JPH05171729A - Structure of roof - Google Patents

Abstract

PURPOSE:To provide high strength roof structure by providing a main roof structure part in which a roof member is elongated from a ridge to eaves on both sides of the ridge in the width direction, and also by providing a downward oriented trapezoidal sub-roof along the ridge and the eaves of the main roof structure part. CONSTITUTION:A roof 15 is made of a main roof structure part 17 elongated from a ridge 16 to eaves on both sides of the ridge in the direction of the width, and a sub-roof structure part 18 elongated from the main roof structure part 17 on the ridge side and the eaves side. The edge 17a of the main roof structure party 17 on the eaves side is arranged horizontally, and the edge 18a of the sub-roof structure part 18 on the waves side is inclined downwards. In addition, a roof end panel 22 is provided at the connecting portion of the main roof structure part 17 and the sub-roof structure part 18, and is supported on a wall panel 13. A auxiliary ridge member 23 is elongated toward the sub-roof structure part 18 of the roof end panel 22, and the sub-roof structure part 18 is supported by the tip end of this auxiliary ridge member 23. Thus, even if strong wind blows the roof, load does not concentrate at the edge of the eaves, and breakage of the load concentrating part can be avoided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roof structure which is strong against wind load applied to a house during strong wind.

[0002]

2. Description of the Related Art In detached prefabricated houses, planned prefabricated houses called freestyle, for example, are supplied in place of already standardized and standardized houses. Various variations have been developed to meet the diverse needs of In particular, since the roof shape of a house is an important factor in determining the style of the house, at present, not only flat roofs and gable roofs, but also roofs with various structures such as siding roofs, ridge roofs, and rectangular roofs are provided. ing.

[0003]

FIG. 5 shows an example of the structure of a prefabricated house having a gable roof in which both sides of the ridge are cut off from the ridge. In this house 1, a unitized floor panel 3 is laid on a concrete foundation 2 constructed on site, a wall panel 4 is assembled on it, and a small wall panel 5 is erected on it. Furthermore, after further forming a frame, a tree, etc. and straddling beams etc. to form a shed, the roof panel 6 is attached to the ridge of the shed and the small wall panel 5 or the wall panel 4, respectively.
The gable roof 7 is constructed by assembling.

In the case of a prefabricated house, the roof panel 6 has a panel structure in which a face material is attached to the upper surface of a frame body assembled in a rectangular frame shape. The rectangular roof panel 6
It is configured by joining a plurality of. Gable roof 7 with the above configuration
In the case of the house 1 having the above, when the house 1 is blown with a strong wind such as a typhoon, a part of this wind acts in a direction of lifting the gable roof 7 from below. In this case, the wind transmitted through the wall panels 4 is concentrated on the corner portion or the ridge portion of the wall of the house 1, and the load due to the wind is applied to the end portion a of the roof panel 6 above the corner portion or the ridge portion. concentrate.

On the other hand, a normal gable roof 7 shown in FIG.
According to this structure, the load concentrated on the ridge part of the gable roof 7 is received by the ridge of the roof truss, so there is sufficient proof strength and structural strength, but the roof panel 6 at the corner of the house 1 With respect to the load concentrated on the end portion a, the wall panel 6 serving as a supporting portion of the roof panel 6 is distant from the end portion a, so that the structural strength may not be sufficient in this portion. The present invention has been made in view of the above circumstances, and an object thereof is to provide a roof structure having high structural strength.

[0006]

In order to solve the above-mentioned problems, the invention according to claim 1 provides a roof structure in which a roof material is formed to extend from a ridge part to both sides of the ridge part in the width direction to the eaves. , Two main roof components that are flat rectangular or square with roof material extending from the ridge to the eaves on both sides in the width direction of the ridge, and the main roof components along the ridge and the eaves It is composed of four downward trapezoidal sub-roofs extending from the roof.

In order to solve the above-mentioned problems, a second aspect of the present invention is a roof structure having a shape in which a roof material is formed so as to extend from a ridge part to both sides in the width direction of the ridge part to the eaves end. The two main roof components that are flat rectangular or square and have roof materials extending to the eaves on both sides in the width direction of the roof, and the main roof components extending along the ridge and eaves of the main roof component. It is composed of four downward trapezoidal sub-roofs, and the entire roof consisting of the main roof and the sub-roofs has a rectangular planar shape.

In order to solve the above-mentioned problems, a third aspect of the present invention is a roof structure having a shape in which roof members are formed to extend from the ridge to both sides of the ridge in the width direction to the eaves. The two main roof components that are flat rectangular or square and have roof materials extending to the eaves on both sides in the width direction of the roof, and the main roof components extending along the ridge and eaves of the main roof component. It is composed of four downward trapezoidal sub-roof parts, an outer wall is formed below the sub-roof part, and the sub-roof part is supported by a small wall extending above the outer wall, and the main roof part is also formed. The joint between the roof and the sub-roof is supported by a house-cutting structure that is erected on the back of the hut.

[0009]

[Function] Since the sub roof component is connected downward to the main roof component in an inclined state, the wind blown along the wall and flowing along the main roof component and the sub roof component is
Concentrate on the joint between the main roof component and the sub-roof component and apply a load to this joint. Since the joint portion of the main roof constituent portion and the sub roof constituent portion is supported by the roof construction member, the structural strength of this portion is sufficiently enhanced. Therefore, even when exposed to a strong wind such as a typhoon, sufficiently high structural strength is exhibited. Further, since the load due to the wind does not concentrate on the edge of the roof, there is no possibility that the edge of the roof will be damaged. Furthermore, since the overall shape of the roof including the main roof constituent portion and the sub roof constituent portion is formed to be a flat rectangular shape, it is possible to provide a roof structure excellent in aesthetics.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an example of a house having a roof structure according to an embodiment of the present invention. In the house 10 shown in FIG. 1, reference numeral 11 is a concrete foundation, and a floor panel 12 ...
A wall panel 13 is built on 2 and a plurality of roof panels are joined on the wall panels 13 to form a roof 15. The roof 15 has a main roof structure portion 1 formed by extending ridges 16 on both sides in the width direction to the eaves.
7, 17 and the sub-roof parts 18 and 18 formed by extending these main roof parts 17 on the ridge side and the eaves side, respectively, as shown in FIG. It is in a shape. The eaves-side edge 17a of the main roof forming part 17 is oriented horizontally, but the eaves-side edge 18a of the sub-roof forming part 18 is connected to the edge 17a of the main roof forming part 17. It is inclined downward from the open part.

In the present embodiment, the main roof forming portion 17 has a flat rectangular shape, and the sub roof forming portion 18 has a flat trapezoidal shape. The main roof portion 17 is formed by joining a plurality of rectangular roof panels 20. The roof panel 20 includes a horizontal frame 20a and a vertical frame 20 as shown in FIG.
b and the crosspiece 20c are assembled vertically and horizontally to form a rectangular frame,
A surface material is attached to the upper surface of the rectangular frame. The sub-roof constituent part 18 is formed into a flat trapezoid by joining one or a plurality of trapezoidal roof panels. The roof panel that constitutes the sub-roof structure portion 18 is the roof panel 20 that constitutes the main roof portion 17 described above.
Basically, the same configuration is used, but only the outer shape is changed to a trapezoidal shape.

At the portion where the main roof portion 17 and the sub-roof portion 18 are joined, a roof panel 22 is provided. The roofing panel 22 is supported and provided on the wall panel 13 as a part of an attic structure constructed by bridging beam members on the wall panels 13 ... There is. An auxiliary ridge member 23 is provided on the side of the sub-roof 18 of the roofing panel 22 so as to extend the ridge 16, and the auxiliary roof members 18 are formed on both sides of the auxiliary ridge member 23 in the width direction. There is. The side surface of the auxiliary ridge member 23 is triangular, and the upper edge of the auxiliary ridge member 23 is a slope that inclines downward as the distance from the ridge portion 16 increases. I support you. Further, a triangular small wall panel 24 that supports the sub roof portion 18 and is connected to the wall panel 13 is provided at the tip of the auxiliary ridge member 23.

Next, a case where a strong wind is blown to the house 10 constructed as described above will be described. When a strong wind is blown on the house 10, the wind blown on the wall panels 13 spreads through the wall panels 13 and applies a load on the eaves side of the roof 15. In this case, since the edge 18a on the eaves side of the sub-roof forming part 18 is inclined downward from the joint with the main roof forming part 17, the wind applied to the eaves side is the eaves side of the main roof forming part 17. Concentrate on the joint between the sub roof structure portion 18 and the eaves tip, and apply a load to this portion. However,
Since this portion is supported and reinforced by the roofing panel 22, the structural strength of this portion is sufficiently high even if a considerable load acts on this portion. Therefore, in the house 10, even if a considerably strong wind is blown by a typhoon or the like, the load is not concentrated on the end of the eaves, and there is no possibility that the part where the load is concentrated is destroyed.

The roof 15 having the above-mentioned structure and shape is
It has an unprecedented shape and structure, and its planar shape is rectangular, so it has a unique aesthetic appearance, is attractive, and is extremely valuable in improving the design of the entire house. Also,
The house 10 provided with the roof 15 having the above structure gives a completely different aesthetics and impression to a house having another conventional type roof, so that the residents can be highly satisfied.

By the way, in the structure of the above embodiment,
Although the main roof constituent part 17 is formed in a rectangular shape, it goes without saying that the main roof constituent part 17 may be formed in a square shape.

[0016]

As described above, according to the present invention, since the sub roof component is connected downward to the main roof component in the inclined state, the main roof component is sprayed along the wall. And the wind that flows along the sub-roof component concentrates on the joint between the main roof component and the sub-roof component, and applies a load to this part. Since the joint portion of the main roof constituent portion and the sub roof constituent portion is supported by the roof construction member, the structural strength of this portion is sufficiently enhanced. Therefore, even when exposed to a strong wind such as a typhoon, the portion where the load is concentrated exhibits sufficiently high structural strength. Further, since the load due to the wind does not concentrate on the edge of the roof, there is no possibility that the edge of the roof will be damaged. Furthermore, since the overall shape of the roof including the main roof constituent portion and the sub roof constituent portion is formed to be a flat rectangular shape, it is possible to provide a roof structure excellent in aesthetics.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a house having a roof structure according to an embodiment of the present invention.

FIG. 2 is a plan view of a roof structure according to an embodiment of the present invention.

FIG. 3 is a side view of a roof structure according to an embodiment of the present invention.

FIG. 4 is a side view in which a part of a roof structure according to an embodiment of the present invention is cut away.

FIG. 5 is a perspective view showing an example of a house provided with a conventional gable roof.

[Explanation of symbols]

 10 House 13 Wall Panel 15 Roof 16 Building Part 17 Main Roof Component 18 Secondary Roof Component 20 Roof Panel 22 Roofing Panel (Roofing Structure) 23 Auxiliary Building Member 24 Small Wall Panel

Claims (3)

[Claims] 1. A roof structure having a shape in which roof material is formed to extend from the ridge part to both sides of the ridge portion in the width direction, and the roof material extends from the ridge part to both sides of the ridge portion in the width direction to the eaves. It consists of two main roof components that are rectangular or square in plan view, and four trapezoidal sub-roofs that extend down the main roof and the roof of the main roof. A roof structure characterized by 2. In a roof structure having a shape in which roof material is formed to extend from the ridge part to both sides of the ridge portion in the width direction, the roof material extends from the ridge part to both sides of the ridge portion in the width direction to the eaves. It consists of two main roof components that are rectangular or square in plan view, and four trapezoidal sub-roofs that extend down the main roof and the roof of the main roof. A roof structure comprising the main roof portion and the sub-roof portion, wherein the entire roof has a rectangular planar shape. 3. A roof structure having a shape in which roof material is formed to extend from the ridge part to both sides in the width direction of the ridge part to the eaves end, and the roof material extends from the ridge part to both eaves ends in the width direction of the ridge part. It consists of two main roof components that are rectangular or square in plan view, and four trapezoidal sub-roofs that extend down the main roof and the roof of the main roof. A small wall formed by forming the entire roof consisting of the main roof portion and the sub roof portion into a rectangular planar shape, forming an outer wall below the sub roof portion, and extending the outer wall upward. The roof structure is characterized in that the sub-roof part is supported by and the joint part between the main roof part and the sub-roof part is supported by a roof construction structure standing upright in the attic.