JPS6242097B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for installing roof drains on balconies and the like on each floor of a multi-story building.

When installing a roof drain, it is more convenient to install it first (drive the roof drain at the same time as the slab for the roof, balcony, etc.) in terms of water leakage prevention and construction. However, when installing roof drains in advance, it is difficult to locate them, making on-site work difficult. Particularly when installing roof drains on balconies on each floor of high-rise housing, etc., it is difficult to install them in advance because there are many drains and if the street between the upper and lower floors is not perpendicular, problems may occur when installing the vertical gutter. In reality, there is a tendency to remove the sleeve from the slab where the roof drain is installed and attach the drain afterwards. However, the retrofitting method requires two steps: removing the sleeve when pouring the slab, and then pouring concrete into the area where the sleeve was removed.
Therefore, there is a drawback that the work becomes troublesome.

This invention was made in view of the above circumstances,
By locating the roof drain on the upper floor using a temporary pipe based on the roof drain on the lower floor, roof drains can be installed in advance with precision and in a convenient manner, and roof drain installation construction that takes full advantage of the advantages of advance installation. The purpose is to provide law.

An embodiment of the present invention will be described below with reference to the accompanying drawings.

In the figure, 1a is a balcony slab on a floor of a high-rise residential building, and this slab 1a is connected to the roof drain 2.
It has already been completed with the addition of a. A cylindrical strainer 3a is installed at the top of this roof drain 2a.
is installed. Note that 4a is a socket made of vinyl chloride (vinyl chloride resin), and was used for locating the roof drain 2a on this floor. Moreover, 5a is a slab formwork.

Now, when constructing the slab 1b (indicated by the two-dot chain line) on the floor immediately above this floor, we will also install the roof drain 2b in advance at the same time.In doing so, we will first place the roof drain 2b on the top of the already constructed roof drain 2a on the lower floor.
The temporary pipe 6 is vertically erected while being supported by a strainer 3a. The temporary pipe 6 is assembled by connecting a short pipe 6a, a joint 6b, and a long pipe 6c made of PVC.

On the other hand, the roof drain 2 that should be installed on the upper floor
Attach a PVC pipe socket 4b to the lower end of b,
When setting the slab formwork 5b on this floor, this pipe socket 4b is fitted into the hole formed in the slab formwork, and this pipe socket 4b is attached to the upper end of the temporary pipe 6 raised from the roof drain 2a on the lower floor. Connect and locate the roof drain 2b on the upper floor. At this time, since the temporary pipe 6 is vertically raised, it can be positioned accurately. and,
After that, the formwork 7 around the drain is set and slab concrete is poured. After the concrete hardens, the formwork 7 around the drain is removed, the strainer 3b is attached to the upper part of the roof drain 2b, and the temporary pipe 6 is removed.

In this way, the roof drain 2b on the upper floor is located based on the roof drain 2a on the lower floor, and the slabs on the upper floor are sequentially constructed while attaching the roof drain in advance. Therefore, the upper and lower passages of the roof drains on each floor are precisely vertical, and no inconvenience occurs when installing the vertical gutter.

Note that if the heights of each floor are different, the lengths of the temporary pipes 6 may be different. Further, since the temporary pipes 6 are reused one after another, there is almost no special cost.

As explained above, according to the present invention, a temporary pipe is erected vertically above the already constructed roof drain on the lower floor, and this temporary pipe is used to position the roof drain on the upper floor with reference to the roof drain on the lower floor. This allows the roof drain to be installed in advance with high precision and in a simple manner. Therefore, the advantage of pre-installation can be fully utilized in that the work does not have to be done twice.

[Brief explanation of the drawing]

The accompanying drawing is a side sectional view for explaining one embodiment of the present invention. 1a, 1b...Slab, 2a, 2b...Roof drain, 4a, 4b...Pipe socket, 5a, 5b
...Slab formwork, 6...Temporary pipe.

Claims (1)

[Claims] 1. When installing roof drains vertically on balconies, etc. on each floor of a multi-story building, temporary pipes are erected vertically above the roof drains on the lower floors that have already been constructed, and on the other hand, the roof drains are placed vertically on top of the roof drains on the floors above. Attach a pipe socket to the lower end of the roof drain that will be installed at the same time as the roof drain, and when setting the slab formwork for this floor, fit the pipe socket into the hole formed in this slab formwork, and attach this pipe socket to the lower end of the roof drain. A roof drain installation method characterized by connecting to a temporary pipe raised from the roof drain, locating the roof drain on the upper floor, and then pouring slab concrete for that floor.