JP2012219450A - Connection structure of column using column base fitting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connection structure of a column using a column base fitting, capable of securing a large number of insertions of a locking body and a third locking body even while turning a bottom part of a column to be connected to a configuration advantageous in terms of bearing force.SOLUTION: An insertion hole 4 and a second insertion hole 5 are formed at a tenon part 3 of a column base fitting A, a tenon hole 6 for inserting the entire periphery of the tenon part 3 in a concealed state is formed at a bottom part of a column B, a locking hole 7 communicated with the insertion hole 4 and a second locking hole 8 communicated with the second insertion hole are formed on a peripheral surface of the column B, and a third locking hole 9 orthogonally disposed in a proximity or connected state to the second locking hole 8 is formed in a range which is the peripheral surface of the column B and has no tenon hole 6. When the tenon part 3 is inserted to the tenon hole 6, a locking body 10 is inserted to the insertion hole 4 and the locking hole 7, a second locking body 11 is inserted to the second locking hole 8 and the second insertion hole 5, and a third locking body 12 is inserted to the third locking hole 9.

Description

  The present invention relates to a column connecting structure using column base metal fittings.

  In order to connect the foundation and the pillar, a metal fitting called a column base metal fitting has been used conventionally (see, for example, Patent Document 1).

  Briefly explaining this Patent Document 1, an anchor bolt connecting portion for connecting to an anchor bolt protruding on a foundation is provided at a lower portion, and a support plate to be inserted into a split groove formed at a bottom portion of a column standing on the foundation is provided. The support plate is provided with a pin insertion hole that communicates with a pin locking hole provided in the pillar when the support plate is inserted into the split groove of the pillar. The column is connected to the support plate by driving a drift pin into the pin locking hole and the pin insertion hole that are communicated with each other from the side of the column to be inserted and locked.

  In addition, the support plate has a width equal to the width of the column, and the split groove at the column bottom is formed to the full width of the column and is formed on both side surfaces near the bottom (both sides of the column bottom). The side edge of the support plate is exposed from the split groove on the surface.)

  On the other hand, a column base metal fitting as in Patent Document 2 has also been implemented conventionally.

  Briefly explaining this Patent Document 2, an anchor bolt connecting portion for connecting to an anchor bolt projecting on a foundation is provided in the lower portion, and a hozo pipe inserted into a hozo hole formed in a bottom portion of a column standing on the foundation is provided in an upper portion. The hoso pipe is provided with a pin insertion hole that communicates with a pin locking hole provided in the pillar when the hoso pipe is inserted into the hoso hole of the pillar. A pillar can be connected to the ridge portion by driving a drift pin into the pin locking hole and the pin insertion hole from the side of the column to insert and lock.

JP 2002-115339 A JP 2002-294875 A

  In the case of the column base metal fitting as described in Patent Document 1, since the horizontal width of the support plate is equal to the horizontal width of the column, there is a wide range in which the drift pins can be driven, and the number of drift pins driven is sufficient. It is possible to secure and firmly connect the column, but on the other hand, to form a split groove that extends to both sides at the bottom of the column used (to split the column bottom with a split groove), this column There is concern about a drop in strength at the bottom.

  On the other hand, in the case of the column base metal fitting as in Patent Document 2, the column to be used is configured to form a hollow hole type hole that hides the entire periphery of the column pipe of the column base metal fitting without dividing the bottom portion. Even if it is a column with a small cross-sectional area, it is advantageous in terms of yield strength compared to the column used in Patent Document 1, but on the other hand, since the hozo pipe has a narrow range where the drift pin can be driven, the number of drift pins driven is increased. The column connection strength as high as that of Patent Document 1 cannot be expected.

  In view of the current state of such conventional column base metal fittings, the present invention is designed to insert a locking body such as a drift pin while the bottom of the column to be connected is configured to be advantageous in terms of strength as in Patent Document 2 above. The present invention provides a column connection structure using an epoch-making column base metal fitting that can ensure the same number as that of Patent Document 1.

  The gist of the present invention will be described with reference to the accompanying drawings.

  The column base metal A is connected and fixed to the foundation 1, and the ridge portion 3 provided on the column base metal A is inserted into the ridge hole 6 provided at the bottom of the column B, and the insertion hole 4 formed in the ridge portion 3. In the column connection structure using the column base metal fitting that connects the hoso part 3 and the column B by inserting the engagement body 10 into the engagement hole 7 formed in the column B communicating therewith. Is provided on the upper part of the metal fitting body 2 that can be connected and fixed to the foundation 1 in an upright state, and the insertion hole 4 and the hole of the insertion hole 4 are formed in the elevation part 3. The second insertion hole 5 is formed in a hole direction orthogonal to the direction, and the column B conceals the entire circumference of the column portion 3 when the column portion 3 of the column base metal A is inserted into the bottom portion. The tenon hole 6 is formed, and the second insertion hole is formed when the engagement hole 7 is communicated with the insertion hole 4 of the elevation part 3 on the peripheral surface of the column B. 5 and A second locking hole 8 is formed so as to communicate with the relief hole 6 in a hole direction perpendicular to the hole direction of the locking hole 7. A third locking hole 9 which is arranged orthogonally to the installed state and which is in the hole direction orthogonal to the hole direction of the second locking hole 8 is formed in the range where the peripheral surface of the pillar B is not provided with the above-mentioned relief hole 6. Then, the third locking body 12 inserted into the third locking hole 9 and the second locking body 11 inserted into the second locking hole 8 are arranged orthogonally in the proximity or contact state. The basal part 3 provided on the column base A is inserted into the basal hole 6 provided on the bottom of the pillar B, and the locking body 10 is inserted into the insertion hole 4 and the locking hole 7. At this time, the second locking body 11 is inserted into the communicating second locking hole 8 and the second insertion hole 5 and the third locking body 12 is inserted into the third locking hole 9. Hozo It has a structure for connecting the posts B that relates to the coupling structure of the column with a column base metal characterized by.

  In addition, the third locking hole 9 is disposed in the vicinity of or in a state of being connected at least below the second locking hole 8, and the third locking body 12 inserted into the third locking hole 9. 2. The column base bracket according to claim 1, wherein the column base bracket is arranged so as to be orthogonally disposed in a proximity or contact state below the second locking body 11 inserted into the second locking hole 8. This relates to the column connecting structure used.

  The third locking holes 9 are arranged close to or continuously above and below the second locking holes 8, and the third locking holes 9 are inserted into the upper and lower third locking holes 9. The locking body 12 is configured to be arranged orthogonally in the proximity or contact state so as to sandwich the second locking body 11 inserted into the second locking hole 8 from above and below. It relates to a column connecting structure using the column base metal fitting according to any one of Items 1 and 2.

  Further, the column base metal A is provided with the plate-shaped or square-shaped ridge portion 3 in an upright state at the upper portion of the metal fitting body 2, and a large number of the insertion holes 4 are formed in the front portion of the ridge portion 3. In addition, the second insertion hole 5 having a hole direction orthogonal to the hole direction of the insertion hole 4 is formed in the side surface portion of the ridge part 3. This relates to a column connection structure using the column base bracket described in 1.

  Further, the second locking body 11 is inserted into the second insertion hole 5 in one or both of the second insertion hole 5 and the second locking body 11 inserted into the second insertion hole 5. 5. The column connecting structure using the column base metal fitting according to claim 1, wherein a fixing means 13 capable of being inserted and fixed is provided.

  Further, the fixing means 13 is provided with a screw portion 14 in the second insertion hole 5 or the second locking body 11, and the second locking body 11 is inserted into the second insertion hole 5 and screwed. It is set as the structure fixed, It concerns on the connection structure of the pillar using the column base metal fittings of Claim 5 characterized by the above-mentioned.

  Since the present invention is configured as described above, it is possible to employ a column having a proof hole that is advantageous in terms of strength, and not only insert a locking body into the insertion hole of the horn part and the locking hole of the column, The second locking body can also be inserted into the second insertion hole of the hoso part and the second locking hole of the column to ensure high connection strength between the hoso part and the column, and in addition, within the range where there is no column holing hole Also, the third locking body can be inserted through the third locking hole to connect the column and the ridge part, so that a column that is advantageous in terms of strength is not only the locking body but also the second locking body and the third coupling. It becomes a column connection structure using an epoch-making column base metal fitting excellent in practicality that can be extremely firmly connected to the ridge portion using a stationary body.

  In the inventions of claims 2 and 3, the column can exhibit a strong proof force against an external force that tends to come off from the column base metal. In particular, in the invention of claim 3, the column is a column base. Since it is also prevented from moving downward with respect to the metal fitting, a column connecting structure using a column base metal fitting that exhibits a much higher connection strength and is extremely practical.

  In the invention according to claim 4, a large number of locking bodies can be inserted into a large number of insertion holes to connect the hoso part and the column with high connection strength. The connecting structure of the pillars using the column base metal fittings, which is more practical and capable of connecting the hoso part and the column very firmly by exhibiting the connection strength by the stationary body.

  Further, in the invention according to claim 5, since the second locking body functions reliably as a part of the side locking portion, the connection strength between the side locking portion and the column by the second locking body and the third locking body. As a result, the column connection structure using the column base metal fitting, which is extremely practical, will be further improved.

  Further, in the invention described in claim 6, it is a column connection structure using a column base metal fitting that is more practical and capable of easily inserting and fixing the second locking body into the second insertion hole.

It is a perspective view which shows the column base metal fitting of Example 1. FIG. It is a description perspective view which shows the state which tries to connect and fix the column base metal fitting of Example 1 as a foundation. FIG. 3 is an explanatory perspective view illustrating a state in which the side portion of the column base metal fitting connected and fixed to the foundation is inserted into the side hole of the column subsequent to FIG. 2. FIG. 4 is an explanatory perspective view illustrating a state where the bottom portion of the column is connected and fixed to the ridge portion of the column base metal fitting (a connected state of the column base metal fitting and the column according to the first embodiment) following FIG. 3. FIG. 5 is an explanatory front sectional view of FIG. 4. It is explanatory front sectional drawing which shows the connection state of the column base metal fitting and column of Example 2.

  An embodiment of the present invention which is considered to be suitable will be briefly described with reference to the drawings showing the operation of the present invention.

  The column B according to the present invention has, at the bottom, the above-described basal hole 6 that conceals the entire circumference of the basal portion 3 when the basal portion 3 of the columnar bracket A is inserted. That is, the bottom portion of the column B of the present embodiment has a side hole 6 that is advantageous in terms of strength as in the case of Patent Document 2 described above.

  When the bracket body 2 of the column base bracket A according to the present invention is connected and fixed to the foundation 1 and the ridge portion 3 standing on the top of the bracket body 2 is inserted into the burrow hole 6 at the bottom of the column B, the bottom of the column B Will conceal the entire circumference of the ridge part 3 and the pillar B will be erected on the foundation 1 or on the foundation installed on the foundation 1 via the column base metal A.

  At this time, when the insertion hole 4 formed in the ridge portion 3 and the locking hole 7 formed in the peripheral surface of the column B are communicated, the insertion hole 4 formed in the ridge portion 3 The second insertion hole 5 in the orthogonal hole direction and the second locking hole 8 in the hole direction orthogonal to the hole direction of the locking hole 7 formed on the peripheral surface of the column B are in communication.

  By inserting the locking body 10 into the communicating insertion hole 4 and the locking hole 7, the boss portion 3 and the column B are connected. In the present invention, the first state is in the communication state. The second locking body 11 is also inserted into the second insertion hole 5 and the second locking hole 8, and the hole direction orthogonal to the hole direction of the second locking hole 8 formed on the peripheral surface of the column B The third locking body 12 is also inserted into the third locking hole 9.

  Then, in addition to the connection strength equivalent to the conventional column connection structure using the column base metal fitting by inserting the locking body 10 into the insertion hole 4 and the locking hole 7, the insertion of the locking body 10 Since the second locking body 11 is inserted through the second locking hole 8 in a direction perpendicular to the direction, the other peripheral surface of the column B where the second locking hole 8 exists is also connected to the relief portion 3. A stronger connection strength is exhibited.

  Further, the second locking body 11 inserted into the second locking hole 8 (and the second insertion hole 5) and the third locking body 12 inserted into the third locking hole 9 are the column B In the range where there is no hole 6, they are arranged orthogonally in the proximity or abutting state. At this time, the second locking body 11 is inserted into the second insertion hole 5 of the horn portion 3, so 3, which is equivalent to inserting the third locking body 12, which is disposed orthogonally in the proximity or abutting state with respect to the second locking body 11, into the ridge portion 3. The link function will be exhibited. That is, according to the present invention, the third locking body 12 is inserted into a range where the column B substantially does not have the relief hole 6 (the range where the relief portion 3 inserted into the relief hole 6 does not exist). Since the hozo part 3 can be connected, an extremely high connection state by the locking body 10, the second locking body 11, and the third locking body 12 is realized.

  Therefore, according to the present invention, not only the locking body 10 but also the second locking body 11 and the second locking body 6 have the structure in which the bottom portion of the column B has the proof hole 6 which is advantageous in terms of strength as in the above-mentioned Patent Document 2. Since the three locking bodies 12 can be inserted and connected, the ridge portion 3 and the pillar B can be connected with a high connection strength that is higher than that of Patent Document 1 or Patent Document 2.

  Further, for example, the third locking hole 9 is disposed in the proximity or continuous state at least below the second locking hole 8, and the third locking hole 9 is inserted through the third locking hole 9. If the body 12 is arranged so as to be orthogonally disposed near or in contact with the second locking body 11 inserted through the second locking hole 8, the column B is connected to the boss portion 2. When an external force is applied to escape upward, the second locking body 11 existing above the column B prevents the third locking body 13 from moving upward. Therefore, the column B exhibits a high proof strength against an external force that tends to come off upward.

  In addition, for example, the column base metal A is provided with the plate-shaped or square-shaped ridge portion 3 in an upright state at the upper portion of the bracket main body 2, and a large number of the insertion holes 4 are formed in the front portion of the ridge portion 3. When the second insertion hole 5 is formed in the side surface portion of the relief portion 3, a large number of engaging bodies 10 are inserted into the numerous insertion holes 4 to connect the relief portion 3 and the column B with high connection strength. In this way, the connection strength by the second locking body 11 and the third locking body 12 is also exhibited, and an extremely high connection state is realized.

  Further, for example, either one or both of the second insertion hole 5 and the second engagement body 11 inserted into the second insertion hole 5, and the second engagement body in the second insertion hole 5. If the fixing means 13 capable of inserting and fixing 11 is provided, the second locking body 11 is not inserted and fixed in the second insertion hole 5 by the fixing means 13 and thus cannot be removed. Will surely function as a part of the relief portion 3.

  A specific embodiment 1 of the present invention will be described with reference to FIGS.

  In this embodiment, the column base metal A is connected and fixed to the foundation 1, and the column base metal A using the column base metal A that connects and fixes the column B in a standing state on the foundation 1 through the column base A is used. This relates to the connection structure.

  First, the column base bracket A of the present embodiment will be described. An anchor bolt connecting portion 16 that can be connected to an anchor bolt 15 protruding on the foundation 1 is provided at the lower portion of the bracket main body 2, and a column is mounted on the upper portion of the bracket main body 2. A relief portion 3 that can be inserted into a relief hole 6 provided at the bottom of B is provided.

  Specifically, the metal fitting body 2 is provided with a rectangular plate-like mounting plate portion 17 that can be placed and abutted directly on the upper surface of the foundation 1 or the upper surface of the foundation installed on the upper surface of the foundation 1 at the lower portion. A plurality of plate-like supports 22 are provided in an upright state on the top surface of the mounting plate portion 17, and the same shape as the mounting plate portion 17 is placed above the mounting plate portion 17 via the plurality of support bodies 22. The support plate 21 is supported and fixed. Further, the support plate portion 21 is supported and fixed by the plurality of support bodies 22 so as to be in parallel relation with the mounting plate portion 17, and the bottom portion of the column B is mounted on the upper surface of the support plate portion 21. Configure to get.

  Further, the metal fitting body 2 has a shape in which the ridge portion 3 having a flat plate shape having a plate surface in a direction orthogonal to the plate surface of the support plate portion 21 is provided on the upper surface of the support plate portion 21 in a standing state. It is configured.

  Further, the tenon portion 3 of the present embodiment will be described more specifically. The tenon portion 3 is formed in a flat plate shape that is thicker than the thin plate like the support plate of Patent Document 1, and the tenon portion 3 is formed on its plate surface ( Standing on the upper surface of the support plate portion 21 so that the plate surface in the long side direction in plan view is parallel to the long side portion of the support plate portion 21 and concentric with the support plate portion 21 in plan view Arranged.

  Further, when the one side plate surface is set as a front portion, the ridge portion 3 penetrates the ridge portion 3 in the plate thickness direction at a plurality of locations (seven locations in the drawing) of the front portion (the back portion ( When the insertion hole 4 extending to the other side plate surface) is formed, the relief portion 3 is inserted into the relief hole 6 of the column B, and the insertion hole 4 and the locking hole 7 formed in the column B are communicated with each other. A drift pin (hereinafter referred to as a drift pin 10) serving as a locking body 10 can be inserted into the insertion hole 4 and the locking hole 7 communicated with each other.

  Therefore, by adopting a configuration in which the drift pin 10 is inserted in the thickness direction of the flat plate-shaped ridge portion 3 having such a thickness, an earthquake transmitted to the ridge portion 3 via the column B (drift pin 10) The external force (horizontal shearing force) due to wind or the like is well received not only on the flat plate surface in the long side direction of the ridge portion 3 but also on the flat surface in the thickness direction (short side direction) of the ridge portion 3, and resistance to this external force. Can demonstrate power. That is, according to the column base metal fitting A of the present embodiment, such an external force is smaller than the thin flat plate-like support plate of Patent Document 1 and the hozo pipe of Patent Document 2 that receives external force on the curved plate surface. It has a configuration that can exert a strong resistance to.

  Further, the plurality of insertion holes 4 are set so that the hole diameter is slightly larger than the outer diameter of the drift pin 10 to be inserted into and inserted into the insertion hole 4. Thus, the drift pin 10 can be inserted and inserted without resistance.

  Further, the left and right side surfaces (side surfaces in the plate thickness direction of the side wall 3) of the side wall 3 have a hole direction orthogonal to the hole direction of the insertion hole 4 (the plate width direction of the side wall 3 is the hole direction). The second insertion holes 5 are formed at a plurality of locations on each side surface portion (in the drawing, the second insertion holes 5 are formed at the upper and middle portions of each side surface portion. .)

  The second insertion hole 5 is formed in a screw hole that does not penetrate in the plate width direction of the flange portion 3 and has a screw portion 14 (female screw portion) as a fixing means 13 on the inner peripheral surface. Then, the screw part 14 (male screw part) at the tip of the bolt (hereinafter referred to as the bolt 11) adopted as the second locking body 11 can be inserted into the second insertion hole 5 and fixed by screwing. It is configured. In other words, the bolts 11 are screwed and fixed to the respective second insertion holes 5 in a total of four locations, so that the four bolts 11 function as a part of the relief portion 3.

  The second insertion hole 5 may be formed only at one place on the side surface of the ridge part 3, but the connection strength of the pillar B is improved by forming it at a plurality of places as in this embodiment. In addition, the third locking body 12 to be described later is preferably inserted into the long side surface of the column B in the range where the side holes 6 are not present, which is preferable. The fixing means 13 may have another structure different from the present embodiment, or may be provided only in one of the second insertion hole 5 and the second locking body 11.

  Further, the anchor bolt connecting portion 16 of the present embodiment is provided with connecting holes 18 through which the anchor bolts 15 are inserted in the four corners of the mounting plate portion 17 at the lower part of the metal fitting body 2 in a vertically penetrating state, respectively. A hexagonal nut 19 is screwed from above the mounting plate 17 to each anchor bolt 15 that is inserted through the connecting hole 18 and protrudes above the mounting plate 17 (below the support plate 21). The anchor bolt 15 (base 1) and the metal fitting body 2 are connectable. Reference numeral 20 in the figure denotes a washer.

  On the other hand, the illustrated foundation 1 is configured such that four anchor bolts 15 project at the connection positions of the pillars B in correspondence with the connection holes 18 at the four corners (four locations) of the anchor bolt connection portion 16. .

  Accordingly, the anchor bolt connecting portion 16 is configured to be capable of firmly connecting and fixing the column base bracket A to the four anchor bolts 15 at four positions.

  Next, the column B of the present embodiment will be described. A rectangular column having a rectangular cross section is employed.

  In addition, the bottom of the pillar B conceals the entire circumference of the relief portion 3 when the relief portion 3 of the pillar base A is inserted (the relief portion 3 is not exposed from the peripheral surface of the pillar B). The hollow hole 6 is formed in a square hole shape corresponding to the shape of the hollow portion 3.

  Further, a locking hole 7 communicating with the insertion hole 4 of the horn part 3 is formed on the peripheral surface of the column B, and the slab of the horn part 3 when the locking hole 7 is communicated with the insertion hole 4. A second locking hole 8 that communicates with the second insertion hole 5 and that has a hole direction orthogonal to the hole direction of the locking hole 7 is formed in communication with the relief hole 6.

  Specifically, each insertion is performed when the bottom portion of the column B is placed and supported on the support plate portion 21 by inserting the bottom portion 3 into the recess hole 6 on the peripheral surface of the long side direction of the column B. Locking holes 7 communicating with the holes 4 are formed at a plurality of locations (seven locations in the drawing) in alignment with the respective insertion holes 4.

  Further, when the locking hole 7 and the insertion hole 4 are communicated with the peripheral surface in the short side direction of the column B, the column B communicates with the second insertion hole 5 and is orthogonal to the hole direction of the locking hole 7. The second locking holes 8 in the direction of the holes to be formed are formed at a plurality of locations (two locations in the drawing) in alignment with the respective second insertion holes 5.

  That is, the insertion hole 4 and the locking hole 7 are brought into communication with each other only by inserting the above-mentioned relief part 3 into the relief hole 6 and placing the column B on the support plate part 21, and the second insertion hole. 5 and the second locking hole 8 are configured to communicate with each other.

  Then, the drift pins 10 are inserted into the insertion holes 4 and the locking holes 7 that are communicated from the side of the column B, and are inserted (press-fitted and locked). By inserting bolts 11 into the two insertion holes 5 and the respective second locking holes 8 and screwing them together, the hoso part 3 and the column B can be connected.

  Further, on the circumferential surface of the long side direction of the pillar B, the second locking hole 8 is arranged orthogonally to the connected state, and the hole direction is orthogonal to the hole direction of the second locking hole 8 (the above-mentioned engagement direction). A third locking hole 9 is formed at a position closer to the left and right end portions without the hole 6, and the third locking hole 9 is formed. A drift pin (hereinafter referred to as a drift pin 12) as a third locking body 12 inserted into the second locking hole 8 and a bolt 11 inserted into the second locking hole 8 are arranged orthogonally in a contact state. Yes.

  More specifically, the third locking hole 9 is formed as a through-hole penetrating the flange portion 3 in the plate thickness direction, and is continuously provided above and below the second locking hole 8. Each of the drift pins 12 that are arranged and inserted into the upper and lower third locking holes 9 and inserted (press-fit locking) are inserted into the second locking holes 8 and screwed together, and a part of the chin portion 3 is inserted. The bolts 11 functioning as the upper and lower sides are sandwiched from above and below so as to be arranged orthogonally in a contact state.

  With this configuration, when the building receives an external force such as an earthquake or wind, the bottom of the column B tries to rotate with the column base A as a fulcrum, for example, one side (left side) of the column B in FIG. The other side (right side) tries to move downward, but at this time, on one side of the column B, the drift pin 12 located below the bolt 11 prevents the upward movement of this one side. Since the drift pin 12 located above the bolt 11 on the opposite side of the column B exerts the resistance so as to prevent the downward movement on the opposite side, the extremely high column B The connection strength will be exhibited.

  In this embodiment, the second locking hole 8 and the third locking hole 9 are provided in a continuous state, and the bolt 11 and the drift pin 12 are arranged so as to be orthogonally arranged in a contact state. However, the second locking hole 8 and the third locking hole 9 may be formed in a non-continuous state so that the bolt 11 and the drift pin 12 are disposed close to each other. When configured in this manner, the same resistance action as described above is exhibited, although it is slightly inferior to the configuration in which the bolt 11 and the drift pin 12 directly contact each other.

  Next, a column connection method (a connection method between the foundation 1 and the column B) using the column base metal fitting of the present embodiment configured as described above will be described. The drawing shows the case where the pillar B is erected directly on the foundation 1, but this embodiment can also be used when a foundation is installed on the foundation 1 and the pillar B is erected on this foundation. (When the column B is erected on the base, the anchor bolts 15 are protruded upward through the base, and the mounting plate portion 17 is directly mounted on the upper surface of the base to anchor the column base bracket A. Connect and fix to bolt 15.)

  First, the four anchor bolts 15 projecting from the upper surface of the foundation 1 are inserted into the connecting hole 18 to place the mounting plate portion 17 of the metal fitting body 2 on the upper surface of the foundation 1, and upward from the connecting hole 18. The column base bracket A is connected and fixed on the foundation 1 by screwing and tightening a nut 19 from above the mounting plate portion 17 to each protruding anchor bolt 15.

  Next, the base portion 3 of the metal fitting body 2 is inserted into the base hole 6 at the bottom of the column B, and the column B is erected on the foundation 1 by placing and supporting the bottom portion of the column B on the support plate portion 21.

  Next, the drift pin 10 is driven from the side of the column B into the insertion hole 4 and the locking hole 7 of the column B that are in communication and inserted and locked, and the channel 3 that is in communication is inserted. The bolt 11 is inserted into the second insertion hole 5 and the second locking hole 8 of the column B from the side of the column B and screwed, and further drifts to the third locking hole 9 from the side of the column B. The pin 12 is inserted to connect the horizontal portion 3 and the column B.

  According to the present embodiment configured as described above, the pillar B has the relief hole 6 for concealing the entire circumference of the relief portion 3 when the relief portion 3 of the column base metal A is inserted. B is advantageous in terms of yield strength as in the above-mentioned Patent Document 2.

  Further, unlike the above-described Patent Document 2, the column B has a structure advantageous in terms of yield strength. However, according to the present embodiment, a large number of drift pins 10 and 12 are inserted into the column B, and the column B is inserted into the ridge portion. 3 can be connected and fixed. That is, the bolt 11 as the second locking body 11 is inserted and fixed in the column B so as to function as a part of the relief portion 3, and the range where there is no relief portion 3 (relief hole 6) so as to intersect with this bolt 11. In addition, since the drift pin 12 as the third locking body 12 can be driven in, as a result, as many as 15 drift pins 10 and 12 are driven almost evenly into the long side surface of the column B so as to be extremely strong. The column B could be connected and fixed to the side portion 3.

  Thereby, in addition to the point that the pillar B itself is advantageous in terms of proof stress, the long side surface portion of the pillar B can exhibit a large resistance force against an external force caused by an earthquake or a typhoon.

  A second embodiment of the present invention will be described with reference to FIG.

  In the present embodiment, the configuration of the relief portion 3 of the column base metal A and the shape of the relief hole 6 at the bottom of the pillar B into which the relief portion 3 is inserted are different from those of the first embodiment.

  Specifically, the column base bracket A of the present embodiment has a configuration in which two prismatic columnar hoses 3 are projected in a standing state at intervals in the long side direction of the support plate portion 22. In the column B of the embodiment, corresponding to the two ridge portions 3 of the column base metal fitting A, the ridge holes 6 are formed in two places at the bottom.

  In addition, each insertion portion 3 is formed with a plurality of insertion holes 4 penetrating through a plurality of locations (five locations in the drawing) of the front portion which is in the shape of a vertically long rectangle parallel to the long side portion of the support plate portion 21. The second insertion holes 5 are formed in a plurality of locations on each side portion (in the drawing, two locations, the upper portion and the middle portion). ).

  On the other hand, on the peripheral surface of the column B, a locking hole 7 is formed in communication with the side hole 6 so as to correspond to the position and number of each insertion hole 4 of each side part 3, and A second locking hole 8 is formed in communication with the relief hole 6 in correspondence with the position and number of each second insertion hole 5 of the portion 3.

  Further, in this embodiment, the third locking hole 9 is provided in a continuous state only below the second locking hole 8, and the drift pin 12 inserted into the third locking hole 9 includes: The case where it comprises so that it may orthogonally arrange | position in the contact state under the volt | bolt 11 inserted in the 2nd latching hole 8 is shown.

  This embodiment is preferably used when connecting the pillar B having a width wider than that of the pillar B of the first embodiment.

  Other configurations are the same as those of the first embodiment.

  The present invention is not limited to the first and second embodiments, and the specific configuration of each component can be designed as appropriate.

DESCRIPTION OF SYMBOLS 1 Foundation 2 Metal fitting body 3 Side part 4 Insertion hole 5 Second insertion hole 6 Side hole 7 Locking hole 8 Second locking hole 9 Third locking hole
10 Locking body
11 Second locking body
12 Third locking body
13 Fixing means
14 Screw part A Column base bracket B Column

Claims (6)

  The column base bracket is connected and fixed to the foundation, and the ridge portion provided on this column base bracket is inserted into the ridge hole provided at the bottom of the column to form the insertion hole formed in the ridge portion and the column communicating with this. In the column connection structure using the column base metal fitting that connects the base portion and the column by inserting the engagement body into the engagement hole, the column base metal fitting is a metal fitting body that can be connected and fixed to the foundation. The upper portion is provided in an upright state on the upper portion, and the insertion portion and a second insertion hole having a hole direction orthogonal to the hole direction of the insertion hole are formed in the upper portion, and the column Is formed in the bottom portion to form a concavity that conceals the entire circumference of the concavity portion when the concavity portion of the column base metal fitting is inserted, and the concavity hole and the concavity hole are formed in the peripheral surface of the pillar. A second locking hole that communicates with the second insertion hole and is perpendicular to the hole direction of the locking hole when communicating with the insertion hole of the ridge portion. A third latch that is formed in communication with each of the tenon holes and is disposed orthogonally to the second latching hole in the vicinity or in a connected state and is in a hole direction perpendicular to the hole direction of the second latching hole. A hole is formed in the peripheral surface of the pillar and in the range without the side hole, and a third locking body inserted into the third locking hole and a second locking body inserted into the second locking hole Are inserted so as to be orthogonal to each other in the proximity or contact state, and the insertion portion and the locking hole are inserted by inserting a relief portion provided in the column base metal fitting into a relief hole provided in the bottom portion of the pillar. When the locking body is inserted into the second locking hole, the second locking body is inserted into the communicating second locking hole and the second insertion hole, and the third locking body is inserted into the third locking hole. Column connection structure using column base metal fittings, characterized in that it has a structure that connects the horizontal part and the column.   The third locking hole is disposed in a state of being close to or continuously provided at least below the second locking hole, and the third locking body inserted into the third locking hole is connected to the second locking hole. 2. The column connection structure using column base brackets according to claim 1, wherein the column connection structure is arranged so as to be orthogonally disposed in the proximity or contact state below the second locking body inserted into the stop hole.   The third locking holes are arranged close to or in a continuous state above and below the second locking holes, and the third locking bodies inserted into the upper and lower third locking holes are, 3. The structure according to claim 1, wherein the second locking body inserted into the second locking hole is arranged orthogonally in the proximity or contact state so as to be sandwiched from above and below. Column connection structure using the column base metal fitting described in the item.   The column base bracket is provided with the plate-shaped or square-shaped ridge portion on the upper portion of the bracket body, and a plurality of the insertion holes are formed in the front portion of the ridge portion, and the side surface of the ridge portion The column using the column base metal fitting according to any one of claims 1 to 3, wherein the second insertion hole having a hole direction orthogonal to the hole direction of the insertion hole is formed in a portion. Connection structure.   Either one or both of the second insertion hole and the second engagement body inserted into the second insertion hole are provided with fixing means capable of inserting and fixing the second engagement body into the second insertion hole. The column connection structure using the column base metal fitting according to any one of claims 1 to 4, wherein the column connection structure is provided.   The fixing means has a configuration in which a screw portion is provided in the second insertion hole or the second locking body, and the second locking body is inserted into the second insertion hole and fixed by screwing. A column connection structure using the column base metal fitting according to claim 5.

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