JP7270086B2 - Fire-resistant compartment structure, construction method of fire-resistant compartment structure - Google Patents

Description

TECHNICAL FIELD The present invention relates to a fireproof partition structure capable of preventing the spread of fire to an adjacent space partitioned by partitions such as walls and floors, and a construction method thereof.

When laying long cylindrical objects such as pipes and cables by inserting them into the through-holes of the partitions across multiple spaces partitioned by partitions such as walls, a fire that breaks out in one of the partitions will spread through the partitions. In order to prevent the fire from spreading to the other space, it is necessary to take fire prevention measures to fill the gap between the through hole and the elongated body with fireproof material.

As a conventional fire prevention treatment method, there is a method described in Patent Document 1. In this method, after inserting a plurality of elongated bodies into the holes of the fireproof partition, in the plurality of spaces partitioned by the fireproof partition, the length of the circumference of the elongated bodies is longer than the length of the hole of the fireproof partition. A fireproof treatment comprising a pair of short, split cylinders, a heat-expandable fireproof sheet material attached to the inner surface of the cylinders, and a flange portion formed at one end of the cylinders. Place the parts. Subsequently, after the pair of cylinders are joined so as to center the plurality of elongated bodies in the plurality of spaces, the fire prevention treatment tool is inserted into the hole until the flange portion comes into contact with the wall surface of the fire prevention compartment. According to this fire prevention treatment method, when a fire breaks out, the thermally expandable fireproof material sheet expands when exposed to the fire, and can block the gaps between the elongated bodies and the holes.

JP-A-11-341649

By the way, at least one of the plurality of elongated bodies in the fire prevention treatment method is a multi-layered elongated body having a fluid tube through which fluid flows and a coating material that coats the periphery of the fluid tube. There is As the covering material for the multi-layer elongated body, a member that expands radially outward at a predetermined temperature, such as polyethylene foam, is sometimes used.

Therefore, when a fire breaks out in one of a plurality of spaces partitioned by fireproof partitions, the heat causes the covering material to expand radially outward, expanding the gaps between the plurality of elongated bodies. Then, due to the pressure difference and temperature difference caused by the fire, heat is easily transmitted from one space to the other space through the gap between the enlarged elongated bodies. Therefore, the temperature of the other space rises and the fire spreads faster.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a fire-resistant compartment structure and a method for constructing a fire-resistant compartment structure that can prevent heat from flowing out to the other space and prevent the spread of fire.

In the present invention, a plurality of elongated bodies including at least one multilayer elongated body whose outer periphery is covered with a covering material are inserted through a through-hole formed in a partition that divides a space into a plurality of sections. A fireproof section structure installed in a section penetrating structure, comprising a thermal expansion material that expands due to heat, and a fire prevention measure attached to the section penetrating structure so as to close gaps between the through hole and a plurality of elongated bodies. The fire prevention device and the fire prevention device are configured as separate bodies, and the plurality of long lengths are formed in a region from a predetermined region on one side of the fire prevention device to a predetermined region on the other space side of the fire prevention device in the penetrating direction of the through hole. a long body winding portion configured to bind the body in a bundle so that the binding portion of the covering tightens the covering so as to restrict radial expansion of the covering; A fireproof compartment structure comprising:

In addition, the present invention provides a plurality of elongated bodies including at least one multilayer elongated body in which the perimeter of the elongated body is covered with a covering material in a through hole formed in a dividing body that partitions a space into a plurality of sections. A method for constructing a fire-resistant partition structure installed in a penetrating partition structure, wherein the fire-resistant partition structure includes a fire prevention device including a thermal expansion material that expands due to heat, and a fire prevention device that is separate from the fire prevention device. and a long body winding part configured to bind the plurality of long bodies into a bundle, and the fire prevention device closes the gap between the through hole and the plurality of long bodies. and a step of arranging a fire prevention device attached to the partition penetration structure, and using the winding part of the elongated body, from a predetermined area on one space side of the fire prevention device in the penetration direction of the through hole to the other space side By binding a plurality of long bodies into a bundle in a region up to a predetermined region, the binding portion of the covering material tightens the covering material to restrict the radially outward expansion of the covering material. and a winding step.

According to the fire-resistant compartment structure and the construction method of the fire-resistant compartment structure, it is possible to block the passage of heat, thereby preventing the heat from flowing out from the space where the fire occurs to the space next to the compartment sandwiching the compartment, thereby preventing the spread of the fire. can be prevented.

1 is a perspective view of a fire resistant compartment structure according to an embodiment of the present invention; FIG. It is a perspective view of the fire prevention equipment which concerns on the same embodiment. It is a perspective view of the holding member of the same fire prevention device. (a) is a front view of a blocking body of the same fire prevention device, and (b) is a plan view of a thermal expansion material. It is a figure which shows the insertion process of the fire prevention equipment arrangement|positioning process which concerns on the same embodiment. It is a figure which shows the thermal expansion material pushing process of the fire prevention apparatus arrangement|positioning process which concerns on the same embodiment. It is a figure which shows the gap|clearance blockage part pushing process of the fire prevention equipment arrangement process which concerns on the same embodiment. It is a figure which shows the elongate body winding process which concerns on the same embodiment. FIG. 4 is a cross-sectional view of a plurality of elongated bodies in which the elongated body winding portion is bound according to the same embodiment; It is a front view of a pressing member according to another embodiment. FIG. 3 is a perspective view of a fire resistant compartment structure according to another embodiment;

An embodiment of the present invention will be described below. FIG. 1 shows a fireproof compartment structure 1 of this embodiment. The fireproof partition structure 1 of the present embodiment includes at least covered pipes 211 in which the outer circumference of pipes 213 are covered with a covering material 212 in through holes 200 formed in partitions 20 that partition the space in the building into a plurality of spaces. It is installed in the compartment penetrating structure 2 through which a plurality of elongated bodies 21 including one is inserted. In the following, for the sake of convenience, the space shown on the left side of FIG. will be named and explained.

In the present embodiment, the compartment penetration structure 2 is configured by inserting a plurality of elongated bodies 21 into through holes 200 formed to penetrate the compartment 20 in the thickness direction. The partition 20 of this embodiment is a wall that partitions the space in the building into one space and the other space. The division body 20 is erected in the building along the vertical direction, and divides the space into a plurality (two in this embodiment) in the horizontal direction. The partition 20 as a wall corresponds to a solid wall or a hollow wall formed of reinforced concrete or the like. This embodiment will be described on the assumption that the partition 20 is a solid wall.

In this embodiment, the partition 20 is formed with a round through hole 200 penetrating from one side to the other. The through-hole 200 of this embodiment extends straight in the thickness direction of the partition 20 and is formed to penetrate one space and the other space partitioned by the partition 20 . A plurality of (four in this embodiment) elongated bodies 21 each including two of the coated pipes 211 are inserted into the through-hole 200, and the plurality of elongated bodies 21 are partitioned by the partitioning body 20. It extends across one space and the other space.

The covered pipe 211 is composed of a pipe 213 as the elongated body 21 and a covering material 212 that covers the outer circumference of the pipe 213 . The pipe 213 is, for example, a copper pipe for flowing a fluid (gas or liquid) such as a refrigerant. Also, the covering material 212 is a resin foam that has the property of protecting the pipe 213, heat insulation, and sound insulation, and further has the property of expanding due to heat. The covering material 212 is, for example, a heat insulating material that covers the outer periphery of a pipe through which a refrigerant passes and heats the pipe. The covering material 212 of this embodiment is a resin foam made of polyethylene foam that expands and increases in volume with heat.

In this embodiment, as the elongated body 21 other than the coated pipe 211 , the electrical wiring 21 and the vinyl chloride pipe 21 larger than the electrical wiring are inserted through the through hole 200 . Furthermore, in this embodiment, each elongated body 21 is formed in a cylindrical shape, and a plurality of elongated bodies 21 are inserted into the through hole 200 in a state in which the outer peripheral surfaces of the elongated bodies 21 are in contact with each other. Therefore, a gap space 210 is formed between the outer peripheries of the adjacent elongated bodies 21 . This gap space 210 is composed of a central recessed portion 210 a formed substantially in the center of the plurality of elongated bodies 21 and a recessed portion 210 b formed on the outer periphery of the plurality of elongated members 21 .

A refractory compartment structure 1 is installed in the compartment penetrating structure 2, as shown in FIG. The fireproof partition structure 1 includes a fire prevention device 10 attached to the partition penetrating structure 2, and a long body winding part 11 configured to wind a plurality of long bodies 21 in a belt shape. Moreover, as shown in FIG. 1, the fire prevention device 10 of the present embodiment is inserted into the through hole 200 while being wound around a plurality of elongated bodies 21 . The fire prevention device 10 is arranged over the entire area of the through hole 200 . Furthermore, the fire prevention device 10 of this embodiment includes a holding member 100 , a blocker 101 and a thermal expansion member 103 .

FIG. 2 shows fire prevention device 10 prior to attachment to compartment penetration structure 2 . The fire prevention device 10 is formed in a cylindrical shape over the entire circumference of the through-hole 200 and over the entire area in the through-hole direction, and is configured such that a plurality of elongated bodies are inserted therein. In this fire prevention device 10 , the thermal expansion material 103 is arranged inwardly along the inner peripheral surface of the holding member 100 . Also, the thermal expansion member 103 protrudes axially from the flange portion 1001 of the holding member 100 . In the blocker 101 arranged in the circumferential direction of the holding member 100 along the bottom surface of the flange portion 1001, as shown in FIG. and protrudes axially from the flange portion 1001 . That is, in the fire prevention device 10 of the present embodiment, before being attached to the compartment penetrating structure 2, the thermal expansion member 103 and the blocking member 101 project axially from the flange portion 1001 of the holding member 100. The flange portion 1001 (holding member 100), the shielding body 101, and the thermal expansion member 103 are arranged in this order from the center to the radially inner side.

FIG. 3 shows the holding member 100 of this embodiment. The holding member 100 holds the thermal expansion material 103 around the elongated body 21 . As shown in FIG. 1, the holding member 100 of this embodiment has a cylindrical shape that can be inserted into the through hole 200 . Further, the holding member 100 of the present embodiment is formed in a C-shaped tubular shape in which a part of the circumferential direction is cut open in the axial direction so as to correspond to the circular through hole 200 . The length of the holding member 100 in the axial direction is substantially the same as the length of the through hole 200 in the through direction, and the length in the circumferential direction is smaller than the length of the inner peripheral surface of the through hole 200 . The diameter of the holding member 100 can be reduced by bringing circumferential ends 1000e (a pair of cut open ends) closer to each other. Thereby, the outer periphery of the fire prevention device 10 can be deformed according to the size of the through hole 200 . In this embodiment, since the outer diameter of the holding member 100 before diameter reduction is substantially the same as the inner circumference of the through hole 200, the case where the diameter of the holding member 100 is not reduced will be described. Further, the holding member 100 is attached with a thermal expansion member 103 and a blocking member 101, which will be described later. The holding member 100 of this embodiment includes a cylindrical sleeve main body portion 1000 and a flange portion 1001 projecting radially outward from the sleeve main body portion 1000 .

The sleeve main body portion 1000 is a portion that forms the main body of the holding member 100 along the inner surface of the through hole 200 when the holding member 100 is inserted into the through hole 200 . The sleeve main body portion 1000 of this embodiment is formed in a C-shaped tubular shape in which a part in the circumferential direction is cut open along the axial direction. Therefore, a pair of circumferential end portions 1000e are defined in the cut-open portion. In addition, the sleeve main body 1000 includes an inner protruding portion 1000d that supports the thermal expansion material 103 in the axial direction, and a thermal expansion material attachment portion 1000c that attaches the thermal expansion material 103 along the inner peripheral surface of the holding member 100. , and a slit portion 1000a for attaching the blocker 101.

The inner protrusion 1000d is formed at one end of the sleeve main body 1000 in the axial direction. The inner protruding portion 1000d protrudes radially inward of the C-shaped cylindrical sleeve main body portion 1000. As shown in FIG. As shown in FIG. 2, the inner protrusion 1000d allows the thermal expansion material 103 to be received and supported at the axial end in a state where the thermal expansion material 103 is superimposed on the inner peripheral surface of the holding member 100. As shown in FIG. The inner projecting portion 1000d has a predetermined width in the circumferential direction, and is formed in a trapezoidal shape in which the width in the circumferential direction becomes narrower as it protrudes radially inward. The radially inner end of the inner protruding portion 1000d is bent in the axial direction. In this embodiment, four inner protruding portions 1000d are arranged at intervals in the circumferential direction. In addition, the space between the inner protruding portions 1000d in the circumferential direction is substantially the same as the size in the circumferential direction of the penetrating portion 1000b, which will be described later.

The thermal expansion material mounting portion 1000c is for arranging and locking the thermal expansion material 103 along the inner peripheral surface of the holding member 100. As shown in FIG. The thermal expansion member attachment portion 1000c of the present embodiment attaches the thermal expansion member 103 by engaging with the bifurcated locking claw 1000cb inserted into the insertion hole 103a of the thermal expansion member 103 and the locking claw 1000cb. and a locking portion 1000ca. Then, the engaging portion 1000ca protruding radially inward from the sleeve body portion 1000 is bent toward the engaging claw 1000cb, the engaging claw 1000cb is inserted into the hole of the engaging portion 1000ca, and the thermal expansion material mounting portion 1000c is attached. Form. In addition, in this embodiment, three thermal expansion material attachment portions 1000c are arranged in the circumferential direction, and the inner projection portion 1000d is arranged between the thermal expansion material attachment portions 1000c in the circumferential direction. Furthermore, in the sleeve body portion 1000 of the present embodiment, the thickness of the portion where the thermal expansion material attachment portion 1000c is formed is reduced.

As shown in FIG. 3, the slit portion 1000a extends along the circumferential direction of the sleeve main body portion 1000 and is formed through the sleeve main body portion 1000 in its thickness direction. The slit portion 1000a is used when attaching the blocker 101 to the holding member 100, which will be described later. In the sleeve body 1000, the slits 1000a of this embodiment have a substantially rectangular shape whose circumferential direction is longer than the axial direction. Furthermore, the edge of the slit portion 1000a is defined by the sleeve body portion 1000 and a flange portion 1001, which will be described later. Therefore, as shown in FIG. 3, the slit portion 1000a of the present embodiment is arranged on the other end side of the sleeve main body portion 1000 in the axial direction.

A penetrating portion 1000b penetrating in the thickness direction is formed in the sleeve body portion 1000 of the present embodiment. As shown in FIG. 3, three through-holes 1000b are formed in the sleeve body 1000 in the circumferential direction. Further, the through portion 1000b is formed in a trapezoidal shape whose width increases from the axial end on the side where the flange portion 1001 described later is formed toward the opposite end.

A flange portion 1001 projecting radially outward is formed at the other axial end portion of the sleeve main body portion 1000 . The flange portion 1001 is brought into contact with the outer surface of the partition 20 when the fire prevention device 10 is inserted into the through hole 200 . That is, the holding member 100 is installed in the through hole 200 with the sleeve body 1000 inserted into the through hole 200 and the flange 1001 in contact with the opening edge of the through hole 200 on the outer surface of the partition 20 . be. The flange portion 1001 of the present embodiment is formed in a plate-like shape extending radially outward from the sleeve main body portion 1000 and provided on the entire circumference. In addition, in the present embodiment, the sleeve main body 1000 is formed in a C-shaped cylindrical shape along the inner surface of the circular through hole 200 , so that the flange 1001 serves as the incision position of the sleeve main body 1000 . It is formed into a C-shaped ring cut at the same position. The flange portion 1001 includes a screw hole 1001a used when fixing the fire prevention device 10 to the partition 20, a notch portion 1001b cut radially inward from the outer circumference of the flange portion 1001, and a fixing metal fitting ( (not shown) is formed. The screw hole 1001a of this embodiment is formed at a location where the outer periphery of the flange portion 1001 protrudes radially outward. Moreover, a plurality (five in this embodiment) of the notch portions 1001b are arranged in the circumferential direction of the flange portion 1001, and some of them are arranged at the same positions as the fixing metal mounting portions 1001c.

Further, a recessed portion 1001d recessed in the radially outward direction is formed on the inner periphery of the flange portion 1001 of this embodiment. The recessed portion 1001d is formed in a portion of the flange portion 1001 that defines the slit portion 1000a. As shown in FIG. 2, the recessed portion 1001d is formed by opening the gap closing portion 101e of the blocking body 101 in the fire prevention device 10 before being attached to the compartment penetrating structure 2 in the radially outward direction from the fire prevention device 10. It works to

FIG. 4(a) shows a plan view of the blocking body 101 of this embodiment. The shielding body 101 of this embodiment is formed in a substantially circular sheet shape with a screwing portion 101f formed on the outer edge, and a circular auxiliary hole 101a for inserting the elongated body 21 is formed in the center. there is It also has a cut line portion 101b extending from the auxiliary hole 101a toward the outer edge of the blocking body 101, and a dividing line portion 101c dividing the circular blocking body 101 in the radial direction. The cut line portion 101b is formed so as to cut the blocking body 101 in the radial direction and the thickness direction. Further, the cut line portions 101b of the present embodiment are radially arranged such that the interval between the cut line portions 101b increases from the side of the auxiliary hole 101a toward the outer edge side. In this embodiment, a first cut line portion 101ba having a long cut length from the auxiliary hole 101a to the outer edge, and a second cut line portion 101bb having a shorter cut length than the first cut line portion 101ba. are arranged alternately in the circumferential direction. Furthermore, the parting line portion 101c is arranged at a position between the second cut line portions 101bb, as shown in FIG. 4(a).

In this embodiment, the space between the cut line portions 101b in the circumferential direction of the shielding body 101 or between the cut line portion 101c and the cut line portion 101b is defined as a gap closing portion 101e. In the blocking body 101 of the present embodiment, the gap blocking portion 101e extends in the radially inner direction, and a plurality of the gap blocking portions 101e are arranged side by side so as to cover the entire circumference in the circumferential direction. The cut line portions 101bb are alternately arranged. Therefore, the space between the first cut line portion 101ba or the cut line portion 101c and the second cut line portion 101bb is defined as a small gap closing portion 101eb, and the first cut line portions 101ba or the cut line portion 101c. A large gap closing portion 101ea is defined between the first insertion line portions 101ba. The gap closing portion 101e of the present embodiment has a tapered shape that becomes narrower as it approaches the central position of the blocking body 101. As shown in FIG.

The shielding body 101 of this embodiment has an attachment hole 101 d for attachment to the holding member 100 . This mounting hole 101d is formed from the outer edge of the blocking member 101 toward the center. Moreover, in this embodiment, four mounting holes 101d are arranged in the circumferential direction. Specifically, it has a first attachment hole 101da for attaching to the circumferential end portion 1000e of the sleeve body portion 1000 and a second attachment hole 101db for attaching the sleeve body portion 1000 between the two slit portions 1000a. Two first attachment holes 101da are arranged on the upper side of FIG. 4(a) so as to sandwich the parting line portion 101c in the circumferential direction, and two second attachment holes 101db are arranged on the lower side. It is The first attachment hole 101da is formed by a cut line extending from the outer edge of the blocking body 101 toward the center and a notch in the circumferential direction from the end of the cut line on the center side. On the other hand, the second attachment hole 101db is cut inward from the outer edge of the blocking member 101 in a T-shape. In this embodiment, a slit insertion portion 101g inserted into the slit portion 1000a of the sleeve body portion 1000 is provided between the first attachment hole 101da and the second attachment hole 101db and between the two second attachment holes 101db. stipulated. In this embodiment, the slit insertion portion 101g is inserted into the slit portion 1000a, the gap between the slit portions 1000a is inserted into the second mounting hole 101db, and the circumferential end of the sleeve body portion 1000 is inserted into the first mounting hole 101da. By inserting the portion 1000e, as shown in FIG. 2, the dividing line portion 101c is arranged between the circumferential ends 1000e of the sleeve main body portion 1000, and the blocking member 101 is attached to the holding member 100. FIG. In addition, in the present embodiment, the blocker 101 attached to the holding member 100 is arranged on the bottom side of the flange portion 1001 (the side facing the outer surface of the partition 20), as shown in FIG. be. Here, the thickness of the blocking body 101 of this embodiment is formed to be shorter than the length in the axial direction of the slit portion 1000a. Therefore, it is easy to insert the slit insertion portion 101g into the slit portion 1000a. Moreover, after being attached to the holding member 100 , the blocker 101 is allowed to move in the axial direction of the holding member 100 . Furthermore, when the blocker 101 is arranged on the bottom side of the flange portion 1001 , the screw portion 101 f is arranged so as to overlap the screw hole 1001 a of the flange portion 1001 . Therefore, the holding member 100 and the blocker 101 can be fixed to the partition 20 with screws. In addition, the shielding body 101 of the present embodiment has thermal expansibility (property of increasing its volume due to heat), fire resistance (property that resists fire and is difficult to burn), and thermal insulation (property that makes it difficult to conduct heat). , having at least one property.

The thermal expansion material 103 of this embodiment expands due to the heat of the fire and fills the gaps between the inner surfaces of the through-holes 200 and the outer peripheral surfaces of the elongated bodies 21 . Specifically, the thermally expansible material 103 of the present embodiment is composed of a refractory material 1031 having a property of being expanded by heat, and a flexible bag 1030 which seals the refractory material 1031 and has flexibility. In addition, the refractory material 1031 has fire resistance (property to withstand fire and is difficult to burn), thermal expansibility (property to increase volume by heat), and thermosetting (property to harden by heat). Furthermore, the refractory material 1031 of this embodiment is paste-like. Therefore, as shown in FIG. 2, a bag 1030 sealed with a refractory material 1031 can be arranged along the inner peripheral surface of the holding member 100 curved into a C-shaped cylindrical shape.

The bag 1030 seals the periphery while containing the refractory material 1031 . The bag 1030 of this embodiment is formed in a rectangular shape, and the long sides are formed longer than the inner periphery of the holding member 100 . Also, the short sides of the bag 1030 are longer than the length of the holding member 100 in the axial direction. Further, insertion holes 103a are formed at predetermined intervals along the long side of the sealed peripheral portion. Specifically, in the bag 1030 of this embodiment, three insertion holes 103a are formed, and these insertion holes 103a are arranged at intervals near one short side of the rectangular bag 1030 . In this embodiment, the spacing is the same as the spacing between the thermal expansion member mounting portions 1000c of the sleeve body portion 1000. As shown in FIG. Therefore, when fixing the thermal expansion member 103 to the holding member 100, it is attached using the insertion hole 103a and the thermal expansion member attachment portion 1000c. Specifically, after bending the long side on which the insertion hole 103a is formed toward the inner surface of the bag 1030, the one short side is aligned with the circumferential end 1000e of the sleeve main body 1000, and is fitted into the insertion hole 103a. While inserting the locking claw 1000cb, the thermal expansion material 103 is arranged along the inner peripheral surface of the sleeve body portion 1000, the locking portion 1000ca is bent toward the locking claw 1000cb, and is inserted into the hole of the locking portion 1000ca. Attachment is performed by engaging the locking claw 1000cb.

As shown in FIG. 1 , the long body winding part 11 of the present embodiment is arranged on one space side of the fire prevention device 10 in the penetrating direction of the through hole 200 , and winds the outer circumference of the plurality of long bodies 21 . spinning. The elongated body winding portion 11 is formed in a strip shape, and is formed longer than the outer circumferences of the plurality of elongated bodies 21 so as to be wound around the outer circumferences of the plurality of elongated bodies 21 . Further, in the elongated body winding portion 11 of the present embodiment, an adhesive member is applied to the short sides of the surfaces that come into contact with the outer peripheral surfaces of the plurality of elongated bodies 21 . Therefore, when the long body winding portion 11 is wound around the plurality of long bodies 21, the long body winding portion 11 can be fixed to the outer circumferences of the plurality of long bodies 21 with the adhesive member. In addition, the adhesive member can be provided on the entire surface of the plurality of elongated bodies 21 on the side contacting the outer peripheral surface, or can be provided on a part thereof.

The above is the description of the fireproof compartment structure 1 of the present embodiment. Next, a method for constructing the fireproof compartment structure 1 of the present embodiment will be described. When constructing the fireproof partition structure 1 of the present embodiment, it is necessary to perform a fire prevention device placement process and a long body winding process.

FIG. 5 shows the insertion step of the fire prevention device placement step. In this insertion step, in one of the spaces, after attaching the fire prevention device 10 to the outer circumference of the plurality of elongated bodies 21 extending to the plurality of spaces through the through holes 200, the fire prevention device 10 is inserted into the through holes 200. insert. At this time, the ends 1000e of the sleeve main body 1000 in the circumferential direction are spread apart, and the overlapped state of the both ends in the circumferential direction of the thermal expansion member 103 is eliminated. As a result, the dividing line portions 101c of the blocking member 101 disposed between the circumferential end portions 1000e are expanded in the circumferential direction, and as indicated by the two-dot chain line in FIG. A fire prevention device 10 can be attached to the outer circumference of the Here, in this embodiment, as shown in FIG. 5, the blocker 101 is arranged apart from the bottom surface of the flange portion 1001 . In this embodiment, the fire prevention device 10 is arranged so that the end opposite to the end where the flange portion 1001 of the sleeve body portion 1000 is formed is located on the through hole 200 side in one space. do.

After attaching the fire prevention device 10 along the outer periphery of the plurality of long bodies 21, the fire prevention device 10 is slid along the long body 21 toward the other space side, and the bottom surface of the flange part 1001 The fire prevention device 10 is pushed into the through-hole 200 until the blocking member 101 overlapping with the partition member 20 abuts against the outer surface of the partition member 20 . After the blocker 101 comes into contact with the outer surface of the partition 20 , the flange portion 1001 is moved in the direction of the through hole 200 , so that the gap between the flange portion 1001 and the blocker 101 is filled and the outer surface of the partition 20 is closed. and the bottom surface of the flange portion 1001 sandwich the blocker 101 . After that, screws are inserted into the screw portion 101f and the screw hole 1001a (not shown in FIG. 5) to fix the fire prevention device 10 to the partition 20. As shown in FIG.

FIG. 6 shows the step of pushing in the thermal expansion material in the step of arranging the fire prevention device. In this thermal expansion material pushing step, the thermal expansion material 103 that is longer than the axial length of the holding member 100 and protrudes axially from the flange portion 1001 is bent toward the through hole 200 and pushed into the through hole 200 . At this time, the thermal expansion material 103 indicated by the two-dot chain line in FIG. 6 is bent toward the long body 21 as indicated by the arrow in FIG. Then, the thermal expansion material 103 is pushed into the through hole 200 so as to fill the gaps between the thermal expansion material 103 and the plurality of elongated bodies 21 . Further, as shown in FIG. 6 , when pushing the thermal expansion material 103 into the through hole 200 , the thermal expansion material 103 is pushed in so that the thermal expansion material 103 is arranged closer to the through hole 200 than the blocking body 101 . Thereby, the thermal expansion material 103 can be accommodated in the through hole 200 . Further, by accommodating the thermal expansion material 103 in the through hole 200 , the gap closing portion 101 e that was bent along the outer peripheral surface of the thermal expansion material 103 will follow the outer periphery of the elongated body 21 .

FIG. 7 shows the step of pushing the gap closing portion in the step of arranging the fire prevention device. In this gap closing portion pushing step, the gap closing portion 101 e protruding along the outer periphery of the plurality of elongated bodies 21 is pushed into the through hole 200 . Here, the plurality of elongated bodies 21 of this embodiment are inserted into the through holes 200 in a state in which the outer peripheral surfaces of the elongated bodies 21 are in contact with each other. Therefore, as shown in FIG. 9, recesses 210b are formed as clearance spaces 210 between the elongated bodies 21 . Therefore, in the gap closing portion pushing step, the gap closing portion 101e is pushed into the through hole 200 so as to fill the concave portion 210b. Specifically, after bending the gap closing portion 101e toward the inside of the through hole 200, the gap closing portion 101e is bent toward the inside of the through hole 200 again, and then folded back toward the flange portion 1001. It is pushed between the scale body 21 and inserted into the through hole 200 . Here, in the present embodiment, the gap blockage portion 101e includes the large gap blockage portion 101ea and the small gap blockage portion 101eb. The concave portion 210b that cannot be completely closed by the portion 101ea is closed. Then, as shown in FIG. 7, the gap closing portion 101e is arranged on the plurality of elongated bodies 21 side of the thermal expansion material 103. As shown in FIG. The above is the description of the fire prevention device placement process. Next, the long body winding process will be described.

In the long-body winding process, the long-body winding part 11 is used to wind the plurality of long bodies 21 in the area from one space to the other space of the fire prevention device 10 in the penetrating direction of the through hole 200. bind in a bundle. In this embodiment, after the fire prevention device placement step, the long body winding part 11 is arranged on the plurality of long bodies 21 on one space side of the fire prevention device 10, and as shown in FIG. The long body winding part 11 is wound around the plurality of long bodies 21 in the vicinity of the flange part 1001 of the fire prevention device 10 inserted into the hole 200 . In addition, since the long body winding portion 11 of the present embodiment is provided with an adhesive member on the short side of the surface that contacts the outer peripheral surfaces of the plurality of long bodies 21, the long body winding portion 11, one short side of the long body winding part 11 is attached to the outer peripheral surface of the long body 21 using the adhesive member of the long body winding part 11, and the long body After the winding portion 11 is wound along the outer periphery of the plurality of long bodies 21, the adhesive member on the other short side is attached to the outer surface of the long body winding portion 11, and as shown in FIG. The body winding part 11 is fixed to the plurality of long bodies 21. - 特許庁It should be noted that the binding of the long body 21 by the winding portion 11 of long body is an appropriate tightening so that the covering material 212 of the covering pipe 211 does not expand at the binding portion due to the heat of the fire. In this way, the fire-resistant partition structure 1 shown in FIG. 1 is formed.

As described above, according to the fireproof partition structure 1 of the present embodiment and the construction method thereof, in the penetrating direction, the long body winding part 11 extends from a predetermined area on one side of the fire prevention device 10 to a predetermined area on the other side of the space. By binding the plurality of elongated bodies 21 into a bundle in the area up to the area, expansion of the covering material 212 in the outer diameter direction is restricted, so that the covering material 212 is prevented from closing the gaps between the elongated bodies 21 due to the heat of the fire. inflate to block the Therefore, it is possible to block the heat path between the bundled elongated bodies 21 . The term "predetermined region" as used herein refers to a region assumed as a range in which the long body winding portion winds the long body. area. Specifically, in this embodiment, the long body winding part 11 is wound around the plurality of long bodies 21 in one space and near the fire prevention device 10 inserted into the through hole 200. . Therefore, if a fire breaks out in the other space, the covering material 212 that expands due to heat flowing from the other space to the one space through the through holes 200 is placed in the gap space 210 (recess 210b) shown in FIG. , central recess 210a) is closed. This can block the heat path. Further, in the present embodiment, the plurality of long bodies 21 are wound by the long body winding portion 11, so that the coating material 212 is restricted from expanding the plurality of long bodies 21 in the radially outer direction. Therefore, the coating material 212 expands in the radial direction of the plurality of elongated bodies 21, and as a result, the gap space 210 is filled, and heat can be prevented from flowing to the adjacent space.

In addition, according to the fireproof partition structure 1, the long body winding part 11 is arranged on one side of the space from the thermal expansion material 103, so that the expansion of the thermal expansion material 103 is caused by the long body winding part 11. You can prevent being disturbed. Specifically, since the long body winding part 11 is arranged in one space of the through hole 200 in the through hole direction, when the thermal expansion material 103 inside the through hole 200 expands due to the heat of the fire, The thermal expansion material 103 can fill the through hole 200 regardless of whether the length body winding portion 11 is wound around the long body 21 or not.

In addition, since the blocking member 101 of the present embodiment is arranged on one space side of the fire prevention device 10, heat can be prevented from flowing out from the opening of the fire prevention device 10 to one or the other space. Specifically, since the blocking member 101 is arranged so as to overlap the bottom surface of the flange portion 1001, it is possible to prevent heat from flowing out from the opening of the fire prevention device 10 to one or the other space.

Further, in the fireproof partition structure 1 of the present embodiment, the gap closing portion 101e is inserted into the through hole 200 so as to fill the recess 210b. Therefore, the gap (recess 210b) between the elongated bodies 21 in the through hole 200 can be closed. Therefore, the spread of fire to one space can be prevented.

Further, in the present embodiment, the fire prevention device 10 is pushed into the through hole 200 until the blocking member 101 overlapping the bottom surface of the flange portion 1001 hits the outer surface of the partition body 20, and the bottom surface of the flange portion 1001 and the partition member A blocking member 101 is sandwiched between the outer surfaces of 20 . Therefore, the blocker 101 (gap blocker 101e) is prevented from moving toward one space, and the gap 210 between the elongated bodies 21 can be reliably kept closed.

Further, the gap closing portion 101e is arranged along the circumferential direction of the cylindrical holding member 100 by inserting the slit insertion portion 101g into the slit portion 1000a of the holding member 100. As shown in FIG. Therefore, it is possible to prevent the blocking member 101 from rotating in the circumferential direction with respect to the holding member 100 . Therefore, after inserting the gap closing portion 101e into the gap space (recessed portion 210b) between the elongated bodies 21, the blocking body 101 rotates in the circumferential direction so that the gap closing portion 101e moves toward the outer peripheral surface of the elongated body 21. It is possible to prevent it from falling out of the concave portion 210b due to collision.

In addition, in the present embodiment, the plurality of cut line portions 101b extending from the center to the outer edge of the blocking body 101 are formed radially so that the distance in the circumferential direction increases toward the outer edge side. The gap closing portion 101e defined by the cut line has a tapered shape that narrows toward the central position of the blocking body 101. As shown in FIG. Therefore, it is easy to insert the gap closing portion 101e into the concave portion 210b all the way.

Next, a fireproof partition structure 1 according to another embodiment will be described with reference to FIGS. 10 and 11. FIG. In the fireproof partition structure 1 according to another embodiment, the same reference numerals are given to the same configurations as those of the above-described one embodiment, and the description thereof is omitted.

A fireproof partition structure 1 of another embodiment includes a pressing member 102 in addition to the fire prevention device 10 and the long body winding portion 11 described in the first embodiment. In the fireproof partition structure 1 of another embodiment, as shown in FIG. 11 , a pressing member 102 is attached in front of the fireproof device 10 inserted into the through hole 200 . As shown in FIG. 10, the pressing member 102 is formed in a circular sheet shape, and penetrates the long body 21 using a substantially octagonal auxiliary hole 102b formed in the center. Further, in another embodiment, the outer diameter of the holding member 100 before diameter reduction is configured to be larger than the inner circumference of the through hole 200 . Therefore, in another embodiment, after the fire prevention device 10 is attached along the outer periphery of the plurality of elongated bodies 21, the circumferential ends 1000e are brought closer to each other so that the outer diameter of the holding member 100 is adjusted to the through hole 200. The holding member 100 is inserted into the through hole 200 after being reduced in diameter so as to be smaller than the inner circumference, and then expanded along the inner circumference of the through hole 200 . Therefore, in the fireproof partition structure 1 of another embodiment, the diameter of the fireproof device 10 inserted into the through hole 200 is reduced. Furthermore, in the fire-resistant partition structure 1 of another embodiment, the elongated body winding portion 11 is arranged so as to overlap with a later-described spreading portion 102f.

FIG. 10 is a front view of the pressing member 102. FIG. The pressing member 102 of the present embodiment has cut line portions 102c extending toward the outer edge at each corner of the octagonal auxiliary hole 102b. In addition, the cut line portion 102c is formed shorter than a parting line portion 102a, which will be described later, and also has two circumferential cut line portions 102ca extending in the circumferential direction. A widening portion 102f is defined by the cut line portions 102c or by the cut line portion 102c and the dividing line portion 102a. In the pressing member 102 of the present embodiment, since a total of eight cut line portions 102c and parting line portions 102a are formed in the circumferential direction, eight enlarged portions 102f are arranged around the entire circumference centering on the auxiliary hole 102b. It is Therefore, by bending the expanding portion 102f, the auxiliary hole 102b can be expanded. Moreover, as shown in FIG. 10, since the circumferential cut line portion 102ca is formed in the widening portion 102f, the degree of bending can be adjusted by the widening portion 102f. Therefore, the size of the auxiliary hole 102b can be changed according to the outer circumference of the elongated body 21. FIG. Further, the pressing member 102 is provided with a dividing line portion 102a that extends from the auxiliary hole 102b to the outer edge and divides the pressing member 102. As shown in FIG. A circular pressing member 102 is attached to the elongated body 21 using the parting line portion 102a. In addition, the pressing member 102 of this embodiment is provided with a screw hole 102e. The pressing member 102 is fixed to the partition 20 using the screw hole 102e.

When the pressing member 102 of the present embodiment is attached to the fireproof partition structure 1, the attachment is performed after the step of arranging the fire prevention device and the step of winding the long body (pressing mounting step). Note that, in another embodiment, the fixing of the fire prevention device 10 to the partition 20 with a screw is performed in the press mounting step. Specifically, in the presser mounting step, after inserting the fire prevention device 10 into the through hole 200, the presser member 102 is expanded in the circumferential direction, and the plurality of elongated bodies 21 are inserted from the dividing line portion 102a into the auxiliary hole 102b. pass through. At this time, the expanding portion 102f is bent toward one space side to expand the auxiliary hole 102b so as to correspond to the diameters of the plurality of elongated bodies 21. As shown in FIG. Here, the bent widening portion 102f is arranged so as to overlap the long body winding portion 11. As shown in FIG. Then, the pressing member 102 is arranged on one space side of the fire prevention device 10 . Furthermore, in another embodiment, the screw hole 102e is arranged so as to overlap the screw hole 1001a and the screw portion 101f (not shown) of the holding member 100. FIG. Therefore, a screw (not shown) is inserted into the screwing hole 102e so as to pass through the screwing portion 101f and the screwing hole 1001a, thereby fixing the fire prevention device 10 and the pressing member 102 to the partition body 20.

As described above, in the fireproof partition structure 1 according to another embodiment, since the holding member 102 is arranged on one space side of the fire prevention device 10, the fireproof material 1031 coming out of the bag 1030 does not leak from the through hole 200. can be prevented. Moreover, since the fire prevention device 10 can be hidden from one space, the blocker 101 can be prevented from protruding from the recess 210b to the one space side. Furthermore, since the expanding portion 102f is arranged so as to overlap the long body winding portion 11, the long body winding portion 11 can be maintained in a wound state without being separated from the plurality of long bodies 21. FIG.

In addition, in the construction method of the fireproof partition structure 1 of one or another embodiment, the fireproof device 10 is arranged on the outer periphery of the elongated body 21 in one space and inserted into the through hole 200 (the fireproof device placement step is ), and the long body winding part 11 is wound around the plurality of long bodies 21 (long body winding step), so that the fireproof partition structure 1 can be constructed without moving to the other space. can.

As described above, according to the fire-resistant compartment structure 1 and the construction method of the fire-resistant compartment structure 1 of the present embodiment, the path of heat can be blocked, so that heat cannot be transferred from the space where the fire occurs to the adjacent space with the compartment body 20 interposed therebetween. can prevent the outflow of fire and prevent the spread of fire.

Although the embodiments of the present invention have been described above by way of example, the present invention is not limited to one or other embodiments, and various modifications can be made without departing from the gist of the present invention. can.

In the present embodiment, the case where the partition body 20 is a solid wall has been described. However, the partition body is not limited to this. good. In the case of a hollow wall, a cylindrical steel sleeve is inserted into the through hole 200 prior to inserting the fire prevention device 10 into the through hole 200 . Further, in the above-described embodiment, a case where the partition 20 is a wall that partitions the space inside the building has been described, but the partitioning body 20 is not limited to this, and may be a wall that partitions the inside and outside of the building. In addition, the partitions 20 are not limited to walls, and may be floors or ceilings that partition the interior of the building into a plurality of sections in the vertical direction. Furthermore, it may be a floor outside the building.

In the present embodiment, the case where the through-hole 200 has a cylindrical (round-hole) shape has been described, but the shape of the through-hole 200 is not limited to this, and the shape of the through-hole 200 may be other than the cylindrical shape, such as a polygonal shape, an elliptical shape, or other shapes. It may be a shaped hole.

Also, in the present embodiment, the case where the through-hole 200 extends straight in the thickness direction of the partition 20 has been described, but the through-hole 200 may be formed in an L shape, for example. In this case, the plurality of elongated bodies 21 are bent along the L-shaped through hole 200 and inserted through the through hole 200 .

Further, in the present embodiment, four elongated bodies 21 are inserted through the through holes 200, but the present invention is not limited to this, and at least three elongated bodies 21 may be inserted.

In addition, in the present embodiment, the pipe 213 and the coated pipe 211 composed of the coating material 212 covering the outer periphery of the pipe 213 are inserted into the through hole 200. However, the present invention is not limited to this. A long body such as an electric wire may be covered with the covering material 212 . That is, any multi-layer elongated body whose outer circumference is covered with the covering material 212 may be used.

In addition, although the plurality of elongated bodies 21 of the present embodiment includes two coated pipes 211 (multilayered elongated bodies), the present invention is not limited to this, and three or more multilayered elongated bodies are inserted. It may be provided, or it may be only one.

In addition, in the present embodiment, the case where the fire prevention device 10 is inserted into the through hole 200 has been described, but this is not the only option. It may be configured to be disposed on the outer surface of the partition 20 (that is, the opening edge of the through hole 200 in the partition 20). In addition, in the above one or other embodiments, the case where the fire prevention device 10 is arranged over the entire through hole 200 has been described, but the fire prevention device 10 is not limited to this, and the fire prevention device 10 is disposed halfway through the through hole 200. length. That is, in this case, the axial length of the sleeve main body is shorter than the length of the through hole. Furthermore, in this case, the fire prevention device 10 may be inserted into the through hole 200 from both one space and the other space.

Further, in the present embodiment, the case where the long body winding part 11 is arranged on one side of the fire prevention device 10 has been described, but this is not the only option, and the long body winding part 11 It may be arranged on the other space side of the fire prevention device 10, or may be arranged on both one and the other space side with the fire prevention device 10 at the center. Furthermore, the long body winding part 11 includes a plurality of long bodies 21 so as to continue from one space to the other space from the fire prevention device 10 so as to include the fire prevention device 10 in the middle. may be wound.

Further, in the present embodiment, the long body winding part 11 is formed in a strip shape, and is formed longer than the outer circumference of the plurality of long bodies 21 so as to be wound around the outer circumference of the plurality of long bodies 21. However, the long body winding part 11 is not limited to this, as long as the long body winding part 11 can bind the plurality of long bodies 21 into a bundle, it may not be belt-shaped. It may be formed by combining semi-annular ring members.

Further, in the present embodiment, the case where the holding member 100 is formed in a cylindrical shape so as to correspond to the inner surface shape of the through hole 200 has been described. For example, it may be formed in a flat plate shape before being inserted.

Further, in the present embodiment, a case where one long body winding portion 11 winds a plurality of long bodies 21 has been described, but the present invention is not limited to this, and a plurality of long body winding portions 11 are wound by a plurality of long body winding portions 11. It may be wound around the elongated body 21 .

In this embodiment, the case where the long body winding portion 11 is wound around a plurality of long bodies 21 in the same space as the gap closing portion 101e has been described. When the winding portion 11 is wound around a plurality of elongated bodies 21 in a space different from the gap closing portion 101e, or when the elongated body winding portion 11 is wound around a plurality of elongated bodies 21 in both the same space and a different space. It may be wound.

In the present embodiment, the case where the blocking body 101 is arranged only in one space with respect to the thermal expansion material 103 has been described. It may be arranged on both sides of the space and the other space.

In the present embodiment, the case where the fire prevention device 10 includes the blocking body 101 has been described, but the fire prevention device 10 is not limited to this, and may be a case where the fire prevention device 10 does not have the blocking body 101 .

In the present embodiment, a case has been described in which the long body winding part 11 is wound around a plurality of long bodies 21 after the fire prevention device 10 is arranged. The fire prevention device 10 may be arranged after winding the long body winding part 11 . In other words, the "fire prevention device placement step" may be performed after the "long body winding step". Further, the pressing member 102 may be arranged on one space side of the fire prevention device 10 after the fire prevention device placement step and before the long body winding step.

In addition, although the gap closing portion 101e of the present embodiment is formed in a tapered shape by radially arranged cut lines, the gap closing portion 101e is not limited to this, and has a plurality of cuts extending in parallel toward the outer edge side. It may be formed in a rectangular shape by lines.

In the present embodiment, in the gap closing portion pushing step, the gap closing portion 101e is bent toward the inside of the through hole 200, inserted into the through hole 200, and then folded back toward the flange portion 1001. However, this is not the only option. Instead, the gap closing portion 101e may simply be pushed between the thermal expansion material 103 and the elongated body 21. As shown in FIG. Here, the gap blockage portion 101e includes the large gap blockage portion 101ea and the small gap blockage portion 101eb. be done. Therefore, the gap closing portion 101e can be inserted all the way into the recess 210b.

The fireproof partition structure of the above embodiment includes a plurality of long bodies including at least one multi-layer elongated body whose outer periphery is covered with a coating material in a through hole formed in a partition that divides a space into a plurality of sections. A fireproof compartment structure installed in a compartment penetration structure through which a lengthy body is inserted, the compartment penetration structure including a thermal expansion material that expands due to heat, so as to close gaps between the through hole and the plurality of long bodies. and the plurality of elongated bodies are bound in a bundle in an area from a predetermined area on one side of the fire prevention apparatus to a predetermined area on the other space side of the fire prevention apparatus in the penetrating direction of the through hole. and a long body winding portion configured as follows.

According to the fireproof partition structure, the winding portion of the elongated body bundles the plurality of elongated bodies in a region extending from a predetermined region on the side of one space to a predetermined region on the side of the other space with respect to the fire prevention device in the penetrating direction. Since the expansion of the covering material in the radially outer direction is restricted by binding to , the covering material expands so as to block the gap between the elongated bodies due to the heat of the fire. For this reason, it is possible to block the heat path between the bundled elongated bodies.

Further, in the fireproof partition structure of the above embodiment, the fire prevention device is inserted into the through-hole so as to fill the gap between the through-hole and the plurality of elongated bodies, and the elongated body winding part In terms of direction, it can also be configured to be arranged on one and/or the other side of the thermal expansion material.

According to the fireproof section structure, the winding portion of the elongated body is arranged on the one and/or the other side of the thermal expansion material in the penetrating direction. It is possible to prevent obstruction by the part.

Further, in the fireproof partition structure of the above embodiment, the fire prevention device includes a gap closing portion that fills a concave portion formed by outer peripheries of adjacent elongated bodies among the plurality of elongated bodies, and the gap closing part is disposed on one and/or the other space side from the thermal expansion material in the penetration direction, and the elongate body winding part is arranged on the one and/or the other space side from the fire prevention device in the penetration direction It can also be configured to be placed on the side.

According to the above fireproof compartment structure, while preventing the expansion of the thermal expansion material from being hindered, by bundling a plurality of elongated bodies with the elongated body winding part and filling the concave part with the gap closing part, It is possible to close the gap through which heat passes more reliably.

In addition, in the construction method of the fire-resistant partition structure of the above-described embodiment, at least one multi-layered elongated body having the outer circumference of the elongated body covered with a coating material is placed in the through-hole formed in the partition body that divides the space into a plurality of sections. A method for constructing a fire-resistant partition structure installed in a partition-penetrating structure in which a plurality of elongated bodies are inserted, wherein the fire-resistant partition structure includes a fire prevention device including a thermal expansion material that expands due to heat; a long body winding part configured to bind the long bodies into a bundle, wherein the fire prevention device is arranged to close the gap between the through hole and the plurality of long bodies. A step of arranging fire prevention equipment attached to the through structure, and using the winding part of the long body, from a predetermined area on one space side of the fire prevention equipment in the penetration direction of the through hole to a predetermined area on the other space side and a long body winding step of binding the plurality of long bodies into a bundle in the region.

According to the construction method of the fireproof partition structure, the winding portion of the long body extends from a predetermined region on one side of the fire prevention device in the penetrating direction to a predetermined region on the other side of the space. Since the expansion of the coating material in the radially outer direction is restricted by binding them into a bundle, the coating material expands so as to block the gaps between the elongated bodies due to the heat of the fire. For this reason, it is possible to block the heat path between the bundled elongated bodies.

Further, in the construction method of the fireproof partition structure of the above embodiment, in the step of arranging the fireproof device, the fireproof device is inserted into the through-hole so as to fill the gap between the through-hole and the plurality of elongated bodies, In the elongated body winding step, the elongated body winding portion may be disposed on one and/or the other side of the thermal expansion material in the penetration direction.

According to the method for constructing a fire-resistant partition structure, since the winding portion of the elongated body is arranged on the one and/or the other side of the thermal expansion material in the penetration direction, the expansion of the thermal expansion material causes the expansion of the thermal expansion material It is possible to prevent obstruction by the body winding portion.

Further, in the method for constructing a fireproof partition structure of the above embodiment, the fire prevention device includes a gap closing portion that fills a recess formed by outer peripheries of adjacent elongated bodies among the plurality of elongated bodies, The gap closing part is arranged on one and/or the other space side of the thermal expansion material in the penetration direction, and in the long body winding step, the long body winding part is arranged in the penetration direction. It can also be configured to bind the plurality of elongated bodies on one and/or the other space side of the fire prevention device.

According to the construction method of the fire-resistant partition structure, the plurality of elongated bodies are bundled by the elongated body winding portion while the expansion of the thermal expansion material is not hindered, and the recess is filled with the gap closing portion. Thus, the gap through which heat passes can be blocked more reliably.

DESCRIPTION OF SYMBOLS 1... Fireproof compartment structure 10... Fire prevention equipment 100... Holding member 101... Blocking body 102... Holding member 103... Thermal expansion material 2... Compartment penetrating structure 20... Compartment body 21... Elongated body

Claims (3)

A compartment penetrating structure in which a plurality of elongated bodies including at least one multilayer elongated body whose outer circumference is coated with a coating material are inserted through through-holes formed in a partitioned body that divides a space into a plurality of compartments. A fire resistant compartment structure to be installed, comprising:
a fire prevention device that includes a thermal expansion material that expands due to heat and is attached to the partition penetrating structure so as to close a gap between the through hole and the plurality of elongated bodies;
By binding the plurality of elongated bodies in a bundle in a region from a predetermined region on one space side to a predetermined region on the other space side of the fire prevention device in the penetrating direction of the through hole, A fire-resistant compartment structure, wherein the constraining portion comprises an elongate body winding configured to tighten the covering material to restrict radially outward expansion of the covering material. The elongate body winding part is configured to bind the plurality of elongate bodies on the one space side and in the vicinity of the fire prevention device with respect to the fire prevention device in the penetrating direction of the through hole. The fire resistant compartment structure of claim 1, wherein the fire resistant compartment structure is A compartment penetrating structure in which a plurality of elongated bodies including at least one multilayer elongated body whose outer circumference is coated with a coating material are inserted through through-holes formed in a partitioned body that divides a space into a plurality of compartments. A method for constructing an installed fire-resistant compartment structure, comprising:
The fireproof partition structure includes a fire prevention device including a thermal expansion material that expands due to heat, and a long body winding part configured to bind the plurality of long bodies into a bundle,
a fire prevention device placement step of attaching the fire prevention device to the compartment penetrating structure so as to block the gap between the through hole and the plurality of elongated bodies;
Using the long body winding part, a plurality of long bodies are bundled in a region from a predetermined region on one side of the fire prevention device to a predetermined region on the other space side of the through hole in the penetrating direction. and a long body winding step for tightening the covering material so that the bound portion of the covering material restricts radially outward expansion of the covering material by binding. construction method.

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