JP2019167765A - Sash installation method - Google Patents

Abstract

To provide a sash installation method which can be easily cured from welding sparks in a reliable manner when a sash is attached by welding to a structure having an outer wall surface to which a heat insulating material is attached.SOLUTION: A sash installation method includes : a step S1 of attaching a discarded drainer 50 having a rising portion 52 formed indoors to a square steel pipe 31 located at the lower end of an outer sash 40 so as to cover the upper end surface of a heat insulating material 32; a step S2 of temporally fixing a spark protective material 60 whose outdoor side is curved upward to the rising portion 52 of the discarded draining portion 50 by a screw 66; a step S3 of welding the external sash 40 to a building 1; a step S4 of removing the spark protective material 60 by inserting an impact driver 67 from the inside into a gap d between the building 1 and the lower end of the external sash 40 to remove the screw 66; and a step S5 of installing a main water cut 42 to the lower end of the external sash 40.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a sash attachment method in which a sash is attached to a structure having a heat insulating material attached to an outer wall surface by welding.

  Conventionally, many welding spark receiving jigs have been proposed in order to prevent sparks generated in welding work from being scattered when steel members are welded on-site. For example, Patent Document 1 discloses a curing jig that is attached around a welding location in a steel member to be welded.

By the way, there is a building having a so-called outer heat insulating structure in which a heat insulating material is attached to an outer wall surface. When a sash is attached on the outer peripheral wall of such a building, it is welded and fixed to the building structure at predetermined intervals over the entire circumference of the joinery, but a heat insulating material is provided on the outer wall surface. Therefore, it is necessary to cure the outer wall with sparks.
In attaching the sash, since the welding locations are separated from each other and the welding time is short and the amount of welding sparks generated is small compared to welding of steel members, simple curing is often performed. For example, it has been proposed to hang a flameproof sheet outward from the waist wall or to use a jig that holds the flameproof sheet in an expanded state as shown in Patent Documents 2 and 3.

JP 2000-291883 A Japanese Patent Laid-Open No. 8-33984 JP 2003-245777 A

  However, when a sash is attached to the outer periphery of the building, if the flameproof sheet is hung on the waist wall, it is not preferable in view of the scenery, and there is a possibility that the flameproof sheet is turned over in a strong wind and sufficient spark curing cannot be performed. Even if the flameproof sheet is simply suspended vertically, the waist wall can be cured, but the weld spark falls directly underneath, and the fallen weld spark may damage the exterior materials and glass on the lower floor. It was. Further, even if the flameproof sheet is spread using a jig, the flameproof sheet may be turned over during strong winds, and sufficient spark curing may not be possible.

  An object of this invention is to provide the sash attachment method which can be cured from a welding spark simply and reliably, when attaching a sash to the structure by which the heat insulating material was attached to the outer wall surface by welding.

  The sash mounting method according to claim 1 is a sash (for example, an external sash 40 to be described later) attached to a structure (for example, a building 1 to be described later) in which a heat insulating material (for example, a heat insulating material 32 to be described later) is attached to the outer wall surface. Is a sash attachment method for attaching by welding, and a lower frame (e.g., a square steel pipe 31 described below) located under the sash, a rising portion (e.g., A step (for example, step S1 to be described later) for attaching a draining drain (for example, a draining drainage 50 to be described later) to which a rising portion 52 described later is formed, and a spark curing in which the outdoor side is curved upward at the rising portion of the draining drainage. A step of temporarily fixing a material (for example, a spark curing material 60 described later) with a screw (for example, a screw 66 described later), and welding the sash to the structure; A screwdriver (for example, an impact driver 67, which will be described later) is inserted into the gap (for example, a later-described gap d) between the structure and the lower end of the sash and a screw (for example, an impact driver 67 which will be described later) from the indoor side. Removing the spark curing material (for example, step S4 described later), and attaching a permanent drainer (for example, later described permanent drainer 42) to the lower end of the sash (for example, step S5 described later). And.

According to this invention, the spark curing material whose outdoor side is curved upward is discarded and attached to the drainer. When the sash is attached to the structure by welding, the spark curing material receives the sash welding spark, so that the insulation provided on the outer wall surface and the glass window on the lower floor can be reliably cured from the welding spark.
Further, since the spark curing material is discarded and temporarily fixed with a screw to drain the water, the spark curing material can be easily attached. Further, when removing the spark curing material, it is only necessary to remove the screw by inserting a screwdriver from the indoor side into the gap between the structure and the lower end of the sash, so that the spark curing material can be easily removed.
Since the spark curing material can be diverted to other floors and structures, the number of production of the spark curing material can be reduced, so that the construction cost can be reduced.

  In the sash attachment method according to claim 2, a string-like member (for example, parent rope rope 65 described later) is attached to the spark curing material, and the spark curing material is temporarily fixed with a screw from the indoor side. Then, the tip of the string-like member is temporarily fixed to the structure, and after removing the spark curing material, the fall prevention string is removed from the structure.

  According to this invention, the string-like member is attached to the spark curing material, and the string-like member is temporarily fixed to the structure during the period in which the spark curing material is temporarily fixed. Therefore, since the spark curing material is connected to the structure with this string-like member, it is possible to prevent the spark curing material from falling even if the screw for temporarily fixing the spark curing material is removed.

  ADVANTAGE OF THE INVENTION According to this invention, when attaching a sash to the structure by which the heat insulating material was attached to the outer wall surface by welding, it can cure easily and reliably from a welding spark.

It is a longitudinal cross-sectional view of the building to which the external sash was attached by the sash attachment method which concerns on one Embodiment of this invention. It is an enlarged view of the part enclosed with the broken line A of FIG. It is a flowchart of the procedure which attaches the said external sash to the said building. It is explanatory drawing (the 1) of the procedure which attaches the said external sash to the said building. It is a perspective view of the spark curing material used for attachment of the external sash. It is explanatory drawing (the 2) of the procedure which attaches the said external sash to the said building. It is explanatory drawing (the 3) of the procedure which attaches the said external sash to the said building.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a longitudinal sectional view of a building 1 as a structure to which an external sash 40 is attached by a sash attachment method according to an embodiment of the present invention.
The building 1 is a steel structure building, and includes an outer peripheral steel beam 10, a floor slab 20 supported by the outer peripheral steel beam 10, an outer panel 30 supported by the outer peripheral steel beam 10, and upper and lower outer panels 30. It has an external sash 40 attached.

The exterior panel 30 is supported by the outer peripheral steel beam 10 via a support hardware (not shown). The exterior panel 30 includes a rectangular frame-shaped rectangular steel pipe 31 and a heat insulating material 32 attached to the outer surface of the rectangular steel pipe 31. The exterior panel 30 is configured from the waist wall 2 on the current floor to the hanging wall 3 on the lower floor of the outer steel beam 10 in a state of being attached to the outer steel beam 10.
The floor slab 20 is reinforced concrete, and is constructed using, for example, a half precast PC. The gap between the floor slab 20 and the exterior panel 30 is filled with rock wool 11.

The fireproof coating 11 is sprayed from the side surface on the indoor side of the outer peripheral steel beam 10 and the lower surface of the outer peripheral steel beam 10 to the side surface on the indoor side of the exterior panel 30. Further, a fireproof board (gypsum board) 13 is attached between the fireproof coating 12 and the rock wool 11 in the side surface on the indoor side of the exterior panel 30.
The outer sash 40 has a rectangular frame shape, and the lower end of the outer sash 40 is fixed by welding to a square steel pipe 31 as a lower frame of the exterior panel 30 that is the upper end of the waist wall 2 of this floor. The upper end of the external sash 40 is welded and fixed to the square steel pipe 31 of the exterior panel 30 that is the lower end of the hanging wall 3 of this floor.

FIG. 2 is an enlarged view of a portion surrounded by a broken line A in FIG.
A draining drainer (discarding headboard) 50 is fixed to the rectangular steel pipe 31 of the exterior panel 30 as a lower frame located at the lower end of the outer sash 40, that is, the upper end of the waist wall 2. That is, the draining drainer 50 includes a draining body 51 that falls as it goes outdoors, and a rising portion 52 formed on the indoor side of the draining body 51. With the distal end side of the draining body 51 of the draining drainer 50 covering the upper end surface of the heat insulating material 32 of the exterior panel 30, the proximal end side of the draining body 51 is fixed to the square steel pipe 31 of the exterior panel 30 with screws 53. .

The lower end of the external sash 40 is welded and fixed to the square steel pipe 31 of the exterior panel 30 via an angle member 41.
A permanent drainer 42 is attached to the lower end of the external sash 40. The base end side of the permanent drainer 42 is fixed to the lower end of the external sash 40 with a screw 43 and is fixed to the angle member 41 by welding. The tip end side of the permanent drainer 42 covers the discarded drainer 50.
A sealing material 44 is placed in the gap between the lower end of the external sash 40 and the main drainer 42. A sealing material 45 is placed in the gap between the tip of the main drainer 42 and the heat insulating material 32 (the discarded drainer 50) of the exterior panel 30.

The procedure for attaching the external sash 40 as described above to the building 1 will be described with reference to the flowchart of FIG.
As an initial state, the steel frame is constructed including the outer peripheral steel beam 10, the exterior panel 30 is attached, and the floor slab 20 is constructed. At this time, the temporary handrail 21 is attached to the floor slab 20 (see FIG. 1).

In step S1, a draining drainer 50 is attached to the upper end of the waist wall 2 as shown in FIG.
That is, the draining drainer 50 is fixed to the square steel pipe 31 of the exterior panel 30 positioned at the upper end of the waist wall 2 with the screws 53 so as to cover the upper end surface of the heat insulating material 32 of the exterior panel 30.

In step S2, the spark curing material 60 is temporarily fixed to the discarded drainer 50 as shown in FIG.
FIG. 5 is a perspective view of the spark curing material 60. The spark curing material 60 is made of steel, for example, formed by bending a galibarium steel plate having a thickness of 0.6 mm, a length of 2 m, and a width of 30 cm. The spark curing material 60 includes a spark receiving portion 61 whose outdoor side is curved upward, and a rising portion 62 formed on the indoor side of the spark receiving portion 61. A through hole 63 is formed in the spark receiver 61. A master rope 65 as a string-like member having hooks 64 attached to both ends is prepared, and the hook 64 on one end side of the master rope 65 is connected to the through hole 63.
It arrange | positions so that the spark receiving part of the spark curing material 60 may protrude outside, and the rising part 62 of this spark curing material 60 is temporarily fixed to the rising part 52 of the draining drainer 50 with the screw 66 from the indoor side. At this time, the number of attachment points of the screws 66 per one spark curing material 60 is, for example, three. Further, after the spark curing material 60 is temporarily fixed with the screws 66, the hook 64 on the distal end side of the parent rope 65 is connected to the temporary handrail 21.

In step S3, as shown in FIG. 6, the external sash 40 is attached.
That is, the external sash 40 is disposed between the lower exterior panel 30 (waist wall 2) and the upper exterior panel 30 (dripping wall 3) on the floor for positioning. Next, the lower end of the outer sash 40 is welded and fixed to the rectangular steel pipe 31 of the upper exterior panel 30, and the lower end of the outer sash 40 is welded to the rectangular steel pipe 31 of the lower outer panel 30 via the angle member 41. Fix it. At this time, the welding spark S of the external sash 40 is received by the spark receiving portion 61 of the spark curing material 60.
As a result, a gap d is formed between the lower end of the external sash 40 and the square steel pipe 31 at the upper end of the waist wall 2.

In step S4, the spark curing material 60 is removed as shown in FIG.
That is, the impact driver 67 is inserted into the gap d from the indoor side, and the screw 66 temporarily fixing the spark curing material 60 is removed. Thereafter, the spark curing material 60 is taken into the indoor side, and the hook 64 connected to the temporary handrail 21 is removed.
In step S <b> 5, a permanent drainer 42 is attached to the lower end of the external sash 40 with screws 43.

According to this embodiment, there are the following effects.
(1) The spark curing material 60 with the outdoor side curved upward was discarded and attached to the drainer 50. When the external sash 40 is attached to the structure by welding, the spark curing material 60 receives the welding spark S of the external sash 40, so that the heat insulating material 32 provided on the outer wall surface and the glass window on the lower floor are surely welded spark S. Can be cured from.
Further, since the spark curing material 60 is discarded and temporarily fixed to the drainer 50 with the screws 66, the spark curing material can be easily attached. Further, when removing the spark curing material 60, it is only necessary to insert the impact driver 67 from the indoor side into the gap d between the building 1 and the lower end of the external sash 40 and remove the screw 66, so that the spark curing material 60 can be easily removed. It is.
Since the spark curing material 60 can be diverted to other floors and structures, the production number of the spark curing material 60 can be reduced, so that the construction cost can be reduced.

  (2) The master rope 65 is attached to the spark curing material 60 and the master rope 65 is temporarily fixed to the temporary handrail 21 of the building 1 during the period in which the spark curing material 60 is temporarily fixed. Therefore, since the spark curing material 60 is connected to the building 1 by the master rope 65, it is possible to prevent the spark curing material 60 from falling even if the screws 66 that temporarily fix the spark curing material 60 are removed.

  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.

DESCRIPTION OF SYMBOLS 1 ... Building (structure) 2 ... Waist wall 3 ... Dripping wall 10 ... Outer steel beam 11 ... Fireproof coating 12 ... Rock wool 13 ... Fireproof board 20 ... Floor slab 21 ... Temporary handrail 30 ... Exterior panel 31 ... Square steel pipe ( Lower frame) 32 ... heat insulating material 40 ... external sash 41 ... angle material 42 ... permanent drainer 43 ... screw 44 ... sealing material 45 ... sealing material 50 ... discarded drainer 51 ... discarded drainer body 52 ... rising part 53 ... screw 60 ... spark Curing material 61 ... Spark receiving part 62 ... Rising part 63 ... Through hole 64 ... Hook 65 ... Master rope (string-like member) 66 ... Screw 67 ... Impact driver

Claims (2)

A sash attachment method in which a sash is attached to a structure having a heat insulating material attached to an outer wall surface by welding,
A step of attaching a drainer with a rising portion formed on the indoor side so as to cover the upper end surface of the heat insulating material on the lower frame located under the sash;
A step of temporarily fixing a spark curing material whose outdoor side is curved upward to the rising portion of the draining drainage with a screw;
Attaching the sash to the structure by welding;
The step of removing the spark curing material by inserting a screwdriver from the indoor side into the gap between the structure and the lower end of the sash, and removing the screw,
And a step of attaching a drainer to the lower end of the sash. A string member is attached to the spark curing material,
After temporarily fixing the spark curing material with screws from the indoor side, temporarily fix the tip of the string-like member to the structure,
The sash attachment method according to claim 1, wherein after the spark curing material is removed, the string-like member is removed from the structure.

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