JPH0745779B2 - Jig for building the skeleton of a building - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a jig for constructing a skeleton of a building, and more specifically, for placing a work floor or the like on the upper floor on the floor of a lower floor or the like. It is intended to rationalize and shorten the construction of the skeleton by securing it beforehand.

(Prior Art) Generally, in constructing a construction structure, it is possible to shorten the construction period by carrying out each process such as lifting machine work, reinforcing bar arrangement, form laying, concrete placing, etc. as efficiently as possible. Will be important above.

In conventional cast-in-place concrete work,
As shown in the figure, it is general that a specific structural body such as a wall, a pillar or a beam on the Nth floor and a floor on the N + 1th floor are simultaneously cast.

(Problems to be solved by the invention) However, as for the cast-in-place concrete, the next work cannot be carried out for that portion until the predetermined strength is exhibited after the casting, so in the above example, the floor on the N + 1 floor Immediately after placing concrete, it is not possible to use the floor as a work floor to perform work on the N + 1 floor walls, columns, beams, reinforcing bars, formwork, etc., which is the biggest obstacle to shortening the construction period. It was.

Therefore, a construction method has been proposed in which the floor is molded from a PC board (pre-cast concrete board), and it is used as a work floor immediately by simply hoisting it at a predetermined position on the site.

In this case, in order to further save on-site work, we propose a method in which not only floors but also columns and beams are prefabricated as PC columns and PC beams in factories, etc., and only the joints between them are joined on site. However, in this construction method, PC floor, PC pillar and PC
Since the beam becomes a considerable weight, it is necessary to temporarily mount it at a predetermined installation position using a lifting machine such as a crane and correct dimensional errors between the positions.

However, delicate position adjustment is difficult with operation of a lifting machine such as a crane, and in the end, it often depends on the manual work of the site worker, but as described above, each member is a considerable heavy object, so once The adjustment work after mounting is very difficult, and it takes a long time for the adjustment, and when the error is large, there is a problem that the lifting machine must be lifted again and the adjustment must be performed again.

On the other hand, when the pillars and beams have an RC structure (reinforced concrete structure) that is cast in situ, when the reinforcement work of the pillars and beams and the formwork are performed at the construction site, work at high places is involved. It was necessary to work with scaffolding, which was a problem in terms of safety and workability.

Therefore, the present applicant proposed in Japanese Patent Application No. 61-137737 a pre-assembled rebar structure with a formwork, in which the formwork is also pre-assembled on the ground part to the beam or column where the pre-assembled rebar is made. I tried to solve the problem.

However, even in this case, if the floor is used as a floorboard for the PC and the work floor on the upper floor is not secured early as described above, the formwork of columns and beams with unfinished structural skeleton before cast-in-place concrete is placed. It is a heavy object on the upper part of the attached assembly rebar structure.
It is impossible to mount the PC floor board directly because of its strength.

Therefore, first of all, the concrete of the pillars and beams on the lower floor must be placed, and after the hardening of the concrete, the PC floorboard must be installed, which prolongs the construction period and defeats the initial purpose.

Furthermore, when such concrete for pillars and beams is to be placed first, it will be work at a high place from the floor below, and scaffolding and the like will be necessary, which further complicates and lengthens the work. Had.

In view of such conventional problems, the present invention has an object to provide a jig for constructing a frame of a building, which can significantly improve the work efficiency at a construction site, regardless of which construction method is adopted. To do.

(Means for Solving Problems) In order to achieve the above object, a jig for building a structure of a building according to the present invention includes at least a pair of pillar guide portions that hold the vicinity of upper and lower end portions of the pillar body, and It is characterized by integrally including a beam stand that supports the end of the beam at the upper end position of the pillar body and a slab stand that can support the floor body of the upper floor, and secures the work floor of the upper floor early and sets the installation position. We are trying to simplify the adjustment work.

(Examples) Hereinafter, preferred examples of the present invention will be described with reference to the drawings.

1 and 2 are conceptual views showing an embodiment of the present invention, in which 1 is a skeleton building jig according to the present embodiment.

The skeleton building jig 1 includes a pair of column guide portions 2 and a beam base 3
And a slab stand 4.

Further, in FIG. 2, 5 is a column body, 6 is a beam body, and 7 is a floor body. In this embodiment, the column body 5 and the beam body 6 are pre-assembled rebar structures with formwork, that is, RC. It is configured as a formwork preassembled on the ground to a unit lifting body of columns and beams with pre-assembled reinforcement for structure, and the floor body 7 is configured as a PC floor board.

The pair of pillar guides 2 are formed by previously combining four members 2a in a frame shape so as to hold the vicinity of the upper and lower ends of the pillar 5 in correspondence with the outer dimensions of the mold of the main body 5. That is, the pair of pillar guide portions 2 are arranged so as to be positioned near the upper and lower end portions of the pillar body 5 in accordance with the height dimension of the pillar body 5.

In the present embodiment, the upper pillar guide portion 2 is set so that when the pillar body 5 is arranged, the pillar guide portion 2 is at the same height as the upper end portion thereof.

Therefore, if the pillar body 5 is inserted from above the upper pillar guide portion 2 at the construction site, the pillar body 5 can be temporarily fixed at a predetermined pillar installation position.

In the present embodiment, the beam base 3 is provided integrally with the pillar guide portion 2 on the same horizontal plane as the upper pillar guide portion 2, and is strong enough to mount the end portion of the beam body 6. And is provided on both sides of the column guide portion 2.

The slab base 4 is composed of a rod configured so that the floor body 7 can be placed and supported on the upper end portion thereof, and in this embodiment, an upper and lower frame 8 having a rectangular outer shape including a column guide portion 2 and a beam base 3. , 8 are provided with four slab bases 4 to which respective corresponding corners are fixed.

In addition, the slab base 4 is configured by a so-called strong support known in the present embodiment, and the support portion 4a and the mounting portion 4b arranged at the upper and lower ends are screwed to the main body 4c, and the screwing position is set. The level can be adjusted by changing.

Next, a procedure for constructing a structure using the skeleton constructing jig 1 according to the present embodiment will be described.

First, according to the number of pillars 5 for one layer, the jig 1 is transferred onto a preformed floor 71 of a layer to be constructed, and each jig 1 is accurately positioned at a predetermined installation position. It arranges.

Then, the pillar 5 as a pre-assembled rebar structure with formwork formed in advance on the ground is lifted by a crane or the like and inserted from the upper pillar guide portion 2, and the lower end is also fitted to the lower pillar guide portion. It is inserted and further lowered until it abuts on the floor 71.

As a result, the pillar 5 is accurately and temporarily fixed at the predetermined installation position.

Next, similarly, the beam bodies 6 as the pre-assembled rebar structure with formwork are similarly lifted, and the ends of each beam body 6 are roughly positioned and placed on the beam stand 3.

Then, an operator rides on the upper frame 8 to perform accurate positioning by hand.

At this time, it is desirable that the work base plate 9 be attached to each corner portion or the like of the upper frame 8.

When the positioning of the beam 6 is completed, the floor 7 made of PC board is next.
Is placed on each slab table 4 and supported.

At this time, the distance L from the upper frame 8 to the upper end of each slab base 4 is set in advance to be equal to the beam formation of the beam body 6, so that the upper end of the beam body 6 is on the lower surface of the floor body 7. Only by touching, the floor 7 does not receive its own weight.

Then, the position of the floor 7 may be adjusted, and if necessary, the pillar 5, the beam 6, and the floor 7 may be temporarily joined by appropriate means so as not to cause a positional deviation.

In the present embodiment having such a configuration, by using the skeleton building jig 1, even if the pillars, beams and the like on the lower floor are before the concrete is placed, if the floor 7 is installed, the floor 7
Is immediately used as a work floor for the construction work on the upper floor, and is put into the preparation for building the pillars, beams, etc. on the upper floor, which makes it possible to secure the work floor on the upper floor earlier, which was not possible with the RC structure. ,
The work efficiency can be improved and the construction period can be greatly shortened.

Since the pillars 5 and the beams 6 on the lower floor can use the floor 7 on the upper floor as a working floor to perform the work of pouring concrete in-situ from the floor 7, it can be constructed as in the conventional case. Lower floor
There is no need to separately perform complicated scaffolding work on the 71.

In addition, the jigs 1 are prepared in advance in the required number for a plurality of layers, and before the concrete placing work of the pillars 5 and the beams 6 on the lower floor, the same method as described above is performed on the upper floor. By arranging the body 5, the beam 6 and the floor 7 in sequence and repeating this, it is possible to advance the temporary construction work for a plurality of layers. In this case, the pillar 5 and the beam The concrete pouring of the body 6 can be planned as a completely separate process, and a more rational construction plan makes it possible to save labor on site.

In this case, it goes without saying that the jig 1 has a strength sufficient to safely support the weight of the upper body.

In addition, the jig 1 is configured so that it can be disassembled and assembled,
The jig 1 that does not require the lower layer portion can be diverted to the upper layer one by one.

The present invention can exert a particularly remarkable effect in the case of a building having an RC structure as in the above embodiment, but the present invention is not limited to this, and in addition to the floor 7 the pillar 5 The beam 6 can also be applied to the case of using a PC member. In this case, since the load of the upper floor PC plate is not applied to the PC beam due to the presence of the jig 1, the floor PC plate is placed. It is also possible to adjust the position of the PC beam later.

Further, the present invention can be applied to the case of the SRC structure, of course, and in this case also, the operational effects according to the example of the RC structure can be obtained.

In addition, in the above-mentioned embodiment, the example in which the beam bodies 6 are all the same beam formation is shown, but it is also possible that large beams and small beams having different beam formations can be simultaneously placed on the jig 1. In this case, the level of each beam stand 3 of the large beam and the small beam may be set to different predetermined height positions in advance.

Further, the slab bases 4 do not necessarily have to be provided in one jig 1 and, for example, the floor board 7 may be supported by the two slab bases 4 having a predetermined mounting base fixed to the upper part thereof. Of course, four or more can be provided.

Further, other than the strong support as in the above embodiment, other appropriate members can be used, and the same applies to the level adjusting means.

Further, the floor board 7 does not have to be a complete PC board as in the present embodiment, but may be any one that can be used as at least an upper floor work floor.

Therefore, the applicant has previously disclosed in Japanese Patent Application No. 61-1377736, for example, a half-PC floor board 10 as shown in FIGS. 3 and 4.
11, ie, at least one on-site joint in the periphery
It is also possible to use a PC floor board in which 12 is provided, and the other peripheral portion and the central portion 13 have a completed floor portion having a predetermined thickness.

Further, the jig 1 is not limited to the one constituted by a linear member like the frame 8 or the slab base 4 as in the above-mentioned embodiment, but may be one combined with any other planar member or the like. Needless to say, various modifications are possible without departing from the scope of the present invention.

(Effects of the Invention) The present invention is configured as described above, and by using the structure building jig according to the present invention, the upper floor work floor can be secured and installed at an early stage in any structure type building. It is extremely useful because it can simplify the adjustment work, etc., can further rationalize and improve the work efficiency in the field, and can enhance the safety.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing the structure of a skeleton building jig according to the present invention, FIG. 2 is an explanatory view showing an example of construction work using the jig, and FIGS. FIG. 5 is a schematic perspective view showing another embodiment of the floor according to the present invention, and FIG. 5 is an explanatory view showing a conventional example. DESCRIPTION OF SYMBOLS 1 ... Jig for building a frame, 2 ... Pillar guide, 3 ... Beam stand, 4 ... Slab stand, 5 ... Pillar, 6 ... Beam body, 7 ... Floor body, 8 ... Frame, 9 ... Base plate, 10, 11 ... PC floorboard.

Claims (4)

[Claims] 1. A pair of pillar guides for holding the vicinity of the upper and lower ends of a pillar, a beam stand for supporting the end of the beam at the upper end of the pillar, and a floor for the upper floor. A jig for constructing a frame of a building, which is integrally provided with an ur slab stand. 2. The jig for constructing a skeleton of a building according to claim 1, wherein the column body is a pre-assembled column form with rebar or a precast concrete column. 3. The jig for constructing a skeleton of a building according to claim 1, wherein the beam body is a beam form frame with pre-assembled reinforcing bars or a precast concrete beam. 4. The jig for constructing a skeleton of a building according to any one of claims 1 to 3, wherein the floor body is a floor formwork with pre-assembled rebar or a precast concrete floor.