JP6816073B2 - Construction method for fireproof structural sleeves, buildings and fireproof structures - Google Patents

Description

The present invention relates to, for example, a sleeve for a fireproof structure for ensuring fireproof performance for a penetrating portion such as a pipe or a cable in a compartment, and a method for constructing a building or a fireproof structure using the sleeve.

In a building or the like, pipes and cables (hereinafter, may be simply referred to as long members) may be laid in each room partitioned by a compartment. In this case, for example, if a fire breaks out in one of the rooms, the fire may spread to the entire building along the long member and cause great damage.

For the fireproof structure of the long member penetrating the compartment, for example, a fireproof member in which the thermal expansion member and the foam are housed on the inner surface side of the resin main body is used (for example, Patent Document 1). ).

On the other hand, when laying a cable or pipe so as to penetrate a steel beam or the like, a sleeve attached to the through hole is used (for example, Patent Document 2).

Japanese Unexamined Patent Publication No. 2016-12345 Japanese Unexamined Patent Publication No. 10-231960

When a through hole is formed in a wall or the like, the refractory member of Patent Document 1 can be directly attached to the through hole as it is, and the workability is also good. However, in the case of a hollow wall in which gypsum boards or the like are attached to both sides of a steel beam, it is necessary to use a sleeve as shown in Patent Document 2. In this case, it is necessary to fix the sleeve to the hollow wall and attach a refractory member or a refractory putty to the sleeve.

Fireproof compartment penetration treatment using such a fireproof structure requires approval from the Minister of Land, Infrastructure, Transport and Tourism. This certification not only specifies the materials used, but also the construction method. For example, the amount of fireproof member protruding from the surface of gypsum board is also specified.

Here, in such a fireproof compartment penetration treatment, first, an electric, water, gas contractor or the like lays pipes and wiring, and a fireproof member or the like is attached to the compartment. The carpenter then installs gypsum board. As described above, since the amount of protrusion of the refractory member from the gypsum board is determined, the carpenter needs to make this adjustment when installing the gypsum board.

However, since the refractory member is attached first, even if this position can be finely adjusted, it is difficult to make a large correction of the position. However, it is not efficient for an electric contractor or the like to go to the site again and adjust the position when installing the gypsum board.

In addition, the final amount of protrusion of the refractory member also differs depending on the type of wall and the fireproof member used, so the operator confirms the instruction manual each time and measures the amount of protrusion, which is complicated. It becomes.

The present invention has been made in view of such a problem, and provides a sleeve for a fireproof structure capable of easily constructing a desired fireproof structure, and a method for constructing a building and a fireproof structure using the sleeve. The purpose.

In order to achieve the above-mentioned object, the first invention is a sleeve used for a fireproof structure provided in a compartment and holding a fireproof member, and the sleeve has a cross section having a split portion in a part in the circumferential direction. It has a substantially C shape, and when the split portion is closed, it becomes a substantially tubular shape, and a mark is attached to the outer peripheral surface of the sleeve, and the mark is the first mark indicating the installation position of the compartment with respect to the beam. It has a second mark indicating a protrusion allowance from a plate member arranged on at least one of the beams, and at least a plurality of the marks are provided according to the refractory member or the building structure used. It is a sleeve for fireproof structure.

It is desirable that connecting portions are formed on both edge portions of the split portion, and the sleeve can be maintained in a tubular state by connecting the connecting portions to each other.

A plurality of the marks formed according to the refractory member or the building structure used are arranged in the circumferential direction of the sleeve, and the first mark and the second mark of the respective marks are in the longitudinal direction of the sleeve. It is desirable to arrange it on a straight line formed along the above.

It is desirable that the type display indicating the fireproof member or building structure to be used is arranged closer to the second mark with respect to the first mark.

It is desirable that a diameter-expanded portion is formed at the end of the sleeve on the second mark side.

It is desirable that the mark is formed by laser machining on the surface of the metal sleeve.

According to the first invention, a plurality of first marks indicating the position with respect to the beam and a second mark indicating the protrusion allowance from the plate member are provided according to the type of the section, the fireproof member, etc., and therefore, each type is provided. The sleeve can be placed in the appropriate position accordingly. At this time, since there are marks for positioning on the beam and positioning on the plate member, the sleeves can be surely installed in an arrangement according to each work even if the operator is different. In addition, it is possible to handle a plurality of types of compartments and the like with a single sleeve.

Further, by forming the connecting portion in the split portion of the sleeve, the tubular shape can be easily formed and the tubular shape can be reliably maintained.

Further, since the first mark and the second mark are arranged on a straight line formed in the longitudinal direction, it is easy to distinguish a plurality of types of marks. For example, when trying to grasp the position by a scale formed in the circumferential direction, it is difficult to distinguish the positions according to the type, and there is a possibility that the scale may be misread, but a straight line formed along the longitudinal direction. By arranging the first mark and the second mark as a set on the top, it is easy to distinguish between the types.

Further, by arranging the type display on the second mark side, it is easy for the operator when installing the plate member to discriminate the type display.

Further, by forming the enlarged diameter portion at the end portion on the second mark side, it is possible to prevent the fireproof member inserted into the sleeve from being damaged and to increase the rigidity of the sleeve.

Further, by forming each mark by laser processing, the visibility and wear resistance are excellent, and the marks do not disappear during molding processing or handling, for example. In addition, it is easy to change the display simply by changing the laser setting.

The second invention is a building provided with a fireproof structural sleeve according to the first invention.

According to the second invention, a building that is easy to construct can be obtained.

A third invention is a method for constructing a fireproof structure using a fireproof structural sleeve according to the first invention, which is used for a step of attaching the sleeve to a long member penetrating a section and a construction target. The mark corresponding to the fireproof member or the building structure is selected, the sleeve is temporarily fixed by aligning the position of the first mark of the selected mark with respect to the beam of the section, and the fireproof member is fixed to the sleeve. A step of arranging a plate member on at least one side of the beam, a step of aligning the second mark with the position of the plate member, and arranging a sealing material between the plate member and the sleeve. It is a construction method of a fireproof structure characterized by including a process.

According to the third invention, since the position of the sleeve can be grasped at the time of fixing to the beam and at the time of attaching the plate member, the work such as correcting the position of the sleeve does not occur again.

According to the present invention, it is possible to provide a sleeve for a fireproof structure capable of easily constructing a desired fireproof structure, a building using the sleeve, and a method for constructing a fireproof structure.

The upper perspective view which shows the sleeve 1 for a fireproof structure. The lower perspective view which shows the sleeve 1 for a fireproof structure. The plan view which shows the mark 7 of the sleeve 1 for a fireproof structure. (A) and (b) are views showing the process of attaching the fireproof structure sleeve 1 to the beam 11. (A) and (b) are diagrams showing the process of attaching the refractory member 17 to the refractory structural sleeve 1. (A) and (b) are views showing a process of fixing the fireproof structure sleeve 1 in a tubular shape, and (c) is an enlarged view of the vicinity of the connecting portion 5. The figure which shows the state which attached the plate member 21. The figure which shows the state which arranged the sealing material 23. The plan view which shows the mark 7 of the sleeve 1a for a fireproof structure.

Hereinafter, embodiments of the present invention will be described in detail. FIG. 1 is an upward perspective view showing the fireproof structure sleeve 1 according to the present embodiment, and FIG. 2 is a downward perspective view showing the fireproof structure sleeve 1. The fireproof structure sleeve 1 is a sleeve used for a fireproof structure provided in a compartment and holds a fireproof member. The fireproof structural sleeve 1 is used for buildings.

The fireproof structure sleeve 1 is made of metal and has a substantially C-shaped cross section having a split portion 3 along the longitudinal direction in a part in the circumferential direction. Connecting portions 5 are formed at both ends in the circumferential direction and at both edges of the split portion 3. One of the connecting portions 5 is a locking claw and the other is a hole, so that the connecting portions 5 can be maintained in a state of being connected to each other. That is, by closing the split portion and connecting the connecting portions 5 to each other, the fireproof structure sleeve 1 can be maintained in a substantially tubular state.

The portion where the connecting portion 5 is formed becomes a substantially flat portion in the circumferential direction, and when the connecting portions 5 are connected to each other, the flat portions overlap each other. Therefore, the connection is easier than in the case where the arc-shaped portions are overlapped with each other. Further, it is desirable that the connecting portions 5 are arranged at a plurality of locations including at least the vicinity of both ends in the longitudinal direction of the fireproof structure sleeve 1.

A diameter-expanded portion 9 is formed at one end of the fireproof structural sleeve 1. The enlarged diameter portion 9 is formed on the side of the second mark 7b, which will be described later. The enlarged diameter portion 9 increases the rigidity of the refractory structure sleeve 1 and prevents damage to the refractory member when the refractory member is inserted.

A mark 7 is attached to the outer peripheral surface of the fireproof structure sleeve 1. FIG. 3 is a diagram showing details of the mark 7. The mark 7 includes a first mark 7a, a second mark 7b, and a type display 7c. The first mark 7a is a mark indicating the position with respect to the beam, which will be described later, the second mark 7b is a mark indicating the protrusion allowance for a plate member such as gypsum board provided on the beam, and the type display 7c is the fire resistance used. It is a display indicating a member or a building structure. That is, at least a plurality of marks 7 are provided according to the refractory member used or the building structure, and the marks 7 are the first mark 7a indicating the installation position of the section with respect to the beam and the plate arranged with respect to the beam. It has a second mark 7b indicating a protrusion allowance from the member.

The first mark 7a, the second mark 7b, and the type indication 7c formed according to the refractory member used and the building structure are formed on the same straight line formed along the longitudinal direction. Further, the marks 7 for each type are arranged so as to be separated from each other in the circumferential direction of the fireproof structure sleeve 1. Further, the type display 7c is arranged on the side closer to the second mark 7b with respect to the first mark 7a. The straight line type may be changed for each type display 7c.

It is desirable that the mark 7 is formed by laser processing on the surface of the metal fireproof structural sleeve 1. By forming by laser processing, the mark 7 is less likely to disappear during molding processing or handling, and the visibility is also excellent. Further, when the content of the mark 7 is changed, the correction can be easily made by changing the setting of the laser machining.

Next, a method of constructing a fireproof structure using the fireproof structure sleeve 1 will be described. FIG. 4A is a diagram showing a state in which a through hole 13 is formed in the beam 11 which is a partition portion, and a long member 15 such as a cable or a pipe is arranged in the through hole 13. The laying work of the long member 15 is performed for each electric, water, and gas contractor who handles the long member 15. The long member 15 may be a plurality of members.

From this state, the fireproof structure sleeve 1 is attached to the long member 15 penetrating the compartment. Since the fireproof structure sleeve 1 has the split portion 3, it can be easily attached to the long member 15.

FIG. 4B is a diagram showing a state in which the fireproof structure sleeve 1 is attached to the long member 15. Here, the worker selects the corresponding type display 7c from the plurality of marks 7 according to the building structure to be constructed and the type of the refractory member used. Further, the fireproof structure sleeve 1 is arranged by aligning the position of the first mark 7a arranged on the same straight line with the selected type display 7c with the center position (web position) of the beam 11 which is a partition portion.

Next, as shown in FIG. 5A, the refractory member 17 is attached to the long member 15. The refractory member 17 is disclosed in, for example, Patent Document 1, and is made of an elastic member having a split portion in the circumferential direction. Therefore, it can be easily attached to the long member 15. From this state, the fireproof member 17 is inserted into the fireproof structure sleeve 1 from the end on the diameter expansion portion 9 side, and the split portion 3 of the fireproof structure sleeve 1 is closed to form a tubular shape.

FIG. 6A is a cross-sectional view showing a state in which the fireproof member 17 (shown by the dotted line) is inserted into the fireproof structure sleeve 1, and FIG. 6B is a state in which the split portion 3 is closed to form a tubular shape. It is sectional drawing which shows. Further, FIG. 6 (c) is an enlarged cross-sectional view of part A of FIG. 6 (b). As described above, connecting portions 5 are formed on both edges of the split portion 3. As shown in FIG. 6C, by locking one locking claw to the other hole, the opposing connection portions 5 are connected to each other, and the fireproof structure sleeve 1 can be maintained in a tubular shape. .. The inner diameter of the fireproof structure sleeve 1 in a tubular shape and the outer diameter of the insertion portion of the fireproof member 17 are substantially the same.

FIG. 5B is a diagram showing a state in which the refractory member 17 is attached to the refractory structure sleeve 1. In this state, the first mark 7a is finely adjusted so as to be arranged at the center position of the beam 11, and the fireproof structural sleeve 1 is temporarily fixed to the beam 11 by the wire 19. The above work is performed by an electric, water, and gas contractor according to the type of long member such as a cable or a pipe.

Before attaching the fireproof member 17, the fireproof structure sleeve 1 may be formed in a tubular shape. Further, the refractory member 17 does not necessarily have to be an elastic member having a split portion, and may be, for example, a refractory putty such as a thermal expansion member. In this case, after fixing the tubular fireproof structure sleeve 1 to the beam 11, a predetermined amount of fireproof putty may be filled inside the fireproof structure sleeve 1 from the end on the diameter-expanded portion 9 side.

Next, as shown in FIG. 7, the plate member 21 is arranged with respect to the beam 11. The following construction is performed by, for example, a carpenter. The plate member 21 is a wall member such as gypsum board. The plate member 21 is pre-processed, and a notch is formed so as to avoid interference with the fireproof structural sleeve 1. The plate member 21 may be arranged on at least one of the beams 11.

Here, it is necessary to secure a numerical value specified when the Minister of Land, Infrastructure, Transport and Tourism approves the protrusion allowance (B in the figure) from the plate member 21. When the plate member 21 is installed, the operator aligns the position of the second mark 7b with the position of the surface of the plate member, and finely adjusts the position of the fireproof structure sleeve 1 as necessary. At this time, since the fireproof structure sleeve 1 is positioned with respect to the beam 11, the position can be adjusted with a slight adjustment.

Next, as shown in FIG. 8, the sealing material 23 is arranged around the fireproof structure sleeve 1 protruding from the plate member 21, and the sealing material 23 is filled in the gap between the fireproof structure sleeve 1 and the plate member 21. .. As a result, the fireproof structure is constructed.

As described above, according to the fireproof structure sleeve 1 according to the present embodiment, the fireproof structure can be easily constructed on the section portion. At this time, since the mark 7 indicating the installation position of the fireproof structure sleeve 1 is formed on the outer periphery of the fireproof structure sleeve 1, the arrangement of the fireproof structure sleeve 1 can be easily grasped.

In particular, since the mark 7 has the first mark 7a indicating the position with respect to the beam 11 and the second mark 7b indicating the protrusion allowance from the plate member 21, when the fireproof structural sleeve 1 is attached to the long member 15. The operator can perform positioning using the first mark 7a, and the operator who installs the plate member 21 only needs to make fine adjustments using the second mark 7b, so that the work can be redone. Work can be done efficiently without occurring.

Further, by providing a plurality of marks 7 according to the type of the section and the type of the fireproof member, one fireproof structure sleeve 1 can correspond to a plurality of types of fireproof structures. At this time, by arranging the type display 7c closer to the second mark 7b side, the type display 7c can be easily visually recognized when the plate member 21 is installed.

Further, by arranging the first mark 7a and the second mark 7b in a straight line in the longitudinal direction, it is easy to identify the mark 7 to be used for each type display 7c. For example, when a plurality of lines are arranged in the circumferential direction to form a scale, it is difficult to distinguish between adjacent scales. However, by arranging a plurality of marks 7 in the circumferential direction, for example, adjacent marks 7 Even when the first marks 7a are formed at positions close to each other in the longitudinal direction, they can be easily identified by arranging the first marks 7a apart from each other in the circumferential direction.

Further, since each mark 7 is formed by laser processing, the mark 7 does not disappear even if there is some rubbing during processing or handling, and the visibility is excellent. It is also easy to change the display content of the mark 7.

Further, by connecting the connecting portions 5, the fireproof structure sleeve 1 can be easily formed into a tubular shape.

Further, by forming the enlarged diameter portion 9 on the insertion side of the refractory member 17, the refractory member 17 can be easily inserted, damage to the refractory member can be suppressed, and the rigidity of the refractory structure sleeve 1 can be increased.

As described above, by arranging the first mark 7a and the second mark 7b in a straight line in the longitudinal direction, it becomes easy to distinguish the mark 7 to be used for each type display 7c, but the type display 7c When the number of is small, the first mark 7a and the second mark 7b may be provided so as to face the circumferential direction. For example, in the fireproof structure sleeve 1a shown in FIG. 9, the first mark 7a and the second mark 7b are formed in the circumferential direction for each type display 7c. Even if the number of types displayed is small and the marks are arranged in the circumferential direction, if they can be easily identified, a line may be provided in the circumferential direction as each mark. In this case, the lines formed in the circumferential direction do not have to be arranged on the entire circumference of the fireproof structure sleeve 1a, and may be, for example, about half a circumference.

Although the embodiment of the present invention has been described above with reference to the attached drawings, the technical scope of the present invention does not depend on the above-described embodiment. It is clear that a person skilled in the art can come up with various modifications or modifications within the scope of the technical ideas described in the claims, and these are naturally within the technical scope of the present invention. It is understood that it belongs.

For example, the partition may be a floor or a ceiling as well as a wall. Further, although the first mark 7a is indicated by a circle and the second mark 7b is indicated by an arrow, the mode of each mark may be another mode. Further, although the type display 7c is distinguished by the type of the building structure and the fireproof member, it may be distinguished by the type of at least one of the building structure and the type of the fireproof member.

1, 1a ………… Fireproof structure sleeve 3 ………… Split part 5 ………… Connection part 7 ………… Mark 7a ………… 1st mark 7b ………… 2nd mark 7c ………… Type display 9 …… … Expanded diameter 11 ………… Beam 13 ………… Through hole 15 ………… Long member 17 ………… Fireproof member 19 ………… Wire 21 ………… Plate member 23 ………… Sealing material

Claims (8)

A sleeve used for the fireproof structure provided in the compartment and holding the fireproof member.
The sleeve has a substantially C-shaped cross section having a split portion in a part in the circumferential direction, and by closing the split portion, it becomes a substantially tubular shape.
A mark is attached to the outer peripheral surface of the sleeve.
The mark has a first mark indicating an installation position of the compartment with respect to a beam and a second mark indicating a protrusion allowance from a plate member arranged on at least one of the beams.
A sleeve for a fireproof structure, characterized in that at least a plurality of the marks are provided depending on the fireproof member or the building structure used. The claim is characterized in that connecting portions are formed on both edge portions of the split portion, and the sleeve can be maintained in a tubular state by connecting the connecting portions to each other. 1. The sleeve for fireproof structure according to 1. A plurality of the marks formed according to the refractory member used or the building structure are arranged in the circumferential direction of the sleeve, and the first mark and the second mark of the respective marks are in the longitudinal direction of the sleeve. The fireproof structural sleeve according to claim 1 or 2, wherein the sleeve is arranged on a straight line formed along the above. The sleeve for a fireproof structure according to claim 3, wherein the type display indicating the fireproof member or the building structure to be used is arranged on the side closer to the second mark with respect to the first mark. The sleeve for a fireproof structure according to any one of claims 1 to 4, wherein an enlarged diameter portion is formed at an end portion of the sleeve on the second mark side. The fireproof structural sleeve according to any one of claims 1 to 5, wherein the mark is formed on the surface of the metal sleeve by laser processing. A building provided with the fireproof structural sleeve according to any one of claims 1 to 6. A method for constructing a fireproof structure using the sleeve for the fireproof structure according to any one of claims 1 to 6.
The process of attaching the sleeve to a long member penetrating the section, and
The mark is selected according to the refractory member used for the construction target or the building structure, the position of the first mark of the selected mark is aligned with the beam of the section, and the sleeve is temporarily fixed. , The process of attaching the refractory member to the sleeve,
A step of arranging the plate member on at least one side of the beam and aligning the second mark with the position of the plate member.
A step of arranging a sealing material between the plate member and the sleeve, and
A method of constructing a fireproof structure, which is characterized by being provided with.

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