Construction method for aerial walkway

Abstract

To provide a method of constructing an aerial walkway that facilitates the construction of the aerial walkway, while ensuring the passage of pedestrians and vehicles directly under the aerial walkway.SOLUTION: A method of constructing an aerial walkway comprises the following steps: Step S1, in which a preceding building 10 is constructed in advance, a structure 31 of the aerial walkway 30 is assembled on the ground 2, and a suspended scaffold 41 and an external scaffold 42 are attached to the structure 31 to form a walkway unit 43; Step S2, in which a temporary bearing structure 50 is installed near the construction site of a later-constructed building 20; Step S3, in which the walkway unit 43 is lifted by a lifting machine 51, one end of the structure 31 of the walkway unit 43 is connected to the preceding building 10, and the other end of the structure 31 is supported by the temporary bearing structure 50; Step S4, in which a part of the later-constructed building 20 is constructed, and the later-constructed building 20 is connected to the other end of the structure 31 of the walkway unit 43; and Step S5, in which the aerial walkway 30 is completed, and the suspended scaffold 41, the external scaffold 42, and the temporary bearing structure 50 are removed.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present invention relates to a method for constructing an air passage between a pre-existing building and a post-construction building that is constructed by post-construction to the pre-existing building. [Background technology]

[0002] 2. Description of the Related Art Conventionally, when constructing a building, a passageway is provided directly below the structural body of the building (see Patent Document 1). Patent Document 1 discloses a building construction method that includes a first step of securing a construction passage within a construction area, and a second step of constructing a structure above the construction passage, leaving the construction passage. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2015-183386 A Summary of the Invention [Problem to be solved by the invention]

[0004] An object of the present invention is to provide a method for constructing an aerial passageway, which allows easy construction work of the aerial passageway while ensuring the passage of pedestrians and vehicles directly below the aerial passageway. [Means for solving the problem]

[0005] The inventor constructed an air passageway connecting two buildings by erecting an air passageway unit between the preceding building and the temporary support gantry after the preceding building is constructed and before the later-constructed building is constructed, rather than after the two buildings are completely constructed, and then constructing the later-constructed building and connecting the passageway unit to the later-constructed building. In this way, in the present invention, an air passageway is constructed by erecting a passageway unit preassembled on the ground between the preceding building and the temporary support gantry, so that the amount of work on the preceding building and the temporary support gantry can be reduced, improving work efficiency and shortening the construction period. The method for constructing an air passage of the first invention is a method for constructing an air passage (e.g., an air passage 30 described later) between a preceding building (e.g., a preceding building 10 described later) and a later-constructed building (e.g., a later-constructed building 20 described later) that is to be constructed by post-construction to the preceding building, and includes a step (e.g., step S1 described later) of constructing the preceding building in advance, assembling a structure of the air passage (e.g., structure 31 described later) on a ground (e.g., ground 2 described later), attaching a suspended scaffolding (e.g., suspended scaffolding 41 described later) that covers the underside of the structure and an external scaffolding (e.g., external scaffolding 42 described later) that covers the side of the structure to the structure to form a passage unit (e.g., passage unit 43 described later), and a construction site for the later-constructed building. the step of installing a temporary support gantry (e.g., temporary support gantry 50 described later) on the ground (e.g., ground 2B described later) near the location (e.g., step S2 described later); the step of lifting the passage unit with a lifting machine (e.g., lifting machine 51 described later), joining one end side of the structure of the passage unit to the preceding building, and supporting the other end side of the structure on the temporary support gantry (e.g., step S3 described later); the step of constructing at least a part of the post-construction building and joining the other end side of the structure of the passage unit to the post-construction building (e.g., step S4 described later); and the step of completing the aerial passage and removing the suspended scaffolding, the external scaffolding, and the temporary support gantry (e.g., step S5 described later).

[0006] According to this invention, instead of constructing a later-construction building and then erecting an air passage between the later-construction building and the preceding building after the later-construction building is constructed, one end of the passage unit that will become the air passage is joined to the preceding building, and the other end of the passage unit is supported by a temporary support gantry, so that the air passage is erected before the later-construction building is constructed. Therefore, even during the construction of the later-construction building, workers can pass through the air passage, improving work efficiency and shortening the construction period. In addition, a suspension scaffold and external scaffolding were attached to the structure of the aerial passage to form a passage unit, and this passage unit was lifted by a lifting machine and erected between the preceding building and the temporary supporting platform, thereby reducing the amount of work in the air and enabling the aerial passage to be constructed efficiently. In addition, by erecting the passageway unit that will serve as the aerial passage between the preceding building and the temporary supporting platform, construction work for the aerial passage can be carried out while ensuring the passage of pedestrians and vehicles directly below the aerial passageway.

[0007] The method for constructing an aerial passage of the second invention is characterized in that the aerial passage comprises the structure, and a floor material (e.g., floor material 36 described below), a wall material (e.g., wall material 37 described below), and a ceiling material (e.g., ceiling material 38 described below) attached to the structure.

[0008] According to this invention, the skywalk is formed by attaching floor materials, wall materials, and ceiling materials to a structural body, so that pedestrians and vehicles can pass directly below the skywalk.

[0009] The method for constructing an aerial passageway of the third invention is characterized in that, in the passageway unit, the suspended scaffolding and external scaffolding are provided only in the central part of the length direction of the structure.

[0010] One end of the structure is joined to the preceding building, and the other end of the structure is supported by a temporary support platform, so the center of the structure is in the air. Therefore, according to this invention, the suspended scaffolding and the external scaffolding are provided only in the center of the length of the structure, so the center of the air passage can be easily constructed using the suspended scaffolding and the external scaffolding. Effect of the Invention

[0011] According to the present invention, a method for constructing an aerial passage can be provided that can easily carry out construction work for the aerial passage while ensuring the passage of pedestrians and vehicles directly below the aerial passage. [Brief description of the drawings]

[0012] [Figure 1] 1 is a side view of a group of buildings constructed by a method for constructing an aerial passage according to one embodiment of the present invention. [Diagram 2] 2 is a cross-sectional view taken along line AA of the aerial walkway that constitutes the group of buildings in FIG. 1. [Diagram 3] 1 is a flowchart of a procedure for constructing an air passage between a pre-constructed building and a later-constructed building. [Figure 4] FIG. 11 is a side view of the passage unit assembled on the ground. [Diagram 5] 5 is a cross-sectional view of the passage unit of FIG. 4 . [Figure 6] This is an explanatory diagram of the construction procedure for the aerial walkway (Part 1: The walkway unit is lifted by a lifting machine and erected between the preceding building and the temporary supporting platform). [Figure 7] This is an explanatory diagram of the construction procedure for the aerial passage (part 2, after the passage unit installation is completed). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] This invention is a method for constructing an aerial passageway that connects two buildings. After the two buildings are completely constructed, but after the preceding building is constructed and before the later-constructed building is constructed, a passageway unit that will become an aerial passageway is erected between the preceding building and a temporary support gantry. Then, the later-constructed building is constructed and the passageway unit is connected to the later-constructed building. Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Fig. 1 is a side view of a group of buildings 1 including an air passage 30 constructed by a method for constructing an air passage according to an embodiment of the present invention. Fig. 2 is a cross-sectional view of the air passage 30 of Fig. 1 taken along line AA. The group of buildings 1 comprises a precedent building 10 constructed on a ground 2A, a later-constructed building 20 constructed on the ground 2B by post-construction to the precedent building 10, and an aerial passage 30 constructed between the precedent building 10 and the later-constructed building 20. A road 3 is provided between a ground 2A on which the preliminary building 10 is constructed and a ground 2B on which the later-constructed building 20 is constructed, and the aerial passage 30 is provided so as to straddle this road 3.

[0014] The aerial passage 30 comprises a structural body 31 made of a steel frame and a finishing material 32 attached to the structural body 31. The structural body 31 comprises floor beams 33, columns 34 extending upward from the floor beams 33, and ceiling beams 35 connecting the upper ends of the columns 34 together. The finishing material 32 comprises a floor material 36 attached to the upper surface of the floor beams 33 , a wall material 37 attached to the outer surface of the pillars 34 , and a ceiling material 38 attached to the upper surface of the ceiling beams 35 .

[0015] Hereinafter, the procedure for constructing an aerial passage 30 between the preceding building 10 and the subsequent construction building 20 that will be constructed by post-construction to the preceding building 10 will be described with reference to the flowchart of FIG. It is assumed that a preceding building 10 has been constructed on the ground 2A in advance. In step S1, as shown in Figures 4 and 5, a platform 40 is installed on the ground 2, and the structure 31 of the aerial passage 30 is assembled on this platform 40. A suspended scaffolding 41 covering the underside of the structure 31 and an external scaffolding 42 covering the sides of the structure 31 are attached to form a passage unit 43. The suspended scaffolding 41 is suspended and supported from the structure 31. The external scaffolding 42 is a frame scaffolding, and is supported on both ends of the suspended scaffolding 41. A protective sheet 44 is attached to the outer side surface of the external scaffolding 42.

[0016] In step S2, as shown in FIG. 6, a temporary support gantry 50 is installed on the ground 2B in the vicinity of the construction site of the to-be-constructed building 20. In step S3, as shown in Fig. 6, the passage unit 43 is lifted by a lifting machine 51 and erected between the preceding building 10 and the temporary support gantry 50. Specifically, a lifting jig 52 is suspended and supported by the lifting machine 51, and the passage unit 43 is suspended and supported by a wire 53 from the lifting jig 52. Next, the passage unit 43 is lifted by the lifting machine 51, one end of the structure 31 is joined to the preceding building 10, and the other end of the structure 31 is placed on and supported by the temporary support gantry 50. This results in the state shown in Fig. 7. At this time, a hydraulic jack (not shown) for level adjustment is placed on the temporary support gantry 50, and the top end surface of the ram of the hydraulic jack supports the bottom surface of the structure 31. This allows the height position of the passage unit 43 to be adjusted.

[0017] In step S4, a portion of the to-be-constructed building 20 up to the height of the passage unit 43 is constructed, and the to-be-constructed building 20 and the other end side of the structural body 31 are joined. In step S5, the remaining portion of the post-construction building 20 is constructed and completed. Also, floor materials 36, wall materials 37, and ceiling materials 38 are attached to the structure 31 to complete the aerial passage 30, and the suspended scaffolding 41, the external scaffolding 42, and the temporary support gantry 50 are removed. When removing the temporary support gantry 50, the upper end surface of the ram of the hydraulic jack for level adjustment is lowered to release the load of the aerial passage 30 acting on the temporary support gantry 50, and then the temporary support gantry 50 is removed.

[0018] According to this embodiment, the following effects are obtained. (1) Rather than erecting the aerial passage 30 between the to-be-constructed building 20 and the preceding building 10 after constructing the to-be-constructed building 20, one end of the passage unit 43 that will become the aerial passage 30 is joined to the preceding building 10 and the other end of the passage unit 43 is supported by a temporary support gantry 50, thereby erecting the aerial passage 30 before constructing the to-be-constructed building 20. Therefore, even during construction of the to-be-constructed building 20, workers can pass through the aerial passage 30, improving work efficiency and shortening the construction period. In addition, a passage unit 43 is formed by attaching a suspended scaffolding 41 and an external scaffolding 42 to the structure 31 of the aerial passage 30, and this passage unit 43 is lifted by a lifting machine 51 and erected between the preceding building 10 and the temporary support gantry 50, thereby reducing the amount of work in the air and enabling the aerial passage 30 to be constructed efficiently. In addition, by erecting the passage unit 43 that will become the aerial passage 30 between the preceding building 10 and the temporary support platform 50, construction work for the aerial passage 30 can be carried out while ensuring the passage of pedestrians and vehicles on the road 3 directly below the aerial passage 30.

[0019] (2) The skywalk 30 is formed by attaching the floor materials 36, wall materials 37, and ceiling materials 38 to the structure 31, so that pedestrians and vehicles can pass directly below the skywalk 30. In addition, since the amount of work on the temporary support gantry 50 can be reduced, the skywalk 30 can be constructed efficiently, and as a result, the group of buildings 1 including the skywalk 30 can be constructed in a short construction period. (3) Since the suspended scaffolding 41 and the external scaffolding 42 are provided only in the central portion of the length of the structure 31, the central portion of the aerial passage 30 can be easily constructed using the suspended scaffolding 41 and the external scaffolding 42.

[0020] The present invention is not limited to the above-described embodiment, and modifications and improvements within the scope of the present invention that can achieve the object of the present invention are included in the present invention. [Explanation of symbols]

[0021] 1. Buildings 2, 2A, 2B…Ground 3…Road 10...Pre-construction building 20...Remaining construction building 30...air passage 31...structure 32...finishing material 33…Floor beam 34…Column 35…Ceiling beam 36...Flooring material 37...Wall material 38...Ceiling material 40... platform 41... suspended scaffolding 42... external scaffolding 43... Passageway unit 44... Curing sheet 50: Temporary support platform 51: Lifting machine 52: Lifting jig 53: Wire

Claims

1. A method for constructing an air passage between a pre-construction building and a post-construction building constructed by post-construction to the pre-construction building, comprising: The preceding building is constructed in advance, A process of assembling a structure of the aerial passage on the ground and attaching a hanging scaffolding covering the underside of the structure and an external scaffolding covering the side surface of the structure to the structure to form a passage unit; A step of installing a temporary support platform on the ground near the construction site of the post-construction building; a step of lifting the passage unit with a lifting machine, joining one end side of the structure of the passage unit to the preceding building, and supporting the other end side of the structure on the temporary support platform; A step of constructing at least a part of the post-construction building and joining the post-construction building and the other end side of the structure of the passage unit; A method for constructing an aerial passage, comprising a step of completing the aerial passage and removing the suspended scaffolding, the external scaffolding, and the temporary support gantry.

2. The method for constructing an air passage according to claim 1, wherein the air passage comprises the structure, and a floor material, a wall material, and a ceiling material attached to the structure.

3. The method for constructing an aerial passageway according to claim 1 or 2, characterized in that in the passageway unit, the suspended scaffolding and the external scaffolding are provided only in the central portion of the length of the structure.

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