Joint structure and panel material

Abstract

To provide a joint structure having high strength to force in a horizontal direction, and a panel material achieving the joint structure.SOLUTION: A joint structure 100 includes: a beam 1; a flat plate-like plate member 3 which is supported on the beam 1; a first through hole 4 which is arranged on an end 30 of a plate surface of the plate member 3 and is formed so as to penetrate through the plate surface; an extension member 2 which is fixed to the beam 1 and extends from the beam 1; a filler 6 which is filled into the first through hole 4; and a reinforcement member 7 which reinforces the end 30, wherein the extension member 2 is inserted into the first through hole 4 and is embedded in the filler 6, and the reinforcement member 7 has an end reinforcement part 79 which is arranged between at least the extension member 2 and an end face of the end 30, when being viewed in a normal direction of the plate surface of the plate member 3.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to joint structures and panel materials. [Background technology]

[0002] Patent Document 1 discloses a joint structure. This joint structure includes a beam, a protruding member (stud) fixed to the beam and protruding from the upper surface of the beam, a wooden floorboard supported by the beam and having the stud inserted into a through-hole formed in the vertical direction, and a filler material filled into the through-hole. The through-hole in the wooden floorboard is cylindrical. A steel pipe, the outer diameter of which is approximately the same as the inner diameter of the through-hole, is inserted into the through-hole. The steel pipe is attached to the through-hole before the wooden floorboard is placed on the beam. When the wooden floorboard is placed on the beam, a stud is placed inside the through-hole and the steel pipe. The through-hole and the steel pipe are filled with slab concrete. With this joint structure, horizontal forces are transmitted between the beam and the wooden floorboard via the stud and the slab concrete filled into the through-hole in the wooden floorboard. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-31787 Summary of the Invention [Problem to be solved by the invention]

[0004] In the joint structure described in Patent Document 1, when the through-hole into which the protruding member is inserted is located at the end of a board member such as a wooden floorboard (the outer periphery of the board surface of the board member), if a large force is applied to the joint structure in the horizontal direction (for example, the rotational direction) of the board member, the end (the edge of the board member when viewed from the through-hole) may be damaged or destroyed. Therefore, there is a need for a joint structure that is strong against horizontal forces, and a panel material that can achieve such a joint structure.

[0005] The present disclosure has been made in consideration of the above-described circumstances, and its purpose is to provide a joint structure that is highly strong against horizontal forces and a panel material that realizes the joint structure. [Means for solving the problem]

[0006] In order to achieve the above object, the joining structure according to the present disclosure comprises: Beams and a flat plate member supported by the beam; a first through hole disposed at an end of the plate surface of the plate member and formed to penetrate the plate surface; an extension member fixed to the beam and extending from the beam; A filler filled in the first through hole; a reinforcing member that reinforces the end portion; Equipped with The extension member is inserted into the first through hole, embedded in the filling material, The reinforcing member has an end reinforcing portion disposed at least between the extension member and the end face of the end portion when viewed along the normal direction of the plate surface of the plate member.

[0007] In the joining structure according to the present disclosure, The end reinforcing portion may extend along an outer periphery of the first through hole when viewed along a normal direction to a plate surface of the plate member.

[0008] In the joining structure according to the present disclosure, The reinforcing member is A reinforcing plate portion; a second through hole formed to penetrate the plate surface of the reinforcing plate portion, the reinforcing plate portion is disposed along the plate surface of the plate member, the second through hole is arranged to overlap with the first through hole in a normal direction of the plate surface of the plate member, The extension member may be disposed so as to pass through the second through hole.

[0009] In the joining structure according to the present disclosure, The reinforcing member is disposed between the beam and the plate member, It may be fixed to the plate member.

[0010] In the joining structure according to the present disclosure, The reinforcing plate portion may be disposed only within a range overlapping with the beam in a normal direction of a plate surface of the plate member.

[0011] In the joining structure according to the present disclosure, The reinforcing plate portion may have a region opposite the end portion as viewed from the first through hole that extends over a range that does not overlap with the beam in the normal direction of the plate surface of the plate member.

[0012] In the joining structure according to the present disclosure, The reinforcing member may have a raised portion that extends along the inner circumferential surface of the first through hole and along the axial direction of the first through hole when inserted into the first through hole.

[0013] In the joining structure according to the present disclosure, The rising portion may abut against an inner circumferential surface of the first through hole.

[0014] In the joining structure according to the present disclosure, The rising portion may be cylindrical and extend from the outer periphery of the second through hole.

[0015] In the joining structure according to the present disclosure, The end reinforcing portion may have a height of 9 mm or more in a normal direction to the plate surface of the plate member.

[0016] The joining structure according to the present disclosure includes: Further provided is a cylindrical insertion member, The insert member is The diameter is smaller than the diameter of the first through hole, inserted into the first through hole, With the extension member inserted into the cylinder, The metal may be embedded in the filler.

[0017] The joining structure according to the present disclosure includes: The building may further include a fire-resistant covering surrounding the beam.

[0018] In order to achieve the above object, the panel material according to the present disclosure comprises: A flat plate member; a first through hole disposed at an end of the plate surface of the plate member and formed to penetrate the plate surface; a reinforcing member that reinforces the end portion; Equipped with The reinforcing member has an end reinforcing portion disposed at least between the center of the first through hole and the end face of the end portion when viewed along the normal direction of the plate surface of the plate member.

[0019] In the panel material according to the present disclosure, The end reinforcing portion may extend along an outer periphery of the first through hole when viewed along a normal direction to a plate surface of the plate member.

[0020] In the panel material according to the present disclosure, The reinforcing member is A reinforcing plate portion; a second through hole formed to penetrate the plate surface of the reinforcing plate portion, The reinforcing plate portion is aligned along the plate surface of the plate member, The second through hole may be arranged to overlap the first through hole in a normal direction of a plate surface of the plate member.

[0021] In the panel material according to the present disclosure, The reinforcing member is fixed on the surface of the plate member, a rising portion extending along an inner circumferential surface of the first through hole and along an axial direction of the through hole when inserted into the first through hole; The rising portion may be cylindrical and extend from the outer periphery of the second through hole.

[0022] In the panel material according to the present disclosure, The rising portion may abut against an inner circumferential surface of the first through hole. [Effects of the Invention]

[0023] According to the present disclosure, it is possible to provide a joint structure that is highly strong against horizontal forces and a panel material that realizes the joint structure. [Brief explanation of the drawings]

[0024] [Figure 1] FIG. 2 is a cross-sectional view of the joining structure according to the present embodiment. [Figure 2] FIG. 2 is a top view showing an example of a floor portion of a building including a joint structure according to the present embodiment. [Figure 3] FIG. 3 is a cross-sectional view taken along the line III-III in FIG. 2. [Figure 4] FIG. [Figure 5] FIG. 10 is an explanatory diagram (top view) of a case where a load is applied in an in-plane direction of a plate member. [Figure 6] 10 is an explanatory diagram (cross-sectional view) illustrating a case where a load is applied in an in-plane direction of a plate member. FIG. [Figure 7] 10 is an explanatory diagram (top view) of a plate member when a load is applied in an in-plane direction to the plate member and the plate member is deformed. FIG. [Figure 8] 10 is an explanatory diagram (cross-sectional view) of a plate member when a load is applied in an in-plane direction and the plate member is deformed. FIG. [Figure 9] FIG. 10 is an explanatory diagram of the distribution of shear force applied to the extension member. [Figure 10] FIG. [Figure 11] FIG. 10 is an explanatory diagram of a modified example of the joining structure. [Figure 12] FIG. 10 is a top view showing another example of a floor portion of a building including a joint structure according to this embodiment. [Figure 13] FIG. 10 is a top view showing another example of a floor portion of a building including a joint structure according to this embodiment. [Figure 14] FIG. 10 is a cross-sectional view of another joining structure. [Figure 15] FIG. 10 is a cross-sectional view of another joining structure. [Figure 16] FIG. 10 is a cross-sectional view of another joining structure. [Figure 17] FIG. 10 is a top view of the vicinity of a first through hole in another joining structure. [Figure 18] FIG. 10 is a cross-sectional view of another joining structure. [Figure 19] FIG. 10 is a top view of the vicinity of a first through hole in another joining structure. [Figure 20] FIG. 10 is a cross-sectional view of another joining structure. [Figure 21] FIG. 10 is a top view of the vicinity of a first through hole in another joining structure. [Figure 22] FIG. 10 is a cross-sectional view of another joining structure. DETAILED DESCRIPTION OF THE INVENTION

[0025] A joining structure and a panel material according to an embodiment of the present disclosure will be described with reference to the drawings.

[0026] 1 shows a cross-sectional view of a joint structure 100 according to this embodiment. First, an overview of the joint structure 100 and a panel material 300 that realizes the joint structure 100 will be described.

[0027] The joint structure 100 includes a beam 1, a flat plate member 3 supported by the beam 1, a first through hole 4 disposed at an end 30 of the plate surface of the plate member 3 and formed to penetrate the plate surface, an extension member 2 fixed to the beam 1 and extending from the beam 1, a filler material 6 filled in the first through hole 4, and a reinforcing member 7 reinforcing the end 30. The extension member 2 is inserted into the first through hole 4 and is embedded in the filler material 6. The reinforcing member 7 has an end reinforcing portion 79 disposed at least between the extension member 2 and the end face of the end 30 when viewed along the normal direction to the plate surface of the plate member 3. Note that FIG. 1 is a cross-sectional view of the joint structure 100 when viewed in the in-plane direction of the plate member 3, perpendicular to the end face of the end 30.

[0028] The joint structure 100 may be constructed using panels of material 300 .

[0029] The panel material 300 comprises a flat plate member 3, a first through hole 4 that is arranged at an edge 30 of the plate surface of the plate member 3 and formed to penetrate the plate surface, and a reinforcing member 7 that reinforces the edge 30. When viewed along the normal direction of the plate surface of the plate member 3, the reinforcing member 7 has an edge reinforcing portion 79 that is arranged at least between the center C of the first through hole 4 and the end face of the edge 30.

[0030] The joint structure 100 can achieve high strength against horizontal forces. The panel material 300 can achieve the joint structure 100 with high strength against horizontal forces.

[0031] The joining structure 100 and the panel material 300 according to this embodiment will be described in detail below.

[0032] The joint structure 100 is part of the structure of a building such as a house or a building. An example of a building is a steel-framed building. The building may be composed of a reinforced concrete foundation, a framework made up of framework members such as columns and beams, and a superstructure fixed to the foundation, which has plate-like members (so-called panels; one example is panel material 300) that form walls, floors, etc. The framework members and panels may be standardized in advance. In this case, the framework members and panels can be manufactured in advance in a factory and transported to the construction site, where the building can be assembled.

[0033] As shown in Figure 1, the joint structure 100 comprises a beam 1, a plate member 3, a first through hole 4 penetrating the plate surface of the plate member 3, an extension member 2 extending from the beam 1, a filler material 6 filled in the first through hole 4, and a reinforcing member 7.

[0034] FIG. 2 shows an example of a floor A of a building configured to include the joint structure 100. FIG. 2 is a view (top view) of the floor A viewed from above. FIG. 2 illustrates an example in which the floor A is constructed using six plate members 3 (panel materials 300). FIG. 3 shows a cross-sectional view taken along the line III-III in FIG. 2.

[0035] As shown in FIGS. 1 to 3 , the beam 1 is a skeletal member of a building and is a long member. The beam 1 is arranged horizontally. The beam 1 may be, for example, an H-shaped steel beam, a channel steel beam, a wooden material (wood beam), or a columnar member made of reinforced concrete (RC beam). In this embodiment, as an example, the beam 1 is an H-shaped steel beam having a web 11 and a pair of flanges 12 and 13. FIG. 1 illustrates a case in which the beam 1 is arranged so that the web 11 is arranged vertically and the flanges 12 and 13 are arranged horizontally. In the example of FIG. 1 , the flange 12 is arranged vertically above the flange 13. Hereinafter, the upper, upper, or upper side in the vertical direction will be simply referred to as the upper, upper, or upper side, and the lower, lower, or lower side in the vertical direction will be simply referred to as the lower, lower, or lower side. The beam 1 may be supported, for example, at its end by a column 9, as shown in FIG. 2 . FIG. 2 shows a case in which a beam 1 is disposed so as to span a pair of pillars 9, 9.

[0036] As shown in FIG. 1 , the extension member 2 is a rod-shaped member fixed to the upper surface of the flange 12, i.e., the upper surface of the beam 1, by, for example, screwing, fitting, or welding. The extension member 2 is fixed to the upper surface of the rod-shaped beam 1 so as to extend upward from the upper surface of the beam 1. The extension member 2 is inserted into a first through-hole 4 of the plate member 3, as will be described later. The extension member 2 is also embedded in a filler material 6.

[0037] Examples of the extension member 2 are rod-shaped members and plate-shaped members. For example, the cross section of the extension member 2 intersecting the extension direction of the extension member 2 may be circular, polygonal such as rectangular, or X-shaped. The extension direction of the extension member 2 may be a direction along the vertical direction, and as an example, is parallel to the vertical direction.

[0038] The top of the extension member 2 may be provided with a plate-shaped, for example, disk-shaped or polygonal, such as a hexagonal, head whose plate surface intersects with the extension direction of the extension member 2. When the extension member 2 is rod-shaped, the extension member 2 may be, for example, a steel rod, more specifically, a headless stud or a headed stud.

[0039] In this embodiment, the extension member 2 is exemplified as a headed stud having a rod-shaped portion 20 fixed at its lower end to the upper surface of the flange 12 and extending upward, and a head portion 21 at the upper end of the rod-shaped portion 20, the head portion 21 having a larger diameter in the horizontal direction than the rod-shaped portion 20. Note that the head portion 21 is not essential to the extension member 2. The surface of the rod-shaped portion 20 may be uneven.

[0040] The extension members 2 are arranged on the upper surface of the beam 1, for example, at regular intervals.

[0041] As shown in Figures 1 to 3, the plate member 3 is a flat member (panel) that forms the floor or R-floor of a building. As an example, the plate member 3 is supported while being placed on the plate surface of the flange 12 of the beam 1. In this embodiment, when the plate member 3 is placed on the plate surface of the flange 12 of the beam 1, the normal direction of the plate surface of the plate member 3 is parallel to the vertical direction. In other words, the normal direction of the plate surface is the thickness direction of the plate member 3.

[0042] Figures 1 to 3 illustrate an example in which the plate member 3 is supported only on the upper surface of one end of the flange 12 in a direction intersecting the extension direction of the beam 1 (hereinafter referred to as the width direction of the beam 1), but the flange 12 can support the plate member 3 on the upper surface of one end in the width direction of the beam 1 and a different plate member 3 on the upper surface of the other end.

[0043] Examples of the board member 3 are an aerated concrete panel (ALC panel) or a wooden panel. In this embodiment, the board member 3 is illustrated as being cross-laminated timber (so-called CLT: Cross Laminated Timber). The board member 3 is attached by being placed on the beam 1, for example. The board member 3 is arranged so that the board surface is aligned horizontally. When the board member 3 is a wooden panel, in addition to cross-laminated timber, laminated veneer lumber (LVL: Laminated Veneer Lumber), engineered wood, etc. can also be used.

[0044] As shown in Fig. 1, the plate member 3 has a first through hole 4 formed therein that penetrates its plate surface. The first through hole 4 is formed in a direction perpendicular to the plate surface of the plate member 3. In this embodiment, when the plate member 3 is placed on the beam 1, the axis of the first through hole 4 is aligned with the vertical direction. In other words, the first through hole 4 is formed so that when the plate member 3 is placed on the beam 1, the extension direction of the first through hole 4 is aligned with the vertical direction.

[0045] 1 to 3, the first through hole 4 is disposed at an edge 30 of the plate surface of the plate member 3. The edge 30 refers to the outer periphery of the plate member 3 when viewed from above (when viewed along the normal direction to the plate surface of the plate member 3). The shortest distance between the periphery of the first through hole 4 and the end face of the edge 30 is preferably 20 mm or more.

[0046] As shown in Fig. 2, a plurality of first through holes 4 may be formed at an end 30, which is one side of the plate member 3. The first through holes 4 may be formed at the end 30 of the plate member 3 that is supported by the beam 1. In Fig. 2, the first through holes 4 are arranged in a row at the end 30 of the plate member 3 that forms the outer periphery of the floor portion A. The example in Fig. 2 illustrates a case in which the joint structure 100 is constructed at the end 30 of two adjacent sides of a roughly rectangular plate member 3.

[0047] 1, the first through hole 4 may be straight or may have a partially expanded diameter. As an example, the first through hole 4 may have a circular cross section intersecting the vertical direction, i.e., a circular shape when viewed from above. The first through hole 4 may also have a rectangular cross section.

[0048] 2, the first through holes 4 are preferably provided near corners of the plate member 3 (near the ends of the sides of the plate member 3 in the extending direction of the sides). When a force is applied to the plate member 3 in the rotation direction, a large displacement occurs near the corners, so the effects of the joining structure 100 can be easily obtained.

[0049] The first through holes 4 may be provided near adjacent corners (both ends of a side) of the plate member 3, and further first through holes 4 may be provided between these first through holes 4, 4. The first through holes 4 may be arranged at equal intervals or line-symmetrically (symmetrical with respect to a line perpendicular to the center of the side).

[0050] The distance between the centers of adjacent first through holes 4, 4 arranged on the same end portion 30 is, for example, 100 mm to 400 mm. Note that if the distance between the centers of adjacent first through holes 4, 4 is increased (for example, if it is set to 200 mm or more, or even 250 mm or more), the number of extension members 2 and first through holes 4 can be reduced, thereby realizing reductions in material costs, processing labor, and the work of filling the first through holes 4 with the filler 6.

[0051] The distance between the centers of the first through hole 4 at one corner and the first through hole 4 at the other corner near adjacent corners of the plate member 3 can be calculated as the length (length in the extension direction of the side) of the plate member 3 where the side (side including the two corners) overlaps with the beam 1 in the vertical direction, minus twice the distance (the total distance from the centers of the first through holes 4, 4 at both corners to the end face of the plate member 3) from the length (length in the extension direction of the side) of the side of the plate member 3. For example, in the case of a short side (1800 mm side) of a plate member 3 measuring 1800 × 3600 mm square, the distance between the centers of the first through hole 4 at one corner and the first through hole 4 at the other corner near adjacent corners (both ends of the short side) of this plate member 3 can be, for example, 1500 to 1680 mm.

[0052] The first through holes 4 are formed at positions corresponding to the positions of the extension members 2 on the beam 1 when the plate member 3 is placed on the beam 1. The extension members 2 are inserted into the first through holes 4. That is, the plate member 3 is placed on the beam 1 with the extension members 2 inserted in the first through holes 4.

[0053] It is preferable that the axial direction of the extending member 2 is aligned with the axial direction of the first through hole 4. It is preferable that the axial center of the extending member 2 and the axial center of the first through hole 4 are arranged to overlap, but the respective axial centers may be offset. It is preferable that the length of the extending member 2 is 50% or more of the length of the first through hole 4, i.e., the thickness of the plate member 3. In other words, it is preferable that the length of the extending member 2 in the extension direction of the first through hole 4 is half or more the length of the first through hole 4. It is also preferable that the extending member 2 does not protrude from the first through hole 4.

[0054] The reinforcing member 7 is a member that reinforces the end portion 30 of the plate member 3, and is, for example, a metal fitting. The reinforcing member 7 is disposed at the end portion 30 of the plate member 3 that is supported by the beam 1.

[0055] As an example, the reinforcing member 7 may be a strip-shaped metal piece having a flat reinforcing plate portion 70, a second through hole 74 formed so as to penetrate the plate surface of the reinforcing plate portion 70, and a rising portion 75 rising (extending upward) from the outer periphery of the second through hole 74, i.e., the portion of the reinforcing plate portion 70 that follows the periphery (outline) of the second through hole 74, as shown in Figures 1 and 4. For example, in the case of a strip-shaped metal piece, a steel plate having a thickness of 1.2 mm to 15 mm can be used. Note that Figure 4 is a front view of the reinforcing member 7 (a view looking down perpendicularly to the plate surface of the reinforcing plate portion 70, a top view).

[0056] 1, the reinforcing plate portion 70 may be arranged with its plate surface aligned with the plate surface of the plate member 3. FIG. 1 illustrates an example in which the reinforcing plate portion 70 is arranged along the lower surface of the plate member 3, and is arranged between the flange 12 of the beam 1 and the plate member 3.

[0057] The reinforcing member 7 is used to reinforce the end portion 30 of the plate member 3. When the reinforcing plate portion 70 is disposed along the underside of the plate member 3, as shown in FIG. 1 , and is disposed between the flange 12 of the beam 1 and the plate member 3, the fire resistance of the building may be improved. Specifically, when the reinforcing plate portion 70 of the reinforcing member 7 is disposed between the flange 12 of the beam 1 and the plate member 3, the plate member 3 and the beam 1 are not in direct contact with each other. This may reduce the heat conduction from the beam 1 to the plate member 3 in the event of a fire or other disaster. In other words, when the temperature of the beam 1 rises, the temperature rise of the plate member 3 may be delayed, which may improve the fire resistance of the building. The fire resistance improvement effect is particularly pronounced when the plate member 3 is made of wood, such as CLT.

[0058] The reinforcing plate portion 70 may be disposed only within the range that overlaps with the flange 12 of the beam 1 in the normal direction of the plate surface of the plate member 3. This may make it easier to perform fire-resistant covering of the beam 1 or the plate member 3 using gypsum board or the like, since it may be possible to avoid the formation of a protrusion due to the reinforcing plate portion 70.

[0059] The reinforcing plate portion 70 may extend over a range where the area opposite the end 30 (edge) of the plate member 3 as seen from the first through hole 4 does not overlap with the beam 1 when viewed along the normal direction of the plate surface of the plate member 3, i.e., when viewed from above. For example, the reinforcing plate portion 70 may extend inward in the in-plane direction of the plate member 3 so as to protrude 50 cm or less from the end of the flange 12 of the beam 1. This may increase the degree of reinforcement of the end 30 by the reinforcing member 7.

[0060] As shown in Fig. 4, the reinforcing plate 70 may have one or more through holes 70a formed therein for inserting fasteners or connectors such as screws or nails. The reinforcing plate 70 may be fixed to the plate member 3 using the through holes 70a with screws, nails, or the like. The arrangement of the through holes 70a in the reinforcing plate 70 should be reduced as it approaches the end face of the end 30 of the plate member 3 (see Fig. 1, etc.). This makes it possible to avoid a decrease in strength in the portion of the end 30 closer to the end face.

[0061] As shown in FIG. 1 , when the reinforcing plate portion 70 is arranged along the plate surface of the plate member 3, the second through hole 74 is arranged to overlap with the first through hole 4 in a top view. That is, the second through hole 74 is arranged to overlap with the first through hole 4 in the normal direction to the plate surface of the plate member 3. The diameter (inner diameter) of the second through hole 74 may be equal to or smaller than the diameter of the first through hole 4. An extension member 2 is inserted into the second through hole 74. That is, when the reinforcing plate portion 70 is arranged along the plate surface of the plate member 3, the extension member 2 passes through the second through hole 74 and is inserted into the first through hole 4. Note that multiple second through holes 74 may be formed in one reinforcing plate portion 70. That is, one reinforcing member 7 may reinforce the end portions 30 near multiple first through holes 4. The second through hole 74 may be circular or polygonal in a top view.

[0062] The rising portion 75 is a member that extends along the inner circumferential surface of the first through hole 4 and along the axial direction of the first through hole 4 when inserted into the first through hole 4. The rising portion 75 may extend from the upper surface of the reinforcing plate portion 70. As shown in FIGS. 1 and 4, the rising portion 75 may be, for example, a cylindrical portion 75A that extends upward from the outer periphery of the second through hole 74. The rising portion 75 makes it possible to reinforce the end portion 30 from the inside of the first through hole 4. It also makes it possible to reinforce the filler 6.

[0063] When the rising portion 75 is inserted into the first through hole 4, there may be no gap between the rising portion 75 and the inner circumferential surface of the first through hole 4. In other words, the rising portion 75 may abut against the inner circumferential surface of the first through hole 4. This increases the area of ​​the rising portion 75 that contacts the lower end of the end portion 30, which may enhance the effect of reinforcing the end portion 30.

[0064] The rising portion 75 may be spaced apart from the inner circumferential surface of the first through hole 4 when inserted into the first through hole 4. This makes it easier for the rising portion 75 to be inserted into the first through hole 4. In this case, the space between the inner circumferential surface of the first through hole 4 and the surface of the rising portion 75 facing this inner circumferential surface may be filled with the filler 6.

[0065] The rising portion 75 may have a convex portion extending toward the axis of the second through hole 74. The rising portion 75 may be fixed to the inner peripheral surface of the first through hole 4 with a screw, a nail, or the like.

[0066] The cylindrical portion 75A may be joined by welding a cylindrical member to the reinforcing plate portion 70, or may be formed by performing burring when forming the second through-hole 74 in the reinforcing plate portion 70. For example, a strip-shaped metal member having a thickness of approximately 1.2 mm to 6 mm may be used as the reinforcing member 7, and a rising portion 75 having a height of 9 mm or more may be formed by burring or joining a cylindrical member. If the height (thickness) of the reinforcing member 7 in the normal direction to the plate surface of the plate member 3 (thickness direction of the plate member 3) is 9 mm or more, the effect of reinforcing the end portion 30 may be enhanced. This means that the height (thickness) of the end reinforcing portion 79 in the normal direction to the plate surface of the plate member 3 is 9 mm or more.

[0067] When the rising portion 75 is a cylindrical portion 75A, when the reinforcing plate portion 70 is arranged along the plate surface of the plate member 3, the cylindrical portion 75A is inserted into the first through hole 4. The outer diameter of the cylindrical portion 75A may be equal to or smaller than the inner diameter of the first through hole 4.

[0068] The extension length of the rising portion 75 (the length along the axial direction of the first through hole 4) may be 50% or less of the axial length of the extension member 2. This allows the rising portion 75 to better reinforce the end portion 30 from the inside of the first through hole 4. It also allows the filler 6 to be better reinforced. Note that the extension length of the rising portion 75 is preferably 5% or more of the axial length of the extension member 2.

[0069] 1 , when viewed along the normal direction to the plate surface of the plate member 3, i.e., when viewed from above, the portion of the reinforcing plate portion 70 between the extension member 2 and the end face of the end portion 30 of the plate member 3 functions as an end reinforcing portion 79. The end reinforcing portion 79 reinforces the end portion 30, which becomes an edge opening when viewed with the first through hole 4 as the reference point. The end reinforcing portion 79 may extend along part of the outline of the first through hole 4 when viewed along the normal direction to the plate surface of the plate member 3.

[0070] As shown in FIG. 1, the first through holes 4 are filled with a filler 6.

[0071] Examples of the filler 6 include grout, mortar such as non-shrink mortar (a mixture of cement, water, fine aggregate, and admixtures), concrete (a mixture of cement, water, fine aggregate, coarse aggregate, and admixtures), and epoxy resin. Among these, non-shrink mortar is particularly suitable as the filler 6. This is because non-shrink mortar has little drying shrinkage and is less likely to cause gaps in the filled portion of the through hole 4. If gaps occur in the filled portion of the through hole 4, initial deformation when a load is applied to the joint structure 100 increases. However, this can sometimes be prevented by using non-shrink mortar as the filler 6. Furthermore, since non-shrink mortar uses only fine aggregate as an aggregate, it has better filling properties when filling the first through hole 4 than concrete. Furthermore, since non-shrink mortar is a non-combustible material, it has advantages in terms of fire resistance compared to resin-based fillers.

[0072] The extension member 2 is embedded in the filler material 6. As a result, the plate member 3 is fixed to the beam 1 via the extension member 2 and the filler material 6.

[0073] The reinforcing member 7 supported by the plate member 3 is supported by the beam 1 via the extension member 2 and the filler material 6. By being supported by the beam 1 in this way at the lower end of the end portion 30 of the plate member 3, the reinforcing member 7 supported by the beam 1 bears part of the force acting on the edge of the end portion 30 as seen from the first through hole 4 when a horizontal force, particularly a force directed inward in the in-plane direction of the plate member 3, is applied to the plate member 3, thereby reducing the force acting on the end portion 30. As a result, the joint structure 100 has high strength against horizontal forces.

[0074] The filler 6 is also filled into the second through hole 74 and between the first through hole 4 and the rising portion 75. As a result, the filler 6 located at the lower end portion of the extension member 2 and the end portion 30 near the first through hole 4, particularly the lower end of the end portion 30, are reinforced by the rising portion 75. Therefore, the joining structure 100 has even greater strength against horizontal forces.

[0075] The increased strength of the joint structure 100 against horizontal forces will be described in more detail. For example, as shown in FIGS. 5 and 6 , when a load F (a force perpendicular to the end face of the end portion 30 in FIGS. 5 and 6 ) is applied to the plate member 3 in the in-plane direction of the plate member 3 (which is the same as the horizontal direction in this embodiment), if the load F is excessive, the vicinity of the end portion 30 will deform, for example, as shown in FIGS. 7 and 8 , to absorb the load F (see FIGS. 5 and 6 ). Note that FIGS. 5 and 7 are explanatory diagrams (top views) of the vicinity of the first through hole 4 in the joint structure 100 as viewed from above. FIGS. 6 and 8 are explanatory diagrams (cross-sectional views) showing a cross-sectional portion of the joint structure 100 similar to FIG. 1 . FIG. 6 shows a cross-section taken along arrows VI-VI in FIG. 5 , and FIG. 8 shows a cross-section taken along arrows VIII-VIII in FIG. 7 .

[0076] As shown in FIG. 9, when a load F (see FIGS. 5 and 6) is applied to the plate member 3, a greater shear force is applied to the lower end portion (the side close to the beam 1) of the extension member 2 than to the upper end portion (the side away from the beam 1). Note that FIG. 9 also illustrates the shear force distribution applied to the extension member 2. When the load F is applied to the plate member 3, as in the case of the extension member 2, a greater shear force is applied to the portion around the first through hole 4 of the plate member 3 and the lower end portion of the filler material 6 than to the upper end portion. As a result, as shown in FIG. 8, for example, the portion around the first through hole 4, the filler material 6, and the lower end portion of the extension member 2 deform more than the upper end portion, and withstand the load F (see FIGS. 5, 6, and 9). At this time, the reinforcing member 7 reinforces the lower end of the edge portion of the end portion 30, so the lower end of the end portion 30 is prevented from being destroyed. In other words, the joint structure 100 has high strength against horizontal forces.

[0077] In the above explanation, it is assumed that the load F (see Figures 5, 6, and 9) is an excessive force, but in the joint structure 100, it is preferable to reinforce the lower end of the edge portion of the end portion 30 with the reinforcing member 7 so that deformation of the end portion 30 of the plate member 3 is negligible against the assumed load F, and this is possible with the reinforcing member 7 exemplified in this embodiment. By reinforcing the lower end of the edge portion of the end portion 30 with the reinforcing member 7 so that deformation of the end portion 30 is negligible against the assumed load F in the joint structure 100, it is also possible to design the floor portion A (see Figure 2) including the joint structure 100 assuming a rigid floor.

[0078] If the board members 3 are made of a material such as CLT or other wooden material that does not have a high strength joint connecting the beams and board members, it is usually not possible to assume that the floor A using these is a rigid floor. However, even if the board members 3 are made of a material such as CLT that does not have a high strength joint connecting the beams and board members, by reinforcing them with reinforcing members 7, if floor A can be reinforced to the extent that it can be assumed to be a rigid floor, it will be easier to design floor A and the building that includes it.

[0079] As described above, the joint structure 100 may be constructed using panel materials 300, as shown in Figures 1 to 3. The panel materials 300 may be pre-assembled in a factory or the like. Then, the joint structure 100 and floor portion A may be constructed using the panel materials 300 at the building construction site.

[0080] 1, in the panel material 300, the end reinforcing portion 79 of the reinforcing member 7 is disposed between the center C of the first through hole 4 and the end face of the end portion 30 in a top view. As a result, when a joining structure 100 is constructed using the panel material 300, the end reinforcing portion 79 is disposed between the extension member 2 and the end face of the end portion 30 in a top view.

[0081] Below, a modification of the embodiment described above will be described.

[0082] (Variation 1) In the above embodiment, the case where the extension member 2 is inserted into the first through hole 4 and the filler material 6 is filled into the first through hole 4 has been described. However, other members that reinforce the extension member 2 and the filler material 6 may also be inserted into the first through hole 4.

[0083] 10 and 11 show an insertion member 5 as an example of another member that can be inserted into the first through hole 4 to reinforce the extension member 2 or the filler material 6 (see FIG. 11 for the above). The insertion member 5 is a reinforcing tool having an insertion body 50 shaped to conform to a cylindrical shape. The insertion member 5 may be formed from an iron alloy (rebar) such as steel, resin, glass fiber, or the like. FIG. 10 shows a perspective view of the insertion member 5. FIG. 11 shows a cross-sectional view (explanatory diagram) of the joining structure, illustrating the state in which the insertion member 5 is inserted into the first through hole 4.

[0084] The tubular shape of the insertion body 50 may be a cylindrical shape. The insertion body 50 may also have a rectangular tubular shape. An example of the shape of the insertion body 50 is a spiral shape.

[0085] The diameter of the insertion body portion 50 of the insertion member 5 is smaller than the diameter (inner diameter) of the first through hole 4. The insertion member 5 is inserted into the first through hole 4, and may be embedded in the filler with the extension member 2 inserted inside the tube (inside the spiral shape) of the insertion member 5.

[0086] The insertion body portion 50 of the insertion member 5 may be inserted into the cylindrical portion 75A serving as the rising portion 75 while being inserted into the first through-hole 4. This may further enhance the effect of reinforcing the extension member 2 and the filler 6.

[0087] (Variation 2) In the above embodiment, the case where the joint structures 100 are constructed at the end portions 30 of two adjacent sides of a roughly rectangular plate member 3 has been described as an example in Fig. 2. However, the arrangement of the joint structures 100 may be changed as appropriate depending on the shape of the building and the floor portion A. For example, as shown in Fig. 12, the joint structures 100 may be constructed at the end portions 30 of three sides of a roughly rectangular plate member 3.

[0088] (Variation 3) In the above embodiment, the case where the joint structure 100 is constructed at the end portions 30 of two adjacent sides of a roughly rectangular plate member 3 has been described as an example in Fig. 2. However, the arrangement of the joint structure 100 may be changed as appropriate depending on the shape of the building and the floor portion A. For example, as shown in Fig. 13, the joint structure 100 may be constructed at the end portions 30 of two opposite sides of a roughly rectangular plate member 3.

[0089] In this way, it is possible to provide a joint structure that is strong against horizontal forces and a panel material that realizes this joint structure.

[0090] [Another embodiment] (1) In the above embodiment, as shown in FIGS. 1 and 4 , the reinforcing member 7 in the joint structure 100 includes a flat reinforcing plate portion 70, a second through hole 74 formed to penetrate the plate surface of the reinforcing plate portion 70, and a rising portion 75 rising (extending upward) from the outer periphery of the second through hole 74. However, the rising portion 75 is not essential. For example, as shown in FIG. 14 , the reinforcing member 7 in the joint structure 100 does not need to include the rising portion 75 (see FIG. 1 , etc.). The presence or absence of the rising portion 75 can be determined based on the material, thickness, outer diameter, etc. of the reinforcing member 7. For example, if a strip-shaped metal piece having a thickness of 9 mm or more is used as the reinforcing member 7 (end reinforcing portion 79), the reinforcing member 7 can sufficiently reinforce the lower end of the edge opening portion of the end portion 30 without a separate rising portion, so the rising portion 75 is not necessary. Even if the reinforcing member 7 does not include the rising portion 75, the reinforcing effect increases as the reinforcing member 7 becomes thicker. However, in consideration of cost and workability, the thickness of the reinforcing member 7 is sufficient if it is 9 mm or more and 15 mm or less, and preferably 9 mm or more and 12 mm or less.

[0091] (2) In the above embodiment, as shown in FIG. 1, the reinforcing plate portion 70 is disposed along the underside of the plate member 3 in the joint structure 100, and the reinforcing plate portion 70 is disposed between the flange 12 of the beam 1 and the plate member 3. In this case, as shown in FIG. 15, a recess 37 may be formed in the underside of the end portion 30 of the plate member 3, and the reinforcing plate portion 70 may be disposed by fitting into the recess 37. The example in FIG. 15 illustrates a case in which the underside of the reinforcing plate portion 70 in the joint structure 100 is flush with the underside of the other plate member 3. This may increase the ceiling height of the room below the plate member 3. Note that FIG. 15 illustrates a case in which the reinforcing member 7 does not have a rising portion 75 (see FIG. 1, etc.).

[0092] (3) In the above embodiment, as shown in FIG. 1 and other figures, the reinforcing member 7 in the joining structure 100 includes a flat reinforcing plate portion 70 and a second through hole 74 formed through the plate surface of the reinforcing plate portion 70, and the portion of the reinforcing plate portion 70 between the extending member 2 and the end face of the end portion 30 of the plate member 3 functions as the end reinforcing portion 79. However, even when the reinforcing member 7 includes the reinforcing plate portion 70, it is not essential that the second through hole 74 be formed. In the joining structure 100, as shown in FIGS. 16 and 17, it is sufficient that the reinforcing member 7 has at least a portion that can serve as the end reinforcing portion 79, which is disposed between the extending member 2 and the end face of the end portion 30 in a top view. The examples shown in FIGS. 16 and 17 illustrate a case in which the reinforcing member 7 includes a flat reinforcing plate portion 70 and a notch portion 74A formed at the end of the reinforcing plate portion 70 instead of the second through hole 74 (see FIG. 1 and other figures). The cutout portion 74A is formed in the end portion of the reinforcing plate portion 70 located on the opposite side to the end face of the end portion 30. The cutout portion 74A is arranged so as to overlap with the first through hole 4 in a top view. At least a portion of the reinforcing plate portion 70 is arranged between the extension member 2 and the end face of the end portion 30 of the plate member 3 in a top view, and functions as an end reinforcing portion 79.

[0093] (4) In the above embodiment, as shown in FIG. 1 , the reinforcing plate portion 70 of the reinforcing member 7 in the joint structure 100 may be arranged with its plate surface aligned with the plate surface of the plate member 3, and as an example, a case has been described in which the reinforcing plate portion 70 is arranged along the underside of the plate member 3. However, in the joint structure 100, instead of arranging the reinforcing member 7 along the underside of the plate member 3, as shown in FIGS. 18 and 19 , the reinforcing member 7 may be arranged embedded in the end portion 30 of the plate member 3. FIGS. 18 and 19 show a case in which the reinforcing plate portion 70 is embedded in the end portion 30 of the plate member 3 with its plate surface aligned with the plate surface of the plate member 3.

[0094] In this case, the reinforcing plate portion 70 should be disposed within the range in which the extending member 2 extends in the extending direction of the extending member 2. Preferably, the reinforcing plate portion 70 should be disposed within the range in which the extending member 2 extends, in a range closer to the beam 1 (lower end side) than the center position of the extending member 2. This allows the end portion 30 to be reinforced more effectively.

[0095] (5) In the above embodiment, as shown in FIG. 1 and other figures, it has been described that the reinforcing member 7 in the joining structure 100 has a flat reinforcing plate portion 70 and a second through hole 74 formed so as to penetrate the plate surface of the reinforcing plate portion 70, and that the portion of the reinforcing plate portion 70 between the extension member 2 and the end surface of the end portion 30 of the plate member 3 functions as an end reinforcing portion 79. However, the reinforcing member 7 in the joining structure 100 is not limited to having a flat reinforcing plate portion 70, and may be, for example, as shown in FIGS. 20 and 21 , a member that is U-shaped in top view, such as a metal fitting 7A formed by bending a metal rod that has a circular cross section intersecting the extension direction into a U-shape.

[0096] The bottom (curved portion) of the U-shape of the metal fitting 7A is positioned between the extension member 2 and the end face of the end portion 30 of the plate member 3 in a top view, forming an end reinforcing portion 79. In the example shown in FIGS. 20 and 21 , the end reinforcing portion 79 is located within the first through hole 4 and is embedded in the filler material 6. The metal fitting 7A may be positioned between the plate member 3 and the beam 1, but in the example shown in FIGS. 20 and 21 , it is positioned inside the plate member 3. For example, a groove 38 recessed in the in-plane direction from the end face of the end portion 30 may be formed in the plate member 3, and the metal fitting 7A may be accommodated in this groove 38. In this case, the groove 38 may be connected to the first through hole 4. The groove 38 may also be filled with the filler material 6, and the metal fitting 7A may be embedded in the filler material 6 and fixed to the groove 38. When filling the groove 38 with the filler material 6, it is preferable to close the opening of the groove 38 with a plug 39. Furthermore, the metal fitting 7A may be embedded in the plate member 3 without providing the groove 38.

[0097] The end reinforcing portion 79 of the metal fitting 7A is not limited to a smooth curved shape like the bottom part of a U-shape, but may be a polygonal shape including an angular U-shape (the katakana letter U-shape).

[0098] (6) The fire resistance of the joint structure 100 described in the above embodiment can be improved by adding a fire-resistant coating. For example, as shown in Fig. 22, the fire resistance can be improved by covering or surrounding the underside of the plate member 3 or the side and underside of the beam 1 with a fire-resistant fire-resistant coating material 8 such as gypsum board, calcium silicate board, or a coating layer formed by spraying mortar or rock wool.

[0099] The configurations disclosed in the above embodiments (including other embodiments, the same applies below) can be applied in combination with configurations disclosed in other embodiments, as long as no contradictions arise. Furthermore, the embodiments disclosed in this specification are examples, and the embodiments of the present disclosure are not limited to these and can be modified as appropriate within the scope of the purpose of the present disclosure. [Industrial Applicability]

[0100] The present disclosure is applicable to joint structures and panel materials. [Explanation of symbols]

[0101] 1:Beam 10: Edge 100:Joint structure 11: Web 12: Flange 13: Flange 2: Extension member 20: Rod-shaped part 21:Head 3: Plate member 30: Edge 300: Panel material 37: Recess 38: Groove 39: Plug 4:First through hole 5: Insertion member 50: Insertion body 6: Filling material 7: Reinforcement member 70: Reinforcement plate 74:Second through hole 74A: Notch 75: Rising part 75A: Cylindrical part 79: End reinforcement part 7A: Metal fitting 8: Fireproof coating material<00​​​​​​​

Claims

1. Beams and a flat plate member supported by the beam; a first through hole disposed at an end of the plate surface of the plate member and formed to penetrate the plate surface; an extension member fixed to the beam and extending from the beam; A filler filled in the first through hole; a reinforcing member that reinforces the end portion; Equipped with The extension member is inserted into the first through hole, embedded in the filling material, The reinforcing member is a joining structure having an end reinforcing portion arranged at least between the extension member and the end face of the end portion when viewed along the normal direction of the plate surface of the plate member.

2. The joining structure according to claim 1 , wherein the end reinforcing portion extends along the contour of the first through hole when viewed along a normal direction of the plate surface of the plate member.

3. The reinforcing member is A reinforcing plate portion; a second through hole formed to penetrate the plate surface of the reinforcing plate portion, the reinforcing plate portion is disposed along the plate surface of the plate member, the second through hole is arranged to overlap with the first through hole in a normal direction of the plate surface of the plate member, The joining structure according to claim 2 , wherein the extension member is disposed so as to pass through the second through hole.

4. The reinforcing member is disposed between the beam and the plate member, The joining structure according to claim 3, wherein the joining structure is fixed to the plate member.

5. The joining structure according to claim 4 , wherein the reinforcing plate portion is disposed only within a range that overlaps with the beam in a normal direction of the plate surface of the plate member.

6. A joining structure as described in claim 4, wherein the reinforcing plate portion extends over a range opposite the end portion as viewed from the first through hole so as not to overlap with the beam in the normal direction of the plate surface of the plate member.

7. A joining structure described in any one of claims 3 to 6, wherein the reinforcing member has a raised portion that extends along the inner surface of the first through hole when inserted into the first through hole and along the axial direction of the first through hole.

8. The joining structure according to claim 7 , wherein the rising portion abuts against an inner circumferential surface of the first through hole.

9. The joining structure according to claim 7 , wherein the rising portion has a cylindrical shape extending from an outer periphery of the second through hole.

10. The joining structure according to claim 2 , wherein the end reinforcing portion has a height of 9 mm or more in a direction normal to the plate surface of the plate member.

11. Further provided is a cylindrical insertion member, The insert member is The diameter is smaller than the diameter of the first through hole, inserted into the first through hole, With the extension member inserted into the cylinder, The joint structure according to claim 1 , wherein the joint is embedded in the filler material.

12. The joint structure according to claim 4 , further comprising a fire-resistant covering material surrounding the beam.

13. A flat plate member; a first through hole disposed at an end of the plate surface of the plate member and formed to penetrate the plate surface; a reinforcing member that reinforces the end portion; Equipped with The reinforcing member is a panel material having an end reinforcing portion arranged at least between the center of the first through hole and the end face of the end when viewed along the normal direction of the plate surface of the plate member.

14. The panel material according to claim 13 , wherein the end reinforcing portion extends along an outer periphery of the first through hole when viewed in a normal direction to the plate surface of the plate member.

15. The reinforcing member is A reinforcing plate portion; a second through hole formed to penetrate the plate surface of the reinforcing plate portion, The reinforcing plate portion is aligned along the plate surface of the plate member, The panel material according to claim 14 , wherein the second through holes are arranged so as to overlap with the first through holes in a direction normal to the plate surface of the plate member.

16. The reinforcing member is fixed on the surface of the plate member, a rising portion extending along an inner circumferential surface of the first through hole and along an axial direction of the through hole when inserted into the first through hole; The panel material according to claim 15, wherein the rising portion has a cylindrical shape extending from an outer periphery of the second through hole.

17. The panel material according to claim 16 , wherein the rising portion abuts against an inner peripheral surface of the first through hole.

Images