JPH0559822A - Method of constructing building - Google Patents

Abstract

PURPOSE:To carry out a work after a steelwork is built with no affection by a weather without greatly increasing the construction cost. CONSTITUTION:During construction of a steelwork structure building, a water- proof sheet 2A is laid so that an upper part of a steelwork structure 1 which has been beforehand constructed is covered with the sheet 2A, and is secured thereto. Air-bags 2B are inflated so as to locally lift up the water-proof sheet 2A. Accordingly, a rain tight cover 2 having a water grade is formed. In such a condition that the cover 2 is laid, working steps at least up to application of a roof in a process of constructing a steelwork structure building are carried out, and then the cover 2 is withdrawn.

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 steel frame building (S structure), a steel frame reinforced concrete structure (SRC structure), or a reinforced concrete structure (RC structure).

[0002]

2. Description of the Related Art In the process of building a roof in construction of a building, if it rains, workability and safety are deteriorated, and the work is generally interrupted. This not only leads to an unreasonable lengthening of the work period and makes it difficult to set the schedule, but it also compels the work conditions on Sundays and holidays to deteriorate the working conditions. Therefore, in the past, in a steel-framed building, focusing on the fact that the steel erection to the uppermost floor is performed in the early stage of construction, the slab (roof) on the uppermost floor is manufactured first after the steel frame erection. There is known a construction technique that makes it possible to perform the subsequent work regardless of the weather by making the rain cover.

[0003]

However, with the above construction technique, it is not possible to target steel-framed reinforced concrete structures and reinforced concrete-made buildings. In the construction of manufacturing the top slab, the slab is manufactured in order from the bottom and finally the slab of the top floor is manufactured. Since there is no slab on the lower floor available, it is difficult to take safety measures against a fall accident, and it is necessary to lift a large amount of necessary slab manufacturing material from the ground every time it is needed. Prevents deformation of the steel structure in place of the slab of the lower floor by making the slab in a state where the deformation of the steel structure is not prevented by the slab of the lower floor It is necessary to separately provide the reinforcement that.
Therefore, according to the conventional technique, it takes time and cost to manufacture the uppermost slab, that is, the rain cover, and this causes a large increase in cost. The object of the present invention can be applied to the construction of buildings of various structures, and most of the construction work, especially in steel-framed buildings, depends on the weather without affecting the construction cost. The point is to provide a construction method that can be carried out without using it.

[0004]

The first feature of the method for constructing a building according to the present invention is to install a scaffold on the outer periphery of the planned construction site and to install the waterproof sheet in a state of covering the upper part of the planned construction site. By fixing it to the scaffold and inflating the airbag to locally lift the waterproof sheet,
Create and install a rain cover with a water gradient, and the rain cover (2)
With the construction of the building installed, the rain cover is moved upward every time the height of the building increases due to the construction, and the rain cover is removed after the roof of the building is constructed. ..

The second feature of the method of constructing a building according to the present invention is that the scaffold is installed around the planned construction site, and the waterproof sheet covers the upper part of the planned construction site at a position higher than the planned construction site. By fixing the above to the scaffolding, inflating the air bag and locally lifting the waterproof sheet, a rain cover with a water gradient is prepared and installed, and at least the roof construction of the building construction with the rain cover installed. Until the rain cover is removed.

The third feature of the method for constructing a building according to the present invention is that after the steel frame is erected in the construction process of the steel frame building,
A waterproof cover is laid and fixed so as to cover the upper part of the steel frame structure, and the airbag is inflated to locally lift the waterproof sheet to create and install a rain cover having a water gradient, and the rain cover is installed. In the construction of the steel frame building, at least the construction of the roof is performed, and then the rain cover is removed.

[0007]

[Operation] According to the first and second characteristics, the construction up to the roof in the construction of the building, and according to the third characteristic targeting the steel frame building, the construction up to the roof after the steel frame construction Most of the can be done with a rain cover. And
A rain cover for making work independent of the weather is made and installed as a temporary structure by laying a waterproof sheet and inflating an airbag. The waterproof sheet and the airbag are lightweight and foldable. By doing so, it is possible to make it compact and compact form, so that the lifting of the waterproof sheet and the airbag when making the rain cover and the removal after use are between the ground and the high position. However, it can be performed easily and quickly with a small number of times, and since it is a temporary structure, the waterproof sheet and the air bag can be diverted to another steel frame building.
According to the first and second characteristics, since the rain cover is fixed to the scaffolding, it can be carried out regardless of the structure of the building. According to the first feature, the rain cover can always be positioned immediately above the work site and superior in rain cover performance in any of the construction of the lower layer to the construction of the upper layer.
According to the second and third characteristics, the rain cover can be installed only once. According to the third feature, while the steel frame structure is strong and the rain cover is lightweight, there is no need to reinforce the steel frame structure when providing the rain cover, and a manufacturing form of the slab after the steel frame is erected. As for, it is possible to adopt an ordinary general form which is manufactured in order from the bottom.

[0008]

Therefore, according to the present invention, the number of steps and costs required for producing the rain cover can be reduced, and the cost reduction of the waterproof sheet and the air bag due to the conversion can be achieved. Most of the construction of various buildings can be performed without being affected by the weather without inviting, and the working conditions in terms of schedule can be significantly improved. Instead, the work after constructing the steel frame can be performed without being affected by the weather, and the work conditions in terms of schedule can be greatly improved.

[0009]

【Example】

[Example 1] Taking a steel frame building as an example, it is constructed according to the procedure described below. [1] As shown in FIG. 1, after the steel frame is erected, the steel frame structure 1
The rain cover 2 having a water gradient is prepared and installed on the upper part of the. As shown in FIG. 2, in the rain cover 2, deck plates 3 are laid side by side between the uppermost beams of the steel structure 1, and the deck plates 3 are used as a working floor to cover the upper portions of the deck plates 3 in a slack waterproof sheet. 2A is laid and the periphery of the waterproof sheet 2A is fixed to the steel frame structure 1,
Manufactured as a temporary roof of a ridge type by inflating a tubular air bag 2B located between the waterproof sheet 2A and the deck plate 3 and lifting the central portion of the waterproof sheet 2A so as to stretch the waterproof sheet 2A. It was done. The fixing means around the waterproof sheet 2A is a means that uses a fastener for attaching the curtain wall mounted on the steel frame structure 1 as a fastening portion. Reference numeral 4 is an air compressor for inflating the air bag 2B. [2] As shown in FIG. 3, with the rain cover 2 installed, construction of a steel-framed building, that is, at least construction of the roof (roof slab) 5 in construction after steel frame construction is performed.
The construction after constructing the steel frame is an ordinary general construction consisting of slab construction for making the slab 6 on each floor, exterior construction, interior construction, etc. The slab construction is construction in order from the slab 6 on each floor. .. [3] After that, the rain cover 2 is removed, and if construction remains, it will be constructed. According to the above construction method, the work after the steel frame construction can be performed without being affected by the weather. [Example 2] In constructing a building made of steel-framed reinforced concrete or reinforced concrete, as shown in Fig. 4A, a scaffold 7 having a height corresponding to the height of the building to be built is provided around the building to be built. Is installed, a work beam 8 is installed between the upper ends of the scaffold 7, and the waterproof sheet 2A is provided so as to cover the upper part of the building construction planned location and the work beam.
The air bag 2B interposed between the waterproof sheet 2A and the working beam 8 is inflated and the central portion of the waterproof sheet 2A is lifted so as to stretch the waterproof sheet 2A. Similarly, a rain cover 2 as a temporary roof having a water gradient is prepared and installed, and as shown in (b) of FIG. 4, at least the roof (roof slab) 5 of the construction of the building is installed with the rain cover 2 installed. After the construction, the rain cover 2 is removed, and if construction remains, it is constructed. [Example 3] For constructing a steel frame reinforced concrete structure or a reinforced concrete structure, as shown in Fig. 5 (a), a scaffold 7 is installed on the outer periphery of a planned construction site, and a work beam is provided on the scaffold 7. 8, a waterproof sheet 2A is fixed to the scaffold 7 in a state of covering the upper part of the building construction planned portion and the working beam, and an air bag 2B interposed between the waterproof sheet 2A and the working beam 8. As shown in (b), the rain cover 2 as a temporary roof having a water gradient is prepared and installed by lifting the central portion of the waterproof sheet 2A so that the waterproof sheet 2A is inflated and the waterproof sheet 2A is stretched. As described above, the construction of the building is performed with the rain cover 2 installed, and the rain cover 2 is moved upward every time the height of the building increases due to the construction, as shown in (a).
After performing the construction of the roof 5 of the building, the rain cover 2 is removed, and if construction remains, the construction is performed. As shown in FIG. 5, the scaffold 7 may be initially constructed to have a height corresponding to the height of the building to be constructed.
As shown in, each time the rain cover 2 is moved, the rain cover 2 may be added upward. Further, as means for moving the rain cover 2 upward, when the scaffold 7 is first constructed with a height corresponding to the height of the building to be constructed, as shown in FIG. 5, the scaffold 7 is attached to the scaffold 7. The working beam 8 is configured to be movable up and down by using the rail 9 as a guide.
The rain cover 2 may be moved by the rise of the. in this case,
The waterproof sheet 2A is fixed to the scaffold 7 not through the work beams 8 but directly.

[Other Embodiments] [1] In the above Embodiments 1, 2 and 3, the air bag 2B is used.
Although a tube-shaped one is shown as the air bag 2B
May be scattered in the direction behind the ridge of the rain cover 2A, as shown in FIG. In short, the air bag 2
The shape and arrangement of B can be changed appropriately. [2] In the above embodiment, the waterproof sheet 2A and the air bag 2B are separate bodies that can be handled independently, but they may be integrated. [3] In Example 1 above, the waterproof sheet 2A was fixed to the upper portion of the steel frame structure 1, but as shown in FIG. 8, the waterproof sheet 2A has an extension 2a that hangs down to the side of the steel frame structure 1.
May be provided, and the lower end of the extension portion 2a is fixed to the side surface of the steel frame structure 1, so that all or part of the side surface of the steel frame structure 1 may be covered with the waterproof sheet 2A. [4] Although the waterproof sheet 2A is fixed to the steel frame structure 1 in the first embodiment, it may be fixed to the scaffold 7 provided outside the steel frame structure 1 as shown in FIG. in this case,
Although it may be directly fixed to the scaffold 7 as shown in (a), it may be connected to the upper portion of the curing sheet 10 provided along the outer surface of the scaffold 7 as shown in (b). In the latter case, the curing sheet 10 can be stretched at the same time by stretching the waterproof sheet 2A by inflating the airbag 2B with the lower end of the curing sheet 10 fixed to the scaffold 7. Of course, the curing sheet 10 and the waterproof sheet 2A are
It may be connectable and separable with fasteners, etc.,
It may be one piece. That is, the waterproof sheet 2A may also serve as the curing sheet 10. [5] Although the above-described embodiment has shown the basics, as shown in FIG. 10, when the crane 11 is installed on the steel frame structure 1, the waterproof sheet 2A is provided with a hole through which the pillar 11A of the crane 11 is inserted. The rain is kept between the peripheral portion of the hole and the support 11A. Further, in the case of carrying a material such as a material into the steel frame structure 1 from above, as shown in FIG. 11, the waterproof sheet 2A is provided with a cargo handling opening 2b. [6] In the above-mentioned embodiment, the upper portion is covered with one waterproof sheet 2A made of one sheet or one sheet material which is joined together. However, the waterproof sheet 2A has a plurality of sheet materials such as fasteners. It may be detachably connected. [7] A steel frame building is used in the second and third embodiments.

It should be noted that although reference numerals are given in the claims for convenience of comparison with the drawings, the present invention is not limited to the configuration of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a schematic front view showing a rain cover construction state of Example 1.

FIG. 2 is a plan view showing a rain cover construction state of the first embodiment.

FIG. 3 is a schematic front view showing a construction state after constructing a steel frame of Example 1.

FIG. 4 is a schematic front view showing a construction state of the second embodiment.

FIG. 5 is a schematic front view showing a construction state of the third embodiment.

FIG. 6 is a schematic front view showing a construction state of the third embodiment.

FIG. 7 is a plan view showing another embodiment.

FIG. 8 is a schematic front view showing another embodiment.

FIG. 9 is a schematic front view showing another embodiment.

FIG. 10 is a schematic front view showing another embodiment.

FIG. 11 is a schematic front view showing another embodiment.

[Explanation of symbols]

 1 Steel structure 2A Tarpaulin 2B Air bag 2 Rain cover 5 Roof 7 Scaffold

Claims (3)

[Claims] 1. A scaffold (7) is installed on the outer periphery of a planned construction site, and a waterproof sheet (2A) is fixed to the scaffold (7) so as to cover the upper part of the planned construction site,
Waterproof sheet (2A) by inflating the air bag (2B)
The rain cover (2) having a water gradient is produced and installed by locally lifting the building, and the building is constructed with the rain cover (2) installed, and the height of the building increases with the construction. A construction method for a building, in which the rain cover (2) is moved upward for each time, the roof (5) of the building is constructed, and then the rain cover (2) is removed. 2. A scaffold (7) is installed on the outer periphery of a planned construction site, and a tarpaulin (2A) is provided so as to cover the upper part of the planned construction site at a position higher than the planned construction site. The rain cover (2) having a water gradient is prepared and installed by fixing the same to the above and inflating the air bag (2B) and locally lifting the waterproof sheet (2A), and with the rain cover (2) installed. A method of constructing a building in which at least the roof (5) is constructed and then the rain cover (2) is removed. 3. After erection of the steel frame in the process of constructing a steel frame building, a waterproof sheet (2A) is laid and fixed so as to cover the upper part of the steel frame structure (1), and an air bag (2B) is attached. By inflating and locally lifting the waterproof sheet (2A), a rain cover (2) having a water gradient is prepared and installed. With the rain cover (2) installed, at least the roof (5) in the construction of the steel frame building is installed. ) Is performed, and then the rain cover (2) is removed.