JP5892782B2 - Curtain wall type outer wall structure - Google Patents

Description

  The present invention relates to a curtain wall type outer wall structure in which an outer wall panel is fixed in a curtain wall type to a structural frame composed of column beams of a building.

  Conventionally, in the curtain wall type outer wall structure, the outer wall panel is fixed to the structural frame composed of column beams by fixing the upper end portion and the lower end portion of the outer wall panel to the beam through hardware.

  In this curtain wall type outer wall structure, when the frame is deformed between layers due to an earthquake, etc., the outer wall panel rotates using vertical and horizontal clears provided on the hardware, so that the deformation of the outer wall panel itself is suppressed and damaged. It has a structure that avoids.

Japanese Patent Laid-Open No. 10-072886

  However, in the conventional outer wall structure of the curtain wall type, it is not considered to replace the outer wall panel, and it has not been possible to perform reforming with replacement of the outer wall panel. For this reason, the fixed type which cannot also remove the load-bearing walls, such as the load-bearing brace attached to a structural frame, is adopted.

  In view of the problems as described above, an object of the present invention is to provide a curtain wall type outer wall structure capable of replacing the outer wall panel and changing the arrangement of the bearing walls.

The above problem is a curtain wall type outer wall structure in which an outer wall panel is suspended on the outdoor side of a structural frame composed of column beams,
Separately from the outer wall panel, a load-bearing panel that bears the horizontal load-bearing capacity is disposed on the indoor side of the outer wall panel, and is disposed between the columns of the structural frame. It is solved by an outer wall structure characterized by being fixed to the beam.

  This outer wall structure is a curtain wall type outer wall structure in which the outer wall panel is suspended on the outdoor side of the structural frame composed of column beams. Because it is arranged between the pillars of the structural frame, the outer wall panel and the load-bearing panel can be arranged using the space effectively, and the outer wall panel and the load-bearing panel do not interfere with each other. Therefore, the arrangement of the outer wall panel and the load-bearing panel can be performed without any restrictions even when the construction is arranged at the beginning or when the renovation or the like is changed.

  In addition, since the upper end and lower end of the load-bearing panel are fixed to the beams of the structural frame, they can be attached at any position between the columns of the structural frame, and the spacing between the columns is Even if it is large, the load-bearing panel having a width dimension necessary for the structure of the load-bearing panel can be adopted without being limited by the interval between the columns. For this reason, for example, in order to provide a wide outer wall panel in the width direction, even when a large interval between columns is taken, a load-bearing panel having an appropriate width dimension not depending on the column interval is not limited by the column interval. Can be adopted.

  In the outer wall structure, it is preferable that the load-bearing panel has a substantially ladder shape including a vertical member at both left and right ends and at least two horizontal members connecting the vertical members. Moreover, it is good that a load-bearing wall panel is removable.

  Since the load-bearing panel has a substantially ladder shape consisting of vertical members at both left and right ends and at least two horizontal members that connect the vertical members, the structural frame is placed via the upper and lower ends of the vertical members at both left and right ends. Since it can be fixed to the beam and is independent of the load-bearing panel alone, the load-bearing panel can be arbitrarily removed from the structural frame, and can be easily attached to other locations, and there are no restrictions on changing the placement of the load-bearing panel It can be carried out. Furthermore, since the load-bearing panel has a substantially ladder shape, the performance of the load-bearing panel can be easily changed not only by changing the cross-sectional shape but also by changing the number of horizontal members.

  Since the present invention is as described above, it is possible to provide a curtain wall type outer wall structure that can replace the outer wall panel and change the layout of the bearing walls.

FIG. 1A is a cross-sectional plan view showing an outer wall structure according to an embodiment of the present invention, FIG. 2B is a cross-sectional side view taken along line AA of FIG. 1A, and FIGS. It is a partially expanded side view of a figure (b). FIG. 1 (a) is a front view showing an outer wall structure composed of a column beam to which an outer wall panel is attached, and FIG. 2 (b) is a sectional view taken along line BB of FIG. Fig. (A) is a front view showing the load-bearing panel, Fig. (B) is a sectional view taken along the line DD of Fig. (A), Fig. (C) is a sectional view taken along the line CC of Fig. (A), (D) is a top view which shows an end plate. FIG. 1 (a) is a partially enlarged perspective view showing an attachment state of the outer wall panel to the structural housing, and FIG. 2 (b) is a cross-sectional plan view showing a column of the structural housing. It is a cross-sectional top view which shows the attachment condition of an adjacent outer wall panel. Fig. (A) is a cross-sectional front view showing the state of attachment of the outer wall panel support material to the outer wall panel locking body other than the lowermost end, and Fig. (B) is the outer wall panel support material to the lowermost outer wall panel locking body. It is a cross-sectional front view which shows the attachment condition. It is a partial cross section side view which shows the transmission condition of the load from an outer wall panel to the pillar of a structural frame.

  Next, embodiments of the present invention will be described with reference to the drawings.

  In the outer wall structure 1 which is an embodiment of the present invention shown in FIGS. 1 and 2, 50 is a load-bearing panel, 2 is an outer wall panel, 3 is an outer wall panel support material, 4 is a column of the structural frame, and 5 is a beam of the structural frame. .

  The load-bearing panel 50 and the outer wall panel 2 are as shown in FIG. 2, and are on the outdoor side of a structural frame composed of columns 4 and 4 that are vertically arranged on the left and right sides and beams 5 and 5 that are horizontally arranged on the top and bottom. The outer wall panel 2 is suspended in the form of a curtain wall. Here, the upper and lower beams 5 and 5 are made of H-shaped steel made of a web connecting the upper flange, the lower flange, and the upper and lower flanges, and the left and right columns 4 and 4 are made of C-shaped steel. The shape of the beam is not limited, and the lower beam may be a concrete foundation.

  As shown in FIG. 3, the load-bearing panel 50 includes vertical members 50 a and 50 a at both left and right ends and a horizontal member 50 b that connects the vertical members 50 a, and has a substantially ladder shape. Here, five horizontal members 50b are provided at intervals in the vertical direction.

  The vertical members 50a are formed of rectangular rectangular steel pipes having different cross-sectional aspect ratios, and are arranged so that the longitudinal direction is parallel to the width direction of the load-bearing panel. The horizontal member 50b is made of U-shaped grooved steel, and is fixed between the vertical members 50a with the openings of the horizontal members 50b aligned.

  End plates 51 for engaging with the column beams are respectively attached to the upper and lower ends of the vertical members 50a, 50a. Bolts for fixing the column beams are inserted into the center portions of the end plates 51, and A substantially U-shaped opening 51a that opens toward one side of the end plate 51 is opened in the same direction in all the upper and lower portions of the left and right vertical members 50a. Further, on one side surface of both ends of the vertical member 50a, there is provided an access portion 52 for accessing when fixing a nut to a bolt inserted into the end plate 51. Here, the access portion 52 and the end are provided. The openings 51 of the plate 51 are provided on the same side so as to be on the indoor side of the load-bearing panel 50.

  As shown in FIGS. 1 (a) and 2, the load-bearing panel 50 is formed on the outdoor side of the outer wall panel 2 independently of the outer wall panel 2, and is composed of structural frame columns 4 and 4 and beams 5 and 5. Placed in the space to be. The load-bearing panel 50 is fixed to the upper and lower beams 5 and 5 with bolts and nuts via end plates 51 attached to both ends of the left and right vertical members 50a and 50a.

  As shown in FIG. 3D, in the end plate 51, a substantially U-shaped opening 51a that opens toward one side is opened in the same direction in all the upper and lower portions of the left and right vertical members 50a. Therefore, it is possible to remove the load-bearing panel 50 from the structural housing simply by moving it in the horizontal direction, here the outdoor direction.

  Here, a load-bearing panel having a width that is approximately half the width between the columns 4 and 4 is used in accordance with the load-bearing strength required for the load-bearing panel. A load-bearing panel having the same width as the dimensions may be selected as necessary.

  Next, the outer wall panel and the method for suspending the outer wall panel will be described.

  As shown in FIG. 2, the outer wall panel 2 is provided on the outdoor side of a structural frame composed of columns 4 and 4 arranged in the vertical direction on the left and right sides and beams 5 and 5 arranged in the horizontal direction on the upper and lower sides. Suspended in curtain wall form. Here, the upper and lower beams 5 and 5 are made of H-shaped steel made of a web connecting the upper flange, the lower flange, and the upper and lower flanges, and the left and right columns 4 and 4 are made of C-shaped steel. The shape of the beam is not limited, and the lower beam may be a concrete foundation.

  The outer wall panel 2 is an outer wall panel frame in which a frame body is constituted by left and right vertical frames 6 and 6 made of channel steel composed of a web connecting flanges and upper and lower horizontal frames 7 and 7 also made of channel steel. On one side, a plate-like outer heat insulating material 8 made of urethane foam, a base frame 9 extending in the vertical direction disposed at the end of the outer heat insulating material, and the outer heat insulating material 8 and the base frame 9 are interposed. The outer wall surface material 10 is fixed to the outer wall panel frame. Reference numeral 11 denotes a ventilation layer extending in the vertical direction, which is constituted by the outer heat insulating material 8, the base bar 9, and the outer wall surface material 11. Further, 12 is a fiber-based heat insulating material filled in the outer wall panel frame, and 13 is a moisture-permeable waterproof sheet for holding the fiber heat insulating material 12 in the outer wall panel frame.

  As shown in FIGS. 1 (b) and 4 (a), the web 6a of the vertical frame 6 is provided with holes 14 for fixing the outer wall panel support 3 at predetermined intervals, and the inner side 6b of the vertical frame. A nut 15 is attached so as to be concentric with the hole 14.

  As shown in FIG. 1 and FIG. 4A, the outer wall panel support 3 is a column side abutting portion 3 a that abuts against a wall surface side surface of the column 4, and a side surface that is a web portion of the vertical frame 6 of the outer wall panel 2. The outer wall panel abutting portion 3b that abuts with the column side surface abutting portion 3a and the outer wall panel abutting portion 3b are connected to both the indoor and outdoor side surfaces of the column 4 and the side surface that is the flange portion of the vertical frame 6. It is a support member having a substantially Z-shaped cross section, which is composed of a connecting portion 3c that abuts.

  The outer wall panel abutting portion 3b of the outer wall panel support member 3 is provided with a hole 3d through which the shaft portion 16b of the countersunk bolt 16 is inserted and engaged with the head portion 16a. The hole 14 and the nut provided in the vertical frame 6 The outer wall panel support 3 is fixed to the vertical frame 6 of the outer wall panel 2 by fixing the countersunk bolt 15 to the outer wall panel support 3.

  As shown in FIG. 5, the adjacent outer wall panels 2 and 2 are connected to each other through the outer wall panel support members 3 and 3 fixed to the vertical frames 6 and 6, respectively. In other words, between the vertical frames 6 and 6 of the outer wall panels 2 and 2, the outer wall panel abutting portions 3 b of the outer wall panel support members 3 and 3 are fixed to the vertical frames 6 and 6. Since it is ensured by the thickness of 3b, the head 16a of the countersunk bolt 16 that fixes the outer wall panel support member 3 to the vertical frame 6 does not protrude out of the surface of the outer wall panel support member 3, and fits within the plate thickness. As described above, the hole 3d through which the countersunk bolt 16 is inserted is tapered according to the head 16a of the countersunk bolt 16.

  On the other hand, the column side abutting portion 3 a of the outer wall panel support 3 is provided with a notch 3 e for engaging with the outer wall panel locking body 17 fixed to the column 4.

  As shown in FIG. 4 (b), the outer wall panel locking body 17 includes a long bolt 17 a as a main body portion that is passed through holes 4 a and 4 a provided on opposite side surfaces of the column 4, and both sides of the column 4. It consists of nuts 17b and 17b fixed to long bolts 17a protruding from the surface. On the surface of the nut 17b on the column 4 side, a taper 17c is provided for guiding the locking of the notch 3e of the column side contact portion 3a of the outer wall panel support member 3. In addition, 18 is interposed between the pillar 4 and the outer wall panel support material 3, and prevents the vibration of the pillar 4 as a vibration countermeasure and prevents the rubbing sound between the pillar 4 and the outer wall panel support material 3 during an earthquake. This is a vibration spacer.

  As shown in FIGS. 1 and 4, the outer wall panel 2 is detachably suspended from the pillar 4 via the outer wall panel support member 3..., And here, four outer wall panels are spaced apart in the vertical direction. It is locked by the support material 3. Of the four outer wall panel supporting members 3..., The other outer wall panel supporting members 3 except the lowermost outer wall panel supporting member 3 are arranged in the horizontal direction with respect to the outer wall panel locking body 17 fixed to the column 4. While the displacement is restricted, the load on the outer wall panel 2 is not transmitted to the pillar 4 via the outer wall panel support 3. Here, as shown in FIGS. 1 (c) and 6 (a), the width of the notch 3 e provided in the column side surface abutting portion 3 a of the outer wall panel support member 3 is the main body of the outer wall panel locking body 17. The depth of the notch 3e is adjusted so that the gap is small when the lowermost outer wall panel support member 3 is supported by the lowermost outer wall panel locking body 17. It is set to be possible.

  On the other hand, among the four outer wall panel supporting members 3..., The lowermost outer wall panel supporting member 3 is restricted from being displaced in the horizontal direction with respect to the outer wall panel locking body 17 fixed to the column 4. The load of the panel 2 is transmitted to the pillar 4 via the outer wall panel support 3. Here, as shown in FIGS. 1 (d) and 6 (b), the width of the notch 3e provided in the column side surface abutting portion 3a of the outer wall panel support member 3 is the main body of the outer wall panel locking body 17. The depth dimension of the notch 3e is adjusted to the diameter of the long bolt 17a as a portion, and the outer wall panel locking body through the notch 3e when the outer wall panel support 3 is supported by the outer wall panel locking body 17 17 is set to transmit the load.

  Here, the outermost panel support member 3 at the lowermost end is attached to a position of 1/4 or less of the total length of the column 4 from the lower end of the column 4.

  In this curtain wall type outer wall structure 1, as shown in FIG. 7, for example, against a horizontal load such as wind pressure applied to the outer wall panel 2, a pillar 4 that is a structural frame via an outer wall panel support member 3. However, the vertical load of the outer wall panel 2 is transmitted to the column 4 only through the outermost wall panel support 3 at the lowermost end.

  This outer wall structure is a curtain wall type outer wall structure in which the outer wall panel is suspended on the outdoor side of the structural frame composed of column beams, but separately from the outer wall panel, the load-bearing panel that bears the horizontal strength is the outer wall panel. Because it is arranged between the pillars of the structural frame, the outer wall panel and the load-bearing panel can be arranged using the space effectively, and the outer wall panel and the load-bearing panel do not interfere with each other. Therefore, the arrangement of the outer wall panel and the load-bearing panel can be performed without any restrictions even when the construction is arranged at the beginning or when the renovation or the like is changed.

  In addition, since the upper end and lower end of the load-bearing panel are fixed to the beams of the structural frame, they can be attached at any position between the columns of the structural frame, and the spacing between the columns is Even if it is large, the load-bearing panel having a width dimension necessary for the structure of the load-bearing panel can be adopted without being limited by the interval between the columns. For this reason, for example, in order to provide a wide outer wall panel in the width direction, even when a large interval between columns is taken, a load-bearing panel having an appropriate width dimension not depending on the column interval is not limited by the column interval. Can be adopted.

  Since the load-bearing panel has a substantially ladder shape consisting of vertical members at both left and right ends and at least two horizontal members that connect the vertical members, the structural frame is placed via the upper and lower ends of the vertical members at both left and right ends. Since it can be fixed to the beam and is independent of the load-bearing panel alone, the load-bearing panel can be arbitrarily removed from the structural frame, and can be easily attached to other locations, and there are no restrictions on changing the placement of the load-bearing panel It can be carried out. Furthermore, since the load-bearing panel has a substantially ladder shape, the performance of the load-bearing panel can be easily changed not only by changing the cross-sectional shape but also by changing the number of horizontal members.

  In this outer wall structure, the outer wall panel is realized in the form of a curtain wall, attached to the structural frame composed of column beams, and the vertical frame of the outer wall panel is suspended on the column of the structural frame by the outer wall panel support material. Therefore, even if it is a curtain wall type outer wall structure that bears all the wind pressure with the outer wall panel frame, compared with the case where the outer wall panel is installed between the beams that are spaced apart due to the height of the building floor, The rigidity of the outer wall panel frame attached between the columns may be small, and the cross-sectional dimension of the outer wall panel frame can be set small. And since the cross-sectional dimension of the outer wall panel frame can be reduced, it is possible to design economically, as well as to reduce the space of the frame material and to secure the space for filling the heat insulating material. .

  In addition, since the outer wall panel is simply suspended from the pillar by the outer wall panel support material, only the outer wall panel can be easily removed even after the building is completed, and it can be flexibly adapted during renovation and repair. .

  In addition, the outer wall panel is suspended by at least two outer wall panel support members in the vertical direction with respect to the column of the structural frame, and the vertical load of the outer wall panel is used only for the outer wall panel support member at the lowest end. Since the portion of the structural frame column where the axial force is applied is limited to the range in which the outermost panel support material at the lowest end is suspended from the lower end of the column, the axial direction applied to the column Since the load bearing range of the column is limited to the lower part with respect to the load, the buckling strength of the column can be increased, the sectional shape of the column can be reduced, and an economical design can be performed.

  Moreover, since the outer wall panel is partially supported by the outer wall panel support material, the thermal bridge can be reduced, and further, a heat insulating layer is provided outside the structural frame, and the heat insulating layers of the respective outer wall panels are made continuous. Thus, the heat insulation performance can be improved.

  Furthermore, the buckling proof strength of the column can be further improved by attaching the outermost panel support member at the lowermost end to the position of 1/4 or less of the total length of the column from the lower end of the column of the structural frame.

  Although the embodiment of the present invention has been described above, the present invention is not limited to this, and various modifications can be made without departing from the spirit of the invention. For example, in the above-described embodiment, the load-bearing panel has been illustrated as having a substantially ladder shape composed of vertical members at both left and right ends and at least two horizontal members connecting the vertical members. It is not necessary to be limited to this form, and it is needless to say that it may be composed of columns, beams, and braces, and may have other configurations.

  Moreover, in the said embodiment, although shown about the case where it was a support material of cross-sectional substantially Z type | mold consisting of a column side surface contact part, an outer wall panel contact part, and a connection part as an outer wall panel support material, there is no restriction | limiting in the shape. Any shape can be used.

  Moreover, there is no restriction | limiting also about the attachment method of an outer wall panel support material and a pillar, Arbitrary methods may be selected in the range in which the vertical load of an outer wall panel is transmitted to a pillar only by the outer wall panel support material of the lowest end.

  Moreover, in the said embodiment, although shown about the case of an external heat insulation ventilation outer wall as an outer wall panel, there is no restriction | limiting in the structure of an outer wall panel, and it cannot be overemphasized that arbitrary structures may be selected.

DESCRIPTION OF SYMBOLS 1,31 ... Outer wall structure 2,32 ... Outer wall panel 3,33 ... Outer wall panel support material 4 ... Column (structure housing)
5 ... Beam (Structural frame)
6 ... Vertical frame (outer wall panel)
7 ... Horizontal frame (outer wall panel)
8 ... Outer insulation material 9 ... Base rail 14 ... Hole (outer wall panel)
15 ... Nut (outer wall panel)
16 ... Countersunk bolt 17 ... Outer panel locking body 50 ... Strength panel 50a ... Longitudinal material (strength panel)
50b ... Horizontal members (strength panels)
51 ... End plate (strength panel)
51a ... Opening (end plate (strength panel))
52 ... Access section (strength panel)

Claims (3)

A curtain wall type outer wall structure in which an outer wall panel is suspended on the outdoor side of a structural frame composed of column beams,
The outer wall panel is configured by a left and right vertical frame and an upper and lower horizontal frame,
A column side contact portion that contacts the side surface of the column;
An outer wall panel abutting portion that abuts a side surface of the vertical frame of the outer wall panel;
The vertical frame of the outer wall panel is connected by the outer wall panel support material having a substantially Z-shaped cross section that connects the column side abutting portion and the outer wall panel abutting portion, and includes a connecting portion that abuts the indoor side surface of the vertical frame and the outdoor side surface of the column. Is suspended on the pillar of the structural frame ,
The outer wall panel support is
At the outer wall panel contact part, it is fixed to the vertical frame of the outer wall panel,
At the column side abutment, it is removably suspended on the column of the structural frame,
The outer wall panel is suspended by at least two or more outer wall panel support members in the vertical direction with respect to the pillar of the structural frame,
The outermost panel support material at the bottom end transmits the vertical load of the outer wall panel to the column, and the remaining outer wall panel support materials do not transmit the vertical load of the outer wall panel to the column.
Separately from the outer wall panel, a load-bearing panel that bears the horizontal load-bearing capacity is disposed on the indoor side of the outer wall panel, and is disposed between the columns of the structural frame. Curtain wall type outer wall structure characterized by being fixed to the beam. The curtain wall type outer wall structure according to claim 1, wherein the load-bearing panel has a substantially ladder shape composed of vertical members at both left and right ends and at least two horizontal members connecting the vertical members. The outer wall structure of the curtain wall type according to any one of claims 1 to 2, wherein the load-bearing panel is removable.

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