JPS59122664A - Construction of piping space in building - 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 [Technical Field of the Invention] The present invention relates to a method for constructing an indoor piping space in a nuclear power plant or the like.

[Technical background of the invention]

First, a conventional piping space construction method will be explained.

FIG. 1 is a schematic cross-sectional view of a building 2 having a piping space l. When the building 2 is completed, almost the entire floor 3 of the piping space 1 is blocked out. Furthermore, an embedded fitting 5 is provided on the ceiling surface 4 within the piping space I.

Therefore, first, a work scaffold 7 is erected on the floor 6 of the building 2.

Next, after the piping support 8 is welded to the embedded fitting 5, the piping 9 is carried in and installed in the piping port 8.

Thereafter, the scaffolding 7 is removed and the blocked piping space floor 3 is restored in the following steps. That is, as shown in Figure 2, scaffolding 10 was erected on the floor 6 of building 2 to restore the piping space floor, formwork was erected, reinforcement was placed, concrete II was poured, and a curing period was allowed. Later, scaffolding zo will be removed.

[Problems with background technology]

However, such a conventional piping space construction method has the drawback that the construction period is long because it involves a series of works from piping support work in the piping space 1 to restoration work on the piping space floor 3.

In addition, the scaffolding had to be erected and removed twice, once during the piping work and once during the floor restoration work, which had the disadvantage of prolonging the construction period and increasing costs. Moreover, the scaffolding for floor restoration work cannot be removed until the concrete floor has finished its curing period, which poses a problem in that it interferes with the transport and installation of equipment, as well as the installation work of equipment and piping at the lower position of piping space I. was also occurring.

[Purpose of the invention]

The present invention was made based on these circumstances, and
The purpose is to provide a method for constructing a pipe space in a building that can shorten the construction period and reduce costs. The pipe installation is carried out using the pipe space floor member as a foothold using the converted piping unit.

[Embodiments of the invention]

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

In Figure 3, numeral 12 is located? P' unit.

This piping unit 12 is formed by integrating a piping support 13 and a piping space floor member I4 made of iron plate by welding. The floor surface of the piping spade I is completely blocked out, and an embedded fitting 16 is embedded in advance in the lower end of a hanging wall I5 for partitioning the piping space I.

Further, a groove-shaped steel I7 is pre-buried in the inner wall surface of the building 2 by providing a recess at approximately the same height as the embedded fitting 16.

Therefore, first, the piping unit 12 is marked in the piping space I with the chain block 18, and one end of the piping space floor member 14 is introduced into the groove steel 17 and supported by the wall surface of the building 2. The other part of the floor member 1 is supported from below by a jack 19 installed on the floor 6 of the building 2 [7] and brought into contact with the lower end of the hanging wall I5.

In this way, the piping unit 12 is suspended in the air, and its level is adjusted using the chain lock 18 and the jack 19. 20 is inserted.

In this way, level A1. l When the JF is completed 1-, the piping support 13 of the piping unit 12 is welded to the embedded metal fitting 5 embedded in the ceiling surface 4 of the piping space 1, and the scaffolding 21 is erected on the floor surface 6 of the building 2. Then, both ends of the floor member 14 are welded to the groove t' (fllI2) and the embedded fitting 16, respectively.

After that, the piping 9 is installed to the piping boat I using the floor member I4 as a scaffold, and the upper surface of the floor member 14 is covered with mortar or concrete U-) for radiation shielding.
21 to complete the construction of the piping space.

According to the above method, by using the piping unit Z2, the piping support 13 and the piping space floor are constructed at the same time, and the subsequent piping work to the piping support 13 is performed using the floor member 14 as a scaffold. Therefore, there is no need to assemble and remove the scaffolding twice, once during piping work and once when restoring the floor of the piping space. In addition, the construction period will be significantly shortened and costs will be reduced. Further, even if mortar or concrete IJ-) 21 is placed on the upper surface of the floor member I4, there is no need to leave the scaffolding t7, and the scaffolding can be removed when the installation of the piping unit Z2 is completed t7. Therefore, there is no problem in carrying in equipment etc. through the lower position of the piping space I, and after the piping unit 12 is installed, work inside and outside the piping space 12 can be performed in parallel.

〔Effect of the invention〕

As detailed above, according to the present invention, a method for constructing piping space inside a building that can shorten the construction period and reduce costs can be provided.
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[Brief explanation of drawings]

1 and 2 are schematic longitudinal sectional views showing the procedure of a conventional construction method, and FIG. 3 is a schematic longitudinal sectional view showing the construction method of the present invention. 1... Piping space, 2... #ya, 9... Piping,
12... Piping unit, 13... Piping support, 1
4... Piping space floor 1110'tts 1.1,
, Patent Attorney Patent Attorney Takehiko Suzue Figure 1 Figure 2 Figure 3 Director General of the Patent Office Kazuo Wakasugi 1. Indication of the case Patent application No. 57-234'013 2, Name of the invention Construction method for building piping 3, Person making the amendment Relationship to the case Patent applicant (307) Tokyo Shibaura Electric Co., Ltd. 4, Agent Address: 17th Mori Building, Taku-No. 5, Toranomon 1-chome, Minato-ku, Tokyo Address: 105 Telephone: 03 (502) 3181 (main representative) 6, Subject of amendment: 302-

Claims (2)

[Claims] (1) Fixing a piping unit that integrates a piping support and a piping space floor member inside a piping space in a building whose floor has been blocked out for piping work,
A method for constructing a distribution space in a building, characterized in that piping is installed on a piping support using a piping space floor member as a scaffold. (2) The 41 indoor piping space construction method according to claim 1, wherein the piping unit is welded to an embedded metal fitting embedded in the ceiling surface of the piping space.