JP2888736B2 - Roof structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roof structure,
In particular, the present invention relates to a roof structure suitable for application to a unit building.

[0002]

2. Description of the Related Art In recent years, unit buildings have been widely used as one method of increasing the industrial production rate of buildings. The unit building is a building of a type in which one building is divided into several units in advance for factory production, and these are constructed and assembled at a building site. The units that make up the unit building include a building unit that makes up each room part, such as a living room, a dining room, and a bedroom, and a roof unit that makes up the roof part of the building. These units are produced at a factory in advance as a predetermined size capable of being transported, and then transported to a construction site for construction and assembly. Assembly is performed by first installing the building units on a foundation and interconnecting them, then installing a roof unit on top of each installed building unit and interconnecting these roof units. By the way, as shown in FIG. 6, a conventional roof unit includes,
A support structure such as a triangular or pentagonal truss beam 3, 4 or the like is three-dimensionally assembled (see JP-A-62-6041, JP-A-2-178452, etc.).

[0003]

However, the roof unit is not of a box-shaped structure like a building unit, but is of an inclined structure as shown in FIG.
It is not suitable for stacking, and therefore, when stacking and transporting roof units, there has been a problem that transport safety cannot be ensured. On the other hand, if importance was placed on transport safety, mass transport by stacking would not be possible, leading to a reduction in transport efficiency. In addition, the conventional roof unit including the roof panel and the support structure that supports the roof panel has a problem in that it is not possible to reduce the volume of material directly connected to cost reduction.

[0004] The present invention has been made in view of the above-mentioned circumstances, and provides a roof structure capable of simultaneously improving transportation safety and transportation efficiency, reducing the volume of material, and reducing the cost. It is intended to provide.

[0005]

According to a first aspect of the present invention, there is provided a roof structure for forming a ridge roof, comprising a plurality of divided roof surfaces. A roof panel, wherein each roof panel and an adjacent roof panel are joined in a manner supporting each other , and each roof panel is
The roof frame is composed of one horizontal beam and two oblique beams.
And at least a field board on the upper surface of the roof framework.
The horizontal beam is attached to the roof
Is mounted on the corresponding ceiling beam of the building body,
The oblique beam is characterized by being joined to the opposing oblique beam of the adjacent roof panel .

[0006]

[0007]

According to the structure of the first aspect, a single roof panel is assigned to each side of the ridge roof, and the adjacently arranged roof panels are connected to each other in a mutually supporting manner. ing. Therefore, the roof structure can be completed with only the roof panel. Similarly, because of the ridge shape, the roof shape can be completed only with the roof panel. For this reason, a support structure such as a girder truss beam, a girder truss beam, a purlin, or the like becomes unnecessary, and accordingly, the material volume can be reduced and the cost can be reduced. In addition, since the roof panel is flat, a number of roof panels can be loaded on one transportation vehicle, and it is safe to stack many roof panels. Therefore, transportation safety and transportation efficiency can be improved. Also, if the roof frame is 1
The truss consists of two horizontal beams and two diagonal beams.
So you get a more robust roof structure
It becomes possible.

[0008]

The roof structure according to the first aspect of the present invention is not limited to a quadrangular roof having a stepping down ridge concentrated at one point, that is, a quadrangular pyramid roof, but is widely applied to a roof of various shapes. obtain.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an external configuration of a unit building to which a roof structure according to an embodiment of the present invention is applied, and FIG. 2 is a plan view of the unit building, that is, an embodiment of the present invention. A plan view showing the appearance of the roof structure,
3 is a plan view showing a schematic shape of each roof panel applied to the roof structure, FIG. 4 is a perspective view showing a frame of the roof panel, and FIG. 5 is a joint of the roof structure. FIG. First, as shown in FIG. 1, the unit building relates to a steel-frame two-story small house. As shown in FIG. 1, lower-level building units 6 and 6 are installed on a foundation 5 and interconnected. Then, the upper-floor building units 7, 7 are installed above the lower-floor building units 6, 6 and connected to each other, and furthermore, a roof described later is mounted on the upper-floor building units 7, 7 above. It is constituted by forming a part. Each of the building units 6 and 7 on the upper and lower floors is of a frame type, provided with columns made of square steel pipes at the four corners, and connects these columns with long and short floor girders and ceiling girders made of channel steel. Form the body,
In addition, a small frame that can be transported is formed by bridging a floor beam and a ceiling beam on the floor beam and ceiling beam on the long side, and a floor panel, wall panel, and ceiling panel are attached to this frame. It is configured.

[0011] As shown in FIG.
Each pair of girder side (building long side) roof panels (hereinafter also referred to as girder side roof panel) 8a, 8a and wife side (building short side side) roof panel (hereinafter also referred to as wife side roof panel) 8
b and 8b are assembled only in a quadrangular pyramid shape, and no support structure is used.

As shown in FIG. 4, each girder-side roof panel 8a includes one girder beam 81a made of channel steel and two oblique beams 82a, 82a also made of channel steel. A truss frame is formed by welding and joining in a triangular shape with the groove opening surface facing inward, and extends on the upper surface of the truss frame at right angles to the girder beam 81a as shown in FIG. A plurality of trees 83a, 83a,... Are bridged in the direction, a base plate 84a is further stretched, and asphalt roofing (not shown) and a roofing material (not shown) are placed on the base plate 84a. Similarly, each wife side roof panel 8b
As shown in FIG. 3, one girder beam 81 made of channel steel is used.
b and two oblique beams 82b, 82 also made of channel steel.
b and a triangular shape by welding with the respective groove opening surfaces facing inward to form a truss frame. On the upper surface of this truss frame, the truss frame is formed in an extending direction orthogonal to the end beam 81b. A plurality of rafters 83b, 83b, ...
And further stretches the base plate 84b, and sets the base plate 84b
It is constructed by asphalt roofing and roofing material.

The girder beam 81a is set to the same length as the girder-side ceiling girder 71a (see FIG. 2) in the building unit 7 on the upper floor. This girder beam 81a
Are arranged along the longitudinal direction of the ceiling girders 71a located at the girder eaves of the building body, and are bolted to the upper portions of the ceiling girders 71a, so that the girder roof panels 8a are connected to the building units 7 on the upper floor. And fixed. For this reason, studs BT, BT,... Having a shaft portion protruding upward are provided at necessary places on the upper flange surface of the ceiling giant beam 71a. Correspondingly, a bolt insertion hole (not shown) for penetrating the studs BT, BT,... Protruding from the upper flange surface of the large ceiling beam 71a is formed in the lower flange surface of the girder beam 81a. I have. In the same manner,
Is the ceiling girder 71 on the wife's side in the building unit 7 on the upper floor.
b (see FIG. 2) is set to the same length as the beam length.
This girder beam 81b is disposed along the longitudinal direction of the ceiling girder 71b located at the eaves side of the building body, and
By being bolted to the upper flange upper surfaces of b and 71b, the wife-side roof panel 8b is installed and fixed to the building units 7, 7 on the upper floor. For this reason, the ceiling girders 71b,
On the upper flange surface of 71b, studs BT, BT,... Having a shaft portion protruding upward are provided at necessary places.
On the other hand, the studs B projecting from the upper flange surface of the large ceiling beam 71b are provided on the lower flange surface of the end beam 81b.
Bolt insertion holes (not shown) for inserting T, BT,... Are formed.

Further, the oblique beams 82a of the girder side roof panel 8a
As shown in FIG. 5, the oblique beams 82b of the wife-side roof panel 8b are connected to the bolts 91, 91 and the nuts 9 via the joint plates 9 at the necessary places S, S,.
The landing ridge is constituted by being fastened and fixed with 2,92. Therefore, each of the oblique beams 82a, 82b
Are preliminarily formed with bolt insertion holes at required locations S, S,....

The roof panels 8a, 8b,...
Are produced in advance in a factory together with the building units 6, 7,... And transported to the building site. The four roof panels 8a, 8
b,... are transported at once by one transport vehicle. At the building site, first, the building units 6, 7, ... on the upper and lower floors are installed on the foundation 1 and connected to each other, and then the roof panels 8a, 8b, ... on the upper part of the building unit 7 on the upper floor. Is installed. First, the wife's side roof panel 8b is lifted by a tow truck, and the wife's beam 81b is brought into contact with the upper surfaces of the ceiling girders 71b, 71b located on one of the wife's side eaves and tied.
This fastening work is performed with the nuts and the studs bolted while the studs BT, BT,... Projecting upward from the upper surfaces of the ceiling girders 71b, 71b are respectively inserted into the corresponding bolt insertion holes on the lower surface of the end beam 81b. , And the wife-side roof panel 8b is fastened to the ceiling girders 71b, 71b. In this state, a temporary support (not shown) is erected on a ceiling girder positioned at the center of the building body of the building unit 7 on the upper floor, and the temporary support supports the wife-side roof panel 8b in a predetermined one-way state. Next, the girder side roof panel 8
a, and the girder beam 81a is fastened to the ceiling girder 71a located on one of the girder side eaves by the same procedure as described above, and the existing wife-side roof panel 8b and girder-side roof panel 8
and a are interconnected. This inter-panel connection work is shown in FIG.
(See FIG. 2), the bolts 91, 91 and the nuts 92, 92 at the required points S, S,...
And the oblique beam 82b of the wife's side roof panel 8b. Thereafter, in the same manner, the remaining wife-side roof panel 8b and the girder-side roof panel 8a are sequentially attached to complete the structure of the quadrangular pyramid roof. Thereafter, the temporary support is removed. After the roof panels 8a, 8b,... Are connected to each other, the gap between the connecting portions is covered with a field board and covered with asphalt roofing, and the connecting portions are covered with roofing material to complete a quadrangular pyramid roof.

According to the above-mentioned roof structure, the four roof panels 8a, 8b,... Themselves are truss structures, and as a whole, because of the quadrangular pyramid structure, four roof surfaces are mutually supported. Therefore, without the help of supporting structures such as wife truss beams, girder truss beams, purlins, etc., the roof panels 8a, 8b,
… Only the roof structure can be completed. In addition, because of the quadrangular pyramid shape, the roof shape can be completed only with the roof panel without providing a small wall.

Although the embodiment of the present invention has been described in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and there are design changes and the like without departing from the gist of the present invention. Is also included in the present invention. For example, the unit building to which the roof structure of the present invention is applied is not limited to a steel frame type, but may be a wooden type or a concrete type. Further, in the above-described embodiment, the case where the roof panels are joined via the joint plate has been described.
The oblique beams 82a and 82b may be directly fastened and fixed with bolts. The truss frame is not limited to welding, and may be formed using a gusset plate.

Further, in the above-described embodiment, a case has been described in which the present invention is applied to the structure of a quadrangular pyramid-shaped roof where the exit building is concentrated at one point. It can be widely applied to the roof of the ridge.

[0019]

As described above, according to the roof structure of the first aspect, a single roof panel is assigned to each side of the ridge roof, and adjacent roof panels are mutually connected. It is designed to be connected in a supporting state,
The roof ridge structure can be completed using only the roof panels. Similarly, because of the ridge shape, the roof shape can be completed only with the roof panel. For this reason, a support structure such as a girder truss beam, a girder truss beam, a purlin, or the like becomes unnecessary, and accordingly, the material volume can be reduced and the cost can be reduced. In addition, since the roof panel is flat, a number of roof panels can be loaded on one transportation vehicle, and it is safe to stack many roof panels. Therefore, transportation safety and transportation efficiency can be improved. In addition, the roof frame has one horizontal beam and two slopes.
Since the truss is composed of a beam and
It is possible to obtain a roof structure having a guaranteed property.

[0020]

[Brief description of the drawings]

FIG. 1 is a perspective view showing an external configuration of a unit building to which a roof structure according to an embodiment of the present invention is applied.

FIG. 2 is a plan view of the unit building, that is, a plan view showing an appearance of a roof structure according to an embodiment of the present invention.

FIG. 3 is a plan view showing the shape of each roof panel applied to the roof structure.

FIG. 4 is a perspective view showing a frame of the roof panel.

FIG. 5 is a cross-sectional view showing a joint of the roof structure.

FIG. 6 is a diagram provided for explanation of a conventional technique.

[Explanation of symbols]

 6 Building unit on the lower floor (building body) 7 Building unit on the upper floor (building body) 8a Girder side roof panel (roof panel) 8b Wife side roof panel (roof panel) 81a Girder beam (horizontal beam, component of roof frame) 81b Tsum beam (horizontal beam, component material of roof frame) 82a, 82b Diagonal beam (component material of roof frame) 84a, 84b

Claims (1)

(57) [Claims] 1. A roof structure forming a ridge roof,
The roof panel includes a plurality of roof panels divided for each surface of the roof, and each of the roof panels and an adjacent roof panel are joined in a manner supporting each other , and each of the roof panels is formed of one water panel.
A roof frame is formed from a flat beam and two oblique beams.
At least a field board is stuck on the upper surface of the roof frame
Wherein the horizontal beam is a building book on which the roof is mounted.
Joined to the corresponding ceiling beam of the body, each said diagonal beam is adjacent
A roof structure which is joined to opposed diagonal beams of a roof panel .