JP3036370B2 - Yoke moving mechanism and method for slip form device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a yoke moving mechanism and method for a slip-form apparatus, and more particularly to a tower having a complicated horizontal cross-sectional shape and a circumferential length that varies in the height direction. The present invention relates to a yoke moving mechanism and method for a slip forming apparatus.

[0002]

2. Description of the Related Art In a slip form method, opposed form panels are supported by a gate-shaped frame called a yoke, and concrete is poured into the form panels while the yoke is continuously raised by a hydraulic jack or the like. By doing so, it is a construction method that can construct a tower-shaped RC structure in a short time.

[0003] Conventionally, many structures constructed by the slip-form construction method have a circular horizontal cross section, but recently, with emphasis on scenery and design, they have a complex shape different from a circle. In addition, there has been an increasing need to construct a structure whose perimeter changes in the height direction.

Here, even in the conventional method, a large number of yokes arranged along the designed wall position are individually moved horizontally so as to cope with a change in the circumferential length along the height direction. However, the above-mentioned needs can be met to some extent.

[0005]

However, when the yoke is arranged in accordance with a complicated cross-sectional shape, the direction in which the yoke should be moved does not always coincide with the direction of the upper beam provided above the yoke. When the yoke is moved in such a state, the movement of the yoke becomes unstable, and it becomes difficult to form a wall cross section as designed.

The change in span between the yokes due to the movement of the yokes in the horizontal plane is usually absorbed by a span adjustment panel interposed between the form panels. However, since each yoke moves individually, many changes occur. Has to be arranged, and as a result, there is a problem that many steps are formed on the outer peripheral surface of the tower-like structure.

The present invention has been made in consideration of the above-described circumstances, and allows each yoke to be formed with a predetermined accuracy and easily even when the design cross-sectional shape is complicated and the circumferential length changes in the height direction. It is an object of the present invention to provide a yoke guide mechanism of a slip-form device that can move horizontally in a horizontal direction and can reduce the number of locations where a span is adjusted between yokes.

[0008]

In order to achieve the above object, a yoke moving mechanism for a slip-form apparatus according to the present invention has a predetermined number of yokes arranged along a designed wall position as described in claim 1. Then, the yokes are connected to each other in a range in which the curvature of the designed wall does not substantially change along the height direction and so that the span between the yokes does not change to form a yoke connector. Each of the yoke connectors is configured to be horizontally movable by a predetermined moving mechanism, and the moving mechanism is provided between the yoke connector and an upper beam mounted thereon via a roller. The upper beam is used as a reaction force to horizontally move the yoke connector.

Further, according to a second aspect of the present invention, a predetermined number of yokes arranged along a designed wall position have a high curvature of the designed wall. A moving step of horizontally moving the yoke connectors, which are connected to each other in a range that does not substantially change along the vertical direction, and a removing step of removing a yoke that hinders the horizontal movement of the yoke connectors. .

[0010]

According to the yoke moving mechanism and method of the slip foam apparatus of the present invention, the yokes belonging to the range in which the curvature of the designed wall does not substantially change along the height direction are individually moved. Rather, they are moved horizontally by moving the yoke connector, which connects them to each other, so as to correspond to a change in the perimeter and a change in the shape of the tower-like structure.

Here, the change in span between yokes does not occur between yokes belonging to the same yoke connector.

During the movement of the predetermined yoke connector, if it becomes immovable due to interference with another yoke connector or a single yoke not belonging to the yoke connector, one of the yoke connectors is disassembled. Then, the yoke causing the interference is removed from the group of yokes that do not belong to the yoke connector, and the horizontal movement of the yoke connector is continued.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a yoke moving mechanism and method of a slip foaming apparatus according to the present invention will be described below with reference to the accompanying drawings. Before describing the yoke moving mechanism and method of the present embodiment, first, a slip foam device 1 including the yoke moving mechanism will be described.

As shown in FIG. 1 (a), the slip-form apparatus 1 supports a gate-shaped frame 3 called a yoke by a wall of a tower-like structure 2 already constructed. A space truss 5 called an upper beam is mounted.

In such a slip-form apparatus 1, concrete is poured between opposing form panels 4 attached to a yoke 3 to construct a wall of the tower-like structure 2, while simultaneously removing the already constructed wall. By raising the entire apparatus with a hydraulic jack as a reaction force and sliding the form panel 4 upward with respect to the wall, the wall can be constructed continuously.

As shown in FIG. 1 (b), the tower-like structure 2 is not a generally seen cylindrical shape, but is 45 °, 135 °,
Convex semi-circular portions in the 25 ° and 315 ° directions (hereinafter referred to as convex portions 15) and concave arc portions in the 0 °, 90 °, 180 ° and 270 ° directions (hereinafter concave portions 1).
6) is a so-called pincushion shape.

Here, the convex portion 15 has a constant curvature and a constant wall length in the height direction, while the concave portion 16 has a constant curvature but the wall length is gradually shortened, and the whole is upward. The perimeter becomes shorter as you go.

As shown in FIG. 2, the yoke moving mechanism 11 according to the present embodiment has a yoke connecting members 13 and 14 and a hydraulic jack 24 as a moving mechanism capable of horizontally moving the yoke connecting members 13 and 14.
(Indicated by black circles).

Since the yoke moving mechanism 11 has a biaxially symmetric structure similarly to the tower-like structure 2, the yoke moving mechanism 11 has a rotation angle of 90 ° to 180 °.
Only a quarter portion sandwiched in the ゜ direction is shown in the drawing, and other portions are omitted.

The yoke connectors 13 and 14 are connected to the tower-like structure 2.
The yoke 3 arranged along the designed wall position of the horizontal truss 12 for each range in which the curvature of the wall does not substantially change along the height direction, that is, for each convex portion 15 and concave portion 16
And are connected to each other.

The hydraulic jack 24 is provided between the yoke connectors 13 and 14 and the upper beam 5 mounted on the yoke connectors 13 and 14 via the rollers 23 as shown in the vertical sectional view of FIG. The hydraulic jack 24 can move the yoke connectors 13 and 14 horizontally with respect to the upper beam 5.

The yoke 3 includes a lifting hydraulic jack 2.
1 is fixed, and the rod 22 buried in the wall of the tower-like structure 2 is used as a reaction force to raise the entire apparatus as described above. The horizontal truss 12 connecting the yokes 3 to each other is formed in the same horizontal plane as the uppermost member of the yoke 3.

As described above, in the tower-like structure 2, the wall length of the concave portion 16 decreases as going upward,
As a result, the overall circumference becomes shorter. Therefore, it is necessary to move each yoke 3 horizontally toward the center of the cross section.

In the yoke moving method of this embodiment, the yokes 3 and 14, which are connected to each other, are moved instead of moving each yoke 3 individually.

FIG. 4 is a flowchart showing a yoke moving method according to this embodiment. FIG. 5 shows the yoke connectors 13 and 14 in the moving process, and FIG. 6 shows the yoke connectors 13 and 14 after the movement.

As can be seen from these figures, in the yoke moving method of the present embodiment, as the slip-form apparatus 1 is raised, the yoke connectors 13 and 14 are respectively moved to the tower as shown by arrows in FIG. The object is horizontally moved toward the center of the structure (step 101).

Here, as can be clearly understood from a comparison of FIG. 5 with FIG. 2, the yoke connector 13 gradually approaches the yoke connector 14, and the opposing yokes 3 eventually interfere with each other. As shown in FIG.
4 is partially disassembled, and the yoke 3 and the horizontal truss 14 on the yoke connector 13 side are removed (step 10).
2).

Such horizontal movement and disassembly are repeated until the change of the circumference of the tower-like structure 2 accompanying the rise of the slip-form apparatus 1 is completed (step 103).

FIG. 6 shows each yoke connector after the horizontal movement is completed. The yoke connector 14 is further disassembled from the state shown in FIG. 3 and the horizontal truss 14 have been removed.

As described above, according to the yoke moving mechanism and method of this embodiment, the curvature does not change in the height direction, instead of moving each yoke individually in order to cope with a change in the circumference. Since the yokes are connected to each other to form a yoke connection body and the yoke connection bodies are moved, the movement of the yokes and the accuracy control of the yokes are compared with the conventional method in which each yoke is individually moved and controlled. It is much easier and the yoke moves more stably.

Also, since the yokes belonging to the same yoke connector are connected to each other by the truss, the span does not change, so that it is not necessary to adjust the span. Therefore, the step on the concrete surface caused by the span adjustment can be significantly reduced.

In this embodiment, a jack as a moving mechanism is provided between the yoke connector and the upper beam, and the yoke connector is horizontally moved using the upper beam as a reaction force. As shown in FIG. 7, another hydraulic jack 31 may be provided, and the yoke connector 13 and the yoke connector 14 may be pulled toward each other at their lower ends by the hydraulic jack 31.

In such a configuration, the load points for movement are at the upper and lower two places, and stable horizontal movement can be performed.

In this embodiment, the yoke connector 14 is disassembled to remove the yoke belonging thereto.
When the wall length of the concave portion 16 is constant and the wall length of the convex portion 15 is short, the yoke connector 13 may be disassembled.

Further, in this embodiment, all the arranged yokes belong to any one of the yoke connecting bodies. However, when the curvature includes a wall portion which changes along the height direction, such a portion is required. May be individually moved while performing span adjustment as in the related art.

Even in such a case, the above-described effects can be obtained in the range in which the members are moved together via the yoke connector. In such a configuration, interference of the yoke connector may be avoided by removing the single yoke.

[0037]

As described above, the yoke moving mechanism of the slip-form apparatus of the present invention arranges a predetermined number of yokes along the designed wall position, and adjusts the yoke to the curvature of the designed wall. Are connected to each other so as not to cause a change in the span between the yokes in a range that does not substantially change along the height direction to form a yoke connector, and the yoke connectors are respectively moved by a predetermined moving mechanism. It is configured to be horizontally movable, and the moving mechanism is provided between the yoke connector and an upper beam mounted on them via a roller, and the yoke connector is used as a reaction force with the upper beam. Since it is configured to move horizontally, each yoke can be easily and horizontally moved with a predetermined accuracy even when the design cross-sectional shape is complicated and the circumferential length changes in the height direction. Among It is possible to reduce the bread adjustment locations.

Further, in the method of moving the yoke of the slip-form apparatus according to the present invention, the predetermined number of yokes arranged along the designed wall position substantially reduces the designed wall curvature substantially along the height direction. A moving step of horizontally moving the yoke coupling bodies that are connected to each other for each range that does not change; and Since it includes a disassembly step of removing the yoke, even if the design cross-sectional shape is complicated and the circumference changes in the height direction,
Each yoke can be easily and horizontally moved with a predetermined accuracy, and the number of locations for adjusting the span between the yokes can be reduced.

[0039]

[Brief description of the drawings]

FIG. 1 (a) is a slip foam apparatus 1 according to the present embodiment.
FIG. 2B is a vertical sectional view, and FIG. 2B is a horizontal sectional view of a tower-like structure 2 constructed by the slip-form apparatus 1.

FIG. 2 is a plan view of a yoke moving mechanism 11 of the slip foam device according to the embodiment.

FIG. 3 is a vertical detailed sectional view of the yoke moving mechanism 11.

FIG. 4 is a flowchart illustrating a yoke moving method according to the embodiment.

FIG. 5 is a plan view of the yoke moving mechanism when the yoke coupling body is moving.

FIG. 6 is a plan view of the yoke moving mechanism at the stage when the movement of the yoke connector is completed.

FIG. 7 is a plan view according to a modification of the yoke moving mechanism 11.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Slip form apparatus 2 Tower-like structure 3 Yoke 5 Upper beam 11 Yoke moving mechanism 12 Horizontal truss 13, 14 Yoke connection body 24 Hydraulic jack (moving mechanism) 31 Hydraulic jack 101 Moving process 102 Dismantling process

────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Koichi Igarashi 2-chome, Kandajicho, Chiyoda-ku, Tokyo Obayashi Corporation Tokyo Head Office (56) References JP-A-57-112566 (JP, A) (58) ) Surveyed field (Int.Cl. ⁷ , DB name) E04G 11/20

Claims (2)

(57) [Claims] 1. A along the wall position on the design placing a predetermined number of the yoke, and the yoke, each range which does not substantially vary along the curvature height direction of the wall on the design yoke
Coupled to each other such that a change in the span does not occur during forming the yoke connecting member, the yoke connecting member respectively become configured to be horizontally moved at a predetermined moving mechanism, the mobile station
Structure via the yoke connector and rollers on them
The upper beam is installed between the mounted upper beam and the upper beam.
The yoke connector is configured to move horizontally as a force.
Yoke moving mechanism slipform apparatus characterized by the. 2. A method according to claim 1, wherein a predetermined number of yokes are arranged along the design wall position and are connected to each other in a range in which the curvature of the design wall does not substantially change along the height direction. A method for moving a yoke of a slip-form device, comprising: a moving step of horizontally moving a yoke connector; and a removing process of removing a yoke that hinders the horizontal movement of the yoke connector.