JPH08184207A - Construction method of power plant by using overhead crane in advance - Google Patents

Abstract

(57) [Summary] [Purpose] To streamline the construction of thermal power, turbines in the nuclear power plant turbine building, and generator areas by allowing the overhead traveling crane to operate early and allowing the product pickup position to have a margin. Provide a construction method. [Composition] Turbine building 50 for thermal power and nuclear power plants
Is a steel frame structure or a steel frame reinforced concrete structure, and the steel frame column 12, the steel frame beam 13, and the overhead crane 17 are built in advance so that the product can be operated early. By installing the hydraulic lifter 85 capable of traveling on the outer peripheral portion of the turbine building 50, the product 63 can be carried into the building from any position on the outer periphery of the building. [Effect] (1) Reduction of temporary equipment related to loading and installation. (2) Expanded application range of large-scale blocks and modules. (3) Carrying in and installing mechanical equipment and avoiding the intricacy of construction work. (4) Reduction of installation period of large-scale temporary lifting equipment installed externally. (5) Labor saving on site work. (6) Resolve 3K on-site.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel-framed concrete structure or a steel-framed reinforced concrete structure, and particularly to a thermal power plant characterized by early operation of a overhead traveling crane for installing large products.
Concerning the construction method of the nuclear power plant turbine building.

[0002]

2. Description of the Related Art The recent increase in electric power demand is rapid, and in order to meet the increasing electric power demand, a large number of power generation plants must be newly installed to meet the demand.

However, with regard to hydroelectric power generation, most of the major domestic water systems have already been developed, and it is impossible to newly install a large number of large-scale hydroelectric power plants.

On the other hand, regarding thermal power generation and nuclear power generation,
If a site area large enough to install a power plant can be secured in a place adjacent to the coast, it is possible to construct a new one. Responding to the increase in domestic electricity demand in the future, new thermal power plants and nuclear power plants will be needed. There is no doubt that it will be covered.

The turbine building, which is the main building of a thermal power and nuclear power plant, has a large size, especially a large weight.
Large-scale, heavy-weight products and materials such as condensers, turbines, and generators will be installed in large quantities.

However, the overhead traveling crane, which is installed in a turbine building whose operating range is within these set ranges, has an extremely large lifting capacity, but the operating floor on which the turbine and generator are installed. Since the steel frame structure, which will be constructed after the surface is completed, is ready for operation only after it is completed up to the ceiling level, it could not be used sufficiently for the installation of major large heavy products set in the turbine building. .

Therefore, in order to install heavy equipment and equipment, a temporary large-scale hoisting equipment installed outside the building is used to hang it from the unfinished building roof part, or from the opening provided on the side wall of the building to a transporter or the like. With temporary transportation equipment, and after temporarily hoisting (lifting) to a set level with temporary lifting equipment, use a jack etc. to pull the roller to move to the set position or wait for the overhead crane to start operation. I had no choice but to set it.

As means for solving these problems, Japanese Patent Laid-Open No. 62-159092 "Building construction method for nuclear power plant" and Japanese Laid-Open Patent Publication No. 62-228974 "Building construction method for nuclear power plant" are known. .

In this known example, when the steel frame of the building of the power plant is assembled and the ceiling crane can be installed, a method of carrying in and installing the constituent products of the power plant into the building using the ceiling crane is described. It has been adopted so that the overhead crane, which is installed as the main building in the building, can be used early in the construction of the power plant.

[0010]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention JP-A-62-159092,
In Japanese Patent Laid-Open No. 62-228974, it becomes difficult to carry in from the carry-in port installed in the building when the unit for carrying in the components of the power plant becomes larger due to modularization of the products.

Further, in those conventional construction methods,
The product can be loaded only from the extension side of the traveling direction of the overhead crane (longitudinal direction of the rail for traveling), and there is no description of an efficient method of carrying the product by loading it from the other direction.

Therefore, a first object of the present invention is to use an overhead crane, which is installed in a power station as a main installation, at the time of construction of the power station, and to easily carry it into the building even if the component product of the power station is large. , The second purpose is to use the overhead crane that is installed in the power plant as a main installation at the time of construction of the power plant to carry in the components of the power plant from different directions of the power plant building to achieve efficient transportation. The third purpose is to efficiently carry the power plant constituent products into the building when constructing a plurality of power plants.

[0013]

The first means for achieving the first object of the present invention is to install a power plant having a building made of steel frame and concrete in the building as main equipment of the power plant. Using a ceiling crane before the completion of the building, in a construction method, except the steel beam of the building existing in the carry-in route of the product installed in the building and interfering with the ceiling crane and the product Assembling a steel frame, then suspending the product with the overhead crane and carrying it into the building along the carry-in route, and after the carry-in, assembling the removed steel beam to the originally desired position of the assembled steel frame. Is a construction method of a power plant by the prior use of an overhead crane, and a second means for achieving the second object of the present invention is a construction method having a building made of steel and concrete. In the construction method of using a ceiling crane installed in the building as a permanent installation of a power plant before the completion of the building, in a construction method, a carry-in route of a product installed in the building is defined as Set in a direction orthogonal to the traveling direction, the product installed in the building from the direction is carried into the cargo handling range of the overhead crane, and the carried product is hoisted by the overhead crane and transported to a desired position. A construction method of a power plant by prior use of an overhead crane, characterized in that the third means is the second means, which is present in the carry-in route of the product installed in the building, and is the overhead crane and the product. Assembling the steel frame except for the steel beams of the building that interfere, then suspending the product with the overhead crane and into the building along the carry-in route It is a construction method of a power plant by prior use of an overhead crane, characterized in that the removed steel frame beam is assembled into the originally assembled position of the assembled steel frame after the loading and carrying in, and the fourth means is also a steel frame. In the construction method, a power plant having a building made of concrete and concrete is constructed by using an overhead crane installed as the main equipment of the power plant in the building before the completion of the building, and in the ground level around the building. The traveling surface passed above the excavation part around the building is provided along one side of the building and the other side continuous with the one side, and is provided on the one side of the building and the other side continuous with the one side. The running surface is crossed over to any one of the product carry-in ports and the ground leveling section around the building, and the constituent products of the power plant are built in the building from the ground leveling section around the building across the running surface. The ceiling It is a construction method of a power plant by prior use of an overhead crane, which is characterized in that it is carried to a position where it can be lifted by a crane, and the component products of the power station that have been carried in are lifted by the overhead crane and transported to a desired position. Similarly, in the fifth means, in the fourth means, the width of the traveling surface is made narrower than the width of the excavation portion around the building, and the traveling surface is supported rotatably in the vertical and horizontal directions, and then the traveling surface. When moving, move the running surface upwards above the running height and move it 90 degrees.
Rotation, then move it to the desired carry-in port, and then lower the traveling surface to the traveling use height so that the end of the traveling surface can be supported by the building and the ground leveling area around the building. A construction method of a power plant by prior use of an overhead crane, characterized in that the constituent products of the power plant are then brought into the building from the ground leveling section around the building, across the traveling surface. 6th to achieve the 3rd purpose of
Means, a power plant having a building made of steel and concrete, using a ceiling crane installed as a permanent installation of the power plant in the building before the completion of the building, in the construction method, to build the power plant When constructing multiple adjacent power plants, install overhead traveling cranes and rails for running them in each building before building completion so that it is possible to board each building of multiple power plants. By retracting the rails, the overhead traveling crane moves between both power stations as needed, and the overhead crane is used to unload the power station component products and carry them to the product setting position. The construction method of a power plant by using the overhead crane in advance is characterized by setting, and the seventh means is the sixth means in the same way. By using the overhead crane in advance, which is characterized by loading and setting the power plant component products from the common unloading location to the set position of the power plant component products by installing it in a place located between adjacent buildings. This is the construction method for the power plant.

[0014]

According to the first means, a large product is carried into the building with the steel frame of the power plant building assembled and transported by the ceiling crane, and the building steel frame that interferes with the ceiling crane and the large product on the transportation route. Since the beams are not assembled in advance, it is easy to carry the large products into the building and to transport the large products with an overhead crane.The steel beams that have not been assembled in advance after the loading and transportation are installed in the building. The effect is that the assembly of the steel frame of the building is completed.

According to the second means, since the building of the power plant is long in the traveling direction of the overhead crane, the power plant constituent products can be carried in from the direction orthogonal to the longitudinal direction and transported by the overhead crane, and installed from the loading position. The effect of shortening the path to the position is obtained.

According to the third means, in addition to the function of the second means, a large product is carried into the building with the steel frame of the power plant building assembled and transported by an overhead crane, and the overhead crane is used along the transportation route. Since the building steel beams that interfere with the product and its large products are not assembled in advance, it is easy to carry the large products into the building and to transport the large products with an overhead crane, and to preassemble them after carrying in and shipping. The steel beams that did not exist will be assembled into the building, and the effect of completing the assembly of the steel frame of the building will be obtained.

According to the fourth means, the traveling surface is moved to the carrying-in port which is convenient for the work of bringing the constituent products of the power plant into the building, and is aligned, and the power plant which has been carried in across the traveling surface is brought in. The function of hoisting the component product by the overhead crane and transporting it to a desired position is obtained.

According to the fifth means, in addition to the function of the fourth means, the traveling surface is supported by the building and the leveled ground during use, and is stable, so that the loading work of the power plant constituent products is stable. , When moving the traveling surface, lift the traveling surface higher than the working height and rotate it by 90 degrees, so that the width direction of the traveling surface is aligned with the width direction of the excavation part, and an interference accident occurs when the traveling surface is moved. It is possible to move the traveling surface to a convenient carry-in entrance while preventing it, rotate it 90 degrees at the destination and lift it down so that the traveling surface can be received by the building and the leveled ground. can get.

According to the sixth means, the overhead traveling crane is
If necessary, it can be moved between two or more power plants and used for power plant construction work, which has the effect of performing efficient construction work to construct multiple power plants that are adjacent to each other. .

According to the seventh means, in addition to the function of the sixth means, when a large number of power plants are constructed on a small number of sites by providing a common cargo collecting place, the common cargo collecting place can be used by a plurality of power plants. The effect is to receive the power station component products from the company, carry them in with an overhead crane, and set them in the installation position.

[0021]

Embodiments of the present invention will be described below with reference to the drawings.

First, an outline of a construction procedure of a power plant building to which the present invention is applied will be described.

The known nuclear power plant turbine building has a reinforced concrete construction, but the construction method of the present invention for operating the overhead crane early enables the rooftop area to be utilized early in the construction. Since the effect will be large, the building structure will be a steel-framed concrete structure or a steel-framed reinforced concrete structure.

The example of FIG. 1 shows a nuclear power plant turbine building 5
0 shows an example of the case where the present invention is applied, showing the situation of steel frame assembly in the initial stage of construction.

The turbine building of a thermal power and nuclear power plant constructed by utilizing the present invention has a base concrete portion 1 of the building.
Reference numeral 1 is a reinforced concrete structure (RC structure), which is completed by an ordinary method.

However, the pillars and beams necessary for setting the rail 16 for traveling the overhead crane are made of steel concrete (SC) or steel reinforced concrete (SR).
(C structure), after setting the concrete 11 of the foundation part of the building, a steel frame member is used to construct a steel frame structure up to the roof part of the building.

The steel frame assembly work is carried out in the turbine building 50.
It will be carried out prior to the other construction work of.

To assemble the steel frame, the steel frame members are lifted using a tower crane 31 installed outside the building,
Set in place.

After the completion, the range of assembling the steel frame is such that, after the completion, the steel frame pillar material 12 embedded in the main pillar forming the frame structure supporting the installation portion of the turbine and the generator, and the ceiling or floor of each floor Steel beam member 13 forming a beam for supporting
Of the above, it is the part that excludes the area used as the loading opening during the construction period.

The space (a) in FIG. 3 is used as a transportation path and a loading opening for the power plant constituent products.

Spaces B, C, and D shown in FIG. 4 are required after the transportation of the power station component products without being assembled at the time of assembling the steel frame so that the steel beam 13 does not exist as the transportation route and the loading opening of the power station component products. The steel beam 13 is attached to the steel column 12 with respect to this portion. For the assembly,
The same applies to the carry-in opening related to the space A in FIG.

If the rail 16 for traveling the overhead crane is installed on the steel frame when the steel frame is assembled, the main body 17 of the overhead traveling crane can be directly carried in before the installation of the truss structure 15 on the ceiling by using the lifting machine outside the building. However, it is also possible to set it.

Truss structure 15 constituting the roof portion of the ceiling
2 shows a situation in which the overhead traveling crane is suspended by using a lifting machine (tower crane 31) installed outside the building before setting.

As the large-sized lifting machine installed outside the building, in addition to the tower crane 31, a ground-moving crane, a floating crane, etc. can be considered.

3 and 4 show the situation where the steel frame portion of the turbine building 50 of the nuclear power plant is completed up to the ceiling level.

At this point, the area where the construction is completed is the steel column 12 and the steel beam 13 constituting the building other than the place where the large material and the product 62 are carried in, the stairs 41, and the main ceiling traveling installed in the building. It is a crane operating rail 16.

Also, the setting of the overhead traveling crane main body 17 has already been completed.

Before the operation of the overhead traveling crane 17,
As a power source for operating the overhead crane, if a permanently installed power facility cannot be operated, a temporary power source for construction is used instead.

The power supply for operating the overhead crane is switched to supply from the permanently installed power supply facility at the start of operation of the permanently installed power supply facility.

The construction of the ceiling of the turbine building 50 is influenced by the plan of bringing in the products 62 and the materials into the building using other lifting equipment.

If the lifter equipment installed outside the turbine building 150 is used, the product 6 inside the turbine building 50
2. If it is not necessary to consider the material loading, the roof truss 15 of the turbine building 50 is constructed and the turbine building 5
Complete the 0 roof.

In the construction method for early operation of the overhead traveling crane of the present invention, various products 6 installed in the building
2 and materials are within the operating range of the overhead traveling crane 17,
Transport it to the unloading area by transportation such as a trailer, truck, and transporter 35, and use the overhead traveling crane 17
It is desirable to be able to hoist at.

In FIG. 5, the product 6 is produced by the transporter 35.
2 is transported to a position below the operating range of the overhead traveling crane 17 inside the turbine building and is lifted by the overhead crane 17.

However, the overhead crane 1 inside the building
Under the operating range of 7, construction is often complicated,
It may be difficult for a large transportation facility such as the transporter 35 to enter.

Further, in order to enter a large-scale transportation facility into the turbine building 50 under construction, it is necessary to get over the excavation portion provided on the outer periphery of the building and carry it into the building interior. It is necessary to install it on the approach route of transportation equipment.

As a solution to the above-mentioned problem, it is conceivable to provide a place for picking up the products 62 and materials on an extension in the direction of the overhead traveling crane rail 16.

In this case, a temporary steel frame member 92 for supporting the overhead traveling crane operating rail 16 of the turbine building 50 is set, and the overhead crane traveling rail 16 is provided thereon.
By installing an overhead traveling crane so that it can be loaded into the unloading area, it is possible to build goods to be delivered to the building that has been transported to the unloading area by transportation means such as a trailer, truck, or transporter 35. It is possible to set the outdoor unloading area within the operating range of the overhead traveling crane 17.

During the construction of the plant, the rails of the overhead traveling crane are extended to the loading area outside the building under construction by using temporary steel beams, and the overhead traveling crane 17
If it is made possible to get into the pick-up area, the goods transported to the building that have been transported to the cargo pick-up area by transportation means such as a trailer, truck, transporter 35, etc. can be directly lifted by the overhead traveling crane 17 to the product loading position It is possible to directly carry in and install.

FIG. 6 shows a situation in which the rail 16 of the overhead traveling crane is extended to the outside of the turbine building 50 so that the product 62 and the material 61 can be lifted.

FIG. 7 shows an example of a method of extending the overhead traveling crane rail 16 to the outdoor portion of the turbine building.

The rail 16 for traveling the overhead crane is set on the steel beam 13 which constitutes the turbine building, but a bolt 55 is made by using a steel transfer iron at a position where the steel beam 13 is extended.
Tighten and fix, and fix to the steel beam 13 on the turbine building body side.

In the example of FIG. 7, only the steel beams for setting the overhead traveling crane are jointed with the bolts 55, but the rail 16 of the overhead traveling crane can also be jointed if necessary.

When the unloading work in the unloading area outside the turbine building by the overhead traveling crane 17 is completed, the steel beam and the overhead traveling crane rail 1 extended to the outdoor area.
Remove the bolts from the extension of 6 to the outside of the building.

Further, even after the construction of the turbine building 50 is completed, when the extension crane rail is used at the time of the periodic inspection, the steel beam and the overhead crane traveling rail 16 to the outside of the building are not removed, It may be installed permanently.

In the case of a nuclear power plant, two plants of the same type are often constructed as a twin implant sharing some facilities.

At the time of construction of the twin implants, the steel frame up to the ceiling frame which is set over both of the two plants and the rail 16 of the overhead traveling crane installed for both plants can be loaded into the twin implants. If you pull it in like this, the overhead traveling crane 17 installed one for each plant as needed,
Move between both implants as needed to complete product 6
It is possible to carry out the loading of 2, the loading to the set position, and the setting.

Further, if a loading area common to the two plants is provided at a place located in the middle of the twin implant,
The large-size carry-in port 56 is common to the twin implants, so that the product 62 can be directly carried in from the common unloading area and installed.

FIG. 8 shows a situation in which the product 62 is hoisted by the overhead crane 17 from the loading area provided in the middle of the twin implant.

By the way, in the construction work of a thermal power plant and a nuclear power plant, in order to satisfy the requirements such as the seismic strength, the construction is carried out in a state in which the building construction range and the building periphery are excavated to the level of the lowest floor.

The excavation range 81 around the building is backfilled to the same level as the leveled ground 82 at the time of the completion of the construction, but the products 62 and the materials are not carried in during the construction over the excavation range 81 around the building. Must be done.

Therefore, the excavation area 81 around the building exterior is leveled, the lifter operating rail 86 is installed, and the lifter 85 is run on it.

This lifter is utilized as a boarding platform (a traveling surface of a freight vehicle such as the transporter 35), and when the product 62 and materials are carried in, the lifter 85 is passed over the trailer, truck, transporter 35, etc. Carry it in below the operating area of the overhead traveling crane 17 in the loaded state and lift it using the overhead traveling crane 17.
Move to the final installation position.

FIG. 9 shows a portion below the ceiling truss of the turbine building under construction. A in FIG. 9 indicates a condition where the transporter 35 having the product 62 is mounted on the lifter 85. is there.

Further, B in FIG. 9 shows a state in which the transporter 35 loaded with the products 62 has moved to the operation area of the overhead traveling crane 17.

Further, the pedestal portion 87 of the lifter 85 can be adjusted in the vertical direction by utilizing the hydraulic mechanism 88, and when the product 62 is on the pedestal portion 87 of the lifter or is passing therethrough. There is a lifter mount 87
Of the lifter pedestal part 8 by lowering the level of the lifter so that it is on the leveled ground 82 around the building and the building components.
7 can ensure stability.

This state is shown in FIG.

When moving the lifter 85, the hydraulic mechanism 88 is used to raise the level of the lifter base portion 87, and the lifter base portion 87 is rotated by 90 degrees, whereby the ground leveling 82 around the building outdoor portion is adjusted. After moving in a state where it is not in contact with the building components, the vehicle travels on the lifter operating rail 86 and moves.

This state is shown in FIG.

The base portion 87 of the lifter 85 and the hydraulic mechanism 8
8 (as an example, hydraulic cylinder equipment), a thrust bearing is interposed, and the pedestal portion 87 is horizontally rotatable by the thrust bearing.

If the product 86 and the lifter 85 for carrying in materials can be moved to any position along the outer wall of the turbine building 50, the transportation equipment such as the trailer, the transporter 35, and the truck can be installed anywhere on the outside of the building. From here, it becomes possible to carry the product 62 and materials into the turbine building.

Further, even when the product 62 cannot be carried into the turbine building 50 through the lifter 85, the product 62 is carried to the lifter which has moved to a position below the operation area of the overhead crane by using transportation equipment such as the transporter 35. As a result, the product 62 can be loaded by the overhead crane 17.

FIG. 12 shows a state in which the product 62 is lifted on the lifter 85 which has moved to a position below the overhead crane operating area.

Lifter 85 for carrying in the above products and materials
However, when moving around the outer peripheral portion of the turbine building 50 under construction, a turntable 89 into which the lifter operation rail 86 can enter is installed in the corner portion of the turbine building outdoor wall, and the lifter 85 is installed in the turbine building 50. The same lifter 85 can be accessed from a plurality of wall surfaces of the turbine building 50 by allowing the corner portion of the outer wall to turn at a right angle of 90 degrees.

As described above, the operating range of the overhead crane 17 is advanced and the range of applicable products is expanded.

As a result, the work of loading products and materials, which was conventionally carried out using the temporary lifting machine installed outside the turbine building 50, is structurally stable, and a large-capacity permanent installation is carried out. The overhead traveling crane 17 can improve the work efficiency and safety.

Further, the temporary cranes installed outside such as the tower crane 31 and the mobile crane have a limited working radius, and the hanging ability sharply decreases as the distance from the crane installation position increases. On the other hand, the overhead traveling crane 17 that is permanently installed has the characteristic of exhibiting the maximum lifting capacity in all the operating ranges.

Therefore, when the overhead traveling crane 17 is utilized, the product 62 picked up at all positions within the operating range of the overhead traveling crane 17 is horizontally moved and moved to another position within the operating range for setting. be able to.

Therefore, the overhead traveling crane 17 is used for the product 62 which cannot be directly carried in because the conventional large-sized lifting machine which is installed outside is out of the range of the lifting capacity.
By using, it is possible to lift, carry in, and set without relying on other equipment such as temporary jacks.

Moreover, since the overhead traveling crane 17 can be set to have a large capacity, it is particularly suitable for carrying in and installing a large number of heavy products 62 installed in a nuclear power plant.

When the present invention is used, a large module product 63 can be assembled and carried in an outdoor yard, so that the range of large blocks and modularization can be expanded, the amount of work on the construction site inside the building can be reduced, and the construction period of the site can be reduced. Expected to be shortened.

FIG. 13 shows a situation in which the present invention is applied to the loading of a large module product 63. In all the examples, the ceiling is completed early in construction, and the interior of the building is not affected by the weather so much, and a working environment close to the all-weather construction method can be realized.

Further, the overhead traveling crane 17 has a characteristic that it is not easily affected by wind or earthquake because it is a stable structure itself.

From the above, it can be expected that the heavy products to be installed in the turbine building 50 can be carried in, and the installation work efficiency and safety can be improved.

Further, in any of the embodiments, it is not necessary to install a temporary large-sized hoisting machine outside the building for a long period of time during construction, so that the economical efficiency is greatly improved.

Furthermore, in the embodiment of the present invention, (1) the number of temporary equipment related to loading and installing is reduced.

(2) Expansion of application range of large-scale blocks and modules.

(3) Carrying in and installing mechanical equipment and avoiding the intricacy of construction work.

(4) Reduction of installation period of large-scale temporary lifting machine installed externally.

(5) Labor saving on site work.

(6) Elimination of 3K on-site.

It has the following effects.

[0092]

According to the first aspect of the present invention, a large-sized product, which is larger than the conventional one, can be easily carried into the building, so that the range of application of the large-scale block and module can be expanded.

This is effective in shortening the construction period because many components of the power plant can be carried in once.

According to the invention of claim 2, in addition to the effect of the invention of claim 1, efficient construction can be achieved by shortening the indoor transportation route.

According to the invention of claim 3, in addition to the effect of the invention of claim 2, it is possible to shorten the indoor transportation route and carry in large-sized products. Is effective for shortening.

According to the invention of claim 4, it is possible to select a carry-in entrance which is convenient for promoting the construction work among a plurality of carry-in entrances having different carry-in directions to the building, and the construction work can be performed efficiently. , The distribution entrance for the installation and installation of the mechanical equipment and the construction entrance are distributed by using the multiple entrances, and the intricate avoidance between the installation and installation of the mechanical equipment and the construction work is achieved by using the multiple entrances. , The construction period can be accelerated.

According to the invention of claim 5, in addition to the effect of the invention of claim 4, in addition to being able to easily carry in the work from the convenient carry-in entrance by utilizing the traveling surface, when moving the traveling surface. In addition, it is possible to prevent interference with surrounding configurations.

According to the invention of claim 6, it is possible to provide an efficient construction method for constructing a plurality of power plants.

In addition to the effect of the sixth aspect of the present invention, a common loading place can be provided between adjacent buildings of a plurality of power plants to improve the construction efficiency of a plurality of power plants on a small site.

[Brief description of drawings]

FIG. 1 is a building elevation view showing an embodiment of the present invention, showing a state of steel frame assembly at an early stage of construction of a nuclear power plant turbine building.

2 is an embodiment of the present invention, an overhead traveling crane,
FIG. 3 is a building elevation view showing a situation in which a fixed crane 36 installed outside the building is used to suspend the building.

FIG. 3 is a building elevation view showing an embodiment of the present invention, showing a situation in which the steel frame portion of the turbine building of the nuclear power plant is completed up to the ceiling level from the operating direction of the overhead crane.

[Fig. 4] Fig. 4 is an elevation view of the building of the nuclear power plant turbine building showing the situation where the steel frame portion of the turbine building is completed up to the ceiling level in the longitudinal direction of the building, which is an embodiment of the present invention.

FIG. 5 is an example of the present invention, which is a transporter,
An elevation view of the building showing the situation where the product is transported below the operating range of the overhead traveling crane and is being lifted by the overhead traveling crane.

FIG. 6 is a building elevation view showing an embodiment of the present invention and showing a situation in which a rail of an overhead traveling crane is extended to an outdoor portion of a turbine building so that products and materials can be lifted.

FIG. 7 is an enlarged elevation view of a rail end portion showing an example of the method of extending the overhead traveling crane rail to the turbine building outdoor portion according to the embodiment of the present invention.

FIG. 8 is an elevation view of a building showing an example of the present invention, in which a product is being lifted from a loading area provided in the middle of a twin implant.

FIG. 9 is an embodiment of the present invention, and shows a situation of looking down from a ceiling truss of a turbine building under construction. In the figure, A shows a transporter loaded with products on a lifter. Also, B in the figure is a plan view of the building showing a state where the transporter loaded with the products has moved to the operation area of the overhead traveling crane.

FIG. 10 is an elevational view of the building showing the embodiment of the present invention and showing a state in which the level of the lifter base is lowered, and the lifter mount is mounted on the ground level and the building components of the outer perimeter of the building.

FIG. 11 is an embodiment of the present invention, in which a hydraulic mechanism is used to raise the level of the lifter cradle part and the lifter cradle part is rotated by 90 degrees, thereby forming a leveled ground around the outdoor building and building components. A building elevation view showing a situation where the building is not in contact.

FIG. 12 is an elevation view of a building showing an embodiment of the present invention, showing a state where a product is lifted from above a lifter that has moved to a position below an operating area of an overhead crane.

FIG. 13 is a building elevation view showing an embodiment of the present invention and showing a situation in which the present invention is adopted for carrying in a large-sized module product.

[Explanation of symbols]

11 ... Concrete of power plant building foundation, 12 ...
Steel column members, 13 ... Steel beam members, 15 ... Truss structure for thickening the turbine building ceiling, 16 ... Rails of the main overhead traveling crane installed in the plant building, 17 ... Overhead traveling crane, 31 ... Outside the building range The temporary tower crane installed at No. 41, stairs, 50 ... turbine building of nuclear power plant, 55 ... bolts, 62 ... product, 63 ... large module product, 81 ... excavation range around turbine building, 82 ... adjustment around turbine building Ground, 83 ... Condenser, 85 ... Lifter,
86 ... Rails for operating lifters, 87 ... Lifter frame parts, 88 ... Hydraulic mechanism for changing the level of lifter frame parts, 91 ... Temporary gantry, 92 ... Steel members for supporting overhead traveling crane rails .

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Koichi Gota 3-1-1, Saiwaicho, Hitachi-shi, Ibaraki Hitachi Ltd. Hitachi factory (72) Inventor Akinori Tajiri 3-chome, Saiwaicho, Hitachi, Ibaraki No. 1 Hitachi Ltd., Hitachi Works (72) Inventor Naoto Yoshida 3-1-1, Sachimachi, Hitachi, Ibaraki Hitachi Ltd. (72) Inventor, Hitachi, Ltd. Sakae Ebata Hitachi City, Ibaraki Prefecture 3-1, 1-1 Machi, Hitachi, Ltd. Hitachi factory (72) Inventor Tatsuo Makita 1-1-14, Kanda, Chiyoda-ku, Tokyo Hirate Plant Construction Co., Ltd. (72) Inventor Keiya Sato Tokyo 1-11-14 Kanda, Chiyoda-ku, Tokyo Inside Hiritsubishi Construction Co., Ltd.

Claims (7)

[Claims] 1. A construction method for constructing a power plant having a building made of steel frame and concrete by using an overhead crane installed in the building as main equipment of the power plant before completion of the building. Assemble the steel frame except the steel beam of the building that interferes with the ceiling crane and the product existing in the carry-in route of the product installed indoors, and then hang the product with the ceiling crane along the carry-in route. A construction method of a power plant by prior use of an overhead crane, characterized in that the steel beam, which has been removed, is assembled to a proper position of the assembled steel frame after being carried into the building. 2. A construction method for constructing a power plant having a building made of steel and concrete by using an overhead crane installed in the building as main equipment of the power plant before completion of the building. The loading path of the product installed indoors is set to the direction orthogonal to the traveling direction of the overhead crane, the product installed in the building from the direction is loaded into the cargo handling range of the overhead crane, and the loaded product. A method of constructing a power plant by prior use of an overhead crane, characterized in that the above crane is lifted by the overhead crane and transported to a desired position. 3. The steel frame according to claim 2, wherein the steel frame is assembled except for the steel beam of the building existing in the carry-in route of the product installed in the building and interfering with the ceiling crane and the product, and then the ceiling. Preliminary use of an overhead crane characterized in that the product is hung by a crane and carried into the building along the carry-in route, and after the carry-in, the removed steel frame beam is assembled to a position where the assembled steel frame should originally be. Construction method of power plant by. 4. A method for constructing a power plant having a building made of steel and concrete by using an overhead crane installed in the building as a permanent installation of the power plant before the completion of the building. And the running surface passed above the excavation part around the building along one side of the building and the other side continuous with the one side to connect the one side of the building and the one side thereof. Cross the running surface to any of the product loading ports provided on the other side and the ground leveling section around the building, and cross the running surface from the ground leveling section around the building into the building. Prior use of an overhead crane characterized in that the product of the power plant is carried to a position where it can be lifted by the overhead crane, and the product of the power plant that has been carried in is lifted by the overhead crane and transported to a desired position. Construction method of the power plant by. 5. The traveling surface according to claim 4, wherein the traveling surface has a width narrower than the width of the excavated portion around the building, and the traveling surface is supported so as to be vertically and horizontally rotatable, and then the traveling surface is moved. When moving it, move the running surface upward above the running height and
It can be rotated 0 degree and then moved to a desired carry-in port, and then the traveling surface can be moved down to the traveling use height so that the end of the traveling surface can be supported by the building and the ground leveling area around the building. A construction method of a power plant using an overhead crane in advance, characterized in that the constituent products of the power plant are carried into the building from the ground leveling section around the building over the traveling surface. 6. A method for constructing a power plant having a building made of steel and concrete by using an overhead crane installed in the building as main equipment of the power plant before completion of the building. When constructing multiple adjacent power stations, install overhead traveling cranes and rails for traveling in each building for multiple power plants before building completion,
By pulling the rails so that each building of multiple power plants can get on each other, the overhead traveling crane can
Advance use of an overhead crane characterized by moving between two or more power stations as needed, unloading the power station component products using an overhead crane, carrying in to the product setting position, and setting Construction method of power plant by. 7. The construction of a power plant according to claim 6, wherein a common unloading place for the plurality of power plants is provided at a place located between adjacent buildings of the plurality of power plants. Carrying in power station component products to the product setting position,
A construction method for a power plant by using the overhead crane in advance, which is characterized by setting.