JP2513376B2 - How to build a building - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building construction method for constructing a structure such as a reactor building or a turbine building prior to installation of a reactor containment vessel or turbine and construction of a frame.

[0002]

2. Description of the Related Art In a reactor building, a turbine building, etc., a building and a containment vessel or the like installed inside the building have conventionally been constructed in a small or large size in a plurality of places around the building. Using a tower crane, a small tower crane is responsible for building materials and other materials for building, and a large tower crane is responsible for the storage container units, etc., while sequentially stacking from the foundation slab side to the roof side. The working environment inside the building is always controlled by the weather until the roof is erected.

In addition, the loading and installation of the equipment on the operation floor and the equipment in the pressure vessel are carried out by using an overhead traveling crane erected under the roof, but in the conventional construction procedure, a building is constructed. Since the overhead traveling crane cannot be installed until the completion of
In reality, it is inevitable that the construction period will be prolonged with the influence of the weather.

Further, various tower cranes and installation jigs of different scales are required depending on the members and materials to be shared, the containment vessel, the pressure vessel, etc., and these tend to be used for a long period of time, so the construction cost tends to increase. It is in.

The present invention was made in view of the problems that such a reactor building has during construction. It is intended to newly propose a construction method for shortening the construction period, reducing the construction cost, and improving the construction environment. is there.

[0006]

[Means for Solving the Problems] According to the present invention, the structure of the building is assembled prior to the frame work and the roof structure is installed to avoid the influence of the weather inside the building, and at the same time the building structure is constructed. By installing an overhead traveling crane, the operating time will be accelerated, the work in the building will be progressed, and the construction period will be shortened.

Also, the number of required cranes is reduced by increasing the operating rate by installing the overhead traveling crane early.
Aim to reduce construction costs.

The structure of the building is composed of core pillars of hollow cross section constructed at four corners on the foundation slab and beams installed between the core pillars facing each other in one direction. A crane girder is laid in parallel, and an overhead traveling crane is installed on it. The core pillar is divided into a plurality of core pillars in the axial direction, and the core pillar units are connected to each other while being stacked.

The crane girders are laid on opposite sides of the beams, supported by support members installed at intervals in the length direction of the beams, and the overhead traveling cranes are installed between the crane girders and run in parallel. It is placed on the rail. The roof frame is erected on the beams after the overhead traveling crane is installed.

[0010] The overhead traveling crane is used for suspending construction materials for a building by installing equipment installed in the building and a unit such as a storage container, as well as being installed prior to the construction of a frame around the frame of the building. It eliminates the need for large tower cranes, pressure vessel installation jigs, and small tower cranes that have been used for building buildings and loading members into the interior of conventional buildings. It enables the assembling of the storage container and the enlargement of the unit, which shortens the process of the skeleton work.

After the installation of the overhead traveling crane, the roof frame is erected prior to the construction of the building frame, so that the working environment in the building is in an all-weather condition, and the construction of the frame and the loading of members are controlled by the weather. The work inside the building will proceed efficiently with the early operation of the overhead traveling crane.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings showing an embodiment.

As shown in FIG. 1, the present invention constructs only the frame of columns and beams prior to the construction of the skeleton of the entire building B and the installation of the storage container, and at the same time, the overhead traveling crane is mounted on this frame.
10 is a method of constructing the roof frame R and the roof frame R to avoid the influence of the weather, and by operating the overhead traveling crane 10 at an early stage, constructing a frame such as a shielding wall, materials, equipment, and a storage container. It is intended to facilitate the work of carrying in the units and the like. Although the example shows the construction of the reactor building, the building B includes various buildings in addition to the turbine building.

The construction procedure will be described with reference to FIGS.

First, as shown in FIG. 2, a leveled concrete M is constructed on the bedrock of the building B.

On this leveled concrete M, a foundation slab F
The core column base unit c ₁ is installed at the four corners of the leveling concrete M prior to that.

Next, as shown in FIG. 3, the core column base unit
While constructing the core pillars C with a hollow cross section on c ₁ , construct the foundation slab F while considering safety so that the work will not be complicated. As shown in the figure, the core pillar C is constructed by including the core pillar leg unit c ₁ and connecting the core pillar units c that are axially divided into a plurality of core pillars while stacking them.

As shown in FIG. 4, the core pillar unit c is made of steel plate concrete or reinforced concrete, in which concrete is filled between parallel steel plates, or a steel structure of truss structure, and the vertically adjacent core pillar units c. , C are connected by bolts or welding depending on the structure, by joints of main bars, or by a combination thereof.

As shown in FIGS. 4 and 5, the core column base unit c ₁ installed on the leveled concrete M is penetrated by the upper and lower main bars 1 embedded in the foundation slab F and arranged. Then, with the main bars 1 arranged, concrete is placed between the steel plates and inside the core column base unit c ₁ as shown in FIG. As shown in FIG. 5, stud bolts 3 are projectingly provided between the steel plates of the core column base unit c ₁ and between the inner and outer peripheries.

FIG. 6 shows the connection between the lowermost core column base unit c ₁ and the foundation slab F. As shown here, the core column base unit c ₁ is located in the foundation slab F. Both slab muscles 1 and 2 are connected by a mechanical joint or the like, and concrete 4 is poured to integrate them.

After the core pillar C is constructed, as shown in FIG. 7, a beam G is installed between the core pillars C and C facing each other in one direction and joined to the core pillars C and C so that the beams G and G face each other. . At this time, the top ends of the core pillar C and the beam G are continuous. Each beam G is unitized similarly to the core pillar unit c, and is composed of parallel beam units G ₁ and G ₁ made of steel plate concrete or the like.

Next, the side surfaces of the beams G, G facing each other, specifically, the side surfaces of the beam units G ₁ , G ₁ facing each other are shown in FIG.
Supporting material 5 for supporting the crane girder 6 as shown in FIG.
Are provided so as to be continuous with the pillar C and the beam unit G ₁ and project at appropriate intervals in the length direction of the beam G. The support member 5 may be preliminarily provided on the beam unit G ₁ and the pillar C before the beam G is installed.

Next, as shown in FIG. 9, crane girders 6, 6 are laid on the supporting members 5, 5 of the respective beams G, G, and the supporting columns 7, 7 for supporting the roof frame R and the adjacent supporting columns 7 are provided. , 7 are connected to the crane girders 6 and 6 so as to stand on the tops of the pillars C and the beams G on both outer sides.

Further, as shown in FIG. 10, parallel traveling rails 9 and 9 traveling above the crane girders 6 and 6 are installed, and a ceiling traveling above the traveling rails 9 and 9 is installed. Install traveling crane 10.

The crane girder 6 is shown in FIG.
As shown in FIG. 8 to FIG. 11, the operation efficiency of the overhead traveling crane 10 at the time of construction is improved by installing two traveling cranes at the upper and lower positions of each beam G and additionally installing a traveling crane for construction work on one of them. Can be increased.

The overhead traveling crane 10 is used not only for loading equipment installed in the building and units for a storage container but also for suspending a shielding wall. With the overhead traveling crane 10, the construction of a skeleton in the building B is possible. It is possible to carry out a plurality of processes in parallel such as assembling the storage container.

After the overhead traveling crane 10 is installed, as shown in FIG. 11, the roof frame R is erected between the supporting columns 7 and the wall plates 8 and 8 facing each other, and the construction of the frame of the building B is completed. The environment inside is in all weather conditions. The roof frame structure R is constituted by, for example, a truss structure as shown in the drawing, and is erected by being preliminarily ground and hoisted, or by hoisting and connecting units divided into appropriate sizes.

During the above steps, starting with the core pillar unit c,
The suspension of each member such as the beam unit G ₁ and the crane girder 6 is performed by a crawler crane or a truck crane installed around the building B.

After the construction of the structure of the building B, the construction of the skeleton such as the shielding wall, the loading and construction of the storage container, and the loading of the equipment and materials are carried out by the overhead traveling crane 10, and a hollow core is provided depending on the situation. The tower crane 11 is assembled on the upper part of the pillar C as shown in FIG. 1 and used. The space inside the core pillar C is utilized for stairs, elevators, shafts for carrying in and out materials, and the like.

12 and 13 show a completed state of the building B in which the shielding wall is constructed and the storage container is assembled.

[0031]

The present invention is as described above. Since the structure of the building is assembled prior to the frame and the overhead traveling crane is installed on the upper part of the structure, the roof frame is installed. It is possible to operate the overhead traveling crane without being affected by the weather, and as a result, it is possible to carry out the skeleton work and the carrying-in of storage containers and equipment in parallel, and the work inside the building is greatly improved. It is possible to reduce the work period by progressing to.

Further, the operation rate is increased by early operation of the overhead traveling crane, it is not necessary to share the crane for each member, the number of cranes can be reduced, and the construction cost can be reduced.

Further, since the overhead traveling crane has a higher lifting capacity than that of the building tower crane, it is possible to increase the size of the unit including the reinforcing bar unit, and to shorten the skeleton construction process.

[Brief description of drawings]

FIG. 1 is a perspective view showing a frame of a reactor building.

FIG. 2 is a perspective view showing a first procedure for constructing a frame.

FIG. 3 is a perspective view showing the next procedure of FIG.

FIG. 4 is a perspective view showing a core column base unit.

FIG. 5 is a cross-sectional view showing how the core column base unit is installed.

FIG. 6 is a sectional view showing how the core column base unit and the foundation slab are joined.

FIG. 7 is a perspective view showing the next procedure of FIG.

FIG. 8 is a perspective view showing the next procedure of FIG.

FIG. 9 is a perspective view showing the next procedure of FIG.

FIG. 10 is a perspective view showing the next procedure of FIG.

FIG. 11 is a perspective view showing the next procedure of FIG.

FIG. 12 is a vertical cross-sectional view showing a completed state of the reactor building.

13 is a cross-sectional view of FIG.

[Explanation of symbols]

B ...... reactor building, C ...... core pillars, c ₁ ...... core column base unit, c ...... core pillars unit, 1 ...... slab muscle, M ...
… Mat slab, F …… Basic slab, 2 …… Slab muscle,
3 ... Stud bolt, 4 ... Concrete, G ...
Beam, G ₁・ ・ ・ Beam unit, 5 ・ ・ ・ Support material, 6 …… Crane girder, 7 …… Pillar, 8 …… Wall plate, 9 …… Travel rail, 10 …… Travel crane, 11 …… Tower crane, R ...
… Roof frame.

Claims (1)

(57) [Claims] 1. A core pillar having a hollow cross-section is constructed by connecting core pillar units, which are divided into a plurality of pieces in the axial direction at the four corners of a foundation slab and are unitized, to each other while stacking the core pillar units. A beam is installed between the core pillars facing each other, and support materials for supporting the crane girder are installed on the opposite sides of the beam at intervals in the length direction of the beam, and the crane girder is laid on this support material. A method for constructing a building, in which a roof traveling frame is placed between the opposing crane girders and parallel traveling rails are installed, and then a roof frame is installed on a beam to construct a building frame.