JPS59158793A - Method of installation of crane in housing - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a method of installing a crane installed inside a nuclear detached building, etc., and in which it is used as a gate-type crane in parallel with the building construction work when the building is installed. This invention relates to an installation method for a crane inside a building that can be used as a lane for overhead foot operations after the building is completed.

[Technical background of the invention]

A conventional method for installing a crane inside a building will be described below with reference to FIGS. 1 to 3, taking as an example a lane for overhead running of a nuclear reactor building in a nuclear power generation facility.

First, once the reactor building l has been completed up to the operation floor 2, the seat wall 3 of the nuclear detached house above the operation floor 2 and the lane foundation 4 for overhead running are constructed, respectively. After that, a running rail 5 is laid on the lane axis 4 for overhead running, and a power feeder 7 for feeding power to ≠Tomi≠Sai for ceiling running is installed on the rail υ surface inside the reactor roof wall 3.

On the other hand, a roof truss 8 is provided at the ceiling part ζ in parallel with or before and after this. At this time, rather than installing all of the roof trusses 8, some of them are left uninstalled in order to secure the space necessary to later suspend the crane girder 9 and trolley 10 from the roof of the reactor building 1. put.

Next, the crane girder 9, which has been assembled in advance on the ground, is suspended from above the ceiling of the reactor building 1 through the space using the lifting equipment used in the construction of the reactor building 1, and the traveling rail 5 Place it on top. Then, the trolley 10 is temporarily suspended and reinstalled on the crane girder 9 using the same method, and the bolt tightening work and electrical work of the crane girder 9 and trolley I710 are performed to complete the overhead running lane 6.

In parallel with or in conjunction with the installation of the overhead running lane 6, the remaining roof truss 8, which was left unattached in order to suspend the crane girder 9 and Toro IJ 10, was installed on the atomic gf building 1 side. , a roof 11 is constructed by pouring concrete on the roof truss 8. The overhead running lane 6 can be reused once after the concrete of the roof 11 is completely dried.

[Problems with background technology]

Conventionally, the overhead traveling lane 6 is installed in this way, but with this method, even if the installation of the overhead traveling crane 6 is completed quickly, the concrete of the M root 11 dries to light and the roof 11 is completed. However, there is a point where the overhead running lane 6 cannot be used until it has enough strength to withstand the vibrations and shocks caused by the operation of the overhead running lane 6. From the completion of the operation floor 2 of the nuclear Fm seat 1 to the reactor building 10
The construction period will be approximately 6 to 8 months until the roof 11 is completed, and during this time it will not be possible to carry and install equipment into the reactor building 1 using the overhead lane 6.

Therefore, conventionally, the reactor brothel wall 3 and the floor above the operation floor 2; ,
Temporary uniform equipment is used instead of overhead lane 6, but it requires assembly and removal of the temporary candlesticks, which lengthens the construction period and increases labor costs. There are endpoints.

[Purpose of the invention]

The present invention was made in view of the current situation, and it is an object of the present invention to provide a construction method for installing an indoor crane, which allows the use of four indoor cranes regardless of the construction work on the building side.

[Summary of the invention]

The present invention, as a means to make it possible to conveniently use the crane inside the building regardless of the construction work on building-j, lays a base rail on the clear surface and attaches and detaches temporary running legs of different vehicle types to both ends of the crane girder. A gantry crane, which can be easily attached and rebuilt, is reinstalled on the base rail, and the transportation of equipment using this gantry crane and the erection and demolition work of Naza are carried out in parallel, and after the building is completed, the above-mentioned It is characterized by removing the temporary running legs of the gate-type crane and installing a crane girder on the running rail to create a lane for overhead running.

[Embodiments of the invention]

One embodiment of the present invention will be described below with reference to FIGS. 4 to 7.

In FIGS. 4 to 6, 16 is a portal crane installed on a traveling rail 13 for a portal crane attached to an embedded plate 12 buried in the operation floor 2 of the reactor building 1, At this time, temporary running legs 14 with running wheels, which have a block structure at the part of the crane girder 9 that enters the treeside area U from both ends of the crane girder 9, are attached to the submerged 0T rudder by tightening bolts. It is being This 2
As shown in FIG. 4, a tortoise line drum 15 for choya is attached to one of the temporarily set rows H14 of the set, and this i@'
The four glands 17 for the supply area are drawn out through the TW drum 15 for a.

In addition, from both temporary rectangular walking legs 14, as shown in FIG.
Two wires 18 are drawn out in the extending direction of the running rail 13, and the ends of each wire 18 are wound around four running winches 19 having the same rating.

By rotating these traveling winches 19,
The gantry crane 16 is configured to travel on a traveling rail 3. Further, on the crane girder 9 of this portal crane 16, a conventional Toro IJ 10 is installed in the width direction of the traveling rail 13.

On the other hand, in the reactor building 11i+Il, as shown in FIG. Lane basics for ceiling running 4. Traveling rail 5゜Storage for feeding 7. Pressure root truss8. 'Construction work on J6 and roof 11 is being carried out step by step. After the roof work has been completed with sufficient concrete on the roof 11, the jack 20 is reinstalled on the lane foundation 4 that runs overhead as shown in Figures 6 and 7. is lifted, the temporary traveling legs 14 and the like are thrown away, and a lane 6 is constructed in which the gate-type crane 16 runs overhead.

Next, the method for installing the crane inside the building will be explained.

First, the embedded plate 1 is placed on the continuous pine cultivation floor 2 of the reactor building l.
Bury 2. At this time, in order to prevent the temporary traveling legs 14 of the portal crane 16 from interfering with the reactor building wall 3 that will be constructed later, an embedded plate 1 is placed a certain distance inside from the atomic PMM tank wall.
Bury 2. Further, the embedding plate 12 is buried so as to be lower than the surface of other parts of the driving operation slope 2.

After embedding the embedding plate 12 to complete the operation floor 1IiJ2, the traveling rail 13 is installed on the embedding plate 12 with bolts.

On the ground, on the other hand, the crane girder 9 is assembled, and temporary traveling legs 14, which have been previously assembled into a block structure by bolting, are bolted near both ends of the crane girder 9 at the same dimensional intervals as the traveling rails 13.

Other than this, the height of the temporary traveling leg 14 is set so that the lower surface of the crane girder 9 is higher than the upper surface of the traveling rail 5 that will be constructed later.

Next, the crane girder 9 to which the temporary running legs 14 are attached is installed on the running rail 13 using the lifting equipment used for the construction of the reactor building 1, and then the trolley lO is lifted by the same method. is lifted and installed on the crane girder 9. 4 installed at the end of the running rail 13.
The running winch 19 of the stand and the temporary running legs 14 are connected to the wire 1.
Connect via 8. Further, a power supply wire drum 15 is attached to one of the temporary running legs 14, the drum 15 is closed, and a temporary power supply wire d17 is laid to perform the construction.

After conducting ventilation tests, etc., the crane 161 of the same type is fed from the temporary 'd source via the power supply wire 17, and the portal crane 16 is operated to carry in and install the dk-a''4. The electric wire drum 15 for the electric wire 15 winds up and rewinds the electric wire 17 for the supply turtle in conjunction with the running of the temporary running legs 14.

On the other hand, the reactor building 1 is located in parallel with the wh of the portal crane 16.
-, as shown in Figure 6g6, the reactor building wall 3, the lane base 4 for running on the ceiling. Traveling rail 5. f@' Turtle embroidery 7.
Roof truss8. And the construction work of press machine 11 will be carried out by r=
will be implemented accordingly.

When the concrete of the roof 11 has sufficiently cured and the roof work is completed, the jacking is installed on the lane foundation 4° above which the roof runs, as shown in FIG. 6, and the gate type crane 16 is lifted.

Next, the temporary power supply wire 17 is connected to the trolley 10 or left in the wiring layer so that the trolley 0 can operate even if the drum 15 of the film forming run F#14 is removed.

The wire 18 between the traveling winch 19 and the temporary traveling leg 14 is also removed. Further, the temporary running legs 14 are disassembled into small block members 21 shown in FIG. 6 by loosening the bolts in the valleys and using the trolley 10 on which wiring is layered.

Once the disassembly of the temporarily set walking leg 14 is completed, the crane girder 9 is reinstalled using jack ribs on the running rail 5 on the lane foundation 4 for overhead running, the temporary power supply wire 17 is removed, and the power supply frame is removed. Perform regular wiring work from step 7. And we will carry out the electric test employment temple.

The travel rail 13 for the portal crane 16 left on the operation floor L1iJ2 is removed from the embedded plate 12) and cut into small blocks. Then, chipping and scattering are performed on the embedded plate 12 in the same way as on other floor surfaces.

In addition, the bolt holes on the lower surface of the crane girder 9, to which the traveling legs 14 were attached, are covered with a pig plate or the like and painted to complete the overhead traveling lane 6 as shown in FIG.

After the overhead running lane 6 is in a normal condition and the body can move, the temporary running legs 14 are disassembled into small block members 21. The traveling rail 13° and the traveling winch 19 are removed from the loading/unloading entrance of the reactor building 1 using the overhead lane 6.

Therefore, the crane within the construction site, that is, the gantry crane 16, can be operated while waiting for the completion of the soil layer from the operational maintenance surface 2 of the reactor building 1.

It is possible to carry out the transport and polishing of the lees and organs in parallel with the construction work of reactor building 1, and to carry out the transport and installation of the 1000 pieces in parallel with the completion of reactor building 1. Compared to the conventional method, the process can be completed 6 to 8 months faster. And in this case, conc IJ of roof 11 =
Even before the roof 11 is sufficiently kept dry, the load support point of the gate type crane 1b is not the atomic Fm building wall 3 but the private splashing floor enclosure 2. There is almost no effect of vibration or impact on concrete, and there is no problem with practical soil.

Further, since the gantry crane 16 is used to carry in and install the equipment, no special lifting equipment is required, unlike the conventional method.

In the above-mentioned embodiment, the explanation has been given using an example of a lane that runs overhead in a nuclear reactor building, but it goes without saying that the present invention can also be applied to a general crane inside a building.

〔Effect of the invention〕

As explained above, the present invention provides a gate-type crane constructed by laying a base rail on the base and removably attaching temporarily set walking legs with wheels to both ends of the crane girder. The crane will be reinstalled on the rail, and the equipment will be transferred using this gantry crane and the building construction work will be carried out in parallel. After the building is completed, the temporary traveling legs of the gantry crane will be removed and the crane girder will be moved to the building side. Since it is installed on the rails and used as an overhead lane, it is possible to operate the crane inside the building and construct the building at the same time. It is.

As a result, it will be possible to significantly shorten the construction period and reduce construction costs.

[Brief explanation of drawings]

Figures 1 to 3 are explanatory diagrams showing the conventional installation method of a crane inside the atomic F building in process J[, Figure 4 is a perspective view showing a portal crane according to the present invention, and Figures 5 to 7 FIG. 1 is an explanatory diagram showing the installation method of a crane inside a nuclear reactor building in order of steps according to the present invention. 1... Reactor building, 2... Operational cropping surface, 3...
Reactor building! , 5.13... Traveling rail, 6... Lane for overhead running, 9... Crane girder, 10...
Trolley, 14...Temporary traveling legs, 16...Gate type crane, addition...Jacket. To the client's agent: Kiyohisa Mata Figure 1, Figure 2, Figure 2, Figure 3, Mine.

Claims (1)

[Scope of Claims] 1. A crane foundation and a running rail are constructed on the roof wall constructed on the base, and a lane running on the running rail is installed, in which an AltI rail is laid on the base. Then, a temporary running leg with wheels was attached to the side end of the crane girder with removable V4, and a gate-type crane to be concentrated was installed on the base rail, and the ridge material was constructed using this gate-type crane. The transfer and the construction work of the KJ Ki building are carried out in parallel, and after the building is completed, the temporary running legs of the gate type crane are removed and the crane girder is installed on the running rail to create a lane for overhead running. 2. The first claim of the patent claim, which is applied to a crane in the reactor building built on the reactor operation floor.
Installation method for in-building cranes as described in section.