JP7419588B1 - Joint structure - Google Patents

Abstract

An object of the present invention is to improve the fit between building materials and steel frames. [Solution] Steel flanges 32 and 33 are welded to the side surfaces of a steel column main body 31 and protrude diagonally from the side surfaces of the steel column main body 31, and a wooden joint member 40 is sandwiched between the flanges 32 and 33. At the same time, it is joined to the flanges 32 and 33 by tapping screws 62 and 63, and the joint member 40 overhangs from between the flanges 32 and 33, and the overhanging portion and the side member 17 overlap and are joined to each other, and the side member 17 is joined to the side surface of the wall panel main body 11. [Selection diagram] Figure 2

Description

The present invention relates to a joining structure.

Patent Document 1 discloses a building including a steel frame structure and wooden walls. The wooden wall is placed in an area surrounded by the frame. The wooden wall is connected to the steel beams above and below through cement-based hardened material. The wooden wall is spaced from the steel columns to its left and right.

JP2019-65685A

In the technique described in Patent Document 1, it is difficult to fit between the wooden wall and the steel column. Additionally, heat flows through the gap between the wooden walls and the steel columns, so the insulation of the area enclosed by the frame is poor.
Therefore, the present invention has been made in view of the above circumstances, and an object of the present invention is to improve the fit between building materials such as wooden walls and steel frames such as steel columns.

The following reference numbers in parentheses are referred to in FIGS. 1-15.

According to the invention according to claim 1, it is a joint structure of a steel frame (30, 130 , 230) and a building material (10, 110R, 210) ,
Equipped with wooden joint members (40, 140R, 240) ,
The steel frame (30, 130, 23 0) includes a steel frame body (31, 131, 23 1) and a fitting (32, 132R, 23 2) welded to the steel frame body (31, 131, 23 1). , has
The steel frame body is a steel column body (31, 131, 231),
The fitting is a steel flange (32, 132R, 232) that is welded to the side surface of the steel column main body (31, 131, 231) and protrudes from the side surface of the steel column main body (31, 131). ,
The building material (10, 110R, 210) includes a building material body (11, 111R, 211, 212) and a wooden side material (17, 117R) joined to the side surface of the building material body (11, 111R, 211, 212). , 217), and
The side material (17, 117R, 217) and the joint member (40, 140R, 240) are overlapped back and forth and joined to each other,
A joint structure is provided in which the joint member (40, 140R, 240 ) is joined to the joint fitting (32, 132R, 232 ) by a screw (62, 162R, 262) .

According to the invention according to claim 1 as described above, even if the building materials (10, 110R, 210 ) cannot be directly welded to the steel frame body (31, 131, 231) , the joint fittings (32, 132R, 23 2) is welded to the steel frame body (31, 131, 23 1) , and the joint member (40, 140R, 24 0) joined to the building material (10, 110R, 21 0) is welded to the screw (62, 162R, 24 0) . 26 2) , the building material (10, 110R, 210) can be joined to the steel frame body (31, 131, 23 1) . Since the joint member (40,140R,240,342) fits into the joint between the steel frame body (31,131,231 ) and the building material (10,110R, 210) , the building material (10,110R, 210) and the steel frame body (31, 131, 23 1) , and the building material (10, 110R, 21 0) and the steel frame body (31, 131, 23 1) are firmly joined.
Since the joint member (40, 140R, 24 0) fits in the joint between the steel frame body (31, 131, 23 1) and the building material (10, 110R, 21 0) , heat flow at the joint can be suppressed. .

According to the invention according to claim 1 as described above, even if the building material body (11, 111R , 211 , 212) cannot be directly welded to the steel column body (31, 131 , 231 ), the steel The flange (32, 132R , 232 ) is welded to the side surface of the steel column body (31, 131) and protrudes from the side surface, and the joint member (40, 140R , 240 ) is attached to the flange (62, 162R, 262) by the screw (62, 162R , 262 ). 32, 132R, 232), and the joint member (40, 140R , 240 ) and the wooden side material (17, 117R , 217 ) overlap and are joined to each other, so the side material (17, 117R) , 217 ) are joined to the side surfaces of the building material body (11, 111R , 211 , 212), so the building material body (11, 111R, 211 , 212) cannot be joined to the steel column body (31, 131, 231 ). I can do it. Since the joint members (40, 140R) and side members (17, 117R , 217 ) fit into the joint between the building material body (11, 111R , 211 , 212) and the steel column body (31, 131 , 231 ), the building material The fit between the main body (11,111R) and the steel column main body ( 31,131,231) is good, and the building material main body (11,111R, 211,212 ) and the steel column main body (31,131) are firmly connected. Ru.

According to the invention according to claim 2 , the joining structure according to claim 1 ,
A joint structure is provided in which the flange (32) extends from a side surface of the steel column main body (31) obliquely with respect to the front and rear surfaces of the steel column main body (31).

According to the invention according to claim 2 as described above, outdoor snow is difficult to stay at the corner formed by the joint between the steel column main body (31) and the building material main body (11). Corners allow the wind that blows into them to escape.

According to the invention according to claim 3 , the joining structure according to claim 1 ,
The steel frame (30) is welded to the side surface of the steel column main body (31), and a second flange made of steel protrudes from the side surface of the steel column main body (31) in parallel to the flange (32). It further has (33),
The joint member (40) is sandwiched between the flange (32) and the second flange (33), the joint member (40) is joined to the second flange (33) by a second screw (63),
The joint member (40) projects from between the flange (32) and the second flange (33) toward the side surface of the building material main body (11), and the projecting portion is joined to the side member (17). Provided is a joining structure characterized in that:

According to the invention according to claim 3 , the joint member (40) is sandwiched between the flange (32) and the second flange (33), and the joint member (40) is secured by the second screw (63). Since it is joined to the second flange (33), the joint member (40) is firmly connected to the steel column main body (31), and the building material main body (11) is firmly connected to the steel column main body (31). Ru.

According to the invention according to claim 4 , the joining structure according to claim 3 ,
The steel frame (30) is welded to the side surface of the steel column main body (31), the flange (32) and the second flange (33) between the flange (32) and the second flange (33), A joining structure is provided, further comprising a stiffener (34) perpendicular to the flange (32) and the second flange (33).

According to the invention according to claim 4 as described above, the joint member (40) can be stably joined to the flange (32) and the second flange (33).

According to the invention according to claim 5 , the joining structure according to claim 1 or 2 ,
A joining structure is provided, further comprising a cover (50) that covers the flange (32) and the side member (17) and hides the head of the screw (62).

According to the invention according to claim 5 as described above, the joint between the steel column main body (31) and the building material main body (11) is protected by the cover (50).

According to the invention according to claim 6 , the joining structure according to claim 5 ,
A joint structure is provided in which the cover (50) has a recess (51) into which the head of the screw (62) is accommodated.

According to the invention according to claim 6 as described above, even if the head of the screw (62) protrudes, the cover (50) stably covers the flange (32) and the side member (17).

According to the invention according to claim 7 , the joining structure according to claim 1 ,
The joint member (140R) is sandwiched between the side member (117R) and the flange (132R), and the side member (117R) is connected to the joint member (140R) by the third screw (164R).
R) is provided.

According to the invention according to claim 7 as described above, the joint member (140R) and the side member (117R)
) fits in the joint between the building material body (111R) and the steel column body (131), so it fits well between the building material body (111R) and the steel column body (131), and the building material body (11
1R) is firmly connected to the steel column main body (131).

According to the invention according to claim 8 , the joining structure according to claim 1 or 7,
The building material is a wall panel (10, 110), and the building material main body is a wooden wall panel main body (11, 111R).
A joining structure is provided.

According to the invention according to claim 8 as described above, the wall panel (10, 110R) and the steel frame body (
It fits well between the wall panel (10, 110R) and the steel frame body (31, 131).
131) are firmly joined.

According to the invention according to claim 9 , the joining structure according to claim 1 or 7 ,
The joining structure according to claim 1 or 7,
The building material is a wooden frame, and the building material body is a wooden frame body.
A joining structure is provided.

According to the invention according to claim 10, the joining structure according to claim 1 or 7,
The building material is a door (210),
The building material body (211, 212) includes a steel door frame (211) and a door body (212) attached to the door frame (211) so that the door frame (211) can be opened and closed. ,
The side member (217) is joined to the side surface of the door frame (211).
A joining structure is provided.

According to the invention according to claim 11, the joining structure according to claim 10,
The steel frame (230) is welded to the side surface of the steel column main body (231), and a second flange made of steel protrudes from the side surface of the steel column main body (231) in parallel to the flange (232). It further has (233),
The joint member (240) is sandwiched between the flange (232) and the second flange (233), and the joint member (240) is joined to the second flange (233) by a second screw (263).
The joint member (240) projects from between the flange (232) and the second flange (233) toward the side surface of the door frame (211), and the projecting portion is joined to the side member (217). has been
A joining structure is provided.

According to the present invention, not only is the fit between the steel frame body and the building material good, but also the building material and the steel frame body are firmly joined. Heat flow at the joint between the steel frame body and building materials can be suppressed.

FIG. 1 is a horizontal sectional view of the joining structure of the first embodiment. FIG. 2 is an exploded view of the joining structure of the first embodiment. FIG. 3 is a two-sided view of the steel column. FIG. 4 is a two-sided view of the steel column. FIG. 5 is a horizontal cross-sectional view of the joint structure of the second embodiment. FIG. 6 is an exploded view of the joint structure of the second embodiment. FIG. 7 is a front view of the joint structure of the second embodiment. FIG. 8 is a horizontal cross-sectional view of the joint structure of the third embodiment. FIG. 9 is an exploded view of the joint structure of the third embodiment. FIG. 10 is a plan view showing the skeleton of the floor structure of the fourth embodiment. FIG. 11 is a sectional view taken along the line XI-XI shown in FIG. FIG. 12 is a sectional view taken along line XII-XII shown in FIG. 10. FIG. 13 is a vertical sectional view of the floor structure of the fourth embodiment. FIG. 14 is a vertical sectional view of the floor structure of the fourth embodiment. FIG. 15 is an exploded view of the heat insulation structure of the floor structure of the fourth embodiment.

Embodiments will be described below with reference to the drawings. Features and technical effects of the embodiments can be understood from the following detailed description and drawings. However, the scope of the present invention is not limited to the embodiments disclosed below. The scope of the invention is not limited to the illustrations of the drawings, as the drawings are provided for illustration only.

In the following description, when an ordinal number such as "first" or "second" is attached to a common name, the ordinal number is used only for the purpose of identifying the object to which it is attached. Ordinal numbers do not limit the objects to which they are attached, nor do ordinal numbers specify the order, rank, order, rank, priority, subordination, etc. of the objects to which they are attached.

<First embodiment>
(1) Overview of joint structure FIG. 1 is a horizontal sectional view of joint structure 1. FIG. 2 is an exploded view of the joining structure 1. 3 and 4 are two side views of the steel column 30 of the joint structure 1. 3(a) and 4(a) are plan views of the steel column 30, FIG. 3(b) is a drawing of the steel column 30 seen diagonally from behind, and FIG. 4(b) is a plan view of the steel column 30. This is a drawing seen diagonally from the front right.

The joint structure 1 is a dissimilar material joint structure in which a wooden wall panel 10 and a steel column 30 are joined to each other. The joint structure 1 is a component of the outer periphery of the building. The joint structure 1 is applied, for example, to the outer periphery of the first floor or higher floors of a building such as a detached house or an apartment complex. In the following description, the front surface of each member refers to the surface facing the outside of the building, and the rear surface of each member refers to the surface facing the inside of the building.

The joint structure 1 includes a wall panel 10, a steel column 30, a plurality of joint members 40, and a cover 50.

(2) Wall Panel The wall panel 10 is a wooden building material. The wall panel 10 has a wall panel main body 11 and a side member 17, the wall panel main body 11 has a rectangular frame 12, face members 13 and 14, and a heat insulating material 15, and the side member 17 has square members 18 and 19.

The rectangular frame 12 has a pair of upper and lower wooden horizontal stile members and a pair of left and right wooden vertical stile members, and the rectangular frame 12 is assembled by assembling these horizontal stile members and vertical stile members into a rectangular frame shape. ing. Wooden panels 13 and 14 are attached to the front and rear surfaces of the rectangular frame 12, respectively, with the first panel 13 facing the outside of the building and the second panel 14 facing the inside of the building. The face materials 13 and 14 cover the area surrounded by the rectangular frame 12, and the area is hollow. A heat insulating material 15 such as glass wool, rock wool, foamed resin, etc. is loaded into the hollow space. An aluminum-zinc alloy plated steel plate 16 is attached to the front surface of the wall panel main body 11, that is, the surface of the first surface material 13. Note that, if necessary, the wall panel main body 11 may have one or more wooden auxiliary beams assembled to the rectangular frame 12 inside the rectangular frame 12.

The side members 17 are made of wood. The side member 17 is joined to the side surface of the wall panel main body 11, that is, the side surface of the vertical stile of the rectangular frame body 12. The side members 17 extend vertically along the side surface of the wall panel main body 11.

The first square member 18 of the side member 17 is a wooden bar having a rectangular horizontal cross-sectional shape. The second square member 19 of the side member 17 is a wooden bar having a rectangular horizontal cross-sectional shape. The first square piece 18 is joined to the side surface of the second square piece 19 by a bonding material such as an adhesive, a screw, or a nail. The first square piece 18 is thinner than the first square piece 19, and the front-to-back thickness of the first square piece 18 is smaller than the front-to-back thickness of the second square piece 19. The front side of the first square piece 18 is flush with the front side of the second square piece 19. There is a step between the rear surface of the first square member 18 and the rear surface of the second square member 19.

The second square member 19 is joined to the side surface of the wall panel main body 11, that is, the side surface of the vertical stile of the rectangular frame body 12, using a joining material such as an adhesive, a screw, or a nail. The second square member 19 extends vertically along the side surface of the wall panel main body 11. The front and rear thickness of the second square member 19 is smaller than the front and rear thickness of the wall panel main body 11. The rear surface of the second square member 19 is flush with the rear surface of the wall panel main body 11, that is, the surface of the second panel member 14. There is a level difference between the front surface of the second square member 19 and the front surface of the wall panel main body 11. The front surface of the wall panel main body 11 refers to the surface of the first surface material 13.

The first square piece 18, which is thinner than the second square piece 19, is joined to the side surface of the second square piece 19, so that the side piece 17 has a first protrusion on its side surface, and the first protrusion is attached to the first square piece 18. corresponds to Note that although there is a seam between the square pieces 18 and 19 because they are joined to each other, the square pieces 18 and 19 may be integrally formed seamlessly.

(3) Steel Column The steel column 30 has a steel column main body 31, steel flanges 32, 33, and a plurality of steel stiffeners 34.

The steel column main body 31 is made of a square steel pipe. That is, the steel column main body 31 has a front plate 31a, a rear plate 31b, and side plates 31c, 31d on its outer side, and has a hollow 31e surrounded by plates 31a to 31d on its inner side.

The flanges 32 and 33 are welded to the side surface of the steel column main body 31, specifically to the side plate 31d. The flanges 32 and 33 extend obliquely from the side surface of the steel column main body 31. The flanges 32 and 33 are formed in the shape of a band plate so as to spread in the vertical and horizontal directions. The flanges 32 and 33 are inclined backward from a vertical plane perpendicular to the side surface of the steel column main body 31, that is, toward the inside of the building. That is, the flanges 32 and 33 are inclined toward the rear plate 31b from a plane parallel to the front plate 31a and the rear plate 31b of the steel column main body 31. The acute angle formed by the flange 32 and the side surface of the steel column main body 31 is, for example, 67.5°. Flanges 32, 33 are parallel to each other. The interval between the flanges 32 and 33, specifically the distance from the front surface of the flange 32 to the rear surface of the flange 33, is equal to the front-to-back thickness of the second square member 19 of the side member 17. The flanges 32, 33 have holes 32a, 33a through which tapping screws 62, 63 for fixing the joint member 40 to the flanges 32, 33 are passed.

The plurality of stiffeners 34 are arranged vertically at intervals between the flanges 32 and 33. Each stiffener 34 is horizontal and further perpendicular to the central axis of the steel column body 31. Each stiffener 34 is welded to the side surface of the steel column main body 31 and the flanges 32 and 33. A hole 34a is formed in the corner of the stiffener 34 by cutting out a corner sandwiched between the flange 32 and the side surface of the steel column main body 31. Similarly, a hole 34b is formed in the corner of the stiffener 34 by cutting out a corner sandwiched between the flange 33 and the side surface of the steel column main body 31. These holes 34a, 34b are used, for example, for welding the stiffener 34, and, for example, a welding torch is inserted into the holes 34a, 34b.

The flanges 32 and 33 are joint fittings that join the steel column main body 31 and a joint member 40, which will be described later.

(4) Joint member The joint member 40 is made of wood. The joint member 40 is fitted between the flanges 32 and 33 and projects laterally from between the flanges 32 and 33. The joint member 40 is fixed to the flange 32 by tapping screws 62 and to the flange 33 by tapping screws 63. The joint member 40 is hooked onto the side member 17 of the wall panel 10 and is fixed to the side member 17 of the wall panel 10 with a bonding material such as an adhesive, a screw, or a nail.

The joint member 40 includes a wooden triangular member 41 and a wooden square member 42.
The third triangular member 41 has a right-angled trapezoidal horizontal cross-sectional shape. The third triangular member 41 is fitted between the flanges 32 and 33. The third triangular member 41 has a contact surface 41a that makes surface contact with the side plate 31d of the steel column main body 31, a contact surface 41b that makes surface contact with the flange 32, a contact surface 41c that makes surface contact with the flange 33, and an abutting surface 41d. has. The abutment surface 41d is aligned with the edges of the flanges 32, 33 and the stiffener 34. The third triangular member 41 is fixed to the flange 32 by a tapping screw 62 and to the flange 33 by a tapping screw 63.

The square member 42 has a rectangular horizontal cross-sectional shape. The longitudinal thickness of the square member 42 is smaller than the longitudinal thickness of the triangular member 41, that is, the thickness from the contact surface 41b to the contact surface 41c. The square member 42 is fixed to the triangular member 41 using a bonding material such as an adhesive, a screw, or a nail. By joining the second square member 42, which is thinner than the third triangular member 41, to the abutment surface 41d of the third triangular member 41, the joint member 40 has a second protrusion on its side surface, and the second protrusion This corresponds to the fourth square member 42. Note that since the square pieces 41 and 42 are joined to each other, there is a seam between the square pieces 41 and 42, but the square pieces 41 and 42 may be seamlessly integrally formed.

The square member 42 protrudes from the contact surface 41c of the triangular member 41, and the protruding portion abuts against the edge of the flange 33.

The first square member 42 of the joint member 40 and the first square member 18 of the side member 17 are overlapped back and forth, and the second square member 42 is hooked behind the first square member 18. The second square member 42 is joined to the first square member 18 using a bonding material such as adhesive, screws, nails, or the like. The second square member 42 is abutted against the second square member 19 of the side member 17. The second square member 42 may be adhered to the second square member 19 with an adhesive. The first square member 18 is abutted against the abutment surface 41d of the third triangular member 41. The first square member 18 may be adhered to the third triangular member 41 with an adhesive. The first square member 18 projects from the contact surface 41b of the second square member 42, and the projecting portion abuts against the edge of the flange 32.

When the joint member 40 is joined to the side member 17, the front surfaces of the square members 18, 19 of the side member 17 and the front surface of the flange 32 are flush with each other, and the front faces of the square members 18, 19 and the flange 32 are flush with the wall panel main body. It is set back from the front of 11 to the inside of the building.

(5) Cover The cover 50 covers the square beams 18 and 19 recessed from the front surface of the wall panel main body 11 and the front surface of the flange 32, thereby covering the heads of the tapping screws 62. The cover 50 has a recess 51 on its rear surface, and the head of a tapping screw 62 protruding from the front surface of the flange 32 is accommodated in the recess 51.

The cover 50 has plywood 52, 53, 54 and a steel plate 55. The plywood boards 52, 53, and 54 are vertically elongated wooden strips. The first plywood 52 is adhered to the rear surface of the third plywood 54 by adhesive along one edge of the third plywood 54, and the first plywood 52 overhangs from one edge of the third plywood 54. The second plywood 53 is bonded to the rear surface of the third plywood 43 with an adhesive along the other edge of the third plywood 54, and the second plywood 53 overhangs from the other edge of the third plywood 54. The first plywood 52 and the second plywood 53 are spaced apart from each other in the width direction of the third plywood 54, and the gap between the first plywood 52 and the second plywood 53 forms a recess 51.

A steel plate 55 is attached to the front surface of the third plywood 54. The steel plate 55 covers the front surface and both edges of the third plywood 54. The steel plate 55 is plated with an aluminum/zinc alloy. More specifically, the steel plate 55 is a galvalume steel plate (registered trademark).

The first plywood 32 is bonded to the front surface of the flange 32 at a position closer to the side plate 31d of the steel column main body 31 than the head of the tapping screw 62 using a different material adhesive such as a cement adhesive. The second plywood 53 is in surface contact with the front surfaces of the flange 32 and the square members 18 and 19 at a position closer to the wall panel main body 11 than the head of the tapping screw 62. The second plywood 53 may be adhered to the front surface of the flange 32. The second plywood 53 may be adhered to the front surfaces of the square timbers 18 and 19.

A filler 58 is filled in the gap between one edge of the third plywood 54 and the side plate 31d of the steel column main body 31. A filler 59 is filled in the gap between the other edge of the third plywood 54 and the side surface of the wall panel main body 11. The fillings 58, 59 may be made of resin or cement, for example.

(6) Joining method The manufacturing method of the joining structure 1, that is, the joining method of the steel column 30 and the wall panel 10 will be explained.

A steel column 30 is prepared. That is, the flanges 32 and 33 and the plurality of stiffeners 34 are welded to the side plate 31d of the steel column main body 31, and the stiffener 34 is welded to the flanges 32 and 33.

Prepare the wall panel 10. That is, the wall panel body 11 is assembled, the second square piece 19 is joined to the side surface of the wall panel body 11, and the first square piece 18 is joined to the second square piece 19.

Prepare the joint member 40. That is, the triangular member 41 and the square member 42 are joined to each other.

Prepare the cover 50. That is, the steel plate 55 is attached to the third plywood 54, and the plywoods 52 and 53 are bonded to the third plywood 54.

A steel frame column 30 is erected at an installation location such as the foundation of a building or a steel frame beam, and a steel frame beam is laid on top of the steel frame column 30.
Before or after erection of the steel column 30, the third triangular member 41 of the joint member 40 is fitted between the flanges 32 and 33, the third triangular member 41 is fixed to the flange 32 with the tapping screw 62, and the third triangular member 41 is tapped. It is fixed to the flange 33 with screws 63.
Before or after fitting the third triangular member 41 between the flanges 32 and 33, the square member 42 of the joint member 40 is hooked behind the first square member 18 of the side member 17, and the square member 18 of the side member 17, 19 against the square members 42 and 41 of the joint member 40, respectively. Then, the first square member 42 and the first square member 18 are joined to each other. The square member 42 and the second square member 19 may be adhered to each other with an adhesive, or the third triangular member 41 and the first square member 18 may be adhered to each other with an adhesive.

After fixing the triangular members 41 to the flanges 32 and 33 and after joining the square members 42 and the first square members 18, the cover 50 is placed over the front faces of the square members 18 and 19 and the flange 32. At this time, the head of the tapping screw 62 protruding from the front surface of the flange 32 is accommodated in the recess 51 between the plywood boards 52 and 53, and the head of the tapping screw 62 is covered by the third plywood board 54. Further, the first plywood 32 is bonded to the front surface of the flange 32 using a different material adhesive. The second plywood 33 may be adhered to the front surface of the flange 32 using a different material adhesive. The second plywood 33 may be adhered to the front surfaces of the square timbers 18 and 19.

A filler 58 is filled in the gap between one edge of the third plywood 54 and the side plate 31d of the steel column main body 31. A filler 59 is filled in the gap between the other edge of the third plywood 54 and the side surface of the wall panel body 11.

(7) Advantageous Effects Since the material of the wall panel body 11 is different from the material of the steel column body 31, the wall panel body 11 cannot be directly welded to the steel column body 31. Even so, the steel flanges 32 and 33 are welded to the side surfaces of the steel column main body 31 and protrude from the sides, and the wooden joint member 40 is joined to the flanges 32 and 33 by tapping screws 62 and 63, The joint member 40 and the wooden side member 17 overlap and are joined to each other, and the side member 17 is joined to the side surface of the wall panel main body 11, so that the wall panel main body 11 is attached to the steel column main body 31. Fixed. Since the joint member 40 and the side members 17 fit into the joint between the side surface of the steel column main body 31 and the side surface of the wall panel main body 11, they fit well between the wall panel main body 11 and the steel column main body 31, and the wall panel main body 11 is firmly attached to the steel column main body 31.

Since the joint member 40 and the side member 17 fit into the joint between the side surface of the steel column main body 31 and the side surface of the wall panel main body 11, heat flow through the joint can be suppressed.

The flanges 32 and 33 protrude from the side surface of the steel column main body 31 obliquely to the front and rear surfaces of the steel column main body 31, and the wall panel main body 11 extends in a direction parallel to the flanges 32 and 33. Outdoors, the corner formed by the joint between the steel column main body 31 and the wall panel main body 11 is a protruding corner, and outdoor snow is difficult to stay at the corner. The wind hits the corner and is easily divided into both sides of the corner, reducing the wind pressure applied to the steel column main body 31 and the wall panel main body 11, so that the joint structure 1 is less likely to be damaged.

Since the joint member 40 is sandwiched between the flanges 32 and 33 and is joined to the flanges 32 and 33 by the tapping screws 62 and 63, the joint member 40 is firmly connected to the steel column main body 31 and is The wall panel main body 11 is firmly connected to the steel column main body 31.

Since the stiffener 34 is welded to the steel column main body 31 and the flanges 32, 33 between the flanges 32, 33, the joint member 40 is supported by the stiffener 34 when the joint member 40 is inserted between the flanges 32, 33. It will be done. Therefore, the joint member 40 can be stably joined to the flanges 32 and 33 by the tapping screws 62 and 63.

Since the cover 50 covers the flange 32 and the side member 17 outdoors, the joint between the steel column main body 31 and the wall panel main body 11 is protected by the cover 50. Furthermore, corrosion and deterioration of the tapping screw 62 can be suppressed.

Since the head of the tapping screw 62 is accommodated in the recess 51 of the cover 50, the cover 50 stably covers the flange 32 and the side member 17 even if the head of the screw 52 protrudes.

The joint structure 1 is applied to the outer periphery of the first floor of a building, and the steel column main body 31 is used as a structural member that bears the load acting on the building. Therefore, this joint structure 1 contributes to extending the life of the building. A long-life building using this bonded structure 1 will contribute to suppressing the waste of the earth's limited resources, and will also contribute to suppressing the generation of waste materials.
Since wood is used in a part of the joint structure 1, the amount of energy used and the amount of carbon dioxide emitted from the growing of trees to the production of wood are the same as those from the extraction of raw materials to the production of industrial products such as steel. This is less than the amount of energy used and amount of carbon dioxide emitted. Therefore, the bonded structure 1 plays a role in reducing global carbon dioxide emissions and achieving Sustainable Development Goals (SDGs) through global energy conservation.

(8) Modification Instead of the wall panel 10 described above, a wooden frame may be joined to the steel column main body 31 via the joint member 40, flanges 32, 33, and stiffener 34. In this case, the square members 19 of the side members 17 may be wooden pillars. When the square beam 19 is joined to the side surface of the frame body, the object to which the square beam 19 is directly attached may be either a column or a beam of the frame body.

The wall panel main body 11 does not need to be made of wood, and may be made of lightweight aerated concrete, for example.
Building materials other than the wall panel 10 and the wooden frame may be joined to the steel column main body 31 via the joint members 40, flanges 32, 33, and stiffeners 34.

<Second embodiment>
(1) Overview of Joint Structure FIG. 5 is a horizontal cross-sectional view of the joint structure 101. FIG. 6 is an exploded view of the joining structure 101. FIG. 7 is a front view of the joint structure 101 seen from outside. In FIG. 7, illustration of the joint member 140R, side member 117R, steel plate 116R, and padding 169R that overlap the flange 132R is omitted so that the flange 132R can be visually recognized. The same applies to the flange 132L.

The joint structure 101 is a dissimilar material joint structure in which the wooden wall panels 100R, 100L and the steel column 30 are joined to each other. The joint structure 101 is a component of the outer periphery of the building. The joint structure 101 is applied, for example, to the outer periphery of the first floor of a building. In the following description, the front surface of each member refers to the surface facing the outside of the building, and the rear surface of each member refers to the surface facing the inside of the building.

The joint structure 101 includes wall panels 100R and 100L, a steel column 30, joint members 140R and 140L, and a cover 150. The connection between the wall panel 100R and the steel column 30 is symmetrical with respect to the connection between the wall panel 100L and the steel column 30. Therefore, below, the connection between the wall panel 100R and the steel column 30 will be mainly explained.

(2) Wall panel The wall panel 100R is a wooden building material. The wall panel 100R has a wall panel main body 111R and a side member 117R, the wall panel main body 111R has a rectangular frame 112R, face members 113R, 114R, and a heat insulating material 115R, and the side member 117R has square members 118R, 119R.

Since the wall panel main body 111R is assembled in the same manner as the wall panel main body 11 of the first embodiment, a detailed explanation of the rectangular frame 112R, the face materials 113R, 114R, and the heat insulating material 115R will be omitted.

The side member 117R is made of wood. The side member 117R is joined to the side surface of the wall panel main body 111R, that is, the side surface of the vertical stile of the rectangular frame 112R. The side member 117R extends vertically along the side surface of the wall panel main body 111R.

The first square member 118R of the side member 117R is a wooden bar having a rectangular horizontal cross-sectional shape. The second square member 119R of the side member 117R is a wooden bar having a rectangular horizontal cross-sectional shape. The second square member 119R is joined to the rear surface of the first square member 118R by a bonding material such as an adhesive, a screw, or a nail. The second square piece 119R is thinner than the first square piece 118R, and the width of the second square piece 119R is smaller than the width of the first square piece 118R. The side surface of the second square beam 119R is flush with the side surface of the first square beam 118R. The side surfaces of the square members 118R and 119R are joined to the side surface of the wall panel main body 111R, that is, the side surface of the vertical stile of the rectangular frame 112R, using a bonding material such as adhesive, screws, or nails. An aluminum/zinc alloy plated steel plate 116R is attached to the front surfaces of the second square member 119R and the wall panel main body 111R.

(3) Steel Column The steel column 130 has a steel column main body 131 and steel flanges 132R and 132L.

The steel column main body 131 is made of a square steel pipe. The front plate 131a of the steel column body 131 faces the outside of the building, the back plate 131b of the steel column body 131 faces the inside of the building, the side plate 131c of the steel column body 131 faces the side of the wall panel 100L, and the steel column body 131 The side plate 131d faces the side surface of the wall panel 100R, and the hollow 131e of the steel column main body 131 is surrounded by the plates 131a to 131d.

The side plate 131d of the steel column main body 131 is butted against the first square member 118R. The side plate 131d of the steel column main body 131 is spaced apart from the second square member 119R, and the gap between the side plate 131d of the steel column main body 131 and the second square member 119R is filled with a filler 169R. The filling 169R may be made of resin or cement, for example.

The flange 132R is constituted by one of the two webs of the steel angle. Specifically, the other web of the angle is in surface contact with the side plate 131d of the steel column main body 131 and welded to the side plate 131d, or fixed with screws, etc., and one web of the angle (corresponding to the flange 132R) is attached to the steel frame 131d. It stands perpendicular to the side plate 131d of the column main body 131. The flange 132R protrudes from the side surface of the steel column main body 131. The flange 132R is formed in a strip shape so as to spread vertically and horizontally, and is parallel to the front plate 131a and the rear plate 131b of the steel column main body 131. The width of the flange 132R is equal to the width of the first square member 118R of the side member 117R. The flange 132R has a hole 133aR through which a tapping screw 162R for fixing the joint member 140R to the flange 132R is passed.

The edge of the flange 132R is abutted against the side surface of the wall panel main body 111R. The flange 132R is recessed from the rear surface of the wall panel main body 111R. The flange 132R is a joint fitting that joins the steel column main body 131 and a joint member 140R, which will be described later.

In the same way that the flange 132R is attached to the side plate 131d of the steel column main body 131, the flange 132L is attached to the side plate 131c of the steel column main body 131. The flange 132L is a joint fitting that joins the steel column main body 131 and a joint member 140L, which will be described later.

(4) Joint member The joint member 140R is constituted by a wooden square lumber having a rectangular horizontal cross-sectional shape. The joint member 140R is fitted into the corner formed by the flange 132R and the side plate 131d of the steel column main body 131. The joint member 140R has a contact surface 141a that makes surface contact with the side plate 131d of the steel column main body 131, a contact surface 141b that makes surface contact with the first square member 118R of the side member 117R, a contact surface 141c that makes surface contact with the flange 132R, and a wall. It has an abutment surface 141d that makes surface contact with the side surface of the panel main body 111R. The abutment surface 141d is aligned with the edge of the flange 132R.

The contact surface 141c of the joint member 140R is abutted against the front surface of the flange 132R, and the joint member 140R is fixed to the flange 132R by a tapping screw 162R.

The joint member 140R and the first square member 118R of the side member 117R overlap front and back, and the joint member 140R is hooked behind the first square member 118R. The joint member 140R is joined to the first square member 118R by a screw 164R. Nails or adhesive may be employed in place of screws 164R.

The joint member 140R is abutted against the side surface of the wall panel main body 111R. The joint member 140R may be adhered to the side surface of the wall panel main body 111R with an adhesive.

(5) Cover The cover 150 hides the steel column main body 131 inside the building and insulates the space inside the building from the steel column main body 131. The cover 150 covers the rear surface of the flange 132R that is recessed from the rear surface of the wall panel main body 111R, and hides the head of the tapping screw 162R.

The cover 150 has a decorative board 151, a heat insulating material 152, studs 153R, 154R, 155R, 153L, 154L, 155L, and decorative boards 156R, 157R, 156L, 157L. Since the cover 150 is provided symmetrically, the right part of the cover 150 will be mainly described, and the description of the left part of the cover 150 will be omitted.

The decorative board 151 is provided in the form of a strip extending vertically and horizontally. The decorative board 151 is spaced apart from the back plate 131b of the steel column main body 131 and faces the back plate 131b.

The studs 153R, 154R, and 155R are provided parallel to each other and assembled into a prismatic shape. The stud 153R extends along the right edge of the decorative board 151 and is attached to the front surface of the decorative board 151. The studs 153R and 154R are assembled in an L shape. That is, the stud 154R is attached and fixed to the front surface of the stud 153R, and protrudes to the right from the right edge of the front surface of the stud 153R. The stud 154R is abutted against the rear surface of the wall panel main body 111R, and is spaced apart from the rear surface of the flange 132R to cover the flange 132R. Stud 154R covers the head of self-tapping screw 162R. The stud 154R is fixed to the rectangular frame 112R of the wall panel main body 111R with screws 158R. The stud 155R is fitted into the corner formed by the studs 153R and 154R. Stud 155R is fixed to stud 153R with screw 159R.

The right studs 153R, 154R are spaced to the right from the left studs 153L, 154L. The steel column main body 131 is partially fitted between the right studs 153R, 154R and the left studs 153L, 154L.

The heat insulating material 152 is loaded into a space surrounded by the decorative board 151, the steel column main body 131, and the studs 153R and 153L. The heat insulating material 152 is made of glass wool or rock wool, for example.

A decorative board 156R is attached to the rear surface of the stud 155R. The decorative board 156R is flush with the decorative board 151. A decorative board 157 is attached to the right side surface of the studs 154R and 155R.

(6) Joining method A method for manufacturing the joining structure 101, that is, a method for joining the steel column 130 and the wall panels 110R and 110L will be described.

A steel column 130 is prepared. That is, by welding the two angles to the side plates 131c and 131d of the steel column main body 131, respectively, the webs of the angles are made to protrude laterally from the two side surfaces of the steel column main body 131 as flanges 132R and 132L.

Prepare the wall panel 110R. That is, the wall panel main body 111R is assembled, and the square members 118R and 119R are joined to the side surfaces of the wall panel main body 111R. The wall panel 110L is also prepared in the same way.

Prepare joint members 140R and 140L.
Studs 153R and 153L are attached to the decorative board 151, studs 154R and 154L are joined to the studs 153R and 153L, and a heat insulating material 152 is loaded between the studs 153R and 154L. Decorative plates 156R and 157R are attached to the stud 155R, and decorative plates 156L and 157L are attached to the stud 155L.

The steel frame column 130 is erected at an installation location such as the foundation of a building or a steel frame beam, and the steel frame beam is laid on top of the steel frame column 130.
Before or after erection of the steel column 130, the joint member 140R is fixed to the flange 132R with a tapping screw 162R. Similarly, the joint member 140L is fixed to the flange 132L.
Before or after attaching the joint member 140R to the flange 132R, the joint member 140R is hooked behind the first square member 118R of the side member 117R. Then, the first square member 118R is fixed to the joint member 140R with a screw 164R. Similarly, the left joint member 140L is attached to the wall panel 110L.

After that, the assembly consisting of the decorative board 151, the studs 153R, 154R, 153L, 154L, and the heat insulating material 152 is set behind the steel column 130, and the steel column main body 131 is partially attached to the right studs 153R, 154R and the left side. It is fitted between the studs 153L and 154L, and the studs 154R and 154L are abutted against the rear surfaces of the wall panel bodies of the wall panels 110R and 110L, respectively. At this time, the head of the tapping screw 162R is covered and hidden by the stud 154R.
Then, the stud 154L is fixed to the rear surface of the wall panel main body 111R with a screw 158R. Similarly, the stud 154L is fixed to the rear surface of the wall panel main body of the wall panel 110L.

Next, the stud 155R is fitted into the corner formed by the studs 153R and 154R, and the decorative board 157R is applied to the stud 154R, so that the decorative board 156R is flush with the decorative board 151. Then, the stud 155R is fixed to the stud 153R with a screw 159R. Similarly, an assembly consisting of stud 155L and decorative plates 156L and 157L is fixed to stud 153L.

Next, the steel plate 116R is attached to the front surface of the second square member 119R and the wall panel main body 111R. The same process is applied to the left wall panel 110L.
Next, the gap between the side plate 131d of the steel column main body 131 and the second square member 119R is filled with a filler 169R. The same treatment is applied to the gap between the side plate 131c of the steel column main body 131 and the left wall panel 110L.

(7) Advantageous Effects The steel flange 132R is welded to the side surface of the steel column main body 131 and protrudes from the side surface, the wooden joint member 140 is joined to the flange 132R by the tapping screw 162R, and the wooden joint member 140 and the wooden The side members 117 are overlapped in the front and back and are joined to each other, and the side members 117 are joined to the side surface of the wall panel main body 111R. Therefore, even if the material of the wall panel body 111R is different from the material of the steel column body 131, the wall panel body 111R is attached and fixed to the steel column body 131. Since the joint member 140R and the side member 117R fit into the joint between the side surface of the steel column main body 131 and the side surface of the wall panel main body 111R, they fit well between the wall panel main body 111R and the steel column main body 131, and the wall panel main body 111R is firmly attached to the steel column main body 131.

Since the joint member 140 and the side member 117 fit into the joint between the side surface of the steel column main body 131 and the side surface of the wall panel main body 111R, heat flow at the joint can be suppressed.

Since the cover 150 has a heat insulating material 152 and the heat insulating material 152 covers the steel column body 131 indoors, heat leakage in the steel column body 131 can be prevented.

(8) Modification Instead of the wall panel 110R, a wooden frame may be joined to the steel column main body 131 via the joint member 140R and the flange 132R. In this case, the side member 17 may be directly applied to either a column or a beam of the frame body.

The wall panel main body 11 does not need to be made of wood, and may be made of lightweight aerated concrete, for example.
Building materials other than the wall panel 110R and the wooden frame may be joined to the steel column main body 131 via the joint member 140R and the flange 132R.

<Third embodiment>
(1) Overview of joint structure FIG. 8 is a horizontal cross-sectional view of the joint structure 201. FIG. 9 is an exploded view of the joining structure 201.

The joint structure 201 is a structure in which a steel door 210 and a steel column 230 are joined to each other. The joint structure 201 is a component of the outer periphery of the building. The joint structure 201 is applied, for example, to the outer periphery of the first floor of a building. In the following description, the front surface of each member refers to the surface facing the outside of the building, and the rear surface of each member refers to the surface facing the inside of the building.

The joint structure 201 includes a steel door 210, a steel column 230, a joint member 240, and a cover 250.

(2) Steel Door The steel door 210 is a building material made of steel. The steel door 210 has a door frame 211, a door body 212, decorative panels 215, 216, and side members 217.

Door frame 211 is made of steel. The door frame 211 has a pair of upper and lower steel horizontal frames and a pair of left and right vertical steel frames, and the door frame 211 is assembled by assembling these horizontal frames and vertical frames into a rectangular frame shape. The door frame 211 may be plated with an aluminum/zinc alloy.

Door body 212 is made of steel. A door body 212 is arranged inside the door frame 211. By connecting the side part of the door body 212 to the vertical frame of the door frame 211 by a hinge, the door body 212 can be in a closed state where the inside of the door frame 211 is closed and an open state where the inside of the door frame 211 is open. It can be opened and closed between. The door body 212 may be opened inward or outward. The door body 212 may be plated with aluminum/zinc alloy plating or the like.

The side material 217 is a wooden square material having a rectangular horizontal cross-sectional shape. The side member 217 is attached to the side surface of the door frame 211. The side member 217 extends vertically along the side surface of the door frame 211.

The decorative plates 215 and 216 are attached to the rear and side surfaces of the side member 217, respectively.

(3) Steel Column The steel column 230 has a steel column main body 231 and steel flanges 232 and 233.

The steel column main body 231 is made of a square steel pipe. The front plate 231a of the steel column body 231 faces the outside of the building, the back plate 131b of the steel column body 231 faces the inside of the building, the side plate 231d of the steel column body 231 faces the side of the door frame 211, and the steel column body 231 The side plate 231c faces the opposite side of the door frame 211, and the hollow 231e of the steel column main body 231 is surrounded by the plates 231a to 231d.

The flange 233, like the flange 1 32R in the second embodiment, is constituted by one of the two webs of the steel angle. The flange 233 protrudes from the side surface of the steel column main body 231. The flange 233 is in the shape of a strip parallel to the front plate 231a and the rear plate 231b of the steel column main body 231. The flange 233 has a hole through which a tapping screw 23 for fixing the joint member 240 to the flange 233 is passed.

The flange 232, like the flange 1 32R in the second embodiment, is constituted by one of the two webs of the steel angle. The flange 232 protrudes from the side surface of the steel column main body 231. Flange 232 and flange 233 are parallel to each other. The flange 232 is located further outside the building than the flange 233.

The flanges 232 and 233 are joint fittings that join the steel column main body 231 and a joint member 240, which will be described later.

(4) Joint member The joint member 240 is constituted by a wooden square piece having a substantially rectangular horizontal cross-sectional shape. The joint member 240 is fitted between the flanges 232 and 233, and projects laterally from between the flanges 232 and 233. The joint member 240 is fixed to the flange 232 by tapping screws 262 and to the flange 233 by tapping screws 263.

The joint member 240 has a contact surface 241a that is in surface contact with the side plate 231d of the steel column main body 231, a contact surface 241b that is in surface contact with the flange 232, a surface 241e facing the same direction as the contact surface 241b, and a surface 241e that faces the flange 233 and the side member. 217, and an abutment surface 241d that makes surface contact with the side surface of the door frame 211. There is a step between the contact surface 241b and the surface 241e, the contact surface 241b is one step lower than the surface 241e, and the contact surface 241b is the bottom of a recessed part recessed from the surface 241e. The flange 232 and the head of the self-tapping screw 262 fit into the recess.

The joint member 240 is joined to the side member 217 using a joining material such as a screw, a nail, or an adhesive.

(5) Cover The cover 250 covers the joint member 240 recessed from the front surface of the door frame 211 and the front surface of the flange 232, and hides the head of the tapping screw 262. The cover 250 has plywood 252, 254 and a steel plate 255.

The plywood 252 covers the joint member 240 recessed from the front surface of the door frame 211 and the front surface of the flange 232, and covers the heads of the tapping screws 262. The plywood 252 may be adhered to the splicing member 240. Plywood 254 is adhered to the front surface of plywood 252. Plywood 254 has a width narrower than the width of plywood 252. A steel plate 255 is attached to the front surface of the plywood 254. Steel plate 255 covers the front surface and edges of plywood 254. The steel plate 255 is plated with an aluminum/zinc alloy. More specifically, the steel plate 255 is a galvalume steel plate (registered trademark).

A filler 258 is filled in the gap between one edge of the plywood 254 and the side plate 231d of the steel column main body 231. A filler 259 is filled in the gap between the other edge of the plywood 254 and the side surface of the door frame 211. The fillings 258, 259 may be made of resin or cement, for example.

(6) Joining method A method for manufacturing the joining structure 201, that is, a method for joining the steel column 230 and the steel door 210 will be described.

A steel column 230 is prepared. That is, by welding the two angles to the side plate 131d of the steel column main body 231, the webs of the angles are made to protrude laterally from the side surface of the steel column main body 131 as flanges 232, 233.

A steel door 210 is prepared. That is, the side member 217 is attached to the side surface of the door frame 211, the decorative plates 215 and 216 are attached to the rear and side surfaces of the side member 217, respectively, and the door body 212 is attached to the door frame 211. Note that the door body 212 may be attached later. Further, the decorative boards 215 and 216 may also be attached later.

Prepare the joint member 240.
Prepare the cover 250. That is, the steel plate 255 is attached to the plywood 254, and the plywood 252 is adhered to the plywood 254.

The steel frame column 230 is erected at an installation location such as the foundation of a building or a steel frame beam, and the steel frame beam is laid on top of the steel frame column 230.
Before or after erection of the steel column 230, the joint member 240 is fitted between the flanges 232 and 233, the joint member 240 is fixed to the flange 232 with the tapping screw 262, and the joint member 240 is fixed to the flange 233 with the tapping screw 263. do.

Before or after fitting the joint member 240 between the flanges 232 and 233, the joint member 40 is hooked in front of the side member 217, and the joint member 240 is abutted against the side surface of the door frame 211. Then, the joint member 240 and the side member 217 are bonded to each other using a bonding material.

After fixing the joint member 240 to the flanges 232 and 233 and after joining the joint member 240 and the side member 217, the cover 250 is placed over the front surface of the joint member 240 and the flange 232. At this time, the head of the tapping screw 262 is covered by the cover 250. The plywood 252 of the cover 250 may be adhered to the joint member 240.

A filler 258 is filled in the gap between one edge of the plywood 254 and the side plate 31d of the steel column main body 231. A filler 259 is filled in the gap between the other edge of the plywood 254 and the side surface of the door frame 211.

(7) Advantageous Effects The steel flanges 232, 233 are welded to the side surfaces of the steel column main body 231 and protrude from the side surfaces, and the wooden joint member 240 is joined to the flanges 232, 233 by tapping screws 262, 263. The joint member 240 and the wooden side member 217 overlap and are joined to each other, and the side member 217 is joined to the side surface of the door frame 211, so that the steel door 210 is attached to the steel column main body 231. Fixed. Since the joint member 240 and the side members 217 fit into the joint between the side surface of the steel column main body 231 and the side surface of the door frame 211, they fit well between the door frame 211 and the steel column main body 231, and the steel door 210 It is firmly attached to the steel column main body 231.

Since the joint member 240 is sandwiched between the flanges 232 and 233, and the joint member 240 is joined to the flanges 232 and 233 by the tapping screws 262 and 263, the joint member 240 is firmly connected to the steel column main body 231, and the The steel door 210 is firmly connected to the steel column main body 231. Therefore, the joint structure 201 can withstand vibrations, shocks, etc. when the steel door 210 is opened and closed.

Since the cover 250 covers the flange 232 and the joint member 240 outdoors, the joint between the steel column main body 231 and the door frame 211 is protected by the cover 250. Further, corrosion and deterioration of the tapping screw 262 can be suppressed.

The contact surface 241b of the joint member 240 is one step lower than the surface 241e, and the contact surface 241c is the bottom of a recess recessed from the surface 241e, and the flange 232 and the head of the tapping screw 262 are accommodated in the recess. . Therefore, the cover 250 stably covers the flange 232 and the joint member 240.

<Fourth embodiment>
(1) Overview of floor structure FIG. 10 is a plan view showing the skeleton of the floor structure 300. FIG. 11 is a cross-sectional view of a plane along XI-XI shown in FIG. 10, viewed in the direction of the arrow. FIG. 12 is a sectional view taken along the line XII-XII shown in FIG. 10 and viewed in the direction of the arrow. 13 and 14 are vertical cross-sectional views of the floor structure 300. The position of the cross section shown in FIG. 13 is the same as the position of the cross section shown in FIG. The cross section shown in FIG. 14 is perpendicular to the cross sections shown in FIGS. 11 and 12. FIG. 15 is an exploded view of the heat insulating structure 305 of the floor structure 300.

The floor structure 300 is applied to the floor of the first floor of a building. In particular, the floor structure 300 is applied to the floor below a simple lift car that goes up and down between the first floor and the upper floor of a building. The simple lift car descends and lands on the floor structure 300. Therefore, the floor structure 300 can also be called a pit for a simple lift. Note that the floor structure 300 may be applied not to the floor of the first floor but to the floors of the second or higher floors. Furthermore, the floor structure 300 may be applied to places other than simple lift pits.

The floor structure 300 includes steel beams 391 to 394, a plurality of foundations 397, a plurality of floor panels 398, a pair of second steel beams 330, a second floor panel 380, and a pair of heat insulation structures 305.

(2) Steel beams Steel beams 391 to 394 are floor beams arranged in a lattice shape on the foundation 390. The steel beams 391 to 394 are made of H-shaped steel or the like. A steel beam 391 is provided on the foundation 390, and a steel beam 392 is installed parallel to the steel beam 391 between the foundations. The beam thickness of the steel beams 391 and 392 is larger than that of the steel beams 393 and 394. One end of the steel beam 393 is connected to the steel beam 391 by a bracket 395, and the other end of the steel beam 393 is connected to the steel beam 392 by a bracket 396. Both ends of the steel beam 394 are similarly connected to the steel beams 391 and 392, respectively, and the steel beams 393 and 394 are constructed parallel to each other between the steel beams 391 and 392. The upper surfaces of the steel beams 393 and 394 are flush with the upper surfaces of the steel beams 391 and 392. A rectangular area surrounded by these steel beams 391 to 394 becomes an area where the simple lift car will land.

(3) Base The base 397 is made of wood. A foundation 397 is installed on steel beams 391 to 394. The base 397 is arranged in a grid pattern.

(4) Floor Panel The floor panel 398 is made of wood. The floor panel 398 has a wooden rectangular frame, one or more wooden auxiliary beams, a pair of wooden facings, and a heat insulator. The rectangular frame body is made by assembling four frame materials into a rectangular frame shape. The auxiliary crosspiece is assembled to the rectangular frame inside the rectangular frame. The face material covers the area surrounded by the rectangular frame and is attached to the upper and lower surfaces of the rectangular frame, respectively. The heat insulating material is loaded inside the rectangular frame.

The floor panel 398 is provided between the foundation 397 and the adjacent foundation outside the area surrounded by the steel beams 391 to 394. Floor panel 398 constitutes the floor of the first floor of the building.

(4) Second steel beams The two second steel beams 330 are made of H-shaped steel or the like. The second steel beam 330 is located between the steel beams 393 and 394 and is below the pit. One end of the second steel beam 330 is connected to the steel beam 391 by a bracket 337, the other end of the second steel beam 330 is connected to the steel beam 392 by a bracket 338, and the second steel beam 330 is connected to the steel beam 391, parallel to each other. It is constructed between 392. The beam thickness of the second steel beam 330 is smaller than the beam thickness of the steel beams 391 to 394.
The upper surface of the second steel beam 330 is one step lower than the upper surfaces of the steel beams 391 to 394.

One second steel beam 330 is provided parallel to the steel beam 393, and there is a slight gap 375 between the second steel beam 330 and the steel beam 393. There is a level difference between the lower surface of the second steel beam 330 and the lower surface of the steel beam 393.
The other second steel beam 330 is provided parallel to the steel beam 394, and there is a slight gap 376 between the second steel beam 330 and the steel beam 394. There is a level difference between the lower surface of the second steel beam 330 and the lower surface of the steel beam 393.

(5) Second floor panel The second floor panel 380 is made of wood. The second floor panel 380 has a wooden rectangular frame 382, one or more wooden auxiliary beams 386, wooden facings 383, 384, and a heat insulating material 385. The rectangular frame body 382 is made by assembling four frame members into a rectangular frame shape. The auxiliary crosspiece 386 is assembled to the rectangular frame 382 inside the rectangular frame 382. The face materials 383 and 384 cover the area surrounded by the rectangular frame 382 and are attached to the upper and lower surfaces of the rectangular frame 382, respectively. A heat insulating material 385 is loaded inside the rectangular frame 382.

The second floor panel 380 is laid on the second steel beam 330 and spans between the second steel beams 330 in an area surrounded by the steel beams 391 to 394. The frame body 382 of the second floor panel 380 is fixed to the upper flange of the second steel beam 330 by bolt and nut fastening parts. Specifically, the nut is welded to the lower surface of the upper flange of the second steel beam 330, and bolts are fastened to the nut from above the second floor panel 380 through holes in the floor panel 380 and the upper flange.

The second floor panel 380 constitutes the floor below the pit, and the lowered simple lift car rests on the second floor panel 380. Note that when the floor structure 300 is applied to a place other than the pit of a simple lift, the unit bath is installed on the second floor panel 380, and the floor surface of the floor panel 398 is flush with the floor surface of the unit bath. There may be no step between the surfaces.

(6) Heat Insulation Structure One of the two heat insulation structures 305 insulates the outside and inside of the building at one of the second steel beams 330 and steel beams 393, that is, between the second floor panel 380 and the floor panel 398. do. The other of the two heat insulation structures 305 insulates the outside and inside of the building at the other second steel beam 330 and steel beam 394, that is, between the second floor panel 380 and the floor panel 398.

The two heat insulating structures 305 are symmetrical to each other. Therefore, one heat insulation structure 305 will be described in detail.

The heat insulating structure 305 includes joint fittings 331, 332, 333, joint members 341, 342, 343, and heat insulating materials 311, 312, 313. The heat insulating structure 305 has a joining structure that joins the second steel beam 330 and the heat insulating material 311 to each other. Furthermore, the heat insulating structure 305 has a joining structure that joins the second steel beam 330 and the heat insulating material 312 to each other. The heat insulating structure 305 has a joining structure that joins the steel beam 393 and the heat insulating material 312 to each other.

The joint fitting 331 is provided on the second steel beam 330. Specifically, the main body of the second steel beam 330 is an H-shaped steel, and the fitting 331 is attached by welding to the corner sandwiched between the upper flange and the web of the main body of the second steel beam 330. The joint fitting 331 is shaped into a channel type, that is, a U-shape, and the groove of the joint fitting 331 is directed toward the web of the main body of the second steel beam 330, so that the web of the main body of the second steel beam 330 is connected to the fitting fitting 331. The groove is covered and closed. The joint fitting 331 is thin, and screws and the like are easily driven into the joint fitting 331.

The joint member 341 is made of a wooden square piece having a rectangular vertical cross section. The joint member 341 is fixed to the side surface of the joint fitting 331 by screws 361 under the upper flange of the main body of the second steel beam 330. The joint member 341 extends along the axial direction of the second steel beam 330. The side surface of the joint member 341 is aligned with the edge of the upper flange of the main body of the second steel beam 330.

The heat insulating material 311 is a building material made of foamed resin, glass wool, rock wool, or the like. The heat insulating material 311 is bonded to the joint member 341 using a bonding material such as an adhesive. The upper end of the heat insulating material 311 is abutted against the lower surface of the second floor panel 380. The upper end of the insulation material 311 may be bonded to the lower surface of the second floor panel 380 by a bonding material such as an adhesive.

The joint fitting 332 is provided on the second steel beam 330. Specifically, the main body of the second steel beam 330 is an H-shaped steel, and the fitting 332 is attached to the lower surface of the lower flange of the main body of the second steel beam 330 by welding. The joint fitting 332 is shaped like a channel, that is, a U-shape, and the groove of the joint fitting 332 is directed toward the lower flange of the main body of the second steel beam 330, so that the lower flange of the main body of the second steel beam 330 is connected. The groove of the metal fitting 332 is covered and closed. The joint fitting 332 is thin, and screws and the like are easily driven into the joint fitting 332.

The joint member 342 is made of a wooden square piece having a rectangular vertical cross section. The joint member 342 is fixed to the lower surface of the joint fitting 332 by a tapping screw 262. The joint member 342 extends along the axial direction of the second steel beam 330.

The joint fittings 333 are provided on the steel beam 393. Specifically, the main body of the steel beam 393 is an H-shaped steel, and the fitting 333 is attached to the lower surface of the lower flange of the main body of the steel beam 393 by welding. The fitting 333 is shaped like a channel, that is, a U-shape, and the groove of the fitting 333 is directed toward the lower flange of the main body of the steel beam 393, and the lower flange of the main body of the steel beam 330 is directed toward the groove of the fitting 332. is covered and closed.

The lower surface of the connecting fitting 333 is flush with the lower surface of the connecting fitting 332, and the lower surface of the connecting fitting 333 is flush with the lower surface of the connecting fitting 332. The joint fitting 333 is thin, and screws and the like are easily driven into the joint fitting 333.

The joint member 343 is made of a wooden square piece having a rectangular vertical cross section. The joint member 343 is fixed to the lower surface of the joint fitting 333 by a tapping screw 263. The joint member 343 extends along the axial direction of the steel beam 393. The lower surface of the joint member 343 is flush with the lower surface of the joint member 342, and the lower surface of the joint member 343 is flush with the lower surface of the joint member 342.

The heat insulating material 312 is a building material made of foamed resin, glass wool, rock wool, or the like. The heat insulating material 312 is bonded to the lower surfaces of the joint member 342 and the joint member 343 using a bonding material such as an adhesive. Both sides of the heat insulator 312 may be joined to the heat insulators 311 and 313 using a bonding material such as an adhesive.

The heat insulating material 313 is a building material made of foamed resin, glass wool, rock wool, or the like. The heat insulating material 313 is bonded to the joint member 343 using a bonding material such as an adhesive. Further, the heat insulating material 313 may be bonded to the side surface of the base 397 on the steel beam 393 using a bonding material such as an adhesive. The upper end of the heat insulating material 313 is abutted against the lower surface of the floor panel 398. The upper end of the heat insulating material 313 is abutted against the lower surface of the floor panel 398. The upper end of the insulation 313 may be bonded to the lower surface of the floor panel 398 by a bonding material such as an adhesive or the like.

The heat insulating materials 311 to 313 are arranged in a channel shape, that is, in a U-shape. A steel beam 393, a second steel beam 330, joint fittings 331, 332, 333, and joint members 341, 342, 343 are accommodated in the grooves formed by the heat insulating materials 311 to 313.

(6-2) Joining method The joining method of the steel beams 330, 393 and the heat insulating materials 311, 312, 313 will be explained.
A fitting 332 is joined to the lower surface of the lower flange of the H-shaped steel, and a fitting 331 is welded to the corner sandwiched between the upper flange and the web of the H-shaped steel. Thereby, the second steel beam 330 is prepared.
A joint fitting 333 is welded to the lower surface of the lower flange of the H-shaped steel. Thereby, the steel beam 393 is prepared.

A steel beam 393 and a second steel beam 330 are constructed parallel to each other between steel beams 391 and 392.

The joint member 341 is fixed to the side surface of the joint fitting 331 with screws 361 under the upper flange of the main body of the second steel beam 330.
The joint member 342 is fixed to the lower surface of the joint fitting 332 with screws 362.
The joint member 343 is fixed to the lower surface of the joint fitting 333 with screws 363.

The heat insulating material 311 is bonded to the joint member 341 using a bonding material such as an adhesive.
The heat insulating material 312 is bonded to the lower surfaces of the joint members 342 and 343 using a bonding material such as an adhesive.
The heat insulating material 313 is bonded to the joint member 343 and the base 397 using a bonding material such as an adhesive.

(7) Advantageous Effects Since the step is between the second floor panel 380 and the floor panel 398, heat flow between the second floor panel 380 and the floor panel 398 is likely to occur. Even so, heat transfer between the second floor panel 380 and the floor panel 398 is suppressed by the insulation structure 305. This is because the part between the second floor panel 380 and the floor panel 398 is covered from below by the heat insulators 311, 312, 313, and the gap between the second floor panel 380 and the floor panel 398 is covered by the heat insulators 311, 313. , 313.

Since there is a step between the lower surfaces of the lower flanges of the H-beams of the steel beams 393 and 330, it is difficult to attach the heat insulating material 312 to the lower surface of the H-beams. Even so, the fact that the heights of the lower surfaces of the joint fittings 332, 333 and the heights of the lower surfaces of the joint members 342, 344 are the same makes it possible to stably attach the insulation material 312 to the H-shaped steel. Contribute to

Since the joints 331, 332, 333 are thin, the joint members 341, 342, 343 can be joined to the joints 331, 332, 333 with screws 361, 362, 363.

Since there are wooden joint members 341, 342, 344, it is easy to attach the heat insulating materials 311, 312, 313 to the H-beams of the steel beams 393, 330.

1: Joint structure 10: Wall panel (building material)
11: Wall panel body 17: Side material 30: Steel column (steel frame)
31: Steel column body (steel frame body)
32: Flange (joint fitting)
33: Second flange 34: Stiffener 40: Joint member 50: Cover 51: (concavity)
62: Screw 63: Second screw 101: Joint structure 110R: Wall panel (building material)
111R: Wall panel body 117R: Side material 130: Steel column (steel frame)
131: Steel column body (steel frame body)
132R: Flange (joint fitting)
140R: Joint member 162R: Screw,
164R: Third screw 201: Joint structure 210: Steel door (building material)
211: Door frame 212: Door body 217: Side material 230: Steel column (steel frame)
231: Steel column body (steel frame body)
232: Flange (joint fitting)
233: Second flange 240: Joint member 262: Screw 263: Second screw 312: Heat insulating material (building material)
330: Steel beam (steel frame)
332: Joint fitting 333: Joint fitting 393: Steel beam (steel frame)
362: Screw (screw)
363: Screw (screw)

Claims (11)

A joint structure between steel frames and building materials,
Equipped with wooden joint parts,
The steel frame has a steel frame body and a fitting welded to the steel frame body,
The steel frame body is a steel column body,
The fitting is a steel flange that is welded to the side surface of the steel column main body and protrudes from the side surface of the steel column main body,
The building material has a building material main body and a wooden side member joined to a side surface of the building material main body,
The side member and the joint member are overlapped in the front and back and are joined to each other,
A joint structure characterized in that the joint member is joined to the joint fitting with a screw. The joining structure according to claim 1 ,
A joint structure characterized in that the flange projects from a side surface of the steel column main body obliquely with respect to the front and rear surfaces of the steel column main body. The joining structure according to claim 2 ,
The steel frame is welded to a side surface of the steel column main body, and further includes a second flange made of steel that extends from the side surface of the steel column main body parallel to the flange,
the joint member is sandwiched between the flange and the second flange, the joint member is joined to the second flange by a second screw,
A joint structure characterized in that the joint member projects from between the flange and the second flange toward a side surface of the building material main body, and the projecting portion is joined to the side member. The joining structure according to claim 3 ,
The steel frame further includes a stiffener welded to the side surface of the steel column main body, the flange, and the second flange between the flange and the second flange, and perpendicular to the flange and the second flange. Characteristic joint structure. The joining structure according to claim 1 or 2 ,
The joining structure further comprises a cover that covers the flange and the side member and hides the head of the screw. The joining structure according to claim 5 ,
The joint structure is characterized in that the cover has a recess into which the head of the screw fits. The joining structure according to claim 1 ,
A joint structure characterized in that the joint member is sandwiched between the side member and the flange, and the side member is joined to the joint member by a third screw. The joining structure according to claim 1 or 7 ,
The building material is a wall panel, and the building material main body is a wooden wall panel main body.
A joint structure characterized by: The joining structure according to claim 1 or 7,
The building material is a wooden frame, and the building material body is a wooden frame body.
A joint structure characterized by: The joining structure according to claim 1 or 7,
the building material is a door;
The building material main body has a steel door frame and a door body attached to the door frame so that the door frame can be opened and closed,
The side member is joined to a side surface of the door frame.
A joint structure characterized by: The joining structure according to claim 10,
The steel frame further includes a second flange made of steel that is welded to a side surface of the steel column main body and extends from the side surface of the steel column main body parallel to the flange,
the joint member is sandwiched between the flange and the second flange, the joint member is joined to the second flange by a second screw,
The joint member projects from between the flange and the second flange toward the side surface of the door frame, and the projecting portion is joined to the side member.
A joint structure characterized by:

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