JP2006022509A - Curtain wall and its mounting method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a curtain wall efficiently constructible even in the case of adopting a top-down construction method, and its mounting method. <P>SOLUTION: A temporary fixing bracket 30 detachably provided at a lower frame of a curtain wall unit 11 is locked to a support bracket 3 to regulate the movement in a depth direction of a lower part of the curtain wall unit 11 on a construction floor. The lower end side of the curtain wall unit 11 on the construction floor is thereby braced even if a curtain wall unit 11 on a lower floor is not mounted. Consequently, the curtain wall unit 11 can be stably mounted even in the case of adopting the top-down construction method, and the curtain wall can be efficiently formed. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a curtain wall and a method for attaching the curtain wall. Specifically, an interlocking curtain wall configured by arranging a plurality of curtain wall units supported by the building frame side by side, vertically and horizontally, and fitting the opposing edges of each unit, and a method of attaching the interlocked curtain wall About.

Conventionally, as curtain walls that make up the outer wall of a building, a plurality of curtain wall units supported by the building frame are arranged side by side vertically and horizontally, and the edges of each unit adjacent to each other vertically and horizontally (upper and lower frames) , And vertical frames) are known as interlocking curtain walls (see, for example, Patent Document 1).
In this interlock type curtain wall, each curtain wall unit is formed with a height dimension corresponding to the floor height of each floor of the building, and the upper frame and the upper part of the vertical frame are connected to the building frame via fasteners, brackets, etc. Supported by (floor slabs, beams, etc.). The curtain wall unit is prevented from shaking against an out-of-plane load such as wind pressure by fitting the lower frame of the curtain wall unit to the upper frame of the curtain wall unit (lower floor unit) on the lower floor. . In addition, the vertical frames of the curtain wall units (adjacent units) that are adjacent to each other on the left and right are also fitted to each other. It is configured.

JP-A-8-193374 (FIGS. 1 and 2)

By the way, the conventional interlock type curtain wall is usually installed in order from the lower floor to the upper floor of the building, that is, the upper floor curtain wall unit (upper floor) with the lower floor unit fixed. The unit is installed by the bottom-up method. At this time, the upper floor unit is supported by the building frame by fastening fasteners fixed to the upper frame and the upper part of the vertical frame to the bracket on the building frame side, and the lower frame of the upper floor unit is the lower floor unit. By being fitted to the upper frame from above, the lower end side thereof is prevented from shaking.
On the other hand, as a construction method for forming the curtain wall, a top-down construction method is used in which the curtain wall units are sequentially attached from the upper floor to the lower floor of the building, that is, the lower floor unit is attached while the upper floor unit is fixed. There is a case. Such a top-down method is suitable for repairing the outer wall of an existing building. In other words, if you install a new curtain wall from the upper floor to the lower floor and remove the existing outer walls and windows, the water stop work on the floor where the curtain wall is installed can be completed simultaneously with the curtain wall installation, The inside of the building becomes available. As a result, even if construction is continued on the lower floor, the interior space of the building can be used sequentially from the floor where the curtain wall has been installed, and the entire construction period of the renovation work can be shortened. Yes.

However, when a conventional interlock curtain wall is formed by a top-down method, there are the following problems.
That is, when installing the curtain wall unit (construction unit) on the construction floor, the upper frame is fitted to the lower frame of the upper floor unit, and the fastener is connected to the bracket on the building frame side, etc. Since the lower floor unit to fit the lower frame of the construction unit is not yet installed, the lower end side of the construction unit becomes unstable without being shaken until the lower floor unit is installed, The problem that workability falls will arise.

  An object of the present invention is to provide a curtain wall that can be efficiently constructed even when a top-down construction method is employed, and a method for attaching the curtain wall.

  The curtain wall of the present invention is arranged by arranging a curtain wall unit having an upper frame, a lower frame, and a left and right vertical frame framed in a quadruple frame and a face material supported by the frame side by side in the vertical and horizontal directions, A curtain wall configured to be supported by a supporting means provided in a building frame and fitted between opposing frames of the curtain wall unit, the upper frame of the curtain wall unit or the upper part of the vertical frame Is provided with a fixing means connected to the support means to fix the curtain wall unit to the building frame, and the lower wall of the curtain wall unit arranged at least at both ends of the curtain wall unit. Temporary fixing means for temporarily fixing the curtain wall unit to the building frame is provided at the bottom of the frame or the vertical frame. The curtain wall unit is attached in order from the upper floor to the lower floor of the building, and when the curtain wall unit is attached, the upper frame is attached to the lower frame of the upper curtain wall unit already attached to the upper side of the curtain wall unit. Are fitted, the fixing means is connected to the support means, and the temporary fixing means restricts movement in the prospective direction at the lower part of the curtain wall unit.

According to such a configuration, movement in the prospective direction of the lower part of the curtain wall unit (construction unit) on the construction floor is restricted by the temporary fixing means provided at the lower part of the lower frame or the vertical frame in the curtain wall unit. Even if the lower-floor curtain wall unit (lower-floor unit) is not attached, the lower end side of the construction unit is steady. Therefore, even when the top-down construction method is adopted, the curtain wall unit can be stably attached and can be efficiently constructed. At this time, the curtain wall unit provided with the temporary fixing means may be only the units at both ends of the curtain wall unit continuously arranged on the left and right, or the temporary fixing means for all of the intermediate unit or at every predetermined pitch. May be provided. That is, since the vertical frames of the units arranged continuously on the left and right are fitted to each other, the movement of the unit in the middle part can be restricted as long as it is steady at least at the units at both ends. The stability of the construction unit until the unit is attached can be ensured.
And by adopting a top-down construction method in which the curtain wall units are installed sequentially from the upper floor to the lower floor, the interior space of the building is sequentially installed from the floor where the installation of the curtain wall unit is completed in the case of the outer wall repair work of the existing building. Can be used, and the entire construction period of renovation work can be shortened.

In this case, in the curtain wall of the present invention, the temporary fixing means is a temporary fixing bracket that is detachably attached to the lower frame or the lower part of the vertical frame and is extended and attached to the indoor side. When installing, a lower support means for supporting the lower curtain wall unit disposed below the curtain wall unit is provided, and the temporary fixing bracket is locked to the lower support means. Therefore, it is preferable that the movement of the curtain wall unit is restricted, and the temporary fixing bracket is removed from the lower frame or the lower part of the vertical frame before the lower curtain wall unit is attached.
In such a configuration, the temporary fixing means is constituted by a detachable bracket, and this bracket is locked to the lower side (lower floor) supporting means (the supporting means for connecting the fixing means of the lower floor unit), There is no need to separately provide a member or the like for locking the temporary fixing bracket in the building frame, and the mounting structure can be simplified. In addition, by removing the temporary fixing bracket before installing the lower floor unit, the temporary fixing bracket extending to the indoor side does not interfere with indoor finishing, and the temporary fixing bracket can be diverted to other curtain wall units. it can.

Furthermore, in the curtain wall of the present invention, the support means is a support bracket having a first surface portion fixed to the building frame and a second surface portion extending upward from the outdoor edge of the first surface portion. Preferably, the temporary fixing bracket has a locking piece portion that extends to the indoor side and bends downward to be locked to the indoor side surface of the second surface portion.
In such a configuration, when a support bracket made of an angle piece material having a general L-shaped cross section is used, the lower part of the curtain wall unit can be easily hooked only by hooking the temporary fixing bracket onto the second surface portion extending upward. Can be controlled, and workability can be improved.

  Further, the curtain wall of the present invention is arranged by arranging a curtain wall unit having a frame body having a quadruple frame of an upper frame, a lower frame, and left and right vertical frames and a face material supported by the frame side by side vertically and horizontally. The curtain wall unit is supported by supporting means provided in the building frame and is configured by fitting the opposing frame bodies of the curtain wall unit, and the upper frame or the vertical frame of the curtain wall unit. In the upper part, there is provided a fixing means connected to the support means to fix the curtain wall unit to the building frame, the fixing means is a main body fixed to the upper part of the upper frame or the vertical frame, The curtain wall unit is configured to extend from the upper floor to the lower floor of the building. The upper frame is fitted to the lower frame of the upper curtain wall unit already attached to the upper side of the curtain wall unit with the extension part removed, and the fixing is performed. The main body portion of the means is connected to the support means, and the extension portion attached to the main body portion is connected to the support means so that the curtain wall unit is fixed to the building frame. Good.

According to such a configuration, the fixing means provided on the upper part of the upper frame or the vertical frame in the curtain wall unit has a separate structure having a main body part and an extension part. When attaching the construction unit with the unit already attached, the extension part of the fixing means can be removed, the extension part does not get in the way, and the construction unit can be easily attached. . That is, if it is a conventional bottom-up method, even if a part of the fastener as a fixing means extends to the indoor side, this extended part does not get in the way, but in the top-down method, Since the upper floor unit is already attached, there is a problem that when the construction unit is attached from below the upper floor unit, the extending portion of the fixing means interferes with the support means and the building frame. On the other hand, in the fixing means of the present invention, since the extending portion of the fixing means is a separate body, the construction unit can be smoothly attached without interfering with the supporting means and the building frame.
Therefore, the curtain wall unit can be efficiently attached even when the top-down method is employed. By adopting the top-down construction method, the interior space of the building can be used sequentially from the floor where the curtain wall unit has been installed, and the entire construction period of the renovation work can be shortened, as described above.

At this time, in the curtain wall of the present invention, an engagement groove having a substantially C-shaped cross section extending horizontally is formed in one of the main body portion and the extension portion of the fixing means, and the engagement groove is formed in the other. It is desirable that a projecting portion that engages with the body portion is formed, and the extension portion is attached to the body portion by engaging the engagement groove and the projecting portion from a side of the body portion.
According to such a configuration, since the main body portion and the extension portion of the fixing means are integrated by a simple operation that only engages the engagement groove and the convex portion, the workability when attaching the construction unit is improved. Work can be carried out without deteriorating.

Furthermore, in the curtain wall of the present invention, the support means is a support bracket having a first surface portion fixed to the building frame and a second surface portion extending upward from the outdoor edge of the first surface portion. The main body portion of the fixing means is connected to the outdoor side surface of the second surface portion via a fixing tool, and the extension portion is connected to the upper edge of the second surface portion via a fixing tool. It is desirable.
According to such a configuration, a support bracket made of an angle piece material having a general L-shaped cross section is used, and a fixing device body (bolt, nut, etc.) is used to fix the main body portion of the fixing means to the second surface portion which is the vertical surface. As a result, the curtain wall unit can be positioned in the prospective direction and the left-right direction. Then, the curtain wall unit can be positioned in the vertical direction by connecting the extension part attached to the main body part of the fixing means to the upper end edge of the second surface part of the support bracket using a fixing tool. Can be properly attached to the building frame.

In the above, in the curtain wall of the present invention, a connecting member for connecting the lower frames across both lower frames is provided on the lower side of the lower frame of the curtain wall unit arranged adjacent to the left and right. Preferably, a sealing material is interposed between the connecting member and the lower frame.
According to such a configuration, the connecting member is provided across the lower frame of the curtain wall unit arranged adjacent to the left and right, and the sealing material is interposed between the connecting member and the lower frame, so that Rainwater or the like entering from between the vertical frames of the matching curtain wall unit can be received by the connecting member and discharged to the outside of the room. And by adopting a top-down construction method, even if a draining member or the like is not attached at a position straddling the upper frames of adjacent curtain wall units, the water stoppage can be ensured by the connecting member.

Furthermore, in the curtain wall of the present invention, the connecting member is attached to a lower frame of one of the curtain wall units before the attachment of the left and right adjacent curtain wall units. After the attachment, it is preferable that the connecting member is slid along the lower frame to a position straddling both the lower frames.
According to such a configuration, it is possible to easily install the connecting member at a position straddling the lower frame of the adjacent curtain wall unit by simply sliding the connecting member attached to the lower frame of the curtain wall unit. Workability can be further improved.

  On the other hand, the curtain wall mounting method of the present invention comprises a frame wall unit having a frame body that is a quadruple frame of an upper frame, a lower frame, and left and right vertical frames, and a curtain wall unit that has a face material supported by the frame body. Are arranged side by side and supported by a supporting means provided in the building frame, and a curtain wall mounting method configured by fitting frames facing each other of the curtain wall unit. The upper frame or the upper part of the vertical frame is provided with a fixing means connected to the support means to fix the curtain wall unit to the building frame, and at least the curtain wall unit is continuously arranged on the left and right. At the bottom of the lower frame or the vertical frame of the curtain wall unit at both ends, the curtain wall unit is attached to the building frame. Temporary fixing means for stopping is provided, and when the curtain wall unit is sequentially installed from the upper floor to the lower floor of the building, it is attached to the lower frame of the upper curtain wall unit already attached to the upper side of the curtain wall unit. The upper frame is fitted, the fixing means is connected to the support means, and movement in the prospective direction at the lower part of the curtain wall unit is restricted by the temporary fixing means.

  According to such a configuration, as described above, even if the lower-floor curtain wall unit (lower-floor unit) is not attached, the lower end side of the construction unit is steady, so even when the top-down construction method is adopted Thus, the curtain wall unit can be attached and can be efficiently constructed. By adopting the top-down construction method, the interior space of the building can be used sequentially from the floor where the curtain wall unit has been installed, and the entire construction period of the renovation work can be shortened, as described above.

At this time, in the curtain wall mounting method of the present invention, the temporary fixing means is a temporary fixing bracket which is detachably attached to the lower frame or the lower part of the vertical frame and is extended and attached to the indoor side. When the wall unit is attached, a lower support means for supporting the lower curtain wall unit disposed below the curtain wall unit is provided, and the temporary fixing bracket is engaged with the lower support means. It is desirable to restrict the movement of the curtain wall unit by stopping and to remove the temporary fixing bracket from the lower part of the lower frame or the vertical frame before attaching the lower curtain wall unit.
In such a configuration, as described above, there is no need to separately provide a member or the like for locking the temporary fixing bracket on the building frame, the mounting structure can be simplified, and the temporary extension extending to the indoor side can be achieved. The stop bracket does not interfere with indoor finishing, and the temporary stop bracket can be diverted to other curtain wall units.

  Further, the curtain wall mounting method of the present invention comprises a frame body having a frame body having a quadruple frame of an upper frame, a lower frame, and left and right vertical frames, and a curtain wall unit having a face material supported by the frame body. Are arranged side by side and supported by a supporting means provided in the building frame, and a curtain wall mounting method configured by fitting frames facing each other of the curtain wall unit, the curtain wall unit The upper frame or the upper part of the vertical frame is provided with a fixing means that is connected to the support means and fixes the curtain wall unit to the building frame. The fixing means is fixed to the upper frame or the upper part of the vertical frame. The main body portion and an extension portion that is detachably attached to the main body portion and extends to the indoor side, and is configured from the upper floor to the lower floor of the building. When the curtain wall units are sequentially attached, the upper frame is fitted to the lower frame of the upper curtain wall unit already attached to the upper side of the curtain wall unit with the extension part removed, and the fixing means While connecting the said main-body part to the said support means, the said extension part may be attached to the said main-body part, and it may be comprised so that the said extension part may be connected to the said support means.

  According to such a configuration, as described above, the extension portion does not get in the way, the installation unit can be easily attached, and the curtain wall unit can be efficiently attached even when the top-down construction method is adopted. Can do. By adopting the top-down construction method, the interior space of the building can be used sequentially from the floor where the curtain wall unit has been installed, and the entire construction period of the renovation work can be shortened, as described above.

In the above, in the curtain wall mounting method of the present invention, the lower frame of either one of the curtain wall units arranged adjacent to each other on the left and right sides is arranged between the lower frames across both lower frames. Are connected in advance, and after the adjacent curtain wall unit is attached, the connecting member is slid along the lower frame to a position straddling both lower frames, and the connecting member and It is desirable to seal between the lower frame.
According to such a configuration, as described above, rainwater and the like that have entered from between the vertical frames of the adjacent curtain wall units can be received by the connecting member and discharged to the outdoor side, and the adjacent curtain wall units can be discharged. The connecting member can be easily installed at a position straddling the lower frame, and the workability can be further improved.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is an external appearance view showing a part of a building 1 having an outer wall surface formed by a curtain wall 10 according to the present embodiment. 2 is a longitudinal sectional view of the curtain wall 10, and is a sectional view taken along the line II-II in FIG. 3 and FIG. 4 are longitudinal sectional views showing enlarged main portions of the curtain wall 10, respectively, and are sectional views of the enclosure part III and the enclosure part IV shown in FIG. 5 and 6 are enlarged cross-sectional views showing the main part of the curtain wall 10, respectively, and are cross-sectional views taken along lines VV and VI-VI in FIG. FIG. 7 is a longitudinal sectional view showing a part of the curtain wall 10 in an enlarged manner, and is a sectional view of the enclosing portion VII shown in FIG.

1 to 7, the curtain wall 10 is configured by a plurality of curtain wall units 11 having a height dimension corresponding to a distance (floor height) between floor levels (indicated by FL in the drawing) of each floor of the building 1. Has been.
The curtain wall unit 11 is arranged side by side on the top, bottom, left and right of the outer wall surface of the building, and is supported by a support bracket (support means) 3 fixed to a floor slab (building frame) 2 of each floor of the building 1. The curtain wall unit 11 includes a frame body in which the upper frame 12, the lower frame 13, and the left and right vertical frames 14, 15 are framed, and two frames horizontally installed between the left and right vertical frames 14, 15. A crosspiece (intermediate material) 16, an upper frame 12, a lower frame 13, vertical frames 14 and 15, and a glass panel 17 as a face material supported by the middle crosspiece 16 are configured. Further, some curtain wall units 11 are provided with movable shojis 18 (FIGS. 5 and 7) as face members supported by the left and right vertical frames 14 and 15 and the upper and lower middle rails 16. 18 is configured to be openable to the outdoor side around a horizontal rotation shaft provided on the upper middle rail 16.

  The upper frame 12, the lower frame 13, the vertical frames 14, 15 and the middle rail 16 of the curtain wall unit 11 are each made of an aluminum shape. As shown in FIG. 3, the upper frame 12 includes a panel holding portion 12 </ b> A that holds the upper edge of the glass panel 17 through a sealing material, and two protruding piece portions 12 </ b> B that protrude upward and fit into the lower frame 13 12C. The lower frame 13 includes a lower frame main body portion 13A and a pressing edge portion 13B attached to the outdoor side of the lower frame main body portion 13A, and the lower frame main body portion 13A is interposed between the lower frame main body portion 13A and the pressing edge portion 13B. The lower end edge of the glass panel 17 is held via the sealing material. The lower frame main body portion 13A has an upper surface portion 13C and side surface portions 13D and 13E that are suspended from the outside edge and the indoor side edge of the upper surface portion 13C and has a substantially U-shaped cross section that opens downward. ing. Then, the protruding pieces 12B and 12C of the upper frame 12 are fitted between the side faces 13D and 13E so that the side faces 13D and 13E and the protruding pieces 12B and 12C are brought into close contact with each other through an airtight material. It has become.

  As shown in FIG. 4, the intermediate rail 16 includes an intermediate rail main body portion 16 </ b> A and two pressing edge portions 16 </ b> B attached to the outdoor side of the intermediate rail main body portion 16 </ b> A. The upper end edge or lower end edge of the glass panel 17 is held between 16A and the pressing edge portion 16B via a sealing material. In addition, a panel material 19 constituting a spandrel portion together with the glass panel 17 is fixed between the upper frame 12 and the upper middle rail 16. The panel material 19 is used to prevent the curtain wall unit 11 attachment portion and the ceiling back portion from being seen from the outdoor side, and is formed of a metal opaque plate material or the like. As shown in FIG. 3, a fireproof material 4 such as rock wool is interposed between the panel material 19 and the floor slab 2 in order to secure fireproof performance, heat insulation performance, and sound insulation performance between the upper and lower floors. Has been. Further, as shown in FIG. 4, the blind box 5 and the ceiling material 6 are fixed to the upper middle rail 16.

  As shown in FIG. 5, the vertical edges 14 and 15 have the side edges of the glass panel 17 in close contact with the outdoor side through a sealing material. The vertical frames 14 and 15 adjacent to each other on the left and right sides are provided to face each other with a predetermined interval, and the outdoor side of the interval portion is a joint S. Inside the joint S, water-stopping materials (rain barriers) 14A provided in the vertical frame 14 and the vertical frame 15 are in contact with each other, and intrusion of rainwater, dust and the like is prevented. In addition, one opposing vertical frame 14 is formed with a substantially U-shaped fitting recess 14B that opens outward in the finding direction, and the other vertical frame 15 has two protruding pieces that protrude outward in the finding direction. A portion 15A is formed. And the protrusion piece part 15A of the vertical frame 15 fits in the fitting recessed part 14B of the vertical frame 14, and the side wall and protrusion piece part 15A of the fitting recessed part 14B are closely_contact | adhered via an airtight material.

  As described above, the upper frame 12 of the curtain wall unit 11 is fitted to the lower frame 13 of the curtain wall unit 11 on the upper floor, and the lower frame 13 is fitted to the upper frame 12 of the curtain wall unit 11 on the lower floor. The vertical frames 14 and 15 are fitted to the vertical frames 15 and 14 of the adjacent curtain wall unit 11. That is, the curtain wall 10 is an interlock type in which each of the assembled curtain wall units 11 is supported by the support bracket 3 of the floor slab 2 and the frames of the curtain wall units 11 adjacent in the vertical and horizontal directions are fitted to each other. Curtain wall.

As shown in FIG. 3 and FIG. 6, fasteners 20 as fixing means that are connected to the support bracket 3 and fix the curtain wall unit 11 to the floor slab 2 are provided on the upper portions of the vertical frames 14 and 15 of the curtain wall unit 11. It has been.
The fastener 20 is fastened to the inner side of the vertical frames 14 and 15 with bolts and nuts, and is detachably attached to the upper portion of the fastener body 21 so as to extend indoors. A fastener extending portion 22 is provided. The fastener body 21 protrudes slightly indoors from the indoor side surfaces of the vertical frames 14 and 15 and is connected to the support bracket 3. The fastener main body 21 extends upward to a position near the upper frame 12 and extends from the fastener. And an engaging portion 21 </ b> B for engaging 22. The engaging portion 21B is formed with an engaging groove 21C having a substantially C-shaped cross section that extends horizontally and opens to the indoor side. The fastener extending portion 22 is formed having a connected portion 22A connected to the support bracket 3 and a convex portion 22B that engages with the engaging groove 21C of the fastener main body portion 21.

On the other hand, the support bracket 3 has a horizontal surface portion 3A as a first surface portion fixed to the floor slab 2 and a vertical surface portion 3B as a second surface portion extending upward from the outdoor edge of the horizontal surface portion 3A. Thus, the angle member is formed in a substantially L-shaped cross section. The horizontal surface portion 3 </ b> A of the support bracket 3 is fixed by anchor bolts 3 </ b> C that penetrate the floor slab 2. In addition, the vertical surface portion 3B of the support bracket 3 is formed with a long hole 3D that is formed long vertically.
The connected portion 21A of the fastener main body 21 is connected to the vertical surface portion 3B of the support bracket 3 via a bolt 23A and a nut 23B as a fixing tool, and the connected portion 22A of the fastener extending portion 22 is connected to the fixing tool 22A. Are supported (connected) to the upper end edge of the vertical surface portion 3B of the support bracket 3 via a bolt 24A and a nut 24B. Further, the interior side of the fastener 20 and the support bracket 3 is covered with the cover material 7 fixed to the lower frame 13 of the curtain wall unit 11 and the floor finish 2A so as not to be exposed to the indoor space.

Next, the procedure for attaching the curtain wall unit 11 will be described in detail with reference to FIGS.
8 to 15 are perspective views showing a procedure for attaching the curtain wall unit 11.
In the present embodiment, the curtain wall unit 11 is sequentially attached from the upper floor to the lower floor of the building 1. When the curtain wall unit 11 is attached, the support bracket 3 is fixed to the floor slab 2 of the floor to which the curtain wall unit 11 is attached, as shown in FIG. The support bracket 3 is connected to a fastener 20 of a curtain wall unit (lower curtain wall unit) 11 attached to the floor one floor below the construction floor to support the lower curtain wall unit. It is a support means. At this time, a curtain wall unit (upper curtain wall unit) 11 is already attached on the floor one level above the construction floor, and a support bracket (upper support means) is attached to the floor slab 2 on the upper floor. ) 3 is fixed.

  Next, as shown in FIG. 9, the curtain wall unit 11 (11A) of the construction floor is attached. The fastener 20 of the curtain wall unit 11A is connected to a support bracket 3 on an upper floor (not shown). A temporary fixing bracket 30 as a temporary fixing means for temporarily fixing the curtain wall unit 11A to the floor slab 2 is provided on the lower frame 13 of the curtain wall unit 11A. The temporary fixing brackets 30 are attached to both ends of the lower frame 13 detachably by temporary fixing bolts. The temporary fixing bracket 30 has a locking piece portion 30A that extends from the indoor side surface portion 13E of the lower frame 13 to the indoor side and is bent downward and locked to the vertical surface portion 3B of the support bracket 3. Is formed. Since the locking piece 30A of the temporary fixing bracket 30 is locked to the vertical surface 3B of the support bracket 3, the movement of the construction floor in the expected direction at the lower part of the curtain wall unit 11A is restricted. . When the installation of the curtain wall unit 11A on the construction floor is completed, the curtain wall unit 11 (11B) on the next lower floor is attached.

Next, as shown in FIG. 10, when the curtain wall unit 11B of the next lower floor is attached, the support bracket 3 is fixed to the floor slab 2 of the lower floor as described above. Then, the temporary fixing bracket 30 on the curtain wall unit 11B side to be attached is removed. The curtain wall unit 11B is lifted from below the curtain wall unit 11A with the fastener extension 22 removed from the fastener body 21 of the fastener 20 in the curtain wall unit 11B. The upper frame 12 of the curtain wall unit 11B to be attached is fitted into the frame 13.
Then, as shown in FIG. 11, the bolt 23A is inserted into the elongated hole 3D of the support bracket 3 and the connected portion 21A of the fastener main body 21 and screwed into the nut 23B, and the fastener main body 21 is connected to the support bracket 3. To do. At this time, the vertical position of the curtain wall unit 11B can be appropriately adjusted along the long hole 3D of the support bracket 3.

Next, as shown in FIG. 12, the removed fastener extension 22 is attached to the fastener body 21. At this time, as indicated by an arrow in the figure, the convex portion 22B of the fastener extending portion 22 is engaged with the engaging groove 21C of the fastener main body portion 21 from the horizontal side.
Then, as shown in FIG. 13, the bolt 24A inserted through the connected portion 22A and the nut 24B of the fastener extending portion 22 is protruded downward, and the tip of the bolt 24A is set to the upper end edge of the vertical surface portion 3B of the support bracket 3. Make contact. At this time, the bolt 23A screwed into the nut 23B of the fastener main body 21 is not completely tightened, and the vertical position of the curtain wall unit 11B is adjusted while tightening the bolt 24A of the fastener extension 22. Then, at the stage where the position of the curtain wall unit 11B can be adjusted, the bolt 23A is tightened, and the nut on the upper side of the fastener extending portion 22 is tightened to complete the attachment of the curtain wall unit 11B. Further, since the curtain wall unit 11B is fixed, movement of the lower portion of the curtain wall unit 11A into which the upper frame 12 is fitted in the expected direction is restricted.

Next, as shown in FIG. 14, the adjacent curtain wall unit 11B is attached in the same procedure as described above, and the vertical frames 14 and 15 of these adjacent curtain wall units 11B are fitted, and between the lower frames 13 To seal. At this time, the temporary fixing bracket 30 on the curtain wall unit 11B side to be attached is removed, and then the fastener 20 of the curtain wall unit 11B is connected to the support bracket 3.
Then, as shown in FIG. 15, a floor finishing material 2A is attached on the floor slab 2, and a cover material 7 is attached between the floor finishing material 2A and the curtain wall unit 11A. 20 and the support bracket 3 are covered with the cover material 7, and the installation work of the curtain wall unit 11 on the construction floor is completed.

The relationship between the fastener 20 of the curtain wall unit 11 attached as described above and the support bracket 3 will be described with reference to FIGS. 16 and 17.
FIG. 16 and FIG. 17 are longitudinal sectional views showing the attachment portion of the curtain wall unit 11 in an enlarged manner.
In FIG. 16 and FIG. 17, the upper curtain wall unit 11 (11A) is already attached, and the distance H1 between the lower edge of the lower frame 13 and the upper edge of the vertical surface portion 3B of the support bracket 3 is The dimensions are specified by design. Then, the lower curtain wall unit 11 (11B) with the fastener extending portion 22 removed from the fastener main body portion 21 of the fastener 20 is attached, and the upper end edge of the upper frame 12 and when the attachment is completed (FIG. 17). ) Of the fastener extending portion 22 is set to be larger than the distance H1.
That is, the distance H1 <the distance H2.

  Under such conditions, in the fastener in which the fastener extending portion 22 is formed integrally with the fastener main body portion 21, the fastener extending portion hits the support bracket 3, and thus the curtain wall unit 11 cannot be attached. On the other hand, in the curtain wall unit 11 of the present embodiment configured so that the fastener extension 22 can be removed from the fastener body 21, the upper frame 12 of the curtain wall unit 11B is fitted to the lower frame 13 of the curtain wall unit 11A. After the joining, the fastener extending portion 22 is attached, so that the curtain wall unit 11 can be smoothly attached without hitting the support bracket 3.

Next, the water stop and drainage structure in the curtain wall 10 of the present embodiment will be described in detail with reference to FIGS.
FIG. 18 and FIG. 19 are a longitudinal sectional view and a transverse sectional view showing a water stop structure of the curtain wall 10, respectively. FIG. 20 is a perspective view in which a part of the curtain wall 10 is omitted. FIG. 21 is a perspective view showing a connecting member provided on the lower frame 13 of the curtain wall unit 11. 22 to 25 are perspective views of the curtain wall unit 11 as viewed from below, and are diagrams illustrating a procedure for attaching the connecting member.
In FIGS. 18 to 21, the lower frames 13 and 15, which are the intersections of the curtain wall units 11 adjacent to each other in the vertical and horizontal directions, are connected to connect the lower frames 13 across the adjacent lower frames 13. A splicer 40 as a member is attached to the lower side of the lower frame 13.

  As shown in FIGS. 18 and 21, the splicer 40 is formed in a generally U-shape that opens downward, and is fitted and locked to the lower frame 13. The splicer 40 includes an upper surface portion 41 having an inclination that goes down to the outdoor side, a front surface portion 42 that is bent downward from the outdoor edge of the upper surface portion 41 along the side surface portion 13D of the lower frame 13, and an upper surface portion 41. And a back surface portion 43 bent downward along the side surface portion 13E of the lower frame 13 from the indoor side edge. A draining piece 44 protruding outward is formed at a substantially central position at the lower end of the front face 42 below the joint S of the curtain wall 10. Further, on the upper side of the upper surface portion 41 and the outdoor side of the front surface portion 42, a water stop material (seal material) 45 that is in close contact with the upper surface portion 13C and the side surface portion 13D of the lower frame 13 is attached. The water stop material 45 is formed in a shape along the lower inner surface of the lower frame 13 from rubber, resin, or the like, and is closed so that no gap is generated between the splicer 40 and the lower frame 13. Yes. And as shown in FIG. 19, the water stop material 45 is located under the inner edge of the vertical direction of the vertical frames 14 and 15 or inside it.

  22 to 25, the splicer 40 as described above is attached to the lower frame 13 of the curtain wall unit 11 on one of the left and right curtain wall units 11 (right side in FIG. 22). After these adjacent curtain wall units 11 are attached, they are slid along the lower frame 13 and installed at a position straddling both lower frames 13. Then, after moving to a position straddling both lower frames 13 of the adjacent curtain wall units 11, a wet sealant is filled between the splicer 40 and the lower frame 13. Thereafter, by attaching the lower curtain wall unit 11, the splicer 40 is fixed to the intersection of the curtain wall unit 11.

In the curtain wall 10 described above, rainwater that has entered the vertical frames 14 and 15 from the joint S beyond the water blocking material 14A of the vertical frames 14 and 15, and the upper frame 12 and the upper frame 12 between the upper frame 12 and the lower frame 13 Rainwater that has entered the space falls between the vertical frames 14 and 15 and is received by the upper surface portion 41 of the splicer 40. The rainwater flows to the outdoor side along the slope of the upper surface portion 41 of the splicer 40, flows down along the front surface portion 42, and is discharged to the outdoor side. Further, since the rainwater that has flowed down in this way is received by the draining piece portion 44 of the splicer 40, it does not enter again between the vertical frames 14 and 15 from the joint S on the lower floor.
Further, since the splicer 40 and the lower inner surface of the lower frame 13 are in intimate contact with each other by a water stop material 45 or a wet seal, the space between the vertical frames 14 and 15 in the curtain wall unit 11 on the upper floor and the upper part below the space The space above the frame 12 is blocked. The space between the vertical frames 14 and 15 communicates with the space above the upper frame 12 above, and these spaces are at equal pressure.

According to this embodiment, there are the following effects.
(1) The temporary fixing bracket 30 provided on the lower frame 13 of the curtain wall unit 11 restricts the movement of the lower floor of the curtain wall unit 11 in the prospective direction, so that the curtain wall unit on the lower floor is attached. Even if not, the lower end side of the curtain wall unit 11 on the construction floor is steady. Therefore, even when the top-down construction method is adopted, the curtain wall unit 11 can be attached stably and can be efficiently constructed.

 (2) Even if the top-down construction method in which the curtain wall unit 11 is sequentially attached from the upper floor to the lower floor is adopted, the construction efficiency does not decrease. Therefore, in the case of the outer wall repair work of the existing building, the curtain wall unit 11 The internal space of the building 1 can be used sequentially from the floor where the installation is completed, and the entire construction period of the renovation work can be shortened.

 (3) Further, since the temporary fixing bracket 30 is locked to the lower support bracket 3, it is not necessary to separately provide a member for locking the temporary fixing bracket 30, and the mounting structure is simplified. be able to.

 (4) Further, the temporary fixing bracket 30 is configured to be detachable, and is removed before the curtain wall unit 11 on the lower floor is attached. Therefore, the temporary fixing bracket 30 does not interfere with indoor finishing, and the temporary fixing bracket 30 is It can be diverted to other curtain wall units 11.

 (5) Moreover, the movement of the lower part of the curtain wall unit 11 can be easily restricted by simply hooking the locking piece 30A of the temporary fixing bracket 30 on the vertical surface 3B of the support bracket 3, thereby improving the workability. Can do.

 (6) Since the fastener 20 provided on the upper part of the vertical frames 14 and 15 of the curtain wall unit 11 has a separate structure including the fastener main body 21 and the fastener extension 22, the curtain wall on the upper floor. When the curtain wall unit 11 of the construction floor is attached with the unit 11 already attached, the fastener extending portion 22 of the fastener 20 can be removed, and the fastener extending portion 22 does not get in the way, The curtain wall unit 11 can be easily attached.

 (7) Furthermore, since the fastener 20 is integrated by a simple operation of simply engaging the convex portion 22B of the fastener extending portion 22 with the engaging groove 21C of the fastener main body portion 21, the curtain wall unit 11 is attached. Work can be performed without deteriorating workability at the time.

 (8) Further, the connected portion 21A of the fastener main body portion 21 is connected to the vertical surface portion 3B of the support bracket 3 using a bolt 23A and a nut 23B, and the connected portion of the fastener extending portion 22 is connected to the upper end edge of the vertical surface portion 3B. By connecting 22A using the bolt 24A and the nut 24B, the curtain wall unit 11 can be appropriately positioned, and the mounting accuracy of the curtain wall unit 11 can be ensured.

 (9) Further, a splicer 40 is provided across the lower frame 13 of the curtain wall unit 11 arranged adjacent to the left and right, and a water stop material 45 and a wet seal are interposed between the splicer 40 and the lower frame 13. By doing so, rainwater or the like that has dropped between the vertical frames 14 and 15 of the adjacent curtain wall units 11 can be received by the splicer 40 and discharged to the outdoor side. And by adopting the top-down construction method, even if a draining member or the like is not attached at a position straddling the upper frames 12 of the adjacent curtain wall units 11, the water stoppage is secured by the splicer 40 attached to the lower frame 13. be able to.

 (10) Furthermore, the splicer 40 can be easily installed at a position straddling the adjacent lower frames 13 simply by sliding the splicer 40 attached in advance to the lower frame 13 of the curtain wall unit 11. Can be improved.

The present invention is not limited to the above embodiment.
For example, in the embodiment, the height of the curtain wall unit 11 is set to the floor height of the building 1 and the curtain wall unit 11 is attached to each floor. However, the present invention is not limited to this, and the height spans a plurality of floors. A curtain wall unit having dimensions may be used. Furthermore, if a support beam or a tension truss type support structure is provided in the middle of the height direction in a large atrium space, etc., a curtain wall unit that divides a curtain wall for one floor into a plurality of height directions. It is also possible to configure.

Moreover, in the said embodiment, although the fastener main-body part 21 and the fastener extension part 22 of the fastener 20 were made into the different body, it is good also as a structure as shown not only in this but in FIG. 26 and FIG. That is, the fastener 20 is formed by integrally forming the fastener body 21 and the fastener extension 22. The support bracket 3 is configured by dividing the vertical surface portion 3B to have an upper vertical surface portion 3E, and the upper vertical surface portion 3E is detachable.
In such a configuration, the distance H1a between the upper edge of the vertical surface portion 3B with the upper vertical surface portion 3E removed from the support bracket 3 and the lower edge of the lower frame 13 of the upper curtain wall unit 11A is lower side. This is set to be larger than the distance H2 between the upper edge of the upper frame 12 of the curtain wall unit 11B and the lower edge of the fastener extension 22.
That is, the distance H1a> the distance H2.
Therefore, if the upper vertical surface 3E is removed, the fastener 20 does not hit the support bracket 3 when the upper frame 12 of the curtain wall unit 11B is fitted to the lower frame 13 of the curtain wall unit 11A.
Note that the distance H1b between the upper edge of the upper vertical surface 3E attached to the support bracket 3 and the lower edge of the lower frame 13 of the upper curtain wall unit 11A may be smaller than the distance H2. .
That is, the distance H1b <the distance H2.
According to the above configuration, the curtain wall unit 11 can be smoothly attached even if the fastener main body portion 21 and the fastener extension portion 22 of the fastener 20 are not separated.

Furthermore, it is also possible to adopt a configuration as shown in FIGS. 28 and 29 in which the fastener body 21 and the fastener extension 22 of the fastener 20 are integrated, and the support bracket 3 is also integrated. In this case, the distance H1 between the upper edge of the vertical surface portion 3B of the support bracket 3 and the lower edge of the lower frame 13 of the upper curtain wall unit 11A is equal to the upper frame 12 of the lower curtain wall unit 11B. The distance H2 is set larger than the distance H2 between the upper edge and the lower edge of the fastener extension 22.
That is, the distance H1> the distance H2.
For this reason, when the upper frame 12 of the curtain wall unit 11B is fitted to the lower frame 13 of the curtain wall unit 11A, the curtain wall unit 11 can be smoothly attached without the fastener 20 hitting the support bracket 3. In such a configuration, although the length dimension and tightening amount of the bolt 24A are slightly larger than those of the above-described embodiment and the above-described configurations of FIGS. 26 and 27, the fastener 20 and the support bracket 3 are separated. Therefore, it is possible to reduce the processing cost of the member.

In addition, the best configuration, method and the like for carrying out the present invention have been disclosed in the above description, but the present invention is not limited to this. That is, the invention has been illustrated and described with particular reference to certain specific embodiments, but without departing from the spirit and scope of the invention, Various modifications can be made by those skilled in the art in terms of material, quantity, and other detailed configurations.
Therefore, the description limiting the shape, material, etc. disclosed above is an example for easy understanding of the present invention, and does not limit the present invention. The description by the name of the member which remove | excluded the limitation of one part or all of such restrictions is included in this invention.

  The present invention is suitable for a curtain wall that forms the outer wall surface of a building, and is particularly suitable for the case where a new curtain wall is formed by a top-down method during the outer wall repair work of an existing building.

It is an external appearance figure which shows a part of building in which the outer wall surface was formed of the curtain wall which concerns on one Embodiment of this invention. It is a longitudinal cross-sectional view of the said curtain wall, and is sectional drawing shown by the arrow II-II line | wire in FIG. It is a longitudinal cross-sectional view which expands and shows the principal part of the said curtain wall, and is sectional drawing of the enclosure part III shown in FIG. FIG. 4 is an enlarged longitudinal sectional view showing a main part of the curtain wall, and is a sectional view of a surrounding part IV shown in FIG. 2. It is a cross-sectional view which expands and shows the principal part of the said curtain wall, and is sectional drawing shown by the arrow V-V line in FIG. It is a cross-sectional view which expands and shows the principal part of the said curtain wall, and is sectional drawing shown by an arrow VI-VI line in FIG. It is a longitudinal cross-sectional view which expands and shows a part of said curtain wall, and is sectional drawing of the enclosure part VII shown in FIG. It is a perspective view which shows the attachment procedure of the curtain wall unit which comprises the said curtain wall. It is a perspective view which shows the attachment procedure of the said curtain wall unit following FIG. FIG. 10 is a perspective view showing a procedure for attaching the curtain wall unit following FIG. 9. It is a perspective view which shows the attachment procedure of the said curtain wall unit following FIG. FIG. 12 is a perspective view showing a procedure for attaching the curtain wall unit following FIG. 11. It is a perspective view which shows the attachment procedure of the said curtain wall unit following FIG. It is a perspective view which shows the attachment procedure of the said curtain wall unit following FIG. It is a perspective view which shows the attachment procedure of the said curtain wall unit following FIG. It is a longitudinal cross-sectional view which expands and shows the attachment part of the said curtain wall unit. It is a longitudinal cross-sectional view which expands and shows the attachment part of the said curtain wall unit. It is a longitudinal cross-sectional view which shows the water stop structure of the said curtain wall. It is a cross-sectional view showing the water stop structure of the curtain wall. It is the perspective view which abbreviate | omitted a part of said curtain wall. It is a perspective view which shows the connection member provided in the lower frame of the said curtain wall unit. It is the perspective view which looked up at the curtain wall unit from the lower part, and is a figure showing the attachment procedure of the connecting member. It is the perspective view which looked up at the curtain wall unit from the lower part, and is a figure showing the attachment procedure of the connecting member. It is the perspective view which looked up at the curtain wall unit from the lower part, and is a figure showing the attachment procedure of the connecting member. It is the perspective view which looked up at the curtain wall unit from the lower part, and is a figure showing the attachment procedure of the connecting member. It is a longitudinal cross-sectional view which expands and shows the attachment part of the curtain wall unit which concerns on the modification of the said embodiment. It is a longitudinal cross-sectional view which expands and shows the attachment part of the curtain wall unit which concerns on the modification of the said embodiment. It is a longitudinal cross-sectional view which expands and shows the attachment part of the curtain wall unit which concerns on the modification of the said embodiment. It is a longitudinal cross-sectional view which expands and shows the attachment part of the curtain wall unit which concerns on the modification of the said embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 2 ... Floor slab which is a building frame, 3 ... Support bracket which is a support means, 3A ... Horizontal plane part which is 1st surface part, 3B ... Vertical surface part which is 2nd surface part, 10 ... Curtain wall, 11, 11A, 11B ... Curtain Wall unit, 12 ... upper frame, 13 ... lower frame, 14, 15 ... vertical frame, 17 ... glass panel as face material, 18 ... movable shoji as face material, 20 ... fastener as fastening means, 21 ... fastener body Part, 21C ... engagement groove, 22 ... fastener extension part, 22B ... convex part, 23A, 24A ... bolt as fixing tool, 23B, 24B ... nut as fixing tool, 30 ... temporary fastening bracket, 30A ... engagement Stop piece part, 40 ... Splicer which is a connecting member, 45 ... Water stop material which is a sealing material.

Claims (12)

Support means provided in a building frame by arranging curtain wall units having a frame body having a quadruple frame of an upper frame, a lower frame, and left and right vertical frames, and a face material supported by the frame body, arranged vertically and horizontally. And a curtain wall configured by fitting the opposing frame bodies of the curtain wall unit together,
The upper part of the curtain wall unit or the upper part of the vertical frame is provided with a fixing means connected to the support means to fix the curtain wall unit to a building frame,
Temporary fixing means for temporarily fixing the curtain wall unit to the building frame is provided at a lower part of the lower frame or the vertical frame of the curtain wall unit arranged at least on both ends of the curtain wall unit. And
The curtain wall unit is attached in order from the upper floor to the lower floor of the building, and when it is attached, the upper frame is fitted into the lower frame of the upper curtain wall unit already attached to the upper side of the curtain wall unit. The curtain wall is coupled to the support means and the temporary fastening means restricts movement in the prospective direction below the curtain wall unit. The temporary fixing means is a temporary fixing bracket that is detachably attached to the lower frame or the lower portion of the vertical frame and is attached to the indoor side,
When the curtain wall unit is attached, a lower support means for supporting the lower curtain wall unit disposed on the lower side of the curtain wall unit is provided, and the temporary fixing bracket is provided on the lower support means. The movement of the curtain wall unit is regulated by locking
The curtain wall according to claim 1, wherein the temporary fixing bracket is removed from a lower part of the lower frame or the vertical frame before the lower curtain wall unit is attached. The support means is a support bracket having a first surface portion fixed to the building frame and a second surface portion extending upward from an outdoor edge of the first surface portion,
3. The curtain wall according to claim 2, wherein the temporary fixing bracket includes a locking piece portion that extends to the indoor side and bends downward to be locked to the indoor side surface of the second surface portion. Support means provided in a building frame by arranging curtain wall units having a frame body having a quadruple frame of an upper frame, a lower frame, and left and right vertical frames, and a face material supported by the frame body, arranged vertically and horizontally. And a curtain wall configured by fitting the opposing frame bodies of the curtain wall unit together,
The upper part of the curtain wall unit or the upper part of the vertical frame is provided with a fixing means connected to the support means to fix the curtain wall unit to a building frame,
The fixing means includes a main body fixed to the upper part of the upper frame or the vertical frame, and an extending part that is detachably attached to the main body and extends to the indoor side. ,
The curtain wall unit is attached in order from the upper floor to the lower floor of the building, and the upper curtain wall unit already attached on the upper side of the curtain wall unit with the extension portion removed at the time of installation. The upper frame is fitted to a lower frame, and the main body portion of the fixing means is connected to the support means, and the extension portion attached to the main body portion is connected to the support means, and the curtain wall Curtain wall where the unit is fixed to the building frame. An engaging groove having a substantially C-shaped cross section extending horizontally is formed in one of the main body portion and the extending portion of the fixing means, and a convex portion engaging with the engaging groove is formed in the other. ,
The curtain wall according to claim 4, wherein the extension part is attached to the main body part by engaging the engagement groove and the convex part from a side of the main body part. The support means is a support bracket having a first surface portion fixed to the building frame and a second surface portion extending upward from an outdoor edge of the first surface portion,
The main body portion of the fixing means is connected to an outdoor side surface of the second surface portion via a fixing tool, and the extension portion is connected to an upper end edge of the second surface portion via a fixing tool. The curtain wall according to claim 4 or 5.   On the lower side of the lower frame of the curtain wall unit arranged adjacent to the left and right, a connecting member is provided for connecting the lower frames across both lower frames, and the connecting member and the lower frame The curtain wall according to any one of claims 1 to 6, wherein a sealing material is interposed between the two. The connecting member is attached to the lower frame of one of the curtain wall units before the installation of the curtain wall unit adjacent to the left and right,
The curtain wall according to claim 7, wherein after connecting the adjacent curtain wall units, the connecting member is slid and moved along the lower frame to a position straddling both the lower frames. Support means provided in a building frame by arranging curtain wall units having a frame body having a quadruple frame of an upper frame, a lower frame, and left and right vertical frames, and a face material supported by the frame body, arranged vertically and horizontally. And a curtain wall mounting method configured by fitting the opposing frame bodies of the curtain wall unit together,
The upper part of the curtain wall unit or the upper part of the vertical frame is provided with a fixing means connected to the support means to fix the curtain wall unit to a building frame,
Temporary fixing means for temporarily fixing the curtain wall unit to the building frame is provided at a lower part of the lower frame or the vertical frame of the curtain wall unit arranged at least on both ends of the curtain wall unit. And
When the curtain wall units are sequentially attached from the upper floor to the lower floor of the building, the upper frame is fitted to the lower frame of the upper curtain wall unit already attached to the upper side of the curtain wall unit, and the fixing means The curtain wall is attached to the support means and the temporary fixing means restricts the movement in the prospective direction at the lower part of the curtain wall unit. The temporary fixing means is a temporary fixing bracket that is detachably attached to the lower frame or the lower portion of the vertical frame and is attached to the indoor side,
When the curtain wall unit is attached, a lower support means for supporting the lower curtain wall unit disposed on the lower side of the curtain wall unit is provided, and the temporary fixing bracket is provided on the lower support means. The movement of the curtain wall unit is regulated by locking
The method for attaching a curtain wall according to claim 9, wherein the temporary fixing bracket is removed from a lower portion of the lower frame or the vertical frame before the lower curtain wall unit is attached. Support means provided in a building frame by arranging curtain wall units having a frame body having a quadruple frame of an upper frame, a lower frame, and left and right vertical frames, and a face material supported by the frame body, arranged vertically and horizontally. And a curtain wall mounting method configured by fitting the opposing frame bodies of the curtain wall unit together,
The upper part of the curtain wall unit or the upper part of the vertical frame is provided with a fixing means connected to the support means to fix the curtain wall unit to a building frame,
The fixing means includes a main body fixed to the upper part of the upper frame or the vertical frame, and an extending part that is detachably attached to the main body and extends to the indoor side. And
When the curtain wall units are sequentially attached from the upper floor to the lower floor of the building, the upper wall is attached to the lower frame of the upper curtain wall unit already attached to the upper side of the curtain wall unit with the extension portion removed. A curtain wall mounting method in which a frame is fitted, the main body portion of the fixing means is connected to the support means, the extension portion is attached to the main body portion, and the extension portion is connected to the support means. On the lower side of one lower frame of the curtain wall unit arranged adjacent to the left and right, a connecting member that connects the lower frames across both lower frames is attached in advance,
After attaching the adjacent curtain wall units, the connecting member is slid along the lower frame to a position straddling both lower frames, and the space between the connecting member and the lower frame is sealed. The method for attaching a curtain wall according to claim 11.

Images