JPH0381459A - Construction method for interconnecting duct between buildings - Google Patents

Abstract

PURPOSE:To enhance efficiency in construction, and thereby shorten the term of construction by installing mounting stands for supporting deck plates onto the outer wall of a building which is succeedingly constructed, and thereby performing works within an interconnecting duct at the same time when the building is succeedingly constructed. CONSTITUTION:In a space between a building 1 and a building 2 which are closely constructed, mounting stand backing brackets 25 and 15 for supporting deck plates are installed on the outer wall of the building 2 which is constructed in advance. In the second place, mounting stands 24 and 24 for supporting the deck plates to be used for the construction of an inter-connecting duct 18 between the buildings, are installed onto the outer wall of the building 1 which is succeedingly constructed. And works within the interconnecting duct 18 between the buildings are performed at the same time when the building 1 is succeedingly constructed. This therefore permits double works such as painting works for the outer wall of the building which is succeedingly constructed and the like, and concurrently enables an early handing-over of the interconnecting duct 18.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention provides a method for constructing an inter-building communication duct provided between buildings that are adjacent to each other and constructed in different construction periods. Regarding.

(Prior Art) Regarding the conventional construction method of an inter-building communication duct, Figures 6 to 91 take an example of an inter-building communication duct installed between a reactor building and a turbine building. This will be explained with reference to I.

First, as shown in FIG. 6, the ground is excavated in order to construct the reactor building 1 and the turbine building 2.

At this time, for reasons such as earthquake resistance, the reactor building 1 is excavated until rock that is harder than the turbine building 2 is exposed, and curing concrete is poured.

Regarding turbine building 2, curing concrete was placed before reactor building 1 when the required strength of rock was exposed, and slope 3 was created for excavation of reactor building 1. Artificial rock (hereinafter referred to as MMR) 4 will be placed in the area. Then, the mat 5 of the reactor building 1 and the mat 5 of the turbine building 2 are poured.

Next, as shown in FIG. 7, the reactor building 1 is constructed from the wall 7 of the second basement floor, and the turbine building 2 is constructed from the wall 8 of the first basement floor. Thereafter, when the construction of the basement floor outer wall 9 of the turbine building 2, which will be constructed in advance, is completed, the basement floor outer wall 9 is waterproofed. When the first floor exterior wall 10 is completed, a temporary scaffolding bracket 12 is attached to the first floor exterior wall IO, the exterior wall scaffolding 11 is replaced, and the walls 13 on the second and higher floors are constructed.

On the other hand, when the construction of the basement floor outer wall 14 of the subsequent building 1 is completed, the basement floor outer wall 14 is waterproofed. Next, when the casting of the 111w outer wall 15 is completed, the temporary scaffolding bracket 12 is attached to the first floor outer wall 15, the outer wall scaffolding 11 is replaced, and the second floor wall work 6 is constructed.

As mentioned above, when the waterproofing work on the basement floor outer walls 9 and 14 of the reactor building 1 and turbine building 2 is completed and the replacement of the outer wall scaffolding 11 is completed, the ground level will be buried up to the ground level 17 in parallel with building construction. When this backfilling work is completed and the construction of the building exterior wall is completed, as shown in FIG. 8, the temporary bracket 12 is removed, the building exterior wall is painted, and the exterior wall scaffolding 11 is dismantled.

At this time, the portion of the outer wall of the subsequent reactor building 1 located above the inter-building communication duct 18 is dismantled before the outer wall scaffolding 11 is dismantled in order to construct the inter-building communication duct 18. The floor 19. of the inter-building communication duct 18. wall 2
0. After the ceiling 21 is constructed, the scaffolding is reassembled and the remaining parts are painted.

In this way, after the construction of the inter-building communication duct 18 is completed, the dismantling of the support in the inter-building communication duct 18, painting and curing are completed, and the inter-building communication duct 18 is vacated, the process shown in FIG. 9 is carried out. Construction of piping and cable trays in the inter-building communication duct 18 will begin.

(Problem II to be solved by the invention) As mentioned above, during the construction work of a nuclear power plant, the exterior wall of the reactor building located above the inter-building communication duct is painted so that the ceiling of the inter-building communication duct is painted. After the scaffolding was constructed, it was necessary to reassemble the scaffolding twice, which resulted in additional man-hours.

Furthermore, the inter-building communication duct cannot be constructed until after the outer wall construction of the reactor building and turbine building, which are adjacent to each other and have different construction periods, is completed, so it is difficult to construct the inter-building communication duct, which means that the reactor building and turbine building cannot be constructed until the reactor building and turbine building are evacuated. The completion of piping and cable tray work was delayed because the inter-building communication duct had not been vacated even after the construction work was completed.

For this reason, the timing of constructing the inter-building communication duct became a critical path to the completion of piping and cable tray work, which in turn became a factor that led to the lengthening of the entire nuclear power plant construction period.

The present invention has been made in consideration of the above circumstances, and is intended to eliminate the need for double work on the exterior wall painting work of buildings that are constructed in succession among adjacent buildings with different construction periods. A method of constructing a building connecting duct that can shorten the construction period of a nuclear power plant by reducing the number of man-hours required for building exterior wall painting work and completing piping, cable tray, etc. work early by attempting to surrender the duct early. The purpose is to provide.

[Structure of the invention]

(Means for Solving Problem 11) In order to achieve the above object, the present invention provides a method for constructing an inter-building communication duct disposed between buildings constructed in close proximity to each other. The bracket for supporting the deck plate will be attached to the outer wall of the building that will be constructed, and the frame for supporting the deck plate will be attached to the outer wall of the building that will be constructed subsequently. To provide a method for constructing an inter-building communication duct, characterized in that construction within the duct is carried out in parallel with a building to be constructed subsequently.

(Function) In the method of constructing the inter-building communication duct configured as described above, the deck plate support pedestal is attached to the subsequently constructed building, and the deck plate support pedestal is constructed in advance with a bracket. By being supported by the building, construction within the inter-building continuous duct can be carried out in parallel with the building to be constructed subsequently.

(Embodiment) An embodiment of the method for constructing an inter-building communication duct according to the present invention will be described with reference to FIGS. 1 to 5.

First, as shown in FIG. 1, the ground is excavated in order to construct the reactor building 1 and turbine building 2.

At this time, for reasons such as earthquake resistance, the reactor building 1 is excavated until rock that is harder than the turbine building 2 is exposed, and curing concrete is poured.

As for Turbine Building 2, once the required strength of rock has been obtained, curing concrete will be placed prior to Reactor Building 1, resulting in slope 3 for excavation of Reactor Building 1. MMR4 will be placed in the area.

Next, mats 5 for the reactor building 1 and mats for the turbine building 2 are poured, and the reactor building 1 is constructed from the wall 7 on the second basement floor, and the turbine building 2 is constructed from the wall 8 on the first basement floor.

Thereafter, when the construction of the basement floor outer wall 9 of the turbine building 2, which is being constructed in advance, is completed, the basement floor outer wall 9 is waterproofed. Next, when the second floor exterior wall 22 is completed, the scaffolding temporary bracket 12 is attached to the second floor exterior wall 22,
External wall scaffolding 11 was replaced, walls on the third floor and above (not shown) were constructed, and the second floor external wall 22 of turbine building 2 was replaced.
The floor 19 and ceiling 2 of the inter-building duct 18 shown in Figure 2
A bracket 25 for receiving the frame 24 for supporting the deck plate 23 of No. 1 is attached.

On the other hand, for the reactor building 1 that will be constructed subsequently, once the construction of the basement floor exterior wall 14 is completed, the basement floor exterior wall 14 will be waterproofed. Next, the first floor exterior wall 15 will be constructed as shown in Figure 3. At the same time, a pedestal 24 for supporting the floor 19 and deck plate 23 of the ceiling 21 of the inter-building communication duct 18 to which the receiving material 26 for supporting the scaffolding is attached is installed.

The first floor exterior wall 15 will be poured. At this time, the pedestal 24 on the turbine building 2 side is supported by a bracket 25 installed in advance on the outer wall 22 of the second floor of the turbine building 2, as shown in FIG. When the external mis-casting is completed, temporary scaffolding brackets 1 will be installed on the first floor external wall 15 in areas that do not interfere with the inter-building communication duct 1-18.
2 will be installed, the external wall scaffolding 11 will be replaced, and walls 16 above the second floor will be constructed.

As mentioned above, when the waterproofing work on the basement floor outer walls 9 and 14 of the reactor building 1 and turbine building 2 is completed and the replacement of the outer wall scaffolding 11 is completed, the ground level will be buried up to the ground level 17 in parallel with building construction. As the return is carried out, the following atoms are transferred to the floor 19, walls 20, and walls of the inter-building communication duct 18 as the building 1 is constructed. Construct the ceiling according to step 21.

In this way, construction of the inter-building communication duct 18 is completed, painting and curing including dismantling of the scaffolding inside the inter-building communication duct 18 are completed, and when the inter-building communication duct 18 is vacated, the fifth
As shown in the figure, access will be made from the turbine building 2, which has already been vacated, and construction of piping, cable trays, etc. in the inter-building communication duct 18 will begin.

On the other hand, the construction of the outer walls of the reactor building 1 and the turbine building 2 will be completed once the subsequent outer wall construction of the reactor building 1 has been completed, and will include the removal of the temporary brackets 12, painting of the outer walls of the buildings, and painting of the outer walls of the buildings. Scaffolding 11 will be dismantled.

According to the method for constructing the inter-building communication duct of the above embodiment, a pedestal for supporting the scaffolding on the outside wall of the building is provided on the deck plate support frame used for constructing the floor and ceiling portions of the inter-building communication duct, and By assembling the external wall scaffolding on the platform, it is possible to eliminate the need for twice the external wall painting work of the building that will be constructed subsequently. In addition, brackets for supporting the deck plate used for construction of the floor and ceiling portions of the inter-building communication duct will be installed on the exterior wall of the building that will be constructed in advance, and the deck plate will be supported on the exterior wall of the building that will be constructed subsequently. With the installation of the construction frame, the inter-building communication duct 1- will be constructed in parallel with the building to be constructed subsequently, and the communication duct will be vacated early, so piping, cable trays, etc. in the inter-building communication duct will be constructed. It will be possible to complete the construction work earlier, shortening the construction period and eliminating man-hours for the nuclear power plant. Although one embodiment of the present invention has been described above, it is not limited to this embodiment, and it goes without saying that many changes and modifications can be made without departing from the spirit of the present invention.

〔Effect of the invention〕

According to the method for constructing the inter-building communication duct according to the present invention, since the deck plate support frame is attached to the outer wall of the building to be constructed subsequently, the inter-building communication duct can be constructed in parallel with the building to be constructed subsequently. It is possible to shorten the construction period.

[Brief explanation of drawings]

The first construction drawing is a vertical sectional view of a building explaining the construction method of an inter-building communication duct according to an embodiment of the present invention, FIG. 2 is a perspective view of the deck plate support frame used in FIG. 3
The figure is a partially cutaway side view showing an enlarged main part of the present invention, FIG. 4 is a sectional view taken along the line A-A in FIG. 1, and FIG. 6 to 8 are vertical sectional views each illustrating a conventional method for constructing an inter-building communication duct, and FIG. 9 is a process diagram showing a conventional construction method for an inter-building communication duct. 1... Reactor building 2... Durbin building 11
...Scaffolding for external wall 12 ...Temporary bracket 1
8... Inter-building communication duct 23... Deck plate 24... Deck plate support pedestal 25... Deck plate support pedestal support is bracket 2
6...Scaffolding support material

Claims (1)

[Claims] In a method for constructing an inter-building communication duct that is installed between two buildings that are constructed in close proximity, a deck plate support pedestal bracket is attached to the outer wall of the building that is constructed in advance, and the duct is constructed subsequently. A structure between buildings characterized in that a frame for supporting a deck plate used for constructing an inter-building communication duct is attached to the outer wall of the building, and then the construction inside the inter-building communication duct is carried out in parallel with the building to be constructed subsequently. How to build communication ducts.