JP3044113B2 - Building construction 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 constructing a building made of RC, S or SRC, such as an apartment house or an office building.

[0002]

2. Description of the Related Art In a conventional building construction method, columns, beams,
The building was created by precasting the floor and the floor with beams, bringing them to the site and assembling them.
When concrete is cast in place, the formwork for forming columns, the formwork for forming beams and the formwork for preparing floors can be precast, transported to the site, assembled, and then poured into concrete. Was adopted.

[0003]

However, according to the above-mentioned prior art, even if each structural part and the formwork part are precast, the number of work steps on site is still large,
There was room for improvement in improving workability. An object of the present invention is to improve workability.

[0004]

A feature of the construction method of a building according to the first invention of the present invention is that a building to be constructed is divided into a plurality of structural parts having columns, floors, and beams, and other than the construction site. In advance, and these structural parts are lifted onto the structure by a crane, and are transported and installed to a predetermined building location by a truck traveling on the floor of the previously installed structural part. . It is preferable to use, as the structure part, one having a width and a length corresponding to the span of the adjacent column.

[0005] A feature of a building construction method according to the second invention of the present invention is that a formwork facility for building is provided by a plurality of formwork parts having a column formwork, a floor formwork and a beam formwork. In addition to forming a block at a location other than the installation location, a reinforcing bar is incorporated into the formwork portion, the rebar-incorporated formwork portion is carried into the installation location, and concrete is poured into the interior. And it is preferable to use what has width and length corresponding to the span of the adjacent column as the said formwork part.

[0006]

According to the first aspect of the present invention, a building is created by precasting the three members of the pillar, floor, and beam structures into one block, and carrying it to the construction site on the site and installing it. Work only requires installation work of the blocked structural part, and the number of man-hours on site can be greatly reduced. At the site, the structure part is lifted using a crane on the structure created earlier, and the lifted structure part is transported to a predetermined construction location by a trolley, so that the vertical movement and Since the movement in the plane direction is set to be performed by different means, for example, the structure portion is lifted only by a crane, and the time required for installation is shortened as compared with a method of mounting at a predetermined position. Thus, a structure can be efficiently created.

[0007] In particular, when the structure portion is made to have a width and a length corresponding to the span of the adjacent column, handling of the structure portion such as carrying in is possible in view of size and weight.
The effect of reducing the number of working steps can be sufficiently achieved.

[0008] According to the second invention, a column form section, a floor form section,
The building is made by pre-casting into the formwork of one block with three beam formwork parts, transporting it to the installation site on the site, installing it, and then casting concrete to create a building. Only the installation work of the large formwork part where the formwork was blocked is required, and the number of work steps on site can be greatly reduced.

[0009] In particular, when the formwork portion is made to have a width and a length corresponding to the span of the adjacent column, handling of the formwork portion such as carrying in is possible in view of the size and weight, but the man-hour is reduced. The effect of reduction can be sufficiently achieved.

[0010]

According to the method for constructing a building according to the first and second aspects of the present invention, the number of work steps on site can be significantly reduced and the structure can be significantly reduced by blocking the structure or by arranging the crane and the bogie. The construction efficiency of the body was improved and the construction period of the building was shortened. According to the construction method of a building according to the third and fourth aspects, by precasting the formwork of the pillar, floor, and beam into one block in advance, the number of man-hours at the site is significantly reduced, thereby building the building. The construction period was shortened.

[0011]

Example 1 Example 1 As shown in FIG. 1, a building to be constructed is divided into four pillars 1 and a floor 2.
And a beam 3, while being formed into blocks in a plurality of structural parts A having a width and a length corresponding to the span of the adjacent column 1, and preliminarily prepared at a location other than the planned construction location. The building is constructed by carrying the installed structure part A to the construction site and installing it. The structure part A is on the floor
The beam portion has an overhang that protrudes outward.

An example of the carrying-in installation procedure will be described. As shown in FIG. 2, a plurality of structural parts A are arranged vertically and horizontally in a plan view, and a lower structural body (a basic or underground structural structure in the case of the first floor is prepared). Body, if it is on the second floor or higher, it is connected to the previously created structure), and adjacent objects are connected. Next, as shown in FIG. 3 and FIG.
The structural part A is lifted on the previously created structure using the above-described method, and transported to a predetermined construction site by using the cart 5 traveling on the floor of the previously created structure, and is previously created. It is bonded to the structure, and the previously bonded structure part A is bonded to the adjacent part, if any.

By repeating this operation, a structure composed of a plurality of structure portions A is formed on the lower structure formed earlier. The structure part A on the previously created structure
It is preferable that the lifting point is set to one fixed point because it is not necessary to change the installation point of the crane 4. The location other than the planned construction location includes a creation area installed on the site of the construction site, a specific location on the previously created structure, a factory, and the like. The above operation is repeated to construct a multi-storey building.

According to the first embodiment, the structure portion A
The RC structure can be constructed by making the RC structure, and the SRC structure can be constructed by making the structural part A the SRC structure.
We can build structure building.

In the above embodiment, the structure portion A having four pillars 1 is shown, but the structure portion A has two pillars 1 as shown in FIG. May be. In the above-described embodiment, the structure portion A having the overhang is shown. However, as shown in FIG. 6, the structure portion A may not have the overhang. In this case, if the columns 1 of the adjacent structural body portions A contact each other, they become one column.

[Embodiment 2] As shown in FIG. 7, a formwork facility for building is provided with four column formwork parts 1A, a floor formwork part 1B and a beam formwork part 1C. Pile, floor, and beam are formed into a single structural part by concrete casting. Blocks are formed into a plurality of formwork parts B, and they are pre-set at locations other than the installation locations (creation areas or factories installed on the site of the construction site). Create and formwork part B
Reinforcing bar 6 is incorporated in the
The building is constructed by loading concrete into the installation location and placing concrete inside.

An example of the procedure for carrying in and placing concrete is as follows. A plurality of formwork parts B are vertically and horizontally juxtaposed in plan view.
After connecting the reinforcing bars 6 to the reinforcing bars of the lower structure (a foundation or an underground structure for the first floor or a structure previously prepared for the second floor or higher), the reinforcing bars 6 of adjacent ones are connected to each other. Then, concrete is cast to create a structure in which a plurality of structure parts are combined.

Next, when the concrete of the structure has developed its strength, the formwork portion B is lifted on the previously formed structure by using a crane 4 or the like, and the floor of the previously formed structure is lifted. It is transported to a predetermined installation location using a traveling cart 5 or the like, and the reinforcing bar 6 is connected to the reinforcing bar 6 of the previously created structure. After the reinforcing bar 6 is joined to the reinforcing bar 6 of the frame portion B, concrete is cast, and a plurality of structural portions are joined together, and
Create a structure that is linked to the structure created earlier. It should be noted that it is preferable to set the lifting point of the formwork portion B on the previously created structure at one fixed point because it is not necessary to change the installation point of the crane 4 and the like. . A multi-story building is created by repeating the above operations.

In the above embodiment, the entire structure of one floor is formed by one concrete casting. However, the concrete casting is performed in parallel with the installation of the formwork portion B for one floor. You may go. Also, as the mold part B,
The pillar 1 shown in the first embodiment may be one in which two structural portions A are formed.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is a perspective view of a structure portion showing a first embodiment.

FIG. 2 is a cutaway plan view of a construction process according to the first embodiment.

FIG. 3 is a side view of a construction process showing the first embodiment.

FIG. 4 is a plan view showing a construction process according to the first embodiment.

FIG. 5 is a side view of a construction step showing another embodiment of the first embodiment.

FIG. 6 is a cutaway side view of a construction step showing another embodiment of the first embodiment.

FIG. 7 is a vertical cross-sectional view of a mold portion showing the second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 pillar 2 floor 3 beam 4 crane 5 bogie 6 steel bar 1A pillar formwork 1B floor formwork 1C beam formwork A structure part B formwork part

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-244761 (JP, A) JP-A-3-103546 (JP, A) JP-A-7-166710 (JP, A) Patent 2624479 (JP, A B2) Patent 2810967 (JP, B2) Patent 2727263 (JP, B2) JP-B 52-1205 (JP, B2) JP-B 62-42100 (JP, B2) JP-B 49-38531 (JP, B1) 49-38532 (JP, B1) (58) Fields investigated (Int. Cl. ⁷ , DB name) E04B 1/04 E04B 1/16 E04B 1/20 E04B 1/35 E04G 21/14

Claims (4)

(57) [Claims] 1. A building to be built is divided into a plurality of structural parts (A) having columns (1), floors (2), and beams (3), and created in advance at locations other than the building locations, Lift the structural parts (A) onto the structures by crane (4)
And on the floor of the previously installed structural part (A)
Is transported to a predetermined construction site by a traveling trolley (5).
Construction method of building to be installed. 2. The method according to claim 1, wherein the structural part (A) has a width and a length corresponding to the span of the adjacent pillar (1). 3. A formwork facility for forming a building is connected to a column formwork (1).
A), a plurality of formwork parts (B) each including a floor formwork part (1B) and a beam formwork part (1C) are formed into blocks at positions other than the installation places, and the formwork parts (B) Reinforcement (6) is incorporated in the inside, and the rebar incorporated form part (B)
The construction method of a building where concrete is poured into the installation area after it is brought in. 4. An adjacent pillar (1) as a form part (B ).
The construction method according to claim 3, wherein the building having a width and a length corresponding to the span of the building is used.