JP2007205043A - Construction method and dismantling method of scaffolding for high-rise building - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a construction method and a dismantling method of a scaffolding for high-rise building dispensing with a tower for installing and lifting a lifting base and efficiently loading/unloading the lifting base. <P>SOLUTION: The scaffolding is erected in the predetermined number of steps along an external wall or a skeleton of a building, and each tread in a predetermined vertical row of the scaffolding is removed to form a vertically communicating lifting space for the lifting base. A guide rail for vertically guiding the lifting base is vertically installed at the external wall or the skeleton of the building which faces the lifting space. The lifting base is liftably mounted to the guide rail, and a driving means is provided for lifting the lifting base along the guide rail. Scaffolding materials are transported to the upper part of the scaffolding finished with erection, and the next step scaffolding is built up on both sides of the lifting space. This is sequentially repeated to construct the scaffolding in an upstairs direction. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a construction method and a dismantling method for a building scaffold constructed along an outer wall or a frame of a high-rise building at a construction site.

  Conventionally, scaffolds constructed for work in renovation of buildings and apartments are generally constructed by lifting materials with a crane. In places where cranes cannot be carried, one tread on each step of the partially assembled scaffold is removed to form a vertical space, and a pair of vertical rails are provided in the same space, and a winch is hung on the top of the rails. The suspended beam is installed, the lifting platform that moves up and down in contact with the rail is connected to the wire rope of the winch, the scaffold components are transported by the lifting platform, the scaffold is built up in order and disassembled in order downward (For example, refer to Patent Document 1). By the way, in the technique of the said patent document 1, the winch which raises / lowers a raising / lowering stand is installed in the hanging beam of the top part. Therefore, it is necessary for an operator to carry a heavy winch upward, and there is a problem involving labor. Moreover, since the load acts on the scaffold during transportation of the material, only a small amount can be transported, and a small winch is inefficient because the amount of material placed on the lifting platform is limited.

  Therefore, a predetermined number of stages of scaffolding are built along the outer wall or frame of the building, a tower is installed on the rooftop of the building, a stepping board on the scaffolding directly under the tower is removed to form a lifting space, and the lowermost scaffolding of the lifting space A hoisting stand is placed above the root tangle, a winch for hoisting is installed on the bottom scaffold tangle far from the elevating space, the wire rope of the winch is stretched upward through a pulley, and the wire rope is attached to the roof tower Connected to the lifting platform by passing through the pulley and extending to the lower part of the lifting space, the guide wire is tensioned from the roof tower to the bottom of the scaffolding, and restrained to slide the guide wire on both sides behind the lifting platform. The lifting platform is equipped with a holding means, and the scaffolding material is transported to the upper side of the scaffold already built by the lifting platform, and the next stage scaffolding is assembled on both sides of the lifting space, and this is repeated in order to build the scaffolding upward. Do Unishi was techniques have been proposed. However, the technique has a problem that it takes time to install the tower. Installation of the tower requires work by skilled workers, and it must be carefully assembled with due consideration of installation strength and the like, and it cannot cope with the lack of skilled workers today.

Also, instead of the elevator using this tower, guide rails and racks are installed vertically in the elevator space, a gear driven by a motor is provided in the elevator, and the gear is rotated by engaging the gear with the rack. Patent Document 2 proposes a technology for a construction elevator that can be moved up and down. However, since this construction elevator is installed outside the scaffolding, loading and unloading of materials such as materials on the lifting platform is restricted to one direction in the front and back, and the loading and unloading work could not be performed efficiently. .
Japanese Patent Laid-Open No. 2000-274069 JP 2000-31578 A

  The problem to be solved by the present invention is to solve these conventional problems, do not require a tower for installing and lifting the lifting platform, and can efficiently load and unload luggage on the lifting platform It is to provide a construction method and a disassembly method.

The configuration of the present invention that solves this problem is as follows.
1) A predetermined number of steps are installed along the outer wall or the frame of the building, each step board in a predetermined column of the scaffold is removed to form an elevator space that communicates vertically, and the building facing the elevator space A guide rail that vertically guides the lifting platform is installed on the outer wall or the frame, the lifting platform is attached to the guide rail so that it can be moved up and down, and driving means for moving the lifting platform along the guide rail is provided. For high-rise buildings, characterized in that materials for construction are transported above the already constructed scaffolding, the next stage scaffolding is assembled on both sides of the lifting space, and this is repeated in order to build the scaffolding upward. Scaffolding construction method 2) The drive means of the lifting platform has a vertical rack on the outer wall or frame of the building facing the lifting space, the lifting platform is equipped with a gear that is rotated by a motor, and the gear meshes with the rack. To rotate the gear 1) The construction method of the scaffold for high-rise building described in 1) above, wherein the guide rail and the rack can be connected to each other with a predetermined length. A guide rail and a rack were added above the already used scaffold to construct the next stage scaffold, and the lifting platform was raised above the already constructed scaffold to transport the scaffolding material to assemble the next stage scaffold. The method of constructing a scaffold for high-rise buildings described in 2) 4) The building is under construction, and the scaffold is constructed to an unconstructed height so that the lifting platform can be raised above the constructed floor. 5) Construction method of scaffold for high-rise building according to any one of 1) to 3) 5) A predetermined number of steps are installed along the outer wall or the frame of the building, and each step board in a predetermined column of the scaffold is removed and communicated vertically. Form a lifting space for the lifting platform A guide rail is installed vertically on the outer wall or frame of the building that faces the descending space. The guide rail is installed vertically on the guide rail, and the elevator is attached to the guide rail so that it can be raised and lowered. The platform is constructed by transporting the scaffolding material above the scaffolds that have been installed on the lifting platform, assembling the next stage scaffolds on both sides of the lifting space, and building the scaffolds in the upward direction by repeating this in order. After dismantling the top scaffold, dismantle the scaffolding material disassembled on the lifting platform, then disassemble the lower scaffold and transport it downward on the lifting platform, and repeat this in order. 6) Demolition method of high-rise building scaffolding, characterized by dismantling the scaffold in the downstairs direction. 6) The lifting platform drive means installs a vertical rack on the building outer wall or frame facing the lifting space , A gear that is rotated by a motor on a lifting platform 6) The method for disassembling a scaffold for high-rise building described in 5) above, wherein the gear is engaged with the rack and the gear is rotated to raise and lower the lifting platform. It can be connected and disassembled with a length, and at the time of construction, a guide rail and a rack are added to the upper part of the already installed scaffolding to build the next stage scaffolding, and the lifting platform is already installed. Raise the upper part to transport the scaffolding material and assemble the next stage scaffolding.When disassembling, transport the disassembled scaffolding material downward, disassemble the disassembled guide rail and rack, and then lower the lower stage 6) The dismantling method for a high-rise building scaffold described in 6) above, in which the scaffolds are dismantled after working on the multi-stage scaffolding constructed along the outer wall or the frame of the building, Remove the treads and move them up and down. Form a lifting space for the lifting platform that communicates, install a vertical guide rail that guides the lifting platform in the vertical direction on the outer wall or housing of the building facing the lifting space, and attach the lifting platform to the guide rail so that it can be raised and lowered, Provide driving means to raise and lower the lifting platform along the guide rail, dismantle the uppermost scaffold and transport the scaffolding material disassembled with the lifting platform, then disassemble the lower scaffolding and lower with the lifting platform The dismantling method for a high-rise building scaffold, characterized in that the scaffold is demolished in the downstairs direction by repeating this in order 9) The outer wall of the building where the drive means of the lifting platform faces the lifting space Alternatively, a vertical rack is installed on the housing, and a gear that is rotated by a motor is provided on the lifting platform. The gear is engaged with the rack and the gear is rotated to move the lifting platform up and down. ) How to disassemble scaffolds for high-rise buildings 10) Guide rails and racks having a predetermined length can be connected and disassembled, and the guide rails are connected to the outer wall or frame of the building facing the formed lifting space by the number of steps of the constructed scaffold. The high-rise building scaffolding as set forth in 9), wherein a rack is installed, the dismantled scaffolding material is transported downward, the disassembled step guide rail and rack are disassembled, and then the lower scaffolding is disassembled. Is in the dismantling method.

  According to the present invention, since no tower is required, the elevating equipment can be easily installed even if it is not an expert. In addition, since the lifting platform moves up and down in the space from which the footboards of the scaffolding are removed, loading and unloading of luggage can be performed on both sides of the lifting platform, work can be performed efficiently, and the construction time and construction period of the scaffolding can be shortened.

  In the present invention, there are a method of installing guide rails at once over the ascending / descending space, and a method of extending by extending step by step in parallel with the construction of the scaffold, and arbitrarily depending on the scale of the building etc. To be elected. Embodiments of the present invention will be specifically described below with reference to the drawings.

  The first embodiment shown in FIGS. 1 to 6 is an example in which the present invention is applied to the renovation of the outer wall of a high-rise apartment. 1 and 2 are front views of the scaffolding of Example 1, FIG. 3 is a side view of the lifting equipment of Example 1, FIG. 4 is a plan view of the lifting equipment of Example 1, and FIGS. It is explanatory drawing which shows construction of. In the figure, 1 is a scaffolding entanglement, 1a is a jack base, 2 is a lifting platform, 2a is a door, 2b is a motor, 2c is a gear, 2d is a wheel, 3 is a guide rail, 3a is a top pad, 4 is a rack, 5 Is a sensor, 5a is a limit switch, 6 is a lifting space, 7 is a scaffold, 7a is a standing frame, 7b is a brace, 7c is a tread, 7d is a seat, 8 is an operation panel, and A is a building.

  The lifting platform 2 of the first embodiment includes doors 2a on both sides, a motor 2b with a speed reducer on the upper side, a gear 2c geared between the rack 4 and a gear attached to the output shaft of the motor 2b, and a rear surface. A plurality of wheels 2d that run on the guide rail 3 are provided on the side, and a brake device (not shown) that holds a fixed position so as not to descend during stoppage is provided.

  First, as shown in FIG. 5 (a), the scaffolding entanglement 1 is laid by the jack base 1a on the ground surface around the building A, and the 1 to 5 stage scaffolding 7 is assembled by a normal method, and FIG. 5 (b). As shown in FIG. 4, the vertical space 6 is formed by removing all the vertical treads 7c and braces 7b of the scaffold 7 in which the vertical space 6 is to be formed. Next, as shown in FIGS. 1 and 2, a guide rail 3 and a rack 4 having a predetermined length are connected to the wall surface position of the building A facing the elevating space 6 by a length higher than the uppermost scaffold 7. The elevator 2 is arranged at the lowest position of the elevator space 6 so that the wheels 2d are fitted into the guide rail 3 and the gear 2c is engaged with the rack 4. A sensor 5 is attached to the lift 2, a limit switch 5 a for stopping the lift 2 close to the sensor 5 is attached to the upper end of the vertical frame 7 a, and the lift 2 is operated on the ground surface at the lowest position of the vertical frame 7 a. Install the operation panel 8.

  Next, as shown in FIG. 6 (a), materials for the scaffold 7 (standing frame 7a, bracing 7b, tread 7c, seat 7d) to be constructed are loaded on the lifting platform 2, and the motor 2b is operated to mount the lifting platform 2 Raise. When the lifting platform 2 is raised above the scaffold 7 that has been installed, the motor 2b is stopped by the limit switch 5a, and the material 7 is taken out on the scaffolds 7 that are installed on both sides, and the scaffold 7 is assembled on both sides of the lifting space 6. This is repeated in order to build the scaffold 7 in the upward direction as shown in FIG. When the repair of the building A is completed, the scaffold 7 is disassembled in order from the uppermost scaffold 7 and transported downward by the lifting platform 2 and disassembled in the reverse order of construction.

  According to Example 1, since no tower is required, the lifting equipment can be easily installed even if it is not an expert. In addition, since the lifting platform 2 moves up and down in the space from which the footboard 7c of the scaffold 7 is removed, it is possible to load and unload loads such as materials on both sides of the lifting platform 2, and work can be performed efficiently, and the scaffold 7 is constructed and disassembled. It became possible to shorten the construction period.

  The second embodiment shown in FIGS. 7 and 8 is an example in which the present invention is applied to the dismantling of a scaffold constructed by a conventional method. 7 and 8 are explanatory views showing the dismantling of the scaffold according to the second embodiment.

  In Example 2, as shown in FIG. 7 (a), the vertical treads 7c and braces 7b of the scaffold 7 where the lifting space 6 is to be formed are removed to form the lifting space 6, and the building facing the lifting space 6 A guide rail 3 and a rack 4 having a predetermined length are connected to the wall surface of A for the height of the scaffold 7 and are the same as in the first embodiment at the lowest position of the lift space 6 as shown in FIG. A lifting platform 2 having a structure is arranged to fit the wheel 2d into the guide rail 3 and to engage the gear 2c with the rack 4. A sensor 5 is attached to the lift 2, a limit switch 5 a for stopping the lift 2 close to the sensor 5 is attached to the upper end of the vertical frame 7 a, and the lift 2 is operated on the ground surface at the lowest position of the vertical frame 7 a. Install the operation panel 8.

  As shown in FIG. 8 (a), the scaffolding material (standing frame 7a, bracing 7b, tread 7c, seat 7d) in which the motor 2b is operated to raise the lifting platform 2 to the uppermost stage and the scaffolds 7 on both sides are dismantled. It is loaded on the lifting platform 2 and transported downward. By repeating this, as shown in FIG. 8 (b), the lower to higher scaffolds 7 are sequentially disassembled and transported. Thus, the scaffold constructed by the conventional method can be quickly and safely disassembled by the present invention. Other reference numerals and configurations are the same as those in the first embodiment.

  FIG. 9 shows another example of the first embodiment in which the present invention is applied to a building under construction. FIG. 9 is an explanatory diagram illustrating the construction of a scaffold according to another example of the first embodiment. In another example of Example 1 shown in FIG. 9, as shown in FIG. 9A, after the first stage scaffolding 7 is built around the foundation of the building A before construction, the first floor of the building A is As shown in FIG. 9 (b), the scaffold 7 is constructed by constructing the second floor by further constructing the scaffold 7 and then forming the elevating space 6 in the same manner as in the first embodiment. All the vertical treads 7c and braces 7b are removed and the lifting platform 2 is moved up and down. In this way, in the new construction, the scaffolding 7 is erected to an unstructured height, the lifting platform 2 is raised above the already constructed floor, and the scaffolding material is transported to build the scaffolding and the building A in parallel. Can be done. In other respects, the reference numeral, configuration, and operational effects are the same as those in the first embodiment.

  The present invention is suitably used for building and dismantling a scaffold safely and quickly in a high-rise building or the like where a crane cannot be carried.

It is a front view of the scaffolding of Example 1. It is a front view of the scaffolding of Example 1. It is a side view of the raising / lowering equipment of Example 1. It is a top view of the raising / lowering equipment of Example 1. It is explanatory drawing which shows construction of the scaffold of Example 1. FIG. It is explanatory drawing which shows construction of the scaffold of Example 1. FIG. It is explanatory drawing which shows the dismantling of the scaffold of Example 2. FIG. It is explanatory drawing which shows the dismantling of the scaffold of Example 2. FIG. It is explanatory drawing which shows construction of the scaffold of the other example of Example 1. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Scaffolding root 1a Jack base 2 Lifting platform 2a Door 2b Motor 2c Gear 2d Wheel 3 Guide rail 3a Top part reservation 4 Rack 5 Sensor 5a Limit switch 6 Lifting space 7 Scaffold 7a Standing frame 7b Bracing 7c Step board 7d Seat 8 Operation board object

Claims (10)

  Build a predetermined number of scaffolds along the outer wall or frame of the building, remove each step board in a predetermined column of the scaffold to form a lifting space for the lifting platform that communicates up and down, and the outer wall of the building facing the lifting space or A guide rail that vertically guides the elevator to the frame is installed vertically, the elevator is attached to the guide rail so that it can be raised and lowered, and driving means for raising and lowering the elevator along the guide rail is provided. Of a high-rise building scaffold, characterized in that the scaffolding is constructed in the upward direction by assembling the next stage scaffolding on both sides of the lifting space by assembling the scaffolding above the already constructed scaffolding. Construction method.   The drive means of the lifting platform has a vertical rack installed on the outer wall or housing of the building facing the lifting space, and the lifting platform is equipped with a gear that is rotated by a motor. The gear is meshed with the rack and the gear is rotated. The construction method for a high-rise building scaffold according to claim 1, wherein the platform is moved up and down.   A guide rail and a rack of a predetermined length can be connected, and a guide rail and a rack are added to the upper part of the already installed scaffolding for the next stage scaffolding, and a lifting platform is already installed. The construction method of the scaffold for high-rise buildings according to claim 2, wherein the scaffold is assembled by assembling the scaffold of the next stage by raising the scaffold to above.   The construction of a high-rise building scaffolding according to any one of claims 1 to 3, wherein the building is under construction, the scaffolding is erected to an unstructured height, and the lifting platform can be raised above the already constructed floor. Method.   Build a predetermined number of scaffolds along the outer wall or frame of the building, remove each step board in a predetermined column of the scaffold to form a lifting space for the lifting platform that communicates up and down, and the outer wall of the building facing the lifting space or A guide rail that vertically guides the elevator to the frame is installed vertically, the elevator is attached to the guide rail so that it can be raised and lowered, and driving means for raising and lowering the elevator along the guide rail is provided. Is assembled above the scaffold, and the next stage scaffolds are assembled on both sides of the lifting space, and this is repeated in order to build the scaffolds upstairs, work on the constructed scaffolds, and then the top scaffold The scaffold material dismantled with the lifting platform is transported downward, then the lower scaffolding is disassembled and transported downward with the lifting platform, and this is repeated in order to disassemble the scaffold downward. Characterized by high Disassembling method of building scaffolding.   The drive means of the lifting platform has a vertical rack installed on the outer wall or housing of the building facing the lifting space, and the lifting platform is equipped with a gear that is rotated by a motor. The gear is meshed with the rack and the gear is rotated. The method for disassembling a scaffold for high-rise buildings according to claim 5, wherein the lifting platform is moved up and down.   A guide rail and a rack with a predetermined length can be connected and disassembled. At the time of construction, a guide rail and a rack are added above the already installed scaffold to install the next stage scaffold. The scaffolding material is raised to the top of the already constructed scaffolding to transport the scaffolding material to assemble the next-stage scaffolding. At the time of dismantling, the dismantling scaffolding material is transported downward, and then the dismantled guide rail and rack 7. The method for dismantling a scaffold for high-rise buildings according to claim 6, wherein the scaffold is disassembled and the lower scaffold is then dismantled.   After working on the multi-stage scaffolding built along the outer wall or frame of the building, remove each step board in the specified column of the scaffold to form a lifting space for the lifting platform that communicates vertically, facing the lifting space A guide rail that vertically guides the lifting platform is installed on the outer wall or frame of the building, the lifting platform is attached to the guide rail so that it can be raised and lowered, and driving means for moving the lifting platform along the guide rail is provided. Disassemble the upper scaffolding and transport the scaffolding material disassembled on the lifting platform, then disassemble the lower scaffolding and transport it downward on the lifting platform, and repeat this in order to disassemble the scaffolding downstairs A method for dismantling a scaffold for high-rise buildings, characterized in that   The drive means of the lifting platform has a vertical rack installed on the outer wall or housing of the building facing the lifting space, and the lifting platform is equipped with a gear that is rotated by a motor. The gear is meshed with the rack and the gear is rotated. The method for disassembling a scaffold for high-rise buildings according to claim 8, wherein the lifting platform is moved up and down.   Guide rails and racks having a predetermined length can be connected and disassembled, and the guide rails and racks are connected by the number of steps of the scaffolds already built on the outer wall or the frame of the building facing the formed lifting space. The dismantling of the scaffold for high-rise building according to claim 9, wherein the dismantled scaffolding material and the rack are disassembled after the dismantled scaffolding material is transported downward, and the lower scaffolding is dismantled thereafter. Method.

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