JPH0627411B2 - Expansion joint - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an expansion joint in which a fireproof and heat resistant protective member is arranged in a gap between opposing building frames.

(Prior art and its problems) Generally, in this type of expansion joint, a cover material is attached to the front and back portions of the gap of the opposing building body via a supporting member to cover the above-mentioned gap, and There is a structure in which a protective member is arranged to prevent rainwater, dust, dust, etc. from entering the joints of the gap.

However, since this protective member is conventionally formed of a material such as synthetic resin such as Styrofoam, synthetic rubber, etc., it is easily melted by high temperature and light heat. It could not be prevented.

(Object of the invention) The present invention eliminates the above-mentioned drawbacks, particularly when a fire or the like from the outside through the gap between the building skeletons, prevents the intrusion of smoke, etc. into the skeleton, and prevents the spread of the building, It is an object of the present invention to provide an expansion joint that can prevent danger.

(Means for Achieving the Purpose) In order to achieve the above-mentioned object, the expansion joint according to the present invention has a support member fixed to the ends of the building skeletons facing each other with a constant gap, and each support member is provided with In an expansion joint equipped with a cover material covering the gap, a flexible protective material having fire resistance and heat resistance is sandwiched between two metal plate members in the gap between the building frames. A protective member is provided, and both ends of the metal plate member are sandwiched and fixed between the support member and the building frame.

(Examples) Hereinafter, embodiments of the present invention will be described with reference to the drawings.

The figure shows an expansion joint, in which both ends of a protection member 2'disposed along the longitudinal direction of the gap S between the building frames 1 and 1 are engaged with the bottom surfaces of the support members 6c and 6c, The support members 6c, 6c are integrally fixed to the skeletons 1, 1 by fastening means such as bolts.

Expansion joint C is the building frame 1, 1
It is provided on the supporting members 6c, 6c, 7c, 7c formed along the longitudinal direction of the inner and outer surface portions of the opposing end portions 1a, 1a therebetween. Then, the support members 6c, 6c, 7c,
7c is formed of a mold material, and spring member engaging portions 9c and 9c are formed on the inner supporting members 6c and 6c. The outer support members 7c, 7c are also fixed to the surface of the end face by fastening means such as bolts, and are made of stainless steel, steel, etc., flameproof and smokeproof material engaging grooves 8c, 8c and springs, respectively. The member engaging portions 9c, 9c are integrally formed.

Next, cover members 10c and 11c are provided on the support members 6c, 6c, 7c and 7c to cover the gap S between the building skeletons 1 and 1 from inside and outside. First, the inner cover member 10c is made of a long metal member, and
Both ends are engaged with spring member engaging portions 9c, 9c provided on c, 6c to be fixed to the spring member 12c attached by screws 13c, and airtight materials are attached to both ends. This ensures that the airtight state is maintained. In the space S between the skeletons 1 and 1 below the spring member 12c, a flexible protective material 2 having fire resistance and heat resistance is provided as a plate member 16 made of stainless steel or steel.
A protective member 2'which is sandwiched between the two is disposed along the longitudinal direction, and both side ends thereof have the supporting member 6c,
It is engaged with the bottom surface of 6c, and is clamped and fixed to the outer surface portions of the building frames 1, 1 at the same time as the support members 6c, 6c by fastening means such as bolts. The protective material 2 is formed by adding a small amount of an organic binder to fine flex bulk fibers and ultra heat resistant alumina fibers, and is excellent in flexibility, fire resistance and heat resistance. In this case, since the protection member 2'can be fixed simultaneously with the support members 6c, 6c, the mounting work is easy. Next, the inner cover member 11c is made of a long metal member, and a plurality of cover material holders 14c are formed on the back surface thereof with a certain gap therebetween. It is attached by engaging the pieces 7d, 7d, and further pressed against the supporting members 7c, 7c in this state, and the cover member holder 14c is attached to the spring member engaging portions 9c, 9c.
The spring members 12d are attached to the support members 7c, 7c by engaging both ends. A flameproof and smokeproof material 15a made of stainless steel, steel, or the like is disposed below the cover material holder 14c, and both ends thereof have the engaging groove 8a.
It is attached to c and 8c.

Since a protection member 2'having excellent fire resistance and heat resistance is disposed in the space S between the building frames 1 and 1, a fire, smoke, etc. from the outside in the space between the building frames from the outside in the event of a fire etc. It is possible to prevent the invasion of the building and the like, prevent the building body from spreading, and prevent the danger to the body.

(Effect of the Invention) Since the protective material itself is rich in fire resistance and heat resistance, but flexible, it is originally troublesome to hold it in the gap between the building frames, but in the present invention, Since such a protective material is sandwiched between two metal plate members, the above-mentioned protective material is sandwiched and fixed between the support member and the building frame by sandwiching both side ends of the metal plate member. It can be securely held between building frames in a stable state. And, by this, in the event of a fire, it is possible to prevent fire, smoke, etc. from entering the building body from the outside through the gaps in the building body, prevent the building body from spreading, and prevent the danger to the body. it can.

[Brief description of drawings]

FIG. 1 is a sectional view showing an expansion joint according to the present invention. Symbol S ... Gap, 1 ... Building body, 2 '... Protecting member, 6c ... Supporting member

Claims (1)

[Claims] 1. An expansion joint in which a supporting member is fixed to end portions of building skeletons which face each other at a constant interval, and a cover material for covering the above-mentioned gap is attached to each supporting member, in the gap of the building skeleton. Is provided with a protective member in which a flexible protective material having fire resistance and heat resistance is sandwiched between two metal plate members, and both side ends of the metal plate member serve as the support member. An expansion joint characterized by being clamped and fixed between it and the building frame.