JP2000130640A - Piping execution method by wire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten construction term of pipe laying work by stretching a wire along a route piping in advance and hanging and supporting a pipe using a shaped support metal on this wire after pulling both ends of the wire by a pulling metal when the pipe is hung from an upper story, etc., in a building and is laid. SOLUTION: When a refrigerant pipeline 10 extending inside a building and extending by passing through a wall face is laid, a wire 30 is first extended along a route of the refrigerant pipeline 10. That is, an anchor 14 is welded on wide-flange shape steel 12 fixed on the wall face of the building, one of hooks of a turn buckle 22 is inserted into a ring 14a of the anchor 14, a terminal of the wire 30 is inserted into the other hook, and then it is folded back and is tightened and fixed of a metallic band 32. Next, the wire 30 is stretched tightly by turning and tightening the turn buckle 22. At this time, an intermediate part of the wire 30 is inserted into a ring 16a of a suspension ring 16. After that, the refrigerant pipeline 10 is hung and supported from the wire 30 using a shaped support metal 40.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for laying pipes, particularly copper pipes and resin pipes, in various buildings. When the pipe is laid horizontally in the air, the pipe needs to be supported at an appropriate interval because the pipe is bent by its own weight and the weight of the internal fluid. Copper pipes and resin pipes have a lower rigidity than steel pipes or stainless steel pipes, so they tend to bend, and the spacing between pipes must be reduced.

[0002]

2. Description of the Related Art When laying pipes, an insert is generally installed on the lower floor of a slab of an upper floor or a roof when building a building, and the upper end of a suspension bolt is screwed into the insert after the concrete is cast. Attach a support bracket or a sleeper to sandwich the piping
A hanging method of hanging pipes at intervals of m is adopted. Piping support intervals are described in detail in the 1997 edition of the Japan Air-Conditioning Sanitary Works Business Association, “Supervision of the Maintenance Department of the Secretariat of the Ministry of Construction, Common Specifications for Machinery and Equipment Works, 1997 Edition”. The support interval of the pipe depends on the diameter of the pipe.
m or 2 m or less.

In the conventional pipe construction method, when the height of the ceiling portion exceeds 1.5 m, the work of screwing a suspension bolt (hook) into an insert on the lower floor of a slab of an upper floor or a roof requires an upward work. The work of installing a large number of suspension bolts continuously at intervals of 1 to 2 m or less is not easy because it is a place work, and there are problems in quality, workability, safety, and the like, and causes an increase in work cost. I was

[0004] In Japanese Patent Application Laid-Open No. Hei 8-166087, "Piping Laying Method and Temporary Piping Support Tool" is a method of moving a temporary pipe supporting tool along a piping path and placing and laying a pipe on the supporting tool. Has been proposed.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to facilitate the work of laying pipes on the upper floor of a building or under a roof slab, improve quality, improve workability and safety, and shorten the construction period. By doing so, the working cost can be reduced.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention relates to a suspension construction method for suspending and laying a pipe from an upper floor of a building or a lower surface of a slab of a roof. Beforehand wire (rope)
Attach both ends of the wire to the building components of the building, pull it with a tension fitting, and suspend the middle part of the wire from the lower floor of the upper floor or the slab of the roof using suspending fittings at intervals so that there is no slack. Provided is a piping construction method characterized by hanging and laying a pipe using a fixed metal fitting for a wire.

[0007]

According to the piping construction method of the present invention, (1) a wire is hung from an insert on the lower floor of a slab of an upper floor or a roof at intervals of, for example, 10 m, and a pipe is hung from this wire. High-place work required every 2 m can be performed every 10 m. Long hanging members are drastically reduced, workability and safety are significantly improved, work period is shortened, and work cost is reduced. (2) When the pipe undergoes thermal shrinkage, the support metal moves on the wire and absorbs the heat shrinkage, preventing problems such as copper pipe slipping out of the coating and sleeper coming off. Hereinafter, the present invention will be described in detail with reference to embodiments of the accompanying drawings.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a plan view of a building (steel-framed one-story office building) in which a piping method according to the present invention is applied to a refrigerant pipe. The length L is 52.8 m and the width W is 28 m. It is. As the refrigerant pipe 10, a coated copper pipe in which a flame-retardant foamed polyethylene or the like is coated around the copper pipe is used, extends inside the building, and extends through the wall surface. Also, refrigerant pipe 1
0 is branched in the middle and is connected to the air conditioning indoor unit 50.

According to the present invention, a wire 30 extends along the route of the refrigerant pipe 10. As shown in FIG. 2A,
An anchor 14 is welded to an H-shaped steel 12 fixed to a wall of a building, one of hooks of a well-known turnbuckle (tension metal fitting) 22 is inserted into a ring 14a of the anchor 14, and a wire is connected to the other hook of the turnbuckle 22. Thirty terminals are inserted and then folded back, and fixed by metal bands 32. Thus, the wire 30 can be tensioned by turning and tightening the turnbuckle 22.

The middle portion of the wire 30 is inserted into the ring 16a of the suspension ring 16, as shown in FIG. 2B. The suspension ring 16 is suspended from a suspension bolt 18 screwed into an insert 20 on the upper floor or the lower surface of the slab, as shown in FIG.
They are arranged at a pitch of about 10 m.

FIG. 3 shows a vertical section of a building in which the piping method according to the present invention has been carried out.
1 is 7.5 m, and the indoor height H2 up to the ceiling is 3.7 m. The suspension bolts 18 and the suspension rings 16 are suspended at intervals of about 10 m necessary to remove the deflection of the wire 30, while the refrigerant pipe 10 is a fixed (commercially available) support fitting (suspension fitting) from the wire 30. It is hung at an interval of 1 m or less using 40. An example of the commercially available support hardware 40 is illustrated in “Air Conditioning Refrigerant Piping Design / Construction Technology Guidebook” published in 1997.

In the example shown in FIG. 3, since the height of the ceiling is large, the work of screwing the suspension bolts 18 into the insert 20 is difficult at a high place. However, according to the method of the present invention, the conventional suspension system is not used. The process is completed in a much smaller number of times, and the number of the long members 18 is drastically reduced. Since the process of suspending the refrigerant pipe 10 from the wire 30 is performed at a low position, the process is safe and efficient. According to the method of the present invention, the number of work steps is greatly reduced as a whole, and the safety is improved. Can be

[0013]

As described above in detail, according to the piping construction method of the present invention, the number of long hanging members is drastically reduced, and work in high places is greatly reduced, and workability and safety are significantly improved. In addition, the construction period is shortened and the operation cost is reduced. In addition, when the pipe undergoes thermal shrinkage, the wire absorbs the heat shrinkage, which can prevent problems such as the copper pipe slipping out of the coating and the sleeper coming off, and the technical effects are extremely high. Some are remarkable.

[Brief description of the drawings]

FIG. 1 is a plan view of the inside of a building in which a piping method according to the present invention has been implemented.

FIG. 2 is a side sectional view illustrating a method of supporting a wire between a terminal and an intermediate part.

FIG. 3 is a vertical sectional view of the inside of a building in which the pipe construction method of the present invention has been implemented.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Piping 12 H-shaped steel 14 Anchor 16 Hanging ring 18 Hanging bolt 20 Insert 22 Turnbuckle 30 Wire 40 Supporting hardware 50 Air conditioning indoor unit

Claims (1)

[Claims] 1. A method for suspending and laying a pipe from an upper floor in a building or a lower surface of a slab of a roof, wherein a wire is previously stretched along a pipe route, and both ends of the wire are connected to building members of the building. While pulling with the mounting tension bracket, suspend the middle part of the wire from the lower floor of the upper floor or roof using hanging brackets at intervals so that there is no slack, and suspend the pipe using a fixed support metal for this wire A plumbing method characterized by laying.