JPH09328860A - Roof structural body and roof construction method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roof structural body which is capable of supporting the whole rood structural body to a satisfactory extend without segmenting a partition wall or the like in a wall exterior and having strong strength based on a strength structure and simplifying construction work on site and its construction method. SOLUTION: This invention relates to a roof structural body 10 which includes two surfaces having different roof gradients with a ridge sandwiches and a ceiling surface formed below the rood surfaces. The rood structural body 10 is provided with a plurality of roof surfaces 20 whose rood surfaces are divided at least along the flowing direction and a plurality of ceiling sections 30 whose ceiling surfaces are divided at least onto the bean-to-beam direction. Furthermore, there are provided a plurality of truss structural bodies 40 which support respectively the two roof surfaces and the ceiling surface on both edges in the eaves direction of each roof surface and each ceiling surface and formed in the girder direction with a space. Each of the truss structural bodies 40 is provided with an upper side material 42 which receives the rood surface and a lower side material 44 which is connected to the upper side material 42 and supports the ceiling section.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a roof structure and a roof construction method.

[0002]

[Background Art and Problems to be Solved by the Invention] From the standpoints of difficulty in securing skilled workers involved in on-site construction, shortening of construction period, and homogenization of housing quality, industrialization of housing is progressing. The panel construction method is known as the industrialization of this house. In this panel construction method, a building panel, such as a roof panel in which a face material is attached to one surface of a frame-shaped core material, is produced at a factory, and this is joined at a construction site to construct a building.

When constructing a roof area in this panel construction method, as shown in FIG. 6, a plurality of wall panels 100 are provided.
After the partition panel 102 and the like are erected to construct each of the outer and inner wall portions, in the wall portion along the beam direction (the direction of FIG. 6Y), the outer and inner walls of the wall panel 100 and the partition panel 102, etc. A roofing panel 104 having a predetermined roof inclination angle is attached on the top surface of the wall portion, and at least the roofing panels 104, 104 facing each other are rafters 106, suspended beam members 108, purlins 110 along the girder direction. Etc. Further, a shed panel or the like is installed on the partition panel 102, particularly right below the ridge of the inner wall portion along the girder direction.

Next, on the roof surfaces 120a and 120b, roof panels 122 are provided between the rafter 106 and the ridge, and between the rafter 106 and the eaves at a predetermined roof inclination angle from the ridge to the eaves. The short side is rafter 106, wall panel 10
It is arranged so that it rides on 0 etc., and is laid in sequence along the girder direction.

On the other hand, on the ceiling surface 130, the hanging member 134 is attached from each hanging beam member 108, and then the field edge 132 and the like are attached, and the field edge 132 is hung and fixed by the hanging member 134.

However, in the above structure, in order to support the load of the entire roof structure including the ceiling surface on the inner and outer wall portions (wall panel, partition panel, etc.) formed in the lower portion,
It is necessary to partition the area enclosed by the walls by partitioning it to maintain the strength of the bearing structure.For example, if you want to expand each partitioned room area, the partition wall becomes an obstacle and There was a problem that it could not be widened.

Further, if the position of the partition wall is changed, the strength of the bearing structure of the inner and outer wall portions cannot be maintained.

Further, the construction of the roof region in this manner has a problem that the number of members for working on site is large and the construction work becomes complicated.

The present invention has been made in order to solve the problems of the above-mentioned technology, and its purpose is to provide an entire roof structure without partitioning a partition wall or the like inside the wall portion. It is an object of the present invention to provide a roof structure and a roof construction method that can be sufficiently supported, have a strong strength in terms of a load bearing structure, and can simplify the on-site construction work.

[0010]

Means for achieving the above object will be described by associating the constituent elements of each claim of the present application with the reference numerals of the embodiments of the present invention.
The roof structure according to the invention described in (1) is a roof structure (10) including two roof surfaces having different roof slopes with a ridge top portion interposed therebetween, and a ceiling surface formed below the roof surface, A plurality of roof surface parts (20) in which the roof surface is divided at least along the flow direction, a plurality of ceiling surface parts (30) in which the ceiling surface is divided at least in the beam-to-beam direction, the two roof surfaces and the A truss structure (40) formed by supporting a plurality of ceiling surfaces at each of the roof surface portions and both end edges in the girder direction of each ceiling surface portion and forming a plurality at intervals in the girder direction,
And each truss structure includes an upper side member (42) for receiving the roof surface and a lower side member (44) connected to the upper side member and supporting the ceiling surface portion.

According to the invention described in claim 1, the following actions and effects are obtained. (B) The ceiling surface can be used as a horizontal structure,
It is possible to deal with horizontal load due to wind, earthquake, etc. Since the roof panel also effectively acts on the horizontal load, it is possible to form a roof structure having a smaller number of members and a stronger strength than the conventional structure. In addition, since the internal space surrounded by the wall of the outer wall can be made large, it can be effectively and freely partitioned and used, and it is necessary to consider the arrangement of the partition wall as the load bearing wall line. Absent.

(B) For example, the longitudinal core material of the long side of the roof surface portion can also be used as a rafter, a rafter supporting each roof surface portion becomes unnecessary, and the number of members can be reduced to reduce the cost. In addition, since the roof surface part is surface-divided in the flow direction of the roof surface and a short core material formed on the short side of the roof surface part is placed on the upper sap material of the truss structure, the conventional rafter The load on the roof surface can be concentrated on the upper sap member of the truss structure as compared with the case where the short side of the roof surface portion is placed.

A roof structure according to a second aspect of the present invention is the roof structure according to the first aspect, wherein the lower sill member of the truss structure has an engaging portion (46) that engages with each of the ceiling surface portions,
Each of the ceiling surface portions is characterized in that an engaged portion (36) engaged with each of the engaging portions of the pair of truss structures is formed at both end portions between the beams of each of the ceiling surface portions.

According to the second aspect of the present invention, since the lower side member of the truss structure has the engaging portion, when the engaged portion of the ceiling surface portion and the engaging portion are engaged and connected, the ceiling surface Can be used as a horizontal structure, and the strength of the roof structure can be secured. Moreover, since the mounting work of the ceiling surface portion can be easily performed, the construction work can be simplified.

A roof structure according to a third aspect of the present invention is the roof structure according to the first or second aspect, wherein each of the ceiling surface portions has at least a pair of framed vertical core members, horizontal core members, and the vertical core members. And a face material attached to one surface of the frame body framed by the lateral core material.

According to the third aspect of the present invention, by forming the ceiling surface portion by the frame body made of the core material and the face material, it is possible to easily form the horizontal structure.

According to a fourth aspect of the present invention, in the roof structure according to any one of the first to third aspects, the ceiling surface formed by each of the ceiling surface portions is provided on substantially the upper end surface of the wall portion. Is characterized by.

According to the invention described in claim 4, since a horizontal construction surface can be formed on the upper end surface of the wall portion by each ceiling surface portion, the structure composed of the wall portion and the ceiling surface has a substantially rectangular parallelepiped shape. It is formed, has a simple structure, and has increased strength.

A roof construction method according to a fifth aspect of the present invention is the roof construction method for a roof structure according to the first aspect, wherein the truss structures are erected in parallel along the girder direction. The upper surface of each truss structure is supported by the upper end surfaces of the paired wall parts, and a plurality of roof surface parts is arranged on each upper sap member of each truss structure. It is characterized in that a plurality of divided ceiling surface portions are arranged.

According to the fifth aspect of the present invention, when the roof structure is constructed, the truss structure is erected on the wall portion, and thereafter, the ceiling surface portion is arranged in the ceiling surface area, and the roof is formed. Since the roof structure can be easily constructed by arranging the roof surface in the surface area, the conventional complicated structure can be omitted, the number of members can be reduced, the site construction work can be simplified, and the site work time can be shortened. it can.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an example of a preferred embodiment of the present invention will be specifically described with reference to the drawings.

<Regarding the Roof Structure> First, an outline of the entire roof structure constructed in the roof construction area prior to the truss structure which is a characteristic configuration of the present invention is shown in FIGS. 1 and 4.
And FIG. 5 will be described. FIG. 1 is an overall perspective view of a roof structure 10 according to this embodiment. 4A and 4B are diagrams showing the roof structure 10, where FIG. 4A is a sectional view and FIG. 4B is a partially enlarged view of FIG. FIG. 5: shows the roof structure 10, (A) is a partially expanded view, (B) shows sectional drawing of (A).

The roof structure 10 of the present invention comprises two roof surfaces A having a predetermined roof slope, and a ceiling surface B formed below the roof surface, and the entire roof structure 10 is a lower part. It is supported and formed on the wall portion 1 as an outer wall formed in the.

As shown in FIGS. 1 and 5 (A), the wall portion 1 is constructed by vertically arranging a plurality of wall panels 2 and the like. Specifically, a plurality of wall panels 2 are erected on a rectangular wall surface serving as an outer wall to construct a wall portion 1, and a member 8 is provided on each wall panel 2.
Will be mounted and fixed, and the truss structure 40 will be mounted thereon. As shown in FIG. 5 (A), the wall panel 2 constitutes a frame body with a core material 4 assembled in a rectangular frame shape,
The face material 6 is fixed to both surfaces thereof.

Further, in the wall surface in the direction (Y direction) intersecting the pair of wall surfaces 2 on which the truss structure body 40 is installed, the truss structure body 40 is provided on the top surface of each wall panel 2.
The roof panel 9 and the like shown in FIG.

On the roof surface A, the flow direction (Z direction in FIG. 1)
A plurality of roof panels 10 that are surface-divided are formed, and a plurality of ceiling panels 30 that are surface-divided in the beam-to-beam direction (Y direction in FIG. 1) are formed on the ceiling surface B. Furthermore, in the girder direction of the roof structure 10 (X direction in FIG. 1), a plurality of, for example, four-tier truss structures 4 are arranged at predetermined intervals.
0 is formed.

As shown in FIG. 5 (A), the roof panel 20 is constructed by forming a frame body with a core material 22 assembled in a rectangular frame shape, and fixing a face material 24 to one surface thereof. It When laying a plurality of roof panels 20 between the truss structures 40, the short sides are oriented in the girder direction (X direction).

<Ceiling Panel> Next, the ceiling panel 30 will be described with reference to FIGS. 3 and 4. FIG.
It is a figure which shows a ceiling panel, (A) is a top view which shows a ceiling panel, (B) is sectional drawing of (A), (C).
[Fig. 4] is a plan view showing an arrangement state of ceiling panels.

As shown in FIGS. 3A and 3B, the ceiling panel 30 includes a vertical core member 32, a horizontal core member 34, a reinforcing vertical core member 33, and a reinforcing horizontal core member that are framed in a rectangular frame shape. This is a so-called skeleton panel having a frame body at 35. And a pair of horizontal core members 3 facing each other among the core members constituting the frame body
A slightly thin core material is attached and fixed to the outer side surfaces of the parts 4 and 34 to form the engaged parts 36 and 36.

The engaged parts 36, 36 are engaged with engaging parts 46 of a truss structure 40, which will be described later, as shown in FIG. And when laying a plurality of ceiling panels 30 between truss structures 40, the roof panels 20
The same direction, that is, the short side having the horizontal core member 36 is oriented in the girder direction (X direction).

<Regarding Truss Structure> Here, a truss structure which is a characteristic configuration of the present invention will be described with reference to FIGS. 1, 2 and 5. FIG. 2 is a diagram showing an example of the truss structure of the roof structure shown in FIG. 1, in which (A) is a front view and (B) and (C) are sectional views.

As shown in FIGS. 1 and 2, the truss structure 40 has two roof surfaces A and A and a ceiling surface B which are arranged at both ends of each roof panel 20 and each ceiling panel 30 in the beam direction (X direction). Two upper side members 42, 42 each supporting the roof panel 20 and a lower side supporting the ceiling panel 30 by connecting the two upper side members 42, 42 with each other (short side). And a material 44.

As shown in FIG. 2, the upper sill member 42 includes a plurality of core members 42b-1, 42b-2, ...
42a-1 and 42a-2, etc. are configured by multi-layer connection with a reinforcing plywood 49 interposed inside.

A plurality of reinforcing beam members 48 are erected between the upper side members 42 and the lower side members 44, and the connecting portions between the reinforcing beam members 48 and the lower side members 44 and the reinforcing beam members 48 and the upper side members 42. Rigid connecting plates 50 are fixed to the outer side surfaces of the beam members at the connecting portions to strengthen the connecting portions.

Further, as shown in FIG. 5, in the connecting region of the lower side member 44 and the upper side member 42, a rigid connecting plate 52 larger than the rigid supporting plate 50 is used to strengthen the connection of this portion. ing.

As shown in FIG. 2, the lower side member 44 is composed of a plurality of core members 44b-1, 44b-2, ...
44a-1 and 44a-2 and the like are connected in layers with the reinforcing plywood 49 interposed inside. Further, as shown in FIG. 4 (B), a plate material having a slightly wide thickness is connected and formed at the lower end thereof to engage with the engaged portions 36, 36 of each ceiling panel 30 on both side surfaces of the lower side material 44. Engaging part 4
6 is formed.

The engaging portion 46 has a function as a load receiving member for receiving the load of the ceiling panel 30, and each ceiling panel 3
When 0 is engaged with the lower side member 44, the weight of the ceiling panel is transmitted to the wall portion 1 to which the wall panel 2 is connected via the lower side member 44, and the ceiling surface B is used as a horizontal construction surface. You can

The lower sill member 44 has a function of supporting the entire roof structure 10 on the wall portion 1 and setting a horizontal reference plane of the lower surface of the ceiling panel 30. That is, since the lower sill member 44 is fixed on the top surface of the wall portion 1, the lower surfaces of the ceiling panels 30 described above can be aligned in a straight line, so that positioning work is not required. The lower sill 44 is used for reinforcing the plywood 4 in order to secure strength enough to receive the entire roof structure 10.
9 etc. are included, and each material is formed of laminated wood. In this way, by installing the roof structure 10 on the wall portion 80, each ceiling panel can be placed on the lower sill member 44 to support the entire roof structure 10.

As shown in FIG. 5, the truss structure 40 has holes (not shown) formed at both ends thereof, and the anchor bolts 60 are inserted into the holes, and the wall panels 2 are fixed by the anchor bolts 60. It is fixed via the member 8 placed on the top surface. Therefore, the truss structure 40 and the wall panel 2 can be firmly connected and fixed.

In the roof structure 10 as described above, the roof panels 20 and 20, the ceiling panel 30, and the truss structure 40 are connected and fixed on the wall portion 1 to support the load of the entire roof structure 10. are doing.

<About Roof Construction Method> Next, a roof construction method will be described with reference to FIGS.

Various panels such as the wall panel 2, the roof panel 20, the ceiling panel 30, and the truss structure 40 are manufactured in advance at the factory stage so that they can be assembled at the construction site. At this time, the engaged member 36 is attached to the core member of the ceiling panel 30, and the lower side member 44 of the truss structure 40 is attached.
Engagement portions 46 are formed in each of them.

At the construction site, first, the wall panel 2 is erected at a predetermined position to construct the wall portion 1. At this time, on the pair of wall portions 1 corresponding to the beam direction (Y direction in FIG. 1) of the roof area, a roof with a triangular cross section having substantially the same contour shape as the two roof surfaces A and A and the ceiling surface B is formed. The cut panel 9 is shown in FIG.
As shown in (A), it is installed on the top surface of the wall 1. Note that this region may be formed by the truss structure 40.

Next, as shown in FIG. 1, a plurality of, for example, four truss structures 40 are erected on the pair of wall portions 1 corresponding to the girder direction (X direction in FIG. 1) of the roof area. .
At this time, as shown in FIGS. 5A and 5B, the truss structure 40 and the member 8 on the wall panel 2 are connected and fixed by the anchor bolts 60.

After that, each upper sap member 4 of each truss structure 40 is
A plurality of roof panels 20 are laid on 2 so that the short sides thereof face the girder direction (X direction), and as shown in FIG. 3 (C), between the lower side members 44 of each truss structure 40, The construction of the roof structure 10 is completed by laying the plurality of ceiling panels 30 so that the short sides thereof face the girder direction (X direction). At this time,
As shown in (A), the engaged portion 36 of the ceiling panel 30 is engaged and connected to the engaging portion 46 of the truss structure 40.

As described above, the present embodiment has the following effects. (1) The ceiling panel can be used as a horizontal construction surface, the load of the entire roof structure can be received by the wall portion of the outer wall, and the load-bearing wall line is made into a simple square shape, and the number of members is smaller than in the conventional case. In addition, it is possible to form a roof structure having higher strength than before. Further, the internal space surrounded by the wall portion of the outer wall can be effectively and freely partitioned and used, and it is not necessary to consider the arrangement of the partition wall as the load bearing wall line.

(2) The longitudinal core material on the long side of the roof panel can also be used as a rafter, so that a rafter supporting each roof panel is not required, and the number of members can be reduced to reduce the cost. In addition, the roof panel is surface-divided in the flow direction of the roof surface, and for example, a short core material formed on the short side of the roof panel is placed on the upper sap material of the truss structure. The load on the roof surface can be concentrated on the upper sap material of the truss structure, as compared with the case where the short side of the roof panel is placed.

(3) Since the lower side member of the truss structure has the engaging portion for engaging and supporting the ceiling panel, when the engaged portion and the engaging portion of the ceiling panel are engaged and connected, the ceiling surface is It can be used as a bearing wall, and the strength of the roof structure can be secured. Moreover, since the work of attaching the ceiling panel can be easily performed, the work of construction can be simplified.

(4) When constructing the roof structure, the truss structure is erected on the wall portion, and thereafter, the ceiling panel is arranged in the ceiling surface area and the roof panel is arranged in the roof surface area. Therefore, the roof structure can be easily constructed. Therefore, the conventional complicated structure can be omitted, the number of members can be reduced, the on-site construction work can be simplified, and the on-site work time can be shortened. Moreover, while the bearing structure is strengthened without using a partition wall or the like in the internal space surrounded by the wall portion,
The construction work can be simplified.

(5) Since the horizontal reference plane on the lower surface of the plurality of truss structures constituting the roof structure and the roof inclination reference plane on the hypotenuse can be uniquely set, the positioning of each reference plane of the ceiling surface and the roof surface Since the work and the positioning adjustment work thereof are unnecessary, the construction work can be simplified and the work time can be shortened.

(6) Since each ceiling surface can form a horizontal structure on the upper end surface of the wall, the structure composed of the wall and the ceiling is formed in a substantially rectangular parallelepiped shape, and the structure is simple. Strength increases.

While the apparatus and method of the present invention have been described in accordance with some specific embodiments thereof, those skilled in the art will appreciate the practice described in the text of the invention without departing from the spirit and scope of the invention. Various modifications can be made to the form. For example, the roof structure of the present invention can be applied to a snowless roof as shown in FIG.

In the structure of FIG. 7, the roof structure 70 has a plurality of truss structures 72 of different sizes which are erected on the upper end surface of the wall 1. A parapet panel 74 is installed on the wall 1. Then, as shown in FIG. 8 (A), the roof has a shape in which the roof slope is depressed toward the center of the wall 1. In addition, on the truss structure 72, the connecting girder 7
A roof panel 76 is installed via 8. In the truss structure 72, as shown in FIG. 8B, the rigid connecting plate 8 includes the engaging portion 82, the upper side member 84, the lower side member 86, the reinforcing beam member 88, and the like.
It is a configuration in which 0s are connected.

In addition to the panel construction method, the ceiling surface is used as a horizontal construction surface so that the engaging portion of the truss structure of the present example and the engaged portion of the ceiling portion have an engaging relationship with each other. Applying strengthening structure can be applied.

Further, the structure of the truss structure need only have at least the upper sap material and the lower sap material, and even when various other members are attached and fixed, or a plurality of truss structures are attached. For example, a configuration in which a plurality of beam members or the like are connected and integrated may be used. In addition, various other shapes may be used.

Moreover, each truss structure may be connected by a connecting member below, and the connected member may be used as an engaging portion to form an engaged portion on the longitudinal side of the ceiling panel.

[0057]

According to the invention of claim 1, the ceiling surface can be used as a load bearing wall, and the load bearing wall line is formed into a simple quadrangular shape to form a roof structure having stronger strength than the conventional structure. You can Further, rafters supporting each roof surface portion are not required, and the number of members can be reduced to reduce the cost.

According to the second aspect of the present invention, since the ceiling surface portion can be constructed only by engaging the engaged portion of the ceiling surface portion with the engaging portion of the truss structure, the construction work can be simplified. it can.

According to the third aspect of the present invention, by forming the ceiling surface portion by the frame body made of the core material and the face material, it is possible to easily form the horizontal construction surface.

According to the invention of claim 4, since each ceiling surface can form a horizontal construction on the upper end surface of the wall, the structure is simple and the strength is enhanced.

According to the invention of claim 5, the conventional complicated structure can be omitted, the number of members can be reduced, the on-site construction work can be simplified, and the on-site work time can be shortened.

[Brief description of drawings]

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

2A and 2B are views showing an example of a truss structure of the roof structure shown in FIG. 1, in which FIG. 2A is a front view and FIGS. 2B and 2C are cross-sectional views.

FIG. 3 is a diagram showing a ceiling surface portion of the roof structure shown in FIG.
(A) is a plan view showing a unit ceiling surface portion, (B) is a sectional view of (A), and (C) is a plan view showing an arrangement state of ceiling surface portions.

4A and 4B are views showing the roof structure of FIG. 1, in which FIG. 4A is a sectional view and FIG. 4B is a partially enlarged view of FIG.

5 shows the roof structure of FIG. 1, (A) is a partially enlarged view, and (B) is a sectional view of (A).

FIG. 6 is a cross-sectional view showing a conventional roof structure.

FIG. 7 is a perspective view showing a roof structure according to another embodiment of the present invention.

8 (A) is a cross-sectional view showing the roof structure of FIG. 7, and FIG. 8 (B) is a side view showing a part of the truss structure of FIG. 8 (A).

[Explanation of symbols]

 10, 70 Roof structure 20 Roof surface part 30 Ceiling surface part 36 Engaged part 40, 72 Truss structure 42 Upper sap material 44 Lower sap material 46 Engagement part

Claims (5)

[Claims] 1. A roof structure including two roof surfaces having different roof slopes across a building top and a ceiling surface formed below the roof surface, wherein the roof surface is at least along a flow direction. A plurality of roof surface portions that are divided by a plurality of roof surface portions, a plurality of ceiling surface portions where the ceiling surface is divided at least in the beam direction, the two roof surfaces and the ceiling surface, the roof surface portion and the girder direction of each ceiling surface portion A plurality of truss structures that are respectively supported at both edges and are spaced apart in the girder direction, and each truss structure has an upper sap member that receives the roof surface,
A lower sapwood that is connected to the upper sapwood and supports the ceiling surface portion, and a roof structure. 2. The truss structure body according to claim 1, wherein the lower sill member has an engaging portion that engages with each of the ceiling surface portions, and each of the ceiling surface portions has an engagement portion of each of the pair of truss structure bodies. A roof structure, wherein engaged parts to be engaged with the joint part are formed at both ends of the ceiling surface part between the beams, respectively. 3. The ceiling surface portion according to claim 1, wherein each of the ceiling surface portions is at least one surface of a frame body framed by the vertical core material and the horizontal core material, and the pair of vertical core materials and the horizontal core material. And a face material attached to the roof structure. 4. The roof structure according to claim 1, wherein a ceiling surface formed by each of the ceiling surface portions is provided on substantially the upper end surface of the wall portion. 5. The roof construction method for a roof structure according to claim 1, wherein the truss structures are supported by upper end surfaces of a pair of wall portions that are erected in parallel along a girder direction. Then, a plurality of roof surface portions are arranged on the upper sap members of the truss structures, and a plurality of ceiling surface portions divided in the beam direction are arranged between the lower sap members of the truss structures. A characteristic roof construction method.