JP5172525B2 - Construction scaffold - Google Patents

Construction scaffold Download PDF

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Publication number
JP5172525B2
JP5172525B2 JP2008200928A JP2008200928A JP5172525B2 JP 5172525 B2 JP5172525 B2 JP 5172525B2 JP 2008200928 A JP2008200928 A JP 2008200928A JP 2008200928 A JP2008200928 A JP 2008200928A JP 5172525 B2 JP5172525 B2 JP 5172525B2
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Japan
Prior art keywords
scaffold
construction
floor
rail
track
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Expired - Fee Related
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JP2008200928A
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Japanese (ja)
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JP2010037790A (en
Inventor
裕 橋本
雅弘 西沢
祥則 徳留
修 井上
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株式会社東芝
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Description

  The present invention relates to a scaffold applied to a nuclear power plant, a thermal power plant and other various building construction work, and in particular, enables movement in the construction area, reduces work adjustments between the construction side and the machine side, and reduces the amount of tools. The present invention relates to a mobile scaffold for construction that can shorten the construction period.
  With reference to FIG. 7 to FIG. 10, a conventional technique of a scaffold structure applied to nuclear plant construction or the like will be described as an example.
  FIG. 7 is a structural diagram (perspective view) of the entire scaffold showing the installation state of the scaffold used when constructing the side wall portion of the concrete building, and FIG. 8 is a longitudinal sectional view of FIG.
  As shown in FIG. 7 and FIG. 8, the side wall part 101 which comprises a concrete building is constructed | assembled on the concrete floor 102 as a wide vertical wall. Forms 103 having a predetermined height and width for placing concrete are temporarily installed in an area to be the wide side wall portion 101 so as to face each other.
  Reinforcing bars 104 are installed between the molds 103, concrete 105 is placed on the reinforcing bars 104 in the gaps between the molds 103, and the side walls 101 are constructed on the concrete floor 102.
  For this work, conventionally, a plurality of scaffolds 110 are arranged adjacent to each other along the width direction of the mold 103.
  By the way, in the construction work of a nuclear power plant, the work on the construction side and the work on the electromechanical side for carrying in a large-diameter pipe or the like with a crane are necessary.
  And as shown in FIG. 9, before constructing the ceiling wall of the predetermined area | region in a carrying-in building, it is in the state which once removed the scaffold 110, inside the side wall part 101, and the piping material 111 of large diameter by the machine electrical side. Etc. with a crane.
  In normal work, the scaffolding for wall construction by the building side interferes during this carry-in work, so there is a process in which the scaffold is partly removed or completely dismantled and carried out again after the previous carry-in. The work of carrying in and assembling the scaffold for ceiling construction is performed.
  After the concrete 105 is hardened on the construction side, the formwork 103 is removed again by installing and using a scaffold. Then, after the building side removes the formwork 103, the first-in piping material 111 is carried in and temporarily placed on the machine electric side.
  After carrying in the piping material 111, as shown in FIG. 10, in order to construct the ceiling wall of the said area | region, the scaffold 110 of the said area | region is again installed by the construction side on the construction side, and the deck plate 112 as a ceiling wall is provided. And the side wall 113 are combined.
In addition, various proposals have been made in the past regarding a scaffold for the construction of a nuclear power plant. For example, as a construction method for suspension scaffolds related to the construction of buildings such as nuclear power plants, thermal power plants, etc., a method of carrying in after the floor construction is completed, installing already installed ceiling walls and brackets, and installing scaffolding with chains Is known (see, for example, Patent Documents 1 and 2).
JP-A-2005-90160 Japanese Patent Laid-Open No. 9-60290
  In the building of a nuclear power plant, a large number of large-diameter pipes are arranged in a room space (planar area, height), and much time is spent for carrying in pre-filled piping materials, curing work, and the like. For this reason, when carrying in the intended piping material (first-in range) and curing work, a lot of scaffolding for wall construction is dismantled and restored, and a period is spent according to the carrying-in work.
  As a result, the building construction process becomes a delay factor, and the target process may not be ensured.
  The present invention has been made in view of such circumstances, and it is possible to reduce the work time by omitting extra steps such as a work to put on a scaffolding that is troublesome twice and a payout work step, In addition, an object is to provide a mobile scaffold for construction of a plant or the like that can reduce the amount of adjustment work between the building side and the ceiling work.
In order to achieve the above object, according to the present invention, there is provided a temporary scaffold for constructing a side wall and a ceiling wall on a floor for building installation, the first track along the side wall on the floor, and the surface of the side wall. provided with a second track, a roller provided on said side wall with the side of the temporary scaffold of the lower end of the temporary scaffold, the first track and the said temporary scaffold through the rollers first in It is mounted so as to be movable along the track of No. 2, and the lower end portion of the scaffolding plate support frame in the temporary scaffold is configured to be inclined so as to rise gradually toward the floor side, and the space below the inclined portion for equipment installation A mobile scaffold for construction, characterized by being formed as:
  In the present invention, the track is preferably a rail provided on a floor or side wall for building installation or a groove provided on a floor or side wall for building installation.
In the present invention, the second track is a rail provided on the surface of the side wall, and this rail is preferably used as a support for piping and other devices arranged near the side wall.
  Moreover, in this invention, it is desirable to use the rail provided in the side wall for building installation as a support tool of piping other apparatus arrange | positioned in the said side wall vicinity.
  According to the present invention, the wall is based on a conventional scaffold structure, and a track is provided on the wall, floor, etc., and the scaffold itself is moved on the track, so that it has been installed on the entire surface of the conventional floor. By reducing the scaffolding and setting a part of the temporary placement area, it is possible to reduce the scaffold material.
  In addition, when equipment materials such as piping materials are brought in and temporarily placed, the scaffold can be removed from the temporary placement area so as to avoid the piping materials, thereby eliminating the need for primary removal and re-installation of the scaffolding. .
  Therefore, according to the present invention, it is possible to reduce the amount of a large number of scaffolds that have been required in the past, and it is possible to install a scaffold in a building with a small amount of scaffold removal and replacement, shortening the process and This can greatly contribute to man-hour reduction.
  Hereinafter, an embodiment of a construction mobile scaffold according to the present invention will be described with reference to FIGS. 1 to 6 as an example of a nuclear plant construction mobile scaffold.
  FIG. 1 is an overall perspective view showing a configuration of a moving scaffold according to an embodiment of the present invention.
  As shown in FIG. 1, the temporary scaffold 7 which comprises the moving scaffold 1 of this embodiment is mounted on the rail 3 as a track | truck arrange | positioned along the side wall part 101 constructed on the floor 2 for buildings. (Hereinafter, this rail is referred to as “floor rail 3”). The floor rail 3 extends on the floor 2 over substantially the entire width of the mold 103 along the side wall portion 101.
  In addition, on the side wall 101 above the floor rail 3, for example, two upper and lower rails 4 and 5 are arranged in parallel with the floor rail 3 (hereinafter, the rail 4 is referred to as a "lower rail 4", the rail 5 is referred to as “upper rail 5”).
  The temporary scaffold 7 is supported on the floor rail 3, the lower rail 4, and the upper rail 5 via rollers 6, respectively.
  That is, the moving scaffold 1 of this embodiment includes a lower rail 4 as a track provided on the floor 2 and along the side wall portion 101, and a roller 6 provided at the lower end of the temporary scaffold 7. A temporary scaffold 7 is mounted so as to be movable in the direction along the floor rail 3 (in the direction of the arrow a in the figure) via these rollers 6. And this movement scaffold 1 can move between the near side shown by the continuous line in FIG. 1, and the back | inner side shown by the virtual line.
  The inner side of the lower end portion 12a of the support member 12 at the lowermost end portion of the temporary scaffold 7 has an upwardly inclined shape, and the lower space of the inclined lower end portion 12a is a space in which the piping material can be arranged. ing. Thereby, the lower space of the support member 12 can be used as a space for installing equipment, that is, an increase space 13a, and the lower portion of the entire space 13 is enlarged.
  FIG. 2 is an enlarged side view showing the temporary scaffold 7 as the moving scaffold shown in FIG. 1, and FIG. 3 is a side view of FIG.
  As shown in FIGS. 2 and 3, the floor rail 3, the lower rail (not shown), and the upper rail 5 are laid on the upper surface of the building floor 2 as a track along the side wall portion 101. Yes.
  A lower roller holding member 8 is provided at the lower end of the temporary scaffold 7. A lower roller 6 a is attached to the lower roller holding member 8 via a shaft 9, and the lower roller 6 a is mounted on the floor rail 3.
  Further, on the upper side of the temporary scaffold 7, a pair of upper and lower upper roller holding members 6 b and 6 b are respectively supported by vertical shafts 11 so as to be rotatable in the horizontal direction. These upper roller holding members 6 b , 6b are provided so as to be sandwiched from above and below with respect to the upper rail 5 provided on the side wall portion 101, and are held without being detached from the side.
  With this configuration, the temporary scaffold 7 can move along the rails 3 and 5 via the lower roller 6a and the upper rollers 6b and 6b.
  FIG. 4 shows a state in which the transfer material 14 is installed on the upper end portion of the temporary scaffold 7. As shown in FIG. 4, after the construction side constructs the side wall 101, the construction scaffold 7 is temporarily removed by applying a conventional method so that there is no hindrance to carrying in and temporarily placing the piping material 16 on the construction side. After that, by installing the construction scaffold 7 again, the piping material 16 can be temporarily placed up to the material installation space 13 including the increase space 13a.
  In addition, after the first-in piping material 16 has been carried in and temporarily placed, the deck plate 17 is installed on the side wall portion 101, the once removed construction scaffolding 7 is installed, and the side wall portion 101, the deck plate 17 and Perform the combination work. Since the construction scaffold 7 can be moved, it may be moved to a position where the deck plate 17 and the side wall 101 are joined.
  Further, when the pipe support is attached at the center of the deck plate 17, it is only necessary to place the transfer material 14 on the construction scaffold 7, so that the work can be performed at the center of the deck plate 17. Also, the piping material 16 can be temporarily placed on the transfer material 14.
  The construction method applied in the present embodiment is substantially the same as the conventional construction method until the installation of the preceding scaffold, but the conventional construction method is achieved by attaching the roller 6 and the rails 3, 4, 5 so that the scaffold to be installed can be moved. The amount of work planned in can be reduced. Moreover, the dismantling range of the construction scaffold 7 is also reduced.
  Further, as shown in FIGS. 3 and 4, the erection scaffold 7 of this embodiment is provided with a roller 6 on the floor 2 side and the side wall 101 side on the foot of the erection scaffold 7, and rails on the side wall 101 and the floor 2. As shown in FIG. 2, the erection scaffold 7 can be moved along the side wall 101 of the region.
  Moreover, according to this embodiment, the piping material 16 can be temporarily placed to the place of the increase space 13a by installing the moving scaffold 1.
  FIG. 5 shows another embodiment of the present invention. As shown in FIG. 5, when the floor 2 has the side groove 120, the side groove 120 can be traveled along the upper rail 5 on the side wall 101 side or the like with the side groove 120 as a lower track. That is, the side groove 120 can be substituted for the rail.
  FIG. 6 shows still another embodiment. In the embodiment shown in FIG. 6, the rail 5 attached to the side wall 101, the device 20 attached after the installation scaffold is removed, and the clamp 19 are combined. As a result, the rail 5 can be used as a support for the pipe 18.
  In the present invention, the pipe 18 is not limited to the fluid supply pipe, and a conduit pipe and other various pipes can be applied.
  According to the construction method using the scaffold of the present embodiment, the number of man-hours for the construction work for dismantling and restoration work for the construction scaffolding that is performed in the construction on the construction side, which is performed when the piping material is pre-filled, can be reduced as compared with the conventional construction method. Moreover, since the installation area of the construction scaffolding is reduced, the piping material can be temporarily placed up to the increased space, and the use of the space can be expanded.
  As described above, according to the present invention, the wall is based on a conventional scaffold structure, the track is provided on the wall, the floor, etc., and the scaffold itself is moved on the track, so that the entire surface of the conventional floor can be moved. It is possible to reduce the amount of scaffolding material by reducing the number of scaffolds that have been installed in a part of the temporary storage area.
  Further, when carrying in and temporarily placing equipment materials such as piping materials, the scaffold can be removed from the temporary placement area so as to avoid the piping materials, thereby eliminating the need for primary removal and re-installation of the scaffolds.
  Therefore, according to the present invention, it is possible to reduce the amount of a large number of scaffolds that have been required in the past, and it is possible to install a scaffold in a building with a small amount of scaffold removal and replacement, shortening the process and This can greatly contribute to man-hour reduction.
1 is an overall perspective view showing a configuration of a mobile scaffold according to an embodiment of the present invention. The enlarged view which shows the area | region used as the movement scaffold by one Embodiment of this invention. The side view which shows the movement scaffold by one Embodiment of this invention. 1 is a detailed view showing a cross section of a moving scaffold according to an embodiment of the present invention. FIG. 5 is a detailed view showing a longitudinal section of a moving scaffold according to another embodiment of the present invention. The longitudinal cross-sectional view which shows the state which used the rail of the moving scaffold by further another embodiment of this invention afterward. The perspective view which shows the scaffold structure by a prior art example. The longitudinal cross-sectional view which shows the scaffold structure by a prior art example. Sectional drawing which shows the piping material temporary placement state by a prior art example. Explanatory drawing which shows the scaffold installation structure by a prior art example.
Explanation of symbols
DESCRIPTION OF SYMBOLS 1 ... Moving scaffold, 2 ... Building floor, 3 ... Floor rail, 4 ... Lower rail, 5 ... Upper rail, 6 ... Roller, 7 ... Temporary scaffolding, 8 ... Lower roller holding member, 9 ... Shaft, 10 ... Arm 11, (vertical) shaft 12 Support member 12 a Lower end 13 Space 13 a Increased space 14 Handing material 16 Piping material 17 Deck plate 18 Piping 19 DESCRIPTION OF SYMBOLS: Clamp, 101 Side wall part, 102 Concrete floor, 103 Formwork, 104 Reinforcing bar, 105 Concrete, 110 Scaffold 111 Piping material, 112 Deck plate, 120 Gutter

Claims (4)

  1. A temporary scaffold for constructing a side wall and a ceiling wall on a building installation floor, wherein a first track along the side wall and a second track on a surface of the side wall are provided on the floor, and the temporary A roller is provided on the side wall side of the lower end of the scaffold and a side of the temporary scaffold, and the temporary scaffold is mounted so as to be movable along the first track and the second track via the roller . A construction mobile scaffold characterized in that a lower end portion of a scaffolding plate support frame in the temporary scaffold is formed in an inclined shape that gradually rises toward the floor, and a lower portion of the inclined portion is formed as a space for equipment installation. .
  2. The first track is a rail or groove provided on the building installation floor, and the second track is configured as a rail or groove provided on the surface of the side wall . Mobile scaffold for construction.
  3. The construction scaffold according to claim 1, wherein the second track is a rail provided on a surface of the side wall, and the rail is used as a support for piping and other devices disposed near the side wall .
  4. 4. The temporary scaffold is mounted on a side wall facing each other on a building installation floor, and the transfer material is an upper work floor at a center position of a deck plate disposed above the temporary scaffold. construction for a mobile scaffold according to item 1 or.
JP2008200928A 2008-08-04 2008-08-04 Construction scaffold Expired - Fee Related JP5172525B2 (en)

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JP2008200928A JP5172525B2 (en) 2008-08-04 2008-08-04 Construction scaffold

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JP5172525B2 true JP5172525B2 (en) 2013-03-27

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JP6369791B1 (en) * 2017-09-29 2018-08-08 株式会社日立プラントコンストラクション Demolition method for torus indoor equipment

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JPS6015840Y2 (en) * 1979-12-07 1985-05-17
JPS5910267Y2 (en) * 1980-03-03 1984-03-31
JPH0569946B2 (en) * 1985-10-28 1993-10-04 Takenaka Komuten Co
JP3127429B2 (en) * 1995-04-30 2001-01-22 新日本製鐵株式会社 Moving scaffold

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