JP2001193278A - Construction method for structure having inside space, and climbing scaffolding - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a construction method for a structure having an inside space capable of climbing inside and outside scaffoldings by the common lifting and lowering device of the inside and outside scaffoldings when the structure having the inside space is constructed, decreasing the number of the lifting and lowering devices and reducing a climbing operation time. SOLUTION: The inside scaffolding 1 and the outside scaffolding 2 are provided on a building frame K having the inside space intended to be constructed respectively, mutually connected by a connecting member 2c, a wheel 3 provided on the outside scaffolding 2 is contacted on the outer face of the building frame K, the vertical load of all the scaffoldings 1, 2 is supported by a reaction force receiver 6a provided on the inside face of the building frame K, the lifting and lowering device 5 provided on the inside scaffolding 1 is expanded to climb the outside scaffolding 2 up to a prescribed position, next, the wheel 3 provided on the inside scaffolding 1 is contacted on the inner face of the building frame K, the vertical load of all the scaffoldings 1, 2 is supported by the reaction force receiver 6b provided on the outside face of the building frame K, the lifting and lowering device 5 is contracted to climb the inside scaffolding 1 up to the prescribed position, and the operation is repeated to construct the structure having the inside space.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of constructing a structure having an internal space such as a pier, a chimney, and a core of a building having a center core structure, and a climbing scaffold for carrying out the method.

[0002]

2. Description of the Related Art In order to construct a structure having an internal space such as a pier or a chimney, a slip foam method is often employed (JP-A-6-2429, JP-A-8-232).
469, JP-A-10-54136).

According to the slip form method, an inner scaffold and an outer scaffold are provided on the outside and inside of a concrete wall (frame) of a structure to be constructed, respectively.
Install the inner formwork and the outer formwork using the outer scaffold, arrange rebar between the inner and outer formwork, cast concrete, and when the concrete has solidified, climb the inner and outer scaffolds, A structure having an internal space is constructed by sequentially adding concrete walls.

[0004]

According to the conventional slip-form construction method, since the formwork scaffolds are divided on both the inside and the outside, all the formwork scaffolds are provided with an elevating device. In addition to increasing the cost of the entire apparatus, a large amount of time is required for the climbing operation, which increases the construction cost. The present invention has been made in order to solve the above-mentioned problems of the conventional slip form method, and has a structure having an internal space in which the inside and outside scaffolds can be climbed by a common elevating device for the inside and outside scaffolds. It is an object of the present invention to provide a method of constructing an object and a lifting device for performing the method.

[0005]

According to the construction method of a structure having an internal space according to the present invention, an inner scaffold and an outer scaffold are provided inside and outside a frame having an internal space to be constructed, respectively. The scaffold and the outer scaffold are connected to each other by a connecting member, the contact member provided on the inner scaffold or the outer scaffold is brought into contact with the surface of the skeleton, and the vertical load of the inner scaffold and the outer scaffold is supported by the reaction force receiver provided on the skeleton. In the construction method of a structure using a climbing scaffold, the scaffold is moved to a predetermined position by a lifting device provided on the inner scaffold or the outer scaffold, and then the contact member provided on the inner scaffold or the outer scaffold is brought into contact with the skeleton, By repeating this operation, a structure is constructed between the inner scaffold and the outer scaffold.

Further, according to the climbing scaffold of the present invention,
An inner scaffold and an outer scaffold are respectively provided inside and outside a skeleton having an internal space to be constructed. The inner scaffold and the outer scaffold are connected to each other by a connecting member, and an inner scaffold or an outer scaffold on a side contacting the skeleton. In addition to providing a contact member with the skeleton, a lifting device is provided on the inner scaffold or the outer scaffold, and the lifting device is provided with a member connected to a connecting member that connects the inner member and the outer member to each other. The inner and outer scaffolds are climbed by a common elevating device, so that the number of elevating devices can be reduced and the time of the climbing operation can be shortened.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, an inner scaffold 1 is provided inside a skeleton having an internal space to be constructed, for example, a pier K of a reinforced concrete structure. In FIG. 1, a scaffold 1a for the inside of the left portion of the skeleton K and a scaffold 1b for the inside of the right portion of the skeleton K are connected by a connection beam 1c in FIG. An outer scaffold 2 is provided outside the frame K, and the outer scaffold 2 is a form scaffold like the inner scaffold 1,
In FIG. 1, the outer scaffold 2a on the left side of the frame K and the outer scaffold 2b on the right side of the frame K are connected to each other by a connecting member 2c.
Are connected by

[0008] Wheels 3 are provided on the sides of the inner and outer scaffolds 1 and 2 which are in contact with the frame K. When the scaffolds 1 and 2 climb, the horizontal force applied to the scaffolds 1 and 2 is applied via the wheels 3 to the frame 3. It is designed to be supported by K. Inside and outside scaffolds 1, 2
Is a formwork scaffold, comprising a formwork 4 which is brought into and out of contact with the inner and outer surfaces of the skeleton K by an advance / retreat device (not shown) and arranged between inner and outer formwork. Pour concrete.

The inner scaffold 1 is provided with a climbing jack 5a constituting the lifting device 5, and the climbing rod 5b penetrates the climbing jack 5a, and the tip of the climbing rod 5b is connected to the connecting beam 2c of the outer scaffold 2. Are linked.

When the concrete is hardened on the inner and outer scaffolds 1 and 2 as shown in FIG. 1 and the concrete is hardened, the outer scaffold 2 is climbed as shown in FIG.

At this time, the vertical load of all the scaffolds 1 and 2 is supported by the reaction force receiving bracket 6a provided on the inner surface of the frame K.
Further, the wheel 3 provided on the outer scaffold 2 is brought into contact with the outer surface of the skeleton K, and the horizontal force applied to the outer scaffold 2 is applied via the wheel 3 to the skeleton K.
The climbing jack 5a of the elevating device 5 is operated to extend the climbing rod 5b and raise the outer scaffold 2 to a predetermined position.

Next, as shown in FIG. 3, the vertical load of all the scaffolds 1 and 2 is supported by the reaction force receiving bracket 6b provided on the outer surface of the frame K, and the wheels 3 provided on the inner scaffold 1 are connected to the frame K. The horizontal force acting on the outer scaffold 1 is supported by the skeleton K via the wheels 3 by abutting against the inner surface of the K, and the climbing jack 5a of the lifting / lowering device 5 is operated to contract the climbing rod 5b and to move the inner scaffold 1 to a predetermined position. To the position.

When concrete is poured in the state of FIG. 3 (the same state as in FIG. 1) and the concrete is hardened, the inside and outside scaffolds 1 and 2 are alternately climbed in the above-described manner to construct the skeleton K. .

The cross-sectional shape of the skeleton may be an appropriate shape such as a square or a circle, and may be any skeleton having an internal space.

[0015]

According to the present invention, the inner and outer scaffolds can be climbed by a common elevating device, the number of elevating devices can be reduced, and the time required for the climbing operation can be reduced. The construction cost of a structure having an internal space can be reduced.

[Brief description of the drawings]

FIG. 1 is a side view of a scaffold in a state where concrete has been poured between inner and outer forms after climbing of the inner and outer scaffolds.

FIG. 2 is a side view of the scaffold in a state where the poured concrete has hardened and the outer scaffold has been climbed.

FIG. 3 is a side view of the scaffold with the outer scaffold climbed and then the inner scaffold climbed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Inside scaffold 2 ... Outside scaffold 2c ... Connecting member 3 ... Wheels 4 ... Formwork 5 ... Lifting device 6 ... Reaction force receiving

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Koichi Sakano Kashima Construction Co., Ltd. 1-2-7 Moto Akasaka, Minato-ku, Tokyo (72) Inventor Etsuhiro Ozaki Hiroshi Moto-Akasaka, Minato-ku, Tokyo 2-7-7 Kashima Construction Co., Ltd. (72) Inventor Shigeru Yoshida 1-2-7 Moto-Akasaka, Minato-ku, Tokyo F-term in Kashima Construction Co., Ltd. 2E177 FA05 FB01

Claims (2)

[Claims] 1. An inner scaffold and an outer scaffold are provided inside and outside a skeleton having an internal space to be constructed, respectively.
The inner and outer scaffolds are connected to each other by connecting members, the abutment members provided on the inner or outer scaffolds abut on the skeleton surface, and the vertical load on the inner and outer scaffolds is supported by the reaction force receiver provided on the skeleton. In the construction method of a structure using a climbing scaffold, the scaffold is moved to a predetermined position by an elevating device provided on the inner scaffold or the outer scaffold, and then the contact member provided on the inner scaffold or the outer scaffold is brought into contact with the skeleton. ,
A method for constructing a structure having an internal space, wherein the structure is constructed between the inner scaffold and the outer scaffold by repeating this operation. 2. An inner scaffold and an outer scaffold provided respectively inside and outside a skeleton having an internal space to be constructed, wherein the inner scaffold and the outer scaffold are connected to each other by a connecting member, and A contact member with the skeleton is provided on the inner scaffold or the outer scaffold, an elevating device is provided on the inner scaffold or the outer scaffold, and a member connected to a connecting member for interconnecting the inner member and the outer member is provided on the elevating device. A climbing scaffold characterized by that.