JPS6114342A - Expansion joint - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] The present invention comprises a fire-resistant, heat-resistant, flexible and expandable protective member disposed within the joint between building frames that face each other at a certain interval. Regarding expansion joints.

Generally, in this type of expansion joint, a cover member is attached to the front and back sides of the gap between opposing building frames via support members to cover the gap, and also to cover the gap between the building frames. Some devices are equipped with a protective member to prevent rainwater, dust, debris, etc. from entering. However, since this protective member has conventionally been made of materials such as synthetic resin such as styrofoam or synthetic rubber, it is easily melted by high temperatures, and therefore smoke, etc. can escape from this gap in the event of a fire. It was impossible to prevent the invasion.

The present invention has been made in view of solving the above-mentioned drawbacks, and is particularly designed to prevent flames, smoke, etc. from entering the building frame from the outside through gaps between the building frames in the event of a fire, etc. The purpose is to propose an expansion joint that can prevent the spread of fire to objects and prevent danger to the body.

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

In the figure, the reference numeral 1,1 indicates a building frame, and this building frame 1.1 is arranged facing each other, for example, wall to wall, floor to floor, etc., and the longitudinal sides of the building frame 1.1 are arranged within joints with a certain gap S between them. Protective members 2 are arranged along the direction.

-1- The protection member 2 is made of a flexible and stretchable material that has fire resistance and heat resistance.

That is, this protective member 2 has a fine flare 1. It is made by adding a small amount of organic binder to bulk fiber and super heat-resistant alumina fiber, and is highly flexible and has excellent fire and heat resistance. When installing the protective member 2 in the frame gap S, first, the flexible protective member 2 should be installed in a manner that prevents it from being deformed after installation, as shown in FIGS. 4(a) and (b).
4 As shown here, reinforcing pins 3 are placed at equal intervals inside the
．． 3.3 jar... are buried together, and in order to make installation easier, compressed bands 4.4... are tied in advance around the protective member 2 at regular intervals, and this compressed band 4.
．． 4 to maintain the protective member in a compressed state. Then, after placing the protective member 2 in the gap S between the building frames l and 1, the compression band 4.4 wrapped around the protective member 2 is cut using scissors to protect the Due to its elasticity, the compressed state of the member 2 is released and the member 2 expands.
Thereby, the protection member 2 can be firmly attached to this gap S. In the above case, the building frame l,
1 and both sides of the protective member 2, the fixing state becomes even more reliable.

Next, examples of the components and performance of the protective member 2 and the adhesive are shown in Tables 1 and 2 below.

Table-1 Maximum operating temperature of protective member 1200℃ Low 0.1f3g/cm
'Linear shrinkage rate (1100°Q) 1.2% (1200
℃) 2.0% (800℃) 0.18kcal/m h'
0 Thermal conductivity (1000℃) 0.25kcal/m
h'C (1200℃) 0.33kcal/
m h ”C(,, chemical composition (Al2O,)
50-70% (S 1o2) 50-30% Table-2 Adhesive maximum operating temperature 1400' (:! Specific gravity (paste) 1.8 Chemical component A1□0.:50%S+0
．． :45% The protective member in Table 1 and the adhesive in Table 2 above are just examples, and if the maximum operating temperature changes, the chemical composition and composition of the chemical components will naturally change accordingly. Needless to say.

An expansion joint (A) that covers the gap S from the inside and outside is provided between the building frames 1.1. This expansion joint A is provided on support members 6, 6 and 7 which are fixed along the longitudinal direction of the inner and outer surfaces of the opposing ends 1a, 1a between the building frames 1,1.

The support member 6.6 is formed of a long shape material, and the support member 7 is formed of a short shape material, and one of the support members 6.6 is fixed to the outer surface of the end surface by a fastening means such as a bolt. A water stop plate fitting groove 8.8 and a spring member retaining portion 9.9 are each integrally formed. Further, the other support member 7 is fixed to the inner surface portion of the end face by fastening means such as bolts. The tip end 7 of this support member 7
b has an inverted U-shape, and a sawtooth locking surface 7a is carved on the side surface thereof. Please note that the expansion joint is 1. It may be provided on the inner and outer surfaces of l. Furthermore, the expansion joints may be provided at intervals between the large corners.

Next, the cover member 10.1 is attached to the support members 6.6 and 7.
1 is disposed and covers the gap S between the building frames 1.1 from the inside and outside. First, the outer cover member 10 is made of a long stainless steel material, and has bent engagement edges 17 and 17 on both sides of the cover material holder 14 on both side inclined pieces 14a and 14a.
It is attached by engaging the The cover material holder 14 is a short member fixed to the spring member 12 with screws 13, and a plurality of cover material holders are fixed at a fixed length by engaging both ends of the spring member 12 with the spring member retaining portions 9.9 of the support member 6.6. They are installed at intervals of . Further, below the spring member 12, a water stop plate 15 made of synthetic resin, synthetic rubber, etc., and a flameproof/smokeproof material 16 made of stainless steel, steel, etc. are arranged, respectively. In addition, this water stop plate 15
Both ends of the plate member 16 are fitted into the water stop plate fitting grooves 8.8, and both ends of the plate member 16 are engaged with the bottom surface of the support member 6.6, and the support member 6.6 is attached to the building frame. 1. It is fixed at the same time as it is fixed to the outer surface of 1 by means of fixing means such as bolts. In addition, the engaging edges 1 at both ends of the cover member lO? ,
L? is fitted with airtight material. The above cover member 1
0 is attached to the cover material fixing member 14 that is fixed to the spring member 12 with screws 13, etc., so even if the relative positions of both parts l and 1 change, this cover member 1
0 can react to that displacement. Next, the inner cover member 11 has an engaging protrusion 19 provided on the back surface of the cover member 11 that is fitted into the tip 18 of the support member 7 formed on one of the building frames 1.1. It is attached by this. The engagement protrusion 18 is engaged with a sawtooth engagement surface 20 provided on one side of the distal end portion 18, and is securely fixed without coming off. Airtight members 11b and llb are attached to both sides of the cover member 11, thereby ensuring that the airtight state is maintained. This cover member 11 is a support member 7 provided on one building frame l.
Therefore, even if the relative positions of both parts 1 and (2) change, the cover member 11 can move in response to the displacement.

As mentioned above, according to expansion joint A,
Since it is attached to the gap S between the building frames 1.1 through the supporting members 6.6 and 7, the ends of the building frames 1.1 may be deformed due to vibrations, non-compliance laws, etc. The function will not be impaired. In addition, a protective member 2 is disposed along the longitudinal direction in the gap S between the above-mentioned frame bodies 1.1, and this protective member 2 is made of fine flex bulk fiber and super heat-resistant fiber alumina fiber with a small amount of organic binder. Since it is a flexible material formed by adding Since it is fixed with adhesive, the mounting strength is strong. Furthermore, since it is fire and heat resistant, it is highly effective as a protective wall against smoke and flames in the event of a fire. Furthermore, the flameproof and smokeproof material 16 made of stainless steel, steel, etc. is resistant to melting even under high heat, and can further improve smokeproofing and flameproofing effects.

Next, FIG. 2 shows another example of an expansion joint. In this example, a protective member 2 made of the same material as described above is formed along the longitudinal direction of the gap S between the building frames 1. 2 is arranged twice. An expansion joint B is provided between the building frames 1 and 1 to cover the gap S from the inside and outside. This expansion joint B is located at the opposite end 1a between the building frames 1 and 1.
, a spring member 12a on support members 6a, 6a, 7a, 7a formed along the growth direction of the inner and outer surfaces of 1a,
12a. These supporting members 6a, 6
a, 7a, 7a are formed of stainless steel, molded material, etc., and their base ends are fixed to the inner and outer surfaces of the opposite ends 1a, 1a of this frame 1.1 by fastening means such as bolts. Furthermore, locking portions 15.15.15.15 are formed at the tips of the support members 6a, 6a, 7a, and 7a.

Next, cover members 10a, lla are arranged on the support members 6a, 6a, 7a, 7a, and cover the gap S between the building frames 1, 1 from the inside and outside. That is, the cover members 10a, lla are made of elongated metal members, and a plurality of spring members 12a, 12a are attached to the locking protrusions 21, 22 provided at the center of the back surface thereof at regular intervals. It is locked and locked in the formed locking receiving part 23.23. In this state, the cover members 10a, lla are pressed into the frame gap S, and the locking receivers 24.24.24.24 at both ends of the spring members 12a, 12a are connected to the support member 8a.
, 6a, 7a, and 7a by engaging with the locking portions 15.15.15.15. A water stop plate 15a made of metal or the like is provided below the spring members 12a, 12a.
, 15a are arranged, and this water stop plate 15a
, both ends of 15a are the support members 6a, 6a, 7a,
7a, and this support member 6a, 6a, 7a
, 7a are fixed to the frame 1, (2) at the same time as fixing means such as bolts. Note that this cover member 10
Since a and lla are attached to the spring members 12a and 12a that are locked to the support members 6a, 6a, 7a and 7a, even if the relative positions of the building frames 1 and 1 change, this The cover members 10a, lla can sufficiently accommodate the displacement.

In addition, since the protective members 2.2 with excellent fire resistance and heat resistance are arranged in a double layer in the gap S between the building frames 1 and 1,
In the event of a fire, it is possible to effectively prevent flames, smoke, etc. from entering the building frame from the outside through gaps between the building frames, prevent the spread of fire in the building, and prevent danger to the body.

Furthermore, FIG. 3 shows another example of an expansion joint, and in this example, both ends of the protective member 2' disposed along the longitudinal direction of the gap S between the building frames 1.1 are An example is shown in which the support member 6C16c is engaged with the bottom surface of the support member 6C16c and fixed to the frame body 1.1 integrally with the support member 6C16C by a fastening means such as a bolt.

Expansion joint C is this building frame 1.1
It is provided on support members 6C16C17c and 7C formed along the longitudinal direction of the inner and outer surfaces of the opposing ends 1a and 1a. And these supporting members 6c, 6c, 7C1
7C is formed of a molded material, the inner support member 6C26C is fixed to the outer surface of the end face by fastening means such as bolts, and the support member 8C16C is formed with spring member engaging portions 9c, 8c. There is. Further, the outer support members 7c, 7c are similarly fixed to the inner surface portion of the end face by means of fixing means such as bolts, and are respectively made of stainless steel, steel, etc., with flame-retardant and smoke-retardant material anchoring grooves 8C.
18C and spring member retaining part 8C18C are 7
□It is formed in one piece.

Next, the cover members 10c and 'llc are arranged on the support member 6C16C17C17C, and the building frame 1
．． 1 and covers the gap S from the inside and outside. First, the inner cover member toe is made of a long metal member, and is attached to a spring member 12c with its both ends engaged with the spring member engaging portions 9c, 9C provided on the support members 6c, 6c. 13
c, and air-tight materials are attached to both ends of the air-tight material, thereby ensuring that the air-tight state is maintained. In the gap S between the frame l and 1 below this spring member 12c, a fireproof and heat resistant flexible and stretchable protective member 2 made of the above-mentioned material is installed as a plate member 16 made of stainless steel, steel, etc. A protective member 2' sandwiched between .16 and 16 is disposed along the longitudinal direction, and both ends of the protective member 2' are engaged with the bottom surfaces of the supporting members 8c and 6c. 1
, l are fixed to the outer surfaces of the parts by means of fixing means such as bolts. In this case, the protective member 2' is the supporting member 6c, θ
Since it can be fixed at the same time as C, installation is easy. Next, the inner cover member 11c is made of a long metal member,
A plurality of cover material holders 14c are attached to the back surface at regular intervals by engaging the both side inclined pieces 14d with the both side bent pieces 7d, 7d of the cover member lie, and further in this state. The above support member 7C17
C, and by engaging both ends of the spring member 12d of the cover material holder 14c with the spring member retaining portion 8C19C, it is attached to the support member 7C17C. Further, a flameproof and smokeproof material 15a made of stainless steel, steel, etc. is disposed below the cover material holder 14c, and both ends thereof are engaged with the engagement grooves 8C28σ.

A protective member 2' with excellent fire resistance and heat resistance is installed in the gap S between the building frames 1.1, so that in the event of a fire, flames and smoke can be prevented from entering the building frame from the outside through the gap between the building frames. etc., can prevent the spread of fire to buildings and prevent danger to the body.

As explained in detail above, the construction expansion joint according to the present invention is an expansion joint in which a cover member is attached to the front and back sides of a building frame facing each other with a certain gap between them via a fixing member for the cover material. In this case, a flexible, expandable, fire-resistant and heat-resistant protective member is installed in the gap between the building bodies, so that smoke, flames, etc. can be prevented from entering through the gap in the event of a fire. can be prevented,
This can stop the spread of fire and prevent danger to the body.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing an example of the expansion joint according to the present invention, FIGS. 2 and 3 are sectional views showing other embodiments of the expansion joint, and FIG. 4(a)
, (b) is a front view of the protection member and a perspective view showing a state in which it is attached between the frames. Symbol A... Expansion joint, 1... Building frame, 2... Protective member, 3... Reinforcement pin, 4...
... Compression band, 6... Support member, 10.11...
Cover section patent applicant: Riken Light Metal Industry Co., Ltd. Representative: Patent attorney Mikio Segawa Figure 4 (b)

Claims (1)

[Claims] In an expansion joint in which a cover member is attached to the front and back sides of building frames that face each other with a certain gap through a cover material fixing member, a flexible and expandable fire-resistant and heat-resistant material is installed in the gap between the building frames. An expansion joint characterized by having a sexual protection member installed.