JP2004211344A - Supporting structure of exterior wall panel and erection method for panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a panel supporting structure with a simple constitution at a low cost, facilitating the attaching and detaching work for a panel. <P>SOLUTION: The panel supporting device 3 of a corner section is equipped with an upper fastener 11 supporting an upper stage side panel and a pair of right and left lower fasteners 14A and 14B supporting a lower stage side panel, panel lower metal fittings 15A and 15B capable of being engaged with the upper fastener 11 are mounted to the lower end side corner sections of the panel P, and panel upper metal fittings 16A and 16B capable of being engaged with the lower fasteners 14A and 14B are mounted to the upper end side corner sections. The upper fastener 11 has a self-weight supporting piece 13a forming the front end section in an approximately arc shape, the panel lower metal fittings 15A and 15B have an engaging groove 15d having the bottom section in an approximately arch-shape and wherein the self-weight supporting piece 13a is fitted, and in the case the upper end side of the panel P is not supported, the panel P can be inclined within a range of a predetermined angle with the engaging section as the center. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a curtain wall structure for directly supporting a panel such as a sheet glass on an outer wall portion of a building or the like, and more specifically, does not have a frame-frame-like panel supporting material and directly supports four corners and the like of a panel. In particular, the present invention relates to a support structure of an outer wall panel and a panel building method in a frameless construction method in which an outer wall surface is constituted only by panels.
[0002]
[Prior art]
In recent years, due to the diversification of the curtain wall structure, there has been no panel support material in the form of a frame. A frameless construction method for forming a wall surface is becoming widespread. Various structures have been conventionally proposed as a panel support structure of the frameless construction method.
[0003]
Recently, for example, Patent Literature 1 listed below has proposed a panel support structure that has a simple structure, facilitates construction and replacement of panels, and further reduces costs. As shown in FIGS. 15 and 16, the support structure of the panel includes a fixed bracket 50 fixed to a support member provided on a building structure, and an upper portion provided with a rod on the back surface coupled to the fixed bracket 50. A bracket 51 comprising a bracket 51 and left and right lower brackets 52A and 52B which are divided into two parts and which are detachably attached to the upper bracket 51; And a plurality of face plate fasteners 53A to 53D provided with a face plate insertion hole 53a inserted into a corner of the bracket and a bracket insertion hole 53b opened inward on the back side and inserted into a corner of the brackets 51, 52A, 52B. It is provided with.
[0004]
According to Patent Document 1, in mounting the panel, face plate fasteners 53A to 53D are respectively attached to corners of the face plate P, and bracket insertion holes 53b of the face plate fasteners 53A and 53B below the face plate P are provided in the lower part. After the lower brackets 52A and 52B are inserted into the bracket insertion holes 53a of the upper end side plate fasteners 53C and 53D, respectively, while the front plate P is tilted forward, the front plate P is substantially vertically inserted. It is described that the lower brackets 52A and 52B are connected to the upper bracket 51 by bolts and fixed.
[0005]
[Patent Document 1]
JP 2001-220848 A
[Problems to be solved by the invention]
However, in the support structure of Patent Document 1, as shown in FIG. 16, the face plate fasteners 53A and 53B provided at the lower end corners of the face plate P are actually fitted to the upper bracket 51 while the face plate P Is not structured to be tilted forward, and if the face plate P is forcibly tilted, excessive bending stress is generated in the face plate P and the face plate fasteners 53A and 53B, and there is a problem that there is a risk of breakage. there were. Unless the face plate P has a structure that can be easily tilted, there is a problem that the face plate P cannot be easily replaced when some face plates are damaged.
[0007]
Accordingly, a main object of the present invention is to provide a frameless construction method in which an outer wall surface is constituted only by a panel by directly supporting four corners of the panel and the like. An object of the present invention is to provide a support structure of an outer wall panel and a panel installation method which can be easily removed (replaced).
[0008]
[Means for Solving the Problems]
As the present invention according to claim 1 to solve the above-described problem, panels arranged adjacent to the outer wall portion of the building in the up, down, left, and right directions are arranged at corner intersections where the corners of the panels abut each other, In the support structure of the outer wall panel, which is supported by the corner panel support device that connects the panel and the structural support,
The corner panel support device includes an upper fastener that supports two left and right panels located on the upper side, and a pair of left and right lower fasteners that respectively support two left and right panels located on the lower side, and Panel lower fittings engageable with the upper fastener are attached to lower end corners of the two left and right panels located on the side, and the upper left corners of the left and right two panels located on the lower side are attached to the lower side. A panel upper bracket that can be engaged with the lower fastener is attached,
One of the upper fastener and the panel lower metal fitting has a self-weight receiving support piece having an engagement surface having a substantially arc shape, and the other of the upper fastener and the panel lower metal fitting is fitted with the self-weight receiving support piece, The engagement surface of the weight receiving support piece has an engagement groove having a substantially arc shape, and when the upper end side of the panel is not supported, the panel is tilted around the engagement portion together with the panel lower bracket in a predetermined angle range. It is possible,
The lower fastener has an engaging piece for a panel upper metal fitting, and is detachable from a corner panel supporting device. The panel upper metal fitting has an engaging groove with which the engaging piece is engaged. A feature is provided for supporting the exterior wall panel.
[0009]
According to a second aspect of the present invention, in the panel lower metal fitting, a panel fitting groove for fitting a corner of the panel is formed on the outdoor side, and an engaging groove engageable with the upper fastener on the indoor side. The support structure for an outer wall panel according to claim 1, which is a member having:
[0010]
According to a third aspect of the present invention, in the panel upper fitting, a panel fitting groove portion into which a corner of the panel is fitted is formed on the outdoor side, and an engaging groove engageable with the lower fastener is formed on the indoor side. The support structure for an outer wall panel according to claim 1, which is a member having the same.
[0011]
The present invention according to claim 4, further comprising a side edge panel support device that supports an intermediate side edge portion of the panel, together with the corner panel support device, wherein the side edge panel support device includes two sheets located on the left and right. Along with a middle fastener that supports the panel, a panel side edge fitting that can be engaged with the middle fastener is attached to each side edge of the panel located on the left and right,
The intermediate fastener has an engagement piece for the panel side edge fitting, and is detachable from the side edge panel support device. The panel side edge fitting is engaged with the engagement piece. A support structure for an outer wall panel according to any one of claims 1 to 3, which has a groove.
[0012]
According to a fifth aspect of the present invention, there is provided a panel mounting method for a curtain wall having the support structure for an outer wall panel according to any one of the first to third aspects,
A first step of attaching the panel upper bracket to the upper end corner of the panel and attaching the panel lower bracket to the lower corner of the panel;
A second step of bringing the panel to a wall surface to be attached and engaging a panel lower bracket attached to a lower end corner of the panel with an upper fastener of the corner panel support device;
With the upper end side of the panel tilted to the outside of the room, the engagement piece of the lower fastener is engaged with the upper metal fitting of the panel, and after returning the panel to the vertical state, the lower fastener is fastened to the corner panel support device. And a third step.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
(Panel support structure)
FIG. 1 is an external view of a main part of a curtain wall according to the present invention, FIG. 2 is a view taken along line II-II of FIG. 1, and FIG. 3 is a view taken along line III-III of FIG.
[0014]
As shown in FIG. 1, in the curtain wall structure 1, panels P, P,. Without being used, the panels P, P are substantially supported by the panel support devices 3,..., 6 disposed at the corner intersections where the corners of the panels P abut and the middle side edges (two points). The outer wall is constituted only by the panels P, P.
[0015]
Hereinafter, the curtain wall structure 1 will be described in detail.
As shown in FIGS. 2 and 3, panel support brackets 2, 2... (Hereinafter simply referred to as support brackets) are fixed to the outdoor end surface of each floor frame F. Are supported by the corner panel support devices 3, 3,..., And the cubic members 4, 4,... Are erected between the floor frames F, F. Are provided at the tips of the struts 5, 5,... Protruding from the outside in the outdoor direction to support the middle side edges (two points) of the panel P. The strut members 5, 5 are suspended by a rod member 7 arranged in the direction of their own weight.
[0016]
As shown in detail in FIG. 4, the corner panel support device 3 includes an auxiliary bracket 10 fastened to the support bracket 2 by bolts and nuts 17 and 18, and an upper position of the auxiliary bracket 10. An upper fastener 11 fastened by bolts and nuts 19 and 20; a pair of left and right lower fasteners 14A and 14B fastened by bolts and nuts 21 and 22 at lower positions of the auxiliary bracket 10; The panel P includes lower panel metal fittings 15A and 15B, respectively, and panel P upper panel metal fittings 16A and 16B provided at upper corners.
[0017]
The auxiliary bracket 10 has a rectangular cross section, and has a fastener fastening portion 10A having an insertion hole 10a for the rod member 7 in the vertical direction, and extends from the indoor side surface of the fastener fastening portion 10A toward the indoor direction. And two bracket fastening plate portions 10B each having a long slot 10b extending in the indoor and outdoor directions, and the bolt / nut 17 is provided with the support bracket 2 inserted between the bracket fastening plate portions 10B and 10B. , 18. The position of the auxiliary bracket 10 can be adjusted in the indoor and outdoor directions by the slot 10b, and the panels P are adjusted so as to be positioned on the same vertical plane in the illustrated example. Further, the tension load generated on the rod member 7 is supported by each support bracket 2 by fastening the nut 23 to the upper and lower surfaces of the rod member 7 while the insertion hole 10a is inserted therethrough.
[0018]
Two bolt holes 10c and 10d are formed vertically on the side surface of the fastener fastening portion 10A, the upper bolt hole 10c is used as a fastening bolt hole for the upper fastener 11, and the lower bolt hole 10d is used for the lower fastener 14A. 14B is used as a fastening bolt hole.
[0019]
Next, the upper fastener 11 is a fastener metal body for engaging and supporting the base member 12 fastened to the upper side of the fastener fastening portion 10A and the panel lower hardware 15A, 15B attached to the lower end corner of the panel. 13 The base member 12 includes two fastening flanges 12 a and 12 b spaced apart in the horizontal direction, and is fastened to the auxiliary bracket 10 by bolts and nuts 19 and 20. The fastener body 13 is a member that supports the upper panels P and P in common, and is screwed to the base member 12 by a bolt 24 whose head is fitted into a lip-shaped groove formed on the back side. Is done. As shown in FIG. 5, the cross-sectional shape is such that the distal end portion (engaging surface) of the L-shaped bent piece 13a (self-weight receiving support piece of the present invention) forming a U-shaped cross-section groove is substantially arc-shaped. The bottom surfaces of the engagement grooves 15d of the panel lower brackets 15A and 15B, to which the ends of the L-shaped bent pieces 13a come into contact as described later, have a substantially arc shape, and the panel lower brackets 15A and 15B At the same time, the panel P can be tilted within a predetermined angle range, specifically, an angle range of several degrees around the lower end side as the center of rotation.
[0020]
The lower fasteners 14A and 14B are a pair of left and right members symmetrical with respect to a panel boundary line (vertical joint), and each have a cross-sectional shape having an engagement piece 14b directed in the horizontal direction. The auxiliary bracket 10 has a bolt hole 14a at its base end, and can be detachably attached to the lower side of the auxiliary bracket 10 with bolts and nuts 21 and 22.
[0021]
The panel lower fittings 15A and 15B have a panel fitting groove 15c in which a corner of the panel P is fitted on the outdoor side, and a lower side so as to be engageable with the upper fastener 11 on the indoor side. The bottom surface of the U-shaped engagement groove 15d is formed in a substantially arc shape like the tip shape of the L-shaped bent piece 13a. . In the panel fitting groove 15c, a fixed rubber material 25 is provided so as to surround the panel P. In addition to a function as a cushioning material for the panel P, once the panel P is inserted, panel lower brackets 15A and 15B are provided. It does not come off easily.
[0022]
On the other hand, the panel upper fittings 16A, 16B have a U-shaped panel fitting groove 16c in which the corner of the panel P is fitted on the outdoor side, and the lower fasteners 14A, 14B are locked on the indoor side. It is a member having an engagement groove 16d, and the engagement piece 14b of the lower fasteners 14A and 14B is inserted from the lateral direction into the engagement groove 16d to support the panel P. In the panel fitting groove 16c, a fixed rubber material 25 is provided so as to surround the panel P, functions as a cushioning material for the panel P, and once the panel P is inserted, the panel upper fittings 16A, 16B can be easily formed. So that it does not come off.
[0023]
Next, the side edge panel support device 6 for supporting the intermediate side edge of the panel P will be described in detail with reference to FIGS.
[0024]
As shown in detail in FIG. 7, a side edge panel support device 6 attached to the tip of the strut member 5 includes an auxiliary bracket 30 attached to the strut member 5 by bolts and nuts 33 and 34, and The auxiliary bracket 30 includes intermediate fasteners 31A and 31B fastened to the auxiliary bracket 30 by bolts and nuts 35 and 36, and panel side edge fittings 32A and 32B provided on the side edge of the panel P.
[0025]
The auxiliary bracket 30 has a rectangular cross-section, has a vertically inserted through-hole portion 30a for the rod member 7, and has two upper and lower bolt holes 30c formed on a side surface thereof, and a fastener fastening portion 30A. And a bracket fastening plate portion 30B having a bolt hole 30b formed therein and extending from the indoor side surface toward the interior of the vehicle. Fastened by nuts 33,34. The strut member 5 is held in the horizontal direction by fastening the nut 23 to the upper and lower surfaces of the rod member 7 with the insertion hole 30a inserted therethrough. The strut member 5 has a structure in which both ends are connected by pins, and only the axial force is transmitted to the cubic member 4.
[0026]
The intermediate fasteners 31A and 31B are a pair of left and right members symmetrical with respect to a panel boundary line, and have a cross-sectional shape having an engagement piece 31b directed in the horizontal direction. In addition, a bolt hole 31a is provided at the base end portion, and can be detachably attached to the auxiliary bracket 30 with bolts and nuts 35 and 36.
[0027]
The panel side edge fittings 32A and 32B have a panel fitting groove 32c in which the side edge of the panel P is fitted on the outdoor side, and the intermediate fasteners 31A and 31B are locked on the indoor side. It is a member having a U-shaped engagement groove 32d. The U-shaped engagement groove 32d is configured such that the engagement pieces 31b of the intermediate fasteners 31A and 31B are inserted from the lateral direction and the panel P is supported. Has become. In the panel fitting groove 32c, a fixed rubber material 25 is provided so as to surround the panel P. In addition to a function as a cushioning material for the panel P, once the panel P is inserted, the panel side edge fitting 32A, 32B is not easily pulled out.
[0028]
(How to build panels)
Next, a method for installing a panel of a curtain wall having the panel support structure will be described.
[0029]
As shown in FIG. 10, the support brackets 2, 2,... Are fixed to the outside end surfaces of the floor frames F at the corner panel support devices 3, 3,. , And the auxiliary bracket 10 is fixed to the support brackets 2, 2,. .. Are erected between the floor frames F, F, and strut members 5, 5,. Are supported by the rod member 7 so as to face the horizontal direction, and the auxiliary bracket 30 is fixed to the tip of the strut member 5.
[0030]
When the panel P is installed, the panel upper brackets 16A and 16B are attached to the upper end corners of the panel P in advance, and the panel lower brackets 15A and 15B are attached to the lower corners. The panel side metal fittings 32A and 32B are attached to the front. In the corner panel support device 3, an upper fastener 11 is attached to an upper side of the auxiliary bracket 10.
[0031]
When the panel P is brought into the wall surface to be mounted by a crane (not shown), as shown in FIG. 11, the upper fastener 11 of the corner panel support device 3 is located at the lower end corner of the panel. The panel's own weight is deposited in the corner panel support device 3 while engaging the attached panel lower brackets 15A and 15B.
[0032]
Next, as shown in FIG. 12, the engagement pieces 14b of the lower fasteners 14A, 14B are engaged with the panel upper fittings 16A, 16B while the upper end side of the panel P is slightly inclined to the outside of the room, The panel P is returned to the vertical state, and the lower fasteners 14A and 14B are fastened to the auxiliary bracket 10 of the corner panel support device 3. When the installation of the panel P is completed, the upper fastener 11 is attached to the upper side of the auxiliary bracket 10 in order to install the upper panel, as shown in FIG.
[0033]
On the other hand, at the side edge panel supporting device 6, the engagement pieces 31b of the intermediate fasteners 31A and 31B are engaged with the panel side edge fittings 32A and 32B, and the panel P is returned to the vertical state. 31A and 31B are fastened to the auxiliary bracket 30 of the side edge panel support device 6.
[0034]
The above steps are basically repeated in order from the lower side of the building to the upper side, so that the panel P is built on the outer wall.
[0035]
By the way, in the curtain wall structure 1 according to the present invention, the weight of the panel P is deposited in the upper fastener 11, and at the upper end side of the panel P, a vertical direction is provided between the panel upper brackets 16A and 16B and the lower fasteners 14A and 14B. is the gap M ₁ so as to permit the displacement formed (see FIG. 5), a gap that allows horizontal displacement between the panel side edge panels edge fittings 32A, 32B and an intermediate portion fastener 31A, and 31B M ₂ is formed (see FIG. 9). Therefore, as shown in FIG. 14, it is possible to follow the interlayer displacement of the panel P, so that an excessive stress is not generated in the panel P at the time of an earthquake, and the panel can be prevented from being damaged.
[0036]
(Other examples)
(1) In the above embodiment, an L-shaped bent piece 13a as a weight receiving support piece is formed on the upper fastener 11 side, and an engaging groove 15d with which the L-shaped bent piece 13a is engaged is formed on the panel lower brackets 15A and 15B. However, it is also possible to form a self-weight receiving support piece on the panel lower metal fittings 15A and 15B and form an engagement groove on the upper fastener 11 side.
[0037]
(2) In the above-described embodiment, the method of installing the panels has been described. However, in the case where some of the panels P are damaged, the damaged panels can be removed by performing the reverse procedure. That is, since the panel P has a structure that can be tilted about the lower end side as a center of rotation, if the lower fasteners 14A and 14B are removed, the upper end side of the panel P is tilted in the outdoor direction and removed by pulling it upward. Is possible.
[0038]
【The invention's effect】
As described in detail above, according to the present invention, the frameless construction method in which the outer wall surface is constituted only by the panel by directly supporting the four corners and the like of the panel can be particularly simplified in structure and cost can be reduced. ) And removal (replacement) can be easily performed.
[Brief description of the drawings]
FIG. 1 is an external view of a main part of a curtain wall according to the present invention.
FIG. 2 is a view (longitudinal sectional view) taken along line II-II of FIG.
FIG. 3 is a view (horizontal cross section) taken along line III-III in FIG. 1;
FIG. 4 is an exploded view of the corner portion panel support device 3.
FIG. 5 is a side view of the corner portion panel support device 3.
FIG. 6 is a plan view of the corner portion panel support device 3.
7 is an exploded view of the side edge panel support device 6. FIG.
8 is a side view of the side edge panel support device 6. FIG.
9 is a plan view of the side edge panel support device 6. FIG.
FIG. 10 is a view showing how to install a panel.
FIG. 11 is a diagram (part 1) illustrating a procedure for installing a panel.
FIG. 12 is a diagram (part 2) illustrating a procedure for installing a panel.
FIG. 13 is a diagram (part 3) illustrating the procedure for installing the panel.
FIG. 14 is a behavior diagram with respect to interlayer displacement.
FIG. 15 is a perspective view showing a conventional panel support device.
FIG. 16 is a side view thereof.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Curtain wall structure, 2 ... Support bracket, 3 ... Corner panel support device, 4 ... Square member, 5 ... Strut material, 6 ... Side edge panel support device, 10/30 ... Auxiliary bracket, 11 ... Upper fastener , 14A / 14B: lower fastener, 15A / 15B: panel lower bracket, 16A / 16B: panel upper bracket, 31A / 31B: middle fastener, 32A / 32B: panel side edge bracket, P: panel

Claims (5)

Panels that are arranged adjacent to the outer wall of the building in the vertical and horizontal directions are placed at corner intersections where the corners of the panels meet, and are supported by corner panel support devices that connect the panels and structural supports In the support structure of the outer wall panel that is to be
The corner panel support device includes an upper fastener that supports two left and right panels located on the upper side, and a pair of left and right lower fasteners that respectively support two left and right panels located on the lower side, and Panel lower fittings engageable with the upper fastener are attached to lower end corners of the two left and right panels located on the side, and the upper left corners of the left and right two panels located on the lower side are attached to the lower side. A panel upper bracket that can be engaged with the lower fastener is attached,
One of the upper fastener and the panel lower metal fitting has a self-weight receiving support piece having an engagement surface having a substantially arc shape, and the other of the upper fastener and the panel lower metal fitting is fitted with the self-weight receiving support piece, The engagement surface of the weight receiving support piece has an engagement groove having a substantially arc shape, and when the upper end side of the panel is not supported, the panel is tilted around the engagement portion together with the panel lower bracket in a predetermined angle range. It is possible,
The lower fastener has an engaging piece for a panel upper fitting, and is detachable from a corner panel supporting device, and the panel upper fitting has an engaging groove with which the engaging piece is engaged. Characteristic support structure for exterior wall panels. 2. The panel lower metal fitting is a member having a panel fitting groove formed on the outside of the room to be fitted with a corner of the panel, and having an engaging groove on the indoor side capable of engaging with the upper fastener. 3. Exterior wall panel support structure. 2. The panel upper fitting according to claim 1, wherein a panel fitting groove for fitting a corner of the panel is formed on the outdoor side, and an engaging groove engageable with the lower fastener on the indoor side. 3. External wall panel support structure. Along with the corner panel support device, the device further includes a side edge panel support device that supports an intermediate side edge of the panel, and the side edge panel support device includes an intermediate fastener that supports two panels located on the left and right. Along with the panel side edge metal fittings that can be engaged with the intermediate fasteners are attached to the side edges of the panels located on the left and right,
The intermediate fastener has an engagement piece for the panel side edge fitting and is detachable from the side edge panel support device, and the panel side edge fitting is engaged with the engagement piece. The support structure for an outer wall panel according to claim 1, further comprising a groove. It is a panel construction method of a curtain wall having a support structure of an outer wall panel according to any one of claims 1 to 3,
A first step of attaching the panel upper fitting to the upper end corner of the panel and attaching the panel lower fitting to the lower corner of the panel;
A second step of bringing the panel to a wall surface to be mounted and engaging a lower panel metal fitting attached to a lower end corner of the panel with an upper fastener of the corner panel supporting device;
With the upper end side of the panel tilted to the outside of the room, the engagement piece of the lower fastener is engaged with the upper metal fitting of the panel, and after returning the panel to the vertical state, the lower fastener is fastened to the corner panel support device. And a third step of performing panel mounting.

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