JP2019023382A - Roof repair method of an existing building - Google Patents

Abstract

To provide a method to repair a roof of an existing building, utilizing inside of the building and without being affected by weather conditions.SOLUTION: A method of roof repair of an existing building consists of steps S1, S2, S7, S8, S13 and S14 for setting a temporary roof 30 above the roof 13 of an existing building 1, steps S3, S9 and S15 for setting temporary stages 40 and 50 below the roof 13 with dust drop prevention parts which receive dropping dust inside the existing building 1, and steps S4-S6, S10-S12 and S16-S18 for repairing a part of the roof 13 of the building 1 between the temporary roof 30 and the temporary stages 40 and 50.SELECTED DRAWING: Figure 3

Description

  The present invention is a method of repairing a roof of an existing building while using the inside of the building, and a temporary stage for indoor curing is provided inside the building, and a temporary roof is installed to cover the roof above the roof of the existing building Then, the present invention relates to a roof repair method for an existing building in which the roof is repaired.

Conventionally, in order to ensure a working environment that is not affected by the weather, it has been proposed to cover the working place with a temporary roof (see Patent Document 1).
Patent Document 1 discloses an openable temporary roof that covers a construction site of civil engineering or architecture. The temporary roof is composed of a traveling rail, a truss member, and an electric winch. The traveling rail is installed on the top of the external frame scaffold, the truss member is attached to the traveling rail so as to be openable and closable, and the tent is stretched. The truss member is opened and closed by the electric winch. However, the temporary roof of Patent Document 1 is installed above the work place in order to perform work efficiently on the construction site of civil engineering and architecture without being affected by the weather, such as dust generated by the work It is not assumed that the existing building will be refurbished while preventing falling into the existing building, and there is no description about the curing method inside the existing building.

Moreover, in order to repair the roof while continuously using the inside of an existing building, it has been proposed to arrange a mobile safety curing cart directly under the work place (see Patent Document 2).
Patent Document 2 shows a mobile safety curing cart 1 used for roof construction of a building where an overhead crane is installed. The mobile safety curing cart includes a plurality of wheel mechanisms respectively loaded on a pair of rails of an overhead crane, a saddle material that connects wheel mechanisms on each rail, and a plurality of girders that connect opposite saddle materials, It consists of a safety net and a sheet stretched between the girders. The mobile safety curing cart of Patent Document 2 is provided with a safety net and a seat, and is effective as a curing device for indoor work when renovating the roof of an existing building. There was a problem of being influenced.

JP-A-8-68211 JP 2003-166350 A

  This invention makes it a subject to propose the roof repair method which can repair the roof of the existing building, without being influenced by the weather, using the inside of a building continuously.

  As a method of repairing a roof of an existing building, the present inventors have installed a roof of an existing building to be repaired, a temporary roof-cultivating body installed above the roof, and installed above the existing building to receive dust. Focusing on the point that it is possible to reduce the construction noise and vibration caused by roof renovation and to prevent the scattering of construction dust inside the building by sandwiching it with a temporary stage for indoor curing equipped with a dust fall prevention part. Thus, the present invention has been achieved.

  The roof repair method for an existing building of the first invention is a method for repairing a roof (for example, a roof 13 described later) of an existing building (for example, an existing building 1 described later), and a temporary roof (for example, above the roof) , A step (for example, Steps S1, S2, S7, S8, S13, and S14, which will be described later) for installing a temporary roof 30 which will be described later, and a dust fall prevention unit that receives dust under the roof inside the existing building ( For example, a step of installing a temporary stage (for example, temporary stages 40 and 60 to be described later, a moving temporary stage 50) having a floor 43, a horizontal curing net 44, a plywood 45, and a resin sheet 46, which will be described later (for example, steps to be described later). S3, S9, S15) and a step of repairing a portion sandwiched between the temporary roof and the temporary stage in the roof of the existing building (for example, steps S4 to S6 described later, 10～S12, characterized in that it comprises a S16 to S18), the.

According to this invention, since the roof of the existing building is covered with the temporary roof from above, the roof of the existing building can be repaired without being influenced by the weather.
In addition, a dust fall prevention unit for separating and separating the interior of the building to be used in the horizontal direction, directly under the roof of the existing building, that is, under the roof of the existing building A temporary stage provided with was provided. Therefore, even if demolition materials, dust, tools, etc. fall from the roof as the roof is renovated, the temporary stage receives these fallen objects, so the renovation work can proceed while continuing to use the building. it can.
In addition, since the roof to be repaired is sandwiched and covered by the temporary roof and the temporary stage from above and below, noise leakage, vibration propagation, dust scattering, and the like, which are generated when the roof is repaired, can be reduced. Furthermore, the roof of the existing building can be repaired while using the inside of the building by covering the roof of the existing building with the temporary roof and the temporary stage.

  In the roof repair method for an existing building of the second invention, the temporary roof and the temporary stage (for example, a moving temporary stage 50 described later) have a predetermined length in the length direction of the roof, and the length of the roof It is possible to move in the vertical direction.

  According to the present invention, the roof is repaired while a part of the roof repair range is covered with the temporary roof and the temporary stage from above and below. In this way, only a part of the repair area of the roof is temporarily cured, and the repair work is performed while moving the area to be temporarily cured. Since the range of the range can be limited, the temporary curing cost can be reduced.

  In the roof renovation method for an existing building according to a third aspect of the invention, the temporary roof is movable on a horizontal member (for example, a traveling rail 22 described later) extending in the length direction of the roof.

  According to this invention, since the temporary roof can be moved on the horizontal member, the replacement work of disassembling and reassembling the temporary roof becomes unnecessary, and the roof can be repaired at low cost.

  ADVANTAGE OF THE INVENTION According to this invention, the roof of an existing building can be renovated, without being influenced by the weather, using the inside of a building.

It is a top view of the roof part of the existing building with which the roof repair method of the existing building which concerns on one Embodiment of this invention is applied. It is II sectional drawing of the existing building shown in FIG. It is a flowchart (the 1) of the procedure of the roof repair method of the existing building. It is a flowchart (the 2) of the procedure of the roof repair method of the existing building. It is explanatory drawing which shows the roof repair method of the existing building (the 1 and the top view 1 of a temporary roof looking down). It is explanatory drawing (the 2 and II-II sectional drawing of FIG. 5) which shows the roof repair method of the existing building. It is explanatory drawing (the 3 and III-III sectional drawing of FIG. 5) which shows the roof repair method of the existing building. It is explanatory drawing (the 4th, the top-down plan view 1 of a temporary stage) which shows the roof repair method of the existing building. It is explanatory drawing (the IV-IV sectional drawing containing the existing building of FIG. 8, the existing building of FIG. 8, and a temporary roof) which shows the roof repair method of the existing building. It is explanatory drawing (the 6th, the top-down plan view 2 of a temporary roof) which shows the roof repair method of the existing building. It is explanatory drawing (the 7 and VV sectional drawing of FIG. 10) which shows the roof repair method of the existing building. It is explanatory drawing (the 8th, the top-down plan view 2 of a temporary stage) which shows the roof repair method of the existing building. It is explanatory drawing (the 9 and VI-VI sectional drawing containing the existing building of FIG. 12, and a temporary roof) which shows the roof repair method of the existing building. It is explanatory drawing (the 10th, the top-down plan view 3 of a temporary roof) which shows the roof repair method of the existing building. It is explanatory drawing (the 11th, VII-VII sectional drawing of FIG. 14) which shows the roof repair method of the existing building.

  The present invention is a roof repair method for an existing building in which a temporary living body (a temporary roof and a temporary stage) having a predetermined length is installed above and below an existing roof, and the roof is repaired while moving the temporary living body. is there. In the roof renovation method for an existing building according to this embodiment, as shown in FIGS. 5 and 6, a temporary roof is installed above the roof of the existing building, and the roof portion and the building to be repaired are located above the building interior. In order to divide and separate the interior from the horizontal direction, a temporary stage is provided to have a dust fall prevention part for receiving dust, and the roof is repaired in a state where the existing roof is covered from above and below.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a plan view of a roof portion of an existing building 1 to which an existing building roof repair method according to an embodiment of the present invention is applied. FIG. 2 is a cross-sectional view taken along the line II of the existing building 1 shown in FIG.
The existing building 1 is a factory, and is configured with three ridges 2A, 2B, and 2C that are substantially rectangular in plan view and arranged in parallel.
Specifically, each of the ridges 2A to 2C is provided on a plurality of columns 10 arranged in three columns in the column direction, a truss beam 11 supported by these columns 10, and an upper surface of the truss beam 11. A roofing material 12 such as a tiled rod. The truss beams 11 and the roofing material 12 constitute a roof 13 that extends in the direction of the beam.
In addition, in the central building 2B between the building 2A and the building 2C, the crane garter 14 on which the mobile crane travels is already installed along the column row of the three columns 10 (see FIG. 11). .

The procedure for repairing the roof 13 of the existing building 1 will be described with reference to the flowcharts of FIGS. 3 and 4.
In this embodiment, the roof 13 is repaired in the order of the building 2A, the building 2B, and the building 2C. Moreover, about each building 2A-2C, it divides | segments into the several work area from the 1st work area to the n-th (n is a natural number more than 2) work area in the direction of a line by planar view, and repair work is performed in order from the 1st work area. .

  In step S1, as shown in FIG. 5 and FIG. 6, an external roof mount 20A extending in the direction of the beam is installed outside the ridge 2A. On the upper surface of the external roof mount 20A, a traveling rail 22 is provided as a horizontal member extending in the beam running direction (the length direction of the roof 13). Further, as shown in FIGS. 5 to 7, an internal roof mount 21 </ b> A extending in the direction of the beam is installed in the vicinity of the building 2 </ b> B inside the building 2 </ b> A. The internal roof mount 21A penetrates the roof surface of the roof 13 and protrudes upward, and the upper surface of the internal roof mount 21A runs as a horizontal member extending in the beam running direction (the length direction of the roof 13). Rails 22 are provided.

  In step S2, as shown in FIGS. 5 to 7, in the first work section on one end side (upper end in FIG. 5) of the ridge 2 </ b> A, above the roof 13, in the row direction (length direction of the roof 13). A temporary roof 30 having a predetermined length (for example, 2 m to 3 m) is installed. The temporary roof 30 is supported by the outer roof mount 20A and the inner roof mount 21A, and covers the entire first work area of the ridge 2A in plan view.

The temporary roof 30 is stretched on the surface of the truss 31, a mountain-shaped truss 31 arranged in a row in the direction of the line (the length direction of the roof 13), a connecting member 32 for connecting the trusses 31 to each other. A seat 33 and a traveling unit 34 provided at both ends of the truss 31 are provided.
The traveling unit 34 is provided with wheels, and can travel on the traveling rails 22 of the outer roof mount 20A and the inner roof mount 21A. Therefore, the temporary roof 30 can be moved in the beam direction (the length direction of the roof 13) by causing the traveling unit 34 to travel on the traveling rail 22.

Both end portions of the mountain-shaped truss 31 are connected by a tie bar 35 extending in the horizontal direction, whereby the rigidity of the temporary roof 30 is increased.
The sheet 33 is provided over the entire upper surface of the temporary roof 30, and is also provided on both end surfaces in the length direction of the temporary roof 30 and on the upper portion of the tie bar 35.
When the temporary roof 30 is constructed, a temporary roof unit obtained by dividing the temporary roof 30 into a plurality of lengths in the length direction is laid on the ground, and the temporary roof unit is lifted by a lifting machine. The temporary roof units are connected to each other on the roof 13.

In step S3, as shown in FIG. 5 and FIG. 6, in the first work section on one end side (upper end in FIG. 5) of the ridge 2A, the upper surface of the conventional scaffold is below the roof 13 inside the ridge 2A. A substantially horizontal temporary stage 40 is installed.
The temporary stage 40 includes a plurality of rows of support portions 41 having a predetermined height that are installed on a conventional scaffold and extend in the direction of the row of the ridge 2A, and a beam portion that is installed between upper ends of the support portions 41 and extends linearly. 42 and a planar floor portion 43 provided between the beam portions 42.

In addition, as shown in FIG. 6, a dust fall prevention unit for receiving dust is provided to horizontally separate the roof portion to be renovated and the inside of the building to be used even during the renovation. . The dust fall prevention unit is affixed to the floor 43, the horizontal curing net 44 installed below the floor 43, the plywood 45 laid on the upper surface of the floor 43, and the upper surface of the plywood 45. And a resin sheet 46. By this dust fall prevention part, the roof part to be repaired and the inside of the building can be separated in the horizontal direction, and the construction dust can be captured by the temporary stage 40 to prevent the temporary stage 40 from being scattered downward.
Further, similarly to the temporary stage 40, a horizontal curing net 44 is installed on the lower surface of the truss beam of the existing building. The horizontal curing net 44 captures fragments and the like of the roof to be repaired.
When the temporary stage 40 is installed, as shown in FIGS. 8 and 9, first, the support part 41 is installed and the beam part 42 is laid on the floor surface. Next, the ground beam portion 42 is lifted by a small lifting machine and attached between the support portions 41, and then the floor portion 43, the plywood 45, and the resin sheet 46 are attached.

In step S4, as shown in FIGS. 5 and 6, for the first work section sandwiched between the temporary roof 30 and the temporary stage 40 in the roof 13 of the ridge 2A, the refurbishment of the roofing material 12 and the equipment in the roof 13 are performed. Renovate.
In step S5, the temporary roof 30 is moved in the direction of the white arrow in FIG. 5 and placed in the next work area, and the temporary stage 40 is replaced with the next work area.
In step S6, steps S4 and S5 are repeated.

In step S7, as shown in FIG. 10 and FIG. 11, an internal roof mount 21C extending in the direction of the cross is installed in the vicinity of the ridge 2B inside the ridge 2C. The internal roof mount 21C has the same configuration as the internal roof mount 21A.
Further, the external roof mount 20A installed outside the building 2A is dismantled and removed.

  In step S8, as shown in FIG. 10 and FIG. 11, in the first work section on one end side (upper end in FIG. 10) of the ridge 2B, the direction of the roof 13 (the length of the roof 13) is above the roof surface. A temporary roof 30 having a predetermined length (for example, 2 m to 3 m) is installed in the direction). The temporary roof 30 has the same configuration as that of the temporary roof 30 of the ridge 2A, is supported by the internal roof mount 21A and the internal roof mount 21C, and covers the entire first work area of the ridge 2B in plan view.

In step S9, as shown in FIG. 10 and FIG. 11, a temporary moving stage 50 is installed inside the ridge 2B and below the roof 13 in the first work section on one end side (upper end in FIG. 10) of the ridge 2B. To do. The moving temporary stage 50 has a predetermined length in the direction of the beam (the length direction of the roof 13), and is located in the first work area of the ridge 2B in plan view.
The moving temporary stage 50 includes a traveling unit 51 (see FIG. 13) provided with wheels capable of traveling on the crane garter 14, a frame-shaped beam unit 52 installed between the traveling units 51, and the beam units 52. And a planar floor portion 53 erected on. A horizontal curing net 54 is installed below the floor 53.
When installing the moving temporary stage 50, as shown in FIGS. 12 and 13, first, the traveling unit 51 is installed on the crane garter 14, and the beam unit 52 is laid on the floor surface. Next, the ground beam section 52 is lifted by a small lifting machine and attached between the traveling sections 51, and then the floor section 53 is installed.
The moving temporary stage 50 is movable in the direction of the beam (the length direction of the roof 13) by causing the wheels of the traveling unit 51 to travel on the traveling rail 22.

In step S <b> 10, the roof material 12 is replaced and the equipment in the roof 13 is repaired in the first work area sandwiched between the temporary roof 30 and the movable temporary stage 50 in the roof 13 of the ridge 2 </ b> B.
In step S11, the temporary roof 30 is moved in the direction of the white arrow in FIG. 10 and placed in the next work section, and the moving temporary stage 50 is moved to the next work section.
In step S12, steps S10 and S11 are repeated.

In step S13, as shown in FIGS. 14 and 15, an external roof mount 20C extending in the direction of the beam is installed outside the ridge 2C. This external roof mount 20C has the same configuration as the external roof mount 20A.
Moreover, the internal roof mount 21A installed inside the ridge 2A is dismantled and removed.

  In step S14, as shown in FIGS. 14 and 15, in the first work section on one end side (upper end in FIG. 14) of the ridge 2C in the row direction, the row direction (the length of the roof 13) is above the roof surface of the roof 13. A temporary roof 30 having a predetermined length is installed in the direction). The temporary roof 30 has the same configuration as that of the temporary roof 30 of the ridge 2A, is supported by the internal roof base 21C and the external roof base 20C, and covers the entire first work area of the ridge 2C in plan view.

  In step S15, as shown in FIG. 14 and FIG. 15, in the first work section on one side of the ridge 2C in the row direction (upper end in FIG. 14), the upper surface of the conventional scaffold is below the roof 13 inside the ridge 2C. A substantially horizontal temporary stage 60 is installed. The temporary stage 60 is located in the first work area of the ridge 2A in plan view. A resin sheet 46 is laid on the upper surface of the temporary stage 60. In addition, a horizontal curing net 61 is installed on the temporary stage 60.

In step S <b> 16, the roof material 12 is replaced and the equipment in the roof 13 is repaired in the first work area sandwiched between the temporary roof 30 and the temporary stage 40 in the roof 13 of the ridge 2 </ b> A.
In step S17, the temporary roof 30 is moved in the direction of the white arrow in FIG. 14 and arranged in the next work area, and the temporary stage 40 is replaced with the next work area.
In step S18, steps S16 and S17 are repeated.

According to this embodiment, there are the following effects.
(1) Since the roof 13 of the existing building 1 is covered with the temporary roof 30 from above, the roof 13 of the existing building 1 can be repaired without being influenced by the weather.
In addition, since temporary stages 40 and 50 are provided inside the existing building 1, that is, immediately below the roof 13 of the existing building 1, even if dismantling material, dust, tools, etc. fall from the roof 13 due to the repair of the roof 13. Since the temporary stages 40 and 50 receive these fallen objects, it is possible to proceed with the renovation work while continuing to use the existing building.
Further, since the roof 13 to be repaired is sandwiched and covered by the temporary stages 40 and 50 and the temporary roof 30 from above and below, noise leakage, vibration propagation, dust scattering, and the like that occur with the repair of the roof 13 are prevented. Can be reduced.

  (2) The roof 13 is repaired while partially covering the roof 13 with the temporary roof 30 and the temporary stages 40 and 50 from above and below. In this way, only a part of the repair range of the roof 13 is temporarily cured, and by performing the repair work while moving the range to be temporarily cured, compared to the case of temporarily curing the repair range of the roof 13 over the entire surface, Since the range of temporary curing can be limited, temporary curing costs can be reduced.

(3) Since the temporary roof 30 is configured to include the mountain-shaped truss 31, the member constituting the truss 31 is not a large-diameter or high-strength member; A temporary roof 30 can be installed.
(4) Since the seats 33 are provided on both end surfaces of the temporary roof 30, rainwater can be prevented from entering between the roof surface of the existing building 1 and the temporary roof 30, and a good work space can be secured.

(5) Since the temporary roof 30 can be traveled on the traveling rails 22, it is not necessary to replace the temporary roof and reassemble it, and the roof 13 can be repaired at low cost.
(6) In the temporary stage 40 and the moving temporary stage 50, a space is formed immediately below the floor portions 43 and 53, so that this space can be used continuously.

It should be noted that the present invention is not limited to the above-described embodiment, and modifications, improvements, etc. within a scope that can achieve the object of the present invention are included in the present invention.
For example, in the present embodiment, the temporary roof 30 that covers the roof of the existing building 1 is supported by the external roof mount 20A and the internal roof mount 21A, the internal roof mounts 21A and 21C, or the internal roof mount 21C and the external roof mount 20C. However, it is not limited to this, and it may be supported only by the external roof mount. Moreover, in this embodiment, although the dust fall prevention part which receives dust was comprised including the floor part 43, the horizontal curing net 44, the plywood 45, and the resin sheet 46, it is not restricted to this. For example, it is not necessary to provide only a plywood on the upper surface of the floor and provide a resin sheet, and if the roof part to be repaired and the interior of the building to be used can be separated and separated in the horizontal direction even during the repair work Good.

DESCRIPTION OF SYMBOLS 1 ... Existing building 2A, 2B, 2C ... Building 10 ... Pillar 11 ... Truss beam 12 ... Roof material 13 ... Roof 14 ... Crane garter 20A, 20C ... External roof mount 21A, 21C ... Internal roof mount 22 ... Running rail (horizontal mount) 30) Temporary roof 31 ... Truss 32 ... Connecting member 33 ... Sheet 34 ... Traveling part 35 ... Tie bar 40, 60 ... Temporary stage 41 ... Supporting part 42 ... Beam part 43 ... Floor part 44 ... Horizontal curing net 45 ... Plywood 46 ... resin sheet 50 ... moving temporary stage 51 ... traveling part 52 ... beam part 53 ... floor part 54 ... horizontal curing net 61 ... horizontal curing net

Claims (3)

A method for repairing the roof of an existing building,
Installing a temporary roof above the roof;
Installing a temporary stage having a dust fall prevention part for receiving dust under the roof inside the existing building;
Repairing a portion sandwiched between the temporary roof and the temporary stage in the roof of the existing building.   The roof repair of an existing building according to claim 1, wherein the temporary roof and the temporary stage have a predetermined length in the length direction of the roof and are movable in the length direction of the roof. Method.   The method for repairing an existing building according to claim 1, wherein the temporary roof is movable on a horizontal member extending in a length direction of the roof.

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