body having the same shape.
Further, the semi-cylindrical body has a thin-walled structure on the inner surface side except for the vicinity of the end surface extending along the axial direction, and has an original thickness corresponding to the outer diameter of the column reinforcing bar only partially. It should be left.

  The extension portion may be formed in a polygonal column shape, and the cylindrical main body may be rotated with a spanner-like tool. Furthermore, the lower surface of the template may be sandwiched by inclining the upper end surface of the locking projection and rotating the cylindrical main body on the template.

  Furthermore, the upper end surface of the locking projection may be inclined, and the lower surface of the template may be sandwiched by rotating the cylindrical main body on the template.

  By adopting the above configuration, the semi-cylindrical body for constituting the column reinforcing bar assembling jig of the present invention is a column reinforcing bar having a hook at the tip by combining two semi-cylindrical bodies. Even if there is, it can be quickly and easily attached to and removed from the template with the correct layout, and the mounting state to the template is stable, and the column rebar can be positioned and assembled easily and accurately. Can do.

Furthermore, the semi-cylindrical body for constituting the column reinforcing bar assembling jig of the present invention can be manufactured and assembled by combining the same shape so as to constitute the column reinforcing bar assembling jig. Attaching work and storage can be simplified.
Further, by making the inner surface side partially thin, it is possible to suppress deformation during resin molding, to secure necessary strength and inner diameter, and to withstand repeated use over a long period of time.

  Furthermore, by making the extended portion into a polygonal column shape, the extended portion can be operated using a wrench-like tool or large pliers that match the shape of the extended portion.

  Moreover, the state fixed to the template can be strengthened by inclining the upper end surface of the locking projection.

FIG. 1 is a perspective view for explaining a use mode of a semi-cylindrical body for constituting a column reinforcing bar assembling jig, wherein (a) is a perspective view showing a column reinforcing bar assembling jig; (B) is a perspective view which shows a template, (c) is a perspective view which shows a template and a column reinforcement, (d) is a perspective view which shows the column reinforcement positioned in the template with the jig for column reinforcement assembly. FIG. 2 is a diagram showing an embodiment of a semi-cylindrical body for constituting a column reinforcing bar assembling jig, wherein (a) is a plan view, (b) is a bottom view, and (c) is a plan view. (D) is a left side view, (e) is a rear view, and (f) is a perspective view. FIG. 3 is a perspective view showing an embodiment of a template capable of fixing a fixing plate to which a column reinforcing bar assembling jig is attached. FIG. 4 is a plan view of the fixing plate on which the column reinforcing bar assembling jig is mounted. FIG. 5 is a partially cutaway side view showing the column reinforcement positioned by the column reinforcement assembly jig and the template. FIG. 6 is a perspective view for explaining a method of positioning a column reinforcing bar with a semi-cylindrical body for constituting a column reinforcing bar assembling jig, and (a) is a perspective view showing the column reinforcing bar. (B) is a perspective view which shows a column reinforcement and a template, (c) is a perspective view which shows the column reinforcement positioned by the column reinforcement assembly jig and a template. FIG. 7 is a perspective view showing another embodiment of the template. FIG. 8 is a view showing another embodiment of a semi-cylindrical body for constituting a column reinforcing bar assembling jig, wherein (a) is a rear view of the semi-cylindrical body, and (b) is two pieces. It is a perspective view which shows the state which combined the semicylindrical body of these.

The present invention
(1) A column reinforcing bar assembly template including a hole portion that defines a rebar installation position, and a notch portion that is formed to partially enlarge the hole portion;
(2) A reinforced concrete column can be provided with extremely high accuracy by using a column reinforcing bar assembling jig constituted by combining two semi-cylindrical bodies.

  Here, in this specification, the “hole portion” of the template or the fixing plate described later is formed not only by a completely circular through-hole but also by cutting out a part of the template or the fixing plate. It also includes “C” -shaped through holes (notches).

And according to the present invention,
In the vicinity of the tip of the column reinforcing bar with a hook, insert the hole of the template from the side of the column reinforcing bar,
Temporarily fix the template at a predetermined tip position of the column reinforcement,
By attaching and combining two semi-cylindrical bodies to the column reinforcement from both sides of the column reinforcement, a column reinforcement assembly jig is configured,
When inserting the lower part of the cylindrical body of the column reinforcing bar assembly jig into the hole of the template while correcting the center of the column reinforcing bar to the correct position, the locking protrusion of the column reinforcing bar mounting jig is inserted into the template. The locking projection is arranged below the template in correspondence with the notch,
The column reinforcing bar assembling jig is arranged on the upper surface of the template by the extension part of the cylindrical body,
By rotating the upper part or the extension part of the cylindrical main body to sandwich the vicinity of the hole of the template by the locking protrusion and the extension part, and fixing the column rebar assembly jig on the template Position each column rebar correctly
Fix the template while adjusting the template level,
Then, after installing the formwork to surround the column reinforcement, the concrete is poured into the periphery of the column reinforcement, so that the reinforced concrete has excellent design strength with excellent accuracy using the column reinforcement assembly jig and template. The pillar can be easily manufactured.

  That is, with the above configuration, in the semi-cylindrical body for constituting the column rebar assembling jig of the present invention, even a rebar such as a column having a hook at the tip end (bar), quickly and easily. It can be attached, and the mounting state to the template with the correct arrangement of the reinforcing bars is stable, so that the subsequent construction work can be proceeded with peace of mind, and it is easy to remove from the template. Reinforcing bars can be assembled with high accuracy and excellent durability for long-term repeated use.

  And by using the column reinforcing bar assembling jig and the template of the present invention, it is easy to manufacture a reinforced concrete column having an excellent design strength with excellent accuracy without impairing workability and causing an increase in cost. be able to.

Hereinafter, the semi-cylindrical body H for constituting the column rebar assembling jig 10 of one embodiment of the present invention will be described in more detail based on the description of FIGS.
FIG. 1 is a perspective view showing a column reinforcing bar assembling jig 10 and a template 5 according to an embodiment of the present invention. As shown in FIGS. 2 and 3, reference numeral 1 denotes a semicylindrical body according to the present embodiment. The cylindrical main body of the column reinforcing bar assembly jig 10 obtained by combining two H, 2 is an expansion portion, 3 is a locking projection, 4 is a column reinforcement, and P is a column reinforcement assembly jig 10. It is a fixing plate for mounting on the template 5.
That is, in the present embodiment, the hole portion 6 is not directly provided in the template 5 but the hole portion 6 is provided in a separate fixing plate P, and the template 5 and the fixing plate P are combined to provide the hole portion 6. A template with

The reason for using the separate fixing plate P in this way is that if the hole 6 is provided directly in the template 5, the work of correctly forming the hole in the template at each site where the positions of the column reinforcing bars 4 are different becomes complicated. It is.
However, as shown in FIG. 7, the “C” -shaped hole 6 may be formed directly in the template 5 without using the fixing plate P.

The column reinforcing bar assembling jig 10 can be easily obtained by combining two semicylindrical bodies H having the same shape.
In FIG. 2 (e), two upper and lower engaging projections S1 are formed on the left end surface extending along the axial direction of the semi-cylindrical body H. In FIG. On the right end surface extending along the axial direction of the semi-cylindrical body H, a groove-shaped engagement recess S2 is formed at a position corresponding to the engagement protrusion S1.

Then, the engaging convex portion S1 formed on one semicylindrical body H is engaged with the engaging concave portion S2 formed on the other semicylindrical body H.
That is, the engagement convex part S1 and the engagement concave part S2 formed on the two semicylindrical bodies H to be combined engage with each other to stabilize the correct combination state of the two semicylindrical bodies H. The positioning means to be configured is configured.

By disposing the engagement convex part S1 and the engagement concave part S2 on the semicylindrical body H as described above, it is possible to combine the semicylindrical bodies H having the same shape. And the arrangement | positioning of such engagement convex part S1 and engagement recessed part S2 can consider various patterns, and is not limited to the pattern shown in this embodiment.
On the other hand, it is possible to prepare male and female semi-cylindrical bodies H having different shapes and to combine them, but not only the manufacturing becomes complicated, but it takes time to combine them at the work site. .

  Moreover, the shape of the template 5 used for the column reinforcing bar 4 having a hook at the tip is linear, and the template 5 to which the fixing plate P is fixed is mounted from the side of the column reinforcing bar 4. Finally, these linear templates 5 may be joined together so that the overall shape is a square shape, a square shape, a surrounding shape, or the like.

  The hole 6 is formed in a “C” shape that is transparently formed by partially cutting one side of the fixing plate P, and the fixing plate P is fixed to a predetermined position of the template 5. Thus, it corresponds to the correct position of the column reinforcement 4. In other words, the center position of the hole 6 and the center position (axial center position) of the column reinforcing bars 4 that are correctly arranged coincide with each other.

  6a is a pair of notches that are spaced apart by 180 degrees so as to partially enlarge the hole 6. The forming directions are all the same, and the columns to the fixing plate P fixed to the template 5 are provided. The mounting operation of the reinforcing bar assembly jig 10 is facilitated, and the fixed state of the plurality of column reinforcing bar assembly jigs 10 attached to the template 5 is easily confirmed.

  The cylindrical main body 1 obtained by combining the two semicylindrical bodies H is slightly larger than the inner diameter of the hole 6 provided in the fixing plate P with the cylindrical outer peripheral surface 1 a fixed to the template 5. It has a small outer diameter (about 2 mm). Further, the inner peripheral surface 1 c constituting the through hole 1 b penetrating the cylindrical main body 1 in the vertical direction has an inner diameter slightly (about 2 mm) larger than the maximum outer diameter portion (outermost diameter) having the unevenness of the column reinforcement 4. Have.

  The inner diameter of the through hole 1b of the cylindrical main body 1 of the column reinforcing bar assembly jig 10 is determined in accordance with the outer diameter of the column reinforcing bar 4, and the column reinforcing bar is placed in the through hole 1b. The inner diameter of the through hole 1b of the cylindrical main body 1 may be set as follows as an example in consideration of workability when inserting the through hole 4 and the allowable range of the assembly position of the column reinforcing bar 4.

  For example, in the case of the column reinforcing bar assembly jig 10 corresponding to the column reinforcing bars 4 of each size of D41, D38, D35, D32, and D29, the outermost diameters of these column reinforcing bars 4 are about 45 mm, 42 mm, respectively. Since the inner diameter of the through-hole 1b of the cylindrical main body 1 is 47 mm, 44 mm, 41 mm, 37 mm, or 34 mm, there are a plurality of them depending on the number of column rebars 4 used for actual columns. It will be prepared.

  In order to easily identify the column reinforcing bar assembling jigs 10 having different inner diameters, for example, a size display such as “D41”, “φ38”, “35”, “diameter 32”, or the like is given. It is good to manufacture from the resin of a color, and to make it the thing of a different color for every jig | tool 10 for pillar reinforcement assembly | attachment of the same size. In addition, when manufacturing the column reinforcement assembly | attachment jig | tool 10 with materials other than resin, for example, a light metal, it is good to give a different color coating, or to perform the display or marking for identification.

  The extension portion 2 is formed larger than the hole portion 6 of the fixing plate P, and prevents the column rebar assembling jig 10 from passing through the hole portion 6 and falling below the fixing plate P. For this purpose, the cylindrical body 1 is provided in an annular shape by bulging the substantially central portion in the axial direction (vertical direction) outward, and the expansion portion 2 is thin in this embodiment. Hexagonal column shape.

  A pair of locking protrusions 3 are provided so as to protrude 180 degrees apart from the expanded portion 2 of the column rebar assembly jig 10 so as to protrude from the cylindrical main body 1. It is formed in a size that can pass through the notch 6 a formed in the portion 6, and the upper end surface 3 a of the locking projection 3 can sandwich the fixing plate P between the extended portion 2. The lower portion of the extension portion 2 is provided at a lower position corresponding to the thickness of the fixing plate P.

  Further, the upper end surface 3a of the locking protrusion 3 is not parallel to the lower surface of the extension portion 2, but is inclined slightly upward to the right, and the column reinforcing bar set corresponding to the resin fixing plate P having a thickness of 6 mm. In the case of the attachment jig 10, the attachment jig 10 is adjusted so as to be positioned about 6.2 mm to 5.4 mm below the lower surface of the extension portion 2.

  Then, by rotating the column rebar assembling jig 10 to the right on the fixing plate P (rotating operation), the lower surface of the template 5 adjacent to the notch 6a is sandwiched between the upper end surfaces 3a, The column reinforcement assembling jig 10 can be easily locked (fixed) on the template 5.

  When the column reinforcing bar assembling jig 10 is rotated on the fixing plate P, the upper part of the cylindrical body 1 is directly operated by hand or the extension part 2 is used as a spanner-like tool. The column rebar assembling jig 10 is fixed in a stable locked state with respect to the fixing plate P, or the locked state is released to fix the column rebar assembling jig 10 to the fixing plate. Can be removed from P.

  The shape of the extended portion 2 in another embodiment may be an elliptical column shape, a star shape, a corolla shape, or a thin column shape having a polygonal shape such as 3 to 16 squares. What is necessary is just to operate the expansion part 2 using the spanner-like tool or large pliers etc. which match a shape.

  The column rebar assembly jig 10, the template 5, and the fixing plate P configured as described above constitute a column rebar assembly jig set.

  FIG. 8 is a view showing a semi-cylindrical body for constituting the column reinforcing bar assembling jig 20 of another embodiment of the present invention, and the same components as those of the above embodiment are denoted by the same reference numerals. 1 is a cylindrical body, 1a is an outer peripheral surface, 1b is a through hole, 1c is an inner peripheral surface, 2 is an expansion portion, 3 is a locking projection, and 3a is an upper end surface. .

The semi-cylindrical body H constituting the column reinforcing bar assembling jig 20 of this embodiment has a thin structure on the inner surface side except for the vicinity of the end surface extending along the axial direction, and is partially It is formed so that the original thickness corresponding to the outer diameter of only the column reinforcing bar remains.
This structure prevents deformation of the semi-cylindrical body H after molding, further reduces the weight of the entire column rebar assembling jig, saves material, secures necessary strength, and secures the semi-cylindrical body H. The die can be removed at the time of molding.

  Specifically, as shown in FIGS. 8A and 8B, two thin-walled portions T are formed in the upper, central, and lower portions on the inner surface side of the semicylindrical body H, and they are adjacent to each other. The rib R which maintains original thickness in the part and the upper and lower end surface part is formed.

  Next, a method for manufacturing a reinforced concrete column using the semi-cylindrical body H or the like for constituting the column reinforcing bar assembling jig of the present invention will be described as follows.

First, as shown in FIG. 1B, a template 5 in which a plurality of fixing plates P are fixed with screws at a predetermined position is prepared in advance.
Further, a U-shaped clip (not shown) is temporarily fixed to the column reinforcing bar 4 corresponding to the height position where the column reinforcing bar assembling jig 10 is attached (two corners).

Next, as shown in FIG. 1C and FIG. 6B, the opening of the hole 6 of the fixing plate P fixed to the template 5 is inserted so as to correspond to the column reinforcement 4.
Then, as shown in FIGS. 1D and 6C, two semicylindrical bodies H are combined so that the column reinforcing bars 4 are sandwiched from both sides of the column reinforcing bars 4, and a column reinforcing bar assembling jig is combined. 10, the column rebar assembly jig 10 is rotated at a predetermined position of the column rebar 4, and the fixing plate P is sandwiched between the extension portion 2 and the locking projection 3 so that the column rebar assembly is performed. The jig 10 is fixed so as to be locked.

The same operation is performed on the opposite side of the column reinforcing bar 4 to fix the two templates 5 to the column reinforcing bar 4.
Then, the template 5 is also inserted into the side adjacent to the column reinforcing bar 4 and placed on the already-attached template 5, and the column reinforcing bar assembling jig 10 is fixed to those holes 6 in the same manner as described above. .
Next, the four templates 5 are fixed so as to be connected to each other with bolts while taking out the level of the template 5, and the template 5 is assembled in a square shape surrounding the plurality of column reinforcing bars 4.

  As described above, in the semi-cylindrical body H for constituting the jig for assembling the column reinforcing bar according to the present invention, the correct positioning operation can be easily performed for the column reinforcing bar 4 having the hook at the tip. .

  As a modification of the above embodiment, the upper part of the cylindrical main body for forming the column reinforcing bar assembling jig is formed in a polygonal column shape, and the cylindrical main body is rotated by a spanner-like tool. It may be possible to operate.

The present invention is not limited to the form of each of the above-described embodiments. For example, the number of the locking protrusions 3 or the cutout portions 6a, the shape, size, material, and arrangement of each portion are within the scope of the present invention. Etc. may be appropriately changed.
When changing the number of the engaging convex portions S1 or the engaging concave portions S2, the number may be reduced to one, or may be increased to three or four.

  Alternatively, a slope or protrusion that thickens the template 5 is provided in the vicinity of the notch 6a of the hole 6 on the back surface of the template 5 or the fixing plate P so that the upper end surface 3a of the locking protrusion 3 is locked. May be. In this case, the upper end surface 3 a of the locking projection 3 may be parallel to the lower surface of the extension portion 2.

  In the semi-cylindrical body for constituting the column rebar assembling jig of the present invention, it can be quickly and easily attached to a rebar such as a column having a hook at the tip, and the construction of the reinforced concrete building It can be suitably used in industry.

DESCRIPTION OF SYMBOLS 1 Cylindrical main body 1a Outer peripheral surface 1b Through-hole 1c Inner peripheral surface 2 Expansion part 3 Locking protrusion 3a Upper end surface 4 Column reinforcement 5 Template 6 "C" -shaped hole part 6a Notch part as one Embodiment of a hole part 10 Column rebar assembly jig 20 Column reinforcement assembly jig H Semi-cylindrical body P Fixing plate R Rib S1 Engaging projection (positioning means)
S2 engaging recess (positioning means)
T Thin part

Claims (5)

It is a linear template with a “C” -shaped hole that is transparently cut out so that one side is partly cut out, and the templates are connected to each other after being attached to the column reinforcement from the side. Can be fixed,
The hole portion is formed so that the opening width of the opening portion is smaller than the diameter of the hole portion, and the center of the reinforcing bar inserted from the side into the opening portion is corrected and positioned in a correct position. A jig can be attached and fixed,
Furthermore, a template comprising a notch formed so as to partially enlarge the "C" -shaped hole,
A semi-cylindrical body for constituting a column reinforcing bar assembling jig having a through hole through which a reinforcing bar can be inserted and a cylindrical main body that can be inserted into the template having a hole portion that determines the installation position of the reinforcing bar Because
The middle part in the axial direction of the cylindrical body configured by combining end faces extending along the axial direction of the two semi-cylindrical bodies bulges through the hole. An extension to prevent,
Near the hole of the template so that it can be locked Nde write scissors together with the extension portion, and a locking projection formed to project from the tubular body at a position below the lower surface of the extension portion,
It consists of an engagement recess or engagement protrusion formed on an end surface extending along the axial direction of the semi-cylindrical body, and engages with an engagement protrusion or engagement recess of another semi-cylindrical body. Positioning means for stabilizing the combined state of the semi-cylindrical bodies;
A semi-cylindrical body for constituting a column rebar assembling jig comprising:
A jig set for assembling a column reinforcing bar characterized by comprising:   The engagement convex portion and the engagement concave portion of the positioning means are arranged so that the semi-cylindrical body can be combined with another semi-cylindrical body having the same shape. The jig for assembling the column reinforcement as described.   The semi-cylindrical body has a thin-walled inner surface except for the vicinity of the end face extending along the axial direction, and the original thickness corresponding to the outer diameter of the column reinforcing bar is only partially left. A jig set for assembling a column reinforcing bar according to claim 1 or 2, wherein   4. The extension portion according to claim 1, wherein the extension portion is formed in a polygonal column shape, and the cylindrical main body can be rotated with a spanner-like tool. 5. Jig set for assembling pillar reinforcement.   The upper end surface of the locking projection is inclined, and the lower surface of the template can be sandwiched by rotating the cylindrical main body on the template. 5. A jig set for assembling a column reinforcing bar according to any one of claims 1 to 4.

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