Frame, column-beam joint structure, construction method of frame and manufacturing method of column-beam joint structure

Abstract

To provide a technique suitable for later erection of wooden columns under a previously erected steel beam.SOLUTION: A building frame (1) comprises: a steel ceiling beam (27) that is horizontally installed; a flange (63) that is joined to an underside of the ceiling beam (27) and hangs down from the ceiling beam (27); a wooden horizontal member (31) positioned below the ceiling beam (27); and a wooden column (41) that is erected on the wooden horizontal member (31) and joined to the wooden horizontal member (31). A side surface of the wooden column (41) abuts the flange (63), and the wooden column (41) is joined to the flange (63).SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a building body, a column-beam joint structure, a method for constructing a building body, and a method for manufacturing a column-beam joint structure.

Background Art

[0002] Patent Documents 1 and 2 disclose a column-beam joint structure used for a building body. The column-beam joint structure has a built wooden column and a steel beam joined thereto.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, the technologies of Patent Documents 1 and 2 are suitable for installing a steel beam between wooden columns after the wooden columns are built. However, the technologies of Patent Documents 1 and 2 are not suitable for building a wooden column later under a previously installed steel beam. Therefore, the present invention has been made in view of the above circumstances, and an object thereof is to provide a technology suitable for building a wooden column later under a previously installed steel beam.

Means for Solving the Problems

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

[0006] According to the invention according to claim 1, a building body (1), a steel ceiling beam (27) installed horizontally, A flange (63) joined to the lower surface of the ceiling beam (27) and hanging down from the ceiling beam (27); A wooden horizontal member (31) disposed below the ceiling beam (27); A wooden column (41) built on the horizontal member (31) and joined to the horizontal member (31), comprising: The side surface of the wooden column (41) abuts against the flange (63), and the wooden column (41) is joined to the flange (63). A building structure (1) is provided, characterized in that.

[0007] According to the invention according to claim 6, A column-beam joint structure, comprising: A steel ceiling beam (27) installed horizontally; A flange (63) joined to the lower surface of the ceiling beam (27) and hanging down from the ceiling beam (27); A wooden column (41) built below the ceiling beam (27), comprising: The side surface of the wooden column (41) abuts against the flange (63), and the wooden column (41) is joined to the flange (63). A column-beam joint structure is provided, characterized in that.

[0008] According to the invention according to claim 7, A method for constructing a building structure (1), comprising: A first step of joining the flange (63) to the lower surface of the ceiling beam (27) so as to hang down the flange (63) from the horizontally installed steel ceiling beam (27); A second step of building a wooden column (41) on a wooden horizontal member (31) disposed below the ceiling beam (27), applying the side surface of the wooden column (41) against the flange (63), and joining the wooden column (41) to the flange (63); A third step of joining the wooden column (41) to the horizontal member (31) after the second step; A method for constructing a building structure (1) is provided, characterized by including.

[0009] According to the invention according to claim 12, A method for manufacturing a column-beam joint structure, comprising: a first step of joining a flange (63) to the lower surface of a steel ceiling beam (27) installed horizontally so that the flange (63) hangs down from the ceiling beam (27); a second step of erecting a wooden column (41) below the ceiling beam (27) and joining the wooden column (41) to the flange (63) by bringing a side surface of the wooden column (41) into contact with the flange (63); A method for manufacturing a column-beam joint structure is provided, characterized by including the above.

[0010] According to the invention according to claim 1, 6, 7 or 12 as described above, the fact that 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 side surface of the wooden column (41) abuts against the flange (63), and the wooden column (41) is joined to the flange (63) contributes to fixing the wooden column (41) to the previously installed ceiling beam (27). In particular, due to the length of the wooden column (41) having an error from the distance between the ceiling beam (27) and the horizontal member (31), even if the upper end of the wooden column (41) does not stably contact the lower surface of the ceiling beam (27), the flange (63) contributes to fixing the wooden column (41) to the ceiling beam (27). Therefore, the housing (1) according to claim 1, the column-beam joint structure according to claim 6, the construction method according to claim 7, and the manufacturing method according to claim 12 are suitable for building the wooden column (41) later under the previously installed ceiling beam (27).

[0011] According to the invention according to claim 2, a housing (1) according to claim 1, wherein the axial direction of a steel angle (60) is parallel to the axial direction of the ceiling beam (27), one web (61) of the two webs of the angle (60) is in surface contact with the lower surface of the ceiling beam (27) and joined to the lower surface of the ceiling beam (27), the other web (62) hangs down from the lower surface of the ceiling beam (27), and the other web (62) constitutes the flange (63). A housing (1) is provided, characterized by the above.

[0012] According to the invention according to claim 8, A method for constructing the housing (1) according to claim 7, In the first step, the axial direction of the steel angle (60) is made parallel to the axial direction of the ceiling beam (27), and one of the two webs (61, 62) of the angle (60) is brought into surface contact with the lower surface of the ceiling beam (27) and joined to the lower surface of the ceiling beam (27), and the other web (62) is suspended from the lower surface of the ceiling beam (27), and the other web (62) is configured as the flange (63). A method for constructing the housing (1) is provided, which is characterized in that.

[0013] According to the invention according to claim 2 or 8 as described above, the fact that one web (61) of the angle (60) is in surface contact with the lower surface of the ceiling beam (27) and joined to the lower surface of the ceiling beam (27) contributes to the stabilization of the posture of the other web (62), that is, the flange (63). The stabilization of the posture of the flange (63) contributes to the stabilization of the posture of the wooden column (41). When the wooden column (41) is later built under the previously installed ceiling beam (27), the upper part of the wooden column (41) is stably fixed to the ceiling beam (27). Therefore, the housing (1) according to claim 2 and the construction method according to claim 8 are suitable for building the wooden column (41) later under the previously installed ceiling beam (27).

[0014] According to the invention according to claim 3, The housing (1) according to claim 1 or 2, Comprising a splicing fitting (50) having an insert plate (52), The splicing fitting (50) is fixed on the horizontal member (31), and the insert plate (52) is erected with respect to the upper surface of the horizontal member (31), A slit (42) is cut out from the lower end of the wooden column (41) in the axial direction of the wooden column (41), The insert plate (52) is inserted into the slit (42), The joining tool (55) penetrates the insert plate (52) and is driven into the wooden post (41). A housing (1) is provided, characterized in that...

[0015] According to the invention of claim 9, A method for constructing the housing (1) according to claim 7 or 8, comprising, before the second step, fixing a fitting (50) having an insert plate (52) on the horizontal member (31) and standing the insert plate (52) against the upper surface of the horizontal member (31); when building the wooden post (41) into the horizontal member (31) in the second step, inserting the insert plate (52) into a slit (42) cut axially from the lower end of the wooden post (41); in the third step, driving a joining tool (55) into the side surface of the wooden post (41) to penetrate the insert plate (52). A method for constructing the housing (1) is provided, characterized in that...

[0016] According to the invention of claim 3 or 9 as described above, the fixing of the fitting (50) on the horizontal member (31), the standing of the insert plate (52) of the fitting (50) against the upper surface of the horizontal member (31), the notching of the slit (42) axially from the lower end of the wooden post (41), and the insertion of the insert plate (52) into the slit (42) contribute to the temporary fixing of the wooden post (41) to the horizontal member (31). The contact of the side surface of the wooden post (41) with the flange (63) contributes to the temporary fixing of the wooden post (41) to the ceiling beam (27). Here, when temporarily fixing the wooden column (41) between the previously installed ceiling beam (27) and the horizontal member (31), the wooden column (41) is inclined with respect to the vertical direction, the insert plate (52) is inserted into the slit (42), and then the posture of the wooden column (41) is made vertical so that the wooden column (41) can be brought into contact with the flange (63). That is, even if the length of the wooden column (41) has an error from the interval between the ceiling beam (27) and the horizontal member (31), the insert plate (52), the slit (42), and the flange (63) contribute to the fact that the wooden column (41) can be placed between the ceiling beam (27) and the horizontal member (31) in an upright state. The fact that the connector (55) penetrates the insert plate (52) and is driven into the wooden column (41) contributes to the fact that the wooden column (41) is permanently fixed to the horizontal member (31) after temporary fixing. The fact that the wooden column (41) is joined to the flange (63) contributes to the fact that the wooden column (41) is permanently fixed to the steel column after temporary fixing. Therefore, the housing (1) according to claim 3 and the construction method according to claim 9 are suitable for building the wooden column (41) later under the previously installed ceiling beam (27).

[0017] According to the invention according to claim 4, The housing (1) according to claim 3, wherein the slit (42) opens on the side surface of the wooden column (41) A housing (1) is provided, characterized in that.

[0018] According to the invention according to claim 10, The construction method of the housing (1) according to claim 9, wherein the slit (42) opens on the side surface of the wooden column (41) A construction method of a housing (1) is provided, characterized in that.

[0019] According to the invention according to claim 4 or 10 as described above, since the slit (42) opens on the side surface of the wooden column (41), the relative movable range between the slit (42) and the insert plate (52) is wide. Therefore, when temporarily fixing the wooden column (41) between the ceiling beam (27) and the horizontal member (31) erected previously, it is easy to insert the insert plate (52) into the slit (42) with the wooden column (41) inclined with respect to the vertical direction. Thus, even if the length of the wooden column (41) has an error from the interval between the ceiling beam (27) and the horizontal member (31), the wooden column (41) can be easily arranged between the ceiling beam (27) and the horizontal member (31) by standing it up.

[0020] According to the invention according to claim 5, The housing (1) according to claim 1 or 2, comprising a wall panel (71) arranged between the ceiling beam (27) and the horizontal member (31) beside the wooden column (41), wherein a side portion of the wall panel (71) is joined to the wooden column (41), an upper portion of the wall panel (71) abuts against the flange (63), the upper portion of the wall panel (71) is joined to the flange (63), and a lower portion of the wall panel (71) is joined to the horizontal member (31). There is provided a housing (1) characterized by this.

[0021] According to the invention according to claim 11, A method for constructing the housing (1) according to claim 7 or 8, After the third step, a step of arranging a wall panel (71) between the ceiling beam (27) and the horizontal member (31) beside the wooden column (41), joining a side portion of the wall panel (71) to the wooden column (41), abutting an upper portion of the wall panel (71) against the flange (63) and joining the upper portion of the wall panel (71) to the flange (63), and joining a lower portion of the wall panel (71) to the horizontal member (31). There is provided a method for constructing the housing (1) characterized by including this.

[0022] According to the invention according to claim 5 or 11 as described above, it is suitable for building the wooden column (41) and the wall panel (71) later under the previously erected ceiling beam (27).

Advantages of the Invention

[0023] According to the present invention, there are provided a building structure, a column-beam joint structure, a construction method, and a manufacturing method suitable for building a wooden column later under a previously erected ceiling beam.

Brief Description of the Drawings

[0024]

Figure 1

Figure 2

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Figure 10

Figure 11

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Figure 17

MODE FOR CARRYING OUT THE INVENTION

[0025] 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.

[0026] <First Embodiment> 1. Building Frame FIG. 1 is a view showing the first floor portion of the building frame 1 of a three-story building. The first floor portion of the building frame 1 has a hybrid structure combining a steel frame and a wooden structure. The second and third floor portions of the frame 1 are wooden structures.

[0027] The frame 1 includes a foundation 10, steel columns 21, 23, floor beams 25, ceiling beams 27, a base 31, wooden columns 41, 46, a splice fitting 50, a flange 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.

[0028] The foundation 10 is constructed on the ground. The foundation 10 may be either a solid foundation or a mat 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.

[0029] The steel columns 21 and 23 are made of square steel pipes. The steel columns 21 and 23 are provided in a state of being respectively erected on the footings 11 and 13. The column bases 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 column bases 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.

[0030] The floor beam 25 is made of H-shaped steel. Both ends of the floor beam 25 are respectively fixed to the steel columns 21 and 23, 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.

[0031] 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 respectively fixed to the steel columns 21 and 23, and the floor beam 25 is horizontally installed between the steel column 21 and the steel column 23.

[0032] In addition to the steel columns 21 and 23, the floor beam 25, and the ceiling beam 27 shown in FIG. 1, the building body 1 is provided with steel columns, floor beams, and ceiling beams in the first floor part. These steel columns, floor beams, and ceiling beams are framed by the steel frame construction method to construct a ramen structure. The steel columns 21 and 23, the floor beam 25, and the ceiling beam 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 beam 25 and the ceiling beam 27 are large beams.

[0033] 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 or may not be respectively fixed to the steel columns 21 and 23. In addition, even if the floor beam 25 is not provided, the base 31 may be placed on the foundation 10 and fixed to the foundation 10.

[0034] The wooden columns 41 and 46 are wooden square timbers. The wooden columns 41 and 46 are solid wood materials or laminated woods. 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, the wooden column 41, the wooden column 46, and the steel column 23 are arranged at intervals in sequence.

[0035] The wooden column 41 is joined to the base 31. With reference to FIGS. 1 and 2, the joining structure between the wooden column 41 and the base 31 will be described. FIG. 2 is an exploded perspective view of the joining structure between the wooden column 41 and the base 31. FIG. 2 is an exploded perspective view of the region 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 or the like, and the wooden column 41 is fixed to the splice fitting 50 by the joining tool 55.

[0036] The splice 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 fasteners such as screws or bolts. The insert plate 52 is erected with respect to the upper surface of the base 31. The insert plate 52 has a plurality of through holes 53 penetrating the insert plate 52.

[0037] On the other hand, in the wooden column 41, a slit 42 is cut out from the lower end of the wooden column 41 in the axial direction of the wooden column 41, and the slit 42 opens at the lower end and two opposing 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 opposing side surfaces. The fact that the slit 42 opens at the side surface of the wooden column 41 contributes to the ability to insert the insert plate 52 into the slit 42 while moving the wooden column 41 in the lateral direction.

[0038] The lower end of the wooden post 41 faces the base plate 51 on the base 31, and the insert plate 52 is inserted into the slit 42. The through hole 53 of the insert plate 52 is coaxial with the insertion hole 43. The joining tool 55 is driven into the wooden post 41 from the wooden post 41 and penetrates the insert plate 52. Specifically, the joining tool 55 is inserted into and fitted in the insertion hole 43 of the wooden post 41 and the through hole 53 of the insert plate 52. The joining tool 55 contributes to fixing the wooden post 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 hole 43 and the through hole 53, and the joining tool 55 may not protrude from the insertion hole 43.

[0039] 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.

[0040] In the same manner as the wooden post 41 is joined to the base 31, the wooden post 46 is joined to the base 31 by the splicing fitting 50 and the joining tool 55.

[0041] As shown in FIG. 1, the wooden post 41 is joined to the ceiling beam 27. With reference to FIGS. 1 and 4, the joining structure between the wooden post 41 and the ceiling beam 27 will be described. FIG. 4 is an exploded view of the joining structure between the wooden post 41 and the ceiling beam 27. FIG. 4 is an exploded perspective view of the region IV 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 post 41 is applied to the flange 63 and fixed to the flange 63.

[0042] 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 connection or the like, one web 62 of the angle 60 vertically hangs down from the lower surface of the ceiling beam 27, and the other web 62 corresponds to the flange 63.

[0043] The side surface of the wooden post 41 is abutted against the flange 63, and the wooden post 41 is fixed to the flange 63 by a fastener 65 such as a screw. The upper end of the wooden post 41 may be spaced from the lower surface of the ceiling beam 27 or may be in contact with the lower surface thereof.

[0044] In the same manner as the wooden post 41 is joined to the ceiling beam 27, the wooden post 46 is joined to the ceiling beam 27 by the angle 60 and the fastener 65.

[0045] As shown in FIGS. 1, 5, and 6, the wall 70 is provided between the wooden post 41 and the wooden post 46. Both sides of the wall 70 are joined to the wooden posts 41, 46 respectively. The upper part of the wall 70 is abutted against 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.

[0046] The wall 70 is made of wood. The wall 70 has a wooden wall panel 71 and wooden side members 72, 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 are accommodated 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 are accommodated between the wooden column 46 and the wall panel 71.

[0047] 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 foundation 31. An opening may be formed in at least one of the walls 70, 80, and 90, and a fitting may be installed in the opening.

[0048] 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 foundation 31.

[0049] 2. Construction method of the building frame The construction method of the building frame 1 will be described.

[0050] (1) Erection of steel columns and construction of the foundation and footing First, build the steel columns 21 and 23, arrange the steel bars of the 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 the 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. Further, assemble the formwork. Next, place concrete inside the formwork, and disassemble the formwork after curing the concrete. Thus, construct the foundation 10, the footings 11 and 13, and other footings (these other footings support the steel columns other than the steel columns 21 and 23).

[0051] (2) Erection of the floor beam 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.

[0052] (3) Installation of the base Next, place the base 31 parallel to the floor beam 25 and place the base 31 on the floor beam 25. Fix the base 31 to the floor beam 25 with fasteners.

[0053] (4) Installation of the splice fitting Next, fix the splice fitting 50 on the base 31. Specifically, lay the base plate 51 of the splice fitting 50 face down on the base 31, stand the insert plate 52 of the splice fitting 50 upright against the upper surface of the base 31, and fix the base plate 51 to the base 31. Note that the timing of attaching the splice fitting 50 to the base 31 may be anytime before the erection of the wooden columns 41 and 46 described later.

[0054] (5) Erection of the ceiling beam Next, as shown in FIG. 7, lift the ceiling beam 27 by a crane or the like and place the ceiling beam 27 between the steel columns 21 and 23. 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. Ceiling joists may be installed between the ceiling beams. Note that the ceiling beam 27 may be installed before the installation of the base 31.

[0055] (6) Installation of Angle Next, as shown in FIG. 8, place the web 61 of the angle 60 against the lower surface of the ceiling beam 27, and let the web 62 of the angle 60 hang down from the lower surface of the ceiling beam 27. Join the web 61 to the ceiling beam 27 by welding or high-strength bolts or the like. The web 62 of the angle 60 corresponds to the flange 63. Note that the angle 60 may be joined to the ceiling beam 27 before the installation of the ceiling beam 27. The angle 60 may be pre-joined to the ceiling beam 27 at a factory or the like before the ceiling beam 27 is carried in.

[0056] (7) Erection of Wooden Columns Next, erect the wooden column 41 between the floor beam 31 and the ceiling beam 27.

[0057] Specifically, first, insert the insert plate 52 of the splicing fitting 50 into the slit 42 of the wooden column 41. At this time, since the slit 42 and the insert plate 52 are relatively movable in the in-plane direction (the in-plane direction means 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 splicing 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 splicing fitting 50 can be inserted into the slit 42 of the wooden column 41.

[0058] Next, adjust the posture of the wooden column 41 and vertically stand the wooden column 41 on the base 31. When standing the wooden column 41 on the base 31, place the upper part of the wooden column 41 against the flange 63. Next, by inserting the joining tool 55 into the insertion hole 43 of the wooden pillar 41 and the through hole 53 of the insert plate 52, the wooden pillar 41 is joined to the base 31 via the splice fitting 50. Next, the upper part of the wooden pillar 41 is joined to the flange 63 by a fastener 65 such as a screw.

[0059] Similar to the erection of the wooden pillar 41, the wooden pillar 46 is erected.

[0060] (8) Installation of the wall Next, a wall 70 is installed in the area surrounded by the wooden pillars 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 fitted into the area surrounded by the wooden pillars 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 pillar 41 in the wall thickness direction (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 pillar 46 in the wall thickness direction, and the upper part of the wall 70 is applied to the flange 63. The side member 44 of the wooden pillar 41 is joined to the side member 72 of the wall 70 by an adhesive or a screw or the like, the side member 49 of the wooden pillar 46 is joined to the side member 73 of the wall 70 by an adhesive or a screw or the like, the upper part of the wall 70 is joined to the flange 63 by a screw or the like, and the lower part of the wall 70 is joined to the base 31.

[0061] Next, a wall 80 is installed in the area surrounded by the steel column 21, the wooden pillar 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 pillar 46, the floor beam 25, and the ceiling beam 27 (see FIG. 1).

[0062] Wooden pillars 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 covered. Also, the second - floor part and the third - floor part of the building body 1 are constructed by a wooden construction method such as the traditional frame construction method, the wooden panel adhesion method, or the wooden frame - assembled wall method.

[0063] 3. Technically advantageous effects (1) Since the lengths of the wooden columns 41 and 46 have errors from the distance between the ceiling beam 27 and the base 31, even if the upper ends of the wooden columns 41 and 46 do 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 surfaces of the wooden columns 41 and 46 contact the flange 63 and are joined to the flange 63, the wooden columns 41 and 46 are joined to the previously erected ceiling beam 27. Therefore, the building body 1 and its construction method are suitable for building the wooden columns 41 and 46 later under the previously erected ceiling beam 27. 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 previously erected ceiling beam 27. The joining structure and manufacturing method of the wooden column 46 and the ceiling beam 27 are also suitable for building the wooden column 46 later under the previously erected ceiling beam 27.

[0064] (2) Since the ceiling beam 27 is erected before the wooden columns 41 and 46 are built in, in order to ensure that the wooden columns 41 and 46 are arranged between the ceiling beam 27 and the base 31 after the erection of the ceiling beam 27, it is necessary to make the lengths of the wooden columns 41 and 46 slightly shorter than the distance 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 surfaces of the wooden columns 41 and 46 contact the flange 63 and are joined to the flange 63, the wooden columns 41 and 46 are joined to the previously erected ceiling beam 27. That is, even if the upper ends of the wooden columns 41 and 46 are slightly separated from the lower surface of the ceiling beam 27, the flange 63 contributes to the fixation of the wooden columns 41 and 46 and the ceiling beam 27.

[0065] (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 postures of the wooden columns 41 and 46. Therefore, when building the wooden columns 41 and 46 later under the previously erected ceiling beam 27, the upper parts of the wooden columns 41 and 46 are stably joined to the ceiling beam 27.

[0066] (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 distance 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.

[0067] (5) It is adopted that the upper part of the wooden column 41 is joined to the ceiling beam 27 via the flange 63 and the lower part of the wooden column 41 is joined 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.

[0068] (6) Since the wooden columns 41 and 46 are installed after the erection of the ceiling beam 27, the constructability related to the erection of the ceiling beam 27 is good and the constructability related to the installation of the wooden columns 41 and 46 is good.

[0069] (7) After the ceiling beam 27 is erected, the wooden columns 41 and 46 are installed, and then the wall panel 71 is installed in the area surrounded by the ceiling beam 27, the wooden columns 41 and 46, 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 constructability related to the erection of the ceiling beam 27, the constructability related to the installation of the wooden columns 41 and 46, and the constructability related to the installation of the wall panel 71 are good.

[0070] (8) The first floor part of the building's frame 1 is made of steel frame, and the seismic resistance of the first floor part of the frame 1 is high and the lifespan is long. Therefore, the building's frame 1 contributes to the achievement of goals such as so-called "building for sustainable living" and "SDGs (Sustainable Development Goals)".

[0071] (9) The wooden columns 41 and 46 and the walls 70, 80, and 90 of the housing body 1 are made of wood, and the second and third floor portions of the housing body 1 are wooden structures. The amount of carbon dioxide emissions from the production and processing of wood to exhaust is less than the amount of carbon dioxide emissions from the production and processing of steel to exhaust. Therefore, the housing body 1 contributes to the realization of a decarbonized society through the promotion of carbon neutrality that reduces the amount of carbon dioxide emissions to substantially zero, and also contributes to the achievement of Sustainable Development Goals (SDGs).

[0072] <Second Embodiment> 1. Housing Body In the first embodiment, the joining structure between the wooden column 46 and the base 31 is the same as the joining structure between the wooden column 41 and the base 31, and the joining structure between the wooden column 46 and the ceiling beam 27 is the same as the joining structure between the wooden column 41 and the ceiling beam 27. In contrast, in the second embodiment, the joining structure between the wooden column 46 and the base 31 is different from the joining structure between the wooden column 41 and the base 31, and the joining structure between the wooden column 46 and the ceiling beam 27 is different from the joining structure between the wooden column 41 and the ceiling beam 27.

[0073] Referring to FIGS. 10 and 11, the joining structure between the wooden column 46 and the base 31 will be described. FIG. 10 is a view showing the first floor portion of the housing body 1 in the second embodiment. FIG. 11 is an exploded perspective view of the joining structure between the wooden column 46 and the base 31. FIG. 11 is an exploded perspective view of the region XI shown in FIG. 10.

[0074] The splice fitting 150 is fixed on the base 31 by bolts or screws, etc., and the wooden column 46 is fixed to the splice fitting 150 by the joining tools 155a and 155b.

[0075] The joint 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 joint fitting 50 in the first embodiment, and the rigidity of the base plate 151 is higher than the rigidity of the base plate 51. The insert bar 152 is a spindle provided in a circular rod shape. The insert bar 152 may be provided in a tubular shape having a hollow, or may be in 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 joint fitting 50 in the first embodiment, 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 first through holes 153a and one second through hole 153b. The first 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 second 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 second through holes 153b may be formed in the insert bar 152. The penetrating direction of the first through holes 153a is perpendicular to the penetrating direction of the second through holes 153b. The first through holes 153a and the second through holes 153b are arranged alternately in the axial direction of the insert bar 152.

[0076] The base plate 151 is laid on the base 31 and fixed on the base 31 by a fastener such as a screw or a bolt. The insert bar 152 is erected with respect to the upper surface of the base 31.

[0077] On one hand, in the wooden post 46, a mortise hole 47 is drilled axially from the lower end of the wooden post 46 into the inside of the wooden post 46, and the mortise hole 47 opens at the lower end of the wooden post 46. A plurality of first insertion holes 48a penetrate from the side surface of the wooden post 46 across the mortise hole 47 to the opposite side surface, and the first insertion holes 48a are perpendicular to the axial direction of the wooden post 46. One second insertion hole 48b penetrates from the other side surface of the wooden post 46 across the mortise hole 47 to the opposite side surface, and the second insertion hole 48b is perpendicular to the axial direction of the wooden post 46. A plurality of second insertion holes 48b may be formed in the wooden post 46. The penetration direction of the first insertion holes 48a is perpendicular to the penetration direction of the second insertion holes 48b. The first insertion holes 48a and the second insertion holes 48b are alternately arranged in the axial direction of the wooden post 46.

[0078] The lower end of the wooden post 46 is directed towards the base plate 151 on the base 31, and the insert bar 152 is inserted into the mortise hole 47. The first through hole 153a of the insert bar 152 is coaxial with the first insertion hole 48a, and the second through hole 153b of the insert bar 152 is coaxial with the second 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 first joining tool 155a is inserted and fitted into the first insertion hole 48a of the wooden post 46 and the first through hole 153a of the insert bar 152, and the second joining tool 155b is inserted and fitted into the second insertion hole 48b of the wooden post 46 and the second 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 first joining tool 155a fits into the first insertion hole 48a and the first through hole 153a, and the first joining tool 155a may not protrude from the first insertion hole 48a. The whole of the second joining tool 155b fits into the second insertion hole 48b and the second through hole 153b, and the second joining tool 155b may not protrude from the second insertion hole 48b.

[0079] Referring to FIGS. 10 and 12, the joining structure between the wooden pillar 46 and the ceiling beam 27 will be described. FIG. 12 is an exploded perspective view of the joining structure between the wooden pillar 46 and the ceiling beam 27. FIG. 12 is an exploded perspective view of the region XII shown in FIG. 10.

[0080] An insert plate 163 made of a steel plate is in a posture perpendicular to the axial direction of the ceiling beam 27 and is fixed to the lower surface of the ceiling beam 27 by welding or the like. 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 in the first embodiment, 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 through the insert plate 163.

[0081] On the other hand, in the wooden pillar 46, slits 147 are cut out from the upper end and the opposing side surfaces of the wooden pillar 46 into the inside of the wooden pillar 46, and the slits 147 are open at the upper end and the two opposing side surfaces of the wooden pillar 46. A plurality of insertion holes 148 penetrate from the other side surface of the wooden pillar 46 across the slits 147 to the opposite side surface in a direction parallel to the two opposing side surfaces. The upper end of the wooden pillar 46 is directed toward the lower surface of the ceiling beam 27, and the insert plate 163 is inserted into the slits 147. The through holes 164 of the insert plate 163 are coaxial with the insertion holes 148. A joining tool 165 is driven into the wooden pillar 46 from the side surface of the wooden pillar 46 and penetrates through the insert plate 163. Specifically, the joining tool 165 is inserted into and fitted into the insertion holes 148 of the wooden pillar 46 and the through holes 164 of the insert plate 163. The joining tool 165 contributes to fixing the wooden pillar 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 within the insertion holes 148 and the through holes 164, and the joining tool 165 may not protrude from the insertion holes 148.

[0082] Except for what has been described above, the housing 1 of the second embodiment is the same as the housing 1 of the first embodiment.

[0083] 2. Method for constructing the housing A method for constructing the housing 1 will be described.

[0084] (1) Perform the steps (1), (2), and (3) in the first embodiment.

[0085] (2) Installation of the joint fitting Next, as shown in FIG. 13, in the same manner as the step (4) in the first embodiment, fix the joint fittings 50 and 150 on the base 31. For the joint fitting 150, place the base plate 151 face down on the base 31, stand the insert bar 152 upright against the upper surface of the base 31, and fix the base plate 151 to the base 31.

[0086] (3) Joining of the wooden column and the ceiling beam Make 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 in a factory or the like before the ceiling beam 27 is carried into the construction site.

[0087] Before installing the ceiling beam 27, insert the insert plate 163 into the slit 147 of the wooden column 46 at the construction site or in the factory. By inserting the joining tool 165 into the insertion hole 148 of the wooden column 46 and the through hole 164 of the insert plate 163, the wooden column 46 is joined to the ceiling beam 27 via the insert plate 163 between the wooden column 46 and the ceiling beam 27.

[0088] (4) Installation of the ceiling beam Next, as shown in FIG. 14, lift the ceiling beam 27 with the wooden column 46 joined by a crane or the like. Place the lifted 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 column 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 column 21 and the steel column 23.

[0089] (5) Joining of wooden columns Next, insert the joining tool 155a into the insertion hole 48a of the wooden column 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 column 46 and the through hole 153a of the insert bar 152. Thereby, join the wooden column 46 to the base 31 via the splice fitting 150.

[0090] (6) Installation of angle As shown in FIG. 15, perform the step (6) in the first embodiment.

[0091] (7) Erection of wooden columns Next, as shown in FIG. 16, erect the wooden column 41 in the same manner as the step (7) in the first embodiment.

[0092] (8) Installation of walls Next, install the walls 70, 80, 90 in the same manner as the step (8) in the first embodiment (see FIG. 10).

[0093] 3. Modification example of the building method of the building body In the above building method, after joining the wooden column 46 to the ceiling beam 27 before installing the ceiling beam 27, install the ceiling beam 27, and then join the wooden column 46 to the base 31. On the other hand, as shown in FIG. 17, 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, install the ceiling beam 27 between the steel columns 21 and 23, and then join the wooden column 46 to the ceiling beam 27 by the insert plate 163 and the joining tool 165.

[0094] 4. Technically advantageous effects (1) Since the wooden column 41 is erected after the ceiling beam 27 is installed, the workability of installing the ceiling beam 27 is good, and the workability of erecting the wooden column 41 is also good. In addition, since the upper part of the wooden column 41 is joined to the ceiling beam 27 via the flange 63 and the lower part of the wooden column 41 is joined to the base 31 via the splicing fitting 50, the workability of erecting the wooden column 41 is good, and even if the length of the wooden column 41 has an error from the interval between the ceiling beam 27 and the base 31, that error does not become a problem.

[0095] (2) As shown in FIG. 14, the wooden column 46 is joined to the ceiling beam 27 before the ceiling beam 27 is installed. Alternatively, as shown in FIG. 17, the wooden column 46 is erected on the base 31 before the ceiling beam 27 is installed. These contribute to the improvement of 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, since the wooden column 46 is not easily detached, the wooden columns 41, 46 and the walls 70, 80, 90 can withstand the external force.

[0096] (3) The insert bar 152 of the splicing 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 the joining strength between the wooden column 46 and the base 31 is high.

[0097] (4) It is possible to achieve both good workability such as the erection of the wooden column 41 and high load-bearing capacity such as 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 of constructing the wall in the area surrounded by the ceiling beam 27, the horizontal member 31 and the wooden columns 41, 46 and high durability and strength of the wall.

Explanation of Reference Numerals

[0098] 1 Frame 27 Ceiling beam 31 Base (horizontal member) 41 Wooden column 42 Slit 46 Wooden column 50 Joint fitting 52 Insert plate 60 Angle 61 Web 62 Web 63 Flange 71 Wall panel

Claims

1. A building frame comprising: a steel ceiling beam installed horizontally; a flange joined to the lower surface of the ceiling beam and hanging down from the ceiling beam; a wooden horizontal member disposed below the ceiling beam; wooden columns built on the horizontal member and joined to the horizontal member; and wherein the side surface of the wooden column abuts against the flange and the wooden column is joined to the flange. A frame characterized by the above.

2. The frame according to Claim 1, wherein the axial direction of a steel angle is parallel to the axial direction of the ceiling beam, one of the two webs of the angle is in surface contact with the lower surface of the ceiling beam and joined to the lower surface of the ceiling beam, the other web hangs down from the lower surface of the ceiling beam, and the other web constitutes the flange. A frame characterized by the above.

3. The frame according to Claim 1 or 2, further comprising a splicing fitting having an insert plate, wherein the splicing fitting is fixed on the horizontal member, the insert plate is erected with respect to the upper surface of the horizontal member, a slit is cut out in the axial direction of the wooden column from the lower end of the wooden column, the insert plate is inserted into the slit, and a joining tool penetrates the insert plate and is driven into the wooden column. A frame characterized by the above.

4. The frame according to Claim 3, wherein the slit opens on the side surface of the wooden column. A frame characterized by the above.

5. The frame according to Claim 1 or 2, further comprising a wall panel disposed between the ceiling beam and the horizontal member beside the wooden column, wherein the side portion of the wall panel is joined to the wooden column, the upper portion of the wall panel abuts against the flange and is joined to the flange, and the lower portion of the wall panel is joined to the horizontal member. A frame characterized by the above.

6. A column-beam joint structure comprising: a steel ceiling beam installed horizontally; a flange joined to the lower surface of the ceiling beam and hanging down from the ceiling beam; and wooden columns built below the ceiling beam, wherein the side surface of the wooden column abuts against the flange and the wooden column is joined to the flange. A column-beam joint structure characterized by the above.

7. A method for constructing a building frame, comprising: a first step of joining the flange to the lower surface of a steel ceiling beam installed horizontally so as to hang down the flange; A second step of building a wooden column on a wooden horizontal member disposed below the ceiling beam, and bringing a side surface of the wooden column into contact with the flange to join the wooden column to the flange; A third step of joining the wooden column to the horizontal member after the second step; A method for constructing a building body, comprising the steps.

8. The method for constructing a building body according to claim 7, In the first step, the axial direction of a steel angle is made parallel to the axial direction of the ceiling beam, one web of the two webs of the angle is brought into surface contact with the lower surface of the ceiling beam and joined to the lower surface of the ceiling beam, the other web is suspended from the lower surface of the ceiling beam, and the other web is configured as the flange. A method for constructing a building body, characterized by the above.

9. The method for constructing a building body according to claim 7 or 8, Before the second step, including a step of fixing a fitting having an insert plate on the horizontal member and standing the insert plate upright with respect to the upper surface of the horizontal member, When building the wooden column into the horizontal member in the second step, inserting the insert plate into a slit cut in the axial direction of the wooden column from the lower end of the wooden column, In the third step, driving a joining tool from the side surface of the wooden column to penetrate the insert plate. A method for constructing a building body, characterized by the above.

10. The method for constructing a building body according to claim 9, The slit opens on the side surface of the wooden column. A method for constructing a building body, characterized by the above.

11. The method for constructing a building body according to claim 7 or 8, After the third step, arranging a wall panel between the ceiling beam and the horizontal member beside the wooden column, joining a side portion of the wall panel to the wooden column, bringing an upper portion of the wall panel into contact with the flange to join the upper portion of the wall panel to the flange, and joining a lower portion of the wall panel to the horizontal member. A method for constructing a building body, comprising the steps.

12. A method for manufacturing a column-beam joint structure, A first step of joining the flange to the lower surface of the ceiling beam so that the flange hangs down from a steel ceiling beam installed horizontally; A second step of building a wooden column below the ceiling beam, bringing a side surface of the wooden column into contact with the flange, and joining the wooden column to the flange. A method for manufacturing a column-beam joint structure, comprising the steps.

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