JPH0579778B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <<Industrial Application Field>> The present invention relates to a waterproofing method for preventing damage to lower floors due to water leakage in a water section in a multi-story housing complex such as a condominium.

《Prior Art》 Normally, parts of apartment buildings that use a lot of water, such as kitchens, washrooms, bathrooms, and toilets, are integrated into a water section.

In this water section, water supply pipes, drainage pipes, gas pipes, etc. are laid out on a reinforced concrete floor surface separated from a common pipe space, and flooring material is provided above.

<<Problems to be Solved by the Invention>> Water leaks can often occur in these water sections due to careless handling.

For example, there have been cases where water was supplied to a washing machine with the drain hose disconnected, resulting in water spilling from the drain hose onto the floor, or the drain becoming clogged and overflowing.

When such water leaks occur, because conventional cast-in-place concrete floors are not sufficiently waterproof, water leaks to the floor below through cracks, stains the ceilings and walls of the units below, and water leaks from there. Then a problem occurred.

Furthermore, in buildings with a precast structure, although the precast plates are waterproof, there is a good chance that water will leak from the joints at their peripheral edges.

In response to this, some methods have been used to waterproof the entire floor surface of the water section with asphalt, but this type of waterproofing is generally not carried out due to the cost and complexity of construction. It was the current situation.

This invention was made based on the above background, and it is possible to make a water section a completely waterproof floor surface using a simple construction method, and to streamline the installation and construction of piping and equipment such as water supply and drainage pipes. The purpose is to

<<Means for Solving the Problems>> In order to achieve the above object, the present invention provides a floor surface shape corresponding to the water section of a multi-story apartment complex, which is formed into a bread shape with a rise on the periphery. On the precast floor slab, we perform preliminary piping according to the layout of the equipment units,
It is characterized in that the piped precast floor slab is lifted up and fitted and fixed to the beams and slabs around the water section.

<<Example>> Hereinafter, an example of the method of this invention will be described in detail using the drawings.

FIG. 1 shows a precast floor slab 1 to which the present invention is applied.

The floor slab 1 is formed into a rectangle corresponding to the shape of the floor surface of the water section, and has raised portions 3 provided around the four peripheries of the floor surface, and is formed into a bread shape as a whole. Further, a notch 4 for drainage is formed in a part of the upright portion 3, and the floor surface 2 of the floor slab 1 is formed into an inclined surface that slopes downward toward this notch 4.

Furthermore, cutouts 5 for attaching a cotter are formed at predetermined intervals at appropriate positions on the upright portion 3.

The precast floor slab 1 formed as described above has supply, drainage and gas pipes 7 as shown in FIG.
Piping is arranged on the floor according to the arrangement of the equipment units, and the ends are concentrated at the lead-in part of the common piping.

Although not shown, each pipe 7 is fixed with a fitting or the like, and the drain pipe in particular has a predetermined slope that slopes downward toward the outlet side.

After completing the above preliminary piping, the flooring F was installed at appropriate positions on the floor via joists, etc., and the package of equipment unit 8 such as the bathroom unit, kitchen set, washbasin unit, and toilet bowl was installed as shown in Figure 3. In this state, it is transported to the construction site, and lifted by a crane or the like via a lifting jig 9.
The installation work is completed by sequentially fitting and fixing the floor slabs 1 from the lower floor.

Figure 4 shows the installation state.
It is in a state where it is engaged with a stepped portion 10a formed on the edge of. Additionally, the flooring F can be removed for inspection.

FIG. 5 shows the details of the installation part of the precast deck slab 1. The beam 10 is also formed with a hole 10b for inserting the caster at a position corresponding to the notch 5 for inserting the caster, and a hole 10b for inserting the caster is formed between the two. By fitting the cotter plate 11 of a predetermined thickness so as to straddle the turrets, and covering the upper part with concrete or mortar, the cotter plate 11
Due to the wedge effect, the joint between the precast floor slab 1 and the beam 10 is joined together in a reinforced state.

Other joints will also be joined using concrete, mortar, asphalt, etc. Then, by joining the ends of the pipes 7 to a lead-in piping section (not shown) from the opposing common piping via a joint, each pipe 7 is completely connected to the common piping section.

Thereafter, the equipment unit 8 is unpacked, its water supply and drainage section is connected to each pipe 7, and installed at a predetermined location, thereby completing the construction of the water section section for each floor.

Note that the drainage notch 4 connects to a common drainage ditch, etc., and if this joint is sufficiently waterproofed, even if water leaks onto the floor 2, the water will not leak downstairs. There is no risk of it seeping or dripping. However, in order to further increase safety, a water leak sensor etc. is placed in this area.
By generating an alarm output in the event of a water leak, the water leak condition can be detected early and safety can be further increased.

Further, in the above embodiment, the equipment unit 8 was simply installed on the precast floor slab 1 via the flooring F, but it is pre-assembled on the floor slab 1 in a state where it is connected to each of the pipes 7 in advance. You can also place them on each floor after attaching them.

《Effects of the Invention》 As explained in detail in the examples above, according to the waterproofing construction method for multi-story housing complexes of the present invention, compared to the conventional method, water leakage does not affect the downstairs, and moreover, the construction period is long and expensive. Since waterproofing can be easily performed without asphalt waterproofing construction, construction is easy and the construction period can be extremely short.

In addition, since this invention allows preliminary piping to be carried out above ground, it is easy to inspect for water leaks that occur at pipe joints, etc., and prevents variations in construction work and water leaks that occur due to this. It can be prevented. Furthermore, if the equipment unit is installed and fixed in advance on the floor slab together with the piping, the construction period will be further shortened.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the overall configuration of a precast deck 1 to which the present invention is applied, FIG. 2 is a perspective view showing a state in which preliminary piping is installed on the precast deck 1, and FIG. 3 is a perspective view of the same precast deck 1. Fig. 4 is a side view showing the state when the precast floor slab 1 is lifted; Fig. 4 is a sectional view showing the state in which the precast floor slab 1 is fixed for each floor;
FIG. 5 is a sectional view showing the state of connection between the precast deck slab 1 and the beam. 1... Precast floor slab, 2... Floor surface, 3...
Standing part, 7...pipe, 9...lifting jig,
10...beam.

Claims (1)

[Claims] 1. On a precast floor slab formed into a bread shape with a rising edge on the periphery, the floor surface shape corresponds to the water section of a multi-story apartment building.
A multi-story housing complex, characterized in that preliminary piping is performed in advance according to the arrangement of equipment units, and the precast floor slab with the piping completed is lifted and fitted and fixed to beams and slabs around the water section. Waterproofing construction method.