JPH0427926Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose of the Invention] (Field of Industrial Application) The present invention relates to a curtain wall mounting device that is installed so that the load can be released in the event of an earthquake, strong wind, etc.

(Prior art) The conventional curtain wall installation structure generally involves inserting anchor bolts protruding from the curtain wall into a connecting plate fixed to a steel structure, and tightening nuts from above through washers. be. In this case, in order to create a structure that allows the curtain wall to displace slightly relative to the steel structure and release the load in the event of an earthquake, strong wind, etc., a sliding member is interposed between the plate and the washers, etc. There was one that allowed displacement of the steel structure due to the slipperiness of the members.

(Problem to be solved by the invention) However, in the conventional configuration described above, if the nut is tightened too strongly, the sliding between the connecting plate and the sliding member becomes poor, making it difficult to displace, and the release of the load becomes insufficient. It ends up.

In view of these circumstances, we installed a U-shaped frame on the wall of the curtain wall, and installed an inverted L-shaped frame on the steel structure.
It has been considered to connect a curtain wall to a steel structure by screwing a letter-shaped connecting plate and passing the connecting plate through a gap inside the frame. in this case,
By setting the relationship between the width of the gap inside the frame and the width of the connecting plate so that a predetermined gap is left on both sides of the connecting plate, the connecting plate and the frame can be moved laterally to each other. It is designed to be relatively movable, allowing the curtain wall to be displaced from side to side in the event of an earthquake or strong winds.

However, in this case, the curtain wall 1 may be attached with the connection plate being shifted to one side of the frame. In such a case, the permissible displacement amount is insufficient on either the left or right side, resulting in insufficient load relief.

The present invention attempts to solve these problems, and therefore, its purpose is to provide a curtain wall mounting device that can reliably release the load in the event of an earthquake, strong wind, etc.

[Structure of the invention] (Means for solving the problem) The curtain wall mounting device of the present invention is for mounting a curtain wall on a steel structure, in which a gate-shaped locking member is implanted in the wall surface of the curtain wall. , the other end of the rectangular plate-like member with the steel frame structure fixed to one end is inserted into the portal space of the gate-shaped locking member, and the gate post of the gate-type locking member and the rectangular plate-like member are connected to each other. A play space is provided between both sides, and a protrusion member that breaks when a predetermined shearing force is applied is provided on the gate-shaped locking member facing toward the play space, and the protrusion member allows the curtain wall and the It is provided with a relative steady rest with a rectangular plate-shaped member.

(Function) When installing the curtain wall, the protruding member positions the rectangular plate member in the center of the inner gate space, and prevents the rectangular plate member from being closer to one side of the inner gate space. can. After installation, in the event of an earthquake, etc., the protruding member will break due to the load received from the strip-shaped plate member, and this will cause the strip-shaped plate member and the portal space to move relative to each other in the lateral direction. becomes possible and the load is released.

(Embodiment) Hereinafter, a first embodiment of the present invention will be described based on FIGS. 1 to 3. A steel beam 11 is a steel structure, and a pedestal 12 is welded to the upper surface of the beam. On the upper surface of this pedestal 12, an L-shaped fitting 13 is attached to the bolt 1.
4 and then welded. A vertically elongated rectangular plate-like member 15 is welded to this L-shaped metal fitting 13 after being tightened with bolts 16. It has an elongated shape.

On the other hand, in FIG. 2, a curtain wall 17 is connected to the steel beam 11, and although not shown, is supported by the steel beam at its lower part. A secondary waterproofing member 18 and a primary waterproofing sealing material 19 are provided between the vertically adjacent curtain walls 17.
is mediated. 20 is a gate-shaped locking member provided on the curtain wall 17 corresponding to the strip-shaped plate member 15, and this gate-type locking member 20 is shown in FIGS. 1 and 3.
As shown in the figure, spacers 22 are attached to both ends of a horizontally long rectangular plate 21, and bolts 2 are attached to both ends.
3 is inserted and tightened to the long nut 24 on the curtain wall 17 side, and the long nut 24
is embedded in the curtain wall 17 while being welded to the substrate 25. Such a gate-shaped member 20
The internal gate space 26 is configured to extend laterally along the wall surface of the curtain wall 17 and penetrate in the vertical direction. Then, the rectangular plate member 15 is penetrated from above into this internal gate space 26, thereby forming the curtain wall 1.
7 is connected to a steel beam 11. In this case, the relationship between the width dimension of the inner gate space 26 and the width dimension of the strip-shaped plate member 15 is determined between the spacer 22 serving as the gate post of the gate-shaped locking member 20 and both sides of the strip-shaped plate member 15. By leaving a predetermined play gap, the rectangular plate member 15 and the portal space 26 are
The curtain wall 11 is configured to be able to move relative to each other in the lateral direction, thereby allowing displacement of the curtain wall 11 in the left-right direction. Then, sliding members (not shown) such as Teflon-treated sheets are pasted on both sides of the strip-shaped plate member 15 to provide sliding resistance between the strip-shaped plate member 15 and the peripheral edge of the intraportal space 26. is made smaller.

On the other hand, reference numeral 27 denotes a pair of protruding members for positioning (relatively resting) the rectangular plate-like member 15 in the center of the portal space 26, and each protruding member 27 is located on both sides of the rectangular plate-like member 15. It is attached to the base plate 25 as shown in FIG. The specific mounting structure is such that a male threaded portion formed on each protruding member 27 is screwed into a threaded hole in the board 25. in this case,
Each protruding member 27 is formed of a relatively low-strength material such as resin, so that the strength of each protruding member 27 is such that the load (shearing force) received from the strip-shaped plate member 15 in the event of an earthquake, etc. It is set so that it will break if it exceeds this limit.

As shown in FIGS. 1 and 2, temporary holding screws 28 and 29 are screwed into the rectangular plate member 15 at the upper and lower sides of the gate-shaped locking member 20. There is. In this way, by inserting the strip plate member 15 into the portal space 26 of the gate locking member 20 in advance on the ground and screwing together the screws 28 and 29, the strip plate member 15 can be used as a curtain wall. If the curtain wall 17 is then lifted up to the mounting position using a crane, the work of inserting the rectangular plate member 15 into the gate space 26 at a high place becomes unnecessary. Also curtain wall 1
It is possible to prevent the strip-shaped plate member 15 from falling off during the installation work in step 7, and the safety of high-place work can be generally improved.

According to the first embodiment described above, since the pair of protruding members 27 are provided on both sides of the strip-shaped plate member 15, the strip-shaped plate member 15 is attached to the protruding member during the installation work. 27, the strip-shaped plate member 15 is positioned at the center of the intra-portal space 26 (relative steady rest), and the strip-shaped plate member 15 is placed on one side of the intra-portal space 26. It is possible to reliably prevent the situation from becoming too close. Moreover, the protruding member 27 is subjected to a load (shearing force) exceeding a predetermined value.
Since the projecting member 27 is formed so as to break when subjected to a load, if an earthquake or the like occurs after installation, the protrusion member 27 will break due to the load received from the strip-shaped plate member 15, thereby causing the protrusion member 27 to break. The rectangular plate-like member 15 and the portal space 26 can move relative to each other in the lateral direction, and the load can be reliably released.

On the other hand, FIG. 4 shows a second embodiment of the present invention, and the difference from the first embodiment is that the gate-shaped locking member 30 for forming the internal portal space 26 is made of one piece. and the protruding member 31 to the gate-shaped locking member 3.
0, and the gate-shaped locking member 30 is located at the point provided at the base plate 2.
5 by welding or the like. Even in the second embodiment configured in this way, the same effects as in the first embodiment can be obtained.

In each of the above embodiments, the protruding members 27, 31 are made of a relatively low-strength material such as resin, so that the protruding members 27, 31 can be broken by the load from the protruding members 27, 31. However, for example, when the protruding member is made of a high-strength material such as metal, the protruding member may be constructed so that it can break from the base by making the base part thinner and reducing the strength of that part. . Further, in each of the above embodiments, the protrusion members 27 and 31 are positioned within the portal space 26, but the strip-shaped plate member 1 positioning can be performed satisfactorily. Further, in the first embodiment, the strip-shaped plate member 1
5 is fixed to the pedestal 12 via the L-shaped metal fitting 13, for example, a rectangular plate-like member may be bent into an L-shape and directly fixed to the pedestal 12 or the steel beam 11.

[Effects of the invention] As is clear from the above explanation, when the present invention is installed, the rectangular plate-like member is positioned in the center of the space inside the portal by the protruding member, so that the rectangular plate-like member is positioned inside the portal. It is possible to prevent the space from being closer to one side of the space. After installation, in the event of an earthquake, etc., the protruding member will break due to the load received from the strip-shaped plate member, and this will cause the strip-shaped plate member and the portal space to move relative to each other in the lateral direction. Since this is possible, the load can be reliably released, which is an excellent effect.

[Brief explanation of the drawing]

Figures 1 to 3 show the first embodiment of the present invention, with Figure 1 being a front view of the main parts, Figure 2 being a vertical side view of the same, and Figure 3 being taken along the line - in Figure 1. FIG. 4 is a cross-sectional view taken along FIG. 3 and is a view corresponding to FIG. 3 showing a second embodiment of the present invention. In the drawing, 11 is a steel beam (steel frame structure), 15 is a rectangular plate member, 17 is a curtain wall, 20
is a gate-shaped locking member, 22 is a spacer (gatepost), 26
27 is a projection member, 30 is a gate-shaped locking member, and 31 is a projection member.

Claims (1)

[Scope of utility model registration request] In a structure in which a curtain wall is attached to a steel frame structure, a gate-shaped locking member is implanted in the wall surface of the curtain wall, and the other end of a strip-shaped plate member having one end fixed to the steel frame structure is attached to the gate-type locking member. A protrusion member that is inserted into the internal space of the gate to provide a play gap between the gate post of the gate-shaped locking member and both sides of the strip-shaped plate member, and breaks when a predetermined shearing force is applied. is provided on the gate-shaped locking member toward the play gap, and the protruding member provides relative steadying between the curtain wall and the strip-shaped plate member.