JPH0633115Y2 - Beam formwork assembly equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to an apparatus for assembling a beam form, and more particularly to an apparatus capable of assembling a beam form without using an intermediate separator or the like. is there.

<Prior Art> Generally, a method as shown in FIG. 6 is adopted to pour beam concrete.

That is, each of the facing molds (cushion plates) a, a is penetrated by the separator b, and both ends of the separator b are clamped to the horizontal pipe c installed on the outer surface of the molds a, a through washers and nuts, This is a structure in which the facing distance between the frames a and a is kept constant.

<Problems to be Solved by the Present Invention> The above-mentioned conventional frame forming technology has the following problems.

<A> As the height of the beam increases, the number of separators b and home ties installed increases, which requires a great deal of time and labor to attach and remove, which is uneconomical.

<B> When the beam of the building structure has an RC structure (reinforcing bar structure), the beam rebar cannot be installed if the separator b or (registered trademark) crosses the inside of the form a. With the exception of all separators b and home ties, the beam reinforcement is dropped, and then the intermediate separator b and home ties are installed.

However, in the work of installing the intermediate separator b and the like, at least two workers have to insert the space between the beam rebars while inserting the molds a and a while signaling, and it takes a lot of time and labor. It takes time.

<C> When the beam has an SRC structure (steel rebar structure), it is necessary to provide a hole e for penetrating the separator in the beam steel frame d to be installed in advance.

Therefore, it is necessary to consider the opening position of the through hole e and to perform the opening work.

<D> Various devices have been proposed in order to restrain the protrusion of the molds a, a without using the separator b.

However, when constructing using this type of restraint device, the number of constituent parts of the restraint device is large, so it takes time to assemble and disassemble,
Moreover, there is a problem that it is easy to loosen when it receives vibration.

Furthermore, there is also a drawback that the construction cost is high because the price of the restraint device is high.

<Object of the Invention> The present invention has been made to solve the above problems, and an object thereof is to provide the following beam form assembly device.

<a> Beam form assembly device that can significantly reduce the number of separators, home ties, etc. <b> Beam form assembly device that can be easily attached to and removed from the form <c> Form form Beam formwork assembling apparatus capable of easily responding to different sizes <Configuration of the Invention> Hereinafter, an embodiment of the method of the invention will be described with reference to the drawings.

<A> Apparatus used for assembly method In the assembly method of the present invention, the assembly apparatus shown in FIG. 1 is used.

That is, the assembling apparatus includes the vertical pipe 1, the head metal fitting 2 attached to the upper end of the vertical pipe 1, and the hem metal fitting 3 attached below the vertical pipe 1.

<B> Vertical Pipe As the vertical pipe 1, a known metal pipe can be used.

Therefore, the cross-sectional shape may be round or square.

<C> Head Fitting The head fitting 2 is composed of a pipe fixing cylinder 21 and an eaves plate 22 attached to the upper end of the pipe fixing cylinder 21 in an orthogonal direction.

The pipe fixing barrel 21 is a short tubular body having an inner shape equal to the outer shape of the vertical pipe 1 and capable of opening and closing.

Therefore, a hinge 23 is provided in the vertical direction on the side surface of the pipe fixing cylinder 21, and a screw type hook 26 is provided at a position facing the hinge 23 to fix the vertical pipe 1.

On the other hand, the eaves plate 22 is a plate body that covers the upper surface of the pipe fixing cylinder 21 and further projects outward in an eaves-like shape.

That is, the upper end of the pipe fixing cylinder 21 is closed by the eaves plate 22.

The length of the eaves plate 22 protruding from the pipe fixing cylinder 21 to the outside is formed to have the following length.

[Outer diameter of horizontal pipe for fixing beam form] + [plate thickness of form] Then, a downward hook 24 for fixing the form and an upward hook 25 for fixing the slab are formed at the tip of the eaves plate 22. .

<D> Hem metal fitting The hem metal fitting 3 is composed of a pipe penetrating cylinder 31 and a shelf plate 32 attached in a direction orthogonal to the pipe 31.

The pipe penetrating cylinder 31 is a short cylinder having an inner shape equal to the outer shape of the vertical pipe 1, and penetrates both the upper and lower sides.

Further, the pipe penetrating cylinder 31 is openable and closable.

Therefore, a hinge 33 is provided in the vertical direction on the side surface of the pipe fixing cylinder 31, and a screw type hook 36 is provided at a position facing the hinge 33 to fix the vertical pipe 1.

The shelf plate 32 is formed to have the following lengths.

[Outer Diameter of Horizontal Pipe Fixing Beam Form]-[Thickness of Pipe Penetration Tube 31] At the tip of the shelf 32, a contact plate 34 is formed in the orthogonal direction and downward.

A slit 35 from below is opened in the center of the contact plate 34.

<Operation of the Invention> Next, an assembling method for assembling the RC structure beam using the above assembling apparatus will be described.

<A> Assembly of Beam Formwork (FIG. 2) A slab 42 is formed by using a known beam-side formwork 4 and a bottom formwork 41.
Connect to and do the formwork.

At the time of this formwork, the head metal fitting 2 is attached to the lower surface of the slab 42.
The eaves plate 22 is fixed with nails.

At this time, the upward hook 25 of the tip of the eaves plate 22 is engaged with the end of the slab 42, and the downward hook 24 is engaged with the inside of the beam-side mold 4.

<B> Assembly of Separator (FIG. 3) Only the bottommost separator 5 is assembled by a known means.

At this time, the hem fitting 3 is attached to the fixing fitting 51 of the separator 5.

The attachment method is performed by engaging the slit 35 of the pad plate 34 with the home tie outside the separator 5.

As a result, the backing plate 34 can be reliably fixed by being sandwiched between the outer surface of the beam-side form 4 and the lateral pipe 52.

<C> Installation of vertical pipes (Figs. 4 and 5) Horizontal pipes 53 are installed horizontally on the side surface of the beam-side form 4 and in several stages.

On the other hand, the vertical pipe 1 is passed through the pipe penetrating cylinder 31 of the hem fitting 3 from below.

Then, the upper end of the vertical pipe 1 is inserted into the pipe fixing cylinder 21 of the head fitting 2.

If the threaded hooks 26 and 36 of the tubes 21 and 31 are screwed in this state, the vertical pipe 1 firmly holds the beam-side form 4 from the side surface via the horizontal pipe 53.

<Other Embodiments> The case where the round pipe is used has been described above, but the pipe fixing cylinder 21, the pipe penetrating cylinder 31, and the vertical pipe 1 are described.
Can also be formed in a rectangular cross section.

<Effects of the Present Invention> Since the present invention is as described above, the following effects can be expected.

<A> When concrete is poured into the beam form, the pressure is first transmitted to the vertical pipe 1 through the horizontal pipe group.

However, since the upper end of the vertical pipe is engaged with the end of the slab 42, it does not fall outside.

Further, since the lower portion of the vertical pipe is fixed to the separator provided at the lowest stage, it is possible to reliably prevent the mold frame from protruding due to concrete pressure.

<B> When constructing a steel-framed concrete structure part, according to the conventional method, it was necessary to previously open a hole for penetrating the intermediate separator in the beam steel frame.

However, according to the assembling method using the device of the present invention, since the vertical pipe is used, an intermediate separator other than the lowermost stage is unnecessary, and therefore it is not necessary to open a hole for penetrating the separator in the beam steel frame.

<C> Since it is not necessary to insert an intermediate separator or the like after dropping the reinforcing bar into the formwork, the production time and the disassembly time of the formwork can be greatly shortened.

<D> Regardless of the total length of the vertical pipe, the height of the beam can be adjusted by the hem fittings.

Therefore, it is possible to easily deal with the case where the heights of the beams are different.

<E> The assembly can be completed by simply engaging the hook at the upper end of the vertical pipe with the slab and engaging the surface of the backing plate at the lower end with the home tie.

Therefore, the beam form can be easily assembled and removed.

<F> Not only the formwork for beams, it can be applied to formwork for various purposes such as columns and walls, and has wide versatility.

<G> Since the structure is simple and the number of constituent parts is small, the product cost can be reduced.

<H> Since the head metal fittings and the hem metal fittings can be securely locked to the upper and lower parts of the beam-side formwork, there is no risk of these metal fittings coming loose or coming off even when subjected to vibration, and the beam formwork is firmly restrained. it can.

[Brief description of drawings]

 1 is a perspective view of an assembling apparatus used in the method of the present invention. FIGS. 2 to 5 is an explanatory view of a construction method.

Claims (1)

[Scope of utility model registration request] 1. A device used when assembling a beam form by connecting to a slab, comprising a vertical pipe arranged outside the beam side form, and detachably attached to an upper part of the vertical pipe. A head metal fitting for restraining the upper part of the beam-side formwork, and a hem fitting detachably attached on the way of the vertical pipe and restraining the lower part of the beam-side formwork, wherein the head metal fitting is a vertical pipe. Detachable pipe fixing tube, eaves plate extending horizontally from the pipe fixing tube, slab formed by bending the tip of the eaves plate up and down, and a plurality of hooks that are locked to the upper part of the beam-side formwork The hem metal fitting is provided with a vertical pipe that is slidably mounted on the vertical pipe, and a detachable pipe penetrating cylinder to the vertical pipe, and an L-shaped shelf plate horizontally extending from the pipe penetrating cylinder. Is a separator that is laid across the lower end of the beam formwork at the tip. Having engageable slit beam formwork assembly device.