JP2018053488A - Inter-member junction structure and fastening member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inter-member junction structure and a fastening member that are capable of preventing members from being relatively displaced and resisting vibration energy generated by a great earthquake or the like by means of bearing pressure.SOLUTION: This inter-member junction structure is provided with: a first member 43 in which holes 101 are formed; second members 26a, 26b in which through-holes 33 are formed; interposition structures 62 that are formed slightly smaller in diameter than the through-holes 33 formed in the second members 26a, 26b to fit in the through-holes 33, and brought into contact with the first member 43; and bolts 63 and nuts 64 that insert bolt shafts into at least the interposition structures 62 and the holes 101 of the first member 43 to fasten them. Inclined inner peripheral surfaces 101a are formed so as to be increased in diameter on the end sides thereof in the holes 101 of the first member 43, the interposition structures 62 are increased in thickness so as to protrude outside more than the second members 26a, 26b, inclined outer peripheral surfaces 62a are formed so as to be reduced in diameter, and the inclined outer peripheral surfaces 62a are brought into contact with the inclined inner peripheral surfaces 101a.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a joint structure between members to be introduced into a structure and a fastening member.

  Conventionally, a steel joint structure disclosed in Patent Document 1 has been proposed for the purpose of efficiently absorbing large vibration energy such as a large earthquake and preventing damage to structural members of a building.

  The steel material joining structure disclosed in Patent Document 1 is a steel material joining structure in which one steel material and the other steel material are joined by clamping with bolts from both sides of end portions of a plurality of steel materials. The clearance between the first large hole and the second large hole in the bolt and the accessory plate is increased while the clearance between the first small hole and the second small hole in the bolt and the accessory plate is reduced. is there. Thereby, the joining structure of the steel materials disclosed in Patent Document 1 is resisted by the bearing pressure when a large earthquake or the like occurs.

JP2012-127165A Japanese Patent No. 5422074

  However, although the steel material joining structure disclosed in Patent Document 1 reduces the clearance between the bolt and the first small hole and the second small hole in the accessory plate, the provision of the clearance causes vibration and the like. When this occurs, slipping occurs, so that vibration energy cannot be sufficiently absorbed, and there is a problem that rattling occurs between members.

  Further, in Patent Document 2, a pair of first members such as an iron plate, a steel plate, and a stainless steel plate are provided in a pair substantially parallel to each other with a predetermined interval protruding from the end of the face material in the in-plane direction. The second member such as aluminum is sandwiched between the pair of first members, and the building is caused by an earthquake or the like by the peristalsis in the state where the first member and the second member are in contact with different materials. A technique is disclosed that absorbs vibrations acting on the surface by friction damping to prevent the collapse of the building and the collapse of the face material.

  However, the disclosed technique of Patent Document 2 absorbs vibrations acting on the building by friction damping due to the peristalsis of the first member and the second member in contact with different materials. When this occurs, there is a problem in that the members are relatively displaced to cause backlash.

  Therefore, the present invention has been devised in view of the above-described problems, and the object of the present invention is to prevent relative displacement between members and to resist vibration energy due to a large earthquake or the like by supporting pressure. An object of the present invention is to provide a joining structure and a fastening member between members that can be used.

  The joining structure between the members according to claim 1 is the first member formed with a hole, the second member fixed to the structure, and formed with a through hole, and the second member formed with the second member. An intervening structure that is slightly reduced in diameter than the through hole and fitted into the through hole and is in contact with the first member, and at least bolts in the holes of the intervening structure and the first member And a fastening member that fastens them by penetrating the shaft of the first member, and the hole of the first member is formed with an inclined inner peripheral surface that is enlarged toward the end portion side of the inner peripheral surface, The structure is increased in thickness so as to protrude outward from the second member, and an inclined outer peripheral surface that is reduced in diameter toward the end of the outer peripheral surface is formed, and the inclined outer peripheral surface is within the inclined inner surface. It is characterized by being in contact with the peripheral surface.

  The joining structure between the members according to claim 2 is the second member formed with the through hole, the first member fixed to the structure and formed with the hole, and the second member formed on the second member. An intervening structure that is slightly reduced in diameter than the through hole and fitted into the through hole and is in contact with the first member, and at least bolts in the holes of the intervening structure and the first member And a fastening member that fastens them by penetrating the shaft of the first member, and the hole of the first member is formed with an inclined inner peripheral surface that is enlarged toward the end portion side of the inner peripheral surface, The structure is increased in thickness so as to protrude outward from the second member, and an inclined outer peripheral surface that is reduced in diameter toward the end of the outer peripheral surface is formed, and the inclined outer peripheral surface is within the inclined inner surface. It is characterized by being in contact with the peripheral surface.

  According to a third aspect of the present invention, in the invention according to the first or second aspect, the first member is interposed between the two second members, and the inclined inner peripheral surface is the first inner surface. Formed in both end portions of the inner peripheral surface of the hole of one member and formed in one interposition structure fitted in a through hole formed in the one second member and the other second member. Both of the other interposed structures fitted in the through holes are characterized in that the inclined outer peripheral surface is in contact with the inclined inner peripheral surface.

  The joining structure between members according to claim 4 is the invention according to any one of claims 1 to 3, wherein the interposition structure has an inclination angle of the inclined outer peripheral surface of the inclined inner peripheral surface. It is characterized by being formed substantially the same in angle.

  The joining structure between members according to claim 5 is the invention according to any one of claims 1 to 4, wherein the intervening structure is formed in the through hole based on a fastening force of the fastening member. It is characterized by being in contact with the peripheral surface.

  The joint structure between members according to claim 6 is the invention according to any one of claims 1 to 5, wherein the strength of the interposition structure is different from the strength of the first member. Features.

  The joining structure between the members according to claim 7 is the invention according to any one of claims 1 to 6, wherein the interposition structure is formed of the first member based on a fastening force of the fastening member. A press-fitting portion that is press-fitted into the hole is formed.

  The joining structure between members according to claim 8 is the invention according to any one of claims 1 to 6, wherein the interposition structure is formed on the first member based on a fastening force of the fastening member. It is characterized by being inserted.

  According to a ninth aspect of the present invention, there is provided a joining structure between members according to any one of the first to eighth aspects, wherein the fastening member is integrated with the interposition structure.

  The fastening member according to claim 10 is used for a joining structure between members according to claim 9.

  According to the present invention configured as described above, when vibration due to an earthquake is applied to a structure, the column body vibrates and displaces in the vertical direction. In such a case, the inclined outer peripheral surface of the interposition structure fitted in the through hole of the second member is in surface contact with the inclined inner peripheral surface of the hole of the first member. As a result, the support structure acts to resist the force to be vertically displaced, and a support pressure acts between the inclined inner peripheral surface of the hole of the first member and the inclined outer peripheral surface of the interposer structure. It will be. For this reason, the interposition structure is not displaced relative to the first member, and resists vibration caused by an earthquake according to these bearing pressures. In particular, when vibration due to an earthquake is applied, the columnar body is not displaced relative to the first member, so that collision between the columnar body and the first member and rattling can be prevented.

It is a perspective view of the joining structure between the members to which this invention is applied. It is sectional drawing of the joining structure between the members to which this invention is applied. It is sectional drawing of the junction structure between the members to which this invention is applied, Comprising: It is a figure which expands and shows the interposed structure vicinity. It is a perspective view which shows an intervention structure. It is the figure which inserted the interposition structure body into the through-hole, and was temporarily fixed. It is the figure which made the inclination inner peripheral surface of the hole of a 1st member face the inclination outer peripheral surface of an intervention structure. It is the figure which inserted the axis | shaft of the volt | bolt through the interposition structure and the hole of the 1st member, and fastened these. It is sectional drawing which shows the modification of the joining structure between the members to which this invention is applied. It is sectional drawing which shows the other modification of the joining structure between the members to which this invention is applied. It is a figure which shows the example which the centerline of the hole of the 1st member and the centerline of the through-hole of the 2nd member have shifted | deviated. It is a junction structure between members to which the present invention is applied, and in particular, is a cross-sectional view showing an example in which the yield point of the interposed structure is smaller than the yield point of the first member. It is a junction structure between members to which the present invention is applied, and is a cross-sectional view showing an example in which the yield point of the interposition structure is particularly larger than the yield point of the first member. It is a figure which abbreviate | omits the structure of one 2nd member and shows the example which joins only between the other 2nd member and 1st member. (A) is a perspective view which shows the volt | bolt as a fastening member to which this invention is applied, (b) is the sectional drawing. (A) is a perspective view which shows the nut as a fastening member to which this invention is applied, (b) is the sectional drawing. It is sectional drawing of the joining structure between the members using the fastening member to which this invention is applied. It is a figure of the joining structure between the members to which this invention is applied, and is a perspective view which shows the form with which a structure and a 1st member are especially comprised with a steel sheet pile. (A) is a figure of the joining structure between the members to which this invention is applied, and is a perspective view which shows the form with which especially a 1st member is comprised with a damper, (b) is the sectional drawing. It is a figure of the joining structure between the members to which this invention is applied, and is a perspective view which shows the form in which a structure is especially comprised by the column and a 1st member is comprised by the beam. It is sectional drawing of FIG. It is a figure which shows the example which attaches a 1st member to a column. It is a figure which shows the other example which attaches a 1st member to a pillar.

  Hereinafter, an embodiment for carrying out a joining structure 100 between members to which the present invention is applied will be described in detail with reference to the drawings.

  The joining structure 100 to which the present invention is applied is applied to, for example, a joining structure between two column bodies as shown in FIG. In this joint structure 100, a column body 41 as a so-called square steel pipe that is formed in a column shape and extends in a substantially vertical direction is provided with a second member 26 that is extended so that the in-plane direction becomes the vertical direction. Below the column body 41, a first member 43 formed of a so-called square steel pipe formed in a column shape and extending in a substantially vertical direction is provided. Thus, the joining structure 100 is a joining structure in which the column body 41 and the first member 43 are each used as a steel pipe column.

  FIG. 2 shows a detailed cross-sectional view of such a joint structure 100. FIG. 3 is an enlarged view of the vicinity of the interposition structure 62 in the sectional view of the joining structure 100.

  The first member 43 has a through-hole 101 formed therein. In each hole 101, a shaft of the bolt 63 is inserted, and an inclined inner peripheral surface 101 a is formed which is enlarged in diameter toward both end portions of the inner peripheral surface. When the inclination angle θ1 of the inclined inner peripheral surface 101a is set, the inclination angle θ1 is formed at about 45 °. This inclination angle θ1 takes a value larger than 0 ° and smaller than 90 °. The first member 43 is made of a steel plate, an aluminum plate, a stainless plate, a lead plate, a tin plate, a beryllium plate, a copper plate, a brass plate, an alloy plate of these metals, a resin, rubber, a resin plate, or the like. An upper end portion of the first member 43 is in contact with a lower end portion of the column body 41.

  The second member 26 is fixed to the column body 41 by welding before the first member 43 is joined. The second member 26 is configured by a rectangular steel pipe having a substantially rectangular cross section. Specifically, the second member 26 a is attached to the outer peripheral surface of the column body 41 by welding, and is attached to the inner peripheral surface of the column body 41 by welding. It is comprised by the 2nd member 26b. The first member 43 is interposed between the second member 26a and the second member 26b.

  A through hole 33 is formed in the second members 26a and 26b. The interposition structure 62 is fitted in each of the through holes 33. The interposition structure 62 is made of a low yield point steel, ductile metal such as aluminum, copper alloy, lead alloy, tin alloy, beryllium alloy, nickel alloy, zinc alloy, silver alloy, or brass alloy. In addition to the ductile metal, the interposition structure 62 may be made of any material that can be easily elastically deformed or plastically deformed, such as a resin, rubber, or a resin plate. The interposition structure 62 is formed so that a through hole 62d is formed substantially at the center to form a so-called ring. The outer shape and size of the interposition structure 62 are in accordance with the shape and size of the through hole 33 of the second member 26 into which the interposed structure 62 is fitted. That is, if the through hole 33 is circular, the outer shape of the interposition structure 62 is a circular shape that is slightly smaller in diameter than the through hole 33. Similarly, if the through hole 33 has a square shape, the outer shape of the interposition structure 62 also has a similar square shape with a slightly smaller diameter than the through hole 33. Furthermore, the thickness of the interposed structure 62 is increased so that the plate thickness is larger than the plate thickness of the second member 26 and protrudes outward from the second member 26. The plate thickness of the interposed structure 62 here refers to the thickness from one end of the interposed structure 62 to the other end.

  FIG. 4 shows a perspective view of the interposition structure 62. The intervening structure 62 is formed with an inclined outer peripheral surface 62a in which a part of the outer peripheral surface is reduced in diameter toward the end side, and the tip end portion 62b is formed in a flat shape. As shown in FIG. 3, the interposition structure 62 has an inclination angle θ2 of about 45 ° when the inclination angle θ2 of the inclined outer peripheral surface 62a is set, and the inclination angle θ1 of the inclined inner peripheral surface 101a of the hole 101 It is formed substantially the same. This inclination angle θ2 is larger than 0 ° and smaller than 90 °. The interposed structure 62 is not limited to the inclined outer peripheral surface 62a in which a part of the outer peripheral surface is reduced in diameter, but is formed with an inclined outer peripheral surface in which the entire outer peripheral surface is reduced in diameter, that is, the interposed structure The outer shape of the body 62 may be substantially frustoconical. Further, the interposition structure 62 may be formed such that the distal end portion 62b is not formed in a flat shape, that is, the inclined outer peripheral surface 62a is inclined from the outer peripheral surface to the through hole 62d. Further, the interposed structure 62 is not limited to the one in which the inclined outer peripheral surface 62a is formed without unevenness, and may be formed in a wave shape.

  As shown in FIG. 2, the bolt 63 has a shaft inserted through a through hole 62 d in the interposition structure 62 and a hole 101 in the first member 43. A nut 64 is screwed to the shaft tip of the bolt 63. The interposition structure 62 provided in the second member 26b is fitted into the through hole 33, and the inclination angle θ2 of the inclined outer peripheral surface 62a is formed substantially the same as the inclination angle θ1 of the inclined inner peripheral surface 101a. The outer peripheral surface 62a is in surface contact with the inclined inner peripheral surface 101a. The nut 64 is provided inside the first member 43 and is fitted and fixed to a nut cap 164 welded and fixed to the second member 26b before the first member 43 and the second member 26 are joined. Yes. By screwing the bolt 63 onto the nut 64, a reaction force against the fastening force when the bolt 63 is tightened acts on the nut 64, so that the interposition structure 62 and the first member 43 can be fastened. Become. By performing such tightening with the bolt 63 and the nut 64, the compression force from the head of the bolt 63 causes the interposed structure 62, the first member 43, and the second member 26b in the second member 26a. It will be transmitted through the body 62. As a result, the inclined outer peripheral surface 62a of the interposition structure 62 can be fixed to the inclined inner peripheral surface 101a of the hole 101 of the first member 43 with a pressing force applied. Note that so-called high-strength bolt joining may be performed between the bolt 63 and the nut 64. Moreover, although illustration is abbreviate | omitted, the nut 64 may be fixed by being spot-welded to the second member 26b without being fitted and fixed to the nut cap 164.

  Next, the joining method in the present invention having the above-described configuration will be described.

  As shown in FIG. 5, first, the second members 26 a and 26 b are fixed to the column body 41 by welding. A nut cap 164 is fixed to the second member 26b by welding, and a nut 64 is fitted and fixed to the nut cap 164. Then, the interposition structure 62 is fitted into the through-hole 33 using an adhesive, a pressure-sensitive adhesive, a hot melt adhesive, or the like and temporarily fixed. At this time, the front end 62b of the interposition structure 62 is disposed inside the through hole 33, that is, the front end 62b of the interposition structure 62 is not protruded from the surface of the second member. In addition, the interposition structures 62 arranged inside the through hole 33 in the second members 26a and 26b can be inserted to the next between the second members 26a and 26b so that the first member 43 can be inserted. , The separation distance is maintained. That is, the first member 43 can be reliably inserted between the second members 26 a and 26 b by arranging the distal end portion 62 b of the interposition structure 62 inside the through hole 33.

  Next, as shown in FIG. 6, the first member 43 is inserted between the second members 26 a and 26 b, and the diameter is increased toward both end portions of the inner peripheral surface of the hole 101 formed in the first member 43. The inclined inner peripheral surface 101 a is opposed to the inclined outer peripheral surface 62 a of the interposition structure 62. As described above, in order to insert the first member 43 between the second members 26 and 26b, the interposition structure 62 fitted into the through-hole 33 of the second member 26a and temporarily fastened, and the through-hole of the second member 26b The separation distance from the interposition structure 62 fitted and temporarily fastened to 33 is equal to or greater than the plate thickness of the first member 43.

  Next, as shown in FIG. 7, the shaft of the bolt 63 is passed through at least the hole 101 of the interposition structure 62 and the first member 43, and the nut 64 is screwed to the tip of the shaft of the bolt 63 to fasten them. To do. Since the bolt 63 is screwed onto the nut 64 fitted in the nut cap 164 fixed to the second member 26b by welding, a reaction force against the fastening force when the bolt 63 is tightened acts on the nut 64. It becomes possible to fasten the body 62 and the first member. By tightening with such bolts 63 and nuts 64, the inclined outer peripheral surface 62 a of the interposition structure 62 is brought into surface contact with the inclined inner peripheral surface 101 a of the hole 101 of the first member 43.

  Next, the function and effect of the present invention having the above-described configuration will be described.

  As shown in FIG. 3, when vibration due to an earthquake is applied to the structure, the column body 41 vibrates and displaces in the vertical direction. In such a case, the inclined outer peripheral surface 62 a of the interposition structure 62 fitted into the through hole 33 of the second member 26 a, 26 b is in surface contact with the inclined inner peripheral surface 101 a of the hole 101 of the first member 43. As a result, the interposition structure 62 tries to resist the force to be vertically displaced between the inclined inner peripheral surface 101a of the hole 101 of the first member 43 and the inclined outer peripheral surface 62a of the intervening structure 62. The bearing pressures act on each other. For this reason, the interposition structure 62 is not displaced relative to the first member 43, and resists vibration caused by an earthquake in accordance with these bearing pressures. In particular, when vibration due to an earthquake is applied, the column body 41 is not relatively displaced with respect to the first member 43, thereby preventing collision and rattling between the column body 41 and the first member 43.

  Therefore, the present invention can be embodied as a joint structure 100 capable of resisting vibration energy due to a large earthquake or the like by supporting pressure.

  Further, according to the present invention, the second members 26a and 26b are first joined to the column 41 by welding, and then the first member 43 is interposed between the second members 26a and 26b. The interposition structure 62 is fitted in the bolts 63 and fixed via bolts 63 and nuts 64. At this time, it is difficult to adjust and weld the second member 26 to the predetermined position with no error with respect to the column 41, and the interval between the second members 26a and 26b is as shown in FIG. There is a case where it is configured wider than the thickness of the one member 43.

  As described above, when a positional deviation or a construction error occurs when the second member 26 is welded to the column body 41, a gap is generated between the second member 26 and the first member 43. As shown in FIG. 2, a gap α1 between the first member 43 and the second member 26a and a gap α2 between the first member 43 and the second member 26b are used.

  When such gaps α1 and α2 are formed, it is desirable to interpose a spacer made of a steel plate or the like in the gaps α1 and α2 although illustration is omitted. Accordingly, when the bolt 63 and the nut 64 are tightened, the gap α1 between the first member 43 and the one second member 26a and the gap α2 between the first member 43 and the other second member 26b are maintained. Thus, it is possible to prevent an internal force moment from being generated by tightening the bolt 63 and the nut 64 at the joint between the second members 26a and 26b and the column body 41. In addition, this spacer may be comprised with an epoxy resin, a cement-type material, etc.

  Further, according to the present invention, an example is shown in which the inclination angle θ1 of the inclined inner peripheral surface 101a of the hole 101 and the inclination angle θ2 of the inclined outer peripheral surface 62a are each formed at approximately 45 °. And the inclination angle θ2 are preferably values close to 90 °. This is because the supporting pressure acting on the inclined outer peripheral surface 62a when resisting the force accompanying the vibration in the vertical direction is a component force obtained by shifting the force acting on the inclined outer peripheral surface 62a in the vertical direction by the inclination angle θ2. Because. Further, although the case where the inclination angle θ1 and the inclination angle θ2 are formed to be substantially the same is illustrated, it may not be substantially the same. Even in such a form, the inclined outer peripheral surface 62a is in line contact with the inclined inner peripheral surface 101a, and it is possible to generate a support pressure between the inclined outer peripheral surface 62a and the inclined inner peripheral surface 101a. It is.

  In addition, according to the present invention, the diameter of the first member 43 may be reduced toward either one of the end portions instead of being reduced toward the both end portions of the hole 101. .

  In addition, according to the present invention, when the interposition structure 62 is fitted into the through hole 33, liquid (adhesive, lubricant) is injected between the through hole 33 and the interposition structure 62. It may be. When an adhesive is used as the liquid, for example, a two-component type composed of a silicon adhesive and an epoxy adhesive may be used. Further, in order to further reduce the difference in diameter, a lubricant may be used and injected on site. Thereby, the operation | work which fits the interposition structure 62 in the through-hole 33 becomes easy.

  Further, according to the present invention, the interposed structure 62 may be inserted into the through-hole 33 while being cooled, and then the diameter difference may be almost the same when both are at the same temperature. That is, the material constituting the interposition structure 62 contracts due to cooling, but when the temperature rises thereafter, the contracted material expands. Using this phenomenon, when fitting into the through-hole 33, by reducing the diameter of the interposed structure 62 by cooling, the ease of fitting is improved, and then the temperature naturally rises from the cooling state, The interposition structure 62 fitted in the through hole 33 swells.

  FIG. 8 is a cross-sectional view showing a modification of the joint structure to which the present invention is applied, and is an enlarged view particularly showing the vicinity of the interposition structure 62. In the illustrated form, the strength of the interposition structure 62 and the strength of the first member 43 are made different, and in particular, the yield point of the interposition structure 62 is made smaller than the yield point of the first member 43. The one member 43 and the interposition structure 62 are made of different materials.

  As shown in FIG. 8, the inclined outer peripheral surface 62 a of the interposition structure 62 is brought into contact with the inclined inner peripheral surface 101 a of the hole 101 of the first member 43 by tightening with the bolt 63. By further tightening with the bolt 63 from this state, the interposed structure 62 is slightly reduced in diameter than the through-hole 33, so that the interposed structure 62 is elastically deformed or plastically deformed. The outer peripheral surface of the body 62 comes into contact with the through hole 33. Further, since the interposed structure 62 is slightly larger in diameter than the shaft of the bolt 63, the interposed structure 62 is elastically deformed or plastically deformed, and the through hole 62 d of the interposed structure 62 is the bolt 63. It will be in contact with the shaft. At this time, since the yield point of the interposed structure 62 is smaller than the yield point of the first member 43, the interposed structure 62 is press-fitted into the gap between the hole 101 of the first member 43 and the shaft of the bolt 63. The press-fitting part 67 is formed. That is, in the interposition structure 62, the press-fit portion 67 formed by elastic deformation or plastic deformation is brought into contact with the hole 101 of the first member 43 and the shaft of the bolt 63.

  Next, the function and effect of the present invention having the above-described configuration will be described.

  When vibration due to an earthquake is applied to the structure, the column body 41 vibrates and displaces in the vertical direction. In such a case, the inclined outer peripheral surface 62 a of the interposition structure 62 fitted into the through hole 33 of the second member 26 a, 26 b is in surface contact with the inclined inner peripheral surface 101 a of the hole 101 of the first member 43. As a result, the interposition structure 62 tries to resist the force to be vertically displaced between the inclined inner peripheral surface 101a of the hole 101 of the first member 43 and the inclined outer peripheral surface 62a of the intervening structure 62. The bearing pressures act on each other. In addition, the press-fitting portion 67 of the interposition structure 62 fitted into the through hole 33 of the second member 26 is press-fitted into the gap between the hole 101 of the first member 43 and the shaft of the bolt 63. At this time, the support structure 62 tries to resist the force to be displaced vertically, and a support pressure acts between the hole 101 of the first member 43 and the press-fit portion 67 of the support structure 62. Become. Thereby, the interposition structure 62 is not displaced relative to the first member 43. At the same time, since the interposition structure 62 is in contact with the through hole 33, a bearing pressure acts between the through hole 33 of the second member 26 and the interposition structure 62. Accordingly, the interposition structure 62 is not displaced relative to the second member 26. In this way, resistance to vibrations caused by an earthquake is more strongly resisted according to these bearing pressures. In particular, when vibration due to an earthquake is applied, the column body 41 is not relatively displaced with respect to the first member 43, thereby preventing collision and rattling between the column body 41 and the first member 43.

  Therefore, the present invention can be embodied as a joint structure 100 capable of resisting vibration energy due to a large earthquake or the like by supporting pressure.

  In particular, according to the present invention, the first member 43 and the interposition structure 62 are made of different materials. Here, the dissimilar material contact state is a dissimilar metal contact state in which iron or steel and aluminum are in contact, a dissimilar metal contact in which iron or steel and brass are in contact, or a dissimilar metal in which iron or steel and stainless are in contact. A contact state, a dissimilar material contact state in which an iron or steel material and a resin containing metal powder are in contact, a dissimilar material contact state in which an iron or steel material and a resin or rubber not containing metal powder are in contact, and the like. That is, the dissimilar material contact state may be anything as long as the materials constituting the first member 43 and the interposition structure 62 are different. As a result, as described above, the interposition structure 62 is formed with the press-fitting portion 67 that is press-fitted into the gap between the hole 101 of the first member 43 and the shaft of the bolt 63, so It is possible to act effectively. In the case described above, the first member 43 and the interposed structure 62 are made of different materials so that the yield point of the interposed structure 62 is smaller than the yield point of the first member 43. It becomes. It should be noted that the inclined inner peripheral surface 101a of the hole 101 of the first member 43 and the inclined of the intervening structure 62, except when the first member 43 itself and the intervening structure 62 itself are made of different materials. What is necessary is just to comprise the outer peripheral surface 62a with a different material. Thus, it goes without saying that the above-described effects can be obtained.

  FIG. 9 is a cross-sectional view showing another modified example of the joint structure to which the present invention is applied, and particularly an enlarged view showing the vicinity of the interposition structure 62. In the illustrated form, the strength of the interposition structure 62 and the strength of the first member 43 are made different, and in particular, the yield point of the interposition structure 62 is made larger than the yield point of the first member 43. The one member 43 and the interposition structure 62 are made of different materials.

  As shown in FIG. 9, by tightening with the bolt 63, the inclined outer peripheral surface 62 a of the interposition structure 62 is brought into contact with the inclined inner peripheral surface 101 a of the hole 101 of the first member 43. By further tightening with the bolts 63 from such a state, the diameter of the interposition structure 62 is slightly smaller than that of the through hole 33, so that the outer peripheral surface of the interposition structure 62 is elastically deformed or plastically deformed. It comes into contact with the through hole 33. Further, since the interposed structure 62 is slightly larger in diameter than the shaft of the bolt 63, the interposed structure 62 is elastically deformed or plastically deformed, and the through hole 62 d of the interposed structure 62 is the bolt 63. It will be in contact with the shaft. At this time, since the yield point of the interposed structure 62 is larger than the yield point of the first member 43, the first member 43 is elastically deformed or plastically deformed, and the interposed structure 62 is fitted to the first member 43. It will be inserted. As a result, the first member 43 comes into contact with the shaft of the bolt 63.

  Next, the function and effect of the present invention having the above-described configuration will be described.

  When vibration due to an earthquake is applied to the structure, the column body 41 vibrates and displaces in the vertical direction. In such a case, the inclined outer peripheral surface 62 a of the interposition structure 62 fitted into the through hole 33 of the second member 26 a, 26 b is in surface contact with the inclined inner peripheral surface 101 a of the hole 101 of the first member 43. As a result, the interposition structure 62 tries to resist the force to be vertically displaced between the inclined inner peripheral surface 101a of the hole 101 of the first member 43 and the inclined outer peripheral surface 62a of the intervening structure 62. The bearing pressures act on each other. In addition, when the interposition structure 62 fitted into the through hole 33 of the second member 26 is fitted into the first member 43, the first member 43 comes into contact with the shaft of the bolt 63. At this time, the first member 43 tries to resist the force to be vertically displaced, and a support pressure acts between the first member 43 and the shaft of the bolt 63. Thereby, the bolt 63 is not displaced relative to the first member 43. At the same time, since the interposition structure 62 is in contact with the through hole 33, a bearing pressure acts between the through hole 33 of the second member 26 and the interposition structure 62. Accordingly, the interposition structure 62 is not displaced relative to the second member 26. In this way, resistance to vibrations caused by an earthquake is more strongly resisted according to these bearing pressures. In particular, when vibration due to an earthquake is applied, the column body 41 is not relatively displaced with respect to the first member 43, thereby preventing collision and rattling between the column body 41 and the first member 43.

  Therefore, the present invention can be embodied as a joint structure 100 capable of resisting vibration energy due to a large earthquake or the like by supporting pressure.

  In particular, according to the present invention, the first member 43 and the interposition structure 62 are made of different materials so that the yield point of the interposition structure 62 is larger than the yield point of the first member 43. It becomes. It should be noted that the inclined inner peripheral surface 101a of the hole 101 of the first member 43 and the inclined of the intervening structure 62, except when the first member 43 itself and the intervening structure 62 itself are made of different materials. What is necessary is just to comprise the outer peripheral surface 62a with a different material. Thus, it goes without saying that the above-described effects can be obtained.

  FIG. 10 is a cross-sectional view showing another modified example of the joint structure to which the present invention is applied, and particularly an enlarged view showing the vicinity of the interposition structure 62.

  Here, when the second members 26a and 26b are subjected to, for example, heat distortion when being welded to the column body 41, there is no dimensional error with respect to the hole 101 of the first member 43. It is difficult to adjust the through holes 33 of 26a and 26b to predetermined positions. At this time, as shown in FIG. 10, when the center line of the through hole 33 of the second member 26 is C1, and the center line of the hole 101 of the first member 43 is C2, the center of one through hole 33-1. When the line C1 and the center line C2 of the one hole 101-1 are made coincident with each other, the second member 26a, 26b that is welded and fixed to the column body 41 actually has an error in the other through-hole 33-2. The center line C1 and the center line C2 of the other hole 101-2 may be shifted by a distance e.

  In such a case, the inclined outer peripheral surface 62a of the other intervening structure body 62-2 is in line contact with the inclined inner peripheral surface 101a of the other hole 101-2, and the inclined outer peripheral surface of the other intervening structure body 62-2. A gap s is formed between 62a ′ and the inclined inner peripheral surface 101a of the other hole 101-1.

  Even in such a case, the one interposition structure 62 and the first member 43 are fastened by the one bolt 63-1 and the one nut 64-1, so that The inclined outer peripheral surface 62a is in surface contact with the inclined inner peripheral surface 101a of one hole 101-1. As a result, the interposition structure 62 tries to resist the force to be vertically displaced, and the inclined inner peripheral surface 101a of one of the holes 101-1 and the inclined outer peripheral surface 62a of the one intervening structure 62-1. The bearing pressure acts between each other. For this reason, the interposition structure 62 is not displaced relative to the first member 43, and resists vibration caused by an earthquake in accordance with these bearing pressures. That is, the center line C1 of the other through hole 33-2 and the center line C2 of the other hole 101-2 are shifted by a distance e due to the construction error of the second members 26a and 26b fixed to the column body 41 by welding. Even if it is, it will resist the vibration caused by the earthquake according to the bearing pressure.

  FIG. 11 shows an example in which the other bolt 63-2 is further tightened from the configuration shown in FIG. In the illustrated form, the first member 43 and the interposition structure 62 are made of different materials so that the yield point of the interposition structure 62 is smaller than the yield point of the first member 43.

  Further, by tightening the other bolt 63-2 and the other nut 64-2, a press-fitting portion in which the inclined outer peripheral surface 62a side of the other interposition structure 62-2 is press-fitted into the other hole 101-2 is formed, The inclined outer peripheral surface 62a 'of the other intervening structure 62-2 is brought into line contact with the inclined inner peripheral surface 101a of the other hole 101-2. That is, the inclined outer peripheral surfaces 62a and 62a ′ of the other interposed structure 62-2 are in surface contact with the inclined inner peripheral surface 101a of the other hole 101-2. Thereby, the other intervening structure 62-2 tries to resist the force to be vertically displaced, and the inclined inner peripheral surface 101a of the other hole 101-2 of the first member 43 and the other intervening structure. The supporting pressure acts between the inclined outer peripheral surfaces 62a and 62a 'of 62-2.

  At this time, the inclined outer peripheral surface 62a of the one interposition structure 62-1 is brought into surface contact with the inclined inner peripheral surface 101a of the one hole 101-1. Thereby, one intervention structure 62-1 tries to resist the force which is going to move vertically, and one inner structure 101a of one hole 101-1 of the 1st member 43 and one intervention structure The bearing pressure also acts between the inclined outer peripheral surface 62a of 62-1.

  For this reason, the interposition structures 62-1 and 62-2 are not relatively displaced with respect to the first member 43, and are more strongly resistant to vibration caused by an earthquake in accordance with these bearing pressures. That is, when the center line C1 of the other through-hole 33 and the center line C2 of the other hole 101 are shifted by a distance e due to the construction error of the second members 26a and 26b fixed to the column 41 by welding. Even if it exists, it will resist the vibration caused by the earthquake according to the bearing pressure.

  If the inclined outer peripheral surface 62a ′ of at least the other interposition structure 62-2 is in line contact with the other hole 101-2 by tightening the other bolt 63-2 and the other nut 64-2, the above description will be given. The effect which it did is produced. For this reason, the other bolt 63-2 may be further tightened, and the inclined outer peripheral surface 62a 'of the other interposed structure 62-2 may be press-fitted into the other hole 101-2. Of course, the above-described effects can be obtained.

  FIG. 12 shows an example in which the other bolt 63-2 is further tightened from the configuration shown in FIG. In the illustrated form, the first member 43 and the interposition structure 62 are made of different materials so that the yield point of the interposition structure 62 is larger than the yield point of the first member 43.

  Further, by tightening the other bolt 63-2 and the other nut 64-2, the inclined outer peripheral surface 62a side of the other interposed structure 62-2 is recessed into the first member 43, and the other interposed structure The inclined outer peripheral surface 62a ′ of 62-2 is brought into contact with the inclined inner peripheral surface 101a of the other hole 101-2. That is, the inclined outer peripheral surfaces 62a and 62a ′ of the other interposed structure 62-2 are in surface contact with the inclined inner peripheral surface 101a of the other hole 101-2. Thereby, the other intervening structure 62-2 tries to resist the force to be vertically displaced, and the inclined inner peripheral surface 101a of the other hole 101-2 of the first member 43 and the other intervening structure. The supporting pressure acts between the inclined outer peripheral surfaces 62a and 62a 'of 62-2.

  At this time, the inclined outer peripheral surface 62a of the one interposition structure 62-1 is brought into surface contact with the inclined inner peripheral surface 101a of the one hole 101-1. Thereby, one intervention structure 62-1 tries to resist the force which is going to move vertically, and one inner structure 101a of one hole 101-1 of the 1st member 43 and one intervention structure The supporting pressure acts between the inclined outer peripheral surface 62a of 62-1 and each other.

  For this reason, the interposition structures 62-1 and 62-2 are not relatively displaced with respect to the first member 43, and are more strongly resistant to vibration caused by an earthquake in accordance with these bearing pressures. That is, when the center line C1 of the other through-hole 33 and the center line C2 of the other hole 101 are shifted by a distance e due to the construction error of the second members 26a and 26b fixed to the column 41 by welding. Even if it exists, it will resist the vibration caused by the earthquake according to the bearing pressure.

  If the inclined outer peripheral surface 62a 'of at least the other interposed structure 62-2 is in line contact with the other hole 101-2 by tightening the other bolt 63-2, the above-described effects can be obtained. For this reason, the other bolt 63-2 may be further tightened, and the inclined outer peripheral surface 62 a ′ of the other interposed structure 62-2 may be fitted into the first member 43. Of course, the above-described effects can be obtained.

  FIG. 13 shows an example in which the configuration of the second member 26 b is omitted, and the joining is performed only between the second member 26 a and the first member 43. A bolt 63 is inserted from the outside of the first member 43, and the interposition structure 62 is fixed by the bolt 63 and the nut 64. Similarly, in this embodiment, the interposition structure 62 is fitted into the through hole 33 provided in the second member 26 a, and the inclined outer peripheral surface 62 a is in surface contact with the inclined inner peripheral surface 101 a of the hole 101. In this example, it is needless to say that the above-described effects can be obtained.

  FIG. 14 shows a bolt 363 as a fastening member to which the present invention is applied. The bolt 363 is integrally formed by integrally forming an interposition structure 362 having an inclined outer peripheral surface 362a. A shaft 363a is integrally formed on the inclined outer peripheral surface 362a side, and has a threaded portion 363b at the tip of the shaft 363a. The diameter of the interposed structure 362 in the bolt 363 is slightly larger than the diameter of the shaft 363a. As described above, the diameter of the interposed structure 362 is slightly larger than the diameter of the shaft 363a (for example, about 5 to 10 millimeters), so that the bolt 363 can be manufactured more easily. Become. When the inclination angle θ2 of the inclined outer peripheral surface 362a is set, the inclination angle θ2 is formed at about 45 °. This inclination angle θ2 is larger than 0 ° and smaller than 90 °. The diameter of the shaft 363a of the bolt 363 is preferably formed larger than the diameter of the thread portion 363b. The bolt 363 is not limited to a mode in which the shaft 363a is integrally molded and integrated with the interposition structure 362 in which the inclined outer peripheral surface 362a is formed. For example, separate members are used and these are welded to each other. It may be fixed and integrated.

  FIG. 15 shows a nut 364 as a fastening member to which the present invention is applied. The nut 364 is integrally formed by integrally molding an interposition structure 362 having an inclined outer peripheral surface 362a. Further, the nut 364 is formed with a hole 362d and a threaded portion 364b. The diameter of the interposition structure 362 in the nut 364 is slightly larger (for example, about 5 to 10 millimeters) than the diameter of the hole 362d. When the inclination angle θ2 of the inclined outer peripheral surface 362a is set, the inclination angle θ2 is formed at about 45 °. This inclination angle θ2 is larger than 0 ° and smaller than 90 °. The diameter of the hole 362d of the nut 364 is preferably smaller than the diameter of the thread portion 364b. That is, it is desirable that the thread portion 364b protrudes inward from the hole 362d.

  FIG. 16 shows a joining structure 100 between members using a fastening member to which the present invention is applied. In the illustrated form, the shaft 363 a of the bolt 363 is inserted into the hole 362 d of the nut 364. At this time, the diameter of the shaft 363a of the bolt 363 is formed larger than the diameter of the thread portion 363b, and the diameter of the hole 362d of the nut 364 is formed smaller than the diameter of the thread portion 364b. The shaft 363a of the bolt 363 can be inserted into the hole 362d of the 364, and the screw thread portion 363b of the bolt 363 can be screwed to the screw thread portion 364b of the nut 364.

  At this time, the inclined outer peripheral surface 362 a of the bolt 363 is in contact with the inclined inner peripheral surface 101 a of the hole 101 of the first member 43, and the inclined outer peripheral surface 362 a of the nut 364 is the inclined inner peripheral surface of the hole 101 of the first member 43. 101a is in contact. In this example, it is needless to say that the above-described effects can be obtained.

  Since the interposition structure 362 is integrally formed with the bolt 363 and the nut 364 as fastening members, the number of members can be reduced, and the operation of fitting the interposition structure 362 into the through hole 33 is facilitated. Is possible. As a result, the construction cost can be reduced. In addition, even when assuming the configuration of FIG. 16 as described above, any technical idea shown in FIGS. 1 to 13 may be reflected.

  The joining structure 100 to which the present invention is applied may be applied to a joining structure between two steel sheet piles as shown in FIG. The second member 26a, 26b, which is fixed to the steel sheet pile 141 as a structure and the through-hole 33 is formed, and the second member. 26a and 26b are inserted into through holes 33, and the interposition structure 62 that contacts the first member 43, the interposition structure 62, the bolt 63 inserted through the first member 43, and the screw 63 are screwed to the interposition structure 62. The nut 64 is provided. The hole 101 of the first member 43 is formed with an inclined inner peripheral surface in which the end portion side of the inner peripheral surface is enlarged, and the interposition structure 62 is formed with an inclined outer peripheral surface in which the outer peripheral surface is reduced in diameter. The outer peripheral surface is in contact with the inclined inner peripheral surface. Even when acting on such a joint structure 100, it is possible to obtain the same effect as described above. Even in the case of assuming the configuration of FIG. 17 as described above, any technical idea shown in FIGS. 1 to 16 may be reflected.

  FIG. 18 shows a case where the present invention is applied to a so-called damper 160. The damper 160 is fitted in the second members 26 a and 26 b that are fixed to the structure 181 by welding, and the through holes 33 provided in the second members 26 a and 26 b, and is interposed between the damper 160 and the first member 43. The structure 62, the interposition structure 62, a bolt 63 inserted through the first member 43, and a nut 64 screwed to the bolt 63 are provided. The other end of the first member 43 is fixed by welding to the other end of a screw rod 243 having a screw formed at one end. The hole 101 of the first member 43 is formed with an inclined inner peripheral surface 101a whose diameter is increased at the end of the inner peripheral surface, and the interposition structure 62 is formed with an inclined outer peripheral surface 62a whose outer peripheral surface is reduced in diameter. The inclined outer peripheral surface 62a is in contact with the inclined inner peripheral surface 101a. Even when acting on such a damper 160, the same effect as described above can be obtained. Even when such a configuration of FIG. 18 is assumed, any technical idea shown in FIGS. 1 to 16 may be reflected.

  The joining structure 100 to which the present invention is applied may be a joining structure of a column body 41 and a beam 42 as shown in FIGS. 19 and 20. The beam 42 is made of H-shaped steel and has first members 43a and 43b made of flanges. The joint structure 100 includes first members 43a and 43b in which holes 101 are formed, second members 26a and 26b in which through holes 33 are formed, and fixed to a column 41 as a structure. The interposition structure 62 that is fitted in the through-hole 33 provided in the two members 26a and 26b and contacts the first member 43, the interposition structure 62, the bolt 63 inserted through the first member 43, and the intermediary structure 62 And a nut 64 to be screwed. The hole 101 of the first member 43 is formed with an inclined inner peripheral surface 101a whose diameter is increased at the end of the inner peripheral surface, and the interposition structure 62 is formed with an inclined outer peripheral surface 62a whose outer peripheral surface is reduced in diameter. The inclined outer peripheral surface 62a is in contact with the inclined inner peripheral surface 101a. Even when acting on such a joint structure 100, it is possible to obtain the same effect as described above. In the case of assuming the configurations of FIGS. 19 and 20 as described above, any technical idea shown in FIGS. 1 to 16 may be reflected.

  FIG. 21 is a diagram illustrating an example in which the first member 43 is attached to the column body 41. In this example, one first member 43 is sandwiched between two second members 26a and 26b. Further, an interposing structure 62, a bolt 63 inserted through the second member 26, and a nut 64 screwed to the bolt 63 are provided. To the second member 26, for example, another member 301 made of an H-shaped steel flange is attached by welding or the like. In such a form, the hole 101 of the first member 43 is formed with an inclined inner peripheral surface 101a whose diameter is increased at the end of the inner peripheral surface, and the interposition structure 62 is an inclined outer peripheral surface whose outer peripheral surface is reduced in diameter. 62a is formed, and the inclined outer peripheral surface 62a is brought into contact with the inclined inner peripheral surface 101a. Note that any technical idea shown in FIGS. 1 to 20 may be reflected even in the case of assuming the configuration of FIG. 21 as described above.

  FIG. 22 is a diagram illustrating another example in which the first member 43 is attached to the column body 41. In this example, one first member 43 is sandwiched between two connected second members 26a and 26b. These two second members 26a and 26b are composed of a single steel plate 226 bent in a U-shape. The steel plate 226 is bent in advance at a factory or the like to form a notch 227a in which the outer surface of the bent part 227 is notched. As a result, it is possible to easily perform the bending process in a factory or the like. The notch 227a is fixed by welding to a member 301 formed of a flange such as H-shaped steel. That is, when this notch 227a is welded to the member 301, it functions as a groove.

  A through hole 33 is formed in the second members 26a and 26b of the steel plate 226 bent into a U-shape. The through hole 33 in the second member 26a and the through hole 33 in the second member 26b are formed in the second members 26a and 26b of the steel plate 226 bent in advance in a U-shape at a factory or the like by, for example, laser cutting or the like. Is done. As a result, the through hole 33 in the second member 26a and the through hole 33 in the second member 26b are aligned in the vertical direction without shifting their positions.

  The interposed structure 362 is integrated with the bolt 363, and the interposed structure 362 is fitted in the through hole 33 of the second member 26b. The hole 101 of the first member 43 is formed with an inclined inner peripheral surface 101a whose diameter is increased at the end of the inner peripheral surface, and the interposition structure 362 is formed with an inclined outer peripheral surface 362a whose outer peripheral surface is reduced in diameter. The inclined outer peripheral surface 362a is in contact with the inclined inner peripheral surface 101a.

  The interposing structure 362 is integrated with the nut 364, and the interposing structure 362 is fitted in the through hole 33 of the second member 26a. The hole 101 of the first member 43 is formed with an inclined inner peripheral surface 101a whose diameter is increased at the end of the inner peripheral surface, and the interposition structure 362 is formed with an inclined outer peripheral surface 362a whose outer peripheral surface is reduced in diameter. The inclined outer peripheral surface 62a is in contact with the inclined inner peripheral surface 101a.

  The nut 364 is screwed onto the shaft 363a of such a bolt 363, so that the first member 43 and the second member 26 are fastened. In such a configuration, it is possible to resist vibration energy due to a large earthquake or the like by supporting pressure, and by reducing the number of members, it is possible to shorten the construction time and the associated construction cost. . Even in the case of assuming the configuration of FIG. 22 as described above, any technical idea shown in FIGS. 1 to 21 may be reflected.

26: 2nd member 26a: 2nd member 26b: 2nd member 33: Through-hole 41: Column 141: Steel sheet pile 42: Beam 43: 1st member 43a: 1st member 43b: 1st member 62: Interposition structure Body 62a: Inclined outer peripheral surface 62a ': Inclined outer peripheral surface 62d: Hole 62d: Through hole 63: Bolt 64: Nut 67: Press-fit part 100: Joining structure 101: Hole 101a: Inclined inner peripheral surface 160: Damper 164: Nut cap 181 : Structure 243: screw rod 362: interposition structure 362a: inclined outer peripheral surface 362d: hole 363: bolt 363a: shaft 364: nut C1: centerline C2: centerline e: distance s: gap α1: gap α2: gap θ1: Inclination angle θ2: Inclination angle

Claims (10)

A first member in which a hole is formed;
A second member fixed to the structure and formed with a through hole;
An intervening structure that is slightly reduced in diameter than the through hole formed in the second member and fitted into the through hole, and is in contact with the first member;
A fastening member that fastens them by penetrating a shaft of a bolt in the hole of at least the interposition structure and the first member;
The hole of the first member is formed with an inclined inner peripheral surface that is expanded toward the end side of the inner peripheral surface,
The interposed structure is thickened so as to protrude outward from the second member, and an inclined outer peripheral surface that is reduced in diameter toward the end of the outer peripheral surface is formed. The joint structure between members, which is in contact with the inclined inner peripheral surface. A second member in which a through hole is formed;
A first member fixed to the structure and having a hole;
An intervening structure that is slightly reduced in diameter than the through hole formed in the second member and fitted into the through hole, and is in contact with the first member;
A fastening member that fastens them by penetrating a shaft of a bolt in the hole of at least the interposition structure and the first member;
The hole of the first member is formed with an inclined inner peripheral surface that is expanded toward the end side of the inner peripheral surface
The interposed structure is thickened so as to protrude outward from the second member, and an inclined outer peripheral surface that is reduced in diameter toward the end of the outer peripheral surface is formed. The joint structure between members, which is in contact with the inclined inner peripheral surface. The first member is interposed between the two second members,
The inclined inner peripheral surface is formed at each end of the inner peripheral surface of the hole of the first member,
Both of the one interposition structure fitted in the through hole formed in the one second member and the other interposition structure fitted in the through hole formed in the other second member are The joint structure between members according to claim 1, wherein the inclined outer peripheral surface is in contact with the inclined inner peripheral surface. The inter-member structure according to any one of claims 1 to 3, wherein the interposed structure is formed so that an inclination angle of the inclined outer peripheral surface is substantially the same as an inclination angle of the inclined inner peripheral surface. Bonding structure. The said interposition structure is contacted with the internal peripheral surface of the said through-hole based on the fastening force of the said fastening member. The joining between the members in any one of Claims 1-4 characterized by the above-mentioned. Construction. The joint structure between members according to any one of claims 1 to 5, wherein the strength of the interposition structure is different from the strength of the first member. The said intervention structure body is formed with the press-fit part press-fitted in the hole of the said 1st member based on the fastening force of the said fastening member. Bonding structure between members. The joining structure between members according to any one of claims 1 to 6, wherein the interposed structure is fitted into the first member based on a fastening force of the fastening member. The joint structure between members according to any one of claims 1 to 8, wherein the fastening member is integrated with the interposition structure.   A fastening member used for a joint structure between members according to claim 9.

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