Structure and diagonal brace material installation method

Abstract

To provide a structure and a diagonal brace material installation method which prevent exposure of a hardware where diagonal brace materials are installed as much as possible, and have less restriction of a construction method.SOLUTION: Hardware storage groove parts 4a and 4a' and hardware storage groove parts 2a and 3a are previously formed on the side of column materials 4 and 4' and the side of a sill 2 and a beam material 3 as horizontal members, and are fixed by a bolt 17a, a nut 17b or the like so as to prevent protrusion of a long-sized U-shaped hardware 11 or a short-sized U-shaped hardware 12, and a diagonal brace material 5 is installed by fixing a plate-like hardware 13 for a diagonal brace material having plate-like hardware side small-sized pin holes 13b and 13c and a plate-like hardware side large-sized pin hole 13a to U-shaped hardware side small-sized pin holes 11b1 and 11b1 of a pair of side plate parts 11b and 11b of the long-sized U-shaped hardware 11 and U-shaped hardware side small-sized pin holes 12b1 and 12b1 of the pair of side plate parts 12b and 12b of the short-sized U-shaped hardware 12 by a small-sized drift pin 15 and a large-sized drift pin 16.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a structure in which braces are provided between two diagonal corners in a rectangular space surrounded by left and right pillars and upper and lower cross members, and a method for installing braces. [Background technology]

[0002] Conventionally, in the frame construction method for a typical wooden house, a base is placed on the foundation, columns such as through-pillars and partitions are erected on this, horizontal members such as girders, beams and girder cross members are placed on top of these, and further diagonal bracing members are placed between the columns for reinforcement. For example, a method has been proposed in which a plate material has through-holes for joining with bolts or the like, or through-holes for fixing to the sides of the columns, beams, foundations, etc., on one side of which a through-hole is provided for fixing to the front of the columns, beams, foundations, etc., and a pressure-receiving member formed in a shape that fits the shape of the fixed part to the columns, beams, foundations, etc. so that no gaps occur, and a method of installing diagonal bracing members is used (see, for example, Patent Document 1).

[0003] In addition, a method of installing diagonal braces has been proposed in which slits for inserting plate-shaped metal fittings are formed in each of the cross members, column members and diagonal braces such as a foundation, and these three members are combined to form a thin rectangular space where the slits for inserting the plate-shaped metal fittings are connected, and a plate-shaped composite connecting fitting is embedded in this rectangular space in an inserted state, and drift pins (called draft pins in Patent Document 2) are driven through the composite connecting fittings from the sides of the foundation, column members and diagonal braces to secure the fittings to the foundation, column members and diagonal braces (see, for example, Patent Document 2). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2000-273953 A [Patent Document 2] Japanese Patent Application Publication No. 9-287221 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the method of installing diagonal braces disclosed in the above-mentioned Patent Document 1, the metal fittings (in Patent Document 1, external receiving members 15 for diagonal braces, internal receiving members 16, and connecting members 17) that secure the diagonal braces to pillars and cross members are exposed on the outside of the diagonal braces, etc., so when a so-called "exposed structure" is adopted in which the diagonal braces, etc. are exposed rather than hidden, the metal fittings are also exposed, which poses a problem in terms of design.

[0006] In addition, in the diagonal brace installation method disclosed in the above-mentioned Patent Document 2, a thin rectangular space is formed by connecting slits for inserting plate-like metal fittings provided on cross members such as a foundation, column members and diagonal braces, and a plate-like composite connecting fitting is inserted into this rectangular space and drift pins are driven into the sides of the foundation, column members and diagonal braces to fix the diagonal braces, etc.; therefore, the composite connecting fitting, which is a metal member, is contained in the rectangular space formed by the multiple slits for inserting plate-like metal fittings and can be prevented from being exposed. However, if the diagonal brace is installed at the same time as the composite connecting fitting is installed, or if the composite connecting fitting is fixed to the foundation first, the composite connecting fitting will protrude, so the slits for inserting plate-like metal fittings of the diagonal brace must be fitted in the wall surface direction, such as upwards, which limits the construction method.

[0007] Furthermore, in the method of installing diagonal braces disclosed in the above-mentioned Patent Document 2, the plate-shaped composite connecting fittings on the sill and column materials are fixed by drift pins driven into through holes provided in the composite connecting fittings and the foundation and column materials. Therefore, if an earthquake or other event occurs and a large load is transmitted to the foundation and column materials through the diagonal braces and composite connecting fittings, there are concerns about strength problems, such as the drift pins bending or the through holes into which the drift pins are driven cracking.

[0008] Therefore, the present invention has been made with attention to such problems, and aims to provide a structure and a method of installing diagonal braces in which the metal fittings that secure the diagonal braces are not exposed as much as possible, there are few restrictions on the construction method, and the strength can be improved. [Means for solving the problem]

[0009] In order to solve the problem, the structure according to the present invention has a back plate portion and a pair of side plate portions extending from both sides of the back plate portion, the back plate portion being provided with a U-shaped metal fitting side bolt hole into which a bolt shaft portion for fixing to a pillar or a cross member is inserted, while the pair of side plate portions are provided with a U-shaped metal fitting side first linear fastener hole into which a first linear fastener penetrating the pillar or cross member is inserted, and the U-shaped metal fitting fixed to the pillar material and the U-shaped metal fitting fixed to the cross member are passed through the U-shaped metal fitting side first linear fastener hole, respectively. A structure in which a diagonal brace is provided between two inside corners on a diagonal line in a rectangular space surrounded by left and right pillars and upper and lower cross members, using a plate-shaped metal for a diagonal brace, the plate-shaped metal having a first linear fastener hole on the plate-shaped metal side through which a first linear fastener is inserted and a second linear fastener hole on the plate-shaped metal side through which a second linear fastener penetrating the diagonal brace is inserted, the structure in which a diagonal brace is provided between two inside corners on a diagonal line in a rectangular space surrounded by left and right pillars and upper and lower cross members ... A column-side metal fitting accommodating groove is provided with a depth that allows the U-shaped metal fitting to be accommodated without protruding from the side surface of the column facing the rectangular space, and the U-shaped metal fitting is fixed to the column-side metal fitting accommodating groove by a bolt and a nut that pass through the U-shaped metal fitting side bolt hole of the U-shaped metal fitting and penetrate the column, and the cross member is provided with a cross member-side first linear fastener hole through which the first linear fastener passes, and a column-side metal fitting accommodating groove is provided with a depth that allows the U-shaped metal fitting to be accommodated without protruding from the side surface of the cross member facing the rectangular space, and the U-shaped metal fitting is fixed to the column-side metal fitting accommodating groove by a bolt and a nut that pass through the U-shaped metal fitting side bolt hole of the U-shaped metal fitting and penetrate the column, and the cross member is provided with a cross member-side first linear fastener hole through which the first linear fastener passes, and the U-shaped metal is fixed by a bolt and nut that pass through the U-shaped metal bolt hole of the diagonal brace and penetrate the cross member, the diagonal brace has a plate metal insertion slit into which the diagonal brace plate metal is inserted and a diagonal brace side second linear fastener hole through which the second linear fastener passes, the plate metal for the diagonal brace is inserted into the plate metal insertion slit and the diagonal brace plate metal is fixed by the second linear fastener that passes through the plate metal side second linear fastener hole and the diagonal brace side second linear fastener hole,The brace is installed by passing the first linear fastener through the plate-shaped metal plate metal for the brace, the U-shaped metal plate first linear fastener hole of the U-shaped metal plate fixed to the column-side metal plate receiving groove, and the column-side first linear fastener hole of the column, and also passing the first linear fastener through the plate-shaped metal plate metal for the brace, the U-shaped metal plate first linear fastener hole of the U-shaped metal plate fixed to the column-side metal plate receiving groove, and the column-side first linear fastener hole of the column. In addition, in the method for installing a diagonal brace according to the present invention, a U-shaped metal fitting has a back plate portion and a pair of side plate portions extending from both sides of the back plate portion, the back plate portion being provided with a U-shaped metal fitting side bolt hole into which a bolt shaft portion for fixing to a column or cross member is inserted, while the pair of side plate portions are provided with a U-shaped metal fitting side first linear fastener hole into which a first linear fastener penetrating the column or cross member is inserted, and the first linear fastener is passed through the U-shaped metal fitting side first linear fastener hole of each of the U-shaped metal fitting fixed to the column material and the U-shaped metal fitting fixed to the cross member. A method for installing diagonal braces between two diagonally opposite corners in a rectangular space surrounded by left and right pillars and upper and lower cross members, using a plate-shaped metal for diagonal braces, the plate-shaped metal having a first linear fastener hole on the plate-shaped metal side into which a fixing tool is inserted and a second linear fastener hole on the plate-shaped metal side into which a second linear fastener penetrating the diagonal brace is inserted, the method comprising the steps of: providing a column-side metal receiving groove portion on the column side at a depth such that the U-shaped metal can be received without protruding from a side surface of the column facing the rectangular space at the lower receiving corner where the diagonal brace is to be installed; The U-shaped metal is fixed by the U-shaped metal bolt hole of the U-shaped metal provided in the column side metal receiving groove and the bolt and nut penetrating the column, while a cross member side metal receiving groove is provided on the lower cross member side to a depth at which the U-shaped metal is received without protruding from the side of the cross member facing the rectangular space, and the U-shaped metal is fixed by the U-shaped metal bolt hole of the U-shaped metal provided in the cross member side metal receiving groove and the bolt and nut penetrating the cross member, and the plate metal of the brace material is fixed. the first linear fastener is passed through the first linear fastener hole of the plate metal for diagonal brace, the first linear fastener hole of the U-shaped metal fixed to the column side metal fitting accommodating groove portion, and the first linear fastener hole of the column, and the first linear fastener hole of the plate metal for diagonal brace, the first linear fastener hole of the U-shaped metal fixed to the column side metal fitting accommodating groove portion, and the first linear fastener hole of the column, thereby fixing the plate metal for diagonal brace, and at the upper inside corner portion where the diagonal brace is installed,A column-side metal fitting groove is provided at a depth such that the U-shaped metal fitting is fitted without protruding from the side surface of the column facing the rectangular space, and the U-shaped metal fitting is fixed by the U-shaped metal fitting bolt hole provided in the column-side metal fitting groove and a bolt and nut passing through the column, and the plate-shaped metal fitting on the lower side of the diagonal brace is provided with a plate-shaped metal fitting insertion slit at both ends for inserting the plate-shaped metal fitting for the diagonal brace and a plate-shaped metal fitting side second linear fastener hole into which the second linear fastener is inserted. The plate metal for the diagonal brace fixed to the lower cross member and the column member is inserted into the insertion slit, the second linear fastener is passed through the second linear fastener hole on the plate metal for the diagonal brace and the second linear fastener hole on the plate metal for the diagonal brace to fix the lower end of the diagonal brace to the lower corner, the plate metal for the diagonal brace is inserted into the plate metal insertion slit on the upper side of the diagonal brace and in alignment with the pair of side plate portions of the U-shaped metal fixed to the upper side of the other column member, and The first linear fastener is passed through the first linear fastener hole on the U-shaped metal fitting, the first linear fastener hole on the plate fitting side of the diagonal brace plate fitting, and the upper side of the other pillar material, and the second linear fastener is passed through the second linear fastener hole on the plate fitting side of the diagonal brace plate fitting and the second linear fastener hole on the plate fitting side of the diagonal brace plate fitting to fix the upper end of the diagonal brace to the upper side of the other pillar material, and a metal fitting accommodation groove portion is provided on the lower surface of ... The upper cross member to which the U-shaped metal fitting is fixed by the bolt and nut passing through the bolt hole on the U-shaped metal fitting side is lowered toward the upper end of the diagonal brace, and the upper end of the diagonal brace and the upper cross member are fixed by passing the first linear fastener through the first linear fastener hole on the plate metal fitting side of the diagonal brace plate metal fitting protruding from the upper end of the diagonal brace, the first linear fastener hole on the U-shaped metal fitting side of the pair of side plate portions of the U-shaped metal fitting, and the first linear fastener hole on the cross member side of the upper cross member. In another method for installing a diagonal brace according to the present invention, a U-shaped metal fitting has a back plate portion and a pair of side plate portions extending from both sides of the back plate portion, the back plate portion being provided with a U-shaped metal fitting side bolt hole into which a shank of a bolt for fixing to a column or a cross member is inserted, while the pair of side plate portions are provided with a U-shaped metal fitting side first linear fastener hole into which a first linear fastener penetrating the column or cross member is inserted, and the U-shaped metal fitting fixed to the column material and the U-shaped metal fitting fixed to the cross member are passed through the U-shaped metal fitting side first linear fastener hole. A method for installing diagonal braces between two diagonally opposite corners in a rectangular space surrounded by left and right pillars and upper and lower cross members, using a plate-shaped metal for diagonal braces, the plate-shaped metal having a first linear fastener hole on the plate-shaped metal side into which a first linear fastener is inserted and a second linear fastener hole on the plate-shaped metal side into which a second linear fastener penetrating the diagonal brace is inserted, the method comprising the steps of: (a) installing a diagonal brace between two diagonally opposite corners in a rectangular space surrounded by left and right pillars and upper and lower cross members; and (b) installing a diagonal brace between two diagonally opposite corners in a rectangular space surrounded by left and right pillars and upper and lower cross members, the method comprising the steps of: (a) installing a diagonal brace between two diagonally opposite corners in a rectangular space surrounded by a first linear fastener hole on the plate-shaped metal side into which a first linear fastener is inserted and a second linear fastener hole on the plate-shaped metal side into which a second linear fastener penetrating the diagonal brace; The U-shaped metal is fixed by the U-shaped metal bolt hole provided in the metal receiving groove and the bolt and nut passing through the pillar or cross member. Meanwhile, the cross member or column side of the brace plate metal is extended in the longitudinal direction of the cross member or column at a depth where the U-shaped metal is accommodated without protruding from the side of the cross member or column facing the rectangular space by more than the horizontal length of the cross member or column, and the brace plate metal is extended in the longitudinal direction of the cross member or column at a depth where the U-shaped metal is accommodated without protruding from the side of the cross member or column facing the rectangular space. After placement, a metal fitting insertion groove is provided in the plate fitting insertion slit of the diagonal brace material for inserting the plate fitting for the diagonal brace material, and the U-shaped metal fitting is fixed by the U-shaped metal fitting side bolt hole of the U-shaped metal fitting provided in the metal fitting accommodation groove and the bolt and nut that pass through the cross member or column member, and a diagonal brace material having a plate fitting insertion slit for inserting the plate fitting for the diagonal brace material at both ends and a plate fitting side second linear fastener hole into which the second linear fastener is inserted is inserted between the two inside corner portions from the out-of-plane direction of the rectangular space, and then,The plate metal for the diagonal brace is inserted into the metal insertion groove provided in the cross member or column member of each of the two inside corner portions and slid into the metal housing groove portion to move the plate metal for the diagonal brace into the plate metal insertion slit of the diagonal brace, and the first linear fastener hole of the plate metal for the diagonal brace is aligned with the first linear fastener hole of the U-shaped metal fixed to the column or cross member in a pair of side plate portions of the U-shaped metal fixed to the column or cross member to pass through the first linear fastener, and the second linear fastener hole of the plate metal for the diagonal brace is aligned with the second linear fastener hole of the plate metal for the diagonal brace in the pair of side plate portions of the U-shaped metal fixed to the column or cross member to pass through the second linear fastener, thereby fixing the diagonal brace at the two inside corner portions. Effect of the Invention

[0010] According to the present invention, a column side hardware accommodating groove portion and a cross member side hardware accommodating groove portion are formed in advance on the column side and the cross member side, respectively, to fix the U-shaped metal fitting so that it does not protrude from the side facing the rectangular space of the column and cross member, and the first linear fastener hole on the U-shaped metal fitting side of the pair of side plate portions of the U-shaped metal fitting is aligned with the first linear fastener hole on the plate metal fitting side of the diagonal brace inserted into the plate metal fitting insertion slit of the diagonal brace material, and the first linear fastener is inserted to connect the U-shaped metal fittings on the column side and the cross member side to the plate metal fittings for the diagonal brace material on the diagonal brace material side, thereby fixing the diagonal brace material to the inside corner portion of the column and cross member. Therefore, the diagonal brace can be installed without exposing the U-shaped metal fittings and the plate-shaped metal fittings for the diagonal brace to the outside as much as possible. In addition, the plate-shaped metal for the diagonal brace inserted into the slit for inserting the plate-shaped metal of the diagonal brace is configured to be connected via the first linear fastener to the U-shaped metal fixed by a bolt and nut that pass through the column or cross member.This makes it possible for the stress related to the diagonal brace to be transmitted to the entire column or cross member via the plate-shaped metal for the diagonal brace and the U-shaped metal, thereby improving strength. In addition, since the metal fittings that secure the diagonal braces are composed of U-shaped metal fittings that are secured to the column and cross members, and plate-shaped metal fittings for the diagonal braces that are inserted into the slits for inserting plate-shaped metal fittings in the diagonal braces and secured to the U-shaped metal fittings, it is possible to insert them from an out-of-plane direction (outside the wall surface), such as horizontally, into the rectangular space formed by the column and cross members, thereby reducing restrictions on construction methods. [Brief description of the drawings]

[0011] [Figure 1] FIG. 2 is an oblique view of a wooden portion of a structure according to an embodiment of the present invention, the structure having a beam-shaped construction using diagonal braces. [Diagram 2] FIG. 1 is a front view of a wooden portion of a structure according to an embodiment of the present invention, the wooden portion being constructed using a brace. [Diagram 3] 1A to 1C are a perspective view, a front view, and a right side view, respectively, of a long U-shaped metal fitting used in a structure according to an embodiment of the present invention. [Figure 4] 1A to 1C are a perspective view, a front view, and a right side view, respectively, of a short U-shaped metal fitting used in a structure according to an embodiment of the present invention. [Diagram 5] 1A to 1C are a perspective view, a front view, and a right side view, respectively, of a metal plate for a diagonal brace used in a structure according to an embodiment of the present invention. [Figure 6] 1A to 1C are a perspective view, a front view, and a right side view, respectively, of a plate metal for a cross member used in a beam-type specification of a structure according to an embodiment of the present invention. [Figure 7] FIG. 3 is an enlarged view of a main part of part A in FIG. 2. [Figure 8] 3 is a perspective view showing the arrangement of the long and short U-shaped metal fittings, the plate-shaped metal fittings for diagonal bracing, the bolts, the small-diameter drift pins, and the large-diameter drift pins in the portion A in FIG. 2. FIG. [Figure 9] 3(a) to 3(c) are a plan view, a front view, and a right side view, respectively, showing the arrangement of the long and short U-shaped metal fittings, the plate-shaped metal fittings for diagonal bracing, the bolts, the small-diameter drift pins, and the large-diameter drift pins in part A in FIG. 2. [Figure 10] 3 is an enlarged view of a main part of part B in FIG. 2. [Figure 11] This is an oblique view showing the arrangement of long and short U-shaped metal fittings, plate-shaped metal fittings for diagonal braces, plate-shaped metal fittings for cross members, bolts, small diameter drift pins, and large diameter drift pins in part B in Figure 2. [Figure 12] 3(a) to 3(c) are a plan view, a front view, and a right side view, respectively, showing the arrangement of the long and short U-shaped metal fittings, the plate-shaped metal fittings for diagonal braces, the plate-shaped metal fittings for cross members, the bolts, the small-diameter drift pins, and the large-diameter drift pins in part B of FIG. [Figure 13] 1A and 1B are explanatory diagrams showing a method of installing diagonal braces (beam-shaped specification) according to an embodiment of the present invention, the explanatory diagram showing the state in which the diagonal braces are lowered between the pillars, and the explanatory diagram showing the state in which a diagonal brace plate metal is inserted into the slit at the upper end of the diagonal brace after the diagonal brace has been lowered between the pillars. [Figure 14] 1A and 1B are explanatory diagrams showing a method for installing a diagonal brace (beam-type specification) according to an embodiment of the present invention, each of which shows the state in which a diagonal brace plate metal fitting is inserted into the slit at the upper end of the diagonal brace and then the beam is installed. [Figure 15] FIG. 1 is a front view of a wooden portion of a structure according to an embodiment of the present invention, the wooden portion being of a column-type construction using diagonal braces. [Figure 16] 1A to 1C are a perspective view, a front view, and a right side view, respectively, of a plate metal for a cross member used in a column-supporting specification of a structure according to an embodiment of the present invention. [Figure 17] 16 is an enlarged view of a main part of part D in FIG. 15. [Figure 18] FIG. 1 is an explanatory diagram showing a method for installing a diagonal brace (column-to-column specification) according to an embodiment of the present invention, illustrating the state before the diagonal brace is inserted from the out-of-plane (out-of-wall) direction into a rectangular space surrounded by a foundation, a beam, and a pair of columns. [Figure 19] 19(a) and (b) are a plan view and a perspective view, respectively, of a portion C' in FIG. 18. [Figure 20] 19(a) and (b) are a bottom (lower) view and a perspective view, respectively, of portion D' in FIG. 18. [Figure 21]1A and 1B are explanatory diagrams showing a method for installing a diagonal brace (column-overhanging specification) according to an embodiment of the present invention, each of which shows the state when inserting a diagonal brace plate metal fitting at each end of a diagonal brace inserted in the out-of-plane (out-of-wall) direction into a rectangular space surrounded by a foundation, a beam, and a pair of columns, and the state after insertion. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, the wooden part of the structure 1 according to the embodiment of the present invention and the method of installing the braces in the wooden part will be described in detail with reference to the attached drawings. Note that the embodiment described below, including the dimensions, is merely one example of the present invention, and the present invention is not limited to the embodiment described below, and can be modified as appropriate within the scope of the technical concept of the present invention.

[0013] <Metal fittings used to fix the braces in the structure 1 of the embodiment> FIG. 1 is a perspective view of a wooden portion of a structure 1 according to an embodiment of the present invention, which is constructed in a beam-type construction using diagonal braces, and FIG. 2 is a front view of the wooden portion.

[0014] As shown in Figures 1 and 2, in the wooden portion of the structure 1 of the embodiment, diagonal corners in a rectangular space surrounded by the left and right pillars 4, 4' and the upper and lower cross members, which are the foundation 2 and the beam 3, are provided with diagonal braces 5 using long U-shaped metal fittings 11, short U-shaped metal fittings 12, diagonal brace plate metal fittings 13, cross member plate metal fittings 14, small diameter drift pins 15 and large diameter drift pins 16 which are linear fasteners, bolts 17a, nuts 17b, washers 17c, etc.

[0015] (Long U-shaped metal fittings 11) 3(a)-(c), the long U-shaped metal fitting 11 is a U-shaped metal fitting having a back plate portion 11a and a pair of side plate portions 11b, 11b extending from both sides of the back plate portion 11a at 90 degrees, and the back plate portion 11a has eight U-shaped metal fitting side bolt holes 11a1 into which the shaft portion of the bolt 17a is inserted, while the pair of side plate portions 11b, 11b each has three U-shaped metal fitting side small diameter pin holes 11b1 into which the small diameter drift pin 15, which is the first linear fastener, is inserted, and one U-shaped metal fitting side small diameter pin retaining groove 11b2 into which the small diameter drift pin 15 is retained is provided above the U-shaped metal fitting side small diameter pin hole 11b1 in the drawing. In this embodiment, the long U-shaped metal fitting 11 is mainly fixed to the pillar material 4, 4'.

[0016] (Short U-shaped metal fittings 12) 4(a)-(c), the short U-shaped metal fitting 12 is a U-shaped metal fitting having a back plate portion 12a and a pair of side plate portions 12b, 12b extending from both sides of the back plate portion 12a at 90 degrees, and the back plate portion 12a has six U-shaped metal fitting side bolt holes 12a1 into which the shaft portion of the bolt 17a is inserted, while the pair of side plate portions 12b, 12b each has two U-shaped metal fitting side small diameter pin holes 12b1 into which the small diameter drift pin 15 is inserted, and one small diameter pin retaining groove 12b2 into which the small diameter drift pin 15 is retained is provided above the U-shaped metal fitting side small diameter pin hole 12b1 in the figure. In this embodiment, the short U-shaped metal fitting 12 is mainly fixed to the foundation 2 and the beam material 3, which are cross members.

[0017] (13) As shown in Figures 2, 7, 10, etc., the diagonal brace plate-shaped metal fitting 13 is inserted into the plate-shaped metal fitting insertion slits 5a, 5b of the diagonal brace material 5 and fixed by large-diameter drift pins 16, and is also connected by small-diameter drift pins 15 to a pair of side plate portions 11b, 11b of the long U-shaped metal fitting 11 fixed to the column material 4 and to a pair of side plate portions 12b, 12b of the short U-shaped metal fitting 12 fixed to the base 2 or beam material 3.

[0018] Therefore, as shown in Figures 5(a) to (c), the diagonal brace plate-shaped metal fitting 13 has a large diameter pin hole 13a on the plate-shaped metal fitting side into which the large diameter drift pin 16 is inserted, four small diameter pin holes 13b on the plate-shaped metal fitting side arranged in the long side direction (vertical direction in Figure 5) through which four small diameter drift pins 15 passed through the three small diameter pin holes 11b1 on the U-shaped metal fitting side and the small diameter pin retaining grooves 11b2 on the U-shaped metal fitting side of the pair of side plate portions 11b, 11b of the long U-shaped metal fitting 11 are inserted, and two small diameter pin holes 13c on the plate-shaped metal fitting side arranged in the short side direction (horizontal direction in Figure 5) through which two small diameter drift pins 15 passed through the two small diameter pin holes 12b1, 12b1 on each of the pair of side plate portions 12b, 12b of the short U-shaped metal fitting 12 are inserted.

[0019] In addition, the corners of the diagonal line of the diagonal brace plate metal 13 that are parallel to the longitudinal direction of the diagonal brace material 5 are cut off obliquely to form oblique sides 13d, 13d.

[0020] (14 Plate-shaped metal fittings for beams) The plate-shaped metal fitting 14 for cross members is a plate-shaped metal fitting that is inserted into the plate-shaped metal fitting insertion slit of the beam material 3 as shown in Figures 1, 2, 10, etc., and is a metal fitting that is connected to the beam material 3 and a pair of side plate portions 12b, 12b of a short U-shaped metal fitting 12 housed on the beam material 3' side perpendicular to the beam material 3 by a small diameter drift pin 15.

[0021] Therefore, as shown in Figures 6(a) to (c), the plate-shaped metal fitting 14 for the cross member has two small diameter pin holes 14a on the plate-shaped metal fitting side through which small diameter drift pins 15 penetrating the beam material 3 are passed, and two small diameter pin holes 12b1 on the U-shaped metal fitting side of a pair of side plate portions 12b, 12b of the short U-shaped metal fitting 12 housed on the beam material 3' side perpendicular to the beam material 3 and three small diameter pin holes 14b on the plate-shaped metal fitting side through which three small diameter drift pins 15 passing through the U-shaped metal fitting side small diameter pin retaining grooves 12b2 are passed.

[0022] The plate metal fittings 14 for cross members are used in the case of beam-type specifications, as shown in Figures 1 and 2, etc.

[0023] (Small diameter drift pin 15) The small diameter drift pins 15 are passed through the small diameter pin holes 11b1, 11b1 on the U-shaped metal fitting side of the side plate portions 11b, 11b of the long U-shaped metal fitting 11, the small diameter pin holes 12b1, 12b1 on the U-shaped metal fitting side of the side plate portions 12b, 12b of the short U-shaped metal fitting 12, and further through the small diameter pin holes 13b, 13c on the plate metal fitting side of the diagonal brace plate metal fitting 13, to connect the metal fittings to each other and to connect the metal fittings to the foundation 2, beam materials 3, column materials 4, and diagonal brace materials 5.

[0024] (Large diameter drift pin 16) The large diameter drift pin 16 has an outer diameter larger than the outer diameter of the small diameter drift pin 15, and is passed through the large diameter pin holes 5a1, 5b1 on the diagonal brace side at both ends of the diagonal brace 5 and through the large diameter pin hole 13a on the plate-shaped metal fitting 13 for diagonal bracing (see Figures 5(a) and (b)), thereby pin-joining the diagonal brace 5 to the plate-shaped metal fitting 13 for diagonal bracing.

[0025] (Part A in Figure 2 (lower corner)) 7 is an enlarged view of part A in FIG. 2, FIG. 8 is an oblique view showing the arrangement of the long U-shaped metal fittings 11, the short U-shaped metal fittings 12, and the diagonal brace plate-shaped metal fittings 13 in part A in FIG. 2, and FIGS. 9(a) to (c) are a plan view, a front view, and a right side view showing the arrangement of the long U-shaped metal fittings 11, the short U-shaped metal fittings 12, the diagonal brace plate-shaped metal fittings 13, the bolts 17a, the small diameter drift pins 15, and the large diameter drift pins 16 in part A in FIG. 2.

[0026] At the inside corner between the base 2 and the pillar 4, which is part A in Figure 2, as shown in Figure 7, the pillar 4 has four small diameter pin holes 4a1 in a row vertically, through which the small diameter drift pins 15 pass, and a pillar side metal fitting accommodation groove 4a is provided which is deep enough so that the long U-shaped metal fitting 11 can be accommodated without protruding from the side of the pillar 4 facing the rectangular space.

[0027] The long U-shaped metal fitting 11 is fixed to the pillar side metal fitting groove 4a by bolts 17a, nuts 17b and washers 17c that pass through the U-shaped metal fitting side bolt holes 11a1 of the back plate 11a of the long U-shaped metal fitting 11 and penetrate the pillar 4. On the opposite side of the pillar side metal fitting groove 4a, four bolt head fitting grooves 4b are formed to accommodate the heads of the bolts 17a and washers 17c (see Figures 8, 9, etc.). The bolt head fitting grooves 4b are circular grooves in the shape of the washers 17c (see Figures 8, 9, etc.).

[0028] On the other hand, the base 2, which is the cross member, is provided with a base-side hardware accommodating groove 2a of a depth that allows the short U-shaped metal fitting 12 to be accommodated without protruding from the side facing the rectangular space in the base 2, as shown in Figures 1, 2, 7, etc., and a base-side small-diameter pin hole 2a1 is provided through which a small-diameter drift pin 15, which is the first linear fixing device, passes through the base-side hardware accommodating groove 2a.The short U-shaped metal fitting 12 is fixed to the base-side hardware accommodating groove 2a by the U-shaped metal fitting side bolt hole 12a1 of the back plate portion 12a of the short U-shaped metal fitting 12 and by a bolt 17a and a nut 17b that pass through the base 2. In the case of cross members such as the base 2, the short U-shaped metal fittings 12 are fixed in place using other short U-shaped metal fittings 12, without using washers 17c, and are fixed by sandwiching the pair of short U-shaped metal fittings 12, 12 from both sides of the base 2 with bolts 17a and nuts 17b. Therefore, the opposite side of the base 2 is also provided with a base-side metal fitting accommodation groove 2a in which the short U-shaped metal fittings 12 are accommodated so as not to protrude, as shown in Figure 7 etc.

[0029] At both ends of the diagonal brace 5, slits 5a, 5b are formed for inserting plate-shaped metal fittings 13 for the diagonal brace as shown in FIG. 2 etc., and a plate-shaped metal fitting 13 for the diagonal brace is inserted into each of the plate-shaped metal fitting insertion slits 5a, 5b, and the plate-shaped metal fitting 13 for the diagonal brace is fixed to the diagonal brace 5 by a large diameter drift pin 16 which penetrates the large diameter pin hole 13a on the plate-shaped metal fitting side and the large diameter pin holes 5a1, 5b1 on the diagonal brace side of the diagonal brace 5.

[0030] Then, a small diameter drift pin 15 is passed through the small diameter pin hole 13b (see Figure 5) on the plate-shaped metal fitting side of the plate-shaped metal fitting 13 for the diagonal brace, the small diameter pin hole 11b1 (see Figure 3) and the small diameter pin hooking groove 11b2 (see Figure 3) on the U-shaped metal fitting side of the long U-shaped metal fitting 11 fixed to the pillar material 4, and the small diameter pin hole 4a1 (see Figure 7) on the pillar material 4, and also through the small diameter pin hole 13c (see Figure 5) on the plate-shaped metal fitting side of the plate-shaped metal fitting 13 for the diagonal brace, the small diameter pin hole 12b1 (see Figure 4) and the small diameter pin hooking groove 12b2 (see Figure 4) on the U-shaped metal fitting side of the short U-shaped metal fitting 12 fixed to the base 2, and the small diameter pin hole 2a1 on the base side of the base 2 (see Figure 7). ) by passing a small diameter drift pin 15 through the long U-shaped metal fittings 11 and the short U-shaped metal fittings 12, the plate-shaped metal fittings 13 for the diagonal brace are connected to the long U-shaped metal fittings 11 and the short U-shaped metal fittings 12, and the diagonal brace 5 is fixed to the inside corner of the column material 4 and the base 2.

[0031] (Part B in Figure 2 (upper corner)) 10 is an enlarged view of part B in FIG. 2, FIG. 11 is an oblique view showing the arrangement of the long U-shaped metal fittings 11, the short U-shaped metal fittings 12, the plate-shaped metal fittings 13 for diagonal braces, and the plate-shaped metal fittings 14 for cross members in part B in FIG. 2, and FIG. 12 is a plan view, a front view, and a right side view showing the arrangement of the long U-shaped metal fittings 11, the short U-shaped metal fittings 12, the plate-shaped metal fittings 13 for diagonal braces, the plate-shaped metal fittings 14 for cross members, the bolts 17a, the small diameter drift pins 15, and the large diameter drift pins 16 in part B in FIG. 2.

[0032] At the inside corner between the beam 3 and the column 4', which is part B in Figure 2, as shown in Figure 10, on the column 4' side, there is a column-side hardware accommodating groove 4a' of a depth that allows the long U-shaped metal fitting 11 to be accommodated without protruding from the side facing the rectangular space in the column 4', and a column-side small-diameter pin hole 4a1' through which a small-diameter drift pin 15 penetrates the column 4' through the column-side hardware accommodating groove 4a', and four circular bolt head accommodating grooves 4b' in which the heads of bolts 17a and washers 17c are accommodated are provided on the side opposite the column-side hardware accommodating groove 4a'.

[0033] On the other hand, the base 2 and beam 3, which are the cross members, are each provided with a base-side hardware accommodating groove 2a and a beam-side hardware accommodating groove 3a of a depth sufficient to accommodate the short U-shaped metal fitting 12 without it protruding, and a base-side small-diameter pin hole 2a1 through which a small-diameter drift pin 15 penetrates the base 2 via the base-side hardware accommodating groove 2a and a beam-side small-diameter pin hole 3a1 through which a small-diameter drift pin 15 penetrates the beam 3 via the beam-side hardware accommodating groove 3a. The short U-shaped metal fittings 12, 12 are fixed to the base-side hardware accommodating groove 2a and the beam-side hardware accommodating groove 3a by bolts 17a and nuts 17b which penetrate the base 2 and the beam 3 via the U-shaped metal fitting bolt holes 12a1 of the back plate portion 12a.

[0034] The upper end of the diagonal brace 5 is formed with a slit 5b for inserting a plate-shaped metal fitting into which a plate-shaped metal fitting 13 for a diagonal brace is inserted, and a large diameter pin hole 5b1 on the diagonal brace side which penetrates the diagonal brace 5 via the slit 5b for inserting the plate-shaped metal fitting. The plate-shaped metal fitting 13 for a diagonal brace is inserted into the slit 5b for inserting the plate-shaped metal fitting, and the large diameter drift pin 16 is inserted through the slit 5b by aligning the large diameter pin hole 5b1 on the diagonal brace side of the diagonal brace 5 with the large diameter pin hole 13a on the plate-shaped metal fitting 13 for a diagonal brace, thereby fixing the diagonal brace 5 to the plate-shaped metal fitting 13 for a diagonal brace.

[0035] In addition, a small diameter drift pin 15 is passed through the plate-shaped metal plate 13 for the diagonal brace side small diameter pin hole 13b (see FIG. 5), the U-shaped metal plate side small diameter pin hole 11b1 and the U-shaped metal plate side small diameter pin retaining groove 11b2 of the long U-shaped metal plate 11 fixed to the pillar material 4', and the pillar material side small diameter pin hole 4a1' of the pillar material 4'. By passing a small diameter drift pin 15 through the small diameter pin hole 13c (see Figure 5), the small diameter pin hole 12b1 on the U-shaped metal fitting side of the short U-shaped metal fitting 12 fixed to the beam material 3, and the small diameter pin hole 3a1 on the beam material side of the beam material 3, the plate-shaped metal fitting 13 for diagonal brace is connected to the long U-shaped metal fitting 11 and the short U-shaped metal fitting 12, and the diagonal brace 5 is fixed to the corner portion of the column material 4' and the beam material 3.

[0036] In addition, in Figures 1, 2 and 10, the wooden portion using the diagonal braces 5 in the structure 1 of the embodiment of the present invention is of a beam-supporting specification, so that a beam 3' is provided at the upper end of the column 4' in the direction from the front to the back of the page, i.e., in a direction perpendicular to the beam 3, and it is necessary to fix the beam 3 to the beam 3'.

[0037] Therefore, as shown in Figure 10, in order to fix the beam 3 to the beam 3', a slit for plate-shaped metal is provided at the right end of the beam 3 into which the pair of side surfaces 12b, 12b of the short U-shaped metal 12 housed in the side surface of the beam 3' and the plate-shaped metal 14 for the cross member are inserted, and a beam-side small-diameter pin hole 3b1 is formed through which a small-diameter drift pin 15 passes through two small-diameter pin holes 14a on the plate-shaped metal 14 for the cross member and three small-diameter pin holes 14b on the plate-shaped metal 14 (see Figure 6). On the other hand, the short U-shaped metal 12 is fixed to the beam 3' by a bolt 17a, a nut 17b and a washer 17c so that a pair of side surfaces 12b, 12b protrude toward the beam 3 side, and the beam 3 to the beam 3' are fixed by this short U-shaped metal 12, the plate-shaped metal 14 for the cross member, the small-diameter drift pin 15, etc. In addition, the beam 3' is provided with a bolt head receiving groove 3b' in which the head of the bolt 17a and the washer 17c are received in order to fix the short U-shaped metal fitting 12 with a bolt 17a, a nut 17b and a washer 17c.

[0038] <Method of installing braces in structure 1 of embodiment (beam joint specification)> Next, a method of installing diagonal braces in the wooden portion of the structure 1 of the embodiment shown in Figures 1 and 2 using the long U-shaped metal fittings 11, short U-shaped metal fittings 12, diagonal brace plate fittings 13, cross member plate fittings 14, drift pins 15, 16, bolts 17a and nuts 17b, washers 17c, etc., constructed as described above will be described. The method of assembling timber shown in Figures 1 and 2 is called the beam-first specification, and here the diagonal braces 5 are installed by a diagonal brace installation method in which the diagonal braces 5 are dropped from above.

[0039] First, as shown in Figure 13(a), pillars 4, 4' are erected on foundation 2 at a predetermined distance, and in order to install a diagonal brace 5 from the lower inside corner where the lower end of the pillar 4 on the left side of Figure 13(a) is joined to the foundation 2 to the upper inside corner where the upper end of the pillar 4' on the right side of Figure 2 is joined to the beam 3, a pair of diagonal brace plate-like metal members 13 are fixed by small diameter drift pins 15 to the lower inside corner where the lower end of the pillar 4 on the left side of Figure 4 is joined to the foundation 2, as shown in Figures 7 to 9, etc.

[0040] On the other hand, before the diagonal brace 5 is dropped from above, a long U-shaped metal fitting 11 is fixed to the upper end of the right-side pillar 4' by a bolt 17a, a nut 17b, and a washer 17c as shown in Figure 13(a).

[0041] In this case, since the beam 3 has not yet been installed at the upper ends of the columns 4, 4', the diagonal brace 5 having slits 5a, 5b for inserting plate-shaped metal fittings and large-diameter pin holes 5a1, 5b1 on the diagonal brace side at both ends is dropped between the columns 4, 4' as shown in Figure 13(a).

[0042] Then, as shown in Figure 13(b), the diagonal brace 5 is dropped from above and the two diagonal brace plate metal fittings 13 fixed to the inside corner between the lower end of the left-hand column 4 and the base 2 are inserted into the two plate metal fitting insertion slits 5a at the lower end of the diagonal brace 5, and as shown in Figures 7 to 9, a large diameter drift pin 16 is passed through the large diameter pin hole 5a1 on the diagonal brace side at the lower end of the diagonal brace 5 and the large diameter pin hole 13a on the plate metal fitting side of the diagonal brace 13 to connect the lower end of the diagonal brace 5 and the diagonal brace plate metal fitting 13.

[0043] On the other hand, in accordance with the two plate-shaped metal fitting insertion slits 5b formed at the upper end of the diagonal brace 5 and the pair of side plate portions 11b, 11b of the long U-shaped metal fitting 11 fixed to the upper end of the right-side column 4', the diagonal brace plate-shaped metal fittings 13 are inserted into each of the two plate-shaped metal fitting insertion slits 5b, and the large diameter drift pins 16 are passed through the large diameter pin holes 5b1 on the diagonal brace side of the diagonal brace 5 to insert the large diameter pins of the two diagonal brace plate-shaped metal fittings 13. The hole 13a is also penetrated, and as shown in Figure 14(a), a small diameter drift pin 15 is passed through three small diameter pin holes 11b1 and small diameter pin retaining grooves 11b2 (see Figure 3) on the U-shaped metal fitting side of the pair of side plate portions 11b, 11b of the long U-shaped metal fitting 11 and a small diameter pin hole 13b (see Figure 5) on the plate-shaped metal fitting side of the diagonal brace plate metal fitting 13 so as to penetrate the column material 4', thereby fixing the diagonal brace material 5 to the column material 4'.

[0044] Next, since this is a beam-top specification, as shown in Figure 14(a), a beam 3' which extends in the front-to-back direction of the page in Figure 14(a) and has a short U-shaped metal fitting 12 fixed to it is installed at the upper end of the column 4' on the right side, and as shown in Figure 14(b), a beam 3 which is parallel to the base 2 and perpendicular to the beam 3' is installed on top of the upper end of the column 4 on the left side and two diagonal brace plate metal fittings 13 fixed to the upper end of the diagonal brace 5, and the right end of the beam 3 is fixed by inserting a small diameter drift pin 15 into the short U-shaped metal fitting 12 of beam 3' and the two diagonal brace plate metal fittings 13 at the upper end of the diagonal brace 5.

[0045] For this reason, two plate-shaped metal fittings 14 for cross members are attached to the right end of the beam 3, and a short U-shaped metal fitting 12 is provided to connect to the diagonal brace 5. As shown in Figure 11, the right end of the beam 3 and the beam 3' are connected at the upper end of the column 4' via the two plate-shaped metal fittings 14 for cross members and a pair of side plates 12b, 12b of the short U-shaped metal fittings 12, while the right end of the beam 3 and the upper end of the diagonal brace 5 are connected via a pair of side plates 12b, 12b of the short U-shaped metal fitting 12 on the lower side of the right end of the beam 3 and two plate-shaped metal fittings 13 for diagonal braces on the diagonal brace 5 side, and the upper end of the diagonal brace 5 is fixed to the inside corner between the right end of the beam 3 and the upper end of the column 4'.

[0046] <Method of installing braces in structure 1 of embodiment (column bracing specification)> Next, a method of installing braces of column-type specifications in the structure 1 of the embodiment using the long U-shaped metal fittings 11, the short U-shaped metal fittings 12, the plate-shaped metal fittings 13 for diagonal braces, the plate-shaped metal fittings 14' for cross members, the drift pins 15, 16, the bolts 17a and nuts 17b, the washers 17c, etc., constructed as described above will be described.

[0047] FIG. 15 is a diagram showing a fixing structure of the brace 5 in the structure 1 according to the embodiment of the column-type construction. The fixing structure of the diagonal brace 5 in the structure 1 of the embodiment of the column-width specification shown in Figure 15 differs from the fixing structure of the diagonal brace 5 in the case of the beam-width specification shown in Figures 1 and 2, etc. in that it does not use the plate metal for cross members 14 shown in Figure 6, but uses a plate metal for cross members 14' shown in Figure 16 described later, which is wider than the plate metal for cross members 14.

[0048] In the fixing structure of the diagonal brace 5 in the structure 1 of the embodiment of the column-type specification shown in FIG. 15, the columns 4, 4" are erected at a predetermined distance from each other on the upper side of the base 2, and the beam 3 is fixed between the upper ends of the columns 4, 4" using long U-shaped metal fittings 11, short U-shaped metal fittings 12, plate-shaped metal fittings for cross members 14', small diameter drift pins 15, bolts 17a, nuts 17b, and washers 17c.

[0049] Here, in order to install the diagonal brace 5 from the lower inside corner where the lower end of the column 4 on the left side and the base 2 are joined to the upper inside corner where the upper end of the column 4" on the right side and the beam 3 are joined, in FIG. 15, the connection between the metal fittings at the lower inside corner where the lower end of the column 4 on the left side and the base 2, which is part C in FIG. 15, is joined is similar to the connection at part A of the beam-front specification shown in FIG. 2, but the length of the metal fitting insertion groove 2a' provided in the base 2 is longer than the length of the metal fitting insertion groove 2a provided in the beam-front specification foundation 2 shown in FIG. 2, for example, more than twice the longitudinal length of the metal fitting insertion groove 2a, so that the diagonal brace plate metal fitting 13 can be inserted later into the plate metal fitting insertion slit 5a of the diagonal brace 5 provided in this inside corner.

[0050] On the other hand, the upper end of the column 4" on the right side in Fig. 15 and the right end of the beam 3 are connected as shown in Fig. 17, which is an enlarged view of D part in Fig. 15, using a plate metal fitting 14' for cross members shown in Fig. 16 described later, which is connected to a short U-shaped metal fitting 12 fixed to the upper end of the column 4", to fix the upper end of the diagonal brace 5. Also, similar to the metal fitting insertion groove 2a' of the base 2, a metal fitting insertion groove 3a' longer than the metal fitting insertion groove 3a provided in the beam 3 with beam-width specifications shown in Fig. 2 is formed in advance, so that the plate metal fitting 13 for diagonal brace can be inserted later into the plate metal fitting insertion slit 5b of the diagonal brace 5 installed on the diagonal line.

[0051] 16(a) to (c) are a perspective view, a front view, and a right side view of a plate metal member 14' for a cross member used in the fixing structure of the diagonal brace member 5 in the structure 1 of the embodiment of the column-type specification shown in FIG.

[0052] As shown in Figure 15 and Figure 17, which is an enlarged view of part D in Figure 15, the plate-shaped metal fitting 14' for cross members is inserted into the plate-shaped metal fitting insertion slit at the right end of the beam member 3 and is connected by small-diameter drift pins 15 passed through five beam-side small-diameter pin holes 3b1 that pass through the beam member 3, three column-side small-diameter pin holes 4a1" that pass through the column member 4", and two U-shaped metal fitting side small-diameter pin holes 12b1 and U-shaped metal fitting side small-diameter pin retaining grooves 12b2 (see Figure 4) of a pair of side plate portions 12b, 12b of the short U-shaped metal fitting 12 fixed to the column member 4".

[0053] Therefore, as shown in Figures 16(a) to (c), the plate-shaped metal fitting 14' for the cross member has five small diameter pin holes 14a' on the plate-shaped metal fitting side through which small diameter drift pins 15 are passed via five small diameter pin holes 3b1 on the beam material 3 (see Figure 17), three small diameter pin holes 4a1'' on the column material 4'' are provided so as to penetrate the column material 4'', and three small diameter pin holes 14b' on the plate-shaped metal fitting side through which three small diameter drift pins 15 are passed which are passed through two small diameter pin holes 12b1 on the C-shaped metal fitting side and small diameter pin retaining grooves 12b2 (see Figure 4) on a pair of side plate portions 12b, 12b of the short C-shaped metal fitting 12 housed on the column material 4'' side.

[0054] Returning to the explanation of Figures 15 and 17, a hardware insertion groove 3a' that is longer than the hardware insertion groove 3a provided in the beam 3 with the beam-front specification shown in Figure 2 is provided on the underside of the right end of the beam 3 so that a diagonal brace plate-shaped hardware 13 can be inserted later, and the short U-shaped hardware 12 is fixed in the beam side hardware accommodation groove 3a' so that the pair of side plate portions 12b, 12b of the short U-shaped hardware 12 face downward and do not protrude.

[0055] On the other hand, a hardware accommodating groove 4a" is provided on the left side of the upper end of the column material 4" which is longer in the vertical direction than the hardware accommodating groove 4a' in the case of the beam-front specification shown in Figures 2, 10, etc., and a long U-shaped metal fitting 11 and a short U-shaped metal fitting 12 are provided in this hardware accommodating groove 4a" so that their side plate portions 11b, 12b face toward the rectangular space and do not protrude. In the hardware accommodating groove 4a", the long U-shaped metal fitting 11 is used to connect to the plate-shaped metal fitting 13 for the diagonal brace material, and the short U-shaped metal fitting 12 is used to connect to the plate-shaped metal fitting 14' for the cross member.

[0056] 15, similarly to the case of the upper recessed corner shown in FIG. 2, etc., the short U-shaped metal fitting 12 accommodated in the beam-side metal fitting accommodation groove 3a' on the lower surface of the right end of the beam 3 has two U-shaped metal fitting side small diameter pin holes 12b1 (see FIG. 4, etc.) on a pair of side surfaces 12b, 12b, and the diagonal brace plate metal fitting 13 inserted into the plate metal fitting insertion slit 5b of the diagonal brace 5 has two small diameter pin holes 13c (see FIG. 5). etc.), and through the small diameter pin holes 11b1 (see Figure 3, etc.) on the U-shaped metal fitting side of the pair of side plate portions 11b, 11b of the long U-shaped metal fitting 11 on the column material 4" side and through the four small diameter pin holes 13b (see Figure 5, etc.) on the plate-shaped metal fitting side of the diagonal brace plate-shaped metal fitting 13 provided on the diagonal brace material 5, to fix the upper end of the diagonal brace material 5 to the inside corner portion between the right end of the beam material 3 and the upper end of the column material 4".

[0057] As shown in Figure 17, the beam 3 has three beam-side small-diameter pin holes 3a1, 3a1' at the top and bottom, through which small-diameter drift pins 15 pass, for fixing the short U-shaped metal fittings 12 at the top and bottom, respectively, while seven column-side small-diameter pin holes 4a1" at the left side of the upper end of the pillar 4" through which small-diameter drift pins 15 pass for fixing the long U-shaped metal fittings 11 and the short U-shaped metal fittings 12, and seven circular bolt head accommodating grooves 4b" at the right side of the upper end of the pillar 4", i.e., on the side opposite the column-side metal fitting accommodating groove 4a", for accommodating the head of the bolt 17a and washer 17c.

[0058] (Method of installing braces 5 in wooden parts of a structure 1 with column-type specifications shown in FIG. 15) Next, a method for installing the braces 5 in the wooden portion of the structure 1 with column-height specifications shown in FIG. 15 will be described.

[0059] First, in the case of the column-shaped specification as shown in FIG. 15, two columns 4, 4" are erected on the foundation 2 as shown in FIG. 18 using plate-shaped metal fittings 14' for cross members, small diameter drift pins 15, bolts 17a, nuts 17b, washers 17c, etc., and the beam 3 is fixed between the upper ends of the columns 4, 4" as described above to form a rectangular space.

[0060] In this rectangular space, the long U-shaped metal fitting 11 is fixed to the column side hardware storage groove portions 4a, 4a" of the column members 4, 4" at the two corners where the diagonal braces 5 are installed, using bolts 17a and nuts 17b that pass through the U-shaped metal fitting side bolt holes 11a1 of the back plate portion 11a of the long U-shaped metal fitting 11 and the column members 4, 4", while the short U-shaped metal fitting 12 is fixed to the hardware storage groove portions 2a', 3a' of the base 2 and beam member 3, which are the cross members, using bolts 17a and nuts 17b, respectively.

[0061] Here, in the case of the column-first specification, when a rectangular space is first formed by the base 2, columns 4, 4", and beams 3 before the diagonal braces 5 are fixed as shown in Figure 18, unlike the case of the beam-first specification shown in Figures 1 and 2, etc., the diagonal braces 5 cannot be installed by lowering them from above within the plane (inside the wall), but must be inserted into the rectangular space from outside the plane (outside the wall).

[0062] Therefore, in order to avoid obstructing insertion from the out-of-plane (outside the wall) direction of the diagonal brace 5, the plate-shaped metal fittings 13 for the diagonal brace are not attached to the slits 5a, 5b for inserting plate-shaped metal fittings formed at the upper and lower ends of the diagonal brace 5, respectively.

[0063] In addition, in order to attach the plate-shaped metal fittings 13 for the diagonal brace after inserting the diagonal brace 5 from the outside of the plane (outside the wall) of the rectangular space, the base 2 and beam 3, which are the cross members, are provided with a base-side metal fitting accommodation groove 2a' and a beam-side metal fitting accommodation groove 3a' which extend in the longitudinal direction of the base 2 and beam 3 by more than the horizontal length of the plate-shaped metal fittings 13 for the diagonal brace, as shown in Figures 18, 19(a) and (b), and 20(a) and (b).

[0064] 19(a) and (b) are a plan view and a perspective view of an enlarged portion C' in FIG. 18, and FIGS. 20(a) and (b) are a bottom view and a perspective view of an enlarged portion D' in FIG. 18.

[0065] As shown in Figs. 19(a), (b) and 20(a), (b), the base 2 and the beam 3 are provided with a base-side metal fitting groove 2a' and a beam-side metal fitting groove 3a', which extend in the longitudinal direction of the base 2 and the beam 3 by more than the horizontal length of the plate metal fitting 13 for the diagonal brace. Therefore, even after the diagonal brace 5 is inserted into the rectangular space surrounded by the base 2, the beam 3, and the two columns 4, 4'', as shown in Fig. 21(a), the horizontal length of the plate metal fitting 13 for the diagonal brace By utilizing the base-side hardware accommodating groove 2a' and the beam-side hardware accommodating groove 3a' extended to a length greater than or equal to the above, a diagonal brace plate hardware 13 can be inserted into each of the two plate hardware insertion slits 5a at the lower end of the diagonal brace 5 inserted into the recessed corner between the lower end of the column 4 and the base 2, and a diagonal brace plate hardware 13 can be inserted into each of the two plate hardware insertion slits 5b at the upper end of the diagonal brace 5 inserted into the corner between the upper end of the column 4" and the right end of the beam 3.

[0066] Thereafter, in order to fix the plate-shaped metal fittings 13 for diagonal braces inserted into the two plate-shaped metal fitting insertion slits 5a at the lower end of the diagonal brace 5 inserted into the corner between the lower end of the column 4 and the base 2 to the diagonal brace 5, the column 4, and the base 2, as shown in FIG. 21(b), the large-diameter drift pins 16 are passed through the large-diameter pin holes 5a1 on the diagonal brace side that penetrate the plate-shaped metal fitting insertion slits 5a at the lower end of the diagonal brace 5 and the large-diameter pin holes 13a on the plate-shaped metal fittings 13 for diagonal braces (see FIG. 5) to fix the plate-shaped metal fittings 13 for diagonal braces to the lower end of the diagonal brace 5, and the small-diameter pin holes 13b on the plate-shaped metal fittings 13 for diagonal braces and the column-side metal fitting accommodation grooves 4a 7. The small diameter drift pin 15 is passed through the U-shaped metal fitting side small diameter pin hole 11b1 and the U-shaped metal fitting side small diameter pin hanging groove 11b2 of the long U-shaped metal fitting 11 housed in the column material 4 and the column material side small diameter pin hole 4a1 of the column material 4, and also through the plate-shaped metal fitting side small diameter pin hole 13c of the plate-shaped metal fitting 13 for diagonal brace, the U-shaped metal fitting side small diameter pin hole 12b1 of the short U-shaped metal fitting 12 housed in the base side metal fitting housing groove portion 2a', and the base side small diameter pin hole 2a1 of the base 2 (see Figure 7). This connects the plate-shaped metal fitting 13 for diagonal brace to the long U-shaped metal fitting 11 and the short U-shaped metal fitting 12, and fixes the diagonal brace 5 to the corner portion of the column material 4 and the base 2.

[0067] Similarly, in order to fix the diagonal brace plate metal fittings 13 inserted into the two plate metal fitting insertion slits 5b at the upper end of the diagonal brace 5 inserted into the corner between the upper end of the column material 4″ and the beam material 3 to the diagonal brace 5, the column material 4″, and the beam material 3, as shown in Figures 15 and 17, etc., the plate metal fittings 13 for the diagonal brace are fixed to the upper end of the diagonal brace 5 by passing large diameter drift pins 16 through the large diameter pin holes 5b1 on the diagonal brace side that penetrate the plate metal fitting insertion slits 5b at the upper end of the diagonal brace 5 and the large diameter pin holes 13a on the plate metal fittings 13 for the diagonal brace (see Figure 5). By passing a small diameter drift pin 15 through the U-shaped metal fitting side small diameter pin hole 11b1 and the U-shaped metal fitting side small diameter pin retaining groove 11b2 of the long U-shaped metal fitting 11 accommodated in the accommodation groove portion 4a" and the column side small diameter pin hole 4a1" of the column material 4", and also through the small diameter drift pin 15 through the plate-shaped metal fitting side small diameter pin hole 13c of the plate-shaped metal fitting 13 for diagonal brace, the U-shaped metal fitting side small diameter pin hole 12b1 of the short U-shaped metal fitting 12 accommodated in the beam side metal fitting accommodation groove portion 3a', and the beam side small diameter pin hole 3a1' of the beam material 3, the plate-shaped metal fitting 13 for diagonal brace is connected to the long U-shaped metal fitting 11 and the short U-shaped metal fitting 12, the diagonal brace 5 is fixed to the inside corner of the column material 4" and the beam material 3, and the construction is completed.

[0068] <Summary of the structure 1 and the brace installation method according to the embodiment of the present invention> As described above, in the structure 1 according to the embodiment of the present invention, when the diagonal brace 5 is installed, the metal fitting grooves 4a, 4a' and the metal fitting grooves 2a, 3a are formed in advance on the column members 4, 4' and on the cross members, sill 2 and beam members 3, and are fixed with bolts 17a, nuts 17b, etc. so that the long U-shaped metal fitting 11 or the short U-shaped metal fitting 12 does not protrude. The diagonal brace 5 is installed by fixing the plate-shaped metal fitting 13 for diagonal bracing, which has small diameter pin holes 13b, 13c on the plate-shaped metal fitting side and large diameter pin hole 13a on the plate-shaped metal fitting side to the small diameter pin holes 11b1, 11b1 on the U-shaped metal fitting side of a pair of side plate portions 11b, 11b and the small diameter pin holes 12b1, 12b1 on the U-shaped metal fitting side of a pair of side plate portions 12b, 12b of the short U-shaped metal fitting 12, using small diameter drift pins 15 and large diameter drift pins 16.

[0069] Therefore, even if an exposed structure is adopted in which the columns 4, 4', the cross members (base 2 and beam 3), and the diagonal braces 5 are exposed, it is possible to install metal fittings such as the long U-shaped metal fittings 11, the short U-shaped metal fittings 12, and the plate-shaped metal fittings 13 for diagonal braces with minimal exposure from the columns 4, 4', the cross members (base 2 and beam 3), and the diagonal braces 5, thereby improving the aesthetic appearance.

[0070] In addition, when the plate-shaped metal fittings 13 for the diagonal brace inserted into the slits 5a, 5b for inserting plate-shaped metal fittings of the diagonal brace 5 are fixed to the columns 4, 4' and the cross members, namely the sill 2 and the beam 3, they are fixed to the long U-shaped metal fittings 11 or short U-shaped metal fittings 12 fixed to the columns 4, 4', the sill 2 and the beam 3 sides by the U-shaped metal fitting bolt holes 11a1, 12a1 of the back plates 11a, 12a and the bolts 17a and nuts 17b that penetrate the columns 4, 4', the sill 2 and the beam 3. This makes it possible for the stress related to the diagonal brace 5 to be borne by the entire cross section of the columns 4, 4', the sill 2 and the beam 3 via the plate-shaped metal fittings 13 for the diagonal brace and the long U-shaped metal fittings 11 or short U-shaped metal fittings 12. Therefore, the stress is not concentrated only at the edges but is dispersed, thereby improving the strength of the entire structure 1.

[0071] In addition, in the method for installing the diagonal brace according to the embodiment of the present invention, a column-side metal fitting groove 4a is provided at the lower corner where the diagonal brace 5 is installed, so that the long U-shaped metal fitting 11 can be accommodated without protruding from the side surface of the column 4 facing the rectangular space. The long U-shaped metal fitting 11 is accommodated in the column-side metal fitting groove 4a, and the long U-shaped metal fitting 11 is secured in place by the U-shaped metal fitting side bolt hole 11a1 of the back plate 11a of the long U-shaped metal fitting 11 and the bolt 17a and nut 17b that penetrate the column 4. On the other hand, a base-side metal fitting groove 2a is provided with a depth that allows the short U-shaped metal fitting 12 to be accommodated without protruding from the side surface of the base 2 facing the rectangular space, and the short U-shaped metal fitting 12 is fixed by the U-shaped metal fitting side bolt hole 12a1 of the back plate portion 12a of the short U-shaped metal fitting 12 accommodated in the base-side metal fitting groove 2a and the bolt 17a and nut 17b that penetrate the base 2, and the plate-shaped metal fitting side small diameter pin hole 13b of the diagonal brace plate-shaped metal fitting 13 and the column side metal fitting A small diameter drift pin 15, which is a first linear fastener, is passed through the U-shaped metal side small diameter pin hole 11b1 of the long U-shaped metal 11 fixed to the accommodation groove portion 4a and the column side small diameter pin hole 4a1 of the column material 4, and the small diameter drift pin 15 is passed through the plate-shaped metal side small diameter pin hole 13c of the diagonal brace plate-shaped metal 13 and the U-shaped metal side small diameter pin hole 12b1 of the short U-shaped metal 12 fixed to the base side metal accommodation groove portion 2a of the base 2 so as to penetrate the base 2. At the upper corner where the diagonal brace 5 is installed, a pillar-side hardware accommodation groove 4a' is provided on the pillar 4' side, which is deep enough to accommodate the long U-shaped metal fitting 11 without protruding from the side of the pillar 4' facing the rectangular space, and the long U-shaped metal fitting 11 is fixed by the U-shaped metal fitting side bolt hole 11a1 of the back plate portion 11a of the long U-shaped metal fitting 11 accommodated in the pillar-side hardware accommodation groove 4a' and by a bolt 17a and a nut 17b which pass through the pillar 4'.Then, the diagonal brace plate metal 13 fixed to the base 2 is inserted into the lower plate metal insertion slit 5a of the diagonal brace 5, which has plate metal insertion slits 5a, 5b for inserting the diagonal brace plate metal 13 at both ends and large diameter pin holes 5a1, 5b1 on the diagonal brace side into which the large diameter drift pin 16 is inserted, and the large diameter drift pin 16 is inserted into the large diameter pin hole 13a on the plate metal side of the diagonal brace plate metal 13 and the large diameter pin hole 5a1 on the diagonal brace side of the diagonal brace 5. The lower end of the diagonal brace 5 is fixed to the lower inside corner portion through the top pin 16, the diagonal brace plate metal 13 is inserted by aligning the upper plate metal insertion slit 5b of the diagonal brace 5 with the pair of side plate portions 11b, 11b of the long U-shaped metal 11 fixed to the upper side of the other column material 4', and a small diameter drill is inserted into the U-shaped metal side small diameter pin hole 11b1 of the pair of side plate portions 11b, 11b of the long U-shaped metal 11, the plate metal side small diameter pin hole 13b of the diagonal brace plate metal 13, and the other column material 4'. The upper end of the diagonal brace 5 is fixed to the upper side of the other column 4 by passing the large-diameter drift pin 15 through the large-diameter pin hole 13a of the diagonal brace plate-shaped metal 13 and the large-diameter pin hole 5b1 of the diagonal brace plate-shaped metal 5 through the large-diameter drift pin 16. The lower side is provided with a metal receiving groove 3a having a depth that allows the short U-shaped metal 12 to be received without protruding, and the metal receiving groove 3a is provided with a bolt that passes through the U-shaped metal bolt hole 12a1 of the back plate 12a of the short U-shaped metal 12. The beam 3 to which the short U-shaped metal fitting 12 is fixed by the bolts 17a and nuts 17b is lowered toward the upper ends of the diagonal brace 5 and the columns 4, 4', and the upper end of the diagonal brace 5 is fixed to the beam 3 by passing the small diameter drift pin 15 through the small diameter pin hole 13c on the plate-shaped metal fitting side of the diagonal brace plate metal fitting 13 protruding from the upper end of the diagonal brace 5, the small diameter pin hole 12b1 on the U-shaped metal fitting side of the pair of side plate portions 12b, 12b of the short U-shaped metal fitting 12, and the beam 3.

[0072] Therefore, even when an exposed structure is adopted that exposes the columns 4, 4', the cross members such as the foundation 2 and the beams 3, and the diagonal braces 5, the diagonal braces 5 can be installed without exposing the long U-shaped metal fittings 11, the short U-shaped metal fittings 12, the plate-shaped metal fittings for diagonal braces 13, etc., to the greatest extent possible, improving the aesthetic appearance. Also, although the plate-shaped metal fittings for diagonal braces 13 shown in the figure have some parts exposed from the diagonal braces 5, it is of course possible to adjust the shape of the metal fittings and the width of the diagonal braces 5 so that the metal fittings are not exposed.

[0073] In addition, the metal fittings used to install the diagonal braces 5 are divided and constructed as separate pieces, such as long U-shaped metal fittings 11 on the column members 4, 4' side and short U-shaped metal fittings 12 on the base 2 and beam members 3 side, and plate-shaped metal fittings 13 for diagonal braces on the diagonal brace 5 side.This means that the diagonal braces 5 can be inserted not only from within the plane of the rectangular space, such as from above, but also from outside the plane (outside the wall), such as horizontally, of the rectangular space formed by the column members 4, 4' and cross members, thereby reducing restrictions on construction methods.

[0074] In another method of installing diagonal braces according to the present invention, at the two corners where the diagonal braces 5 are provided, column-side metal fitting grooves 4a, 4a" are provided on the column side 4, 4" so that the long U-shaped metal fitting 11 can be accommodated without protruding from the side surface of the column 4, 4" facing the rectangular space, and the long U-shaped metal fitting 11 is fixed by the U-shaped metal fitting side bolt hole 11a1 of the back plate portion 11a of the long U-shaped metal fitting 11 accommodated in the column-side metal fitting grooves 4a, 4a" and the bolt 17a and nut 17b that penetrate the column 4. On the other hand, on the side of the foundation 2 or beam 3, which are the cross members, the short U-shaped metal fittings 12 are extended in the longitudinal direction of the foundation 2 or beam 3 by more than the lateral length of the diagonal brace plate metal fittings 13, to a depth that allows the short U-shaped metal fittings 12 to be accommodated without protruding from the side of the foundation 2 or beam 3 facing the rectangular space, and metal fitting insertion grooves 2a', 3a' are provided for inserting the diagonal brace plate metal fittings 13 into the plate metal fitting insertion slits 5a, 5b of the diagonal brace 5 after the diagonal brace 5 is installed, and the U-shaped metal fitting side bolts of the back plate parts 12a of the short U-shaped metal fittings 12 accommodated in the metal fitting accommodation grooves 2a', 3a' are provided. The short U-shaped metal fitting 12 is fixed by the bolt 17a and nut 17b that penetrate the hole 12a1 and the cross member, and the diagonal brace 5, which has the plate-shaped metal fitting insertion slits 5a, 5b for inserting the diagonal brace plate-shaped metal fitting 13 at both ends and the diagonal brace side large diameter pin holes 5a1, 5b1 for inserting the large diameter drift pin 16, is inserted between the two recessed corners from the outside of the surface (outside of the wall surface) of the rectangular space, and then the diagonal brace plate is inserted into the base side metal fitting accommodation groove 2a' and the beam side metal fitting accommodation groove 3a' provided in the cross member base 2 and the beam 3 of each of the two recessed corners. The diagonal brace plate metal 13 is inserted and slid toward the inside corner, so that the diagonal brace plate metal 13 moves into the plate metal insertion slits 5a, 5b of the diagonal brace material 5, and the small diameter pin hole 13c of the diagonal brace plate metal 13 is aligned with the small diameter pin hole 12b1 of the U-shaped metal side of the pair of side plate portions 12b, 12b of the short U-shaped metal 12 fixed to the base 2 or the beam material 3, and the small diameter drift pin 15 is passed through, and the small diameter pin hole 13b of the diagonal brace plate metal 13 is aligned with the pair of side plate portions 11b, 12b of the long U-shaped metal 11 fixed to the column material 4, 4″.The diagonal brace 5 is installed at the two corners by aligning the small diameter drift pin 15 with the small diameter pin hole 11b1 on the U-shaped metal plate 11b and passing the small diameter drift pin 15 through the small diameter drift pin 15, and aligning the large diameter pin hole 13a on the plate-shaped metal plate 13 with the large diameter pin hole 5a1 on the diagonal brace 5.

[0075] Therefore, according to another diagonal brace installation method of the present invention, the diagonal brace 5 is inserted between the two inside corners of the rectangular space formed by a pair of columns 4, 4" and the sill 2 and beam 3 from the out-of-plane (outside the wall) direction, and then the diagonal brace plate metal fittings 13 are inserted into the base-side metal fitting storage groove 2a' and the beam-side metal fitting storage groove 3a' provided in the base 2 and beam 3, which are the cross members of each of the two inside corners, and slid toward the inside corner to move the diagonal brace plate metal fittings 13 into the plate metal fitting insertion slits 5a, 5b of the diagonal brace 5, and the diagonal brace 5 can be installed at the two inside corners. Therefore, even if it is necessary to install the beam 3 before installing the diagonal brace 5, it is possible to install the diagonal brace 5, thereby reducing restrictions on the construction method.

[0076] In addition, the diagram in which the diagonal brace 5 shown here is inserted between two corners from the out-of-plane (outside the wall) direction into the rectangular space formed by a pair of columns 4, 4", sill 2 and beam 3 is of a column-biased specification, but it can also be constructed with a beam-biased specification and no restrictions are placed on the specifications. This is the same for the construction method of lowering diagonal braces between columns shown in Figures 13 to 14, and there are no restrictions on the specifications such as column bias or beam bias, and it is merely illustrated as an example of a construction method.

[0077] In addition, the hardware storage grooves shown in the figures are provided on the cross members, namely the base 2 and beam 3, with the base-side hardware storage groove 2a' and the beam-side hardware storage groove 3a' provided on the cross members. However, for ease of construction, the hardware storage groove may also be provided on the column side. For example, the base side at the bottom of the rectangular space can be extended in the longitudinal direction of the base 2 or beam 3 by more than the horizontal length of the plate-shaped metal fittings for diagonal braces 13, and slid horizontally toward the inside corner, while the beam side at the top of the rectangular space can be constructed by extending the metal fitting accommodating groove in the longitudinal direction of the column 4" rather than the beam 3 by more than the vertical length of the plate-shaped metal fittings for diagonal braces 13, in the case where it is easier to work from the bottom, and then slid vertically toward the inside corner. Extending the metal fitting accommodating groove of the cross member or column by more than the horizontal or vertical length of the plate-shaped metal fittings for diagonal braces 13 can be selected as appropriate depending on the workability. Also, the plate-shaped metal insert of the diagonal brace 5 can be inserted in the longitudinal direction of the column 4" by more than the vertical length of the plate-shaped metal fittings for diagonal braces 13, in the case where it is easier to work from the bottom. The reason for extending the base-side hardware storage groove 2a' and beam-side hardware storage groove 3a' of the base 2 or beam 3, or the hardware storage groove of the column 4", rather than extending the required slits 5a, 5b, is that if the slits 5a, 5b for inserting plate-shaped hardware of the diagonal brace 5 were extended, it would be necessary to make the saw blade larger because the blade would not reach the required length, and in consideration of the reduced strength performance of the diagonal brace 5 when it buckles in the out-of-plane direction, the base-side hardware storage groove 2a' and beam-side hardware storage groove 3a' of the base 2 or beam 3, or the hardware storage groove of the column 4", were extended, but it is of course also possible to extend the slits 5a, 5b for inserting plate-shaped hardware of the diagonal brace 5.

[0078] In addition, in the embodiment shown this time, the diagonal brace 5 is a so-called single brace in which the diagonal brace 5 is provided between two diagonal inside corners of the rectangular space formed by a pair of columns 4, 4", the foundation 2, and the beam 3. However, it is of course possible to use a so-called cross brace in which the diagonal brace is provided between four inside corners of the rectangular space, and it is also possible to provide multiple diagonal braces 5 between two diagonal inside corners of the rectangular space. There are no restrictions on the specifications, such as the joining method (such as single brace or cross brace) or the number of diagonal braces 5. Furthermore, the diagonal braces 5 can be assembled in a V shape or K shape. There are no restrictions on the specifications for how the diagonal braces are assembled, and the illustration is merely an example of a construction method.

[0079] In addition, in the description of the above embodiment, a wooden structure having a foundation 2, beams 3, columns 4, and diagonal braces 5 has been used as an example, but the structure of the present invention is not limited to wooden structures, and for example, reinforced concrete columns and beams, steel frame columns and beams, etc. can also be used as components, and the structure can be applied to structures made of reinforced concrete, steel frame, and even a mixed structure of these. [Explanation of symbols]

[0080] 1 structure 11 Long U-shaped metal fittings 11a Back plate part 11a1 U-shaped metal fitting side bolt hole 11b Side plate part 11b1 Small diameter pin hole on U-shaped metal fitting side (first linear fastener hole on U-shaped metal fitting side) 11b2 U-shaped metal fitting side small diameter pin retaining groove 12 Short U-shaped metal fittings 12a Back plate part 12a1 U-shaped metal fitting side bolt hole 12b Side plate part 12b1 Small diameter pin hole on U-shaped metal fitting side (first linear fastener hole on U-shaped metal fitting side) 13 Bracing plate metal 13a: Large diameter pin hole on plate-shaped metal fitting side (second linear fastener hole on plate-shaped metal fitting side) 13b Small diameter pin hole on plate-shaped metal fitting side (first linear fastener hole on plate-shaped metal fitting side) 13c Small diameter pin hole on plate-shaped metal fitting side (first linear fastener hole on plate-shaped metal fitting side) 13d Hypotenuse 14 Plate metal fittings for cross beams 14a: Small diameter pin hole on plate-shaped metal fitting side (first linear fastener hole on plate-shaped metal fitting side) 14b Small diameter pin hole on plate-shaped metal fitting side (first linear fastener hole on plate-shaped metal fitting side) 15 Small diameter drift pin (first linear fixture) 16 Large diameter drift pin (second linear fixture) 17a Bolt 17b Nut 17c Washer 2. Foundation 2a, 2a' Base side metal fittings receiving groove 2a1, 2a1' Small diameter pin hole on the foundation side (first linear fixing hole on the cross member side) 3 Beam material 3a, 3a' Beam side metal fitting groove 3a1, 3a1' Beam side small diameter pin hole (cross member side first linear fastener hole) 3b' Bolt head accommodation groove 3b1 Small diameter pin hole on beam side 4,4',4” pillar material 4a, 4a', 4a" Pillar side metal fitting groove 4a1, 4a1', 4a1" Small diameter pin hole on pillar side (first linear fastener hole on pillar side) 4b, 4b', 4b" Bolt head accommodation groove 5 Bracing material 5a, 5b Slits for inserting plate-shaped metal fittings 5a1, 5b1 Large diameter pin hole on diagonal brace side (second linear fixing hole on diagonal brace side)

Claims

1. a U-shaped metal fitting having a back plate portion and a pair of side plate portions extending from both sides of the back plate portion, the back plate portion being provided with a U-shaped metal fitting side bolt hole into which a bolt shaft portion for fixing to a pillar or a cross member is inserted, and the pair of side plate portions being provided with a U-shaped metal fitting side first linear fastener hole into which a first linear fastener penetrating the pillar or cross member is inserted; A structure in which a diagonal brace is provided between two diagonal corners in a rectangular space surrounded by left and right pillars and upper and lower cross members, using a diagonal brace plate metal having a first linear fastener hole on the plate metal into which the first linear fastener that passes through the first linear fastener hole on the plate metal of each of the U-shaped metal fixed to the pillar and the U-shaped metal fixed to the cross member is inserted, and a second linear fastener hole on the plate metal into which a second linear fastener that passes through the diagonal brace is inserted, At the two corners where the braces are provided, The pillar is provided with a pillar-side first linear fastener hole through which the first linear fastener passes, and a pillar-side metal fitting accommodating groove is provided with a depth in which the U-shaped metal fitting is accommodated without protruding from the side surface of the pillar facing the rectangular space, and the U-shaped metal fitting is fixed to the pillar-side metal fitting accommodating groove by a bolt and a nut that pass through the U-shaped metal fitting side bolt hole of the U-shaped metal fitting and penetrate the pillar, The cross member is provided with a cross member-side first linear fastener hole through which the first linear fastener passes, and a cross member-side metal fitting groove is provided with a depth such that the U-shaped metal fitting is accommodated without protruding from the side surface of the cross member facing the rectangular space, and the U-shaped metal fitting is fixed to the cross member-side metal fitting groove by a bolt and a nut that pass through the U-shaped metal fitting side bolt hole of the U-shaped metal fitting and penetrate the cross member, The diagonal brace has a plate metal insertion slit into which the diagonal brace plate metal is inserted, and a diagonal brace side second linear fastener hole through which the second linear fastener passes, and the diagonal brace plate metal is inserted into the plate metal insertion slit and fixed by the second linear fastener passing through the plate metal side second linear fastener hole and the diagonal brace side second linear fastener hole, A structure characterized in that the diagonal brace is installed by passing the first linear fastener through the first linear fastener hole on the plate-shaped hardware of the diagonal brace plate metal, the first linear fastener hole on the U-shaped hardware of the U-shaped hardware fixed to the column-side hardware accommodating groove portion, and the first linear fastener hole on the column side of the column, and also by passing the first linear fastener through the first linear fastener hole on the plate-shaped hardware of the diagonal brace plate metal, the first linear fastener hole on the U-shaped hardware of the U-shaped hardware fixed to the cross member-side hardware accommodating groove portion, and the first linear fastener hole on the cross member side of the cross member.

2. a U-shaped metal fitting having a back plate portion and a pair of side plate portions extending from both sides of the back plate portion, the back plate portion being provided with a U-shaped metal fitting side bolt hole into which a bolt shaft portion for fixing to a pillar or a cross member is inserted, and the pair of side plate portions being provided with a U-shaped metal fitting side first linear fastener hole into which a first linear fastener penetrating the pillar or cross member is inserted; A method for installing diagonal braces between two diagonally opposite corners in a rectangular space surrounded by left and right pillars and upper and lower cross members, comprising using a diagonal brace plate metal for installing diagonal braces, the diagonal brace plate having a first linear fastener hole on the plate metal into which the first linear fastener that passes through the first linear fastener hole on the plate metal of each of the U-shaped metal fixed to the pillar and the U-shaped metal fixed to the cross member is inserted, and a second linear fastener hole on the plate metal into which a second linear fastener that passes through the diagonal brace is inserted, the method comprising the steps of: At the lower inside corner where the diagonal brace is installed, a column side metal fitting groove is provided on the column side, the depth of which allows the U-shaped metal fitting to be accommodated without protruding from the side surface of the column facing the rectangular space, and the U-shaped metal fitting is fixed by the U-shaped metal fitting side bolt hole provided in the column side metal fitting groove and the bolt and nut penetrating the column. A cross member side metal fitting groove is provided on the lower cross member side, the depth of which allows the U-shaped metal fitting to be accommodated without protruding from the side surface of the cross member facing the rectangular space, and the U-shaped metal fitting is fixed by the U-shaped metal fitting side bolt hole of the U-shaped metal fitting provided in the cross member side metal fitting groove and the bolt and nut penetrating the cross member, and the plate metal fitting side first linear fastener hole of the plate metal fitting for the brace material and the column side metal fitting groove are provided in the column side metal fitting groove. The first linear fastener is passed through the first linear fastener hole on the U-shaped hardware side of the fixed U-shaped hardware and the first linear fastener hole on the column side of the column, and the first linear fastener is passed through the first linear fastener hole on the plate hardware side of the diagonal brace plate hardware, the first linear fastener hole on the U-shaped hardware side of the U-shaped hardware fixed to the cross member side hardware accommodating groove portion of the cross member, and the first linear fastener hole on the cross member side of the cross member, thereby fixing the diagonal brace plate hardware; At the upper inside corner where the diagonal brace is installed, a column side metal fitting groove is provided on the column side, the depth of which allows the U-shaped metal fitting to be accommodated without protruding from the side surface of the column facing the rectangular space, and the U-shaped metal fitting is fixed by the U-shaped metal fitting side bolt hole of the U-shaped metal fitting provided in the column side metal fitting groove and a bolt and nut penetrating the column, the plate metal for the diagonal brace fixed to the lower cross member and column member is inserted into the plate metal insertion slit on the lower side of the diagonal brace, which has a plate metal insertion slit at both ends for inserting the plate metal for the diagonal brace and a plate metal side second linear fastener hole into which the second linear fastener is inserted, and the lower end of the diagonal brace is fixed to the lower recessed corner portion by passing the second linear fastener through the plate metal side second linear fastener hole of the plate metal for the diagonal brace and the plate metal side second linear fastener hole of the diagonal brace; The plate metal for the diagonal brace is inserted into the slit for inserting the plate metal on the upper side of the diagonal brace and into the pair of side plate portions of the U-shaped metal fixed to the upper side of the other pillar, the first linear fastener is passed through the first linear fastener hole on the U-shaped metal side of the pair of side plate portions of the U-shaped metal and the first linear fastener hole on the plate metal for the diagonal brace and into the upper side of the other pillar, and the second linear fastener is passed through the second linear fastener hole on the plate metal side of the plate metal for the diagonal brace and the second linear fastener hole on the plate metal side of the diagonal brace to fix the upper end of the diagonal brace to the upper side of the other pillar, A method for installing a diagonal brace, comprising the steps of: providing a hardware accommodation groove on the underside of the diagonal brace with a depth that allows the U-shaped metal to be accommodated without protruding; lowering an upper cross member, to which the U-shaped metal is fixed in the hardware accommodation groove with a bolt and nut that pass through the U-shaped metal bolt hole of the U-shaped metal in the U-shaped metal, toward the upper end of the diagonal brace; and fixing the upper end of the diagonal brace to the upper cross member by passing the first linear fastener through a first linear fastener hole on the plate metal for the diagonal brace protruding from the upper end of the diagonal brace, a first linear fastener hole on the U-shaped metal in a pair of side plate portions of the U-shaped metal, and a first linear fastener hole on the cross member side of the upper cross member.

3. a U-shaped metal fitting having a back plate portion and a pair of side plate portions extending from both sides of the back plate portion, the back plate portion being provided with a U-shaped metal fitting side bolt hole into which a bolt shaft portion for fixing to a pillar or a cross member is inserted, and the pair of side plate portions being provided with a U-shaped metal fitting side first linear fastener hole into which a first linear fastener penetrating the pillar or cross member is inserted; A method for installing diagonal braces between two diagonally opposite corners in a rectangular space surrounded by left and right pillars and upper and lower cross members, comprising using a diagonal brace plate metal for installing diagonal braces, the diagonal brace plate having a first linear fastener hole on the plate metal into which the first linear fastener that passes through the first linear fastener hole on the plate metal of each of the U-shaped metal fixed to the pillar and the U-shaped metal fixed to the cross member is inserted, and a second linear fastener hole on the plate metal into which a second linear fastener that passes through the diagonal brace is inserted, the method comprising the steps of: At the two corners where the braces are provided, A metal fitting groove is provided on the side of the pillar or cross member, the groove having a depth such that the U-shaped metal fitting is accommodated without protruding from the side of the pillar or cross member facing the rectangular space, and the U-shaped metal fitting is fixed by the U-shaped metal fitting bolt hole provided in the metal fitting groove and the bolt and nut passing through the pillar or cross member. On the cross member or column side, the plate metal for the diagonal brace is extended in the longitudinal direction of the cross member or column to a depth such that the U-shaped metal is accommodated without protruding from the side of the cross member or column facing the rectangular space, the plate metal for the diagonal brace is extended horizontally in the case of a cross member, or vertically in the case of a column, and a metal insertion groove is provided for inserting the plate metal for the diagonal brace into the plate metal insertion slit of the diagonal brace after the diagonal brace is installed, and the U-shaped metal is fixed by the U-shaped metal side bolt hole of the U-shaped metal provided in the metal accommodation groove and by a bolt and nut that pass through the cross member or column, A diagonal brace having a plate-shaped metal insertion slit at both ends for inserting the plate-shaped metal for the diagonal brace and a plate-shaped metal side second linear fastener hole into which the second linear fastener is inserted is inserted between the two recessed corners from the out-of-plane direction with respect to the rectangular space; a first linear fastener hole on the plate-shaped metal plate for diagonal brace material and a second ...

Images