JP3175563U - Strengthening material for load bearing materials - Google Patents

Abstract

[PROBLEMS] To prevent a punching shear, in which a nail head of a nail for fixing a load bearing face material to a structural material, penetrates the load bearing face material in a load bearing wall made of a load bearing face material of a wooden framed housing. Provided is a reinforcing material that makes it easy to accurately drive a predetermined number of nails to be fixed into a predetermined position and that can be easily aligned with a load bearing surface, and that increases the wall strength magnification of the load bearing wall.
A reinforcing member has a length shorter than a length of a short side of the load bearing member, a width in a range of 6 to 17 times a diameter of a body portion of the nail, and a thickness. It consists of a strip-shaped thin metal plate of 0.5 mm or less. Further, a nail driving position for giving a predetermined wall strength magnification is displayed on the surface of the reinforcing material, and preferably, a protruding portion for temporarily fixing the reinforcing material to the load bearing surface material is the reinforcing material. The projecting portions for temporarily fixing the reinforcing material to the load bearing surface are hole flanges.
[Selection] Figure 5

Description

  The present invention relates to a technique for increasing the wall strength magnification of a load-bearing wall in a load-bearing wall made of a load-bearing surface material of a wooden framed house.

  For example, when structural plywood is used as a load bearing surface material used for a load bearing wall, a material with dimensions of 3 width x 9 length x 9 mm thickness is nailed to a wooden frame according to a construction example of the Building Standards Act. When it is fixed in place, a load-bearing wall with a wall strength magnification (wall strength according to the criteria of Article 46 of the Building Standards Law Enforcement Ordinance) of 2.5 times is obtained.

  By the way, as a method of increasing the wall strength magnification of only some bearing walls, for example, a predetermined bracing is added to increase the wall strength magnification to 3.5 times, or a bracing is added to the wall to increase the wall strength. A method of increasing the wall strength magnification by changing the height magnification to 4.5 times or changing the thickness of the load bearing face material has been performed.

  However, the method of adding braces and the method of changing the thickness of the load-bearing facet have the problem that the workability is impaired, such as increasing the labor of adding braces and causing unevenness in the wall base.

  As a method of increasing the wall strength magnification by a method other than the method of adding braces or changing the thickness of the bearing surface, the method of increasing the number of nails to be fixed to the bearing surface, Attempts have been made to make it thicker. However, in the method of increasing the number of nails to be driven, the number of nails to be driven is increased, which increases labor and impairs workability.

  On the other hand, the method of thickening the nail has a high risk of causing cracks in the load bearing surface material and structural material, resulting in poor construction. Further, in measuring the shear strength of nail joints, the nail head penetrates the load bearing surface material. Due to the occurrence of punching shear, it was difficult to increase the wall strength magnification.

  In particular, it is preferably used as a load-bearing surface material that is easy to discharge moisture inside the house to the outside of the house and has good air permeability, such as softwood plywood, medium specific gravity fiber board (MDF), volcanic glassy multilayer board, pulp・ Punching shear is particularly likely to occur when using a load bearing surface material with a specific gravity as low as 0.6 to 1.0, such as a siliceous cement board, and by making the nails thicker It has been difficult to increase the wall strength magnification of the bearing walls.

JP 2010-7454 A JP 2006-28805 A Japanese Patent Laid-Open No. 2003-3676 Japanese Patent Laid-Open No. 2003-3592

  The present invention is a load bearing wall made of a load bearing surface of a wooden framed housing, and prevents a punching shear in which a nail head of a nail that fixes the load bearing surface to a structural material penetrates the load bearing surface. It is easy to accurately drive a nail for fixing a predetermined number of nails into a predetermined position, and further, it is possible to provide a reinforcing material that increases the wall strength magnification of the load bearing wall, which is easy to align with the load bearing surface material. It is aimed.

  The present invention aims to solve the above-mentioned problems, and the reinforcing material of the present invention is a nail nail for fixing a load bearing surface material to a structural material in a load bearing wall made of a load bearing surface material of a wooden framed house. A reinforcing material sandwiched between the head and the load bearing face material, wherein the reinforcement material has a length shorter than the length of the short side of the load bearing face material and a width of 6 mm which is the diameter of the trunk of the nail. It is made of a strip-shaped thin metal plate having a length in the range of double to 17 times and a thickness of 0.5 mm or less, and the surface of the reinforcing material is nail-plated for giving a predetermined wall strength magnification. The position is displayed.

  Here, the reinforcing material is sandwiched between the nail head of the nail that fixes the load bearing face material to the structural material and the load bearing face material. It can be a bearing wall with a height magnification. Furthermore, the length of the reinforcing material is shorter than the length of the short side of the load bearing surface material, the width of the reinforcing material is 6 to 17 times the diameter of the trunk of the nail, and the thickness of the reinforcing material is Since it is made of a strip-shaped thin steel plate having a thickness of 0.5 mm or less, the shape of the reinforcing material is so compact and light that the operator can hold it with one hand and workability is good. Furthermore, the material cost can be reduced because the shape of the reinforcing material is limited to the width and thickness that retain the strength required to prevent the punching shear phenomenon. Furthermore, since the nail driving position for obtaining a predetermined wall magnification is displayed on the surface of the reinforcing material, a predetermined number of nails can be constructed at an accurate nail driving interval. Therefore, it is possible to prevent the occurrence of poor construction such as uneven nail driving intervals and a small number of nails.

  Here, in the above configuration, it is preferable that protrusions for temporarily fixing the reinforcing member to the load bearing member are formed at two or more places including both ends of the reinforcing member.

  With the above configuration, the reinforcing member can be temporarily fixed to the load bearing surface material by inserting the protruding portion into the load bearing surface material before fixing the load bearing surface material to the structural material. Therefore, before fixing the load bearing member to the structural member, the reinforcing member can be accurately temporarily fixed to a predetermined position of the load bearing member. Furthermore, when the load bearing face material is fixed to the structural material, it is necessary to stand the load bearing face material perpendicular to the ground. According to the above configuration, the reinforcing material temporarily fixed to the load bearing face material is the load bearing surface. Since the material does not fall off, the reinforcing material and the load bearing member can be fixed to the structural member with a nail without manually pressing the reinforcing member against the load bearing member.

  Here, in the above configuration, it is preferable that the protruding portion for temporarily fixing the reinforcing material to the load bearing surface material is a hole flange. Here, the shape of the hole flange may be any shape as long as it can be easily fitted into the load bearing surface and the reinforcing material can be temporarily fixed to the load bearing surface. For example, the shape of the hole flange may be any shape other than a circle, such as an ellipse, square, or triangle. If the hole flange is erected perpendicular to the surface of the reinforcing material, the hole flange The tip may be any shape including a shape with a cracked edge and a jagged edge. The hole flange can be easily processed in the process of manufacturing the reinforcing material by using a press.

  With the above-described configuration, the flange of the hole flange can be easily fitted into the load-bearing face material, and the reinforcing material is less likely to drop off from the load-bearing face material.

  Here, in the above configuration, it is preferable that the protruding portion is formed so as to overlap with the nail driving position.

  With the above configuration, the nailing position display and the processing of the protruding portion can be performed at the same time, so the processing steps of the reinforcing material can be reduced. Furthermore, it is possible to prevent the protruding portion from being confused with the display of the nail driving position.

  According to the reinforcing material of the present invention, the shape of the reinforcing material is a compact and light strip-shaped thin steel plate, so that the operator can work with one hand and the workability is good. Further, since the reinforcing material is not disposed in the place of the load bearing surface material where the nail is not driven, the material for the reinforcing material can be reduced and the material cost can be reduced.

  In order to achieve a higher wall strength magnification, it is specified to use a nail that is thicker than the nail used in normal construction, but if the reinforcing material of the present invention is used, a thick nail will be accurately nailed. Since the load bearing surface can be fixed to the structural material via the reinforcing material while maintaining the spacing, it prevents the occurrence of construction failures such as uneven nail spacing, insufficient number of nails driven, or removal of nails from the structural material. Thus, it is possible to stably construct a high wall strength magnification.

  In addition, the reinforcing member can be temporarily fixed to the load bearing surface by inserting the protrusion into the load bearing surface before fixing the load bearing surface to the structural material. Before fixing, the reinforcing material can be temporarily fixed accurately in accordance with a predetermined position of the load bearing surface material. Furthermore, when the load bearing face material is fixed to the structural material, it is necessary to stand the load bearing face material perpendicular to the ground. However, if the reinforcing material of the present invention is used, the load bearing face material is temporarily fixed to the load bearing face material. Since the reinforcing material does not fall off from the load bearing member, the reinforcing member and the bearing member can be fixed to the structural member with a nail without manually pressing the reinforcing member against the bearing member.

Explanatory drawing which measures the shear strength of a nail joint in the state which pinched | interposed the reinforcing material between the nail head of the nail which fixes a load bearing surface material to a structural material, and a load bearing surface material. The figure explaining the frame of a wooden frame house. The figure explaining the state which constructed the load bearing surface material to the wooden frame of FIG. The schematic diagram of the reinforcing material of this invention. The figure which shows the load-bearing wall which raised the wall strength magnification using the reinforcing material of the present invention It is 1st Example of the nailing position of the reinforcement material of this invention, Comprising: (a) is sectional drawing in AA of FIG. (B) is a top view in AA of FIG. It is 2nd Example of the nailing position of the reinforcing material of this invention, Comprising: (a) is sectional drawing in AA of FIG. (B) is a top view in AA of FIG. It is 1st Example of the protrusion part of the reinforcing material of this invention, Comprising: (a) is sectional drawing in BB of FIG. (B) is a top view in BB of FIG. It is 2nd Example of the protrusion part of the reinforcing material of this invention, Comprising: (a) is sectional drawing in BB of FIG. (B) is a top view in BB of FIG. (C) is side sectional drawing in the BB center part of FIG. It is 3rd Example of the protrusion part of the reinforcing material of this invention, Comprising: (a) is sectional drawing in BB of FIG. (B) is a top view in BB of FIG.

  The best mode for carrying out the present invention will be specifically described below with reference to the drawings. However, the present invention is not limited to the above-described embodiments.

  The present invention is a device of a reinforcing material sandwiched between a nail head of a nail and a load bearing surface material that fixes the load bearing surface material to a structural material in a load bearing wall made of a load bearing surface material of a wooden framed house.

  FIG. 4 is a perspective view for explaining the reinforcing member of the present invention. The reinforcing material 4 of the present invention is made of a thin metal plate having a strip shape, and the reinforcing material 4 may be any kind of metal as long as it is a metal. A metal plate having excellent corrosion resistance, such as a plated steel plate, is preferred because the durability of the reinforcing material is improved.

  As the thickness 33 of the reinforcing material is larger, as shown in the explanatory diagram for measuring the shear strength of the nail joint in FIG. The risk of damaging is reduced, high shear strength can be obtained, and high wall strength magnification can be obtained.

  However, if the thickness 33 of the reinforcing material is too thick, the weight of the reinforcing material becomes heavy and workability deteriorates, and it becomes difficult to drive the nail 3 into the structural material 1 through the reinforcing material.

  Therefore, in the present invention, the thickness 33 of the reinforcing material is 0.5 mm or less. When the thickness 33 of the reinforcing material is 0.5 mm or less, the weight of the reinforcing material 4 becomes light, and when the N50 or N65 nail is used, the reinforcing material can be easily penetrated.

  In the reinforcing material of the present embodiment, a JIS-G-3322: 2008 painted molten aluminum galvanized steel sheet having a thickness of 0.35 mm is used. Here, on the surface of the reinforcing material, a nail driving position 35 indicating a place where the nail for fixing the load bearing surface material to the structural material is displayed is indicated by a nail driving interval 34 calculated so that a predetermined wall strength magnification is obtained. Has been.

  Here, the nail driving interval 34 is determined so as to be a predetermined wall strength magnification according to the nail used and the load bearing surface material used.

  In addition, different nailing positions can be applied to a single reinforcing material so that different nails and different bearing surfaces can be used, or to obtain different wall strength magnifications even if the same nails and bearing surfaces are used. Multiple types may be displayed. In this case, it is preferable that the display of the nail driving position has a different shape so that the nail driving position to be used is not mistaken.

  As a method of displaying the nail driving position, a method of printing, painting, or sticking a mark on the surface of the reinforcing material as in the first embodiment of the nailing position of the reinforcing material shown in FIG. As in the second embodiment at the nail driving position, the method is selected from a method of forming a dent on the surface of the reinforcing material with a punch or the like. Whichever display method is used, any display method may be used as long as the display of the nailing position is not easily lost.

  When the nail driving position 35 is displayed at the center portion of the width 32 of the reinforcing material, there is a risk that the nail 3 may be detached from the structural material 1 such as the trunk difference 8, the intermediate pillar 9, the pillar 10, and the base 12 for construction. Is preferable.

  The length 31 of the reinforcing member of the present invention is shorter than the length 15 of the short side of the load bearing member, and the width 32 of the reinforcing member is the diameter of the trunk of the nail for fixing the load bearing member 2 to the structural member 1. It is 6 to 17 times longer than 3c.

  The width 32 of the reinforcing material may be any size as long as it can hold the nail head 3a. However, when an N65 nail having a nail body diameter 3c of about 3.05 mm is used, When the width 32 is between 18.3 mm, which is 6 times the diameter 3c of the body of the nail, and 51.9 mm, which is 17 times, the handling property when holding the reinforcing material 4 and the operability of the nail driving operation are good. Furthermore, it is preferable because the holding force of the nail head 3a with respect to the reinforcing member 4 is stabilized. Even when N50 nails having a nail barrel diameter 3c of about 2.75 mm are used, for the same reason, the reinforcing member width 32 is from 16.5 mm, which is six times the nail barrel diameter 3c. It is preferably between 17 times 46.75 mm.

  When an N65 nail is used, if the width 32 of the reinforcing material is 18 mm with respect to the diameter of the N65 nail head of about 7.3 mm, the reinforcing material is easily deformed when the nail 3 is driven into the reinforcing material 4. When the width 32 of the reinforcing material is 52 mm, the rigidity of the reinforcing material 4 is improved and the handling property is improved, so that the operability of the nail driving operation is improved and the holding force of the nail head 3a to the reinforcing material 4 is stabilized, but the material cost Will increase the cost.

  When N50 nails are used, when the reinforcing member width 32 is 16 mm with respect to the diameter of the N50 nail head of about 6.6 mm, the reinforcing member is easily deformed when the nail 3 is driven into the reinforcing member 4. When the width 32 of the reinforcing material is 47 mm, the rigidity of the reinforcing material 4 is increased and the handling is improved, so that the operability of the nail driving operation is improved and the holding force of the nail head 3a against the reinforcing material 4 is stabilized. Will increase the cost.

  In this example, a pulp / silicic acid-mixed cement board having a short side length of 910 mm × long side length of 2730 mm × thickness of 9 mm was used as a load bearing surface material, and N65 nails were nailed to 75 mm. A wall strength magnification of 5.0 times was obtained by fixing to the structural material via a reinforcing material at intervals.

  The width 32 of the reinforcing material of this embodiment is 30 mm, which is 9.8 times the diameter of the nail body, and the length of the reinforcing material is shorter than the short side lengths of 910 mm and 1000 mm of general load bearing members. It is 830 mm. Here, since the width of the reinforcing material is 30 mm and the length is 830 mm, use one reinforcing material on the short side of the load bearing surface and three reinforcing materials on the long side of the load bearing surface material as shown in FIG. Therefore, it is not necessary to cut the reinforcing material and workability is good.

  Protrusions 36 for temporarily fixing the reinforcing material 4 to the load bearing surface 2 are formed at two or more places including both ends of the reinforcing material 4 on the surface where the reinforcing material 4 is in contact with the load bearing surface 2. Before the load bearing surface material 2 is fixed to the structural material 1 such as the trunk difference 8, the intermediate column 9, the column 10, the base 12, and the joint column 13 by the protruding portion 36, the protruding portion 36 of the reinforcing material 4 is fixed to the load bearing surface material 2. The reinforcing material 4 can be temporarily fixed at a predetermined position of the load bearing surface material 2 by press-fitting into.

  Examples of the shape of the protrusion are illustrated in FIGS. FIG. 8 shows an example of the protruding portion 36 (361) in which the conical convex portion is formed on the surface of the load bearing surface. Here, Fig.8 (a) is sectional drawing when the reinforcing material 4 is cut | disconnected in the width direction, and FIG.8 (b) is a top view. Here, the tip 37 (371) of the protrusion is a tip of a cone.

  FIG. 9 shows an example of a protrusion 36 (362) in which the reinforcing member 4 is cut into a triangle and a triangular collar is formed on the surface of the load bearing surface. Here, FIG. 9A is a cross-sectional view when the reinforcing member 4 is cut in the width direction. FIG. 9B is a plan view. Further, FIG. 9C is a cross-sectional view of the protrusion 36 (362) when the reinforcing member 4 is cut in the length direction. Here, the tip 37 (372) of the protrusion is a vertex of the triangle. Since the tip 37 (372) of the protruding portion in FIG. 9 can be fitted so as to be difficult to fit into the load-bearing surface material, it is stronger in the load-bearing surface material than the tip 37 (371) of the protruding portion having a conical shape in FIG. It's hard to get in.

  FIG. 10 shows an example of the protrusion 36 (363) in which the hole flange 39 is formed on the surface of the load bearing surface. Here, Fig.10 (a) is sectional drawing when the reinforcing material 4 is cut | disconnected in the width direction. FIG. 9B is a plan view. Here, the tip 37 (373) of the protruding portion is a flange tip of the hole flange 39. Accordingly, since the tip 37 (373) of the protruding portion in FIG. 10 is fitted into the load bearing face 2 in a circular shape, the load bearing face 2 is more strongly harder than the tip 37 (372) of the protruding portion made of a triangular collar in FIG. Include.

  Here, the shape of the hole flange 39 may be any shape such as an ellipse, a square, or a triangle in addition to the circle in FIG. 10, but a circle is preferable in terms of ease of processing the hole flange 39. Further, it is preferable that the tip 37 (373) of the hole flange is formed at a right angle to the surface of the reinforcing member 4 because it is easy to fit into the load bearing member 2.

  Further, when the protruding portion 36 is formed at the same location as the nail driving position 35, the nail driving position 35 and the protruding portion 36 can be processed at the same time. It is preferable that the portion 36 and the nail driving position 35 are not easily confused.

DESCRIPTION OF SYMBOLS 1 Structural material 2 Load bearing surface 3 Nail 3a Nail head 3b Nail trunk | drum 3c Diameter of the nail | cylinder part 4 Reinforcement material 5 Load direction 6 The space | gap part by the nail inside a structural material 7 Punching shear 8 Trunk difference 9 Column 10 Column 11 Reinforcement Hardware 12 Base 13 Joint column 15 Short side length 31 Reinforcement material length 32 Reinforcement material width 33 Reinforcement material thickness 34 Nail driving interval 35 Nail driving position 36 Protruding part 37 Protruding part tip 38 Flange 39 Hole flange

Claims (4)

In the load-bearing wall made of load-bearing surface materials for wooden framed houses,
A reinforcing material sandwiched between a nail head of the nail for fixing the load bearing member to the structural member and the load bearing member,
The reinforcing member has a length shorter than the length of the short side of the load bearing member, a width in the range of 6 to 17 times the diameter of the body of the nail, and a thickness of 0.5 mm or less. It consists of a strip-shaped thin metal plate consisting of
A reinforcing material, wherein a nailing position for giving a predetermined wall strength magnification is displayed on the surface of the reinforcing material.   The reinforcing material according to claim 1, wherein protrusions for temporarily fixing the reinforcing material to the load bearing surface material are formed at two or more locations including both ends of the reinforcing material.   The reinforcing member according to claim 2, wherein the projecting portion is a hole flange.   4. The reinforcing material according to claim 2, wherein the protruding portion is formed so as to overlap the nail driving position.

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