Framework structure, and building having framework structure

Abstract

To provide a framework structure and a building which can create a large space by fewer horizontal materials.SOLUTION: A framework structure 10 is the one around a chamber in a building. The framework structure 10 comprises: a steel horizontal material 11; a first wooden horizontal material 21 orthogonal to the steel horizontal material 11; and a first connection metallic material 31 connecting the steel horizontal material 11 and the first wooden horizontal material 21. The steel horizontal material 11 is longer than the first wooden horizontal material 21.SELECTED DRAWING: Figure 8

Description

[Technical Field]

[0001] The present disclosure relates to a frame structure and a building having a frame structure. [Background technology]

[0002] A framework structure composed of wooden columns and steel beams is known (for example, Non-Patent Document 1). In the technique described in Non-Patent Document 1, a plurality of steel beams are arranged in parallel to form a large space. [Prior art documents] [Non-patent literature]

[0003] [Non-Patent Document 1] Tatsumi Co., Ltd., TATSUMI, website on the Internet, searched on May 2, 2024,<URL:https: / / www.tatsumi-web.com / product / tn-wolsh-beam / > Summary of the Invention [Problem to be solved by the invention]

[0004] However, using multiple steel beams to construct a large space can increase construction costs. Therefore, we provide a framework structure and building that can construct a large space using a small number of steel beams. [Means for solving the problem]

[0005] (1) A frame structure that solves the above problem is a frame structure for surrounding a room in a building, comprising a steel beam, a first wooden beam that is perpendicular to the steel beam at an intermediate portion of the steel beam, and a first connecting metal fitting that connects the steel beam and the first wooden beam, wherein the steel beam is longer than the first wooden beam. With this configuration, a frame structure that covers the upper portion of a large space can be constructed without placing columns within the room. Furthermore, a large space can be constructed with fewer steel beams than when multiple steel beams are arranged in parallel. In short, the number of steel beams can be reduced in a frame structure that covers the upper portion of a large space without placing columns within the room.

[0006] (2) The frame structure described in (1) above further includes two second wooden beams arranged parallel to the steel beam and aligned in a straight line, an intermediate wooden column arranged between the two second wooden beams, and a second connecting metal fitting connecting the first wooden beam and the intermediate wooden column, and the length of the steel beam is longer than the combined length of the two second wooden beams. This configuration allows for the creation of a large space below the steel beam.

[0007] (3) In the frame structure described in (2) above, each end of the first wooden cross member has the same end face structure, and the connection portion of the first connecting hardware to the first wooden cross member has the same structure as the connection portion of the second connecting hardware to the first wooden cross member.

[0008] With this configuration, since both ends of the first wooden cross member have the same end face structure, the processing of the first wooden cross member can be made more efficient than when both ends of the first wooden cross member have different end face structures.

[0009] (4) The frame structure described in (2) or (3) above further comprises a third wooden beam perpendicular to the steel beam and positioned on the opposite side of the steel beam from the first wooden beam, an additional steel beam parallel to the steel beam and positioned on the opposite side of the steel beam from the second wooden beam, a third connecting metal member connecting the steel beam and the third wooden beam, and a fourth connecting metal member connecting the additional steel beam and the third wooden beam. This configuration allows for the creation of a large space below the steel beam and the additional steel beam.

[0010] (5) The frame structure described in (2) or (3) above further includes a first wooden post supporting one end of the steel beam, a second wooden post supporting the other end of the steel beam, a fourth wooden post arranged parallel to the first wooden post and connected to the first wooden post, a fifth wooden post arranged parallel to the first wooden post and connected to the second wooden post, a third wooden post supporting the fourth wooden post and one of the two second wooden posts, and a fourth wooden post supporting the fifth wooden post and one of the two second wooden posts. This configuration reduces the cost of the frame structure by using wooden posts.

[0011] (6) In the frame structure described in any one of (1) to (5) above, the steel beam has a stiffener, and the first connector metal has a base portion, a fastening portion provided so as to protrude from a first surface of the base portion and fastened to the stiffener, and a connecting portion connected to the first wooden beam, the connecting portion having an insertion portion that passes through a slit provided on an end surface of the first wooden beam. With this configuration, the first connector metal can connect the first wooden beam having a slit to the steel beam.

[0012] (7) A building that solves the above problems includes a room and any one of the frame structures (1) to (6) provided around the room. With this configuration, a large space can be constructed using a small number of steel beams. [Effects of the Invention]

[0013] According to the frame structure and building disclosed herein, a large space can be constructed using a small number of steel beams. [Brief explanation of the drawings]

[0014] [Figure 1] FIG. 1 is a schematic diagram of a building. [Figure 2] This is a plan view of the frame structure of the upper part of the room. [Figure 3] FIG. 10 is a plan view of the connection between the steel beam and the first wooden column. [Figure 4] FIG. 4 is a cross-sectional view of the framework structure taken along line 4-4 in FIG. 3. [Figure 5] FIG. 10 is a plan view of the connection portion between the steel cross member and the first wooden cross member. [Figure 6] FIG. 6 is a cross-sectional view of the framework structure taken along line 6-6 in FIG. 5. [Figure 7] FIG. 2 is an exploded perspective view of a steel cross member and a first connecting hardware. [Figure 8] FIG. 2 is an exploded perspective view of a portion of the framework structure. DETAILED DESCRIPTION OF THE INVENTION

[0015] A building 1 and a framework structure 10 of this embodiment will be described with reference to Figures 1 to 8. Examples of the building 1 include a house, a community center, an office, a hospital, a public facility, a store, and the like.

[0016] As shown in FIG. 1, a building 1 comprises a foundation 2 and a building body 3 provided on the foundation 2. A room 5 is provided within the building body 3. The building body 3 has a skeleton 4. The skeleton 4 supports the building body 3. The skeleton 4 is composed of axial members such as columns and cross members.

[0017] In this embodiment, a frame structure 10 around a room 5 in a building 1 will be described. The frame structure 10 is a part of the skeleton 4. The frame structure 10 includes at least the frame of the upper part of the room 5. The upper part of the room 5 refers to the upper part of the room 5 on each floor. Specifically, the frame structure 10 of the upper part of the room 5 refers to the frame structure 10 of the floor on the second floor or higher, or the frame structure 10 of the ceiling under the roof 6.

[0018] In this embodiment, the first floor and the second floor are defined as follows: In the building 1, the first floor refers to the floor closest to the ground, and the second floor refers to the floor above the first floor.

[0019] 2, the frame structure 10 includes a steel beam 11, a first wooden beam 21, and a first connector 31. In one example, the steel beam 11 is arranged to span from the first wall 7 of the room 5 to the second wall 8 opposite the first wall 7 in a plan view. The first wooden beam 21 intersects with the steel beam 11.

[0020] The frame structure 10 may further include two second wooden beams 22, an intermediate wooden column 40 disposed between the two second wooden beams 22, and a second connecting hardware 32. The two second wooden beams 22 and the intermediate wooden column 40 are disposed on a third wall 9. The third wall 9 is a wall that connects the first wall 7 and the second wall 8.

[0021] The frame structure 10 may further include a third wooden beam 23, an additional steel beam 12, a third connecting metal member 33, and a fourth connecting metal member 34. The third wooden beam 23 is provided on the opposite side of the steel beam 11 from the first wooden beam 21. The third wooden beam 23 intersects with the steel beam 11.

[0022] The frame structure 10 may further include columns supporting each cross member. Specifically, the frame structure 10 may include a first wooden column 41, a second wooden column 42, a third wooden column 43, a fourth wooden column 44, a fourth wooden cross member 24, and a fifth wooden cross member 25.

[0023] The frame structure 10 may further include a sixth wooden beam 26 having a small cross-sectional area as a reinforcing member. Examples of the sixth wooden beam 26 include a small beam with a rectangular cross section and an I-joist with an I-shaped cross section.

[0024] [Steel horizontal member] As shown in Figures 3 and 4, the steel beam 11 has a web 15, an upper flange 16 provided at the upper end of the web 15, and a lower flange 17 provided at the lower end of the web 15.

[0025] As shown in FIGS. 5 and 6 , the steel beam 11 has a stiffener 18. The stiffener 18 is provided in a middle portion between both ends of the steel beam 11 in the longitudinal direction. The stiffener 18 is provided in the steel beam 11 at a location where the first wooden beam 21 is connected. The stiffener 18 is provided in the steel beam 11 at a location where the third wooden beam 23 is connected. The stiffener 18 to which the third wooden beam 23 is connected is provided on the opposite side of the web 15 from the stiffener 18 to which the first wooden beam 21 is connected. In the longitudinal direction of the steel beam 11, the stiffener 18 to which the third wooden beam 23 is connected may be provided in the same position as the stiffener 18 to which the first wooden beam 21 is connected, or may be provided in a different position.

[0026] The stiffener 18 is configured as a plate-like member that is perpendicular to the web 15, the upper flange 16, and the lower flange 17. The stiffener 18 is disposed between the upper flange 16 and the lower flange 17. The stiffener 18 is then welded to the web 15, the upper flange 16, and the lower flange 17.

[0027] As shown in Figure 2, the steel beam 11 is supported by a first wooden column 41 and a second wooden column 42. One end of the steel beam 11 is connected to the side of the first wooden column 41 by a fifth connecting metal fitting 35. The other end of the steel beam 11 is connected to the side of the second wooden column 42 by a fifth connecting metal fitting 35. The portion of the steel beam 11 between one end and the other end is not supported by any columns. In other words, a large column-free space SA, room 5, is formed below the steel beam 11.

[0028] The length of the steel beam 11 is longer than the length of the first wooden beam 21. The length of the steel beam 11 is also longer than the combined length of the two second wooden beams 22.

[0029] [Additional steel horizontal members] As shown in FIG. 2 , the additional steel cross member 12 is arranged parallel to the steel cross member 11. The additional steel cross member 12 is arranged on the opposite side of the steel cross member 11 from the second wooden cross member 22. The length of the additional steel cross member 12 is equal to the length of the steel cross member 11. The additional steel cross member 12 has a stiffener 18. The stiffener 18 is provided at the location on the additional steel cross member 12 where the third wooden cross member 23 is connected. The additional steel cross member 12 has substantially the same structure as the steel cross member 11 except for the arrangement of the stiffener 18.

[0030] [First wooden cross member] As shown in FIG. 2 , the first wooden beam 21 is perpendicular to the steel beam 11 at the middle portion of the steel beam 11. The middle portion of the steel beam 11 refers to the portion between two portions of the steel beam 11 supported by columns. Specifically, the middle portion of the steel beam 11 refers to the portion of the steel beam 11 between the portion supported by the first wooden column 41 and the portion supported by the second wooden column 42. In this embodiment, one first wooden beam 21 is arranged so as to be perpendicular to the steel beam 11.

[0031] One end of the first wooden beam 21 is connected to the steel beam 11 by a first connecting metal fitting 31. The other end of the first wooden beam 21 is connected to the intermediate wooden column 40 by a second connecting metal fitting 32. As shown in FIG. 8, both ends of the first wooden beam 21 have the same end surface structure.

[0032] Specifically, two slits 27 are provided at one end of the first wooden cross member 21, each corresponding to one of the two insertion portions 31D of the first connecting hardware 31. Two slits 27 are provided at the other end of the first wooden cross member 21, each corresponding to one of the two insertion portions 32D of the second connecting hardware 32. The pitches of the two slits 27 at each end of the first wooden cross member 21 are equal to each other.

[0033] [Second wooden cross member] As shown in FIG. 2 , the second wooden beams 22 are arranged parallel to the steel beam 11. The two second wooden beams 22 are aligned in a straight line. The second wooden beams 22 are connected to the intermediate wooden columns 40. Specifically, one of the second wooden beams 22 is connected to one side of the intermediate wooden column 40, perpendicular to the side to which the steel beam 11 is connected. The other second wooden beam 22 is connected to the other side of the intermediate wooden column 40, perpendicular to the side to which the steel beam 11 is connected. In this embodiment, the intermediate wooden column 40 and the second wooden beams 22 form the framework of the third wall 9.

[0034] [Third wooden cross member] As shown in Figure 2, the third wooden beams 23 are perpendicular to the steel beams 11. There is no limit to the number of third wooden beams 23 in the frame structure 10. In this embodiment, two third wooden beams 23 are arranged perpendicular to the steel beams 11.

[0035] The third wooden cross member 23 is positioned on the opposite side of the steel cross member 11 from the first wooden cross member 21. The third wooden cross member 23 is positioned between the steel cross member 11 and the additional steel cross member 12. One end of the third wooden cross member 23 is connected to the steel cross member 11 by a third connecting metal member 33. The other end of the third wooden cross member 23 is connected to the additional steel cross member 12 by a fourth connecting metal member 34. The third wooden cross member 23 has substantially the same structure as the first wooden cross member 21. Both ends of the third wooden cross member 23 have the same end face structure. Specifically, two slits 27 are provided at each end of the third wooden cross member 23. The pitches of the two slits 27 at each end of the third wooden cross member 23 are equal to each other.

[0036] [Fourth wooden cross member] As shown in Fig. 2, the fourth wooden cross member 24 is arranged along a line that is perpendicular to the line along the steel cross member 11 and that passes through the first wooden column 41. The fourth wooden cross member 24 is connected to each of two side surfaces that are located opposite each other on the first wooden column 41. The two side surfaces to which the fourth wooden cross member 24 is connected are perpendicular to the side surfaces to which the steel cross member 11 is connected.

[0037] One of the fourth wooden cross members 24 is placed parallel to the first wooden cross member 21 and connects the first wooden pillar 41 and the third wooden pillar 43. The other fourth wooden cross member 24 is placed parallel to the third wooden cross member 23.

[0038] In this embodiment, the first wooden column 41 and the fourth wooden cross member 24 form part of the framework of the first wall 7. The fourth wooden cross member 24 is connected to the first wooden column 41 by a metal fitting for wood-to-wood connections. An example of a metal fitting for wood-to-wood connections is a metal fitting having the same structure as the second connecting metal fitting 32.

[0039] [5th ​​wooden cross member] As shown in Fig. 2, the fifth wooden cross member 25 is arranged along a line that is perpendicular to the line along the steel cross member 11 and passes through the second wooden column 42. The fifth wooden cross member 25 is connected to each of two side surfaces of the second wooden column 42 that are located on opposite sides. The two side surfaces to which the fifth wooden cross member 25 is connected are perpendicular to the side surfaces to which the steel cross member 11 is connected.

[0040] One of the fifth wooden cross members 25 is placed parallel to the first wooden cross member 21 and connects the second wooden pillar 42 and the fourth wooden pillar 44. The other fifth wooden cross member 25 is placed parallel to the third wooden cross member 23.

[0041] In this embodiment, the second wooden column 42 and the fifth wooden cross member 25 form part of the framework of the second wall 8. The fifth wooden cross member 25 is connected to the second wooden column 42 by a metal fitting for wood-to-wood connections. An example of a metal fitting for wood-to-wood connections is a metal fitting having the same structure as the second connecting metal fitting 32.

[0042] [6th wooden cross member] As shown in FIG. 2 , the sixth wooden cross member 26 is arranged parallel to the steel cross member 11. The sixth wooden cross member 26 is connected to the other cross members by L-shaped metal fittings. One of the sixth wooden cross members 26 is arranged between the third wooden cross member 23 and the fourth wooden cross member 24 and is connected to the third wooden cross member 23 and the fourth wooden cross member 24. The other sixth wooden cross member 26 is arranged between the third wooden cross member 23 and the fifth wooden cross member 25 and is connected to the third wooden cross member 23 and the fifth wooden cross member 25. The other sixth wooden cross member 26 is arranged between two third wooden cross members 23 and is connected to the two third wooden cross members 23.

[0043] [First connecting hardware] As shown in Fig. 5, the first connecting hardware 31 connects the steel beam 11 and the first wooden beam 21. As shown in Figs. 5 to 7, the first connecting hardware 31 has a base portion 31A, a fastening portion 31B, and a connecting portion 31C. Hereinafter, the state in which the first connecting hardware 31 is attached to the steel beam 11 will be referred to as the "attached state of the first connecting hardware 31."

[0044] The base portion 31A is formed in a plate shape. The base portion 31A has a first surface 31R and a second surface 31S opposite to the first surface 31R. The base portion 31A is arranged parallel to the web 15 of the steel beam 11 when the first connecting hardware 31 is attached.

[0045] The fastening portion 31B is formed in a plate shape. The fastening portion 31B is provided so as to protrude from the first surface 31R of the base portion 31A. When the first connecting hardware 31 is attached, the fastening portion 31B extends in the vertical direction and is arranged parallel to the stiffener 18 of the steel beam 11. The fastening portion 31B is provided with fastening holes through which fastening members are inserted. The fastening portion 31B is fastened to the stiffener 18 by fastening members such as bolts and nuts (see FIG. 7).

[0046] The connecting portion 31C is connected to the first wooden cross member 21. The connecting portion 31C has two insertion portions 31D. The insertion portions 31D are plate-shaped. The insertion portions 31D are arranged to protrude from the second surface 31S of the base portion 31A. When the first connecting hardware 31 is installed, the insertion portions 31D extend in the vertical direction. The insertion portions 31D are inserted into slits 27 provided on the end surfaces of the first wooden cross member 21.

[0047] The connection portion 31C of the first connecting hardware 31 with the first wooden cross member 21 has the same structure as the connection portion 32C of the second connecting hardware 32 with the first wooden cross member 21. Specifically, the pitch of the two insertion portions 31D of the first connecting hardware 31 is equal to the pitch of the two insertion portions 32D of the second connecting hardware 32.

[0048] 6, the length of the base portion 31A in the vertical direction is approximately equal to the length of the stiffener 18. The length of the fastening portion 31B in the vertical direction is slightly shorter than the length of the stiffener 18. The length of the insertion portion 31D in the vertical direction is longer than the length of the stiffener 18.

[0049] [Second connecting hardware] 8, the second connecting hardware 32 connects the first wooden cross member 21 and the intermediate wooden column 40. The second connecting hardware 32 has a base portion 32A and a connecting portion 32C. The connecting portion 32C has two insertion portions 32D.

[0050] The base portion 32A is formed in a plate shape. Two insertion portions 32D are provided in the base portion 32A. Fastening holes (not shown) through which fastening members are inserted are provided in the base portion 32A. One of the insertion portions 32D extends from one end of the base portion 32A in the horizontal direction. The other insertion portion 32D extends from the other end of the base portion 32A in the horizontal direction.

[0051] [Third and fourth connecting hardware] As shown in Figure 2, the third connection hardware 33 connects the steel beam 11 and the third wooden beam 23. The third connection hardware 33 has the same structure as the first connection hardware 31. The fourth connection hardware 34 connects the additional steel beam 12 and the third wooden beam 23. The fourth connection hardware 34 has the same structure as the first connection hardware 31.

[0052] [5th ​​connecting hardware] As shown in Figure 3, one of the fifth connecting metal fittings 35 connects the steel beam 11 to the first wooden column 41. The other fifth connecting metal fitting 35 connects the steel beam 11 to the second wooden column 42.

[0053] 3 and 4, the fifth connection hardware 35 is a T-shaped hardware. The fifth connection hardware 35 has a base portion 35A that is fixed to the side surface of the column by a fastening member, and a fastening portion 35B that extends perpendicular to the base portion 35A. The fastening portion 35B is fastened to the web 15 of the steel beam 11 via two metal plates 36.

[0054] [Column] As shown in FIG. 2 , the first wooden column 41 supports one end of the steel beam 11. The second wooden column 42 supports the other end of the steel beam 11. The steel beam 11 is supported by the first wooden column 41 and the second wooden column 42. The steel beam 11 is not supported by other columns in its middle portion. The middle wooden column 40 supports one end of the first wooden beam 21 and one ends of the two second wooden beams 22. The third wooden column 43 supports one end of one second wooden beam 22 and one end of the fourth wooden beam 24. The fourth wooden column 44 supports one end of the other second wooden beam 22 and one end of the fifth wooden beam 25.

[0055] [Operation of this embodiment] As a reference example of the frame structure 10 for the upper part of the room 5 of the large space SA, a frame structure 10 including a plurality of steel beams 11 arranged parallel to one another is conceivable. In this case, each of the plurality of steel beams 11 is supported at both ends by wooden columns. However, in this case, three or more steel beams 11 may be required to form the large space SA. This may increase construction costs.

[0056] In this embodiment, a steel beam 11 is arranged so as to span the large space SA in a plan view. A first wooden beam 21 is then arranged at the middle of the steel beam 11 so as to be perpendicular to the steel beam 11. The first wooden beam 21 is connected to the steel beam 11 by a first connecting metal member 31. This makes it possible to configure a room 5 of the large space SA that is larger than the large space SA that can be configured with one steel beam 11, and also prevents an increase in the number of steel beams 11.

[0057] Furthermore, in this embodiment, the steel beam 11 is longer than the first wooden beam 21. In other words, the first wooden beam 21 is shorter than the steel beam 11. This has the following effect. As a reference example, consider an example in which the positions of the steel beam 11 and the first wooden beam 21 are swapped in this embodiment. In this case, the first wooden beam 21 is longer than the steel beam 11. In the frame structure 10 of this reference example, there is a risk that the first wooden beam 21 will bend more than in the frame structure 10 of the embodiment. Therefore, by adopting a structure in which the steel beam 11 is longer than the first wooden beam 21, as in the frame structure 10 of the embodiment, it is easier to create a large space SA below the steel beam 11.

[0058] In this embodiment, one end of the first wooden beam 21 is connected to the steel beam 11, and the other end of the first wooden beam 21 is connected to the intermediate wooden column 40. In this way, the frame structure 10 includes wooden columns. This allows the number of steel members to be reduced compared to when steel pipes or H-shaped steel members are used as columns.

[0059] [Effects of this embodiment] The effects of this embodiment will be described. (1) The frame structure 10 includes a steel beam 11, a first wooden beam 21 that is perpendicular to the steel beam 11 at the middle of the steel beam 11, and a first connecting metal fitting 31 that connects the steel beam 11 and the first wooden beam 21. The steel beam 11 is longer than the first wooden beam 21. With this frame structure 10, a frame that covers the upper part of the large space SA can be constructed without placing any columns in the room 5. Furthermore, the large space SA can be constructed with fewer steel beams 11 than when multiple steel beams 11 are arranged in parallel. In short, the number of steel beams 11 can be reduced in the frame structure 10 that covers the upper part of the large space SA without placing any columns in the room 5.

[0060] (2) The frame structure 10 comprises a steel beam 11, a first wooden beam 21, two second wooden beams 22, an intermediate wooden column 40 disposed between the two second wooden beams 22, and a second connecting hardware 32 connecting the first wooden beam 21 and the intermediate wooden column 40. The two second wooden beams 22 are disposed parallel to the steel beam 11 and aligned in a straight line. The length of the steel beam 11 is longer than the combined length of the two second wooden beams 22. This configuration allows a large space SA to be formed below the steel beam 11.

[0061] (3) In the framework structure 10, both ends of the first wooden beam 21 have the same end face structure. The connection portion 31C of the first connector 31 to the first wooden beam 21 has the same structure as the connection portion 32C of the second connector 32 to the first wooden beam 21.

[0062] According to this configuration, since each end of the first wooden cross member 21 has the same end face structure, the processing of the first wooden cross member 21 can be made more efficient than when each end of the first wooden cross member 21 has a different end face structure.

[0063] It also has the following effect: In a frame structure 10 that includes steel and wood, if the steel and wood components have completely different connection structures, the number of steps required to process the steel and wood components increases, as well as the number of steps required to assemble the frame structure 10. In this regard, in this embodiment, the end face of the first wooden beam 21 that connects to the wood and the end face that connects to the steel components share a common connection structure. This allows for streamlining of the number of steps required for processing and assembly.

[0064] (4) The frame structure 10 includes a steel beam 11, a first wooden beam 21, two second wooden beams 22, an intermediate wooden column 40 disposed between the two second wooden beams 22, and a second connector metal 32 connecting the first wooden beam 21 and the intermediate wooden column 40. The frame structure 10 further includes a third wooden beam 23, an additional steel beam 12, a third connector metal 33 connecting the steel beam 11 and the third wooden beam 23, and a fourth connector metal 34 connecting the additional steel beam 12 and the third wooden beam 23. The third wooden beam 23 is perpendicular to the steel beam 11 and is disposed on the opposite side of the steel beam 11 from the first wooden beam 21. The additional steel beam 12 is arranged parallel to the steel beam 11 and is arranged on the opposite side of the second wooden beam 22 from the steel beam 11. With this configuration, a large space SA can be formed under the steel beam 11 and the additional steel beam 12.

[0065] (5) The frame structure 10 includes a steel beam 11, a first wooden beam 21, two second wooden beams 22, an intermediate wooden post 40, a first wooden post 41, a second wooden post 42, a fourth wooden beam 24, a fifth wooden beam 25, a third wooden post 43, and a fourth wooden post 44. This configuration reduces the cost of the frame structure 10 by using wooden posts.

[0066] (6) In the frame structure 10, the steel beam 11 has a stiffener 18. The first connecting hardware 31 has a base portion 31A, a fastening portion 31B, and a connecting portion 31C that connects to the first wooden beam 21. The connecting portion 31C has an insertion portion 31D that is inserted into a slit 27 provided on the end face of the first wooden beam 21. With this configuration, the first connecting hardware 31 can connect the first wooden beam 21, which has the slit 27, to the steel beam 11.

[0067] (7) The building 1 comprises a room 5 and a frame structure 10 of any one of (1) to (6) above, which is provided around the room 5. With this configuration, a large space SA can be constructed using a small number of steel beams 11.

[0068] <Modification> The above-described embodiments are examples of possible forms of the frame structure 10 and the building 1, and are not intended to limit the forms. The frame structure 10 and the building 1 may take forms different from those illustrated in the above-described embodiments. Examples of such forms include forms in which part of the configuration of the embodiments is replaced, modified, or omitted, or forms in which new configurations are added to the embodiments. Modified examples of the embodiments are shown below.

[0069] In this embodiment, the frame structure 10 includes one first wooden beam 21, but there is no limit to the number of first wooden beams 21. The frame structure 10 may include multiple first wooden beams 21.

[0070] In this embodiment, the frame structure 10 is provided with an additional steel beam 12, but the additional steel beam 12 may be omitted from the frame structure 10. Also, in the frame structure 10 of this embodiment, a wooden beam may be used instead of the additional steel beam 12. In this case, the wooden beam may be supported by a column. The frame structure 10 can be modified depending on the room 5 in which the steel beam 11 is placed and the plan around the room 5.

[0071] In this embodiment, there are no limitations on the structure of the steel beams 11 in the framework structure 10. The steel beams 11 may be formed from a pair of channel steels.

[0072] This specification discloses the following techniques: [Appendix 1] Appendix 1 is a frame structure. The frame structure is a frame structure around a room in a building. The frame structure comprises a steel beam, a first wooden beam that is perpendicular to the steel beam at the middle of the steel beam, and a first connecting metal that connects the steel beam and the first wooden beam. The steel beam is longer than the first wooden beam.

[0073] [Appendix 2] The frame structure described in Appendix 1 further includes two second wooden beams arranged parallel to the steel beam and aligned in a straight line, an intermediate wooden column arranged between the two second wooden beams, and a second connecting metal fitting connecting the first wooden beam and the intermediate wooden column. The length of the steel beam is longer than the combined length of the two second wooden beams.

[0074] [Appendix 3] In the framework structure described in Appendix 2, both ends of the first wooden cross member have the same end face structure. The connection portion of the first connector metal to the first wooden cross member has the same structure as the connection portion of the second connector metal to the first wooden cross member.

[0075] [Appendix 4] The frame structure described in Appendix 2 further comprises a third wooden cross member that is perpendicular to the steel cross member and is positioned on the opposite side of the steel cross member from the first wooden cross member, an additional steel cross member that is positioned parallel to the steel cross member and is positioned on the opposite side of the steel cross member from the second wooden cross member, a third connecting metal member that connects the steel cross member and the third wooden cross member, and a fourth connecting metal member that connects the additional steel cross member and the third wooden cross member.

[0076] [Appendix 5] The frame structure described in Appendix 2 further includes a first wooden column supporting one end of the steel cross member, a second wooden column supporting the other end of the steel cross member, a fourth wooden column arranged parallel to the first wooden column and connected to the first wooden column, a fifth wooden column arranged parallel to the first wooden column and connected to the second wooden column, a third wooden column supporting the fourth wooden column and one of the two second wooden columns, and a fourth wooden column supporting the fifth wooden column and one of the two second wooden columns.

[0077] [Appendix 6] In the frame structure described in Appendix 1, the steel beam has a stiffener. The first connector hardware has a base portion, a fastening portion that protrudes from a first surface of the base portion and is fastened to the stiffener, and a connecting portion that is connected to the first wooden beam. The connecting portion has an insertion portion that passes through a slit provided on the end surface of the first wooden beam.

[0078] [Appendix 7] Supplementary Note 7 is a building. The building comprises a room and a frame structure according to any one of Supplementary Notes 1 to 6 provided around the room. [Explanation of symbols]

[0079] 1...building, 5...room, 10...frame structure, 11...steel beam, 12...additional steel beam, 18...stiffener, 21...first wooden beam, 22...second wooden beam, 23...third wooden beam, 24...fourth wooden beam, 25...fifth wooden beam, 27...slit, 31...first connecting hardware, 31A...base part, 31B...fastening part, 31C...connection part, 31D...insertion part, 31R...first surface, 31S...second surface, 32...second connecting hardware, 32A...base part, 32C...connecting part, 32D...insertion part, 33...third connecting hardware, 34...fourth connecting hardware, 35A...base part, 35B...fastening part, 40...intermediate wooden pillar, 41...first wooden pillar, 42...second wooden pillar, 43...third wooden pillar, 44...fourth wooden pillar.

Claims

1. A frame structure around a room in a building, Steel beams and a first wooden beam perpendicular to the steel beam at an intermediate portion of the steel beam; a first connecting hardware that connects the steel beam and the first wooden beam; The steel beam is longer than the first wooden beam. Frame structure.

2. Two second wooden cross members arranged parallel to the steel cross member and aligned in a straight line; The system further includes an intermediate wooden column disposed between the two second wooden beams, and a second connecting hardware connecting the first wooden beam and the intermediate wooden column. The length of the steel cross member is longer than the combined length of the two second wooden cross members. The framework structure according to claim 1.

3. Each end of the first wooden beam has the same end surface structure, The connection portion of the first connecting hardware to the first wooden cross member has the same structure as the connection portion of the second connecting hardware to the first wooden cross member. The framework structure according to claim 2.

4. a third wooden beam that is perpendicular to the steel beam and is located on the opposite side of the steel beam from the first wooden beam; an additional steel beam arranged parallel to the steel beam and on the opposite side of the second wooden beam with respect to the steel beam; a third connecting hardware that connects the steel cross member and the third wooden cross member; Further provided is a fourth connecting hardware that connects the additional steel cross member and the third wooden cross member. The framework structure according to claim 2.

5. a first wooden column supporting one end of the steel beam; a second wooden pillar supporting the other end of the steel beam; a fourth wooden cross member arranged parallel to the first wooden cross member and connected to the first wooden column; a fifth wooden cross member arranged parallel to the first wooden cross member and connected to the second wooden column; a third wooden column supporting the fourth wooden cross member and one of the two second wooden cross members; a fourth wooden post supporting the fifth wooden cross member and one of the two second wooden cross members; The framework structure according to claim 2.

6. The steel beam has a stiffener, The first connecting hardware has a base portion, a fastening portion provided to protrude from a first surface of the base portion and fastened to the stiffener, and a connecting portion connected to the first wooden cross member, The connecting portion has an insertion portion that is inserted into a slit provided on an end surface of the first wooden beam. The framework structure according to claim 1.

7. A room and a framework structure according to any one of claims 1 to 6 provided around the room. architecture.

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