JP2017179766A - Temporary enclosure device for multi-story building, and demolition method of multi-story building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a temporary enclosure device and a demolition method for a multi-story building that eliminates a need on a crane or other lifting equipment and keeps a construction cost low.SOLUTION: A temporary enclosure device includes: a plurality of fixed frames 3, 3... fixed in a circumferential direction on an outer peripheral part of a multi-story building 1 leaving an interval from each other, the fixed frames reaching a top floor; lifting/lowering guides 4, 4 supported on side surface parts of the fixed frames 3 that face each other; a movable panel support body 5 moving up and down by being guided by the pair of lifting/lowering guides 4, 4 that face each other; driving means for moving the movable panel support body 5 up and down; and an outer panel 6 fixed on an outer surface of the movable panel support body 5. The outer panel 6 has a width sufficient for spanning between the outer surfaces of the adjacent fixed frames 3.SELECTED DRAWING: Figure 1

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a multi-layer building temporary enclosure device and a multi-layer building demolition method for preventing dust and the like from being scattered during demolition work of a multi-layer building such as a high-rise building.

  When dismantling multi-layered buildings such as high-rise buildings, the multi-layered building should be enclosed with a temporary enclosure to prevent dust from being scattered during demolition and to prevent demolition materials and workers from falling. It is ensured and the impact on the surrounding environment is taken into consideration.

  Conventionally, as such a temporary enclosure, a building frame consisting of a scaffold reaching the top layer is installed around a multi-layered building, and the surrounding area is covered with a curing sheet. It is generally known to proceed with the dismantling work while dismantling.

  On the other hand, such a temporary enclosure is provided with a temporary enclosure that covers the periphery of the multi-layered portion to be demolished of the multi-layer building and an elevating device that raises and lowers the temporary enclosure, while lowering the temporary enclosure sequentially from the top floor. There is also known a temporary enclosure device that performs a dismantling operation (see, for example, Patent Document 1).

JP 2002-349079 A

  However, if the entire circumference of a conventional multi-layered building as described above is surrounded by a building frame, the amount of scaffolding and curing sheets that make up the building frame is increased, and the scaffolding is dismantled and the curing sheet is removed. Since time is required, there is a problem that the cost increases accordingly.

  On the other hand, the conventional lifting and lowering temporary enclosure device surrounding multiple levels requires a lifting equipment such as a crane and a winch for lifting the temporary enclosure to the top floor, and there is a problem that the cost increases accordingly, Depending on the site conditions at the construction site, cranes and other lifting equipment could not be installed and could not be applied.

  In addition, the conventional elevating type temporary enclosure device has a structure in which the temporary enclosure is supported by a guide member fixed to the multi-layered building. Therefore, a structurally strong steel guide member or the like is required, and the temporary enclosure is provided. Since it is necessary to move these guide members each time they are replaced, that is, every time the temporary enclosure is raised or lowered, there is a problem that work efficiency is poor, the apparatus becomes complicated and large, and costs increase. It was.

  Therefore, in view of such a conventional problem, the present invention aims to provide a temporary enclosure device for a multi-layered building and a method for dismantling the multi-layered building that do not require a lifting equipment such as a crane and can reduce the construction cost. It was made as.

  The feature of the invention according to claim 1 for solving the conventional problems as described above includes a temporary enclosure that moves up and down along a multilayer building and covers an outer periphery of a predetermined layer portion of the multilayer building. In the multi-layer building temporary enclosure device, a plurality of fixed building frames having a height extending from the lowest level to the highest level of the multi-layer building fixed to the outer peripheral portion of the multi-layer building at intervals in the circumferential direction; A lifting guide supported by side surfaces facing each other of each fixed building frame, a movable panel support that moves up and down guided by the pair of lifting guides facing each other, and moves the movable panel support up and down. Driving means and an outer panel fixed to the outer surface of the movable panel support, the outer panel being formed in a width straddling the outer surface portion of the adjacent fixed building frame, the predetermined number of the multilayer building Constructs a temporary enclosure that covers the outer periphery of the layer There is a temporary enclosure device for multi-layer buildings.

  According to a second aspect of the present invention, in addition to the structure of the first aspect, the movable panel support is supported by straddling both the lift bases, a lift base that is guided by the lift guides and moves up and down. And the outer panel is fixed to an outer surface of the framework scaffold.

  According to a third aspect of the present invention, in addition to the configuration of the second aspect, the driving means is rotatable to the lifting platform in a state in which the driving gear meshes with the rack gear formed along the lifting guide and the rack gear. And a power source that rotates the pinion gear.

  The feature of the invention described in claim 4 is that a plurality of fixed building frames extending from the lowest layer to the uppermost layer of the multilayer building are installed at intervals in the circumferential direction on the outer periphery of the multilayer building. A movable panel support that moves up and down in a state of being guided by the lifting guide at the lowermost layer position after supporting a lifting guide having a height to reach the top floor of the multi-layered building on the side surfaces facing each other of the fixed building frame And fixing an external panel having a width across the outer surface of the fixed building frame to the outer surface of the movable panel support, and then moving the movable panel support and the outer panels to the uppermost layer position. By forming a side wall of each outer panel with a side edge of an adjacent outer panel, a temporary enclosure covering the outer periphery of the uppermost layer portion of the multi-layer building is formed. Previous Demolition of a multilayer building that repeats a step of demolishing a multilayer building and a step of moving each movable panel support to a lower layer portion position to form a temporary enclosure that covers the outer periphery of a predetermined layer portion of the multilayer building. Is in the way.

  As described above, the temporary enclosure device for a multilayer building according to the present invention moves vertically along the multilayer building, and includes a temporary enclosure that covers the outer periphery of the predetermined layer portion of the multilayer building. In the temporary enclosure, a plurality of fixed building frames having a height extending from the lowest level to the highest level of the multi-layer building fixed to the outer peripheral portion of the multi-layer building at intervals in the circumferential direction; Elevating guides supported on opposite side surfaces of the building frame, a movable panel support that moves up and down guided by a pair of opposing elevating guides, and drive means that moves the movable panel up and down; An outer panel fixed to the outer surface of the movable panel support, and the outer panel is formed to have a width straddling the outer surface portion of the adjacent fixed building frame, and an outer periphery of a predetermined layer portion of the multilayer building To make a temporary enclosure to cover Therefore, it is possible to lift the temporary enclosure to the highest level without using a lifting equipment such as a crane, and it is necessary to move the guide member every time the temporary enclosure is replaced, that is, every time the temporary enclosure is raised or lowered. In addition, the work can be performed efficiently and the construction cost can be reduced.

  In the present invention, the movable panel support includes a lifting platform that is guided by the lifting guides and moves up and down, and a framework scaffold supported across the lifting platforms, and the outer panel includes the By being fixed to the outer surface of the framework scaffold, the outer panel can be supported movably with a simple structure, and can also be used as a scaffold.

  Further, in the present invention, the driving means includes a rack gear formed along the lifting guide, a pinion gear rotatably supported on the lifting platform in a state of meshing with the rack gear, and the pinion gear rotating. By providing the power source to be driven, it is easy to control starting and stopping, and the positions of a plurality of movable panel supports that support the external panel can be controlled in synchronization.

  In the method for demolishing a multilayer building according to the present invention, a plurality of fixed building frames extending from the lowest layer to the highest layer of the multilayer building are installed at intervals in the circumferential direction on the outer periphery of the multilayer building. Movably moving up and down in a state guided by the elevating guide at the lowermost position after supporting the elevating guide of the height reaching the uppermost floor of the multi-layered building on the side portions facing each other of the fixed building frames A panel support is attached, and an outer panel having a width across the outer surface of the fixed building frame is fixed to the outer surface of the movable panel support, and then the movable panel support and the outer panels are positioned at the highest level. By moving the side edge of each outer panel to the side edge of the adjacent outer panel to form a temporary enclosure that covers the outer periphery of the uppermost layer portion of the multi-layered building. The steps of disassembling the multilayer building for each level and the steps of moving each movable panel support to a lower layer portion position and forming a temporary enclosure covering the outer periphery of the predetermined layer portion of the multilayer building are repeated. Thus, the temporary enclosure can be lifted to the highest level without using a lifting equipment such as a crane, and it is also necessary to move the guide member every time the temporary enclosure is replaced, that is, every time the temporary enclosure is raised or lowered. In addition, the work can be performed efficiently and the construction cost can be reduced.

It is a front view which shows the outline of the temporary enclosure apparatus of the multilayer building which concerns on this invention. It is a schematic plan view same as the above. It is a partial enlarged front view which shows the temporary enclosure apparatus in FIG. It is a partial enlarged front view which shows the state at the time of raising / lowering same as the above. It is a front view which shows the outline of the lifting platform part in FIG. It is a partial enlarged plan view which shows another example of the connection member in FIG. It is a schematic front view which shows each process of the demolition method of the multilayer building which concerns on this invention.

  Next, the embodiment of the temporary enclosure apparatus of the multilayer building which concerns on this invention is demonstrated based on the Example shown in FIGS. In the figure, reference numeral 1 denotes a multi-layered building such as a high-rise building, and reference numeral 2 denotes a temporary enclosure device.

  This temporary enclosure device 2 includes a plurality of fixed building frames 3, 3... Fixed to the outer peripheral portion of the multi-layer building 1 at intervals in the circumferential direction, and the fixed building frames 3, 3. Lifting guides 4 and 4 supported by opposing side portions, a movable panel support 5 that moves up and down guided by a pair of lifting guides 4 and 4 that face each other, and a drive means that moves the movable panel support 5 up and down. And an external panel 6 fixed to the outer surface of the movable panel support 5, and a temporary enclosure 7 composed of each external panel 6 moves up and down along the multilayer building 1, and a predetermined level of the multilayer building 1 It surrounds the outer periphery of the part to prevent scattering of dust, etc., and dismantling materials and workers falling.

  As shown in FIGS. 1 to 3, each fixed building frame 3, 3... Has a plurality of scaffold units 10, 10. An elevating space 11 that is formed at a height reaching the level and penetrates in the vertical direction with a predetermined interval between the fixed building frames 3, 3... Is formed.

  The scaffold units 10, 10... Are constituted by general-purpose portal scaffolds, and scaffold plates 10 b are installed between the portal frame 10 a, 10 a arranged at intervals, and are reinforced by bracing 10 c, 10 c. .

  Each of the scaffolding units 10, 10... Is fixed to the outer surface of the multi-layer building 1 via a fixing member (not shown), and the fixed building frames 3, 3. Installed.

  On the other hand, columnar elevating guides 4, 4 extending from the lowest layer to the uppermost layer are supported via support members 12 on the side surfaces of the adjacent fixed building frames 3, 3.

  The elevating guides 4 and 4 are formed in a column shape by connecting the guide members 4a and 4a up and down along the vertical direction.

  Further, the elevating guides 4, 4 are provided with a rack gear 13 that is added in accordance with the connection of the guide members 4 a, 4 a and continues up and down along the elevating guides 4, 4.

  The movable panel support 5 includes elevators 14 and 14 that move up and down guided by the elevator guides 4 and 4, and a frame scaffold 15 that is supported across the elevators 14 and 14. By moving the bases 14 and 14 up and down, they can be moved along the lifting guides 4 and 4.

  The framework scaffold 15 includes a plurality of scaffold units 10 and 10 (two stages in this embodiment) similar to those used for the fixed building frame 3 in the vertical direction, and a predetermined plurality of layers surrounded by the temporary enclosure 7. The outer panel 6 is fixed to the outer surface.

  As shown in FIG. 5, the driving means includes a rack gear 13 installed along the lifting guides 4, 4, a pinion gear 16 supported by the lifting platform 14 in mesh with the rack gear 13, and a pinion gear 16. A rack and pinion mechanism including a drive motor 17 that is driven to rotate is formed, and by rotating the pinion gear 16 by the drive motor 17, the elevators 14 and 14 are raised and lowered.

  The outer panel 6 is fixed so as to cover the outer surface of the frame scaffold 15, and the width thereof is formed so as to straddle the outer surface portions of the adjacent fixed building frames 3, 3. A temporary enclosure 7 that surrounds a predetermined layer portion of the multi-layer building 1 over the entire circumference is formed by abutting each other with the side edge and each outer panel 6, 6... Being continuous in the circumferential direction.

  In addition, the width | variety of the part over the adjacent fixed building frame 3 of the outer panel 6 is not specifically limited, The width over a part of adjacent fixed building frame 3 may be sufficient, and the width of the adjacent fixed building frame 3 The width may be the same as or greater than.

  For example, the external panels 6 arranged at both end portions of each side of the temporary enclosure 7 project greatly toward the outside, and the four corners of the temporary enclosure 7 are continuous in the circumferential direction.

  The outer panel 6 includes a connecting member 18 that connects the adjacent outer panels 6, and the movement of each of the outer panels 6 is regulated while the side edges are abutted against each other, so that the state of the temporary enclosure 7 can be maintained.

  The connecting member 18 is formed in a U-shaped groove shape made of a resin material or the like, and is fixed to the lower end portion of one of the adjacent external panels 6 and 6. Then, when the side edges of the adjacent outer panels 6 and 6 are abutted, the lower end portion of the other outer panel 6 is fitted into the connecting member 18 supported by the one outer panel 6, and the both 6 and 6 are connected. It is like that.

  In addition, the aspect of a connection member is not limited to the above-mentioned Example, For example, as shown to Fig.6 (a), using the connection member 20 formed in cross-sectional U-shaped groove shape which consists of elastic materials, such as rubber | gum, A structure in which the connecting member 20 is provided vertically on the side edge of the outer panel 6 so as not to interfere when moving up and down with each other, and when in a face-to-face state, the movement in the plate thickness direction is mutually restricted. Alternatively, as shown in FIG. 6 (b), they may be detachably connected to each other by a hook-shaped connecting member 21 straddling between adjacent external panels 6 and 6.

  In the multi-layered building temporary enclosure device 2 configured in this way, the outer panel 6 supported by the movable panel support 5 that is guided by the elevating guides 4 and 4 and moves up and down from the lowermost layer to the uppermost layer portion. Since it can be self-propelled, it does not require lifting equipment such as cranes and can be applied regardless of the site conditions at the construction site.

  Moreover, in this temporary enclosure apparatus 2, when raising / lowering the temporary enclosure 7, it is not necessary to replace the raising / lowering guides 4 and 4, a structure can be simplified and the installation cost can be reduced.

  Furthermore, in the temporary enclosure device 2, the amount of the scaffold and the curing sheet constituting the building frame can be suppressed as compared with the temporary enclosure that encloses the entire existing building with the building frame. The time for removing can be shortened, and the cost can be reduced.

  Next, a method for demolishing a multi-layered building using the temporary enclosure device 2 will be described. In addition, the same code | symbol is attached | subjected to the structure similar to the above-mentioned Example, and description is abbreviate | omitted.

  In the dismantling method of the multi-layer building 1, after installing the temporary enclosure device 2 having the temporary enclosure 7 surrounding the predetermined plurality of layers on the outside of the multi-layer building 1, and moving the temporary enclosure 7 to the uppermost layer position, The dismantling work is sequentially performed from the top layer, and the temporary enclosure 7 is lowered in accordance with the progress of the dismantling work.

  Specifically, first, scaffold units 10, 10... Are assembled sequentially from the ground to the outer periphery of the multi-layer building 1, and the fixed building frames 3, 3. Are installed around the circumference at intervals in the circumferential direction.

  Each of the scaffold units 10, 10... Constituting the fixed building frame 3, 3... Is fixed to the outer surface of the multi-layer building 1 through the fixing member 12, and is supported and stably by the multi-layer building 1. Installed.

  Next, the guide members 4a and 4a are sequentially connected from the position of the lowest layer along the side surfaces of the fixed building frames 3, 3... The guides 4 and 4 are installed, and the lifting guides 4 and 4 are fixed to the side surfaces of the fixed building frames 3, 3.

  The lift guides 4 and 4 are connected to the guide members 4a and 4a constituting the lift guides 4 and 4 and the rack gear 13 is also connected so that the rack gear 13 is installed vertically.

  Next, in the lowermost layer portion, the lifting platforms 14 and 14 are attached to the lifting guides 4 and 4 so as to be lifted and checked, and supported by the lifting guides 4 and 4 disposed so as to face each other. The elevators 14 and 14 are adjusted so that they are synchronized with each other.

  Further, the movable platform support 5 is formed by supporting the frame scaffold 15 across the lifting platforms 14 and 14 supported by the lifting guides 4 and 4 disposed so as to face each other.

  Further, the outer panel 6 having a width over the outer surface of the fixed building frame 3, 3... Is fixed to the outer surface of the movable panel support 5, and the side edges of the outer panels 6 adjacent to each other in the lowermost layer portion. Are put together, and a temporary enclosure 7 is constructed that surrounds a plurality of layer portions of the lowermost layer portion of the multi-layered building 1 by each external panel 6.

  In this state, the distortion of the entire temporary enclosure 7 and the state of butt and connection between the external panels 6 are confirmed. If there is a problem, the attachment of the external panel 6 is adjusted.

  Next, after the adjustment is completed, as shown in FIG. 7 (a), each movable panel support 5 is moved to the uppermost position while being guided by the elevating guides 4 and 4 by the driving means, and each external panel 6 is moved. Move to the top layer position.

  In addition, as shown in FIG. 4, the movement of each movable panel support body 5 and the external panel 6 may be performed for each movable panel support body 5, and each movable panel support body 5 is synchronized with the temporary enclosure 7 as a whole. May be moved.

  And the temporary enclosure 7 which covers the outer periphery of the uppermost layer part of the multilayer building 1 is formed by mutually abutting and connecting the side edge of each outer panel 6 with the side edge of the adjacent outer panel 6 in the highest layer position.

  Next, use a simple elevator installed in the multi-layer building 1 to move other equipment such as heavy machinery for dismantling and small crawler cranes to the top floor, and start dismantling of the concrete frame part sequentially from the top floor. .

  At that time, since the entire circumference of the plurality of layers at the uppermost layer position is surrounded by the temporary enclosure 7, the dismantling material and the like generated by the dismantling of the concrete frame part are prevented from being scattered and dropped and noise is prevented.

  Then, when the demolition work on the top floor and the carry-out work of the dismantling material are completed, the heavy equipment for dismantling is moved to a lower level using a simple elevator or the like.

  Next, as shown in FIG. 7B, each movable panel support 5 is lowered, and each external panel 6 constituting the temporary enclosure 7 is lowered by one layer.

  Then, as shown in FIG. 7 (c), when the lowering of all the movable panel supports 5 is completed and the temporary enclosure 7 is lowered, the upper ends of the lifting guides 4 and 4 are disengaged from the height of the disassembled uppermost floor. It is removed from the fixed building frames 3, 3... And removed by using a simple elevator installed inside the multi-layer building 1 or the like.

  Further, the scaffold units 10, 10... Constituting the fixed building frames 3, 3... Are removed according to the height of the disassembled uppermost floor, and the scaffold units 10, 10... Is removed using a simple elevator or the like installed inside the multi-layer building 1 or the like.

  And each time each level of the multilayer building 1 is dismantled, each movable panel support 5 is moved to the lower layer position, and the temporary enclosure 7 covering the outer periphery of the predetermined level portion of the multilayer building 1 is formed. Then, the work of removing the guide members 4a, 4a constituting the existing uppermost lifting guides 4, 4 and the scaffold units 10, 10 ... constituting the fixed building frames 3, 3 ... are repeated.

  In this way, after repeating the dismantling process from the start of dismantling work on the top floor of the multi-layer building 1 to be dismantled to the first floor and the moving process of the temporary enclosure 7, and finally dismantling the ground floor, The dismantling of the multi-layered building 1 scheduled for the dismantling is completed.

DESCRIPTION OF SYMBOLS 1 Multi-layered building 2 Temporary enclosure 3 Fixed building frame 4 Elevating guide 5 Movable panel support body 6 External panel 7 Temporary enclosure 10 Scaffolding unit 11 Elevating space 12 Support member 13 Rack gear 14 Elevating stand 15 Framework scaffold 16 Pinion gear 17 Drive motor 18 Connecting member

Claims (4)

In a temporary building apparatus for a multilayer building that moves up and down along the multilayer building and includes a temporary enclosure that covers an outer periphery of a predetermined layer portion of the multilayer building,
A plurality of fixed building frames having a height extending from the lowest layer to the highest layer of the multi-layer building fixed at intervals in the circumferential direction on the outer peripheral portion of the multi-layer building, and the fixed building frames facing each other Elevating guide supported by the side surface portion, a movable panel support that moves up and down guided by the pair of elevating guides facing each other, a drive means that moves the movable panel support up and down, and the movable panel support And an external panel fixed to the outer surface of the
The outer panel is formed in a width straddling the outer surface of the adjacent fixed building frame, and constitutes a temporary enclosure that covers an outer periphery of a predetermined layer portion of the multilayer building. Temporary fence device.   The movable panel support includes a lifting platform that moves up and down guided by the lifting guides, and a framework scaffold supported across the lifting platforms, and the outer panel is mounted on an outer surface of the framework scaffold. The movable temporary enclosure for a multi-layered building according to claim 1, which is fixed.   The driving means includes a rack gear formed along the elevating guide, a pinion gear rotatably supported by the elevating base while meshing with the rack gear, and a power source for rotating the pinion gear. The movable temporary enclosure for a multilayer building according to claim 2. A plurality of fixed building frames extending from the lowest layer to the uppermost layer of the multilayer building are installed at intervals in the circumferential direction on the outer periphery of the multilayer building, and the side surfaces of the fixed building frames facing each other After supporting the elevating guide that reaches the top floor of the multi-layered building, attach the movable panel support that moves up and down while being guided by the elevating guide at the lowermost position, and outside the movable panel support Fix the outer panel with a width across the outer surface of the fixed building frame on the side,
Thereafter, the movable panel support and the external panels are moved to the uppermost layer position, and the side edges of the respective outer panels are brought into contact with the side edges of the adjacent outer panels, so that the uppermost layer of the multilayer building is Form a temporary enclosure that covers the outer periphery of the part,
Thereafter, the step of dismantling the multi-layer building from the top layer for each layer, and moving each movable panel support to the lower layer part position to form a temporary enclosure that covers the outer periphery of the predetermined layer portion of the multi-layer building The method of demolishing a multi-layered building is characterized by repeating the process.

Images