JP6125289B2 - Vertical pipe construction method and temporary jig device for vertical pipe construction - Google Patents

Description

  The present invention relates to a method for installing a standing pipe provided in a pipe shaft of a building and a temporary jig device for the standing pipe construction.

  In buildings such as office buildings, commercial facilities, and apartment buildings with multiple floors, for example, water supply pipes with water tanks in the basement and basement floors, heat sources such as refrigerators installed in the basement floors, and installed on each floor Cooling water or hot water piping that transports chilled water or hot water circulated as a heat medium with the air conditioner, and cooling water that exchanges heat with water to the cooling tower that exchanges the exhaust heat of the refrigerator with the atmosphere installed outdoors. It is common to install vertical pipes that extend water and steam pipes in the vertical direction, such as cooling water pipes to be transported, in pipe shafts that are partitioned by walls so that they cannot be seen by residents for design reasons. . Since this pipe shaft reduces the area that can be used in the living room, the internal piping is usually arranged side by side with an interval necessary for construction so that the flat area is as small as possible. Even if fire floors are installed in the pipe shaft for each floor by the fire prevention section of each building, and the floor penetration is fireproofed, the wall is considered as a partition and the pipe shaft is not divided into floors. There are also cases of pit pits with through fireproofing on the walls of each floor. In both cases, there is no need for a person to enter the pipe shaft except during construction, so there are many cases where an inspection port, which is a small opening, serves as an entrance. Further, in the case of a shaft as an integral section, the level of entry and exit of people is limited, and there are measures to prevent falling, and workability within the pipe shaft is significantly limited.

  Conventionally, when installing a vertical pipe in a pipe shaft that communicates with the upper and lower floors of a building such as a building, the pipe material constituting the vertical pipe is carried into each floor, or the pipe material is suspended from the upper floor and carried into the lower floor. Or, a method of pushing up the pipe material from the lower floor and carrying it into the upper floor is known (see, for example, Patent Document 1), and a suitable method is adopted depending on the situation of the building or the like.

Japanese Patent No. 3575881

  By the way, when the pipe material constituting the vertical pipe is suspended from the rooftop or the top floor of the building to the lower floor using a suspension means equipped with a winch or the like, the rope of the means for hanging the pipe material is suspended. In the middle of hanging and hanging with a chain, there is a concern that the pipe material will shake relatively large. In this case, the suspended pipe material is other equipment or the like existing in the pipe shaft (for example, the wall inner surface forming the shaft in the pipe shaft, the floor slab / floor material in the pipe shaft, and the boxed penetrating part frame, Or the temporary scaffolding provided in the pipe shaft for the installation of the vertical pipe, or another vertical pipe, etc.), the pipe material will be brought in there, or damage may be caused by the contact There is a risk of falling. Therefore, in order to avoid such a problem, it is necessary to provide a worker for assisting the operation of the suspended pipe material even in the middle floor where the pipe material suspended by the hanging means only passes. This may occur, leading to a decrease in workability and an increase in cost.

  The present invention has been made to solve the above-described problems and the like, and the purpose thereof is a vertical pipe construction method and a vertical pipe construction capable of smoothly carrying in a pipe material constituting the vertical pipe. It is in providing the temporary jig apparatus for.

  In the following, each means suitable for solving the above-described problems will be described in terms of items. In addition, the effect etc. peculiar to the means to respond | correspond as needed are added.

Means 1. A suspension means capable of suspending the pipe material constituting the standing pipe is installed in the floor or tower of the top floor or higher among the floors where the standing pipe is installed in the pipe shaft of the building, and the rope of the suspension means or The pipe is connected to a locking tool provided at the lower end of the chain, the pipe is suspended to the target installation floor, and a vertical pipe construction method for connecting to a connection destination,
When hanging the pipe,
Attached to one end portion of the tube material, which is detachably attached to one end portion of the tube material having flanges formed at both ends, and is detachably connected to the locking tool of the suspension means. On the occasion, a connecting member provided with a locking part located in the central axis extension of the pipe,
In the pipe shaft, from the suspension means, a guide wire extending in a tension state vertically to the floor below the lowest floor among the floors where the standing pipe is installed in the pipe shaft,
One end is connected to the flange of the tube, the locking tool, or the locking portion, and the other end is slidably locked up and down with respect to the guide wire.
Furthermore, the connecting member is
A closing flange having a mounting hole formed in a central portion thereof, which is detachably connected by a bolt to a peripheral hole formed in the flange so as to close the opening of the pipe, and the closing flange An eyebolt attached to the closing flange corresponding to the mounting hole,
By suspending the pipe member to which the connecting member is attached by the suspension means, the rope or chain of the suspension means and the central axis of the pipe material are on the same virtual straight line extending in the vertical direction. Located in
The assistance means slidably engages between the guide wire and the tube material suspended by the suspension means, and the tube material is suspended along the guide wire to the installation floor. A vertical pipe construction method characterized by lowering.

  According to the means 1, the guide wire vertically stretched through the floor where the standing pipe is installed in the pipe shaft, and the assisting means for slidably locking between the pipe material and the guide wire are provided. By providing, the pipe material suspended by the suspension means can be suspended along the guide wire. For this reason, it is possible to prevent the pipe material from shaking relatively large (relatively deviating from the track) when the pipe material is suspended, and the pipe material to be suspended exists in the pipe shaft. It is possible to avoid a situation in which it comes into contact with other equipment (another vertical pipe, a scaffold for piping, etc.).

  Furthermore, in a state where the pipe material is hung on the hanging means, the rope or chain of the hanging means and the central axis of the pipe material are located on the same virtual straight line extending in the vertical direction. For this reason, it will be in the state where the pipe material is suspended by the suspension means with good balance, and when the pipe material is lowered, it can be suppressed that the pipe material is shaken.

  Therefore, the pipe can be suspended substantially vertically with the posture of the pipe stabilized, and the pipe can be reliably and relatively smoothly carried to the target installation floor. As a result, in the middle floor between the floor where the hanging means is installed and the floor where the pipe material suspended by the hanging means is carried in, the operation of the suspended pipe material is assisted (stopping the shaking of the pipe material). There is no need to deploy workers for sending to the lower floor, and workability can be improved and costs can be reduced.

In addition, pipe materials (pipes and flanges) used in Japan are basically used and distributed in conformity with the Japanese Industrial Standards (JIS). In addition, the closed flange that is standardized from the material of the pipe, etc., and the center opening of the flange is solid so that it conforms to JIS, such as the same thickness as the pipe side, the diameter and number of holes around the pipe, and how to hit the flange surface Produced.

Therefore, as in the case of the present means 1 , a standardized eyebolt as defined in JIS B 1168 for suspending machinery is used with respect to the center portion of the closing flange, that is, the center of gravity position of the closing flange. For attachment, for example, a female screw is screwed or a simple mounting hole larger than the outer diameter of the eyebolt's male screw is formed, and the eyebolt is screwed to the closing flange or fastened with a nut. Prepare members. And by attaching the said connection member to a pipe material, it becomes possible to hang a pipe material by the hanging means on the extension line of the central axis. Therefore, the above-mentioned effect of being able to hang the pipe material in a well-balanced manner by the suspending means is surely exhibited.

  Furthermore, since the connecting member can be configured by forming an attachment hole in the closing flange and attaching the eyebolt, a connecting member that can ensure sufficient strength can be obtained relatively easily. Accordingly, it is possible to improve the workability related to the production of the connecting member and to suppress the cost. In addition, the attachment between the connecting member and the pipe material can be reliably and smoothly performed because the attachment is performed by fastening the peripheral hole of the flange whose position matches with the bolt.

Means 2 . The hanging means is
From the floors of the top floors or towers that are installed on the pipes, or from the floor level of the towers, or from the floors of the floors that are installed on the pipes or from the ceiling beams of the towers A suspended support base;
A trolley rail extending to the lower part of the support base in the direction in which a plurality of vertical pipes arranged in parallel in the pipe shaft;
A trolley suspended from the trolley rail so as to be movable in the extension direction of the trolley rail,
The assistance means slidably engages between the guide wire and the tube material that has been suspended by the suspension means,
The pipe material suspended along the guide wire to the installation floor,
After unlocking the assistance means,
The vertical pipe construction method according to means 1, wherein the pipe is horizontally moved to a predetermined vertical pipe installation position in the suspended state along the vertical pipe arrangement direction in the pipe shaft at the installation floor level.

According to the means 2 , for each vertical pipe to be arranged in parallel in the pipe shaft, if construction is completed for each pipe at a vertical pipe installation position farther than the guide wire installation position, the pipe material in a suspended state And interference with the installed standpipe can be avoided. Therefore, it is possible to safely and efficiently perform the construction in which a large number of standing pipes are installed side by side in the pipe shaft.

Means 3. A suspension means capable of suspending the pipe material constituting the standing pipe is installed in the floor or tower of the top floor or higher among the floors where the standing pipe is installed in the pipe shaft of the building, and the rope of the suspension means or It is a temporary jig device for standing pipe construction that connects the pipe material to a locking tool provided at the lower end of the chain, suspends the pipe material to the target installation floor, and connects to the connection destination.
For hanging the pipe,
And to one end of the tube member having a flange at both ends, mounted coupled detachably by bolts to the surrounding hole which is opened so as to close the opening of the tube member to the flange center a blind flange mounting hole is formed in part, are detachably connected to the locking means of the hanging down means, when attached to one end of the tube material, the attachment of the blind flange a connecting member having a locking portion corresponding to the hole located at the center axis extending in the tube consisting of eye bolt attached to the blind flange,
In the pipe shaft, from the suspension means, a guide wire extending in a tension state vertically to the floor below the lowest floor among the floors where the standing pipe is installed in the pipe shaft,
One end is connected to the flange of the tube, the locking tool, or the locking portion, and the other end includes an assisting means locked to the guide wire so as to be slidable up and down.
By suspending the pipe member to which the connecting member is attached by the suspension means, the rope or chain of the suspension means and the central axis of the pipe material are on the same virtual straight line extending in the vertical direction. Located in
The pipe member suspended by the suspension means and the guide wire are slidably locked by the assistance means, and the pipe material is suspended along the guide wire to the installation floor. This is a temporary jig device for standing pipe construction.

According to the means 3 , the same effects as the means 1 can be obtained.

Means 4. The hanging means is
From the floors of the top floors or towers that are installed on the pipes, or from the floor level of the towers, or from the floors of the floors that are installed on the pipes or from the ceiling beams of the towers A suspended support base;
A trolley rail extending to the lower part of the support base in the direction in which a plurality of vertical pipes arranged in parallel in the pipe shaft;
A trolley suspended from the trolley rail so as to be movable in an extension direction of the trolley rail;
With
After lifting the tube along the guide wire to the installation floor and releasing the assistance means,
Within the pipe floor of the installation floor level, it is possible to move horizontally to a predetermined vertical pipe installation position in the suspended state along the vertical pipe arrangement direction.
The temporary jig apparatus for standing pipe construction of the means 3 characterized by the above-mentioned.
According to the means 4, the same operational effects as the means 2 can be obtained.

It is explanatory drawing for demonstrating the outline of a vertical pipe construction. It is a front view which shows the pipe material etc. which were suspended by the suspension apparatus. It is a disassembled perspective view which shows a connection member. It is explanatory drawing which shows schematic structure of a guide wire.

  Hereinafter, an embodiment will be described with reference to the drawings. As shown in FIG. 1, in this embodiment, in order to install the vertical pipe 3 in the pipe shaft 2 communicating with the upper and lower floors in the existing building 1, the pipe material 4 constituting the vertical pipe 3 is arranged from the upper floor to the lower floor. The method of hanging and carrying in is adopted. The tube material 4 of the present embodiment includes a cylindrical pipe 5 and annular flanges 6 formed at both ends of the pipe 5.

  In the building 1 which is the construction site of the present embodiment, the inside of the pipe shaft 2 is blown away. That is, it is a case where it is a pothole section as a fire prevention section. For this reason, in order to connect the pipe members 4 to each other, a temporary scaffold 8 is provided so as to project into the pipe shaft 2 from the floor slab 7 of each floor (the upper part of the beam type in FIG. 1 is the upper surface of the floor slab 7). Is provided.

  Among the floors where the vertical pipe 3 is installed in the pipe shaft 2, a suspension that can suspend the pipe material 4 constituting the vertical pipe 3 is suspended from the temporary scaffold 8 on the uppermost floor or the temporary scaffold 8 on the first floor. A lowering device 11 is installed. In FIG. 1, if a hanging device 11 is installed on a temporary scaffold 8 at the floor level of the top floor among the floors where the vertical pipe 3 is installed, the top floor is horizontally pulled from just above the floor surface in the horizontal direction. In FIG. 1, if the suspension device 11 is installed on the temporary scaffold 8 on the first floor of the top floor among the floors where the vertical pipe 3 is installed, the top floor is a ceiling. It will be constructed as a horizontal pipe in the horizontal direction in a form suspended from the surface.

  The suspension device 11 includes a substantially gate-shaped support base 12 that is installed so as to straddle an opening 8 a provided for passing the pipe material 4 in the temporary scaffold 8, and an electric hoist 15 that is supported by the support base 12. And. Incidentally, in this embodiment, the electric hoist 15 is supported by the support stand 12 via the trolley 13 and the trolley rail 14 (H-shaped steel). In the present embodiment, a plurality of pipes 4 are connected one after another, and are arranged in parallel by a support metal (not shown) protruding from the inner wall of the pipe shaft 2 to form a plurality of standing pipes 3. In FIG. The direction in which the upright tubes 3 are arranged in parallel is the depth direction of the paper surface, and the trolley rail 14 is installed so as to extend in the depth direction of the paper surface of FIG. Thereby, the electric hoist 15 and by extension, the pipe material 4 hung on the electric hoist 15 can also be slid in the horizontal direction (the depth direction in FIG. 1). In the present embodiment, the hanging device 11 constitutes a hanging means.

  Furthermore, a hook 17 as a locking tool is provided at the lower end of the wire rope 16 of the electric hoist 15. As will be described in detail later, the pipe material 4 is connected to the hook 17, the pipe material 4 is suspended to the target installation floor, and connected to the connection destination (another pipe material 4 constituting the standing pipe 3). ing.

  In addition, as shown in FIGS. 2 and 3, in the present embodiment, a connecting member 21 is attached to one end portion of the tube material 4 in order to suspend the tube material 4 by the hanging device 11. The connecting member 21 closes the opening of the pipe member 4 and is a closed flange that has a central opening that is detachably connected by a bolt 20 to a peripheral hole (bolt hole) 6a formed in the flange 6. 22 and an eyebolt 23 attached to the central portion of the closing flange 22. The closing flange 22 of the connecting member 21 has a disk shape having the same outer diameter as that of the flange 6 of the tube material 4, and a mounting hole 22 a is formed at the center thereof, that is, at the center of gravity of the closing flange 22.

  Then, the threaded portion of the eyebolt 23 is inserted into the mounting hole 22a of the closing flange 22, and the nut 23a (see FIG. 2) is screwed into the threaded portion of the insertion destination. As described above, the closing flange 22 and the eyebolt 23 are fixed, and the connecting member 21 is configured. Further, although it is necessary to prevent rotation, a configuration may be adopted in which a female screw is screwed into the mounting hole 22a of the closing flange 22 and the male screw of the eyebolt 23 is screwed and tightened so as not to loosen.

  In addition, the closing flange 22 is formed with a peripheral hole 22 b that is aligned with the peripheral hole 6 a of the flange 6 and is fixed by the bolt 20. When the connecting member 21 is attached to the tube material 4, the eyebolt 23 is positioned on the extension line of the central axis of the tube material 4. For this reason, by connecting the pipe member 4 to the hook 17 of the electric hoist 15 via the connecting member 21, the pipe member 4 can be suspended without being inclined (in a vertical posture). In the present embodiment, the hook 17 of the electric hoist 15 is not directly locked to the ring portion of the eyebolt 23 but is connected via the shackle 26. In the present embodiment, the eyebolt 23 (particularly the ring portion) corresponds to a locking portion, and the shackle 26 and the hook 17 constitute a locking tool.

  Further, as shown in FIG. 4, in the present embodiment, in the pipe shaft 2, the vertical direction extends from the installation floor of the hanging device 11 to the lowest floor among the floors where the pipe 3 is installed in the pipe shaft 2. A guide wire 31 extending in a tension state is provided. In the present embodiment, the upper end of the guide wire 31 is located at a position that does not interfere with the movement of the trolley 13 with respect to the trolley rail 14 (H-shaped steel) provided on the support base 12 of the hanging device 11. It is connected through. On the other hand, the lower end of the guide wire 31 is an H-section steel 34 constituting the opening peripheral portion of the temporary scaffold 8 on the lowest floor (lower part in FIG. 4) among the floors where the pipe 3 is installed in the pipe shaft 2. (Usually, it is an H-shaped steel with a beam back having a strength for supporting the weight of the vertical pipe 3 to some extent and is directly received from the beam on the building frame side.) The guide wire 31 is connected via a lever block (registered trademark) 37 and the like for tensioning the guide wire 31. Below the H-shaped steel 34, before the guide wire 31 is put in a tensioned state, the single pipe 36 is fastened with a clamp 35 so that the single pipe 36 does not fall. It is advantageous to keep the clamp 35 free from tension by being bent by 36.

  The guide wire 31 is installed at the end of the opening 8a in the depth direction of FIG. 1 at the opening 8a of the temporary scaffold 8, that is, the place where the plurality of standing pipes 3 are arranged side by side. If the trolley 13 is moved and installed so that the vertical pipes 3 are arranged in order, a large number of vertical pipes 3 can be installed safely and efficiently. In addition, even if the guide wire 31 is installed at the center of the opening 8a in the depth direction of the sheet of FIG. 1, the trolley 13 is moved so that the upright tubes 3 are arranged side by side from the both ends of the opening 8a. If installed, many vertical pipes 3 can be installed safely and efficiently.

  Further, as shown in FIGS. 2 and 3, in this embodiment, the pipe 4 is connected to the guide wire 31 by connecting the pipe 4 and the guide wire 31 that are suspended by the suspension device 11. An assisting tool 41 is used as an assisting means for hanging along the installation floor. The support tool 41 includes an auxiliary wire 42 having both ends formed in an annular shape (compressed with compression), and a carabiner 43 that hooks both ends of the auxiliary wire 42 together.

  In the present embodiment, two aids 41 are used to support the upper part and the lower part of the tube material 4 respectively. That is, for the upper part of the tube material 4, the auxiliary wire 42 is inserted through the shackle 26, and then both ends of the auxiliary wire 42 are hooked on the carabiner 43 and the carabiner 43 is hooked on the guide wire 31. Further, in correspondence with the lower portion of the pipe material 4, the auxiliary wire 42 is inserted into the peripheral hole 6 a of the flange 6, and then both ends of the auxiliary wire 42 are hooked on the carabiner 43 and the carabiner 43 is hooked on the guide wire 31. Thus, by connecting between the pipe material 4 and the guide wire 31 by the aid 41, the pipe material 4 is supported by the guide wire 31 so as to be slidable in the vertical direction (downward movement is guided). . In the present embodiment, the connecting member 21, the guide wire 31, and the assistance tool 41 constitute a temporary jig device for standing pipe construction.

  Next, the construction method of the vertical pipe 3 will be described. First, a temporary scaffold 8 is provided for the construction of the vertical pipe 3 on the floor where the construction of the vertical pipe 3 is planned, that is, on the floor where the pipe materials 4 are connected to each other, in the pipe shaft 2 that is in the atrium. . The temporary scaffold 8 does not have to be a fireproof structure such as a slab, but since the worker works on it as described later, the structure is suitable for walking and does not fall, and the installation position of the vertical pipe 3 The opening 8a is installed by reinforcing the edge with a steel material, and the support of the vertical pipe 3 is partially taken from the opening 8a and its periphery. The temporary scaffold 8 may be permanently installed in the pipe shaft 2 even after the piping is installed.

  Subsequently, the hanging device 11 is installed on the top floor among the floors where the vertical pipe 3 is to be constructed. Further, the guide wire 31 is stretched vertically from the support 12 of the hanging device 11 to the lowest floor among the floors where the vertical pipe 3 is to be constructed, through the opening 8a of the temporary scaffold 8 installed on each floor. .

  Thereafter, the pipe material 4 constituting the standing pipe 3 is suspended and carried into the installation floor of the apparatus 11, and the pipe material 4 is suspended and suspended from the apparatus 11. That is, the connecting member 21 is connected to the flange 6 of the pipe member 4 with the bolt 20, and the eye bolt 23 of the connecting member 21 is connected to the hook 17 of the electric hoist 15 through the shackle 26.

  Further, two assisting tools 41 are prepared, and the assisting tool 41 connects between the shackle 26 and the guide wire 31 and between the peripheral hole 6 a of the flange 6 on the lower side of the pipe 4 and the guide wire 31. In the present embodiment, the distance between the tube material 4 and the guide wire 31 does not change before and after the tube material 4 and the guide wire 31 are connected by the aid 41.

  As described above, after the pipe member 4 is hung on the hanging device 11, the wire rope 16 is sent out by the electric hoist 15 and the pipe member 4 is lowered. At this time, the pipe 4 is suspended vertically so that its central axis extends on the same virtual straight line as that of the wire rope 16, and descends in a substantially vertical state while maintaining a substantially posture. Furthermore, even if a situation in which the wire rope 16 is swayed, the tube material 4 supported by the guide wire 31 via the assisting tool 41 is not greatly swayed. Therefore, the tube material 4 is temporarily installed. There is no situation in which the opening 8a of the scaffold 8 comes off or contacts the surroundings.

  And the pipe material 4 is carried in to the target floor, the assistance tool 41 attached to the flange 6 on the lower side of the pipe material 4 is removed from the flange 6, and the lower part of the pipe material 4 and the pipe material 4 already laid are connected. . Thereafter, the connecting member 21 is removed from the pipe material 4. Further, the support tool 41 attached to the shackle 26 is removed from the guide wire 31, and the support tool 41 attached to the lower side of the pipe material 4 is attached to the shackle 26, and the wire rope 16 is wound up.

  Thereafter, this operation is repeated until the pipe material 4 is assembled up to the installation floor of the hanging device 11, and the upper part of the pipe material 4 installed on the installation floor of the hanging device 11 is connected to the corresponding piping. Thereafter, the guide wire 31, the hanging device 11, the temporary scaffolding 8 and the like are removed, and the construction of the standing pipe 3 is completed.

  As described in detail above, in the present embodiment, the guide wire 31 that extends vertically through the floor where the pipe 3 is installed in the pipe shaft 2, and the space between the pipe material 4 and the guide wire 31. By providing the assisting tool 41 that connects the pipes 4, the pipe member 4 suspended on the suspension device 11 can be suspended along the guide wire 31. For this reason, when the pipe material 4 is suspended, it is possible to prevent the pipe material 4 from shaking relatively large (relatively deviating from the trajectory). Other equipment, etc. existing in the inside (for example, another vertical pipe or temporary scaffold 8, the inner surface of the wall forming the shaft in the pipe shaft 2, the floor slab 7 in the pipe shaft 2, the floor material, and the boxed through portion frame Etc.) can be avoided.

  Furthermore, by attaching the connecting member 21 to the pipe member 4, the pipe member 4 can be supported on the extension line of the central axis of the pipe member 4 by the hook 17 of the electric hoist 15. Thereby, in the state in which the pipe material 4 is hung on the hanging device 11, the wire rope 16 of the hanging device 11 and the central axis of the pipe material 4 are positioned on the same virtual straight line extending in the vertical direction. . For this reason, it will be in the state where the pipe material 4 was suspended by the suspension apparatus 11 with sufficient balance, and when the pipe material 4 is lowered | hung, it can suppress that the pipe material 4 shakes itself.

  Therefore, the tube material can be suspended substantially vertically with the posture of the tube material stabilized, and the tube material 4 can be reliably and smoothly carried to the target installation floor. As a result, the operation of the suspended pipe material 4 is assisted on the intermediate floor between the installation floor of the suspension apparatus 11 and the floor into which the pipe material 4 suspended by the suspension apparatus 11 is loaded (pipe material 4 It is not necessary to deploy a worker to stop the shaking and send it to the lower floor), and it is possible to improve workability and reduce costs.

  In addition, pipes 5 and flanges 6 of pipes 4 used in Japan are basically used and distributed in conformity with Japanese Industrial Standards (JIS). The closed flange 22 that is standardized from the pressure, the material of the pipe, and the like, and the center opening of the flange corresponding to the flange 6 is also the same thickness as the pipe side, the diameter and number of the peripheral holes 6a, the flange Manufactured to conform to JIS, such as how to hit the surface. Further, the connecting member 21 is a standard eyebolt as defined in JIS B 1168 for hanging a machine tool with respect to the center portion of the closing flange 22, that is, the center of gravity of the closing flange 22. Since it can comprise by attaching 23, the connection member 21 which can ensure sufficient intensity | strength can be obtained comparatively easily. Therefore, it is possible to improve the workability related to the production of the connecting member 21 and to reduce the cost. In addition, regarding the attachment of the connecting member 21 and the pipe member 4, since the peripheral hole 6 a of the flange 6 and the peripheral hole 22 b of the closing flange 22 that are matched in position are fastened with the bolts 20, reliable and smooth. Can be done.

  In addition, it is not limited to the description content of the said embodiment, For example, you may implement as follows. Of course, other application examples and modification examples not illustrated below are also possible.

  (A) In the above embodiment, the inside of the pipe shaft 2 is blown out. However, the present invention may be applied to a site where the floor slab 7 is also present in the pipe shaft 2. The suspension device 11 of the above embodiment includes a substantially gate-shaped support base 12 installed so as to straddle the opening 8a of the temporary scaffold 8, and the support base 12 has a trolley rail 14, a trolley 13, and The electric hoist 15 is configured to be supported. For example, instead of providing the support 12 and the trolley rail 14, the trolley 13 is attached to the ceiling beam on the installation floor of the hanging device 11, and the trolley 13 is electrically driven. You may comprise so that the hoist 15 may be supported. In addition, the trolley 13 can be omitted.

  In the above embodiment, the hanging device 11 is installed on the uppermost floor or the first floor among the floors where the pipe 3 is installed in the pipe shaft 2. The hanging device 11 may be a tower in cases such as when pipe work is performed up to the top floor of the building.

  (B) In the above-described embodiment, the guide wire 31 is configured to support the upper and lower portions of the pipe material 4 using the two assistance tools 41, but only one of the upper and lower assistance tools 41 is supported. It is good also as providing. However, as in the above embodiment, the tubular material 4 is supported by the guide wire 31 at two locations (as far apart as possible), thereby preventing the tubular material 4 suspended in the hanging device 11 from shaking. Will be played even more.

  (C) In addition, the specific configuration and shape of the members used for the connection between the electric hoist 15 and the connection member 21 and the connection between the pipe member 4 and the connection member 21 and the guide wire 31, the connection position, etc. Is not particularly limited, and another configuration may be adopted as long as it can be connected safely and detachably. For example, in the above embodiment, the eyebolt 23 of the connecting member 21 is not directly hung by the hook 17 of the electric hoist 15 but the shackle 26 is interposed, but the ring portion of the eyebolt 23 is connected to the hook 17 and the assisting tool. The shackle 26 may be omitted if the inner diameter is sufficient to allow the 41 auxiliary wires 42 to pass therethrough. Furthermore, in the above-described embodiment, the auxiliary wire 42 is inserted into the shackle 26 to connect between the tube material 4 and the guide wire 31. For example, the auxiliary wire 42 is inserted into the ring portion of the eyebolt 23. Alternatively, the tube 4 and the guide wire 31 may be connected by inserting the auxiliary wire 42 through the hook 17. For example, you may use the assistance tool in which the carabiner was provided in the both ends of the auxiliary wire.

DESCRIPTION OF SYMBOLS 1 ... Building, 2 ... Pipe shaft, 3 ... Standing pipe, 4 ... Pipe material, 6 ... Flange, 8 ... Temporary scaffolding, 11 ... Suspension apparatus, 12 ... Support stand, 15 ... Electric hoist, 16 ... Wire rope, 17 ... Hook, 20 ... bolt, 21 ... connecting member, 22 ... closing flange, 22a ... mounting hole, 23 ... eye bolt, 31 ... guide wire, 41 ... aid.

Claims (4)

A suspension means capable of suspending the pipe material constituting the standing pipe is installed in the floor or tower of the top floor or higher among the floors where the standing pipe is installed in the pipe shaft of the building, and the rope of the suspension means or The pipe is connected to a locking tool provided at the lower end of the chain, the pipe is suspended to the target installation floor, and a vertical pipe construction method for connecting to a connection destination,
When hanging the pipe,
Attached to one end portion of the tube material, which is detachably attached to one end portion of the tube material having flanges formed at both ends, and is detachably connected to the locking tool of the suspension means. On the occasion, a connecting member provided with a locking part located in the central axis extension of the pipe,
In the pipe shaft, from the suspension means, a guide wire extending in a tension state vertically to the floor below the lowest floor among the floors where the standing pipe is installed in the pipe shaft,
One end is connected to the flange of the tube, the locking tool, or the locking portion, and the other end is slidably locked up and down with respect to the guide wire.
Furthermore, the connecting member is
A closing flange having a mounting hole formed in a central portion thereof, which is detachably connected by a bolt to a peripheral hole formed in the flange so as to close the opening of the pipe, and the closing flange An eyebolt attached to the closing flange corresponding to the mounting hole,
By suspending the pipe member to which the connecting member is attached by the suspension means, the rope or chain of the suspension means and the central axis of the pipe material are on the same virtual straight line extending in the vertical direction. Located in
The assistance means slidably engages between the guide wire and the tube material suspended by the suspension means, and the tube material is suspended along the guide wire to the installation floor. A vertical pipe construction method characterized by lowering. The hanging means is
Is it erected from the floor level of the top floor or the tower floor of the floor where the installation work of the vertical pipe is done,
Or, a support stand suspended from the ceiling beam of the floor above the top floor or the tower in the floor where the installation work of the vertical pipe is performed,
A trolley rail extending to the lower part of the support base in the direction in which a plurality of vertical pipes arranged in parallel in the pipe shaft;
A trolley suspended from the trolley rail so as to be movable in the extension direction of the trolley rail,
The assistance means slidably engages between the guide wire and the tube material that has been suspended by the suspension means,
The pipe material suspended along the guide wire to the installation floor,
After unlocking the assistance means,
2. The vertical pipe construction method according to claim 1, wherein the vertical pipe is horizontally moved to a predetermined vertical pipe installation position in the suspended state along the vertical pipe arrangement direction in the pipe shaft at the installation floor level. . A suspension means capable of suspending the pipe material constituting the standing pipe is installed in the floor or tower of the top floor or higher among the floors where the standing pipe is installed in the pipe shaft of the building, and the rope of the suspension means or It is a temporary jig device for standing pipe construction that connects the pipe material to a locking tool provided at the lower end of the chain, suspends the pipe material to the target installation floor, and connects to the connection destination.
For hanging the pipe,
And to one end of the tube member having a flange at both ends, mounted coupled detachably by bolts to the surrounding hole which is opened so as to close the opening of the tube member to the flange center a blind flange mounting hole is formed in part, are detachably connected to the locking means of the hanging down means, when attached to one end of the tube material, the attachment of the blind flange a connecting member having a locking portion corresponding to the hole located at the center axis extending in the tube consisting of eye bolt attached to the blind flange,
In the pipe shaft, from the suspension means, a guide wire extending in a tension state vertically to the floor below the lowest floor among the floors where the standing pipe is installed in the pipe shaft,
One end is connected to the flange of the tube, the locking tool, or the locking portion, and the other end includes an assisting means locked to the guide wire so as to be slidable up and down.
By suspending the pipe member to which the connecting member is attached by the suspension means, the rope or chain of the suspension means and the central axis of the pipe material are on the same virtual straight line extending in the vertical direction. Located in
The pipe member suspended by the suspension means and the guide wire are slidably locked by the assistance means, and the pipe material is suspended along the guide wire to the installation floor. This is a temporary jig device for standing pipe construction. The hanging means is
From the floors of the top floors or towers that are installed on the pipes, or from the floor level of the towers, or from the floors of the floors that are installed on the pipes or from the ceiling beams of the towers A suspended support base;
A trolley rail extending to the lower part of the support base in the direction in which a plurality of vertical pipes arranged in parallel in the pipe shaft;
A trolley suspended from the trolley rail so as to be movable in an extension direction of the trolley rail;
With
After lifting the tube along the guide wire to the installation floor and releasing the assistance means,
Within the pipe floor of the installation floor level, it is possible to move horizontally to a predetermined vertical pipe installation position in the suspended state along the vertical pipe arrangement direction.
The temporary jig apparatus for standing pipe construction of Claim 3 characterized by the above-mentioned.

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