Connection member, connection structure between wooden column and steel horizontal member, and building

Abstract

This connection member (15) couples a wooden column (12) and a steel horizontal member (13). The connection member (15) comprises: a column connection part (50) coupled to a side surface (12a) of the wooden column (12); a first horizontal member connection part (51) and a second horizontal member connection part (52) to which the steel horizontal member (13) is coupled; a first connection part (53) that connects the column connection part (50) and the first horizontal member connection part (51); and a second connection part (54) that connects the column connection part (50) and the second horizontal member connection part (52). The second horizontal member connection part (52) is aligned with the first horizontal member connection part (51) via a gap (G). The column connection part (50) is provided with a plurality of column connection holes (50a) through each of which a column connection bolt (B11) inserted through a through-hole (21) of the wooden column (12) is inserted. The plurality of column connection holes (50a) are arranged in a row and each overlap the gap (G) when viewed from the insertion direction of the column connection bolt (B11) into the column connection hole (50a).

Description

Connecting member, connection structure between wooden column and steel horizontal member, and building

[0001] The present disclosure relates to a connecting member, a connection structure between a wooden column and a steel horizontal member, and a building.

[0002] Non-Patent Document 1 discloses a connection structure between a wooden column and a steel horizontal member. The wooden column and the steel horizontal member are connected by a T-shaped metal fitting and two splice plates. The T-shaped metal fitting has a first plate disposed on the side surface of the wooden column and a second plate extending from the first plate in the thickness direction of the first plate. A plurality of column connection holes are provided in two rows in the first plate. A plurality of column through holes are provided in two rows in the wooden column. The T-shaped metal fitting is connected to the wooden column by locking a nut to a bolt inserted through the column through hole of the wooden column and the column connection hole of the T-shaped metal fitting.

[0003] Tatsumi Co., Ltd., TATSUMI, Homepage on the Internet, Searched on September 13, 2024, <URL: https: / / www.tatsumi-web.com / product / tn-wolsh-beam / >

[0004] The larger the number of column through holes provided in the wooden column, the greater the cross-sectional loss of the wooden column, and thus the strength of the wooden column decreases.

[0005] (1) A connecting member according to one aspect of the present disclosure is a connecting member that connects a wooden column and a steel horizontal member, and includes a column connection portion connected to the side surface of the wooden column, a first horizontal member connection portion to which the steel horizontal member is connected, a second horizontal member connection portion to which the steel horizontal member is connected and arranged with a gap from the first horizontal member connection portion, a first connection portion that connects the column connection portion and the first horizontal member connection portion, and a second connection portion that connects the column connection portion and the second horizontal member connection portion. A plurality of column connection holes through which column connection bolts inserted through through holes provided in the wooden column are inserted are provided in the column connection portion. The plurality of column connection holes are arranged in a row and overlap the gap when viewed from the insertion direction of the column connection bolts with respect to the column connection holes.

[0006] With this configuration, the multiple column connection holes overlap with the gap between the first horizontal member connection part and the second horizontal member connection part when viewed from the direction in which the column connection bolts are inserted into the column connection holes. Therefore, the column connection part can be connected to the wooden column through this gap. In addition, since the multiple column connection holes are arranged in a row, the row of through holes provided in the wooden column can also be made in a row. Consequently, compared to the conventional technology in which the wooden column has two rows of through holes, the cross-sectional loss of the wooden column can be reduced.

[0007] (2) A connection structure between a wooden column and a steel horizontal member, which is one aspect of the present disclosure, is a connection structure between a wooden column and a steel horizontal member in which the wooden column and the steel horizontal member are connected by a connecting member, wherein the connecting member is the connecting member described in (1) above.

[0008] (3) In the connection structure between the wooden column and the iron horizontal member described in (2) above, the iron horizontal member has a web, and the iron horizontal member and the connecting member are connected by an auxiliary connecting member, the auxiliary connecting member comprising a first angle member positioned on the first surface of the web and connecting the first horizontal member connecting portion and the web, and a second angle member positioned on the second surface of the web which is the surface opposite to the first surface and connecting the second horizontal member connecting portion and the web.

[0009] This configuration simplifies the construction of the connecting members compared to cases where the connecting members are configured to allow direct connection of steel horizontal members, thus simplifying the manufacturing of the connecting members.

[0010] Furthermore, since the web of the steel horizontal member is sandwiched between the first angle member and the second angle member, the connection state of the auxiliary connecting member to the steel horizontal member is stabilized. (4) In the connection structure between the wooden column and the steel horizontal member described in (2) above, the steel horizontal member has an end plate located at the end in the direction in which the steel horizontal member extends, and the end plate is connected to the first horizontal member connection part and the second horizontal member connection part, respectively.

[0011] With this configuration, the steel horizontal members can be directly connected to the connecting members. (5) A building that solves the above problem has a connection structure between any one of the wooden columns and the steel horizontal members described in (2) to (4) above.

[0012] According to the connecting member, the connection structure between a wooden column and a steel horizontal member, and the building described herein, the cross-sectional loss of the wooden column can be reduced.

[0013] This is a perspective view showing the connection structure between a wooden column and a steel beam in an embodiment. This is an exploded perspective view showing the connection structure between a wooden column and a steel beam in an embodiment. This is a plan view showing the connection structure between a wooden column and a steel beam in an embodiment. This is a cross-sectional view of the connection structure between a wooden column and a steel beam along line 4-4 in Figure 3. This is a perspective view showing a steel beam in a modified example. This is a plan view showing the connection structure between a wooden column and a steel beam in a modified example. This is an exploded perspective view showing a conventional connection structure between a wooden column and a steel beam. This is a plan view showing a conventional connection structure between a wooden column and a steel beam.

[0014] Referring to Figures 1 to 4, the connecting member 15, the connection structure between the wooden column 12 and the steel beam 13, and the building 10 of this embodiment will be described. As shown in Figures 1 and 2, the building 10 comprises a wooden column 12, a steel beam 13 as a steel horizontal member, and two wooden beams 14. When distinguishing between the two wooden beams 14, one wooden beam 14 is called the first wooden beam 14a, and the other wooden beam 14 is called the second wooden beam 14b.

[0015] As shown in Figure 3, the wooden column 12 of this embodiment is square in plan view. The wooden column 12 may also be rectangular in plan view. The wooden column 12 has a first side surface 12a, a second side surface 12b, a third side surface 12c, and a fourth side surface 12d. The second side surface 12b is the surface opposite to the first side surface 12a. The third side surface 12c and the fourth side surface 12d are surfaces perpendicular to the first side surface 12a and the second side surface 12b. The fourth side surface 12d is the surface opposite to the third side surface 12c. In the following description, the direction perpendicular to the first side surface 12a and the second side surface 12b in the horizontal direction will be referred to as the first direction X1. The direction along the first side surface 12a and the second side surface 12b in the horizontal direction will be referred to as the second direction X2.

[0016] As shown in Figure 4, the wooden column 12 is provided with multiple first column through-holes 21. The multiple first column through-holes 21 are arranged in a line at equal intervals in the vertical direction Z. Each first column through-hole 21 penetrates the wooden column 12 in a first direction X1. The wooden column 12 is provided with multiple second column through-holes 22. The multiple second column through-holes 22 are arranged in a line at equal intervals in the vertical direction Z. Each second column through-hole 22 penetrates the wooden column 12 in a second direction X2. In the vertical direction Z, the first column through-holes 21 and the second column through-holes 22 are arranged alternately.

[0017] <Connection structure between wooden column 12 and iron beam 13> As shown in Figures 3 and 4, the iron beam 13 is connected to the first side surface 12a of the wooden column 12 by a connecting member 15 and an auxiliary connecting member 16. The iron beam 13 extends in the first direction X1.

[0018] The steel beam 13 in this embodiment is made of H-shaped steel. The steel beam 13 has a web 30, an upper flange 31 provided at the upper end of the web 30, and a lower flange 32 provided at the lower end of the web 30. The web 30 has a first surface 30a and a second surface 30b. The first surface 30a and the second surface 30b are surfaces perpendicular to the thickness direction of the web 30. The second surface 30b is the surface opposite to the first surface 30a.

[0019] As shown in Figure 2, the web 30 of this embodiment is provided with a plurality of steel beam through-holes 33. The plurality of steel beam through-holes 33 are arranged in a row at equal intervals in the vertical direction Z. Each steel beam through-hole 33 penetrates the web 30 in the thickness direction.

[0020] The connecting member 15 includes a column connecting portion 50, a first beam connecting portion 51 as a first horizontal member connecting portion, a second beam connecting portion 52 as a second horizontal member connecting portion, a first connecting portion 53, and a second connecting portion 54. The connecting member 15 is formed, for example, by bending a single steel plate. The column connecting portion 50, the first beam connecting portion 51, the second beam connecting portion 52, the first connecting portion 53, and the second connecting portion 54 are each plate-shaped.

[0021] The column connecting portion 50 is the part that connects to the side surface of the wooden column 12. In this embodiment, the column connecting portion 50 is connected to the first side surface 12a of the wooden column 12. As shown in Figure 4, the column connecting portion 50 is provided with a plurality of column connecting holes 50a. The plurality of column connecting holes 50a are arranged in a row at equal intervals in the vertical direction Z. Each column connecting hole 50a penetrates the column connecting portion 50 in the thickness direction.

[0022] As shown in Figures 3 and 4, the column connecting portion 50 is positioned on the first side surface 12a of the wooden column 12 such that the column connecting hole 50a overlaps with the first column through hole 21. The shaft portion of the first column connecting bolt B11, which serves as a column connecting bolt, is inserted through the first column through hole 21 and the column connecting hole 50a. In this embodiment, the first column connecting bolt B11 is inserted from the second side surface 12b of the wooden column 12 toward the first side surface 12a. The first column connecting nut N11 is locked onto the first column connecting bolt B11. As a result, the column connecting portion 50 of the connecting member 15 is connected to the first side surface 12a of the wooden column 12.

[0023] The first beam connection section 51 and the second beam connection section 52 are the parts to which the steel beam 13 is connected. In this embodiment, the steel beam 13 is indirectly connected to the first beam connection section 51 and the second beam connection section 52 via an auxiliary connecting member 16.

[0024] The first beam connection section 51 and the second beam connection section 52 are positioned at a distance from the column connection section 50 in the first direction X1. The first beam connection section 51 and the second beam connection section 52 face the opposite side of the facing surface of the wooden column 12 in the column connection section 50 that faces the first side surface 12a. The second beam connection section 52 is aligned with the first beam connection section 51 in the second direction X2 with a gap G in between. The dimensions of the gap G in the second direction X2 are set to allow insertion of a tool for locking the first column connection nut N11 onto the first column connection bolt B11.

[0025] Multiple column connecting holes 50a arranged in a row overlap with the gap G when viewed from the direction in which the first column connecting bolt B11 is inserted into the column connecting holes 50a. In this embodiment, the direction in which the first column connecting bolt B11 is inserted into the column connecting holes 50a is the first direction X1. Therefore, multiple column connecting holes 50a arranged in a row overlap with the gap G when viewed from the first direction X1.

[0026] As shown in Figure 2, the first beam connection portion 51 is provided with a plurality of first beam connection holes 51a. In this embodiment, the plurality of first beam connection holes 51a are arranged in a row at equal intervals in the vertical direction Z. The second beam connection portion 52 is provided with a plurality of second beam connection holes 52a. In this embodiment, the plurality of second beam connection holes 52a are arranged in a row at equal intervals in the vertical direction Z.

[0027] The first connecting portion 53 connects the column connecting portion 50 and the first beam connecting portion 51 in the first direction X1. In this embodiment, the first connecting portion 53 connects the first end of the column connecting portion 50 in the second direction X2 to the end of the first beam connecting portion 51 in the second direction X2 that is located on the opposite side of the gap G. The second connecting portion 54 connects the column connecting portion 50 and the second beam connecting portion 52 in the first direction X1. In this embodiment, the second connecting portion 54 connects the second end of the column connecting portion 50 in the second direction X2 to the end of the second beam connecting portion 52 in the second direction X2 that is located on the opposite side of the gap G.

[0028] The auxiliary connecting member 16 connects the connecting member 15 and the steel beam 13. In this embodiment, the auxiliary connecting member 16 is composed of a first angle member 61 and a second angle member 62. The first angle member 61 and the second angle member 62 each have a flat plate-shaped first angle component 63 and a flat plate-shaped second angle component 64. The second angle component 64 is perpendicular to the first angle component 63.

[0029] The first angle component 63 is provided with a plurality of first auxiliary connecting holes 63a. The plurality of first auxiliary connecting holes 63a are arranged in a row at equal intervals in the vertical direction Z. The second angle component 64 is provided with a plurality of second auxiliary connecting holes 64a. The plurality of second auxiliary connecting holes 64a are arranged in a row at equal intervals in the vertical direction Z.

[0030] As shown in Figure 3, the first angle component 63 of the first angle member 61 is positioned on the first surface 30a of the web 30 such that the first auxiliary connecting hole 63a overlaps with the steel beam through hole 33. The first angle component 63 of the second angle member 62 is positioned on the second surface 30b of the web 30 such that the first auxiliary connecting hole 63a overlaps with the steel beam through hole 33. The web 30 is located between the first angle component 63 of the first angle member 61 and the first angle component 63 of the second angle member 62.

[0031] A first auxiliary bolt B21 is inserted through the first auxiliary connecting hole 63a of the first angle member 61, the steel beam through hole 33 of the web 30, and the first auxiliary connecting hole 63a of the second angle member 62. A first auxiliary nut N21 is secured to the first auxiliary bolt B21. As a result, the first angle member 61 and the second angle member 62 are connected to the web 30. Therefore, the auxiliary connecting member 16 is connected to the steel beam 13.

[0032] The second angle component 64 of the first angle member 61 is positioned on the first beam connection part 51 such that the second auxiliary connecting hole 64a overlaps the first beam connection hole 51a. A second auxiliary bolt B22 is inserted through the second auxiliary connecting hole 64a of the first angle member 61 and the first beam connection hole 51a of the first beam connection part 51. A second auxiliary nut N22 is locked onto the second auxiliary bolt B22. As a result, the first angle member 61 is connected to the first beam connection part 51.

[0033] The second angle component 64 of the second angle member 62 is positioned in the second beam connecting portion 52 such that the second auxiliary connecting hole 64a overlaps the second beam connecting hole 52a. The second auxiliary bolt B22 is inserted through the second auxiliary connecting hole 64a of the second angle member 62 and the second beam connecting hole 52a of the second beam connecting portion 52. The second auxiliary nut N22 is locked onto the second auxiliary bolt B22. As a result, the second angle member 62 is connected to the second beam connecting portion 52. Therefore, the auxiliary connecting member 16 is connected to the connecting member 15.

[0034] <Connection structure between wooden column 12 and wooden beam 14> The first wooden beam 14a is connected to the third side surface 12c of the wooden column 12 by a first connecting member 17a. The second wooden beam 14b is connected to the fourth side surface 12d of the wooden column 12 by a second connecting member 17b. The first wooden beam 14a and the second wooden beam 14b each extend in the second direction X2. The wooden column 12 is located between the first wooden beam 14a and the second wooden beam 14b in the second direction X2.

[0035] The wooden beam 14 is constructed from square timbers. Two slits 41 are provided on the end face 40 of the wooden beam 14 in the second direction X2. The two slits 41 are spaced apart in the first direction X1. The portion of the end face 40 of the wooden beam 14 located between the two slits 41 is recessed relative to the portions of the end face 40 of the wooden beam 14 located on either side of the two slits 41.

[0036] The wooden beam 14 is provided with multiple wooden beam through-holes 42. Note that only one wooden beam through-hole 42 is shown in Figure 3. The multiple wooden beam through-holes 42 are arranged in a line at equal intervals in the vertical direction Z. Each wooden beam through-hole 42 penetrates the wooden beam 14 in the first direction X1, passing through two slits 41.

[0037] The first connecting member 17a and the second connecting member 17b each have a base portion 70 and two extensions 71 extending from the base portion 70. The two extensions 71 are perpendicular to the base portion 70. The two extensions 71 extend parallel to each other. The first connecting member 17a and the second connecting member 17b are each formed, for example, by bending a single steel plate. The base portion 70 and the two extensions 71 are each plate-shaped.

[0038] Multiple bolt insertion holes 70a are provided in the base portion 70. Note that only one bolt insertion hole 70a is shown in Figure 3. The multiple bolt insertion holes 70a are arranged in a row at equal intervals in the vertical direction Z. Each bolt insertion hole 70a penetrates the base portion 70 in the thickness direction. Multiple pin insertion holes 71a are provided in each extension portion 71. Note that only one pin insertion hole 71a is shown in Figure 3. The multiple pin insertion holes 71a are arranged in a row at equal intervals in the vertical direction Z. Each pin insertion hole 71a penetrates the extension portion 71 in the thickness direction.

[0039] The base 70 of the first connecting member 17a is positioned on the third side surface 12c of the wooden column 12 such that the bolt insertion hole 70a overlaps with the second column through hole 22. The base 70 of the second connecting member 17b is positioned on the fourth side surface 12d of the wooden column 12 such that the bolt insertion hole 70a overlaps with the second column through hole 22.

[0040] The second column connecting bolt B12 is inserted through the bolt insertion hole 70a of the first connecting member 17a, the second column through hole 22 of the wooden column 12, and the bolt insertion hole 70a of the second connecting member 17b. The second column connecting nut N12 is locked onto the second column connecting bolt B12. As a result, the first connecting member 17a and the second connecting member 17b are connected to the wooden column 12.

[0041] The two extensions 71 of the first connecting member 17a are inserted into the two slits 41 of the first wooden beam 14a such that the pin insertion holes 71a overlap with the wooden beam penetration holes 42. Draft pins P are inserted through the two pin insertion holes 71a and the wooden beam penetration holes 42. In this way, the first connecting member 17a is connected to the first wooden beam 14a.

[0042] The two extensions 71 of the second connecting member 17b are inserted into the two slits 41 of the second wooden beam 14b such that the pin insertion holes 71a overlap with the wooden beam penetration holes 42. Draft pins P are inserted through the two pin insertion holes 71a and the wooden beam penetration holes 42. In this way, the second connecting member 17b is connected to the second wooden beam 14b.

[0043] <Method of connecting the wooden column 12 and the steel beam 13> The connection work between the wooden column 12 and the steel beam 13 is performed by a worker. First, the worker connects the wooden column 12 and the connecting member 15. Specifically, the worker positions the column connecting portion 50 of the connecting member 15 on the first side surface 12a of the wooden column 12 such that the column connecting hole 50a of the connecting member 15 aligns with the first column through hole 21 of the wooden column 12. The worker inserts the shaft portion of the first column connecting bolt B11 through the first column through hole 21 and the column connecting hole 50a. The tip of the shaft portion of the first column connecting bolt B11 protrudes from the side of the column connecting portion 50 that is opposite to the side facing the wooden column 12. As described above, a gap G is provided between the first beam connecting portion 51 and the second beam connecting portion 52. The worker inserts a tool into the gap G to lock the first column connecting nut N11 onto the first column connecting bolt B11, thereby locking the first column connecting nut N11 onto the first column connecting bolt B11. This connects the wooden column 12 and the connecting member 15.

[0044] Next, the operator connects the iron beam 13 and the auxiliary connecting member 16. Specifically, the operator arranges the first angle component 63 of the first angle member 61 of the auxiliary connecting member 16 on the first surface 30a of the web 30 of the iron beam 13 so that the first auxiliary connecting hole 63a of the first angle member 61 overlaps with the iron beam through hole 33 of the iron beam 13. The operator arranges the first angle component 63 of the second angle member 62 of the auxiliary connecting member 16 on the second surface 30b of the web 30 of the iron beam 13 so that the first auxiliary connecting hole 63a of the second angle member 62 overlaps with the iron beam through hole 33 of the iron beam 13. After the operator inserts the first auxiliary bolt B21 through the first auxiliary connecting hole 63a of the first angle member 61, the iron beam through hole 33, and the first auxiliary connecting hole 63a of the second angle member 62, the operator locks the first auxiliary nut N21 to the first auxiliary bolt B21. Thereby, the iron beam 13 and the auxiliary connecting member 16 are connected. Note that the connection work between the iron beam 13 and the auxiliary connecting member 16 may be performed prior to the connection work between the wooden column 12 and the connecting member 15.

[0045] Next, the operator connects the connecting member 15 and the auxiliary connecting member 16. Specifically, the operator arranges the second angle component 64 of the first angle member 61 of the auxiliary connecting member 16 on the first beam connecting portion 51 so that the second auxiliary connecting hole 64a of the first angle member 61 of the auxiliary connecting member 16 overlaps with the first beam connecting hole 51a of the first beam connecting portion 51 of the connecting member 15. After the operator inserts the second auxiliary bolt B22 through the second auxiliary connecting hole 64a and the first beam connecting hole 51a, the operator locks the second auxiliary nut N22 to the second auxiliary bolt B22. Thereby, the connecting member 15 and the first angle member 61 of the auxiliary connecting member 16 are connected.

[0046] The operator arranges the second angle component 64 of the second angle member 62 of the auxiliary connection member 16 on the second beam connection portion 52 so that the second auxiliary connection hole 64a of the second angle member 62 overlaps with the second beam connection hole 52a of the second beam connection portion 52 of the connection member 15. After the operator inserts the second auxiliary bolt B22 through the second auxiliary connection hole 64a and the second beam connection hole 52a, the operator locks the second auxiliary nut N22 to the second auxiliary bolt B22. Thereby, the connection member 15 and the second angle member 62 of the auxiliary connection member 16 are connected. By connecting the connection member 15 connected to the wooden column 12 and the auxiliary connection member 16 connected to the steel beam 13 to each other, the wooden column 12 and the steel beam 13 are connected.

[0047] [Operation of this Embodiment] The operation of this embodiment will be described. As shown in FIGS. 7 and 8, a conventional wooden column 12 and a steel beam 13 are connected by a T-shaped metal fitting 18 and two splice plates 19. In FIG. 7, the illustration of the two splice plates 19 and the steel beam 13 is omitted. The T-shaped metal fitting 18 has a first plate 81 and a second plate 82 orthogonal to the first plate 81.

[0048] The first plate 81 is a portion connected to the first side surface 12a of the wooden column 12. A plurality of column connection holes 81a are provided in a portion of the first plate 81 located on one side of the second plate 82. The plurality of column connection holes 81a are arranged at equal intervals in the vertical direction Z. Further, a column connection hole 81b is provided in a portion of the first plate 81 located on the other side of the second plate 82. The plurality of column connection holes 81b are arranged at equal intervals in the vertical direction Z. That is, two rows of column connection holes 81a and 81b are provided in the first plate 81 of the T-shaped metal fitting 18.

[0049] A conventional wooden column 12 is provided with multiple first column through holes 21a and multiple first column through holes 21b. The multiple first column through holes 21a are arranged at equal intervals in the vertical direction Z. The multiple first column through holes 21b are also arranged at equal intervals in the vertical direction Z. The rows of first column through holes 21a and the rows of first column through holes 21b are spaced apart in the second direction X2. The rows of first column through holes 21a are located closer to the third side surface 12c of the wooden column 12 than the rows of first column through holes 21b. In other words, a conventional wooden column 12 is provided with two rows of first column through holes 21a and 21b.

[0050] As shown in Figure 8, the first plate 81 is positioned on the first side surface 12a of the wooden column 12 such that the column connection hole 81a overlaps with the first column through hole 21a, and the column connection hole 81b overlaps with the first column through hole 21b. The first column connection bolt B11 is inserted through the column connection hole 81a and the first column through hole 21a. The first column connection nut N11 is locked onto the first column connection bolt B11. The first column connection bolt B11 is inserted through the column connection hole 81b and the first column through hole 21b. The first column connection nut N11 is locked onto the first column connection bolt B11. In this way, the first plate 81 is connected to the first side surface 12a of the wooden column 12.

[0051] The two splice plates 19 are positioned to sandwich the web 30 of the steel beam 13. The two splice plates 19 are connected to the steel beam 13 by nuts N being fastened to bolts B that pass through the two splice plates 19 and the web 30. The two splice plates 19 are also positioned to sandwich the second plate 82 of the T-shaped metal fitting 18. The two splice plates 19 are connected to the second plate 82 of the T-shaped metal fitting 18 by nuts N being fastened to bolts B that pass through the two splice plates 19 and the second plate 82.

[0052] In this way, when the wooden column 12 and the iron beam 13 are connected by a T-shaped metal fitting 18, the T-shaped metal fitting 18 is provided with two rows of column connecting holes 81a and 81b, and therefore the wooden column 12 is also provided with two rows of first column through holes 21a and 21b. In this case, the cross-sectional loss of the wooden column 12 becomes large, and the strength of the wooden column 12 decreases. Also, the distance from the first column through hole 21a to the third side surface 12c of the wooden column 12, and the distance from the first column through hole 21b to the fourth side surface 12d of the wooden column 12 become small, so it may be difficult to increase the diameter of the first column through holes 21a and 21b, i.e., the hole diameter of the first column connecting bolt B11.

[0053] In contrast, in this embodiment, the wooden column 12 and the iron beam 13 are connected by a connecting member 15. The connecting member 15 includes a column connecting portion 50, a first beam connecting portion 51, a second beam connecting portion 52, a first connecting portion 53, and a second connecting portion 54. The column connecting portion 50 is connected to the first side surface 12a of the wooden column 12. The iron beam 13 is connected to the first beam connecting portion 51 and the second beam connecting portion 52. The second beam connecting portion 52 is aligned with the first beam connecting portion 51 with a gap G between them. The first connecting portion 53 connects the column connecting portion 50 and the first beam connecting portion 51. The second connecting portion 54 connects the column connecting portion 50 and the second beam connecting portion 52.

[0054] The column connecting section 50 is provided with a plurality of column connecting holes 50a. The column connecting section 50 is connected to the wooden column 12 by the column connecting holes 50a and the first column connecting bolt B11 inserted through the first column through hole 21 of the wooden column 12. The plurality of column connecting holes 50a are arranged in a row. When viewed from the direction in which the first column connecting bolt B11 is inserted into the column connecting holes 50a, the plurality of column connecting holes 50a are aligned with the gap G provided between the first beam connecting section 51 and the second beam connecting section 52.

[0055] Thus, in this embodiment, the multiple column connecting holes 50a overlap with the gap G when viewed from the direction in which the first column connecting bolt B11 is inserted into the column connecting holes 50a, so that the column connecting portion 50 to the wooden column 12 can be connected through the gap G. Specifically, with the first column connecting bolt B11 inserted through the first column through hole 21 and the column connecting holes 50a, the first column connecting nut N11 can be locked to the first column connecting bolt B11 by inserting a tool for locking the first column connecting nut N11 onto the first column connecting bolt B11 through the gap G.

[0056] Furthermore, since the multiple column connecting holes 50a are arranged in a single row, the row of first column through holes 21 provided in the wooden column 12 can also be arranged in a single row. Therefore, compared to the case where the first column through holes 21a and 21b are provided in two rows in the wooden column 12, as in the conventional technology, the cross-sectional loss of the wooden column 12 can be reduced. In addition, the distance from the first column through hole 21 to the third side surface 12c of the wooden column 12, and the distance from the first column through hole 21 to the fourth side surface 12d of the wooden column 12 are larger than the distance from the first column through hole 21a to the third side surface 12c of the wooden column 12, and the distance from the first column through hole 21b to the fourth side surface 12d of the wooden column 12 in the conventional technology. Therefore, it becomes possible to increase the diameter of the first column through hole 21, that is, the hole diameter of the first column connecting bolt B11.

[0057] [Effects of this embodiment] The effects of this embodiment will be described. (1) The connecting member 15 includes a column connecting portion 50 connected to the first side surface 12a of the wooden column 12, and a first beam connecting portion 51 and a second beam connecting portion 52 to which the iron beam 13 is connected. The second beam connecting portion 52 is aligned with the first beam connecting portion 51 with a gap G in between. The column connecting portion 50 is provided with a plurality of column connecting holes 50a. The column connecting portion 50 is connected to the wooden column 12 by the column connecting holes 50a and a first column connecting bolt B11 inserted through the first column through hole 21 of the wooden column 12. The plurality of column connecting holes 50a are arranged in a row and overlap with the gap G when viewed from the direction in which the first column connecting bolt B11 is inserted into the column connecting holes 50a.

[0058] With this configuration, the multiple column connection holes 50a overlap with the gap G when viewed from the direction in which the first column connection bolt B11 is inserted into the column connection holes 50a, so that the column connection part 50 can be connected to the wooden column 12 through the gap G. In addition, since the multiple column connection holes 50a are arranged in a row, the row of first column through holes 21 provided in the wooden column 12 can also be in a row. Therefore, compared to the case in the conventional technology where the first column through holes 21a and 21b are provided in two rows in the wooden column 12, the cross-sectional loss of the wooden column 12 can be reduced.

[0059] (2) The steel beam 13 has a web 30. The steel beam 13 and the connecting member 15 are connected by an auxiliary connecting member 16. The auxiliary connecting member 16 is composed of a first angle member 61 and a second angle member 62. The first angle member 61 is positioned on the first surface 30a of the web 30. The first angle member 61 connects the first beam connecting portion 51 and the web 30. The second angle member 62 is positioned on the second surface 30b of the web 30, which is the surface opposite to the first surface 30a. The second angle member 62 connects the second beam connecting portion 52 and the web 30.

[0060] With this configuration, the structure of the connecting member 15 can be simplified compared to the case where the connecting member 15 is configured to allow the iron beam 13 to be directly connected to the connecting member 15, thus making it easier to manufacture the connecting member 15.

[0061] Furthermore, since the web 30 of the steel beam 13 is sandwiched between the first angle member 61 and the second angle member 62, the connection state of the auxiliary connecting member 16 to the steel beam 13 is stabilized. (3) As described above, since the multiple column connecting holes 50a are arranged in a row, the row of first column through holes 21 provided in the wooden column 12 can also be arranged in a row. As a result, compared to the case in the conventional technology in which the first column through holes 21a and 21b are provided in two rows in the wooden column 12, the distance from the first column through hole 21 to the third side surface 12c of the wooden column 12 and the distance from the first column through hole 21 to the fourth side surface 12d of the wooden column 12 are increased. Therefore, it becomes possible to increase the diameter of the first column through hole 21, that is, the hole diameter of the first column connecting bolt B11.

[0062] (4) The arrangement structure of the column connection holes 50a of the connecting member 15 that connects the wooden column 12 and the steel beam 13 is substantially the same as the arrangement structure of the bolt insertion holes 70a of the first connecting member 17a and the second connecting member 17b that connect the wooden column 12 and the wooden beam 14, in that they are in a single row. For this reason, the arrangement structure of the first column through holes 21 provided in the wooden column 12 corresponding to the column connection holes 50a is substantially the same as the arrangement structure of the second column through holes 22 provided in the wooden column 12 corresponding to the bolt insertion holes 70a, in that they are in a single row. Thus, the arrangement structure of the first column through holes 21 and the arrangement structure of the second column through holes 22 can be made common. Specifically, the hole diameter and hole pitch of the first column through holes 21 and the hole diameter and hole pitch of the second column through holes 22 can be made equal. This makes the design of the connection structure between the wooden column 12 and the beam more efficient. Furthermore, the first column through-hole 21 can be drilled using the same equipment as that used to drill the second column through-hole 22.

[0063] (5) The steel beam 13 is connected to the auxiliary connecting member 16 by a first auxiliary bolt B21 inserted through the steel beam through hole 33 of the steel beam 13 and the first auxiliary connecting hole 63a of the auxiliary connecting member 16. The auxiliary connecting member 16 is connected to the connecting member 15 by a second auxiliary bolt B22 inserted through the second auxiliary connecting hole 64a of the auxiliary connecting member 16 and the first beam connecting hole 51a or the second beam connecting hole 52a of the connecting member 15. The height of the steel beam 13 can be finely adjusted on site by adjusting the positions of the first auxiliary bolt B21 and the second auxiliary bolt B22 in the vertical direction Z.

[0064] (6) By making the beam extending in the first direction X1 a steel beam 13, the length of the beam in the first direction X1 can be increased. <Example of modification> The above embodiment is an example of possible forms of the connecting member 15, the connection structure between the wooden column 12 and the steel beam 13, and the building 10, and is not intended to limit their form. The connecting member 15, the connection structure between the wooden column 12 and the steel beam 13, and the building 10 may take forms different from those exemplified in the above embodiment. Examples of such forms include forms in which a part of the configuration of the embodiment is replaced, changed, or omitted, or forms in which a new configuration is added to the embodiment. Modifications of the embodiment are shown below.

[0065] - The steel horizontal member is not limited to the steel beam 13, but may also be a steel girder. - In the above embodiment, the auxiliary connecting member 16 was composed of a first angle member 61 and a second angle member 62, but is not limited to this. The configuration of the auxiliary connecting member 16 may be changed as appropriate, as long as the steel beam 13 and the connecting member 15 can be connected by the auxiliary connecting member 16. The auxiliary connecting member 16 may be composed of, for example, a T-shaped metal fitting.

[0066] As shown in Figures 5 and 6, the steel beam 13 may have end plates 34 located at the ends in the direction in which the steel beam 13 extends. The end plates 34 are provided with a plurality of first beam through holes 34a and a plurality of second beam through holes 34b.

[0067] Multiple first beam through-holes 34a are located on one side of the web 30. Multiple first beam through-holes 34a are arranged in a line at equal intervals in the vertical direction Z. Multiple second beam through-holes 34b are located on the other side of the web 30. Multiple second beam through-holes 34b are arranged in a line at equal intervals in the vertical direction Z.

[0068] The iron beam 13 is positioned on the first beam connecting portion 51 and the second beam connecting portion 52 of the connecting member 15 such that the first beam through hole 34a overlaps with the first beam connecting hole 51a, and the second beam through hole 34b overlaps with the second beam connecting hole 52a.

[0069] A beam connecting bolt B13 is inserted through the first beam through-hole 34a and the first beam connecting hole 51a. A beam connecting nut N13 is secured to the beam connecting bolt B13. As a result, the end plate 34 of the steel beam 13 is connected to the first beam connecting portion 51 of the connecting member 15.

[0070] A beam connecting bolt B13 is inserted through the second beam through-hole 34b and the second beam connecting hole 52a. A beam connecting nut N13 is secured to the beam connecting bolt B13. As a result, the end plate 34 of the steel beam 13 is connected to the second beam connecting portion 52 of the connecting member 15.

[0071] With this configuration, the steel beam 13 can be directly connected to the connecting member 15 without the need for the auxiliary connecting member 16. The dimensions of the connecting member 15 and the auxiliary connecting member 16 in the vertical direction Z may be appropriately changed according to the dimensions of the steel beam 13 in the vertical direction Z.

[0072] In the above embodiment, the first column connecting bolt B11 was inserted from the second side surface 12b to the first side surface 12a of the wooden column 12, but it may also be inserted from the first side surface 12a to the second side surface 12b of the wooden column 12. In this case, in order to allow the head of the first column connecting bolt B11 to be inserted into the gap G, the dimension of the gap G in the second direction X2 is set to be larger than the outer diameter of the head of the first column connecting bolt B11.

[0073] - The method of connecting the horizontal members to the wooden column 12 may be changed as appropriate. A steel beam 13 or a wooden beam 14 may be connected to the second side surface 12b of the wooden column 12.

[0074] A steel beam 13 may be connected to the third side 12c of the wooden column 12. A horizontal member may not be connected to the third side 12c of the wooden column 12. A steel beam 13 may be connected to the fourth side 12d of the wooden column 12. A horizontal member may not be connected to the fourth side 12d of the wooden column 12.

[0075] <Note> This specification discloses the following technology: [Note 1] A connecting member for connecting a wooden column and a steel horizontal member, comprising: a column connecting portion connected to the side surface of the wooden column; a first horizontal member connecting portion to which the steel horizontal member is connected; a second horizontal member connecting portion to which the steel horizontal member is connected and which is aligned with the first horizontal member connecting portion with a gap between them; a first connecting portion connecting the column connecting portion and the first horizontal member connecting portion; and a second connecting portion connecting the column connecting portion and the second horizontal member connecting portion, wherein the column connecting portion is provided with a plurality of column connecting holes through which column connecting bolts inserted into through holes provided in the wooden column are inserted, and the plurality of column connecting holes are arranged in a row and overlap the gap when viewed from the direction in which the column connecting bolts are inserted into the column connecting holes.

[0076] [Note 2] A connection structure between a wooden column and a steel horizontal member, wherein the wooden column and the steel horizontal member are connected by a connecting member, and the connecting member is the connecting member described in Note 1.

[0077] [Note 3] In the connection structure between the wooden column and the iron horizontal member described in Note 2, the iron horizontal member has a web, and the iron horizontal member and the connecting member are connected by an auxiliary connecting member, the auxiliary connecting member being composed of a first angle member positioned on the first surface of the web and connecting the first horizontal member connecting portion and the web, and a second angle member positioned on the second surface of the web, which is the surface opposite to the first surface, and connecting the second horizontal member connecting portion and the web.

[0078] [Note 4] In the connection structure between the wooden column and the iron horizontal member described in Note 2, the iron horizontal member has an end plate located at the end in the direction in which the iron horizontal member extends, and the end plate is connected to the first horizontal member connection part and the second horizontal member connection part, respectively.

[0079] [Note 5] A building having a connection structure between a wooden column and a steel horizontal member as described in any one of Notes 2 to 4.

[0080] 10...Building, 12...Wooden column, 12a...First side as a side, 13...Steel beam as a steel horizontal member, 15...Connecting member, 16...Auxiliary connecting member, 21...First column through hole as a through hole, 30...Web, 30a...First face, 30b...Second face, 34...End plate, 50...Column connection part, 50a...Column connection hole, 51...First beam connection part as a first horizontal member connection part, 52...Second beam connection part as a second horizontal member connection part, 53...First connection part, 54...Second connection part, B11...First column connection bolt as a column connection bolt, 61...First angle member, 62...Second angle member, G...Gap.

Claims

1. A connecting member for connecting a wooden column and a steel horizontal member, comprising: a column connecting portion connected to the side surface of the wooden column; a first horizontal member connecting portion to which the steel horizontal member is connected; a second horizontal member connecting portion to which the steel horizontal member is connected and which is aligned with the first horizontal member connecting portion with a gap between them; a first connecting portion connecting the column connecting portion and the first horizontal member connecting portion; and a second connecting portion connecting the column connecting portion and the second horizontal member connecting portion, wherein the column connecting portion is provided with a plurality of column connecting holes through which column connecting bolts inserted into through holes provided in the wooden column are inserted, and the plurality of column connecting holes are arranged in a row and overlap the gap when viewed from the direction in which the column connecting bolts are inserted into the column connecting holes.

2. A connection structure between a wooden column and a steel horizontal member, wherein the wooden column and the steel horizontal member are connected by a connecting member, the connecting member being the connecting member described in claim 1.

3. The connection structure between a wooden column and a steel horizontal member according to claim 2, wherein the steel horizontal member has a web, the steel horizontal member and the connecting member are connected by an auxiliary connecting member, and the auxiliary connecting member comprises a first angle member arranged on the first surface of the web and connecting the first horizontal member connecting portion and the web, and a second angle member arranged on the second surface of the web which is the surface opposite to the first surface and connecting the second horizontal member connecting portion and the web.

4. The connection structure between a wooden column and a steel horizontal member according to claim 2, wherein the steel horizontal member has an end plate located at the end in the direction in which the steel horizontal member extends, and the end plate is connected to the first horizontal member connection part and the second horizontal member connection part, respectively.

5. A building having a connection structure between a wooden column and a steel horizontal member as described in any one of claims 2 to 4.

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