Distributor climbing system and method for constructing a structure

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

Technical Field

[0001] The present invention relates to a distributor climbing system for raising a distributor having concrete pipes along a building frame under construction, and a method for constructing a structure using this distributor climbing system.

Background Art

[0002] Conventionally, when placing the frame concrete of a high-rise building, a distributor may be used (see Patent Document 1). A distributor is a concrete pipe that extends vertically and is temporarily supported by the frame of a building under construction. When placing the concrete on the top floor (construction floor) of a building under construction, a concrete pumping truck is connected to the lower end of the distributor, and a hose is attached to the upper end of the distributor. In this state, when concrete is pumped from the concrete pumping truck, the concrete is discharged from the tip of the hose through the distributor.

[0003] Patent Document 1 shows a concrete distributor including a detachable base frame for 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 an anti-friction rubber hose extending along the telescopic four-stage boom on the hose reel. A concrete supply hose extending along the side surface of the high-rise structure is connected to the hose reel of this concrete distributor. Patent Document 2 shows a distributor including a first concrete pipe connected to a concrete supply device disposed on the ground and extending vertically along a formwork, and a second concrete pipe connected to the first concrete pipe.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

[0005] An object of the present invention is to provide a distributor climbing system that can climb while maintaining stability for a distributor provided with concrete pipes, and a method for constructing a structure using this distributor climbing system. [Means for Solving the Problems]

[0006] The inventors of the present invention focused on a system for climbing a distributor having concrete pipes. When climbing the distributor, an upper frame and a lower frame are provided surrounding a support column supporting the distributor, and a climbing device is provided on the upper frame. A plurality of locking portions (corresponding to braces) attached to the lower end portion of the distributor, the upper frame, and the lower frame are locked to the floor for temporary fixing, enabling the distributor to climb while maintaining stability, thus arriving at the present invention. The first invention's distributor climbing system (for example, the distributor climbing system 1 described later) is a distributor climbing system that raises a distributor (for example, the distributor 10 described later) having a concrete pipe (for example, the concrete pipe 15 described later) along a building structure under construction (for example, the building structure 2 described later). The system includes a distributor provided with a concrete pipe, an upper frame (for example, the upper frame 20 described later) constructed to surround the distributor and capable of moving vertically relative to the distributor, a lower frame (for example, the lower frame 30 described later) constructed to surround the upper frame and capable of moving vertically relative to the upper frame, and a climbing device (for example, the climbing device 40 described later) provided on the upper frame and capable of pushing the distributor upward. Locking portions (for example, the locking portions 13, 23, 33 described later) that can project and retract laterally are provided at the lower end of the distributor, the upper frame, and the lower frame.

[0007] Conventionally, it has been difficult to stably maintain the posture of a climbing-type distributor rising along a building structure during climbing. Therefore, according to this invention, an upper frame and a lower frame are provided surrounding a distributor provided with a concrete pipe, and locking portions that can project and retract laterally are provided on the distributor, the upper frame, and the lower frame, so that the respective locking portions of the distributor, the upper frame, and the lower frame can be locked to the floor of each floor. Therefore, after lifting the upper frame upward with a chain block or the like and climbing it, a step of locking it to the floor on the upper floor with the locking portion of the upper frame, after lifting the lower frame upward with a chain block or the like and climbing it, a step of locking it to the floor on the upper floor with the locking portion of the lower frame, and after climbing the distributor with a climbing device, a step of locking it to the floor on the upper floor with the locking portion of the distributor are repeatedly performed in order, so that the distributor provided with the concrete pipe can be climbed while maintaining stability.

[0008] In the distributor climbing system of the second invention (for example, the distributor climbing system 1 described later), on the side surface of the distributor, a guide rail (for example, the guide rail 17 described later) is provided with guide holes (for example, the guide holes 16 described later) extending vertically and provided at predetermined intervals. The climbing device includes a lower unit (for example, the lower unit 42 described later) provided with a reaction claw (for example, the reaction claw 41 described later) that locks to the upper frame, an upper unit (for example, the upper unit 43 described later), a jack (for example, the jack 44 described later) that raises and lowers the upper unit with respect to the lower unit, a lower claw (for example, the lower claw 45 described later) provided on the lower unit and rotatable to lock to the guide hole, and an upper claw (for example, the upper claw 46 described later) provided on the upper unit and rotatable to lock to the guide hole.

[0009] According to this invention, when climbing the distributor, in the first step of raising the upper unit with the jack, the lower claw is not locked to the guide hole, but the upper claw is locked to the guide hole and the distributor rises. In the second step, when lowering the upper unit with the jack, the locking of the upper claw to the guide hole is released, but the lower claw is locked to the guide hole and the distributor is temporarily supported by the climbing device. These steps are alternately repeated. Thereby, the distributor provided with the concrete pipe can be easily and surely raised.

[0010] The construction method of the structure of the third invention is a method of constructing a structure using the above-described distributor climbing system, comprising: a first step (for example, step S11 described later) of constructing the lower part of the structure and providing floor openings (for example, floor opening 3 described later) that are vertically continuous in the floor slabs of each floor of the lower part; a second step (for example, step S12 described later) of arranging the distributor climbing system through the floor openings vertically using a hoisting device, pulling out the locking part of the distributor and locking it to the floor of the nth (n is a natural number) floor, pulling out the locking part of the lower frame and locking it to the floor of the (n + 1)th floor, and pulling out the locking part of the upper frame and locking it to the floor of the (n + 2)th floor; a third step (for example, step S13 described later) of placing concrete using the concrete pipe and constructing a building body on the lower part of the structure; a fourth step (for example, steps S14 to S16 described later) of storing the locking part of the upper frame, pulling up the upper frame by one floor using a chain block, pulling out the locking part of the upper frame, and locking it to the floor of the (n + 3)th floor; a fifth step (for example, steps S17 to S19 described later) of storing the locking part of the lower frame, pulling up the lower frame by one floor using a chain block, pulling out the locking part of the lower frame, and locking it to the floor of the (n + 2)th floor; a sixth step (for example, steps S20 to S22 described later) of storing the locking part of the distributor, pulling up the distributor by one floor using the climbing device, pulling out the locking part of the distributor, and locking it to the floor of the (n + 1)th floor; and a seventh step (for example, step S23 described later) of repeating the third step to the sixth step.

[0011] According to the present invention, after lifting the upper frame upward with a chain block or the like and climbing it, a step of locking it to the floor of the upper floor with the locking portion of the upper frame, after lifting the lower frame upward with a chain block or the like and climbing it, a step of locking it to the floor of the upper floor with the locking portion of the lower frame, and after climbing the distributor with a climbing device, a step of locking it to the floor of the upper floor with the locking portion of the distributor are repeatedly performed in order, so that the distributor provided with the concrete pipe can be climbed while maintaining stability.

Effect of the Invention

[0012] According to the present invention, it is possible to provide a distributor climbing system capable of climbing while maintaining stability for a distributor provided with a concrete pipe, and a method for constructing a structure using this distributor climbing system.

Brief Description of the Drawings

[0013]

Figure 1

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Mode for Carrying Out the Invention

[0014] The present invention relates to a distributor climbing system for raising a distributor having a concrete pipe along the building frame under construction, and a method for constructing a structure using this distributor climbing system. Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic side view of a distributor climbing system 1 according to an embodiment of the present invention. FIG. 2 is a cross-sectional view taken along line I-I of the distributor climbing system 1 in FIG. 1. FIG. 3(a) is an enlarged view of the portion (guide roller 50) surrounded by the broken line A in FIG. 2. FIG. 3(b) is a cross-sectional view taken along line II-II of the guide roller 50 in FIG. 3(a). In the floor slab of the building frame 2 as a structure under construction, vertically continuous floor openings (defective holes) 3 are provided. The distributor climbing system 1 is installed so as to vertically penetrate the floor openings 3 that are continuous above and below the building structure 2, and raises the concrete pipe 15 along the building structure 2. This distributor climbing system 1 includes a distributor 10 provided with a concrete pipe 15, an upper frame 20 constructed to surround the distributor 10 and capable of vertically moving relative to the distributor 10, a lower frame 30 constructed to surround the upper frame 20 and capable of vertically moving relative to the upper frame 20, and a climbing device 40 provided on the upper frame 20 and capable of pushing the distributor 10 upward.

[0015] FIG. 4 is a schematic side view of the distributor 10. FIG. 5(a) is a schematic side view of the upper frame 20. FIG. 5(b) is a schematic side view of the lower frame 30. The distributor 10 includes a column 11 having a rectangular horizontal cross section, a foldable 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 portion 13 laterally, 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 to the tip of the boom 12 along the boom 12. Four locking portions 13 are provided on the telescopic base 14, and by locking to the floor slab around the floor opening 3 of the building structure 2, the distributor 10 can be temporarily fixed to the building structure 2.

[0016] As also shown in FIG. 2, the upper frame 20 includes four vertical members 21 extending vertically along the corners of the rectangular distributor 10, horizontal members 22 connecting these vertical members 21, and a locking mechanism 24 provided at the upper ends of the vertical members 21 and capable of projecting and retracting a locking portion 23 laterally. Four locking portions 23 are provided on the locking mechanism 24, and by locking to the floor slab around the floor opening 3 of the building structure 2, the upper frame 20 can be temporarily fixed to the building structure 2. The horizontal member 22 is an H-shaped steel, and guide rollers 50 that travel up and down along the side surface of the column 11 of the distributor 10 are provided on the upper surface of the horizontal member 22 (see FIG. 2). As shown in FIGS. 3(a) and 3(b), 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 to adjust the protruding dimension of the roller 51. In this guide roller 50, the protruding dimension d of the roller 51 from the horizontal member 22 can be adjusted by rotating the adjustment bolt 54.

[0017] As also shown in FIG. 2, the lower frame 30 includes four vertical members 31 that extend vertically along the corners of the upper frame 20, a horizontal member 32 that connects these vertical members 31 to each other, and a locking mechanism 34 that is provided at an intermediate height of the vertical members 31 and can project and retract a locking portion 33 laterally. 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 body 2, the lower frame 30 can be temporarily fixed to the building body 2. The horizontal member 32 is an H-shaped steel, and guide rollers 50 that travel up and down along the side surface of the vertical member 21 of the upper frame 20 are provided on the upper surface of the horizontal member 32. 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 the protruding dimension d of the guide roller 50 from the horizontal member 32 can be adjusted by rotating the adjustment bolt 54.

[0018] FIG. 6 is a schematic side view of the climbing device 40. On the side surface of the column 11 of the distributor 10, a guide rail 17 with guide holes 16 formed at predetermined intervals in the vertical direction is provided. The climbing device 40 includes a lower unit 42 provided with a reaction force claw 41 that locks to the horizontal member 22 of the upper frame 20, an upper unit 43, a jack 44 that raises and lowers the upper unit 43 with respect to the lower unit 42, a lower claw 45 provided on the lower unit 42 and rotatable about a rotation axis R2 so as to be lockable to the guide hole 16, and an upper claw 46 provided on the upper unit 43 and rotatable about a rotation axis R3 so as to be lockable to the guide hole 16.

[0019] FIG. 7 is a flowchart showing the operation of the climbing device 40. In the initial state, as shown in FIG. 8(a), the lower claw 45 and the upper claw 46 of the climbing device 40 are locked to the guide hole 16. From this state, in step S1, as shown in FIG. 8(b), the jack 44 is driven to raise the upper unit 43. At this time, the locking of the lower claw 45 to the guide hole 16 is released, but since the upper claw 46 is locked to the guide hole 16, the support column 11 rises. As a result, as shown in FIG. 8(c), the lower claw 45 locks to the guide hole 16 one level below. In step S2, as shown in FIG. 8(d), the jack 44 is driven to lower the upper unit 43. At this time, the locking of the upper claw 46 to the guide hole 16 is released, but since the lower claw 45 is locked to the guide hole 16, the support column 11 is temporarily supported by the climbing device 40. As a result, as shown in FIG. 8(a), again, the lower claw 45 and the upper claw 46 are locked to the guide hole 16. In step S3, steps S1 and S2 are alternately repeated.

[0020] FIG. 9 is a flowchart showing the building construction procedure using the distributor climbing system 1. In step S11, as shown in FIG. 1, the lower part of the building body 2 up to the (n + 2)th floor (n is a natural number) is constructed, and a floor opening 3 is provided in the floor slab of each floor. In step S12, as shown in FIG. 1, using a hoisting device such as a crane, the distributor climbing system 1 is installed through the floor opening 3 vertically. At this time, the locking portion 23 of the upper frame 20 is locked to the floor of the (n + 2)th floor, the locking portion 33 of the lower frame 30 is locked to the floor of the (n + 1)th floor, and the locking portion 13 of the distributor 10 is locked to the floor of the nth floor. In step S13, as shown in FIG. 10, using the concrete pipe 15 of the distributor 10, the concrete is placed on the top floor (construction floor), and the (n + 3)th floor as the building structure is constructed on the lower part of the building structure 2. In step S14, as shown in FIG. 10, the locking portion 23 of the upper frame 20 is stored. Specifically, a 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 upward by one floor. Then, the tension introduced into 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.

[0021] In step S17, as shown in FIG. 11, the locking portion 33 of the lower frame 30 is stored. Specifically, a 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 stored. In step S18, as shown in FIG. 12, the chain block 61 is driven to pull up the lower frame 30 upward by one floor. 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. Then, the tension introduced into the chain block 61 is released. In step S20, as shown in FIG. 12, the locking portion 13 of the distributor 10 is stored. Specifically, the distributor 10 is temporarily supported by the climbing device 40, and in this state, the locking portion 13 of the distributor 10 is stored. 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. In step S22, steps S13 to S21 are repeated.

[0022] According to the present embodiment, there are the following effects. (1) The upper frame 20 and the lower frame 30 are provided surrounding the distributor 10 provided with the concrete pipe 15, and locking portions 13, 23, and 33 that can project and retract laterally are provided on the distributor 10, the upper frame 20, and the lower frame 30, respectively, so that the respective 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, after the upper frame 20 is pulled up upward by the chain block 60 and climbed, the step of locking the upper frame 20 to the floor of the upper floor with the locking portion 23, after the lower frame 30 is pulled up upward by the chain block 61 and climbed, the step of locking the lower frame 30 to the floor of the upper floor with the locking portion 33, after the distributor 10 is climbed by the climbing device 40, the step of locking the distributor 10 to the floor of the upper floor with the locking portion 13 of the distributor 10 are repeated in order, so that 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, since two of the locking portions 13, 23, and 33 of the distributor 10, the upper frame 20, and the lower frame 30 are always locked to the floor of each floor, the distributor 10 can be climbed while maintaining stability.

[0023] (2) When climbing the distributor 10, by raising the upper unit 43 with the jack 44, the lower claw 45 is not locked to the guide hole 16, but the upper claw 46 is locked to the guide hole 16, and the distributor 10 rises in the first step. Then, by lowering the upper unit 43 with the jack 44, the locking of the upper claw 46 to the guide hole 16 is released, but the lower claw 45 is locked to the guide hole 16 and the distributor 10 is temporarily supported by the climbing device 40 in the second step. These steps are alternately repeated. As a result, the distributor 10 provided with the concrete pipe 15 can be easily and surely raised. Further, in the distributor climbing system 1, the climbing device 40 provided on the upper frame 20 can move the distributor 10 upward without using a new hoisting device. (3) Since the guide rollers 50 are provided on the upper surfaces of the horizontal members 22, 32 which are H-shaped steels of the upper frame 20 and the lower frame 30, access to the guide rollers 50 becomes easy, and maintenance of the guide rollers 50 and adjustment of the protruding dimension d of the rollers 51 are easy.

[0024] Note that the present invention is not limited to the above-described embodiment, and modifications, improvements, etc. within the range that can achieve the object of the present invention are included in 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 present invention is not limited to this, and the guide rollers 50A may be provided inside the horizontal members 22 and 32. As shown in FIGS. 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 to adjust the protruding dimension of the roller 51. In this guide roller 50A, by rotating the adjustment bolt 54, the protruding dimension d of the roller 51 from the horizontal members 22 and 32 can be adjusted. According to this guide roller 50A, since the reaction forces from the support columns 11 and the vertical members 21 act near the central axis of the horizontal members 22 and 32, it is possible to suppress the generation of a rotational moment in the horizontal members 22 and 32.

Description of Reference Numerals

[0025] 1…Distributor climbing system 2…Building body (structure) 3…Floor opening 10…Distributor 11…Support column 12…Boom 13…Locking portion 14…Telescopic base 15…Concrete pipe 16…Guide hole 17…Guide rail 20…Upper frame 21…Vertical member 22…Horizontal member 23…Locking portion 24…Locking mechanism 30…Lower frame 31…Vertical member 32…Horizontal member 33…Locking portion 34…Locking mechanism 40…Climbing device 41…Reaction force claw 42…Lower unit 43…Upper unit 44…Jack 45…Lower claw 46…Upper claw 50, 50A…Guide roller 51…Roller 52…Roller support portion 53…Base portion 54…Adjustment bolt 60, 61…Chain block

Claims

A distributor climbing system for raising a distributor having a concrete pipe along a building frame under construction, comprising: a distributor provided with a concrete pipe; an upper frame constructed to surround the distributor and capable of moving vertically relative to the distributor; a lower frame constructed to surround the upper frame and capable of moving vertically relative to the upper frame; a climbing device provided on the upper frame and capable of pushing up the distributor upward; and locking portions provided at the lower end of the distributor, the upper frame, and the lower frame, and capable of protruding and retracting laterally; a guide rail provided on the side surface of the distributor, extending vertically and provided with guide holes at predetermined intervals; the climbing device includes a lower unit provided with a reaction claw that locks to the upper frame; an upper unit; a jack for raising and lowering the upper unit relative to the lower unit; a lower claw provided on the lower unit and capable of locking to the guide hole by rotating; an upper claw provided on the upper unit and capable of locking to the guide hole by rotating; and a distributor climbing system characterized by comprising the same. A method for constructing a structure using a distributor climbing system, comprising: the distributor climbing system includes: a distributor provided with a concrete pipe; an upper frame constructed to surround the distributor and capable of moving vertically relative to the distributor; a lower frame constructed to surround the upper frame and capable of moving vertically relative to the upper frame; a climbing device provided on the upper frame and capable of pushing up the distributor upward; and locking portions provided at the lower end of the distributor, the upper frame, and the lower frame, and capable of protruding and retracting laterally; a first step of constructing a lower layer of the structure and providing floor openings that are continuous vertically in the floor slabs of each floor of the lower layer; Using a hoisting device, arrange the distributor climbing system through the floor opening vertically, pull out the locking part of the distributor and lock it to the floor of the nth (n is a natural number) floor, pull out the locking part of the lower frame and lock it to the floor of the (n + 1)th floor, and pull out the locking part of the upper frame and lock it to the floor of the (n + 2)th floor in the second step; Perform concrete placement using the concrete pipe and construct a structure on the lower part of the structure in the third step; Store the locking part of the upper frame, pull up the upper frame by one floor with a chain block, pull out the locking part of the upper frame, and lock it to the floor of the (n + 3)th floor in the fourth step; Store the locking part of the lower frame, pull up the lower frame by one floor with a chain block, pull out the locking part of the lower frame, and lock it to the floor of the (n + 2)th floor in the fifth step; Store the locking part of the distributor, pull up the distributor by one floor with the climbing device, pull out the locking part of the distributor, and lock it to the floor of the (n + 1)th floor in the sixth step; A construction method of a structure comprising a seventh step of repeating the third step to the sixth step.

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