JPH0721689Y2 - Carter wall mounting structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a curtain wall mounting structure for mounting a curtain wall made of a metal plate, a precast concrete plate material, a glass plate or the like to a building frame of a building. Specifically, one of the upper and lower parts of the curtain wall is fixed to the skeleton, and the guide rails attached to the skeleton in a position along the in-plane direction are slidable in the in-plane direction with the displacement in the out-of-plane direction being restricted. Attach a slider with a groove that fits in the in-plane direction to the other upper and lower parts of the curtain wall, and slide the other upper and lower parts of the curtain wall in the in-plane direction with respect to the frame with the out-of-plane displacement restricted. The present invention relates to a curtain wall mounting structure that is freely mounted.

[Conventional technology]

Curtain walls made of metal or precast concrete are often used as exterior finishing materials for buildings because they allow the exterior wall of the building to be designed separately from the structure and can be manufactured in a factory to maintain high quality. It is what is done. Further, since the curtain wall itself does not bear a stress load, it is most suitable as an exterior finishing material for high-rise and ultra-high-rise buildings. In other words, in a high-rise building which is generally a flexible structure to be an earthquake-resistant structure, it is desired that the main structures such as columns and beams and the upper wall behave separately.

The curtain wall mounting structure described above is a structure that takes the above points into consideration.

That is, by sliding the other upper and lower parts of the curtain wall in the in-plane direction with respect to the skeleton in the event of an earthquake or the like, interlayer displacement that occurs in the in-plane horizontal direction of the curtain wall during an earthquake is absorbed.

Conventionally, such a mounting structure is known in which a slider is mounted on the other upper and lower portions of the curtain wall by bolts or welding.

[Problems to be solved by the invention]

However, the conventional mounting structure described above has the following problems.

If the groove of the slider is largely deviated from the posture along the guide rail, the slider will rub strongly against the guide rail when sliding, even if it cannot fit the guide rail. Sliding of the slider with respect to the guide rail will lack smoothness.

Therefore, in order to smoothly slide the slider with respect to the guide rail and smoothly absorb the interlayer displacement at the time of an earthquake, it is necessary to position the groove of the slider along the guide rail.

However, in the above conventional structure, since the slider is fixed to the lower part of the curtain wall by welding or bolts, it is necessary to strictly adjust the accuracy of the mounting posture before mounting, and the mounting workability is poor. It was

An object of the present invention is to improve workability of attaching a slider.

[Means for solving problems]

The feature of the mounting structure of the curtain wall according to the present invention is that the mounting part of the slider to the other upper and lower parts of the curtain wall is screwed to the other upper and lower part of the curtain wall in a posture along an in-plane direction orthogonal to the guide rail. The point is that it is composed of matching screw parts.

[Action]

In order to simplify the explanation, the other upper and lower parts will be described as the lower part. In the slider, the screw part screwed into the lower part of the curtain wall has a posture along the in-plane direction orthogonal to the guide rail such as the vertical posture. From the above, the slider can be attached to the lower part of the curtain wall by screwing the screw part to the lower part of the curtain wall, and at the same time, the slider can be formed by rotating the slider around the axis in the posture along the in-plane direction. You can change the attitude of the groove. That is, the operation of attaching the slider to the curtain wall by screwing the screw portion on the lower portion of the curtain wall is an attitude adjusting operation of adjusting the groove to the attitude along the guide rail.

Moreover, even if the groove is slightly displaced from the attitude along the guide rail, the slider is screwed and rotated by the contact with the guide rail due to the fitting of the groove to the guide rail, and the attitude of the groove is changed to the guide rail. Since it is corrected to the posture side along with, it is not necessary to strictly adjust the posture.

Moreover, the in-plane position of the groove with respect to the curtain wall can be adjusted by adjusting the screwing amount (screw amount) of the screw part, so the screwing amount can be adjusted according to the vertical position of the curtain wall with respect to the frame, etc. By doing so, regardless of the vertical position adjustment with respect to the body of the curtain wall, etc., the groove is fitted to the guide rail at an appropriate depth without excess or deficiency, and the reliability of regulation for out-of-plane displacement due to insufficient fitting depth And the sliding performance will not be deteriorated due to excessive fitting depth.

[Effect of device]

As a result, according to the present invention, the slider is attached to the curtain wall and the attitude of the slider groove with respect to the guide rail is adjusted by one operation only by screwing the screw portion to the other upper and lower portions of the curtain wall. Since the three operations of adjusting the fitting depth of the groove can be performed all at once and one of the operations can be easily performed, sliding the curtain wall on the other side of the upper and lower parts of the curtain wall due to interlayer displacement during an earthquake is possible. It is possible to smoothly and reliably absorb the interlayer displacement, and to operate the slider while ensuring reliable out-of-plane displacement regulation with respect to the other upper and lower parts of the curtain wall. It can be attached to the upper and lower parts of the curtain wall with good performance.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a cross section of a building in which a curtain wall (W) made of precast concrete is attached using the attachment structure according to the present invention to form an outer wall.

In the figure, (1a) and (1b) are large beams that form the skeleton (F) and are laid across columns (not shown). 1
The three curtain walls (W) have a predetermined width and a height of one floor, and from the bottom, the waist wall part (2), the opening part (3), the eaves back part (4), the rising part ( 5) and a balcony floor (6). A glass plate (3a) is fitted in the opening (3). Also, the waist wall portion (2) and the eaves back portion (4) are finished by spraying tiles, and the outer side surface of the rising portion (5) is set in a mold during precast molding and driven together. Finished with porcelain tiles.

Then, each curtain wall (W) is attached to the skeleton (F) at two locations in the horizontal direction at three locations in the vertical direction, for a total of six locations. Since the two horizontal mounting structures are the same, the three mounting structures will be referred to as an upper part, a middle part, and a lower part for convenience sake, and the mounting structure will be described with reference to FIG.

In the upper part, the projection part (6a) integrally connected to the inner side of the balcony floor part (6) of the curtain wall (W) is placed on the upper flange of the girder (1a) and fixed. There is. In the lower part, the curtain wall (W _L ) on the lower floor fixed to the girder (1b) on the lower floor as described above,
It is mounted slidably in the in-plane horizontal direction via a slide support portion (7). Further, in the middle part, the inner side of the eaves back part (4) of the curtain wall (W) is attached to the girder via an elastic attachment member (8) that allows the curtain wall (W) to be displaced in the out-of-plane direction. It is attached to the lower flange of (1a).

That is, in general, in a building having a flexible structure to make it an earthquake-resistant structure, the upper part of the curtain wall (W) is covered by a frame ( Large beams (1) that compose F)
In addition to being fixed to a), the lower part of the curtain wall (W) is slidably attached in the in-plane horizontal direction to the lower girder (1b) which also constitutes the frame (F).

Then, when wind pressure is applied in the out-of-plane direction of the curtain wall (W), the distance between the fulcrums of the curtain wall (W) is relatively shortened to reduce the deflection thereof, and at the same time, the curtain wall (W) does not flex during the earthquake. When interlayer displacement occurs in the out-of-plane direction, an external force applied to the upper and lower intermediate portions of the curtain wall (W) so that the distance between the fulcrums of the curtain wall (W) becomes relatively long and the deformation angle becomes small. By the elastic mounting member (8) whose allowable displacement amount of the curtain wall (W) changes in the out-of-plane direction, the middle part of the curtain wall (W) is converted into the large beam (1a) that constitutes the frame (F). It is attached.

That is, when the wind pressure is applied, the force applied to the out-of-plane direction of the curtain wall (W) is relatively small, the displacement amount allowed by the elastic mounting member (8) is small, and the distance between the fulcrums of the curtain wall (W) is substantially. It becomes shorter. On the other hand, when an interlayer displacement occurs during an earthquake, the force applied in the out-of-plane direction of the curtain wall (W) is relatively large, and the displacement amount allowed by the elastic mounting member (8) increases, and the distance between the fulcrums of the curtain wall (W) increases. Is substantially longer.

Next, the attachment structure of the curtain wall (W) at three positions in the vertical direction will be further described.

2 to 4 are a plan view and two sectional views showing the mounting structure of the upper portion of the curtain wall (W).

The protruding portion (6a) is formed with holes (Hh) forming left and right adjusting portions at two positions on the left and right. And FIG. 2 and FIG.
As shown in the figure, angle steel (9) is attached to the inner edge of this hole (Hh) over the entire circumference. The angle steel (9) is set in the form and fixed by embedding in the molding of the curtain wall (W). Also, the crossbeam (1
A pair of brackets (10) are welded and fixed to the upper flange of a). A nut (11) is welded to each of the brackets (10). Then, the heads (12a) of the pair of bolts (12), which are screwed to the respective nuts (11) and are oriented in the out-of-plane direction of the curtain wall (W), are provided with the above-mentioned angle steel on the curtain wall (W) side. It is in contact with (9).

That is, by rotating the pair of bolts (12) described above using a tool such as a spanner, the bolts (12) are displaced with respect to the bracket (10), and thereby the bolts (1
By pressing the angle steel (9) with which the head of 2) abuts,
The curtain wall (W) slightly moves back and forth with respect to the large beam (1a). That is, when the curtain wall (W) is attached, the entrance and exit of the curtain wall (W) and the girder (1a) can be finely adjusted.

Further, holes (Hv) forming up-and-down adjusting portions are formed on the left and right sides of the protruding portion (6a) adjacent to the entrance / exit adjusting portion. Then, as shown in FIGS. 2 and 4, a plate (14) having a long nut (13) welded to the lower portion of the hole (Hv).
Are set in a mold and fixed by embedding during molding of the curtain wall (W). A bolt (15) having a hexagonal engaging portion (15a) formed at one end is screwed into the long nut (13). Then, attach the other end of this bolt (15) to the girder (1
The upper flange of a) is brought into contact with the upper surface.

That is, the above-mentioned bolt (15) is attached to its engaging portion (15a).
By engaging and rotating a tool such as a box wrench, the bolt (15) is displaced with respect to the long nut (13), thereby pushing the girder (1a) with which the bolt (15) abuts. The curtain wall (W) slightly moves up and down with respect to the large beam (1a). That is, when the curtain wall (W) is attached, fine adjustment of the vertical position of the curtain wall (W) and the girder (1a) can be performed.

And the large beam (1a) of the curtain wall (W) mentioned above.
After the entrance and exit and the fine adjustment of the vertical position are completed, the upper part of the curtain wall (W) is fixed to the girder (1a) by filling the holes (Hh) and (Hv) with concrete and solidifying them. I am doing it. In FIGS. 1, 3, and 4, (16) is a deck plate used as a formwork for the floor slab, (17) is concrete for the floor slab, and (18) is a floor finishing material.

5 and 6 are a sectional view and a front view, respectively, showing a mounting structure of a lower portion of the curtain wall (W).

As described above, the lower part of the curtain wall (W) is attached to the balcony floor part (6) of the curtain wall (W _L ) on the lower floor via the slide support part (7). The slide support portion (7) is a slide portion (2) provided on the lower end edge of the waist wall portion (2) of the curtain wall (W).
a) and a guide part (6b) provided on the balcony floor part (6) of the curtain wall (W _L ) on the lower floor.

The guide part (6b) is an angle steel (19) fixed by embedding when forming the curtain wall (W _L ) on the lower floor, a plate member (20) welded and fixed to the angle steel (19), and
The guide rail (21) and the like are welded and fixed to the plate member (20) so as to stand upright. Two bolts (22) are preliminarily fixed to the angle steel (19) in an upright manner. Then, the plate member (20) is attached to the bolt (22).
After inserting the long hole facing the out-of-plane direction of the curtain wall (W) formed in the, and making fine adjustment of the entrance and exit of the angle steel (19) and the plate member (20), tightening and welding the nut (23) The plate member (20) is fixed to the angle steel (19) by and.

On the other hand, the slide portion (2a) is fitted with the guide rail (21) of the guide portion (6b) and slides, and the angle steel (25) to which the slider (24) is fixed.
Etc. The angle steel (25) is embedded and fixed during molding of the curtain wall (W). Further, the slider (24) is specifically a bolt having a groove (24a) for sandwiching the guide rail (21) formed in its head, and the screw portion (24b) of the slider (24) has an angle steel (25).
It is screwed onto a long nut (27) that is welded and fixed to.

Similar to the mounting structure of the upper part of the curtain wall (W) described above, the upper part of the curtain wall (W _L ) on the lower floor is also fixed to the beam (1b) on the lower floor. Therefore, as described above, by sliding the slider (24) with respect to the guide rail (21), the lower portion of the curtain wall (W) can be slid in the in-plane horizontal direction with respect to the frame (F). Is configured. That is, the interlayer displacement that occurs in the horizontal direction of the curtain wall (W) in the event of an earthquake is absorbed by the slide support portion (7). Further, the top of the guide rail (21) is covered with tetrafluoroethylene resin (PTFE resin) in order to improve the sliding of the slider (24).

Further, in FIG. 5, (28) is a rubber cushion material, (29) is a backup material, and (30) is a sealing material.

Next, the attachment structure of the intermediate portion of the curtain wall (W) will be described with reference to FIGS. 7 and 8.

As described above, the middle portion of the curtain wall (W) is attached via the elastic attachment member (8) in a state where the curtain wall (W) can be displaced in the out-of-plane direction. Explaining this elastic mounting member (8), a long nut (31) is set on the inner side of the eaves backside (4) of the curtain wall (W) and fixed by embedding it in a mold during molding. is there. Then, the bolt (3
2) sandwich the beam side plate (33) welded and fixed to the lower flange of the large beam (1a) to the two plate members (34
A) and (34b) are fitted.

The spring mechanism (35a) is fitted onto the bolt (32) outside the plate member (34a) outside the beam side plate (33), and the nut (36a) is screwed onto the bolt (32) outside that. It is matched. This plate member (34
a), the spring mechanism (35a), and the nut (36a) work together to counter the positive wind pressure from the outside of the curtain wall (W). The plate member (34a), the positive pressure spring mechanism (35a), and the positive pressure nut (36a).

In addition, the plate member (34
Inside the b), the spring mechanism (35b) is externally fitted to the bolt (32), and inside thereof, the nut (36b).
b) is screwed into the bolt (32). The plate member (34b), the spring mechanism (35b), and the nut (36b)
Cooperate with each other to counteract the negative wind pressure to the outer side of the curtain wall (W). Therefore, the negative pressure plate member (34b), the negative pressure spring mechanism (35b), and , The negative pressure nut (36b).

The positive pressure spring mechanism (35a) and the negative pressure spring mechanism (35b) are
Each of them is configured by stacking two sets of two disc springs stacked in parallel (toward the same direction) as one set, and serially (facing each other) via a washer.

Considering when a positive pressure is applied to the curtain wall (W), the elastic mounting member (8) moves inward (to the left in FIG. 7) together with the curtain wall (W). As a result, the positive pressure plate member (34a) abuts the beam side plate (33), and the positive pressure spring mechanism (35a) sandwiched between the positive pressure plate (34a) and the positive pressure nut (36a). It resists positive pressure by elastic deformation. When a negative pressure is applied to the curtain wall (W), the negative pressure is similarly counteracted by the elastic deformation of the negative pressure spring mechanism (35b).

When installing the curtain wall (W), install the bolt (32) into the curtain wall (W) and fix the long nut (3).
Position the positive pressure nut (36a) so that the curtain wall (W) can move in and out of the frame (F) with a proper amount screwed into 1), and then negative pressure nut (36b). And tighten the spring washer (37b) between the negative pressure spring mechanism (35b) and the spring washer (37) to start positioning. Then, the positive pressure nut (36
a) and bolt (32), negative pressure nut (36b) and bolt (3)
2), the long nut (31) and the bolt (32) are welded together, and the elastic mounting member (8) is attached to the curtain wall (W).
Fixed to. Furthermore, when positive pressure or negative pressure is applied,
To prevent the negative pressure plate member (34b) or the positive pressure plate member (34a) from unintentionally hitting the flange of the girder (1a), place both plate members (34a) and (34b) on the round bar (38). It is fixed by welding.

In FIGS. 1 and 7, (39) is a fireproof coating material lined with a curtain wall (W), (40) is a finishing material for the inner wall, and (41) is a sash member for holding a shoji on the indoor side. , (42) is the ceiling base material made of lightweight steel (LGS), (4)
3) is a ceiling finishing material.

In the above embodiment, the spring mechanism (35a), (35b) forming the elastic mounting member (8) is described as a combination of disc springs, but instead of this, a coil spring, a ring spring, or a plate spring is used. The elastic mounting member (8) may be made of another spring member such as a spring, or various elastic bodies such as synthetic rubber.

In the above embodiment, the curtain wall (W) is fixed to the skeleton (F) in the upper part and is attached to the skeleton (F) in the lower part so as to be slidable in the in-plane horizontal direction. Alternatively, the lower part may be fixed to the frame (F) and the upper part may be attached to the frame (F) slidably in the in-plane horizontal direction. In addition, the fixing structure can be changed as appropriate, and the upper and lower portions of the curtain wall (W) can be slid vertically or diagonally in the plane instead of being slid horizontally in the plane. Good.

Further, in the above embodiment, the curtain wall (W) is made of precast concrete, but the curtain wall may be made of a metal plate made of stainless steel, aluminum or the like, or plastic or special glass. And the like.

[Brief description of drawings]

The drawings show an embodiment of a curtain wall mounting structure according to the present invention. Fig. 1 is a sectional view of a building, Fig. 2 is an enlarged plan view showing the mounting structure of the upper part of the curtain wall, and Fig. 3 is a second view. Fig. 5 is a sectional view taken along the line III, Fig. 5 is an enlarged sectional view showing the mounting structure of the lower portion of the curtain wall, Fig. 6 is a view taken along the line VI-VI in Fig. 5, and Fig. 7 is an intermediate portion of the curtain wall. FIG. 8 is an enlarged sectional view showing the mounting structure, and FIG. 8 is a sectional view taken along the line VIII-VIII in FIG. (W) …… curtain wall, (F) …… framework, (21)
…… Guide rail, (24a) …… groove, (24) …… slider, (24b) …… screw part.

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Takatoshi Mine, Takatoshi Mine 4-27, Honmachi, Higashi-ku, Osaka City, Osaka Prefecture Takenaka Corp. Osaka Head Office (56) References JP-A-59-228548 (JP, A)

Claims (1)

[Scope of utility model registration request] 1. A guide rail (21) fixed to the frame (F) by fixing one of the upper and lower portions of the curtain wall (W) to the frame (F) in an out-of-plane direction. A slider (24) having a groove (24a) that is slidably fitted in the in-plane direction in a state where displacement is restricted is attached to the other upper and lower parts of the curtain wall (W), and the curtain is formed. A structure for mounting a curtain wall in which the other upper and lower portions of the wall (W) are slidably mounted in the in-plane direction with respect to the frame (F) in a displacement regulation direction out of the plane,
A mounting portion of the slider (24) to the other upper and lower portions of the curtain wall (W) is screwed to the other upper and lower portions of the curtain wall (W) in a posture along an in-plane direction orthogonal to the guide rail (21). Curtain wall mounting structure consisting of mating screw parts (24b).