JP2535656B2 - Building structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a building structure that constitutes a roof frame structure on a framed wall structure, and in particular, the roof frame has a slope between beams and a girder that crosses the roof surface. The present invention relates to a building structure having a structure for forming a roof portion including both directionally sloped roof surfaces.

[Prior Art] As roof combinations having both a roof surface having a slope in the beam direction and a roof surface having a girder direction slope, there are parquet roofs, half-gable roofs, and truss roofs. The hut structure, which is the framework for constructing the roof of
It is adapted to each roof type.

For example, in the conventional construction method, a structure is used in which a shed beam or a rafter beam is bundled to support upper structural members such as purlins, purlins and rafters.

For example, FIG. 9 shows an example of a conventional shed structure with a purlin type roof.

In this example, a beam 16 is installed between eave girders (not shown) on both sides extending in the direction of the girder, and a plurality of bundles 18 are erected on the beam 16. Then, a purlin 20 is erected on it, and a true bundle 22 is erected on it. A purlin 24 is installed on the uppermost stage above the true bundle 22.

Further, in order to obtain the strength of the hut structure, braces 26 and the like referred to as steady rests are provided between the land beams 16 and between the purlins 20, respectively.

In the figure, the chain line 300 shows the outline of the entrance-style roof that is formed on the basis of this hut structure.
30 is a gable wall portion, a roof surface portion having a slope in the direction of girder 31
Is the suburbs.

[Problems to be Solved by the Invention] However, in the conventional roof structure corresponding to each roof type, the inner space of the roof portion formed on the roof structure is partitioned by the bundle 18, the purlin 20, and the true bundle 22. The
And space is occupied. That is, roofing panels, beams, bundles, etc. run vertically and horizontally in the attic, hindering the effective use of that space.

Further, in the case of constructing such a cottage structure by the conventional construction method, there is a problem that its structure becomes complicated, high construction technology and a lot of man-hours are required, and the production efficiency is low and the cost is high.

OBJECT OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a simple structure for a shed structure corresponding to various roof types constructed on a framed wall structure. In addition, it is to provide a building structure having a structure that can effectively use the internal space.

[Means for Solving the Problem] In order to achieve the above object, the building structure according to the invention of claim (1) has a eaves girder provided on the outer peripheral upper part of the frame and a predetermined interval from the eaves girder. And a vent beam that is provided between the eaves and the bundle, and a bundle that is provided with an opening and that extends in parallel with the eaves and the bundle that is provided above the spread. And a roof portion that is supported by the bent beam and that includes a first roof surface having a slope in a predetermined direction and a second roof surface that intersects with the first roof surface and has a slope in a different direction. The horizontal portion extending along a direction orthogonal to the slope of the first roof surface and one end of the horizontal portion are joined together at a predetermined angle in advance,
An inclined portion that inclines along the slope of the roof surface, and both end sides sandwiching the joint portion between the horizontal portion and the inclined portion are supported by the eaves barge and the bundle, and the joint portion. Is not provided with a bundling member for supporting from below, and an attic space is secured below the joint portion of the vent beam.

The invention according to claim (2) is based on claim (1).
The joining portion is provided with a reinforcing member that reinforces the joining portion.

In the invention according to claim (3), according to claim (1) or claim (2), at least a plurality of the vent beams are arranged at a predetermined interval, and the vent beams are arranged in a longitudinal direction of the vent beams. It is characterized by being connected by orthogonal purlin beams.

[Operation] According to the building structure having the above configuration, various roof types are provided by a bent beam having a horizontal portion and an inclined portion, which is bent at an intermediate portion thereof, and a bundle supporting the bent beam. It is possible to construct a hut structure corresponding to.

That is, for example, between one eaves girder extending in the beam direction and a bundle provided in a bedding erected on eave girders on both sides extending in the girder direction, for example, the bent beam extends in the girder direction. Are arranged. The horizontal portion and the inclined portion of the bent beam thus arranged respectively support the first and second roof surfaces having different roof slopes. A structure corresponding to a roof type having a roof surface inclined in two different directions by bending the horizontal portion and the bent portion of the bent beam so as to be along a roof surface having an inclination in different directions. The structure can be easily obtained.
Such a roof type is, for example, the above-mentioned ridged-roof roof or an entrance-style roof.

The bent beam is supported by the bundle which is bent upside down at both end sides of the joint, and does not have a bundle member that supports the bent beam from below at the joint. Since the space is secured, the number of members and the number of processes can be reduced, and a sufficiently wide space is secured inside the roof, so that the so-called attic space can be effectively used. .

Moreover, in the invention of the second aspect, the mechanical strength of the bent beam can be improved by reinforcing the joint portion.

Further, in the invention according to claim 3, since the plurality of vent beams are connected to each other by the purlin beams, the installation state of the vent beams can be further reinforced.

[Embodiment] A preferred embodiment of the present invention will be described below with reference to the drawings.

First Embodiment FIG. 1 shows an embodiment in the case where a shed structure for a gathering roof using bent beams is constructed on a framed wall structure.

The framed wall structure 32 is composed of pillars 36 erected on the base 34, studs 38 erected between these pillars, eaves 40 attached to each pillar, and laid 42. There is. Since the pillars 36 need to fulfill the function of supporting the roof structure, they are thicker than the studs 38 for supplementing the space between the pillars.

Next, a hut structure for a parquet roof formed on the framed wall structure 32 will be described.

In this embodiment, three bent beams 44a, 44b and 44c are installed. Further, in this embodiment, the bundles 46a, 46b and 46c standing on the laid 42 are used as a support structure for supporting these bent beams.

In other words, each bent beam 44 has a framed wall structure.
It is erected between the eaves beam 40a extending in the beam direction of 32 and the bundle 46, and supports the roof part (not shown) of the parcel ridge constructed on the roof structure.

2 (A) and 2 (B) are explanatory views of the vent beam 44 used in this embodiment. FIG. 2 (A) is a front view and FIG. 2 (B) is a plan view. .

The bent beam 44 joins the two beam bodies, that is, one end surface of the horizontal portion 45a and the inclined portion 45b at a predetermined angle, and holds the joining angle. A certain gusset 48 is fixedly formed. In this embodiment, the beam material is made of wood. In this case, the gusset 48 is made of plywood and is fixed by nails 49 and an adhesive, for example.

As described above, the structure of the bent beam is extremely simple, and by constructing the bent beam, the roof can be easily assembled, and the construction process can be simplified and the number of processes can be reduced.

Next, based on FIGS. 3A to 3C, the bent beam 44
The mounting will be described.

First, FIG. 3A shows a mounting state of the bent beam 44 on the eaves 40a side. The inclined side end of the bent beam 44 is engaged with the eaves bar 40a. This engagement position is a position where the pillar 36 is installed in order to secure installation strength. The bent beam 44 and the eaves bar 40a are connected to each other by attaching the battledore bolt 50a to the vent beam 44 side, the bolt portion of the battledore bolt 50a is passed through the eaves 40a, and the notch 54 portion provided in the eaves 40a. The nut 52a is used for fastening.

Next, FIG. 3B shows a mounting state of the bent beams 44 on the bundle 46 side.

The ends of the bent beams 44 are placed on a bundle 46, where the purlins 60
Alternatively, it is connected to the purlin 62 and the bundle 46. That is, the end portion of the bent beam 44 is penetrated by the bolt portion of the battledore bolt 50b attached to the bundle 46, and the notch 5
The bolt tips protruding from 8 are joined by fastening with a nut 52b. On the other hand, the tip of the purlin 60 also bundles 46
And bent beam 4 which are joined by battledore bolts 50b
The 4 is connected to the purlin 60 by a gusset plate 59. As a result, the bundle 46, the bent beam 44, and the purlin 60 are connected together.

In order to reinforce the installation state of each vent beam 44, a purlin 64 which is a purlin beam is installed between each of the vent beams 44a and the vent beams 44b and 44c. FIG. 6C is a cross-sectional view showing the connected state of the purlin 64 and the vent beam 44 by taking the vent beam 44b as an example.

In this connection, the battledore bolt 50c is attached to the purlin 64 side, the bolt portion of the battledore bolt 50c is penetrated into the gusset 48b and the main body of the vent beam 44b, and the tip is fastened with the nut 52c to be joined. ing.

As described above, each bent beam 44 is erected between the eaves 40a side and the bundle 46 side, and the installed state thereof is reinforced by the purlin 64.

 Next, the bending angle of the bent beam 44 will be described.

First, as shown in FIG. 1, one side (horizontal part) of the bent beam 44a is installed horizontally with respect to the floor and is connected to the purlin 60, and the direction of the beams of the roof part forming the parquet roof is measured. It functions as a purlin on the first roof with a slope of. Then, the inclined portion which is the other side has the same inclination as that of the second roof surface having the inclination in the girder direction of the parquet roof installed thereon. That is, the bent angle of the horizontal portion and the inclined portion of the bent beam 44a is the same as the inclined angle of the second roof surface of the girder direction gradient, and the bent beam 44a has the horizontal portion and the inclined portion of the first roof, respectively. The surface and the second roof surface respectively.

Further, the horizontal portions, which are one side of the bent beams 44b and 44c, are connected to the purlins 62, respectively, and serve as a purlin for the first roof surface having a slope in the beam-to-beam direction. Therefore,
It is located at a position lower than the horizontal portion of the bent beam 44a according to the inclination angle of the roof surface.

Then, the inclined portion which is the other side has an inclination angle along the second roof surface having a slope in the girder direction. That is, the bending angle is the same as that of the bent beam 44a. The difference from the bent beam 44a is that the length of the inclined portion which is the other side is shorter than that of the bent beam 44a.

As a result of the roof structure constituted by the three bent beams as described above, the upper part of the line connecting the bent portion vertex P1 of the bent beam 44a and the bent portion vertexes P2 and P3 of the bent beams 44b and 44c has a beam-to-beam gradient. It is an intersection line between the first roof surface and the second roof surface having a girder direction gradient.

As described above, in this embodiment, since there is no beam member running vertically and horizontally or a joint member for supporting the joint portion of the bent beam from below in the roof portion between the eaves 40a and the spread 42, that portion is not provided. It is possible to effectively use the space, that is, the attic space. Also, the construction work is easy.

In the embodiment shown in FIG. 1, the case where the wooden bent beam 44 is used has been described, but the material of the bent beam 44 is
The vent beam is not limited to wood, but may be a steel bent beam, for example.

Fig. 4 shows a steel bent beam 66. Fig. 4 (A) shows an example in which it is attached to a wooden frame, and Fig. 4 (B) shows an example in which it is attached to a steel frame. Shows. The steel bent beam 66 can be manufactured by joining two beam bodies at a predetermined angle by welding or bolting. Then, as shown in the figure, the bent portion is reinforced by attaching a triangular reinforcing plate 68 inside the bent portion.

Further, FIG. 5 shows an example in which the bent beam 70 is formed by using a so-called curved laminated material. This is one in which curved plate bodies are laminated to form a bent portion as one body. Then, the upper surface side is formed by forming a predetermined angle corresponding to the inclination angle of the roof portion. According to the bent beam 70 using such a curved laminated member, the bent beam can be easily configured without using a reinforcing member such as a gusset, and the structure becomes simpler.

Second Embodiment Next, as a second embodiment, a structure in which a roof girder for a half gable roof is constructed by using a bent beam 44 on a frame structure 32 for a frame will be described with reference to FIG.

The same elements as those in the embodiment of FIG. 1 are designated by the same reference numerals.

In this roof gabled roof structure, one bent beam 44d and two straight beams 72a and 72b are used.

That is, unlike the case of the parquet roof, for the beams on both sides of the three beams, there is no roof part corresponding to the inclined part as shown in FIG. 1, so it is not necessary to use bent beams. Instead, a straight beam 72 is used. The attachment of the bent beam 44d is performed by erection between the bundle 46 and the eaves girder 74, as in the case of the parquet roof. And the characteristics of the half gable roof are:
That is, the position of the eaves girder 74 is formed by using the bundle 76 at a portion higher than the position of the usual eaves girder 40a. As a result, a wall surface perpendicular to the ground can be formed in that part, and the shape is different from the roof of the parquet building.

Even in such a half gable roof, by using the bent beam 44d, it is not necessary to provide another member such as a beam or a bundle between the eaves bar 74 and the bundle 46 as the support structure. That is, it is possible to secure a wide space without providing another supporting member inside the bent portion that transitions from the horizontal portion of the bent beam 44d to the inclined portion for forming the second roof surface having the girder slope. Has become.

Third Embodiment Next, FIG. 7 shows an embodiment in the case of constructing a shed assembly with a purlin type roof on the frame structure 32.

The same elements as those in the embodiment of FIG. 1 are designated by the same reference numerals.

In this embodiment, three vent beams 80a, 80b, 80c are used as the vent beams for the roof frame. The bent beam 80a located at the center is 2 mm as shown in FIG. 8 (A).
It is composed of two beam bodies 82a and 82b and a gusset 48. However, a special joining state is adopted so that the wife portion 30 and the entrance purlin portion 31, which are the features of the entrance purlin roof, can be formed.

That is, the beam bodies 82a and 82b are not joined to each other at one end, but the end portions of the beam body 82b are joined to the side portions of the beam body 82a at a predetermined angle. Then, a gusset 48 is fixed to reinforce the joint portion having the predetermined angle and maintain the bending angle. Further, the end portion 30 is configured by the portion 88 protruding from the bent portion of the beam body 82a.

In addition, the bent beams 8 arranged on both sides of the bent beam 80a
As shown in FIG. 8 (B), 0b and 80c have a structure in which one end of each of the two beam bodies is joined. The bent portions of the bent beams 80b and 80c are
It is bent so as to extend along the purlin 31.

As described above, the bent beams 80a, 80b, 80c and the bent beams 8
The projecting portion 88 of 0a forms a shed structure for forming an entrance-type roof. Therefore, as in the case of the parquet roof and the half gabled roof, the portion where the slope of the roof surface changes can be supported by the bent portion of the bent beam, so that other supporting members such as beams and bundles at that portion can be supported. It is not necessary and the space inside the roof can be used widely.

The structure of the present invention is not limited to the above embodiment, and can be applied to various modified roofs having the first roof surface and the second roof surface. The method of fastening the bent beam can take various forms.

[Effects of the Invention] As described above, according to the building structure of the present invention, the bent beams, the bundle supporting the bent beams, and the eaves girder can be easily applied to various roof types formed on the framed wall structure. Can be adapted to. As a result, the number of supporting members can be reduced without using a complicated building structure corresponding to the difference in the slope of the roof surface, and the building process can be simplified. In addition, the reduction in the number of members allows the available attic space inside the roof to be expanded, which can contribute to the effective use of the interior space of the building.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment in which the building structure of the present invention is applied to a building structure having a parquet roof, and FIGS. 2 (A) and 2 (B) are vent beams used in the embodiment. Explanatory drawing, FIG. 3 (A), (B) and (C) are explanatory drawings explaining the attachment state of the vent beam used in the Example, and FIG. 4 (A) and (B) are of the steel bent beam. Explanatory drawing, FIG. 5 is an explanatory view of a bent beam using curved laminated wood, and FIG. 6 is a perspective view showing a second embodiment in which the building structure of the present invention is used in a building structure having a half gable roof, FIG. 7 is a perspective view of a third embodiment when the present invention is also applied to a building structure having a purlin type roof, and FIGS. 8 (A) and 8 (B) show the vent beam used in the embodiment of FIG. Explanatory drawing, FIG. 9 is explanatory drawing which shows an example of the conventional roof framing structure comprised on the frame | casing wall structure. 32 …… frame structure, 40 …… raised, 42 …… layed, 44,
66, 70, 80 …… bent beam, 46 …… bundle, 48 …… gazette,
60 …… Purlin, 62, 64 …… Purlin, 68 …… Reinforcement plate.

Claims (3)

(57) [Claims] 1. An eaves girder provided on an outer peripheral upper portion of a frame, a eaves provided at a predetermined interval from the eaves girder, and a bedding extending parallel to the eaves girder, and above the eaves A projecting bundle, a vent beam spanned between the eaves beam and the bundle, and a first beam supported by the vent beam and having a gradient in a predetermined direction
The roof surface and the second intersection that intersects with the roof surface and has slopes in different directions
A roof part including a roof surface, and the bent beam is joined in advance to a horizontal portion extending along a direction orthogonal to the slope of the first roof surface and one end of the horizontal portion at a predetermined angle. And an inclined portion that inclines along the slope of the second roof surface, and is supported by the eaves bar and the bundle on both end sides sandwiching the joint portion between the horizontal portion and the inclined portion. The building structure is characterized in that it does not have a bundle member that supports the joint portion from below and secures an attic space below the joint portion of the bent beam. 2. The building structure according to claim 1, wherein the joint portion is provided with a reinforcing member that reinforces the joint portion. 3. The bent beam according to claim 1, wherein at least a plurality of the bent beams are arranged at a predetermined interval, and the bent beams are purlin beams orthogonal to a longitudinal direction of the bent beams. An architectural structure characterized by being connected.