JPH0552008U - Fireproof structure of expansion joint device - Google Patents

Abstract

(57) [Summary] [Structure] A pair of skeletons 3a, 3 adjoining each other with a space 2 therebetween.
An expansion joint device 1 is provided between b and the expansion joint device 1
A plurality of refractory zones 20 and 21 are provided inside the
An air layer 22 is formed between 0 and 21. [Effect] By providing a plurality of refractory zones, the weight per sheet can be reduced, and transportation and mounting work can be easily performed. Further, by interposing the air layer 22 between the fireproof zones 20 and 21, fireproof performance and sound insulation performance are improved.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a refractory zone structure provided between a pair of building frames adjacent to each other with a space therebetween.

[0002]

[Prior Art]

 2. Description of the Related Art Conventionally, an expansion joint device has been provided across a frame of a pair of buildings adjacent to each other with a space therebetween in order to prevent intrusion of wind and rain from the outside into the space. A refractory zone is provided inside the expansion joint device within the interval. The refractory zone is formed from materials having a relatively high unit volume weight, such as rock wool, ceramic fibers, and organic binders. Therefore, if the distance between the frames increases, the weight of the refractory belt increases accordingly, so it is necessary to carry a heavy refractory belt or to support it with a large force when performing the mounting work. It is desired to improve manageability.

[0003]

[Problems to be solved by the device]

 Therefore, an object of the present invention is to provide a refractory zone structure of an expansion joint device that can be easily and surely attached to a skeleton without lowering the ease of handling the refractory zone even if the interval is large. It is to be.

[0004]

[Means for Solving the Problems]

 According to the present invention, an expansion joint device is provided between a pair of adjacent frames at intervals, and a plurality of refractory zones are provided inwardly of the expansion joint device within the interval, and an air layer is provided between the refractory zones. Is a refractory zone structure of the expansion joint device.

[0005]

According to the present invention, since a plurality of refractory zones are provided inward of the expansion joint device and an air layer is formed between the refractory zones, even if the gap is relatively large, The weight of the refractory belt per piece does not unnecessarily increase, and it is easy to carry and install the refractory belt, improving workability and convenience. Further, since an air layer is formed between the fire zones, fire resistance and sound insulation performance are improved.

[0006]

【Example】

 FIG. 1 is a horizontal sectional view showing the overall construction of an embodiment of the present invention. The expansion joint device 1 is provided between a pair of building bodies 3a and 3b (in which the suffixes a and b are omitted when collectively referred to) of a building that are adjacent to each other with a space 2 therebetween. An attachment member 6 is fixed to an outer surface 5 of each frame 3 by an anchor bolt 7, and an edge member 8 is supported by the attachment member 6 while being pressed against the surface. A cover plate 9 made of, for example, stainless steel is supported on each edge member 8 so as to be movable in the horizontal direction (left-right direction in FIG. 1). The parting members 10 made of aluminum are screwed to both ends of the cover plate 9 in the width direction. The pivot bar 4 is pivotally attached to the center position of the cover plate 9 by a screw 11, and the outward projections 12 provided at both ends in the longitudinal direction of the pivot bar 4 are provided on the inner surface of the inward flange 13 of the edge member 8. Abutting elastically. The edge member 8 is also integrally formed with a mounting piece 16 projecting into the gap 2. The mounting piece 16 has a width of a water blocking plate 17 made of a flexible material such as synthetic rubber. The sandwiching piece 18 sandwiching both ends in the direction is screwed. A plurality of (2 in this embodiment) refractory zones 20 and 21 are provided inside the water stop plate 17, that is, in the lower part of FIG. 1. The refractory zones 20 and 21 are spaced from each other, and an air layer 22 is formed between the refractory zones 20 and 21. These refractory zones 20 and 21 are made of a refractory material such as ceramic fiber or rock wool and have a length of about 2 to 3 m.

FIG. 2 is an enlarged cross-sectional view showing a structure for attaching each of the refractory zones 20 and 21 to the skeleton 3. The widthwise ends of each refractory zone 20, 21 are individually attached by rivets 23, 24 to attachment fittings 25, 26 made of a highly heat-resistant material such as iron or stainless steel. One of the mounting members 25 is formed in a generally L-shape, and has a base portion 27 extending on the surface facing the outside 5 of each body 3 and an end of the base portion 27 close to the space 2 from the inner surface of the body 3. Along the inward portion 28, a bent portion 29 bent and connected to an end portion of the inward portion 28 closer to the inner side (downward in FIG. 2), and the bent portion 29 and the refractory zone 20 are opposed to each other. And a holding section 30. The refractory zone 20 is sandwiched by the bent portion 29 and the pressing portion 30.

Further, the other mounting member 26 is bent from an inwardly facing portion 32 that is spot-welded to the mounting member 25 as indicated by reference numeral 31, and an end portion of the inwardly facing portion 32 that is located inward. The bent portion 33 is formed to have a pressing portion 34 facing the bent portion 33 with the refractory zone 20 in between. The refractory zone 20 is clamped by the bent portion 33 and the pressing portion 34.

As described above, each of the refractory zones 20 and 21 attached to the skeleton 3 through each of the mounting brackets 25 and 26 has the air layer 22 as described above, and therefore, one of the mounting brackets 26 is The facing portion 32 is formed longer inward than the inward facing portion 28 of the other mounting member 25. By providing the plurality of refractory zones 20 and 21, the damaged refractory zones 20 and 21 can be individually replaced, and the economical efficiency is improved. Further, it is not necessary to increase the thickness of each of the refractory belts 20 and 21 regardless of the fireproof performance, for example, the fireproof performance for one hour, and therefore, the weight per sheet is small, and the transportation and mounting work can be performed. It can be done easily. Moreover, since a large weight does not act on each of the mounting brackets 25, 26, and further on the rivets 23, 24, it is not necessary to use a material having a high strength, and the structure for mounting the refractory zone becomes large and large. Do not complicate.

In the above-described embodiment, the mounting members 25 and 26 are fixed to each other by spot welding, but as another embodiment of the present invention, they are connected by rivets 35 as shown in FIG. You may do it.

FIG. 4 is a perspective view showing a mounting member 37 according to still another embodiment of the present invention. The mounting bracket 37 of this embodiment is similar to the mounting bracket 25 of the above-mentioned embodiment, and corresponding parts are designated by the same reference numerals. In the mounting member 37 of this embodiment, a plurality of strip-shaped portions 38 that are continuous between the bent portions 29a and 29b are fixed at intervals in the longitudinal direction. Each strip-shaped portion 38 is formed with a plurality of locking claws 39 that are cut and raised from one surface of the strip-shaped portion 38. The locking claws 39 lock the fire-resistant belt 20 in a state of being pierced, and the fire-resistant belt is large. It can be supported by strength. In this way, both ends of the refractory belt to be supported are connected by the rivets 23 in the same configuration as that of the embodiment shown in FIG. It is possible. Further, in the mounting bracket 37 of this embodiment, the inward portion 28 is formed to be longer inward (downward in FIG. 4), and the base portion 27 is not formed, so that the inward portion 28 is formed inward of the refractory zone 20. It can be used as a metal fitting 26 for the refractory belt 21 mounted on the side.

FIG. 5 is a perspective view of a part of a mounting bracket 41 according to still another embodiment of the present invention. In the embodiment shown in FIGS. 1 to 3 described above, a plurality of refractory zones 20 and 21 are individually attached to each body by using a plurality of attachment fittings 25 and 26. By forming a plurality of bent portions 40a, 40b at different positions every other position as in the example, it is possible to mount a plurality of refractory zones at intervals with one mounting bracket. The bent portions 40a and 40b are not limited to two steps, but may be formed in multiple steps as needed. In addition, the bent portion may be formed by disposing every two or more than two depending on the thickness of the refractory zone.

[0013]

[Effect of the device]

 As described above, according to the present invention, an air layer is formed between a plurality of refractory zones. Therefore, it is possible to improve the refractory performance without unnecessarily increasing the weight of one refractory zone. it can. This makes transportation and installation work easier and faster. Moreover, since the weight of the refractory zone does not increase, the fireproof performance can be improved without increasing the size and complexity of the mounting brackets and the like that support the refractory zone. Moreover, by interposing the air layer between the refractory zones, not only the fireproof performance but also the sound insulation performance can be improved.

[Brief description of drawings]

FIG. 1 is a horizontal sectional view showing the configuration of an expansion joint device 1 according to an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view showing how the refractory zones 20 and 21 are attached to the body.

FIG. 3 is an enlarged cross-sectional view of another embodiment of the present invention.

FIG. 4 is a perspective view showing a mounting bracket 37 according to still another embodiment of the present invention.

FIG. 5 is a perspective view showing a part of still another embodiment of the present invention.

[Explanation of symbols]

 1 Expansion joint device 2 Interval 3 Frame 5 External 20,21 Fire zone 22 Air layer 25,26,37 Mounting bracket

Claims (1)

[Scope of utility model registration request] 1. An expansion joint device is provided between a pair of skeletons adjacent to each other at intervals, and a plurality of refractory zones are independently provided inside the expansion joint device within the interval, and each refractory zone is provided. A refractory zone structure of an expansion joint device, characterized in that an air layer is formed therebetween.