JP2016017381A - Single pipe fitting seat for beam and other members of steel temporary beam, and work floor construction method using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an appropriate jig for installing a firm work floor and a work floor construction method using the jig, on a flange of a beam made of an H-steel of an existing building, or on a flange of a steel material spanned on the beam or on a beam part of a steel temporary beam, using only a skill acquired by a worker.SOLUTION: A single pipe fitting seat 1 is for fitting a single pipe for constructing a work floor on a beam and other members of a steel temporary beam, the single pipe fitting seat comprising a short single pipe 2 and two plate materials fixed on both ends of the pipe. The two plate materials have the following members installed: an A protrusion 4 facing downward and having a protrusion 7 for embracing the beam and other members of the steel temporary beam; and a B protrusion 5 facing downward and having a set screw 8 for pressing and fixing the beam and other members of the steel temporary beam on the A protrusion 4. In a method for constructing the work floor, a single pipe 11 for constructing a work floor is fitted on the single pipe fitting seat 1 using a double single-pipe clamp 14, and a scaffold plate 13 is fixed on the single pipe.SELECTED DRAWING: Figure 2

Description

  The present invention includes a jig for attaching a single pipe (hereinafter referred to as “single pipe”) to a beam portion of a steel temporary beam or a flange of an H-shaped steel (hereinafter referred to as “beam of a steel temporary beam or the like”), and The present invention relates to a method for constructing a work floor (hereinafter referred to as “work floor”) using the work.

  For workers involved in construction work, single pipes are connected with two orthogonal single pipe clamps or two universal single pipe clamps (hereinafter referred to as “two single pipe clamps”), and a scaffolding plate is placed there. Building a scaffold in a fixed manner is a very basic skill that must be acquired first, and it is no exaggeration to say that it is a skill that everyone is familiar with.

  On the other hand, in the middle of construction work or remodeling work, a single pipe is attached to the flange of the beam using a beam made of H-shaped steel of the already built structure, and the scaffolding plate is attached to the single pipe. It is often done to provide a working floor with a fixed. This is because the work floor is also used as a storage place for heavy materials and a passage for carrying in and out of the work floor. Therefore, it is desirable that the work floor is a strong floor that can apply a load firmly to the beams of the building.

  In order to attach a single pipe to an H-shaped steel beam, as described in Patent Document 1 or Patent Document 2, various jigs that combine a steel clamp and a single pipe clamp are considered. However, these jigs are slightly different from the dual single tube clamps that all workers are familiar with. Further, since the flange portion of the H-shaped steel is gripped only by the tightening force of one bolt, there remains anxiety about the certainty.

  When the gap between the beams made of H-shaped steel is wide and the strength is insufficient when the single pipe that supports the scaffolding plate is directly spanned, another space is provided on the beam of the H-shaped steel with an appropriate interval. It is common to hang a steel material such as an H-shaped steel, arrange a single pipe on it, and lay a scaffolding plate. However, fixing the single pipe has the same problem as described above. Moreover, the weight of the additional steel material is bulky and uneconomical, and the workability is not good.

  A steel temporary beam (called “Pecobeam (registered trademark)”) used as a concrete formwork support beam may be used instead of the steel material hung over the H-shaped steel beam. There are no jigs on the market for attaching a single tube to a beam of temporary beams, and there is no published literature on how to attach it. If it is a jig which fixes a single pipe to a beam using the chain described in patent documents 3, it will be applicable also to the beam of a steel temporary beam, but this is also the skill which all the workers have mastered. Yes, it ’s slightly different. In addition, it is not suitable for constructing a scaffold that is completely fixed to pass through the chain, and the load on the single pipe is not directly applied to the beam from above, so there is uncertainty about the certainty as a work floor. .

Registered Utility Model No. 3000733 Japanese Patent Laid-Open No. 11-12502 Japanese Utility Model Publication No. 5-24792

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  Therefore, the problem to be solved by the present invention is that a flange of a beam made of H-shaped steel of a building already constructed, or a steel flange or a steel temporary beam (hereinafter referred to as “beam”) On top of the beam of steel temporary beams, etc.), using only the skill that the worker is familiar with, a jig suitable for providing a solid work floor and a work floor using it. Is to provide a way to build.

The present invention that solves the above problems attaches a single pipe (hereinafter referred to as “single pipe”) to a beam portion of a steel temporary beam or a flange of an H-shaped steel (hereinafter referred to as “beam of a steel temporary beam”). A single tube mounting seat for
It has a short single pipe and two plates fixed to both ends.
Each of the two plate members has a downward A having a projection that holds the beam of the steel temporary beam when the single tube mounting seat is placed on the beam of the steel temporary beam. A single tube mounting seat provided with a protruding portion and a downward B protruding portion having a set screw for pressing and fixing the beam of the steel temporary beam to the A protruding portion.

  The present invention is a seat for attaching a single pipe for constructing a work floor (hereinafter referred to as “single pipe for constructing a work floor”) to a beam or the like of a temporary steel beam. It has a short single tube for fixing with a double single tube clamp. The short single pipe should just have the length which can perform the fixing operation | work using a double single pipe clamp without trouble.

  Two plate members are fixed to both ends of the short single pipe by welding or the like. Each of the two plate members has a downward A protruding portion having a projection for holding a beam of a steel temporary beam, and the steel plate. A downward B projecting portion having a set screw for pressing and fixing the beam or the like of the temporary beam against the A projecting portion is provided.

  In other words, each of the two plate members is provided with a U-shaped opening facing downward so that the single tube mounting seat is placed on the beam of the steel temporary beam, etc. The two downward projecting portions constituting both sides of the opening are the A projecting portion and the B projecting portion referred to here. In order to allow the single tube mounting seat to be stably placed on the beam of a steel temporary beam, the upper ends of the U-shaped openings of both plates are almost equal from the center of the short single tube. It is desirable that the distances be parallel to each other.

  In order to place the single tube mounting seat close to the beam of the steel temporary beam from above and place it over the beam, the width of the U-shaped opening is such that the beam of the steel temporary beam is the A protrusion Set the tip so that it can be easily inserted inside the tip. After the protrusions of the A protrusions have been displaced and the single tube mounting seats are placed on the beam of a steel temporary beam, the single pipe mounting seats are made of steel using the set screws provided on the B protrusions. Securely fix the beam on the temporary beam.

  When the fixing is completed, the single pipe for working floor construction is attached to the single pipe having a short single pipe mounting seat by using a double single pipe clamp. That is, a single pipe having a short single pipe mounting seat is a base point for mounting a single pipe for constructing a work floor. The work of attaching the single pipe for constructing the work floor to the single pipe mounting seat using the double single pipe clamp and the subsequent work can be carried out only using the skill that the worker has mastered.

  Since the single tube mounting seat is stably placed on the beam of a steel temporary beam or the like, the load applied to the single tube for constructing the work floor is simply applied from above via a double single tube clamp. It is transmitted to the short single tube of the tube mounting seat, and further transmitted from the top to the bottom through the two plates to the beam of the steel temporary beam. Therefore, it is possible to construct a durable work floor that securely receives a load such as a heavy object that is stored on it or carried in / out.

  Unlike using steel clamps that hold the H-shaped steel flange with only one bolt tightening force, even if the set screw provided on the B protrusion is somewhat loose, the single tube mounting seat There is no risk that it will come off the steel temporary beam. Moreover, the single tube mounting seat is installed on a horizontal steel temporary beam, etc., and the force received from the work floor is basically transmitted from top to bottom. This is a very stable base point for installing a single pipe for constructing a work floor.

  Further, the present invention for solving the above-mentioned problems is to fix the single pipe mounting seat according to claim 1 to a beam or the like of a steel temporary beam and attach the single pipe to the short single pipe using a double single pipe clamp. In this method, a working floor is constructed by fixing a scaffolding plate to the attached single pipe.

  Using a single tube with a short single tube mounting seat fixed to a beam of steel temporary beams as a base point, a single tube for working floor construction is attached and fixed using a double single tube clamp. The work floor is constructed by fixing the scaffolding plate to the pipe. Only the skill to connect the single pipes that all the workers are familiar with with two single pipe clamps and fix the scaffolding board there to build the scaffolding is used. The fact that work can be performed using only the skill that has been learned contributes to the improvement of work efficiency and safety.

  In addition, as described above, the single tube mounting seat having a short single tube as a base point is fixed to a beam of a steel temporary beam with extremely high reliability. Construction work is done safely and efficiently, creating a reliable and durable work floor.

  By using the single tube mounting seat to the beam or the like of the steel temporary beam according to the present invention, the work floor is constructed on the beam of the steel temporary beam or the like using only the skill that the worker has mastered. be able to. Since the load applied to the work floor constructed as described above is applied to the beam of the steel temporary beam or the like directly from the single tube mounting seat, a highly reliable and durable work floor can be constructed. Further, the fixing of the single-tube mounting seat to the beam of the steel temporary beam is extremely easy, and it is reliable because it has extremely high reliability without being displaced or detached.

  In addition, by using the work floor construction method of the present invention, the single pipes are joined together by two single pipe clamps, and the scaffolding plate is fixed there, using only the skills that all workers are familiar with. Since the floor can be constructed, it contributes to the improvement of work efficiency and safety. In addition, since the single pipe mounting seat is fixed to a beam of a temporary steel beam or the like with extremely high reliability, the work floor construction work can be performed safely and efficiently from this aspect.

It is the front view (a) and side view (b) of Example 1 of the single tube attachment seat of this invention. It is a perspective view which shows the state which fixed the work floor construction single pipe using the single pipe attachment seat, and attached the scaffolding board to the single pipe. It is a side view of Example 2 of the single tube mounting seat of the present invention. It is explanatory drawing which shows the work floor construction method of this invention.

  Embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to such an embodiment, and it goes without saying that various modifications may be made to the specific structure within the scope of the present invention.

  FIG. 1 is a front view (a) and a side view (b) of a single pipe mounting seat 1 according to a first embodiment of the present invention, and FIG. 2 is a single pipe 11 for constructing a work floor using the single pipe mounting seat 1. It is a perspective view which shows the state which fixed to the beam part 12 of steel temporary beams, and attached the scaffold board 13 to the single pipe for work floor construction.

  The single tube mounting seat 1 according to the first embodiment is fixed to the short single tube 2 for fixing the work floor construction single tube 11 using a double single tube clamp 14 and to both ends of the short single tube by welding or the like. The two plate members 3 each have a downward A protrusion 4 having a projection 7 shaped to hold a beam portion 12 of a steel temporary beam, and a beam portion of the steel temporary beam. And a downward B projecting portion 5 having a set screw 8 that presses the A projecting portion against the A projecting portion.

  As can be seen from FIG. 1B, each of the two plates has a downward U-shaped opening 6 so that the single tube mounting seat 1 can be placed on the beam portion 12 of the steel temporary beam. The two downward projecting portions provided and constituting both sides of the U-shaped opening 6 are the A projecting portion and the B projecting portion referred to here.

  In order to place the single tube mounting seat 1 close to the beam portion 12 of the steel temporary beam from above and to straddle it, the width of the U-shaped opening 6 is set to be equal to the beam portion 12 of the steel temporary beam. Is set so that the projection 7 at the tip of the A protrusion 4 can be easily inserted. After the projection 7 of the A projecting portion is displaced and the single tube mounting seat 1 is placed on the beam portion 12 of the temporary steel beam, the single tube mounting is performed using the set screw 8 provided on the B projecting portion. The seat 1 is firmly fixed to the beam portion 12 of the temporary steel beam.

  When the fixing is completed, the work floor construction single pipe 11 is attached to the short single pipe 2 using the double single pipe clamp 14. That is, the single pipe 2 having a short single pipe mounting seat is a base point for mounting the single pipe for constructing the work floor. After that, the scaffolding plate 13 may be fixed to the work floor construction single pipe 11.

  The work of attaching the single pipe 11 for constructing the work floor to the short single pipe 2 serving as the base point by using the double single pipe clamp 14 is a skill that every worker is familiar with. The work of fixing the scaffolding plate 13 to the single pipe for constructing the work floor is also a skill that all workers are familiar with. In other words, the work floor can be constructed using only the skills that the worker has mastered.

  In FIG. 2, the scaffolding plate 13 is secured to the single pipe 11 for constructing the work floor by using the wire 15, but the “scaffolding plate” described in the published utility model No. 1-163642 is disclosed. A jig such as a “fixing bracket” may be used. In any case, it is important to adopt a method that workers are familiar with.

  1 and 2 show a state in which the single tube mounting seat 1 is attached to the beam portion of the outer beam of the steel temporary beam. The steel temporary beam has a structure in which the outer beam 16 and the inner beam 18 are combined as shown in FIG. 4, and the entire beam length 17 can be adjusted in accordance with the temporary span. The beam portion 19 of the inner beam is fitted and slidable. Therefore, in the beam portion 17 of the outer beam and the beam portion 19 of the inner beam, the latter has a slightly smaller size than the former. The set screw 8 for the single tube mounting seat produced for the beam portion of the beam may be tightened to correspond to the beam portion 19 of the inner beam.

    FIG. 3 is a side view of the single tube mounting seat 1a according to the second embodiment of the present invention. Components having the same functions as those of the first embodiment and having almost the same form will be described using the same names and the same numbers for easy understanding.

  This single pipe mounting seat 1a is for mounting on the flange 21 of the H-shaped steel 20, and its main configuration is the same as the single pipe mounting seat 1 of the first embodiment. It consists of a short single pipe 2 for fixing a single pipe for constructing a work floor, and two plate members 3 fixed to both ends of the short single pipe by welding or the like. Each of the two plate members is an H-shaped steel 20. A downward A protrusion 4 having a projection 7 that holds the flange 21 and a downward B protrusion 5 having a set screw 8 that presses and fixes the flange 21 against the A protrusion are provided. The front view of the single tube mounting seat 1a is omitted because it is almost the same as FIG. 1 (a).

  The single pipe mounting seat 1a is used for a flange of a beam made of H-shaped steel of a building that has already been constructed, or a flange of a steel material spanned over the beam. The dimension of the downward U-shaped opening 6 formed by the B protrusion 5 is determined in accordance with the dimension of the flange 21 of the H-shaped steel to be installed. Compared to the beam part of a steel temporary beam, the dimensions of which are almost fixed, the H-shaped flange has a wide variety of flange dimensions, so the single pipe mounting seat 1a can be adapted to the dimensions of the H-shaped steel to be used. There will be many different dimensions.

  FIG. 4 is an explanatory diagram showing the work floor construction method of the present invention. In this case, there is an existing building composed of columns 24, beams 25, 26, 27, etc., and the space between the beam 25 and a beam (not shown) that runs parallel to the beam 25 on the near side. Is trying to provide a work floor.

  However, the distance between the beam 25 and the beam running in parallel with the beam 25 is wide, and if a single pipe is spanned between them, the load applied to the work floor cannot be supported. Temporary beams 28 are installed. Depending on the required working floor area, not only one but several steel temporary beams may be provided in parallel.

  The steel temporary beam 28 has a structure in which the beam portion 19 of the inner beam 18 is fitted to the beam portion 17 of the outer beam 16 and is slidable. The length of the steel temporary beam 28 is adjusted according to the span between the spanned beams. The claw portion 16a provided at the end can firmly fix the beam 27. A claw similar to the outer beam is also provided at the end (not shown) of the inner beam 18, and a beam (not shown) that runs parallel to the beam 27 in the right direction of FIG. It is firmly fixed by the nail part.

  Considering the length of the scaffold plate 13, the arrangement of the work floor construction single pipe 11 is determined, and the single pipe mounting seat is arranged at a position where it is fixed. The single-tube mounting seat 1 of the first embodiment is disposed on the steel temporary beam 28, and the single-tube mounting seat 1a of the second embodiment is disposed on the H-shaped steel beam 25. Use the setscrews to secure them firmly.

  A single pipe 11 for working floor construction is attached to these single pipe mounting seats 1, 1 a using a double single pipe clamp, a scaffolding plate 13 is arranged on the single pipe 11, and work floor construction is performed by fixing means such as a wire 15. If the single tube 11 and the scaffolding plate 13 are fixed, a solid work floor can be constructed.

  Only the skill to connect the single pipes that all the workers are familiar with with two single pipe clamps and fix the scaffolding board there to build the scaffolding is used. The fact that work can be performed using only the skill that has been learned contributes to the improvement of work efficiency and safety.

  In addition, since the single tube mounting seats 1 and 1a are fixed to a beam of a steel temporary beam with extremely high reliability, the work floor construction work can be performed safely and efficiently from this aspect. It is possible to create a reliable and durable work floor.

1, 1a Single tube mounting seat 2 Single tube short single tube mounting plate 3 Same 2 sheets 4 Same A protrusion 5 Same B protrusion 6 Same Downward U-shaped opening 7 A Protrusion protrusion 8 B protrusion Set screw 11 Single pipe for work floor construction 12 Beam of steel temporary beam 13 Scaffold plate 14 Duplex single pipe clamp 15 Wire 16 Outer beam of steel temporary beam
17 Beam portion of outer beam 18 Inner beam of steel temporary beam 19 Beam portion of inner beam 24 Pillars 25, 26, 27 of existing building Beam 28 of existing building Steel temporary beam

Claims (2)

This is a single pipe mounting seat for attaching a single pipe (hereinafter referred to as “single pipe”) to a beam part of a steel temporary beam or a flange of an H-shaped steel (hereinafter referred to as “beam of a steel temporary beam”). And
It has a short single pipe and two plates fixed to both ends.
Each of the two plate members has a downward A having a projection that holds the beam of the steel temporary beam when the single tube mounting seat is placed on the beam of the steel temporary beam. A single-tube mounting seat provided with a projecting portion and a downward B projecting portion having a set screw for pressing and fixing the beam of the steel temporary beam against the A projecting portion.   The single tube mounting seat according to claim 1 is fixed to a beam or the like of a temporary steel beam, and two short single tube clamps or a universal single tube clamp (hereinafter referred to as “double single tube clamp”) is attached to the short single tube. A single pipe is attached to the attached single pipe, and a scaffolding plate is fixed to the attached single pipe to construct a work floor (hereinafter referred to as “work floor”).

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