JPH0786273B2 - Method for handling shear reinforcement and jig - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handling method from manufacture of a shear reinforcing bar used for a column of an RC structure building to assembly to a main bar, and a jig used for the handling.

[0002]

2. Description of the Related Art A shear reinforcing bar surrounding a main bar is used for columns and beams of a reinforced concrete (RC) structure. This shear reinforcement bar uses a round bar with a thickness of 7.4 to 16 mm at the factory.
Squares of various sizes according to the main bar arrangement dimensions of the column cross section,
It is manufactured by processing into a rectangular shape and other shapes. Such shear reinforcing bars are bundled into a bundle having a weight that can be carried by two workers, for example, 50 kg or less, according to size and shape. The bundle of shear reinforcements bound by size and shape is loaded on a truck or the like and transported to a temporary storage such as a temporary warehouse at a building construction site. In the temporary storage, these shear reinforcements are stored according to size and shape. In use, all the shear reinforcing bars to be attached to the columns are selected and taken out from the storage place according to the above size and shape, and one column is combined. Carry this one set to the position of the pillar with a crane and assemble it to the main bar of the pillar.

In a factory, as shown in FIGS. 2, 3 and 4, (a) outer peripheral bar 1 with a bent end (b) core bar 2 with a bent end (c) welded to form a closed loop Outer peripheral muscle 3 (d) core muscle 4 (e) spiral continuous outer peripheral muscle 5 (f) welded to form a closed loop, outer peripheral muscle and core muscle integrally manufactured-body forming muscle 6 (g) outer peripheral muscle And various kinds of shear reinforcements such as spiral continuous muscle 7 of core muscle are manufactured.

For example, as shown in FIG. 8, a bundle of peripheral muscles, a bundle of core muscles 9 and the like are packed in a bundle of about 50 kg according to size and shape, loaded on a truck and transported to a construction site. Figure 9
Shows a part of the state in which the shear reinforcing bars having various sizes and shapes are stored according to the sizes and shapes. For example,
Such as a bundle 8 of peripheral muscles of various sizes, a bundle 9 of core muscles, and the like.

Next, from among these various shear reinforcements,
Select all outer peripheral muscles and core muscles to be assembled for one pillar and take them out and combine them. FIG. 10 shows the combined shear reinforcement set 10. FIG. 11 shows a step of incorporating the shear reinforcing bar set 10 into the column main bar 11. For example, this set 10 is lifted by a crane 13 and fitted on the reinforcement 11 from above the main reinforcement 11 which has already been erected, and is temporarily placed on the telescopic pedestal 12, and is sequentially bound to the main reinforcement with a binding line, and as shown in FIG. To the array of.

[0006]

The above-mentioned conventional techniques have the following problems. (B) The shear reinforcements of various sizes and shapes produced can be carried by two people for each size and shape, for example, 50
Bind in a bundle of less than kg. In this case, since the unit of binding is small, it takes a lot of time to pack and the loadable amount on the truck is also reduced.

(B) At the construction site, it is necessary to classify and store various types of shear reinforcing bars according to size and shape.
It takes a lot of time to store, sort, and put in and out, and a large storage space is required. (C) The work load of the reinforcing bar work for assembling the reinforcing bar is large, inefficient, labor-intensive, and a large assembly workshop is required.

The present invention aims to solve such problems.

[0009]

SUMMARY OF THE INVENTION The present invention is a method for solving the above-mentioned problems, which is a rational improvement of all steps from the production of shear reinforcement bars to the on-site assembly.
That is, all the shear reinforcements to be assembled to the RC structure column are collectively packaged and transported in a set in which the shear reinforcements are assembled at the time of use at the shear reinforcement manufacturing plant when the shear reinforcements are manufactured. the construction site, I handling der of pruning sectional reinforcement that assembling the packing material as it is to the main reinforcement of the pillar, hitting to the packaging, a plurality of shear reinforcement holding jig comprising a U-shaped member leave standing, narrowing sequentially dropped to a holding jig erected as the arrangement when using a set of shear reinforcement, you characterized that you packing in the pair. In this case, if the shear reinforcement is an integrally formed reinforcement in which the peripheral muscle and the core muscle are formed in series, the packing work can be further streamlined. It is most rational if it is made into a spiral continuous streak that is continuously formed into a shape.

Further, a holding jig is used in order to efficiently pack all the shear reinforcing bars to be assembled in one column. Such a holding jig is composed of a U-shaped rod body, the inner width of the U-shape is larger than the thickness of the shear reinforcing bar, and the height of the U-shape is higher than the height of stacking one set of shear reinforcing bars. It is preferable to use a shear reinforcing bar holding jig having a hook formed on at least one upper end of the U-shape.

[0011]

The process of the present invention is shown in FIG. FIG. 1B also shows a conventional process in (b). As is apparent from FIG. 1, the present invention eliminates the steps of storage, selection, and combination in the steps from the production of the shear reinforcing bar to the assembly, and thus the present invention has been improved to the essential work only.

According to the method of the present invention, the shear reinforcing bars that match the assembling conditions at the construction site are combined and packaged at the manufacturing factory according to the design of the individual columns of the RC structure. One package is about 50 to 500 kg. This is transported to the site and assembled as it is to the main bar of the pillar. Therefore, a temporary storage space for each size and shape is not required, and the labor of the reinforcing bar work can be significantly reduced.

The holding jig 20 of the present invention comprises a U-shaped rod, and a plurality of U-shaped rods are erected in accordance with the size and shape of the shear reinforcing bar, and the shear reinforcing bar is dropped into the holding jig 20. Can be used at mutual intervals. Further, since the hook 21 is attached to the upper end, it is convenient for hanging, and when the shear reinforcing bar is attached to the column, it can be easily removed downward and can be repeatedly used.

According to the method of the present invention, in particular, it is possible to manufacture a shear reinforcing bar having a high degree of aggregation such as a spiral continuous bar in accordance with the design of a column of an RC structure, which is extremely efficient.
It can be packed, transported, and assembled.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, the process of the present invention in (a) and the conventional technique in (b) are the same in the process of producing shear reinforcement. That is, the shear reinforcing bars 1 to 7 in FIGS.
Is the same as making. Next, in the present invention, four holding jigs 20 are erected as shown in FIG. 5, and shear reinforcing bars are incorporated into the erected holding jigs 20. This installation is done with all the shear reinforcement bars 22 that match the assembly conditions at the construction site.
Drop in the order specified. FIG. 5B shows the set 10 that has been assembled. At this time, if the shear reinforcing bar composed of the spiral continuous bar 7 as shown in FIG. 4 is manufactured in accordance with the design of the column, the manufacturing and packing will be more efficient.

As shown in FIG. 6, the shear reinforcing bar set 10 is transported by truck, and the upper hook 21 of the holding jig 20 is lifted by the crane 13 as shown in FIG. 7 (a).
As shown in (b), the main jig 11 is fitted and placed on the telescopic mount 12, and the holding jig 20 is removed downward as shown in FIG.
Next, as shown in FIG. 13, the main bars 11 are assembled at required intervals.

[0017]

According to the present invention, the entire process from the production of shear reinforcing bar to the on-site installation is remarkably rationalized, which greatly contributes to labor saving, cost reduction, shortening of construction period, and labor shortage.

[Brief description of drawings]

FIG. 1 is a process drawing showing a conventional process (b) of an embodiment process (a) of the present invention.

FIG. 2 is an explanatory diagram of a shear reinforcing bar.

FIG. 3 is a plan view of an integrally formed reinforcing member in which an outer peripheral member and a core member are integrally formed.

FIG. 4 is a perspective view of a continuous spiral muscle.

FIG. 5 is an explanatory diagram of the packaging of the present invention.

FIG. 6 is a truck transportation diagram.

FIG. 7 is an explanatory diagram of an assembling process.

FIG. 8 is an explanatory diagram of an assembling process.

FIG. 9 is a packing packing diagram of a conventional shear reinforcing bar.

FIG. 10 is an explanatory diagram of storage of a conventional shear reinforcing bar.

FIG. 11 is a perspective view of a set of one column of a conventional shear reinforcing bar.

FIG. 12 is an explanatory view of an assembling work of a conventional shear reinforcing bar with a main bar.

FIG. 13 is an explanatory diagram of a process of assembling the main bar and the shear reinforcing bar in an array.

[Explanation of symbols]

 1,3 Peripheral muscles 2,4 Core muscles 5 Spiral continuous peripheral muscles 6 Integrally molded muscles 7 Spiral continuous muscles 8, 9 Bundles 10 sets 11 Main bars 12 Telescopic mounts 13 Cranes 20 Holding jigs 21 Hooks 22 Shear reinforcement bars

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-53-137524 (JP, A) JP-A-53-126720 (JP, A) Actually open Sho-60-157821 (JP, U) Actual-open Sho-55- 69556 (JP, U) Actually open Sho 53-143413 (JP, U)

Claims (5)

[Claims] 1. A shear reinforcing bar holding jig comprising a U-shaped member.
Set up a plurality of standing bars and use the shear reinforcement bars after processing when using them.
It is placed in the U-shaped member in the order of placement and assembled at the construction site.
It is characterized by collective packing in the order that matches the attachment state.
How to handle shear reinforcement. 2. Shear reinforcement is integrally formed of peripheral muscle and core muscle.
The method for handling the shear reinforcing bar according to claim 1, which is a muscle. 3. The shear reinforcement is a spiral connection of peripheral muscle and core muscle.
Reinforcement according to claim 1 or 2, characterized in that it is a sequel.
How to handle muscles. 4. A U-shaped rod body having a U-shape
Inner width is larger than thickness of shear reinforcement, U-shaped height is 1 set
Higher than the stacking height of shear reinforcement bars
A jig for holding shear reinforcing bars, which is characterized by being formed. 5. A hook formed on one upper end of the U-shape.
The holding jig for the shear reinforcing bar according to claim 5, wherein: