JPS6133174Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a support device for formwork, and more specifically, it is used when pouring concrete to form the framework of ceiling beams, floors, etc. of steel-framed reinforced concrete structures, such as high-rise buildings. The present invention relates to a formwork support device suitable for supporting side plates used in.

Generally, the design of formwork for concrete pouring is related to shoring, and it is necessary to ensure sufficient safety against the load until the concrete structure is completed, taking into consideration the shape and dimensional errors of the completed structure and the structure of the formwork. It must be designed firmly so that it will not go awry. The loads that formwork and shoring receive during construction include loads from the formwork itself, concrete, workers, construction equipment, etc., vertical loads due to impact, wind pressure, slope, water pressure, vibrations during work, etc. The resulting lateral loads and
and concrete lateral pressure, and it is extremely difficult to construct a formwork support device that can sufficiently support these loads. Furthermore, horizontal tightening shoring uses separators and clamps, but the work of attaching and detaching them is troublesome and difficult, and the number of parts is large, causing an increase in costs. Development of a support device is desired.

In other words, in order to hold the formwork, multiple rods serving as separators that are embedded in the building frame and pass through the formwork are erected laterally, and these rods are tightened with clamps, which requires work to attach the separators and clamps. This was troublesome and required a large number of parts, leading to an increase in costs. Moreover, this separator cannot be reused because it is buried inside the building frame, and the material is wasted. In addition, after the formwork is removed, the ends of the separators are exposed on the outer surface of the building frame, and these ends must be cut and finished, which significantly reduces work efficiency and reduces building efficiency. This is also a cause of increased construction costs.

Therefore, the purpose of the present invention is to form the framework of ceiling beams, floors, etc. of steel-framed reinforced concrete structures, with a small number of parts, good workability, significantly reduced construction costs, and reuse of parts, such as An object of the present invention is to provide a support device for a formwork such as a side plate.

In order to achieve this purpose, the structure of the present invention consists of a vertically erected end member, whose upper part is connected to a steel beam via a connecting member, and whose lower part is connected to a large tension member, and a direction perpendicular to the end member. A side plate fixing member consisting of a frame having an L-shaped cross section and detachably connected to the end member, a hook member provided with a hook at the tip of the L-shaped body, and a side plate abutting the side plate fixing member. The hooking member is removably hooked to the side plate fixing member via the hook, a screw hole is provided on the outer surface of the side plate, and the main body of the hooking member is screwed into the screw hole. It is something.

An example of implementing the present invention will be described below with reference to the drawings.

FIG. 1 shows a forming support 16 for a frame 9 incorporating the formwork support device of the present invention.

In this invention, as shown in Fig. 1, in a steel reinforced concrete structure, such as a high-rise building,
When forming the frame 9 such as the floor 35 and the beams 8 by pouring concrete, the concrete pouring form 1 is used.
0, 11, and 12 are supported by the shoring 16, and at the same time, on the scaffolding 17 suspended from the shoring 16, steel frame rivets, welding, reinforcement work, formwork assembly, dismantling, concrete pouring, and finishing are carried out. This allows work to be performed continuously.

The shoring 16 including the formwork support device of the present invention includes a horizontal rectangular parallelepiped or hollow quadrangular column-shaped beam support member 5, and thick members 18 that stand up on both sides of the support member 5. , joist supports 19a and 19b extending in a direction intersecting with the main pull member 5, and a joist member 18.
It consists of side plate fixing members 20 and 21 that are detachably connected to the side plates 10 and 11, and attachment members 22 and 23 that attach and detach the main pull member 5 to the steel beam 3 side. In some cases, it is possible to provide a support member for a support beam on the upper part of the thick member 18.

The tops of the plumb members 18, 18 are connected by a rod or other connecting member 24, and the center of this linking member 24 is connected to the top of the steel beam 3 by welding, bolts and nuts, or other methods, thereby connecting the plumb members 18. The main pull member 5 is connected to the steel beam 3.

In FIG. 1, the method of attaching the large tension member 5 and the hanging scaffold 17 is to first connect the large tension member 5 to the steel beam 3 on the ground surface via bolts 26 and attachment members 22 and 23, and then A hanging scaffold 17 is connected in advance to the arm or bracket 2 of this large pull member 5, and the steel beam 3, the large pull member 5, and the hanging scaffold 17 are connected in advance.
The three members are hoisted together by a crane or the like, and in this state, the steel beams 3 are temporarily fixed to install the large tension members 5 and the suspended scaffolding 17 at the frame forming position.

Next, details of the formwork support 16 will be explained.

Thick members 18 are removably connected to both sides of the large pull member 5 through sockets 25 having a U-shaped cross section, bolts 27, and nuts 28, and thereby the thick members 18, 18 are attached to both sides of the large draw member 5. He will stand on the side.

Joist supports 19a and 19b are disposed approximately at the center and on both sides of the large tension member 5 in a direction perpendicular thereto.

The central joist support member 19a has a protrusion 2 on the lower surface of the end.
By inserting this protrusion 29 into a hole formed on the upper surface of the outer tension member 5, the joist support material 19a is removably connected to the upper surface of the outer tension member 5.

Similarly to the central support member 19a, the support members 19b for the joists on both sides are made of a steel material having an L-shaped cross section, for example, and have their lower end surfaces in contact with the upper surface of the large tension member 5, and the side surfaces of the end portions are A protrusion 37 is provided to protrude laterally, and this protrusion 37 is inserted into a gourd-shaped hole 38 formed inside the lower part of the thick member 18.
The support material 19b for the joist is connected to the end member 18.

The gourd-shaped hole 38 consists of a part with a large inner diameter and a part with a small inner diameter.If the protrusion 37 is inserted into the part with the larger inner diameter and then lowered to the part with the smaller inner diameter, the flange at the tip of the protrusion 37 will adjust to the inner diameter. Protrusion 3 because it is larger than the diameter of the small part of
The support material for the joist is prevented from coming off through the joist 7.

This joist supporting material 19b supports the bottom plate 12, which is the formwork at the lower end, and the side plates 11, and thus also serves as a side plate fixing member.

One or more hollow pipe-shaped attachment members 23 pass through the main member 5 and protrude upward, and the lower end of the steel beam 3 has a threaded tube facing the attachment member 23. A bolt 26 inserted from the lower end of the large tension member 5 passes through the mounting member 23, and its threaded end is screwed into the thread of the mounting member 22 on the steel beam 3 side. As a result, the large tension member 5 is detachably connected to the H steel beam 3 via the attachment members 22 and 23 and the bolt 26.

However, the mounting members 22 and 23 are hollow bodies 40 and 41 made of metal, synthetic resin, rubber, etc., respectively.
The bolts 26 are inserted into the hollow bodies 40 and 41. Therefore formwork 1
When concrete is placed in areas 0, 11, and 12, steel beams 3 and attachment members 2 are placed inside this concrete.
2. Although the hollow bodies 40 and 41 are embedded, concrete does not adhere to the bolts 26 and can be removed once the concrete has hardened. (1st
(Figure) The thick end member 18 is composed of a hollow rectangular prism or the like, and the top part thereof may be directly connected to the steel beam 3 via the connecting member 24, but there is an intermediate part for adjusting the length in the vertical direction. A connecting member 18a consisting of a pillar body,
18b...18n can be inserted or connected by welding, joints, etc.

When connecting the connecting member 24 to the thick-end member 18, it is possible to insert a cylindrical body 42 into the top, connect a support plate 43 to this cylindrical body 42, abut a support plate 44 on the upper surface of this support plate 43, connect the two with bolts 45 and nuts 46 or by other means, and connect the connecting member 24 to the support plate 44 at the upper end by welding or other means.
7. A bracket 49 is connected via a nut 48, and a beam 50 is connected to this bracket 49 (FIG. 3).

Side plate fixing parts 20 and 21, which are lateral thick parts, are arranged inside the thick end member 18 in a direction perpendicular thereto,
These side plate fixing members 20 and 21 consist of long frames with an L-shaped cross section, and have a notch 51 at the end.
is formed, and a protrusion 52 is provided inside thereof.

On the other hand, gourd-shaped holes 38 are bored at arbitrary intervals inside the vertical end member 18, and the projections 52 are inserted into these holes 38. That is, when the protrusion 52 of each side plate fixing member 20, 21 is inserted from the large diameter part of the hole 38, and then the protrusion 52 is lowered and fitted into the small diameter part, the flange of the protrusion 52, which has a larger diameter than the small diameter part, will not come out. Thereby, each side plate fixing member 20, 21 will be connected to the thick member 18. In this case, since there is a notch 51, even if the side plate fixing members 20 and 21 are L-shaped frames, they can be inserted into the thick member 18 through this notch 51, so that they are surely held in the perpendicular direction. .

There are screw holes 5 on the outer surfaces of the side plates 10 and 11, which are the formwork.
3 is worn. On the other hand, a hook 54 is provided at the tip of the L-shaped main body 56 and a hook 55 is provided, and the hook 54 is attached to the side plate fixing member 21 via the hook 54.
is hung, a hole 57 is bored in the main body 56, and a bolt 58 inserted through this hole 57 is screwed into the screw hole 53, whereby the side plates 10 and 11 are fixed to the side plate via the hook member 55. The member 21 is drawn and held. (Fig. 4, 5
figure).

In the above-mentioned shoring 16, the scaffolding device 17 performs reinforcing work of the reinforcing bars 59 and 60, rivets and welding of the steel frame parts, and also performs all the work from assembling to dismantling the formwork.

To assemble the formwork, first connect the end members 18, 18 and the joist supports 19a, 19b to the large pull member 5, and then connect the upper parts of the end members 18, 18 to the connecting member 24.
It is connected to the steel beam 3 via the thick member 18,
Side plate fixing members 20 and 21, which are horizontally thick members, are connected to 18. Next, the bottom plate of the formwork 12 is placed horizontally on the support materials 19a and 19b for the joists, and then the formwork 1
Side plates 0 and 11 are arranged inside the thick members 18 and 18, and are connected to the hook member 55 and the side plate fixing member 2.
0 and 21 to the end members 18 and 18 and held there.

From this state, concrete is poured into the formworks 10, 11, 12, and when it hardens, the formworks 10, 1
A frame 9 having a shape divided into sections 1 and 12 is molded. Next, when dismantling this, remove the support plate 43 and the end member 18 from the support plate 44, remove the lower part of the end member 18 from the large pull member 5, and further remove the end member 18. Then, remove the side plate fixing members 20, 21 and the side plates forming the formworks 10, 11. Also, when the bolt 26 of the large pull member 5 is removed, the formwork 12
The barrel bottom plate and the main pull member 5 are removed from the steel beam 3 side.

In the above case, when all the formworks 10, 11, 12 are dismantled, the connecting rod 24, the mounting members 22, 2
3. The hollow bodies 40 and 41 are embedded in the frame 9.

As described above, the effects of the configuration of the present invention are as follows.

Since the thick end member is connected to the main member at the bottom and the steel beam at the top via the connecting member, even if a lateral load is applied from the formwork due to concrete pouring, this load will not be applied to the end. It is carried by thick members, steel beams, and large tension members.

Moreover, the side plate fixing member is connected to the end member,
Since the side plate is connected to the side plate fixing member via the hook member, there is no need for the side plate, the side plate fixing member, the separator and the clamp that support the end member as in the past. Therefore, it is not necessary to erect a separator in concrete and tighten the separator with a clamp as in the conventional method.

Since the members supporting the side plates are located outside of the side plates, they are not buried inside the frame and can be reused.

Since there is no need for a large number of separators as in the conventional method, there is no need to cut the exposed portions of the separators after forming the frame, or to perform other operations such as forming.

The end member is connected to the steel beam via the connecting member, the side plate fixing part and the main pull member are connected to the end member, and the side plate is connected to the side plate fixing member via the hook member, so the end There is no need to provide supporting members such as supports from the ground or subfloor surface that support the thick members, side plate fixing members, large tension members, and side plates, and there is a large space below the formwork support device, making it easier to work on the subfloor surface. It can be done gas-smoothly.

Since the side plate is held by the side plate fixing member via the hook member, there is no displacement of the side plate, and it is easy to attach and detach.

Since the hook member is hooked to the side plate fixing member via the hook, it is easy to attach and detach.

The screw holes in the side plate are drilled on the outer surface of the side plate and do not penetrate the side plate, so concrete, water, etc. will not leak from the screw holes.

The number of members constituting the support device is small, and it is easy to attach and detach, resulting in labor savings and cost reductions.

[Brief explanation of the drawing]

Figures 1 and 2 are front and side views of a shoring structure including a formwork support device according to the present invention, and Figure 3 is a
FIG. 4 is a perspective view of the side plate, and FIG. 5 is a perspective view of the formwork support device of the present invention. 3... Steel beam, 10, 11... Side plate, 18...
Thread member, 21... Side plate fixing member, 53... Screw hole, 54... Hook, 55... Hanging member.

Claims (1)

[Scope of utility model registration request] A thick member that stands up vertically, has an upper part connected to a steel beam via a connecting member, and a lower part connected to a large tension member, and is arranged in a direction perpendicular to the thick member and can be freely attached to and detached from the thick member. It consists of a side plate fixing member consisting of a frame with an L-shaped cross section connected to the body, a hook member having a hook at the tip of the L-shaped body, and a side plate that abuts the side plate fixing member.The hook member fixes the side plate via the hook. A formwork support device that is detachably hooked onto a member, has a screw hole provided on the outer surface of a side plate, and has a main body of the hook member screwed into the screw hole.