JPH0130976B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a waste form panel construction method suitable for constructing a basement or semi-basement, and more particularly to a waste form panel construction method that improves the workability of waterproofing during construction.

BACKGROUND OF THE INVENTION With the significant rise in land prices in recent years, there has been an increasing need for buildings with rooms that are underground or semi-underground in order to make effective use of land.

Generally, at building construction sites, on-site work is easily affected by natural conditions such as weather, so it is extremely important to reduce the on-site man-hours as much as possible, shorten the construction period, and improve work efficiency.

However, in the conventional method of constructing reinforced concrete side walls, the roots of the site are cut, crushed stones are laid down, concrete is poured, and then the wall reinforcement is assembled using the standing reinforcements. , place formwork panels on both sides, tie them with separators to determine the wall thickness, joint the separators with form ties, assemble the vertical pipes and horizontal pipes in a crossbeam and fix them with form ties, and then connect the formwork panels between the formwork panels. Because the concrete is placed in the concrete, it takes a lot of man-hours and time to prepare for the concrete pouring, and it also takes a lot of time to dismantle the formwork and clean up after the concrete is poured. The disadvantage is that it is difficult to reduce costs.

Another disadvantage is that the quality of the reinforced concrete is likely to be affected due to uneven spacing between the wall reinforcement and the formwork panels.

In particular, if the wall is the side wall of a basement or semi-basement, it is necessary to apply sufficient external waterproofing treatment, but in conventional construction methods, after dismantling the formwork, a mortar base is applied to the concrete side wall, and this is applied. After curing, waterproofing must be applied, which increases the number of man-hours required and the construction period, resulting in a further increase in costs.

The present invention has been made in view of the above circumstances, and provides a waste form panel construction method that improves on-site workability, shortens the construction period, and allows construction of concrete walls with excellent waterproof performance at low cost. There is a particular thing.

That is, in the waste form panel construction method of the present invention, a floor waterproof sheet is laid down, the vicinity of its edge is made to stand up along the inner surface of the floor form, and the sheet is attached to a wall reinforcement panel through connecting materials. It consists of an outer waste formwork panel and an inner waste formwork panel, and the waste formwork panel with a wall waterproof sheet provided on the outside is hung and attached to a temporary material, and the rising parts of the wall waterproof sheet and the floor waterproof sheet are attached. The feature is that the wall is constructed by gluing and pouring concrete inside the waste form panels.

The details of the present invention will be explained below with reference to the drawings showing one embodiment thereof.

In the construction of the present invention, as shown in Figs. 1 to 3, after cutting the roots of the site with the remains and disposing of the remaining soil, crushed stones 2 are laid out on the root cutting bottom 1, and tamped with a rammer. On top of that, pour concrete 3 and mark out the foundation surface.

The floor formwork 4 is arranged along the outer circumferential surface of the side wall position using this marking line, and these are fixed onto the waste concrete 3 with concrete nails. Next, the floor waterproof sheet 5 is laid on the waste concrete 3, and is adhered to the waste concrete, and the edge vicinity 5a of the floor waterproof sheet 5 is raised along the inner surface of the floor form 4, and both 5a, 4 Glue between. It is preferable to place the waste concrete 3 in advance so that even if the floor waterproof sheet 5 is laid, the sheet 5 will not become uneven and water will accumulate. Subsequently, a floor reinforcement panel (not shown), which has been assembled in advance at a factory, is set on the floor waterproof sheet 5, and floor concrete 6 is poured so as to embed it.

After curing the floor concrete 6 for a predetermined period of time, temporary materials 7 are placed at appropriate intervals along the inner side near the periphery, and their bases 7a are secured onto the floor concrete 6 using hole-in anchor bolts (not shown). Fix it. A receiving metal fitting 8 is attached to the upper end surface of the adjacent temporary material 7.
are hung and fixed, and the waste form panel 9 is hung from this.

As shown in FIG.
0a and the horizontal reinforcements 10b are combined into a parallel grid to form a wall reinforcement panel 10, connecting members 11 are welded to this at appropriate intervals, and small panels of waste form are hung from claws formed at both ends of each connecting member to form the outside. A waste form panel 9a and an inner form frame panel 9b are used.A wall waterproof sheet 12 is attached in advance to the outer form frame panel 9a from slightly above the center (a position above the ground) to the bottom end. has been done.

The wall waterproof sheet 12 and the floor waterproof sheet 5 are made of materials such as synthetic rubber and soft vinyl chloride and have waterproof properties.

As shown in FIG. 1, the waste form panel 9 having such a configuration is attached to the temporary material 7 by hooking and fixing the hanging metal fittings 13 screwed to the uppermost connecting member 11 onto the receiving metal fittings 8. Hanged.

In this state, if necessary, join the floor rising reinforcements protruding from the floor concrete 6 and the vertical reinforcements 10a of the wall reinforcement, and join the rising portions 5 of the floor waterproof sheet.
After adhering between the inner surface of a and the outer surface near the lower end of the wall waterproof sheet 12 with double-sided adhesive tape or adhesive, and fixing the lower end of the waste form panel 9 to the floor form 4 or the floor concrete 6, Formwork panels 9a, 9
Concrete is poured between b and the wall concrete 14 is placed.

After curing the wall concrete 14, the hanging fittings 13,
By removing the receiving fittings 8, the temporary material 7, and the floor formwork 4, a reinforced wall concrete whose inner and outer surfaces are reinforced with waste formwork panels 9 and which has been sufficiently waterproofed is obtained.

FIG. 3 shows another embodiment of the present invention, in which a temporary material 7 is installed outside a waste form panel 9. As shown in Figure 3, temporary material 2
0 is formed by a main pillar 21, a support 22, a horizontal plate 23 and a groove 24, the main pillar 21 is placed near the outside of the floor form 4, and the support 22 is planted in the ground outside the root cut. By doing so, substantially the same effect as in the case of FIG. 1 can be obtained. In FIG. 3, the same members as in FIG. 1 are given the same reference numerals.

As mentioned above, in the present invention, the waste formwork panel is hung and attached to the temporary material, so the outer formwork panel and the inner formwork panel do not need to be very strong and can be thin. Therefore, there is no need to support these inner and outer formwork panels from the sides, the amount of excavated soil is small, the construction period is short, workability is good, and costs can be significantly reduced.

[Brief explanation of drawings]

Figure 1 is a vertical cross-sectional view showing an example of application of the construction method of the present invention;
FIG. 2 is an enlarged longitudinal sectional view of a part thereof, and FIG. 3 is a longitudinal sectional view showing a modification of the construction method of the present invention. 4... Floor formwork, 5... Floor waterproof sheet, 6... Floor concrete, 7... Temporary construction material, 8... Receiving metal fittings,
9...Discarded formwork panel, 10...Wall reinforcement panel, 1
1... Connecting material, 12... Wall waterproof sheet, 14...
Wall concrete, 20...Temporary material.

Claims (1)

[Claims] 1. Lay a floor waterproof sheet, raise the area near its edge along the inner surface of the floor form, and connect the wall reinforcement panel, the outer cast-off form panel and the inner cast-off frame attached to this via connecting materials. A waste form frame panel with a wall waterproof sheet on the outside is hung and attached to temporary materials, the rising parts of the wall waterproof sheet and the floor waterproof sheet are glued, and concrete is placed inside the waste form frame panel. A waste formwork panel construction method characterized by constructing walls by pouring concrete.