KR102111844B1 - Porous slab structure with fire protection and / or soundproofing - Google Patents

Abstract

The present invention forms a plurality of pupil grooves in a slab structure of a building formed by curing and curing integrally with reinforcing bars by pouring mortar or concrete to store fire extinguishing powder in the pupil groove so that the fire extinguishing powder is discharged to the outside during fire. To delay diffusion, or to keep the inside of the pupil groove as it is, the noise transmitted through the pupil groove is reduced by canceling the noise between the pupil holes inside the cavity to block the inter-layer noise, or to extinguish the powder in some pupil grooves. Filling and leaving the other pupil grooves at the same time to form a fireproof groove and a soundproof pupil groove at the same time so that fire and soundproof functions can be performed together, or by installing emergency induction lights and lights in some of the pupil grooves to guide in case of fire A perforated slab structure equipped with a fire protection function and / or a sound insulation function to perform functions such as The.

Description

Porous slab structure with fire protection and / or soundproofing}

The present invention relates to a porous slab structure having a fire protection function and / or a sound insulation function, and more specifically, a plurality of pupil grooves in a structure of a slab structure of a building formed by curing curing integrally with reinforcing bars by pouring mortar or concrete. Forming, to store the fire extinguishing powder in the pupil groove so as to discharge the fire extinguishing powder to the outside during a fire to delay the spread of the fire, or to keep the inside of the pupil groove in an empty space to reduce the noise transmitted through the pupil groove. Reduces the noise in the hollow hollow grooves to block interlayer noise, or fills some pupil grooves with fire extinguishing powder and leaves the other pupil grooves at the same time to form a fire cavity for soundproof and a pupil hole for sound insulation to provide fire and sound insulation. To be able to perform together, or to prepare for a fire by installing emergency induction lights and lights in some pupil homes It relates to a perforated slab structure equipped with a fire protection function and / or sound insulation function to perform a function such as guidance.

Multi-storey buildings such as apartments and villas and multi-storey buildings such as office buildings are constructed by a slab structure. When a shock or vibration caused by human walking or falling objects, such as a floor impact sound, is transmitted directly to the floor, a solid radio wave It has the characteristics of being transferred to the lower floors or adjacent households, and when a fire occurs, the fire may spread to the floors of adjacent houses or buildings, causing a large human accident.

In particular, the floor noise between the upper and lower floors of multi-family houses is causing serious social problems, so most houses try to solve the floor noise problem by placing a playroom mat or thick carpet on the floor that can absorb shock to reduce floor noise. In recent years, a method of laying a foamable styrofoam and finishing it with concrete on top of it is being constructed to reduce the floor impact to some extent between the base floor layer and the foamed concrete layer in the construction stage, but simply by applying the foamed styrofoam Has little sound insulation effect and shock damping effect. Therefore, a double-floor structure having an interlayer noise and shock damping effect is recommended as an alternative, but the double-floor structure has a problem that the floor area is reduced because the floor height becomes too high than that of a general floor structure, and the construction is complicated and the material cost Because it is expensive, there is a problem that the construction cost is too expensive.

On the other hand, in order to prevent the spread of fire to neighboring houses or floors in the event of a fire in an apartment house or building, the installation of a firewall or fire door is recommended, and in addition, a fire-fighting, flame-retardant, and fire-resistant functional material is mixed with the building finish Many methods have been proposed to help spread and prevent. As such, there are many proposals regarding the material of the building finishing material for the spread and prevention of fire, but there are few proposals regarding the construction and structure of the slab structure of the structure for the spread and prevention of fire. As a proposal to solve the inter-floor noise problem, it was not a proposal related to the occurrence, spread, or prevention of fire.

Also, places built with cement, such as road tunnels, railroad tunnels, or vertical vents in each tunnel, suffer from a lot of fire or noise. In such road tunnels or railroad tunnels, the fire spreads quickly in the event of a fire. In addition, since traffic is impervious and a large road is delayed, there is an urgent need for the fire to be extinguished early in places such as tunnels, and guidance of emergency routes to guide emergency routes in the event of a fire is very demanding. However, there has been a problem in that facilities for extinguishing or guiding such fires in the early stage have not been proposed so far.

Republic of Korea Registered Patent No. 10-0798892 Republic of Korea Registered Patent No. 10-1784512 Republic of Korea Registered Patent No. 10-1623013 Republic of Korea Registered Patent No. 10-0445672

The object of the present invention is to solve the above-mentioned problems, by forming mortar or concrete and forming a cavity groove composed of a plurality of grooves in a slab structure formed by hardening integrally with a reinforcing bar, and the fire extinguishing powder therein in the pupil groove For the purpose of fire prevention home, if the internal temperature rises above a certain temperature during a fire, the fire extinguishing powder is automatically discharged to the outside to delay the spread of fire and fire, and the pupil groove is left inside as an empty space. For the purpose of soundproofing grooves, the noise transmission is canceled out, and in some pupil grooves, emergency induction lights and lights are installed to provide emergency guidance for emergency evacuation, etc., and the structure of the slab structure is simple. Construction, and the slab is continuously connected to the top and bottom. It is to provide a porous slab structure having a fire protection function and / or a sound insulation function that can be constructed.

The above object of the present invention, the transverse rebar is reinforced in the longitudinal direction of the slab, the longitudinal rebar is orthogonal to the transverse rebar in the width direction of the slab, mortar or concrete is poured and hardened integrally with the transverse rebar and longitudinal rebar The plurality of pupil grooves are formed on the front side of the slab, one side closed and the other side open and spaced apart by a certain distance, and the pupil groove stores fire extinguishing powder therein to perform the function of a fire prevention groove, or The pupil groove is a soundproof groove, the inside of which is formed as an empty space, and is achieved by a porous slab structure having a fire protection function and / or a sound insulation function.

Preferably, the pupil groove is characterized in that it is formed of a pillar having a frusto-conical shape with a wide lower portion and a narrow upper portion.

Preferably, the extinguishing powder stored inside the pupil groove is stored inside the capsule and stored inside the pupil groove, and when the lower portion of the capsule rises above a certain temperature, the internally stored extinguishing powder is discharged to the outside. It characterized in that the capsule film to be formed.

Preferably, the pupil groove is characterized in that an empty space is formed inside the structure of the soundproof groove.

Preferably, the pupil groove is characterized in that an emergency induction lamp and an illumination lamp are installed therein in the structure of the illuminator.

The perforated slab structure provided with the fire protection function and / or the sound insulation function according to the present invention has fire extinguishing powder stored in the inside of a plurality of pupil grooves formed on the front surface of the slab structure, so that fire is performed when a fire home function is to be performed. When the temperature near the fireproof home rises above a certain temperature, the capsule film at the bottom of the capsule that stores the fire extinguishing powder melts to discharge the extinguishing powder to the outside, thereby extinguishing the fire early and delaying the spread of the fire. , A plurality of pupil grooves formed on the front surface of the slab structure is formed as an empty space, and when performing a function as a soundproof groove, it suppresses and blocks the transmission of noise to exert an effect of reducing noise, and the slab structure In case of fire by installing emergency induction and lighting lamps in some of the pupil grooves formed on the front of the The emergency induction lamp and the lighting lamp are lit to exert the effect of promptly evacuating people to the outside according to the guidance of the emergency induction lamp and the lighting lamp, and the structure of the porous slab structure is simple, so it is easy to construct and at a low cost. It has excellent effects such as exerting.

1 is a front perspective view of a porous slab structure having a fire protection function and / or a sound insulation function according to a first embodiment of the present invention.
2 is a front view of a porous slab structure provided with a fire protection function and / or a sound insulation function according to the first embodiment of the present invention.
Figure 3 is a front view schematically showing the reinforcement state of the transverse reinforcing bar and the longitudinal reinforcing bar in the porous slab structure provided with a fire protection function and / or a sound insulation function according to the first embodiment of the present invention.
4 is a schematic cross-sectional view taken along line II of FIG. 2.
5 is a schematic cross-sectional view taken along line II-II of FIG. 3;
6 (a), (b) is an enlarged view of an enlarged cross-section and internal position of the capsule of FIG. 4, and (c) is an enlarged view of an enlarged cross-section of the soundproof groove of FIG. 4.
7 (a), (b), and (c) schematically illustrate the structure of the lower front, middle, and upper surfaces of the porous slab structure equipped with the fire protection and / or sound insulation according to the first embodiment of the present invention. State diagram represented by.
FIG. 8 is a front view of a porous slab fabrication plate for forming a fire cavity groove for soundproofing, a cavity groove for sound insulation, and a pupil groove for lighting of a porous slab structure equipped with a fire protection function and / or a sound insulation function according to the first embodiment of the present invention. .
9A and 9B are schematic cross-sectional views taken along lines III-III and IV-IV of FIG. 8.
10 (a), (b), and (c) schematically illustrate the structure of the lower front, middle, and upper surfaces of the porous slab structure equipped with the fire protection and / or sound insulation according to the second embodiment of the present invention. State diagram represented by.
Fig. 11 is a schematic cross-sectional view taken along line VV in Fig. 10B.
Fig. 12 is a schematic cross-sectional view taken along line VI-VI in Fig. 10B.
FIG. 13 is a front view of a porous slab fabrication plate for forming a fire cavity for soundproofing, a cavity for soundproofing, a cavity for lighting, and a cavity for lighting of a porous slab structure provided with a fire protection function and / or a sound insulation function according to a second embodiment of the present invention .
14A and 14B are schematic cross-sectional views taken along lines VII-VII and VIII-VIII of FIG. 13.
15 is a cross-sectional view schematically showing another modified example of the sound insulation pupil groove in the second embodiment of the present invention.

Hereinafter, a porous slab structure equipped with a fire protection function and / or a sound insulation function according to the first embodiment of the present invention will be described with reference to the accompanying drawings.

The porous slab structure 100 (referred to as a 'porous slab structure' for convenience of description below) equipped with a fire protection function and / or a sound insulation function according to the first embodiment of the present invention, as shown in FIGS. 3 to 5, Transverse rebars (S1) and longitudinal rebars (S2) that are reinforced in the longitudinal and width directions of the slab, and mortar or concrete that is cured integrally with the transverse reinforcing bars (S1) and longitudinal rebars (S2) to form a rectangle ( C) (hereinafter referred to as 'concrete' for convenience of explanation).

The transverse reinforcing bar S1 of the porous slab structure 100 according to the first embodiment of the present invention is reinforced in the longitudinal direction of the slab, and the longitudinal reinforcing bar S2 is orthogonal to the transverse reinforcing bar S1 in the width direction of the slab. In order to form a conventional slab structure, it is the same as the configuration in which the reinforcing bars are orthogonally reinforced in the longitudinal and transverse directions and concrete is poured therein.

In the porous slab structure 100 according to the first embodiment of the present invention, a plurality of pupil grooves 10 are spaced apart at a predetermined distance from each other on the front surface of the slab. The pupil groove 10 has a structure in which one end of the inside is closed and the other end is formed to be open, so that the pupil groove 10 is not exposed to the outside of the porous slab structure 100. The shape is formed by a pillar of a truncated cone shape with a wide lower end and a narrow lower end. In the embodiment of the present invention, the pupil groove 10 is exemplified as being formed as a truncated column of a circular conical part, but the shape may be formed of a polygonal column such as a triangular prism or a quadrangular prism. There is no.

The pupil groove 10 of the porous slab structure 100 according to the first embodiment of the present invention, the fire prevention groove 10a for performing fire prevention function in the longitudinal direction of the slab and the fire prevention groove 10a And a plurality of soundproof pupil grooves 10b for soundproofing adjacent to each other are formed, but the pupil groove 10 may be formed only of fireproof pupil grooves 10a or soundproof pupil grooves 10b. ) Or may be formed together with a fireproof groove 10a for fire prevention and a pupil groove 10b for sound insulation as in the present embodiment.

The pupil groove 10a for fire prevention, where the pupil groove 10 functions as a fire groove, consists of an empty space inside, a capsule in which the digestive powder 40 and the digestive powder 40 to be described later are embedded. 50 is stored. The fire hole for fire (10a) is illustrated as being formed of a truncated conical column of a circular shape, but there is no limitation on the shape.

The pupil groove 10 for the sound insulation groove 10b, which functions as a soundproof groove, is installed to be spaced apart from the fire pupil hole 10a for fire protection and has the same shape as the fire pupil groove 10a. It is formed of. Therefore, as the interior of the soundproof pupil groove 10b is made of an empty space, the space of the hollow soundproof pupil groove 10b can be reduced by canceling the transmitted noise and impact noise, so that the noise between the floors and the shock between the floors can be reduced. This reduces the sound insulation function. The soundproof pupil groove (10b) is exemplified to be formed of a truncated cone column of a circular shape, but there is no limitation on the shape.

The cavity groove 10 of the porous slab structure 100 according to the first embodiment of the present invention is a plurality of spaced-apart pupils 10b for sound insulation between the soundproof cavity grooves 10b to the center of the slab. It may further include a lighting pupil groove (10c), the lighting pupil groove (10c) is formed in a cylindrical shape so that the front and rear surfaces of the slab communicate with each other, the inside of the lighting pupil groove (10c) emergency induction lamp (60) And a lighting lamp 61 is installed. The emergency induction lamp 60 serves as a guide lamp to guide people to evacuate to the outside in the event of a fire, and the lighting lamp 61 provides lighting. The conduit 70 for applying power to the emergency induction lamp 60 and the lighting lamp 61 is piped to branch into the interior of the lighting pupil groove 10c.

The porous slab structure 100 according to the first embodiment of the present invention includes a fire extinguishing groove 40 in which the extinguishing powder 40 capable of suppressing or delaying a fire at the time of fire is embedded in the capsule 50 described later. 10a). The fire extinguishing powder 40 is capable of extinguishing the cooling, suffocating, and suppressing actions by the gas generated by the chemical reaction of the extinguishing powder drug, and is a sodium bicarbonate powder or powder that is the extinguishing powder of the powder BC fire extinguisher. Digestion powders, such as the first ammonium phosphate powder, which is the digestion powder of the ABC fire extinguisher, may be applied, and there is no limitation as long as it is a digestion powder capable of exerting the above-described digestion effect.

The porous slab structure 100 according to the first embodiment of the present invention is provided with a capsule 50 to embed the extinguishing powder 40 so that it can be stored inside the fire cavity 10a for fire prevention. The capsule 50 is formed of a metal or plastic, and is formed in a shape corresponding to the shape of the fire cavity for fire 10a. In the embodiment of the present invention, since the pupil hole 10a for fire prevention is formed in the shape of a truncated cone pillar of the lower light negotiation, the capsule 50 is also formed in the shape of a truncated cone pillar of the lower optical agreement, thereby providing the fire pupil for the fire prevention. It may be stored in the interior of the groove (10a). The capsule film 51 is formed on the front surface of the capsule 50, so that the digested powder 40 can be safely embedded inside the capsule 50 without flow.

When the room temperature rises above a certain temperature due to a fire, the capsule membrane 51 is removed while the capsule membrane 51 is melted, so that the fire extinguishing powder 40 embedded in the capsule 50 is moved to the outside. It is possible to perform fire prevention functions such as initial suppression of fire and delay of diffusion by allowing discharge. The capsule film 51 according to the first embodiment of the present invention is removed while being melted when the room temperature rises to 65-70 ° C., so that the extinguishing powder 40 can be quickly discharged to the outside of the capsule 50. So that the capsule film 51 is made of a paraffin material. Particularly, the most important reason that paraffin is applied as the material of the capsule film 51 of the present invention is that gelatin, which is usually used as a material of the capsule film, has a melting point formed at a temperature of about 35 ° C, so that food or medicines that are refrigerated or frozen are stored. Although it is known as the most commonly used material in the field, the temperature of about 35 ° C is lower than the highest temperature in summer in most regions of Korea, so there is a high risk of natural melting, so the melting point temperature range is 45 It will be said that paraffin having a condition of ~ 65 ° C is an optimal material that can be applied to the capsule film 51 according to the present invention.

The capsule film 51, as shown in Figure 6, is arranged to be inserted into the inside of the fire prevention pupil groove (10a) to form a part of the capsule 50, the fire prevention pupil groove (10a) Stored inside. When the capsule membrane 51 is disposed deeper than the front surface of the fire hole 10a for fire prevention, and the capsule 50 is arranged inside the fire hole for fire 10a, the fire hole for fire prevention ( Since an empty space is formed in the lower portion of 10a), the empty space exerts a soundproofing effect that reduces interlayer noise.

In the process of forming the porous slab structure 100 according to the first embodiment of the present invention, first, a predetermined number of transverse reinforcing bars S1 and longitudinal reinforcing bars S2 are reinforced to suit the slab size. The transverse reinforcement (S1) is reinforced in the longitudinal direction of the slab between the formation positions in consideration of the formation position of the pupil groove 10 formed in the porous slab structure 100. The transverse reinforcing bar (S1) has two reinforcing bars, one for the upper and lower parts of the slab, but the quantity can be adjusted as needed. The longitudinal reinforcing bar (S2) is bent orthogonally backed by bending as it surrounds the transverse reinforcing bar (S1) in the width direction of the slab. The slab structure is formed through the curing process by pouring concrete (C) later into the space between the transverse rebar (S1) and the longitudinal rebar (S2).

When the reinforcing process of the transverse reinforcing bar S1 and the longitudinal reinforcing bar S2 is completed, next, the porous slab production plate 80 shown in FIG. 8 is disposed under the transverse reinforcing bar S1 and the longitudinal reinforcing bar S2. . The porous slab production plate 80 is for forming the slab structure of the first embodiment, as shown in FIGS. 8 and 9 (a) and (b), the pupil groove ( 10) a plurality of fire-resistant pupil groove pillars 81, soundproof pupil groove pillars 82, and lighting pupil groove pillars 83 are formed to protrude respectively. As the space where the pupil groove pillar 81 for fire prevention, the pupil groove pillar 82 for soundproof groove, and the pupil groove pillar 83 for lighting are disposed, concrete (C) is not poured into the first embodiment of the present invention. According to the perforated slab structure 100, the fire-reducing pupil groove 10a, the soundproof pupil groove 10b, and the lighting pupil groove 10c are formed.

When the arrangement process of the perforated slab production plate 80 is completed, concrete (C) is poured next, and when the forming process of the porous slab structure 100 is completed by pouring and curing the concrete (C) as described above, the next porous Removing the slab plate 80, placing the capsule 50 with the fire extinguishing powder 40 inside the fire cavity 10a for fire prevention, and applying power to the upper portion of the pupil groove 10c for lighting The conduit pipe 70 is branched, and the capsule and lamp installation process for installing the emergency induction lamp 60 and the lighting lamp 61 operating with the power supplied from the conduit 70 is performed.

When the installation process of the capsule and the back is completed, a finishing surface forming process of forming the finishing surface 90 to the upper portion of the porous slab structure 100 is performed. The finishing surface 90 may function as an outer surface of each floor of the building.

The perforated slab structure 100 '(hereinafter referred to as' porous slab structure' for convenience of description) provided with a fire protection function and / or sound insulation function according to a second embodiment of the present invention is as shown in FIGS. 10 to 12. , Transverse rebar (S1) and longitudinal rebar (S2) that are reinforced in the longitudinal and width direction of the slab, and mortar or concrete (C) cast to be formed by being integrally cured with the transverse rebar (S1) and longitudinal rebar (S2) (Hereinafter referred to as 'concrete' for convenience of description), and is the same as the first embodiment described above.

However, the difference between the porous slab structure 100 'according to the second embodiment of the present invention and the porous slab structure 100 according to the first embodiment described above is the porous slab structure 100 according to the first embodiment described above. ), The plurality of pupil grooves 10 have the same height, whereas the plurality of pupil grooves 10 and 10 'of the porous slab structure 100' according to the second embodiment have different heights. It is only different in that it is.

However, despite such differences, all technical configurations according to the second embodiment of the present invention are the same technical configuration in which the organic coupling relations between the first embodiment, the functions of the configurations, and the configurations are the same, and thus only briefly about the differences. I will explain. In addition, only the components having a differentity are given separate reference numerals, and the same components as those in the first embodiment use the same reference numerals.

10 to 12, the fire prevention pupil groove 10a formed on the line VV of FIG. 10 has the same height as the fire prevention pupil groove 10a for fire prevention according to the first embodiment ( 10a) and the soundproof pupil grooves 10b and 10b 'are fire-resistant pupil grooves 10b having the same height as the first embodiment, and soundproof pupil grooves 10b' having a smaller height are formed side by side. , The fire hole for fire (10a ') formed on the line VI-VI, which is directly above or immediately below the line VV of FIG. 10, is a fire hole for fire having a smaller height than the fire hole for fire (10a) according to the first embodiment. The groove 10a 'is formed and the soundproof pupil grooves 10b and 10b' have the same height as the first embodiment of the fireproof pupil groove 10b and the soundproof pupil groove 10b 'having a smaller height. It is formed, but is formed to have a different height from the fire hole for fire (10b, 10b ') on the VV line is formed up and down.

Therefore, the fire prevention grooves 10a and 10a 'for fire prevention according to the second embodiment are formed to have different heights from the fire prevention grooves 10a' and 10a for fire prevention adjacent to each other. According to the soundproof pupil grooves (10b, 10b ') are formed to have different heights from the soundproof pupil grooves (10b', 10b) formed adjacent to the left and right and up and down, the fireproof groove for the fire of the first embodiment (10a) and the soundproof pupil groove (10b), if compared with the structure formed to have the same height, the fireproof pupil groove (10a, 10a ') and the soundproof pupil groove (10b, 10b) according to the second embodiment ') Is a configuration that differs only in the configuration formed by the pupil holes 10a and 10a' for soundproofing and the pupil grooves 10b and 10b 'for soundproofing having the same height in the diagonal direction, whether the height is high or low. .

At this time, the reason that the pupil grooves 10 are formed to have different heights by forming the fire pupil grooves 10a 'and the soundproof pupil grooves 10b' having relatively small heights are various heights of the slab structures to be arranged. This is to enable height adjustment of the slab structure in consideration of tensile strength and flexural strength according to.

On the other hand, the soundproof pupil groove 10b 'according to the second embodiment is applied in the form of a truncated cone column, but is a modified embodiment, as shown in FIG. 15, the cross section from the bottom to the top of the stairs form It may be formed in the shape of a groove gradually narrowing. The soundproof pupil groove 10b 'formed in such a shape can more effectively cancel the interlayer noise transmitted to the upper portion, thereby making it possible to more effectively cancel and reduce interlayer noise transmission.

The process of forming the porous slab structure 100 'according to the second embodiment of the present invention is the same as the process of forming the porous slab structure 100 according to the first embodiment described above, however, shown in FIG. 13 Since only the process of arranging the porous slab production plate 80 'in place of the porous slab production plate 80 of the first embodiment is a different process, the porous slab structure according to the first embodiment described above to avoid duplication of description ( 100) will be replaced with a description of the process of forming.

However, the difference between the porous slab production plate 80 'according to the second embodiment and the porous slab production plate 80 according to the first embodiment is the porous slab production plate 80' according to the second embodiment. Fireproof pupil groove pillars (81,81 '), the soundproof pupil groove pillars (82,82') formed in) have the same height as the above described first embodiment fireproof pupil groove pillar (81) and soundproof pupil The groove pillar 82 and the fire-resistant pupil groove pillar 81 'and the sound-proof pupil groove pillar 82' having a smaller height are arranged to be disposed one by one, so that the height is high or low. In the direction, only the structures formed of the fire-reducing pupil groove pillars 81 and 81 'and the fire-reducing pupil groove pillars 82 and 82' having the same height are different configurations.

The perforated slab structure 100, 100 'equipped with a fire protection function and / or a sound insulation function according to the present invention is not limited by the above-described embodiments and the accompanying drawings, and is replaced within a range not departing from the technical spirit of the present invention and It will be apparent to those skilled in the art that the present invention can be changed to other equivalent embodiments.

The perforated slab structure equipped with the fire protection function and / or the sound insulation function according to the present invention is used in industry because it is possible to repeatedly produce and construct the same product in the technical field of producing a slab structure widely used in general construction sites. It would be a potential invention.

100, 100 ': porous slab structure with fire protection and / or sound insulation
S1: Transverse rebar S2: Longitudinal rebar
C: mortar or concrete
10, 10 ': Pupil groove 10a, 10a': Fire pupil for fire prevention
10b, 10b ': Soundproof pupil groove 10c: Lighting pupil groove
40: digested powder
50: capsule 51: capsule film
60: emergency induction light 61: lighting
70: conduit 80,80 ': perforated slab production plate
81,81 ': Pupil groove pillar for fire protection 82,82': Pupil groove pillar for sound insulation
83: Column of the pupil hole for lighting 90: Finishing surface

Claims (5)

A porous slab structure provided with a fire protection function and / or a sound insulation function,
The transverse rebar is reinforced in the longitudinal direction of the slab, the longitudinal reinforcing bar is orthogonal to the transverse reinforcing bar in the width direction of the slab, and mortar or concrete is poured and formed by being integrally cured with the transverse reinforcing bar and the longitudinal reinforcing bar,
On the front surface of the slab, a plurality of pupil grooves having a polygonal shape with a lower lower part and a narrower upper part are formed to be spaced apart at a predetermined distance such that one side is closed and the other is open,
The pupil groove is spaced apart from the pupil groove, and a plurality of pupil holes for lighting are formed in communication with a conduit and an emergency induction lamp and a lighting lamp at the bottom,
A portion of the pupil groove is embedded inside the capsule and stored inside the pupil groove, and when the temperature rises above a certain temperature on the front side of the capsule, the melting temperature is 45 ° C. To store the digested powder consisting of a capsule film formed of paraffin having a range of 65 ℃,
Another part of the pupil groove is a porous slab structure provided with a fire protection and / or sound insulation, characterized in that the inside is formed of an empty space. delete delete delete delete

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