JP2007224508A - Refractory panel and boundary wall structure using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refractory panel having sufficient strength and flexural rigidity as the panel, capable of self-sustaining, and installable without using a backing material such as a stud. <P>SOLUTION: This refractory panel 1 is integrally formed by mutually adhering mutual gypsum boards 3 and the gypsum board 3 and a steel plate 2, by arranging a plurality of gypsum boards 3 to be sandwiched between two steel plates 2 and 2. The refractory panel 1 respectively forms an engaging step part 5 in both side end parts in the panel width direction, by particularly dislocating one side steel plate 2 of the refractory panel 1 having the thickness of the gypsum board 3 of 9.5 mm, the gypsum board 3 on the side contacting with this steel plate, the other side steel plate 2 and the gypsum board 3 contacting with this steel plate by a predetermined dimension in the panel width direction. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a fireproof panel composed of a composite panel of a steel plate and a gypsum board, and a building wall structure using the fireproof panel. In addition, a boundary wall shall say the boundary wall of two adjacent houses, for example in a housing complex. The fireproof panel of the present invention is a panel having not only fire resistance but also sound insulation.

  As a conventional fireproof panel, publicly known documents such as patent publications cannot be specifically mentioned. For example, a fireproof panel formed by bonding two relatively thick expensive fiber-reinforced gypsum boards is known. However, since this fireproof panel 1 does not have rigidity and toughness that can stand independently, installation requires a panel base consisting of upper and lower runners and studs erected between them, which is troublesome for on-site construction. In addition to high construction costs, there is a problem that the gypsum board drops off in a short time in the event of a fire, and because the gypsum board is a reinforced boat mixed with inorganic fibers, the board cost is very high, The construction costs were further rising.

  Therefore, the present invention can be self-supporting with sufficient strength and bending rigidity as a panel, can be installed without using a panel base formed of studs, etc., and the construction cost can be reduced. Another object of the present invention is to provide a fire-resistant panel with high fire resistance, which is excellent in sound insulation, is hard to drop off the plaster board in a fire, and can contain the crystal water of the plaster board for a long time. A further object of the present invention is to provide a boundary wall structure that can improve sound insulation and fire resistance by using this fireproof panel.

  Means for solving the above problems will be described with reference numerals in the embodiments described later. The fireproof panel 1 of the invention according to claim 1 includes a plurality of gypsum boards between two steel plates 2 and 2. 3, the gypsum board 3 and the gypsum board 3 and the steel plate 2 are bonded together by an adhesive and integrated with each other.

  A second aspect of the present invention is the fireproof panel according to the first aspect, wherein two gypsum boards 3 having a thickness of at least one gypsum board 3 of 9.5 mm are disposed between the two steel plates 2 and 2. It is characterized by.

  According to a third aspect of the present invention, in the fireproof panel according to the first aspect, two gypsum boards 3 and 3 having a thickness of 9.5 mm are arranged between the two steel plates 2 and 2.

  Claim 4 is the fireproof panel according to any one of claims 1 to 3, wherein one side of the steel plate 2 and one or a plurality of gypsum boards 3 in contact with the steel plate 2 and the other side of the steel plate 2 and One or a plurality of gypsum boards 3 on the contacting side are shifted from each other by a predetermined dimension n in the panel width direction, and engaging step portions 5 are respectively formed at both end portions in the panel width direction.

  Claim 5 is the fireproof panel according to any one of claims 1 to 4, wherein a plurality of gypsum boards 3 sandwiched between both steel plates 2 and 2 are formed by adding in the panel longitudinal direction and / or width direction, respectively. At least one of the plurality of gypsum boards 3 has a joint portion 27 between the extension boards 3a and a panel longitudinal direction and / or a width direction with respect to the junction portions 27 of the other gypsum boards 3 that are in contact with each other. Are formed by being shifted by a predetermined dimension m.

  A sixth aspect of the present invention is the fireproof panel according to any one of the first to fifth aspects, wherein a plurality of bolt mounting holes 6 are provided at both ends in the longitudinal direction of the panel.

  According to a seventh aspect of the present invention, in the fireproof panel according to the sixth aspect, each bolt mounting hole 6 is provided with a through hole 30 in the gypsum board 3 and a pilot hole in the steel plates 2 and 2 on both sides as shown in FIG. 31, 32, and a bolt head immersion portion 33 and a bolt insertion hole 34 formed by drawing the peripheral portion 31 a of one of the lower holes 31 and joining the peripheral portion 32 a of the other lower hole 32. It is characterized by comprising.

  According to an eighth aspect of the present invention, in the fireproof panel according to the sixth aspect, each bolt mounting hole 6 has a through-hole 36 provided in the gypsum board 3 and an inwardly narrow flange portion 37 on one end side as shown in FIG. The other end of the steel tube 2 is inserted into the opposite end side, and the lower steel plates 2 and 2 are concentrically provided with the lower holes 40 and 41, respectively. A bolt head immersion portion 42 and a bolt insertion hole 43 formed by joining the respective lower hole peripheral portions 40a and 41a to the inwardly narrow flange portion 37 and the inwardly wide flange portion 38 of the sheath tube 39, It is characterized by comprising.

  The invention according to claim 9 is a boundary wall structure using the refractory panel 1 according to any one of claims 1 to 8, and the two refractory panels 1 and 1 are arranged side by side with a certain space S therebetween. It is characterized by letting it be.

  Claim 10 is the boundary wall structure according to claim 9, wherein the upper and lower ends of the fireproof panel 1 are attached to the lower horizontal member such as the base 8 made of H-shaped steel using the bolt mounting holes 6. A bolt 11 is fixed to the mounting hardware 10.

  Claim 11 is the boundary wall structure according to claim 9 or 10, wherein when connecting a plurality of the fireproof panels 1 in the panel width direction, the engagement step portions 5 formed at both side ends of each fireproof panel 1 are provided. The fireproof panels 1 are joined to each other by being engaged with each other.

  A twelfth aspect is characterized in that in the boundary wall structure according to any one of the ninth to eleventh aspects, a sound absorbing material and / or a heat insulating material is inserted into the space S.

  Claim 13 is the boundary wall structure according to any one of claims 9 to 12, wherein the gypsum board 13 is attached to the outer wall surface of each fireproof panel 1 with a tapping screw 26 or a combination of the tapping screw 26 and an adhesive. It is characterized by.

  The effect of the invention by the above solution will be described with reference numerals in the embodiments described later. The fireproof panel according to the first aspect of the present invention has two steel plates 2 so as to sandwich a plurality of gypsum boards 3. The gypsum board 3 is disposed on both sides, and the gypsum board 3 and the gypsum board 3 and the steel plate 2 are integrated with each other by an adhesive, and the two steel plates 2 on both sides and a plurality of gypsum interposed therebetween. Since the board 3 becomes a composite panel integrated with each other, sufficient strength and bending rigidity as a building panel is secured, and the panel itself can be self-supporting. Therefore, when using the fireproof panel 1 as a wall, A panel base made of studs or the like is not necessary, and the work at the site can be simplified, improving the workability. Further, by sandwiching a plurality of gypsum boards 3 between two steel plates 2, it is possible to prevent the gypsum board 3 from collapsing or falling off in the event of a fire. Crystallized water can suppress the temperature rise over a long period of time and exhibit excellent fire resistance. In particular, the gypsum board 3 used in the fireproof panel 1 of the present invention is not a reinforced gypsum board or a fiber-mixed calcium silicate board, but a very ordinary gypsum board made of calcium sulfate. Therefore, the panel manufacturing cost is reduced.

  According to the fireproof panel of the invention according to claim 2, two gypsum boards 3 and 3 are arranged between the two steel plates 2 and 2, and at least one of them has a thickness of 9.5 mm. The sound insulation performance can be effectively increased as compared with the case where the fireproof panel 1 having the same panel thickness is formed by using one gypsum board having a large thickness, for example, 15 mm. That is, the thick gypsum board 3 having a plate thickness of 15 mm or more is difficult to form a wall having high sound insulation performance because the coincidence frequency is in the target area of daily noise (for example, 250 Hz to 2 KHz). By using the gypsum board 3 of which at least one of the gypsum boards 3 and 3 has a thickness of 9.5 mm, the coincidence frequency deviates from the target area of daily noise, and a wall with high sound insulation performance can be formed. It becomes. Moreover, since the gypsum board 3 having a plate thickness of 9.5 mm is extremely inexpensive, the manufacturing cost of the fireproof panel 1 is further reduced.

  The fireproof panel of the invention according to claim 3 has a large thickness because two relatively thin gypsum boards 3 having a thickness of 9.5 mm are arranged between the two steel plates 2 and 2. For example, the sound insulation performance can be effectively improved as compared with the case where the fireproof panel 1 having the same panel thickness is formed by using one gypsum board of 15 mm. That is, the thick gypsum board 3 having a plate thickness of 15 mm or more is difficult to form a wall having high sound insulation performance because the coincidence frequency is in the target area of daily noise (for example, 250 Hz to 2 KHz). When a plurality of relatively thin gypsum boards 3 are used in an overlapping manner, the coincidence frequency deviates from the target area of daily noise, so that a wall with high sound insulation performance can be formed. Therefore, since the two gypsum boards 3 are both 9.5 mm thick gypsum boards, the sound insulation performance of the fireproof panel 1 can be further enhanced, and the manufacturing cost can be further reduced.

  According to the fireproof panel of the invention according to claim 4, the steel plate 2 on one side and one or more gypsum boards 3 in contact with the steel plate 2, the steel plate 2 on the other side, and one or more on the side in contact therewith Since a plurality of gypsum boards 3 are shifted from each other by a predetermined dimension n in the panel width direction and the engaging step portions 5 are formed at both ends of the panel width direction, a plurality of fireproof panels 1 are connected in the width direction. In this case, by engaging the engaging step portions 5 of the fireproof panels 1 with each other, the panel strength at the joint portion 14 which is a connection portion between the panels 1 and 1 does not decrease, and the joint portion 14 gaps can be effectively blocked, and the fireproof performance and sound insulation performance can be enhanced.

  According to the fireproof panel of the invention according to claim 5, the plurality of gypsum boards 3 sandwiched between the steel plates 2 and 2 are formed by adding them in the panel longitudinal direction and / or the width direction, respectively. At least one of them is formed by shifting the joint portion 27 between the extension boards 3a by a predetermined dimension m in the panel longitudinal direction and / or the width direction with respect to the joint portion 27 of the other gypsum board 3 in contact with the extension board 3a. Since it forms, the rigidity of the fireproof panel 1, fireproof performance, and sound insulation performance are not impaired by the junction part 27, but those performances are maintained effectively.

  According to the fireproof panel of the invention according to claim 6, since a plurality of bolt mounting holes 6 are provided at both ends in the longitudinal direction of the panel, when the fireproof panel 1 is mounted, the upper and lower ends of the fireproof panel 1 are By using the bolt mounting hole 6, for example, the bolt 11 can be easily fixed to a mounting hardware 10 mounted on a lower horizontal member such as a base made of H-shaped steel. It can be used as a suspension hole for panel suspension by a crane or the like during installation.

  If the bolt mounting hole 6 according to claim 6 is configured as described in claim 7 and claim 8, the bolt mounting hole 6 can be easily formed, and thus the fireproof panel 1 can be easily manufactured. Thus, the cost can be reduced.

  According to the boundary wall structure of the invention according to claim 9, the two fireproof panels 1, 1 juxtaposed across a certain space S are panels that can stand independently, and between the fireproof panels 1, 1. Since there is no connecting portion that serves as a so-called sound bridge for transmitting sound from one fireproof panel 1 to the other fireproof panel 1 except for the upper and lower ends, the sound insulation is improved. Incidentally, in a conventional fireproof panel that requires a panel base such as a stud or a wooden cross for mounting the panel, the sound insulation is reduced because the stud or the wooden cross constitutes the sound bridge.

  Further, according to this boundary wall structure, the space portion S is formed between the double walls formed by the two fireproof panels 1, 1, thereby improving the sound resistance and the fire resistance. In addition, each fireproof panel 1 is a self-supporting panel, and a panel base such as a stud is not interposed in the space S between the double walls, so that it is stretched between the pillars standing on the base and the pillars. There is no interference with the structural material such as braces, the accommodation is improved, and the temperature of the space portion S is equal to or lower than a predetermined temperature, so that the fire-resistant coating of the steel material such as the struts located in the space portion S is omitted. be able to.

  According to the boundary wall structure of the invention of claim 10, the mounting hardware in which the upper and lower ends of the fireproof panel 1 are attached to the lower horizontal member such as the base 8 made of H-shaped steel using the bolt mounting holes 6. Since the bolts 11 are fixed to 10, both fireproof panels 1, 1 can be easily and accurately attached at a fixed interval, and the construction efficiency can be improved.

  According to the boundary wall structure of the invention according to claim 11, when connecting a plurality of the fireproof panels 1 in the panel width direction, the engaging step portions 5 formed at both side ends of each fireproof panel 1 are engaged with each other. Since the fireproof panels 1 are joined to each other, the panel strength at the joint portion 14 which is the connection portion between the fireproof panels 1 and 1 does not decrease, and the gap between the joint portions 14 is effectively blocked, Fire resistance and sound insulation performance can be improved.

  According to the boundary wall structure of the invention related to claim 12, by inserting the sound absorbing material and / or the heat insulating material into the space S, the fire resistance performance and / or the sound insulation performance of the boundary wall can be greatly improved.

  According to the boundary wall structure of the invention of claim 13, sound insulation and fire resistance can be achieved by attaching the gypsum board 13 to the wall outer surface of each fireproof panel 1 with a tapping screw or a combination of a tapping screw and an adhesive. This can be further improved. Moreover, in this case, by sticking the gypsum board 13 so as to block the joint portion 14 of the fireproof panel 1, the occurrence of unevenness on the outer surface of the wall of the fireproof panel 1 can be eliminated, and a smooth wall surface can be formed.

  A preferred embodiment of the present invention will be described below with reference to the drawings. FIG. 1 (a) is a longitudinal sectional view of a field wall structure configured using a fireproof panel 1 according to the present invention. (b) is a cross-sectional view taken along line XX of (a) in the left half, and is a cross-sectional view taken along line YY in (a), with the fireproof boards 16 and 17 removed. 2A is a cross-sectional view taken along the line II in FIG. 1A, FIG. 2B is an enlarged view of a portion indicated by an arrow B in FIG. 1A, and FIG. FIG. 4 is an enlarged perspective view of the fireproof panel 1 formed by adding the gypsum board 3 in the longitudinal direction and the width direction of the panel, and FIG. 5 is an enlarged view of a portion indicated by an arrow c in FIG. This boundary wall structure is basically a refractory panel 1 that is arranged side by side with a certain space.

  First, the structure of the fireproof panel 1 will be described. As can be seen from FIGS. 1, 4 and 5, each fireproof panel 1 has two gypsum boards 3 between two steel plates 2 and 2 which are long in the vertical direction. , 3 and the gypsum boards 3 and 3, and the gypsum board 3 and the steel plate 2 are bonded and integrated with each other.

  As the steel plate 2 forming the fireproof panel 1, a galvanized steel plate, a coated steel plate or a steel plate coated with a galvanized steel plate is used, and the steel plate 2 has a thickness of about 0.5 to 1.2 mm. The width of 2 is about 450 mm to 1500 mm, and the length is about 2000 mm to 3500 mm. Regarding the plate thickness of the steel plate 2, the two steel plates 2 and 2 sandwiching the gypsum board 3 and 3 may both have the same plate thickness, or 2 in the case of the fireproof panel 1 used for the boundary wall structure. Of the steel plates 2 and 2, the steel plate 2 disposed outside the boundary wall may be slightly thicker than the steel plate 2 disposed inside the boundary wall. The thickness of the steel plate 2 arranged outside the boundary wall is made thicker than that of the steel plate 2 arranged inside the boundary wall. The steel plate 2 arranged outside is attached to the outer surface of the wall of the fireproof panel 1 as described later. This is because the gypsum board 13 to be attached is attached with a tapping screw or the end portion of the partition panel is attached with a screw via an attachment fitting, so that a plate thickness sufficient to hold the screw is required. In addition, as the gypsum board 3 of the fireproof panel 1 of this embodiment, an inexpensive gypsum board that is generally used and is relatively thin is used, which is 9.5 mm. The outer steel plate 2 and the gypsum board 3 have the same length and width, and the peripheral edges are exactly matched when they are overlapped.

  In forming the fireproof panel 1, as shown in FIG. 3, one steel plate 2 and one gypsum board 3 in contact with the steel plate 2, and the other steel plate 2 and one gypsum on the side in contact therewith. By engaging the board 3 with each other by a predetermined dimension n (for example, 10 to 15 mm) in the panel width direction, engagement step portions 5 and 5 for panel joining are formed at both ends of the panel width direction. In the case of the fireproof panel 1 formed by arranging three gypsum boards 3 between the two steel plates 2, 2, the steel plate 2 on one side and one gypsum board on the side in contact with the steel plate 2 3 and the steel plate 2 on the other side and the two gypsum boards 3 on the side in contact therewith may be shifted from each other by a predetermined dimension in the panel width direction.

  In forming the fireproof panel 1, a plurality of bolt mounting holes 6 are provided at both ends in the longitudinal direction of the panel. As shown in FIG. 5, each bolt mounting hole 6 is provided with a through hole 30 in the gypsum board, and provided with lower holes 31 and 32 concentrically on the steel plates 2 and 2 on both sides, and around the lower hole 31. The bolt head recessed portion 33 is formed by a bolt head recessed portion 33 and a bolt insertion hole 34 formed by drawing the portion 31a and joining the peripheral portion 32a of the other lower hole 32. The head 11a of the mounting bolt 11 is formed so as to have an inner diameter and a depth into which the head 11a can be inserted, and the bolt insertion hole 34 is formed so that the shaft portion of the bolt 11 can be inserted. The through hole 30 of the gypsum board 3 is formed in advance before the steel plate 2 is attached to the gypsum board 3.

  According to the bolt mounting hole 6 having the above-described structure, it is easy to process and the bolt mounting hole 6 can be easily formed. When this bolt mounting hole 6 is formed, as shown in FIG. 5, the peripheral edge portion 32a of the lower hole 32 of the other steel plate 2 is wound around the lower hole peripheral portion 31a on the one steel plate 2 side that has been drawn. Caulking is recommended.

  In forming the fireproof panel 1, the gypsum board 3 and the steel plates 2 and the gypsum board 3 may be bonded to the inner surface of the steel plate 2 and / or to the opposite surface of the gypsum board 3 in whole or in part. Is applied to bond the gypsum boards 3 together, and the steel plate 2 and the gypsum board 3 are bonded to each other.

  The fireproof panel 1 formed as described above is a composite panel having a predetermined thickness in which the steel plates 2 and 2 on both sides and the two gypsum boards 3 and 3 interposed between them are integrated with each other. Therefore, sufficient strength and bending rigidity are secured as a building panel. Therefore, when this fireproof panel 1 is used as a wall, a panel base such as a stud or a wooden cross is unnecessary, and the work at the site can be simplified and construction can be performed. Sexuality gets better. In addition, by sandwiching the two plaster boards 3 between the two steel plates 2 on both sides, the plaster board 3 can be prevented from collapsing or falling off in the event of a fire, and the crystal water of the plaster board 3 can be contained for a long time in the event of a fire. The crystal water can suppress an increase in temperature over a long period of time and exhibit excellent fire resistance.

  In particular, this fireproof panel 1 uses a gypsum board 3 having a relatively thin plate thickness of 9.5 mm and two gypsum boards 3 having a plate thickness of 9.5 mm between two steel plates 2 and 2. Since they are arranged so as to overlap each other, the sound insulation performance can be effectively improved as compared with a fireproof panel formed by overlapping two gypsum boards having a relatively large thickness, for example, 12.5 mm. FIG. 8 shows the difference in sound insulation performance between the two in this case. That is, FIG. 8 shows a comparative performance test result between two sheets of 9.5 mm thick gypsum board and two sheets of 12.5 mm thick gypsum board. The thin 9.5 mm gypsum board has less drop at 500 Hz in the area subject to daily noise, but the thick 12.5 mm gypsum board has a larger drop at 500 Hz. This is due to the coincidence effect, and it is proved that the thin 9.5 mm gypsum board has higher sound insulation performance than the thick 12.5 mm gypsum board. In FIG. 8, Rr is a value indicating the sound insulation performance.

  The thin 9.5 mm gypsum board is widely used and is sold at a low price. Table-A below shows the price of ordinary plasterboard with a plate thickness of 9.5 mm, Table-B shows the price of ordinary plasterboard with a plate thickness of 12.5 mm and plate thickness of 15 mm. Compared with B, it can be seen that the 9.5 mm gypsum board is inexpensive. Table-C shows the reinforced gypsum board mixed with inorganic fibers, and Table-D shows the prices of the fiber-reinforced gypsum board and pearlite board. From these Table-C and Table-D, ordinary gypsum board is shown. It can be seen that is much cheaper than reinforced gypsum board. The normal gypsum board is made of calcium sulfate, and the reinforced gypsum board is obtained by appropriately mixing inorganic fibers and the like in this calcium sulfate.

  Also, as an effect of the fireproof panel 1 according to the present invention, since a plurality of relatively thin gypsum boards 3 are stacked and bonded together with an adhesive, the damping effect and control are controlled by the viscoelasticity of the adhesive. The vibration effect is effectively exhibited and the sound insulation effect is further improved.

  FIG. 4 shows a fireproof panel 1 formed by adding a gypsum board 3 of a panel in the panel longitudinal direction and width direction, and each gypsum board 3 is composed of four extension boards 3a. That is, the fireproof panel 1 is formed by adding two gypsum boards 3 between the steel plates 2 and 2 in the panel longitudinal direction and width direction, and joining the gypsum board 3 with the extension boards 3a. The part 27 is formed with a predetermined dimension m (about 10 to 15 times the thickness of the gypsum board 3) shifted in the longitudinal direction and the width direction of the panel 27 with respect to the joining part 27 of the additional boards 3a. It is a thing.

  Like the fireproof panel 1 shown in FIG. 4, two gypsum boards 3 and 3 are interposed between the steel plates 2 and 2, and each gypsum board 3 is formed by adding a plurality of gypsum boards 3 in the longitudinal direction and width direction of the panel. In this case, the joining portion 27 between the extension boards 3a of the one side plaster board 3 and the joining portion 27 between the extension boards 3a of the other side plaster board 3 are respectively set to a predetermined dimension m in the panel longitudinal direction and the width direction. By shifting, the joint portion 27 of the gypsum board 3 on one side and the joint portion 27 of the gypsum board 3 on the other side do not overlap in the panel thickness direction, whereby the rigidity and fire resistance of the fireproof panel 1 are increased. The performance and sound insulation performance are not impaired, and those performances are effectively maintained.

  This is because in the joint portion 27 between the extension boards 3a of each plaster board 3, the end faces of the adjacent extension boards 3a, 3a are in contact with each other, or a slight gap is formed between the end faces. From this, when the joint portion 27 of the gypsum board 3 on one side and the joint portion 27 of the gypsum board 3 on the other side overlap in the panel thickness direction, the bending rigidity of the fireproof panel 1 is reduced at the joint portion 27, The fireproof performance and sound insulation performance will deteriorate.

  In addition, in the fireproof panel 1 of this embodiment, each gypsum board 3 was added in the panel longitudinal direction and width direction, respectively, and each gypsum board 3 was formed by four extension boards 3a. It is also possible to add only in the longitudinal direction of the panel, or add only in the width direction.

  Also, the fireproof panel 1 shown in FIG. 4 is similar to the fireproof panel 1 shown in FIG. 3 in that the steel plate 2 on one side and the gypsum board 3 on the side in contact with it, the steel plate 2 on the other side, and the gypsum on the side in contact with this. By engaging the board 3 with each other by a predetermined dimension n in the panel width direction, panel engaging steps 5 and 5 are formed at both ends in the panel width direction.

  FIG. 6A shows another embodiment of the bolt mounting holes 6 provided at both ends in the longitudinal direction of the fireproof panel 1. The bolt mounting hole 6 has a through-hole 36 provided in the gypsum board 3 having an inwardly narrow flange portion 37 on one end side and an inwardly wide flange portion 38 on the other end side (b) of FIG. Are inserted into the steel plates 2 and 2 on both sides, and the lower holes 40 and 41 are provided concentrically, respectively, and the peripheral portions 40a of the lower holes 40 and 41 of the steel plates 2 and 2 are respectively provided. , 41a are formed by joining a bolt head immersion portion 42 and a bolt insertion hole 43, which are formed by joining the inwardly narrow flange portion 37 and the inwardly wide flange portion 38 of the sheath tube 39. The part immersion part 42 is formed so as to have an inner diameter and a depth into which the head 11 a of the mounting bolt 11 can be immersed, and the bolt insertion hole 43 is formed so that the shaft part of the bolt 11 can be inserted. .

  According to such a bolt mounting hole 6, the operation of forming the bolt mounting hole 6 is simple and easy. In forming this bolt mounting hole 6, as shown in FIG. 6, the pilot hole peripheral portions 40 a and 41 a of both steel plates 2 and 2 are connected to the inwardly narrow flange portion 37 and the inwardly wide flange portion of the sheath tube 39. It is good to carry out caulking so that it may wind around 38, respectively.

  FIG. 7 shows a modification of the bolt mounting hole 6 shown in FIG. That is, the bolt mounting hole 6 is provided with a through hole 44 at the end of the gypsum board 3 and provided with lower holes 45 and 46 on the steel plates 2 and 2 on both sides, respectively, and around the lower hole 45 of the steel plate 2 on one side. A bolt head immersion portion 47 and a bolt insertion hole 48 formed by drawing the portion 45a and joining the peripheral portion 46a of the lower hole 46 of the steel plate 2 on the other side. The portion 47 is formed so as to have an inner diameter and a depth into which the head 11 a of the mounting bolt 11 can be immersed, and the bolt insertion hole 48 is formed so that the shaft portion of the bolt 11 can be inserted.

  Next, an embodiment of the boundary wall structure according to the present invention will be described in detail. In FIGS. 1A and 1B showing the boundary wall structure, 7 is a fabric foundation of a building, and 8 is a fabric foundation 7. The lower flange 8b of the H-shaped steel 8 is fastened on the fabric foundation 7 by the anchor bolt 21 and the nut 22 in a base (lower horizontal member) made of horizontal H-shaped steel placed on the upper side. Reference numeral 9 denotes a torso (upper horizontal member) made of horizontal H-shaped steel that is horizontally mounted on the boundary between the first floor and the second floor of the building. In addition, the building of this embodiment is a two-story building, and the eaves girder (upper horizontal member) made of horizontal H-shaped steel is horizontally mounted on the ceiling side of the second floor, but this eaves girder is omitted.

  When constructing the boundary wall, the upper flange 8a of the H-shaped steel 8 as a base (lower horizontal member) is fixedly attached to the upper surface of the upper flange 8a with bolts 23 and nuts 24 on both sides thereof, In addition, the H-shaped steel 9 as the trunk (upper horizontal member) is provided with L-shaped fittings 10 on the upper surface side of the upper flange 9a and the upper surface side of the lower flange 9b, respectively, similarly to the H-shaped steel 8 of the base. The bolt 23 and the nut 24 are attached and fixed. The mounting hardware 10 is a hardware having a relatively short length, and the horizontal pieces 10 b are fixed to the H-section steels 8 and 9 with bolts 23 and nuts 24. In this case, the nut 24 may be fixed to the horizontal piece 10b of the mounting hardware 10 by welding in advance. The left half of FIG. 1 (b) is a sectional view taken along the line XX of (a), and the right half is a sectional view taken along the line YY of (a). The fireproof boards 16 and 17 are removed. FIG. 1 (a) and 1 (b), the L-shaped mounting hardware 10 is illustrated as a horizontal continuous one, but in actuality the horizontal length is about 10 cm. It is a short hardware.

  Thus, in order to place the pair of left and right fireproof panels 1 and 1 side by side with a fixed space portion S therebetween, the upper end of the fireproof panel 1 on one side is connected to one of the lower flanges 9b of the H-section steel (cylinder) 9. Attach and fix the bolt 11 and nut 12 to the vertical piece 10a of the mounting hardware 10 attached to the side, and attach the lower end of the fireproof panel 1 to one side of the upper flange 8a of the H-section steel (base) 8 It is fixed to a vertical piece 10a of a certain mounting hardware 10 with bolts 11 and nuts 12. The other end of the refractory panel 1 is also fixed to the vertical piece 10a of the mounting hardware 10 attached to the other side of the lower flange 9b of the H-shaped steel 9 with bolts 11 and nuts 12 and the lower end thereof. Are fixed to the vertical piece 10a of the mounting hardware 10 attached to one side of the upper flange 8a of the H-section steel 8 with bolts 11 and nuts 12. The nut 12 may be fixed to the vertical piece 10a of the mounting hardware 10 by welding in advance.

  When the upper and lower ends of each fireproof panel 1 are attached to the vertical piece 10a of the mounting hardware 10, they are attached via bolt attachment holes 6 provided at the upper and lower ends of the fireproof panel 1, as shown in FIG. That is, the bolt 11 is inserted from the bolt insertion hole 34 of each bolt mounting hole 6 provided at each of the upper and lower ends of the fireproof panel 1 into the bolt insertion hole 34 and the bolt insertion hole 25 of the vertical piece 10a of the mounting hardware 10. The nut 12 may be tightened. At this time, the head 11a of the bolt 11 is immersed in the bolt head immersion portion 33 as shown.

  Each fire-resistant panel 1 has sufficient strength and bending rigidity as a building panel as described above, and has a structure that can be self-supported by the panel itself. It only has to be attached to the lower horizontal member such as the base 8 and the like, and a base material such as a stud or a wooden cross is not necessary, and the installation work at the construction site becomes easy.

  As described above, a pair of fireproof panels 1 and 1 on both left and right sides are juxtaposed with a constant space S therebetween, and upper and lower ends of each fireproof panel 1 are attached to H-shaped steel (cylinder) 9 and H-shaped steel (base) 8. After fixing, as shown in FIGS. 1 (a) and 2 (a), 2 (b), the steel plate 2 on the outer surface of each fireproof panel 1 is covered with a gypsum board 13 so that the steel plate 2 is covered. Paste to. The gypsum board 13 is usually screwed to the steel plate 2 with a tapping screw 26, and is attached by a combination of screwing with the tapping screw 26 and adhesion with an adhesive. By carrying out like this, the gypsum board 13 does not fall off instantaneously at the time of a fire, and fire resistance can be given.

  In addition, a plurality of fireproof panels 1 are connected in the panel width direction. In this connection, as shown in FIGS. 2 (a) and 2 (b), both ends of each fireproof panel 1 in the width direction are connected. The fireproof panels 1 and 1 are joined to each other in a state where the engaging steps 5 and 5 for panel joining formed in the above are engaged with each other. Thereby, the clearance gap of the joint part 14 which is a connection part of the fireproof panels 1 and 1 can be effectively blocked, and fireproof performance and sound insulation performance can be improved. By the way, if the engagement step 5 is not formed at the left and right ends of the fireproof panel 1, the end faces of the panels 1 and 1 are abutted flat when the fireproof panel 1 is connected. The gap which penetrates in the width direction of 1 will be produced, and fireproof performance will fall.

  Further, when connecting the gypsum board 13 to be attached to the outer surface of the wall of each fireproof panel 1 in the width direction, as shown in FIG. 1 and 1 are not overlapped with the joint portion 14, thereby achieving mutual integration of the panels and eliminating the occurrence of unevenness on the outer surface of the fireproof panel 1, thereby forming a smooth wall surface can do.

  As shown in FIG. 1 (a), a fireproof 9 is formed between the upper fireproof panel 1 and the lower fireproof panel 1 with the barrel 9 made of H-shaped steel interposed between the fireproof panel 1 and the lower fireproof panel 1. The board 16 is attached, and the fireproof board 17 is attached to both sides of the base 8 made of H-shaped steel so as to cover it. The refractory boards 16 and 17 are covered with the gypsum board 13 adhered along the outer wall surface of each refractory panel 1. As the refractory boards 16 and 17, ordinary gypsum boards, glass fiber mixed gypsum boards, calcium silicate boards, and the like can be used. The fireproof boards 16 and 17 have not only fire resistance but also sound insulation. Further, in this embodiment, the fireproof boards 16 and 17 are covered with the gypsum board 13, but the fireproof boards 16 and 17 are mixed with, for example, glass fiber other than the gypsum board 13 (made of ordinary gypsum board). It may be covered with a gypsum board or a calcium silicate board.

  In FIG. 2 (a), 18 is a square steel pipe column that stands on the base 8 and supports the trunk 9 (upper horizontal member), and 19 is a steel member stretched between adjacent columns 18 and 18. The brace.

  As described above, the boundary wall structure of the first floor portion of the two-story building shown in FIG. 1 has been described, but the lower wall portion of the boundary wall structure of the second floor portion is attached to the trunk 9 made of H-section steel, The upper end portion is attached to an eaves girder (upper horizontal member) made of H-shaped steel (not shown), and since it is the same as the above-described first-floor part boundary wall structure, its description is omitted.

  The boundary wall structure of the embodiment described above is a panel in which two fire-resistant panels 1 and 1 standing side by side with a certain space S can be provided independently. Since there is no connecting portion that becomes a so-called sound bridge that transmits sound from one fireproof panel 1 to the other fireproof panel 1 except for both ends, the sound insulation is improved. Incidentally, in a conventional fireproof panel that requires a base material such as a stud or a wooden frame for mounting the panel, the sound insulation is deteriorated because the stud, the wooden frame and the like constitute the sound bridge.

  Further, according to this boundary wall structure, the space portion S is formed between the double walls formed by the two fireproof panels 1, 1, thereby improving the sound resistance and the fire resistance. In addition, each fireproof panel 1 is a self-supporting panel, and a panel base such as a stud is not interposed in the space S between the double walls, so that it is stretched between the pillars standing on the base and the pillars. Because it does not interfere with structural materials such as braces, it fits better, and the temperature of the space S is below a predetermined temperature, so the fireproof coating of steel materials such as struts located in the space S should be omitted. Can do. In addition, by inserting a required heat insulating material and / or a required sound insulating material into the space S, it is possible to significantly improve the fire resistance and / or the sound insulating performance of the field wall. Moreover, sound insulation and fire resistance can be further improved by sticking the gypsum board 13 on the wall outer surface of each fireproof panel 1.

  In this boundary wall structure, when connecting a plurality of refractory panels 1 in the width direction, the panel joint engaging step portions 5 and 5 formed at the left and right ends of each refractory panel 1 are engaged with each other to provide fire resistance. By joining the panels 1 and 1, it is possible to effectively close the gap between the joint portions 14, which are the connection portions of the panels 1 and 1, and to improve fire resistance and sound insulation performance.

  Further, in this boundary wall structure, the fireproof panels 1 and 1 on both sides juxtaposed across a certain space S are a base made of H-shaped steel using the bolt mounting holes 6 at the upper and lower ends of the fireproof panel 1. Since the bolts 11 are fixed to the mounting hardware 10 attached to the lower horizontal member such as 8 etc., both the fireproof panels 1 and 1 can be easily and accurately attached at a fixed interval, thereby improving the construction efficiency. be able to.

(a) is a longitudinal sectional view of a field wall structure using a fireproof panel according to the present invention, (b) is a sectional view taken along line XX of (a) on the left half, and Y- It is sectional drawing of the state which removed the fireproof boards 16 and 17 by Y line sectional drawing. (a) is a cross-sectional view taken along the line II in (a) of FIG. 1, and (b) is an enlarged view of a portion indicated by an arrow (b) in (a). It is an expansion perspective view of a fireproof panel. It is an expansion perspective view of the fireproof panel formed by adding the gypsum board to the panel longitudinal direction and the width direction. It is an expanded sectional view of the part shown by the arrow c of (a) of FIG. 1, and shows the detailed structure of a bolt attachment hole. (a) is sectional drawing similar to FIG. 5 which shows other embodiment of a bolt attachment hole, (b) is a perspective view which shows a sheath pipe. (a) is a perspective view showing still another embodiment of the bolt mounting hole, and (b) is a sectional view thereof. It is a graph which shows a gypsum board with a plate thickness of 9.5 mm and a gypsum board with a plate thickness of 12.5 mm.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fireproof panel 2 Steel plate 3 Gypsum board 5 Engagement step part 6 Bolt mounting hole 8 Base 9 Trunk 10 Mounting hardware 13 Gypsum board

Claims (13)

  A fireproof panel in which a plurality of gypsum boards are sandwiched between two steel sheets, and the gypsum boards and the gypsum boards and the steel sheets are bonded together by an adhesive.   The fireproof panel according to claim 1, wherein two gypsum boards each having a thickness of 9.5 mm are disposed between the two steel plates. The fireproof panel according to claim 1, wherein two gypsum boards having a thickness of 9.5 mm are arranged between the two steel plates.   The steel plate on one side and one or more gypsum boards on the side in contact with it, and the steel plate on the other side and one or more gypsum boards on the side in contact with it are shifted from each other by a predetermined dimension in the panel width direction. The fireproof panel according to any one of claims 1 to 3, wherein engagement step portions are formed at both end portions in the panel width direction.   A plurality of gypsum boards sandwiched between both steel plates are formed by adding in the panel longitudinal direction and / or width direction, respectively, and at least one of the plurality of gypsum boards is in contact with a joint portion between the extension boards. The fireproof panel according to any one of claims 1 to 4, wherein the fireproof panel is formed by being shifted by a predetermined dimension in the longitudinal direction and / or the width direction of the panel with respect to the joint portion between the additional boards of other gypsum boards.   The fireproof panel according to any one of claims 1 to 5, wherein a plurality of bolt mounting holes are provided at both ends of the panel in the longitudinal direction.   Each bolt mounting hole is formed by providing a through hole in the gypsum board, providing a lower hole in the steel plates on both sides, drawing one lower hole peripheral part, and joining the other lower hole peripheral part. The fireproof panel according to claim 6, comprising a bolt head immersion portion and a bolt insertion hole.   Each bolt mounting hole is inserted into a through hole provided in the gypsum board with a sheath tube having an inwardly narrow flange portion on one end side and an inwardly wide flange portion on the other end side, and steel plates on both sides Bolt head immersed parts are formed by concentrically providing pilot holes respectively and joining the peripheral edge parts of the two steel plates to the inwardly narrow flange part and the inwardly wide flange part of the sheath tube. The fireproof panel according to claim 6 comprising a bolt insertion hole and a bolt insertion hole.   It is a field wall structure using the fireproof panel in any one of Claims 1-8, Comprising: The field wall structure formed by juxtaposing two fireproof panels across a fixed space part.   The field wall structure according to claim 9, wherein the upper and lower ends of the fireproof panel are bolted to an attachment hardware attached to a lower horizontal member such as a base made of H-shaped steel using the bolt attachment holes.   11. When connecting a plurality of refractory panels in the panel width direction, the refractory panels are joined to each other by engaging engagement step portions formed at both end portions of each refractory panel. Border wall structure.   The boundary wall structure according to any one of claims 9 to 11, wherein a sound absorbing material and / or a heat insulating material is inserted into the space portion.   The field wall structure according to any one of claims 9 to 12, wherein a gypsum board is attached to a wall outer surface of each fireproof panel with a tapping screw or a combination of a tapping screw and an adhesive.

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