JP2766246B2 - Fire prevention measures at the section penetration and fire protection measures at the section penetration using the fire prevention measures - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire-prevention measure body for closing a gap of a section penetrating portion formed by a through hole formed in a partition member of a building and a penetrating body penetrating the through hole. And a fire prevention measure method for a section penetration portion using a fire prevention measure body.

[0002]

2. Description of the Related Art In general, a penetrating body such as a water supply / drainage pipe, a distribution pipe, an electric cable, a gas pipe and the like is penetrated through a through hole formed in a partition member of a building such as a wall, a ceiling, a floor and the like. A gap is formed between the penetrating body and the through hole in the section penetrating portion, and fire prevention measures for filling the gap with a refractory material such as cement mortar or the like are required, and are generally widely practiced.

As another fire prevention measure, a mortar containing inorganic fibers such as asbestos and rock wool capable of maintaining fire resistance is used. Backfill wet method to fill the gap between them,
There is a back-filling dry method in which a back plate is temporarily pressed on the back surface of the partition body and a predetermined amount of rock wool is filled in a gap formed between the penetrating body and the through hole.

However, in the backfill wet method using cement mortar, the backfill operation of temporarily pressing the back plate against the back surface of the partition member to uniformly fill the cement mortar is troublesome, and the filler is hardened with time. As a result, cracks and peeling occur, and a gap is formed between the penetrating body and the inner peripheral surface of the through hole and the filler, making it difficult to secure fire resistance performance for a long period of time. In addition, the construction cost may be increased as the construction period is lengthened.

Further, in order to avoid shrinkage due to hardening of cement mortar due to aging, the above-mentioned back-filling wet method in which inorganic fibers such as asbestos and rock wool are mixed in the cement mortar, causes an adverse effect on the environment due to the asbestos to be mixed, and causes Wool is inferior in alkali resistance and it is difficult to secure fire resistance performance for a long time. In addition, these backfill wet construction methods may induce cracks or breakage of the penetrator due to the relative displacement between the partition member and the penetrator due to the vibration of the building, earthquake, temperature change, etc. In some cases, a fall prevention shield plate is attached.

On the other hand, in the backfill dry method by filling with rock wool, it is difficult to uniformly fill a predetermined amount, and since the back plate is removed after filling with rock wool, the building is filled by vibration of a building, an earthquake or the like. There is a problem that rock wool, which is an object, falls and causes a decrease in fire resistance.

As measures against these problems, Japanese Patent Laid-Open Publication No. 7-30137
As shown in FIG. 3 and shown in FIG. 15, an outer peripheral surface 103a of a fire-resistant double-layer pipe 103 serving as a penetrator and an inner circumference of a through-hole 102 formed in a partition member 101 through which the fire-resistant double-layer pipe 103 passes. A cylindrical body 106, which is a fire-preventive body made of non-combustible inorganic heat-insulating fibers and surrounds the outer periphery of the fire-resistant double-layer pipe 103 in a gap formed between the fire-resistant double-layer pipe 103 and the inside of the through-hole 102, is provided. Outer peripheral surface 103 of layer tube 103
A fire prevention measure method has been proposed in which compression is applied by a and the inner peripheral surface 102a of the through-hole 102 and the gap is closed while being interposed.

According to this fire prevention method, backfill work and curing of cement mortar and the like are not required as compared with the backfill wet method, and troublesome dropping is more difficult than the backfill dry method in which rock wool is filled. Work such as omitting the work of installing the prevention shielding plate and the work of filling rock wool can be simplified, and the construction period can be shortened.

[0009]

However, when a through-hole is press-fitted into a through-hole of a cylindrical body serving as a fire-prevention measure body provided in a partition member and piping is performed, the inner peripheral surface of the through-hole is damaged by the through-hole. Therefore, prior to press-fitting of the penetrating body, the inner peripheral surface of the through hole is covered with a band-shaped insertion guide plate and expanded, and after inserting the penetrating body into the through hole, the insertion guide plate is withdrawn. Since measures are taken, it is desired to simplify the work.

Accordingly, an object of the present invention is to omit the use of an insertion guide plate to simplify the work and avoid damage to the inner peripheral surface of the insertion hole. To provide fire protection measures.

[0011]

According to the present invention, there is provided a fire-prevention measure for a section penetrating portion according to the present invention, comprising a through-hole formed in a dividing member of a building and one or more through-holes penetrating the through-hole. A fire-prevention measure for a section penetrating portion that closes a gap formed by a plurality of through-holes, the fire-prevention body having one or more through-holes through which the penetrating body is inserted, and an inner peripheral surface of the through-hole and the through-hole. It has a fire protection body main body made of non-combustible inorganic heat insulating fiber interposed in a compressed state between the outer peripheral surface of the body and a reinforcing layer attached to the inner peripheral surface of the insertion hole. With this configuration, the inner peripheral surface of the insertion hole of the fire prevention measure body is covered and protected by a reinforcing layer, and even when the penetrator is directly pressed into the insertion hole without using the insertion guide plate, the inner peripheral surface of the insertion hole is formed. Surface is stable without damage by penetrator Fire performance can be secured.

According to the present invention, there is provided a method for preventing fire in a section penetrating portion using a fire preventive body according to the present invention, comprising one or more insertion holes through which the penetrating body is inserted, and a non-flammable inorganic heat insulating fiber. A fire-prevention measure body consisting of a fire-prevention measure body composed of: and a reinforcing layer attached to the inner peripheral surface of the insertion hole is fitted into a through-hole formed in the partition member or integrated into the partition member when the partition member is installed. It is characterized in that it can be buried and installed, and then the penetration body can be pressed into the reinforcement layer and penetrated, and according to this configuration, the penetration body is pressed into the insertion hole covered and protected by the reinforcement layer. In this case, it is possible to efficiently perform a fire prevention measure for the section penetration portion without damaging the inner peripheral surface of the insertion hole.

In order to achieve the above-mentioned object, the fire-prevention measure construction method for a section-penetrating part using another fire-prevention measure body according to the present invention is characterized in that one or a plurality of penetrating bodies are penetrated into a penetrating part formed in a partition member to reinforce it. An inner peripheral surface of a through-hole by contacting a plurality of fire-prevention body members including a fire-prevention body main body constituent portion made of a layer constituent portion and a non-combustible inorganic fiber with a reinforcing layer constituent portion on an outer peripheral surface of a penetrator. It is characterized in that it is press-fitted and interposed between the outer peripheral surface of the penetrating body and the fire-prevention measure member is press-fitted and interposed between the inner peripheral surface of the through hole and the outer peripheral surface of the penetrating body. In addition, the fire-prevention measure body member is protected from the penetrating body by the reinforcing layer constituting portion, so that fire-prevention measures at the section penetration portion can be efficiently performed.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing one embodiment of a fire protection device for a section penetrating portion and a method for preventing a fire from a section penetrating portion using a fire protection measure according to the present invention.

FIG. 1 shows a through hole 3 formed in a partition member 2 such as a ceiling, a floor or a wall, for example, in which an inner tube 6b such as a hard vinyl chloride tube is covered with an outer tube 6c such as a fiber-reinforced mortar covering tube. It is a principal part sectional perspective view of the division penetration part 1 which penetrates the penetration body 5 of the refractory double-layer pipe 6, the gas pipe 7, the electric cable 8, etc. which passed.

The partition member 2 is made of, for example, concrete, and one or a plurality of penetrating members such as the fire-resistant double-layer pipe 6, the gas pipe 7, and the electric cable 8 are provided at predetermined positions of the partition member 2. In the embodiment, a rectangular through hole 3 for inserting and piping three through bodies 5 of the fire-resistant double-layer pipe 6, the gas pipe 7, and the electric cable 8 is formed.

A gap formed between the outer peripheral surfaces 6a, 7a, 8a of the fire-resistant double-layer pipe 6, the gas pipe 7, the electric cable 8, and the like, and the inner peripheral surface 3a of the through hole 3 opened in the partition member 2. By interposing the fire-prevention measure body 10 in a closed state, fire-prevention measures of the section penetration part 1 are taken.

Inner peripheral surface 3 of through hole 3 opening in partition member 2
a and a fire protection measure body 10 interposed between the outer peripheral surfaces 6a, 7a, 8a of the fire-resistant double-layer pipe 6, the gas pipe 7, the electric cable 8, and the like.
As shown in the perspective view of FIG. 2, there are a plurality of insertion holes 12 for inserting the through-holes 5 such as the fire-resistant double-layer pipe 6, the gas pipe 7, the electric cable 8, and the like. It comprises a rectangular fire protection body 11 having a hole 12 formed therein and a reinforcing layer 15 provided on the inner peripheral surface of the insertion hole 12.
The inner diameter of the insertion hole 12 is determined according to the outer diameter of each penetrating body.

The material of the fire-prevention measure main body 11 is made of a non-flammable inorganic heat-insulating fiber such as rock wool, slab wool, glass fiber, silica fiber, alumina fiber, ceramic fiber or other ceramic fiber as a main component. The fiber density in the non-attached state shown in FIG. 1 is desirably about 24 to 350 kg / m ³ , preferably 200 to 250 kg / m ³ . Its thickness is 3
Approximately 15 mm, preferably approximately 6 mm, and a compression width of approximately 0-4 mm, preferably approximately 1 mm.

The reinforcing layer 15 adhered to the inner peripheral surface of the insertion hole 12 of the fire protection body 11 is made of an inorganic material such as a glass cloth, a glass net, a carbon fiber net, an aluminum foil net, and an iron foil net. Sheet or net made of organic material, sheet or net made of organic material such as polyfluorinated ethylene fiber, aramid fiber, vinyl resin, polyethylene resin, and organic resin latex Or a coating or the like formed by impregnation, which has lubricity and elasticity, and has a thickness of 0.01 to
About 5 mm, preferably about 0.5 to 1 mm,
0.1 ~ for organic sheets, nets and coatings
A thickness of about 0.5 mm is more desirable.

Furthermore, by mixing, impregnating, or applying a water repellent or a waterproofing agent to the fire protection body 11, it is possible to ensure water resistance.

Next, the fire protection body 10 formed as described above is used.
The method of fire prevention measures for the section penetration using the method will be described.

First, a penetrating body 5 on which the fire-prevention measure body 10 is to be disposed, in this embodiment, three penetrating bodies of the fire-resistant double-layer pipe 6, the gas pipe 7, the electric cable 8, and the penetrating opening to the partition member 2. According to the size of the hole 3, it is cut, for example, as shown by the broken line a in FIG.

The fire protection body 1 cut to a predetermined size.
0 is fitted in a through hole 3 previously opened in the partition member 2 as shown in FIG. At the time of this fitting, the fire protection measure body 10 is covered in a compressed state by a band-shaped insertion guide plate (not shown), and the fire protection measure body 10 is inserted into the through hole 3 in a state of being mounted in a compressed state by the insertion guide plate. Insert
Also, after the insertion, the insertion guide plate is pulled out to remove the through hole 3.
The fire-prevention measure body 10 can be easily installed at a predetermined location.

It is to be noted that the fire-prevention measure body 10 may be bonded and fixed to the inner peripheral face 3a of the through-hole 3 by applying an adhesive in advance to the inner peripheral face 3a of the through-hole 3 or the outer peripheral face 10a of the fire-prevention measure body 10. It is possible.

Next, the inside of each reinforcing layer 15 attached in the form of a sleeve to the inner peripheral surface of each through hole 12 formed in the fire protection body 10 fitted and fixed in the through hole 3 of the partition member 2. Each of the through-holes 5 of the refractory double-layer pipe 6, the gas pipe 7, and the electric cable 8
Is press-fitted, that is, pushed in, as shown in FIG.

The reinforcing layer 15 is expanded by the press-fitting of each penetrating body 5, and the diameter of the reinforcing layer 15 and the fire protection body 1 are increased.
1 is applied by compression between the respective outer peripheral surfaces 6a, 7a, 8a of the refractory double-layer pipe 6, the gas pipe 7, and the electric cable 8 and the inner peripheral surface 3a of the through hole 3; 5 and the outer peripheral surfaces 6a, 7a, 8a of the refractory double-layer pipe 6, the gas pipe 7, the electric cable 8 and the through hole 3 in a state where the gap formed by the inner peripheral surface 3a of the through hole 3 is closed. It is interposed between the peripheral surface 3a. The reinforcing layer 15 attached to the inner peripheral surface of the insertion hole 12 in the form of a sleeve is pressed against and held by the outer peripheral surfaces 6a, 7a, 8a by the resilience of the fire protection body body 11.

When the fire-resistant double-layer pipe 6, gas pipe 7, and electric cable 8 are press-fitted, the inner peripheral surface of each insertion hole 12 is covered and protected by the reinforcing layer 15 having lubricity and elasticity. The inner body of the body 11, particularly the inner peripheral surface of the insertion hole 12, is prevented from being damaged by the penetrating body 5 such as the fire-resistant double-layer pipe 6, the gas pipe 7, the electric cable 8, and the like. Each of the penetrating bodies 5 can be press-fitted into the pipe, and efficient piping work can be performed.

In the above embodiment, the number of the through-holes 5 and the dimensions of the through-holes 3 where the fire-prevention measures body 10 having the plurality of insertion holes 12 and the reinforcing layer 15 as shown in FIG. 2, the same reference numerals are given to portions corresponding to those in FIG. 2 to omit detailed description. However, as shown in a perspective view in FIG. 2
For example, the number of the through-holes 5 and the number of the through-holes 3
It is also possible to cut and use a broken line b in accordance with the size and shape of the above.

The insertion holes 12 correspond to the number of the penetrating members 5.
It is also possible to appropriately change the number to one or another plural number, and to further change the shape of the fire prevention measure body 10 to another shape such as a cylindrical shape corresponding to the shape of the through hole.

Next, a method of preventing fire from penetrating another section using the fire-prevention measure body 10 will be described with reference to a sectional perspective view of a main part shown in FIG.

When the partition member 2, for example, the floor is installed by placing concrete or the like, a fire protection body 10 is previously installed at a position where piping is to be performed on a formwork 9, and the fire protection body 1 is provided.
0 is temporarily fixed to the formwork 9 by using an adhesive, a pin, a fastener or the like so that no 0 floats or moves relative to the formwork 9 when the concrete or the like is cast.

Then, concrete is poured into the formwork 9, and after curing, the formwork 9 is removed to integrally form the partition member 2 and the fire protection body 10. Thereafter, in each of the reinforcing layers 15 attached to the inner peripheral surface of each of the insertion holes 12 formed in the fire protection measure body 10, similarly to the above, each of the fire-resistant double-layer pipes, gas pipes, and electric cable penetrating bodies (not shown). ) Is press-fitted and piped, whereby the reinforcing layer 15 is expanded and the diameter of the reinforcing layer 1 is increased.
5 and the fire protection body 11 are compressed between the outer peripheral surface of each fire-resistant double-layer pipe, gas pipe, and electric cable and the inner peripheral surface 3a of the through-hole 3, and the inner periphery of each through-hole and the through-hole 3 is provided. In a state where the gap formed by the surface is closed, it is interposed between each outer peripheral surface of the refractory double-layer pipe, the gas pipe, and the electric cable and the inner peripheral surface 3a of the through hole 3, and in this compressed state, A penetrator such as a two-layer pipe, a gas pipe, and an electric cable is supported.

In this case, in particular, a water repellent or a waterproofing agent is mixed, impregnated or applied to the fire protection body 11 of the fire protection body 10 to ensure water resistance, and the fire protection body is removed from the moisture of concrete at the time of casting. Preferably, 10 is protected. It is also preferable to take measures to prevent concrete from flowing into the insertion hole 12, for example, to provide a sheet-like lid.

For example, when a partition member such as a wall is formed by a molded plate of calcium carbonate, calcium silicate, or the like, a fire prevention measure 1
0 is temporarily installed, and a partition member is integrally installed by a molded plate or the like so as to surround the fire prevention measure body 10. Thereafter, each reinforcing layer 15 provided in each insertion hole 12 formed in the fire prevention measure body 10 is provided. It is also possible to press-fit each of the penetrating bodies 5 into the inside and pipe them.

According to these fire-prevention measure construction methods, the piping of the penetrating member can be formed immediately after the concrete forming the division member is cured or after the division member is installed by the molded plate or the like, and the fire-prevention measure body 10 can be penetrated. The work of mounting the inner peripheral surface of the hole 3 is omitted, and the work is simplified and the construction period is shortened.

In the embodiment described above, one fire-prevention measure body 10 is interposed between the inner peripheral surface 3a of the through-hole 3 of the partition member 2 and the penetrating body 5, but a plurality of, for example, two fire-prevention measures bodies are provided. By stacking the measure bodies 10 in the direction of penetration of the through-holes 3, a variation in the outer peripheral shape of the penetrating bodies 5 or a joint (not shown) for connecting the penetrating bodies is provided so as to extend into the through-holes 3. Even in such cases, it is possible to improve the fire resistance performance by securing the adherence by deforming the fire protection body 10 following the outer peripheral surface of the penetrating body 5 penetrating the fire protection body 10, and It is also possible to stack a plurality of fire protection units 10 in the direction in which the through-holes 3 pass through a gap.

Next, another embodiment of the fire prevention measure body for the section penetration portion and the method for fire prevention measure for the section penetration portion using the fire prevention measure body according to the present invention will be described with reference to the drawings.

FIG. 6 shows a section through which a penetrating body 5 such as a fire-resistant double-layer pipe 6, a gas pipe 7 and an electric cable 8 penetrates a through hole 3 formed in a section member 2 such as a ceiling, a floor and a wall. FIG. 3 is a perspective view of a cross section of a main part of the penetration portion 1.

The gap formed between the outer peripheral surfaces 6 a, 7 a, 8 a of the fire-resistant double-layer pipe 6, the gas pipe 7, the electric cable 8, etc. and the inner peripheral surface 3 a of the through hole 3 opened in the partition member 2. By interposing the fire-prevention measure body 20 in a closed state, fire-prevention measures of the section penetration portion 1 are taken.

The inner peripheral surface 3 of the through hole 3 opened in the partition member 2
a and a fire protection body 20 interposed between the fire-resistant double-layer pipe 6, the gas pipe 7, and the outer peripheral surfaces 6a, 7a, 8a of the electric cable 8.
As shown in a perspective view in FIG. 7, a cylindrical inner member 22 having an insertion hole 23 for inserting each penetrating body 5 is opened,
A fire protection body 21 having a plurality of inner members 22, a rectangular outer member 24 surrounding the outer periphery of the six inner members 22 in this embodiment, and an inner peripheral surface of the insertion hole 23. It is constituted by a sleeve-shaped reinforcing layer 25.

The material of the inner member 22 has a small amount of binder mainly composed of non-combustible inorganic heat insulating fibers such as rock wool, slab wool, glass fiber, silica fiber, alumina fiber and ceramic fiber such as ceramic fiber. In the non-attached state shown in FIG. 6, the fiber density is about 24 to 350 kg / m ³ , preferably 20 to 350 kg / m ^3.
0 to 250 kg / m ³ is desirable. Its thickness is 3 ~ 15
mm, preferably about 6 mm, and a compression width of about 0 to 4 mm, preferably about 1 mm.

The material of the outer member 24 is the same as that of the inner member 22 described above.
It has a small binder mainly composed of non-flammable inorganic heat insulating fiber as in the above, and has a fiber density of about 80 to 450 kg / m ³ , preferably 300 to ^{3 in an} unmounted state.
50 kg / m ³ is desirable.

Alternatively, the outer member 24 is formed of a non-combustible material such as calcium silicate, cement, gypsum or magnesium carbonate.

The reinforcing layer 25 mounted inside the insertion hole 23 opened in the inner member 22 is made of a sheet-like or net-like material made of an inorganic material such as glass cloth, glass net, or the like, similarly to the reinforcing layer 15. Either a sheet-like or net-like material made of an organic material such as ethylene fluoride fiber or aramid fiber, or a coating or the like formed by applying or impregnating an organic resin-based latex, which has slipperiness and elasticity, The thickness is about 0.01 to 5 mm, preferably about 0.5 to 1 mm, and more preferably about 0.1 to 0.5 mm for organic sheets, nets and coatings.

The inner member 22 and the outer member 24
And the inner member 22
The fire prevention unit main body 21 is formed by integrating the outer member 24 by fitting the outer member 24 to the outer periphery of the main body.

Further, it is also possible to impart water resistance by mixing, impregnating or applying a water repellent or a waterproofing agent to the fire protection body 21.

As shown in the perspective view of FIG. 8, the fire-prevention measure body 20 is made of calcium silicate, cement, gypsum,
An outer member 24 is formed by integrally laminating plate bodies 21a formed of a noncombustible material such as magnesium carbonate,
In addition, it is also possible to form the hole 24b by inserting the inner member 22 into the hole 24b for inserting the inner member. 25 is a reinforcing layer.

Next, the fire protection body 20 formed as described above is used.
The method of fire prevention measures for the section penetration using the method will be described.

First, the penetrating body 5 on which the fire-prevention measure body 20 is to be disposed, in this embodiment, the three penetrating bodies of the fire-resistant double-layer pipe 6, the gas pipe 7, the electric cable 8, and the penetrating opening to the partition member 2 For example, as shown by a broken line b in FIG.

Then, the cut-off fire-prevention measure body 20 is inserted into the partition member 2 as shown in FIG.
Is fitted in the through hole 3 which is opened at the end.

By applying an adhesive in advance to the inner peripheral surface 3a of the through hole 3 or the outer peripheral surface 20a of the fire protection body 20, the fire protection body 20 can be bonded and fixed to the inner peripheral surface 3a of the through hole 3. It is.

Next, as shown in FIG.
A fire-resistant double-layer pipe is provided in each of the sleeve-like reinforcing layers 25 provided in the insertion holes 23 opened in the respective inner members 22 of the fire-prevention measure body 20 fitted and fixed in the through holes 3 of the partition member 2. 6, the gas pipe 7 and the electric cable 8 are press-fitted and inserted into the respective penetrating bodies 5.

With the press-fitting of each penetrating body 5, the reinforcing layer 25 is expanded and the expanded reinforcing layer 25, the inner member 22 and the outer member 24, particularly the inner member 22 are formed of the refractory double-layer pipe 6, the gas pipe 7, A gap is formed between the outer peripheral surfaces 6a, 7a, 8a of the electric cable 8 and the inner peripheral surface 3a of the through hole 3, and is formed by the penetrating body 5 and the inner peripheral surface 3a of the through hole 3. In a closed state, a fire-resistant double-layer pipe 6, a gas pipe 7, an electric cable 8
Are interposed between the outer peripheral surfaces 6 a, 7 a, 8 a and the inner peripheral surface 3 a of the through hole 3.

At the time of press-fitting of each penetrating body 5, each insertion hole 23
Is protected by the lubricating reinforcing layer 25, so that the inner peripheral surface of the fire protection body 21, particularly the inner peripheral surface of the insertion hole 23, is not damaged by the penetrating body 5, and efficient piping work is performed. Becomes possible.

The fire-prevention measure body 20 can be formed by appropriately changing the number of the through-holes 23 to one or another plural number in accordance with the number of the penetrating bodies, or by changing the shape of the fire-prevention measure body 20 to the shape of the through-hole. Correspondingly, other shapes such as cylindrical are also possible.

As described above, when the partition member 2 is installed by casting concrete or the like, the fire-prevention measure body 20 is temporarily fixed to a mold at a predetermined position to be piped, and concrete is cast on the mold. By removing the form after curing, the partition member 2 and the fire protection body 20 can be formed integrally, or when the partition member is further installed by a molded plate or the like, the fire protection body is previously placed at a position where piping should be performed. It is also possible to temporarily install the partitioning member 20 and install it integrally with the partition member using a molded plate or the like so as to surround the fire prevention measure body 20.

When the partition member 2, for example, a concrete floor is installed by casting concrete or the like, if the thickness of the partition member 2 is larger than the thickness of the fire protection body 20, the fire protection is performed as shown in FIG. A noncombustible pipe or a plastic pipe or the like having an outer diameter larger than the outer diameter of the penetrating body is erected above the insertion hole 23 through which the penetrating body of the measure body 20 is inserted. (Not shown)
Concrete is cast on this formwork. Thereby, the partition member 2 and the fire prevention measure body 20 can be integrally installed. At this time, the fire prevention measure body 20 is integrally installed at the lower part in the thickness direction of the partition member 2, so that even when an external load from the upper part of the partition member 2 is applied, the partition member 2 receives the load, It does not affect the fire protection body 20.

In addition, a plurality of, for example, two fire protection measures 20 may be stacked in the direction of penetration of the through-hole 3, or a plurality of fire protection measures 20 may be stacked in the direction of penetration of the through-hole 3 with a gap therebetween. It is possible.

Next, another method for preventing the fire from passing through the compartment using the fire-prevention body 20 will be described with reference to FIG.

FIG. 10 is a sectional view of a main part of the section penetrating portion 1. In the figure, reference numeral 50 denotes a nonflammable non-combustible member formed by a rectangular outer frame plate 51 and an inner frame plate 52 which are slidably fitted to each other. A frame plate, which is inside the outer frame plate 51 and the inner frame plate 5
At the lower part of the inside of the two, fire-prevention measure bodies 20 facing each other are attached with an adhesive or a pin or the like.

Then, the outer frame plate 51 and the inner frame plate 52 are slid and moved to adjust the height L of the frame plate 50 in accordance with the thickness of the partition member 2 to be formed by casting concrete or the like. The outer frame plate 51 and the inner frame plate 52 are fixed relative to each other by a fixing tool such as a screw 53.

Next, the frame plate 50 is temporarily fixed in advance on a form (not shown) at a position where piping is to be performed using an adhesive, a pin, a fastener, or the like.

Then, concrete is poured into this formwork,
By removing the form after curing, the partition member 2 and the fire protection body 20 are integrally formed via the frame plate 50. Thereafter, the penetrating body is press-fitted into each reinforcing layer 25 in the same manner as described above, and piping is performed.

FIG. 11 is a sectional penetration part 1 for explaining a method of preventing fire from another division penetration part using the fire protection body 20.
Is a cross-sectional view of a main part, and reference numeral 55 in the figure denotes a frame plate made of a nonflammable material.

The frame plate 55 is formed integrally with a rectangular side frame plate 56 and an upper frame plate 57. Side frame plate 56
The fire protection body 20 is attached to the lower part of the inside by a glue or a pin or the like. The upper end of the side frame plate 56 is closed by an upper frame plate 57 whose outer periphery projects sideways from the side frame plate 56. A communication hole 58 is opened in 57 corresponding to the insertion hole 23 of the fire protection device 20. The inner diameter of the communication hole 58 is formed larger than the outer diameter of the penetrating body to be inserted.

The frame plate 55 thus formed is temporarily fixed in advance to a position to be piped on a mold (not shown) with a pin, a fastener or the like, and concrete is poured into the mold in the same manner as described above. Then, by removing the form after curing, the partition member 2 and the fire prevention measure body 20 are integrally formed via the frame plate 55. Thereafter, a penetrating body is inserted from the communication hole 58 opened in the upper frame plate 57 and pressed into each reinforcing layer 25 of the fire protection unit 20 to support the penetrating body.

In this case, even when an external load is applied to the upper frame plate 57 from above, the partition member 2 receives the load via the upper frame plate 57 and does not affect the fire protection body 20.

According to the fire protection method shown in FIGS. 9 to 11 described above, it is possible to use the fire protection device 20 having a smaller thickness dimension than the thickness of the partition member 2, thereby reducing the construction cost.

Next, still another embodiment of the fire-prevention measure body for the section penetration portion and the fire-prevention measure construction method for the section penetration portion using the fire-prevention measure body according to the present invention will be described with reference to the drawings.

FIG. 12 is a perspective view of a section penetrating portion 1 in which a penetrating body 5 such as a fire-resistant double-layer pipe 6, a gas pipe 7, and an electric cable 8 passes through a through hole 3 formed in the dividing member 2. Outer peripheral surfaces 6a, 7a, 8a of each penetrator 5 and inner peripheral surface 3 of through hole 3
The fire prevention measure of the section penetration part 1 is taken by interposing the fire prevention measure body 30 in a closed state in a gap generated between the fire prevention measure 30 and the space a.

As shown in the perspective view of FIG. 13A, the fire-prevention measure body 30 has a plurality of insertion holes 32 for inserting the fire-resistant double-layer pipe 6, the gas pipe 7, the electric cable 8 and the like into the through body 5. The fire-prevention measure body 30 is constituted by a rectangular fire-prevention measure body main body 31 having an opening and a reinforcing layer 35 attached to the inner peripheral surface of the insertion hole 32. Along the inner peripheral surface of the reinforcing layer 35 along the outer peripheral surface of the fire-prevention measure main body 31, a plurality of divided surfaces 36 are provided. In the present embodiment, as shown in FIG. And a fire-prevention measure main body constituting portion 31a to form a fire-prevention measure body member 30a.

The fire-prevention measure main body constituting portion 31a is made of non-combustible inorganic heat-insulating fiber such as rock wool and slag wool and has a fiber density of 24-350 kg.
/ M ³ , preferably about 200 to 250 kg / m ³ , and the reinforcing layer constituting portion 35 a
As in the case of No. 5, it is formed of a sheet, a net or a film having a slippery and stretchable property such as a glass cloth.

As shown in FIG. 12, in order to perform fire prevention measures on the section penetrating portion 1, a penetrating body 5 such as a fire-resistant double-layer pipe 6 is piped into a through hole 3 formed in advance in the dividing member 2, The separation surface 36 of the treatment body member 30a is opposed to each other, and each reinforcing layer constituting portion 35a is pressed against each penetrating body 5 and press-fitted into the through hole 3 to easily install.

FIG. 14 shows still another fire-prevention measure body 40 used in the fire-prevention measure construction method according to the present invention. As shown in the perspective view of FIG. Body 41 having an inner member 42 having an insertion hole 43 and an outer member 44 surrounding the outer periphery of the inner member 42.
And the reinforcing layer 45 attached to the inner peripheral surface of the insertion hole 43. The fire-prevention measure body 40 is disposed along the axial direction of the reinforcing layer 45 from the inner peripheral surface of the reinforcing layer 45 as shown by a broken line d. As shown in FIG. 4B, the fire-prevention body member 40a composed of the reinforcing layer constituting portion 45a and the fire-prevention body main body-constituting portion 41a is divided into two parts as shown in FIG. Form.

The inner member 42 is made of a non-flammable inorganic heat insulating fiber such as rock wool as described above.
Its fiber density is about 24-350 kg / m ³ , preferably about 200-250 kg / m ³ , and its thickness is 3
Approximately 15 mm, preferably approximately 6 mm, and a compression width of approximately 0-4 mm, preferably approximately 1 mm. The outer member 44 is formed of the same material as the inner member 42 and has a fiber density of about 80 to 450 kg / m ³ , preferably 300 to 350 kg / m ³ , or a calcium silicate, cement, gypsum, magnesium carbonate, or the like. It is formed of a non-combustible material formed by.

In the same manner as described above, a through-hole such as a fire-resistant double-layer pipe is piped into a through-hole formed in the partition member in advance, the divided surfaces 46 of the respective fire-prevention measure body members 40a are opposed to each other, and each reinforcing layer constituting portion 45a is connected. It is installed in the section penetrating part by pressing into each penetrating body and press-fitting into the through hole.

The fire protection body 41 includes an inner member 42 having a through hole 43, an outer member 44 surrounding the outer periphery of the inner member 42, and a reinforcing layer 4 attached to the inner peripheral surface of the insertion hole 43.
5, a dividing surface 46 extending from the inner peripheral surface of the reinforcing layer 45 to the outer peripheral surface of the fire-prevention body 41 along the axial direction of the reinforcing layer 45 as indicated by a broken line d.
By dividing into two as shown in FIG. 7B, a fire protection member member 40a composed of the reinforcing layer forming portion 45a and the fire protection body main body forming portion 41a is formed.

The inner member 42 is formed of nonflammable inorganic heat insulating fiber such as rock wool as described above.
Its fiber density is about 24-350 kg / m ³ , preferably about 200-250 kg / m ³ , and its thickness is 3
Approximately 15 mm, preferably approximately 6 mm, and a compression width of approximately 0-4 mm, preferably approximately 1 mm. The outer member 44 is formed of the same material as the inner member 42 and has a fiber density of about 80 to 450 kg / m ³ , preferably 300 to 350 kg / m ³ , or a calcium silicate, cement, gypsum, magnesium carbonate, or the like. It is formed of a non-combustible material formed by.

In the same manner as described above, a through-hole such as a fire-resistant double-layer pipe is piped into a through-hole formed in the partition member in advance, the divided surfaces 46 of the respective fire-prevention measure body members 40a are opposed to each other, and the respective reinforcing layer constituting portions 45a are It is installed in the section penetrating part by pressing into each penetrating body and press-fitting into the through hole.

[0081]

According to the fire-prevention measure for the section penetrating part and the fire-prevention method for the section penetrating part using the fire-prevention measure described above, the through-hole formed in the partition member of the building and the penetrating through the through-hole are provided. Since the inner peripheral surface of the through-hole through which the penetrating body of the fire-prevention measure penetrates the gap formed by the body is covered and protected by the reinforcing layer, it is directly inserted into the through-hole without using an insertion guide plate or the like. Even when the penetrating body is press-fitted or a fire protection body is interposed between the penetrating hole and the penetrating body, the inner peripheral surface of the penetrating hole can secure stable fire resistance without being damaged by the penetrating body, and can be efficiently partitioned. The present invention has an effect peculiar to the present invention, such as that a fire prevention measure can be performed for the penetrating portion.

[Brief description of the drawings]

FIG. 1 is a cross-sectional perspective view of a main part of a section penetration part for explaining an embodiment of a fire prevention measure body and a fire prevention measure construction method according to the present invention.

FIG. 2 is a perspective view of the fire prevention measure body.

FIG. 3 is a cross-sectional perspective view of a main part of the section penetration portion.

FIG. 4 is a perspective view of the fire prevention measure body.

FIG. 5 is a cross-sectional perspective view of a main part of the section penetration portion.

FIG. 6 is a sectional perspective view of a main part of a section penetration part for explaining another embodiment of a fire prevention measure body and a fire prevention measure method according to the present invention.

FIG. 7 is a perspective view of the fire prevention measure body.

FIG. 8 is a perspective view of the fire prevention measure body.

FIG. 9 is a cross-sectional view of a main part of a section penetration part for explaining another embodiment of the fire prevention measure method according to the present invention.

FIG. 10 is a cross-sectional view of a main part of a section penetration part for explaining another embodiment of the fire protection method according to the present invention.

FIG. 11 is a cross-sectional view of a main part of a section penetrating part for explaining another embodiment of the fire prevention measure method according to the present invention.

FIG. 12 is a perspective view of a section penetrating portion for explaining still another embodiment of a fire prevention measure body and a fire prevention measure method according to the present invention.

13A and 13B are explanatory views of a fire protection measure body, wherein FIG. 13A is a perspective view of the fire protection measure body, and FIG. 13B is a perspective view of a fire protection measure body member forming the fire protection measure body.

14A and 14B are diagrams illustrating still another embodiment of a fire protection measure body and a fire protection measure construction method according to the present invention, wherein FIG. 14A is a perspective view of the fire protection measure body, and FIG. It is a perspective view of the fire prevention measure body member which performs.

FIG. 15 is an explanatory perspective view of a conventional fire prevention measure method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Section penetration part 2 Section member 3 Through hole 3a Inner peripheral surface 5 Penetration body 10 Fire prevention body 11 Fire prevention body main body 12 Insertion hole 15 Reinforcement layer 20 Fire prevention body 21 Fire prevention body main body 22 Inner member 23 Insert hole 24 Outside member 25 Reinforcement layer 30 Fire protection body 30a Fire protection body member 31 Fire prevention body main body 31a Fire protection body main body constituent part 32 Insertion hole 35 Reinforcement layer 35a Reinforcement layer constituent part 36 Division surface 40 Fire prevention body 40a Fire prevention body member 41 Fire prevention body Body main body 41a Fire protection body main body constituent part 42 Inner member 43 Insertion hole 44 Outer member 45 Reinforcement layer 45a Reinforcement layer constituent part 46 Division surface

Claims (12)

(57) [Claims] 1. A fire-prevention measure body for a section penetrating portion that closes a gap formed by a through hole formed in a partition member of a building and one or more penetrating bodies penetrating the through hole, A non-combustible inorganic heat-insulating fiber having one or more insertion holes through which a penetrating body is inserted and interposed in a compressed state between an inner peripheral surface of the through-hole and an outer peripheral surface of the penetrating body. And a reinforcing layer attached to the inner peripheral surface of the insertion hole of the fire protective body and pressed against the outer peripheral surface of the penetrating body by the elastic force of the fire protective body. Fire protection body at the section penetration. 2. A fire-prevention measure for a section penetrating portion that closes a gap formed by a through hole formed in a partition member of a building and one or more penetrating bodies penetrating the through hole, An inner member made of a non-combustible inorganic heat-insulating fiber having one or more insertion holes through which the penetrating body is inserted, and an outer member made of a non-combustible material surrounding the outer periphery of the inner member are integrally formed. A fire-prevention measure body interposed in a compressed state between the inner peripheral surface of the through-hole and the outer peripheral face of the penetrator; and a fire-prevention measure body attached to the inner peripheral surface of the through-hole of the fire-prevention measure body. And a reinforcing layer pressed against the outer peripheral surface of the penetrating body by the elastic force of the main body. 3. A fire-prevention measure for a section penetrating portion that closes a gap formed by a through hole formed in a partition member of a building and one or more penetrating bodies penetrating the through hole. An inner member made of non-combustible inorganic heat-insulating fiber having one or more insertion holes through which the penetrating body is inserted, and an outer member made of a non-combustible material fitted to the outer periphery of the inner member. A fire-prevention body main body interposed in a compressed state between the inner peripheral surface of the through-hole and the outer peripheral surface of the penetrating body; and a fire-prevention body main body mounted on the inner peripheral surface of the insertion hole of the fire-prevention body main body. And a reinforcing layer pressed against the outer peripheral surface of the penetrating body by a resilient force. 4. A fire-prevention body member divided into a plurality of parts by a division surface that is continuous from an inner peripheral surface of the reinforcement layer to an outer peripheral surface of the fire-prevention body along the axial direction of the reinforcement layer. 3. The fire prevention measure body of the section penetration part according to any one of 3. 5. A gap formed by a through-hole formed in a partition member of a building and one or more through-holes penetrating the through-hole, by using a fire-prevention measure body of the section through-hole. In the fire prevention method of the section through portion to be closed, one or more insertion holes through which the penetrating body is inserted are provided, and the fire prevention device body made of non-combustible inorganic heat insulating fiber and the inner peripheral surface of the insertion hole are provided. A fire prevention measure body of the section penetrating portion comprising the mounted reinforcing layer is fitted into a through hole formed in the partition member, and the penetrating body is pressed into the reinforcing layer to penetrate therethrough. Compression-applied to the fire-prevention measure body by the surface and the inner peripheral surface of the through-hole, and closing the gap by the fire-prevention measure body, wherein the fire-prevention measure body is used. 6. A gap formed by a through-hole formed in a partition member of a building and one or more through-holes penetrating the through-hole, by using a fire-prevention measure body of the section through-hole. In a fire prevention measure method for a section penetrating portion to be closed, one or more insertion holes through which a penetrating body is inserted, an inner member made of non-combustible inorganic heat insulating fiber, and a noncombustible material surrounding the outer periphery of the inner member A fire prevention measure body of a section through section comprising a fire prevention measure body having an outer member made of a reinforcing layer attached to the inner peripheral surface of the insertion hole is fitted into a through hole formed in the partition member, The penetrating body is press-fitted into the reinforcing layer to penetrate, and the outer peripheral surface of the penetrating body and the inner peripheral surface of the through hole are compression-applied to the fire protection body, and the fire protection body forms the gap. Closed fire, fire prevention measures body Fire protection measures for section penetrations. 7. A gap formed by a through-hole formed in a partition member of a building and one or more through-holes penetrating the through-hole is formed by using a fire-prevention measure body of the partition through-hole. In the fire prevention method of the section through portion to be closed, one or more insertion holes through which the penetrating body is inserted are provided, and the fire prevention device body made of non-combustible inorganic heat insulating fiber and the inner peripheral surface of the insertion hole are provided. The fire prevention measure body of the section penetrating part consisting of the attached reinforcing layer is buried and installed integrally in the partition member when the partition member is installed, and the penetrating body is pressed into the reinforcing layer to penetrate therethrough. Compression-applied to the fire-prevention measure body by the outer peripheral surface of the body and the inner peripheral surface of the through-hole, and closes the gap by the fire-prevention measure body; Fire protection measures. 8. A gap formed by a through-hole formed in a partition member of a building and one or more through-holes penetrating the through-hole by using a fire-prevention measure body of the section through-hole. In a fire prevention measure method for a section penetrating portion to be closed, one or more insertion holes through which a penetrating body is inserted, an inner member made of non-combustible inorganic heat insulating fiber, and a noncombustible material surrounding the outer periphery of the inner member A fire prevention measure body of a section penetration part consisting of a fire prevention measure body having an outer member made of a reinforcing layer attached to the inner peripheral surface of the insertion hole is integrally embedded in the partition member when the partition member is installed. The penetrating body is press-fitted into the reinforcing layer to penetrate, the outer peripheral surface of the penetrating body and the inner peripheral surface of the through hole are compressed and applied to the fire protection body, and the gap is formed by the fire protection body. Closing the part, A fire protection method for a section penetration using a fire protection body. 9. A gap formed by a through-hole formed in a partition member of a building and one or more through-holes penetrating the through-hole is formed by using a fire-prevention measure body of the section through-hole. In the fire-prevention measure construction method for a section penetrating part to be closed, one or more penetrating bodies are penetrated into a through hole formed in the dividing member, and one or more penetrating holes for penetrating the penetrating body are provided. A fire-prevention measure body of a section penetrating portion composed of a fire-prevention measure body made of non-combustible inorganic heat-insulating fiber and a reinforcement layer attached to the inner peripheral surface of the insertion hole is provided along the axial direction of the reinforcement layer. A fire protection body member divided into a plurality of reinforcing layer constituent parts and a fire protection body main body constituent part by a dividing surface continuous from an inner circumferential surface to an outer circumferential surface of the fire preventive body main body has a reinforcing layer structure on an outer circumferential surface of the penetrating body. Abut against the outer surface of the penetrating body,
And a fire protection body main body constituting portion is compressed by the inner peripheral surface of the through-hole and the outer peripheral surface of the penetrating body to be interposed in a state in which the gap is closed. Of fire prevention measures for the department. 10. A gap formed by a through-hole formed in a partition member of a building and one or more through-holes penetrating the through-hole by using a fire-prevention measure body of the partition through-hole. In the fire-prevention measure construction method for a section penetrating part to be closed, one or more penetrating bodies are penetrated into a through hole formed in the dividing member, and one or more penetrating holes for penetrating the penetrating body are provided. A fire protection body having an inner member made of non-combustible inorganic heat insulating fiber and an outer member made of a non-combustible material surrounding the outer periphery of the inner member, and a reinforcing layer attached to the inner peripheral surface of the insertion hole. The fire-prevention measure body was divided into a plurality of reinforcement components and a fire-prevention measure body main component by a dividing surface continuous from the inner peripheral surface of the reinforcement layer to the outer peripheral surface of the fire-prevention measure body along the axial direction of the reinforcement layer. The fire prevention measures body member is attached to the outer peripheral surface of the penetrating body. The layered portion is abutted to surround the outer peripheral surface of the penetrating body, and the fire protection body main body constituting portion is compressed by the inner peripheral surface of the through hole and the outer peripheral surface of the penetrating body to close the gap. A fire-prevention method for a section penetration section using a fire-prevention measure body, wherein the fire-prevention measure is used. 11. A plurality of fire prevention measures are stacked in the axial direction of a through-hole formed in a partition member of a building, and are interposed between an inner peripheral surface of the through-hole and an outer peripheral surface of the through-hole. Item 5-1
0. A fire-prevention measure construction method for a section penetration part using the fire-prevention measure body according to any one of 0. 12. A fire prevention measure for a section penetration part using a fire prevention measure body according to claim 11, wherein a plurality of fire prevention measure bodies are stacked with a gap therebetween in the axial direction of a through hole formed in a partition member of a building. Construction method.