JPS6013113B2 - Support framework for slab construction - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a support frame for constructing slabs in multi-story reinforced concrete structures, and in particular is designed to prevent the construction load of upper floors from directly acting on slabs of lower floors.

Conventionally, when constructing slabs for each floor of a multi-story reinforced concrete structure such as an apartment complex, for example, "as shown in Figure 1, the slab lc on the N floor to be constructed and the slab lb on the N-1 floor that has already been constructed. Supports 2 are installed vertically between the slab lb on the N-1 floor and the slab la on the N12 floor that has already been horizontally constructed, and the weight of the slab lc on the N floor to be constructed is The construction load and the self-weight of the constructed N-1 floor slab lb are calculated by each support 2.
The load was applied as a vertical load on the la surface of the slab on the N-2 floor, which had already been constructed.

Therefore, in such a conventional example, the total load of the construction load of the N-floor slab lc to be constructed and the dead weight of the N-1 floor slab lb is applied to the N-2 floor slab la surface. become.

For this reason, an excessive overall load and an excessive moment will be applied to the slab on the lower floor, and it will be necessary to provide reinforcement measures such as small beams to the slab on the lower floor. Therefore, extra work is required, and the cost of reinforcement increases. It is an object of the present invention to provide a support framework for slab construction that eliminates the above-mentioned drawbacks, prevents the load during construction of the upper floor from being directly transmitted to the slab of the lower floor, and is easy to construct.

Next, the present invention will be explained with reference to FIGS. 2 to 6.

A supporting frame 8' for slab construction is installed between the slabs 4a and 4b on each floor and the frame c, as shown in Figure 2.
Both sides of the lower end of the support frame 3 for constructing each slab are located at the corners of each slab 4a and base b, respectively, and the rising sides of the support frame 3 are divided into approximately three parts of each slab. The Q support frame 3, which is located at a point, consists of a pair of oblique support columns 5 that are obliquely shaped like a figure eight, a horizontal section 6 that connects the upper ends of the oblique support columns, and one inclined oblique support frame 3. It consists of a pair of braces that connect the upper end of the strut 5 and the lower end of the other head oblique strut 5, and a height adjustment member 8 for adjusting the height of the framework made up of these braces.

The connection between the inclined column 5 and the horizontal member 6 is made through the connecting fittings 9 shown in FIG. Insert the upper end of the tilted support 5 and press the blue pin 1 provided on the mirror tilted support 5.
is engaged with the hole in the cylindrical wing Q.

A holding groove 2 is formed in the center of the connecting fitting 9 and penetrates in the vertical direction, and a screw head 4 of the height adjusting member 8 shown in FIG. 4 is inserted into the holding groove 2. The screw shank 14 has a holder 16 on its upper end that is attached to the joist 5 provided on the lower side of the slab, and when a nut member 17 having a handle is screwed onto the screw shank 4, the nut member 7 is screwed. By rotating against Army 4,
The height of the supporting frame for slab construction can be adjusted. The receiver 16 is fixed to the joist 15 by a fixing screw 8 provided on its side wall.

A flange 19 with a hole is provided protruding from the lower inside of the connecting fitting 9, and the flange 9 and the connecting fitting 28 shown in FIG. The supporting framework for construction is being reinforced.

The brace 7 is a chest brace that connects the top and bottom of the other inclined support 5 to each other. Both ends are connected by pins, and a turnbuckle 22 for length adjustment is provided in the middle. The connecting fitting Maizuru has a flange 23 with a hole for connecting the lower end of the brace with a pin, and further has a cylindrical part 2 that is inclined in the same direction as the oblique support column 6, and has a mirror oblique support column. The pins 2 and 2 are connected by engaging the holes in the cylindrical portion 2&.

The cylindrical portion 24 is supported on the support plate 7 through the support plate 27' by a channel member 26 having a plane receiving it at right angles and a newly curved wall perpendicular to the plane, and supported on the upper surface of the slab. Note that this support plate 27 will be located at the corner of the slab.
The supporting frame for slab construction of the present invention is the Fujinari mentioned above, whose upper end supports the part near the center of the upper floor slab, and whose lower end is located at the corner of the lower floor slab. However, the construction load on the upper floor is not directly transmitted to the lower floor slab via the supporting framework for slab construction.

Therefore, when constructing a multi-story reinforced concrete structure, there is no need for large construction loads or moments to act on the slabs on the lower floor, and there is no need to construct extra reinforcing means such as small beams as in conventional methods, making the work easier. It is excellent in terms of economy.Also, the height of the supporting framework for slab construction is adjustable, making it easy to install and not causing any lack of strength due to dimensional errors. .

[Brief explanation of the drawing]

Figure 2 is a schematic diagram of a multi-story structure using a conventional support device for slab construction, and Figure 2 is a schematic diagram of a multi-story structure using the support framework for slab construction of the present invention. Figure 3 is a front view of the supporting frame of the invention, Figure 4, Figure 5, and Figure 6 are enlarged views of the threaded rod of the supporting frame, the upper connecting bracket, and the lower connecting bracket of Figure 3, respectively. Yes. 4a, umbrella b, 4c...slab 5...slanted support 6...horizontal member 7...brace, crab...height adjustment member.

Claims (1)

[Claims] 1. In a support device for slab construction in a multi-story reinforced concrete structure, a pair of inclined columns whose lower ends are located at the corners of the lower floor slab and arranged in a figure eight shape are connected to the upper ends of the pair of inclined columns. A pair of braces connecting the upper end of one inclined column and the lower end of the other inclined column, and a joist provided at the upper end of each inclined column and on the underside of the upper floor slab. A support framework for slab construction consisting of a supporting height adjustment member.