JPH086389B2 - House roof structure - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a roof structure for a house in which a ridge truss can be firmly bridged to a portion where a roof beam does not exist, and the rigidity of a shed can be enhanced.

[Problems to be Solved by Prior Art and Invention]

2. Description of the Related Art In recent years, a panel construction method has been widely used in which walls, floors, roofs, etc. are constructed using panels. In such a house, the size of each part of the house is determined as an integral multiple of the module, which is a reference size set in the range of about 90 to 100 cm.

On the other hand, depending on the shape of the site where the house is built, the total length in the direction of the wife, which is perpendicular to the ridge direction, is an odd multiple of the module,
For example, there are cases where it is unavoidable to set 7 times or 9 times. Even in such a house, roof beams that connect the roof beams in the girth direction along the perimeter of the outdoor wall of the house in the direction parallel to the ridge are based on the standardized specifications, and are separated by an integral multiple of the module from the outer wall. It is handed over. Therefore, when the length in the gable direction is an odd number, the roof beam does not exist at the position of the central ridge.

Even in such a case, the ridge must be provided in the center between the outer walls because of the aesthetic appearance of the roof.

However, conventionally, such a roof in a house having an odd-numbered length in the end direction has a ridge truss and a truss in the end direction perpendicular to the ridge truss prepared in advance, and these roofs around the outer wall. The roof was formed by straddling the beams. Therefore, the roof beams in the central part, such as the roof beams connecting the surrounding roof beams at the integral multiple position of the module in the direction of the ridge, are not fully utilized for the formation of the roof truss, and as a result, each truss is large. Since strength is required, a large size member is used for each truss, resulting in increased weight, poor workability, and increased cost.

It is an object of the present invention to provide a roof structure for a house that can form a strong house structure by utilizing a roof beam of an under roof structure.

[Means for solving the problem]

The present invention is directed to a girder outer roof beam that is constructed based on a standard multiple of a module, extends in the ridge direction and extends along the outer wall of the house, and separates an odd multiple of the module, and connects both ends of the outer girder beam to the outer wall of the house. A gable outer roof beam that extends along with the girder outer roof beam, and a girder inner roof beam that is closer to the center that connects the girder outer roof beams at a position close to the center that is an integer multiple of the module from one of the girder outer roof beams, and a girder. A house which forms a rooftop structure using an under-roofing structure including an inner roof girder beam closer to the center, which connects the outer girder roof beams between the outer girder beams on one side with an integer multiple of the module In the middle of the girder outer roof beam, a horizontal lower chord member whose end is supported by the gable outer roof beam, a ridge member that passes through the roof ridge, and a pendant hanging from both ends of this ridge member. And a vertical member connected to the lower chord member A truss is arranged and the lower chord member and the girder inner roof beam near the center are bolted at one end to the lower chord member near the lower end of the vertical member and near the center near the gable outer roof beam. Of the girder inner roof beam, the other end of which is bolted, and one end of the vertical strut near the lower end of the vertical member, which is bolted at one end to the lower chord member and is close to the center in the gable inner roof The roof structure of a house is characterized in that it is connected to a girder-inward roof beam near the center near the beam by means of a fired material, the other end of which is bolted.

[Action]

The size of each part of the house is determined based on the multiple of the module, which is the standard size of the building. In addition, girder outer roof beams extending along the outer wall of the house in the ridge direction parallel to the ridge part separate the modules by an odd multiple. Therefore, the gable outer roof beam connecting the both ends has an odd length multiple of the module. Further, between the girder outer roof beams, a girder inner roof beam near the center is bridged, which is connected to one girder outer roof beam at a position close to the center, which is an integral multiple of the module.

A ridge truss passing through the ridge is bridged in the ridge direction in the middle of the girder-direction outer roof beams to the under-roof structure. Therefore, as described above, since there is an odd multiple of the module between the girder outer roof beams, there is no roof beam below the ridge truss. In the present invention, between the horizontal lower chord member of this ridge truss and the girder inner beam closer to the center, the flint extending from the girder inner roof beam closer to the center and from the girder inner roof beam closer to the center to the lower chord member. Timbers and fire striking materials extending from the girder inward roof beams near the center to the girder inward roof beams to the lower chords. As a result, the horizontal load acting on the roof is transmitted to the girder inward roof beams near the center through a pair of fluffing materials arranged in a plane C shape to the ridge truss and the interior of the house, and the load acting on the ridge truss is transferred. By applying the load to the under roof assembly, the force acting on the ridge truss can be reduced, the rigidity of the entire roof assembly can be improved, the ridge truss members can be downsized, and the cost can be reduced.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is an overall layout diagram schematically showing each member of the entire shed assembly, in which each member is usually 90-
It is determined based on the multiple of the module, which is the standard size of the house set in the range of 100 cm. In the roof structure of the house of the present invention, when the ridge truss 3 is bridged over the under-roof group 2, the flint 4 is adopted. Further, in the present embodiment, a connecting fitting 5 that joins the ridge truss 3 and a truss 6 in a gable direction perpendicular to the ridge truss 3 are used.

The under roof assembly 2 extends in the ridge direction parallel to the ridge A and along the outer wall of the house, and is arranged at an odd multiple of the module, for example, 7 multiples, to the girder outer roof beams 10, 10.
And girder outer roof beams 12, 12 that extend along the outer wall of the house in the girder direction at right angles to the ridge direction and are seven times as long as the module that connects both ends of the girder outer roof beams 10, 10. Under roof assembly 2
Is connected to the girder outer roof beams 12, 12 between the girder outer roof beams 10, 10 and is connected to the girder outer roof beams 12, 12, for example, on the right side in FIG. There is a girder inner roof beam 14 near the center that is connected to the girder outer roof beam 10 at a position close to the center that is three times the module away from the other girder outer roof beam 10,
Further, the girder outer roof beams 10 and 10 are located at a position close to the center, which is an integer multiple of the module from one gable outer roof beam 12, and in this embodiment, the girder outer roof beams 10 are even multiples of the module, for example, 10 The girder inner roof beam 16 which connects the girder outer roof beams 10 and 10 at the center of the girder inner roof beam 16
Are arranged.

Each roof beam 10, 12, 14, 16 has an I-shaped cross-section with upper and lower horizontal flanges 20, 20 joined by a web 21 as shown in FIGS. 2, 3, 5 and 6. Made of steel,
Further, columns 22 made of square steel pipes are arranged at the respective corners and connecting portions. The roof beams 10, 12, 14, and 16 have the same height and are interrupted by the pillars 22.

The ridge truss 3 is, as described above, a girder outer roof beam 1
It is bridged at an intermediate position between 0 and 10, that is, at the center point in the longitudinal direction of the gable-side outer roof beam 12, and forms a hip roof.

As shown in FIG. 2, the ridge truss 3 includes a long lower chord member 30 made of channel steel with the groove portion facing upward, and a ridge member 31 extending along the ridge portion A. In addition, the ridge truss 3 includes the lower chord member 30 and the ridge member 31, and vertical members 32 and 33 hanging from the center and both ends of the ridge member 31 and connected to the lower chord member 30, both ends of the ridge member 31 and both ends of the lower chord member 30. By joining the diagonal member 34 that joins the diagonal member 34, the truss member 35A that joins the diagonal member 34 and the lower end of the vertical member 33, and the truss members 35B and 35B that join the vertical members 32 and 33 and the ridge member 31 in advance, the trapezoid Forming the truss. The ridge truss 3 is
The lower chord member 30, the end portion of the diagonal member 34 is provided with a joint plate 36, and on the upper surface of the ridge member 31, above the vertical members 32, 33,
A joint metal fitting 37 including two rising pieces is provided. Further, the ridge truss 3 is bridged between the gable outer roof beams 12 and 12 by bolting the joint plate 36 to a mounting bracket 25 fixed to the central position of the gable outer roof beams 12. By straddling, a gap g having a height H is formed between the lower chord member 30 and the girder inner roof beam 14 near the center.

Further, the ridge truss 3 has a lower surface of the lower chord member 30 and a vertical member.
Below the 33, a rectangular mounting plate 38 shown in FIGS. 2, 4, and 6 is bolted.

Further, the mounting plate 38 is used between the lower chord member 30 of the ridge truss 3 and the girder inner roof beam 14 near the center to bridge the hitting member 4.

As shown in detail in FIGS. 4 and 6 and a part thereof in FIG. 2, the batted material 4 has a height smaller than the height H of the gap g by the thickness of the mounting plate 38. The channel steel is used. Further, the flint 4 is attached to the lower surface of the mounting plate 38 at one end thereof by using the bolt for bolting the mounting plate 38 to the lower chord member 30 of the ridge truss 3. Therefore, one end of the flint 4 is
A lower chord member 30 near the lower end of the vertical member 33 via the mounting plate 38.
Bolted to. Further, the batted material 4 includes two pairs of batted material 4A and 4B extending from the mounting plate 38 in a C shape, and one batted material 4A.
The other end of the above, on the upper surface of the girder inner roof beam 14 near the center,
It is bolted in the vicinity of the connection end with the gable-direction outer roof beam 12. Further, the other end of each of the other fired materials 4B has an upper surface of the girder-direction inner roof beam 14 closer to the center and a gable-direction inner roof beam 16 closer to the center.
Each is bolted near the connection point with. As a result, the batting materials 4A, 4A, 4B, and 4B diagonally connect the lower surface of the lower chord member 30 of the ridge truss 3 and the upper surface of the girder inner roof beam 14 near the center in a zigzag manner.

As a result, the horizontal force acting on the ridge truss 3 can be effectively transmitted to the girder inner roof beams 14 near the center. Therefore, the force acting on the ridge truss 3 is reduced, the member strength is reduced, and the cost is reduced. Also, the rigidity of the small roof can be improved as a whole.

Further, in this embodiment, the ridge truss 3 is bolted to the lower chord member 30 by a connecting fitting 5 bolted to the inner roof beam 16 in the gaze direction near the center, and the connecting fitting 5 is used to ridge the truss. The lower chord member 61 of the truss 6 at right angles to 3 and in the center of the building material 31 is bolted.

As shown in detail in FIGS. 5 and 6 and shown in FIGS. 2 to 4, the connecting fitting 5 is provided on the upper surface of a long base 51 made of an I-shaped steel having the same height H as the base 51. Two pairs of standing pieces 52, 52 extending in the length direction are set up. In this embodiment, the standing piece 52 uses two parallel pieces of a U-shaped metal fitting, and
Reinforcing plates 53, 53 that connect the upper and lower flanges are provided on the center of the plate.

The base portion 51 is bolted with the center of the upper portion of the inner roof beam 16 near the center located below the ridge truss 3. As a result, the lower chord member 30 of the ridge truss 3 abuts on the upper surface of the base portion 51 and is bolted using the through hole provided in the upper flange of the base portion 51.

Also, by bolting the standing pieces 52, 52, the lower chord member 30
Will be erected on both sides, and the lower chord member 61 of the girth direction truss 6 shown in FIG. The gable-direction truss 6 connects the lower chord member 61, the side frame member 62 of the roof panel P, a part of which is shown in FIG. 6 and which forms the roof base, and the side frame member 62 and the lower chord member 61 at an intermediate position. Vertical member 63, and the lower end of the vertical member 63 and the side frame member 62
Of truss material 64 that joins the upper ends of the above, and is formed as an assembled truss that assembles them by field construction.

The lower chord member 61 is made of channel steel with the groove portion facing upward, and one end of the lower chord member 61 is inserted between the standing pieces 52, 52 of the connecting fitting 5 and bolted as shown in FIG. Fixed by. The other end of the lower chord member 61 is bolted by a mounting member 26 fixed to the upper surface of the girder outer roof beam 10. Also, one end of the lower chord member 61 is placed on the base portion 51, so that the gap g of the height H is also provided between the lower surface of the lower chord member 61 and the upper surface of the inner roof beam 16 toward the center. Will be separated.

The roof panel P is a panel body in which a field board 66 is attached to the upper surface of a frame structure in which both ends of the side frame members 62, 62 are joined by upper and lower frame members 65. In addition, the roof panels P are rectangular roof panels P1 and P1 arranged on both sides of the roof-side inner roof beam 16 near the center and above them in FIG. 1, and triangular roof panels P2 and P2 on both sides thereof. In addition to that, another triangular roof panel P3 is arranged on the wife side.

The side frame member 62 of the roof panel P is made of channel steel with the groove portion facing inward, and its vertical web 62a is provided on the upper surface of the ridge member 31 of the ridge truss 3 to raise the joining bracket 37. Bolt on each side. At the lower end, the web 62a is bolted to the fitting 26. The lower ends of the vertical member 63 and the truss member 64 are bolted to the lower chord member 61, and the upper ends are between the webs 62a, 62a of the side frame members 62, 62 facing the roof panel P and the web 62.
Bolt to a and 62a. As a result, the truss 6 extending in the end direction is assembled.

In this way, by using the connecting fitting 5, one end of the lower chord member 61 of the ridge truss 3 and the truss 6 in the girth direction perpendicular to the ridge truss 3 are also bolted. As a result, the vertical load acting on the ridge truss 3 is carried by the girder inner roof beam 16 near the center. Further, since the connecting fitting 5 is provided with the base portion 51, the strength of the roof truss is increased and at the same time, the members of the ridge truss 3 and the truss 6 in the end direction are miniaturized, and the strength of the roof truss can be improved. Also, by connecting the lower chord member 61 of the truss 6 in the endwise direction with the connecting metal fitting 5 by bolting,
In addition to improving the workability, the load acting on the truss 6 is also applied to the under roof assembly 2 through the inner-direction roof beam 16 near the center.
Similarly, the strength of the rooftop structure can be improved and the workability can be improved.

At both ends of the ridge member 31, lower chord members 61 of the trusses 6A, 6A extending in a direction perpendicular to the ridge truss 3 are bolted at one end to the mounting plate 38, as shown on the left side of FIGS. It

〔The invention's effect〕

As described above, the roof structure of the house of the present invention includes the ridge truss,
The roof girder in the girder direction near the center, which is far from the ridge truss, is bolted at one end to the lower chords near the lower ends of the vertical members on both sides of the ridge truss, and inside the girder direction near the center near the outer roof girder. The other end of the roof beam is bolted at the other end, and the other end is bolted to the lower chord in line with one end of this fired product and the girder inward roof beam near the center near the girder inward roof beam near the center. The ends are joined by a bolting material that is bolted. Therefore, the horizontal load that acts on the roof is transmitted in a well-balanced manner to the girder-inward roof beams near the center through the building truss, the center of the house, and the flint that extends to the gable.
The acting force acting on the ridge truss can be reduced, the rigidity of the entire roof truss can be improved, and the members of the ridge truss can be miniaturized, and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view schematically showing an embodiment of the present invention, and FIG.
The figure is a front view exemplifying a ridge truss, FIG. 3 is a front view exemplifying a truss in a gable direction, and FIG. 4 is a connecting metal fitting and a hitting material.
FIG. 5 is a partially sectional plan view showing the attachment state of the connecting fitting, FIG. 5 is a partially sectional front view showing the attachment state of the connecting fitting, and FIG. 6 is an exploded perspective view illustrating an essential part of the present invention. 2 …… Under the roof assembly, 3 …… Building truss, 4,4A, 4B …… Burning material, 5 …… Connecting metal fittings, 6 …… Girth direction truss, 10 …… Girder direction outer roof beam, 12 …… Wife Direction outside roof beams, 14 …… Inner girder roof beams near the center, 16 …… Inner girder roof beams near the center, 30 …… Lower chord material, 31 …… Building material, 33 …… Vertical material, 51 …… Base, 52 …… standing piece, 61 …… lower chord material.

Claims (1)

[Claims] 1. A girder outer roof beam that is constructed on the basis of a multiple of a module, which is a standard dimension, extends in the ridge direction and extends along the outer wall of the house, and separates an odd multiple of the module; A gable outer roof beam extending along the outer wall, and a girder inner roof beam that is closer to the center that separates the girder outer roof beams between the girder outer roof beams at a position close to the center that is an integral multiple of the module, A roof truss is formed using an under-roofing structure including a girder inner roof beam that connects the girder outer roof beams between the girder outer roof beams at a position close to the center that is an integer multiple of the module In the roof structure of the house, in the middle of the girder outer roof beam, a horizontal lower chord member whose end is supported by a gable outer roof beam, a ridge material that passes through the roof ridge, and both ends of this ridge material And a vertical member that hangs down and is connected to the lower chord member. While arranging a ridge truss, one end of the lower chord member and the girder inner roof beam near the center are bolted to the lower chord member in the vicinity of the lower end of the vertical member and centered in the vicinity of the gable outer roof beam. In the girder direction closer to the girder, the other end is bolted to the roof beam, and in the vicinity of the lower end of the vertical member, one end is bolted to the lower chord member in line with one end of the striking member A roof structure for a house, characterized in that it is connected to a girder inward roof beam near the center near the roof beam by means of a fired material that is bolted at the other end.