JP2642323B2 - Concrete casting method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of placing concrete in a construction of a building, and more particularly, to a method of mounting a concrete on a ceiling of a previously constructed upper floor part as the floor is raised. The present invention relates to a method of placing concrete, in which concrete is poured over a wide area from a ceiling to construct a lower-floor skeleton, integrally with a bridged construction device.

[0002]

2. Description of the Related Art Conventionally, when constructing a building, there is the following method in the work of placing concrete reinforced with steel frames or reinforcing bars. (A) A concrete pumping pipe is disposed horizontally on a slab mainly on a concrete placing floor, and a concrete hose is connected to a rubber hose at a tip thereof, and concrete is pumped to the pumping pipe via a concrete pump. ,
A method in which a worker places concrete while moving while holding the rubber hose at the tip.

(B) A concrete pumping pipe is connected to a multi-jointed bending horizontal arm fixed to a pillar on a casting floor, and a hose is connected to the pipe. A method in which concrete is pumped from a concrete pump and concrete is poured into a predetermined area while bending a joint of a horizontal arm by an operator.

(C) A straight pipe and a hose are alternately connected to a tire wheel truck traveling on the floor on the floor of the casting floor, and a concrete distributing apparatus using a traveling distributor equipped with a hose rotating at the tip is used. The concrete is pumped from the concrete pumping pump to the above-mentioned device, and the tire wheels are driven to move forward, backward, and change direction, and concrete is poured into a predetermined range while turning the tip hose. Method. And so on.

[0005]

The above-mentioned conventional concrete placing methods have the following problems. That is, (a)
The method is generally performed, but the pipe is laid in the area where the concrete is to be cast, and the pipe is connected or cut off every time the casting place is moved. Is forced to work hard in concrete casting work, and when pumping concrete, the pulsation of the pipe is transmitted to the concrete casting surface, which has an adverse effect on the formwork and cast concrete.

Also, in the method (b), since the concrete placing device is installed on the concrete placing floor, removal, transportation and work of the device are complicated each time concrete is placed. Furthermore, in the method (c), since the traveling type distributor is provided, the arrangement of the concrete pumping pipe is omitted, and the worker is released from heavy labor such as moving.
As in the case of (b), it is necessary to change the installation every time the concrete is poured on the casting floor, and the work of removing, transporting, installing, etc. becomes complicated.

[0007] Further, in recent years, construction methods for all-weather buildings have been proposed, but no concrete proposal has been made for concrete placement methods at present. The present invention has been proposed in view of the problems of the prior art described above, and its object is to improve workability, improve the work environment, and cast concrete without impairing the quality of concrete. It is an object of the present invention to provide a concrete casting method suitable for a construction method of an all-weather building.

[0008]

In order to achieve the above-mentioned object, a concrete casting method according to the present invention is characterized in that a lower-floor skeleton is provided below the upper-floor skeleton which has been constructed in advance. In the method of constructing a building to be constructed, a concrete placing device suspended on a suspension crane that travels on a traveling rail disposed on a ceiling of a building that rises and descends, and is guided by a guide rail disposed on a ceiling. In a concrete pouring mechanism comprising: a bendable tube that can be bent, a concrete supply tube composed of a vertical tube and a horizontal tube for supplying concrete, and a counterweight device disposed on a ceiling portion that assists movement of the bent tube. Moving the concrete placing device suspended by the suspension crane to a preset concrete placing section; The step of connecting concrete with a concrete supply pipe, the step of supplying concrete to the concrete placing device, and the step of placing concrete in the concrete placing area are for placing concrete in the placing section. .

According to the second aspect of the present invention, in the concrete placing step of the placing section, the concrete placing device suspended by the suspension crane is moved forward in the main girder direction of the suspension crane. Stopping in the supply range, moving the suspension type crane forward, and moving the concrete placing device backward in the main girder direction of the suspension type crane to place concrete into one cycle to place concrete in a desired range. Things.

According to the third aspect of the present invention, a concrete placing device is provided in which a traveling rail disposed on a ceiling of the ascending and descending frame has a plurality of lanes, and a suspension type crane is suspended from the lanes to travel. Is transferred to another parallel lane, and while running in parallel with the suspension crane at the original position, the concrete is supplied from the concrete supply device and the above-described one cycle of the casting process is repeated to cast concrete in a desired range. Is what you do.

[0011]

According to the present invention, as described above, the suspension type crane is hung freely on the traveling rail mounted on the ceiling, and the concrete placing device is guided by the guide rail disposed on the ceiling and bent. A step of moving the concrete casting device suspended by the suspension crane to a free concrete pipe and a concrete supply pipe consisting of a concrete supply vertical pipe and a horizontal pipe, and to a preset concrete placement section; A step of connecting the bendable refraction tube and the concrete supply pipe, a step of supplying concrete to the concrete placing device, and a step of placing concrete in a concrete placing area. Concrete suspended in the concrete placement section where the suspension crane Since the casting equipment was moved and the concrete in the same casting area was cast, the concrete casting equipment was installed irrespective of the concrete casting face, and the concrete casting face was completely removed. Because there is nothing to vibrate and concrete will be poured,
The quality of the cast concrete is guaranteed. In addition, since the counterweight device for assisting the movement of the refraction pipe of the concrete supply pipe is disposed on the ceiling, the movement of the concrete supply pipe is performed smoothly.

According to the second aspect of the present invention, a concrete placing device suspended by a suspension crane moves forward in a main girder direction of a suspension crane, stops the concrete placing device in a concrete supply range, and runs a traveling rail. Moving the suspension type crane suspended in the direction of the main girder of the suspension type crane by forwardly moving the concrete placing device.
As a cycle, concrete can be cast in a desired range in the cycle.

According to the third aspect of the present invention, the traveling lane disposed on the ceiling of the ascending and descending frame on the top floor has a plurality of lanes, and a suspension type crane is hung on the lanes to cast concrete. Transfer the equipment to the suspended suspension crane in another lane in parallel with the equipment, receive the supply of concrete from the concrete supply device while moving in parallel with the suspension type crane at the original position, repeat the process of the one cycle, and concrete to the desired range. Can be cast.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiments. S ₁ is the floor on the top floor, S ₂ is the floor on the lower floor, and the concrete placing mechanism is a suspension type crane 2 moving along a traveling rail 1 provided on the ceiling, and a concrete suspended on the crane. It comprises a casting device 3, a concrete supply device 4 for supplying concrete to the lower floor, and a counterweight device 5 disposed above the top floor portion.

The concrete supply device 4 is provided with a vertical pipe 6 disposed at an appropriate position and a refraction pipe 8 described later, which is disposed on a floor S ₁ on the uppermost floor and bends and expands at a branch pipe 701. A concrete supply pipe by a horizontal pipe 7 connected at 702, a refractible refraction pipe 8 guided by a guide rail 801 provided on the ceiling and connected to the refraction pipe 8 via a connection pipe 702; An extensible flexible hose 10 mounted on a cable carrier 9 suspended on the running rail 1 is detachably connected to the hose 10, and the hose 10 is introduced and piped into the concrete casting device 3, and the tip is cast. It is connected to the mouth 11.

The refraction tube 8 is suspended from a traveling platform 802 mounted on a guide rail 801 provided on the ceiling. The counterweight device 5 is placed on the top floor.
And a plurality of winches 501, upper sheaves 502, and lower sheaves 503 are provided. A counterweight 504 is hung on the lower sheave 503, a wire 505 is extended from the winch 501, and a traveling platform 802 that travels on the guide rail 801 is provided. And the tip is fixed to the building frame N. In the figure, K is a control operation device.

The suspension type crane 2 travels in each lane of a plurality of traveling rails 1 provided on the ceiling,
The concrete placing device 3 is moved by transferring to each of the lanes L ₁ , L ₂ , L ₃ , and the suspension type crane 2 traveling in the traveling lane is moved in the Y direction. And moves in the X direction. (Refer to FIG. 7) Next, the concrete placing method will be described. For the basic operation, a program is started by the control operation device K as shown in FIG. 1, and the operation of each device is commanded. The suspension type crane 2 moves in the Y direction and stops at the first concrete placing position, and the concrete placing device 3 moves in the X direction and moves to the first concrete placing position. The operation is started, concrete is poured into a predetermined concrete placing area, and then the concrete is moved to the next section.

As shown in the flow of concrete placing shown in FIG. 8 and the process charts shown in FIGS. 1, 2 and 3, the concrete placing in the first section is a bending tube 8 which can be bent freely.
And a horizontal pipe 7 for supplying concrete are branched from a branch pipe 701 and connected via a connecting pipe 702, and the concrete placing device 3 and the bending pipe 8 are connected via a flexible hose 10 (see FIG. 1). The refraction tube 8 is extended and moved to the casting start position, and concrete is supplied to the concrete casting device 3 (see FIG. 2) to cast concrete H in the concrete casting area. (See FIG. 3) Next, in the concrete casting in the second section, the connecting pipe 70 is connected to the bending pipe 8 and the bending pipe 8 for supplying concrete.
Then, the bending pipe 8 is moved to the second casting section and into the concrete casting section by the concrete casting device 3 and connected to the connecting pipe 702a at the tip (see FIG. 4).
Is extended to the casting start position, and concrete is supplied to the concrete casting device 3 (see FIG. 5), and the concrete H _{1 is} placed in the concrete casting area of the second casting section.
Is installed. (Refer to FIG. 6) The above steps are repeated, and concrete is poured over the entire floor.

The counterweight device 5 includes the refraction tube 8
When the device 3 moves forward while the concrete is poured and the concrete placing device 3 is placed, the wire 505 extending from the counterweight device 5 is connected to the sheave interposed in the bending portion 803 of the bending tube 8. The tension is applied to the wire 505 by being wound and the load of the counterweight 504, the suspended bending portion 803 is pushed upward, and the concrete driving device 3 suspended by the suspension crane 2 is driven. Power is reduced.

FIG. 8 is a flowchart of a concrete placing method, and FIG. 9 is a flowchart of a concrete placing step by a basic operation of the concrete placing method. 10 (a) and (b) can be considered as the pattern of the placing process in the placing section.
According to the casting pattern shown in FIG. 10A, the concrete placing device suspended on the suspension crane 2 is advanced in the main girder direction x of the suspension crane and stopped in the concrete supply range as shown in FIG. The process of moving the concrete placing device in the main beam direction x of the suspension crane as shown in the figure is performed as one cycle by moving in the direction of arrow y as shown in FIG. .

In the concrete casting pattern shown in FIG. 10 (b), a traveling rail disposed on the ceiling of a building frame that moves up and down has a plurality of lanes L ₁ and L ₂ , and a suspension crane 2 is mounted on lane L _1. through the concrete supply device and ERROR supplied with concrete other suspension type crane lane L ₂ for parallel concreting device travels is suspended from the suspension crane original position, concrete supply range As shown in the figure, the suspension type crane 2 and the suspension type crane 2a move in parallel while moving forward as shown by the arrow x, and as shown in the figure, the concrete placing device is driven backward in the main girder direction x of the suspension crane. Is performed as one cycle, and concrete is cast in a desired work area in the cycle. It is intended to pouring the entire work area of the concrete by repeating the degree.

FIG. 10 (b) shows a case where a driving section is set across the other traveling lane with the pillar P interposed therebetween. In FIG. 10 (a), the same parts as those in FIG. .

[0023]

According to the concrete placing method of the present invention, a concrete placing device in which a suspension type crane is movably mounted on a traveling rail provided on a ceiling of a skeleton, and a concrete placing device disposed on the ceiling. The concrete placing device is composed of a bending tube that can be bent and guided by the guide rail, a concrete supply tube, and a counterweight device on the ceiling that assists the movement of the bending tube. Move in one direction along the way and stop at the first concrete placing position.The concrete placing device moves in the other direction perpendicular to the same direction and moves to the first concrete placing position. By placing concrete in the building, the construction of concrete supply pipes,
By joining or detaching, eliminating movement, and placing concrete at any place on the plane to be poured, it frees workers from heavy labor, improves the work environment, and improves the quality of cast concrete. The workability can be improved by programming concrete casting.

According to the second aspect of the present invention, the concrete placing device suspended from the suspension type crane is driven while moving forward in the main girder direction of the crane, stops in the concrete supply range, and moves the crane forward. The step of placing concrete while moving the concrete placing apparatus backward in the main girder direction of the crane is one cycle, and the casting pattern for placing the concrete in a desired range in the cycle is adopted. In the building of the above, the suspension type crane goes straight and the concrete placing device suspended by the crane moves back and forth to place concrete, and thus the concrete placing section is divided into linear sections, Installation and connection of supply pipes,
Separation, movement, and the like become unnecessary, and workers are released from heavy labor, workability is improved, and work efficiency is improved.

According to a third aspect of the present invention, the traveling rail disposed on the ceiling of the skeleton has a plurality of lanes, and a suspension type crane is suspended on the same lane to another lane in which the concrete placing device is parallel. Transfer to the suspended suspension crane, move forward along with the suspension crane at the original position, receiving concrete supply from the concrete supply device, and move the concrete placing device backward in the main girder direction of the suspension crane In the casting pattern in which a desired section is cast in concrete in the above cycle with the step of casting as one cycle, it is suitable for the construction of a building having a standard span, and other traveling lanes are sandwiched between pillars. Can be set over the area.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a state at the time of startup in a concrete casting method according to the present invention and showing a state where a flexible hose is connected to a bending tube.

FIG. 2 is a longitudinal sectional view showing the next step of FIG. 1 and showing a state in which the bending tube has been moved to a concrete casting position.

FIG. 3 is a longitudinal sectional view showing a concrete casting state in a first casting section.

FIG. 4 is a longitudinal sectional view showing the next step of FIG. 3 and showing a state where the concrete placing device has been moved to a second placing section and connected to a connecting pipe.

FIG. 5 is a longitudinal sectional view showing the next step of FIG. 4 and showing a state where the concrete placing apparatus has been moved to a casting start position.

FIG. 6 is a longitudinal sectional view showing a concrete casting state in a second casting section.

FIG. 7 is a plan view showing an arrangement of a concrete placing device.

FIG. 8 shows a flowchart of a basic operation of the concrete placing method.

FIG. 9 is a flowchart of a placing process based on a basic operation of the concrete placing method.

10 (a) and 10 (b) are plan views showing a casting pattern by a concrete casting method.

[Explanation of symbols]

S ₁ Top floor S ₂ Lower floor H Concrete K Control operation device N Frame 1 Running rail 2 Suspension crane 3 Concrete placing device 4 Concrete supply device 5 Counterweight device 501 Winch 502 Upper sheave 503 Lower sheave 504 Counter Weight 505 Wire 6 Vertical pipe 7 Horizontal pipe 701 Branch pipe 702 Connection pipe 8 Refraction pipe 801 Guide rail 802 Traveling stand 803 Refraction section 9 Cable carrier 10 Flexible hose 11 Driving port

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Takashi Arai 4-6-115 Sendagaya, Shibuya-ku, Tokyo Fujita Inside Co., Ltd. (72) Masao Kato 4-6-115 Sendagaya, Shibuya-ku, Tokyo Co., Ltd. Inside Fujita (72) Inventor Ryoji Yoshitake 4-6-115 Sendagaya, Shibuya-ku, Tokyo Inside Fujita Corporation (72) Inventor Kazuo Iizuka 2-6.5, Minamisuna, Koto-ku, Tokyo Kawasaki Heavy Industries, Ltd. (72) Inventor Kiyofumi Hasegawa 2-6-5 Minamisuna, Koto-ku, Tokyo Kawasaki Heavy Industries, Ltd. Tokyo Design Office (56) References JP-A-4-203067 (JP, A) JP-A-5-7748 (JP) , U)

Claims (3)

(57) [Claims] 1. A traveling rail disposed on a ceiling of a rising / falling frame in a method of constructing a building in which a lower frame is constructed below a top frame constructed in advance as the top frame is raised. A concrete placing device suspended on a suspension type crane running on the ground, a refracting tube guided by guide rails arranged on the ceiling and refractible, and a concrete supply tube comprising a vertical tube and a horizontal tube for supplying concrete. ,
In a concrete placing mechanism comprising a counterweight device disposed on a ceiling portion to assist the movement of the bending tube, a concrete placing device suspended by the suspension crane to a preset concrete placing section. Moving, connecting the flexible bendable tube and the concrete supply tube, supplying concrete to the concrete placing device, and placing concrete in a concrete placing area, A concrete placing method, which comprises placing concrete in a placing section. 2. The concrete placing step in the placing section comprises: moving a concrete placing device suspended by a suspension crane in a main girder direction of the suspension crane to stop in a concrete supply range; The process in which the suspension type crane suspended by the traveling crane is moved forward, and then the concrete setting device is moved backward in the main girder direction of the suspension type crane and then the concrete is set, is defined as one cycle. 2. The concrete casting method according to claim 1, wherein concrete is poured into the concrete. 3. A traveling rail disposed on a ceiling of the ascending and descending skeleton has a plurality of lanes, and a suspension type crane is suspended from the lanes to run a concrete placing device traveling in another lane. The concrete according to claim 1, wherein the concrete is supplied from the concrete supply device while the vehicle is transferred, and runs alongside the suspension type crane at the original position, and the one-cycle casting step is repeated to cast concrete in a desired range. Casting method.