JP2009264025A - Stand pipe construction method and stand pipe unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for easily installing a stand pipe in a narrow construction space without requiring a large-scale construction machine. <P>SOLUTION: A pipe material 2 is arranged in parallel and the pipe material 2 and the pipe material 2 are connected with a connection plate 3, so as to compose a stand pipe unit 1. The stand pipe unit 1 is temporarily placed on a loading space provided on a bottom floor. A tip end of a wire 21A of a winch 21 arranged at an upper floor is connected with the connection plate 3 of a first stand pipe unit 1, and then the first stand pipe unit 1 is lifted up to a predetermined position and fixed to the building. While the wire 21A passing through the connection plate 3 of the first stand pipe unit 1, the tip end of the wire 21A is connected with a connection plate 3 of a second stand pipe unit 1 and the second stand pipe unit 1 is lifted to the bottom end of the first stand pipe unit 1. Then the pipe material 2 of the first stand pipe unit 1 and the pipe material 2 of the second stand pipe unit 1 are connected. Then, next stand pipe units 1 are connected continuously in the same way as above. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vertical pipe construction method for installing a vertical pipe (saddle pipe) such as an air conditioner or a sanitary equipment in a building, and a vertical pipe unit used in this method.

  As a method of installing a vertical pipe in a building, a method in which pipe materials are vertically connected and lifted is known (for example, see Patent Document 1). In this method, pipes for constructing a standing pipe are accumulated on the first floor of a building, a first pipe that is to be located at the top is lifted from above, and a second pipe is joined to the lower end of the pipe. Lift the tube further. Similarly, the third pipe member is joined to the lower end of the second pipe member, and the pipe members are sequentially connected and vertically lifted.

Moreover, the method of arrange | positioning a several pipe material to a mount frame and lifting up for every one floor is known (for example, refer patent document 2). In this method, the upper floor tube material is temporarily fixed to the upper frame temporary fixing device, and the lower floor tube material is set on the centering jig of the movable frame that moves up and down along the guide rail. Then, the movable base is raised, the pipe material on the lower floor is brought into contact with the pipe material on the upper floor, and the connection work is performed.
Japanese Patent Application Laid-Open No. 07-034666 Japanese Patent Laid-Open No. 10-184016

  By the way, in the method described in the said patent document 1, in order to connect and lift the pipe material of several floors, the lifting machine with a large lifting capacity is needed, and the cost of a lifting machine will be increased. In addition, since multiple pipes are connected and lifted, it is necessary to take separate measures because the pipes run sideways and stable lifting is difficult. It tends to depend on the process.

  On the other hand, the method described in Patent Document 2 requires a movable gantry that moves up and down with the tube set, that is, a gantry with a lifting mechanism. Moreover, not only the space for the lifting machine and the gantry is required, but also a space for raising the pipe safely is required. Furthermore, the pipe materials must be erected one by one and set on the frame, leaving room for improvement.

  Accordingly, an object of the present invention is to provide a standing pipe construction method and a standing pipe unit capable of installing a standing pipe easily even in a narrow construction space and without requiring a large construction machine.

  In order to achieve the above object, the invention according to claim 1 is a vertical pipe construction method for installing a vertical pipe in a building, wherein a plurality of pipe members constituting the vertical pipe are arranged in parallel at a predetermined distance. The connecting member connecting the adjacent pipe members to each other is manufactured so as to face each other so as to sandwich the surface on which the axis of both pipe members is located. The tip of the hoisting machine wire installed on the upper floor is connected to the connecting member of the standpipe unit in the unloading space, and the wire is rolled up to place the standpipe unit in a predetermined position. The wire is lowered to the unloading space through the connecting members of the fixed upper standing tube unit, and the tip of the wire is placed in the unloading space. Connected to the connecting member of the tube unit, hoisted up to the lower end of the upper standing tube unit by winding up the wire, connected the lower end portion of the tube material of the upper standing tube unit and the upper end portion of the tube material of the raised standing tube unit, Thereafter, the next standpipe unit is connected in order in the same manner.

  The invention according to claim 2 is a standpipe unit for a floor below the unloading space when the unloading space is not provided on the lowest floor of the standpipe in the standpipe construction method according to claim 1 Is located on the floor, and after the standing pipe unit for the upper floor is disposed from the unloading space, the standing pipe unit for the floor below the unloading space is disposed.

  The invention according to claim 3 is the vertical pipe construction method according to claim 1 or 2, wherein the vertical pipe unit is passed through the floor of each floor of the building, and the insulation allowance is secured. The size is set so that the gap with the riser unit is small, a sleeve opening having the same shape as the cross-sectional shape of the riser unit is formed, and the riser unit is disposed so as to penetrate the sleeve opening. It is characterized by that.

  The invention according to claim 4 is a vertical pipe unit that constitutes a vertical pipe installed in a building, and is a vertical pipe unit that constitutes a vertical pipe installed in a building, and a plurality of pipe materials are predetermined. A pair of metal connection plates are used as connection members that are arranged in parallel at a distance and connect adjacent pipe materials to each other, and this connection plate sandwiches the surface on which the axis of the two pipe materials is located. Opposed and arranged to pass the wire of the hoist, such a pair of connecting members are arranged at least on the upper end side and the lower end side of the tube material, and at least one of the connecting members Further, a connected portion for connecting the wire of the lifting machine is provided.

  According to a fifth aspect of the present invention, in the vertical pipe unit according to the fourth aspect, the upper end of the pipe member of the upper vertical pipe unit is fitted into the upper end part of the pipe material of the lower vertical pipe unit. The shape of a part and a lower end part is set, It is characterized by the above-mentioned.

  A sixth aspect of the present invention is the vertical pipe construction method according to any one of the first to third aspects, wherein there are many fixed-length pipe materials based on the fixed length of the pipe material and the distance between the floors, and the pipe material. The length of the standpipe unit is set so that the connecting portion between the lower end and the upper end of the pipe is positioned at a predetermined height on each floor.

  According to invention of Claim 1, since it raises for every standpipe unit, a large construction machine, ie, a lifting machine with a big lifting capacity, etc. are not required. In addition, since the suspension point is limited to the pipe material to be lifted, it is possible to construct safely and easily even in a narrow construction space. Moreover, in order to lift the next standing tube unit through the lifting machine wire between the connecting members of the already installed standing tube unit, the wire is guided between the connecting members, and the standing tube unit is stably lifted without shaking, It is possible to easily align the fixed pipe material and the pipe material to be lifted. As a result, it is possible to easily install the standpipe in a short time.

  According to the second aspect of the present invention, after installing the upper floor standing pipe unit from the unloading space, the lower floor standing pipe unit is arranged. Even if there is an obstacle in the planned space, even if the installation space is formed on the lower floor after starting the construction of the vertical pipe (arrangement of the vertical pipe unit), the construction process of the whole vertical pipe will be affected. It is possible to perform the construction without giving any (flexibly according to other construction conditions).

  According to the third aspect of the present invention, it is possible to fill the gap by simply filling the gap between the sleeve opening and the standpipe unit with a heat insulating material or filling a little mortar, etc., thereby reducing the filling process. it can.

  According to invention of Claim 4, since the connection member is arrange | positioned at least by the upper end part side and lower end part side of a pipe material, pipe materials are connected firmly and can prevent the distortion | strain, bending, etc. of a pipe material. . Moreover, by passing the wire of the lifting machine between the upper and lower connecting members, the next standpipe unit can be lifted more stably and the alignment between the pipe and the pipe can be performed more easily.

  According to the fifth aspect of the present invention, the lower end portion of the pipe material of the upper standing pipe unit is fitted into the upper end portion of the pipe material of the lower standing pipe unit, and the upper edge of the pipe material of the lower standing pipe unit is upward. (Exposed). For this reason, this upper end edge can be welded from above, and welding or the like can be performed easily and accurately even in a narrow space as compared with the case where the end faces of the pipe materials are brought into contact with each other.

  According to the invention described in claim 6, since the length of the standing tube unit is set so that the number of fixed-size pipe materials increases, the waste material of the pipe material is reduced, and the material cost, the waste material processing cost, and the like can be reduced. it can. Moreover, since the length of the standing pipe unit is set so that the connecting portion between the lower end portion of the pipe material and the upper end portion of the pipe material is located at a predetermined height on each floor, connection work such as welding is easily and safely performed on each floor. It becomes possible.

  The present invention will be described below based on the illustrated embodiments.

  FIG. 1 is a plan view showing a standpipe unit 1 according to an embodiment of the present invention. The standpipe unit 1 is a unit that constitutes a standpipe installed in a building. In this embodiment, the standpipe unit 1 includes two pipe members 2 and two pairs of connection plates (connection members) 3. Specifically, two pipes 2 having the same shape (here, the return pipe of the cold / hot water for air conditioning) are arranged in parallel (parallel) at a predetermined distance, and are connected by the connection plate 3. That is, as shown in FIG. 2, two metal plate-like connection plates 3 face each other at regular intervals from the center plane C1 so as to sandwich the center plane C1 where the axis C of the two pipe members 2 is located. The contact end with the pipe material 2 is welded, and the two pipe materials 2 are connected by the connection plate 3. Here, the axis C is the center line of each tube material 2 extending in the axial direction (longitudinal direction) of the tube material 2, and the two axis lines C are positioned on one center plane C <b> 1. Specifically, in this embodiment, a pair of connection plates 3 are passed between two pipe members 2 to be connected. The connection plate 3 may be slightly decentered from the center plane C1.

  Further, a distance between the connection plates 3 is set so that a chain block 27 described later can be inserted into the insertion space C2 surrounded by the pipe material 2 and the connection plate 3, and such an insertion space C2 is defined as a vertical pipe unit. Located in the center of 1. Such a pair of connection plates 3 are arranged on the upper end side and the lower end side of the tube material 2, and a connection hole for inserting a bolt 24 </ b> A of a shackle 24 described later is inserted into the connection plate 3 on the upper end side. Two (connected parts) 3a are formed in the horizontal direction.

  The pipe 2 is a straight pipe having a circular cross section, and a connection ring 2A is joined to the upper end of the pipe 2 by welding or the like in advance at the factory. The inner diameter of the connection ring 2A is set to be larger than the outer diameter of the tube material 2, and the lower end portion of the tube material 2 can be mounted (fitted) in the connection ring 2A as will be described later. As described above, in this embodiment, the lower end portion is fitted into the upper end portion of the tube material 2 by the connecting ring 2A. However, the upper end portion of the tube material 2 is subjected to diameter expansion processing to obtain the inner diameter of the upper end portion. May be larger than the outer diameter of the lower end.

  The arrangement interval W of the pipe members 2, that is, the width in the connection direction of the connection plate 3, is set by the arrangement design of the standpipe within a range in which a lifting tool (such as the chain block 27) is received. In addition, the length L of the pipe material 2 is based on the total length of the standpipe, the type of the length of the pipe material 2, the distance between the floors, etc., and the length of the pipe material 2 is large. Is set to be at a predetermined height. That is, the length L of each tubular material 2 is set so that the tubular material 2 as long as possible can be used without being cut, and the tubular material connecting portion is positioned at a predetermined height. Specifically, for example, for the vertical pipe unit 1 that is not the highest level (uppermost floor), a tube material 2 having a length equal to the distance between the floors is selected, and the highest vertical pipe unit 1 is selected. On the other hand, the length L of the pipe material 2 is set so that the pipe material connecting portion is located 1.5 m or less (preferably about 1.2 m) from the floor of each floor. Thus, since the length L of the pipe material 2 is set, the length of each standpipe unit 1 is set according to each arrangement position (corresponding floor, connection order).

  Next, a standing pipe construction method for installing a standing pipe in a building using the standing pipe unit 1 having such a configuration will be described based on the flowchart of FIG. Here, as shown in FIG. 4, the building 10 is a high-rise building with 22 floors above ground and 3 floors below ground.

  First, a sleeve opening 10A through which the riser unit 1 is passed is formed on the floor of each floor (step S1). That is, concrete is struck in a state where a cylindrical sleeve is disposed on a concrete receiving material (such as a panel board), and a sleeve opening 10A is formed on the floor of each floor. At this time, the sleeve opening 10A, that is, the shape of the sleeve is determined so that the space between the sleeve opening 10A and the sleeve opening 10A becomes as small as possible after securing the coating allowance of the heat insulating material in the state where the standpipe unit 1 is penetrated. Form. For example, it is set as the shape (glasses shape) along the outer periphery of the riser unit 1.

  Next, the standpipe unit 1 as described above is manufactured (step S2), and the portion of the manufactured standpipe unit 1 above the first basement floor is temporarily placed in a loading space provided on the first basement floor (lower floor). It is placed (loaded into the lifting position), and the standing pipe units 1 for the second and third basements are temporarily placed on the second and third basements (step S3). Here, the formation of the sleeve opening 10A and the manufacture of the standpipe unit 1 may be performed in parallel, or the sleeve opening 10A may be formed after the manufacture of the standpipe unit 1. In addition, if work such as setting for lifting is performed on the first floor above ground, there is little movement to carry in the standpipe unit 1, but in this embodiment, there are many types of occupations on the first floor above ground. Assuming that the work is congested and it is difficult to secure the unloading space, the unloading space will be provided on the first basement floor. Further, it is not always necessary to temporarily place (temporarily store) the standpipe unit 1 in the unloading space, and it may be carried in from the factory each time it is lifted.

  Subsequently, as shown in FIG. 5, a winch (lifter) 21 and a wire drum 22 are installed (step S4). In this embodiment, the winch 21 is an endless winch of a friction winding type, a winch base 23 is installed so as to straddle the sleeve opening 10A on the 22nd floor, the winch body 21 is attached to the winch base 23, and the floor on the 21st floor The wire drum 22 is installed in

  Next, the uppermost stand unit 1 (hereinafter referred to as “first stand unit 1” as appropriate) is disposed (step S5). First, the tip end of the wire 21 </ b> A of the winch 21 is lowered to the unloading space and connected to the connection plate 3 on the upper end side of the first riser unit 1. Specifically, as shown in FIGS. 6 and 7, the bolt 24 </ b> A is inserted into the connection hole 3 a of the connection plate 3 with the end ring 25 a of the suspension wire 25 locked to the inverted U-shaped shackle 24. Then, it is screwed into the screw hole of the shackle 24. Similarly, the other end of the suspension wire 25 is connected to the opposing connection hole 3a, and the two suspension wires 25 are attached to the connection plate 3 in this way. Next, each suspension wire 25 is hung on the pulley 26, and the lower hook 27 </ b> A of the chain block 27 is locked to the hook 26 </ b> A of the pulley 26. Then, the upper hook 27B of the chain block 27 is locked to the ring 21B attached to the tip of the wire 21A.

  Subsequently, the wire 21A of the winch 21 is wound up, and the first standing tube unit 1 is lifted to a predetermined position. In this embodiment, as shown in FIG. 8, the upper part of the first standpipe unit 1 is lifted from the floor of the 20th floor until it is located at a predetermined height. And the metal rocket 4 is welded to the upper part of the 1st standpipe unit 1, and the 1st standpipe unit 1 is fixed to the floor frame of the 20th floor via this rocket 4. Here, at the time of welding, the sleeve opening 10A on the lower floor is closed with a lid and cured so that the spark does not fall. In addition, since all the load of the standpipe is supported by the rocket 4, welding is not a temporary attachment but a full attachment (full circumference).

  Next, a standpipe unit 1 (hereinafter referred to as “second standpipe unit 1” as appropriate) located below the first standpipe unit 1 is disposed (step S6). First, the shackle 24 is removed from the first vertical pipe unit 1 and the chain block 27 and the suspension wire 25 are passed between the connection plates 3 of the first vertical pipe unit 1, that is, through the insertion space C2 on the upper and lower end side. Then, the wire 21A of the winch 21 is lowered to the unloading space. Here, when the chain block 27 cannot pass through the insertion space C2, only the wire 21A is lowered through the insertion space C2. Next, as in the case of the first vertical tube unit 1, the tip of the wire 21 </ b> A of the winch 21 is connected to the upper end portion side of the second vertical tube unit 1 via the chain block 27, the shackle 24, and the like. Connect to plate 3.

  Subsequently, the wire 21 </ b> A of the winch 21 is wound up (FIG. 9), and the second standing tube unit 1 is lifted to the lower end of the first standing tube unit 1. Then, while adjusting the bend (posture) and level of the second vertical pipe unit 1 with the chain block 27, as shown in FIG. 10, the lower end portion (the lower end portion of the pipe material) of the pipe material 2 of the first vertical pipe unit 1 Is attached to the connection ring 2A (upper end portion of the pipe material) of the second vertical pipe unit 1. In this state, the second riser unit 1 is supported by the temporary support base, and the pipe connection portion (upper edge portion of the connection ring 2A) between the lower end of the pipe and the upper end of the pipe is welded. Here, at the time of welding, the sleeve opening 10A on the lower floor is closed with a lid, and the upper edge of the connection ring 2A to which the lower end portion of the first vertical pipe unit 1 is attached because of the narrow space (wall side, etc.) (Outer circumference) is welded from above. In addition, the welding here is temporary welding in which about half of the entire circumference of the pipe material 2 is welded, and after all the standpipe units 1 have been disposed, the remaining portions are welded and attached.

  Thereafter, in the same manner, until all the standpipe units 1 are completed (“Y” in step S7), the next standpipe units 1 are sequentially arranged (connected) as shown in FIG. Here, in the basement 2 and 3 floors below the unloading space, the standpipe unit 1 temporarily placed on the 2nd basement floor and the 3rd basement floor is similarly lifted and arranged. And after arrange | positioning all the standpipe units 1, all the standpipe units 1 are coat | covered with a heat insulating material (step S8). At this time, a heat insulating material is also wound around the connection plate 3 of each vertical tube unit 1, and the heat insulating material wound at the upper part of the portion that penetrates the sleeve opening 10 </ b> A is dropped into the gap between the sleeve opening 10 </ b> A and the vertical tube unit 1. Secure with. If the sleeve opening 10A is a rectangular hole and the gap between the sleeve opening 10A and the stand unit 1 is large, the gap is filled with mortar or the like. Further, for the 20th floor and the 21st floor, after the winch 21 and the wire drum 22 are removed, the temporarily placed pipe material is raised and joined onto the first vertical pipe unit 1.

  As described above, according to the standpipe unit 1 and the standpipe construction method, since each standpipe unit 1 is lifted, a heavy construction machine having a winch of about 21 is required without requiring a large construction machine. Moreover, since the suspension point is limited between the pipe materials 2 to be lifted, it is possible to construct safely and easily even in a narrow construction space. Moreover, in order to lift the next standing tube unit 1 through the wire 21A in the insertion space C2 of the standing tube unit 1, that is, the central portion of the standing tube unit 1, the wire 21A is brought into the center of the standing tube unit 1 by the insertion space C2. Guided. As a result, the standing pipe unit 1 can be stably lifted without shaking, and the positioning of the fixed pipe 2 and the pipe 2 to be lifted can be easily performed. Furthermore, since the shape of the sleeve opening 10A is set as described above, the gap between the sleeve opening 10A and the stand unit 1 can be filled with a heat insulating material or just filled with a little mortar. It is possible to fill holes and reduce hole filling work.

  In addition, since the length of the standpipe unit 1 is set so as to increase the length of the pipe material, the waste material of the pipe material 2 is reduced, and the material cost, the waste material processing cost, and the like can be reduced. Furthermore, since the length of the standpipe unit 1 is set so that the connection ring 2A (pipe connecting portion) is located 1.5 m or less from the floor on each floor, the welding work on each floor can be easily and safely performed. It becomes possible. In addition, since the lower end portion of the pipe material 2 of the upper vertical pipe unit 1 is attached to the connection ring 2A of the lower vertical pipe unit 1, the upper edge of the connection ring 2A can be welded from above, and the inside of the shaft is narrow Even when the tube material 2 is positioned at a corner (such as near a wall), welding can be easily and accurately performed. Moreover, since the pair of connection plates 3 are disposed on the upper and lower end sides of the tube material 2, the tube materials 2 are firmly connected to each other, and the tube material 2 can be prevented from being distorted or bent. Furthermore, since the wire 21A is passed between the upper and lower connection plates 3, the lower vertical pipe unit 1 can be lifted and guided more stably, and the positioning of the pipe material 2 and the pipe material 2 can be performed more easily. it can.

  On the other hand, in order to temporarily place the standpipe unit 1 for the floor below the unloading space on the second and third floors respectively, after the standpipe unit 1 for the upper floor from the unloading space is disposed as described above, The standing pipe unit 1 for the underground 2nd and 3rd floors can be disposed. As a result, after the start of construction of the standpipe (placement of the standpipe unit 1), such as when the reverse placement method is used or when there are obstacles in the planned placement space, a placement space is formed on the second and third floors underground. Even if it is ensured, the construction can be performed in a short time without affecting the construction process of the entire standpipe.

  Although the embodiment of the present invention has been described above, the specific configuration is not limited to the above embodiment, and even if there is a design change or the like without departing from the gist of the present invention, Included in the invention. For example, in the above-described embodiment, two pairs of connection plates 3 are arranged in one standpipe unit 1, but the standpipe unit 1 has one pair depending on the length, the size of the connection plate 3, and the like. Or three or more pairs may be provided. Further, depending on the size (diameter, length), usage, and the like of the tube material 2, a standing tube unit in which three or more tube materials 2 are arranged in parallel may be used. Furthermore, when viewed in plan, as shown in FIG. 12 (a), it is a vertical pipe unit in which three pipe members 2 are arranged in an L shape, or four pipe members as shown in FIG. 12 (b). It is good also as a standpipe unit which has arrange | positioned 2 squarely. In this case, on the floor of each floor, a sleeve opening having the same shape as the cross-sectional shape of the standpipe unit, that is, an L-shaped or square sleeve opening is formed, and the wire is placed at one place or a plurality of places in consideration of the balance when lifting. 21A is connected and lifted by winch 21.

  As described above, the standpipe construction method and the standpipe unit according to the present invention are extremely capable of installing a standpipe easily even in a narrow construction space and without requiring a large construction machine. Useful.

It is a top view which shows the standpipe unit which concerns on embodiment of this invention. It is AA sectional drawing of FIG. It is a flowchart which shows the procedure by the standing pipe construction method which concerns on embodiment of this invention. FIG. 4 is a diagram showing a state in which a first vertical pipe unit is suspended in the vertical pipe construction method of FIG. 3. FIG. 4 is a view showing a state in which a winch and a wire drum are installed in the standing pipe construction method of FIG. 3. FIG. 4 is a view showing a state in which a tip portion of a winch wire and a connection plate of a first standing tube unit are connected in the standing tube construction method of FIG. 3. It is the side view seen from the BB direction of FIG. FIG. 4 is a view showing a state where the first stand pipe unit is lifted and fixed to a predetermined position in the stand pipe construction method of FIG. 3. FIG. 4 is a diagram showing a state where a second stand pipe unit is lifted in the stand pipe construction method of FIG. 3. FIG. 4 is a diagram showing a state in which the lower end portion of the first standing tube unit and the upper end portion of the second standing tube unit are connected in the standing tube construction method of FIG. 3. FIG. 4 is a view showing a state in which standing pipe units are sequentially arranged in the standing pipe construction method of FIG. 3. It is a top view which shows the modification of this invention, and shows the standpipe unit (a) which has arrange | positioned the pipe material in L shape, and the standpipe unit (b) which has arrange | positioned the pipe material in square shape.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Standing pipe unit 2 Tubing material 2A Connection ring 3 Connection plate (connection member)
3a Connection hole (connected part)
C2 Insertion space 4 Rocket 10 High-rise building (building)
10A Sleeve opening 21 winch (lifter)
21A wire 22 wire drum 23 winch mount 24 shackle 25 suspension wire 26 pulley 27 chain block

Claims (6)

A standing pipe construction method for installing a standing pipe in a building,
A plurality of pipes constituting the vertical pipe are arranged in parallel at a predetermined distance, and connecting members that connect the adjacent pipes to each other face each other so as to sandwich the surface on which the axis of the two pipes is located. The stand pipe unit arranged
Position the standpipe unit in the unloading space provided on the lower floor,
Connect the tip of the wire of the lifting machine installed on the upper floor to the connecting member of the standpipe unit of the unloading space, lift the wire up to a predetermined position and fix it to the building,
The wire is lowered to the unloading space through the fixed upper standing tube unit connecting member, the tip of the wire is connected to the connecting member of the next standing tube unit located in the unloading space, and the wire Roll up and lift up to the lower end of the upper standing pipe unit, connect the lower end of the pipe member of the upper standing pipe unit and the upper end of the pipe member of the raised standing pipe unit, and then sequentially repeat the next standing pipe unit Connect,
A standpipe construction method characterized by that. When the unloading space is not provided on the lowest floor of the standpipe, the standpipe unit for the floor below the unloading space is positioned on the floor, and the standpipe unit for the upper floor from the unloading space is arranged. After installing, arrange a standpipe unit for the floor below the unloading space,
The vertical pipe construction method according to claim 1, wherein: The floor of each floor of the building is penetrated through the standpipe unit, and the size is set so that the clearance with the standpipe unit is reduced after the insulation cover is secured, and the cross section of the standpipe unit Form a sleeve opening of the same shape as the shape,
Arranging the standpipe unit so as to penetrate the sleeve opening;
The vertical pipe construction method according to any one of claims 1 and 2. A standpipe unit constituting a standpipe installed in a building,
A plurality of pipes are arranged in parallel at a predetermined distance,
A pair of metal connection plates is used as a connection member for connecting adjacent pipe materials to each other, and the connection plates are opposed to each other so as to sandwich the surface on which the axis of the two pipe materials is located, and the wire of the lifting machine Arranged to pass through,
Such a pair of connecting members is disposed at least on the upper end side and the lower end side of the pipe material,
At least one connecting member is provided with a connected portion for connecting a wire of a lifting machine,
A standpipe unit characterized by that.   5. The shape of the upper end portion and the lower end portion is set so that the lower end portion of the pipe material of the upper standing pipe unit fits into the upper end portion of the pipe material of the lower standing pipe unit. Standing tube unit as described in Based on the fixed length of the pipe and the distance between each floor, there are many fixed pipes, and the connecting portion between the lower end of the pipe and the upper end of the pipe is located at a predetermined height on each floor, Setting the length of the riser unit;
The standpipe construction method according to any one of claims 1 to 3, wherein:

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