JP2019015077A - Construction method of building - Google Patents

Abstract

To propose a construction method of a building capable of achieving a shortened construction period by an efficient construction procedure.SOLUTION: A construction method of a building includes: concrete skeleton construction for constructing a concrete pedestal 3; steel frame skeleton construction for constructing a steel frame 4 for surrounding the concrete pedestal 3; and roof construction for constructing a steel-framed roof 5 for covering an upper part of the concrete pedestal 3. In the steel frame skeleton construction, the steel frame 4 is divided into a plurality of construction sections flatly, and is constructed sequentially by the construction section in parallel with the concrete skeleton construction, and the roof construction is completed after the concrete skeleton construction.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a building construction method.

In a turbine building of a power plant, a turbine mount for installing a large and heavy turbine is formed inside the building body. As such a turbine building, there are cases where the turbine mount has a concrete structure and the building body surrounding the turbine mount has a steel structure.
As a construction method for a turbine building, Patent Document 1 discloses a construction method for constructing a building body around a turbine frame after the turbine frame is constructed. In addition, as another construction method, there is a case where a turbine base is built inside after building a building main body.
However, in the conventional construction method, there is a problem that the construction period becomes long because one of the turbine mount and the building main body is constructed in advance and the other is constructed. Moreover, when constructing a turbine mount after constructing the building main body, a large crane cannot be used inside the building main body, so that work is troublesome.
On the other hand, if the construction of the turbine mount and the construction of the building main body are performed in parallel, the construction period can be shortened. However, because the construction speed differs between the concrete structure of the turbine mount and the steel structure of the building main body, the construction of the building main body is preceded. As a result, the turbine mount is forced to be installed inside the building main body. End up.

Japanese Patent Laid-Open No. 2006-145494

  From such a viewpoint, an object of the present invention is to propose a construction method for a building that can shorten the work period by an efficient construction procedure.

In order to solve the above problems, the building construction method of the present invention includes a concrete frame construction for constructing a concrete frame, a steel frame structure for constructing a steel frame surrounding the concrete frame, and a steel frame joined to the steel frame. And roof construction to build a roof. In the steel frame construction, the steel frame is divided into a plurality of work zones in a planar manner, and is built in order for each of the work zones in parallel with the concrete frame work. Moreover, the said roof construction is interrupted when the said steel frame roof of the predetermined range except the upper direction of the said concrete mount is joined, and it restarts after the said concrete frame construction is completed.
According to the construction method of the building, since the steel frame and roof construction are performed in accordance with the progress of the concrete mount, efficient construction is possible. That is, workability is excellent because the construction is performed so that the construction of the concrete frame and the construction of the steel frame can be performed simultaneously, including the placement of construction machines such as cranes.

In the steel frame construction, the steel frame is divided into a steel work area on the back side, a steel work area on the right and left sides, and a steel work area on the front side with the concrete frame as the center. It is desirable to construct the steel frame by starting the process and finally constructing the steel work area on the front side.
In addition, the steel frame construction and the roof construction are performed by giving priority to the concrete frame construction until the steel roof in a predetermined range excluding the upper part of the concrete frame is joined. Adjust so that the work range of the frame work, steel frame work and roof work does not overlap.
According to the construction method of the building, it is possible to perform construction from the work yard provided on the front side by constructing the steel frame from the work zone on the back side. Moreover, construction of a large building is enabled by using a luffing crane. Moreover, a plurality of frame constructions can be performed simultaneously by preventing the work ranges from overlapping.

The construction of the steel frame, centered on the concrete frame, the first steel frame on the right side, the second steel frame on the back center side, the third steel frame on the left side, the fourth steel zone on the right and front right side, the left side It is desirable to divide into the fifth steel zone on the left front, the sixth steel zone on the right side of the front center, and the seventh steel zone on the left side of the front center. At this time, a first step for constructing the first steelwork zone, a second step for constructing the second steelwork zone, a third step for constructing the third steelwork zone, the fourth steelwork zone and the steel frame A fourth process for constructing the lower part of the sixth work area, a fifth process for constructing the lower part of the steel structure fifth work area and the steel structure seventh work area, an upper part of the steel structure sixth work area, an upper part of the steel structure seventh work area, and What is necessary is just to perform in order the last process of constructing the said steel frame roof.
In addition, it is preferable that the concrete frame is constructed by dividing into a right frame for the frame, a middle zone for the frame, and a left frame for the frame. At this time, in the first step, the lower beam of the left frame of the gantry and the lower beam of the middle frame of the gantry is constructed. In the process, the column of the left frame of the gantry is constructed, and in the fifth step, the column of the right frame of the gantry is constructed. Furthermore, it is desirable to provide a sixth step of constructing an upper beam of the concrete mount before the final step.
According to the construction method of the building, since the construction of the steel frame and the concrete frame is performed in parallel, the construction period can be shortened. Moreover, the construction machine used for the construction of the steel frame and the construction machine used for the construction of the concrete frame can be efficiently constructed without interfering with each other.

  According to the building construction method of the present invention, it is possible to shorten the construction period of building construction having different structural types (for example, a concrete frame and a steel frame) by an efficient construction procedure.

(A) is a front view which shows the turbine building which concerns on embodiment of this invention, (b) is the same top view. It is sectional drawing of the turbine building shown in FIG. It is a schematic diagram which shows the construction zone of a concrete frame and a steel frame. It is a figure which shows a preparatory process, Comprising: (a) is a top view, (b) is a front view, (c) is sectional drawing. (A) is a top view which shows a 1st process, (b) is the same front view. (A) is an AA arrow view of FIG. 5, (b) is a BB arrow view of FIG. (A) is a top view which shows a 2nd process, (b) is the same front view. (A) is a top view which shows a 3rd process, (b) is the same front view. (A) is a top view which shows a 4th process, (b) is the same front view. (A) is a top view which shows a 5th process, (b) is the same front view. (A) is a top view which shows a 6th process, (b) is the same front view. (A) is a top view which shows the last process, (b) is the same front view, (c) is the same sectional drawing.

This embodiment demonstrates the construction method of the building which constructs the turbine building 1 in a thermal power plant. As shown in FIG. 1 and FIG. 2, the turbine building 1 includes a foundation 2, a concrete frame (concrete frame) 3 that is a support for the turbine generator, and a steel frame composed of a steel frame 4 surrounding the concrete frame 3, A steel roof 5 covering the upper part of the concrete mount 3 is provided.
The building construction method includes a concrete frame construction for constructing the concrete mount 3, a steel frame construction for constructing the steel frame 4, and a roof construction for constructing the steel roof 5 covering the upper surface of the building. Concrete frame work and steel frame work will be performed in parallel according to each other's progress.
In this embodiment, as shown in FIG. 3, the turbine building 1 is divided into 10 work zones (work zone A1 to work zone A10) in a plane, and concrete frame work, steel frame work and roof work are performed for each work zone. To do.

The concrete mount 3 is a rectangular parallelepiped frame formed by combining a concrete column (lower layer column 31, upper layer column 33), a concrete beam (lower layer beam 32, upper layer beam 34) and a concrete floor. In the present embodiment, a lower column 31 erected on the foundation 2, a lower beam 32 supported by the lower column 31, an upper column 33 erected on the lower beam 32, and an upper beam 34 supported by the upper column 33. I have. Each member (column, beam and floor) constituting the concrete mount 3 is formed of cast-in-place concrete.
As shown in FIG. 3, the concrete frame construction divides the concrete frame (concrete frame) 3 into a plurality of work zones in a planar manner, and the concrete frame 3 is constructed for each work zone. In this embodiment, the concrete mount 3 is divided into three work zones: a mount right work zone (eighth work area A8), a stand middle work area (ninth work area A9), and a stand left work area (tenth work area A10). Note that the number of work zones and the arrangement of the work zones when the concrete mount 3 is constructed are not limited, and may be set as appropriate.

In the steel frame construction, a steel frame (steel frame) 4 having a frame shape in plan view is formed so as to surround the four sides of the concrete frame 3. As shown in FIG. 2, the steel frame 4 is formed by combining a steel column 41, a steel beam 42, and a floor 43. In the part facing the front surface of the concrete frame 3 of the steel frame 4 (the sixth work area A6 and the seventh work area A7), the lower part has a floor surface having the same height as the upper beam 34 of the concrete frame 3, The part has a structure having only an outer wall part. The structure of the steel frame 4 is not limited.
In the steel frame construction, as shown in Fig. 3, the steel frame 4 is divided into a plurality of work zones (steel work zones) in a plane, and the building method is built from the back steel work zone according to the progress of the concrete frame work. Start, and finally, build the steel frame 4 by building the steel work zone on the near side. In the present embodiment, the steel frame 4 is centered on the concrete mount 3, the first steel zone (first zone A 1) on the right side, the second steel zone (second zone A 2) on the back center side, and the steel frame on the left side. The third work area (third work area A3), the right and front right steel frame fourth work area (fourth work area A4), the left and front left steel frame fifth work area (fifth work area A5), the front center right steel frame sixth work area (Sixth work area A6) and the steel structure seventh work area (seventh work area A7) on the left side of the front center. Note that the number of work zones and the arrangement of the work zones when the steel frame 4 is constructed are not limited, and may be set as appropriate.

In roof construction, the steel roof 5 which covers the upper surface of a building is formed by combining a steel frame and a roof panel. The structure of the steel roof 5 is not limited.
As shown in FIG. 3, the roof construction is performed for each work area divided in a plane. The roof work in the first work area A1 to the fifth work area A5 is performed by constructing the steel frame 4 in each work area and then joining the steel roof 5 to the steel structure 4. On the other hand, regarding the sixth work area A6 to the tenth work area A10 above the concrete mount 3 and the front side portion of the concrete mount 3, after the construction of the concrete mount 3 or after the completion of the construction process of the concrete mount 3 using a crane. carry out.

The building construction method of the present embodiment includes a preparation process, a first process to a sixth process, and a final process. In addition, what is necessary is just to determine the number of processes in construction of the turbine building 1 suitably according to the shape of the turbine building 1, the scale of the turbine building 1, the surrounding environment, etc.
In the preparation process, as shown in FIGS. 4A to 4C, the foundation 2 of the turbine building 1 is constructed. The foundation 2 of this embodiment is a so-called solid foundation. The foundation 2 is formed by placing necessary reinforcing bars on the ground and installing a formwork and placing concrete inside the formwork. In addition, the construction method of the foundation 2 is not limited. Moreover, the structure of the foundation 2 is not limited, For example, a pile foundation may be sufficient.

  In the preparation step, the work yard 6 is formed by assembling the gantry on the front side (lower side in FIG. 4A) of the planned construction site (foundation 2) of the turbine building 1. In the present embodiment, a part of the work yard 6 protrudes above the foundation 2. The gantry is formed by combining a steel frame and a lining plate. The structure of the gantry is not limited. The gantry may be formed as necessary. Moreover, the work yard 6 is not limited to the front side of the turbine building 1, and may be formed on the rear side (upper side in FIG. 4A) or the side surface. Further, the work yard 6 may be formed at a plurality of locations, or the turbine building 1 may be formed so as to surround the entire circumference. The shape of the work yard 6 is not limited.

  When the foundation 2 is constructed, the lower pillar 31 of the concrete mount 3 is formed. The lower layer pillar 31 of the present embodiment is rectangular in plan view, but the cross-sectional shape of the lower layer pillar 31 is not limited. In the present embodiment, two lower columns 31 are formed in two rows (14 in total). In addition, the number and arrangement | positioning of the lower layer pillar 31 are not limited, What is necessary is just to determine suitably according to the shape of the concrete mount 3. FIG. The lower pillar 31 may be constructed in parallel with the construction of the foundation 2. That is, the concrete of the lower pillar 31 may be placed simultaneously with the concrete of the foundation 2.

In the first step, as shown in FIGS. 5A and 5B, the steel frame 4 and the steel roof 5 in the first work area A1 are constructed, and the lower beams 32 in the ninth work area A9 and the tenth work area A10 are provided. To construct. The lower beam 32 is formed on the lower column 31.
Construction of the first work area A1 uses a luffing crane (ruffing tower crane) M1 disposed in the work yard 6, as shown in FIGS. 5 (a) and 6 (a). The luffing crane M1 is installed at the right end of the work yard 6. On the other hand, the construction of the concrete mount 3 (the lower beam 32 of the ninth work section A9 and the tenth work section A10) uses a crawler crane M2 disposed in the work yard 6, as shown in FIG. At this time, the crawler crane M2 is installed in a portion of the work yard 6 that protrudes to the seventh work area A7. In this embodiment, the third crane M3 is used in the work yard 6 to arrange the materials and the like carried into the work yard 6 at predetermined positions (around the luffing crane M1 and the crawler crane M2). For example, a crawler crane may be used as the third crane M3.

Here, the luffing crane M1 is a mobile crane larger than the crawler crane M2, and has a boom (post) and a jib provided at the upper end of the boom. The boom can be tilted with respect to the vehicle body, and the jib can be tilted with respect to the boom. The luffing crane M1 has an operating range in which the rear side portion (first working area A1 to third working area A3) of the turbine building 1 can be constructed from the work yard 6 on the near side of the turbine building 1.
In this embodiment, the construction of the steel frame 4 and the steel roof 5 and the construction of the concrete frame 3 are performed using two cranes (a luffing crane M1 and a crawler crane M2). You may carry out with one crane and may carry out with three or more clays. Moreover, the crane used for construction of the steel frame 4 and the steel roof 5 is not limited to the luffing crane M1, and for example, a crawler crane may be used. Further, a fixed tower crane may be used instead of the mobile crane.

  In the second step, as shown in FIGS. 7A and 7B, the steel frame 4 and the steel roof 5 in the second work area A2 are constructed, and the lower beams 32 in the ninth work area A9 and the tenth work area A10 are constructed. Carry out curing. The construction of the second work area A2 uses a luffing crane M1 disposed in the work yard 6. In addition, the crane used for construction of 2nd construction area A2 is not limited, For example, you may use the crawler crane M2.

In the third step, as shown in FIGS. 8A and 8B, the steel frame 4 and the steel roof 5 in the third work area A3 are constructed, and the lower beam 32 and the ninth work area A9 in the eighth work area A8. The upper layer pillar 33 is constructed. The upper layer pillar 33 is erected on the lower layer beam 32.
The construction of the third work area A3 uses a luffing crane M1 disposed in the work yard 6. At this time, the luffing crane M1 is installed near the center of the work yard 6. The arrangement of the luffing crane M1 is not limited. Moreover, the crane used for construction of 3rd work area A3 is not limited to the luffing crane M1.
On the other hand, construction of the concrete mount 3 (the lower beam 32 of the mount right work section A31 and the upper column 33 of the mount middle work section A32) uses a crawler crane M2 disposed in the work yard 6. At this time, the crawler crane M <b> 2 is installed on a portion of the work yard 6 that protrudes to the sixth work area A <b> 6. In addition, the crane used for construction of the concrete mount 3 is not limited to the crawler crane M2.

In the fourth step, as shown in FIGS. 9A and 9B, the steel frame 4 and the steel roof 5 in the fourth work area A4, the lower part of the steel frame 4 in the sixth work area A6 (frame lower part 44), the tenth. The upper layer pillar 33 of the construction area A10 is constructed. Construction of the steel frame 4 in the fourth work area A4 and the frame lower part 44 in the sixth work area A6 uses a luffing crane M1 disposed in the work yard 6. At this time, the luffing crane M <b> 1 is installed at the right end of the work yard 6. Prior to the construction of the steel frame 4 in the sixth work area A6, the gantry overhanging the sixth work area A6 is removed. The arrangement of the luffing crane M1 is not limited. Moreover, the crane used for construction of the steel frame 4 is not limited to the luffing crane M1.
On the other hand, the construction of the concrete mount 3 (the upper column 33 of the tenth work area A10) uses the crawler crane M2 disposed in the work yard 6. At this time, the crawler crane M <b> 2 is installed at a portion of the work yard 6 that projects to the seventh work area A <b> 7, so that the crawler crane M <b> 2 works at a position close to the concrete mount 3. In addition, the crane used for construction of the concrete mount 3 is not limited to the crawler crane M2.

  In the fifth step, as shown in FIGS. 10A and 10B, the steel frame 4 and the steel roof 5 in the fifth work area A5, the frame lower part 44 of the steel frame 4 in the seventh work area A7, and the eighth work area A8. The upper layer pillar 33 is constructed. In the fifth step, the luffing crane M1 disposed in the work yard 6 is used. At this time, the luffing crane M1 is installed near the center of the work yard 6. Prior to the construction of the steel frame 4 in the seventh work area A7, the gantry overhanging the seventh work area A7 is removed. If the steel roof 5 of the range except the upper part of the concrete mount 3 and the 6th work area A6 and the 7th work area A7 is joined by the 5th process, a steel frame construction and a roof work will be interrupted. The arrangement of the luffing crane M1 is not limited. The crane used in the fifth step is not limited to the luffing crane M1. Furthermore, you may use a some crane in the construction in a 5th process.

In the sixth step, as shown in FIGS. 11A and 11B, the upper beam 34 of the concrete gantry 3 is constructed. The upper-layer beam 34 is horizontally mounted on the upper-layer column 33. When the upper beam 34 is formed, a slab (not shown) is constructed. In the sixth step, the luffing crane M1 disposed in the work yard 6 is used. At this time, the luffing crane M1 is installed near the center of the work yard 6. The arrangement of the luffing crane M1 is not limited. The crane used in the sixth step is not limited to the luffing crane M1. Furthermore, a plurality of cranes may be used in the construction in the sixth step.
In the sixth step, the upper part on the front side of the steel frame 4 is open and the upper part of the concrete frame 3 (the eighth work area A8 to the tenth work area A10) is opened, so that the concrete frame 3 is constructed. These materials and the like may be carried into the steel frame from this opening.

In the final step, as shown in FIGS. 12A to 12C, the upper part of the steel frame 4 (the upper frame 45) and the steel roof 5 in the sixth work area A6, the upper frame 45 and the steel roof 5 in the seventh work area A7. And the steel roof 5 of 8th work area A8-10th work area A10 is constructed. In addition, you may start a final process at the time of complete | finishing the operation | work which needs carrying in or carrying out by a crane in the construction of the concrete mount 3. FIG.
In the final process, the luffing crane M1 disposed in the work yard 6 is used. At this time, the luffing crane M1 is installed near the center of the work yard 6. The arrangement of the luffing crane M1 is not limited. Further, the crane used in the final process is not limited to the luffing crane M1. Furthermore, a plurality of cranes may be used in the construction in the final process.

As mentioned above, according to the construction method of the building of this embodiment, since the steel frame 4 and the steel roof 5 are constructed according to the progress of the concrete mount 3, efficient construction is possible. That is, the construction of the concrete gantry 3 and the construction of the steel frame 4 and the steel roof 5 can be carried out simultaneously, including the placement of construction machines such as cranes (roughing crane M1, crawler crane M2, etc.). The workability is excellent due to the construction. Since the construction is advanced simultaneously in the separated work zones, the construction can be advanced without the construction machines interfering with each other.
In addition, since the concrete frame work is prioritized and the different frame works are performed in parallel in a plurality of work zones so that the work ranges do not overlap, the work period can be shortened.

Steel frame 4 starts construction (how to build) from the rear side (rear side) work zone (the work zone opposite to work yard 6 across concrete mount 3), and finally the front side work zone is constructed. And the existing part does not interfere with the construction of other parts.
Further, by projecting a part of the work yard 6 on the foundation 2, the crawler crane M2 can be installed in the vicinity of the concrete gantry 3, so that more efficient construction is possible.
Furthermore, after the construction of the frame lower part 44 in the sixth work area A6 and the seventh work area A7, the luffing crane M1 is used for the construction of the concrete frame 3, so that materials can be carried into the back side of the steel frame structure 4. .

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and the above-described components can be appropriately changed without departing from the spirit of the present invention.
In the above-described embodiment, the construction of the steel roof 5 is performed for each work section in accordance with the construction of the steel frame 4. However, the timing of the roof construction is not limited, for example, the steel frame (steel frame) 4. After completion of construction, construction may be performed on the entire work area.
The shape and the like of the concrete mount 3 are not limited, and may be appropriately designed according to the shape and size of the machine to be mounted.
Similarly, the shape and the like of the steel frame 4 are not limited, and may be appropriately designed according to the shape of the concrete frame 3 and other devices disposed inside.

1 Turbine building (building)
2 Foundation 3 Concrete frame 4 Steel frame 44 Lower frame 45 Upper frame 5 Steel roof 6 Work yard A1 1st work zone (Steel 1st work zone)
A2 Second Zone (Steel 2nd Zone)
A3 3rd work area (Steel 3rd work area)
A4 Fourth Zone (Steel Frame No. 4)
A5 Fifth Work Zone (Steel Frame Fifth Work Zone)
A6 6th work area (6th work area of steel frame)
A7 7th work area (7th work area of steel frame)
A8 8th work zone (right base work zone)
A9 9th industrial zone (mounting zone middle industrial zone)
A10 Tenth Work Zone (Stand Left Work Zone)
M1 luffing crane M2 crawler crane

Claims (5)

Concrete frame construction to build a concrete mount;
Steel frame construction to construct a steel frame surrounding the concrete frame;
A roof construction method for constructing a steel roof to be joined to the steel frame, and a building construction method comprising:
In the steel frame construction, the steel frame is divided into a plurality of work zones in a plane, and in parallel with the concrete frame work, the building is performed in order for each of the work zones,
The building construction method, wherein the roof construction is interrupted when the steel roof in a predetermined range excluding the upper part of the concrete mount is joined, and is resumed after the concrete frame construction is finished. The steel frame is divided into a steel work area on the back side, a steel work area on the right and left sides, and a steel work area on the near side, with the concrete frame as the center,
2. The construction of the steel frame according to claim 1, wherein the steel frame is constructed by starting a construction method from the steel work area on the back side using a luffing crane and finally constructing the steel work area on the near side. Building construction method.   The steel frame work and the roof work are performed by giving priority to the concrete frame work until the predetermined range of the steel roof except the upper part of the concrete frame is joined, so that the work range of different types of frame work can be reduced. The building construction method according to claim 1, wherein the building is adjusted so as not to overlap. The steel frame is centered on the concrete frame, the first steel frame on the right side, the second steel frame on the back center side, the third steel frame on the left side, the fourth steel zone on the right side and the front right side, the left side and the front side. It is divided into the 5th work area on the left, the 6th work area on the right side of the front center, and the 7th work area on the left side of the front center.
A first step of constructing the first steelwork zone,
A second step of constructing the second steel frame,
A third step of constructing the third steelwork zone,
A fourth step of constructing a lower part of the steel structure No. 4 and the steel structure No. 6; and
A fifth step of constructing a lower part of the steel frame No. 5 and the steel frame No. 7;
The building construction method according to claim 1, comprising an upper part of the sixth steel work section, an upper part of the seventh steel work area, and a final step of constructing the steel roof. The concrete frame is divided into a frame right work zone, a frame middle work zone and a frame left work zone,
In the first step, construct the lower beam of the left frame of the gantry and the middle zone of the gantry,
In the third step, construct the lower beam of the right frame of the gantry and the pillar of the middle hang of the gantry,
In the fourth step, the pillar of the left frame of the gantry is constructed,
In the fifth step, the pillar of the gantry right work zone is constructed,
The building construction method according to claim 4, further comprising a sixth step of constructing an upper beam of the concrete mount before the final step.

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