JPS60115771A - Temporary established extensible beam apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a temporary telescopic beam device, which can be easily used when constructing a floor slab in a concrete building, and is particularly suitable for removing beam formwork when supporting the beam formwork at both ends. This invention relates to a temporary telescoping beam device that is easy to mold, allows for smooth reuse, and allows easy load support.

Traditionally Conch! J-G (When constructing floor slab formwork for a single building, temporary beam equipment for concrete slabs should be installed between the beam formwork or wall formwork that has been constructed as a structure to provide temporary support for the formwork for the floor. I'm letting you cross the bridge.

This temporary beam device is suitable for pouring concrete materials,
Since it is necessary to firmly support the formwork and other electrically charged objects, for example, Japanese Utility Model Publication No. 52-51860, No. 53-12.
It has a truss structure as in Publication No. 18, and
Utility Model Publication No. 56-75255, No. 1 Tsukasa 56-75256
Publication No. 56-75257, No. 56-822
No. 54, ]] Tsukasa No. 56-82255, which is fixedly supported at the upper end of the beam form via a receiving metal fitting. However, these brackets are fitted onto the upper end of the beam formwork with a U-shaped fitting part, so even if the temporary beam device can be removed, it cannot be removed without demolding the beam formwork. In the end, even if the construction of the beam section is completed and the beam formwork can be demolded, the beam formwork cannot be demolished unless the entire temporary beam system is removed after the floor slab construction is completed. There wasn't. Therefore, although the key to reducing the cost of formwork work is to facilitate the conversion of equipment and other equipment, this was completely impossible with the conventional system until the floor slab was cured. In addition, in other conventional construction methods, many supports are erected and joists (dog pullers) are temporarily placed to support the floor slab formwork.

There is a problem with the structure of the support, and not only is it difficult and unstable to work on, but the support is not only inefficient and unstable, but also can be damaged by nails etc.
It was troublesome even if I wanted to try to find the key of E first level. In history, we frame outer frame members, inner frame members, beam members, etc.
In floor slab formwork construction using frame supports made up of interconnected bracing members, etc., even if the construction is stable, many members are erected and framed under the slab, resulting in damage to the area under the slab. The problem was that the space could not be used effectively.

Therefore, the present invention was created in view of the various drawbacks of the conventional construction method system as described above, and its gist is that the central beam member has a connecting portion y protruding downward from both ends, and a The central beam member is extendable and slidably arranged at both ends, and a pair of side beam members on the left and right are provided with hanging portions at the ends that are nailed to the upper end surface of the beam formwork. , the height pA that is fitted and connected to the upper end connector OT
a bracing member that is swingably pivoted to a pivot point provided on the center beam member and connected diagonally to a connection portion on the upper part of the support member; and a connection portion of the support member. An embodiment of the present invention will be described below with reference to the drawings.

Reference numeral 1 shown in the figure is a central beam member having connecting portions 2 projecting downward from both ends, and is formed of, for example, a square pipe material having a predetermined size and a rectangular cross section. Reference numeral 3 denotes a pair of left and right side beam members that are extendable and slidable at both ends of the central beam member 10, and at the ends are beams that are framed at an appropriate temperature to construct a beam section. A hanging portion 4 is provided which is nailed to the end face of the formwork W11. This side beam member 3 is formed of, for example, a corner with a rectangular cross section and 5 ribs, and is configured so that the entire combination can be expanded and contracted by fitting it into the central beam member 1 in a sliding groove. For example, the length of the central beam member 1 is set to 2000+ m, and the maximum extension length of the side beam members 3 is set to 900 m, so that the overall length can be adjusted within a range of 2140 to 3800 mm. After adjusting the lengths of the central beam member 1 and the side beam members 3, support and fixation is as shown in the figure (1).
Butterfly bolt 5tk screwed in from the outside (Ill) at the end: By pressing the end against the 3 sides of the side beam member, stepless length adjustment is possible.Also, although not shown, the side beam member A wedge, bottle material, etc. may be inserted into the adjustment holes drilled at predetermined intervals in the center beam member 1 into the adjustment holes drilled at predetermined intervals in the center beam member 1. The abutment piece 4A with a nail hole 4C drilled on the end face of W11 and the connecting piece 4B connected to the 3 ends of the side beam member by welding etc. are bent into an abbreviated shape when viewed from the side. The connecting piece 4B is set higher than the upper surface of the side beam member 3 by an amount corresponding to the diameter of the joist material P placed on the central beam member 1 and the side beam member 3. The portion 4 may be integrally formed with the side beam member 3.

First, as shown in the figure, by tilting the connecting piece 4B, it becomes easier to engage the beam formwork Wl, etc., and the robustness is improved.
x j! Let's make it four big.

The central beam member 1 is supported at a predetermined height by being connected to support members 6 which are protruded from both ends thereof and which are erected on an existing floor or other surface via one connecting portion 2. The upper end of the support member 6 is fitted and connected to the connecting portion 2, and the support member 6 is formed to be height adjustable. That is, the upper end of the pipe body is designed to fit inside or outside the connecting part 2, and usually has a jagged shape, and the lower end has a jack part 7. This makes it possible to adjust the overall cylindrical size.

-1: A pivot part 9 is provided on the center beam member 1, and the bracing member 10, which is swingably pivoted to the pivot part 9, is connected to the upper part of the support member 6. It is designed to be connected to the other parts in the same way. The pivot portion 9 includes, for example, a pivot pin that is inserted through one end of the bracing member 10 between a pair of pivot plates that are vertically disposed facing each other substantially at the center of the central beam member 1. It consists of The muscular part tK10 itself is formed of a pipe with an appropriate diameter, and a cow blood U-shaped connecting piece 11 is connected to the other end. By inserting the connecting bottle 12 through the hole 8 and also through the connecting piece 11, it is connected to the support member 6.

Separately, there is a tension member 13 connected to the connecting portion of the support member 6 and installed between the support members 6 and having an adjustable length. The connecting piece 14 is screwed into a turnbuckle shape, and as shown in FIG. 4, the bracing member 10
The connecting pin 12 and the connecting piece 11 are inserted into the connecting hole 8 to be connected to the mountain-boat member 6.

At this time, by connecting the connecting bottle 12 to the connecting piece 14 by a chain or the like, loss can be prevented and one operation can be carried out smoothly. Since the bracing member 10 swings, a clip 15 that elastically expands forcibly is attached to the end of the central beam member 1 to facilitate storage when not needed. The safety of the work is taken into consideration.

In addition, 16 in Figure 1 is a support member having clamp fittings 17 at both ends in order to connect the support members 6 to each other at approximately the center position, and 18 is a support member from which the beam formwork W1 and other parts are to be removed (work scaffolding board). This is a scaffold support bracket for supporting 19.

The present invention is constructed as described above, and when used, the side beam members 3 are slidably disposed on both ends of the central beam member 1 and assembled together, as shown in FIG. , the overall length is adjusted in accordance with the length between the beam forms W1 which have been framed appropriately, and rA! : Attach the hanging part 4 to the end surface of the formwork W11 with the nail 1
Erection is done by dipping. Next, the pair of left and right support members 6 are made to stand up, and their upper ends are fitted and connected to the connecting portion 2, and the ends of the diagonal bracing members 10 and the ends of the tension members 13 installed between the support members 6 are connected. is connected to the connection portion of the support member 6. After adjusting the height of each of the support members 6, a joist material P made of pipe material or Bata square material is placed on the central beam member 1° and the side beam member 3.
The floor slab formwork νV2 is stretched and concrete material C is poured. After the construction of the beam section is completed, if necessary, use the scaffold board 19 placed on the support member 6 via the scaffold support bracket 18 to complete the beam form W1'9! :It is a removable item. After the curing period of the floor slab has elapsed, the entire support member 6 is lowered evenly, the joist material P is pulled out, and the bracing member 10. Remove the tension member 13. The bracing member 10 should be gripped and fixed to a clip 15, for example, and the side beam member 3 should be pushed into the center beam member 1 and the hinge gel 5 should be inserted.
etc., and by removing the support member 6, the whole can be disassembled.

Therefore, since the hanging part 4 of the side beam member 3 is only hooked up to the end face of the beam formwork W11, it becomes easy to demold the beam formwork W1 after the beam part construction is completed, and the beam It facilitates the reuse of formwork W1 and greatly contributes to reducing construction costs.

In addition, the support member 6 connected to both ends of the central beam member 1 has a bracing member 10 pivotally connected to the center beam of the central beam member 1 and a tension member 13 installed and connected between the support members 6 at the connecting portion. By connecting to the truss structure, the whole becomes an integrated truss structure, which is suitable for supporting loads.
You can expect efficient and stable work. Not only that.

There is no need to provide support at approximately the center of the central beam member 1, and the total number of support members 6 used can be reduced, and the space below the slab can be used effectively.

Conventionally, during demolition, a simple method was used to remove the joists by thinning out the support members supporting the dog puller, connecting a string to it, and pulling it down.
For this reason, together with the fact that the dog puller and the support are not connected as one body, the floor may be damaged.However, in the present invention, the connecting portions protruding downward from both ends of the central beam member 1 are used. 2 and the upper end of the support member 6 are fitted and connected,
There are no such drawbacks.

Since a pair of left and right side beam members 3 are disposed at both ends of the central beam member 10 so as to be extendable and slidable,
As shown in the figure and FIG. 6, the overall length can be adjusted arbitrarily to correspond to the length of the floor slab to be constructed, and the central beam member 1 and support member 6 are fitted and connected via the connecting part 2. Because of this, it is integrated and suitable for supporting loads,
This goes hand in hand with the fact that the support member 6 itself is height adjustable.

The floor slab can be reliably supported at a predetermined height position.

As explained above, 1 Thus, 1 According to the present invention, it can be easily used when constructing a floor slab, and demolding of the beam formwork when supported by the beam formwork at both ends is effective for curing the floor slab. This allows the beam formwork to be repurposed even before the end of the period, which in turn makes it possible to reduce the overall construction cost. It has excellent effects.

[BRIEF DESCRIPTION OF THE DRAWINGS] The drawings show one embodiment of the present invention, and FIG. 1 is an exploded perspective view with some parts omitted, FIG. 2 is a side view with some parts omitted in use, and FIG. FIG. 6 is a side view of the main part, and FIG. 4 is a perspective view of the connecting portion. C... Concrete material, P... Joist material, wl-...
Beam formwork, W2°°° floor slab formwork, 1"...Central beam member, 2...Connection part, 3...Side beam member, 4...
・Hanging part. 4A--Contact piece, 4B--Connection piece, 4C--Nail hole, 5--Butter bolt, 6--Support member, 7--
Jyatsuki club. 8°...connecting hole, 9...pivot part, io゛-° bracing member, 11°°° connecting piece, 12°...connecting bottle, 13...
tensile member. 14-=Connecting piece, 15...Clip, 16... Root hanging member, 17° Clamp fitting, 18... Scaffold receiving bracket, 19...° Scaffold board.

Claims (1)

[Claims] 1. A central beam member with connecting portions projecting downward at both ends, and a hanging that is extendable and slidable at both ends of the central beam member and is nailed to the upper end surface of the beam formwork. A pair of left and right side beam members each having a section at the end thereof, a support member whose upper end is fitted and connected to the connecting section π and whose clearance height can be adjusted, and a central beam member (pivotally mounted approximately at the center shaft) 1f. a bracing member that is movably pivoted and diagonally connected to a connecting portion on the upper part of the support member; a length-adjustable tension member that is connected to the connecting portion of the support member and installed between the support members; A temporary telescoping beam assembly characterized by being equipped with.