Skeleton

Abstract

To provide a technique capable of achieving both good workability of construction of a wall to a region surrounded with columns and beams and good durability / strength of the wall.SOLUTION: A skeleton is configured such that: an insert plates 52 is erected on an upper surface of a horizontal member 31; a slit 42 is inserted into a slit 42 of a lower end of a wooden column 41; a connector 55 penetrates through the insert plate 52 and is hammered into the wooden column 41; a side surface of the wooden column 41 abuts against a flange 63 to connect the wooden column 41 to the flange 63; an insert bar 152 is erected on the upper surface of the horizontal member 31 and the insert bar 152 is inserted into a mortise 47 in a lower end of a wooden column 46; connectors 155a, 155b penetrate through the insert bar 152 and are hammered into the wooden column 46; an insert plate 163 is inserted into a slit 147 in an upper end of the wooden column 46; and a connector 165 penetrates through the insert plate 163 and is hammered into the wooden column 46.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a building structure.

Background Art

[0002] Patent Document 1 discloses a ramen noodle shop structure composed of wooden columns and steel beams. The steel beam is made of H-shaped steel, and a pair of pressure plates are provided on the lower flange of the steel beam facing each other. The head of the wooden column under the steel beam is sandwiched between these pressure plates, and a through bolt penetrates these pressure plates and the head, and a pair of nuts are fastened to both ends of the through bolt so as to sandwich these pressure plates and the head. The leg of the wooden column above the steel beam is similarly joined to the upper flange of the steel column. Adjacent wooden columns are similarly joined to the steel beam. Usually, a wall is provided in the area surrounded by the columns and the beam.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, it is desired to achieve both good workability in constructing a wall in the area surrounded by columns and beams and high durability and strength of the wall. Therefore, an object of the present invention is to provide a technique capable of achieving both good workability in constructing a wall in the area surrounded by columns and beams and high durability and strength of the wall.

Means for Solving the Problems

[0005] The reference numerals shown in the following parentheses are referred to in FIGS. 1 to 17.

[0006] According to the invention of claim 1, a building structure (1), A steel ceiling beam (27) installed horizontally, A wooden horizontal member (31) disposed below the ceiling beam (27), A first wooden pillar (41) and a second wooden pillar (46) erected between the horizontal member (31) and the ceiling beam (27) at intervals, A wall panel (71) provided in a region surrounded by the first wooden pillar (41), the second wooden pillar (46), the ceiling beam (27) and the horizontal member (31), and joined to the ceiling beam (27), the horizontal member (31), the first wooden pillar (41) and the second wooden pillar (46), A flange (63) joined to the lower surface of the ceiling beam (27) and hanging down from the ceiling beam (27), A first joint fitting (50) fixed on the horizontal member (31) and having a first insert plate (52), A second insert plate (163) joined to the lower surface of the ceiling beam (27) and hanging down from the ceiling beam (27), A second joint fitting (150) fixed on the horizontal member (31) and having an insert bar (152), The first insert plate (52) is erected with respect to the upper surface of the horizontal member (31), a first slit (42) is cut out in the axial direction of the first wooden pillar (41) from the lower end of the first wooden pillar (41), the first insert plate (52) is inserted into the first slit (42), and a first joining tool (55) penetrates the first insert plate (52) and is driven into the first wooden pillar (41), The side surface of the first wooden pillar (41) abuts against the flange (63), and the first wooden pillar (41) is joined to the flange (63), The insert bar (152) is erected with respect to the upper surface of the horizontal member (31), a hozo hole (47) is drilled in the axial direction of the second wooden pillar (46) from the lower end of the second wooden pillar (46), the insert bar (152) is inserted into the hozo hole (47), and a second joining tool (155a or 155b) penetrates the insert bar (152) and is driven into the second wooden pillar (46), The second slit (147) is axially notched from the upper end of the second wooden post (46), the second insert plate (163) is inserted into the second slit (147), and the third fastener (165) penetrates the second insert plate (163) and is driven into the second wooden post (46). A housing (1) is provided, characterized in that...

[0007] According to the invention according to claim 1 as described above, the flange (63) is joined to the lower surface of the ceiling beam (27), the flange (63) hangs down from the ceiling beam (27), the first insert plate (52) of the first splice fitting (50) is erected with respect to the upper surface of the horizontal member (31), and the first slit (42) is notched in the axial direction of the first wooden column (41) from the lower end of the first wooden column (41). Therefore, when arranging the first wooden column (41) between the previously erected ceiling beam (27) and the horizontal member (31), the first wooden column (41) is inclined with respect to the vertical direction and the first insert plate (52) is inserted into the first slit (42), and then the posture of the first wooden column (41) is made vertical, and the first wooden column (41) can be brought into contact with the flange (63). That is, even if the length of the first wooden column (41) has an error from the interval between the ceiling beam (27) and the horizontal member (31), the first insert plate (52), the first slit (42), and the flange (63) contribute to reliably temporarily fixing the first wooden column (41) between the ceiling beam (27) and the horizontal member (31) with the first wooden column (41) erected. By joining the first wooden column (41) temporarily fixed between the ceiling beam (27) and the horizontal member (31) to the flange (63), the first wooden column (41) is permanently fixed to the ceiling beam (27). By driving the first joining tool (55) through the first insert plate (52) and into the first wooden column (41), the first wooden column (41) is permanently fixed to the horizontal member (31). Therefore, the flange (63), the first insert plate (52), the first slit (42), and the first joining tool (55) contribute to building the first wooden column (41) under the previously erected ceiling beam (27). Since the first wooden column (41) is built after the erection of the ceiling beam (27), the workability related to the erection of the ceiling beam (27) is good, and the workability related to the building of the first wooden column (41) is good. On one hand, the insert bar (152) is erected with respect to the upper surface of the horizontal member (31), the hozo hole (47) is drilled axially from the lower end of the second wooden pillar (46) to the second wooden pillar (46), the insert bar (152) is inserted into the hozo hole (47), and the second joining tool (155a or 155b) penetrates the insert bar (152) and is driven into the second wooden pillar (46). Therefore, the second wooden pillar (46) is firmly joined to the horizontal member (31), and the pull-out strength of the second wooden pillar (46) is high. Further, the second slit (147) is notched axially from the upper end of the second wooden pillar (46) to the second wooden pillar (46), the second insert plate (163) hangs down from the ceiling beam (27), the second insert plate (163) is inserted into the second slit (147), and the third joining tool (165) penetrates the second insert plate (163) and is driven into the second wooden pillar (46). Therefore, the second wooden pillar (46) is firmly joined to the horizontal member (31), and the pull-out strength of the second wooden pillar (46) is high. Since the wall panel (71) is joined to the second wooden pillar (46) having high pull-out strength and the wall panel (71) is joined to the first wooden pillar (41) having good workability, it is possible to achieve both good workability in constructing a wall in the area surrounded by the ceiling beam (27), the horizontal member (31), the first wooden pillar (41) and the second wooden pillar (46) and high durability and strength of the wall.

[0008] According to the invention according to claim 2, a building frame (1), a steel ceiling beam (27) installed horizontally, a wooden horizontal member (31) disposed below the ceiling beam (27), a first wooden pillar (41) and a second wooden pillar (46) built between the horizontal member (31) and the ceiling beam (27) at intervals and joined to the horizontal member (31), A wall panel (71) is provided in a region surrounded by the first wooden column (41), the second wooden column (46), the ceiling beam (27), and the horizontal member (31), and is joined to the ceiling beam (27), the horizontal member (31), the first wooden column (41), and the second wooden column (46). A flange (63) joined to the lower surface of the ceiling beam (27) and hanging down from the ceiling beam (27). An insert plate (163) joined to the lower surface of the ceiling beam (27) and hanging down from the ceiling beam (27), and comprising: The side surface of the first wooden column (41) abuts against the flange (63), and the first wooden column (41) is joined to the flange (63). A slit (147) is cut out in the axial direction of the second wooden column (46) from the upper end of the second wooden column (46), the insert plate (163) is inserted into the slit (147), and a joining tool (165) penetrates the insert plate and is driven into the second wooden column (46). A housing (1) is provided, characterized by the above.

[0009] According to the invention according to claim 2 as described above, since the flange (63) is joined to the lower surface of the ceiling beam (27) and the flange (63) hangs down from the ceiling beam (27), when arranging the first wooden post (41) between the previously erected ceiling beam (27) and the horizontal member (31), the first wooden post (41) can be made oblique with respect to the vertical direction, and then the posture of the first wooden post (41) can be made vertical and the first wooden post (41) can be brought into contact with the flange (63). That is, even if the length of the first wooden post (41) has an error from the interval between the ceiling beam (27) and the horizontal member (31), the flange (63) contributes to reliably temporarily fixing the first wooden post (41) between the ceiling beam (27) and the horizontal member (31) by standing the first wooden post (41). By joining the first wooden post (41) temporarily fixed between the ceiling beam (27) and the horizontal member (31) to the flange (63), the first wooden post (41) is firmly fixed to the ceiling beam (27). Therefore, the flange (63) contributes to building the first wooden post (41) under the previously erected ceiling beam (27). Since the first wooden post (41) is built after the erection of the ceiling beam (27), the workability related to the erection of the ceiling beam (27) is good and the workability related to the building of the first wooden post (41) is good. On the other hand, since the slit (147) is notched in the axial direction of the second wooden post (46) from the upper end of the second wooden post (46), the insert plate (163) hangs down from the ceiling beam (27), the insert plate (163) is inserted into the slit (147), and the joining tool (165) penetrates the insert plate (163) and is driven into the second wooden post (46), the second wooden post (46) is firmly joined to the horizontal member (31) and the pull-out strength of the second wooden post (46) is high. Since the wall panel (71) is joined to the second wooden post (46) with high pull-out strength and the wall panel (71) is joined to the first wooden post (41) with good workability, it is possible to achieve both good workability in constructing a wall in the area surrounded by the ceiling beam (27), the horizontal member (31), the first wooden post (41) and the second wooden post (46) and high durability and strength of the wall.

[0010] According to the invention according to claim 3, a building structure comprising a steel ceiling beam (27) installed horizontally, a wooden horizontal member (31) disposed below the ceiling beam (27), first wooden columns (41) and second wooden columns (46) erected at intervals between the horizontal member (31) and the ceiling beam (27) and joined to the ceiling beam (27) and the horizontal member (31) respectively, a wall panel (71) provided in a region surrounded by the first wooden column (41), the second wooden column (46), the ceiling beam (27) and the horizontal member (31) and joined to the ceiling beam (27), the horizontal member (31), the first wooden column (41) and the second wooden column (46), a flange (63) joined to the lower surface of the ceiling beam (27) and hanging down from the ceiling beam (27), a splicing fitting fixed on the horizontal member (31) and having an insert bar (152), wherein a side surface of the first wooden column (41) abuts against the flange (63) and the first wooden column (41) is joined to the flange (63), the insert bar (152) is erected with respect to the upper surface of the horizontal member (31), a mortise hole (47) is drilled in the axial direction of the second wooden column (46) from the lower end of the second wooden column (46), the insert bar (152) is inserted into the mortise hole (47), and a joining tool penetrates the insert bar (152) and is driven into the second wooden column (46), characterized in that a structure is provided.

[0011] According to the invention according to claim 3 as described above, since the flange (63) is joined to the lower surface of the ceiling beam (27) and the flange (63) hangs down from the ceiling beam (27), when arranging the first wooden post (41) between the previously installed ceiling beam (27) and the horizontal member (31), the first wooden post (41) can be made oblique with respect to the vertical direction, and then the posture of the first wooden post (41) can be made vertical and the first wooden post (41) can be brought into contact with the flange (63). That is, even if the length of the first wooden post (41) has an error from the interval between the ceiling beam (27) and the horizontal member (31), the flange (63) contributes to reliably temporarily fixing the first wooden post (41) between the ceiling beam (27) and the horizontal member (31) by standing the first wooden post (41). By joining the first wooden post (41) temporarily fixed between the ceiling beam (27) and the horizontal member (31) to the flange (63), the first wooden post (41) is permanently fixed to the ceiling beam (27). Therefore, the flange (63) contributes to building the first wooden post (41) under the previously installed ceiling beam (27). Since the first wooden post (41) is built after the erection of the ceiling beam (27), the workability related to the erection of the ceiling beam (27) is good, and the workability related to the building of the first wooden post (41) is good. On the other hand, since the insert bar (152) is erected with respect to the upper surface of the horizontal member (31), the hozo hole (47) is drilled in the axial direction of the second wooden post (46) from the lower end of the second wooden post (46), the insert bar (152) is inserted into the hozo hole (47), and the joining tool (155a or 155b) penetrates the insert bar (152) and is driven into the second wooden post (46), the second wooden post (46) is firmly joined to the horizontal member (31), and the pull-out strength of the second wooden post (46) is high. Since the wall panel (71) is joined to the second wooden post (46) with high pull-out strength and the wall panel (71) is joined to the first wooden post (41) with good workability, it is possible to achieve both good workability in constructing a wall in the area surrounded by the ceiling beam (27), the horizontal member (31), the first wooden post (41), and the second wooden post (46) and high durability and strength of the wall.

[0012] According to the invention according to claim 4, a building frame, a steel ceiling beam (27) installed horizontally, a wooden horizontal member (31) disposed below the ceiling beam (27), first wooden columns (41) and second wooden columns (46) that are built between the horizontal member (31) and the ceiling beam (27) at intervals and are respectively joined to the horizontal member (31) and the ceiling beam (27), a wall panel (71) provided in a region surrounded by the first wooden column (41), the second wooden column (46), the ceiling beam (27), and the horizontal member (31) and joined to the ceiling beam (27), the horizontal member (31), the first wooden column (41), and the second wooden column (46), a joint fitting (50) fixed on the horizontal member (31) and having a first insert plate (52), a second insert plate (163) joined to the lower surface of the ceiling beam (27) and hanging down from the ceiling beam (27), and the first insert plate (52) is erected with respect to the upper surface of the horizontal member (31), a first slit (42) is cut out in the axial direction of the first wooden column (41) from the lower end of the first wooden column (41), the first insert plate (52) is inserted into the first slit (42), and a first joining tool (55) penetrates the first insert plate (52) and is driven into the first wooden column (41), a second slit (147) is cut out in the axial direction of the second wooden column (46) from the upper end of the second wooden column (46), the second insert plate (163) is inserted into the second slit (147), and a second joining tool (165) penetrates the second insert plate (163) and is driven into the second wooden column (46). A frame characterized by the above is provided.

[0013] According to the invention according to claim 4 as described above, since the first insert plate (52) of the splicing fitting (50) is erected with respect to the upper surface of the horizontal member (31), and the first slit (42) is notched in the axial direction of the first wooden column (41) from the lower end of the first wooden column (41), when arranging the first wooden column (41) between the previously erected ceiling beam (27) and the horizontal member (31), the first wooden column (41) can be inclined with respect to the vertical direction and the first insert plate (52) can be inserted into the first slit (42), and then the posture of the first wooden column (41) can be made vertical. That is, even if the length of the first wooden column (41) has an error from the interval between the ceiling beam (27) and the horizontal member (31), the first insert plate (52) and the first slit (42) contribute to the fact that the first wooden column (41) can be surely temporarily fixed between the ceiling beam (27) and the horizontal member (31) by standing it up. By driving the first joining tool (55) through the first insert plate (52) and into the first wooden column (41), the first wooden column (41) temporarily fixed between the ceiling beam (27) and the horizontal member (31) is firmly fixed to the horizontal member (31). Therefore, the first insert plate (52), the first slit (42), and the first joining tool (55) contribute to building the first wooden column (41) under the previously erected ceiling beam (27). Since the first wooden column (41) is built after the erection of the ceiling beam (27), the workability related to the erection of the ceiling beam (27) is good, and the workability related to the building of the first wooden column (41) is good. On the other hand, since the second slit (147) is notched in the axial direction of the second wooden column (46) from the upper end of the second wooden column (46), the second insert plate (163) hangs down from the ceiling beam (27), the second insert plate (163) is inserted into the second slit (147), and the second joining tool (165) is driven through the second insert plate (163) and into the second wooden column (46), the second wooden column (46) is firmly joined to the horizontal member (31), and the pull-out strength of the second wooden column (46) is high. Since the wall panel (71) is joined to the second wooden column (46) having high extraction strength and the wall panel (71) is joined to the first wooden column (41) having good workability, it is possible to achieve both good workability in constructing a wall in the region surrounded by the ceiling beam (27), the horizontal member (31), the first wooden column (41) and the second wooden column (46) and high durability and strength of the wall.

[0014] According to the invention according to claim 5, a building frame, a steel ceiling beam (27) installed horizontally, a wooden horizontal member (31) disposed below the ceiling beam (27), first and second wooden columns (41) and (46) built between the horizontal member (31) and the ceiling beam (27) at intervals and joined to the ceiling beam (27), a wall panel (71) provided in a region surrounded by the first wooden column (41), the second wooden column (46), the ceiling beam (27) and the horizontal member (31) and joined to the ceiling beam (27), the horizontal member (31), the first wooden column (41) and the second wooden column (46), a first fitting (50) having an insert plate and fixed on the horizontal member (31), a second fitting (150) having an insert bar (152) and fixed on the horizontal member (31), the insert plate is erected with respect to the upper surface of the horizontal member (31), a slit is notched in the axial direction of the first wooden column (41) from the lower end of the first wooden column (41), the insert plate is inserted into the slit, and a first joining tool penetrates the insert plate and is driven into the first wooden column (41), the insert bar (152) is erected with respect to the upper surface of the horizontal member (31), a hozo hole (47) is drilled in the axial direction of the second wooden column (46) from the lower end of the second wooden column (46), the insert bar (152) is inserted into the hozo hole (47), and a second joining tool (155a or 155b) penetrates the insert bar (152) and is driven into the second wooden column (46). A body characterized by the above is provided.

[0015] According to the invention according to claim 5 as described above, since the first insert plate (52) of the first joint fitting (50) is erected with respect to the upper surface of the horizontal member (31) and the first slit (42) is cut out in the axial direction of the first wooden pillar (41) from the lower end of the first wooden pillar (41), when arranging the first wooden pillar (41) between the previously erected ceiling beam (27) and the horizontal member (31), the first wooden pillar (41) can be inclined with respect to the vertical direction and the first insert plate (52) can be inserted into the first slit (42), and then the posture of the first wooden pillar (41) can be made vertical. That is, even if the length of the first wooden pillar (41) has an error from the interval between the ceiling beam (27) and the horizontal member (31), the first insert plate (52) contributes to reliably temporarily fixing the first wooden pillar (41) between the ceiling beam (27) and the horizontal member (31) in an erected state. By driving the first joint fitting (55) through the first insert plate (52) and into the first wooden pillar (41), the first wooden pillar (41) temporarily fixed between the ceiling beam (27) and the horizontal member (31) is firmly fixed to the horizontal member (31). Therefore, the first insert plate (52), the first slit (42), and the first joint fitting (55) contribute to building the first wooden pillar (41) under the previously erected ceiling beam (27). Since the first wooden pillar (41) is built after the erection of the ceiling beam (27), the workability related to the erection of the ceiling beam (27) is good and the workability related to the building of the first wooden pillar (41) is good. On the other hand, since the insert bar (152) is erected with respect to the upper surface of the horizontal member (31), the hozo hole (47) is drilled in the axial direction of the second wooden pillar (46) from the lower end of the second wooden pillar (46), the insert bar (152) is inserted into the hozo hole (47), and the second joint fitting (155a or 155b) is driven through the insert bar (152) and into the second wooden pillar (46), the second wooden pillar (46) is firmly joined to the horizontal member (31) and the pull-out strength of the second wooden pillar (46) is high. Since the wall panel (71) is joined to the second wooden pillar (46) with high pulling-out strength and the wall panel (71) is joined to the first wooden pillar (41) with good workability, it is possible to achieve both good workability in constructing a wall in the area surrounded by the ceiling beam (27), the horizontal member (31), the first wooden pillar (41) and the second wooden pillar (46), and high durability and strength of the wall.

[0016] According to the invention according to claim 6, a building frame according to claim 1, 2 or 3, wherein the upper part of the wall panel (71) abuts against the flange (63), and the upper part of the wall panel (71) is joined to the flange (63), so that the wall panel (71) is joined to the ceiling beam (27) via the flange (63). A building frame is provided, which is characterized by the above.

[0017] According to the invention according to claim 6 as described above, even if the height of the wall panel (71) has an error from the interval between the ceiling beam (27) and the horizontal member (31), the wall panel (71) can be joined to the ceiling beam (27) and the horizontal member (31).

Advantages of the Invention

[0018] According to the present invention, it is possible to achieve both good workability in constructing a wall in the area surrounded by the ceiling beam, the horizontal member, the first wooden pillar and the second wooden pillar, and high durability and strength of the wall.

Brief Description of the Drawings

[0019]

Figure 1

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Mode for Carrying Out the Invention

[0020] Hereinafter, embodiments will be described with reference to the drawings. The features and technical effects of the embodiments will be understood from the following detailed description and the drawings. However, the scope of the present invention is not limited to the embodiments disclosed below. Since the drawings are provided for illustrative purposes only, the scope of the present invention is not limited to the illustrations in the drawings.

[0021] <The First Embodiment> 1. Building Body FIG. 1 is a view showing the first floor portion of the building body 1 of a three-story building. The first floor portion of the building body 1 has a hybrid structure combining a steel frame structure and a wooden structure. The second and third floor portions of the building body 1 are wooden structures.

[0022] The building body 1 includes a foundation 10, steel columns 21, 23, floor beams 25, ceiling beams 27, a base 31, first wooden columns 41, second wooden columns 46, first splicing fittings 50, second splicing fittings 150, flanges 63, and walls 70, 80, 90 in the first floor portion. The walls 70, 80, 90 may be either the outer wall or the inner wall of the building.

[0023] The foundation 10 is constructed on the ground. The foundation 10 may be either a mat foundation or a raft foundation. The foundation 10 has footings 11, 13 that support the steel columns 21, 23 respectively. The footings 11, 12 are integrally provided on the foundation 10. The footings 11, 13 are spaced apart from each other.

[0024] The steel columns 21, 23 are made of square steel pipes. The steel columns 21, 23 are provided in a state of being erected on the footings 11, 13 respectively. The legs of the steel column 21 are fixed to the footing 11 in a state of being embedded in the footing 11, and the steel column 21 extends vertically upward from the footing 11. The legs of the steel column 23 are fixed to the footing 13 in a state of being embedded in the footing 13, and the steel column 23 extends vertically upward from the footing 13.

[0025] The floor beam 25 is made of H-shaped steel. Both ends of the floor beam 25 are fixed to the steel columns 21, 23 respectively, and the floor beam 25 is horizontally installed between the steel column 21 and the steel column 23. The floor beam 25 is placed on the foundation 10 and fixed to the foundation 10.

[0026] The ceiling beam 27 is made of H-shaped steel. The ceiling beam 27 is horizontally arranged above the floor beam 25. Both ends of the floor beam 25 are fixed to the steel columns 21, 23 respectively, and the floor beam 25 is horizontally installed between the steel column 21 and the steel column 23.

[0027] In addition to the steel columns 21 and 23, floor beams 25, and ceiling beams 27 shown in FIG. 1, the body 1 is provided with steel columns, floor beams, and ceiling beams in the first floor portion. The ramen structure is constructed by framing these steel columns, floor beams, and ceiling beams using the steel frame construction method. The steel columns 21 and 23, floor beams 25, and ceiling beams 27 are part of this ramen structure. Floor joists may be installed between the floor beams. Ceiling joists may be installed between the ceiling beams. A joist refers to a beam installed between large beams to transmit the floor load to the large beams. A large beam refers to a beam installed between columns. The floor beams 25 and ceiling beams 27 are large beams.

[0028] The base 31 is made of wooden square timbers. The base 31 is made of solid wood or laminated wood. The base 31 is placed on the floor beam 25 and fixed to the floor beam 25 by fasteners. The base 31 is a horizontal member provided horizontally along the floor beam 25. Both ends of the base 31 may be fixed to the steel columns 21 and 23 respectively, or may not be fixed to the steel columns 21 and 23. Note that the floor beam 25 may not be provided, and the base 31 may be placed on the foundation 10 and fixed to the foundation 10.

[0029] The wooden columns 41 and 46 are made of wooden square timbers. The wooden columns 41 and 46 are made of solid wood or laminated wood. The wooden columns 41 and 46 are provided in a state of being erected on the base 31 between the steel columns 21 and 23. The steel column 21, wooden column 41, wooden column 46, and steel column 23 are arranged at intervals in sequence.

[0030] The wooden column 41 is fixed to the base 31. With reference to FIGS. 1 and 2, the joint structure between the wooden column 41 and the base 31 will be described. FIG. 2 is an exploded perspective view of the joint structure between the wooden column 41 and the base 31. FIG. 2 is an exploded perspective view of the area II shown in FIG. 1. As shown in FIGS. 1 and 2, the splice fitting 50 is fixed on the base 31 by bolts or screws, etc., and the wooden column 41 is fixed to the splice fitting 50 by the joining tool 55.

[0031] The joint fitting 50 has a base plate 51 and an insert plate 52. The insert plate 52 is provided substantially perpendicular to the base plate 51, and the insert plate 52 and the base plate 51 are integrated. The base plate 51 is laid on the base 31 and fixed on the base 31 by a fastener such as a screw or a bolt. The insert plate 52 stands on the upper surface of the base 31. The insert plate 52 has a plurality of through holes 53 passing through the insert plate 52.

[0032] On the other hand, in the wooden column 41, a slit 42 is cut out in the axial direction of the wooden column 41 from the lower end of the wooden column 41, and the slit 42 opens at the lower end and two opposite side surfaces of the wooden column 41. A plurality of insertion holes 43 penetrate from the other side surface of the wooden column 41 across the slit 42 to the opposite side surface in a direction parallel to the two opposite side surfaces. The fact that the slit 42 opens on the side surface of the wooden column 41 contributes to the insertion of the insert plate 52 into the slit 42 while moving the wooden column 41 laterally.

[0033] The lower end of the wooden column 41 is directed toward the base plate 51 on the base 31, and the insert plate 52 is inserted into the slit 42. The through holes 53 of the insert plate 52 are coaxial with the insertion holes 43. A joining tool 55 is driven into the wooden column 41 from the wooden column 41 and penetrates the insert plate 52. Specifically, the joining tool 55 is inserted into and fitted in the insertion holes 43 of the wooden column 41 and the through holes 53 of the insert plate 52. The joining tool 55 contributes to fixing the wooden column 41 to the insert plate 52. The joining tool 55 is made of metal, for example, steel. The joining tool 55 may be made of wood. The joining tool 55 is, for example, a split bolt, a dowel, a dowel screw, a pin, or a drift pin. The whole of the joining tool 55 may fit into the insertion holes 43 and the through holes 53, and the joining tool 55 may not protrude from the insertion holes 43.

[0034] In the example shown in FIG. 2, the insert plate 52 is parallel to the axial direction (longitudinal direction) of the base 31, and the width direction of the slit 42 is perpendicular to the axial direction of the base 31. On the other hand, as in the example shown in FIG. 3, the insert plate 52 may be perpendicular to the axial direction of the base 31, and the width direction of the slit 42 may be parallel to the axial direction of the base 31.

[0035] As shown in FIG. 1, the wooden pillar 41 is fixed to the ceiling beam 27. With reference to FIGS. 1 and 4, the joining structure between the wooden pillar 41 and the ceiling beam 27 will be described. FIG. 4 is an exploded view of the joining structure between the wooden pillar 41 and the ceiling beam. FIG. 4 is an exploded perspective view of the area VI shown in FIG. 1. As shown in FIGS. 1 and 4, a flange 63 parallel to the axial direction of the ceiling beam 27 hangs down from the lower surface of the ceiling beam 27 and is fixed to the lower surface of the ceiling beam 27, and the wooden pillar 41 is applied to the flange 63 and fixed to the flange 63.

[0036] The flange 63 is constituted by one web 62 of the two webs 61, 62 of the steel angle 60. Specifically, the axial direction (longitudinal direction) of the angle 60 is parallel to the axial direction of the ceiling beam 27, the other web 61 of the angle 60 is in surface contact with the lower surface of the ceiling beam 27 and welded to the lower surface thereof, or fixed by high-strength bolt joining or the like, one web 62 of the angle 60 hangs vertically from the lower surface of the ceiling beam 27, and the other web 62 corresponds to the flange 63.

[0037] The side surface of the wooden pillar 41 is applied to the flange 63, and the wooden pillar 41 is fixed to the flange 63 by fasteners 65 such as screws. The upper end of the wooden pillar 41 may be separated from the lower surface of the ceiling beam 27, or may be in contact with the lower surface thereof.

[0038] As shown in FIG. 1, the wooden pillar 46 is fixed to the base 31. With reference to FIGS. 1 and 5, the joining structure between the wooden pillar 46 and the base 31 will be described. FIG. 5 is an exploded perspective view of the joining structure between the wooden pillar 46 and the base 31. FIG. 5 is an exploded perspective view of the area V shown in FIG. 1. As shown in FIGS. 1 and 5, the splicing fitting 150 is fixed on the base 31 by bolts or screws, etc., and the wooden pillar 46 is fixed to the splicing fitting 150 by the joining tools 155a and 155b.

[0039] The splicing fitting 150 includes a base plate 151 and an insert bar 152. The base plate 151 and the insert bar 152 are made of metal, for example, steel. The base plate 151 is a pedestal provided in a plate shape. The base plate 151 is thicker than the base plate 51 of the splicing fitting 50, and the rigidity of the base plate 151 is higher than the rigidity of the base plate 51. The insert bar 152 is a column provided in a circular rod shape. The insert bar 152 may be provided in a tubular shape having a hollow, or may be a solid shape without a hollow. The insert bar 152 is provided in a state of being erected at the center of the base plate 151. The insert bar 152 and the base plate 151 are integrated. The diameter of the insert bar 152 is larger than the thickness of the insert plate 52 of the splicing fitting 50, the rigidity of the insert bar 152 is higher than the rigidity of the insert plate 52, and the bending resistance of the insert bar 152 is higher than the bending resistance of the insert plate 52. The insert bar 152 has a plurality of through holes 153a and one through hole 153b. The through holes 153a are formed in the insert bar 152 so as to be orthogonal to the axial direction of the insert bar 152. The through hole 153b is formed in the insert bar 152 so as to be orthogonal to the axial direction of the insert bar 152. A plurality of through holes 153b may be formed in the insert bar 152. The penetrating direction of the through hole 153a is perpendicular to the penetrating direction of the through hole 153b. The through holes 153a and the through hole 153b are arranged alternately in the axial direction of the insert bar 152.

[0040] The base plate 151 is laid on the base 31 and fixed on the base 31 by fasteners such as screws or bolts. The insert bar 152 is erected with respect to the upper surface of the base 31.

[0041] On the other hand, in the wooden post 46, the hozo hole 47 is drilled axially in the wooden post 46 from the lower end of the wooden post 46 into the interior of the wooden post 46, and the hozo hole 47 opens at the lower end of the wooden post 46. A plurality of insertion holes 48a penetrate from the side surface of the wooden post 46 across the hozo hole 47 to the opposite side surface, and the insertion holes 48a are orthogonal to the axial direction of the wooden post 46. One insertion hole 48b penetrates from the other side surface of the wooden post 46 across the hozo hole 47 to the opposite side surface, and the insertion hole 48b is orthogonal to the axial direction of the wooden post 46. A plurality of insertion holes 48b may be formed in the wooden post 46. The penetration direction of the insertion hole 48a is perpendicular to the penetration direction of the insertion hole 48b. The insertion holes 48a and the insertion holes 48b are alternately arranged in the axial direction of the wooden post 46.

[0042] The lower end of the wooden post 46 is directed toward the base plate 151 on the base 31, and the insert bar 152 is inserted into the hozo hole 47. The through hole 153a of the insert bar 152 is coaxial with the insertion hole 48a, and the through hole 153b of the insert bar 152 is coaxial with the insertion hole 48b. The joining tools 155a, 155b are driven into the wooden post 46 from the side surface of the wooden post 46 and penetrate the insert bar 152. Specifically, the joining tool 155a is inserted and fitted into the insertion hole 48a of the wooden post 46 and the through hole 153a of the insert bar 152, and the joining tool 155b is inserted and fitted into the insertion hole 48b of the wooden post 46 and the through hole 153b of the insert bar 152. The joining tools 155a, 155a contribute to fixing the wooden post 46 to the insert bar 152. The joining tools 155a, 155b are, for example, split bolts, dowels, dowel screws, pins or drift pins. The whole of the joining tool 155a fits into the insertion hole 48a and the through hole 153a, and the joining tool 155a may not protrude from the insertion hole 48a. The whole of the joining tool 155b fits into the insertion hole 48b and the through hole 153b, and the joining tool 155b may not protrude from the insertion hole 48b.

[0043] As shown in FIG. 1, the wooden column 46 is fixed to the ceiling beam 27. With reference to FIGS. 1 and 6, the joining structure between the wooden column 46 and the ceiling beam 27 will be described. FIG. 6 is an exploded perspective view of the joining structure between the wooden column 46 and the ceiling beam 27. FIG. 6 is an exploded perspective view of the area VI shown in FIG. 1. As shown in FIGS. 1 and 5, the splice fitting 150 is fixed on the base 31 by bolts or screws or the like, and the wooden column 46 is fixed to the splice fitting 150 by the joining tools 155a and 155b.

[0044] As shown in FIGS. 1 and 6, an insert plate 163 made of a steel plate is fixed to the lower surface of the ceiling beam 27 by welding or the like in a posture perpendicular to the axial direction of the ceiling beam 27. The insert plate 163 hangs down from the lower surface of the ceiling beam 27. The thickness of the insert plate 163 is larger than the thickness of the flange 63, the rigidity of the insert plate 163 is higher than the rigidity of the flange 63, and the bending resistance of the insert plate 163 is higher than the bending resistance of the flange 63. The insert plate 163 has a plurality of through holes 164 penetrating the insert plate 163.

[0045] On one hand, in the wooden post 46, the slit 147 is cut out from the upper end and the opposite side surface of the wooden post 46 into the inside of the wooden post 46, and the slit 147 opens at the upper end and the two opposite side surfaces of the wooden post 46. A plurality of insertion holes 148 penetrate from the other side surface of the wooden post 46 across the slit 147 to the opposite side surface in a direction parallel to the two opposite side surfaces. The upper end of the wooden post 46 is directed toward the lower surface of the ceiling beam 27, and the insert plate 163 is inserted into the slit 147. The through hole 164 of the insert plate 163 is coaxial with the insertion hole 148. The joining tool 165 is driven into the wooden post 46 from the side surface of the wooden post 46 and penetrates the insert plate 163. Specifically, the joining tool 165 is inserted into and fitted in the insertion hole 148 of the wooden post 46 and the through hole 164 of the insert plate 163. The joining tool 165 contributes to fixing the wooden post 46 to the insert plate 163. The joining tool 165 is made of metal, for example, steel. The joining tool 165 may be made of wood. The joining tool 165 is, for example, a drift pin, a split bolt, a dowel, a dowel screw, or a pin. The whole of the joining tool 165 may fit into the insertion hole 148 and the through hole 164, and the joining tool 165 may not protrude from the insertion hole 148.

[0046] As shown in FIGS. 1, 7, and 8, the wall 70 is provided between the wooden posts 41 and 46. Both sides of the wall 70 are joined to the wooden posts 41 and 46 respectively. The upper part of the wall 70 is applied to the flange 63, and the upper part of the wall 70 is fixed to the flange 63 by screws or the like. The lower part of the wall 70 is joined to the base 31.

[0047] The wall 70 is made of wood. The wall 70 has a wooden wall panel 71 and wooden side members 72 and 73. The wall panel 71 has a rectangular frame body formed by assembling a pair of upper and lower wooden horizontal frame members and a pair of left and right wooden vertical frame members in a rectangular frame shape, and wooden face materials attached to the front and rear surfaces of the frame body. If necessary, the wall panel 71 may have one or a plurality of wooden cross members assembled to the rectangular frame body inside the rectangular frame body. When the wall panel 71 constitutes an outer wall, the wall panel 71 may have a heat insulating material such as glass wool, rock wool, and foamed resin filled between the face materials. The side members 72 and 73 are square timbers. The side member 72 is joined to the side surface of the wall panel 71 by an adhesive or screws, etc., and the side member 72 is joined to the side surface of the wall panel 71 by an adhesive or screws, etc. On the other hand, the side member 44 is joined to the side surface of the wooden column 41 by an adhesive or screws, etc. The side member 44 and the side member 72 are overlapped in the wall thickness direction (the width direction of the beams 25 and 27), and these side members 44 and 72 are joined to each other by an adhesive or screws, etc. Thereby, one side of the wall 70 is joined to the wooden column 41. The side members 44 and 72 fit between the wooden column 41 and the wall panel 71. Similarly for the wooden column 46, the side member 49 is joined to the side surface of the wooden column 46 by an adhesive or screws, etc. The side member 49 and the side member 73 are overlapped in the wall thickness direction, and these side members 49 and 73 are joined to each other by an adhesive or screws, etc. Thereby, the other side of the wall 70 is joined to the wooden column 46. The side members 49 and 73 fit between the wooden column 46 and the wall panel 71.

[0048] As shown in FIG. 1, the wall 80 is provided between the steel column 21 and the wooden column 41. Both sides of the wall 80 are joined to the steel column 21 and the wooden column 41 respectively. The upper part of the wall 80 is applied to the flange 63, and the upper part of the wall 80 is fixed to the flange 63 by screws, etc. The lower part of the wall 80 is joined to the base 31. An opening may be formed in at least one of the walls 70, 80, and 90, and fittings may be installed in the opening.

[0049] The wall 90 is provided between the wooden column 46 and the steel column 23. Both sides of the wall 90 are joined to the wooden column 46 and the steel column 23 respectively. The upper part of the wall 90 is applied to the flange 63, and the upper part of the wall 90 is fixed to the flange 63 by screws, etc. The lower part of the wall 90 is joined to the base 31.

[0050] 2. Construction method of the building frame The construction method of the building frame 1 will be described.

[0051] (1) Erection of steel columns and construction of the foundation and footing First, build steel columns 21 and 23, arrange the steel bars of footings 11 and 13 around the lower ends of the steel columns 21 and 23, and also arrange the steel bars of the foundation 10. Build other steel columns other than the steel columns 21 and 23 shown in Fig. 1, and arrange the steel bars of the footings around the lower ends of those steel columns. Furthermore, assemble the formwork. Next, place concrete inside the formwork, and disassemble the formwork after the concrete has cured. Thus, construct the foundation 10, footings 11 and 13, and other footings (these other footings support steel columns other than the steel columns 21 and 23).

[0052] (2) Erection of floor beams Next, lift the floor beam 25 by a crane or the like and place the floor beam 25 on the foundation 10. Fix both ends of the floor beam 25 to the steel columns 21 and 23 respectively, and horizontally erect the floor beam 25 between the steel columns 21 and 23. Fix the floor beam 25 to the foundation 10. Similarly, erect other floor beams between the steel columns. Floor joists may be erected between the floor beams.

[0053] (3) Installation of plinth Next, place the plinth 31 parallel to the floor beam 25 and place the plinth 31 on the floor beam 25. Fix the plinth 31 to the floor beam 25 with fasteners.

[0054] (4) Installation of splice fittings Next, as shown in Fig. 9, fix the splice fittings 50 and 150 on the plinth 31. Specifically, lay the base plates 51 and 151 of the splice fittings 50 and 150 face down on the plinth 31, stand the insert plates 52 and the insert bar 152 of the splice fittings 50 and 150 upright against the upper surface of the plinth 31, and fix the base plates 51 and 151 to the plinth 31. Note that the timing of attaching the splice fittings 50 and 150 to the plinth 31 may be at any time as long as it is before the erection of the wooden columns 41 and 46 described later.

[0055] (5) Joining of wooden columns and ceiling beams Position the insert plate 163 perpendicular to the axial direction of the ceiling beam 27, and weld the insert plate 163 to the lower surface of the ceiling beam 27 so that the insert plate 163 hangs down from the lower surface of the ceiling beam 27. Note that the insert plate 163 may be pre-welded to the ceiling beam 27 at a factory or the like before the ceiling beam 27 is transported to the construction site.

[0056] Before installing the ceiling beam 27, insert the insert plate 163 into the slit 147 of the wooden pillar 46 at the construction site or in the factory. By inserting the joining tool 165 into the insertion hole 148 of the wooden pillar 46 and the through hole 164 of the insert plate 163, the wooden pillar 46 is joined to the ceiling beam 27 via the insert plate 163 between the wooden pillar 46 and the ceiling beam 27.

[0057] (6) Installation of the ceiling beam Next, as shown in FIG. 10, lift the ceiling beam 27 by a crane or the like and place the ceiling beam 27 between the steel columns 21 and 23. At this time, insert the insert bar 152 into the mortise hole 47 of the wooden pillar 46. Fix both ends of the ceiling beam 27 to the steel columns 21 and 23 respectively, and horizontally install the ceiling beam 27 between the steel columns 21 and 23. Similarly, install other ceiling beams between the steel columns. A ceiling joist may be installed between the ceiling beams. Note that the ceiling beam 27 may be installed before the installation of the base 31.

[0058] (7) Joining of the wooden pillars Next, insert the joining tool 155a into the insertion hole 48a of the wooden pillar 46 and the through hole 153a of the insert bar 152, and insert the joining tool 155b into the insertion hole 48b of the wooden pillar 46 and the through hole 153a of the insert bar 152. Thereby, the wooden pillar 46 is joined to the base 31 via the splice fitting 150.

[0059] (8) Installation of the angle Next, as shown in Fig. 11, web 61 of angle 60 is placed against the lower surface of ceiling beam 27, and web 62 of angle 60 is suspended from the lower surface of ceiling beam 27. Web 61 is joined to ceiling beam 27 by welding or high-strength bolts, etc. Web 62 of angle 60 corresponds to flange 63. Note that angle 60 may be joined to ceiling beam 27 before the erection of ceiling beam 27. Angle 60 may be pre-joined to ceiling beam 27 at a factory or the like before the ceiling beam 27 is carried in.

[0060] (9) Erection of wooden columns Next, wooden column 41 is erected between base 31 and ceiling beam 27.

[0061] Specifically, first, insert insert plate 52 of splicing fitting 50 into slit 42 of wooden column 41. At this time, since slit 42 and insert plate 52 are relatively movable in the in-plane direction (the in-plane direction means the direction parallel to insert plate 52), even if wooden column 41 is inclined with respect to the vertical direction, insert plate 52 of splicing fitting 50 can be inserted into slit 42 of wooden column 41. Also, since slit 42 opens not only at the lower end of wooden column 41 but also on the side surface, even if wooden column 41 is inclined with respect to the vertical direction, insert plate 52 of splicing fitting 50 can be inserted into slit 42 of wooden column 41.

[0062] Next, adjust the posture of wooden column 41 and vertically stand wooden column 41 on base 31. When standing wooden column 41 on base 31, place the upper part of wooden column 41 against flange 63. Next, by inserting joining tool 55 into insertion hole 43 of wooden column 41 and through hole 53 of insert plate 52, fix wooden column 41 to base 31 via splicing fitting 50. Next, fix the upper part of wooden column 41 to flange 63 with fasteners 65 such as screws.

[0063] (10) Installation of walls Next, a wall 70 is installed in the area surrounded by the wooden columns 41, 46, the floor beam 25, and the ceiling beam 27. Specifically, the wall panel 71 is lifted by a crane or the like, and the wall panel 71 is fitted into the area surrounded by the wooden columns 41, 46, the floor beam 25, and the ceiling beam 27. At this time, the side member 72 of the wall 70 is overlapped with the side member 44 of the wooden column 41 in the wall thickness direction (the width direction of the beams 25, 27), the side member 72 of the wall 70 is overlapped with the side member 49 of the wooden column 46 in the wall thickness direction, and the upper part of the wall 70 is abutted against the flange 63. The side member 44 of the wooden column 41 is joined to the side member 72 of the wall 70 by an adhesive or screws, etc., the side member 49 of the wooden column 46 is joined to the side member 73 of the wall 70 by an adhesive or screws, etc., the upper part of the wall 70 is joined to the flange 63 by screws, etc., and the lower part of the wall 70 is joined to the base 31.

[0064] Next, a wall 80 is installed in the area surrounded by the steel column 21, the wooden column 41, the floor beam 25, and the ceiling beam 27 (see Fig. 1). Further, a wall 80 is installed in the area surrounded by the steel column 23, the wooden column 46, the floor beam 25, and the ceiling beam 27 (see Fig. 1).

[0065] Wooden columns and walls are also installed in other openings of the ramen structure, the floor of the first floor part is laid, and the ceiling of the first floor part is installed. Also, the second floor part and the third floor part of the building body 1 are constructed by a wooden construction method such as a traditional frame construction method, a wooden panel bonding method, or a wooden framed wall construction method.

[0066] 3. Modification example of the building method of the building body In the above construction method, after joining the wooden column 46 to the ceiling beam 27 before installing the ceiling beam 27, the ceiling beam 27 is installed, and then the wooden column 46 is joined to the base 31. On the other hand, as shown in Fig. 13, the wooden column 46 may be joined to the base 31 by the joining tools 155a, 155b and the insert bar 152 before installing the ceiling beam 27. After joining the wooden column 46 to the base 31, the ceiling beam 27 is installed between the steel columns 21, 23, and then the wooden column 46 is joined to the ceiling beam 27 by the insert plate 163 and the joining tool 165.

[0067] 4. Technically advantageous effects (1) Even if the length of the wooden column 41 has an error from the interval between the ceiling beam 27 and the base 31 so that the upper end of the wooden column 41 does not stably contact the lower surface of the ceiling beam 27, the flange 63 is joined to the lower surface of the ceiling beam 27, the flange 63 hangs down from the ceiling beam 27, and the side surface of the wooden column 41 contacts the flange 63 and is joined to the flange 63. Therefore, the wooden column 41 is surely fixed to the ceiling beam 27 erected previously. Therefore, the building body 1 and its construction method are suitable for building the wooden column 41 later under the ceiling beam 27 erected previously. The joining structure and manufacturing method of the wooden column 41 and the ceiling beam 27 are also suitable for building the wooden column 41 later under the ceiling beam 27 erected previously.

[0068] (2) Since the ceiling beam 27 is erected before the wooden column 41 is built in, in order to surely arrange the wooden column 41 between the ceiling beam 27 and the base 31 after the ceiling beam 27 is erected, it is necessary to make the length of the wooden column 41 slightly shorter than the interval between the ceiling beam 27 and the base 31. Even in such a case, since the flange 63 hangs down from the ceiling beam 27 and the side surface of the wooden column 41 contacts the flange 63 and is joined to the flange 63, the wooden column 41 is fixed to the ceiling beam 27 erected previously. That is, even if the upper end of the wooden column 41 is slightly separated from the lower surface of the ceiling beam 27, the flange 63 contributes to the fixation of the wooden columns 41, 46 and the ceiling beam 27.

[0069] (3) When the angle 60 is attached to the ceiling beam 27, since the web 61 of the angle 60 is in surface contact with the lower surface of the ceiling beam 27 and is joined to the lower surface of the ceiling beam 27, the web 62 of the angle 60, that is, the posture of the flange 63 is stabilized. The stabilization of the posture of the flange 63 contributes to the stabilization of the posture of the wooden column 41. Therefore, when building the wooden column 41 later under the ceiling beam 27 erected previously, the upper part of the wooden column 41 is stably fixed to the ceiling beam 27.

[0070] (4) When the wooden column 41 is being installed, since the slit 42 and the insert plate 52 are relatively movable in the in-plane direction (the in-plane direction refers to the direction parallel to the insert plate 52), even if the wooden column 41 is inclined with respect to the vertical direction, the insert plate 52 of the joint fitting 50 can be inserted into the slit 42 of the wooden column 41. Also, since the slit 42 opens not only at the lower end but also on the side surface of the wooden column 41, even if the wooden column 41 is inclined with respect to the vertical direction, the insert plate 52 of the joint fitting 50 can be inserted into the slit 42 of the wooden column 41. Therefore, even if the length of the wooden column 41 is equal to the interval between the ceiling beam 27 and the base 31, the wooden column 41 can be easily installed between the ceiling beam 27 and the base 31.

[0071] (5) It is adopted that the upper part of the wooden column 41 is fixed to the ceiling beam 27 via the flange 63 and the lower part of the wooden column 41 is fixed to the base 31 via the joint fitting 50. Such a combined use contributes to facilitating the installation of the wooden column 41 between the previously installed ceiling beam 27 and the base 31.

[0072] (6) Since the wooden column 41 is installed after the erection of the ceiling beam 27, the workability related to the erection of the ceiling beam 27 is good and the workability related to the installation of the wooden column 41 is also good.

[0073] (7) As shown in FIG. 10, the wooden column 46 is joined to the ceiling beam 27 before the erection of the ceiling beam 27. Alternatively, as shown in FIG. 13, the wooden column 46 is installed on the base 31 before the erection of the ceiling beam 27. These contribute to improving the pull-out strength of the wooden column 46. That is, even if a large external force such as strong wind and earthquake is applied to the wooden columns 41, 46 and the walls 70, 80, 90, the wooden column 46 is difficult to come off, so that the wooden columns 41, 46 and the walls 70, 80, 90 can withstand the external force. The insert bar 152 of the joint fitting 150 is columnar, the insert bar 152 is inserted into the columnar hollow mortise hole 47, and the joining tools 155a, 155b are driven into the wooden column 46 and the insert bar 152 from different directions respectively, so that the joining strength between the wooden column 46 and the base 31 is high.

[0074] (8) The insert bar 152 of the joint fitting 150 is columnar, and the insert bar 152 is inserted into the columnar hollow mortise hole 47. Since the joining tools 155a and 155b are driven into the wooden column 46 and the insert bar 152 from different directions respectively, the joining strength between the wooden column 46 and the base 31 is high.

[0075] (9) It is possible to achieve both good workability like the erection of the wooden column 41 and high load-bearing capacity like the erection of the wooden column 46. Since the wall panel 71 is joined to the wooden column 46 with high pull-out strength and the wall panel 71 is joined to the wooden column 41 with good workability, it is possible to achieve both good workability in constructing the wall in the area surrounded by the ceiling beam 27, the horizontal member 31, and the wooden columns 41 and 46 and high durability and strength of the wall.

[0076] (10) After the ceiling beam 27 is erected, the wooden column 41 is erected, and then the wall panel 71 is erected in the area surrounded by the ceiling beam 27, the wooden column 41, and the base 31, and the wall panel 71 is joined to the ceiling beam 27, the wooden columns 41 and 46, and the base 31. Therefore, the workability related to the erection of the ceiling beam 27, the workability related to the erection of the wooden column 41, and the workability related to the erection of the wall panel 71 are good.

[0077] (11) The first-floor part of the building frame 1 is made of steel frame, and the first-floor part of the frame 1 has high earthquake resistance and a long lifespan. Therefore, the building frame 1 contributes to the achievement of goals such as so-called "building for sustainable living" and "SDGs (Sustainable Development Goals)".

[0078] (12) The wooden columns 41 and 46 and the walls 70, 80, and 90 of the frame 1 are made of wood, and the second and third floors of the frame 1 are wooden structures. The amount of carbon dioxide emissions from the production and processing of wood to its exhaust is less than that from the production and processing of steel to its exhaust. Therefore, the frame 1 contributes to the realization of a decarbonized society by promoting carbon neutrality that reduces the amount of carbon dioxide emissions to substantially zero and also contributes to the achievement of SDGs.

[0079] <Second Embodiment> In the first embodiment, the joining structure between the wooden column 41 and the base 31 is different from the joining structure between the wooden column 46 and the base 31, and the joining structure between the wooden column 41 and the ceiling beam 27 is different from the joining structure between the wooden column 46 and the ceiling beam 27. In contrast, as shown in FIG. 14, the joining structure between the wooden column 41 and the base 31 may be the same as the joining structure between the wooden column 46 and the base 31, and the joining structure between the wooden column 41 and the ceiling beam 27 may be the same as the joining structure between the wooden column 46 and the ceiling beam 27.

[0080] Since the pull-out strength of both the wooden columns 41 and 46 is high, even when a large external force such as strong wind and earthquake is applied to the wooden columns 41 and 46 and the walls 70, 80, and 90, the wooden column 46 is difficult to come off, so that the wooden columns 41 and 46 and the walls 70, 80, and 90 can withstand the external force.

[0081] In the construction method of the building body 1 of the second embodiment, as shown in FIG. 15, the wooden column 41 may be joined to the ceiling beam 27 before the ceiling beam 27 is erected, or as shown in FIG. 17, the wooden column 41 may be joined to the base 31 before the ceiling beam 27 is erected. Further, as shown in FIG. 16, after the wooden column 46 is joined to the ceiling beam 27 and the wooden column 41 is joined to the base 31 before the ceiling beam 27 is erected, the ceiling sheathing 27 may be erected.

Explanation of Reference Numerals

[0082] 1 Building body 27 Ceiling beam 31 Base (horizontal member) 41 First wooden column 42 First slit 46 Second wooden column 50 First joint fitting 52 First insert plate 55 Joining tool 63 Flange 147 Second slit 150 Second joint fitting 152 Insert bar 155a Joining tool 155b Joining tool 163 Second insert plate 165 Joining tool

Claims

1. A building frame, comprising: a steel ceiling beam installed horizontally; a wooden horizontal member disposed below the ceiling beam; a first wooden pillar and a second wooden pillar erected between the horizontal member and the ceiling beam at intervals; a wall panel provided in a region surrounded by the first wooden pillar, the second wooden pillar, the ceiling beam and the horizontal member, and joined to the ceiling beam, the horizontal member, the first wooden pillar and the second wooden pillar; a flange joined to the lower surface of the ceiling beam and hanging down from the ceiling beam; a first splicing fitting fixed on the horizontal member and having a first insert plate; a second insert plate joined to the lower surface of the ceiling beam and hanging down from the ceiling beam; a second splicing fitting fixed on the horizontal member and having an insert bar; wherein the first insert plate is erected with respect to the upper surface of the horizontal member, a first slit is notched in the axial direction of the first wooden pillar from the lower end of the first wooden pillar, the first insert plate is inserted into the first slit, and a first joining tool penetrates the first insert plate and is driven into the first wooden pillar; the side surface of the first wooden pillar abuts against the flange, and the first wooden pillar is joined to the flange; the insert bar is erected with respect to the upper surface of the horizontal member, a hozo hole is drilled in the axial direction of the second wooden pillar from the lower end of the second wooden pillar, the insert bar is inserted into the hozo hole, and a second joining tool penetrates the insert bar and is driven into the second wooden pillar; a second slit is notched in the axial direction of the second wooden pillar from the upper end of the second wooden pillar, the second insert plate is inserted into the second slit, and a third joining tool penetrates the second insert plate and is driven into the second wooden pillar. A frame characterized by the above.

2. A building frame, comprising: a steel ceiling beam installed horizontally; a wooden horizontal member disposed below the ceiling beam; a first wooden pillar and a second wooden pillar erected between the horizontal member and the ceiling beam at intervals and joined to the horizontal member; a wall panel provided in a region surrounded by the first wooden pillar, the second wooden pillar, the ceiling beam and the horizontal member, and joined to the ceiling beam, the horizontal member, the first wooden pillar and the second wooden pillar; a flange joined to the lower surface of the ceiling beam and hanging down from the ceiling beam; an insert plate joined to the lower surface of the ceiling beam and hanging down from the ceiling beam. The side surface of the first wooden pillar abuts against the flange, and the first wooden pillar is joined to the flange. A slit is cut out in the axial direction of the second wooden pillar from the upper end of the second wooden pillar, the insert plate is inserted into the slit, and a joining tool penetrates the insert plate and is driven into the second wooden pillar. A building structure characterized by the above.

3. A building structure comprising: A steel ceiling beam installed horizontally; A wooden horizontal member disposed below the ceiling beam; First and second wooden pillars erected between the horizontal member and the ceiling beam at intervals and joined to the ceiling beam and the horizontal member respectively; A wall panel provided in a region surrounded by the first wooden pillar, the second wooden pillar, the ceiling beam, and the horizontal member and joined to the ceiling beam, the horizontal member, the first wooden pillar, and the second wooden pillar; A flange joined to the lower surface of the ceiling beam and hanging down from the ceiling beam; A joint fitting fixed on the horizontal member and having an insert bar. The side surface of the first wooden pillar abuts against the flange, and the first wooden pillar is joined to the flange. The insert bar is erected with respect to the upper surface of the horizontal member, a hozo hole is drilled in the axial direction of the second wooden pillar from the lower end of the second wooden pillar, the insert bar is inserted into the hozo hole, and a joining tool penetrates the insert bar and is driven into the second wooden pillar. A building structure characterized by the above.

4. A building structure comprising: A steel ceiling beam installed horizontally; A wooden horizontal member disposed below the ceiling beam; First and second wooden pillars erected between the horizontal member and the ceiling beam at intervals and joined to the horizontal member and the ceiling beam respectively; A wall panel provided in a region surrounded by the first wooden pillar, the second wooden pillar, the ceiling beam, and the horizontal member and joined to the ceiling beam, the horizontal member, the first wooden pillar, and the second wooden pillar; A joint fitting fixed on the horizontal member and having a first insert plate; A second insert plate joined to the lower surface of the ceiling beam and hanging down from the ceiling beam. The first insert plate is erected with respect to the upper surface of the horizontal member, a first slit is cut out in the axial direction of the first wooden pillar from the lower end of the first wooden pillar, the first insert plate is inserted into the first slit, and a first joining tool penetrates the first insert plate and is driven into the first wooden pillar. The second slit is notched in the axial direction of the second wooden pillar from the upper end of the second wooden pillar, the second insert plate is inserted into the second slit, and a second joining tool penetrates the second insert plate and is driven into the second wooden pillar. A housing characterized by this.

5. A building housing, A steel ceiling beam installed horizontally, A wooden horizontal member disposed below the ceiling beam, A first wooden pillar and a second wooden pillar built between the horizontal member and the ceiling beam at intervals and joined to the ceiling beam, A wall panel provided in a region surrounded by the first wooden pillar, the second wooden pillar, the ceiling beam, and the horizontal member and joined to the ceiling beam, the horizontal member, the first wooden pillar, and the second wooden pillar, A first joint having an insert plate fixed on the horizontal member, A second joint having an insert bar fixed on the horizontal member, The insert plate is erected with respect to the upper surface of the horizontal member, a slit is notched in the axial direction of the first wooden pillar from the lower end of the first wooden pillar, the insert plate is inserted into the slit, and a first joining tool penetrates the insert plate and is driven into the first wooden pillar. The insert bar is erected with respect to the upper surface of the horizontal member, a hozo hole is drilled in the axial direction of the second wooden pillar from the lower end of the second wooden pillar, the insert bar is inserted into the hozo hole, and a second joining tool penetrates the insert bar and is driven into the second wooden pillar. A housing characterized by this.

6. The housing according to claim 1, 2, or 3, The upper part of the wall panel abuts against the flange, and the upper part of the wall panel is joined to the flange, whereby the wall panel is joined to the ceiling beam via the flange. A housing characterized by this.

Images