Method of constructing partition walls

Abstract

This invention provides a method for constructing partition walls that allows for adjustment of dimensional errors during the construction of the partition walls. [Solution] A method for constructing a partition wall formed by fitting multiple panels together in the width direction includes: a first step of installing a first reference panel 1' at a first reference position; a second step of installing a second reference panel 1' at a second reference position; a third step of installing multiple intermediate panels 1, 1a, 1b, 1 in the space between the first reference panel 1' and the second reference panel 1'; and a fourth step of installing a sealing structure 8 in the gap between the ends of the intermediate panels 1a, 1b formed by the third step.

Description

Technical Field

[0001] The present invention relates to a method for constructing a partition wall.

Background Art

[0002] The internal space of buildings such as factories and logistics warehouses is vast, and a fire-resistant partition wall is installed at a predetermined location to divide the internal space. A fire-resistant partition wall formed by fitting a plurality of fire-resistant panels in the width direction is known. As the fire-resistant panel forming the fire-resistant partition wall, a panel having a sandwich structure with a pair of surface materials and a fire-resistant core material provided between the surface materials is known (Patent Documents 1 and 2).

[0003] The fire-resistant partition walls disclosed in Patent Documents 1 and 2 are formed by fitting a plurality of fire-resistant panels in the width direction. However, due to dimensional errors caused by tolerances on the building side such as beam positions and uneven floors, tolerances in panel manufacturing, and fitting conditions during panel installation, the panels may not be assembled as per the construction drawings (the panels may not fit, gaps may occur between the panels, etc.).

Patent Document 1

Patent Document 2

Disclosure of the Invention

Problems to be Solved by the Invention

[0004] An object of the present invention is to provide a method for constructing a partition wall capable of adjusting dimensional errors during the construction of the partition wall.

Means for Solving the Problems

[0006] In one embodiment, the sealing structure is formed by filling the gap with a filler and covering the front and back of the gap with a pair of sealing plates. In a specific example of the procedure, the sealing structure is formed by attaching one sealing plate, filling it with a filler material, and then attaching the other sealing plate. The forward surface of the filler material in the sealing structure abuts against the ends (forward surfaces) of the left and right panels that form the gap. If the end faces of the panels are flat, the forward surface of the filler material that abuts against the flat surface is flat. If the end faces of the panels are uneven, the forward surface of the filler material that abuts against the uneven surface is uneven. In one embodiment, there is one gap, but two gaps may be formed, and a sealing structure may be installed in each gap.

[0007] In one embodiment, the third step includes fitting one or more intermediate panels onto the first reference panel toward the second reference position, and fitting one or more intermediate panels onto the second reference panel toward the first reference position, The fourth step involves installing a sealing structure in the gap between the ends of the intermediate panels. In one embodiment, at least one of the intermediate panels installed in the third step is a narrow intermediate panel that has been partially cut off.

[0008] In one embodiment, the first reference position and the second reference position are either "positions defined by walls," "positions defined by beams," or "positions defined by openings." In one embodiment, at least one of the first reference panel and the second reference panel is cut out to correspond to a beam. In one embodiment, an opening is formed in at least one of the first reference panel and the second reference panel.

[0009] In one embodiment, in a method for constructing a partition wall formed by fitting multiple panels together in the width direction, The first and second reference positions are set spaced apart in the width direction. A first step involves setting a first reference panel at a first reference position and fitting one or more intermediate panels toward the second reference position onto the first reference panel, A second step involves installing a second reference panel at a second reference position and fitting one or more intermediate panels onto the second reference panel toward the first reference position. A third step involves setting up a sealing structure in the gap formed between the intermediate panel installed in the first step and the intermediate panel installed in the second step, This includes the construction method for partition walls. In one embodiment, the sealing structure is formed by filling the gap with a filler and covering the front and back of the gap with a pair of sealing plates. In a specific example of the procedure, the sealing structure is formed by attaching one sealing plate, filling it with a filler material, and then attaching the other sealing plate. [Effects of the Invention]

[0010] The present invention relates to a method of constructing a partition wall, which is formed by fitting multiple panels together in the width direction, as a panel structure that includes a closing structure. Since dimensional errors during the construction of the partition wall can be adjusted with this panel structure, it is possible to accommodate a variety of panel configurations and improve constructability. [Brief explanation of the drawing]

[0011] [Figure 1] This is a front view of a fire-resistant partition wall (a single-block structure) according to this embodiment. [Figure 2] This is a front view of the fire-resistant partition wall (two sealing structures) according to this embodiment. [Figure 3] This is a cross-sectional view of a fire-resistant partition wall according to this embodiment, where (A) corresponds to Figure 1 and (B) corresponds to Figure 2, but note that the ratio of the width dimensions does not match. [Figure 4] This is a longitudinal cross-sectional view of a fire-resistant panel of a fire-resistant partition wall according to this embodiment. [Figure 5] This is a vertical cross-sectional view of the sealing structure of the fire-resistant partition wall according to this embodiment (the end of the sealing structure in the width direction, which is the part outside the filler material). [Figure 6] This is a magnified view of the central part of Figure 5. [Figure 7] This is a magnified view of the upper part of Figure 5. [Figure 8] This is a magnified view of the lower part of Figure 5. [Figure 9]Cross-sectional view of the plugging structure (first form of the plugging plate). [Figure 10] Cross-sectional view of the plugging structure (second form of the plugging plate). [Figure 11] Cross-sectional view of the plugging structure (third form of the plugging plate). [Figure 12] Cross-sectional view of a panel structure including one plugging structure, showing some aspects of the expected surface of the plugging structure, the expected surface of the fire-resistant panel, and the contact structure. [Figure 13] Cross-sectional view of a panel structure including two plugging structures, showing some aspects of the expected surface of the plugging structure, the expected surface of the fire-resistant panel, and the contact structure. [Figure 14] Diagram for explaining the construction method of the fire-resistant partition wall (first aspect) according to the present embodiment. [Figure 14A] Diagram showing the state before installing the plugging structure in FIG. 14. [Figure 15] Diagram for explaining the construction method of the fire-resistant partition wall (second aspect) according to the present embodiment. [Figure 16] Diagram for explaining the construction method of the fire-resistant partition wall (third aspect) according to the present embodiment. [Figure 17] Diagram for explaining the construction method of the fire-resistant partition wall (fourth aspect) according to the present embodiment. [Figure 18] Diagram for explaining the construction method of the fire-resistant partition wall (fifth aspect) according to the present embodiment. [Figure 19] Longitudinal sectional view of the plugging structure according to the present embodiment (the part outside the filler at the end in the width direction of the plugging structure). [Figure 20] Partial enlarged view of the central part of FIG. 19. [Figure 21] Longitudinal sectional view of the plugging structure according to the present embodiment. [Figure 22] Partial enlarged view of the first side of the central part of FIG. 21. [Figure 23] Partial enlarged view of the first side of the upper part of FIG. 21. [Figure 24] Partial enlarged view of the first side of the lower part of FIG. 21. [Figure 25]This figure shows the cover plate according to this embodiment; the left figure shows the upper element, and the right figure shows the lower element. Note that the ratio of the height dimension to the width dimension does not correspond to the actual ratio. [Figure 26] This diagram shows the assembled state of the upper and lower elements. [Figure 27] This diagram shows the positional relationship between the upper element and the upper fixing member. [Figure 28] This diagram shows the positional relationship between the lower element and the lower fixing member. [Figure 29] This figure shows a method for replacing a fire-resistant panel according to this embodiment (first embodiment). [Figure 30] This figure shows a method for replacing a fire-resistant panel according to this embodiment (second embodiment). [Figure 31] This figure illustrates several embodiments of a sealing plate used in the repair of a fire-resistant panel according to this embodiment. [Figure 32] This figure illustrates a second aspect of the method for repairing a fire-resistant panel according to this embodiment. [Figure 33] This figure illustrates a first embodiment of the fire-resistant panel repair method according to this embodiment (forming an opening on only one side). [Figure 34] This figure illustrates the first aspect (forming a through-hole) of the fire-resistant panel repair method according to this embodiment. [Figure 35] This figure illustrates a third aspect of the method for repairing a fire-resistant panel according to this embodiment. [Figure 36] This figure illustrates a third aspect of the method for repairing a fire-resistant panel according to this embodiment. [Figure 37] (A) is a cross-sectional view of a standard fire-resistant panel, (B) is a diagram illustrating the cutting of the panel to be replaced, and (C) is a diagram showing the dividing elements for the panel to be replaced. [Modes for carrying out the invention]

[0012] [A] Fire-resistant partition wall [A-1] Overall configuration As shown in Figures 1 to 5, the fire-resistant partition wall according to this embodiment is formed from a plurality of fire-resistant panels 1 (in this specification, fire-resistant panels are collectively referred to as reference number "1") arranged in a series in the width direction, and a sealing structure 8 formed between predetermined fire-resistant panels 1. The fire-resistant partition wall is installed to seal off the space formed by the left and right side walls W, the ceiling CL, and the floor surface FL. Conventional fire-resistant partition walls consist only of a plurality of fire-resistant panels arranged in a series in the width direction, whereas the fire-resistant partition wall according to this embodiment differs in that it is equipped with a sealing structure 8 in part.

[0013] Upper fixing members 2 are provided on the ceiling CL, lower fixing members 3 are provided on the floor FL, and lateral fixing members 5 are provided on the left and right side walls W. In the fire-resistant partition wall, the upper end portion of each fire-resistant panel 1 is fixed to the upper fixing member 2 in such a manner that no gaps are created, the lower end portion is fixed to the lower fixing member 3 in such a manner that no gaps are created, and one end of the fire-resistant panel 1 in the width direction located at the left and right ends is fixed to the lateral fixing member 5 in such a manner that no gaps are created. On the adjacent side end faces or front faces of adjacent fire-resistant panels 1, one front face and the other front face are shaped to fit together, and the front faces of adjacent fire-resistant panels 1 fit together in the width direction in such a manner that no gaps are created.

[0014] The upper end portion of the sealing structure 8 is in contact with (or may be fixed to) the upper fixing member 2 in such a manner that no gap is created, and the lower end portion of the sealing structure 8 is in contact with (or may be fixed to) the lower fixing member 3 in such a manner that no gap is created. The facing surface of the sealing structure 8 and the side end surface or facing surface of the adjacent fire-resistant panel 1 are in contact or in close contact in such a manner that no gap is created. The facing surface of the sealing structure 8 and the facing surface of the adjacent fire-resistant panel 1 may be in contact with each other as flat surfaces or as fitting surfaces.

[0015] In the configuration shown in Figures 1 and 3(A), a partition wall is formed by connecting fire-resistant panels 1a and 1b, a sealing structure 8 provided between fire-resistant panels 1a and 1b, and fire-resistant panels 1d located at the left and right ends in the width direction. The left-side facing surface of the fire-resistant panel 1d located at the left end is attached to the left side wall W via an insulating material 4. The left-side facing surface of fire-resistant panel 1a is fitted into the right-side facing surface of the left fire-resistant panel 1d from the width direction. The right-side facing surface of the fire-resistant panel 1d located at the right end is attached to the right side wall W via an insulating material 4. The right-side facing surface of fire-resistant panel 1b is fitted into the left-side facing surface of the right fire-resistant panel 1d from the width direction.

[0016] A gap is formed between the right-side facing surface of fire-resistant panel 1a and the left-side facing surface of fire-resistant panel 1b, and a sealing structure 8 is installed in the gap. More specifically, the gap is filled with a filler material 7, and a pair of front and rear sealing plates 6 (6A, 6B) are fixed so as to span between fire-resistant panels 1a and 1b, covering the gap from the first and second sides. In the embodiment shown in Figure 3(A), the facing surface of the sealing structure 8 and the corresponding facing surface 16 of fire-resistant panel 1 are flat surfaces, and the flat surfaces are in close contact with each other.

[0017] In the configuration shown in Figures 2 and 3(B), a partition wall is formed by connecting fire-resistant panels 1a, 1b, and 1c, a sealing structure 8 provided between fire-resistant panels 1a and 1c, another sealing structure 8 provided between fire-resistant panels 1b and 1c, and fire-resistant panels 1d located at the left and right ends in the width direction. The left-side facing surface of the fire-resistant panel 1d located at the left end is attached to the left side wall W via an insulating material 4. The left-side facing surface of fire-resistant panel 1a is fitted into the right-side facing surface of the left fire-resistant panel 1d from the width direction. The right-side facing surface of the fire-resistant panel 1d located at the right end is attached to the right side wall W via an insulating material 4. The right-side facing surface of fire-resistant panel 1b is fitted into the left-side facing surface of the right fire-resistant panel 1d from the width direction.

[0018] A gap is formed between the right-side facing surface of fire-resistant panel 1a and the left-side facing surface of fire-resistant panel 1c, and a sealing structure 8 is installed in the gap. More specifically, the gap is filled with a filler material 7, and a pair of front and rear sealing plates 6 (6A, 6B) are fixed so as to straddle the gap between fire-resistant panels 1a and 1c, covering the gap from the first and second sides. A gap is formed between the left-side facing surface of fire-resistant panel 1b and the right-side facing surface of fire-resistant panel 1c, and a sealing structure 8 is installed in the gap. More specifically, the gap is filled with an insulating material 7, and a pair of front and rear sealing plates 6 (6A, 6B) are fixed so as to straddle the gap between fire-resistant panels 1b and 1c, covering the gap from the first and second sides. In the embodiment shown in Figure 3(B), the facing surface of the sealing structure 8 and the corresponding facing surface 16 of fire-resistant panel 1 are flat surfaces, and the flat surfaces are in close contact with each other. The configuration shown in Figures 2 and 3(B) can be understood as a structure in which the space between fire-resistant panels 1a and 1b is sealed by a pair of left and right sealing structures 8 and fire-resistant panel 1c.

[0019] [A-2] Fire-resistant panel The configuration of the fire-resistant panel 1 will now be described in detail. As shown in Figures 4 and 37(A), the fire-resistant panel 1 comprises a first surface material forming a first visible surface 10A, a second surface material forming a second visible surface 10B, and a fire-resistant core material 11 filled in the space between the first visible surface 10A and the second visible surface 10B. The visible surfaces of the fire-resistant panel 1 are collectively referred to as "10," and "10A" and "10B" are used to distinguish between the first and second sides. The first and second surface materials of the fire-resistant panel 1 according to this embodiment are formed from steel plates, and rock wool can be used as an example of the fire-resistant core material 11.

[0020] The first visible surface 10A and the second visible surface 10B are spaced apart and opposite each other in the depth direction of the fire-resistant partition wall, forming the visible surface of the fire-resistant partition wall. The upper end surface 12 of the fire-resistant panel 1 is formed from the upper ends of the first and second surface materials and the upper end surface of the fire-resistant core material 11. The lower end surface 13 of the fire-resistant panel 1 is formed from the lower ends of the first and second surface materials and the lower end surface of the fire-resistant core material 11.

[0021] The front surface of the fire-resistant panel 1 is formed from the side edges of the first and second surface materials and the side end surface of the fire-resistant core material 11. In this embodiment, there are three types of front surfaces of the fire-resistant panel 1, which are identified herein by the terms front surface 14, front surface 15, and front surface 16. As shown in Figure 37, front surface 14 is a front surface in which recesses 140 (a pair of recesses 140 in the illustrated embodiment) are formed, and is uneven in plan view. Front surface 15 is a front surface in which protrusions 150 (a pair of protrusions 150 in the illustrated embodiment) are formed, and is uneven in plan view. Front surface 16 is a flat surface. Front surface 16 is typically formed by cutting a standard panel. The recesses 140 and protrusions 150 of front surfaces 14 and 15 are interlocking. One of the fire-resistant panels 1 is a front surface 14, and the other is a front surface 15, and the fire-resistant panels 1 can be fitted together in the width direction to be connected. The front surfaces 14 and 15 have grooves 170 into which a joint filler material 17 fits, and the front surfaces 14 and 15 of adjacent fire-resistant panels 1 are fitted together in a state where the convex portion 150 and the concave portion 140 fit together (a so-called rabbet structure), and the joint filler material 17 is further fitted so as to span between the front surfaces 14 and 15. The joint filler material 17 is made of, for example, calcium silicate board or gypsum board. For details on the fitting and connecting configuration of the fire-resistant panels 1, refer to, for example, the disclosures in Patent Documents 1 and 2.

[0022] [A-3] Fixing of the upper fixing member to the upper end of the fire-resistant panel A pair of upper fixing members 2 (2A, 2B) are positioned opposite each other in the depth direction on the ceiling CL and extend in the width direction of the fire-resistant panel 1 across the left and right side walls W. Each upper fixing member 2 is a long, plate-like element made of steel, and has a horizontal piece 21 fixed to the ceiling CL and a visible piece 20 hanging down from the horizontal piece 21, with the visible pieces 20 spaced apart and facing each other in the depth direction. In one embodiment, the upper fixing member 2 is formed by connecting a plurality of short elements (for example, corresponding to the width dimension of the fire-resistant panel 1) in the width direction, and each short element is removable.

[0023] The upper end of the first visible surface 10A of the fire-resistant panel 1 is fixed with a screw S2 while in contact with the back surface of the lower end of the visible piece 20 of the upper fixing member 2A. The upper end of the second visible surface 10B of the fire-resistant panel 1 is fixed with a screw S2 while in contact with the back surface of the lower end of the visible piece 20 of the upper fixing member 2B. The space enclosed by the visible piece 20 of the upper fixing member 2A, the visible piece 20 of the upper fixing member 2B, the upper end surfaces 12 of each fire-resistant panel 1, and the ceiling CL is filled with fire-resistant insulation material 4 extending between the left and right side walls W (see Figures 4 and 5). The insulation material 4 consists of bio-soluble fibers used as fire-resistant insulation material, but the specific material of the insulation material is not limited to this.

[0024] [A-4] Fixing of the lower fixing member to the lower end of the fire-resistant panel On the floor surface FL, a pair of lower fixing members 3 (3A, 3B) are positioned opposite each other in the depth direction and extend in the width direction of the fire-resistant panel 1 across the left and right side walls W. Each lower fixing member 3 is a long, plate-like element made of steel, and has a cross-sectional L-shape consisting of a horizontal piece 31 fixed to the floor surface FL and a visible piece 30 rising vertically from the horizontal piece 31, with the visible pieces 30 spaced apart and facing each other in the depth direction. In one embodiment, the lower fixing member 3 is formed by connecting a plurality of short elements (for example, corresponding to the width dimension of the fire-resistant panel 1) in the width direction, and each short element is removable.

[0025] The lower end portion of the first visible surface 10A of the fire-resistant panel 1 is fixed with screws S3 while in contact with the back surface of the visible piece 30 of the lower fixing member 3A. The lower end portion of the second visible surface 10B of the fire-resistant panel 1 is fixed with screws S3 while in contact with the back surface of the visible piece 30 of the lower fixing member 3B. The lower surface 13 of the fire-resistant panel 1 is placed on the floor surface FL.

[0026] [A-5] Fixing of the lateral fixing member to the side edge of the fire-resistant panel On the left and right side walls W, a pair of lateral fixing members 5 (5A, 5B) are positioned opposite each other in the depth direction and extend along the left and right side walls W in the height direction of the fire-resistant panel 1. The lateral fixing members 5 are long, plate-shaped elements made of steel, and have an L-shape in cross-section, consisting of a depth piece 51 fixed to the side wall W and a face piece 50 extending perpendicularly to the depth piece 51 toward the other side wall W, with the face pieces 50 facing each other spaced apart in the depth direction. Note that the lateral fixing members 5 may consist of multiple elements connected in the height direction.

[0027] The lateral portion of the first visible surface 10A of the fire-resistant panel 1d located at the end is fixed with screws S4 while in contact with the visible piece 50 of the lateral fixing member 5A from the back. The lateral portion of the second visible surface 10B of the fire-resistant panel 1d is fixed with screws S4 while in contact with the lower end portion of the visible piece 50 of the lateral fixing member 5B from the back. The space enclosed by the visible surface 16 on the side wall W side of the fire-resistant panel 1d, the side wall W, and the pair of visible pieces 50 is filled with fire-resistant insulation material 4. The insulation material 4 consists of bio-soluble fibers used as fire-resistant insulation material, but the specific material of the insulation material is not limited to this.

[0028] The fire-resistant panels 1 that form the fire-resistant partition wall are, in principle, made up of multiple identical panels (standard panels of the same width, with a front surface 14 and a front surface 15), and when necessary, they are cut into narrower panels on-site and installed. For example, the end panel 1d has a front surface 16 made of a flat surface formed by cutting one side in the width direction in the height direction.

[0029] [A-6] Blocking structure [A-6-1] Overall configuration A sealing structure 8 is formed to seal the gap between the left and right fire-resistant panels 1, which are spaced apart in the width direction. Details of the sealing structure 8 according to this embodiment are mainly shown in Figures 5 to 11 and Figures 19 to 24. The sealing structure 8 consists of a fire-resistant filler 7 filled into the gap, a first sealing plate 6A that spans the first visible surfaces 10A of the left and right fire-resistant panels 1a and 1b to cover the gap from the first side and is fixed to the left and right first visible surfaces 10A with screws S1, and a second sealing plate 6B that spans the second visible surfaces 10B of the left and right fire-resistant panels 1a and 1b to cover the gap from the second side and is fixed to the left and right first visible surfaces 10B with screws S1. The first sealing plate 6A and the second sealing plate 6B are spaced apart and facing each other in the depth direction of the fire-resistant partition wall, forming the visible surface of the fire-resistant partition wall. The first sealing plate 6A and the second sealing plate 6B are made of steel plate, and the filler material 7 is made of rock wool or bio-soluble fibers used as fire-resistant insulation material. The sealing structure 8, together with the left and right adjacent fire-resistant panels 1a and 1b, forms a panel structure, and this panel structure forms part of the fire-resistant partition wall. In this specification, sealing plates are collectively referred to as "6", the sealing plate located on the first side is referred to as the first sealing plate 6A, and the sealing plate located on the second side is referred to as the second sealing plate 6B.

[0030] As shown in Figures 9 to 13, the facing surface of the sealing structure 8 is formed from the side end surface of the filler material 7. The facing surface of the sealing structure 8 corresponds to the shape of the facing surface of the adjacent fire-resistant panel 1 that abuts against it. The filler material 7 according to this embodiment is a relatively soft material, and when the filler material 7 is filled to seal the gap between the left and right fire-resistant panels 1 that are spaced apart in the width direction, the shape of the filler material 7 is such that it adheres closely to the facing surfaces 14 to 16 of the adjacent fire-resistant panels 1. In the facing surface of the sealing structure 8, the facing surface that abuts against the facing surface 14 of the fire-resistant panel 1 is shaped to adhere closely to the facing surface 14 which has a pair of recesses 140 and grooves 170 (see Figures 12(B), 13(A), and (B)). In the facing surface of the sealing structure 8, the facing surface that abuts the facing surface 15 of the fire-resistant panel 1 has a shape that closely adheres to the facing surface 15, which is equipped with a pair of protrusions 150 and recessed grooves 170 (see Figures 12(A), (B), 13(A), (B), (C)). In the facing surface of the sealing structure 8, the facing surface that abuts the facing surface 16 of the fire-resistant panel 1 is a flat surface (see Figures 3, 9-11, 12(A), (C), 13(A), (C)).

[0031] As shown in Figures 5, 7, and 8, the upper ends of the first and second sealing plates 6A and 6B are in contact with or close to the back surface of the visible piece 20 of the upper fixing member 2, and the lower ends of the first and second sealing plates 6A and 6B are in contact with or close to the back surface of the visible piece 30 of the lower fixing member 3. The upper ends of the first and second sealing plates 6A and 6B may also be fixed to the back surface of the visible piece 20 of the upper fixing member 2, and the lower ends of the first and second sealing plates 6A and 6B may be fixed to the back surface of the visible piece 30 of the lower fixing member 3. The width dimension of the sealing plate 6 is not limited as long as it closes the gap between the left and right fire-resistant panels 1, but by making the width dimension of the sealing plate 6 approximately the same as the width dimension of the fire-resistant panel 1, the design can be improved when viewed from the front of the partition wall. Furthermore, the sealing plate 6 according to this embodiment can also be installed so as to cover the connection portion (fitting portion) of the adjacent fire-resistant panel 1, in which case the joint (gap) formed in the fitting portion can be concealed.

[0032] In the embodiment shown in Figure 9, the sealing plate 6 is made of a flat plate, and the first sealing plate 6A and the second sealing plate 6B are fixed with screws S1 at both ends in the width direction, in contact with the left and right first visible surfaces 10A and left and right second visible surfaces 10B of the left and right fire-resistant panels 1a and 1b. In the embodiment shown in Figure 11, the first sealing plate 6A and the second sealing plate 6B are made of a thick flat plate, and both ends in the width direction are fixed with screws S1 at both ends, in contact with the left and right first visible surfaces 10A and left and right second visible surfaces 10B of the left and right fire-resistant panels 1a and 1b, with the heads of the screws S1 fitting within the thickness of the flat plate. Although Figures 9 and 11 show the sealing plate 6 as a whole being a flat plate, the cross-sectional shape of the parts other than the ends in the width direction is not limited, and for example, the parts other than the ends in the width direction may be convex, bulging or protruding away from the panel visible surfaces.

[0033] In the embodiment shown in Figure 10, the first and second sealing plates 6A and 6B each consist of a surface portion 60 and crushed / bent portions 61 at both ends of the surface portion 60 in the width direction. The crushed / bent portions 61 abut against the left and right first visible surfaces 10A and left and right second visible surfaces 10B of the left and right fire-resistant panels 1a and 1b and are fixed with screws S1. By forming the crushed / bent portions 61 at the left and right ends of the sealing plate 6 in the width direction, the strength and safety of the sealing plate 6 are enhanced. In Figure 10, the surface portion 60 of the sealing plate 6 is flat, but the cross-sectional shape of the surface portion 60 is not limited, and for example, the surface portion 60 may be convex, bulging or protruding away from the panel visible surface.

[0034] [A-6-2] Divided cover plate In this embodiment, the first sealing plate 6A and the second sealing plate 6B are divided into an upper element 6a and a lower element 6b. The height dimensions of the upper element 6a and the lower element 6b are not necessarily the same, and in one embodiment, the height position of the upper end of the lower element 6b is at a height that is out of reach of a person. The filler material 7 that fills the space between the first sealing plate 6A and the second sealing plate 6B is also divided into multiple elements in the height direction. In one embodiment, the division positions of the sealing plate 6 and the division positions of the filler material 7 coincide, but the division positions of the sealing plate 6 and the division positions of the filler material 7 may be different.

[0035] As shown in Figure 25, the upper element 6a consists of a surface portion 60a and crushed / bent portions 61a at both widthwise ends of the surface portion 60a. The upper end of the surface portion 60a is a projection 600a that protrudes upward above the left and right crushed / bent portions 61a, and the lower end of the surface portion 60a is a projection 601a that protrudes downward above the left and right crushed / bent portions 61a. The upper element 6a is fixed with screws S1 by bringing the crushed / bent portions 61a into contact with the left and right first visible surfaces 10A and left and right second visible surfaces 10B of the left and right fire-resistant panels 1a and 1b. As shown in Figures 7, 23, and 27, the projection 600a at the upper end of the upper element 6a is in contact with or close to the back surface of the visible surface 20 of the upper fixing member 2. The upper ends of the left and right crushed / bent portions 61a of the upper element 6a are close to or in contact with the lower ends of the visible surface 20.

[0036] As shown in Figure 25, the lower element 6b consists of a surface portion 60b and crushed / bent portions 61b at both widthwise ends of the surface portion 60b. The upper end of the lower element 6b is horizontal, and the lower end of the surface portion 60b is a projection 600b that protrudes downward from the left and right crushed / bent portions 61b. The lower element 6b is fixed with screws S1 by bringing the crushed / bent portions 61b into contact with the left and right first visible surfaces 10A and left and right second visible surfaces 10B of the left and right fire-resistant panels 1a and 1b. As shown in Figures 8, 24, and 28, the projection 600b at the lower end of the lower element 6b is in contact with or close to the back surface of the visible surface 30 of the lower fixing member 3. The lower ends of the left and right crushed / bent portions 61b of the lower element 6b are close to or in contact with the upper ends of the visible surface 30.

[0037] As shown in Figures 6, 20, 22, and 26, with the cover plate 6 attached, the projection 601a at the lower end of the upper element 6a and the upper end of the lower element 60b overlap and are in contact. The lower end of the crushed bend portion 61a of the upper element 6a and the upper end of the crushed bend portion 61b of the lower element 6b are close together or in contact. In the illustrated configuration, the projection 601a at the lower end of the upper element 6a is located on the inside, and the upper end of the lower element 60b is located on the outside.

[0038] The sealing plate 6 may be divided into three or more elements in the height direction. For example, the sealing plate 6 may be formed from three elements: an upper element, an intermediate element, and a lower element. In this case, the lower end of the upper element and the upper end of the intermediate element overlap and abut against each other, and the lower end of the intermediate element and the upper end of the lower element overlap and abut against each other. In addition, in the multiple elements forming the sealing plate 6, the lower end of the upper element and the upper end of the lower element may abut against each other (without overlapping). Furthermore, in the multiple elements forming the sealing plate 6, a backing plate may be provided spanning from the lower end of the upper element to the upper end of the lower element. In the case where a backing plate is provided, the lower end of the upper element and the upper end of the lower element may abut against each other or be spaced apart.

[0039] [A-7] Contact structure between the sealing structure and the visible surface of the adjacent panel In a panel structure consisting of a sealing structure 8 and left and right fire-resistant panels 1, the surface materials forming the visible surfaces are fixed together with screws S1, and the fire-resistant core material 11 inside the fire-resistant panel 1 and the filler material 7 inside the sealing structure 8 are in contact. The visible surface of the sealing structure 8 is formed from the side end surface of the filler material 7.

[0040] In the embodiment shown in Figure 12(A), the panel structure is formed from fire-resistant panel 1a, fire-resistant panel 1b, and a sealing structure 8. The left-side facing surface of the sealing structure 8 is a flat surface and is in close contact with the facing surface 16 of fire-resistant panel 1a. The right-side facing surface of the sealing structure 8 is an uneven surface and is in close contact with the facing surface 15 of fire-resistant panel 1b.

[0041] In the embodiment shown in Figure 12(B), the panel structure is formed from fire-resistant panel 1a, fire-resistant panel 1b, and a sealing structure 8. The left-side facing surface of the sealing structure 8 is an uneven surface and is in close contact with the facing surface 14 of fire-resistant panel 1a. The right-side facing surface of the sealing structure 8 is an uneven surface and is in close contact with the facing surface 15 of fire-resistant panel 1b.

[0042] In the embodiment shown in Figure 12(C), the panel structure is formed from fire-resistant panel 1a, fire-resistant panel 1b, and a sealing structure 8. The left and right facing surfaces of the sealing structure 8 are flat surfaces and are in close contact with the facing surfaces 16 of fire-resistant panel 1a and fire-resistant panel 1b, respectively.

[0043] The configuration shown in Figure 13 is one in which the panel structure shown in Figure 12 is connected in the width direction, and includes a sealing structure 8 provided to close the gap formed between the facing surfaces of fire-resistant panels 1a and 1c, and a sealing structure 8 provided to close the gap formed between the facing surfaces of fire-resistant panels 1b and 1c. Alternatively, the configuration shown in Figure 13 can be considered as a panel structure formed from fire-resistant panels 1a, 1c, and 1b, a sealing structure 8 that closes the gap formed between the facing surfaces of fire-resistant panels 1a and 1c, and a sealing structure 8 that closes the gap formed between the facing surfaces of fire-resistant panels 1b and 1c. In one configuration, the dimensions of the gap formed between the fire-resistant panels are 90 mm or less. For example, if a gap exceeding 90 mm occurs depending on the site, two gaps of 90 mm or less are formed, and a sealing structure 8 is installed in each gap.

[0044] In the embodiment shown in Figure 13(A), the panel structure is formed from fire-resistant panel 1a, fire-resistant panel 1b, fire-resistant panel 1c, and two sealing structures 8. One of the facing surfaces of each sealing structure 8 is an uneven surface and is in close contact with the facing surface 14 of fire-resistant panel 1a and the facing surface 15 of fire-resistant panel 1b, while the other facing surface is a flat surface and is in close contact with the facing surface 16 of fire-resistant panel 1c.

[0045] In the embodiment shown in Figure 13(B), the panel structure is formed from fire-resistant panel 1a, fire-resistant panel 1b, fire-resistant panel 1c, and two sealing structures 8. The facing surface of each sealing structure 8 is an uneven surface and is in close contact with the facing surface 14 of fire-resistant panel 1a, the facing surface 15 of fire-resistant panel 1b, and the facing surfaces 15 and 14 of fire-resistant panel 1c.

[0046] In the embodiment shown in Figure 13(C), the panel structure is formed from fire-resistant panels 1a, 1b, and 1c, and two sealing structures 8. The left and right facing surfaces of the left sealing structure 8 are flat surfaces and are in close contact with the facing surfaces 16 of fire-resistant panels 1a and 1c, respectively. The left facing surface of the right sealing structure 8 is a flat surface and is in close contact with the facing surface 16 of fire-resistant panel 1c, while the right facing surface is an uneven surface and is in close contact with the facing surface 15 of fire-resistant panel 1b.

[0047] [B] Construction method [B-1] Overview Referring to Figures 14 to 18, a construction method for forming a fire-resistant partition wall, which is formed by fitting multiple fire-resistant panels 1 together in the width direction, will be described. This embodiment mainly relates to a panel construction method when one or more beams G exist in the space in which the fire-resistant partition wall is formed, and / or when one or more openings O exist in the fire-resistant partition wall. The fire-resistant panels 1' located on the beams G and the fire-resistant panels 1' with openings O are partially cut out to satisfy the panel cutout conditions based on the panel strength. In this embodiment, the fire-resistant panels 1' corresponding to the beams G and openings O are positioned first. That is, the positions defined by the beams G and the positions defined by the openings O become the reference positions. Positions defined by the side walls W can also be reference positions. In the construction method according to this embodiment, a first reference position and a second reference position are set spaced apart in the width direction, and first, the first reference panel is installed at the first reference position, and the second reference panel is installed at the second reference position. The space between the first standard panel and the second standard panel is closed with one or more intermediate panels and one or more closing structures 8. The closing structures 8 can adjust for dimensional errors caused by tolerances on the building side, such as beam positions and unevenness of the floor, tolerances in panel manufacturing, and the fit of the panels when installed. In addition, when actually installing the fire-resistant panels, it is necessary to attach the upper fixing members 2 and the lower fixing members 3. In one embodiment, one of the pair of upper fixing members 2 and one of the lower fixing members 3 are attached to the fire-resistant panel to be installed, the fire-resistant panel to be installed is leaned against one of the upper fixing members 2 and lower fixing members 3 (it may be fixed at this stage), and then the other of the pair of upper fixing members 2 and the other of the lower fixing members 3 are attached.

[0048] The first construction method according to this embodiment comprises: a first step of installing a first reference panel (1', the left fire-resistant panel 1d' in the first embodiment) at a first reference position; a second step of installing a second reference panel (1') at a second reference position; a third step of installing one or more intermediate panels (1a, 1b; 1, 1a, 1b, 1) in the space between the first and second reference panels; and a fourth step of installing a sealing structure 8 in the gaps formed by the third step between the ends of the intermediate panels (1a, 1b), or between the end of the first reference panel and the end of the intermediate panel, or between the end of the second reference panel and the end of the intermediate panel. In the fourth step, the sealing structure 8 is installed by filling the gap with a filler material 7 and covering the front and back of the gap with sealing plates 6A, 6B. A more specific procedure is to install one sealing plate 6 first, then fill with the filler material 7, and then install the other sealing plate 6.

[0049] The second construction method according to this embodiment comprises: a first step of installing a first reference panel (1', the left fire-resistant panel 1d' in the first embodiment) at a first reference position and sequentially fitting one or more intermediate panels (1a, 1) onto the first reference panel toward the second reference position; a second step of installing a second reference panel (1') at a second reference position and sequentially fitting one or more intermediate panels (1b, 1) onto the second reference panel toward the first reference position; and a third step of setting a sealing structure 8 in the gap formed between the intermediate panel (1a) installed in the first step and the intermediate panel (1b) installed in the second step. In the third step, the sealing structure 8 is installed by filling the gap with a filler material 7 and covering the front and back of the gap with sealing plates 6A, 6B. A more specific procedure is to install one sealing plate 6 first, then fill with the filler material 7, and then install the other sealing plate 6.

[0050] In principle, multiple identical fire-resistant panels 1 (of the same width and equipped with a front surface 14 and a front surface 15) are prepared, and if necessary, they are cut into narrower panels on-site and installed. In the intermediate panels installed in the third step of the first construction method and the first or second step of the second construction method, if necessary (for example, if no intermediate panels are installed), at least one intermediate panel is a narrower intermediate panel formed by cutting a portion of it. The timing of forming the narrower intermediate panels is not limited. The right end of fire-resistant panel 1a adjacent to the sealing structure 8, and / or the left end of fire-resistant panel 1b may be cut to form a flat surface 16 (see Figures 3, 9-11, 12(A), (C), 13(A), (C)). Alternatively, the ends of fire-resistant panels 1d' and 1d located at the ends on the side wall W side may be cut to form a flat surface 16 (see Figure 3). In addition, the sealing structure 8 may be installed without cutting the intermediate panel during construction (Figures 12(B), 13(B)). For example, if a gap is formed between adjacent intermediate panels when an intermediate panel is installed, the sealing structure 8 can be installed to cover the gap without cutting the intermediate panel.

[0051] [B-2] First aspect [B-2-1] First construction method In the configuration shown in Figure 14, one opening O is formed in the fire-resistant partition wall. In Figure 14, the fire-resistant panel 1d' located at the left end is the first reference panel, and fire-resistant panel 1' is installed (first step). The fire-resistant panel 1' with the opening O is the second reference panel, and the second reference panel is installed (second step). Fire-resistant panel 1a is installed by fitting it to the right side of the first reference panel, fire-resistant panel 1d', and fire-resistant panel 1b is installed by fitting it to the left side of the second reference panel, fire-resistant panel 1' (third step). At this time, a gap α is formed between the end (face) of fire-resistant panel 1a and the end (face) of fire-resistant panel 1b (Figure 14A), and a sealing structure 8 is installed to close this gap α (fourth step). The forms in which such a gap α is generated include cases where both opposing sides of fire-resistant panel 1a and fire-resistant panel 1b are cut to form a face 16 (Figures 12(C), 13(C)), cases where one of the opposing sides of fire-resistant panel 1a and fire-resistant panel 1b is cut to form a face 16 and the other is a face 14 or 15 (Figures 12(A), 13(A)), and cases where one of the opposing sides of fire-resistant panel 1a and fire-resistant panel 1b is a face 14 and the other is a face 15 (Figures 12(B), 13(B)).

[0052] The fire-resistant panel 1d' may be designated as the second reference panel, and the fire-resistant panel 1' as the first reference panel. The timing of the installation of the fire-resistant panel 1d located at the far right is not limited as long as it is installed after the fire-resistant panel 1' with the opening O has been installed.

[0053] [B-2-2] Second construction method In Figure 14, fire-resistant panel 1d' is installed as the first reference panel, and fire-resistant panel 1a is installed by fitting it to the right side of fire-resistant panel 1d' (first step). Fire-resistant panel 1' is installed as the second reference panel, and fire-resistant panel 1b is installed by fitting it to the left side of fire-resistant panel 1' (second step). A sealing structure 8 is installed in the gap between the end (face) of fire-resistant panel 1a and the end (face) of fire-resistant panel 1b (third step).

[0054] The fire-resistant panel 1d' may be designated as the second reference panel, and the fire-resistant panel 1' as the first reference panel. The timing of the installation of the fire-resistant panel 1d located at the far right is not limited as long as it is installed after the fire-resistant panel 1' with the opening O has been installed.

[0055] [B-3] Second aspect [B-3-1] First construction method In the configuration shown in Figure 15, a fire-resistant partition wall is formed in a space equipped with two beams G. In Figure 15, two fire-resistant panels 1' and 1'' are installed corresponding to the beam G located on the left, with the left fire-resistant panel 1' being the first reference panel, and the first step is to install fire-resistant panel 1'. Two fire-resistant panels 1' and 1'' are installed corresponding to the beam G located on the right, with the right fire-resistant panel 1' being the second reference panel, and the second reference panel is to install the second reference panel (second step). Fire-resistant panel 1a is installed adjacent to the right side of fire-resistant panel 1', which is the first reference panel, and fire-resistant panel 1b is installed adjacent to the left side of fire-resistant panel 1', which is the second reference panel (third step). At this time, a gap is formed between the end (face) of fire-resistant panel 1a and the end (face) of fire-resistant panel 1b, and a sealing structure 8 is installed to close this gap (fourth step).

[0056] Fire-resistant panel 1'' is installed by fitting it to the left of fire-resistant panel 1' on the left side, and fire-resistant panel 1d is installed by fitting it to the left of fire-resistant panel 1''. Fire-resistant panel 1'' is installed by fitting it to the right of fire-resistant panel 1' on the right side, and fire-resistant panel 1d is installed by fitting it to the right of fire-resistant panel 1''. The fire-resistant panel 1' on the left side may be designated as the second reference panel, and the fire-resistant panel 1' on the right side may be designated as the first reference panel. The timing of the installation of fire-resistant panel 1'' is not limited. For example, since the positions of the left and right fire-resistant panels 1' and fire-resistant panel 1'' are determined by beam G, each fire-resistant panel 1' may be installed after fire-resistant panel 1'' has been installed. Note that fire-resistant panel 1'' may also be designated as the first reference panel and the second reference panel.

[0057] [B-3-2] Second construction method In Figure 15, the left fire-resistant panel 1' is installed as the first reference panel, and fire-resistant panel 1a is installed by fitting it to the right side of the left fire-resistant panel 1' (first step). The right fire-resistant panel 1' is installed as the second reference panel, and fire-resistant panel 1b is installed by fitting it to the right side of fire-resistant panel 1' (second step). A sealing structure 8 is installed in the gap between the end (face) of fire-resistant panel 1a and the end (face) of fire-resistant panel 1b (third step).

[0058] Fire-resistant panel 1'' is installed by fitting it to the left of fire-resistant panel 1' on the left side, and fire-resistant panel 1d is installed by fitting it to the left of fire-resistant panel 1''. Fire-resistant panel 1'' is installed by fitting it to the right of fire-resistant panel 1' on the right side, and fire-resistant panel 1d is installed by fitting it to the right of fire-resistant panel 1''. The fire-resistant panel 1' on the left side may be designated as the second reference panel, and the fire-resistant panel 1' on the right side may be designated as the first reference panel. The timing of the installation of fire-resistant panels 1'' is not limited. For example, since the positions of the left and right fire-resistant panels 1' and fire-resistant panel 1'' are determined by beam G, each fire-resistant panel 1' may be installed after fire-resistant panel 1'' has been installed. Note that the left and right fire-resistant panels 1'' may be designated as the first reference panel and the second reference panel, respectively.

[0059] [B-4] Third aspect [B-4-1] First construction method In the configuration shown in Figure 16, two openings O are formed spaced apart in the fire-resistant partition wall. In Figure 16, the left fire-resistant panel 1' with the opening O located at the left end is the first reference panel, and the left fire-resistant panel 1' is installed (first step). The right fire-resistant panel 1' with the opening O located on the right is the second reference panel, and the right fire-resistant panel 1' is installed (second step). Fire-resistant panel 1 is installed by fitting it to the right side of the left fire-resistant panel 1', which is the first reference panel, and fire-resistant panel 1a is installed by fitting it to the right side of fire-resistant panel 1 (third step). Fire-resistant panel 1 is installed by fitting it to the left side of the right fire-resistant panel 1', which is the second reference panel, and fire-resistant panel 1b is installed by fitting it to the left side of fire-resistant panel 1 (third step). At this time, a gap is formed between the end (face) of fire-resistant panel 1a and the end (face) of fire-resistant panel 1b, and a sealing structure 8 is installed to close this gap (fourth step).

[0060] Install fire-resistant panel 1 by fitting it to the left of the first reference panel, fire-resistant panel 1' on the left, and install fire-resistant panel 1d by fitting it to the left of fire-resistant panel 1. The timing of installing fire-resistant panel 1 is not limited as long as it is done after fire-resistant panel 1' on the left. Install fire-resistant panel 1 by fitting it to the right of the second reference panel, fire-resistant panel 1' on the right, and install fire-resistant panel 1d by fitting it to the right of fire-resistant panel 1. The timing of installing fire-resistant panel 1 is not limited as long as it is done after fire-resistant panel 1' on the right.

[0061] [B-4-2] Second construction method In Figure 16, the left fire-resistant panel 1' is installed as the first reference panel, and fire-resistant panels 1 and 1a are sequentially fitted onto the left fire-resistant panel 1' toward the second reference position (first step). The right fire-resistant panel 1' is installed as the second reference panel, and fire-resistant panels 1 and 1b are sequentially fitted onto the right fire-resistant panel 1' toward the first reference position (second step). A sealing structure 8 is installed in the gap between the end (face) of fire-resistant panel 1a and the end (face) of fire-resistant panel 1b (third step).

[0062] Install fire-resistant panel 1 by fitting it to the left of the first reference panel, fire-resistant panel 1' on the left, and install fire-resistant panel 1d by fitting it to the left of fire-resistant panel 1. The timing of installing fire-resistant panel 1 is not limited as long as it is done after fire-resistant panel 1' on the left. Install fire-resistant panel 1 by fitting it to the right of the second reference panel, fire-resistant panel 1' on the right, and install fire-resistant panel 1d by fitting it to the right of fire-resistant panel 1. The timing of installing fire-resistant panel 1 is not limited as long as it is done after fire-resistant panel 1' on the right.

[0063] [B-5] Fourth aspect [B-5-1] First construction method In the embodiment shown in Figure 17, a fire-resistant partition wall is formed in a space equipped with two beams G. In Figure 17, two fire-resistant panels 1' and 1'' are installed corresponding to the beam G located on the left, with the left fire-resistant panel 1' being the first reference panel, and the left fire-resistant panel 1' is installed (first step). Two fire-resistant panels 1' and 1'' are installed corresponding to the beam G located on the right, with the right fire-resistant panel 1' being the second reference panel, and the right fire-resistant panel 1' is installed (second step).

[0064] The first standard panel, the left fire-resistant panel 1', is fitted to the right side of the fire-resistant panel 1, and then the fire-resistant panel 1a is fitted to the right side of the fire-resistant panel 1 (third step). The second standard panel, the right fire-resistant panel 1', is fitted to the left side of the fire-resistant panel 1, and then the fire-resistant panel 1b is fitted to the left side of the fire-resistant panel 1 (third step). At this time, a gap is formed between the end (face) of the fire-resistant panel 1a and the end (face) of the fire-resistant panel 1b, and a sealing structure 8 is installed to close this gap (fourth step).

[0065] Install fire-resistant panel 1'' by fitting it to the left of the left fire-resistant panel 1'', which is the first reference panel, and install fire-resistant panel 1d by fitting it to the left of fire-resistant panel 1''. The timing of installing fire-resistant panel 1'' is not limited. Install fire-resistant panel 1'' by fitting it to the right of the right fire-resistant panel 1'', which is the second reference panel, and install fire-resistant panel 1d by fitting it to the right of fire-resistant panel 1''. The timing of installing fire-resistant panel 1'' is not limited. For example, since the positions of the left and right fire-resistant panels 1'' and fire-resistant panel 1'' are determined by beam G, each fire-resistant panel 1'' may be installed after fire-resistant panel 1'' has been installed. Note that the left and right fire-resistant panels 1'' may also be designated as the first reference panel and the second reference panel, respectively.

[0066] [B-5-2] Second construction method In Figure 17, the left fire-resistant panel 1' is installed as the first reference panel, and fire-resistant panel 1 and fire-resistant panel 1a are sequentially fitted into the left fire-resistant panel 1' toward the second reference position (first step). The right fire-resistant panel 1' is installed as the second reference panel, and fire-resistant panel 1 and fire-resistant panel 1b are sequentially fitted into the right fire-resistant panel 1' toward the first reference position (second step). A sealing structure 8 is installed in the gap between the end (face) of fire-resistant panel 1a and the end (face) of fire-resistant panel 1b (third step).

[0067] Install fire-resistant panel 1'' by fitting it to the left of the left fire-resistant panel 1'', which is the first reference panel, and install fire-resistant panel 1d by fitting it to the left of fire-resistant panel 1''. The timing of installing fire-resistant panel 1'' is not limited. Install fire-resistant panel 1'' by fitting it to the right of the right fire-resistant panel 1'', which is the second reference panel, and install fire-resistant panel 1d by fitting it to the right of fire-resistant panel 1''. The timing of installing fire-resistant panel 1'' is not limited. For example, since the positions of the left and right fire-resistant panels 1'' and fire-resistant panel 1'' are determined by beam G, each fire-resistant panel 1'' may be installed after fire-resistant panel 1'' has been installed. Note that the left and right fire-resistant panels 1'' may also be designated as the first reference panel and the second reference panel, respectively.

[0068] [B-6] Fifth aspect [B-6-1] First construction method In the embodiment shown in Figure 18, a fire-resistant partition wall is formed in a space equipped with two beams G, and a large opening O is formed between the left and right beams G, spanning multiple fire-resistant panels. In one embodiment, this opening O is opened and closed by a shutter device. Fixing members (not shown) for fixing panels are provided at the upper end of the opening O. The fire-resistant panels (1, 1a, 1b, 1) located above the opening O are low-profile panels cut in the height direction, and the sealing structure 8 is also low-profile. The fire-resistant panels (1') located on the left and right sides in the width direction of the opening O are cut out in accordance with the beams G and the opening O.

[0069] In Figure 18, two fire-resistant panels 1' and 1'' are installed corresponding to the beam G located on the left side, with the left fire-resistant panel 1' being the first reference panel, and the left fire-resistant panel 1' is installed (first step). Two fire-resistant panels 1' and 1'' are installed corresponding to the beam G located on the right side, with the right fire-resistant panel 1' being the second reference panel, and the right fire-resistant panel 1' is installed (second step).

[0070] The first standard panel, the left fire-resistant panel 1', is fitted to the right side of the fire-resistant panel 1, and then the fire-resistant panel 1a is fitted to the right side of the fire-resistant panel 1 (third step). The second standard panel, the right fire-resistant panel 1', is fitted to the left side of the fire-resistant panel 1, and then the fire-resistant panel 1b is fitted to the left side of the fire-resistant panel 1 (third step). At this time, a gap is formed between the end (face) of the fire-resistant panel 1a and the end (face) of the fire-resistant panel 1b, and a sealing structure 8 is installed to close this gap (fourth step).

[0071] Install fire-resistant panel 1'' by fitting it to the left of the left fire-resistant panel 1'', which is the first reference panel, and install fire-resistant panel 1d by fitting it to the left of fire-resistant panel 1''. The timing of installing fire-resistant panel 1'' is not limited. Install fire-resistant panel 1'' by fitting it to the right of the right fire-resistant panel 1'', which is the second reference panel, and install fire-resistant panel 1d by fitting it to the right of fire-resistant panel 1''. The timing of installing fire-resistant panel 1'' is not limited. Note that the left and right fire-resistant panels 1'' may be designated as the first reference panel and the second reference panel, respectively.

[0072] [B-6-2] Second construction method In Figure 18, the left fire-resistant panel 1' is installed as the first reference panel, and fire-resistant panel 1 and fire-resistant panel 1a are sequentially fitted into the left fire-resistant panel 1' toward the second reference position (first step). The right fire-resistant panel 1' is installed as the second reference panel, and fire-resistant panel 1 and fire-resistant panel 1b are sequentially fitted into the right fire-resistant panel 1' toward the first reference position (second step). A sealing structure 8 is installed in the gap between the end (face) of fire-resistant panel 1a and the end (face) of fire-resistant panel 1b (third step).

[0073] Install fire-resistant panel 1'' by fitting it to the left of the left fire-resistant panel 1'', which is the first reference panel, and install fire-resistant panel 1d by fitting it to the left of fire-resistant panel 1''. The timing of installing fire-resistant panel 1'' is not limited. Install fire-resistant panel 1'' by fitting it to the right of the right fire-resistant panel 1'', which is the second reference panel, and install fire-resistant panel 1d by fitting it to the right of fire-resistant panel 1''. The timing of installing fire-resistant panel 1'' is not limited. Note that the left and right fire-resistant panels 1'' may be designated as the first reference panel and the second reference panel, respectively.

[0074] [C] Panel replacement method [C-1] Overview The fire-resistant partition wall according to this embodiment is typically used to partition the interior space of factories, logistics warehouses, and the like. In factories and logistics warehouses, vehicles such as forklifts travel on the premises, and if the forks of a forklift come into contact with the fire-resistant panel, there is a risk of damaging the surface of the fire-resistant panel or creating through holes. Damaged panels may not exhibit fire-resistant properties and therefore need to be replaced. Here, since each fire-resistant panel 1 that forms the fire-resistant partition wall is fitted in the width direction, conventionally, when replacing a damaged fire-resistant panel 1, the panels 1 to be replaced were removed one by one from the end, and the replacement panel was installed. The panel replacement method according to this embodiment is characterized in that only the damaged fire-resistant panel 1 is replaced. It will be understood by those skilled in the art that when replacing a panel, one of the pair of upper fixing members 2 and one of the pair of lower fixing members 3 corresponding to the panel are removed.

[0075] Referring to Figure 29, the replacement method according to this embodiment involves identifying the panel 1e to be replaced in a partition wall formed by fitting multiple panels together in the width direction, and cutting and removing this panel from the partition wall. For example, by dividing panel 1e into three sections in the width direction along its entire height, panel 1e can be easily removed even if the ends of the panels are fitted together (see Figure 37(B)). By removing the panel 1e to be replaced, an opening β is formed between the first panel 1f and the second panel 1g that form the fire-resistant partition wall. The replacement panel is cut in the height direction to obtain multiple narrow dividing elements 1a' and 1b' (see Figure 37(C)). Note that the multiple narrow dividing elements 1a' and 1b' may be parts of the panel 1e to be replaced. For example, if, when panel 1e is divided into three sections in the width direction along its entire height, only the central dividing element has damage, the left and right dividing elements may be used as dividing elements 1a' and 1b'. One or more dividing elements 1a' and 1b' are provided to partially close the opening β. A sealing structure 8 is installed in the gap γ formed by the provision of the dividing elements, between the ends of dividing elements 1a and 1b, or between the end of the first panel and the end of the dividing element, or between the end of the second panel and the end of the dividing element. The sealing structure 8 is formed by filling the gap with a filler and covering the front and back of the gap with a pair of sealing plates.

[0076] If a fire-resistant panel located at the end of a fire-resistant partition wall is damaged, the end panel becomes the panel to be replaced. By removing the end panel, an opening is formed between the side wall W of the fire-resistant partition wall and the first panel. The replacement panel is cut in the height direction to obtain multiple narrow dividing elements. The portion of the panel to be replaced may also be used as one of the dividing elements. One or more dividing elements are provided to partially close the opening. A sealing structure 8 is installed in the gap between the ends of the dividing elements, or in the gap between the end of the first panel and the end of the dividing element, which is formed by providing the dividing elements.

[0077] If damage occurs across multiple panels constituting a fire-resistant partition wall, then multiple consecutive panels will be replaced. When multiple panels need to be replaced, the multiple panels can be removed by cutting one panel. Although multiple replacement panels are used, if a dividing element is formed from one replacement panel, the other replacement panels can be used as is.

[0078] In a fire-resistant partition wall consisting of multiple panels, if several panels located at intervals are damaged, each panel to be replaced can be divided and removed. Alternatively, for example, if two panels to be replaced are located with one panel in between, one panel to be replaced can be divided, and the intermediate panel removed, allowing the other panel to be replaced to be removed without dividing it.

[0079] [C-2] First aspect Referring to Figure 29, a first aspect of the panel replacement method according to this embodiment will be described. The first panel 1f, the panel to be replaced 1e, and the second panel 1g are fitted together and connected in the width direction. One of the facing surfaces 15 of the panel to be replaced 1e is fitted with the facing surface 14 of the first panel 1f via a jointing material 17, and the other facing surface 14 of the panel to be replaced 1e is fitted with the facing surface 15 of the second panel 1g via a jointing material 17.

[0080] The panel to be replaced, 1e, located between the first panel 1f and the second panel 1g, is cut and removed, and the joint filler material 17 is also removed to form an opening β between the first panel 1f and the second panel 1g (first step). The replacement panel is cut in the height direction to obtain multiple narrow dividing elements 1a' and 1b'. The end face of dividing element 1a' consists of a face 15 with a groove 170 and a flat surface 16, and the end face of dividing element 1b' consists of a face 14 with a groove 170 and a flat surface 16. The timing for obtaining the replacement dividing elements 1a' and 1b' is not limited and may be performed before the first step.

[0081] The front surface 15 of the dividing element 1a' is fitted into the front surface 14 of the first panel 1f, and the front surface 14 of the dividing element 1b' is fitted into the front surface 15 of the second panel 1g (second step). At this time, a jointing plate material 17 is provided so as to span the front surface 14 of the first panel 1f and the front surface 15 of the dividing element 1a', and a jointing plate material 17 is provided so as to span the front surface 15 of the second panel 1g and the front surface 14 of the dividing element 1b'. The dividing elements 1a' and 1b' are provided so as to close a part of the opening β, and a gap γ is formed between the end (front surface 16) of the dividing element 1a' and the end (front surface 16) of the dividing element 1b'. A sealing structure 8 is installed in the gap γ between the ends of the dividing elements 1a' and 1b' that was formed in the second step (third step).

[0082] The sealing structure 8 is formed by filling the gap γ with a filler material 7 and covering the front and back of the gap γ with a pair of sealing plates 6A and 6B. More specifically, the gap γ is filled with a filler material, one end of sealing plate 6A in the width direction is brought into contact with the first visible surface 10A of the dividing element 1a' and fixed with a screw S1, and the other end of sealing plate 6A in the width direction is brought into contact with the first visible surface 10A of the dividing element 1b' and fixed with a screw S1. One end of sealing plate 6B in the width direction is brought into contact with the first visible surface 10B of the dividing element 1a' and fixed with a screw S1, and the other end of sealing plate 6B in the width direction is brought into contact with the first visible surface 10B of the dividing element 1b' and fixed with a screw S1.

[0083] [C-2] Second aspect Referring to Figure 30, a second aspect of the panel replacement method according to this embodiment will be described. The panel to be replaced, 1e, located between the first panel 1f and the second panel 1g, is cut and removed, and the joint board material 17 is also removed to form an opening β between the first panel 1f and the second panel 1g (first step). The replacement panel is cut in the height direction to obtain a plurality of narrow dividing elements 1a', 1b', and 1c'. The timing of obtaining the dividing elements 1a', 1b', and 1c' for replacement is not limited and may be performed before the first step.

[0084] The dividing element 1a' is fitted into the facing surface 14 of the first panel 1f, the dividing element 1b' is provided on the facing surface 15 of the second panel 1g, and the dividing element 1c' is placed between the dividing elements 1a' and 1b' (second step). The dividing elements 1a', 1b', and 1c' are provided so as to close a part of the opening β, a gap γ1 is formed between the end (facing surface 16) of the dividing element 1a' and the end (facing surface 16) of the dividing element 1c', and a gap γ2 is formed between the end (facing surface 16) of the dividing element 1b' and the end (facing surface 16) of the dividing element 1c'.

[0085] In the second step, the first sealing structure 8 is installed in the gap γ1 between the ends of the dividing elements 1a' and 1c', and the second sealing structure 8 is installed in the gap γ2 between the ends of the dividing elements 1c' and 1b' (third step). The specific construction method of the sealing structure 8 can be described by referring to the description of the first embodiment.

[0086] [D] Repair method [D-1] Overview A method for repairing a partition wall formed by fitting multiple panels together in the width direction will be described. The fire-resistant partition wall according to this embodiment is typically used to partition the interior space of factories, logistics warehouses, etc. In factories and logistics warehouses, vehicles such as forklifts travel on the premises, and if the forks of the forklifts come into contact with the fire-resistant panel, there is a risk of damaging the surface of the fire-resistant panel or forming through holes. Damaged panels may not exhibit fire-resistant performance. Here, if the damage to the panels constituting the partition wall is minor or covers a small area, it is possible to address the issue by repairing the panel rather than replacing it. The repair of the panel consists of the steps of filling a filler material 7 into an opening 9 or recess 9'' formed to remove the damaged part 9' on the visible surface (first visible surface 10A to second visible surface 10B) of the panel to be repaired 1h, and providing a cover plate 6 to close the filler material 7 and the opening 9 or recess 9''. The filler material 7 consists of bio-soluble fibers used as a fire-resistant and heat-insulating material, but the specific material of the heat-insulating material is not limited to this. In one embodiment, the sealing plate 6 is a steel plate.

[0087] Figure 31 shows three configurations of the shape of the cover plate 6. In the configuration shown on the left, the cover plate 6A is a rectangular plate that covers the opening 9. In the configuration shown in the center, the cover plate 6A extends over approximately the entire height of the panel to be repaired. In the configuration shown in the center, the cover plate 6A is narrow. In the configuration shown on the right, the cover plate 6A extends over approximately the entire height of the panel to be repaired and also extends over approximately the entire width of the panel to be repaired. If only one side of the visible surface of the panel is damaged, it is not necessarily required to provide cover plates on both sides of the visible surface of the panel.

[0088] [D-2] First aspect As shown in Figures 33 and 34, the first embodiment of the panel repair method comprises the steps of: partially cutting and removing the damaged portion on the first visible surface 10A of the panel 1h to be repaired to form an opening 9 in the panel 1h to be repaired; filling the opening 9 with a filler material 7; and providing a cover plate 6A on the first visible surface 10A so as to cover the filler material 7 and the opening 9. In the embodiment shown in Figures 33 and 34, the cover plate 6 consists of a surface portion 60 and crushed and bent portions 61 at both ends of the surface portion 60 in the width direction, and the crushed and bent portions 61 are in contact with the first visible surface 10A and the second visible surface 10B of the panel 1h to be repaired and are fixed with screws S1.

[0089] In the embodiment shown in Figure 33, an opening 9 is formed only on the first visible surface 10A of the panel, and filler material 7 is partially filled in the thickness direction of the panel. A cover plate 6A is then placed against the first visible surface 10A and fixed with screws S1 so as to cover the opening 9 and the filler material 7. When forming the opening 9, the fire-resistant core material 11 may be removed and the filler material 7 filled in as needed. Alternatively, the filler material 7 may be filled into any gaps or recesses formed in the fire-resistant core material 11 when the panel is damaged. In the embodiment shown, a cover plate 6B is also provided on the second visible surface 10B, but providing the cover plate 6B is optional.

[0090] In the embodiment shown in Figure 34, openings 9 are formed on both the first visible surface 10A and the second visible surface 10B of the panel, and filler material 7 is filled throughout the entire thickness of the panel 1. A cover plate 6A is brought into contact with the first visible surface 10A and fixed with screws S1, and a cover plate 6B is brought into contact with the second visible surface 10B and fixed with screws S1, so as to cover the openings and filler material 7. When forming the openings 9, the fire-resistant core material 11 may be removed and the filler material 7 filled in as needed. In the damaged area of ​​the repaired panel, the openings 9 may be formed by penetrating in the thickness direction (depth direction), thereby cutting out the first visible surface 10A and the second visible surface 10B, and the fire-resistant core material 11 may be removed over the entire thickness. Alternatively, the filler material 7 may be filled into gaps or recesses formed in the fire-resistant core material 11 when the panel is damaged.

[0091] [D-3] Second aspect In the second embodiment, the visible surface of the panel is left intact without being cut off, and the filler material 7 and cover plate 6 are provided. As shown in Figure 32, the second embodiment of the panel repair method consists of a first step of filling the recessed portion 9'' of the first visible surface 10A of the panel 1h to be repaired with filler material 7, and a second step of bringing the cover plate 6A into contact with the first visible surface 10A so as to cover the filler material 7 and the recessed portion 9'', and fixing it with screws S1. In the embodiment shown in Figure 32, a cover plate 6B is provided on the second visible surface 10B of the panel, but providing the cover plate 6B is optional. The method may also include a step of forming a recessed portion 9'' corresponding to a scratch on the visible surface.

[0092] [D-4] Third Action The repair method according to the third embodiment comprises the steps of: partially cutting and removing the portion of the panel to be repaired that includes the damaged area 9' to form an opening 9 in the panel to be repaired (Figure 35); inserting a panel body P with a core material inside into the opening 9 and filling the space between the opening 9 and the panel body P with a filler material 7 (Figure 36); and providing a cover plate 6A so as to cover the filler material 7, the panel body P, and the opening 9 (Figure 36). In one embodiment, the panel body P consists of front and back steel facing plates and a core material between the facing plates. In the illustrated embodiment, the cover plate 6A is a rectangular plate, but it may also be a donut-shaped plate with an opening inside (an opening smaller than the area of ​​the facing plates of the panel body P). [Explanation of symbols]

[0093] 1 Fire-resistant panel 10A First visible surface 10B 2nd index page 10a Panel adjacent to the sealing structure 10b Panel adjacent to the sealing structure 10c Panel adjacent to the sealing structure 10e Replacement Panel 10f Panel adjacent to the panel to be replaced 10g Panel adjacent to the panel to be replaced Panels to be renovated (10h) 10' Reference Panel 11. Fire-resistant core material 14. Face surface (uneven surface) 15. Face surface (uneven surface) 16. Face surface (flat surface) 2 Upper fixing member 3. Lower fixing member 5. Lateral fixing member 6, 6A, 6B Blocking plates 7 Filling material 8. Blocking structure 9 aperture 9´ Damaged area 9'' recessed area S1~S4 Screws α gap β aperture γ gap

Claims

1. In a method for constructing a partition wall formed by fitting multiple panels together in the width direction, The first step is to install the first reference panel at the first reference position, The second step involves installing the second reference panel at the second reference position, The third step involves installing one or more intermediate panels in the space between the first reference panel and the second reference panel. The fourth step involves installing a sealing structure in the gaps formed by the third step between the ends of the intermediate panels, or between the end of the first reference panel and the end of the intermediate panel, or between the end of the second reference panel and the end of the intermediate panel. A method for constructing partition walls, including [specific details omitted].

2. The sealing structure is formed by filling the gap with a filler and covering the front and back of the gap with a pair of sealing plates. A method for constructing a partition wall according to claim 1.

3. The third step includes fitting one or more intermediate panels onto the first reference panel toward the second reference position, and fitting one or more intermediate panels onto the second reference panel toward the first reference position, The fourth step involves installing a sealing structure in the gap between the ends of the intermediate panels. A method for constructing a partition wall according to claim 1.

4. At least one of the intermediate panels installed in the third step is a narrow intermediate panel that has been partially cut off. A method for constructing a partition wall according to claim 1.

5. At least one of the first reference panel and the second reference panel is cut out to correspond to a beam. A method for constructing a partition wall according to any one of claims 1 to 4.

6. An opening is formed in at least one of the first reference panel and the second reference panel. A method for constructing a partition wall according to any one of claims 1 to 4.

7. In a method for constructing a partition wall formed by fitting multiple panels together in the width direction, A first reference position and a second reference position are set, spaced apart in the width direction. A first step involves setting a first reference panel at a first reference position and fitting one or more intermediate panels toward a second reference position onto the first reference panel, A second step involves installing a second reference panel at a second reference position and fitting one or more intermediate panels onto the second reference panel toward the first reference position. A third step involves setting up a sealing structure in the gap formed between the intermediate panel installed in the first step and the intermediate panel installed in the second step, A method for constructing partition walls, including [specific details omitted].

8. The sealing structure is formed by filling the gap with a filler and covering the front and back of the gap with a pair of sealing plates. A method for constructing a partition wall according to claim 7.

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