JP6638368B2 - Joint structure - Google Patents

Description

  The present invention relates to a joining structure for joining ends of steel members.

  2. Description of the Related Art Conventionally, as a method for joining steel beams simply and firmly, for example, beam joining structures disclosed in Patent Documents 1 to 4 and the like have been proposed.

  The beam joining structure disclosed in Patent Literature 1 has a beam joining fitting formed with two joining plate portions projecting vertically from a side surface of a wooden beam and fixed to the side surface of the wooden beam, and has a joint plate portion. A bolt is inserted into the through hole and the through hole of the steel beam. A cylindrical member through which this bolt can be inserted is interposed between the joining plate portion and the steel beam, and the joining plate portion, the steel beam, and the tubular member are tightened with the bolt, thereby forming a beam joining fitting. The joining plate portion is in a state of being sandwiched between the tubular member and the bolt.

  The joining structure of a wooden frame disclosed in Patent Document 2 is composed of a steel beam made of a lightweight H-section steel, a wooden column, and a joining hardware for joining an end of the steel beam to an opposing side surface between the columns. Is done. The joint hardware was bolted to the side of the column in a vertical plane passing through the axis of the column, and to the end of the steel beam in a vertical plane passing through the axis of the column and the steel beam. It is formed from a joint and an arm connecting the fixed part and the joint outside the vertical plane passing through the axis of the column and the steel beam.

  The method of joining a small beam and a large beam disclosed in Patent Document 3 is to weld a gusset plate to a web of the large beam and weld guide plates to both sides of the gusset plate, and the gap between the guide plates is set at the upper end. The portion is configured to expand into a V-shape. The beam is suspended from the unit floor so that the lower flange of the beam end is cut out and the web of this notch is inserted into the gap between the guide plates. And is supported by being contacted with the upper end thereof.

  The joint structure of a steel member disclosed in Patent Literature 4 is a joint structure of a steel member such as a joint between a column and a beam, and at least two members to be joined that are overlapped and joined are at least one of joined members Is set to a plate thickness of 2.3 mm or more. Then, the two members to be joined are pierced by the drill blade of the drill screw, and are tapped by the screw portion of the drill screw, and the other member to be superimposed and the drill screw are crimped and integrated into a joint. Department.

JP 2008-115608 A JP 2010-95968 A JP-A-2004-278210 JP 2007-23703 A

  The beam joining structure disclosed in Patent Literature 1 is such that a wooden beam and a steel beam are integrally joined by a beam joining fitting by pressing and joining a joining plate portion of a beam joining fitting between a tubular member and a bolt. Shall be converted. However, in the beam joining structure disclosed in Patent Literature 1, since a tubular member is provided between the joining plate portion of the beam joining fitting and the steel beam, the number of components as the joining structure increases, and the wooden beam is increased. The material cost and the construction cost for joining the steel beam and the steel beam are increased. In addition, the beam joining structure disclosed in Patent Document 1 is joined only by inserting bolts into the through holes of the joining plate portion and the through holes of the steel beam, and the rigidity at the joining portion is reduced. There was a problem that the flooring material easily vibrated.

  Further, in the joining structure of the wooden frame disclosed in Patent Document 2, the fixing portion of the joining hardware is bolted to the side surface of the column with the axis of the column, and the joining portion of the joining metal is attached with the axis of the column. It is assumed that the steel beam and the wooden column are joined by metal fittings by being bolted to the end of the steel beam. However, the joint structure of the wooden frame disclosed in Patent Literature 2 has a problem that the efficiency of the lifting work of the steel beam is reduced because the joint beam cannot temporarily support the steel beam.

  Further, in the joining method of the girder and the girder disclosed in Patent Document 3, it is assumed that the web of the girder is inserted into a gap between the guide plates, and the girder plate and the guide plate support the girder. However, the method of joining a girder and a girder disclosed in Patent Document 3 requires welding work between a girder and a gusset plate, and welding work between a gusset plate and a guide plate. There was a problem that much labor was required and material costs and construction costs increased.

  Furthermore, in the joint structure of steel members disclosed in Patent Document 4, two members to be joined are superimposed and joined only by a plurality of drill screws. For this reason, the joint structure of the steel members disclosed in Patent Document 4 has a problem that the efficiency of the lifting operation of the steel members is reduced because it is difficult to temporarily support the steel members only with the drill screw. there were. Furthermore, even when the members to be joined are friction-welded only by a plurality of high-strength bolts, when a small number of high-strength bolts are provided, the joint becomes unbalanced. There is a problem that a high yield strength is provided and the cost increases.

  Therefore, the present invention has been devised in view of the above-described problems, and the object thereof is to temporarily support a steel member while reducing the number of parts, processing time and construction time. An object of the present invention is to provide a joint structure with improved efficiency of lifting work.

A joining structure according to a first aspect of the invention is a joining structure for joining ends of steel members, the steel member having a predetermined cross-sectional shape and extending in the material axis direction, and a steel member extending in the material axis direction. A connecting member joined to an end portion, the connecting member has a vertical plate abutting on a side surface of the steel member, and a main insertion hole that penetrates the vertical plate in a plate thickness direction is provided. The steel member is formed such that a main insertion hole having the side surface penetrated in the plate thickness direction is formed, and the side plate or the vertical plate is plated in a state where the vertical plate is in contact with the side surface. A drill screw is provided in the sub insertion hole penetrated in the thickness direction, and a bolt is inserted in the main insertion hole of the side surface and the main insertion hole of the vertical plate, and the sub insertion hole is formed in the main insertion hole of the side surface. The insertion hole and the main insertion hole of the vertical plate are formed at a plurality of locations with a smaller diameter than the main insertion hole, Or characterized in that it is arranged at a position it is spaced in all directions from the main insertion hole of the vertical plate.

In the joint structure according to a second aspect of the present invention, in the first aspect, the steel member is a beam member on which a flange and a web are formed, and the connecting member is formed on a peripheral member using wood or an H-shaped steel beam. Is attached, and the connecting member is joined to an end of the beam member in the axial direction of the beam.

Junction structure according to the third invention, in the first invention, the steel member, a plurality of beam members to the flanges and web have been formed is used, the the end of the timber axis of each of said beam member The connection member is joined.

The joining structure according to a fourth invention is the joint structure according to any one of the first invention to the third invention, wherein the bolt is a high-strength bolt that frictionally joins the side surface and the vertical plate, or the side surface and the vertical plate. It is characterized in that a middle bolt to be sheared is used.

In a joint structure according to a fifth aspect , in any one of the first to fourth aspects, the steel member includes a pair of flanges in the height direction and a web extending in the height direction and serving as the side surface. It is preferable that a lightweight H-section steel in which the web is formed in the widthwise intermediate portion of the flange, or a thin, lightweight steel in which the web is formed from one end in the width direction of the flange is used. Features.

According to the first invention to the fifth invention, after the steel member is temporarily supported on the connecting member by the high-strength bolt or the like, the crane or the like is immediately released from the steel member, and the crane or the like at another joint is provided. Since the lifting operation of the steel member can be performed, the lifting operation of the steel member can be performed sequentially and efficiently, and the efficiency of the lifting operation of the steel member can be improved.

According to the first invention to the fifth invention, the steel member and the connection member are fully tightened with the drill screw provided in the side insertion hole of the side of the steel member or the vertical plate, and the steel member and the connection member are connected. It is possible to firmly support the steel member by fully tightening the vertical plate with drill screws and bolts, and it is also possible to suppress the floor noise by improving the binding force of the steel member. Become.

According to the first invention to the fifth invention, the vertical plate of the connection member is arranged in contact with the web of the steel member, so that the eccentricity of the connection member and the steel member in the width direction is suppressed. It is possible to realize stable joining between the steel member and the connecting member. Thus, stable joining between the steel member and the connection member can be realized.

According to the first invention to the fifth invention, a connection member having high manufacturing easiness only by forming an opening such as a main insertion hole in a vertical plate, and a processing only forming an opening such as a main insertion hole in a web are provided. Since a low-grade steel member is used, it is possible to reduce the number of parts, processing time and construction time, and to reduce material cost and construction cost.

According to the first to fifth aspects of the present invention, since the drill screw and the bolt are jointly joined, the reliable joining by the bolt such as the high-strength bolt and the quick joining by the drill screw are used together to ensure the reliability. And quickness can be compatible, and a predetermined number of drill screws can be quickly provided, so that the final tightening operation using the drill screws can be efficiently performed.
According to the first to fifth aspects of the present invention, the sub-insertion holes formed at a plurality of locations are arranged at positions spaced apart from the main insertion hole in four directions, so that a bolt such as a high-strength bolt and a drill screw are formed. Because it is arranged in a well-balanced manner, it is possible to efficiently share the bending moment among a plurality of drill screws and bolts. It is possible to simultaneously achieve a well-balanced joint and secure necessary strength with the minimum number of bolts, thereby reducing material costs and construction costs.

In particular, according to the fourth invention, by using the high-strength bolt that frictionally joins the web and the vertical plate, the steel member and the connecting member are temporarily supported and fully tightened, so that the steel member is The binding force can be further increased. According to the fourth aspect of the present invention, the use of the intermediate bolts for shear-joining the web and the vertical plate allows the steel members to be secured while maintaining the minimum required force of the steel members even in a temporarily supported state. Temporary support can be quickly constructed.

In particular, according to the fifth invention, in addition to steel members having a span length in the axial direction of about 3 m to 4 m, the invention is also applied to medium to large span steel members of about 5 m to more than 8 m. In addition, the use of a lightweight H-shaped steel member or a thin lightweight steel member, which is lighter than a conventional H-shaped steel member, makes it possible to easily carry out the lifting operation of the steel member.

It is a perspective view showing the building provided with the joint structure to which the present invention is applied. (A) is sectional drawing which shows the steel member of a substantially H-shaped cross section used for the joining structure to which this invention is applied, (b) is sectional drawing which shows the steel member of a substantially C-shaped cross section. It is a perspective view showing the joining structure to which the present invention is applied. (A) is a top view which shows the connection member attached to the surrounding member by the joining structure which applied this invention, (b) is a top view which shows the modification of the back plate. It is a side view which shows the connection member in which the sub insertion hole was formed in the vertical plate in the joining structure to which this invention was applied, and a steel member. It is a side view which shows the steel member in which the sub penetration hole was formed in the web by the joining structure to which this invention was applied, and the connection member. It is a front view which shows the steel member of a substantially H-shaped cross section to which a connection member is joined by the joining structure which applied this invention. It is a front view which shows the steel member of a substantially C-shaped cross section to which a connection member is joined by the joining structure which applied this invention. (A) is a side view which shows the beam member which the edge part is joined to the surrounding member of the wood in the joining structure to which the present invention is applied, and (b) is the end part joined to the surrounding member of the H-shaped steel beam. It is a side view which shows the beam member performed. (A) is a side view showing a plurality of beam members whose ends are joined by a joining structure to which the present invention is applied, and (b) is joined by a conventional general beam end joining structure. It is a side view which shows a beam end part.

  Hereinafter, embodiments for implementing a joint structure 1 to which the present invention is applied will be described in detail with reference to the drawings.

  As shown in FIG. 1, the joining structure 1 to which the present invention is applied is, for example, a relatively small building 8 such as a detached house, or a relatively large building such as a store combined house and a nursing home for the elderly. In the object 8 and the like, the steel member 2 is provided to join the end 2a of the steel member 2 in the material axis direction X. In addition, the joining structure 1 to which the present invention is applied may be provided not only in the frame construction method shown in FIG. 1 but also in a framed wall construction method such as a wooden two-by-four or other construction methods requiring floor joists.

  In the joint structure 1 to which the present invention is applied, a beam member 20 such as a floor joist supporting a floor member 80 is used as the steel member 2. In the joining structure 1 to which the present invention is applied, the end 2a in the axial direction of the beam member 20 to be the steel member 2 is mainly joined to the peripheral member 3 such as the end joist 31 or the column 32. In the joining structure 1 to which the present invention is applied, as necessary, a plurality of beam members 20 are used as the steel members 2, and ends 2 a of the beam members 20 in the material axis direction X are joined to each other. You may.

  The peripheral members 3 such as the end joists 31 or the columns 32 are mainly provided on the outer periphery of the building 8 using solid wood, laminated wood, wood such as LVL or CLT. Further, for the peripheral member 3 such as the end joist 31 or the column 32, a steel frame material such as an H-section steel may be used as necessary.

  The steel member 2 has a predetermined cross-sectional shape such as a substantially H-shaped cross-section, a substantially C-shaped cross-section, or a substantially L-shaped cross-section, and is formed to extend in the material axis direction X. As the steel member 2, as shown in FIG. 2A, an H-section steel having a substantially H-shaped cross section in a cross-sectional direction with respect to the material axis direction X is used, and as shown in FIG. Alternatively, a channel steel having a substantially C-shaped cross section or a channel steel with a lip may be used. The H-section steel may be manufactured by any manufacturing method such as roll forming, assembly by arc welding, laser welding, etc., assembly by resistance welding, etc., and even if a relatively narrow I-section steel is used. Good.

  As shown in FIG. 2, when the steel member 2 is formed to have a substantially H-shaped cross section or a substantially C-shaped cross section, a pair of flanges 21 in the height direction Z and a web 24 extending in the height direction Z are formed. And In the steel member 2, an upper flange 22 extending in the width direction Y and serving as an upper flange 21 and a lower flange 23 extending in the width direction Y and serving as a lower flange 21 become side surfaces 2 b of the steel member 2. They are connected by webs 24 and are formed so as to be substantially parallel to each other.

  The steel member 2 is configured such that the upper end and the lower end of the web 24 are connected to the intermediate portion 21 a or one end 21 b in the width direction Y of the pair of flanges 21, and the upper flange 22 and the lower flange 23 are connected to the web 21. 24 are formed so as to be substantially orthogonal to each other. When the steel member 2 is formed to have a substantially L-shaped cross section, one of the upper flange 22 and the lower flange 23 is formed, and the upper end or the lower end of the web 24 is provided at one end 21 b of the flange 21. The parts are connected.

  As shown in FIG. 2 (a), when an H-section steel having a substantially H-shaped cross section is used, the steel member 2 starts from the intermediate portion 21 a of the upper flange 22 and the lower flange 23 in the width direction Y and the web 24. It is desirable to use a lightweight H-section steel on which is formed. Here, the lightweight H-section steel is an H-section steel manufactured by roll forming, assembly by laser welding, assembly by electric resistance welding, assembly by arc welding, or the like, wherein the plate thickness of the flange 21 and the web 24 is 12 mm or less. Say. At this time, the flange 21 is formed on the steel member 2 so as to protrude on both sides of the web 24 in the width direction Y.

  The light-weight H-shaped steel member 2 has, for example, a height H extending in the height direction Z of about 80 mm to 450 mm and a thickness t1 of the web 24 of about 2.3 mm to 6 mm. Further, in the lightweight H-shaped steel member 2, for example, the width B extending in the width direction Y is about 40 mm to 200 mm, and the thickness t2 of the flange 21 is about 2.3 mm to 12 mm.

  As shown in FIG. 2 (b), when a channel steel having a substantially C-shaped cross section is used, the steel member 2 starts from one end 21 b of the upper flange 22 and the lower flange 23 in the width direction Y to form a web 24. It is desirable to use a thin, lightweight section steel formed continuously by bending or the like. At this time, the flange 21 is formed on the steel member 2 so as to protrude to one side of the web 24 in the width direction Y.

  The steel member 2 made of a thin, lightweight section steel has, for example, a height dimension H extending in the height direction Z of about 89 mm to 300 mm, and a width dimension B extending in the width direction Y of about 30 mm to 50 mm. Further, in the steel member 2 of the thin and lightweight section steel, for example, the plate thickness dimension t3 of the flange 21 and the web 24 is set to about 0.8 mm to 2.2 mm.

  As shown in FIG. 3, the joining structure 1 to which the present invention is applied includes a steel member 2 extending in the axial direction X and a connecting member 4 joined to an end 2 a of the steel member 2 in the axial direction X. For example, the steel member 2 and the peripheral member 3 are provided at a joining position where the steel member 2 and the peripheral member 3 are substantially orthogonal to each other.

  The connecting member 4 has a vertical plate 41 which comes into contact with the web 24 which becomes the side surface 2 b of the steel member 2, and contacts the side surface 30 of the peripheral member 3 which is substantially orthogonal to the steel member 2 as necessary. A back plate 40 to be contacted is formed. Here, when the back plate 40 is formed, for example, the vertical plate 41 and the back plate 40 are formed substantially orthogonal to each other, and each of the connection members 4 is formed in a substantially flat plate shape. It is attached to the side surface 30 of the member 3 by pin joining or bolt joining.

  For example, as shown in FIG. 4A, when the rear plate 40 is formed to extend on both sides of the vertical plate 41 in the width direction Y, welding is performed so that the vertical plate 41 is substantially orthogonal to the rear plate 40. Installed with. Further, as shown in FIG. 4B, when the rear plate 40 is formed to extend only to one side of the vertical plate 41 in the width direction Y, the vertical plate is continuously formed from the rear plate 40 by bending or the like. 41 may be formed.

  As shown in FIG. 5, the vertical plate 41 protrudes from the side surface 30 of the peripheral member 3 in the material axis direction X so as to be along the web 24 serving as the side surface 2b of the steel member 2 and has a predetermined height in the height direction Z. And is formed with a stretching length h. The vertical plate 41 is formed such that both side surfaces in the width direction Y are substantially flat, and the main insertion holes 5 are formed through the vertical plate 41 in the plate thickness direction.

  The vertical plate 41 has a sub-insertion hole 6 formed at a position different from the main insertion hole 5 in the material axis direction X and the height direction Z, in which the vertical plate 41 penetrates in the thickness direction. Each of the main insertion hole 5 and the sub-insertion hole 6 of the vertical plate 41 is made to penetrate the vertical plate 41 in the plate thickness direction, so that both sides of the vertical plate 41 are continuous in the width direction Y and substantially circular or substantially continuous. It is formed in a rectangular shape or the like.

  The main insertion hole 5 of the vertical plate 41 is formed mainly at a position substantially at the center of the vertical plate 41 in the material axis direction X and the height direction Z. It is particularly desirable that the main insertion hole 5 of the vertical plate 41 is formed only at one position of the vertical plate 41, but it may be formed at a plurality of positions of the vertical plate 41 as needed.

  The sub insertion hole 6 of the vertical plate 41 is formed mainly at a position along the outer periphery of the vertical plate 41 in the material axis direction X and the height direction Z. The sub-insertion holes 6 of the vertical plate 41 are formed at a plurality of positions of the vertical plate 41, in particular, when the sub-insertion holes 6 are formed in the web 24 of the steel member 2 as shown in FIG. The vertical insertion hole 6 may be formed in only one position of the vertical plate 41 or the vertical insertion plate 6 may not be formed in the vertical plate 41.

  The steel member 2 is formed in a substantially flat shape with a web 24 serving as the side surface 2b of the steel member 2 extending in the material axis direction X and the height direction Z. The web 24 serving as the side surface 2b of the steel member 2 is formed to extend in the height direction Z with a height dimension larger than the extension length h of the vertical plate 41, and the web 24 serving as the side surface 2b of the steel member 2 is formed. Is formed in the thickness direction to form a main insertion hole 5.

  The web 24 serving as the side surface 2b of the steel member 2 is located at a position different from the main insertion hole 5 in the material axis direction X and the height direction Z when the sub-insertion hole 6 is not formed in the vertical plate 41 of the connection member 4. , The sub-insertion hole 6 which penetrates the web 24 in the thickness direction is formed. Each of the main insertion hole 5 and the sub-insertion hole 6 of the steel member 2 is made to penetrate the web 24 in the thickness direction, so that both sides of the web 24 are continuously continuous in the width direction Y and substantially circular or substantially rectangular. It is formed in a shape or the like.

  When the vertical plate 41 is in contact with the web 24 that is to be the side surface 2b of the steel member 2, the sub-insertion hole 6 of the steel member 2 is mainly used for the vertical plate 41 in the material axis direction X and the height direction Z. Is formed at a position corresponding to the outer periphery of. The sub-insertion holes 6 of the steel member 2 are formed at a plurality of locations on the web 24. However, as shown in FIG. 5, when the sub-insertion holes 6 are formed in the vertical plate 41 of the connection member 4, the web The sub-insertion hole 6 may not be formed in only one location of the web 24 or in the web 24.

  The main insertion hole 5 of the steel member 2 is formed mainly at a position which is substantially at the center of the web 24 in the height direction Z. The main insertion hole 5 of the steel member 2 is formed at only one position of the web 24 by aligning the main insertion hole 5 with the main insertion hole 5 of the vertical plate 41 in the material axis direction X and the height direction Z. However, if necessary, it may be formed at a plurality of locations on the web 24.

  As shown in FIGS. 5 and 6, the sub insertion hole 6 is formed by a main insertion hole 5 formed in the side surface 2 b of the steel member 2 and a main insertion hole 5 formed in the vertical plate 41 of the connection member 4. Small diameter. In particular, when the sub-insertion hole 6 is formed at a plurality of locations of the web 24 or the vertical plate 41, the main insertion hole 5 of the side surface 2 b of the steel member 2 or the main insertion hole of the vertical plate 41 of the connection member 4. 5, four or more, for example, at positions spaced apart in four directions in the material axis direction X and the height direction Z.

  It is desirable that the separation distance between the main insertion hole 5 and the sub insertion hole 6 of the sub insertion hole 6 is increased. At this time, the sub-insertion hole 6 is, for example, larger than the inner diameter of the sub-insertion hole 6 and is separated from the outer periphery of the vertical plate 41 in the material axis direction X and the height direction Z, and is larger than the inner diameter of the main insertion hole 5. , And can be separated from the main insertion hole 5 in the material axis direction X and the height direction Z.

  The sub-insertion holes 6 are formed at a plurality of locations of the web 24 or the vertical plate 41, and when the sub-insertion holes 6 are arranged at positions separated from the main insertion holes 5 in four directions, the sub-insertion holes 6 and the position in the material axis direction X are aligned. It is desirable that they are formed differently. Further, the auxiliary insertion hole 6 is not limited to this, and may be formed not only at a position spaced apart from the main insertion hole 5 in all directions but also at a position substantially the same as the main insertion hole 5 in the material axis direction X.

  In the joining structure 1 to which the present invention is applied, the beam member 20 to be the steel member 2 is dropped by a crane or the like from above in the height direction Z, and the beam member 20 having a substantially H-shaped cross section shown in FIG. A beam member 20 having a substantially C-shaped cross section shown in FIG. 8 is supported by the connecting member 4 at the end 2a in the material axis direction X.

  First, in the joining structure 1 to which the present invention is applied, as shown in FIGS. 7A and 8A, the beam member 20 to be the steel member 2 is dropped by a crane or the like, and The web 24 is arranged on the side of the vertical plate 41. At this time, the main insertion hole 5 of the steel member 2 and the main insertion hole 5 of the vertical plate 41 are in a state where they are aligned with each other in the material axis direction X and the height direction Z.

  Next, as shown in FIGS. 7 (b) and 8 (b), the joint structure 1 to which the present invention is applied has a main insertion hole of the steel member 2 with the beam member 20 lifted by a crane or the like. The bolt 50 is inserted continuously into the main insertion hole 5 of the vertical plate 5 and the vertical plate 41. At this time, the nut 55 is fastened to the bolt 50 inserted in the main insertion hole 5 of the steel member 2 and the main insertion hole 5 of the vertical plate 41, and the steel member 2 becomes the side surface 2b of the steel member 2. The vertical plate 41 comes into contact with the web 24.

  Finally, as shown in FIGS. 7 (c) and 8 (c), the joint structure 1 to which the present invention is applied is provided with a drill in the sub-insertion hole 6 formed in the side surface 2b of the steel member 2 or the vertical plate 41. The screw 60 is inserted, and the drill screw 60 is rotated around the axis. At this time, in the steel member 2, the side surface 2 b or the vertical plate 41 of the steel member 2 in which the sub-insertion hole 6 is not formed is pierced by the rotation of the drill screw 60 provided in the sub-insertion hole 6, The manufacturing member 2 and the vertical plate 41 are joined.

  In the joining structure 1 to which the present invention is applied, the lower flange 23 of the beam member 20 is partially cut out in the material axis direction X, so that the beam member 20 can be easily dropped from above in the height direction Z. Then, the joining structure 1 to which the present invention is applied is inserted into the main insertion hole 5 of the steel member 2 and the main insertion hole 5 of the vertical plate 41 as shown in FIGS. 7B and 8B. By fastening the nut 55 to the bolt 50, the movement of the steel member 2 in the material axis direction X, the width direction Y, and the height direction Z is restricted.

  At this time, in the joint structure 1 to which the present invention is applied, the bolt 50 inserted into the main insertion hole 5 of the steel member 2 and the main insertion hole 5 of the vertical plate 41 is used to secure the steel member 2 in the material axis direction X and width. The movement in the direction Y and the height direction Z is restricted, and the steel member 2 is temporarily supported. As a result, the joining structure 1 to which the present invention is applied can be connected even if the vertical plate 41 of the connecting member 4 and the web 24 of the steel member 2 are temporarily supported before being joined by the drill screw 60. It is possible to increase the restraining force of the steel member 2 temporarily supported in the above.

  In addition, in the joint structure 1 to which the present invention is applied, after the steel member 2 is dropped and temporarily supported by the connecting member 4, a crane or the like is released from the temporarily supported steel member 2, and the joint member 1 is connected to another joint portion. The lifting operation of the steel member 2 by the crane or the like can be performed. As a result, in the joint structure 1 to which the present invention is applied, the crane or the like is immediately released from the steel member 2 after the steel member 2 is temporarily supported by the connection member 4, thereby lifting the steel member 2. It is possible to improve the efficiency of the lifting operation of the steel member 2 by performing the operations sequentially and efficiently.

  Here, the joining structure 1 to which the present invention is applied is, in particular, a high-strength bolt that frictionally joins the web 24 serving as the side surface 2 b of the steel member 2 to the vertical plate 41 as the bolt 50 inserted into the main insertion hole 5. Is used. As a result, in the joining structure 1 to which the present invention is applied, the web 24 of the steel member 2 and the vertical plate 41 are firmly friction-joined with the high-strength bolts, and are temporarily supported before joining these with the drill screw 60. Even in the state, the restraining force of the steel member 2 can be further increased.

  The joining structure 1 to which the present invention is applied is not limited to this, and as the bolt 50 inserted into the main insertion hole 5, a middle bolt that shear-joins the web 24 to be the side surface 2 b of the steel member 2 and the vertical plate 41 is used. May be used. As a result, the joining structure 1 to which the present invention is applied ensures that the web 24 of the steel member 2 and the vertical plate 41 are easily shear-joined with the medium bolt, thereby securing a minimum or more restraining force of the steel member 2. Meanwhile, the temporary support of the steel member 2 can be quickly performed.

  Further, as shown in FIGS. 7 (c) and 8 (c), the joining structure 1 to which the present invention is applied has a drill screw provided in the side surface 2b of the steel member 2 or the sub-insertion hole 6 of the vertical plate 41. At 60, the steel member 2 and the connecting member 4 are fully tightened by joining the steel member 2 and the vertical plate 41. At this time, the steel member 2 is provided with the drill screw 60 in the sub-insertion hole 6 of the web 24 or the vertical plate 41 in a state where the vertical plate 41 is in contact with the web 24 that becomes the side surface 2 b of the steel member 2. At the same time, the bolt 50 is inserted into the main insertion hole 5 of the web 24 and the vertical plate 41.

  As a result, in the joint structure 1 to which the present invention is applied, the web 24 of the steel member 2 and the vertical plate 41 of the connection member 4 are joined by the drill screw 60 and the bolt 50, and the steel member 2 in the material axis direction X The connecting member 4 is joined to the end 2a of the first member 2 so that the steel member 2 can be firmly supported. In addition, in the joint structure 1 to which the present invention is applied, the steel member 2 is firmly supported by the connection member 4, so that the restraining force of the steel member 2 can be improved and floor noise can be suppressed. .

  The joining structure 1 to which the present invention is applied, in particular, uses a high-strength bolt as the bolt 50 to further increase the restraining force of the steel member 2 even in the state of final fastening joined by the drill screw 60 and the high-strength bolt. It is possible to increase. Therefore, in the joint structure 1 to which the present invention is applied, even if a middle bolt is used as the bolt 50 and temporarily supported, the middle bolt is replaced with a high-strength bolt, and the drill screw 60 and the high-strength bolt are used. It is desirable to be in a tightened state.

  In the joining structure 1 to which the present invention is applied, the vertical plate 41 of the connecting member 4 is arranged in contact with the web 24 of the steel member 2, so that the width direction Y between the connecting member 4 and the steel member 2 is increased. Of the steel member 2 and the connecting member 4 can be stably joined. As shown in FIG. 8, when a beam member 20 having a substantially C-shaped cross section is used, a vertical plate is formed on the web 24 of the steel member 2 on one side of the web 24 on which the flange 21 is formed in the width direction Y. The eccentricity between the connecting member 4 and the steel member 2 is effectively suppressed by the contact of the member 41.

  In the joint structure 1 to which the present invention is applied, the connection member 4 having high manufacturing easiness only to form the opening such as the main insertion hole 5 in the vertical plate 41 and the opening such as the main insertion hole 5 are formed in the web 24. The steel member 2 can be supported by the connection member 4 by using the steel member 2 having a low working degree. As a result, the joining structure 1 to which the present invention is applied can reduce the number of parts, processing time and construction time without the need for mounting work of a cylindrical member, welding work of a gusset plate and a guide plate, etc. as in the prior art. It is possible to reduce material costs and construction costs.

  As shown in FIG. 9 (a), the joining structure 1 to which the present invention is applied is provided at a joint between the steel member 2 and the surrounding member 3, and the connecting member 4 is attached to the surrounding member 3 using wood. At the same time, the connecting member 4 is joined to the end 2a of the beam member 20 in the material axis direction X. At this time, the back plate 40 of the connection member 4 is in contact with the side surface 30 of the peripheral member 3 and is bolted or the like.

  Further, in the joint structure 1 to which the present invention is applied, as shown in FIG. 9B, an H-shaped steel beam 7 of a steel frame material may be used as the peripheral member 3. At this time, in the joint structure 1 to which the present invention is applied, the vertical plate 41 and the back plate 40 of the connection member 4 are continuously formed on substantially the same plane, and are sandwiched between the upper and lower flanges of the H-shaped steel beam 7. The back plate 40 is welded to the groove 7a, and the vertical plate 41 is joined to the end 2a of the beam member 20.

  10A, a plurality of beam members 20 are used as the steel member 2, and each of the beam members 20 has an end portion in the material axis direction X, as shown in FIG. The connection member 4 may be joined to 2a. At this time, the connection member 4 is formed in a state where a pair of vertical plates 41 are continuously formed on substantially the same plane, and each of the vertical plates 41 is in contact with each web 24 of the plurality of beam members 20. The ends 2a of the plurality of beam members 20 are connected to each other in the material axis direction X.

  As shown in FIGS. 9 and 10A, the joining structure 1 to which the present invention is applied is a case where the end 2a of the steel member 2 is joined to the surrounding member 3 using the wood or the H-shaped steel beam 7. Also, it can be used in any case where the end 2a of the steel member 2 to be the plurality of beam members 20 is joined. In any case, in the joining structure 1 to which the present invention is applied, the end 2 a of the steel member 2 in the axial direction X is joined to the vertical plate 41 of the connecting member 4 with the drill screw 60 and the bolt 50. Can be.

  At this time, in the joining structure 1 to which the present invention is applied, the end 2a of the steel member 2 and the vertical plate 41 of the connecting member 4 are joined together by the drill screw 60 and the bolt 50. As a result, the joint structure 1 to which the present invention is applied is combined with the drill screw 60 and the bolt 50 in a composite manner, so that reliable joining with the bolt 50 such as a high-strength bolt and quick joining with the drill screw 60 are achieved. , It is possible to achieve both reliability and quickness. Here, the bolt diameter of the high-strength bolt is about 12 mm or more, and the screw diameter of the drill screw 60 is about 8 mm or less.

  In addition, the joint structure 1 to which the present invention is applied uses the reliable joining with the bolts 50 such as high-strength bolts and the rapid joining with the drill screw 60 in combination, so that the steel member 2 is formed with the bolts 50 such as high-strength bolts. , A predetermined number of drill screws 60 can be quickly provided. Thereby, the joint structure 1 to which the present invention is applied is compositely joined by the drill screw 60 and the bolt 50, so that a predetermined number of drill screws 60 can be quickly provided from only one side in the width direction Y. Thus, the final tightening operation using the drill screw 60 can be efficiently performed.

  In addition, in the joint structure 1 to which the present invention is applied, the bolt 50 such as a high-strength bolt and the drill screw 60 have different member proof strengths. Thereby, simultaneous breakage of the drill screw 60 and the bolt 50 can be avoided. As a result, the joint structure 1 to which the present invention is applied has a stable joint between the steel member 2 and the connecting member 4 by avoiding simultaneous fracture by making the member strength of the drill screw 60 and the bolt 50 different from each other and avoiding simultaneous fracture. Can be realized.

  In addition, in the joint structure 1 to which the present invention is applied, since the sub-insertion holes 6 formed at a plurality of locations are arranged at positions separated from the main insertion hole 5 in four directions, the bolt 50 such as a high-strength bolt and the drill 50 are drilled. The screws 60 are arranged in a well-balanced manner. Thereby, in the joint structure 1 to which the present invention is applied, the plurality of drill screws 60 are spaced from the bolt 50 and are arranged in a well-balanced manner, so that the bending moment is efficiently shared between the plurality of drill screws 60 and the bolt 50. Becomes possible.

  In the joining structure 1 to which the present invention is applied, the main insertion hole 5 and the sub insertion hole 6 are formed at different positions in the material axis direction X, so that the web 24 or the vertical plate 41 has the material insertion in the material axis direction X. Cross section loss can be suppressed. In the joining structure 1 to which the present invention is applied, in particular, the degree of processing of the steel member 2 and the connection member 4 is reduced by forming the sub-insertion hole 6 in only one of the web 24 and the vertical plate 41. At the same time, the cross-sectional defect of one of the web 24 and the vertical plate 41 is suppressed.

  In addition, in the joining structure 1 to which the present invention is applied, since the sub-insertion hole 6 is formed in the web 24 or the vertical plate 41 in advance, the drill screw 60 can be provided at a predetermined position where the sub-insertion hole 6 is formed. . Thus, in the joint structure 1 to which the present invention is applied, the drill screw 60 is provided by easy positioning using the sub through hole 6 serving as the leading hole as a guide. It can be implemented efficiently.

  Here, as shown in FIG. 10 (b), the conventional general beam end joining structure 9, when the joining plate 91 is friction-joined only with the high-strength bolts 50, is used for each beam end 90. Therefore, it was necessary to provide the bolts 50 at at least two places. Therefore, in the conventional general beam end joining structure 9, when a small number of bolts 50 are provided at about two places, the connection is lacking in balance, while when a large number of bolts 50 are provided, excessive strength is imparted. Cost.

  On the other hand, in the joint structure 1 to which the present invention is applied, as shown in FIG. 10A, for example, even if the bolt 50 such as a high-strength bolt is provided only at one place, the drill screw 60 and the bolt By using in combination with 50, stable joining of the plurality of beam members 20 can be realized. As a result, the bonding structure 1 to which the present invention is applied can realize stable bonding even if the bolts 50 are provided only at one place, and thus achieves a well-balanced connection and secures the required strength simultaneously with the minimum number of bolts 50. As a result, material costs and construction costs can be reduced.

  The joining structure 1 to which the present invention is applied mainly includes a steel member 2 having a span length of about 3 m to 4 m in the axial direction X and a medium to large span steel member 2 having a span length of about 5 m to more than 8 m. Can also be applied. At this time, the joining structure 1 to which the present invention is applied is, in particular, as shown in FIG. 2, by using a steel member 2 of a lightweight H-section steel or a thin-plate lightweight section steel that is lighter than a conventional H-section steel. The lifting operation of the steel member 2 can be easily performed.

  As described above, the example of the embodiment of the present invention has been described in detail. However, each of the above-described embodiments is merely an example of the embodiment for carrying out the present invention. The scope should not be construed as limiting.

1: Joining structure 2: Steel member 2a: End 2b: Side surface 20 of steel member: Beam member 21: Flange 21a: Intermediate portion 21b: One end 22: Upper flange 23: Lower flange 24: Web 3: Peripheral member 30: side surface 31 of peripheral member: end joist 32: pillar 4: connecting member 40: rear plate 41: vertical plate 5: main insertion hole 50: bolt 55: nut 6: sub insertion hole 60: drill screw 7: H-shaped steel Beam 7a: Groove 8: Building 80: Floor material X: Material axis direction Y: Width direction Z: Height direction

Claims (5)

A joining structure for joining the ends of the steel member,
A steel member extending in the axial direction with a predetermined cross-sectional shape, and a connecting member joined to the axial end of the steel member,
The connection member has a vertical plate that is in contact with a side surface of the steel member, and a main insertion hole that penetrates the vertical plate in a plate thickness direction is formed,
The steel member has a main insertion hole formed by penetrating the side surface in the plate thickness direction, and penetrates the side surface or the vertical plate in the plate thickness direction in a state where the vertical plate is in contact with the side surface. A drill screw is provided in the sub insertion hole that has been made, and a bolt is inserted into the main insertion hole of the side plate and the main insertion hole of the vertical plate ,
The sub-insertion hole is formed at a plurality of locations with a smaller diameter than the main insertion hole of the side surface and the main insertion hole of the vertical plate, and is formed at four sides from the main insertion hole of the side surface or the main insertion hole of the vertical plate. A joining structure characterized by being arranged at a position spaced apart from the other. As the steel member, a beam member on which a flange and a web are formed is used, and the connection member is attached to a peripheral member using wood or an H-shaped steel beam. The joint structure according to claim 1, wherein the connecting member is joined to the portion. The said steel member uses the several beam member in which the flange and the web were formed, and the said connection member is joined to the edge part of the axial direction of each said beam member. The joint structure as described. The bolt, the side surface and the vertical plate and the friction bonding is to high strength bolt, or any one of claims 1-3, characterized in that the bolt is used in which shearing joining said sides and said vertical plate 2. The joint structure according to claim 1. The steel member has a pair of flanges in the height direction and a web extending in the height direction and serving as the side surface, and the web is formed at a middle portion in the width direction of the flange. The joining structure according to any one of claims 1 to 4 , wherein a shaped steel or a thin, lightweight shaped steel in which the web is formed from one end in the width direction of the flange is used.

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