Fire-resistant panel and its joint structure

Abstract

To provide a new fireproof panel and an exterior wall using the panel, and a new joint structure between the fireproof panels.SOLUTION: A joint structure of a fireproof panel comprises: a first fireproof panel with a first noncombustible board, a second noncombustible board, and a first mating recess located between the first and second noncombustible boards; a second fireproof panel with a third noncombustible board, a fourth noncombustible board, and a second mating recess located between the third and fourth noncombustible boards; a mating board located between the first fireproof panel and the second fireproof panel, and between the first mating recess and the second mating recess; a first gap located between the first noncombustible board and the third noncombustible board; a second gap located between the third noncombustible board and the mating board; and a first sealant to fill the second gap. The first mating recess and the second mating recess are positioned facing each other.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] One embodiment of the present invention relates to a fire-resistant panel, a joint structure of the fire-resistant panel, and a fire-resistant exterior wall. [Background technology]

[0002] Fire-resistant panels are known as one type of fire-resistant exterior wall for buildings. One type of fire-resistant panel is a sandwich panel in which a core material is sandwiched between two metal skins (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-60211 Summary of the Invention [Problem to be solved by the invention]

[0004] In a fire-resistant exterior wall constructed of multiple sandwich panels, waterproofing of the panel fitting portions is important. One embodiment of the present invention aims to provide a sandwich panel joint structure that is waterproofed. [Means for solving the problem]

[0005] A fire-resistant panel according to one embodiment of the present invention comprises a first non-combustible board and a second non-combustible board having a first surface and a second surface, a first fire-resistant covering material covering the second surface of the first non-combustible board, a second fire-resistant covering material covering the second surface of the second non-combustible board, and a honeycomb material between the first non-combustible board and the second non-combustible board, with the second surface of the first non-combustible board and the second surface of the second non-combustible board arranged opposite each other. [Effects of the Invention]

[0006] According to one embodiment of the present invention, a low-cost, highly reliable fire-resistant exterior wall and a method for manufacturing the same can be provided. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a schematic perspective view of a fire-resistant exterior wall according to an embodiment of the present invention; [Figure 2] FIG. 1 is a schematic cross-sectional view of a panel according to an embodiment of the present invention. [Figure 3] 1 is a schematic cross-sectional view of a panel joining structure according to an embodiment of the present invention. [Figure 4] 1 is a schematic cross-sectional view of a panel joining structure according to an embodiment of the present invention. [Figure 5] 1 is a schematic cross-sectional view of a panel joining structure according to an embodiment of the present invention. [Figure 6] 5A to 5C are schematic cross-sectional views showing a method of assembling a panel joint structure according to one embodiment of the present invention. [Figure 7] 5A to 5C are schematic cross-sectional views showing a method of assembling a panel joint structure according to one embodiment of the present invention. [Figure 8] 5A to 5C are schematic cross-sectional views showing a method of assembling a panel joint structure according to one embodiment of the present invention. [Figure 9] 5A to 5C are schematic cross-sectional views showing a method of assembling a panel joint structure according to one embodiment of the present invention. [Figure 10] 5A to 5C are schematic cross-sectional views showing a method of assembling a panel joint structure according to one embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0008] Hereinafter, various embodiments of the present invention will be described with reference to the drawings. However, the present invention can be embodied in various forms without departing from the spirit of the present invention, and the present invention should not be construed as being limited to the description of the following exemplary embodiments.

[0009] In order to clarify the description, the drawings may show the width, thickness, shape, etc. of each part schematically compared to the actual embodiment, but these are merely examples and do not limit the interpretation of the present invention. In this specification and each drawing, elements having the same functions as those explained in the previous drawings may be given the same reference numerals, and duplicate explanations may be omitted. In the attached drawings, for convenience, the XZ plane is defined as the horizontal plane, and the Y direction is defined as the vertical direction.

[0010] Hereinafter, the expression "a structure is exposed from another structure" means a state in which a part of a structure is not covered by another structure, and also includes a state in which this part not covered by another structure is covered by yet another structure.

[0011] First Embodiment Overall structure In this embodiment, the structure of a fire-resistant exterior wall 10 according to one embodiment will be described. As shown in FIG. 1, the fire-resistant exterior wall 10 has multiple fire-resistant panels. The multiple fire-resistant panels are arranged in horizontal and vertical directions. For convenience of explanation, FIG. 1 defines the X, Y, and Z directions. When facing the fire-resistant exterior wall 10, the X direction corresponds to the horizontal direction, the Y direction corresponds to the vertical direction, and the Z direction corresponds to the front-to-rear direction (thickness direction of the exterior wall panel). That is, multiple fire-resistant panels 100 shown in FIG. 1 are arranged in the X and Y directions and fixed to multiple mullions 20 arranged in the X direction. As shown in FIG. 1, for example, fire-resistant panels 100-11, 100-12, 100-21, and 100-22 are joined using panel joints (not shown) and fixed to mullion 20-2.

[0012] As shown in FIG. 1, vertical joints 40-1 and 40-2 are provided between multiple fire-resistant panels 100 lined up in the X direction. Multiple mullions 20 are arranged along the vertical joints. For example, as shown in FIG. 1, mullion 20-2 is arranged along vertical joint 40-1, and mullion 20-4 is arranged along vertical joint 40-2. Further mullions 20 are arranged between the multiple mullions 20 arranged along the vertical joints. For example, as shown in FIG. 1, mullion 20-3 is arranged between mullions 20-2 and 20-4.

[0013] A plurality of horizontal joints 30 are arranged between the plurality of fire-resistant panels 100 arranged in the Y direction. For example, as shown in Fig. 1, a horizontal joint 30-1 is provided between the fire-resistant panel 100-21 and the fire-resistant panel 100-22, and a horizontal joint 30-2 is provided between the fire-resistant panel 100-22 and the fire-resistant panel 100-23.

[0014] As shown in FIG. 1 , the horizontal joints 30 and the vertical joints 40 intersect at a point. A panel joint (not shown) is provided at the intersection, joining at least two or more fire-resistant panels 100. The panel joints may be either vertical or horizontal. If the panel joints are vertical, the joint boards can be arranged along the horizontal joints 30. If the panel joints are horizontal, the joint boards can be arranged along the vertical joints 40. Furthermore, if the panel joints are neither horizontal nor vertical, the joint boards can be arranged at the intersections of the vertical joints 40 and the horizontal joints 30, allowing the panel joints to be independent in the Y and X directions. In this way, the fire-resistant exterior wall 10 can be enlarged by combining the fire-resistant exterior wall 10 in the X or Y direction, or both the X and Y directions. Furthermore, the front side of the fire-resistant panels 100 can be the outdoor side, and the far side of the fire-resistant panels 100 can be the indoor side. That is, when the Z direction is defined as shown in Figure 1, the side of the fire-resistant panels on which the multiple mullions 20 are arranged in the Z direction can be the indoor side, and the opposite side can be the outdoor side.Furthermore, the fire-resistant panels can have their width in the X direction, their height in the Y direction, and their thickness in the Z direction.

[0015] 1 shows an example in which a fire-resistant exterior wall 10 is constructed by arranging a plurality of rectangular fire-resistant panels 100-11 to 13, 100-21 to 23, and 100-31 to 33 with their long sides parallel to the X direction and their short sides parallel to the Y direction. However, this embodiment is not limited to this example, and the fire-resistant panels 100-11 to 13, 100-21 to 23, and 100-31 to 33 may be arranged with their long sides parallel to the Y direction and their short sides parallel to the X direction. Regardless of whether the rectangular fire-resistant panels 100-11 to 13, 100-21 to 23, and 100-31 to 33 are placed vertically or horizontally, vertical joints 40-1 to 2 and horizontal joints 30-1 to 2 are formed on the outer surface of the fire-resistant exterior wall 10.

[0016] Panel structure FIG. 2 shows a cross-sectional schematic diagram of the upper and lower portions of the fire-resistant panel 100-22. The dashed line between the upper and lower portions of the fire-resistant panel 100-22 in FIG. 2 indicates that the upper and lower portions have the same structure. The fire-resistant panel 100-22 has a honeycomb material 102 and multiple non-combustible boards. The honeycomb material 102 is sandwiched between the multiple non-combustible boards. As shown in FIG. 2, the honeycomb material 102 is located between a first non-combustible board 104 and a second non-combustible board 106. The non-combustible boards can also be laminated with a fire-resistant covering material.

[0017] As described above, the fire-resistant panel 100-22 can have fire-resistant covering materials laminated on non-combustible boards. For example, as shown in FIG. 2, a first fire-resistant covering material 108 can be laminated on a first non-combustible board 104 in the X direction, and a second fire-resistant covering material 110 can be laminated on a second non-combustible board 106 in the X direction. Furthermore, the honeycomb material 102 can be sandwiched between the first fire-resistant covering material 108 and the second fire-resistant covering material 110. In this way, the honeycomb material 102 is positioned between and sandwiched between multiple fire-resistant covering materials, thereby improving fire resistance.

[0018] 2, the first fire-resistant covering material 108 is located between the honeycomb material 102 and the first non-combustible board 104, and the second fire-resistant covering material 110 is located between the honeycomb material 102 and the second non-combustible board 106. In other words, the fire-resistant panel 100-22 has a structure in which the honeycomb material 102 is sandwiched between multiple fire-resistant covering materials, and the multiple fire-resistant covering materials are further sandwiched between multiple non-combustible boards. Furthermore, the fire-resistant panel 100-22 has a structure in which the honeycomb material 102 is arranged inside or as the core of the fire-resistant panel 100-22, the first fire-resistant covering material 108 and the second fire-resistant covering material 110 are arranged outside the honeycomb material 102, and the first non-combustible board 104 and the second non-combustible board 106 are arranged outside the first fire-resistant covering material 108 and the second fire-resistant covering material 110. These structures also improve the fire resistance, bending ability, and wind pressure resistance of the fire-resistant panels.

[0019] Furthermore, the first non-combustible board 104 and the second non-combustible board 106 have two surfaces extending in the Y direction. For example, as shown in FIG. 2, the first non-combustible board 104 has a first surface 104-1 and a second surface 104-2, and the second non-combustible board 106 has a first surface 106-1 and a second surface 106-2. Furthermore, the respective second surfaces are arranged opposite each other. For example, as shown in FIG. 2, the second surface 104-2 of the first non-combustible board 104 and the second surface 106-2 of the second non-combustible board 106 are arranged opposite each other. Furthermore, the respective second surfaces are covered with a fire-resistant covering material. For example, as shown in FIG. 2, the second surface 104-2 of the first non-combustible board 104 is covered with a first fire-resistant covering material 108, and the second surface 106-2 of the second non-combustible board 106 is covered with a second fire-resistant covering material 110.

[0020] As shown in Fig. 2, when the X and Y directions are defined as in Fig. 1, the first non-combustible board 104 and the second non-combustible board 106 are disposed at different positions in the Y direction. As shown in Fig. 2, the positions of both ends of the first non-combustible board 104 and both ends of the second non-combustible board 106 in the Y direction are different. In other words, the first end 104-3 and the second end 104-4 of the first non-combustible board 104 can be disposed at different heights in the Y direction from the first end 106-3 and the second end 106-4 of the second non-combustible board 106. The first end 106-3, which is the higher end in the Y direction of the second non-combustible board 106, can be disposed at a higher position than the first end 104-3, which is the higher end in the Y direction of the first non-combustible board 104. Furthermore, the second end 106-4, which is lower in the Y direction among both ends of the second non-combustible board 106, can be positioned higher than the second end 104-4, which is lower in the Y direction among both ends of the first non-combustible board 104. Furthermore, each first end is located opposite the corresponding second end, for example, the first end 104-3 of the first non-combustible board 104 is located opposite the second end 104-4 of the first non-combustible board 104. Furthermore, for example, the first end 106-3 of the second non-combustible board 106 is located opposite the second end 106-4 of the second non-combustible board 106.

[0021] The first end 104-3 of the first non-combustible board 104 can be disposed between the first end 106-3 and the second end 106-4 of the second non-combustible board 106 in the Y direction. Here, the Y direction can be the direction from the first end to the second end of each non-combustible board and / or the direction from the second end to the first end. Furthermore, the first end 106-3 of the second non-combustible board 106 can be disposed between the first end 104-3 and the second end 104-4 of the first non-combustible board 104 in the Y direction. In this case, both ends of the honeycomb material 102 in the Y direction can be located between the first end 106-3 and the second end 106-4 of the first non-combustible board 104 and the second non-combustible board 106. Therefore, the first end 104-3 and the second end 104-4 of the first non-combustible board 104 protrude outward from both ends of the honeycomb material 102. The first end 106-3 and the second end 106-4 of the second non-combustible board 106 similarly protrude outward from both ends of the honeycomb material 102. In this case, the length L2 by which the first end 106-3 of the second non-combustible board protrudes from the end of the honeycomb material 102 is longer than the length L1 by which the first end 104-3 of the first non-combustible board 104 protrudes from the end of the honeycomb material 102. Furthermore, the first end 106-3 and the second end 106-4 of the second non-combustible board 106 can also be arranged in a direction extending longer than the honeycomb material 102 in the Y direction.

[0022] The fire-resistant panel 100-22 has a plurality of U-shaped support steel members. For example, as shown in FIG. 2, the fire-resistant panel 100-22 has a first U-shaped support steel member 112 and a second U-shaped support steel member 114. The first U-shaped support steel member 112 can be positioned on the side of the honeycomb material 102, which is closer to the first end 104-3 of the first non-combustible board 104 and the first end 106-3 of the second non-combustible board 106. The second U-shaped support steel member 114 can be positioned on the side of the honeycomb material 102, which is closer to the second end 104-4 of the first non-combustible board 104 and the second end 106-4 of the second non-combustible board 106.

[0023] The first U-shaped support steel member 112 and the second U-shaped support steel member 114 can be arranged to sandwich the honeycomb material 102. In this manner, by positioning the honeycomb material 102 between and sandwiching it between multiple U-shaped support steel members, the honeycomb material 102 is supported and prevented from sagging or bending due to load. The opening 116 of the first U-shaped support steel member 112 and the opening 118 of the second U-shaped support steel member 114 are arranged to face the honeycomb material 102. In other words, the opening 116 of the first U-shaped support steel member 112 and the opening 118 of the second U-shaped support steel member 114 can be arranged to face each other. Furthermore, as shown in FIG. 2, the opening 116 of the first U-shaped support steel member 112 and the opening 118 of the second U-shaped support steel member 114 can be arranged to contact the honeycomb material 102. Furthermore, the width in the X direction of the opening 116 of the first U-shaped support steel member 112 may be different from the width in the X direction of the opening 118 of the second U-shaped support steel member 114 .

[0024] The first U-shaped supporting steel material 112 and the second U-shaped supporting steel material 114 can be arranged between the first fire-resistant covering material 108 and the second fire-resistant covering material 110. In addition, the first U-shaped supporting steel material 112 and the second U-shaped supporting steel material 114 can be arranged between the first non-combustible board 104 and the second non-combustible board 106.

[0025] The above-mentioned U-shaped support steel material can be a steel material with a cross section resembling the shape of a U or a C, and may also be called, for example, C-shaped support steel material (C-shaped steel) or channel-shaped support steel material (channel steel).

[0026] The fire-resistant panel 100-22 has multiple decorative materials. For example, as shown in FIG. 2, the fire-resistant panel 100-22 has a first decorative material 120 and a second decorative material 122. Furthermore, as shown in FIG. 2, the first decorative material 120 and the second decorative material 122 can be provided on the outermost side of the fire-resistant panel 100-22, assuming that the honeycomb material 102 serves as the core of the fire-resistant panel 100-22. In other words, the honeycomb material 102, the first fire-resistant covering material 108, the second fire-resistant covering material 110, the first non-combustible board 104, and the second non-combustible board 106 can be provided between the first decorative material 120 and the second decorative material 122. In this way, providing the first decorative material 120 and the second decorative material 122 on the outermost side of the fire-resistant panel 100-22 improves the appearance of the fire-resistant exterior wall 10 without compromising its appearance.

[0027] The first decorative material 120 is composed of a single board, but has a curved shape so as to surround the first non-combustible board 104. The first decorative material 120 also has a curved shape so as to cover the end of the first non-combustible board 104. In the following description, for convenience, as shown in FIG. 2 , the front portion of the first decorative material 120 will be referred to as the first portion 120-1, the portion covering the surface including the second end 104-4 of the first non-combustible board 104 as the second portion 120-2, the back portion of the first non-combustible board 104 as the third portion 120-3, the portion covering the surface including the first end 104-3 of the first non-combustible board 104 as the fourth portion 120-4, and the portion extending from the fourth portion 120-4 in the opposite direction in the Y direction to the first U-shaped support steel material 112 as the fifth portion 120-5. It should be noted that the first decorative material 120 is not limited to a single board, and the first decorative material 120-1, second decorative material 120-2, third decorative material 120-3, fourth decorative material 120-4, and fifth decorative material 120-5 may be formed from individual components that are joined together to form an integrated unit when covering the first non-flammable board 104.

[0028] The first decorative material 120 can cover the first non-combustible board 104. As shown in FIG. 2, the first decorative material 120 can cover the first surface 104-1 of the first non-combustible board 104 with the first portion 120-1. Furthermore, as shown in FIG. 2, the first decorative material 120 can partially cover the second surface 104-2 of the first non-combustible board 104 with the third portion 120-3. At this time, the third portion 120-3 can cover the second surface 104-2 of the first non-combustible board 104 via the first fire-resistant covering material 108. In other words, the third portion 120-3 is bent from the second portion 120-2 and is provided to cover the second surface 104-2 of the first non-combustible board 104. Furthermore, the fourth portion 120-4 of the first decorative material 120 can cover the first end 104-3 of the first non-combustible board 104, and the second portion 120-2 of the first decorative material 120 can cover the second end 104-4 of the first non-combustible board 104. In this way, each portion of the first decorative material 120 partially covers the first non-combustible board 104, and can cover the entire first non-combustible board 104 that is not covered by the first fire-resistant covering material 108.

[0029] The first decorative material 120 can protrude into a first fitting recess 124, which will be described later. As shown in Fig. 2, the first decorative material 120 is bent from the first portion 120-1 at a fourth portion 120-4 so as to cover the first end 104-3 of the first noncombustible board 104 and one of both ends of the first fire-resistant covering material 108. Furthermore, the first decorative material 120 can bend and extend from the fourth portion 120-4 in the direction opposite to the honeycomb material 102 in the Y direction at a fifth portion 120-5. This bending and extension results in the first decorative material 120 having a shape that protrudes into the first fitting recess 124, as described above.

[0030] Furthermore, when the Y direction and Z direction are defined as described above, the fourth portion 120-4 protrudes into the first fitting recess 124 by more than the thickness of the first fire-resistant covering material 108 and the first noncombustible board 104 that are stacked in the Z direction, and as described above, can further extend in the Y direction. The length of the fourth portion 120-4 is longer than the thickness of the first fire-resistant covering material 108 and the first noncombustible board 104 that are stacked. Furthermore, the extension of the fifth portion 120-5 beyond the fourth portion 120-4 results in a portion of the first decorative material 120 that does not cover the first noncombustible board 104. The fifth portion 120-5 includes a first end portion 120-6 of the first decorative material 120, and the second end portion 120-7 opposite the first end portion 120-6 of the first decorative material 120 is included in the third portion 120-3. At this time, the first end 120-6 is positioned higher than the second end 120-7 in the Y direction.

[0031] The first decorative material 120 may have multiple inclined portions. As shown in FIG. 2, the first inclined portion is a fourth portion 120-4 formed by bending the first decorative material 120 to cover the first end 104-3 of the first non-combustible board 104, and the second inclined portion is a second portion 120-2 formed by bending the first decorative material 120 to cover the second end 104-4 of the first non-combustible board 104. As shown in FIG. 2, the first inclined portion 120-4 and the second inclined portion 120-2 may be formed to sandwich the first non-combustible board 104. When the honeycomb material 102 is located inside the fire-resistant panel 100-22, the first inclined portion 120-4 and the second inclined portion 120-2 may be inclined in a direction in which water flows toward the outside of the fire-resistant panel 100-22. The first inclined portion 120-4 can be inclined in the direction from the second end 104-4 to the first end 104-3 of the first noncombustible board 104, or in the Y direction, so that the first surface 104-1 side of the first noncombustible board 104 is lower than the second surface 104-2 side of the first noncombustible board 104. That is, the first inclined portion 120-4 can have an inclination such that the angle formed by the fourth portion 120-4 and a plane horizontal to the Z direction is between 0 and 90 degrees. Similarly, the second inclined portion 120-2 can have an inclination such that the angle formed by the second portion 120-2 and a plane horizontal to the Z direction is between 0 and 90 degrees. The first inclined portion 120-4 and the second inclined portion 120-2 do not have to have an inclination.

[0032] 2, the first decorative material 120 is configured such that the second portion 120-2 and the fourth portion 120-4 sandwich both ends of the first non-combustible board 104 in the Y direction, and further, the first portion 120-1 located between the second portion 120-2 and the fourth portion 120-4 can be used to cover the first non-combustible board 104. Specifically, the first portion 120-1 is the first portion of the first non-combustible board 104 as shown in FIG.

[0033] Similarly to the first noncombustible board 104, the first decorative material 120 can be provided to cover the first fire-resistant covering material 108. As shown in FIG. 2, the third portion 120-3 can be provided between the first fire-resistant covering material 108 and the second U-shaped support steel member 114. As shown in FIG. 2, the third portion 120-3 and the first portion 120-1 sandwich the first fire-resistant covering material 108, and the second portion 120-2 is located between the third portion 120-3 and the first portion 120-1. This arrangement allows the first fire-resistant covering material 108 to be further covered.

[0034] The second decorative material 122 can be provided to cover the second non-combustible board 106. As shown in FIG. 2 , the second decorative material 122 can be provided to cover the first surface 106-1 of the second non-combustible board 106. The second decorative material 122 can be bent to cover the first end 106-3 and the second end 106-4 of the second non-combustible board 106 in the Y direction. The second decorative material 122 can also be bent to cover the end of the second fire-resistant covering material 110 located on the first end 106-3 side of the second non-combustible board 106. The second decorative material 122 can also be bent to cover the end of the second fire-resistant covering material 110 located on the second end 106-4 side of the second non-combustible board 106. In other words, the second decorative material 122 can be bent to cover both ends of the second noncombustible board 106 and the second fire-resistant covering material 110 in the Y direction.

[0035] The fire-resistant panel 100-22 has multiple mating recesses. As shown in FIG. 2 , a first mating recess 124 is formed in the area surrounded by the first fire-resistant covering material 108, the first U-shaped support steel member 112, and the second fire-resistant covering material 110 at the first end 104-3 of the first non-combustible board 104 and the first end 106-3 of the second non-combustible board 106. The first mating recess 124 can be located on the opposite side of the opening 116 in the first U-shaped support steel member 112. In other words, the first mating recess 124 and the opening 116 in the first U-shaped support steel member 112 can be located back-to-back. The first mating recess 124 is located between the first non-combustible board 104 and the second non-combustible board 106. The first mating recess 124 is located between the first fire-resistant covering material 108 and the second fire-resistant covering material 110.

[0036] 2, a second fitting recess 126 is formed in the area surrounded by the first decorative material 120, the second U-shaped supporting steel material 114, and the second fire-resistant covering material 110 on the side of the second end 104-4 of the first noncombustible board 104 and the second end 106-4 of the second noncombustible board 106. The second fitting recess 126 is arranged on the opposite side of the opening 118 of the second U-shaped supporting steel material 114, and the second fitting recess 126 can be arranged on the opposite side of the opening 118 of the second U-shaped supporting steel material 114.

[0037] A sealing material can be provided in the first fitting recess 124. A sealing material (not shown) can be provided in the first fitting recess 124 on the side opposite the opening 116 of the first U-shaped support steel material 112. Furthermore, a sealing material (not shown) can be provided in the first fitting recess 124 below the fourth portion 120-4 of the first decorative material 120. In this case, the sealing material provided below the fourth portion 120-4 of the first decorative steel material 120 can be positioned so as to sandwich the first fire-resistant covering material 108 between the first noncombustible board 104.

[0038] The second fitting recess 126 is located between the first noncombustible board 104 and the second noncombustible board 106. The first fitting recess 124 is located between the first fire-resistant covering material 108 and the second fire-resistant covering material 110. The first fitting recess 124 and the second fitting recess 126 can be arranged to sandwich the honeycomb material 102. The first fitting recess 124 and the second fitting recess 126 can be arranged to sandwich the first U-shaped support steel material 112 and the second U-shaped support steel material 114. In other words, the honeycomb material 102 is located between the first fitting recess 124 and the second fitting recess 126 and between the first U-shaped support steel material 112 and the second U-shaped support steel material 114. The first U-shaped support steel material 112 can be located between the honeycomb material 102 and the first fitting recess 124. Furthermore, a second U-shaped support steel member 114 can be disposed between the honeycomb member 102 and the second fitting recess 126 .

[0039] A sealant can be provided in the second fitting recess 126. A sealant (not shown) can be provided in the second fitting recess 126 on the side opposite to the opening of the second U-shaped support steel member.

[0040] The first and second mating recesses 124 and 126 are not arranged opposite each other, that is, as shown in FIG.

[0041] An example of a material used for the fire-resistant panel 100-22 will be described below.

[0042] The non-combustible board can be made of a material that has excellent fire resistance, little heat storage, and a high cooling effect. For example, two types of calcium silicate board can be used.

[0043] The fire-resistant covering material may be a material that is strong, waterproof, and fire-resistant, such as a glass fiber-mixed gypsum board.

[0044] The U-shaped support steel material may be made of, for example, an alloy such as aluminum, or stainless steel.

[0045] The honeycomb material may be a material that has a high heat insulating effect and a low heat storage effect, for example, a honeycomb material, or a honeycomb material for panel reinforcement.

[0046] The decorative material may be, for example, ceramic such as tiles, wood, alloys such as aluminum, stainless steel, steel plate, or the like.

[0047] The sealant can be a fixed sealant that maintains airtightness. For example, rubber such as gasket rubber, resin, etc. can be used, and foamed polyethylene material such as a backup material can also be used. In addition, when using a sealant by injection, resin of an amorphous sealant can be used.

[0048] · Joint structure 3-1. Cross-sectional structure 1 Fig. 3 is a schematic cross-sectional view taken along the chain line A1-A2 in Fig. 1. This figure shows the joint structure between the fire-resistant panels 100-21 and 100-22, and the mullions 20-3 that support the fire-resistant panels 100-21 and 100-22. As described above, the mullions 20-3 are located on the indoor side, and the fire-resistant panels are located on the outdoor side. Therefore, in Fig. 3, the first noncombustible board of the fire-resistant panel 100-21 and the first noncombustible board 204 of the fire-resistant panel 100-22 are located on the outdoor side, and the mullions 20-3 are located on the indoor side.

[0049] The fire-resistant panel 100-21 is fixed to the mullion 20-3 by a first connector 128. As shown in FIG. 3, the mullion 20-3 has a mullion attachment 130. That is, the fire-resistant panel 100-21 is fixed to the mullion 20-3 via the mullion attachment 130. As shown in FIG. 3, the first connector 128 penetrates the second decorative material 122, the second non-combustible board 106, the second fire-resistant covering material 110, the second U-shaped support steel 114, and the first fire-resistant covering material 108 in the Z direction. The penetration of the first connector 128 connects the second decorative material 122, the second non-combustible board 106, the second fire-resistant covering material 110, the second U-shaped support steel 114, and the first fire-resistant covering material 108. The mullion attachment 130 is disposed between the second decorative material 122 and the head of the first connector 128. Additionally, a first washer 132 is disposed between the mullion attachment 130 and the head of the first connector 128 .

[0050] The joint structure includes a fire-resistant panel 100-21, a fire-resistant panel 100-22, and a mating board 134. As shown in FIG. 3, the mating board 134 is disposed between the fire-resistant panels 100-21 and 100-22. The mating board 134 is disposed between the second mating recess 126 of the fire-resistant panel 100-21 and the first mating recess 224 of the fire-resistant panel 100-22. The second mating recess 126 of the fire-resistant panel 100-21 and the first mating recess 224 of the fire-resistant panel 100-22 are disposed facing each other. The first mating recess 224 and the second mating recess 126 are also disposed facing each other. Furthermore, as shown in FIG. 3, the mating board 134 can be fitted into the structure formed by the second mating recess 126 of the fire-resistant panel 100-21 and the first mating recess 224 of the fire-resistant panel 100-22. In other words, the mating board 134 is mated with the first mating recess 224 and the second mating recess 126 .

[0051] Furthermore, since the fitting board 134 is located between the fire-resistant panel 100-21 and the fire-resistant panel 100-22, it is disposed between the honeycomb material 102 of the fire-resistant panel 100-21 and the honeycomb material 202 of the fire-resistant panel 100-22.

[0052] Furthermore, the fitting board 134 can be in contact with at least one of the multiple fire-resistant covering materials of the fire-resistant panel 100-22. As shown in FIG. 3, the fitting board 134 is provided so as to be in contact with the second fire-resistant covering material 210 of the fire-resistant panel 100-22, and is provided between the second fire-resistant covering material 210 and the first decorative material 220 of the fire-resistant panel 100-22. More specifically, as shown in FIG. 3, the fitting board 134 is provided between the second fire-resistant covering material 210 of the fire-resistant panel 100-22 and the fifth portion 220-5 of the first decorative material 220. Therefore, the joint structure has a structure in which the fitting board 134 is sandwiched between the second fire-resistant covering material 210 of the fire-resistant panel 100-22 and the fifth portion 220-5 of the first decorative material 220.

[0053] The interlocking board 134 is disposed between the multiple U-shaped support steel members. As shown in Fig. 3, it is disposed between the second U-shaped support steel member 114 of the fire-resistant panel 100-21 and the first U-shaped support steel member 212 of the fire-resistant panel 100-22. The opening 118 of the second U-shaped support steel member 114 and the opening 216 of the first U-shaped support steel member 212 are disposed on the opposite side of the interlocking board 134.

[0054] The mating board 134 is fixed to the fire-resistant panel 100-22 by a second connector 136. The mating board 134 can also be fixed to the mullion 20-3 by the second connector 136. As shown in FIG. 3 , the second connector 136 penetrates the second decorative material 222 of the fire-resistant panel 100-22, the mating board 134, and the second non-combustible board 206 of the fire-resistant panel 100-22 in the Z direction. The second washer 138 is disposed between the head of the second connector 136 and the fourth decorative material of the fire-resistant panel 100-22. In other words, the second connector penetrates from the outdoor side to the indoor side. The head of the second connector can be spaced from the third portion 120-3 of the first decorative material 120 of the fire-resistant panel 100-21. Therefore, the head of the second connector 136 can be spaced apart from the first noncombustible board 104 and the first fire-resistant covering material 108 of the fire-resistant panel 100-21. In this case, the head of the second connector 136 can have a flat shape.

[0055] The connectors may be, for example, screws or bolts that can secure the fire-resistant panels 100-21, 100-22, and the mating board 134. The washers may be, for example, metal, ceramic, or resin washers that can prevent the connectors from rotating after the fire-resistant panels are secured and prevent the connector heads from falling into the mullions.

[0056] The interlocking board 134 may have a laminated structure. For example, the interlocking board 134 may have a two-layer structure consisting of a non-combustible board 134-1 and a fire-resistant covering material 134-2. As shown in FIG. 3 , the non-combustible board 134-1 is disposed between the first fire-resistant covering material 208 and the second fire-resistant covering material 210 of the fire-resistant panel 100-22. The fire-resistant covering material 134-2 is disposed between the first fire-resistant covering material 208 of the fire-resistant panel 100-22 and the non-combustible board 134-1. In other words, the non-combustible board 134-1 is disposed on the indoor side, and the fire-resistant covering material 134-2 is disposed on the outdoor side. This arrangement improves the waterproofness, strength, and fire resistance of the joint structure. Furthermore, the fire-resistant covering material 134-2 of the interlocking board 134 may have the same configuration as the fire-resistant covering material of the fire-resistant panel 100-22.

[0057] The joint structure has a plurality of gaps. The plurality of gaps in the joint structure is shown in Fig. 4. Fig. 4 shows the dashed frame in Fig. 3.

[0058] The joining structure has a first gap 142, as shown in Fig. 4. The first gap 142 is provided between the lower end of the first noncombustible board 104 of the fire-resistant panel 100-21 and the upper end of the first noncombustible board 204 of the fire-resistant panel 100-22. More specifically, the first gap 142 corresponds to the distance between the lower end of the first decorative material 120 of the fire-resistant panel 100-21 and the upper end of the first decorative material 220 of the fire-resistant panel 100-22. In other words, the first gap 142 is formed by arranging the second portion 120-2 of the first decorative material 120 of the fire-resistant panel 100-21 and the fourth portion 220-4 of the first decorative material 220 of the fire-resistant panel 100-22 at a distance from each other. The first gap 142 can be composed of the second portion 120-2 of the first decorative material 120 of the fire-resistant panel 100-21, the fourth portion 220-4 of the first decorative material 220 of the fire-resistant panel 100-22, and the fifth portion 220-5 of the first decorative material 220 of the fire-resistant panel 100-22. As described above, if the fourth portion 220-4 of the fire-resistant panel 100-22 is inclined and water infiltrates into the first gap 142 from the outside, the infiltrated water fills the first gap 142 but flows down the inclined surface of the fourth portion 220-4 and is discharged to the outside of the first gap 142, i.e., to the outside of the fire-resistant panel 100-21 and the fire-resistant panel 100-22. In this case, the water that infiltrated from the outside may be discharged to the outside of the first gap 142 along the inclined surface of the first gap 142 before filling the first gap 142. 1, the first gap 142 is not filled with a fixing sealant, a covering material, or the like, and the inclined surface of the fourth portion 220-4 of the fire-resistant panel 100-22 that forms the first gap 142 is exposed to the outside. The length of the first gap 142 in the Y direction only needs to be long enough to allow water that has entered from the outside to be drained. Furthermore, the length of the first gap 142 in the Y direction can be adjusted by the length of the fitting board 134 in the Y direction.

[0059] As shown in FIG. 4 , the joint structure has a second gap 144. The second gap 144 is filled or inserted with a first sealant and / or a backup material. Filling the second gap 144 with a first sealant 146 supports the fourth portion 220-4 of the first facing material 220 of the fire-resistant panel 100-22 and secures the mating board 134. The second gap 144 is provided between the first noncombustible board 204 of the fire-resistant panel 100-22 and the mating board 134. The second gap 144 is also provided between the first fire-resistant covering material 208 of the fire-resistant panel 100-22 and the mating board 134, and further between the first fire-resistant covering material 208 of the fire-resistant panel 100-22 and the fire-resistant covering material 134-2 of the mating board 134. Additionally, the second gap 144 is provided below the fourth portion 220-4 of the first facing material 220 of the fire-resistant panel 100-22.

[0060] 4, the joint structure has a third gap 148. The third gap 148 is provided between the first noncombustible board 104 of the fire-resistant panel 100-21 and the fitting board 134. The third gap 148 is also provided between the third portion 120-3 of the first decorative material 120 of the fire-resistant panel 100-21 and the fifth portion 220-5 of the first decorative material 220 of the fire-resistant panel 100-22. The third gap 148 can be formed by the third portion 120-3 of the first decorative material 120 of the fire-resistant panel 100-21, the fifth portion 220-5 of the first decorative material 220 of the fire-resistant panel 100-22, and the first gap 142.

[0061] The third gap 148 can be formed by the first decorative material 120 of the fire-resistant panel 100-21, the fifth portion 220-5 of the first decorative material 220 of the fire-resistant panel 100-22, the first gap 142, and the second sealant 150. Water can enter the third gap 148 from the outside into the mating portion between the fire-resistant panel 110-21 and the fire-resistant panel 100-22. If water enters the third gap 148, as shown in FIG. 4 , the third gap 148 is disposed in the Y direction, and therefore, the water moves to the first gap 142 due to its own weight. The width of the third gap 148 in the Z direction need only be long enough to allow water to move due to its own weight. Furthermore, the distance between the first decorative material 120 constituting the third gap 148 and the fifth portion 220-5 of the first decorative material 220 of the fire-resistant panel 100-22 need only be large enough to prevent infiltrating water from causing capillary action. Therefore, the width of the third gap 148 in the Z direction only needs to be approximately the same as that distance.

[0062] Furthermore, the first gap 142 is connected to the third gap 148. That is, a gap that penetrates in the Y and Z directions is provided. The connection between the first gap 142 and the third gap 148 allows water that penetrates into the fire-resistant panel from the outside to enter the third gap 148 via the first gap 142. Furthermore, water that penetrates from the outside is discharged to the outside from the third gap 148 via the first gap 142 due to its own weight.

[0063] The joint structure may have a fourth gap 152. As shown in Fig. 4, the fourth gap 152 is provided between the second U-shaped support steel member 114 of the fire-resistant panel 100-21 and the fitting board 134, and is filled with a second sealant 150. By filling the fourth gap 152 with the second sealant 150, water that has entered the first gap 142 and the third gap 148 can be prevented from entering the fitting board 134 or from entering the interior of the building through the fitting board 134.

[0064] The joint structure may have a fifth gap 154. As shown in FIG. 4, the fifth gap 154 ​​may be provided between the second non-combustible board 106 of the fire-resistant panel 100-21 and the second non-combustible board 206 of the fire-resistant panel 100-22. The fifth gap 154 ​​may also be provided between the second decorative material 122 of the fire-resistant panel 100-21 and the second decorative material 222 of the fire-resistant panel 100-22. The fifth gap 154 ​​is filled with a third sealant 156. The third sealant 156 acts as a buffer between the second decorative material 122 of the fire-resistant panel 100-21 and the second decorative material 222 of the fire-resistant panel 100-22 and also improves adhesion.

[0065] The joint structure may have a sixth gap 158. As shown in FIG. 4, the sixth gap 158 may be provided between the first U-shaped support steel member 212 of the fire-resistant panel 100-22 and the mating board 134. The sixth gap 158 is filled with a fourth sealant. Filling the fourth sealant 160 allows the mating board 134 to be supported. Furthermore, filling the fourth sealant 160 allows the first sealant 146 disposed between the fourth sealant 160 and the first decorative member 220 of the fire-resistant panel 100-22 to be supported.

[0066] 3-2. Cross-sectional structure 2 Fig. 5 is a schematic cross-sectional view taken along the chain line B1-B2 in Fig. 1. This diagram shows the joint structure between the fire-resistant panels 100-21 and 100-11, and the mullions 20-2 that support the fire-resistant panels 100-21 and 100-11.

[0067] The fire-resistant panel 100-21 is fixed to the mullion 20-2 by a third connector 162. As shown in FIG. 5, the mullion 20-2 has a mullion attachment 330. That is, the fire-resistant panel 100-21 is fixed to the mullion 20-2 via the mullion attachment 330. As shown in FIG. 5, the third connector 162 penetrates the second decorative material 122, the second non-combustible board 106, the second fire-resistant covering material 110, the first U-shaped support steel 112, and the first fire-resistant covering material 108 in the Z direction. This penetration of the third connector 162 connects the second decorative material 122, the second non-combustible board 106, the second fire-resistant covering material 110, the first U-shaped support steel 112, and the first fire-resistant covering material 108. The mullion attachment 330 is disposed between the second decorative material 122 and the head of the third connector 162. Additionally, a third washer 164 is disposed between the mullion attachment 330 and the head of the third connector 162 .

[0068] The fire-resistant panel 100-11 is fixed to the mullion 20-2 by the fourth connector 166. As shown in FIG. 5, the mullion 20-2 has a mullion attachment 230. The fire-resistant panel 100-11 is fixed to the mullion 20-2 via the mullion attachment 230. The fourth connector 166 penetrates the second decorative material 322, second non-combustible board 306, second fire-resistant covering material 310, first U-shaped support steel material 312, and first fire-resistant covering material 308 of the fire-resistant panel 100-11 in the Z direction, as shown in FIG. 5. By passing through these holes, the fourth connector 166 connects the second decorative material 322, second non-combustible board 306, second fire-resistant covering material 310, first U-shaped support steel material 312, and first fire-resistant covering material 308 of the fire-resistant panel 100-11 in the Z direction, as shown in FIG. 5. The mullion attachment 230 is disposed between the second decorative element 322 and the head of the fourth connector 166. In addition, the fourth washer 168 is disposed between the mullion attachment 230 and the head of the fourth connector 166.

[0069] As shown in Fig. 5, a sealant 170 and a sealant 172 are provided between the fire-resistant panel 100-21 and the fire-resistant panel 100-11, respectively. As shown in Fig. 5, the sealant 170 is provided on the outdoor side, and the sealant 172 is provided on the indoor side. The sealant 170 can correspond to the vertical joint 40-1 shown in Fig. 1.

[0070] As described above, the panel joint 174 can be used to join multiple fire-resistant panels. As shown in FIG. 5, the panel joint 174 can be provided between the fire-resistant panels 100-21 and 100-11 and can be used to join the fire-resistant panels 100-21 and 100-11. As described above, the panel joint 174 can also be provided vertically between multiple fire-resistant panels along the mullion 20-2, such as the fire-resistant panels 100-21 to 100-23 and the fire-resistant panels 100-11 to 100-13 shown in FIG. 1. The panel joint 174 can be disposed between the first U-shaped support steel member 112 of the fire-resistant panel 100-21 and the first U-shaped support steel member 312 of the fire-resistant panel 100-11. A sealant 178 can be provided between the panel joint 174 and the honeycomb material 102 of the fire-resistant panel 100-21. A sealant 180 can be provided between the panel joint 174 and the honeycomb material 302 of the fire-resistant panel 100-11. The sealant 178 and the sealant 180 can be provided so as to sandwich the panel joint 174 therebetween.

[0071] The panel joint 174 is fixed to the mullion 20-2 by a fifth connector 176. As shown in FIG. 5 , the fifth connector 176 penetrates the panel joint 174, the sealant 172, and the mullion 20-2. The fifth connector 176 can be disposed between the fire-resistant panel 100-21 and the fire-resistant panel 100-11, and the head of the fifth connector 176 can be disposed between the first U-shaped support steel member 112 of the fire-resistant panel 100-21 and the first U-shaped support steel member 312 of the fire-resistant panel 100-11. The head of the fifth connector 176 can have a flat shape. A fifth washer 182 can be provided between the head of the fifth connector 176 and the panel joint 174. In other words, the head of the fifth connector 176 can be disposed on the outdoor side and penetrate the panel joint 174 from the outdoor side toward the indoor side.

[0072] The panel joint 174 may include a non-combustible board and a fire-resistant covering material. For example, as shown in Fig. 5, the panel joint 174 may be provided by stacking a non-combustible board 174-1 and a fire-resistant covering material 174-2. The fire-resistant covering material 174-2 is disposed between the first non-combustible board 104 of the fire-resistant panel 100-21 and the non-combustible board 174-1.

[0073] 4. Joint structure assembly method 6 to 10 show a method for assembling the joint structure between the fire-resistant panel 100-21 and the fire-resistant panel 100-22. The following description will be given with reference to FIGS.

[0074] FIG. 6 shows the process of installing the fire-resistant panel 100-22 on the mullion 20-3. The fire-resistant panel 100-22 is installed with its second non-combustible board 106 facing the outdoor side of the mullion 20-3. At this time, the fire-resistant panel 100-22 is installed lower in the Y direction than the mullion attachment 130. Next, the fourth sealant 160 is installed on the first U-shaped support steel 112, and then the first sealant 146 is installed on the fourth sealant 160. At this time, the first sealant 146 is installed below the first decorative member 120. As described above, the first sealant 146 and the fourth sealant 160 may be installed on the first U-shaped support steel 112 before installing the fire-resistant panel 100-22 on the mullion 20-3.

[0075] 7 shows the process of attaching the mating board 134 to the fire-resistant panel 100-22. The non-combustible board 134-1 of the mating board 134 faces the interior, and the fire-resistant covering material 134-2 of the mating board 134 faces the exterior. Next, the mating board 134 is placed on the fourth sealant 160. At this time, the mating board 134 is placed so that it is positioned between the first sealant 146 and the second non-combustible board 206 of the fire-resistant panel 100-22.

[0076] 8 shows the process of fixing the fitting board 134 to the fire-resistant panel 100-22. The head of the second connector 136 is oriented toward the exterior of the fire-resistant panel 100-22, and the tip of the second connector 136 is oriented toward the mullion 20-3. Next, a second washer 138 is threaded onto the threaded portion of the second connector 136, and the tip of the second connector 136 is screwed toward the mullion 20-3. At this time, the second connector 136 is screwed in so as to penetrate, in order, the fifth portion 220-5 of the first decorative material 220 of the fire-resistant panel 100-22, the fitting board 134, the second noncombustible board 206, and the mullion 20-3.

[0077] FIG. 9 shows the process of installing the fire-resistant panel 100-21 on the mullion 20-3. The second non-combustible board 106 of the fire-resistant panel 100-21 faces the outdoor side of the mullion 20-3. At this time, the second U-shaped support steel member 114 of the fire-resistant panel 100-21 faces the fitting board 134. The fire-resistant panel 100-21 is installed on the mullion 20-3 so that the second U-shaped support steel member 114 of the fire-resistant panel 100-21 is positioned on the fitting board 134. At this time, the second U-shaped support steel member 114 is installed so that it is at the same height as the mullion attachment 130 in the Y direction. As described above, the second sealant 150 is installed in advance on the side opposite the opening 118 of the second U-shaped support steel member 114.

[0078] FIG. 10 shows the process of fastening the fire-resistant panel 100-21 to the mullion 20-3. The head of the first connector 128 faces indoors, and the tip of the first connector 128 faces outdoors. Next, a first washer 132 is threaded onto the threaded portion of the first connector 128, and the first connector 128 is screwed onto the fire-resistant panel 100-21 via the mullion attachment 130. The first connector 128 is screwed in so as to penetrate, in order, the mullion attachment 130, the second decorative material 122 of the fire-resistant panel 100-21, the second U-shaped support steel member 114 of the fire-resistant panel 100-21, and the fifth portion 120-5 of the first decorative material 120 of the fire-resistant panel 100-21. The first connector 128 may also penetrate the first fire-resistant covering material 108 of the fire-resistant panel 100-21.

[0079] Next, the third sealant 156 is injected between the second decorative material 122 of the fire-resistant panel 100-21 and the second decorative material 222 of the fire-resistant panel 100-22. At this time, the third sealant 156 is injected between the second decorative material 122 of the fire-resistant panel 100-21 and the second decorative material 222 of the fire-resistant panel 100-22 from inside the building where the mullion 20-3 is located.

[0080] Through the above steps, a joined structure of the fireproof panel 100-21 and the fireproof panel 100-22 can be obtained.

[0081] In the joint structure of the fire-resistant panels, a joint board is provided between the fire-resistant panels 100-21 and 100-22, and these fire-resistant panels have a laminated structure of a first non-combustible board 104 and a first fire-resistant covering material 108. Furthermore, these fire-resistant panels have a pair of laminated structures, and the pair of laminated structures have a structure in which a honeycomb material 102 is sandwiched between them as a core. In this case, by placing the first fire-resistant covering material 108 on the side of the honeycomb material 102, which is the core, and the first non-combustible board 104 on the outside thereof, the fire resistance, bendability, and wind pressure resistance of the fire-resistant panels are also improved.

[0082] Furthermore, in the joint structure of the fire-resistant panels, a first gap and a third gap are provided on the outdoor side between the fire-resistant panels 100-21 and 100-22, and these gaps are joined. With this joint structure, even if water infiltrates the first gap and the third gap from the outdoor side, the infiltrating water is discharged to the outside of the first gap and the third gap. Therefore, by applying this embodiment, a waterproof effect can be obtained, and a highly reliable exterior wall can be provided at low cost.

[0083] Even if there are other effects and advantages different from those brought about by the aspects of each of the above-mentioned embodiments, those that are clear from the description in this specification or that can be easily predicted by a person skilled in the art are naturally understood to be brought about by the present invention.

[0084] In this specification, the disclosed examples mainly concern exterior walls using fire-resistant panels, but other application examples include other partition walls, etc. Furthermore, the present invention can be applied to office buildings, commercial facilities, production plants, medical and welfare facilities, apartment buildings, and even logistics warehouses, without any particular limitations. [Explanation of symbols]

[0085] 10: Fireproof exterior wall, 20: Mullet, 20-2: Mullet, 20-3: Mullet, 20-4: Mullet, 30: Horizontal joint, 30-1: Horizontal joint, 30-2: Horizontal joint, 40: Vertical joint, 40-1: Vertical joint, 40-2: Vertical joint, 100: Fireproof panel, 100-11: Fireproof panel, 100-12: Fireproof panel, 100-21: Fireproof panel, 100-22: Fireproof panel, 100-23: Fireproof panel, 102: Honeycomb material, 104: First non-combustible board, 104-1: First surface, 104-2: Second surface, 104-3: First end, 104-4: Second end, 106: Second non-combustible board, 106-1: First surface, 10 6-2: second surface, 106-3: first end, 106-4: second end, 108: first fire-resistant covering material, 110: second fire-resistant covering material, 110-21: fire-resistant panel, 112: first U-shaped support steel, 114: second U-shaped support steel, 116: opening, 118: opening, 120: first decorative material, 120-1: first part, 120-2: second inclined part: second decorative material: second part, 120-3: third decorative material, 120-3: third part, 120-4: fourth decorative material: first inclined part, 120-4: fourth part, 120-5: fifth part, 120-5: fifth decorative material, 120-6: first end, 120-7: second end, 1 22: second decorative material, 124: first fitting recess, 126: second fitting recess, 128: first connector, 130: mullion attachment, 132: first washer, 134: fitting board, 134-1: non-combustible board, 134-2: fire-resistant covering material, 136: second connector, 138: second washer, 142: first gap, 144: second gap, 146: first sealing material, 148: third gap, 150: second sealing material, 152: fourth gap, 154: fifth gap, 156: third sealing material, 158: sixth gap, 160: fourth sealing material, 162: third connector, 164: third washer, 166: fourth connector , 168: fourth washer, 170: sealing material, 172: sealing material, 174: panel joint, 174-1: non-combustible board, 174-2: fire-resistant covering material, 176: fifth connector, 178: sealing material, 180: sealing material, 182: fifth washer, 202: honeycomb material, 204: first non-combustible board, 206: second non-combustible board, 208: first fire-resistant covering material, 210: second fire-resistant covering material, 212: first U-shaped support steel material, 216: opening, 220: first decorative material, 220-4: fourth part, 220-5: fifth part, 222: second decorative material, 224: first fitting recess, 230: mullion attachment,302: Honeycomb material, 306: Second non-combustible board, 308: First fire-resistant covering material, 310: Second fire-resistant covering material, 312: First U-shaped supporting steel material, 322: Second decorative material, 330: Mullion attachment,

Claims

1. a first non-combustible board and a second non-combustible board having a first surface and a second surface; a first fire-resistant covering material covering the second surface of the first noncombustible board; a second fire-resistant covering material covering a second surface of the second noncombustible board; a honeycomb material between the first non-combustible board and the second non-combustible board; The second surface of the first noncombustible board and the second surface of the second noncombustible board are disposed opposite each other, First ends of the first non-combustible board and the second non-combustible board and second ends positioned opposite to the first ends of the first non-combustible board and the second non-combustible board protrude outward from an end of the honeycomb material, A fire-resistant panel, wherein the length by which the first end of the second non-combustible board protrudes from the honeycomb material is longer than the length by which the first end of the first non-combustible board protrudes from the honeycomb material.

2. a first U-shaped support steel member disposed on a side of the honeycomb material on which the first noncombustible board and the second noncombustible board are disposed, and extending along the first ends of the first noncombustible board and the second noncombustible board; a second U-shaped support steel member that is disposed on the second end side of the first noncombustible board and the second noncombustible board with respect to the honeycomb material and that extends along the second ends of the first noncombustible board and the second noncombustible board, The first U-shaped support steel material and the second U-shaped support steel material are arranged between the first non-combustible board and the second non-combustible board, The first U-shaped support steel member and the second U-shaped support steel member sandwich the honeycomb material. The fire-resistant panel of claim 1.

3. a first fitting recess formed in an area surrounded by the first noncombustible board, the second noncombustible board, and the first U-shaped support steel material on the side of first ends of the first noncombustible board and the second noncombustible board; a second fitting recess formed in an area surrounded by the first noncombustible board, the second noncombustible board, and the second U-shaped support steel material on the second end side of the first noncombustible board and the second noncombustible board, The honeycomb material is disposed between the first fitting recess and the second fitting recess. The fire-resistant panel of claim 2.

4. a first end portion that covers a first surface of the first noncombustible board, bent at the first end side of the first noncombustible board so as to cover the ends of the first noncombustible board and the first fire-resistant covering material, and further extending in a direction from the second end of the first noncombustible board toward the first end of the first noncombustible board; and a first decorative material that bends at the second end side of the first noncombustible board so as to cover the ends of the first noncombustible board and the first fire-resistant covering material, and further bends so as to cover the second surface of the first noncombustible board; a second decorative material that covers a first surface of the second noncombustible board, bends on the side of a first end of the second noncombustible board to cover the ends of the second noncombustible board and the second fire-resistant covering material, and bends on the side of a second end of the second noncombustible board to cover the ends of the second noncombustible board and the second fire-resistant covering material. The fire-resistant panel according to claim 3.

5. The first decorative material has a bent portion that covers the ends of the first non-combustible board and the first fire-resistant covering material, and the bent portion forms an inclined surface that is inclined so that the first surface side of the first non-combustible board is lower than the second surface side of the first non-combustible board in a direction from the second end of the first non-combustible board to the first end of the first non-combustible board. The fire-resistant panel according to claim 4.

6. A first fire-resistant panel and a second fire-resistant panel having the structure according to claim 4 or 5; a mating board; the first fire-resistant panel and the second fire-resistant panel are disposed so as to face each other; the mating board is fitted into the first mating recess and the second mating recess; Joint structure of fire-resistant panels.

7. a first portion of the first decorative material covering a second end of the first noncombustible board of the first fire-resistant panel and an inclined surface of the first decorative material of the second fire-resistant panel are disposed apart from each other; The inclined surface of the first decorative material of the second fire-resistant panel is exposed to the outside. The joint structure of fire-resistant panels according to claim 6.

8. A first fire-resistant panel and a second fire-resistant panel having the structure described in any one of claims 3 to 5; a mating board; the first fire-resistant panel and the second fire-resistant panel are disposed so as to face each other; the mating board is fitted into the first mating recess and the second mating recess; Joint structure of fire-resistant panels.

9. a gap between the first fire-resistant covering material of the second fire-resistant panel and the mating board; A sealing material or a backup material is inserted into the gap. The joint structure of fire-resistant panels according to claim 8.

10. the fitting board is sandwiched between the honeycomb material of the first fire-resistant panel and the honeycomb material of the second fire-resistant panel, and between the first decorative material of the second fire-resistant panel and the second fire-resistant covering material of the second fire-resistant panel; The joint structure of fire-resistant panels according to claim 6.

Images