JP4709321B1 - Exterior wall panel mounting method and exterior wall panel mounting jig - Google Patents

Abstract

An outer wall panel mounting method and an outer wall panel mounting jig capable of efficiently vertically stretching an outer wall panel are provided.
An outer wall panel mounting method in which outer wall panels P are vertically stretched in order from a lower floor in a building, the step of aligning a plurality of outer wall panels P and arranging them on a hanging jig 10, a first connecting portion 14c and a first connecting portion 14c. A process of forming a unit by fixing CT steel 14 having two connecting portions 14d to the upper end portion of the outer wall panel P, and a grounding step including a step of connecting the first connecting portion 14c and the hanging jig 10; An arrangement step of arranging the unitized outer wall panel P from the outside to the mounting position and the second connecting portion 14d and the housing slab 21 are connected to fix the upper end side of the outer wall panel P to the building, and the outer wall An outer wall panel fixing step of fixing the lower end side of the outer wall panel P to the building by locking the Z clip 15 attached to the lower end side of the panel P to the CT steel 14 on the lower floor side.
[Selection] Figure 5

Description

  The present invention relates to an outer wall panel mounting method and an outer wall panel mounting jig for vertically stretching an outer wall panel on a casing.

Conventionally, as an outer wall of a building, an outer wall panel such as an extruded cement board excellent in durability and aesthetic appearance, ALC, a metal panel or the like is used. When attaching an outer wall panel to a building frame, it is common to use an external scaffold arranged in parallel around the frame. For example, lifting the extruded cement board using a baby hoist externally mounted scaffolding (Agekasane machine), prior to construction method of attaching the outer wall panels in welded underlying hardware to skeleton are known.

Since the above construction method requires an external scaffold, it is difficult to adopt it as a construction method for high-rise buildings. For this reason, the mounting method of the outer wall panel which does not require an external scaffold is examined (for example, refer patent document 1). The construction method described in Patent Document 1 is a vertical stretch construction method in which a plurality of outer wall panels are assembled into a unit, the unitized outer wall panels are lifted and attached to the housing in a lump, and work is performed according to the following procedure. First, an upper base metal fitting is attached to the upper side of a plurality of flat outer wall panels, and a locking tool is attached to the lower side to temporarily fix the ruler material with the locking tool. The lower base hardware is welded and fixed to the building frame. Next, a hanging tool is attached to the unitized outer wall panel and lifted to the mounting position of the housing . Then, the upper base metal of the unitized outer wall panel is welded to the casing, the ruler material at the lower part of the unitized outer wall panel is removed, and the locking tool is attached to the lower base hardware of the casing and welded.

  The reason for temporarily fixing the lower side of the unitized outer wall panel and the reason not to attach the lower base metal to the outer wall panel in the same way as the upper base metal This is to prevent the workability from being lowered by adopting a construction method that avoids attaching to the housing and can absorb subtle construction errors.

JP 2004-346601 A

  However, in the outer wall panel mounting method described in Patent Document 1, it is necessary to weld the lower base metal hardware in advance to the building side, and thus the external scaffold may not be completely eliminated. For example, as shown in FIG. 10, since the lower base metal 102 is welded to the outer end of the slab 21 on the work floor, an external scaffold 100 is necessary for the drop curing 101 of the spark 99 generated during field welding. It becomes.

  On the other hand, it is conceivable to attach the lower base metal to the outer wall panel as well as the upper base metal. However, as described above, there is a possibility that a subtle construction error cannot be absorbed and a lifting weight may be increased.

  Then, this invention is made | formed in order to solve such a technical subject, Comprising: It aims at providing the outer wall panel attachment construction method which can vertically stretch an outer wall panel efficiently.

An outer wall panel mounting method according to the present invention is an outer wall panel mounting method in which an outer wall panel of a building is vertically stretched in order from a lower floor, and a plurality of the outer wall panels are aligned in a direction intersecting with a longitudinal direction of the outer wall panel. placing on the hanging jig by fixedly provided by placing the ingredients so straddle all of the exterior wall panel in the longitudinal direction an upper end portion of the base member and the outer wall panel having a first connecting part and the second connecting portion the step of unitizing a plurality of said outer wall panels and, to Agekasane and earth set step, the hanging jig comprising a step of detachably connecting the first connecting portion and the hanging jig, outside the building The arrangement step of arranging the unitized outer wall panel from the mounting position to the building mounting position of the building, and by connecting the second connecting portion and the building casing at the mounting position, the length of the outer wall panel Direction top A longitudinal bottom of the is fixed to the building frame, wherein the outer wall panel engaged thereby in the base component of the lower floors side fitted with a longitudinal lower end lower section engaging attached to side stop member in advance of the outer wall panel And an outer wall panel fixing step for fixing the part side to the casing.

The outer wall panel mounting method according to the present invention, in the ground assembly process, solid-set by placing the base member in the longitudinal direction an upper end portion of the outer wall panels all of the outer wall panel straddled ingredients so on. In this way, since a plurality of outer wall panels are integrated with only one base member, the weight of the unitized outer wall panel can be reduced, and the base member is fixed so that the unit can be used during lifting . It is possible to appropriately prevent falling of the outer wall panel. Moreover, since welding etc. which fix a base member and an outer wall panel can be performed in a grounding process, only the 2nd connection part of a base member and the building frame are connected in an outer wall panel fixing process. The upper end side of the outer wall panel is fixed to the housing. For this reason, the work of attaching the base member by welding to the housing side in advance is unnecessary, and as a result, the external scaffold can be made unnecessary. Furthermore, in the outer wall panel fixing step, the lower locking member attached to the lower end side of the outer wall panel is locked and fixed to the lower floor side base member. As described above, the base member can be used as a connection member and a housing attachment member on the upper end side, and also as a member to which the lower locking member of the unitized outer wall panel on the higher floor side is locked. For this reason, it becomes possible to vertically stretch the outer wall panel on the building with a small number of base members. Therefore, the outer wall panel can be vertically stretched efficiently.

  Here, the grounding step may include a step of attaching a lower locking member to the lower end side in the longitudinal direction of each of the outer wall panels. Thus, by attaching the lower locking member at the time of the ground assembly, the outer wall panel fixing step can be performed quickly.

  In addition, it is preferable that after the outer wall panel fixing step, there is a removal step of disconnecting the first connecting portion and the hanging jig. By comprising in this way, since a hanging jig | tool can be open | released after attaching an outer wall panel to a building, it becomes possible to prevent the fall of an outer wall panel at the time of attachment.

  Moreover, the said assembly process may attach an upper locking member to the longitudinal direction upper end part side of each said outer wall panel, and may weld it in the state which locked the said base member and the said upper locking member. By comprising in this way, an outer wall panel can be attached to a building, without welding a base member to the building side.

Further, the grounding step uses CT steel as the base member, and arranges the corner of the upper end in the longitudinal direction of the outer wall panel inside the building at the inner corner of the CT steel. A portion of the plate portion is welded to the upper locking member in a state of protruding from the edge of the upper end portion of the outer wall panel along the longitudinal direction of the outer wall panel, and the outer wall panel fixing step includes the lower part of the outer wall panel. It is preferable that the locking member is locked and fixed to a part of the upper plate portion of the CT steel on the lower floor side.

  By configuring in this way, one CT steel is used as a connection member and a housing attachment member on the upper end side, and as a member to which the lower locking member of the unitized outer wall panel on the higher floor side is locked. Can also be used.

  Furthermore, the connection of the first connection part and the second connection part may be a connection by screws. By comprising in this way, the operation | work accompanying a connection can be made efficient.

Further, the outer wall panel mounting jig according to the present invention is an outer wall panel mounting jig for vertically stretching the outer wall panel of a building in order from the lower floor, and is fixed only to the upper end in the longitudinal direction of the plurality of outer wall panels. The plurality of outer wall panels are unitized, and the upper end in the longitudinal direction of the outer wall panel and the lower end in the longitudinal direction of the outer wall panel attached to the upper floor side are fixed to the building in a state where the outer wall panel is unitized. A grounding member, and a hanging jig for lifting the unitized outer wall panel, wherein the grounding member is detachably connected to the first jig and the building to be detachably coupled to the hanging jig. capable has a second connecting portion connected, the hanging jig, the underlying said Agekasane capable structure of the outer wall panel of the first connecting portion as hanging support point for fall prevention of the outer wall panel members Is the fact characterized.

According to the outer wall panel mounting jig according to the present invention, the plurality of outer wall panels are unitized by the base member by fixing only the upper end in the longitudinal direction, and are connected by the base member and the first connecting portion. The unitized outer wall panel is lifted by a hanging jig having a suspension support point as a unit. Thus, since a plurality of outer wall panels are integrated with only one base member, the weight of the unitized outer wall panel can be reduced, and a hanging jig is attached to the base member fixed to the outer wall panel. by lifting and coupling, it is possible to Agekasane the exterior wall panel in a completely fixed state. Therefore, it is possible to appropriately prevent the unitized outer wall panel from being dropped during lifting . In addition, since the upper end side of the outer wall panel is fixed to the housing simply by connecting the second connecting portion of the base member and the housing of the building, the work of attaching the base member to the housing in advance by welding is unnecessary. It is possible to eliminate the need for an external scaffold. Further, the base member can be used as a lower end fixing member of the unitized outer wall panel on the upper floor side as well as being used as a connecting member and a housing attachment member on the upper end side. For this reason, it becomes possible to vertically stretch the outer wall panel on the building with a small number of base members. Therefore, the outer wall panel can be vertically stretched efficiently.

  Here, the base member is CT steel having an upper plate portion and an upright portion erected at the center of the upper plate portion, and is an upper end portion in the longitudinal direction of the outer wall panel and located inside the building. A corner portion to be accommodated in an inner corner portion of the CT steel, and a part of the upper plate portion projects from the edge of the upper end portion of the outer wall panel along the longitudinal direction of the outer wall panel to a plurality of outer wall panels. A part of the upper plate portion that is fixed and protrudes along the longitudinal direction of the outer wall panel is configured to fix a lower end portion in the longitudinal direction of the outer wall panel attached to a higher floor side to the building. Also good.

  According to the present invention, the outer wall panel can be vertically stretched efficiently.

It is a perspective view explaining the outer wall panel mounting jig which concerns on embodiment of this invention. FIG. 2 is a perspective view in which a unitized outer wall panel is loaded on the hanging jig of FIG. 1. It is a side view which shows a part of outer wall panel and outer wall panel attachment jig | tool shown in FIG. It is a schematic diagram explaining the lifting and arrangement of the outer wall panel and outer wall panel mounting jig shown in FIG. It is a perspective view explaining the detail of attachment of an outer wall panel. It is sectional drawing of the orthogonal | vertical direction of an outer wall panel. It is sectional drawing of the horizontal direction of an outer wall panel. It is sectional drawing of the perpendicular direction of a building. It is sectional drawing of the perpendicular direction which shows the example of attachment of another outer wall panel. It is a schematic diagram explaining the necessity of the conventional external scaffold.

  Embodiments according to the present invention will be described below with reference to the accompanying drawings. In addition, the dimension ratio in a figure does not necessarily correspond with the thing in description.

The outer wall panel mounting method and outer wall panel mounting jig according to the present embodiment are a method and jig for vertically stretching outer wall panels such as an extruded cement board, ALC, and metal panel in order from the lower floor to the higher floor of the building. A construction method and a jig in which a plurality of outer wall panels are assembled into a unit, and the unitized outer wall panels are lifted and collectively attached to a building frame. In the following, unless otherwise specified, the terms “upper” and “lower” are used as a reference when lifting (that is, when the building is attached). In consideration of ease of understanding, a case where an extruded cement board is used as the outer wall panel will be described below.

  First, the outer wall panel mounting jig according to the present embodiment will be described. The outer wall panel mounting jig includes a hanging jig and a base member. FIG. 1 is a schematic diagram illustrating a hanging jig of an outer wall panel mounting jig according to the present embodiment. FIG. 2 is a perspective view in which an outer wall panel unitized by a base member is loaded on the hanging jig of FIG. FIG. 3 is a side view showing a part of the outer wall panel and the outer wall panel mounting jig shown in FIG. 2. 1 to 3 show a state where the hanging jig is placed flat.

  As shown in FIG. 1, the hanging jig 10 is a lattice-shaped frame body made of linear shaped steel having substantially the same length, and is an upper shaped steel 10 a that is the uppermost side when lifted, and a lowermost side. The lower section steel 10b, the upper section steel 10a, and the lower section steel 10b are connected to each other so as to connect a pair of side section steels 10c. Between the upper section steel 10a and the lower section steel 10b, a plurality of section steels 10d are arranged in parallel with a gap, and between the side section sections 10c, a plurality of section steels 10e are arranged in parallel with a gap. Yes. As the upper section steel 10a, the side section steel 10c and the section steel 10e, for example, H-section steel is used, and as the lower section steel 10b and the section steel 10d, for example, groove-section steel is used. In addition, the length of said shape steel is 6 m, for example. Moreover, as shown in FIG. 2, the outer wall panel P is laid flat and loaded on the structural steel 10d and the lower structural steel 10b of the hanging jig 10 placed flat. The outer wall panel P is a substantially rectangular extruded cement board, and a plurality of through-holes Pa extending in the longitudinal direction are formed in the outer wall panel P.

  On the upper surface of the upper section steel 10a of the suspension jig 10, a plurality of plate-shaped suspension fittings 11 having through-holes are erected at intervals. The chain block 50 is inserted into the through hole of the hanging metal fitting 11 and is lifted through the wire 12. Here, an example is shown in which two suspension brackets 11 are erected on the upper surface of the upper section steel 10a and can be suspended at two points. Three or more suspension fittings 11 may be provided. Further, as shown in FIG. 3, a suspension fitting 51 is erected on the upper side of the shape steel 10 e so as to protrude in a direction opposite to the mounting side of the outer wall panel P. In addition, the chain block 50 is inserted through the through hole of the hanging bracket 51.

  Further, as shown in FIG. 1, the section steel 10d and the lower section steel 10b are provided with a plurality of hits (tops) 13 for positioning the outer wall panel in the lateral direction on the surface on which the outer wall panel P is placed. It has been. Here, the top 13 is a substantially quadrangular prism-shaped protrusion extending along a direction orthogonal to the extending direction of the section steel 10d and the lower section steel 10b, and the corners on both sides against which the outer wall panel is abutted are cut. It has a tapered cross section.

  Moreover, as shown in FIG. 3, the plate-shaped member 10g is attached to the lower surface of the lower section steel 10b. The plate-like member 10g is attached so that its main surface faces the lower surface of the lower section steel 10b and its end 10h protrudes from the edge of the lower section steel 10b to the mounting surface side of the outer wall panel P. The end portion 10h functions as a contact for positioning the outer wall panel P in the vertical direction during assembly, and also functions as a member that supports the outer wall panel during lifting. The protrusion width of the end 10h will be described later.

  A plurality of fall prevention members 10f, which are detachably connected to the base member 14, are attached to the structural steel 10d adjacent to the upper structural steel 10a at intervals in the longitudinal direction of the structural steel 10d. The fall prevention member 10f is a plate-like member and has an L-shaped main surface, and both ends of the main surface are bent to form arms. Each arm part is provided with a through hole, and one arm part is fixed to the bottom plate part of the shaped steel 10d by, for example, screwing. The connection of the other arm (connection to the base member 14) will be described later.

Next, details of the base member 14 will be described. Here, the base member 14 is made of CT steel 14 having a T-shaped cross section. The CT steel 14 includes an upper plate portion 14a that constitutes an upper portion of the T shape, and an upright portion 14b that is erected at the center of the upper plate portion 14a. CT steel 14, the corner portions Pb accommodated in the upper portion of the interior major surface of the outer wall panel P to the inner corner, are arranged only in the upper portion of the outer wall panel P all of the outer wall panel P to straddle immediately so Fixed. For example, Z clips (upper locking members and lower locking members) 15 for attaching the panels are screwed with bolts and nuts to the four corners of one main surface of the outer wall panel P that is the upper surface side in a flat state. It is attached and the outer wall panel P and the CT steel 14 are fixed by fixing the Z clip 15 and the upper plate portion 14a of the CT steel 14 by welding.

  Further, a part of the upper plate portion 14a of the CT steel 14 is in a state of protruding from the edge of the upper end portion of the outer wall panel along the longitudinal direction of the outer wall panel. A through hole into which a fastener such as a screw can be inserted is formed in a part of the protruding upper plate portion 14a to form the first connecting portion 14c. A plurality of through-holes in the first connecting portion 14c are formed along the longitudinal direction of the CT steel 14 so as to correspond to the through-hole formed in the other arm portion of the fall prevention member 10f. The CT steel 14 and the suspension jig 10 are detachably connected to each other by positioning the through hole of the first connecting portion 14c and the through hole of the fall preventing member 10f with screws and bolts.

  Moreover, the 2nd connection part 14d which can be connected with a building is formed in the outer side of the upper board part 14a of CT steel 14. As shown in FIG. The second connecting portion 14d is formed by bending a rectangular belt-shaped metal piece into an L shape, and a through hole 14g is provided in a standing portion that is erected by bending. For example, the second connecting portion 14 d is arranged and welded to the upper plate portion 14 a of the CT steel 14 so that the penetration direction of the through hole 14 g is along the longitudinal direction of the CT steel 14. The second connecting portion 14d is not limited to the L shape, and may be formed by standing a rectangular belt-shaped hardware having a through hole on the upper plate portion 14a of the CT steel 14.

  A plurality of outer wall panels P are vertically stretched on the building using the above-described suspension jig 10 and CT steel 14. Below, the detail is demonstrated about the outer wall panel attachment construction method which concerns on this embodiment.

(Ground assembly process)
Before lifting the lifting jig 10, as shown in FIG. 1, the lifting jig 10 is laid flat in a predetermined work yard, and the outer wall panel is unitized and attached to the lifting jig 10. First, as shown in FIG. 2, a plurality of outer wall panels P are arranged on the hanging jig 10 while being aligned. At this time, the outer wall panel P may be aligned using the top 13 or the end 10h of the plate-like member 10g. The plurality of outer wall panels P are aligned and placed flat in a direction crossing the longitudinal direction of the outer wall panel P. Here, the longitudinal direction of the outer wall panel P is about 4 m (corresponding to the height of the first floor), and a plurality of the panels are arranged in parallel on the hanging jig 10 having a width of about 6 m. The main surface of the outer wall panel P which is the upper surface side in the flat state is an interior main surface arranged facing the inside of the building, and the main surface of the outer wall panel P which is the lower surface side in the flat state is facing the outside of the building. It becomes the exterior main surface to be arranged.

  After the outer wall panel P is arranged on the hanging jig 10, the upper locking member and the lower locking member for mounting the panel are respectively bolts and nuts at the four corners on the upper end side and the lower end side of the interior main surface of one panel. Install with screws. In each of the four corners of the outer wall panel P, through holes that communicate with the through hollow portion Pa are formed. As shown in FIGS. 2 and 3, a Z clip 15 formed by bending a rectangular belt-shaped metal piece into a Z shape is used as the locking member. In one end portion of the Z clip 15, a long hole is formed along the longitudinal direction of the Z clip 15 so as to insert a bolt. The Z clip 15 is disposed on the interior main surface so that the longitudinal direction thereof is along the longitudinal direction of the outer wall panel P, and the bolt is inserted through the hollow portion by aligning the long hole of the Z clip 15 and the through hole of the outer wall panel P. The Z clip 15 is fixed to the outer wall panel P by inserting it into the interior of Pa, screwing it into a nut arranged inside the through hollow portion Pa, and tightening. Thus, one end of the Z clip 15 is in close contact with the outer wall panel P, and the other end of the Z clip 15 is fixed with a gap provided between the Z clip 15 and the outer wall panel P. Here, the Z clip 15 is attached so that the other end portion faces the upper end portion side of the outer wall panel P. If the nut is not completely tightened, the Z clip 15 can be moved and adjusted in the longitudinal direction by the amount of play of the long hole, and can also be rotated around the bolt. In addition, you may implement the attachment operation | work of said Z clip 15 in the temporary storage place before arrange | positioning in a work yard. In this case, since the time for one unit to occupy the work yard is shortened, more efficient attachment work can be performed.

Next, place the CT steel 14 immediately so it straddles all of the outer wall panel P to the upper portion of the outer wall panel P. The corner Pb at the upper end on the interior main surface side of the outer wall panel P is arranged at the inner corner of the CT steel 14, and the CT steel 14 is placed in the gap provided between the Z clip 15 and the interior main surface. The one end portion of the plate portion 14a is sandwiched and locked. In the above state, the Z clip 15 and one end of the upper plate portion 14a of the CT steel 14 are fixed by welding (Y in FIG. 3). By welding all the Z clips 15 arranged on the upper end side and the CT steel 14, the upper end portions of the plurality of outer wall panels P and the CT steel 14 are fixed. Can do.

  Next, the CT steel 14 and the hanging jig 10 are detachably connected. By aligning a through hole provided in a part of the upper plate portion 14a (first connecting portion 14c) of the CT steel 14 and a through hole provided in the other arm portion of the fall prevention member 10f, a bolt and a nut are used. It connects by screwing (the 1st connection part 14c in FIG. 3). By performing this connection at a plurality of locations, the CT steel 14 and the hanging jig 10 are detachably connected via the fall prevention member 10f.

  Next, a plurality of second connecting portions 14 d for connecting to the building frame are attached to the upper plate portion 14 a of the CT steel 14 at intervals in the longitudinal direction of the CT steel 14. The second connecting portion 14d is arranged and welded to the upper plate portion 14a of the CT steel 14 so that the penetrating direction of the through hole 14g of the second connecting portion 14d is along the longitudinal direction of the CT steel 14. The second connecting portion 14d may be welded to the CT steel 14 in advance before bringing the CT steel 14 into the work yard.

  The ground assembly process is thus completed. In addition, you may perform the grounding process demonstrated above changing process order. For example, after welding the 2nd connection part 14d to CT steel 14, it connects with the suspension jig | tool 10, Then, the outer wall panel P may be put in order and Z clip 15 may be attached and welded. Moreover, although omitted in the description of the above-mentioned grounding process, sealing between the outer wall panels P and mounting of gaskets described later, and mounting of a gasket between the outer wall panel P and the CT steel 14 are also performed in the grounding process. Further, as shown by a two-dot chain line in FIG. 3, even if the lower end portion of the outer wall panel P is temporarily fixed to the suspension jig 10 with a scissors vise 16 in order to improve the stability during lifting and prevent falling. Good. The scissors vise 16 may be connected to the hanging jig 10 by a fall prevention wire.

(Arrangement process)
When the grounding process is completed, the hanging jig 10 is lifted by the crane 17 and the unitized outer wall panel P is transported to the mounting position. FIG. 4 is a schematic diagram for explaining the lifting and arrangement of the outer wall panel and the hanging jig shown in FIG. As shown in FIG. 4, the outer wall panel P unitized by the crane 17 from the outer side of the building 20 to the attachment position of the housing of the building 20 is arrange | positioned. When arranging, for example, an operator may adjust the attachment position from the inside of the building. Further, when temporarily tightening using the scissors vise 16, the scissors vise 16 is disposed after being removed near the mounting position. In addition, as shown in FIG. 3, since the lower end part of the unitized outer wall panel P is arrange | positioned so that it may be accommodated in the inner corner part of CT steel 14 of a low-rise floor side, it is CT at the time of arrangement | positioning of an outer wall panel. The protruding width of the end portion 10h is adjusted in advance so that the standing portion 14b of the steel 14 and the end portion 10h of the plate-like member 10g of the hanging jig 10 do not hit each other.

(Outer wall panel fixing process)
When the arrangement process is completed, the outer wall panel is fixed to the housing of the building 20. Before this step, a mounting fastener (embedded metal) for connecting to the unitized outer wall panel P is attached to the housing of the building 20. FIG. 5 is a perspective view illustrating details of attachment of the outer wall panel P. FIG. As shown in FIG. 5, the attachment fastener 22 includes a main body portion 22a formed by bending a rectangular plate-shaped hardware into an L shape, and an embedding foot portion 22b extending from an inner corner of the main body portion 22a. And a mounting portion 22c that is provided upright at the center of the main surface on the outside of the main body portion 22a and has a through hole 22d. In the mounting fastener 22, the inner corner of the main body 22 a is abutted against the corner of the upper surface of the housing slab 21, the mounting portion 22 c protrudes from the upper surface of the housing slab 21, and the through direction of the through hole 22 d is the housing slab 21. The foot 22b is embedded and fixed inside the housing slab 21 so as to be in the direction along the end of the slab. A plurality of mounting fasteners 22 are provided at positions corresponding to the second connecting portions 14 d of the CT steel 14 with a space in the direction along the end of the housing slab 21.

  First, the mounting portion 22c of the mounting fastener 22 and the second connecting portion 14d of the CT steel 14 are abutted to align the through hole 22d of the mounting portion 22c and the through hole 14g of the second connecting portion 14d. And it connects by the screw stop with a volt | bolt and a nut. By performing this connection at a plurality of locations, the upper end side of the outer wall panel P is fixed to the housing slab 21. Then, the screw of the Z clip 15 provided on the lower end side of the outer wall panel P is loosened and reversed 180 degrees, and is locked in advance with the CT steel 14 attached to the lower slab body slab 21 to The lower end side is fixed to the housing slab 21.

(Removal process)
After the outer wall panel fixing step, the screw connection at the first connecting portion 14c that has connected the outer wall panel P and the hanging jig 10 is loosened to release the connection. At this time, since the center of gravity of the entire lifting jig 10 is different from that when the panel is loaded (when lifting), the removed hanging jig 10 may be inclined toward the building. Thus, when the hanging jig 10 is inclined toward the building, the end 10h of the plate-like member 10g, which is the lower end of the hanging jig 10, may damage the outer wall panel P on the lower layer side. For this reason, a force in the direction of the outside of the building is applied to the hanging jig 10 via the hanging fitting 51, and the hanging jig 10 is removed while being in a substantially vertical state. Thus, by applying force to the hanging jig 10 not only in the vertical direction but also in the horizontal direction and removing it, the hanging jig 10 can be prevented from inclining to the building side. Further, even when the hanging jig 10 is slightly inclined toward the building side, the end portion so that the end portion 10h of the plate-like member 10g that is the lower end of the hanging jig 10 does not hit the outer wall panel P on the lower layer side. 10h is preferably chamfered. After releasing the hanging jig 10, it is returned to the work yard, and the attachment of the outer wall panel P to the building side is completed.

The outer wall panel P can be attached to the building slab of the building by repeatedly executing the above steps according to the outer wall area and the number of floors of the building. In addition, when there is a margin in the work yard, two suspension jigs 10 are arranged so that one suspension jig 10 is lifted while the other suspension jig 10 is grounded. Therefore, work waiting time can be shortened and efficiency can be improved.

  Next, the detailed structure between the outer wall panels P is demonstrated. First, the details of the mounting structure for each floor will be described. FIG. 6 is a cross-sectional view of the outer wall panel P in the vertical direction. FIG. 6 shows a cross-sectional view of a connecting portion between the outer wall panel P at the Nth floor and the outer wall panel P at the (N + 1) th floor. As shown in FIG. 6, the Z clip 15 at the upper end of the outer wall panel P of the N floor portion has a hard packing 26 disposed between the interior main surface of the outer wall panel P and the upper plate portion 14 a of the CT steel 14. In the state where the gasket 27 and the rock wool 28 such as EPDM are arranged in order from the right between the upper end surface of the outer wall panel P and the standing part 14b of the CT steel 14, the outer wall panel P is screwed to the CT steel 14 Welded. At this time, rust prevention repairs may also be performed. The process so far is performed in the ground assembly process.

  On the other hand, after attaching the outer wall panel P of the Nth floor part, a drainer 25 is formed that communicates from the upper tip side of the upper plate portion 14a of the CT steel 14 to the tip side of the standing portion 14b through the corner. And the Z clip 15 at the lower end of the outer wall panel P of the (N + 1) th floor portion is a vertical gasket 31 and a hard packing in order from the top between the interior main surface of the outer wall panel P of the (N + 1) th floor portion and the upper plate portion 14a of the CT steel 14. 32 and is further locked to the CT steel 14 with a hard packing 34 disposed between the lower end surface of the outer wall panel P and the standing portion 14b of the CT steel 14. A seal or gasket 24 disposed between the outer wall panel P of the Nth floor part and the outer wall panel P of the N + 1th floor part is attached later with a gondola or the like. In addition, the seal 30 on the side of the outer wall panel P is performed after the outer wall panel is attached because it takes days to cure the seal 30.

  Next, details of the mounting structure of adjacent outer wall panels will be described. FIG. 7 is a cross-sectional view of the outer wall panel P in the horizontal direction. In FIG. 7, the horizontal cross section in the position close | similar to the lower end part side of the outer wall panel P is shown. As shown in FIG. 7, adjacent outer wall panels P are connected to each other by an uneven fitting C, and a seal or gasket 35 is formed. In FIG. 7, the welding location between the upper plate portion 14 a of the CT steel 14 and the second connecting portion 14 d is indicated by Y.

As described above, according to the outer wall panel mounting jig according to the present embodiment, the CT steel 14 unitizes the plurality of outer wall panels P by fixing only the upper end portion in the longitudinal direction, and the CT steel 14 and the first connecting portion. The unitized outer wall panel P is lifted by the lifting jig 10 having the lifting support point 14c. As described above, since the plurality of outer wall panels P are integrated with only one CT steel 14, the weight of the unitized outer wall panel P can be reduced, and the CT steel 14 fixed to the outer wall panel P can be achieved. by lifting and coupling the lifting jig 10, it becomes possible to Agekasane an outer wall panel P in a completely fixed state. Therefore, it is possible to appropriately prevent the unitized outer wall panel P from being dropped during lifting . Moreover, since the upper end part side of the outer wall panel P is fixed to a housing only by connecting the 2nd connection part 14d of CT steel 14, and the housing of a building, the operation | work which attaches a base member by welding to a housing side beforehand becomes unnecessary. As a result, an external scaffold can be eliminated. Furthermore, the CT steel 14 can be used as a connecting member and a housing attachment member on the upper end side, and also as a member to which the lower locking member of the unitized outer wall panel P on the higher floor side is locked. For this reason, it becomes possible to vertically stretch the outer wall panel P on the building with a small number of base members. In this way, the outer wall panel P can be effectively vertically stretched by eliminating the need for an external scaffold, securely fixing the outer wall panel to the hanging jig, and further reducing the number of parts used for the mounting work.

Similarly, in the outer wall panel mounting method according to the present embodiment, in the land set step, fixedly provided by placing the CT steel 14 in the longitudinal direction an upper end portion of the outer wall panel P all of the outer wall panel P straddled ingredients so on. Thus, it is possible to reduce the weight of the one since a plurality of external wall panels P are integrated only in CT steel 14 unitized outer wall panel P, fried because CT steel 14 is fixedly it is possible to appropriately prevent falling unitized outer wall panels P at the time heavy. In particular, extruded cement boards are generally more slippery than lightweight cellular concrete boards, and the risk of dropping cannot be eliminated only by tightening with a squeaker, etc., but dropping by adopting the outer wall panel mounting method of this embodiment Can be reliably prevented. Moreover, since the upper end part side of the outer wall panel P is fixed to the frame slab 21 only by connecting the 2nd connection part 14d of CT steel 14, and the fastener 22 for attachment of the frame slab 21 of a building in an outer wall panel fixing process. The base member does not need to be welded on the housing side, and as a result, an external scaffold can be eliminated. For this reason, it can be adopted not only for low- and middle-rise buildings but also for buildings such as high-rise buildings. Further, in the outer wall panel fixing step, the Z clip 15 attached to the lower end side of the outer wall panel P is locked and fixed to the CT steel 14 on the lower floor side. As described above, the CT steel 14 is used as a connection member on the upper end side and an attachment member to the frame slab 21 and also as a member to which the Z clip 15 of the unitized outer wall panel P on the higher floor side is locked. Can be used. For this reason, as shown in FIG. 8, for example, the outer wall panel P can be vertically stretched on the building with one CT steel 14 per floor without using a plurality of section steels per floor. Therefore, improvement of work efficiency, reduction of material cost, and weight reduction of a building can be realized.

  Further, in the outer wall panel mounting method according to the present embodiment, since the Z clip 15 is attached to the lower end side in the longitudinal direction of each outer wall panel P in the grounding process, the outer wall panel fixing process is performed smoothly and quickly. Can do.

  Moreover, in the outer wall panel attachment construction method according to the present embodiment, after the outer wall panel fixing step, after the outer wall panel P is attached to the building, there is a removal step of removing the connection of the first connecting portion 14c and the hanging jig 10. Since the hanging jig 10 can be opened, it is possible to prevent the outer wall panel from dropping during the mounting.

  The present invention is not limited to the above-described embodiment. For example, the outer wall panel P is not limited to an extruded cement board, and may be a panel made of other materials. Moreover, the shape of the hanging jig 10 is not limited to a rectangle, and for example, the front part and the rear part may be curved.

  In the above-described embodiment, the example in which the second connecting portion 14d is arranged and welded to the CT steel 14 so that the penetration direction of the through hole 14g is along the longitudinal direction of the CT steel 14 has been described. As described above, the second connecting portion 14d may be disposed on the CT steel 14 and welded so that the penetration direction of the through hole 14g is along the direction orthogonal to the longitudinal direction of the CT steel 14. In this case, instead of the mounting fastener 22 attached before the outer wall panel fixing step, the embedded bolt 40 embedded in the interior of the housing slab 21 is provided so that the bolt joint portion extends in the direction perpendicular to the main surface of the housing slab 21. The outer wall panel P can be attached to the housing slab 21 by inserting the embedded bolt 40 into the through hole 14g and tightening with the nut. The housing slab 21 may have a tapered portion 21a in order to make it easier to hit the seal.

  In the embodiment described above, the gasket seal provided between the outer wall panels P and between the outer wall panel P and the CT steel 14 has been described in detail with reference to FIG. 6, but the shape of the part shown in FIG. For example, as shown in FIG. 9, some gaskets and seals may not be provided as appropriate.

Furthermore, in the above-described embodiment, an example in which CT steel 14 having a T-shaped cross section is used as the base member 14 is described. However, for example, two angles having an L-shaped cross section may be combined. In this case, in the land set step, on the lower end of the outer wall panel P, all straddle the outer wall panel ingredients so the top bar and the bottom bar is arranged, only the upper angle of the two angles and Z clip 15 welded Then, the first connecting portion of the upper angle and the hanging jig 10 are fixed with bolts. Then, the lifting jig 10 is lifted to connect the second connecting portion of the upper angle and the mounting fastener 22 with bolts at the mounting position, and the mounting fastener 22 positioned on the lower level side with the lower angle connecting portion. Are connected with bolts. Thereafter, the hanging jig 10 is released. In this way, the lower angle and the upper angle provided on the upper end side of the outer wall panel P on the lower floor side may be combined and attached so that the cross-sectional shape becomes T-shaped. Even when two L-shaped angles are combined, the outer wall panel mounting jig and the upper angle can be fixed by welding in the grounding process, so it is not necessary to weld on the building side and when lifting It is possible to prevent the panel from falling.

  DESCRIPTION OF SYMBOLS 10 ... Suspension jig | tool, 14 ... CT steel (base member), 14a ... Upper plate part, 14b ... Standing part, 14c ... 1st connection part, 14d ... 2nd connection part, 14g ... Through-hole, 15 ... Z clip (Locking member), 21 ... frame slab, 22 ... fastener for attachment, 22a ... main body, 22b ... foot, 22c ... attachment, 22d ... through hole, P ... outer wall panel, Pa ... through hollow, Pb ... Corner, Pc ... convex, Pd ... concave.

Claims (8)

It is an outer wall panel mounting method that vertically stretches the outer wall panel of the building in order from the lower floor,
Arranging the plurality of outer wall panels in a direction intersecting with the longitudinal direction of the outer wall panel and placing the outer wall panels on a hanging jig; and a base member having a first coupling portion and a second coupling portion as an upper end in the longitudinal direction of the outer wall panel the step of unitizing a plurality of outer wall panel by fixedly provided arranged on immediately so straddle all of the exterior wall panel in section, and the step of removably connecting the first connecting portion and the lifting jig A groundwork process including
A disposing step to Agekasane the lifting jig, placing the outer wall panels from the outside are unitized into the mounting position of the skeleton of the building of the building,
At the mounting position, the longitudinal connecting upper end side of the outer wall panel is fixed to the casing by connecting the second connecting part and the building casing, and is attached to the longitudinal lower end side of the outer wall panel. an outer wall panel fixing step of the lower floors of side said locked so the base member to fix the longitudinal lower end of the outer wall panel to the skeleton mounted in advance under edge locking member which is,
An outer wall panel mounting method characterized by comprising:   2. The outer wall panel mounting method according to claim 1, wherein the grounding step includes a step of attaching a lower locking member to a lower end portion in the longitudinal direction of each of the outer wall panels.   The outer wall panel attachment method according to claim 1, further comprising a removal step of removing the connection between the first connecting portion and the hanging jig after the outer wall panel fixing step.   4. The method according to claim 1, wherein in the grounding step, an upper locking member is attached to each longitudinal upper end side of each of the outer wall panels, and welding is performed in a state where the base member and the upper locking member are locked. The outer wall panel mounting method according to claim 1. The grounding step uses CT steel as the base member, and arranges the corner of the upper end in the longitudinal direction of the outer wall panel inside the building at the inner corner of the CT steel so that the upper plate portion of the CT steel Part of the outer wall panel is welded to the upper locking member in a state protruding from the edge of the upper end portion of the outer wall panel along the longitudinal direction of the outer wall panel,
5. The outer wall panel mounting method according to claim 4, wherein in the outer wall panel fixing step, the lower locking member of the outer wall panel is locked and fixed to a part of the upper plate portion of the CT steel on the lower floor side.   The connection method of the said 1st connection part and the said 2nd connection part is a connection by a screw | thread, The outer wall panel attachment construction method as described in any one of Claims 1-5. An outer wall panel mounting jig for vertically stretching the outer wall panel of a building in order from the lower floor,
The plurality of outer wall panels are fixed to only the upper end in the longitudinal direction of the plurality of outer wall panels, and the outer wall panels are unitized, and are attached to the upper end in the longitudinal direction of the outer wall panel and the higher floor side. A base member for fixing a lower end in the longitudinal direction of the outer wall panel to the building;
A hanging jig for lifting the unitized outer wall panel;
With
The base member has a first connecting portion that is detachably connected to the hanging jig and a second connecting portion that is detachably connected to the building,
The hanging jig is configured to be able to lift the outer wall panel using the first connecting portion of the base member as a hanging support point for preventing the outer wall panel from dropping .
An outer wall panel mounting jig. The base member is
CT steel having an upper plate portion and a standing portion erected at the center of the upper plate portion,
The corner portion located on the inner side of the building that is the upper end portion in the longitudinal direction of the outer wall panel is accommodated in the inner corner portion of the CT steel, and a part of the upper plate portion extends from the edge of the upper end portion of the outer wall panel. It is fixed to a plurality of outer wall panels in a state protruding along the longitudinal direction of the outer wall panel,
The part of the upper plate part protruding along the longitudinal direction of the outer wall panel fixes the lower end part in the longitudinal direction of the outer wall panel attached to a higher floor side to the building. Ingredients.

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