JP2006214135A - Reinforcing method for wooden structure, reinforcing structure of wooden structure, and reinforcing joint device for wooden structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reinforcing method for a wooden structure for reinforcing structural strength while reducing play of a column and a horizontal member and reducing a space required for reinforcement. <P>SOLUTION: This reinforcing method for the wooden structure BLD1 having a sill 2 on which a horizontal face 2a is butted on end faces 3a of the column 3 and the column 3 comprises a step for fixing the joint device 11 having a column side plate part 11a and a horizontal member side plate part 11b crossing orthogonally and mutually and forming L-shaped cross section to the column 3 and a process for fixing the joint device 11 fixed to the column 3 to the sill 2 by a lug screw 15 passing through the horizontal member side plate part 11b from the horizontal member side plate part 11b in the direction of sill 2 and inserted into the sill 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a method for reinforcing a wooden building, a reinforcing structure for a wooden building, and a joint for reinforcing a wooden building. More specifically, the present invention has a column and a horizontal member such as a base or a beam. It relates to methods for reinforcing wooden buildings.

As a seismic reinforcement method such as prevention of lifting of a column when an earthquake occurs, a method of fixing a reinforcing hardware to a fixing portion (joint portion) between a column and a horizontal member is known (for example, Patent Document 1). . Patent Document 1 discloses a technique for attaching a hardware having a T-shaped planar shape to a joint portion.
JP 09-144143 A

  In a building, there may be a backlash between a column and a horizontal member due to a dimensional error of a member, a skill of a worker at the time of building or reinforcement, and the like. In this case, the column and the horizontal member are easily displaced by an amount corresponding to the backlash, and the structural strength is reduced. In addition, the reinforcement method which paid its attention to the play in wooden construction is not proposed.

  In the reinforcing method using the hole-down mold, it is considered that the backlash between the column and the horizontal member can be reduced because the fastening force of the bolt acts in the direction in which the column and the horizontal member are brought into close contact with each other. However, when a hole-down mold is used, a space for arranging the hole-down mold is required on the outer peripheral side of the column, and the range in which the reinforcement method using the hole-down mold can be applied is limited.

  The present invention reinforces structural strength while reducing backlash between a pillar and a horizontal member, and can reinforce a wooden building capable of reducing a space required for reinforcement, a reinforcing structure for a wooden building, and a wooden building The object is to provide a reinforcing joint.

  A reinforcing method of a wooden building according to a first aspect of the present invention is a reinforcing method of a wooden building having a column and a horizontal member whose horizontal plane abuts on an end surface of the column, and has an L-shaped cross section orthogonal to each other. A joining tool having a column-side plate portion and a horizontal member-side plate portion to be formed, wherein the column-side plate portion is arranged to be opposed to a side surface of the column, and the horizontal member-side plate portion is fixed to the horizontal member. The step of fixing the connector fixed to the pillar so as to be disposed opposite to the horizontal plane, and the connector fixed to the column from the horizontal member side plate portion to the horizontal member in the horizontal member side plate portion. And fixing to the horizontal member with a screw or a nail inserted through the horizontal member.

  Preferably, the step of fixing the connector to a horizontal member for reinforcement (horizontal member) that is arranged across the horizontal member side plate portion on the horizontal surface of the horizontal member and is horizontally placed between the two pillars. Further, in the step of fixing the connector to the column, the column not fixed to the horizontal member and the connector not fixed to the horizontal member are fixed, and the connector is fixed to the reinforcing horizontal In the step of fixing to the material, the step of fixing the reinforcing horizontal member not fixed to the horizontal member and the connector not fixed to the horizontal member, and fixing the connector to the horizontal member, The joint fixed to the pillar and the reinforcing horizontal member is inserted into the horizontal member through the reinforcing horizontal member and the horizontal member plate portion from the reinforcing horizontal member toward the horizontal member. Screw or nail Serial fixed to the horizontal member.

  According to a second aspect of the present invention, there is provided a method for reinforcing a wooden building, comprising: a column and a horizontal member; and an end surface of one of the columns and the horizontal member is in contact with a side surface of the other member. A reinforcing method,

  A connector having two plate portions that are orthogonal to each other and have an L-shaped cross section, wherein one plate portion is disposed opposite to a side surface of the one member and fixed, and the other plate portion is the other plate portion. The step of fixing the connector fixed to the one side facing the side surface of the member is fixed to the one member, and the connector fixed to the one member is moved from the other plate portion toward the other member. And fixing to the other member with a screw or a nail inserted through the other plate portion and inserted into the other member.

  The reinforcing structure of a wooden building according to a third aspect of the present invention is a reinforcing structure of a wooden building having at least two columns and a horizontal member in which a horizontal plane abuts against the end surfaces of the two columns. A joint device having a column side plate portion and a horizontal member side plate portion that form an L-shaped cross section orthogonal to each other, wherein the column side plate portion is disposed to be opposed to a side surface of the column, and is fixed to the horizontal member side. A connector in which a plate portion is disposed to be fixed to be opposed to the horizontal surface of the horizontal member, and a horizontal member-side plate portion is disposed on the horizontal surface of the horizontal member, and is horizontally mounted between the two columns. A reinforcing horizontal member, a screw or a nail inserted into the connecting member and the reinforcing horizontal member from the connector to the reinforcing horizontal member, and from the reinforcing horizontal member to the horizontal member. The reinforcing horizontal member and the connector Penetrating, and a screw or nail is inserted into the horizontal member.

  The reinforcing structure of a wooden building according to a fourth aspect of the present invention is a reinforcing structure of a wooden building having at least two columns and a horizontal member in which a horizontal plane abuts against end surfaces of the two columns. A joining tool having a column-side plate portion and a horizontal member-side plate portion that are orthogonal to each other and have an L-shaped cross section, wherein the column-side plate portion is disposed and fixed facing a side surface of the column, and the horizontal member-side plate A connector having a portion opposed to and fixed to the horizontal surface of the horizontal member, a cover plate stacked on the horizontal member side plate portion, and the cover plate and the horizontal from the cover plate toward the horizontal member A screw or a nail that penetrates the member side plate and is inserted into the horizontal member.

  The reinforcing structure of a wooden building according to a fifth aspect of the present invention is a reinforcing structure of a wooden building having at least two columns and a horizontal member in which a horizontal plane abuts against end surfaces of the two columns. A joining tool having a column-side plate portion and a horizontal member-side plate portion that are orthogonal to each other and have an L-shaped cross section, wherein the column-side plate portion is disposed and fixed facing a side surface of the column, and the horizontal member-side plate And a plywood fixed to the two pillars, the plywood opening between the plywood and the horizontal member. It arrange | positions so that a part may be formed.

  The reinforcing structure of the wooden building according to the sixth aspect of the present invention is supported by at least two pillars, a base that supports the two pillars, and a horizontal plane in contact with the upper end surfaces of the two pillars. And a columnar plate portion and a horizontal member side plate portion that are orthogonal to each other and have an L-shaped cross section, wherein the column side plate portion is A fixture that is arranged to be opposed to and fixed to the side surface of the column, and the horizontal member side plate portion is arranged to be arranged to be opposed to the horizontal surface of the body difference, and a column side plate portion that is orthogonal to each other and has an L-shaped cross section, and a horizontal plate A joining tool having a member side plate portion, wherein the column side plate portion is fixed to be opposed to the side surface of the column, and the horizontal member side plate portion is arranged to be fixed to be opposed to the horizontal surface of the base. Each of the two pillars It provided for.

  The reinforcing structure of the wooden building according to the seventh aspect of the present invention is supported by at least two pillars, a base that supports the two pillars, and a horizontal plane in contact with the upper end surfaces of the two pillars. And a columnar plate portion and a horizontal member side plate portion that are orthogonal to each other and have an L-shaped cross section, wherein the column side plate portion is A connector that is disposed and fixed opposite to a side surface of the column, and the horizontal member side plate portion is disposed and fixed to a horizontal surface of the trunk difference, and a bolt that is fixed to the column and inserted into the base are inserted. Hole-down hardware is provided for each of the two pillars.

  Preferably, the horizontal member side plate portion is provided with a notch on the side opposite to the column side plate portion.

  A reinforcing joint according to an eighth aspect of the present invention is a reinforcing joint for a wooden building having a column and a horizontal member whose horizontal surface abuts on an end surface of the column, and has an L-shaped cross section orthogonal to each other. A column side plate portion and a horizontal member side plate portion to be formed, the horizontal member side plate portion is formed by punching the horizontal member side plate portion and a plurality of holes for inserting screws or nails; And a projecting portion that projects to the lower side of the L-shape.

  In addition, the reinforcing method, the reinforcing structure, and the connector according to the first to eighth aspects of the present invention can be appropriately combined.

  According to the present invention, it is possible to reinforce the structural strength while reducing the backlash between the column and the horizontal member, and to reduce the space necessary for reinforcement.

First embodiment
Reinforcing Structure FIG. 1 is a front view showing a reinforcing structure STR1 according to the first embodiment of the present invention, and FIG. 2 is a cross-sectional view showing the reinforcing structure STR1. The reinforcing structure STR1 is configured as a wall structure for reinforcing the wooden building BLD1 with earthquake resistance.

  The wooden building BLD1 is a house constructed by, for example, a so-called frame construction method. The wooden building BLD 1 is supported by the pillar 3, the base 2 supported by the base 1, the pillar 3 supported by the base 2, and the pillar 3 as members constituting the inner wall or the outer wall. The body difference 4 is provided. The base 2 and the trunk difference 4 each function as a horizontal member of the present invention.

  The base 1 is made of, for example, concrete, and a lower portion is buried in the soil, and an upper portion projects into the soil. The base 2 is made of, for example, wood having a rectangular cross section, and is arranged so as to lie on top of the base 1. The floor surface FL is located above the base 2.

  The column 3 is made of, for example, wood having a rectangular cross section, and the lower end surface 3a is supported by being in contact with the upper surface (horizontal surface, side surface in the longitudinal direction) 2a of the base 2. Further, the pillar 3 is positioned in the horizontal direction with respect to the base 2 by fitting and inserting the protruding portion 3b protruding from the lower end surface 3a into the hole 3b provided in the upper surface 2a of the base 2. . A plurality of pillars 3 are provided on a single base 2 at a predetermined interval. FIG. 1 illustrates two pillars 3.

  The trunk difference 4 is made of, for example, wood having a rectangular cross section, and a lower surface (horizontal surface, side surface with respect to the longitudinal direction) 4 a is supported by being in contact with the upper end surface 3 c of the column 3. Further, the trunk difference 4 is positioned in the horizontal direction with respect to the column 3 by fitting and inserting the protruding portion 3d protruding from the upper end surface 3c of the column 3 into the hole 4b provided in the lower surface 4a. Yes. One trunk difference 4 is supported on a plurality of pillars 3. In FIG. 1, the state supported by the two pillars 3 is illustrated. A ceiling surface CL is located below the trunk difference 4. The dimensions of the base 2, the pillar 3, and the trunk difference 4 may be appropriately set. For example, the dimensions of the cross sections may be the same.

  The reinforcing structure STR1 includes a receiving member 5 that is horizontally mounted on two pillars 3 and a structural plywood 6 that is fixed to the pillars 3 and the receiving member 5 in order to reinforce the structural strength of the wooden building BLD1. Is included.

  The receiving material 5 is made of, for example, wood having a rectangular cross section. A plurality of receiving members 5 are arranged, for example, three pieces are arranged to fix the upper end, the center, and the lower end of the plywood 6. As shown in FIG. 2, the receiving member 5 is arranged such that the front side surface 5 a of the receiving member 5 is connected to the front side surface 3 e of the column 3. The receiving material 5 is fixed to the column 3 via a metal fitting 7 fixed to the column 3, for example.

  The plywood 6 is made of, for example, plate-like wood and has a width extending over the two pillars 3 and a length L2 (for example, 4/5 of L1) shorter than the distance L1 from the base 2 to the trunk difference 4. ing. The plywood 6 is fixed to the two pillars 3 and the receiving material 5 by a fixture 8 such as a lag screw (screw) or a nail. The plywood 6 has an opening SP2 between the lower end 6a of the plywood 6 and the base 2, and an opening SP2 between the upper end 6b of the plywood 6 and the trunk difference 4. Thus, it is arranged on the center side between the base 2 and the trunk difference 4. The plywood 6 may be composed of a single sheet, or may be composed of two sheets that are divided at an intermediate position between the heights of the receiving members 5 located in the middle of the height direction.

  The openings SP1 and SP2 need only have a size required for fixing the joints 11 and 16 to the base 2 and the trunk difference 4 described later. For example, L1 = 2730 mm, L2 = 1820 mm, column spacing (center-to-center distance) L3 = 910 mm, and SP1 and SP2 may each have a space of approximately 400 mm × 800 mm and 200 mm × 800 mm, respectively.

  The reinforcing structure STR1 includes a joint (second joint) 11 for joining the base 2 and the pillar 3 for the purpose of, for example, increasing the pulling resistance between the base 2 and the pillar 3 to prevent floating. A joining tool 11 and a fixed horizontal member 12 for reinforcement are provided.

  The reinforcing horizontal member 12 is made of, for example, wood having a rectangular cross section, and is disposed so as to face the upper surface 2a of the base 2 with a horizontal member side plate portion 11b of a joint portion 11 to be described later interposed therebetween. It is laid horizontally between. The length of the reinforcing horizontal member 12 (the left-right direction in FIG. 1) is set to be substantially the same as the distance between the two pillars 3 (the distance between the side surfaces). The column 11 is fitted between the two columns 3 via the column side plate portion 11 a of the unit 11. The reinforcing horizontal member 12 (17) has, for example, a cross section of 105 mm × 105 mm and a length of 800.4 mm.

  FIG. 3 is a view showing the connector 11, FIG. 3 (a) is a view seen from the left and right direction in FIG. 1, and FIG. 3 (b) is a view seen in the direction perpendicular to the page in FIG. FIG. 3C is a view as seen in the up and down direction of FIG. 1, and FIG. 3D is an enlarged view of a part of the connector 11.

  The connector 11 is made of, for example, metal, and is formed by bending a single plate. The joint 11 is formed in a L-shaped cross section as a whole, and has a column side plate portion 11a and a horizontal member side plate portion 11b which are each formed in a plate shape and are orthogonal to each other. As shown in FIG. 1, the column side plate portion 11 a faces the side surface 3 g on the side where the base 2 of the column 3 extends and faces the other column 3, and the horizontal member side plate portion 11 b The connector 11 is disposed so as to face the upper surface 2a.

  As shown in FIGS. 3A and 3B, the column side plate portion 11a is provided with a plurality of through holes 11c. As shown in FIG. 1, a fixture 13 such as a lag screw or a nail is inserted into the through hole 11 c from the column side plate portion 11 a toward the column 3 and is screwed or driven into the column 3. The connector 11 is fixed to the column 3. A bolt and a nut may be used as the fixture 13.

  As shown in FIGS. 3B and 3C, the horizontal member side plate portion 11b is provided with a plurality of through holes 11d and 11e. As shown in FIG. 1, a fixture 14 such as a lag screw or a nail is inserted through the through holes 11 d and 11 e from the horizontal member side plate portion 11 b toward the reinforcing horizontal member 12, and is screwed into the reinforcing horizontal member 12. By being worn or driven in, the connector 11 and the reinforcing horizontal member 12 are fixed. A bolt and a nut may be used as the fixture 14.

  A fixing tool 15 such as a lag screw or a nail penetrates the reinforcing horizontal member 12 from the reinforcing horizontal member 12 toward the horizontal member side plate portion 11b and the base 2, and is inserted into the through holes 11d and 11e. The connector 11, the reinforcing horizontal member 12 and the base 2 are fixed to each other by being screwed or driven into the reinforcing horizontal member base 2.

  The number and arrangement of the through holes 11c, 11d, and 11e and the sizes of the fixtures 13, 14, and 15 may be set as appropriate. For example, as shown in FIG. 3 (c), in the horizontal member side plate portion 11b, the through hole 11d is provided on the column side plate portion 11a side, and the diameter opposite to the through side hole 11d is provided on the side opposite to the column side plate portion 11a. The through hole 11e is used as a through hole through which a fixing tool having a relatively small diameter for positioning the joint portion 11 with respect to the base 2 is inserted, and the through hole 11d is used as the joint portion 11. You may utilize as a through-hole which penetrates the fixing tool with a comparatively big diameter for fixing to the base 2 comparatively firmly.

  The horizontal member side plate portion 11b is formed by punching out the horizontal member side plate portion 11b, and is provided with a protruding portion 11f protruding outside the L shape, that is, on the base 2 side. For example, as shown in FIG. 3C, the protrusion 11f is formed in an isosceles triangle having a planar shape with the column side plate portion 11a side as the apex and the side opposite to the column side plate portion 11a as the base. The top portion of the triangle is punched so that the top portion protrudes toward the base 2 side. Further, as shown in FIG. 3D, the bending angle of the protruding portion 11f with respect to the horizontal member side plate portion 11b is set to be smaller than a right angle.

  As shown in FIG. 1, the reinforcing structure STR <b> 1 has a connector 16 that joins the column 3 and the trunk difference 4 for the purpose of increasing the pulling resistance between the column 3 and the trunk difference 4 to prevent floating. (First connector) and a reinforcing horizontal member 17 fixed to the connector 16.

  The joining tool 16 and the reinforcing horizontal member 17 have the same configuration as the joining tool 11 and the reinforcing horizontal member 12. The joining tool 16 is fixed to the pillar 3 by the fixing tool 18, and the joining tool 16 is reinforced by the fixing tool 19. The fixing to the horizontal member 17 and the fixing of the joint 16 to the trunk difference 4 by the fixing tool 20 are respectively performed to fix the joining tool 11 to the pillar 3 by the fixing tool 13 and to reinforce the joining tool 11 by the fixing tool 14. This is the same as the fixing to the material 12 and the fixing of the joint 11 to the base 2 by the fixing 15. However, the joining tool 16, the reinforcing horizontal member 17, and the fixing members 18 to 20 are all arranged vertically symmetrically with respect to the joining tool 11, the reinforcing horizontal member 12, and the fixing members 13 to 15. In addition, below, each part of the connector 16 corresponding to each part 11a-11f of the connector 11 may be described as each part 16a-16f by replacing the code | symbol 11 with 16. FIG.

Construction Procedure FIG. 4 is a flowchart showing the procedure of the reinforcing method. First, a preliminary survey is performed on a wooden building BLD1 that has already been constructed (step ST1). At this time, the wooden building CLD1 is not reinforced by the reinforcing structure STR1 of the present embodiment. In the pre-investigation, work such as obtaining various information necessary for construction such as the possibility of reinforcement and selection of reinforcement method is performed. For example, with respect to the column base, it is confirmed that there is no decay or unevenness in the portion to which the reinforcing member such as the connector 11 is attached, and dust is removed. Also, investigate whether there are anchor bolts in the vicinity.

  Next, a reinforcing method (type) is appropriately selected based on the information obtained by the preliminary survey (step ST2). For example, the present embodiment or any one of second to fourth embodiments described later is selected according to the presence or absence and position of the anchor bolt. Further, for example, depending on whether or not a bolt or the like protrudes from the base 2 in the vicinity of the pillar 3, the connector 11 of this embodiment or a U-shaped connector to be described later is selected.

  When this embodiment is selected in the selection of the reinforcing method, the joints 11 and 16 are attached to the reinforcing horizontal members 12 and 17 (step ST3). The mounting surfaces of the reinforcing horizontal members 12, 17 are confirmed, and the reinforcing horizontal members 12, 17 are positioned on the mounting surface between the columns 3 (step ST4).

  The joining tools 11 and 18 are fixed to the column 3 by the fixing tools 13 and 18 (step ST5). Next, the receiving material 5 is attached to the pillar 3 (step ST6). Then, the plywood 6 is attached to the receiving material 5 (step ST7).

  The protrusions 11 f and 16 f are deformed in the direction of the reinforcing horizontal members 12 and 17 by the load received from the base 2 and the trunk difference 4. By the deformation, the pillar 3 receives a biasing force in a direction away from the base 2 and the trunk difference 4 from the protrusions 11f and 16f. In other words, the protrusions 11 f and 16 f function as leaf springs (biasing means) interposed between the pillar 3, the base 2, and the trunk difference 4. When the bending rigidity of the protrusions 11f and 16f is set to be relatively high, a gap is generated between the horizontal member side plate portions 11b and 16b of the joints 11 and 16 and the base 2 or the trunk difference 4. .

  Next, the base 2 and the connecting tool 11 are fixed by the fixing tool 15, and the trunk difference 4 and the connecting tool 16 are fixed by the fixing tool 20 (step ST8). At this time, the fasteners 15 and 20 are fastened against the urging force of the protrusions 11f and 16f. When there is a gap between the horizontal member side plate portions 11 b and 16 b of the joints 11 and 16 and the base 2 or the trunk difference 4, the protrusions 11 f and 16 f are pushed in by the base 2 or the trunk difference 4. , The gap disappears. Then, reattach the removed floorboard or ceiling.

  Note that the fixing between the connector 11 and the base 2 (step ST8) reduces the gap between the end surface 3a of the column 3 and the upper surface 2a of the base 2 by reducing or increasing the pressure. That's fine. Therefore, for example, in a state where the joining tool 11 and the column 3 are temporarily fixed by the fixing tool 13, the joining tool 11 and the pillar 3 are finally fastened by the fixing tool 13, and the joining tool 16 by the fixing tool 15 is used. You may make it perform final fastening with the base 2. FIG. The fixing of the joint 16 and the trunk difference 4 is the same.

  According to the above embodiment, after fixing the joining tools 11 and 16 to the pillar 3, the joining tools 11 and 16 are pressed in a direction in which the pillar 3 abuts against the base 2 or the trunk difference 4, and the base 2 or the trunk. In order to fix the connectors 11 and 16 to the difference 4, the play between the pillar 3 and the base 2 or the trunk difference 4 is reduced.

  In order to reinforce with the lag screw inserted into the horizontal member side plate portions 11b, 16b, etc., it does not require a space for providing a joining tool in the direction perpendicular to the paper surface of FIG. It is not necessary to remove or attach the ceiling or floor board for removing or attaching the pillar 3.

  Since the plywood 6 is arranged so that the openings SP1 and SP2 are formed, a work space for securing the joints 11 and 16 to the base 2 and the trunk difference 4 is secured by the fixtures 15 and 20, thereby facilitating the work. .

  Since both the fixation between the pillar 3 and the base 2 and the fixation between the pillar 3 and the trunk difference 4 are reinforced, the structural strength is effectively increased.

  Since the fasteners 15 and 20 are fastened against the urging force of the protrusions 11f and 16f, the fastening force by the fasteners 15 and 20 can be increased. That is, an effect equivalent to the reduction in play between the pillar 3 and the base 2 and the trunk difference 4 can be obtained. Further, since the protrusions 11f and 16f are punched into a triangle and the tip is formed at an acute angle, the tip bites the base 2 and the trunk difference 4, and the joints 11 and 16 are more firmly fixed.

Second embodiment
Reinforcing Structure FIG. 5 is a diagram showing a reinforcing structure STR2 according to the second embodiment of the present invention. In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, and the description thereof is omitted.

  In the second embodiment, a member corresponding to the reinforcing horizontal member 12 that is laid on the base 2 side of the first embodiment is not provided, and the first member is fixed to the joint 11 and the base 2. It is different from the embodiment.

  FIG. 6 is an enlarged cross-sectional view showing a fixing portion between the connector 11 and the base 2. As shown in FIG. 6, a cover plate 31 is laminated on the upper surface side (the side opposite to the base 2) of the horizontal member side plate portion 11 b of the connector 11.

  7A is a view of the cover plate 31 as viewed from above and below in FIG. 5. FIG. 7B is a view in which the cover plate 31 is stacked on the horizontal member side plate portion 11b in the up and down direction of FIG. It is the figure seen from.

  The cover plate 31 is made of metal, for example. The cover plate 31 is formed in a substantially rectangular plate shape, for example, and is formed slightly narrower than the horizontal member side plate portion 11b. For example, the width of the cover plate 31 in the direction orthogonal to the longitudinal direction of the base 2 (the vertical width in FIG. 7) is set to be substantially the same as that of the horizontal member side plate portion 11b, and the length of the base 2 in the longitudinal direction. The length (the length in the left-right direction in FIG. 7) is set to 80% to 90% of the length of the recumbent member side plate portion 11b. The cover plate 31 is formed thicker than the horizontal member side plate portion 11b. For example, the thickness of the cover plate 31 is set to twice the thickness of the horizontal member side plate. As shown in FIG. 6, the cover plate 31 is disposed so that the edge portion 31a abuts on the column side plate portion 11a, and on the side opposite to the column side plate portion 11a, the end of the horizontal member side plate portion 11b. The part is exposed.

  As shown in FIG. 7, the cover plate 31 includes a plurality of through holes 31b respectively connected to a plurality of through holes 11d (see FIGS. 3C and 6) of the horizontal member side plate portion 11b, and a horizontal member side plate. A plurality of through holes 31c respectively connected to the plurality of through holes 11e (see FIGS. 3C and 6) of the portion 11b are formed. A part of the plurality of through holes 11e of the horizontal member plate portion 11b is exposed without being covered with the cover plate 31.

  As shown in FIG. 6, the connector 11 is inserted into the exposed through-hole 11 e without being covered with the cover plate 31 from the connector 11 toward the base 2, and is screwed or driven into the base 2. Or a fixing tool 32 such as a lag screw or a nail and the cover plate 31 from the cover plate 31 toward the base 2 and inserted into the through-hole 31c of the cover plate 31 and the through-hole 11e of the connector 11 and screwed to the base 2 or A fixing tool 33 such as a lag screw or a nail to be driven, and a through hole 31b of the cover plate 31 and a through hole 11d of the connector 11 are inserted from the cover plate 31 toward the base 2 and screwed to the base 2. Or it is fixed to the base 2 by a fixing tool 34 such as a lag screw or a nail to be driven.

  The fixing tool 32 is used for positioning the bonding tool 11, the fixing tool 33 is used for positioning the cover plate 31, and the fixing tool 34 fixes the bonding tool 11, the cover plate 31, and the bonding tool 11 more firmly. For example, a fixture 34 having a larger diameter than the fixtures 32 and 33 is used for the fixture 34.

Construction method In the second embodiment, construction may be performed according to the procedure shown in FIG. 4 as in the first embodiment.

  When fixing the joining tool 11 to the base 2, first, the fixing tool 13 is provided so as to ensure a predetermined amount (for example, 2 mm) of clearance between the horizontal member side plate portion 11 b and the upper surface 2 a of the base 2. The column side plate portion 11a is fixed to the column 3 by the above. At this time, the fixture 11 is also positioned by the fixture 32. Next, the cover plate 31 is positioned by the fixing tool 33, and then the joining tool 11 and the base 2 are finally fastened by the fixing tool 34.

  According to the second embodiment, the same effect as in the first embodiment can be obtained. Moreover, by laminating the cover plate 31 on the horizontal member side plate portion 11b, the bending rigidity of the horizontal member plate portion 11b is reinforced, and the pulling resistance is enhanced.

Third embodiment
Reinforcing Structure FIG. 8 is a diagram showing a reinforcing structure STR3 according to the third embodiment of the present invention. In the third embodiment, the same configurations as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and description thereof is omitted.

  In the reinforcement structure STR3, the hole-down hardware (second joint) 41 and the hole-down hardware 41 are inserted for the purpose of, for example, increasing the pulling resistance between the base 2 and the pillar 3 to prevent floating. Bolts 42 are used. FIG. 9 is a perspective view showing the hole-down hardware 41. The hole-down hardware 41 includes an attachment portion 41 a for attaching to the pillar 3 and a bolt insertion portion 41 b for inserting the bolt 42. The attachment portion 41a is formed in a long flat plate shape, and a plurality of through holes 41c are provided along the longitudinal direction for inserting a fixture such as a lag screw, bolt, or nail. The insertion part 41b is formed with a hole part 41d for inserting the bolt 42 in a direction parallel to the longitudinal direction of the attachment part 41a.

  As shown in FIG. 8, the hole-down hardware 41 is a side surface of the pillar 3 on the side where the base 2 extends, and an attachment portion 41 a is disposed opposite to the outer side face 3 h of the two pillars 3, and the through hole 41 c ( It fixes to the pillar 3 with the fixing tool not shown inserted by FIG. The bolt 42 inserted through the hole-down hardware 41 penetrates the base 2 and is inserted into the base 1 to reinforce the fixing portion between the base 2 and the pillar 3.

Construction method Also in the third embodiment, construction may be performed according to the procedure shown in FIG. 4 as in the first embodiment. However, step ST3 is omitted, and in step ST5, the hole-down hardware 41 is fixed to the pillar 3.

  In addition, in the pre-investigation (step ST1), it is necessary to collect information on the foundation 1 such as confirming that the foundation 1 has no yield strength deterioration or confirming or estimating whether the foundation 1 is muscular or unmuscular. is there.

  According to the third embodiment, the same effect as in the first embodiment can be obtained.

Fourth Embodiment FIG. 10 is a view showing a reinforcing structure STR3 according to a fourth embodiment of the present invention. In the fourth embodiment, the same configurations as those of the first and third embodiments are denoted by the same reference numerals as those of the first and third embodiments, and description thereof is omitted.

  In the fourth embodiment, the hole-down hardware 41 is the side surface of the pillar 3 on the side on which the base 2 extends, and the attachment portion 41 a is disposed opposite to the inner side face 3 g of the two pillars 3. It is fixed. The construction method is the same as in the third embodiment.

  According to the fourth embodiment, the same effect as in the first embodiment can be obtained.

Modification FIG 11 of the joining tool is a diagram showing the bonding tool 50 is a modification of the welding tool 11 or 16 of the first and second embodiments. The connector 50 has the same configuration as the connector 11. In FIG. 11, each part of the connector 50 corresponding to each part 11a-11f of the connector 11 may be described as each part 50a-50bf by replacing the reference numeral 11 with 50.

  The joining tool 50 is provided with a notch 50h on the side opposite to the column side plate 50a of the horizontal member side plate 50b, and the planar shape is substantially U-shaped.

  Moreover, in FIG. 11, the cover plate 51 which is the modification of the cover plate 31 of 2nd Embodiment is shown with the dotted line. The cover plate 51 is provided with a notch 51h on the side opposite to the column side plate 50a of the horizontal member side plate 50b, and the planar shape is substantially U-shaped. The notch 51h is formed in a shape and size whose edge coincides with the edge of the notch 50h.

  According to this modification, for example, when the bolt head of the bolt for fixing the base 2 to the foundation 1 protrudes on the upper surface 2a of the base 2, the horizontal member side plate portion 50b or A cover plate 51 can be arranged.

  The present invention is not limited to the above embodiment, and may be implemented in various aspects.

  The present invention may be applied not only when reinforcing the structural strength of an already constructed wooden building, but also when constructing a new wooden building.

  The horizontal member only needs to support the column or be supported by the column and be orthogonal to the column, and is not limited to the trunk difference. For example, it may be a beam or a girder supported by the column with the end surface being in contact with the side surface of the column.

  The protruding portion only has to protrude so that the side surface of the member such as the base 2 that abuts can be biased, and the shape, size, and bending angle with respect to the plate portion may be appropriately set.

  The cover plate only needs to be able to reinforce the bending rigidity of the horizontal member side plate portion, and is not limited to a plate narrower than the horizontal member side plate portion or thicker than the horizontal member side plate. For example, the cover plate may have the same area as or larger than the horizontal member side plate portion, or may have the same thickness as or less than the horizontal member side plate.

It is a figure which shows the reinforcement structure of the 1st Embodiment of this invention. It is sectional drawing which shows the reinforcement structure of FIG. It is a figure which shows the connector contained in the reinforcement structure of FIG. It is a flowchart which shows the construction procedure of the 1st Embodiment of this invention. It is a figure which shows the reinforcement structure of the 2nd Embodiment of this invention. It is a figure which shows the connector contained in the reinforcement structure of FIG. It is a figure which shows the cover plate contained in the reinforcement structure of FIG. It is a figure which shows the reinforcement structure of the 3rd Embodiment of this invention. FIG. 9 is a perspective view showing a hole-down hardware included in the reinforcing structure of FIG. 8. It is a figure which shows the reinforcement structure of the 4th Embodiment of this invention. It is a figure which shows the modification of the connector contained in the reinforcement structure of the 1st and 2nd embodiment of this invention.

Explanation of symbols

2 ... Horizontal member, 3 ... Column, 11 ... Joint, 11a ... Column side plate portion, 11b ... Horizontal member side plate portion, 15 ... Screw, nail.

Claims (10)

A method of reinforcing a wooden building having a pillar and a horizontal member whose horizontal surface abuts on an end face of the pillar,
A joint device having a column side plate portion and a horizontal member side plate portion that form an L-shaped cross section orthogonal to each other, wherein the column side plate portion is disposed to be opposed to a side surface of the column, and is fixed to the horizontal member side. A step of fixing a connector, which is arranged to be opposed to and fixed to the horizontal surface of the horizontal member, to the pillar;
The connector fixed to the pillar is fixed to the horizontal member by a screw or a nail inserted through the horizontal member side plate portion from the horizontal member side plate portion in the direction of the horizontal member. And a process of
Reinforcing method for wooden buildings. A step of fixing the joining tool to a reinforcing horizontal member, which is disposed across the horizontal member side plate portion on the horizontal surface of the horizontal member, and is laid between the two pillars;
In the step of fixing the connector to the column, the column that is not fixed to the horizontal member and the connector that is not fixed to the horizontal member are fixed,
In the step of fixing the connector to the reinforcing horizontal member, the reinforcing horizontal member that is not fixed to the horizontal member and the connector that is not fixed to the horizontal member are fixed,
In the step of fixing the connector to the horizontal member, the reinforcing member fixed to the column and the reinforcing horizontal member is moved from the reinforcing horizontal member to the horizontal member in the direction of the horizontal member. The method for reinforcing a wooden building according to claim 1, wherein the wooden member is fixed to the horizontal member by a screw or a nail inserted through the member plate portion and inserted into the horizontal member. A method of reinforcing a wooden building having a column and a horizontal member, wherein an end surface of one of the columns and the horizontal member abuts against a side surface of the other member,
A connector having two plate portions that are orthogonal to each other and have an L-shaped cross section, wherein one plate portion is disposed opposite to a side surface of the one member and fixed, and the other plate portion is the other plate portion. A step of fixing to the one member a connector that is disposed opposite to the side surface of the member and fixed;
The connector fixed to the one member is inserted into the other member by passing through the other plate portion from the other plate portion toward the other member. Fixing to the member;
Reinforcing method for wooden buildings. A reinforcing structure of a wooden building having at least two pillars and a horizontal member whose horizontal plane abuts against end faces of the two pillars,
A joint device having a column side plate portion and a horizontal member side plate portion that form an L-shaped cross section orthogonal to each other, wherein the column side plate portion is disposed to be opposed to a side surface of the column, and is fixed to the horizontal member side. A connector in which a plate portion is arranged to be opposed to and fixed to the horizontal surface of the horizontal member;
A horizontal member for reinforcement that is disposed across the horizontal member side plate portion on the horizontal surface of the horizontal member, and is laid across the two pillars;
A screw or a nail inserted into the joint and the reinforcing horizontal member from the joint toward the reinforcing horizontal member;
A screw or nail that penetrates the reinforcing horizontal member and the connector from the reinforcing horizontal member in the direction of the horizontal member and is inserted into the horizontal member;
Reinforced structure of wooden building with A reinforcing structure of a wooden building having at least two pillars and a horizontal member whose horizontal plane abuts against end faces of the two pillars,
A joining tool having a column-side plate portion and a horizontal member-side plate portion that are orthogonal to each other and have an L-shaped cross section, wherein the column-side plate portion is disposed and fixed facing a side surface of the column, and the horizontal member-side plate A joint that is disposed and fixed to be opposed to the horizontal surface of the horizontal member;
A cover plate stacked on the horizontal member side plate portion;
A screw or nail that passes through the cover plate and the horizontal member side plate from the cover plate in the direction of the horizontal member and is inserted into the horizontal member;
Reinforced structure of wooden building with A reinforcing structure of a wooden building having at least two pillars and a horizontal member whose horizontal plane abuts against end faces of the two pillars,
A joining tool having a column-side plate portion and a horizontal member-side plate portion that are orthogonal to each other and have an L-shaped cross section, wherein the column-side plate portion is disposed and fixed facing a side surface of the column, and the horizontal member-side plate A joint that is disposed and fixed to be opposed to the horizontal surface of the horizontal member;
Plywood fixed to the two pillars;
With
The plywood is a reinforcing structure for a wooden building that is arranged such that an opening is formed between the plywood and the horizontal member. A reinforcing structure for a wooden building having at least two pillars, a base for supporting the two pillars, and a trunk difference supported by a horizontal plane in contact with an upper end surface of the two pillars,
A joining tool having a column-side plate portion and a horizontal member-side plate portion that are orthogonal to each other and have an L-shaped cross section, wherein the column-side plate portion is disposed and fixed facing a side surface of the column, and the horizontal member-side plate A joint that is disposed opposite to the horizontal surface of the trunk difference and fixed;
A joining tool having a column-side plate portion and a horizontal member-side plate portion that are orthogonal to each other and have an L-shaped cross section, wherein the column-side plate portion is disposed and fixed facing a side surface of the column, and the horizontal member-side plate A connector that is disposed and fixed opposite to the horizontal surface of the base;
Reinforcing structure of a wooden building provided with each of the two pillars. A reinforcing structure for a wooden building having at least two pillars, a base for supporting the two pillars, and a trunk difference supported by a horizontal plane in contact with an upper end surface of the two pillars,
A joining tool having a column-side plate portion and a horizontal member-side plate portion that are orthogonal to each other and have an L-shaped cross section, wherein the column-side plate portion is disposed and fixed facing a side surface of the column, and the horizontal member-side plate A joint that is disposed opposite to the horizontal surface of the trunk difference and fixed;
A hole-down hardware that is fixed to the pillar and through which a bolt inserted into the base is inserted,
Reinforcing structure of a wooden building provided with each of the two pillars.   The reinforcing structure for a wooden building according to any one of claims 4 to 8, wherein the horizontal member side plate portion is provided with a notch on the side opposite to the column side plate portion. A reinforcing member for reinforcing a wooden building having a pillar and a horizontal member whose horizontal plane abuts on an end face of the pillar,
A column-side plate portion and a horizontal member-side plate portion that are orthogonal to each other and form an L-shaped cross section,
The horizontal member side plate portion is
A plurality of holes for inserting screws or nails;
A protrusion that is formed by punching out the horizontal member side plate portion and protrudes outside the L shape;
A joint for reinforcing wooden structures.

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