JPH0737736B2 - Roof structure - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a roof structure, and more specifically, to a roof member or a plurality of roof rafter members disposed on the lower ground as main roof parts. On each roof rafter member including each field member, with the above-mentioned field rafter member laid and supported between these roof rafter members and used as a constituent material, and with a thatched drainage plate member laid on each field member. In addition, in the roof structure in which the individual roof members are connected to each other in an articulated manner, and the roof members are held and held by the holding member so that rainwater and the like can be effectively drained from the connection portion of each roof member. This relates to the improvement of the roof structure.

[Conventional technology]

Conventionally, in the case of a roof structure of a building structure, in a normal case, for example, as shown in FIGS. 5 (a) and 5 (b), a predetermined roof slope is given in a structure skeleton. For each purlin member (1) of the assembled roof assembled structure, from the ridge side to the eaves side, a plurality of roof rafter members (2), in this case, left and right flange parts on both sides at the bottom (4) and (4) are expanded and formed, and the roof rafter member (2) is opened at a downward direction and has a mounting surface (5) formed on the upper surface thereof at predetermined intervals. , The roof rafter members (2) which are fixed to each other by using the left and right flanges (4) and (4) by the mounting screws (6) and (6) and which are adjacent to each other. Between),
Similarly, by using the left and right flange portions (4), (4), a field member (7) having a thickness approximately equal to the height of the main body portion (3) is placed and arranged. Further, on each roof rafter member (2) including on each of these field members (7), each required roof member (9) is provided via a lowering material (8) such as asphalt roofing or asphalt felt.
Are held by a holding member (10) such as a hanger, and the holding member (10) is fixedly attached by a mounting screw (6) while being connected and engaged with each other to raise the roof structure in this manner. Is configured.

Also, the applicant of the present invention has already implemented a number of systematic roof structures of this type proposed by the present inventor. , Using a plurality of each roof rafter member, which is inserted at a predetermined interval from the ridge side to the eaves side, as the main constituent material of the roof part, while arranging and supporting the field member between each roof rafter member, and each said field On each roof rafter member including the member,
There is a roof structure in which individual roof members are connected and engaged, and the roof members are held by a holding member.

[Problems to be Solved by the Invention]

By the way, in the case of the roof structure configured as described above, for example, in a special environment in which the connecting engagement portion of the roof member itself is flooded, water leakage to the inner side of the roof construction structure is not always required. There is a reality that can not be prevented.

That is, as a specific situation of this type of water leakage, for example, in the case of the conventional configuration shown in FIGS. 5 (a) and 5 (b) described above, the interconnecting engaging portions of the respective roof members (9), Also, the water is most likely to be flooded from the holding portion by the holding member (10), and the flooded water passes through the holding member (10) that holds the connecting engagement portion and the roof rafter member (2 ) Surface, and flows down from the gap between the roof rafter member (2) and the field member (7) to the inside of the roof-assembled structure, and thus to the inside.

Here, as an example of a roof structure having a water leakage prevention measure under such a special environment, the present inventors have
For example, various improved inventions including JP-A-60-215963 are proposed.

The roof structure having a water leakage prevention function according to this already proposed is on a roof rafter member, a plurality of upper thatched roof members are concatenated and engaged, and the holding member holds and holds them to raise the surface of the roof. Under the drainage board on the field member between each roof rafter member, via the drainage space part formed including the arrangement space of the roof rafter member between the upper layer roof part and the said upper layer roof part. It is equipped with a lower layer waterproof part on the inner side where the members are laid, and in this case, a so-called double-roofed roof structure is constructed, and through the connecting engagement part of the upper thatched roof plate member in the upper layer roof part. The invading rainwater, snowmelt water, etc. are drained to the outside of the eaves from the lower roof drainage plate member surface including the drainage space.

However, even in the case of the roof structure according to the present inventor's proposal, when considering from the viewpoint of the limited roof structure specifications, the arrangement space of the roof rafter member between the upper layer roof part and the lower layer waterproof part is considered. In addition to the indispensable drainage space part, if there is infiltration of rainwater etc. from the mounting part of the holding member to the roof rafter member to the inside, a gap must be created between the adjacent lower thatch drain plate members. Therefore, there is a problem that the waterproof function is not always completely obtained.

On the other hand, in recent years, materials for roof members and their designs have been extremely diversified.
Conventionally, decorative roof tiles and natural slate that have been used only for makeup purposes as parapets of steel-frame building structures tend to be used as roof members of steel-frame building structures.

And, it is needless to say that these decorative roof tiles and roof members made of natural slate, etc. themselves have a rain-preventing function as the roof members, but they are not the same as the top roof in this kind of steel building structure. Under high altitude and strong wind conditions, the structure cannot provide sufficient rain protection, and it is effective and sufficient even when using the roof tile such as the decorative tile or natural slate. There is a demand for a proposal for a roof structure that can exert such a rain-preventing function.

The present invention aims to improve the conventional problems and to meet the demand, and the purpose thereof is to provide a complete water leakage prevention function in a roof structure using roof members made of various materials, particularly, It is an object of the invention to provide a roof rafter member itself and a roof structure of this kind that effectively obtains a complete water leakage prevention function between the roof rafter member and the field member.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the roof structure according to the present invention uses a plurality of roof rafter members as a main constituent material of the roof part, and arranges a field member between the roof rafter members, and on each field member. While laying down thatched drain board member,
In a roof structure in which a roof member is roofed on each roof rafter member including each of these field members, the roof rafter member has the roof member or a roof member holding member at the center of the upper surface along the longitudinal direction. Forming a mounting surface for mounting and fixing the holding member for, on both sides of the mounting surface, is bent downward to the drainage space side inside the rafter,
At least a drain groove is formed in the bottom of each required interval to open a drainage notch, and between the roof member and the field member, a thatched drainage plate member is laid, and folding pieces on both sides thereof are folded down. A portion is inserted into the drainage groove, and a drainage gutter having both side wall portions extended upward is provided inside the drainage space inside the rafter.

[Action]

Therefore, in the roof structure according to the present invention, the roof member or the holding member for holding the roof member can be fixedly attached to the mounting surface of the roof rafter member in which the drain gutter is installed, and the roof rafter members adjacent to each other can be fixed. With the field members arranged in between, fold down both sides of the bottom thatch drain plate member laid on each field member to both sides of the mounting surface to the drainage space side inside the rafter. By bending downward, by inserting a drainage notch at the bottom of each required interval into a drainage groove that opens, the water that enters the lower thatched drainage plate member surface is folded down into the drainage groove, Moreover, it can be drained to the outside by letting it flow into the drain trough from the drain notch.

〔Example〕

Examples of each part of the roof structure according to the present invention will be described below.
This will be described in detail with reference to FIGS. 1 to 4.

1 (a) and 1 (b) are sectional views showing a schematic structure of a roof structure according to a first embodiment of the present invention as seen from the front side, an enlarged sectional view of an essential part of the same as above, and FIG. 2 is a second embodiment. FIG. 5 is a cross-sectional view showing a schematic structure of a roof structure according to FIG. 5, viewed from the front side, each of which corresponds to FIG. 5 (a), and a cross-sectional view of the structure in each figure viewed from the side. Corresponds to FIG. 5 (b), and FIGS. 3 (a) and 3 (b) are sectional views seen from the front side showing a schematic structure of a roof structure according to a third embodiment of the present invention. A reference cross-sectional view seen from the side surface side of the same, FIG. 4 is a reference perspective view when the roof member is changed in the third embodiment.

Also in the configuration of the first embodiment shown in FIG. 1, the reference numeral (11) is a purlin member of a roof construction structure assembled so as to give a predetermined roof slope in the structure skeleton.
So-called C-type steel is assumed, but the material is not necessarily limited to this, and there is no problem even if it is a base such as ALC or RC. Further, (21) is a roof to which the first embodiment is applied, in which the purlin member (11) is inserted and fixed at predetermined intervals from the ridge side to the eaves side. The rafter member (31) is a drain gutter which is combined with the roof rafter member (21). Details of the roof rafter member (21) and the drain gutter (31) will be described later. Further, (12) has a thickness substantially equal to the height of the roof rafter member (21), and each field member disposed between the roof rafter members (21) in the same manner as above (41). ) Is a lowering drain plate member that is laid on the roof rafter member (21) including each field member (12) as described later, and (13) is held by a holding member (14) such as a hanging member. These are required roof members that are fixedly secured to the roof rafter member (21).

As the roof rafter member (21), as shown in FIGS. 1 (a) and (b), the roof rafter member (21) is placed on the purlin member (11) at both lower end portions along the longitudinal direction. The left and right flanges (23) and (23) to be fixed are provided, and the roof member (13) or the holding member (14) for holding the roof member is attached and fixed to the central portion of the upper surface. )
Further, both sides of the mounting surface (24) are bent downward to the drainage space (27) side inside the rafter, and the drainage notches (2
6) and (26) are opened to form drainage grooves (25) and (25), and insertion space portions (28) and (28) are formed in the outer wall surface, and at least the field member ( It is configured by providing a main body portion (22) set to be slightly higher than the thickness of 12).

Then, as the drain gutter (31) combined with the roof rafter member (21), the drain gutter (31) is fully installed inside the drain space (27) inside the roof rafter member (21) and extended above it. The left and right side wall parts (32), (32) are configured to face the insertion space parts (28), (28), and the lower thatch drain plate member (41) has the above-mentioned structure. While laid on each field member (12), the roof rafter member (2
In the drainage grooves (25) and (25) in 1), left and right folding pieces (42) and (42) that are inserted sufficiently deep from above are configured.

Regarding the roof rafter member (21), first, in the state where the drain gutter (31) is installed, first, the purlin member (11).
Place the flanges (23) and (23) on the required positions above,
Moreover, these flange portions (23) and (23) are appropriately fixed by mounting screws or the like. For the attachment and fixation, use anchor bolts if the base side is ALC, RC, etc.

Then, the field member (12) is placed and disposed between the left and right flange portions (23) and (23) of the adjacent roof rafter members (21), and each of these field members (12). ) Is laid on the upper surface of the lower roof drainage plate member (41) to cover it, and left and right folding pieces (42), (4)
2) The drainage ditch (25), (2 in the roof rafter member (21)
5) Insert it deeply into the inside from above.

After that, each roof member (13) required by a holding member (14) such as a hanging member is provided on each roof rafter member (21) including the thatching drainage plate member (41) on the field member (12). It is fixed on the mounting surface (24) and the required roof structure is raised.

Therefore, in the case of the configuration of the first embodiment, the left and right folding pieces (42) and (42) of the underwater drainage plate member (41) covering the field members (12) are covered with the roof. Rafter members (21)
Since they are inserted into the drainage grooves (25) and (25) of the above, as a result, each roof member (13) that is raised above these is removed by the lower thatch drainage plate member (41). Water that is to be insulated in a waterproof manner. Water that enters the underwater drainage plate member (41) passes through the folding piece portions (42) and (42) on both sides, and the drainage groove ( 25), (25) and reach the inside of the drainage gutter (31) through the drainage notches (26), (26), and the drainage gutter (31) can drain the water to the outside.

Further, the same applies to water intruding from the corresponding mounting portion of the holding member (14) that holds each roof member (13) and fixes it to the mounting surface (24) of the roof rafter member (21). And flows into the drain gutters (25) and (25) to reach the drain gutter (31), or directly flows through the screw holes into the drain gutter (31) to be drained. In this way, it is possible to reliably prevent water from entering the indoor side.

Next, the configuration of the second embodiment shown in FIG. 2 is the same as the configuration of the first embodiment, except that downward recessed groove portions (43) are provided on the underwater drain plate member (41) at required intervals. Then, each roof member (13) is raised up on the mounting surface (24) of each roof rafter member (21) and the ridge (44) between these concave groove portions (43). In this case, however, in accordance with the same drainage action as the configuration of the first embodiment, the water that enters from the roof member (13) side flows on each groove (43) and is drained to the outside. In addition, due to the presence of each groove (43) and the ridge (44), the lower thatch drain plate member (41)
In order to correct the distortion of itself, for example,
It is possible to effectively and appropriately promote the drainage function on a gentle slope.

Next, the configuration of the third embodiment shown in FIG. 3 is different from the configuration of the second embodiment in that the height of the mounting surface (24) at the central portion of the upper surface of the roof rafter member (21) is set high. In this case, as the roof member (13), a horizontal thatched roof plate member (13a) with a backup member (13b) interposed is raised, and in this case, the same as the second embodiment configuration. Not only has the above-mentioned action and effect, but also secures heat insulation and / or soundproofing between the side thatched roof plate member (13a) and the lower thatched drainage plate member (41), and at the same time, creates a drainage space. The internal space portion (51) can be formed.

Also, as indicated by the chain double-dashed line in the figure, each ridge portion of the underwater drainage plate member (41) is adjusted to the height of the mounting surface (24) of the roof rafter member (21). By setting the height of the (44), each of the ridges (44) concerned has the side roofing roof plate member (13a) or the backup member (13).
It serves as a support part of b) and can also support it effectively, and this enables stable support of the roof member (13).

Furthermore, in the configuration of the third embodiment shown in FIG.
As shown in FIG. 4, in addition to the roofing of the horizontal thatched roof plate member (13a) in FIG. 3, a roof tile member (13c) is also used.
It can also be used for thatching.

〔The invention's effect〕

As described above in detail, according to the present invention, a plurality of roof rafter members are used as main constituent members of the roof part, the field members are arranged between the roof rafter members, and the roof rafter members are placed on the field members. A roof member or a holding member for holding a roof member is attached and fixed in a roof structure in which a roof drain member is laid and a roof member is raised on each roof rafter member including each of these field members. A mounting surface is formed, and on both sides of the mounting surface are bent downward toward the drainage space inside the rafter member to form drainage grooves with drainage notches at least at the bottom of each required interval, and Between the roof member and the field member, lay the underwater drainage plate member, insert the folding pieces of both sides thereof into the drainage groove, and further, in the drainage space inside the rafter, both sides. Extend the wall upwards Because was constructed by interior drainage gutter,
A roof member or a holding member for holding the roof member can be attached and fixed to the mounting surface of the roof rafter member in which the drain gutter is installed, and a field member is arranged between the roof rafter members adjacent to each other. Then, fold down the both side parts of the underwater drain plate member laid on each field member,
By bending downward to the drainage space side inside the rafter on both sides of the mounting surface and inserting the drainage notch at the bottom of each required interval into the drainage groove, at the bottom thatch drainage plate member surface. It is possible to drain the invading water from the folded piece into the drainage channel and from the drainage notch into the drainage gutter to drain it to the outside.As a result, the infiltration of water into the indoor side is effective. It can be prevented.

Further, when the roof member is to be raised by setting the height of the mounting surface in the central portion of the upper surface of the roof rafter member to be high, heat insulation and / or soundproofing should be provided between the roof member and the underwater drainage plate member. It is possible to secure and form the internal space that will be the drainage space. Furthermore, set the height of the receiving and supporting part formed on the underwater drainage plate member according to the height of the mounting surface here. Thus, the roof member can be supported by the receiving and supporting part, and effective and stable support thereof can be achieved, and distortion of the underfloor drain plate member itself can be easily corrected, resulting in a gentle slope. It has excellent features such as that it can favorably promote the drainage function of.

[Brief description of drawings]

1 (a) and 1 (b) are sectional views showing a schematic structure of a roof structure according to a first embodiment of the present invention as seen from the front side, an enlarged sectional view of an essential part of the same as above, and FIG. 2 is a second embodiment. FIG. 5 is a cross-sectional view showing a schematic structure of a roof structure according to FIG. 5, viewed from the front side, each of which corresponds to FIG. 5 (a), and a cross-sectional view of the structure in each figure viewed from the side. Corresponds to FIG. 5 (b), and FIGS. 3 (a) and 3 (b) are sectional views seen from the front side showing a schematic structure of a roof structure according to a third embodiment of the present invention. , A reference cross-sectional view seen from the side surface side of the same, FIG. 4 is a reference perspective view when the roof member is changed in the third embodiment, and further, FIG. 5 (a), (b)
[Fig. 3] is a cross-sectional view showing a schematic structure of a roof structure according to a conventional example as seen from the front side and the side. (11) …… Purlin member, (12) …… Field material, (13) ……
Roof member, (13a) …… Side-roofing roof plate member, (13b) ……
Backup member, (13c) ... roof tile member, (14) ... holding member. (21) …… Roof rafters, (22) …… Main body, (23)…
… Flange part, (24) …… Mounting surface, (25) …… Drain groove, (26) …… Drain cutout part, (27) …… Drain space part,
(28) …… Insert space, (31) …… Drain gutter, (32) ……
Both side wall parts, (41) ...... lowering drainage plate member, (42) …… folding piece part, (43) …… concave groove part, (44) …… ridge part (supporting part), (51)… … Internal space.

Claims (5)

[Claims] 1. A plurality of roof rafter members are used as main constituent members of a roof portion, field members are arranged between the roof rafter members, and a lowering thatch drain board member is laid on each field member. , In a roof structure configured by roofing a roof member on each roof rafter member including each of these field members, the roof rafter member, in the central portion of the upper surface along the longitudinal direction,
A mounting surface for mounting and fixing the roof member or a holding member for holding the roof member is formed, and at both sides of the mounting surface are bent downward toward the drainage space inside the rafter member, and at least the required spacing is provided. Form a drainage groove that opens a drainage notch at the bottom of each, between the roof member and the field member, laying a thatched drainage plate member, the folding piece parts on both sides thereof The roof structure is characterized in that it is inserted into a drainage ditch, and further, inside the drainage space inside the rafter member, drainage gutters in which both side wall parts are extended upward are provided. 2. Between each of the underwater drainage plates and the roof member,
The roof structure according to claim 1, wherein the roof structure is provided with heat insulation and / or soundproofing and, at the same time, an internal space portion for interposing a drainage space is interposed. 3. A roofing member or a holding member for holding a roof member is attached and fixed by projecting upwardly a mounting surface of a central portion of an upper surface of each roof rafter member, Insulation and / or between roof member
Alternatively, the roof structure according to claim 1, wherein the roof structure is provided with a soundproof property and, at the same time, an internal space portion for interposing a drainage space is interposed. 4. A roofing roof plate member is used as each roof member, and a back-up member is provided on the back surface side of each roofing roof plate member. The roof structure described in Crab. 5. The receiving member for receiving the roof member or the backup member is projectingly formed on each of the underwater drainage plate members. The described roof structure.