JP2023101427A - Distributor climbing system and construction method of structure - Google Patents

Abstract

To provide a distributor climbing system capable of climbing keeping stability, provided with a concrete pipe.SOLUTION: A distributor climbing system 1 comprises a distributor 10 provided with a concrete pipe 15, an upper frame 20 constructed surrounding the distributor 10 and relatively vertically movable in relation to the distributor 10, a lower frame 30 constructed surrounding the upper frame 20 and relatively vertically movable in relation to the upper frame 20, and a climbing device 40 provided to the upper frame 20 and capable of pushing up the distributor 10 upward. Locking parts 13, 23, 33 laterally retractable are provided to a lower end part of the distributor 10, the upper frame 20, and the lower frame 30.SELECTED DRAWING: Figure 1

Description

The present invention relates to a distributor climbing system that raises a distributor having concrete pipes along a building skeleton under construction, and a method of constructing a structure using this distributor climbing system.

BACKGROUND ART Conventionally, a distributor may be used when placing concrete for a high-rise building (see Patent Literature 1). A distributor is a vertical concrete pipe that is temporarily supported by the frame of a building under construction. When pouring concrete for the top floor (construction floor) of a building under construction, a concrete pumping car is connected to the lower end of the distributor, and a hose is attached to the upper end of the distributor. When concrete is pumped from the concrete pumping vehicle in this state, the concrete is discharged from the tip of the hose through the distributor.

Patent Document 1 discloses a concrete distributor that includes a base mount detachable from a high-rise structure, a fixed column erected on the base frame, a rotating column rotatably provided on the fixed column, a telescopic four-stage boom drivably connected to the rotating column, a hose reel provided on the rotating column, and a friction-resistant rubber hose extending along the telescopic four-stage boom on the hose reel. A concrete supply hose extending along the side of the high-rise structure is connected to the hose reel of the concrete distributor.
Patent Document 2 discloses a distributor that includes a first concrete pipe that is connected to a concrete supply device placed on the ground and extends vertically along the formwork, and a second concrete pipe that is connected to the first concrete pipe.

JP-A-7-207941 Japanese Patent Application Laid-Open No. 2007-217906

An object of the present invention is to provide a distributor climbing system capable of climbing a distributor provided with concrete pipes while maintaining stability, and a method of constructing a structure using this distributor climbing system.

The inventors of the present invention have focused on a system for climbing a distributor having a concrete pipe, in which an upper frame and a lower frame are provided surrounding a pillar that supports the distributor, and a climbing device is provided in the upper frame. When the distributor is climbed, a plurality of locking portions (corresponding to arms) attached to the lower end of the distributor, the upper frame, and the lower frame are locked to the floor and temporarily fixed, thereby enabling the distributor to be climbed while maintaining stability, and arrived at the present invention.
A distributor climbing system (for example, a distributor climbing system 1 to be described later) of a first invention is a distributor (for example, a distributor 10 to be described later) having a concrete pipe (for example, a concrete pipe 15 to be described later) is raised along a building frame (for example, a building frame 2 to be described later) under construction. 0), a lower frame (e.g., a lower frame 30 described later) that surrounds the upper frame and is capable of moving vertically relative to the upper frame, and a climbing device (e.g., a climbing device 40 that will be described later) that is provided in the upper frame and capable of pushing up the distributor (e.g., a climbing device 40 that will be described later).

Conventionally, it has been difficult to maintain a stable posture during climbing for a climbing distributor that rises along the building frame.
Therefore, according to the present invention, an upper frame and a lower frame are provided so as to surround a distributor provided with a concrete pipe, and locking portions that can project and retract sideways are provided in the distributor, the upper frame, and the lower frame so that the locking portions of the distributor, the upper frame, and the lower frame can be locked to the floor of each floor.
Therefore, after pulling up the upper frame upward with a chain block or the like, etc., the process of stopping the upper floor on the floor of the upper frame, pulling up the lower frame upside down with a chain block, etc., and then removing the floor on the upper floor with a lower frame locks, and the destraved device is a destraved device. After climbing in the distributor, the process of locked on the floor on the upper floor can be repeated in order to climb the stability of the concrete pipe with stability.

In a distributor climbing system (for example, a distributor climbing system 1 to be described later) of the second invention, a guide rail (for example, a guide rail 17 to be described later) is provided on a side surface of the distributor and has guide holes (for example, guide holes 16 to be described later) provided at predetermined intervals. 43), a jack (for example, a jack 44 described later) for raising and lowering the upper unit with respect to the lower unit, a lower claw (for example, a lower claw 45 described later) provided on the lower unit and capable of engaging with the guide hole by rotating, and an upper claw (for example, an upper claw 46 described below) provided on the upper unit and capable of engaging with the guide hole by rotating.

According to the present invention, when the distributor is to be climbed, the first step is to raise the upper unit by jacking up the upper unit so that the upper claw is not locked in the guide hole, but the upper claw is locked in the guide hole to raise the distributor, and the second step is to lower the upper unit by lowering the upper claw so that the upper claw is unlocked from the guide hole but the lower claw is locked in the guide hole so that the distributor is temporarily supported by the climbing apparatus. As a result, the distributor provided with the concrete pipe can be easily and reliably raised.

A method of constructing a structure according to a third aspect of the present invention is a method of constructing a structure using the above-described distributor climbing system, comprising: a first step (for example, step S11) of constructing a lower part of the structure, and providing a floor opening (for example, a floor opening 3 described later) in the floor slabs of each floor of the lower part (for example, a step S11 described later); A second step (for example, step S12 to be described later) of locking the lower frame to the floor of the n (n is a natural number) floor, pulling out the locking portion of the lower frame to lock it to the floor of the (n+1) floor, and pulling out the locking portion of the upper frame to lock it to the floor of the (n+2) floor (for example, step S12 described later); A fourth step (for example, steps S14 to S16 described later) of pulling up the upper frame by one layer to pull out the locking portion of the upper frame with a block and locking it to the floor of the (n+3)th floor (for example, steps S14 to S16 described later); a fifth step of storing the locking portion of the lower frame, pulling up the lower frame by one layer with a chain block, pulling out the locking portion of the lower frame to lock it to the floor of the (n+2)th floor (for example, steps S17 to S19 to be described later); Then, a sixth step (for example, steps S20 to S22 described later) of pulling up the distributor by one layer by the climbing apparatus, pulling out the locking portion of the distributor, and locking it on the floor of the (n+1)th floor (for example, steps S20 to S22 described later), and a seventh step (for example, step S23 described later) of repeating the steps from the third step to the sixth step.

According to the present invention, the following steps are sequentially repeated: lifting the upper frame upward with a chain block or the like to lock it on the floor of the upper floor with the engaging portion of the upper frame; after climbing, lifting the lower frame upward with the chain block or the like and locking it with the floor of the upper floor with the locking portion of the lower frame; I can.

Advantageous Effects of Invention According to the present invention, it is possible to provide a distributor climbing system capable of climbing a distributor provided with concrete pipes while maintaining stability, and a method of constructing a structure using this distributor climbing system.

1 is a schematic side view of a distributor climbing system according to an embodiment of the invention; FIG. 2 is a cross-sectional view of the distributor climbing system of FIG. 1 taken along line II. FIG. FIG. 3 is an enlarged view of a portion (guide roller) surrounded by broken line A in FIG. 2 and a cross-sectional view taken along line II-II. FIG. 2 is a schematic side view of a distributor that constitutes the distributor climbing system; FIG. 4 is a schematic side view of an upper frame and a lower frame that make up the distributor climbing system; FIG. 2 is a schematic side view of a climbing device that constitutes the distributor climbing system; 4 is a flow chart showing the operation of the climbing device; FIG. 4 is an explanatory diagram of the operation of the climbing device; 4 is a flow chart of a building construction procedure using the distributor climbing system. It is explanatory drawing of the construction|assembly procedure of a building (the state which constructed|assembled the 1st construction floor). It is explanatory drawing (2, the state which pulled up the upper frame) of the construction|assembly procedure of a building. It is explanatory drawing (3, the state which pulled up the lower frame) of the construction|assembly procedure of a building. It is explanatory drawing (4, the state which raised the distributor) of the construction procedure of a building. FIG. 8 is a plan view and a III-III cross-sectional view of a guide roller according to a modification of the invention;

The present invention is a distributor climbing system that raises a distributor having concrete pipes along a building frame under construction, and a method of constructing a structure using this distributor climbing system.
An embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 is a schematic side view of a distributor climbing system 1 according to one embodiment of the invention. FIG. 2 is a cross-sectional view of the distributor climbing system 1 of FIG. 1 taken along line II. FIG. 3(a) is an enlarged view of a portion (guide roller 50) surrounded by a dashed line A in FIG. FIG. 3(b) is a II-II cross-sectional view of the guide roller 50 of FIG. 3(a).
The floor slab of a building skeleton 2 as a structure under construction is provided with floor openings (bad holes) 3 that are continuous in the vertical direction.
The distributor climbing system 1 is installed vertically through a continuous floor opening 3 in a building frame 2 to raise a concrete pipe 15 along the building frame 2 . This distributor climbing system 1 includes: a distributor 10 provided with a concrete pipe 15; an upper frame 20 constructed around the distributor 10 and vertically movable relative to the distributor 10; a lower frame 30 constructed surrounding the upper frame 20 and relatively movable vertically with respect to the upper frame 20;

FIG. 4 is a schematic side view of the distributor 10. FIG. FIG. 5(a) is a schematic side view of the upper frame 20. FIG. FIG. 5B is a schematic side view of the lower frame 30. FIG.
The distributor 10 includes a column 11 having a rectangular horizontal cross section, a collapsible boom 12 provided at the upper end of the column 11, a telescopic base 14 provided at the lower end of the column 11 and capable of projecting and retracting a locking part 13 sideways, and a concrete pipe 15 extending from the lower end to the upper end of the distributor 10 along the side surface of the distributor 10 and further extending along the boom 12 to the tip of the boom 12. Four locking portions 13 are provided on the extensible base 14 , and by locking to the floor slab around the floor opening 3 of the building frame 2 , the distributor 10 can be temporarily fixed to the building frame 2 .

As shown in FIG. 2, the upper frame 20 includes four vertical members 21 that extend vertically along the corners of the rectangular distributor 10, a horizontal member 22 that connects the vertical members 21, and a locking mechanism 24 that is provided at the upper ends of the vertical members 21 and capable of projecting and retracting the locking portions 23 sideways. Four locking portions 23 are provided in the locking mechanism 24 , and can temporarily fix the upper frame 20 to the building frame 2 by locking to the floor slab around the floor opening 3 of the building frame 2 .
The horizontal member 22 is made of H-shaped steel, and the upper surface of the horizontal member 22 is provided with a guide roller 50 that runs vertically along the side surface of the support column 11 of the distributor 10 (see FIG. 2). As shown in FIGS. 3A and 3B, the guide roller 50 includes a roller 51, a roller support portion 52 that supports the roller 51 with the horizontal direction as the rotation axis _R1 , a base portion 53 that is attached to the upper surface of the horizontal member 22 and on which the roller support portion 52 is placed, and an adjustment bolt 54 that is screwed into the base portion 53 and adjusts the protrusion dimension of the roller 51. In this guide roller 50, the projection dimension d of the roller 51 from the horizontal member 22 can be adjusted by rotating the adjustment bolt 54. As shown in FIG.

As shown in FIG. 2, the lower frame 30 includes four vertical members 31 extending vertically along the corners of the upper frame 20, a horizontal member 32 connecting the vertical members 31, and a locking mechanism 34 provided at an intermediate height between the vertical members 31 and capable of projecting and retracting the locking portions 33 sideways. Four locking portions 33 are provided in the locking mechanism 34 , and by locking to the floor slab around the floor opening 3 of the building frame 2 , the lower frame 30 can be temporarily fixed to the building frame 2 .
The horizontal member 32 is made of H-shaped steel, and the upper surface of the horizontal member 32 is provided with a guide roller 50 that runs vertically along the side surface of the vertical member 21 of the upper frame 20 . The guide roller 50 provided on the horizontal member 32 has the same configuration as the guide roller 50 provided on the horizontal member 22, and by rotating the adjustment bolt 54, the protrusion dimension d of the guide roller 50 from the horizontal member 32 can be adjusted.

FIG. 6 is a schematic side view of the climbing device 40. FIG.
A guide rail 17 in which guide holes 16 are formed at predetermined intervals in the vertical direction is provided on the side surface of the post 11 of the distributor 10 .
The climbing device 40 includes a lower unit 42 provided with a reaction claw 41 that engages with the horizontal member 22 of the upper frame 20, an upper unit 43, a jack 44 that moves the upper unit 43 up and down with respect to the lower unit 42, a lower claw 45 that is provided on the lower unit 42 and can be engaged with the guide hole 16 by rotating about the rotation axis _R2 , and an upper claw 46 that is provided on the upper unit 43 and can be engaged with the guide hole 16 by rotating about the rotation axis _R3 . Prepare.

FIG. 7 is a flow chart showing the operation of the climbing device 40. As shown in FIG.
In the initial state, the lower claw 45 and the upper claw 46 of the climbing device 40 are engaged with the guide hole 16 as shown in FIG. 8(a).
From this state, in step S1, the jack 44 is driven to raise the upper unit 43 as shown in FIG. 8(b). At this time, the locking of the lower claw 45 with respect to the guide hole 16 is released, but since the upper claw 46 is locked with the guide hole 16, the post 11 rises. As a result, as shown in FIG. 8(c), the lower claw 45 is engaged with the guide hole 16 one level below.
In step S2, the jack 44 is driven to lower the upper unit 43, as shown in FIG. 8(d). At this time, the locking of the upper claw 46 with respect to the guide hole 16 is released, but since the lower claw 45 is locked with the guide hole 16 , the post 11 is temporarily supported by the climbing device 40 . As a result, as shown in FIG. 8A, the lower claw 45 and the upper claw 46 are engaged with the guide hole 16 again.
In step S3, step S1 and step S2 are alternately repeated.

FIG. 9 is a flow chart showing a building construction procedure using the distributor climbing system 1. As shown in FIG.
In step S11, as shown in FIG. 1, the lower part up to the (n+2) (n is a natural number) floor of the building skeleton 2 is constructed, and the floor opening 3 is provided in the floor slab of each floor.
In step S12, as shown in FIG. 1, a lifting device such as a crane is used to install the distributor climbing system 1 through the floor opening 3 vertically. At this time, the engaging portion 23 of the upper frame 20 is engaged with the floor of the (n+2) floor, the engaging portion 33 of the lower frame 30 is engaged with the floor of the (n+1) floor, and the engaging portion 13 of the distributor 10 is engaged with the floor of the n floor.
In step S13, as shown in FIG. 10, concrete is placed on the top floor (construction floor) using the concrete piping 15 of the distributor 10, and the (n+3) floor is constructed as a building frame on the lower part of the building frame 2.
In step S14, as shown in FIG. 10, the engaging portion 23 of the upper frame 20 is retracted. Specifically, the chain block 60 is attached between the distributor 10 and the upper frame 20, tension is introduced into the chain block 60 for temporary support, and in this state, the locking portion 23 of the upper frame 20 is stored.
In step S15, as shown in FIG. 11, the chain block 60 is driven to pull up the upper frame 20 and the climbing device 40 by one layer. After that, the tension introduced in the chain block 60 is released.
In step S16, as shown in FIG. 11, the locking portion 23 of the upper frame 20 is pulled out and locked to the floor of the (n+3)th floor.

In step S17, as shown in FIG. 11, the engaging portion 33 of the lower frame 30 is retracted. Specifically, the chain block 61 is attached between the upper frame 20 and the lower frame 30, tension is introduced into the chain block 61 for temporary support, and in this state, the locking portion 33 of the lower frame 30 is accommodated.
In step S18, as shown in FIG. 12, the chain block 61 is driven to pull up the lower frame 30 by one layer.
In step S19, as shown in FIG. 12, the locking portion 33 of the lower frame 30 is pulled out and locked to the floor of the (n+2)th floor. After that, the tension introduced into the chain block 61 is released.
In step S20, as shown in FIG. 12, the engaging portion 13 of the distributor 10 is retracted. Specifically, the distributor 10 is temporarily supported by the climbing device 40, and the locking portion 13 of the distributor 10 is accommodated in this state.
In step S21, as shown in FIG. 13, the climbing device 40 is driven to raise the distributor 10 by one layer.
In step S22, as shown in FIG. 13, the locking portion 13 of the distributor 10 is pulled out and locked to the floor of the (n+1)th floor.
At step S22, steps S13 to S21 are repeated.

According to this embodiment, there are the following effects.
(1) An upper frame 20 and a lower frame 30 are provided to surround the distributor 10 provided with the concrete pipe 15, and locking portions 13, 23, and 33 that can project and retract sideways are provided on the distributor 10, the upper frame 20, and the lower frame 30, so that the locking portions 13, 23, and 33 of the distributor 10, the upper frame 20, and the lower frame 30 can be locked to the floor of each floor.
Therefore, the steps of lifting the upper frame 20 upward by the chain block 60 and climbing it and then locking it on the floor of the upper floor by the locking portion 23 of the upper frame 20, lifting the lower frame 30 upward by the chain block 61 for climbing and locking it on the floor of the upper floor by the locking portion 33 of the lower frame 30, and then climbing the distributor 10 by the climbing device 40 and locking it on the floor of the upper floor by the locking portion 13 of the distributor 10 are sequentially repeated. , the distributor 10 provided with the concrete pipe 15 can be climbed while maintaining stability.
In other words, when climbing the distributor 10 having the concrete pipe 15, two of the locking portions 13, 23, 33 of the distributor 10, the upper frame 20, and the lower frame 30 are always locked to the floor of each floor, so the distributor 10 can be climbed while maintaining stability.

(2) When the distributor 10 is to be climbed, the jack 44 is used to raise the upper unit 43 so that the lower claw 45 is not locked in the guide hole 16, but the upper claw 46 is locked in the guide hole 16, and the distributor 10 rises. and the second step of being temporarily supported by the mining device 40 are alternately repeated. As a result, the distributor 10 provided with the concrete pipe 15 can be easily and reliably raised. Further, in the distributor climbing system 1, the distributor 10 can be moved upward by the climbing device 40 provided on the upper frame 20 without using a new lifting device.
(3) Since the guide rollers 50 are provided on the upper surfaces of the horizontal members 22 and 32 of the H-shaped steel of the upper frame 20 and the lower frame 30, access to the guide rollers 50 is facilitated, and maintenance of the guide rollers 50 and adjustment of the projection dimension d of the rollers 51 are easy.

It should be noted that the present invention is not limited to the above-described embodiments, and includes modifications, improvements, etc. within the scope of achieving the object of the present invention.
For example, in the above-described embodiment, the guide rollers 50 are provided on the upper surfaces of the horizontal members 22 and 32, which are H-shaped steels of the upper frame 20 and the lower frame 30. However, the guide rollers 50A may be provided inside the horizontal members 22 and 32. 14(a) and 14(b), the guide roller 50A includes a roller 51, a roller support portion 52 that supports the roller 51 with the horizontal direction as the rotation axis _R1 , a base portion 53 that is attached inside the horizontal members 22 and 32 and on which the roller support portion 52 is placed, and an adjustment bolt 54 that is screwed into the webs of the horizontal members 22 and 32 and adjusts the projection dimension of the roller 51. In this guide roller 50A, the projection dimension d of the roller 51 from the horizontal members 22 and 32 can be adjusted by rotating the adjustment bolt 54. As shown in FIG. According to this guide roller 50A, since the reaction force from the column 11 and the vertical member 21 acts near the central axis of the horizontal members 22, 32, the horizontal members 22, 32 can be prevented from generating a rotational moment.

1... Distributor climbing system 2... Building frame (structure)
DESCRIPTION OF SYMBOLS 3... Floor opening 10... Distributor 11... Support 12... Boom 13... Locking part 14... Telescopic base 15... Concrete piping 16... Guide hole 17... Guide rail 20... Upper frame 21... Vertical member 22... Horizontal member 23... Locking part 24... Locking mechanism 30... Lower frame 31... Vertical member 32... Horizontal member 33... Locking part 34... Locking mechanism 40... Climbing device 41... Reaction claw 42... Lower unit 43... Upper unit 44... Jack 45... Lower claw 46... Upper claw 50, 50A... Guide roller 51... Roller 52... Roller support part 53... Base part 54... Adjustment bolt 60, 61... Chain block

Claims (3)

A distributor climbing system for raising a distributor having concrete piping along a building frame under construction,
a distributor provided with concrete piping;
an upper frame that surrounds the distributor and is vertically movable relative to the distributor;
a lower frame that surrounds the upper frame and is vertically movable relative to the upper frame;
a climbing device provided on the upper frame and capable of pushing the distributor upward;
A distributor climbing system, wherein the lower end of the distributor, the upper frame, and the lower frame are provided with engaging portions that can project and retract sideways. A side surface of the distributor is provided with a guide rail extending vertically and provided with guide holes at predetermined intervals,
The climbing device includes a lower unit provided with reaction claws that engage with the upper frame;
upper unit and
a jack for raising and lowering the upper unit with respect to the lower unit;
a lower claw that is provided on the lower unit and can be engaged with the guide hole by rotating;
2. The distributor climbing system according to claim 1, further comprising an upper claw that is provided on the upper unit and can be engaged with the guide hole by rotating. A method of constructing a structure using the distributor climbing system according to claim 1 or 2,
a first step of constructing a lower part of the structure and providing floor openings that are continuous vertically in the floor slabs of each floor of the lower part;
a second step of disposing the distributor climbing system vertically through the floor opening using a lifting device, pulling out the locking part of the distributor to lock it on the floor of the n (n is a natural number) floor, pulling out the locking part of the lower frame to lock it on the floor of the (n+1)th floor, pulling out the locking part of the upper frame to lock it on the floor of the (n+2)th floor;
a third step of placing concrete using the concrete piping and constructing a skeleton on the lower part of the structure;
a fourth step of storing the engaging portion of the upper frame, pulling up the upper frame by one layer with a chain block, pulling out the engaging portion of the upper frame, and engaging the floor of the (n+3)th floor;
a fifth step of storing the engaging portion of the lower frame, pulling up the lower frame by one layer with a chain block, pulling out the engaging portion of the lower frame, and engaging the floor of the (n+2)th floor;
a sixth step of storing the engaging portion of the distributor, pulling up the distributor by one floor with the climbing device, pulling out the engaging portion of the distributor, and engaging the floor of the (n+1)th floor;
and a seventh step of repeating the third to sixth steps.

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