JP6097560B2 - Construction method of fire prevention compartment penetration structure - Google Patents

Description

  The present invention relates to a construction method for a fireproof compartment penetration structure.

Conventionally, in a building or the like, when a long body such as a cable or a pipe is disposed in a partition part that defines a fire prevention compartment such as a building wall, a partition wall, a floor, or a ceiling, a through hole is provided in the partition part. It is necessary to provide it. When the elongated body is inserted through the through hole, a gap is generated between the elongated body and the through hole. For this reason, when a fire occurs in one fire prevention section defined by the partition portion, smoke is transmitted to the other fire prevention section of the partition portion through the gap between the elongated body and the through hole. There is a problem that fire spread occurs.
In order to cope with this problem, there has been proposed a fireproof compartment penetration structure that uses a fireproof block filled with a fireproof block in a bag to close the gap between the elongated body and the through hole (Patent Literature). 1).
This fireproof compartment penetration structure is characterized in that the construction is simple because it is obtained by packing the fireproof block in the bag into the gap between the elongated body and the through hole.
However, in the case of the bag-type fireproof block, when air enters the inside of the bag to be used or a piece of fireproof material enters, the surface of the bag-type fireproof block is not flat. There has been a problem that it is not easy to stably stack the fireproof blocks in a multi-stage on top.

  In addition, a fire compartment penetrating portion structure using a fire resistant block or the like has been proposed. Specifically, a fireproof compartment penetration structure using a flexible fireproof block (Patent Document 2), a flexible ceramic fiber blanket is laminated with a soft thermally expandable fireproof sheet, and this laminate is made of synthetic resin Fire-resistant compartment penetration part structure using a fire-proof filler material wrapped with a film (Patent Document 3), Fire-resistant compartment penetration part using a fire-resistant filler material wrapped with a flammable synthetic resin nonwoven fabric A structure (Patent Document 4) has been proposed.

Usually, the cross-sectional shape in the direction perpendicular to the longitudinal direction of the plurality of elongated bodies is complicated. For this reason, a clearance gap is easily generated between the plurality of elongated bodies and the fireproof block.
In the case of a fire-proof compartment penetration structure using the flexible fire-resistant block or the like, the fire-resistant block or the like is flexible, so that it adheres to a long body that is inserted through a through-hole provided in the partition, for example. It is said that the fireproof block or the like can be installed.

On the other hand, there has also been proposed a structure for penetrating a fire compartment having a filling support for receiving the refractory filler filled in the through-hole and a net for receiving the filler installed in the through-hole (patent) Reference 5).
According to this prior art, since the filler receiving net is installed in the through hole, the refractory filler filled in the through hole can be prevented from dropping out of the through hole and falling. Is done.

JP 2008-57647 A JP-A-8-299487 JP 2008-215625 A JP 2002-247735 A JP 2008-99428 A

However, as a result of investigations by the present inventors, it has been found that the conventional fireproof compartment penetration structure has the following problems.
FIG. 25 and FIG. 26 are schematic cross-sectional views for explaining the problems of the fireproof compartment penetration structure investigated by the present inventors.
As shown in FIG. 25, in the case of a floor 30 in which a partition section defining a fireproof section such as a floor and a ceiling of a building is a horizontal section, the flexible hole is formed inside a through hole 10 provided in the floor 30. It is not easy to install a refractory fireproof block 50. This is because when the flexible fireproof block 50 is installed inside the through hole, the flexible fireproof block 50 may be dropped to the lower floor.
In order to prevent an accident in which the flexible fireproof block 50 is dropped to the lower floor, the conventional fireproof compartment penetration structure 501 usually has a through hole inside the through hole 10 as shown in FIG. A cylindrical support frame 60 that matches the outer diameter of the cylindrical support frame 60 is installed, and a net-like support 61 is installed at the bottom of the cylindrical support frame 60.
Since the net-like support body 61 supports the flexible fireproof block 50 installed inside the through-hole 10, it is possible to prevent an accident of dropping the flexible fireproof block 50 to the lower floor. it can.
However, at the actual construction site, there are many through holes 10 provided in the floor 30, and the shape and size of the through holes 10 may not be constant. In this case, it is necessary to install a cylindrical support frame 60, a net-like support 61 and the like having different shapes and sizes for each construction site, and there is a problem that it takes a lot of work.
Also, preparing cylindrical support frame 60, net-like support body 61, etc. having different shapes and sizes will result in pushing up the cost required for construction of fire prevention compartment penetration structure 501, so it is easier and cheaper at the construction site. The appearance of a fireproof compartment penetration that can be constructed is expected.

FIG. 27 is a schematic cross-sectional view for explaining the problem of the fireproof compartment penetration structure studied by the present inventors.
As shown in FIG. 27, in the case of a wall 40 in which a partition defining a fire prevention section such as a wall of a building is a vertical section, the inside of the through hole 10 provided in the wall 40 is flexible. When the refractory block 50 is installed, each flexible refractory block 50 may protrude or dent.
When the flexible fire-resistant block 50 protrudes on one side of the wall 40, pushing the protruding flexible fire-resistant block 50 to the opposite side means that the fire-resistant block 50 It is difficult because it is flexible.
Even if the flexible fireproof block 50 protruding can be pushed to the opposite side, the flexible fireproof block 50 above and below the flexible fireproof block 50 protruding. However, it moves in accordance with the movement of the protruding flexible refractory block 50. For this reason, it is difficult to align all end faces of the flexible fireproof block 50 inside the through hole 10.
Thus, there is a problem that it is not easy to eliminate the state in which each flexible fire-resistant block 50 protrudes or is depressed.

  In addition, in the case of the fire-blocking section penetration structure in which the filler receiving net is installed in the through hole described above, if the filler in the through hole is pressed strongly, the filler receiving net is detached or cut off. There was a problem.

  An object of the present invention is to provide a construction method of a fireproof compartment through-hole structure that is simple to construct and in which thermally expandable fireproof blocks can be evenly installed.

  As a result of intensive studies by the inventor in order to solve the above-described problems, a plurality of gaps are formed between the inside of the through hole and the elongated body with respect to the structure in which the elongated body is inserted through the through hole provided in the partition. When installing the heat-expandable fireproof block, a construction method including a step of installing a heat-expandable fireproof block support inside the through-hole and a step of installing a cross-linking plate on the heat-expandable fireproof block support However, the present invention has been found to meet the object of the present invention, and the present invention has been completed.

That is, the present invention
[1] For a structure in which a long body is inserted through a through hole provided in a section, when installing a plurality of thermally expandable fireproof blocks between the inside of the through hole and the long body, A construction method using a thermally expandable fireproof block support,
The thermally expandable fireproof block support body includes a main body portion, a first support portion protruding in one direction from the main body portion, and a second support portion protruding from the main body portion to the opposite side of the first support portion. And having
(1) Hang the first support portion of the thermally expandable fireproof block support on a section outside the through hole;
(2) installing a cross-linking plate on the second support portion of the thermally expandable fireproof block support;
(3) a step of installing a long body fixing portion of a thermally expandable refractory block support for long body mounting provided with a long body fixing portion and a thermally expandable fireproof block support portion on the long body;
(4) a step of installing a cross-linking plate on the heat-expandable refractory block support part of the heat-expandable refractory block support for attaching the elongated body;
The construction method of the fire prevention division penetration part structure which has at least is provided.

One of the present invention is
[ 2 ] The heat-expandable fireproof block support body includes a first support portion at one end of the main body portion, a second support portion at the other end of the main body portion, and the first support portion and the first support portion. The two support parts are parallel,
All of the plurality of heat-expandable fire block, based on the horizontal direction before Symbol compartment, having said compartment and horizontal end surfaces,
All respective end surfaces of the plurality of heat-expandable fire-block, comprising the steps of installed parallel to the respective surfaces of the partition, the [1] to provides a method of constructing the firestop penetration portion structure according It is.

One of the present invention is
[ 3 ] The thermally expandable fireproof block support part of the thermally expandable fireproof block support for attaching the elongated body is parallel to the second support part of the thermally expandable fireproof block support,
The construction method of the fireproof section penetrating part structure according to the above [1] or [2] , including a step of installing all surfaces of the bridge plate on substantially the same plane.

One of the present invention is
[ 4 ] Construction of the fireproof compartment penetration structure according to any one of [1] to [ 3 ], including a step of inserting a filling auxiliary material into the gap between the elongated body and the thermally expandable fireproof block. A method is provided.

One of the present invention is
[ 5 ] The fire prevention compartment penetration structure according to any one of the above [1] to [ 4 ], including a step of installing the plurality of thermally expandable fireproof blocks inside the through hole from one side of the compartment. The construction method is provided.

One of the present invention is
[ 6 ] The above-mentioned [1] to [ 5 ], wherein the thermally expandable fireproof block includes at least one selected from the group consisting of a thermally expandable fireproof sheet, a noncombustible material, a combustible material, and a packaging material. The construction method of the fire prevention division penetration part structure of this is provided.

One of the present invention is
[ 7 ] The construction method for a fireproof compartment penetration part structure according to [ 6 ] above, wherein the non-combustible material is at least one of an inorganic fiber mat and an inorganic fiber mat in which a thermally expandable resin composition is dispersed. It is.

One of the present invention is
[ 8 ] The above [ 6 ] or [ 7 ], wherein the thermally expandable fireproof block is formed by packaging at least one selected from the group consisting of a thermally expandable fireproof sheet, a noncombustible material and a combustible material with a packaging material. The construction method of the described fire prevention compartment penetration structure is provided.

One of the present invention is
[ 9 ] The construction method of the fireproof compartment penetration part structure according to any one of [ 6 ] to [ 8 ], wherein the packaging material is at least one selected from the group consisting of paper, cloth, and a synthetic resin film. It is to provide.

According to the construction method of the fireproof compartment penetrating structure according to the present invention, a cross-linking plate can be installed inside the through hole using a thermally expandable fireproof block support.
The presence of this cross-linking plate can prevent the thermally expandable fireproof block from protruding from the through-hole, so that the thermally expandable fireproof block can be easily installed. For this reason, according to the construction method of this invention, a fire prevention division penetration part structure can be constructed easily.

  In addition, by using the cross-linked plate, the thermally expandable fireproof blocks can be evenly installed inside the through holes, and each thermally expandable fireproof block can be prevented from protruding or recessed.

  Furthermore, the presence of the bridge plate can prevent the thermally expandable refractory block from falling to the opposite side of the through hole even when the thermally expandable refractory block is strongly pressed when installed inside the through hole. Thus, the thermally expandable fireproof block can be easily arranged and installed in the through hole.

  Moreover, according to the construction method of the fireproof compartment penetration part structure which concerns on this invention, since it can construct from the one side of a division, it can construct easily.

FIG. 1 is a schematic cross-sectional view of an essential part for explaining the relationship between a long body used in the present invention and a through hole formed in a floor. FIG. 2 is a schematic cross-sectional view of an essential part for explaining a structure in which a cross-linking plate is installed inside a through hole formed in a partition using a thermally expandable fireproof block support. FIG. 3 is a schematic perspective view for explaining the structure of the thermally expandable fireproof block support used in the present invention. FIG. 4 is a schematic perspective view for explaining the structure of the cross-linking plate used in the present invention. FIG. 5 is a schematic view illustrating a structure in which the inside of the through hole is observed from a direction perpendicular to the floor surface. FIG. 6 is a schematic cross-sectional view of an essential part for explaining the fireproof compartment penetration structure according to the first embodiment. FIG. 7 is a schematic perspective view illustrating a modification of the thermally expandable fireproof block support used in the present invention. FIG. 8 is a schematic perspective view illustrating a modified example of the cross-linking plate used in the present invention. FIG. 9 is a schematic perspective view for explaining the thermally expandable fireproof block used in the present invention. FIG. 10 is a schematic perspective view for explaining a heat-expandable fireproof block support used for the fireproof compartment penetration structure 2 according to the first embodiment. FIG. 11 is a schematic perspective view for explaining a bridging plate used for the fire prevention compartment penetration structure 2 according to the first embodiment. FIG. 12 is a schematic perspective view for explaining a heat-expandable fireproof block used in the fireproof compartment penetrating portion structure 2 according to the first embodiment. FIG. 13: is a schematic cross section for demonstrating the construction method of the fire prevention division penetration part structure 2 which concerns on Example 1. FIG. FIG. 14 is a schematic cross-sectional view for explaining a construction method of the fire prevention compartment penetration structure 2 according to the first embodiment. FIG. 15 is a schematic cross-sectional view for explaining a construction method of the fire prevention compartment penetration structure 2 according to the first embodiment. FIG. 16 is a schematic view illustrating a structure obtained by observing the fireproof compartment penetration portion structure according to the first embodiment from a direction perpendicular to the floor surface. FIG. 17 is a schematic perspective view for explaining a thermally expandable fireproof block used in Example 3. FIG. FIG. 18 is a schematic perspective view for explaining a thermally expandable fireproof block used in Example 3. FIG. 19 is a schematic perspective view for explaining a heat-expandable fireproof block used in the fireproof compartment penetration structure 6 according to the fifth embodiment. FIG. 20 is a schematic partial perspective view for explaining the structure of the cable rack used in the fifth embodiment. FIG. 21 is a schematic perspective view for explaining the structure of a thermally expandable fireproof block support for attaching a long body. FIG. 22 is a schematic partial perspective view for explaining a process of mounting a thermally expandable fireproof block support for attaching a long body to the cable rack. FIG. 23 is a schematic view showing a structure obtained by observing the fire prevention compartment penetration structure 6 according to Example 5 from a direction perpendicular to the floor surface. FIG. 24 is a schematic view showing a structure obtained by observing the fire prevention compartment penetration structure 6 according to Example 5 from a direction perpendicular to the floor surface. FIG. 25 is a schematic cross-sectional view for explaining the problem of the fireproof compartment penetration structure studied by the present inventors. FIG. 26 is a schematic cross-sectional view for explaining the problem of the fireproof compartment penetration structure studied by the present inventors. FIG. 27 is a schematic cross-sectional view for explaining the problem of the fireproof compartment penetration structure studied by the present inventors.

A first embodiment according to the present invention will be described below with reference to the drawings.
First, the relationship between the elongated body used in the present invention, the sections provided in the building, and the through holes formed in the sections will be described.
FIG. 1 is a schematic cross-sectional view of an essential part for explaining the relationship between a long body used in the present invention and a through hole formed in a compartment.

Examples of the compartment used in the present invention include vertical compartments such as outer walls and inner walls, and horizontal compartments such as floors and ceilings. In the fire prevention compartment penetration part structure 1 which concerns on 1st embodiment, the floor 30 which is a horizontal division is used as a division.
Examples of the floor 30 illustrated in FIG. 1 include concrete, a non-combustible board, and a steel plate.
Examples of the non-combustible board include inorganic fiber boards formed from inorganic fibers, heat-resistant panels, and the like.

  As the inorganic fiber board, for example, a glass wool, rock wool, ceramic wool, gypsum fiber, carbon fiber, stainless steel fiber, slag fiber, silica alumina fiber, alumina fiber, silica fiber, zirconia fiber and other inorganic fibers as a sintering agent, Examples include boards obtained by molding using thermoplastic resins, adhesives, and the like.

Examples of the heat resistant panel include a cement panel and an inorganic ceramic panel.
Examples of the cement-based panel include hard wood piece cement boards, inorganic fiber-containing slate boards, lightweight cellular concrete boards, mortar boards, and precast concrete boards.
Examples of the inorganic ceramic panel include a gypsum board, a calcium silicate board, a calcium carbonate board, a mineral wool board, and a ceramic board.

  Here, as the gypsum board, specifically, a lightweight material such as saw dust or pearlite is mixed into calcined gypsum, and cardboard is formed on both sides. For example, ordinary gypsum board (JIS A6901 compliant: GB-R) is used. ), Decorative gypsum board (JIS A6911 compliant: GB-D), waterproof gypsum board (JIS A6912 compliant: GB-S), reinforced gypsum board (JIS A6913 compliant: GB-F), sound-absorbing gypsum board (JIS A6301 compliant: GB) -P) and the like.

  The material used for the floor 30 may be one kind or two or more kinds.

  Moreover, there is no limitation in the floor 30 used for this invention, What is normally used for a division can be selected suitably, and can be used.

In FIG. 1, a concrete structure floor having a thickness of 20 cm is used as the floor 30.
The floor 30 is formed with a through hole 10 that penetrates the floor 30 in the vertical direction. The through-hole 10 has a shape in which the long body 20 can be inserted.
The through hole 10 illustrated in FIG. 1 is formed in a rectangular shape, and a long body 20 passes through the through hole 10.

As long body 20 used for the present invention, various piping, a cable, etc. can be mentioned, for example.
Examples of the various pipes include water supply / drainage pipes, intake / exhaust pipes, water pipes, gas pipes, air conditioning / heating medium transfer pipes, and the like.
Examples of the cable include a CV cable, a CVD cable in which two single-core cables are bundled, a CVT cable in which three single-core cables are bundled, and other power cables and signal cables.
For example, in the case of a CV cable using cross-linked polyethylene as an insulator and having a nominal cross-sectional area of 250 mm2, the outer diameter of the conductor is about 19 mm, and the thickness of the outer insulator is about 2.5 mm. The sheath thickness is about 1.8 mm, and the diameter of the single wire is about 30 mm.

  The elongate body 20 can be supported by being suspended from the ceiling surface by a suspension bolt or the like, or supported from a wall surface, and can be fixed at a certain position of the through hole 10.

FIG. 2 is a schematic cross-sectional view of an essential part for explaining a structure in which a cross-linking plate is installed inside a through hole formed in a partition using a thermally expandable fireproof block support.
FIG. 3 is a schematic perspective view for explaining the structure of the thermally expandable fireproof block support used in the present invention.
FIG. 4 is a schematic perspective view for explaining the structure of the cross-linking plate used in the present invention.
The heat-expandable fireproof block support 100 protrudes from the main body 101, the first support 102 protruding in one direction from the main body 101, and from the main body 101 to the side opposite to the first support 102. A second support portion 103 is provided.

  An adhesive layer can be provided on a part or all of the surface of the thermally expandable fireproof block support 100. Examples of the method of providing the adhesive layer on the surface of the thermally expandable fireproof block support 100 include, for example, a method of sticking a double-sided adhesive tape to the surface of the thermally expandable fireproof block support 100, and a pressure-sensitive adhesive. The method etc. which apply | coat to the surface of the block support body 100 are mentioned.

The main body 101 of the thermally expandable fireproof block support 100 is installed in contact with the inner surface 11 of the through hole 10.
The first support portion 102 of the thermally expandable fireproof block support 100 is hung on the upper surface of the floor 30.
Moreover, a bridge plate can be installed on the second support portion 103 of the thermally expandable fireproof block support 100.

As shown in FIG. 2, by installing a bridging plate 200 on the second support portion 103 of the thermally expandable fireproof block support 100, a heat expandable fireproof block can be easily installed inside the through hole 10. can do.
Since the thermally expandable fireproof block can be supported by the bridge plate 200, the thermally expandable fireproof block can be prevented from falling.

Moreover, as a raw material of the said heat-expandable fireproof block support body 100 shown by FIG. 3, a nonflammable material, a combustible material, etc. can be mentioned, for example.
Examples of the incombustible material include metals and inorganic materials.

Examples of the metal include one or more of steel, iron, copper, and aluminum. The metal may be an alloy, and the material may contain a metal such as chromium, manganese, nickel, zinc, tin, or the like.
The said alloy can use 1 type, or 2 or more types.

  Examples of the inorganic material include glass and ceramic. The said inorganic material can use 1 type, or 2 or more types.

Examples of the combustible material include a synthetic resin board, a wooden board, cardboard, and cardboard.
Examples of the synthetic resin used in the present invention include polyvinyl chloride resin, polyvinylidene chloride resin, acrylic resin, ABS resin, polyvinylidene fluoride resin, polyethylene resin, polypropylene resin, polyurethane resin, polyethylene terephthalate resin, and the like.
Examples of paper used for the corrugated cardboard and cardboard include kraft paper, Japanese paper, K liner paper, and a release substrate.
The said combustible material can use 1 type, or 2 or more types.

Further, the material of the bridge plate 200 shown in FIG. 4 is the same as that of the above-described thermally expandable fireproof block support 100 described above.
When the non-combustible material is used, the bridge plate 200 is preferably a metal plate. When the combustible material is used, the combustible plate is a synthetic resin plate, a wooden plate, or the like in terms of strength. Is preferred.

FIG. 5 is a schematic view illustrating a structure in which the inside of the through hole is observed from the direction perpendicular to the surface of the floor 30. For convenience of explanation, the cross-linking plate 200 is indicated by a broken line.
By installing the bridge plate 200 on the second support portions 103 and 103 of the heat-expandable fireproof block support body 100, the heat-expandable fireproof block can be easily installed inside the through hole 10.
Since the second support portions 103 and 103 of the thermally expandable fireproof block support 100 support the bridge plate, the bridge plate 200 does not fall.
When the bridge plate 200 is installed on the second support portions 103, 103 of the heat-expandable fireproof block support 100, the heat-expandable fireproof block support 100 is fixed by a fixing means such as an adhesive tape or an adhesive. The bridge plate 200 can be fixed to the second support portions 103 and 103.

FIG. 6 is a schematic cross-sectional view of an essential part for explaining the fireproof compartment penetration structure according to the first embodiment.
The shape of the heat-expandable fireproof block 300 used in the first embodiment according to the present invention is a rectangular parallelepiped.
In addition to the rectangular parallelepiped shape, the heat-expandable fireproof block 300 may have, for example, a polygonal column shape such as a square, a triangle, a hexagon, and a parallelogram.
A plurality of filling aids 600 are inserted in the gap between the elongated body 20 and the thermally expandable fireproof block 300 (not shown).
The gap between the elongated body and the inside of the through hole 10 can be filled without gaps using the thermally expandable fireproof block 300 and the filling auxiliary material 600.

Next, modifications of the thermally expandable fireproof block support used in the present invention will be described.
FIG. 7 is a schematic perspective view illustrating a modification of the thermally expandable fireproof block support used in the present invention.
The heat-expandable refractory block support used in the present invention is not limited to the shape of the heat-expandable refractory block support 100 illustrated in FIG. 3 above. For example, as illustrated in FIG. The shape of the thermally expandable refractory block support 110 having a plurality of portions 111 may be used, and as illustrated in FIG. 7B, the main body 121, the first support 122, and the second support The shape of the heat-expandable fireproof block support 120 having a plurality of portions 123 may be used.

Next, a modified example of the cross-linked plate used in the present invention will be described.
FIG. 8 is a schematic perspective view illustrating a modified example of the cross-linking plate used in the present invention.
The cross-linking plate used in the present invention is not limited to the shape of the cross-linking plate 200 illustrated in FIG. 4. For example, as illustrated in FIG. 8A, protrusions 211, 211, 212, The shape of the bridge plate 210 provided with 212 may be the shape, or the shape of the bridge plate 220 provided with the recessed portions 221 and 222 as illustrated in FIG.

  In the bridging plate 210 provided with the protrusions 211, 211, 212, and 212 at both ends illustrated in FIG. 8A, the portions of the protrusions 211, 211, 212, and 212 each have a U-shaped cross section. By fitting this U-shaped part to the second support portions 103, 103 of the thermally expandable fireproof block support body 100, the second support portions 103, 103 of the thermally expandable fireproof block support body 100 can be easily obtained. 103 can be provided with a bridge plate 210.

Further, by combining two bridging plates 220 and 220 each having the recessed portions 221 and 222 illustrated in FIG. 8B, the bridging plates 220 and 220 are more firmly formed in a cross shape so that the heat-expandable fireproof block support body. The bridge plates 220 and 220 can be installed on the second support portions 103 and 103 of the 100.
In the case of FIG. 8 (b), the depressions 221 and 222 are provided in the respective bridging plates 220 and 220. However, the depression or the bridging plate is bent only on one of the bridging plates to form a depression. It is also possible to use a combination of cross-linked plates that match the depth.
Further, in the case of FIG. 8B, the respective bridging plates 220 and 220 are orthogonal to each other, but can be installed so as to cross each other diagonally.

Next, the thermally expandable fireproof block used in the present invention will be described.
Examples of the thermally expandable fireproof block used in the present invention include those containing a plate-like body.
Examples of the material used for the plate-like body include a thermally expandable refractory material, a noncombustible material, a combustible material, and a packaging material.

Examples of the heat-expandable refractory material include heat-expandable resins containing resin components such as thermosetting foam resins such as epoxy resin, butyl rubber, and urethane resin foam, heat-expandable graphite, phosphorus compounds, and inorganic fillers. A thermally expandable refractory sheet obtained by molding the composition into a thickness of 3 to 20 mm,
An inorganic fiber mat in which a thermally expandable resin composition is dispersed, obtained by repeating an operation of gluing the inorganic fiber in water in which the thermally expandable resin composition is dispersed using inorganic fibers;
Examples of the inorganic fiber mat in which the heat-expandable resin composition is dispersed are obtained by repeating the operation of impregnating the inorganic fiber mat in an organic solvent in which the heat-expandable resin composition is dispersed using the inorganic fiber mat. be able to.
A commercially available product can be appropriately selected for use as the thermally expandable fireproof sheet. As such a commercial product, for example, Fibro (manufactured by Sekisui Chemical Co., Ltd. (registered trademark. Sheet material containing a resin composition containing epoxy resin, rubber, and thermally expandable graphite)), manufactured by Sumitomo 3M Co., Ltd. Fire barrier (sheet material composed of a resin composition containing chloroprene rubber and verculite, expansion coefficient: 3 times, thermal conductivity: 0.20 kcal / m · h · ° C.), medhicut (manufactured by Mitsui Kinzoku Paint Chemical Co., Ltd.) Sheet material comprising a resin composition containing a polyurethane resin and thermally expandable graphite, expansion coefficient: 4 times, thermal conductivity: 0.21 kcal / m · h · ° C.) and the like.

Examples of the incombustible material include inorganic fiber mats, inorganic panels, metal plates, and metal nets.
Examples of the inorganic fiber used in the present invention include glass wool, rock wool, ceramic wool, gypsum fiber, carbon fiber, stainless steel fiber, slag fiber, silica alumina fiber, alumina fiber, silica fiber, and zirconia fiber.
The said inorganic fiber can use 1 type, or 2 or more types.

The inorganic panel can be the same as described in the previous section.
The said inorganic panel can use 1 type, or 2 or more types.

Moreover, as a metal used for the said metal plate, a metal net | network, etc., 1 type, or 2 or more types of steel, iron, copper, aluminum is mentioned, for example. The metal may be an alloy, and the material may contain a metal such as chromium, manganese, nickel, zinc, tin, or the like.
The said alloy can use 1 type, or 2 or more types.

Examples of the combustible material include synthetic resin plates, cardboard, and cardboard.
Examples of the synthetic resin used in the present invention include polyvinyl chloride resin, polyvinylidene chloride resin, acrylic resin, ABS resin, polyvinylidene fluoride resin, polyethylene resin, polypropylene resin, polyurethane resin, polyethylene terephthalate resin, and the like.
Examples of paper used for the corrugated cardboard and cardboard include kraft paper, Japanese paper, K liner paper, and a release substrate.
The said combustible material can use 1 type, or 2 or more types.

Examples of the packaging material include paper, cloth, and synthetic resin film.
The paper is the same as that of the previous corrugated cardboard or cardboard.
As said cloth, a woven fabric, a nonwoven fabric, etc. can be mentioned, for example. Examples of the fiber used for the woven fabric and the nonwoven fabric include vinyl chloride, polyethylene, polypropylene, polyester, nylon, and cellulose fiber.
Examples of the synthetic resin film include films made from polyethylene, polypropylene, polyamide, polyester, nylon, acrylic, vinyl chloride, vinylidene chloride, and the like.
One or two or more of the packaging materials can be used.

Next, specific examples of the thermally expandable fireproof block used in the present invention will be described.
FIG. 9 is a schematic perspective view for explaining the thermally expandable fireproof block used in the present invention.
A heat-expandable fireproof block 310 illustrated in FIG. 9A is a laminate of a heat-expandable fireproof sheet 70 and an inorganic fiber mat 80.
A heat-expandable fireproof block 320 illustrated in FIG. 9B is a laminate in which a heat-expandable fireproof sheet 70 is sandwiched between two inorganic fiber mats 80.

In the case of the thermally expandable fireproof block 310 and the thermally expandable fireproof block 320 shown in FIGS. 9A and 9B, respectively, the thermally expandable fireproof sheet 70 is a plate-like body. And since the said inorganic fiber mat 80 supports the said heat-expandable fireproof sheet 70, high intensity | strength can be exhibited.
In order to increase the strength of the thermally expandable fireproof block 310 and the thermally expandable fireproof block 320, for example, a thick one may be selected as the thermally expandable fireproof sheet 70. The heat-expandable fireproof sheet 70 may be a single sheet or a plurality of thin sheets may be used.
The thickness of the heat-expandable fireproof sheet 70 is preferably in the range of 3 to 50 mm including a case where a plurality of the heat-expandable fireproof sheets 70 are used.
The strength of the thermally expandable fireproof block 310 and the thermally expandable fireproof block 320 can also be increased by using a hard material as the inorganic fiber mat 80.

The heat-expandable fireproof block 330 illustrated in FIG. 9C is composed of an inorganic fiber mat 81 in which a heat-expandable resin composition is dispersed.
In the case of the heat-expandable fireproof block 330, the inorganic fiber mat 81 in which the heat-expandable resin composition is dispersed increases the strength of the heat-expandable fireproof block 330.
In order to increase the strength of the heat-expandable fireproof block 330, for example, a resin component that increases strength when the resin component contained in the heat-expandable resin composition is dispersed in the inorganic fiber mat may be selected. Examples of such a resin component include a thermosetting resin.
The strength of the heat-expandable fireproof block 330 can also be increased by using a hard inorganic fiber mat 81 in which the heat-expandable resin composition is dispersed.

The heat-expandable fireproof block 340 illustrated in FIG. 9D is a laminate of the heat-expandable fireproof sheet 70, the inorganic fiber mat 80, and the synthetic resin plate 82.
The heat-expandable fireproof block 350 illustrated in FIG. 9E is a laminate of the heat-expandable fireproof sheet 70, the inorganic fiber mat 80, and the metal net 83.
The heat-expandable fireproof block 360 illustrated in FIG. 9F is a laminate of the heat-expandable fireproof sheet 70, the inorganic fiber mat 80, and the cardboard 84.

In the case of the heat-expandable fireproof blocks 340 to 360 shown in FIGS. 9D, 9E, and 9F, the synthetic resin plate 82, the metal net 83, and the corrugated cardboard 84 are respectively It is a rigid plate.
By adjusting the thickness according to the strength of the synthetic resin plate 82, the metal net 83, and the corrugated cardboard 84 to be used, the strength of each of the thermally expandable fireproof blocks 340 to 360 can be adjusted.

A thermally expandable fireproof block 370 illustrated in FIG. 9G is obtained by packaging any one of the thermally expandable fireproof blocks 310 to 360 with a packaging material 90.
The strength of the packaging material 90 can be increased by installing strong paper such as cardboard on the bottom surface of the packaging material 90.

Next, the filling auxiliary material used in the present invention will be described.
The filling auxiliary material includes a gap between the elongated body and the thermally expandable fire block used in the fire compartment penetrating structure according to the present invention, a gap between the thermally expandable fire blocks, a thermally expandable fire block and a through hole. Inserted and used.
Specific examples of the filling auxiliary material include a putty material, a rod-shaped thermally expandable resin composition molded body, a bag body in which these inorganic fibers are enclosed in a synthetic resin bag, and the like.
Examples of the putty material include a building sealing material defined by JIS A5758, a gypsum board joint treatment material defined by JIS A6914, and mortar.
The putty material is preferably a putty, caulking, or the like obtained by blending a filler such as chloroprene rubber or silicone with a filler, a flame retardant, and the like.

  Hereinafter, embodiments will be described in detail with reference to the drawings. In addition, this invention is not limited at all by these Examples.

FIG. 10 is a schematic perspective view for explaining a heat-expandable fireproof block support used for the fireproof compartment penetration structure 2 according to the first embodiment.
In the heat-expandable fireproof block support 100 used in Example 1, the vertical length of the main body 101 is 105 mm, and the horizontal length of the first support 102 and the second support 103 is 30 mm. is there.
The thermally expandable refractory block support 100 is made of steel.

FIG. 11 is a schematic perspective view for explaining a bridging plate used for the fire prevention compartment penetration structure 2 according to the first embodiment.
The cross-linked plate 200 used in Example 1 has a thickness of 2 mm, a width of 30 mm, and a length substantially matching the length of the through hole 10.
The bridge plate 200 is made of a synthetic resin.

FIG. 12 is a schematic perspective view for explaining a heat-expandable fireproof block used in the fireproof compartment penetrating portion structure 2 according to the first embodiment.
The heat-expandable fireproof block 370 used in the fireproof compartment penetrating part structure 2 according to the first embodiment includes a heat-expandable fireproof sheet 70 and an inorganic fiber mat 80 laminated.
The heat-expandable fireproof sheet 70 is obtained by molding a heat-expandable resin composition containing butyl rubber, heat-expandable graphite, etc. (registered trademark Fiblock, manufactured by Sekisui Chemical Co., Ltd.), and has a thickness of 4 mm. It is.
The inorganic fiber mat 80 is made of rock wool having a density of 120 kg / m ³ and a thickness of 50 mm.
The heat-expandable fireproof sheet 70 is faced up, the inorganic fiber mat 80 is faced down, and the heat-expandable fireproof sheet 70 and the inorganic fiber mat 80 are wrapped with a packaging material 90 made of a polyester nonwoven fabric, and a commercially available adhesive The packaging material 90 was fixed at.
As the thermally expandable fireproof block 370, four pieces having different depths, widths, and thicknesses were prepared. Specifically, there are the following four types (1) to (4).
(1) 100 mm x 50 mm x 50 mm
(2) 100 mm x 100 mm x 50 mm
(3) 100 mm x 150 mm x 50 mm
(4) 100 mm x 150 mm x 50 mm

FIGS. 13 to 15 are schematic cross-sectional views for explaining a construction method of the fire prevention compartment penetration structure 2 according to the first embodiment.
As shown in FIG. 13, the main body 101 of the thermally expandable refractory block support 100 is brought into contact with the inner surface of the through hole 10, and the first support portion 102 of the thermally expandable refractory block support 100 is placed on the floor 30. Hung on the surface.
By applying an adhesive to the main body portion 101 and the first support portion 102 of the thermally expandable refractory block support 100, the thermally expandable refractory block support 100 can be fixed to the through hole 10.

Next, as shown in FIG. 14, the bridging plate 200 was fixed to the second support portions 103, 103 of the thermally expandable fireproof block support 100 using an adhesive.
In the case of Example 1, although all the said bridge | crosslinking board 200 was installed in parallel, you may install each bridge | crosslinking board 200 so that the said bridge | crosslinking boards may orthogonally cross.
By appropriately selecting the heat-expandable fireproof block support 100, the surfaces of all the cross-linked plates 200 can be installed on substantially the same surface.

Next, as shown in FIG. 15, a plurality of thermally expandable fireproof blocks 370 were installed between the inside of the through hole 10 and the elongated body 20.
Since the heat-expandable fireproof block 370 is supported by the bridge plate 200, a plurality of heat-expandable fireproof blocks 370 can be easily installed between the inside of the through hole 10 and the elongated body 20. it can.
Further, even if the heat-expandable fireproof block 370 is pressed strongly, the bridge plate 200 supports the heat-expandable fireproof block 370, so that no problem occurs.

FIG. 16 is a schematic view illustrating a structure obtained by observing the fireproof compartment penetration portion structure according to the first embodiment from a direction perpendicular to the floor surface.
As shown in FIG. 16, the filling auxiliary material 600 was inserted into the gap between the thermally expandable fireproof block 370 and the long body 20.
The filling auxiliary material 600 used in Example 1 is formed of a bag body in which a thermally expandable resin composition is molded into a rod shape and enclosed in a synthetic resin bag made of polyethylene.
By inserting the filling auxiliary material 600 into the gap between the elongated body 20 and the thermally expandable fireproof block 370, the inside of the through hole 10 can be closed without a gap.

As above-mentioned, the fire prevention division penetration part structure 2 which concerns on Example 1 can be constructed easily.
Further, by using the heat-expandable fireproof block support 100 and the bridge plate 200, the heat-expandable fireproof blocks 370 can be evenly installed in the through holes. It can prevent protruding from the inside of the through-hole 10 to the outside, or being depressed.

  Moreover, according to the construction method of the fire prevention division penetration part structure 2 which concerns on Example 1, since it can construct from one side of a division, it can construct easily.

When the fireproof compartment through-hole structure 2 obtained in Example 1 is exposed to heat such as a fire, the heat-expandable fireproof sheet 70 included in the heat-expandable fireproof block 370 expands to form an expansion residue.
Since the expansion residue closes the inside of the through-hole 10, the fire-proof compartment penetration structure 2 is excellent in fire resistance.

  In the case of Example 1, the case where the floor 30 is a horizontal section used for a floor, a ceiling, or the like has been described as an example. On the other hand, in the case where a vertical section such as an outer wall or an inner wall is used instead of the floor 30, the fireproof section penetrating structure can be obtained from one side of the vertical section by the same procedure. This also applies to the following embodiments.

The second embodiment is a modification of the first embodiment.
Example 2 is the same as Example 1 except that instead of the thermally expandable fireproof block 370 used in Example 1, a thermally expandable fireproof block 380 is used.
FIG. 17 is a schematic perspective view for explaining a thermally expandable fireproof block 380 used in the third embodiment.
As shown in FIG. 17, the heat is 4 mm and contains butyl rubber, thermally expandable graphite, etc. by two inorganic fiber mats 80 made of rock wool having a density of 120 kg / m ³ and a thickness of 50 mm. A heat-expandable fireproof sheet 70 (registered trademark Fiblock, manufactured by Sekisui Chemical Co., Ltd.) obtained by molding the expandable resin composition was laminated.
Next, a laminate composed of the inorganic fiber mat 80, the thermally expandable fireproof sheet 70, and the inorganic fiber mat 80 is packaged with a packaging material 90 made of polyester nonwoven fabric, and the packaging material 90 is fixed with a commercially available adhesive. Thus, a thermally expandable fireproof block 380 was obtained.
Next, as in the case of Example 1, the thermally expandable fireproof block 380 is penetrated through the floor 30 so that the surface with the thermally expandable fireproof sheet 70 is in the horizontal direction with the elongated body 20. It was installed inside the hole 10.
In the case of Example 2, as in the case of Example 1, it is possible to easily obtain the fire prevention compartment penetration structure 3.

The third embodiment is a modification of the first embodiment.
Example 3 is the same as Example 1 except that instead of the thermally expandable fireproof block 370 used in Example 1, a thermally expandable fireproof block 381 is used.
FIG. 18 is a schematic perspective view for explaining the thermally expandable fireproof block 381 used in the third embodiment.
An inorganic fiber mat 81 was obtained by dispersing a heat-expandable resin composition containing butyl rubber, heat-expandable graphite and the like in rock wool. The composition of the heat-expandable resin composition used is the same as that of the heat-expandable fireproof sheet 70 used in Example 1. The rock wool has a density of 120 kg / m ³ and a thickness of 50 mm.
Next, the inorganic fiber mat 81 in which the thermally expandable resin composition is dispersed is packaged with a packaging material 90 made of a polyester nonwoven fabric, and the packaging material 90 is fixed with a commercially available adhesive, and a thermally expandable fireproof block 381 is obtained. Got.
The obtained heat-expandable fireproof block 381 contains the heat-expandable resin composition more evenly than the heat-expandable fireproof block 381 used in Example 1. For this reason, the heat-expandable fireproof block 381 has a property of spreading not only in the vertical direction of the surface of the floor 30 but also in the horizontal direction and the front-rear direction, and thus is suitable for use in the through hole 10 having a complicated shape.

Next, as in the case of Example 1, the thermally expandable fireproof block 381 was installed inside the through hole 10 of the floor 30.
In the case of Example 3, as in the case of Example 1, it is possible to easily obtain the fireproof section penetrating portion structure 4.

The fourth embodiment is a modification of the first embodiment.
Example 4 is the same as Example 1 except that instead of the thermally expandable fireproof block 370 used in Example 1, a thermally expandable fireproof block 382 is used.
FIG. 19 is a schematic perspective view for explaining a heat-expandable fireproof block used in the fireproof compartment penetration structure 6 according to the fifth embodiment.
First, in accordance with the formulation shown in Table 1, the thermally expandable resin foam 85 was divided into A component and B component, and each component was stirred using a planetary stirrer.
Specifically, a urethane resin foam was used as the thermally expandable resin foam. Polyether polyol, which is a curing agent for urethane resin foam, was used as the resin component of component A, and a polyisocyanate compound, which is the main component of urethane resin foam, was used as the resin component of component B.
The ratio of the active hydrogen group (OH) in the polyol compound and the active isocyanate group (NCO) in the polyisocyanate compound (NCO / OH) is obtained by combining the polyisocyanate compound as the main component of the urethane resin foam and the polyether polyol as the curing agent. ) Was adjusted to an equivalent ratio of 1.64: 1.

Next, the viscosities of component A and component B were measured. The viscosity was measured at 25 ° C. using a B-type rotary viscometer (manufactured by Viscotec). The rotational speed of the B-type rotary viscometer at the time of measurement was 10 rpm, and an R5 spindle was used.
The respective viscosities of the obtained A component and B component were added at the ratio of the weight ratio of the A component and B component to obtain the overall viscosity. This value is shown in Table 1.

The A component and the B component were poured into a mold, and the A component and the B component were cured while foaming. The cured product was taken out from the mold to obtain a thermally expandable resin foam 85 made of urethane resin foam.
The heat-expandable fireproof block 382 used in Example 5 is made of a heat-expandable resin foam 85. In Example 5, the thermally expandable fireproof block 382 is a urethane resin foam block.

Next, as in the case of Example 1, the thermally expandable fireproof block 382 was installed inside the through hole 10 of the floor 30.
In the case of the fourth embodiment as well, as in the case of the first embodiment, it is possible to easily obtain the fire prevention section penetrating portion structure 5.

The fifth embodiment is a modification of the first embodiment.
In the case of Example 1, a cable was used as the long body 20. On the other hand, in the case of Example 5, in addition to the long body 20, the point that the cable rack 21 is used as a long body is different.
Another difference is that a thermally expandable refractory block support 500 for attaching a long body is used.

FIG. 20 is a schematic partial perspective view for explaining the structure of the cable rack used in the fifth embodiment.
The cable rack 21 is advantageous in that various pipes, cables, and the like can be installed therein, and the force applied to the various pipes, cables, and the like can be dispersed. Various pipes, cables and the like can be supported by the cable rack or the like.
The cable rack 21 used in Example 5 is formed in a ladder shape from a metal plate material formed by bending a galvanized iron plate or the like, an aluminum extruded material, and the like. It includes at least a large number of cross members 23 that connect the girders at a predetermined interval.
As shown in FIG. 20, the parent beam member 22 of the cable rack 21 used in the fifth embodiment includes protrusions 22a and 22b. The cross section of the main beam member 22 in the longitudinal direction with respect to the longitudinal direction is substantially U-shaped, and the pair of parent beam members 22 and the cross member 23 are formed perpendicular to each other.
Although not specifically illustrated, when the cable rack 21 is used, the cable rack 21 is supported by being suspended from a ceiling surface by a suspension bolt or the like, or supported from a wall surface. Can be fixed in the position.

FIG. 21 is a schematic perspective view for explaining the structure of a thermally expandable fireproof block support for attaching a long body.
FIG. 22 is a schematic partial perspective view for explaining the process of mounting the thermally expandable fireproof block support for attaching the long body to the cable rack.
As shown in FIG. 21, the long-body-attached thermally expandable refractory block support 500 has a support portion 501 and a fitting portion 502.
The elongate body mounting thermally expandable refractory block support 500 is made of steel. In addition, the fitting portion 502 has a shape that is folded back so that the cross section is U-shaped.

  As shown in FIG. 22, the fitting portion 502 of the long-body-attached thermally expandable refractory block support 500 is fitted to the protrusions 22 a and 22 b of the main beam member 22 of the cable rack 21. When these are fitted together, the upper surface of the support portion 501 of the long-body-attached thermally expandable refractory block support 500 is all of the thermally expandable refractory block support 100 described in the case of the first embodiment. It installs so that it may become substantially the same plane as the upper surface of the 2nd support part 103.

By this step, the pair of the heat-expandable fireproof block supports 500 for attaching the long bodies can be fitted into the protrusions 22a and 22b of the main beam member 22 of the cable rack 21, respectively.
In addition, it can be said that the shape of the fitting portion 502 of the thermally expandable fireproof block support 500 for attaching the long body can be appropriately changed in accordance with the shape of the main beam 22 of the cable rack 21 to be used. Not too long.

FIG. 23 and FIG. 24 are schematic views showing a structure in which the fire prevention compartment penetration structure 6 according to Example 5 is observed from the direction perpendicular to the floor surface.
As shown in FIG. 23, a bridge plate 200 is attached to the support portions 501 and 501 of a pair of the thermally expandable refractory block support 500 for attaching the elongated body fitted to the main beam members 22 and 22 of the cable rack 21. Install.
In the case of Example 5, the bridge plate 200 was fixed to the support portions 501 and 501 of the thermally expandable refractory block support 500 for attaching the long body using an adhesive.
In the same manner as in Example 1, the cross-linking plate 200 was fixed to the second support portions 103 and 103 of the thermally expandable fireproof block support 100 using an adhesive.
For convenience of explanation, the bridge plate 200 is shown by a broken line.
In the case of Example 5, each bridge plate 200 is so arranged that the upper surface of the bridge plate 200 to be used is substantially on the same plane.
Was installed.

As shown in FIG. 24, as in the case of Example 1, a plurality of thermally expandable fireproof blocks 370 are installed between the inside of the through hole 10 and the elongated body 20, and then the thermally expandable fireproof. The filling auxiliary material 600 was inserted into the gap between the block 370 and the long body 20 to obtain the fire prevention compartment penetration structure 6 according to Example 5.
Even when the elongate body includes the cable rack 21, it is possible to obtain the fireproof section through portion structure according to the present invention.

The construction method of the fireproof compartment penetration part structure of the present invention can easily impart a fireproof function from one side of the through hole using the above-described thermally expandable fireproof block support and a cross-linked plate. For this reason, the fireproof property of a building etc. can be improved more efficiently.
In particular, the heat-expandable fireproof block support and the bridge plate are relatively small in volume and can be easily transported, and can be flexibly adapted to the size of the through-holes at the construction site. can do.

1,2,3,4,5,6,500,501,502 Fire-resistant compartment penetration structure 10 Through-hole 11 Inner surface of through-hole 20 Long body 30 Floor 40 Wall 50 Fire-resistant block 60 Cylindrical support frame 61 Reticulated support 70 Thermally expandable fireproof sheet 80 Inorganic fiber mat 81 Inorganic fiber mat in which thermally expandable resin composition is dispersed 82 Synthetic resin plate 83 Metal mesh 84 Corrugated cardboard 85 Thermally expandable resin foam 90 Packaging material 100, 110, 120 Thermally expandable refractory block support 101, 111, 121 Main body 102, 112, 122 First support 103, 113, 123 Second support 200 Bridged plate 211, 212 Protruding part 221, 222 Recessed part 300, 310 320, 330, 340, 350, 360, 370, 380, 381, 382 Thermal expansion fireproof block 600 Auxiliary material

Claims (9)

When a plurality of thermally expandable fireproof blocks are installed between the inside of the through hole and the elongated body with respect to the structure in which the elongated body is inserted through the through hole provided in the compartment, A construction method using a fireproof block support,
The thermally expandable fireproof block support body includes a main body portion, a first support portion protruding in one direction from the main body portion, and a second support portion protruding from the main body portion to the opposite side of the first support portion. And having
(1) Hang the first support portion of the thermally expandable fireproof block support on a section outside the through hole;
(2) installing a cross-linking plate on the second support portion of the thermally expandable fireproof block support;
(3) a step of installing a long body fixing portion of a thermally expandable refractory block support for long body mounting provided with a long body fixing portion and a thermally expandable fireproof block support portion on the long body;
(4) a step of installing a cross-linking plate on the heat-expandable refractory block support part of the heat-expandable refractory block support for attaching the elongated body;
The construction method of the fire prevention division penetration part structure which has at least. The thermally expandable refractory block support includes a first support at one end of the main body, a second support at the other end of the main body, and the first support and the second support. The parts are parallel,
All of the plurality of heat-expandable fire block, based on the horizontal direction before Symbol compartment, having said compartment and horizontal end surfaces,
The construction method of the fireproof compartment penetration part structure according to claim 1 , comprising a step of installing all respective end faces of the plurality of thermally expandable fireproof blocks in parallel with the respective surfaces of the compartments. The thermally expandable refractory block support part of the thermally expandable refractory block support for mounting the elongated body is parallel to the second support part of the thermally expandable refractory block support;
The construction method of the fire prevention compartment penetration part structure of Claim 1 or 2 including the process of installing all the surfaces of the said bridge | crosslinking board on substantially the same plane. The construction method of the fireproof compartment penetration part structure in any one of Claims 1-3 including the process of inserting a filling auxiliary material in the clearance gap between the said elongate body and the said thermally expansible fireproof block. The construction method of the fire prevention compartment penetration part structure in any one of Claims 1-4 including the process of installing these thermal expansion fireproof blocks in the inside of the said through-hole from the one side of a division. The fireproof compartment penetration structure according to any one of claims 1 to 5 , wherein the thermally expandable fireproof block includes at least one selected from the group consisting of a thermally expandable fireproof sheet, a noncombustible material, a combustible material, and a packaging material. Construction method. The construction method of the fireproof compartment penetration part structure according to claim 6 , wherein the non-combustible material is at least one of an inorganic fiber mat and an inorganic fiber mat in which a thermally expandable resin composition is dispersed. The fireproof compartment penetration part according to claim 6 or 7 , wherein the thermally expandable fireproof block is formed by packaging at least one selected from the group consisting of a thermally expandable fireproof sheet, a noncombustible material and a combustible material with a packaging material. Construction method of structure. The construction method of a fireproof compartment penetration part structure according to any one of claims 6 to 8 , wherein the packaging material is at least one selected from the group consisting of paper, cloth, and a synthetic resin film.

Images