JP2008214932A - Construction method for building - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a building construction method, constructing aerial structures of two or more stages at spaces in the direction of height of a building block between two or more blocks of buildings, and having excellent economic efficiency. <P>SOLUTION: Concurrently with the process of performing skeleton construction for two or more building blocks 1, 1, up to a first construction level H<SB>1</SB>of the aerial structure 10 of the first stage, the principal part 10a of the aerial structure of the first stage is built at the bottom between the building blocks, the principal part 10a is elevated to the construction level H<SB>1</SB>and fixed to the skeleton of the building block. Concurrently with the process of performing skeleton construction up to a second construction level H<SB>2</SB>of the aerial structure 20 of the second stage, the principal part 20a of the aerial structure 20 of the second stage is built on the aerial structure 10 of the first stage, the principal part 20a is elevated up to the second construction level H<SB>2</SB>, and fixed to the skeleton of the building blocks 1, 1. These processes are repeatedly performed according to the number of stages of the aerial structures to be constructed. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention belongs to the technical field of a building construction method in which a plurality of stages of aerial structures are installed between a plurality of building ridges at intervals in the height direction of the building wing.

A building construction method in which an aerial structure is constructed between a plurality of building buildings is disclosed in, for example, the following Patent Document 1 by the present applicant, and is already known.
As shown in FIGS. 1 to 4 of the document 1, the building construction method according to Patent Document 1 is basically between the building buildings 1 and 1 in parallel with the process of building the building buildings 1 and 1. After the main part of the aerial structure 2 constructed between the building ridges 1 and 1 is assembled at the bottom, and the building construction is completed up to the construction level with the aerial structure 2 in the building ridges 1 and 1, the aerial structure 2 The main part of the building is raised to the erection level and fixed to the building building 1, and then the building building 1, 1 and the aerial structure 2 are completed (specifically, claim 1 of the document 1). See).
According to this construction method, compared to the technique of starting the construction work of the aerial structure 2 between the building buildings 1 and 1 after the building of the building ridges 1 and 1 is constructed up to the construction level of the aerial structure 2, Since the main part of the aerial structure 2 is assembled in parallel with the building construction of the building buildings 1 and 1, work efficiency is good and the construction period can be shortened. In addition, since the main part of the aerial structure 2 is assembled on the ground, it is possible to eliminate dangerous high-altitude work, greatly reduce labor, and is excellent in workability and high in safety. Furthermore, after fixing the main part of the aerial structure 2 to the buildings 1 and 1, the work to complete the aerial structure 2 can be used as a scaffold or work floor. Therefore, the temporary work is reduced, and it is rational and economical (see paragraphs [0002], [0005], and [0006] of the same document 1).

By the way, in Patent Document 1, there is also a building construction method in which a plurality of aerial structures 2... Are installed between a plurality of building buildings 1 and 1 at intervals in the height direction of the building buildings 1 and 1. The document [1] is disclosed as [another embodiment] in paragraph [0008] (see FIGS. 5 and 6 of the document 1).
In the building construction method, first, in parallel with the process of constructing the building ridges 1, 1, the aerial structure 2 constructed on the upper end between the building ridges 1, 1 is constructed at the bottom between the building ridges 1, 1. After the main part is assembled and the building construction is completed up to the construction level with the aerial structure 2 of the building buildings 1 and 1, the main part of the structure 2 is raised to the construction level and fixed to the building 1 building Next, the aerial structure 2 constructed in the middle part between the building buildings 1 and 1 is assembled to the main part at the bottom part between the building buildings 1 and 1, and the main part of the aerial structure 2 is assembled to the middle part of the building building. By raising the building level to the middle of the building building 1 and fixing it to the building in the middle of the building building, a plurality of (two in the illustrated example) aerial structures are spaced in the height direction of the building building. This is a technology for constructing a building that is constructed by opening the door.

Japanese Patent No. 3115942

According to the building construction method according to Patent Document 1 described above, when the one-stage aerial structure 2 is installed between the building buildings 1 and 1, work efficiency can be improved. However, when two or more stages of aerial structures 2 are installed between the building ridges 1 and 1, as described above, the aerial structure 2 is installed from the aerial structure 2 installed at the uppermost stage to the lowermost stage. Therefore, the following points are concerned from the viewpoint of work efficiency.
That is, the building construction of the building buildings 1 and 1 must be constructed in advance up to the construction level of the aerial structure 2 constructed on the uppermost stage. For example, as shown in FIGS. 1 and 5 of the same document 1, when the uppermost aerial structure 2 is installed on the top of the buildings 1 and 1, the building construction of the buildings 1 and 1 is scheduled to be constructed. It must be almost completed to the height.
Therefore, only the aerial structure 2 installed on the uppermost stage can be assembled in parallel with the building construction of the building buildings 1 and 1, and the other aerial structures 2 installed below are the building building 1, In spite of the construction of the main building 1 being almost completed, the main part is assembled at the bottom between the building ridges 1 and 1 and is raised to the erection level to be fixed to the building 1 building. The work to complete as a structure had to be repeated according to the number of steps of the aerial structures 2. As a result, construction of the bottom part between the building buildings 1 and 1 (for example, exterior finishing work) should be started until a series of operations until the aerial structures 2 are fixed to the construction level is completed. I could not.
In short, according to the building construction method according to Patent Document 1, there are various problems in installing two or more (multiple) aerial structures 2... It can't be done well, but there is room for improvement.

  The object of the present invention is to improve the work efficiency of a building comprising two or more (multi-stage) aerial structures between a plurality of building ridges at intervals in the height direction of the building ridge by a complex process. The object is to provide a method for constructing a building that can be constructed reasonably well and that is excellent in economic efficiency.

As a means for solving the above-mentioned background art problem, the building construction method according to the invention described in claim 1 is characterized in that a plurality of aerial structures are spaced in the height direction of the building building between the building buildings. It is a construction method of a building that is constructed by opening a space,
(A) The first building that is built and supported between the buildings at the bottom between the buildings in parallel with the process of constructing the building of the plurality of buildings to the level of the first-stage aerial structure. Assembling the main part of the aerial structure of the stage;
(B) When the building construction of the plurality of building buildings is advanced to the construction level, the main part of the first-stage aerial structure is raised to the construction level by taking a reaction force on the building building. , The process of fixing to the building building
(C) In parallel with the process of constructing the buildings of a plurality of building buildings up to the construction level of the second-stage aerial structure, it is constructed and supported between the building buildings on the first-stage aerial structure. Assembling the main part of the aerial structure of the second stage,
(D) When the building construction of the plurality of building buildings is advanced to the construction level, the main part of the second-stage aerial structure is raised to the construction level by taking a reaction force on the building building. , The process of fixing to the building building
(E) Thereafter, the steps (c) and (d) are repeatedly performed according to the number of stages of the aerial structure to be installed.

The invention described in claim 2 is the building construction method described in claim 1,
The main part of the aerial structure is lifted to a position higher than the construction level of the aerial structure between building buildings by attaching lifting materials such as PC steel wires and PC steel bars to the suspended points provided in the main part. A lifting beam equipped with a jack is temporarily installed, and the lifting material is lifted by the lift-up jack to raise the aerial structure to a construction level.

The invention described in claim 3 is the building construction method described in claim 1,
The plurality of building ridges are polygonal arrangements in which two or more building ridges are viewed in plan, with the building ridges spaced apart from each other by a predetermined distance, and adjacent wall surfaces being part of the polygon side. The aerial structure has a planar shape substantially the same as the polygon.

The invention described in claim 4 is the building construction method according to claim 1 or 3,
The plurality of building wings are constructed by symmetrically arranging two or more building ridges in plan view.

According to the building construction method according to claims 1 to 4, compared with the technique of starting the construction work of the aerial structure between the building ridges after constructing the building ridge frame to the construction level of the aerial structure. Have the following effects.
1) Since the assembly of the main parts 10a, 20a, and 30a of the first to third-stage aerial structures 10, 20, and 30 is performed in parallel with the building construction of the buildings 1 and 1, the work efficiency Is very good and can significantly reduce the construction period.
2) Since the main part 10a of the first-stage aerial structure 10 is assembled on the ground, dangerous work at high places can be reduced. In addition, the main parts 20a, 30a of the second-stage and third-stage aerial structures 20, 30 are respectively operated on the first-stage and second-stage aerial structures 10, 20 installed immediately below them. Since it is assembled in a stable state as a stage, it is excellent in workability and reasonable.
3) Since each main part 10a ... can be used as a scaffold or work floor for the work of completing the aerial structure 10 ... after fixing the main parts 10a ... Since there is no need to install a temporary work floor, the temporary work is reduced, which is rational and economical.

Moreover, according to the building construction method according to claims 1 to 4, the following effects can be obtained as compared with the technique disclosed in the above-mentioned Patent Document 1.
4) In parallel with the building construction of the buildings 1 and 1, not only the main part 10a of the first-stage aerial structure 10, but also the second- and third-stage aerial structures 20 and 30 Since the main parts 20a and 30a can be assembled, the work efficiency is very good and reasonable, and the construction period can be greatly shortened. This greatly contributes to cost reduction.
5) After completing the lifting work of the main part 10a, undertake construction of the bottom part between the building buildings 1 and 1 (for example, exterior finishing work) in parallel with the building construction of the building buildings 1 and 1. Work efficiency is good and reasonable. In addition, after completing the lifting work of the main part 20a (30a), in parallel with the building construction of the building buildings 1 and 1, the construction of the upper surface of the main part 10a (20a) immediately below it (for example, waterproofing work, The planting work etc. can be started, so the work efficiency is good and reasonable.
6) According to the technique disclosed in Patent Document 1, for example, when the three-stage aerial structures 10, 20, and 30 are respectively installed at a height of 40 m, 80 m, and 120 m from the ground, The main part 10a of the structures 10 ... must be lifted by a total of 240 m. On the other hand, according to the building construction method having the above configuration, the main portion 10a of the first-stage aerial structure 10 is raised by 40 m and then assembled on the first-stage aerial structure 10. If the main portion 20a of the second-stage aerial structure 20 is raised by about 40 m, it can be installed at a height of 80 m from the ground. Similarly, on the second-stage aerial structure 20, If the main part 30a of the assembled third-stage aerial structure 30 is raised by about 40 m, it can be erected at a height of 120 m from the ground. Therefore, it is possible to significantly shorten the construction period for the work of raising the main parts 10a of the aerial structures 10... And to significantly reduce the costs associated therewith.

7) In particular, according to the building construction method according to claim 2, in addition to the above-described effect, the suspended point and the suspended point ( The number of lift-up jacks J ₁ , J ₂ ) can be easily increased or decreased, and the position on the plane can be freely adjusted. Therefore, even if the main part 10a is a larger and larger structure, Since the lift-up operation can be performed in a stable state, it contributes to the improvement of safety.

According to the present invention, a building construction method in which a plurality of stages of aerial structures are installed at intervals in the height direction of a building building between a plurality of building buildings, the effects of the invention described above are achieved.
(A) The first building that is built and supported between the buildings at the bottom between the buildings in parallel with the process of constructing the building of the plurality of buildings to the level of the first-stage aerial structure. Assembling the main part of the aerial structure of the stage;
(B) When the building construction of the plurality of building buildings is advanced to the construction level, the main part of the first-stage aerial structure is raised to the construction level by taking a reaction force on the building building. , The process of fixing to the building building
(C) In parallel with the process of constructing the buildings of a plurality of building buildings up to the construction level of the second-stage aerial structure, it is constructed and supported between the building buildings on the first-stage aerial structure. Assembling the main part of the aerial structure of the second stage,
(D) When the building construction of the plurality of building buildings is advanced to the construction level, the main part of the second-stage aerial structure is raised to the construction level by taking a reaction force on the building building. , The process of fixing to the building building
(E) Thereafter, the above steps (c) and (d) are carried out by repeating the steps in accordance with the number of the aerial structures to be installed.

  1A to F show step-by-step steps of a building construction method according to claim 1. In this building construction method, a plurality of aerial structures 10, 20, 30 are erected between a plurality of building ridges 1, 1 in order at intervals in the height direction of the building ridges 1, 1. It is a construction method.

First, as shown in FIG. 1A, in parallel with the process of constructing the building of the plurality of building buildings 1 and ₁ up to the construction level H ₁ with the first-stage aerial structure 10, the building building 1, The main part 10a of the first-stage aerial structure 10 that is installed and supported between the building ridges 1 and 1 is assembled at the bottom between the two (step (a)).
As shown in FIG. 1B, when the building construction of the plurality of building buildings 1 and _{1 is} advanced to the erection level H1, the main part 10a of the first-stage aerial structure 10 is moved to the building building. The reaction force is applied to 1, ₁ and is raised to the erection level H ₁ to be fixed to the buildings of the building buildings 1, 1 (step (b)).
As shown in FIG. 1C, the first-stage aerial structure is constructed in parallel with the process of constructing the buildings of the plurality of building buildings 1 and 1 up to the construction level H ₂ of the second-stage aerial structure 20. On the body 10, the main part 20a of the second-stage aerial structure 20 that is constructed and supported between the building ridges 1 and 1 is assembled (step (c)).
As shown in FIG. 1D, at the stage of the precursor construct of the plurality of building buildings 1,1 proceeded to the erection level H _2, the main portion 20a of the second stage of the airborne structure 20, the building Building The reaction force is applied to 1, 1 and is raised to the erection level H ₂ to be fixed to the building of the building buildings 1, 1 (step (d)).
As shown in FIG. 1E, a precursor construction of multiple buildings buildings 1,1, in parallel with the process carried out until erection level H ₃ of the aerial structure 30 of the third stage, the air of the second stage On the structure 20, the main part 30a of the third-stage aerial structure 30 that is installed and supported between the building buildings 1 and 1 is assembled (step (c) related to (e)).
As shown in FIG. 1F, at the stage of the precursor construct of the plurality of building buildings 1,1 proceeded to the erection level H _3, the main portion 30a of the aerial structure 30 of the third stage, the building Building 1,1 to take the reaction force is increased to the erection level H _3, to fix the skeleton of the building building 1,1 (according to (e) (steps d)).

Thereafter, as shown in FIGS. 2A and 2B, the plurality of building buildings 1 and 1 are constructed and completed to a required height, and the main part 30a of the aerial structure 30 fixed at the uppermost stage is formed in the aerial structure 30. Complete as.
Regarding the step (c), in the building construction method according to the illustrated example, after the main part 10a of the aerial structure 10 is almost completed, the main part 20a of the aerial structure 20 at a position immediately above it is assembled. Although the work is performed (see FIG. 1C), the present invention is not limited to this, and assembling work of the main part 20a of the aerial structure 20 is performed, such as placing floor concrete on the main part 10a of the aerial structure 10. It is only necessary to proceed as much as possible. In this case, the operation of completing the main portion 10a of the aerial structure 10 as the aerial structure 10 may be performed after the lifting operation of the main portion 20a of the aerial structure 20, or the finishing operation of the building buildings 1 and 1 Sometimes you can go. The same applies to the work of completing the main portion 20a of the aerial structure 20.

  As an example, the building ridge 1 is constructed with a pillar or beam housing made of steel or reinforced concrete, a floor is a site-molded PC version, and the exterior is a high-rise or super-high-rise structure with curtain walls. Yes. By the way, in this embodiment, the building building 1 is assumed to be a high-rise building building 1 having a width dimension (site area) of about 20 m × 20 m, a height of about 140 m (42 stories), and an aspect ratio of about 7. However, it can of course be similarly applied to low-rise buildings. In the first embodiment, as shown in FIGS. 2A and 2B, the two building ridges 1 are constructed with symmetrical sizes and arrangements in plan view, but not limited thereto. As will be described later in Example 2, the invention can be implemented in three or more buildings (see FIGS. 4 and 11, the invention described in claim 4).

The aerial structures 10, 20, 30 of the first to third stages are each formed in a rectangular parallelepiped shape based on a steel structure such as a truss structure in this embodiment. As long as the structure has a size (shape) and rigidity capable of being installed and supported on the hood, it can be implemented in various variations. For example, it corresponds to both end portions (or one end portions) of the lower chord material as disclosed in paragraph [0019] of Japanese Patent Application No. 2006-254463 and paragraph [0018] of Japanese Patent Application No. 2006-254677 filed earlier by the present applicant. It is also possible to implement a truss structure in which a damper member is provided at the position. Of course, the present invention can also be implemented by a structure in which a steel beam, a steel column, a diagonal steel frame, and the like are disclosed in Patent Document 1 and an annular hole or the like penetrating vertically is formed in the central portion. The aerial structures 10 are used for a passage or a resident's rest space after completion.
The first to third aerial structures 10, 20, and 30 according to the illustrated example are installed in three stages at predetermined intervals in the height direction between the building buildings 1 and 1. However, it can be implemented in two stages or in four or more stages. Incidentally, in the present embodiment, the first-stage aerial structure 10 is constructed on the 15th floor, the second-stage aerial structure 20 is constructed on the 26th-floor, and the third-stage aerial structure 30 is provided. Is assumed to be installed on the 37th floor.

About the process (a), in parallel with the building construction of the building buildings 1 and 1, the main part 10a of the first-stage aerial structure 10 assembled on the base 2 at the bottom between the building buildings 1 and 1 is: In this embodiment, as shown in FIG. 1A and the like, a truss having a size (shape) and rigidity capable of being installed and supported at least between the building buildings 1 and 1 by a steel member such as an H-shaped steel. The structure is assembled and implemented. At this point, the reason why the first-stage aerial structure 10 is not assembled only by assembling only the main part 10a is that, in consideration of lift-up work after assembly, it is better to reduce the weight as much as possible. It is also preferable for safety.
In the present embodiment, the main part 10a of the aerial structure 10 is assembled on the gantry 2 installed on the ground, but is not limited to this. For example, a low-rise building such as a tenant between the building buildings 1 and 1 is used. Is constructed in advance, the roof portion of the low-rise building is used as a work stage, and the assembling work of the main portion 10a of the aerial structure 10 is performed on the gantry 2 installed on the roof portion.

Regarding the step (b), the means for raising the main portion 10a of the first-stage aerial structure 10 is substantially the same as the method disclosed in Patent Document 1, and as shown in FIG. the wire 4 attached to the suspension point 3 provided good balance in the four corners of the main part 10a, in the high position (shown example from erection level H ₁ of the aerial structure 10 of the first stage in the skeleton of the building building 1,1 The first wire assembled on the ground by winding the wire 4 around a pulley device 6 attached to a cross-girder-shaped gantry 5 provided on each of the upper end portions and winding the wire 4 with a winch 7 installed on the ground or the like. We are lifted up a main portion 10a of the aerial structure 10 th stage to the erection level H ₁ (see FIG. 1B). In addition, the guide rail which guides the raise of the said main part 10a is abbreviate | omitted for convenience of illustration.
The pulley 2 as well as the pulley device 6, the cross-girder-like frame 5 that supports the pulley device 6, and the guide rail are removed after the fact.
Incidentally, the means for raising the main part 10a of the first-stage aerial structure 10 is not limited to this, and it can be implemented by means as described in Example 2 later, or a so-called push-up method (aerial structure). It is also possible to implement by a means of pushing up the main parts 10a ... from below to the upper part (for example, a hydraulic jack) while supporting the main parts 10a ... of the bodies 10 ... from below.
The means for fixing the main part 10a of the first-stage aerial structure 10 to the housing of the building 1 is, in this embodiment, H-section steel or the like constituting the upper chord material and the lower chord material of the truss structure. The ends of the steel members are firmly and rigidly connected to the steel columns or the steel beams that constitute the housing of the corresponding building ridge 1 by joining means such as bolts or welding.

Regarding the step (c), in the illustrated example, the main part 10a of the first-stage aerial structure 10 installed between the building ridges 1 and 1 is used as a scaffold or work floor, and the main part of the aerial structure 10 is used. The remaining part other than 10a is constructed to almost complete the aerial structure 10. By the way, the building construction of the building buildings 1 and 1 and the assembly work of the main portion 20a of the aerial structure 20 immediately above it can be advanced without waiting for the completion of the aerial structure 10, and the aerial structure It is also possible to proceed after completion of the body 10.
Next, using the aerial structure 10 (the main part 10a thereof) as a work stage, the main part 20a of the second-stage aerial structure 20 is assembled (see FIG. 1C).

In the step (d), the main portion 20a of the second-stage aerial structure 20 assembled on the first-stage aerial structure 10 is used as the installation level H of the second-stage aerial structure 20. _The means for raising to ₂ is the same as the means for raising the first-stage aerial structure 10 described above. In other words, although not shown in the drawings, a pulley is attached to a suspended point provided in a well-balanced manner at the four corners of the main part 20a and attached to a cross-girder-like gantry provided at the upper end of the building of the building ridges 1 and 1. wound the wire, by winding the wire at the installation the winches on the ground or the like, and lifting up the main portion 20a of the second stage of the airborne structure 20 until the erection level H ₂ (FIG. 1D reference). As in the case where the main portion 10a of the first-stage aerial structure 10 is lifted up, the pulley device, the cross-girder support that supports the pulley device, and the guide rail are removed later.
The means for fixing the main portion 20a of the second-stage aerial structure 20 to the housing of the building ridge 1 is a truss as in the case of the main portion 10a of the first-stage aerial structure 10. The ends of the steel members such as H-shaped steels constituting the upper chord material and lower chord material of the structure are firmly attached to the steel columns or steel beams constituting the housing of the corresponding building ridge 1 by means of joining such as bolts or welding. It is connected tightly.

In the step (e), as shown in FIG. 1E, the main part of the second-stage aerial structure 20 installed between the building buildings 1 and 1 in parallel with the building construction of the building buildings 1 and 1 20a is used as a scaffold or work floor, the remaining part other than the main part 20a of the aerial structure 20 is constructed to almost complete the aerial structure 20, and then the aerial structure 20 is used as a work stage. The method for assembling the main part 30a of the aerial structure 30 in the third stage is as described in the step (c).
Further, as shown in FIG. 1F, the main portion 30a of the third-stage aerial structure 30 assembled on the second-stage aerial structure 20 is applied to the building ridges 1 and 1 as a reaction force. the third stage is raised until the erection level H ₃ of the aerial structure 30, a method of fixing the skeleton of the building building 1,1 are as described step (d).
Then, after fixing the main portion 30a of the aerial structure 30 of the third stage in the erection level H ₃ between the building Building 1,1, as shown FIG. 2A, the B, building Building 1,1 Is completed to the height that is planned to be constructed, and the main part 30a of the third-stage aerial structure 30 is used as a scaffold or work floor, and the remaining part other than the main part 30a of the aerial structure 30 is constructed in the air. The structure 30 is completed.

  Incidentally, when the number of steps of the aerial structure erected between the building ridges 1 and 2 is two, the steps (c) and (d) relating to the above (e) are not necessary. ), A plurality of building ridges 1 and 1 are completed, and a finishing process (including waterproofing work, planting work, etc.) for completing the aerial structures 10 and 20 is performed. . In addition, if the number of stages of the aerial structure is three or more, after repeating the steps (a) to (d) and repeating the process (e) according to the number of stages of the aerial structure, Are completed, and a finishing process for completing the aerial structures 10 is performed.

  Therefore, according to the construction method of the building having the above configuration, the building building is compared with the technique of starting the construction work of the aerial structure between the building buildings after the building body is built to the level of the aerial structure. In parallel with the construction of the first and first housings, the main parts 10a, 20a, 30a of the first to third stage aerial structures 10, 20, 30 are assembled so that the work efficiency is very good. The construction period can be greatly shortened. Moreover, since the main part 10a of the aerial structure 1 in the first stage is assembled on the ground, dangerous high place work can be reduced. The main parts 20a and 30a of the second-stage and third-stage aerial structures 20 and 30 are stabilized on the first-stage and second-stage aerial structures 10 and 20, respectively, which are installed immediately below them. Since it is assembled in a state, it is excellent in workability and reasonable. Further, after fixing the main parts 10a to the building ridges 1 and 1, the work to complete the aerial structure 10 can be used as a scaffold or work floor. Since there is no need to install a temporary work floor, the temporary work is reduced, which is rational and economical.

Moreover, according to the building construction method having the above-described configuration, the first-stage aerial structure 10 is parallel to the building construction of the building buildings 1 and 1 as compared with the technique disclosed in Patent Document 1. Since not only the main part 10a but also the main parts 20a and 30a of the second and third stage aerial structures 20 and 30 can be assembled, the work efficiency is very good, reasonable, and the construction period is long. Can be greatly shortened. This greatly contributes to cost reduction. In addition, after completing the lifting work of the main part 10a, the construction of the bottom part between the building buildings 1 and 1 (for example, exterior finishing work) is started in parallel with the building construction of the building buildings 1 and 1. It is possible to work efficiently and rationally. In addition, after completing the lifting work of the main part 20a (30a), in parallel with the building construction of the building buildings 1 and 1, the construction of the upper surface of the main part 10a (20a) immediately below it (for example, waterproofing work, The planting work etc. can be started, so the work efficiency is good and reasonable.
Further, according to the technique disclosed in Patent Document 1, for example, when the three aerial structures 10, 20, and 30 are installed at a height of 40 m, 80 m, and 120 m from the ground, naturally, The main part 10a of the structures 10 ... must be lifted by a total of 240 m. On the other hand, according to the building construction method having the above configuration, the main portion 10a of the first-stage aerial structure 10 is raised by 40 m and then assembled on the first-stage aerial structure 10. If the main portion 20a of the second-stage aerial structure 20 is raised by about 40 m, it can be installed at a height of 80 m from the ground. Similarly, on the second-stage aerial structure 20, If the main part 30a of the assembled third-stage aerial structure 30 is raised by about 40 m, it can be erected at a height of 120 m from the ground. Therefore, it is possible to significantly shorten the construction period for the work of raising the main parts 10a of the aerial structures 10... And to significantly reduce the costs associated therewith.

FIG. 4 shows a different embodiment of the building construction method described in claim 1. Compared to the first embodiment, this building construction method is implemented by providing three building buildings 1 having the same shape and the same size as the building building 1, and accompanying this, building buildings 1, 1, The first- to third-stage aerial structures 10, 20, 30 and the main parts 10 a, 20 a, 30 a laid between 1 and 2 are formed in a substantially hexagonal shape in plan view; and Means for raising the main parts 10a, 20a, 30a are mainly different.
Therefore, since the procedure of the building construction method according to the second embodiment is performed in the same steps as the above-described steps (a) to (e) according to the first embodiment, the process diagrams of FIGS. The explanation is omitted as appropriate.

  In the building construction method according to the second embodiment, as shown in FIG. 4, the three building buildings 1, 1, 1 are viewed in plan, and the building buildings 1, 1, 1 are spaced apart from each other by a predetermined distance. Are constructed in a polygonal arrangement in which the wall surfaces adjacent to each other are part of the sides of a polygon (in the illustrated example, a hexagon), and the aerial structure has substantially the same planar shape as the polygon (Invention of claim 3) Specifically, the plurality of building buildings according to the illustrated example are constructed in a balanced manner in a symmetrical arrangement in which the three building buildings 1, 1, 1 are located at the vertices of substantially equilateral triangles in plan view. The first to third aerial structures 10, 20, and 30 erected between the three building buildings 1, 1, 1 are substantially hexagonal in plan view. .

Wherein the first stage of the main portion 10a of the aerial structure 10 assembled on the ground by the steps of (i), in accordance with step (b), means for raising FIGURES 1A - erection level H ₁ of FIG. 1B As shown in FIGS. 5 to 7, PC steel wires hanging from lift-up jacks J ₁ and J ₂ (described later) at a total of six suspended points T ₁ and T ₂ provided in the main portion 10a. Or a lifting material 13 such as a PC steel rod) is attached, and a position higher than the construction level H ₁ of the first-stage aerial structure 10 between the building buildings 1, 1, 1 (between the upper ends of the building buildings 1, 1). A lifting beam 8 having lift-up jacks J ₁ and J ₂ mounted thereon is temporarily installed, and the lifting material 13 is lifted by the lift-up jacks J ₁ and J ₂ , so that the installation level H ₁ of the aerial structure 10 is increased. Is raised to Second aspect of the present invention as claimed).

As means for providing the suspended points T ₁ and T ₂ in the main part 10a, in this embodiment, as shown in FIGS. 5 and 7C, adjacent building ridges 1, which are constituent elements of the main part 10a, The central portions of a predetermined horizontal member (steel beam) 12a (see FIG. 7C) that connects the upper chord members of the three truss structures 12 provided between 1 are defined as suspended points T ₁ and T ₂ . The suspended points T ₁ and T ₂ are formed by processing with a plate and are tightly connected to the end of a PC steel wire (or PC steel rod). Further, as shown in FIG. 7C, the suspended points T ₁ and T ₂ are preferably reinforced with a reinforcing material 14 formed in an inverted V shape so as to prevent deformation of the frame.

As shown in FIG. 6, the lifting beam 8 temporarily installed at the upper end between the building ridges 1, 1, 1 is formed in a long and narrow girder shape by combining long and short steel plates (or H-shaped steel). In plan view, the truss structure 12 is placed so as to pass through an arrangement corresponding to the suspended points T ₁ and T ₂ . Lifting jacks J ₁ and J ₂ are mounted on the lifting beam 8 at positions substantially coincident with each other in plan view so as to correspond to the suspended points T ₁ and T ₂ , respectively. The lift-up jacks J ₁ and J ₂ are each configured to be positioned along the longitudinal direction of the lifting beam 8.
In addition, although illustration is abbreviate | omitted, the site | part (for example, steel beam) which mounts the said lifting beam 8 in the upper end part of the said building ridge 1 is preferably reinforced with a reinforcing material. Further, the lift-up jacks J ₁ and J _{2 according} to the present embodiment are implemented by so-called double twin jacks, but are not limited thereto, and can also be implemented by a center hole jack.
Incidentally, reference numeral 11 in FIG. 6 indicates a safety passage for the operator, and is provided along the lifting beam 8.

That is, the means for lifting up the main portion 10a (or 20a, 30a) according to FIGS. 5 to 7 is first a portion capable of lifting the entire main portion 10a in a balanced manner (in this embodiment, a total of six portions). ) Is calculated in advance, and the central part of the horizontal member 12a of the truss structure 12 located in the vicinity of the part is defined as the suspended points T ₁ and T ₂ . Next, the lifting beam 8 is temporarily installed between the upper ends of the building buildings 1 and 1 so as to correspond to the arrangement of the truss structure 12. Then, the lift-up jacks J ₁ and J ₂ mounted on the lifting beam 8 are positioned at predetermined portions, so that the suspended points T ₁ and T ₂ provided on the horizontal member 12a in plan view and the lift The up jacks J ₁ and J ₂ are substantially matched with each other.

Thus, as shown FIG. 7A, the B, and stable state, the main portion 10a of the aerial structure 10 of the first stage, can be lifted up from FIG. 1A to erection level H ₁ of FIG. 1B It is.
In a similar way, the second stage of the main portion 20a of the aerial structure 20 according to the method of (d), in a stable state, can be lifted up from the FIG. 1C to erection levels of H ₂ FIG. 1D In addition, the main portion 30a of the third-stage aerial structure 30 according to the step (e) can also be lifted up from the FIG. 1E to the erection level H _{3 in} FIG. 1F in a stable state. .

In addition, in the present Example 2, although the suspended point is implemented in six places, it is not limited to this, It implements by increasing / decreasing suitably on condition that the main part 10a can be lifted up in the stable state. In accordance with this, the amount of the lifting beam 8 and the lift-up jacks J ₁ and J ₂ used is appropriately increased and decreased.

Therefore, according to the building construction method having the above configuration, in addition to being able to achieve the same operational effects as those of the first embodiment, the main parts 10a of the aerial structures 10 can be lifted in a balanced manner. The number of suspension points T ₁ and T ₂ and the number of suspension points (lift-up jacks J ₁ and J ₂ ) can be easily increased and decreased, and their positions can be adjusted, so that the main part 10a is larger and larger. Even if it becomes a structure, the lift-up operation can be performed in a stable state, which contributes to an improvement in safety.

In addition, suspended points T ₁ and T ₂ are formed as means for temporarily lifting the lifting beam 8 mounted with the lift-up jacks J ₁ and J ₂ at the upper end between the building ridges 1, ₁ , ₁ . The means to do is not limited to this.
For example, as shown in FIGS. 8 to 10, two connecting members 9 are attached to the upper end portion (upper chord material) of each truss structure 12 at a predetermined interval in a direction orthogonal to the longitudinal direction. The suspended point T ₁ (T ₂ ) may be provided on the connecting member 9 in a slidable configuration. According to this method, there is an advantage that the suspended point T ₁ (T ₂ ) can be formed at a position that substantially coincides with a portion where the entire main portion 10a can be lifted with good balance.

The embodiments have been described with reference to the drawings. However, the present invention is not limited to the illustrated embodiments, and design modifications and application variations that are usually made by those skilled in the art are within the scope of the technical idea of the invention. Note that it includes the range.
For example, in the first and second embodiments, the aerial structures 10 are installed in two or three buildings, but the present invention is not limited to this, and can be implemented in four or more buildings ( FIG. 11).
Further, in the first and second embodiments, the balance is constructed in a balanced manner in plan view, but can be implemented not only in a symmetrical arrangement by considering the load balance (FIG. 11G). reference). Accordingly, in the first and second embodiments, the building ridges 1, 1,... Are implemented with the same shape and size. However, the present invention is not limited to this. As long as it is a building wing, it can be implemented in various variations (see FIGS. 11B and 11G).

A to F are process diagrams showing the building construction method according to the present invention step by step. A is a top view of the building constructed by the building construction method according to the present invention, and B is a front view thereof. It is the elevation which showed the means which lifts up the principal part which concerns on Example 1. FIG. It is the top view which showed the construction method of the building which concerns on Example 2. FIG. It is the top view which showed the principal part of the aerial structure assembled between buildings about the building construction method concerning Example 2. FIG. It is the top view which showed the lifting beam temporarily installed in the upper end part between buildings about the building construction method concerning Example 2. FIG. 6A is a front view of the lifting beam according to FIG. 6, B is a front view showing a truss structure that constitutes a main part of the aerial structure according to FIG. 5, and C is a side view of B. FIG. is there. It is the top view which showed the principal part of the aerial structure assembled between buildings about the building construction method which concerns on the variation of Example 2. FIG. It is the top view which showed the lifting beam temporarily installed in the upper end part between buildings about the building construction method which concerns on the variation of Example 2. FIG. 9A is a front view of the lifting beam according to FIG. 9, B is a front view showing a truss structure constituting the main part of the aerial structure according to FIG. 8, and C is a side view of B. FIG. is there. A to G are plan views showing variations in the shapes of the building ridge and the aerial structure, respectively.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Building ridge 2 Base 3 Suspended point 4 Wire 5 Cross-girder base 6 Pulley device 7 Winch 8 Lifting beam 9 Connecting material 10 First stage aerial structure 10a Main part 11 of first stage aerial structure 11 Passage 12 truss structure 12a horizontal material 13 lifting material (PC steel wire, PC steel bar)
14 Reinforcing material 20 Second stage aerial structure 20a Main part 30 of second stage aerial structure Third stage aerial structure 30a Main part of third stage aerial structure T ₁ , T ₂ Suspended point J ₁ , J ₂ Lifting jack

Claims (4)

A method for constructing a building comprising a plurality of aerial structures spanned in the height direction of a building building between a plurality of building buildings,
(A) The first building that is built and supported between the buildings at the bottom between the buildings in parallel with the process of constructing the building of the plurality of buildings to the level of the first-stage aerial structure. Assembling the main part of the aerial structure of the stage;
(B) When the building construction of the plurality of building buildings is advanced to the construction level, the main part of the first-stage aerial structure is raised to the construction level by taking a reaction force on the building building. , The process of fixing to the building building
(C) In parallel with the process of constructing the buildings of a plurality of building buildings up to the construction level of the second-stage aerial structure, it is constructed and supported between the building buildings on the first-stage aerial structure. Assembling the main part of the aerial structure of the second stage,
(D) When the building construction of the plurality of building buildings is advanced to the construction level, the main part of the second-stage aerial structure is raised to the construction level by taking a reaction force on the building building. , The process of fixing to the building building
(E) A method for constructing a building comprising the steps of repeating the steps (c) and (d) according to the number of steps of the aerial structure to be installed.   The main part of the aerial structure is lifted to a position higher than the construction level of the aerial structure between building buildings by attaching lifting materials such as PC steel wires and PC steel bars to the suspended points provided in the main part. The building construction method according to claim 1, wherein a lifting beam equipped with a jack is temporarily installed, and the lifting material is lifted by the lifting-up jack, whereby the building is raised to an aerial structure level. .   The plurality of building ridges are polygonal arrangements in which two or more building ridges are viewed in plan, with the building ridges spaced apart from each other by a predetermined distance, and adjacent wall surfaces being part of the polygon side. The building construction method according to claim 1, wherein the aerial structure has a planar shape substantially the same as the polygon.   The building construction method according to claim 1 or 3, wherein the plurality of building buildings are constructed in a symmetrical arrangement with two or more building buildings in plan view.

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