JP5301700B1 - Attached units and unit buildings - Google Patents

Abstract

To provide an accessory unit capable of reducing manufacturing labor and manufacturing cost and ensuring rigidity without increasing weight.
An accessory unit installed at the uppermost part of a building, which includes two pillar members 23 and two connecting members 26 arranged at the corners of a quadrangle, and a lower end portion and a connecting portion of the pillar member 23 Four lower beams 21 a, 21 b, and 22 that connect the lower end of the material 26 in the horizontal direction, an upper beam 25 that connects the upper ends of the column member 23, and an inclination that connects the column member 23 and the connection member 26. A frame structure 20 including a beam 24. The frame structure 20 includes a pair of triangular frames 200 in which a lower end beam 22, a connecting member 26, a column member 23, and an inclined beam 24 are rigidly joined. The longitudinal ends of the pair of under beams 21a and 21b are connected to the lower end of the column member 23 and the lower end of the connecting member 26 by pin joining, and the longitudinal ends of the upper beam 25 are connected to the column member. It was set as the attached unit characterized by being connected to the upper end part of 23 by pin joining.
[Selection] Figure 4

Description

  The present invention relates to an accessory unit installed at the top of a building and a unit building provided with the accessory unit.

2. Description of the Related Art Conventionally, an accessory unit connected to the upper part of a building unit is known that has a triangular elevation as viewed from the side (see, for example, Patent Document 1).
This accessory unit forms a hut backroom, a floor panel that is a ladder-like frame that forms the floor, a pair of wife panels that are framed in a right triangle shape, and an upper beam that connects the wife panels together And an inclined panel having a ceiling beam, and the beam and the column forming the skeleton are connected by a rigid joint such as welding.

Japanese Patent Laid-Open No. 10-100028

However, in the conventional accessory unit as described above, since the connecting portions of the lower beam, the column, and the upper beam are all connected by rigid joining, in order to obtain a desired joining state at each joining portion. High dimensional accuracy was required. In particular, in order to maintain a desired inclination angle and obtain a desired joining state with a column or a connecting material which is a mating partner at the joining portion of the inclined beam, in addition to high dimensional accuracy, the member is held at the time of joining. The work accuracy at the time is also required, which causes an increase in manufacturing labor and manufacturing cost.
Furthermore, when a load is applied to the attached unit, concentrated stress is generated at the rigid joint portion, and a member having a large cross-sectional area is required to increase the rigidity of the member, which increases the weight and cost.

  An object of the present invention is to solve the above-described problems, and an accessory unit capable of reducing manufacturing effort and manufacturing cost, and ensuring rigidity without increasing weight, and an accessory unit thereof It aims to provide a unit building with attached units.

In order to achieve the above object, the accessory unit of the present invention provides:
An accessory unit installed at the top of the vertical projection range of the building,
Two columns arranged at a pair of adjacent corners of a square corner and two connections arranged at a pair of other adjacent corners and formed lower than the column 4 lower beams that connect the lower end of the column member and the lower end of the connecting member in the horizontal direction, one upper beam that connects the upper end portions of the column member, the column member and the An inclined beam connecting the connecting material, and a frame structure including
The frame structure includes a pair of rigid joint frames that rigidly join the lower beam, the connecting member, the column member, and the inclined beam;
Among the lower beams, both longitudinal ends of a pair of lower beams extending in a direction orthogonal to the lower beam constituting the rigid joint frame are a lower end portion of the column member and a lower end of the coupling member. It is connected to a part by pin joining, and the longitudinal direction both ends of the upper beam are connected to the upper end part of the pillar material by pin joining.

In the attachment unit of the present invention, the connecting member is arranged such that the connecting position of the lower beam and the connecting position of the inclined beam are close to each other or in contact with each other, and the rigid joint frame is the lower member. The space surrounded by the beam, the inclined beam, and the column member is formed as a triangular frame body having a substantially right triangle shape, and has a ceiling surface that spans from the upper beam to the lower beam, The pair of elevation surfaces may be formed in a substantially triangular shape.
Alternatively, in the attachment unit according to the present invention, in the connection member, the connection position of the lower beam and the connection position of the inclined beam are spaced apart in the vertical direction, and the rigid joint frame includes the lower beam A space surrounded by the inclined beam, the pillar material, and the connecting material is formed as a trapezoidal frame body having a substantially trapezoidal shape, and includes a low upper beam for connecting the upper end portions of the connecting material by pin joining,
It may have a ceiling surface spanning from the upper beam to the lower upper beam, and a pair of side elevations may be formed in a substantially trapezoidal shape.
In the accessory unit of the present invention, it is preferable that the connecting member includes a lower beam mounting plate for pin-joining the lower beam.
Further, the accessory unit of the present invention is provided with an upper beam mounting plate rigidly connected across the column member and the inclined beam, and the upper beam is pin-connected to the upper beam mounting plate. It is preferable to do this.
In addition, the accessory unit of the present invention has a configuration in which the lower beam is formed in a U shape having three sides or a C-shaped cross-sectional shape, and a reinforcing material is provided over the three sides. preferable.

  In order to achieve the above object, the unit building of the present invention is a unit building characterized in that the above-mentioned accessory unit is connected and fixed to the upper part of the building unit.

In the present invention, the lower beam, the column, the connecting material, and the inclined beam that constitute the rigidly connected frame body are rigidly connected. However, since this is an operation for one plane, it has an inclined beam but has a plurality of planes. Compared to the three-dimensional work, the workability is excellent, and the manufacturing cost can be reduced accordingly.
In addition, when connecting a pair of rigid joint frames with a pair of lower and upper beams, the connection between these beams and the rigid joint frame is a pin joint structure, so it is possible to absorb dimensional errors at the joint. It is excellent in workability compared to connecting using a rigid joint.

In addition, in the case where the rigidly joined frame is a triangular frame, the above-described effects can be obtained in an accessory unit in which a pair of side elevations are formed in a substantially triangular shape.
In addition, in the case where the rigid joint frame is a trapezoidal frame, the above-described effects can be obtained in the accessory unit in which the pair of side elevations are formed in a substantially trapezoidal shape.
In addition, if the connecting material has a lower beam mounting plate for pin-joining the lower beam, the lower beam can be connected even if the connecting material does not have a side surface that connects the lower beam. Thus, the degree of freedom in design is improved and a strong pin connection is possible.
In addition, when the upper beam mounting plate is rigidly connected across the column and the inclined beam, and the upper beam is pin-connected to this upper beam mounting plate, the upper beam is connected to the column and the inclined beam with high rigidity. As a result, the rigidity can be ensured while the pins are joined.
In addition, in the case where a reinforcing material straddling three sides is provided on the lower beam of the U-shape or the C-shaped cross section, the rigidity of the lower beam can be ensured.

  Moreover, in the unit building in which the accessory unit of the present invention is connected and fixed to the upper part of the building unit, a unit building provided with the accessory unit having the above effects can be provided.

FIG. 1 is a perspective view schematically showing a unit building in which an accessory unit according to Embodiment 1 of the present invention is installed. FIG. 2 is a perspective view showing a frame structure which is a framework portion of a general building unit that constitutes the unit building. FIG. 3 is an exploded perspective view for explaining a surface structure of the first attached unit provided in the unit building. FIG. 4 is a partially exploded perspective view showing a frame structure that is a framework portion of the first attachment unit. 5A and 5B are diagrams showing a triangular frame body of the first accessory unit, where FIG. 5A is a side view of the triangular frame body, and FIG. 5B is a state of the triangular frame body shown in FIG. FIG. FIG. 6 is a rear view showing a state in which the frame structure of the first accessory unit is viewed from the elevation surface P13 side in FIG. FIG. 7 is a plan view showing a corner portion where the connecting member of the first accessory unit is provided, and shows a state seen from the direction of arrow Y7 in FIG. FIG. 8 is a cross-sectional view of the lower beam of the first attachment unit, showing a state cut at the position of S8-S8 line of FIG. FIG. 9 is a cross-sectional view of the column member of the first accessory unit, and shows a state cut at the position S9-S9 in FIG. FIG. 10 is a cross-sectional view of the column member of the first accessory unit, and shows a state cut at the position S10-S10 in FIG. FIG. 11 is a plan view showing a corner portion provided with the pillar material of the first accessory unit, and shows a state viewed from the direction of arrow Y11 in FIG. FIG. 12 is a plan view showing a state in which the roof base panel is attached to the skeleton member of the first accessory unit. FIG. 13 is a plan view showing a state before the roof base material is attached to the first accessory unit. FIG. 14 is an exploded perspective view for explaining the surface structure of the second attached unit provided in the unit building. FIG. 15 is a perspective view showing an outline of a frame structure that is a framework portion of the second attachment unit. FIG. 16 is a plan view showing a frame structure that is a framework portion of the second attachment unit. FIG. 17 is a plan view showing a state in which the roof base panel is attached to the frame structure of the second accessory unit. FIG. 18 is a front view of the frame structure of the second accessory unit as viewed from the elevation surface P23 side. FIG. 19 is a rear view of the frame structure of the second accessory unit as viewed from the elevation surface P22 side. FIG. 20 is a cross-sectional view of the column member of the second accessory unit and shows a state cut at the position of line S20-S20 in FIG. FIG. 21 is an enlarged view of a main part of the second accessory unit, and shows a part surrounded by a circle K21 in FIG. FIG. 22 is a cross-sectional view showing a state in which the lower upper beam of the second accessory unit is cut, and shows a state cut at the position of line S22-S22 in FIG. FIG. 23 is a cross-sectional view showing a state in which the high beam of the second attached unit is cut, and shows a state cut at the position of line S23-S23 in FIG. FIG. 24 is a cross-sectional view showing a state in which the roof base panel and the ceiling panel are attached to the second accessory unit, and shows a state cut at the position S24-S24 in FIG. FIG. 25 is a perspective view showing a unit building according to a modification of the first embodiment. FIG. 26 is a perspective view showing a unit building according to another modification of the first embodiment. FIG. 27 is a perspective view schematically showing another embodiment of the accessory unit.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
(Embodiment 1)
Hereinafter, an embodiment of an accessory unit according to the present invention will be described in detail with reference to the drawings.
FIG. 1 is a schematic diagram illustrating an outline of a unit building H including an accessory unit according to the present embodiment. The unit building H includes a plurality of (12 in the present embodiment) general building units A and The first accessory unit B1 and the second accessory unit B2 connected and fixed to the upper part of the building unit A are provided. The attached unit to which the present invention is applied is the second attached unit B2.

This unit building H is constructed by connecting a plurality of building units A and both accessory units B1 and B2 manufactured in the factory on site.
Here, first, the structure of the building unit A will be briefly described. As shown in FIG. 2, the building unit A is a frame of a box ramen structure formed by joining steel structural members into a rectangular parallelepiped shape by welding. A structure 10 is provided.
This frame structure 10 is composed of four rectangular columnar pillars 11, 11, ..., and lower beams (floor beams) 12, 12 that connect the lower ends of the pillars 11 in the horizontal direction, The lower beams (floor beams) 13 and 13 in the short side direction, the upper beams (ceiling beams) 14 and 14 connecting the upper ends of the four column members 11, 11,. A rectangular parallelepiped is formed from the upper beams (ceiling beams) 15 and 15 in the side direction. In the building unit A, floor joists 16, 16... Are laid in parallel between the lower beams 12 and 12 at a predetermined interval, and ceiling joists 17, 17. Has been. Each column member 11 and each beam 12, 13, 14, 15 are welded through reinforcement plates 18, 18... At the corners, and the rigidity of the building unit A is enhanced.
In the description of the embodiment, the long side direction of the frame structure 10 in the installed state of the unit building H shown in FIG. 1 will be described as the X direction, the short side direction as the Y direction, and the height direction as the Z direction.

Both the accessory units B1 and B2 are installed on the rooftop portion of the unit building H formed by joining the building unit A described above, and are used as an entrance to a roof balcony or the like, a shed back storage, an atrium, or a top light.
As shown in FIG. 1, the first attached unit B <b> 1 is a triangular unit when viewed from the side, and is installed on one building unit A so as to be entirely overlapped.
The second attachment unit B2 is a trapezoidal unit as viewed from the side, and is installed on the building unit A so as to be entirely overlapped as in the case of the first attachment unit B1. In addition, the second attachment unit B2 has a lowest later-described elevation surface P23 (see FIG. 14) having the same dimensions as the highest elevation surface P13 (see FIG. 3) of the first attachment unit B1, and both units B1. , B2, which will be described later, continuously form ceiling surfaces P14, P26 to form a triangular rooftop structure with both accessory units B1, B2.

Hereinafter, each of the attached units B1 and B2 will be described in detail. First, the first attached unit B1 will be described.
As shown in FIG. 3, the first accessory unit B1 includes a rectangular bottom surface P11, triangular upright surfaces P12, P12 and a rectangular upright surface P13 raised from the bottom surface P11, and the upright surfaces P12, P13. When viewed from the side having the ceiling surface P14 straddling between the upper end of the bottom surface and one side of the bottom surface P11, it is formed in a triangular three-dimensional shape. In addition, the rectangular bottom surface P11 is formed to have the same dimensions as the rectangular shape of the upper surface of the building unit A. In addition, each of these surfaces P11-14 represents the outer peripheral surface formed of the frame structure 20 mentioned later, and may not actually exist as a surface. That is, the vertical surface P12 and the ceiling surface P14 that are the outer surfaces of the first accessory unit B1 are covered with an outer wall panel or a roofing material, but the other bottom surface P11 and the vertical surface P13 are installed in the vertical direction or It may be partitioned from the indoor space adjacent in the horizontal direction, or, in practice, the panel may not be installed, and a space continuous with the indoor space adjacent in the vertical direction or the horizontal direction may be formed.

The first accessory unit B1 includes a frame structure 20 formed in a frame shape from a U-shaped steel or C-shaped steel.
As shown in FIG. 4, the frame structure 20 includes four under beams 21a and 21b and end under beams 22 and 22 which are connected to form a square, and both ends of the under beam 21a. The two pillar members 23 and 23 raised from a pair of corners of the beam and the lower beam 22 and the pair of corners of the both ends of the beam 21b and the lower beam 22 are provided. The connecting member 26, two inclined beams 24, 24 connecting the connecting member 26 and the upper end of the column member 23, and one upper beam connecting the upper ends of the two column members 23, 23. 25. Further, the lower end beam 22, the column member 23, the inclined beam 24, and the connecting member 26 that form the above-described triangular elevation surface P12 are connected by rigid joining to form a triangular frame 200 as a rigid joining frame. . Further, the triangular frames 200 are connected to the pair of under beam 21a, 21b and the upper beam 25 by being pin-connected.

Hereinafter, this structure will be described in detail.
First, the triangular frame 200 will be described. Both ends of the lower end beam 22 are connected to the column member 23 and the connecting member 26 shown in FIG.

Here, as shown in FIG. 7, the connecting member 26 has one side surface facing the central direction of the first accessory unit B1 in the X direction among the four side surfaces of the square tube, in the horizontal direction. The width is formed in a cross-sectional shape that is half the size of the other side surface, and this side surface is a lower beam mounting plate 26f for joining the under beam 21b. As shown in FIG. 5, a pair of upper and lower bolt holes 26c are opened in the lower beam mounting plate 26f.
In addition, as shown in FIG. 7, the connecting member 26 has a width dimension in the Y direction slightly larger than the width direction in the same direction of the inclined beam 24, and is about twice the width direction in the same direction in the lower beam 22. As shown in FIGS. 5 and 8, the dimension in the height direction is substantially the same as the height dimension in which the lower end beam 22 and the inclined beam 24 are vertically stacked. The upper and lower end surfaces of the connecting member 26 are closed by welding end plates 26a, 26a made of steel plates to the upper and lower ends. In addition, although illustration is abbreviate | omitted in the lower end plate 26a, the bolt hole for a coupling | bonding with the building unit A is opened.

  The lower end beam 22 is formed of a U-shaped steel or C-shaped steel as described above, and the U-shaped or C-shaped opening is installed in the Y direction toward the center of the first accessory unit B1. Further, the width dimension in the Y direction is formed to be about ½ of the width dimension in the same direction of the connecting material 26. In addition, as shown in FIG. 5A, reinforcing plates 22 s and 22 s extend in the longitudinal direction of the cross section across the three sides that form the lower end beam 22 in the middle portion of the lower end beam 22. Welded. The lower end beam 22 is connected to the connecting member 26 by a rigid joint welded in a state where one end thereof is in contact with the side surface of the connecting member 26, and the other end is shown in FIGS. The column member 23 is connected to the column member 23 by a rigid joint that is welded while being in contact with the lower end side surface of the column member 23.

Further, as shown in FIG. 9, the column member 23 connected to the other end of the lower end beam 22 by a rigid joint is formed so that the width dimension in the X direction is approximately the same as the width direction in the same direction of the inclined beam 24. In addition, the U-shaped or C-shaped opening is erected in the X direction toward the center of the first accessory unit B1.
And as shown in FIG. 10, the upper end part of the pillar material 23 is formed in the shape inclined in the Y direction (inclination of the direction which goes down toward the connection material 26).
Further, a steel plate upper beam mounting plate 27 is connected to the side surface of the column member 23 on the side where the height is increased by rigid joining by welding. As shown in FIG. 6, the upper beam mounting plate 27 is formed in a trapezoidal plate shape with one rectangular corner portion cut out, and protrudes by the height of the inclined beam 24 above the upper end of the column member 23. It arrange | positions and it protrudes and arrange | positions in the center direction of 1st attachment unit B1 to the side (X direction) of the pillar material 23. As shown in FIG. The upper beam mounting plate 27 has four bolt holes 27a.
On the other hand, the lower end of the column member 23 is welded to the end plate 23a shown in FIG. 10 so that the opening downward is closed, and crosses the cross section of the column member 23 above the end plate 23a. It arrange | positions and the reinforcement board 23b is welded. Further, the mounting plate 23c (see FIGS. 5 and 9) is welded across the end plate 23a and the reinforcing plate 23b in the X direction.

As shown in FIG. 4 or FIG. 5B, the inclined beam 24 is formed of a U-shaped steel or C-shaped steel having a long upper side and a short lower side, and is arranged at one end located on the left side in FIG. The tip is welded to the side surface of the connecting member 26, and the lower surface of the other end on the right side is welded to the upper end of the column member 23 and the upper beam mounting plate 27, and is connected to the connecting member 26 and the column member 23 by rigid joining. Yes.
As described above, the triangular frame 200 is formed in a triangular frame shape by rigidly joining the lower wife beam 22, the column member 23, the inclined beam 24, and the connecting member 26.

  The frame structure 20 of the first accessory unit B1 is configured by connecting the pair of triangular frames 200 configured as described above by the under beam 21a, 21b and the upper beam 25 shown in FIG. The connection between the under beams 21a and 21b and the upper beam 25 and the triangular frame body 200 is a connection by pin connection, and this pin connection will be described below.

First, pin joining of the under beam 21a will be described.
The under beam 21 a is formed of a U-shaped steel or C-shaped steel as described above, and the width in the Y direction is the same as the width of the column member 23 as shown in FIGS. 9 and 10. It is formed to have a size of about ½, and the U-shaped (C-type) opening is installed in the Y direction toward the center of the first accessory unit B1.
And the connection board 21s is welded to the longitudinal direction both ends of the under beam 21a so that the opening part which faced the longitudinal direction may be plugged up. The connecting plate 21s has a pair of upper and lower bolt holes (not shown). Then, the bolt 31b is inserted into the bolt hole provided in the mounting plate 23c of the column member 23 and the bolt hole provided in the connecting plate 21s, and the nut 31n welded to the connecting plate 21s or the connecting plate 21s. Fastening to (see FIG. 9), the under beam 21 a is pin-joined to the lower end of the column member 23.
The under beam 21b is formed of a U-shaped steel or a C-shaped steel as shown in FIG. 8, and the width in the Y direction is about ½ of the width of the connecting member 26 in the same direction. In addition, the U-shaped (C-shaped) opening is installed in the Y direction toward the center of the first accessory unit B1.
Then, a substantially rectangular plate-like connecting plate 21t is welded to both ends of the under beam 21b in the longitudinal direction so as to close the opening portions facing the longitudinal direction. A pair of upper and lower bolt holes (not shown) are opened in the connecting plate 21t. As shown in FIGS. 7 and 8, the under beam 21b is inserted into a bolt hole provided in the side surface of the connecting member 26 and a bolt hole provided in the connecting plate 21t, and the connecting plate 21t and The under beam 21b is pin-bonded to the connecting member 26 by being fastened to a nut 32n welded to a separate or connecting plate 21t. The under beams 21a and 21b are also provided with reinforcing plates that are welded so as to straddle three sides in the middle portion in the longitudinal direction, as in the case of the lower beam 22 although illustration is omitted.

The upper beam 25 is formed of a U-shaped steel or a C-shaped steel as described above, and the width dimension in the Y direction is ½ of the width dimension in the same direction of the column member 23 as shown in FIG. Further, like the under beam 21a, the U-shaped or C-shaped opening is disposed toward the center of the first accessory unit B1.
Then, as shown in FIG. 4, bolt holes 25 a are opened at four positions on the both ends in the longitudinal direction of the upper beam 25 at positions overlapping with the bolt holes 27 a of the upper beam mounting plate 27 in the Y direction at the time of joining, As shown in FIGS. 10 and 11, the bolt 33b is inserted into the bolt holes 27a and 25a of the upper beam mounting plate 27 and the upper beam 25 (not shown in FIGS. 10 and 11). The nut 33n welded to the upper beam 25 is fastened and pin-joined.

  As described above, the frame structure 20 of the first attached unit B1 is formed by connecting the pair of triangular frames 200 by the under beam 21a, 21b and the upper beam 25.

A panel-shaped roof base material 34 shown in FIG. 12 is attached to the ceiling surface P14 of the frame structure 20.
The mounting structure of the roof base material 34 will be briefly described.
As shown in FIG. 13, support brackets 35 are attached to three locations of the upper beam 25, and support brackets 36 are attached to three locations of the under beam 21b. The roof base material 34 is supported by the support bracket 35 and the support bracket 36 and is fixed to the frame structure 20 by being fixed with bolts, pins, or the like. After installation in the unit building H, the roof base material 34 is covered with a roof panel (not shown).

  The first accessory unit B1 configured as described above is configured such that the bolts inserted into the end plates 26a and 23a attached to the lower ends of the connecting member 26 and the column member 23 are further connected to the column member 11 of the building unit A. The end plate 11a (see FIG. 2) at the upper end is inserted into a nut (not shown) and fastened to the building unit A.

Next, as shown in FIG. 1, a description will be given of the second attached unit B <b> 2 that is continuous with the elevation surface P <b> 13 of the first attached unit B <b> 1 and that is connected and fixed to the upper part of the building unit A at the roof portion of the unit building H.
The second attached unit B2 is a unit having a trapezoidal side surface, and as shown in FIG. 14, a rectangular bottom surface P21 having the same size as the top surface of the building unit A, and a rectangular upright raised from the bottom surface P21. Surfaces P22 and P23, two trapezoidal vertical surfaces P24 and P25, and an inclined rectangular ceiling surface P26 are provided. Each of the surfaces P21 to P26 represents an outer peripheral surface formed by a frame structure 40 described later, and may not actually exist as a surface. That is, the vertical surfaces P22, P24, P25 and the ceiling surface P26 that are the outer surfaces of the second accessory unit B2 are covered with the outer wall panel and the roof material, but the other bottom surface P21 and the vertical surface P23 are installed with panels. It may be partitioned from the indoor space adjacent in the vertical direction or the horizontal direction, or in practice, the panel is not installed and a space continuous with the indoor space adjacent in the vertical direction or the horizontal direction is formed. Also good.

  As shown in FIG. 15, the frame structure 40 that forms the skeleton of the second attachment unit B <b> 2 includes four column members, short column members 41 and 41 and long column members 42 and 42, and four column members. The four under beams 43a and 43a and the bottom beams 43b and 43b as the four lower beams that connect the lower ends of the columns in the horizontal direction and the four upper beams of the column members 41, 41, 42, and 42 are connected. A high upper beam 44, a low upper beam 45, and inclined upper beams 46, 46, which are upper beams, are provided.

Further, in the present embodiment, the frame structure 40 has a pair of middle pillars 47 and 47 erected between the high beam 44 and the under beam 43a at the position of the elevation surface P22, A diagonal material 47 b is provided between the middle column 47 and the long column material 42.
In the frame structure 40, a pair of middle columns 48, 48 are erected between the lower upper beam 45 and the under beam 43a at the position of the elevation surface P23, and each middle column 48 and the shorter column are provided. A pair of diagonal members 48b are provided in an X shape between the members 41.

Next, the structure and connection structure of the frame structure 40 of the second attachment unit B2 will be described.
The frame structure 40 of the second accessory unit B2 includes four lower beams 43a, 43a, 43b, and 43b that constitute the bottom surface P21 and the column members 41 and 42 that are connected by rigid joints. The beams 44, 45, 46, and 46 are connected to the column members 41, 41, 42, and 42 by pin bonding.

Details will be described below.
The short column member 41 and the long column member 42 are formed of a square tube-shaped steel plate having a substantially square cross section as shown in FIG. 16, and upper and lower end portions thereof are formed of a steel plate shown in FIG. 21 and FIG. The end plates 41h and 42h are fixed and closed. The end plates 41h and 42h at the lower ends of the column members 41 and 42 have through holes for inserting bolts and connecting to the building unit A by pin joining, although not shown.

At the lower ends of the short column member 41 and the long column member 42, four under beams 43a and under beam 43b are connected by rigid connection.
As shown in FIG. 15, the under beam 43 a connects the lower end portions of the short column members 41 and 41 and the lower end portions of the long column members 42 and 42 in the X direction. As shown in FIG. 20, the under beam 43a is installed with a U-shaped or C-shaped opening in the Y direction toward the center of the second accessory unit B2, and the width in the Y direction is The column members 41 and 42 are formed to have a size that is approximately ½ of the width in the same direction.
The connection between the under beam 43a and both column members 41 and 42 is a rigid joint by welding, and as shown in FIGS. 18 and 19, a cross section is provided at the lower end of the short column member 41 and the long column member 42. The U-shaped joint pieces 41a and 42a are welded so as to overlap each other in the X direction, and the joint pieces 41a and 42a are welded with the longitudinal ends of the under beam 43a being inserted inside the joint pieces 41a and 42a.

  On the other hand, the lower end portion of the short column member 41 and the lower end portion of the long column member 42 are connected in the Y direction by a lower end beam 43b as shown in FIG. As shown in FIG. 20, the joint between the both ends in the longitudinal direction of the lower beam 43b and the column members 41, 42 is also a U-shaped cross-sectional shape joined to the lower ends of the column members 41, 42 by welding. The joint pieces 41b and 42b are welded in a state where the end portions in the longitudinal direction of the lower end beam 43b are inserted.

Next, a description will be given of pin bonding, which is a bonding between the column members 41 and 42 and the four upper beams 44, 45, and 46.
At the longitudinal ends of the upper beams 44, 45, 46, the mounting plates 44 a, 45 a, shown in FIGS. 46a is fixed. Each of the mounting plates 44a, 45a, 46a is a rectangular steel plate, and has bolt holes (not shown) for coupling on the top and bottom.

The mounting plates 44a, 45a, 46a are pin-joined by fastening bolts and nuts to the side surfaces of the column members 41, 42.
That is, as shown in FIGS. 21 and 22, the bolt 45 b is inserted into the bolt hole of the mounting plate 45 a of the low upper beam 45 and the bolt hole provided on the side surface of the short column member 41, and the nut on the short column member 41 side is inserted. By fastening to 45 n, both ends in the longitudinal direction of the low upper beam 45 are pin-bonded to the short column members 41, 41. As shown in FIG. 22, the upper end surface of the low upper beam 45 is disposed at a position slightly lower than the upper end of the short column member 41. Due to this height difference, when the roof base panel 49 (see FIG. 17) is installed on the upper surface of the second accessory unit B2, a ventilation gap is formed between the low upper beam 45 and the roof base panel 49. .

  Further, although the detailed illustration of the high upper beam 44 is omitted, a bolt 44b inserted into the mounting plate 44a shown in FIG. 42 is inserted through the side surface of the upper end portion and fastened to a nut (not shown) on the long column member 42 side to be pin-joined.

  The same applies to the connection between the inclined upper beam 46 and both column members 41, 42. The attachment plates 46a, 46a and the respective column members 41, 42 fixed to both ends in the longitudinal direction of the inclined upper beam 46 are shown in FIG. As shown in FIG. 23, bolts 46b, 46b are inserted and fastened to nuts 41n, 42n on the column members 41, 42 side to be pin-joined.

  The roof base panel 49 described above is provided between the plurality of support brackets 44f and 45f attached to the high upper beam 44 and the low upper beam 45 shown in FIGS. 16 and 17, similarly to the first accessory unit B1. It is bridged and fixed. After installation in the unit building H, the roof base material 49 is covered with a roof panel (not shown).

The unit building H, the first attached unit B1, and the second attached unit B2 configured as described above have the effects listed below.
a) The unit building H has the first accessory unit B1 and the second accessory unit B2 connected to the roof portion, so that the appearance of the unit building H can be changed, and the unit building has a thick and uneven appearance. H can be formed, and it can be effectively used as an entrance to a roof balcony or the like, storage in a shed, an atrium or a top light.

  b) Since the first accessory unit B1 and the second accessory unit B2 have a triangular shape and a trapezoidal shape in which the ceiling surfaces P14 and P26 are continuous, the first accessory unit B1 and the second accessory unit B2 are used as a roof structure or a roofing material by combining both the units B1 and B2. Can increase design variations.

c) The first attachment unit B1 includes a triangular frame 200, 200 as a pair of rigid joint frames in which the frame structure 20 is rigidly joined to the lower beam 22, the connecting member 26, the column member 23, and the inclined beam 24. The upper and lower ends of the column member 23 of the pair of triangular frames 200 and 200 and the connecting member 26 are connected to the longitudinal ends of the under beams 21a and 21b and the longitudinal ends of the upper beam 25 by pin joining. A connected configuration was adopted.
For this reason, at the time of manufacturing the frame structure 20, only the triangular frame 200 that forms one plane which is the upright surface P12 needs to be connected by rigid joining. Although this triangular frame 200 has the inclined beam 24, the work can be performed on one plane, and the work is simpler than the work when the frame structure is rigidly joined in three dimensions. Therefore, the workability is excellent and the manufacturing cost can be reduced accordingly.
Further, when the pair of triangular frames 200 are connected by the pair of both lower beams 21a and 21b and the upper beam 25, it is a three-dimensional operation. However, the connection between the beams 21a, 21b and 22 and the triangular frame 200 is not limited. Since the joining is performed by pin joining, it is easy to absorb dimensional errors, and the workability is excellent compared to the case of rigid joining.
In addition, the first accessory unit B1 has a connecting part by the above-described pin joint in the horizontal direction, and suppresses stress concentration on the rigid joint part when assembled to the building unit A, thereby reducing weight and ensuring rigidity. Can be achieved.
As described above, it is possible to provide the first attachment unit B1 that can ensure high coupling rigidity, is excellent in manufacturability, and is suitable for installation on the top floor.

d) When joining the first accessory unit B1 and the building unit A below the first accessory unit B1, the end plates 23a and 26a of the column member 23 and the connecting member 26 constituting the triangular frame 200 are joined to the building unit A. I made it.
As described above, since the structural parts of the triangular frame body 200 that are disposed at both ends in the X direction of the frame structure body 20 and are rigidly joined in the frame structure body 20 are joined to the building unit A below them, these triangular frames The body 200 is firmly fixed to the building unit A, and the rigidity of the first attached unit B1 can be ensured.

  e) The connecting member 26 of the first attachment unit B1 is provided so as to form a part of one side surface of the rectangular tube, and is attached to the connecting plate 21t at the end of the under beam 21b and is pin-joined with the lower beam. Since the plate 26f is provided, the connection of the under beam 21b is easy, and the connection can be reliably performed.

f) When the upper beam 25 and the column member 23 are pin-bonded, the first attachment unit B1 is bonded to the upper beam mounting plate 27 that is rigidly bonded to both the column member 23 and the inclined beam 24. I made it.
Therefore, compared with the case where the upper beam mounting plate 27 is rigidly bonded to only one of the column member 23 and the inclined beam 24, the bonding strength of the upper beam 25 can be ensured.

  g) The U-shaped lower beam 22 having the U-shaped or C-shaped cross section of the first attachment unit B1 includes the reinforcing material 22s extending over the three sides, so that the rigidity of the lower lower beam 22 can be improved. Since the under beams 21a and 21b are also provided with the same reinforcing plate, the rigidity can be improved.

  h) When the first attachment unit B1 rigidly joins the inclined beam 24 to the column member 23 and the connecting member 26, the inclined beam 24 abuts the lower end surface thereof on the side surface of the connecting member 26, and the upper end side is It was made to join to the upper surface of the pillar material 23. For this reason, the dimensional accuracy management of the end surface for increasing the bonding accuracy can be distributed to the lower end surface of the inclined beam 24 and the upper end surface of the column member 23. Therefore, compared with the case where the upper end side of the inclined beam 24 is also joined to the side surface of the column member, the end face accuracy can be dispersed and the yield can be improved.

  j) Since each lower beam 43a, 43b and each column member 41, 41, 42, 42 are rigidly joined to the second attached unit B2, the lower beam unit 43a, Even if it carries out by any of 43b and each pillar material 41 and 42, connection rigidity with building unit A is securable.

Further, when the frame structure 40 is manufactured, the lower beams 43a and 43b and the column members 41 and 42 may be joined while maintaining the shape of the bottom surface P21. Compared to the case where the members are rigidly joined to each other, the shape can be easily maintained, and the dimensional accuracy needs only to ensure a flat dimensional accuracy. It is possible to suppress.
On the other hand, since the joint between the upper ends of the column members 41 and 42 and the upper beams 44, 45, and 46 is a pin joint, dimensional errors can be absorbed by the joint portion, and all the joint portions are rigidly joined. In comparison, the dimensional accuracy can be kept low, and in addition, the workability is excellent as compared with the case of rigid joining.
In particular, in the structure having the inclined upper beam 46 as a part of the upper beam as in the first embodiment, when this is rigidly bonded, a high dimensional accuracy is obtained in order to obtain a bonding surface at a certain angle during welding work. In addition to this, it is necessary to maintain a constant inclination angle, which increases the labor and cost. Compared with this, in this Embodiment 1, since these joining was made into pin joining, work effort and work cost can be reduced.
As described above, in the first embodiment, each of the lower beams 43a and 43b and each of the column members 41 and 42 are rigidly joined to ensure high coupling rigidity, but each of the upper beams 44, 45, and 46 can be secured. By making each pillar material 41, 42 into a pin joint, it is possible to provide the second attached unit B2 that can keep the manufacturing workability, the manufacturing cost, and the weight low, and the unit building H provided with the second attached unit B2.
Furthermore, since the second attachment unit B2 uses a pin connection for the connection between the upper end portions of the column members 41 and 42 and the upper beams 44, 45, and 46, the stress concentration during the horizontal load input can be reduced. Can do.

k) The second attachment unit B2 includes a short column member 41 and a long column member 42, and has a structure including an inclined upper beam 46 as an upper beam. The inclined upper beam 46 has a structure in which the mounting plates 46a and 46a provided at both ends in the longitudinal direction thereof are brought into contact with the side surfaces of the column members 41 and 42, respectively. Since each of the column members 41 and 42 is pin-joined, it is possible to absorb dimensional errors, and it is possible to keep the dimensional accuracy low as compared with the case of rigid joining, and excellent workability. .
As described above, it is possible to provide the second attachment unit B2 that can ensure high coupling rigidity, is excellent in manufacturability, and is suitable for installation on the top floor.

  m) In the unit building H in which the second attached unit B2 is installed, the pin attachment is compared to the case where all the attachments of the second attachment unit are rigidly connected to the stress acting when the horizontal load is applied. It becomes possible to disperse by part, and accordingly, the rigidity of the member can be suppressed and the weight and cost can be suppressed.

(Other embodiments)
Other embodiments will be described below.
A unit building H2 shown in FIG. 25 is a modification of the first embodiment, and shows a mode in which the second attached unit is not installed in the first embodiment.

A unit building H3 shown in FIG. 26 is an example in which an attachment unit B3 obtained by deforming the first attachment unit is installed on the roof. This accessory unit B3 is an example in which column members 23 and 23 are installed at both ends in the longitudinal direction of the wife lower beam 22 shown in the first embodiment, and the ceiling surface P314 is inclined so as to descend to the wife side of the building unit Ab. is there.
In addition, the roof of the unit building H3 can be formed by installing the attached unit B3 on the upper part of all the building units A.

  As mentioned above, although embodiment of this invention was explained in full detail based on drawing, this invention is not limited to the said embodiment, In the range which does not deviate from the matter described in the claim, it is various. Design changes can be made.

For example, in the embodiment, an example in which the trapezoidal second accessory unit is installed on the upper part of the building unit in addition to the first accessory unit as the accessory unit of the invention is shown. However, the height of the installation is limited to this. Instead, for example, it may be arranged in the horizontal direction of the building unit on the same floor and installed on the upper part of the unit building on the lower floor.
In addition, the building to be installed is not limited to a unit building configured by connecting building units.

  Further, in the embodiment, the example of the joining by the bolt and the nut is shown as the pin joining. However, the present invention is not limited to this, and the joining can be performed by using a pin or a rivet. Further, the number of installed bolts and nuts is not limited to the number shown in the embodiment, and the joining rigidity can be increased by increasing the number of installed.

Moreover, although the upper beam which connects the upper end parts of column material by pin joining was made into the structure joined to the upper beam attachment board rigidly joined to the column material and the inclination beam, it is not limited to this. For example, in the structure in which the inclined beam is rigidly joined to the side surface of the column material, the upper beam mounting plate may be rigidly joined only to the column material, or the upper end of the column material may be used without using the upper beam mounting plate. You may make it pin-join directly to the side surface. Further, as shown in the embodiment, in the structure in which the inclined beam is rigidly connected to the upper part of the column member, the upper beam may be pin-connected to the inclined beam and indirectly connected to the column member. .
In the embodiment, the U-shaped steel or the C-shaped steel is shown as the lower beam and the upper beam constituting the frame structure. However, other shapes of steel such as H-shaped steel may be used. Good.

  In the embodiment, an example in which the present invention is applied to an accessory unit having a shape having a triangular elevation is shown. However, the connecting member extends in the vertical direction, and the inclined beam and the lower beam are separated in the vertical direction. And may be coupled to the connecting material.

FIG. 27 schematically shows such an embodiment.
That is, the frame structure 420 that constitutes the skeleton of the accessory unit includes a pair of rigidly joined trapezoidal frames 400 and 400 that are connected to the lower beam 421a, the lower beam 421b, the upper beam 425, and the lower upper beam 401. This is an example in which both ends are joined by pin joining. In the figure, black triangles indicate rigid joints, and white circles indicate pin joints.

  The trapezoidal frame 400 includes a cylindrical or U-shaped connecting member 426 and a lower end of a column member 423 similar to the column member 23, and the longitudinal length of the wife lower beam 422 similar to the wife lower beam 22. Both ends in the direction are connected by rigid joining, and the upper end portion of the connecting member 426 and the upper end portion of the column member 423 are connected by rigidly joining both end portions of the inclined beam 424 similar to the inclined beam 24. ing. Further, the ceiling surface of the accessory unit is bridged between the upper beam 425 and the under beam 421b.

  It is assumed that the pin joint structure at both ends of the under beam 421a, the under beam 421b, the upper beam 425, and the lower upper beam 401 is the same as that of the first embodiment.

Even in the accessory unit B3 configured as described above, the trapezoidal frame body 400 constituting the trapezoidal vertical surface has a structure in which the inclined beam 424 is rigidly joined. The work can be performed and the workability is excellent. Further, since the three-dimensional bonding is performed by pin bonding, the workability is excellent.
Therefore, even in the accessory unit B3, the effects a) to h) are achieved as in the first embodiment.
Note that the accessory unit B2 shown in FIG. 27 may be used as the second accessory unit shown in the first embodiment.

20 Frame structure 21a Girder beam 21b Girder beam 21s Connection plate 21t Connection plate 22 Tail lower beam 22s Reinforcement plate 23 Column member 23a End plate 23b Reinforcement plate 23c Mounting plate 24 Inclined beam 25 Upper beam 26 Connection member 26a End Plate 26f Lower beam mounting plate 27 Upper beam mounting plate 200 Triangular frame A Building unit B1 First accessory unit H Unit building P11 Bottom surface P12 Elevation surface P13 Elevation surface P14 Ceiling surface

Claims (6)

An accessory unit installed at the top of the vertical projection range of the building,
Two columns arranged at a pair of adjacent corners of a square corner and two connections arranged at a pair of other adjacent corners and formed lower than the column 4 lower beams that connect the lower end of the column member and the lower end of the connecting member in the horizontal direction, one upper beam that connects the upper end portions of the column member, the column member and the An inclined beam connecting the connecting material, and a frame structure including
The frame structure includes a pair of rigid joint frames that rigidly join the lower beam, the connecting member, the column member, and the inclined beam;
Among the lower beams, both longitudinal ends of a pair of lower beams extending in a direction orthogonal to the lower beam constituting the rigid joint frame are a lower end portion of the column member and a lower end of the coupling member. And both ends in the longitudinal direction of the upper beam are connected to the upper end of the column member by pin bonding ,
An upper beam mounting plate rigidly joined across the column member and the inclined beam is provided,
The upper beam is pin-attached to the upper beam mounting plate . The connecting member is arranged such that the connecting position of the lower beam and the connecting position of the inclined beam are close to or in contact with each other up and down, and the rigid joint frame includes the lower beam, the inclined beam, and the column member. The space surrounded by is formed as a triangular frame that forms a substantially right triangle,
The accessory unit according to claim 1, further comprising a ceiling surface extending from the upper beam to the lower beam, and a pair of side elevations formed in a substantially triangular shape. In the connecting member, the connecting position of the lower beam and the connecting position of the inclined beam are arranged apart from each other in the vertical direction, and the rigid joint frame includes the lower beam, the inclined beam, the column member, The space surrounded by the connecting material is formed as a trapezoidal frame having a substantially trapezoidal shape,
Comprising a low upper beam for connecting the upper ends of the connecting members by pin joining;
The accessory unit according to claim 1, further comprising: a ceiling surface extending from the upper beam to the lower upper beam, wherein a pair of side surfaces are formed in a substantially trapezoidal shape.   The attachment unit according to any one of claims 1 to 3, wherein the connecting member includes a lower beam mounting plate for pin-joining the lower beam. The lower beam is formed in a U-shape having three sides or a C-shaped cross-sectional shape, and a reinforcing material straddling the three sides is provided. The accessory unit described in the section. A unit building, wherein the accessory unit according to claim 1 is connected and fixed to an upper part of the building unit.