JP6351471B2 - Connected structure - Google Patents

Description

  The present invention relates to a connecting structure for integrating members or members and various hardware in various wooden structures including a wooden building.

  Wooden structures in recent years often use various hardware for connecting members in order to ensure earthquake resistance. In a large wooden building using laminated wood, various hardware is indispensable for connecting the members. There are various types of such hardware depending on applications, and an example thereof is a lag screw. A lag screw is a columnar shape embedded in a member, and a spiral protrusion is provided on a side peripheral surface thereof, and a screw is provided at an end portion. In addition to being firmly integrated with the member by the protrusion, it can be connected to another member using a screw. In addition, a hozo shaft etc. can be mentioned as an example of the hardware similar to a lag screw.

  As for the connection of members using lag screws, various technical developments are in progress, and Patent Document 1 described below can be cited as an example. In this document, in order to connect two members such as a column and a beam, a joining structure using a lag screw bolt and a tension bolt (stud bolt) is disclosed. One member is embedded with a lag screw bolt, and the other member In this case, a through hole into which the tension bolt is inserted and a notch that exposes the tip of the tension bolt are processed. The through-holes are aligned concentrically with the lag screw bolts, and the notch is processed with a slight distance from the contact part of the two members. Then, when the lag screw bolt and the tension bolt are screwed together and the nut is screwed onto the tip of the tension bolt exposed at the notch and tightened, the two members are drawn and connected.

  Next, as an example of a technique for connecting two members without using a lag screw, Patent Document 2 described below can be cited. In this document, a plate-like member sandwiched between the boundaries of two members to be connected and an insertion member that is orthogonal to the plate-like member and enters the member are filled with an adhesive in the gap between the insertion member and the member. And the joining structure which unifies two members is disclosed. By fixing the insertion member with an adhesive, the two members are rigidly joined and the wooden ramen structure can be realized. In addition, the plate-like member can prevent the two members from being displaced or squeezed.

JP 2000-265553 A JP-A-2005-98036

  The lag screw is widely used in places where two members are firmly connected, but in recent years, with the improvement of seismic resistance and the increase in size of the member, the load resistance required for one lag screw has increased. It is increasing. For this reason, the lag screw is becoming longer and larger in diameter, but with such an increase in length, it is necessary to apply a very large torque when screwing. As a result, various troubles such as breakage of members and failure of the drive device are caused.

  Therefore, there is a limit to increasing the length and diameter of the lag screw, and it is necessary to introduce another method to increase the load resistance. Note that, as in Patent Document 2, a method in which a bar is inserted so as to penetrate through two members and an adhesive is filled in the gap between the bar and the member increases the load resistance without difficulty by increasing the length of the bar. be able to. However, it is difficult to confirm the state of filling of the adhesive by visual observation, and the deterioration with the passage of time is expected, and there is a possibility that the reliability remains unclear.

  As a hardware for connecting the two members, a hozo shaft can be cited in addition to a lag screw. The hozo shaft is embedded so as to penetrate the two members, and a drift pin is driven from the side of the member toward the hozo shaft to connect the two members. In order to increase the load resistance of the hozo shaft, it is only necessary to lengthen the hozo shaft and increase the number of drift pins. However, the drift pins are aligned along the longitudinal direction of the hozo shaft. Therefore, when cracks occur along the grain, most of the drift pins loosen at the same time, and the strength decreases at a stretch, which may lead to rapid destruction.

  The present invention has been developed based on such a situation, and aims to provide a connection structure capable of increasing the load resistance without increasing the length of a lag screw, a hozo shaft, etc. in various wooden structures including a wooden building. .

The invention according to claim 1 for solving the above problem is a connection structure that draws and integrates one material and the other material, embedded in the one material and integrated with the one material, Using the joining means for pulling the other material and the embedded shaft, and a plate sandwiched between the one material and the other material, the one material is provided with a pilot hole for embedding the embedded shaft, joining means includes a female screw provided on one end surface of the buried shaft and fastening bolt that is screwed thereto, consist, on the plate is provided with a bore for inserting the shaft portion of the fastening bolt, the plate Is a connecting structure characterized in that one end surface of the embedded shaft is brought into contact with the plate in order to prevent the embedded shaft from being pulled out by being attached to the one material with an adhesive .

The invention according to claim 2 is a connection structure in which one material and the other material are pulled together to be integrated, the embedded shaft embedded in the one material and integrated with the one material, the other material and the embedded shaft. using a bonding means to attract, and a plate for sandwiching the boundary between said other member and said one member, wherein the one member is provided with a pilot hole for embedding the embedding axis, said joining means, the other member becomes a female screw which is integral, from a fastening bolt that is screwed to the contrary, the plate is a bore for inserting the shaft portion of the fastening bolt is provided, on the buried shaft, the fastening bolt A through hole for inserting a shaft portion is provided, the plate is attached to the one material with an adhesive , and one end surface of the embedded shaft is in contact with the plate to prevent the embedded shaft from being pulled out. Connecting structure characterized by It is.

The invention according to claim 2 differs from the invention according to claim 1 in the structure of the joining means. In both claims, the joining means is constituted by a joining bolt and a female screw, but the female screw of claim 1 is provided on one end surface of an embedded shaft embedded in one material. On the other hand, the female screw of claim 2 is provided not on the embedded shaft but on the lag screw embedded in the other material. Therefore, in Claim 2, in order to insert the axial part of a joining bolt, a through-hole is provided in a buried shaft.

  The present invention is for firmly installing pillars, beams, etc., when connecting wood such as foundation and pillar, or when one is wood and the other is various hardware, such as pillars and column base hardware There is also. In addition, the present invention assumes use in various places of the tree structure, and the two elements to be connected are referred to as one material and the other material for convenience. On the other hand, the material is limited to wood, but the other material may be various kinds of hardware besides wood.

  The embedded shaft is a metal rod embedded in the end face or side surface of one material, and is assumed to be integrated with one material by some means. Specific examples of the buried shaft include a lag screw, a deformed rod, and a hozo shaft. These are widely used in wooden construction, and the lag screw has a spiral ridge protruding from its side peripheral surface, and the ridge bites into the member and is fixed in the member. The deformed rod is used in the glue-in rod method, and is fixed in the member with an adhesive. The hozo shaft is formed with a hole penetrating the side peripheral surface thereof, and is fixed in the member by driving a drift pin or the like into the hole.

  In order to embed the embedded shaft, a pilot hole is processed in advance in one material. The pilot hole starts from the contact surface between the one material and the other material, ensures an extension for embedding the entire embedded shaft, and has an appropriate inner diameter according to the type of the embedded shaft. In addition, in order to ensure intensity | strength, in order to ensure intensity | strength, it is assumed that multiple embedding is carried out in the contact surface of one material and the other material, In that case, a plurality of pilot holes are processed. Further, when a deformed rod is used as an embedded shaft, an injection hole reaching the pilot hole may be processed in order to supply an adhesive. In addition, when a hozo shaft is used, in order to drive a drift pin, a pin hole intersecting with the pilot hole is processed.

The joining means plays a role of pulling the buried shaft held in one material to the other material and connecting the one material and the other material, and its substance is composed of a joining bolt and a female screw . The joining bolt according to the first aspect of the invention is inserted from the other material toward the embedded shaft. Therefore, a female screw is provided on the rear end surface exposed from the pilot hole in both end faces of the buried shaft, and a portion for receiving the head of the joining bolt is provided on the other material. However, in the invention according to claim 2 , conversely, the joining bolt is inserted from one material to the other material. In that case, a through-hole is provided in the center of the buried shaft, and a joining bolt is inserted from here toward the other material side.

  Considering the use of joining bolts, the other material is often embedded with a lag screw, a deformed rod or the like concentric with the embedded shaft. These are provided with a through-hole for inserting the shaft portion of the joining bolt or a female screw for screwing with the joining bolt depending on the relationship with the adjacent buried shaft. Thus, by embedding a lag screw or the like in the other material, deformation of the other material can be prevented. When the other material is various hardware, it is not necessary to embed a lag screw or the like, but a hole or a female screw is provided at a position that is concentric with the embedded shaft.

The plate is a simple steel plate, sandwiched between the tightly attached one material and the other material, and attached to the one material. In addition to the case where the size of the plate is substantially the same as the contact surface between the one material and the other material, the plate may be smaller than the contact surface and embedded in the one material or the other material. In that case, a step is provided in any member. Further, the plate is brought into surface contact with the end surface of the embedded shaft embedded in the one material. Therefore, the plate is provided with a medium hole for passing the shaft portion of the joining bolt .

Adhesive is used to attach the plate to one material. It is necessary that the plate is brought into surface contact with one material and the both are firmly integrated. Therefore, an adhesive is applied to the boundary between the plate and the one material .

  In this way, when one material and the plate are integrated and one end surface of the buried shaft is brought into contact with the plate, if a pulling load acts on the buried shaft due to some external force, this is transmitted to the plate, and this is also the plate. A part of the load is received and the burden on the buried shaft is reduced. As a result, the load resistance required for the embedded shaft can be reduced, and the length of the embedded shaft can be avoided. In addition, the reliability of the element is improved because the element that receives the load is duplicated. In addition, by attaching the plate by bonding or the like, the deformation of the surrounding one material can be suppressed and cracking along the grain can be prevented.

  The present invention is supposed to be used everywhere, and on the premise of embedding an embedded shaft in one material, other elements can be freely determined, and one material or the other material is limited to a specific member. There is nothing. In addition, the load resistance of both the one material and the other material can be increased if the embedded shaft and the plate are incorporated on the other material side as well as the one material.

As in the first and second aspects of the invention, in the connection structure between one material and the other material, an embedded shaft is embedded in one material, a plate is arranged so as to cover it, and the plate is further bonded to one material By attaching, when the load which separates one material and the other material acts, the load is received by both the embedded shaft and the plate, and the load acting on the embedded shaft is suppressed. Therefore, the load resistance can be increased without increasing the length of the buried shaft such as the lag screw or the hozo shaft.

  Furthermore, in the present invention, since the load is received by the two elements of the embedded shaft and the plate, even if one function is deteriorated, the soundness of the connection structure can be maintained and the reliability can be improved if there is no problem in the other. Further, by attaching the plate to one material by bonding or the like, it is possible to suppress deformation of the one material around the plate and prevent cracks from occurring along the grain.

It is a specific example of the connection structure by this invention, and is a perspective view which shows the connection location of the foundation and pillar which comprise wooden construction. It is the perspective view and longitudinal cross-sectional view which show the state which connected the pillar and base of FIG. 1 is a perspective view showing a connecting structure between a pillar and a base, but a deformed rod is used as an embedded shaft, and the shape of the plate is also different. It is the perspective view and longitudinal cross-sectional view which show the state which connected the pillar and base of FIG. It is a perspective view which shows the connection structure which installs a column on a column base metal with one material being a column and the other material being a column base metal. It is the perspective view and longitudinal cross-sectional view which show the state which connected the pillar of FIG. It is a perspective view showing a connection structure in which one material is a column and the other material is a beam and they are integrated in an L shape. It is the perspective view and longitudinal cross-sectional view which show the state which connected the pillar and beam of FIG. FIG. 5 is a perspective view showing a connection structure in which one material is a column and the other material is a column base metal, and a column is mounted on the column base metal and a male screw protrudes from the lower end surface of the embedded shaft. It is the perspective view and longitudinal cross-sectional view which show the state which connected the pillar of FIG.

  FIG. 1 is a specific example of a connection structure according to the present invention, and shows a connection portion between a base 51 and a pillar 41 constituting a wooden building. The base 51 extends horizontally, and the column 41 is placed on the upper surface of the base 51, and both are pulled by a single joining bolt 38 and connected in a T shape. And in order to make the joining bolt 38 function effectively, the base 51 is embedded with the lag screw 26, and the column 41 is embedded with the embedded shaft 21. In this figure, the pillar 41 for embedding the embedded shaft 21 is one material, and the base 51 is the other material.

  As for the embedded shaft 21 embedded in the column 41, a lag screw is used as in the base 51 side. Both the buried shaft 21 and the lag screw 26 are cylindrical metal rods, and the protrusions 33 extending in a spiral shape are formed on the side peripheral surfaces thereof, and a tool is hung on one end surface when screwing. Therefore, a hexagonal head 32 is formed. The protruding shaft 33 bites into the pillar 41 and the base 51, so that the embedded shaft 21 and the lag screw 26 are firmly held, and the connecting shaft 38 is used to pull the embedded shaft 21 and the lag screw 26 together. To do. In this figure, the joining bolt 38 is inserted from the lower surface of the base 51, a through hole 36 is formed in the center of the lag screw 26 on the base 51 side, and the lower end portion center of the embedded shaft 21 on the column 41 side is formed. Is formed with a female screw 35.

  In order to embed the lag screw 26, a through hole 55 penetrating vertically is formed in the base 51 in advance. Also, the pilot hole 45 is processed in advance in order to embed the entire embedded shaft 21 in the center of the lower surface of the column 41. The through hole 55 and the pilot hole 45 are machined to a position where both are concentrically aligned based on the design drawing, and the inner diameter is such that only the protrusion 33 bites into the inside. In addition, the lag screw 26 on the base 51 side is screwed from above the through hole 55, and finally, the upper surfaces of the lag screw 26 and the base 51 are aligned without any step.

  The plate 11 is a metal disk and is sandwiched between the pillar 41 and the base 51. However, the plate 11 is smaller than the cross section of the column 41 and is embedded in a step 46 processed on the lower surface of the column 41. After the column 41 and the base 51 are connected, the plate 11 cannot be visually recognized at all. Excellent in terms. The depth of the step 46 is the same as the thickness of the plate 11. In addition, a center hole 16 is provided at the center of the plate 11 so as to allow the shaft portion of the joining bolt 38 to pass therethrough.

  It is assumed that the plate 11 is brought into contact with both the upper end surface of the lag screw 26 and the lower end surface of the embedded shaft 21 and is sandwiched from above and below. Further, the plate 11 is not only sandwiched between the column 41 and the base 51, but is attached to the step 46 using the adhesive 19. As a result, when a load that separates the pillar 41 and the base 51 is applied after construction, this is received by both the embedded shaft 21 and the plate 11, and the load acting on the embedded shaft 21 is reduced.

  At the time of construction, the embedded shaft 21 and the lag screw 26 are embedded at the lumbering stage, and the plate 11 is attached to the step 46 with the adhesive 19. Thereafter, the pillar 41 and the base 51 are transported to the site, and the joining bolt 38 is inserted from the lower surface of the base 51, and the pillar 41 is placed on the upper surface of the base 51 while adjusting the position so that the center of the pillar 41 is aligned with the through hole 55. And if the front-end | tip of the joining bolt 38 is inserted and tightened from the inner hole 16 to the internal thread 35, the embedded shaft 21 and the lag screw 26 will be drawn near, and the pillar 41 and the base 51 will be connected.

  FIG. 2 shows a state in which the pillar 41 and the base 51 of FIG. 1 are connected. The column 41 stands upright from the upper surface of the base 51, and both are connected via the embedded shaft 21, the lag screw 26, and the joining bolt 38. The plate 11 is completely embedded in the step 46 and is further integrated with the pillar 41 by the adhesive 19. Note that both the lower end surface of the embedded shaft 21 and the upper end surface of the lag screw 26 are in contact with the plate 11, and the vertical load acting on the embedded shaft 21 and the lag screw 26 is inevitably applied to the plate 11. Communicated. As a result, the load resistance required for the buried shaft 21 can be reduced, and the length of the buried shaft 21 is not required.

  The lower part of the column 41 is strengthened by the adhesive 19 and can restrain its expansion. Therefore, it is easy to prevent cracks due to drying and maintain the soundness of the pillars 41. In addition, if the adhesive 19 is applied also to the boundary between the base 51 and the plate 11, the column 41 and the base 51 can be connected only by the plate 11, and the connection structure can be further strengthened. However, the adhesion between the base 51 and the plate 11 cannot be carried out at the lumbering stage, and the labor during construction increases.

  3 is a connection structure of the column 41 and the base 51 as in FIG. 1, except that a deformed rod is used as the embedded shaft 22 and the shape of the plate 12 is different. Since the embedded shaft 22 is fixed in the prepared hole 45 of the column 41 with the adhesive 19, ribs 34 extending in the circumferential direction are formed at predetermined intervals on the side peripheral surface thereof. However, a part of the rib 34 is interrupted in order to secure the flow path of the adhesive 19. Further, the inner diameter of the pilot hole 45 processed into the column 41 is aligned with the outer diameter of the rib 34 in order to ensure concentricity. Further, an injection hole 47 communicating with the outside is processed in the vicinity of the tip of the pilot hole 45 as a flow path for the adhesive 19 and the air.

  The deformed rod 27 is inserted into the through hole 55 of the base 51. The deformed rod 27 is fixed to the base 51 with the adhesive 19 in the same manner as the embedded shaft 22. The adhesive 19 is filled from one end of the through hole 55 and reaches the other end. In addition, a female screw 35 is provided at the center of the lower end portion of the embedded shaft 22, a through hole 36 is provided in the deformed rod 27, and the joining bolt 38 is inserted from the lower surface of the base 51 in the same manner as in FIG.

  The plate 12 is the same size as the cross section of the column 41 and is sandwiched between the column 41 and the base 51 so that the column 41 and the base 51 do not come into direct contact with each other. The plate 12 is attached to the lower surface of the column 41 via the screw nails 20. Therefore, four holes 17 are provided in the plate 12 in order to insert the screw nails 20. Furthermore, in order to accommodate the head of the screw nail 20, a counterbore hole 18 having an enlarged cross section is provided on the back side of the punch hole 17. In addition, a center hole 16 is provided in the center of the plate 12 in order to insert the shaft portion of the joining bolt 38.

  FIG. 4 shows a state where the pillar 41 and the base 51 of FIG. 3 are connected. The column 41 stands upright from the upper surface of the base 51, and both are connected via the embedded shaft 22, the deformed rod 27, and the joining bolt 38. The buried shaft 22 and the deformed rod 27 are completely integrated with the column 41 and the base 51 by the filled adhesive 19. The plate 12 is attached to the column 41 with the screw nails 20 and is sandwiched between the embedded shaft 22 and the deformed rod 27. Therefore, a load that pulls out the embedded shaft 22 is also transmitted to the plate 12, so that the load resistance required for the embedded shaft 22 can be reduced, and the embedded shaft 22 does not need to be lengthened.

  At the time of construction, first, the pilot hole 45 and the injection hole 47 are processed in the column 41, the through hole 55 is processed in the base 51, the embedded shaft 22 is inserted into the lower hole 45, and the deformed rod 27 is inserted into the through hole 55. Thereafter, the adhesive 19 is filled in each. Then, if it can be confirmed that the filled adhesive 19 has reached the back side, the positions of the embedded shaft 22 and the deformed rod 27 are finely adjusted, and the adhesive 19 is dried. After drying, the plate 12 is attached to the lower surface of the pillar 41 with the screw nails 20, and these are transported to the site. In the field, when the pillar 41 and the base 51 are brought close to each other and the joining bolt 38 is inserted and tightened, the pillar 41 and the base 51 are connected.

  FIG. 5 shows a connection structure in which one material is a column 42 and the other material is a column base metal 52, and the column 42 is installed on the column base metal 52. In the present invention, it is not necessary that both the one material and the other material are wood, and various hardware can be used for the other material. In this figure, the other material is a column base metal 52, which is a box shape in which a lower plate 58 and an upper plate 56 are connected by left and right upright plates 57, and these are integrated by welding. The lower plate 58 is placed on the upper surface of the foundation concrete 61 and further has large holes 60 at two locations for inserting the anchor bolts 62 protruding from the foundation concrete 61. The upper plate 56 is provided with small holes 59 at two locations for inserting the shaft portion of the joining bolt 38.

  In this figure, two shafts are used as the embedded shaft 23 embedded in the column 42. The hozo-shaft is a metal cylindrical rod that is embedded in a pilot hole 45 extending from the lower surface of the column 42. The prepared hole 45 has an inner diameter into which the embedded shaft 23 can be inserted without loosening, and the embedded embedded shaft 23 is integrated with the column 42 by a drift pin 69. Therefore, side holes 37 are provided at two locations on the side peripheral surface of the embedded shaft 23, and pin holes 49 are processed on the side surfaces of the columns 42 at positions that are concentric with the side holes 37. The pin hole 49 has an inner diameter that can hold the drift pin 69 without looseness. An internal thread 35 is provided at the center of the lower end surface of the embedded shaft 23 so that it can be screwed with the joining bolt 38.

  The plate 13 is sandwiched between the column 42 and the column base metal 52, attached to the column 42 with the adhesive 19, and brought into contact with the lower end surface of the embedded shaft 23. Therefore, the load for pulling out the buried shaft 23 is also transmitted to the plate 13, and the load acting on the buried shaft 23 and the drift pin 69 is reduced, so that the length of the buried shaft 23 and the increase in the number of drift pins 69 are not required. . In addition, in order to insert the axial part of the joining bolt 38 in the plate 13, the middle hole 16 is provided in two places.

  When installing the column base 52 on the foundation concrete 61, the tip of the anchor bolt 62 is inserted into the large hole 60, and the large washer 63, the small washer 64, and the bottom nut 65 are sequentially inserted to finely adjust the position of the column base metal 52. After that, the bottom nut 65 is completely tightened. The large hole 60 is for absorbing the position error of the anchor bolt 62, and the large washer 63 closes the large hole 60 and stabilizes the bottom nut 65.

  FIG. 6 shows a state where the column 42 and the column base metal 52 of FIG. 5 are connected. The embedded shaft 23 is embedded in the column 42, and both are integrated by a drift pin 69 that penetrates the side surface of the column 42. Further, the joining bolt 38 inserted from the upper plate 56 of the column base metal 52 is screwed into the female screw 35 of the embedded shaft 23 and draws the column 42 toward the column base metal 52. However, the plate 13 is sandwiched between the columns 42 and the column base hardware 52. The plate 13 is attached to the column 42 with an adhesive 19, and the lower end surface of the embedded shaft 23 is in contact with the plate 13.

  When a horizontal load is applied to the upper part of the column 42 due to an earthquake or the like, the column 42 tends to float from the column base metal 52, and thus a tensile load is applied to the joining bolt 38. Due to this tensile load, the embedded shaft 23 tends to be pulled out from the column 42, but this is prevented by the plate 13 integrated with the column 42. Therefore, the drawing load acting on the embedded shaft 23 is suppressed, and the strength can be secured without increasing the number of driven drift pins 69. Further, the lower surface of the column 42 is restrained by the adhesive 19, and cracking of the column 42 starting from the drift pin 69 can be prevented.

  FIG. 7 shows a connecting structure in which one material is a column 43 and the other material is a beam 53, the end surface of the beam 53 is brought into contact with the upper side surface of the column 43, and these are integrated in an L shape. A lag screw is used for the embedded shaft 24 embedded in the column 43, as in FIG. However, in this structure, since the joining bolt 38 is inserted from the side surface of the column 43 toward the beam 53, the through hole 31 is provided at the center of the embedded shaft 24. Further, in order to embed the embedded shaft 24, pilot holes 45 penetrating both side surfaces are processed in two upper and lower portions on the side surface of the column 43.

The lag screw 28 is embedded in the beam 53 which is the other material at a position concentric with the embedded shaft 24. The lag screw 28 is provided with a female screw 29 at the center of one end face so that it can be screwed into the joining bolt 38. Further, a bottomed hole 66 is machined in the end face of the beam 53 in order to embed the lag screw 28. The extension of the lag screw 28 embedded in the beam 53 is increased for the purpose of improving the load resistance.

  The plate 14 is sandwiched between the column 43 and the beam 53 and has the same size as the cross section of the beam 53, and is attached to the side surface of the column 43 with the screw nails 20. The plate 14 and the embedded shaft 24 are brought into contact with each other to prevent the embedded shaft 24 from being pulled out. The plate 14 is provided with five holes 17 for inserting the screw nails 20 at one end thereof, and a counterbore hole 18 for receiving the head of the screw nails 20 is provided at one end thereof. Moreover, in order to insert the axial part of the joining bolt 38, the center hole 16 is provided in two places of the center.

  The extension of the prepared hole 45 for embedding the embedded shaft 24 is inevitably equal to the width of the column 43, and the extension of the embedded shaft 24 is also limited. However, by using the plate 14, an effect equivalent to the extension of the embedded shaft 24 can be obtained with respect to the drawing load. On the other hand, the lag screw 28 embedded in the beam 53 can be elongated as long as there is no hindrance to the embedding work, and it is not necessary to use the plate 14 dare.

FIG. 8 shows a state in which the pillar 43 and the beam 53 in FIG. 7 are connected. The embedded shaft 24 is embedded so as to penetrate the side surface of the column 43, and the lag screw 28 is embedded in the end surface of the beam 53. Then, when the tip of the joining bolt 38 is inserted into the through hole 31 exposed on the side surface of the column 43 and screwed into the female screw 29 of the lag screw 28 embedded in the beam 53, the end surface of the beam 53 becomes the side surface of the column 43. In close contact with each other, and both are connected in an L shape. The plate 14 is attached to the pillar 43 with the screw nails 20 and is in contact with the end surface of the embedded shaft 24. Therefore, a load that separates the pillar 43 and the beam 53 is received by both the embedded shaft 24 and the plate 14, and the load acting on the embedded shaft 24 is relaxed, and the reliability is improved.

  FIG. 9 shows a connecting structure in which one material is a column 41 and the other material is a column base 54, and the column 41 is mounted on the column base 54 and the male screw 30 protrudes from the lower end surface of the embedded shaft 25. ing. The embedded shaft 25 in this figure is a lag screw having a ridge 33, and a male screw 30 protrudes from the lower end surface thereof, which is inserted into the small hole 59 of the column base metal 54 through the middle hole 16 of the plate 11, The joining nut 39 is screwed to the tip. When the joining nut 39 is tightened, the embedded shaft 25 is drawn and the column 41 is installed on the column base 54. The column base metal 54 in this figure is a hollow rectangular shape, and a lower plate 58 and an upper plate 56 are connected by left and right upright plates 57, and are installed on the foundation concrete 61 with a bottom nut 65. The plate 11 is embedded in the step 46 on the lower surface of the column 41 and attached with an adhesive 19.

  FIG. 10 shows a state where the column 41 and the column base metal 54 of FIG. 9 are connected. The embedded shaft 25 is embedded in the column 41, and the male screw 30 protruding from the lower end surface penetrates the plate 11 and the upper plate 56 of the column base metal 54, and a joint nut 39 is screwed to the tip. The head 32 positioned at the lower end of the embedded shaft 25 is in contact with the plate 11, and a load that pulls out the embedded shaft 25 is smoothly transmitted to the plate 11.

  As shown in the drawings so far, in addition to the use and arrangement of the one material and the other material, there are various constituent elements such as an embedded shaft and a plate. And this invention is not necessarily limited to the form shown to each figure, In the range which can be implemented, each element can be combined freely. As an example, the plate incorporated in the lower part of the column 42 in FIG. 5 can be embedded in a step processed in two places as a disk shape as in FIG. 1 instead of a single rectangular plate.

11 Plate 12 Plate 13 Plate 14 Plate 16 Middle hole 17 Drain hole 18 Counterbore 19 Adhesive 20 Screw nail 21 Buried shaft (with lag screw and female screw)
22 Buried shaft (deformed rod)
23 Buried shaft (Hozo shaft)
24 Buried shaft (with lag screw and through hole)
25 Buried shaft (with lag screw and male screw)
26 Lag screw 27 Profile rod 28 Lag screw
29 Female thread 30 Male thread 31 Through hole (Built-in shaft side)
32 Head 33 Projection 34 Rib 35 Female thread 36 Through-hole 37 Side hole 38 Joint bolt 39 Joint nut 41 Column (one material)
42 pillars (one side)
43 pillars (one side)
45 Pilot hole 46 Step 47 Injection hole 49 Pin hole 51 Base (other material)
52 Column base hardware (other material, large size)
53 Beam (other material)
54 Column base (other material / small)
55 Through hole 56 Upper plate 57 Upright plate 58 Lower plate 59 Small hole 60 Large hole 61 Foundation concrete 62 Anchor bolt 63 Large washer 64 Small washer 65 Bottom nut 66 Bottomed hole 69 Drift pin

Claims (2)

A connecting structure that draws and integrates one material (41 or 42 ) and the other material (51 or 52 ),
It said one member (41 or 42) in the embedding and the hand member (41 or 42) and buried shaft to integrate (21 to 23),
A joining means for drawing the other material (51 or 52 ) and the buried shaft (21 to 23 );
A plate (11 to 13 ) sandwiched between the one material (41 or 42 ) and the other material (51 or 52 );
Use
The one material (41 or 42 ) is provided with a pilot hole (45) for embedding the embedded shaft (21 to 23 ),
It said joining means includes a female screw (35) provided on one end surface of the buried shaft (21 to 23), and which in screwed fastening bolt (38), consists,
The plate (11 to 13 ) is provided with a hole (16) for inserting the shaft portion of the joining bolt (38) ,
The plate (11 to 13 ) is attached to the one material (41 or 42 ) with an adhesive (19) ,
In order to prevent the embedded shaft (21 to 23 ) from being pulled out, one end surface of the embedded shaft (21 to 23) is in contact with the plate (11 to 13 ). It is a connection structure that draws and integrates one material ( 43 ) and the other material ( 53 ),
It said one member (43) in the embedding and the hand member (43) and buried shaft to integrate (24),
A joining means for pulling the other material ( 53 ) and the embedded shaft ( 24 );
A plate ( 14 ) sandwiched between the one material ( 43 ) and the other material ( 53 );
Use
The one material ( 43 ) is provided with a pilot hole (45) for embedding the embedded shaft ( 24 ),
It said joining means includes a female screw (29) which is integral with the other member (53), and which in screwed fastening bolt (38), consists,
The plate ( 14 ) is provided with a medium hole (16) for inserting the shaft portion of the joining bolt (38),
The embedded shaft ( 24 ) is provided with a through hole (31) for inserting the shaft portion of the joining bolt (38) ,
The plate ( 14 ) is attached to the one material ( 43 ) with an adhesive (19) ,
In order to prevent the embedded shaft ( 24 ) from being pulled out, one end surface of the embedded shaft (24) is in contact with the plate ( 14 ).

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