JPS61151367A - Beam and floor mold frame 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 [Field of Industrial Application] The present invention relates to a formwork apparatus for constructing beams and floors simultaneously.

[Conventional technology]

Conventionally, as this type of device, for example,
The one published in Publication No. 9551 is known.

This formwork equipment installs a metal beam formwork on a support that can be raised and lowered, places supporting supports on the sides of the beam formwork, and straddles between the opposing support supports and the beam formwork. This involves constructing a semi-finished PC floorboard that also serves as the floor formwork.

[Problems that GA tries to solve]

According to the above formwork apparatus, there is a problem that the metal beam formwork opens due to the weight of the semi-finished PC floorboard and the lateral pressure of the concrete. In order to deal with this, it may be possible to install a separator on the top of the beam formwork, but this poses problems such as the difficulty of accommodating the beam reinforcing bars.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention arranges beam bottom weir plates and scaffolding plates supported by shoring between column forms,
A semi-finished PC floor board is spanned between the opposing beam bottom weir boards via a beam side weir board with a triangular placket hanging from the bottom surface of the end of the semi-finished PC floor board. The weight of the concrete of the slab to be poured is carried by the brackets attached to the ends of the slab, and the lateral pressure of the concrete is transferred to the semi-finished PC floorboards and joists through the beam side weir plates and brackets. Uke is held by.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

The figure is a sectional view of the beam/floor formwork device.

In the figure, a plurality of pipe supports 2 constituting a part of the shoring 1 are erected on the floor between column forms (not shown), and form ties 3 are placed on these pipe supports 2.
A large pull-in pipe 4 and a joist pipe 5 are attached to each other. On the joist pipe 5, a beam bottom weir plate 6 made of plywood is fixed by the form ties 3, and scaffolding boards 8, which serve as a work floor when assembling the beam reinforcing bars 7, are on both sides of the beam bottom weir plate 6. They are placed at an appropriate distance from each other.

The joist pipe 5 is reinforced by braces 9, and handrails 11 supported by handrails 10 are provided at both ends of the joist pipe 50, respectively.

A semi-finished PC floor board 12 that will become the floor formwork is placed between the opposing beam bottom weir boards 6 (only one weir board is shown in the figure).
is suspended from the lower surface of the end by a triangular bracket 13 via a beam side baffle plate 14 made of plywood. The beam side weir plate 14 constitutes a beam formwork together with the beam bottom weir plate 6, and the bracket 1
Horizontal movement is regulated by abutting a handrail hardware clamp 16 tightly tied to the joist pipe 5 to a crosspiece 15 fixed to the lower end of the joist pipe 5.

The bracket 13 is made of angle iron, for example, and is removably attached to the PC floorboard 12 using bolts 17 or the like that are screwed into inserts (not shown) buried under the ends of the semi-finished PC floorboard 12. has been done. Furthermore, the beam side weir plate 14 is removably attached to the bracket 13 using a vertical end (not shown), a horizontal end pipe 18, a form tie 19, and the like. Further, in the figure, what is indicated by a two-dot chain line is a floor surface 2o formed by pouring concrete.

Next, K assembles the beam e-floor formwork device having the above-mentioned configuration. First, the shoring 1 with beam bottom shedding plates 6, scaffolding boards 8, etc. installed in advance on the ground etc. between the column formworks (not shown) is craned. etc. to arrange it. Next, a worker stands on the scaffold board 8 and assembles the beam reinforcing bars 7 on the beam bottom weir plate 6.

After the beam reinforcing bars 7 have been assembled, the semi-finished PC floorboard 12 with the beam side weir plates 14 attached in advance on the ground or the like is hung between the opposing sides of the beam bottom weir plates 6 using a crane or the like. Hand it over. Then, the side surface of the handrail hardware clamp 16 is brought into contact with the side surface of the crosspiece 15 fixed to the lower end of the bracket 13, and the trap and clamp 16 is tightly tied to the joist pipe 5, thereby completing the beam formwork assembly. do.

Note that the clamp 16 may be tightened in advance at a predetermined position on the joist pipe 50.

〔Effect of the invention〕

As described above, according to the present invention, the following various effects can be obtained compared to the conventional technology.

(1) Since the weight of the semi-finished PC floor board and the lateral pressure of the concrete are supported by the joists via the brackets and PC floor board or four ramps, separators are not installed (even if the upper and lower parts of the beam formwork never opens.

(2) Since a work floor is formed on the side of the weir plate for the beam bottom, there is no need to drop the beam reinforcing bars as in the past, and the beam reinforcing bars can be assembled with high precision and capacity.

(3) By removing the bolts and clamps, the beam side weir plate can be removed from the mold while leaving the beam bottom sheath plate in place, and the beam side formwork materials (sheath plate, brackets, end pieces) can be removed from the mold. , it can be repurposed for use on the upper floors in an assembled state.

(4) The panel zone part of the column formwork is formed as part of the beam side formwork, so the column formwork eliminates notches in the beam shape near the beam side, making it easier to process and build. The frame of the panel zone part can be constructed easily and accurately.

[Brief explanation of drawings]

The figure is a sectional view of a beam/floor formwork device showing one embodiment of the present invention.

Claims (1)

[Claims] A beam bottom shedding board and a scaffolding board supported by shoring are placed between the column forms, and a semi-finished PC floor board is suspended between the opposing beam bottom shedding boards using triangular brackets on the lower surface of the end. A beam/floor formwork device that spans through the installed beam side weir plates.