JP6974997B2 - building - Google Patents

Description

The present invention relates to a building and, in particular, to a building capable of adequate ventilation.

Some buildings have a ventilated space under the roof and at least one of the floors. An example thereof is the building described in Patent Document 1. The building described in Patent Document 1 adopts a structure capable of reliably ventilating the space under the roof while keeping the upper end of the outer wall material as close as possible to the flat roof.

Further, in the building described in Patent Document 1, ventilation holes are provided in the outer wall, and through holes are provided in the beams supporting the roofing material. In such a configuration, the air outside the building passes through the ventilation holes of the outer wall and then flows into the under-roof space through the through holes of the beams to ventilate the under-roof space.

Japanese Unexamined Patent Publication No. 2016-188470

By the way, heat insulating materials, sound absorbing materials, etc. may be installed under the roof or in the space between floors. In such a configuration, the heat insulating material or the sound absorbing material may block the through hole of the beam, so that ventilation under the roof or in the space between the floors may not be properly performed.

Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide a building capable of appropriately ventilating.

According to the building according to the present invention, the above-mentioned problem is a building that ventilates between the first space and the second space, the skeleton provided between the first space and the second space, and the above-mentioned problem. The ventilation path securing member has a through hole formed in the skeleton and a ventilation path securing member for securing a ventilation path connecting the first space, the through hole, and the second space. The through hole so as to form a ventilation space between the through hole, the strut portion arranged between the heat insulating material or the sound absorbing material provided in the second space, and the through hole and the second space. have a, a support portion for supporting spaced apart the partition portion from the support portion, organic a first opening connected to the through hole, and a second opening which connects to the second space, the The ventilation path securing member has an upper surface portion and a plurality of side surface portions, and the plurality of side surface portions are a first side surface portion arranged on a side close to the through hole and a side far from the through hole. The first opening portion is provided in the first side surface portion, and the second opening portion is provided in the upper part of the ventilation path securing member, including the second side surface portion as the strut portion arranged in the. Will be solved by.

According to the above-mentioned building, by attaching a ventilation path securing member having a ventilation path inside to the through hole of the skeleton, it is possible to prevent the through hole of the skeleton from being blocked by a heat insulating material or a sound absorbing material. .. As a result, ventilation from the first space to the second space is appropriately performed through the through hole of the skeleton.
That is, according to the building according to the present invention, the ventilation volume from the first space to the second space can be secured. This makes it possible to properly ventilate the building.
In addition, ventilation from the first space to the second space can be performed through the first opening and the second opening. This allows the ventilation route to be designed.
Further, the outside air can be sent into the second space through the opening at the upper part of the ventilation path securing member. Even if the heat insulating material or the sound absorbing material is in contact with the second side surface portion of the ventilation path securing member, the upper part of the ventilation path securing member is not easily closed, so that a sufficient ventilation volume to the second space can be secured.

In the above building, it is preferable that the ventilation path securing member has the upper surface portion, the lower surface portion, and the plurality of side surface portions, and the second opening portion is provided on the upper surface portion .
By doing so, the second opening of the ventilation path securing member is less likely to be closed. This makes it possible to perform more stable ventilation.

In the above building, the first space is a space provided between the outer wall portion of the building in which a ventilation hole is formed and the second space, and the skeleton is the outer wall portion and the second space. It is preferable that the beam is provided so as to be aligned with the outer wall portion between the two.
By doing so, stable ventilation can be performed between the outside air and the building through the through hole formed in the beam.

In the above building, it is preferable that the through hole is formed in the web of the beam, and the ventilation path securing member has a mounting member attached to the web in the portion where the through hole is formed.
By doing so, it becomes easy to attach the ventilation path securing member to the place of the through hole of the beam.

In the above building, it is preferable that the mounting member is a clip that sandwiches the web.
By doing so, the ventilation path securing member can be attached to the through hole of the beam with a simple structure. As a result, it is possible to reduce the burden of attaching the ventilation path securing member to the through hole of the beam.

In the above building, it is preferable to have a locking member provided in the lower part of the first side surface portion and locking to the web below the through hole.
By doing so, it is possible to prevent the ventilation path securing member from falling off. As a result, the stability of attachment of the ventilation path securing member to the through hole of the beam can be improved.

In the above building, it is preferable that the distance between the abutment portion and the web is shorter than the length of the flange of the beam extending from the web toward the second space.
By doing so, it is possible to prevent the ventilation path securing member from protruding indoors from the flange of the beam. This makes it possible to suppress interference with building materials on the indoor side.

In the above building, it is preferable that the first space and the second space are provided under the roof or between the floors of the building.
By doing this, ventilation under the roof and between floors can be properly performed.

According to the present invention, the space of the building can be appropriately ventilated.

It is a schematic elevation view of a building. It is sectional drawing which shows the outline of the flat roof ventilation structure. It is a perspective view which shows the appearance of the ventilation path securing member. It is a figure which shows the attachment method of the ventilation path securing member to a steel frame beam. It is a figure which shows the state which attached the ventilation path securing member to the through hole of a steel frame beam. It is a figure which shows typically the state of the ventilation path when the ventilation path securing member is not attached. It is a figure which shows typically the state of the ventilation path when the ventilation path securing member is attached.

Hereinafter, an embodiment of the present invention (hereinafter referred to as the present embodiment) will be described with reference to the drawings. However, the embodiments described below are merely examples for facilitating the understanding of the present invention, and do not limit the present invention. That is, the present invention can be modified or improved without departing from the spirit of the present invention. Also, of course, the present invention may include an equivalent thereof.

In the following, the building H will be described as an example. However, the present invention is applicable to a building having a ventilated space under the roof and at least one of the floors, regardless of the external shape of the building.

Further, in the following description, the "girder direction" is the longitudinal direction of the building H, and corresponds to the extending direction of the steel frame beam 2 as the skeleton described later. Further, the "direction between beams" is the lateral direction of the building H. Further, the "vertical direction" is the vertical direction of the building H. In the present embodiment, the beam-to-beam direction corresponds to the direction in which the outer wall portion 1 and the steel frame beam 2 are lined up, and the girder direction and the vertical direction correspond to the direction in which the outer wall portion 1 and the steel frame beam 2 are lined up.

Further, in the following description, the "outdoor side" means the side closer to the outside of the building H in the beam-to-beam direction, and the "indoor side" means the side opposite to the outdoor side in the beam-to-beam direction.

<< Basic structure of the building >>
First, the basic configuration of the building H according to the present embodiment will be described.
FIG. 1 is a schematic elevation view of the building H. As shown in FIG. 1, the building H is a three-story building having a first floor H1, a second floor H2, and a third floor H3. Then, in the building H, the ventilation structure according to the present invention is applied to the target portion T corresponding to the floor under the roof, which is the lower part of the flat roof portion R.

Here, the ventilation structure at the target location T will be described with reference to FIGS. 2 to 5.
FIG. 2 is a cross-sectional view showing an outline of a flat roof ventilation structure. Note that FIG. 2 is a cross-sectional view passing through the center of the through hole 2c of the steel frame beam 2.
FIG. 3 is a perspective view showing the appearance of the ventilation path securing member 10.
FIG. 4 is a diagram showing a method of attaching the ventilation path securing member 10 to the steel frame beam 2.
FIG. 5 is a diagram showing a state in which the ventilation path securing member 10 is attached to the through hole 2c of the steel frame beam 2.

The outer wall portion 1 has an outer wall panel 3 arranged on each floor, as shown in FIG. The outer wall panel 3 is provided with a face material 4 such as a siding board, and as shown in FIG. 2, the face material 4 is arranged and exposed on the most outdoor side in the building H.

Further, a steel beam 2 as a beam is provided between the floors. The steel beam 2 is made of H-shaped steel and functions as a trunk difference in the frame of the building H. Specifically, the steel beam 2 is installed between the floors and supports the members constituting the floor of the upper floor, strictly speaking, the floor panel 6. The floor panel 6 is, for example, a board member made of autoclaved aerated lightweight concrete (hereinafter referred to as ALC).

A space having a relatively low height (a so-called underfloor pocket, hereinafter referred to as a first space V1 and a second space V2) is formed at a position directly below the floor panel 6. The first space V1 and the second space V2 are separated by a steel beam 2. That is, the space below the floor panel 6 between the outer wall portion 1 and the steel frame beam 2 is the first space V1, and the space further inside the building than the steel frame beam 2 is the second space V2.
Further, the floor panel 6 is supported by a steel beam 2 as a supported body that divides the interfloor space into the first space V1 and the second space V2. As shown in FIG. 2, the floor panel 6 is supported by the steel frame beam 2 by being placed on the upper end surface of the upper flange 2a of the steel frame beam 2.

As described above, at the outer edge portion between the floors, the steel frame beam 2 is arranged so as to be aligned with the outer wall portion 1 between the outer wall portion 1 and the second space V2.

Further, in the building H of the present embodiment, a ventilation fan (not shown) is installed in the second space V2, and by periodically operating this ventilation fan, ventilation from the first space V1 to the second space V2 is performed. Is carried out as appropriate. That is, the first space V1 and the second space V2 correspond to the ventilated space, and in the present embodiment, the air outside the building H is taken into the second space V2 through the first space V1 to enter the first space V1. And the air in the second space V2 is ventilated. Further, in the building H of the present embodiment, a ventilation structure is adopted so that the air outside the building H can be smoothly taken into the second space V2 through the first space V1. In particular, in the present embodiment, the floor panel 6 arranged directly above the first space V1 and the second space V2 is composed of a board made of ALC, and the moisture (humidity) adsorbed in the floor panel 6 is particularly high. The above ventilation structure is important because it is released into the second space V2.
Hereinafter, the ventilation structure adopted in the building H of the present embodiment will be described in detail.

The ventilation structure adopted in the building H of the present embodiment takes in (intakes) the air outside the building H from the portion corresponding to the floor of the outer edge of the building H, and takes the air into the first. It is for guiding into the second space V2 through the space V1. The air pressure in the second space V2 is adjusted to be slightly negative in order to facilitate the passage of air into the second space V2.

In the above ventilation structure, a ventilation hole 5 provided in the outer wall portion 1, a through hole 2c provided in the steel frame beam 2 and a through hole 2c are provided in order to form a ventilation path in the outer edge portion between the floors of the building H. It has a ventilation path securing member 10 attached to the. Then, the outside air is taken into the second space V2 through the first space V1 through the ventilation hole 5, the through hole 2c of the steel frame beam 2, and the ventilation path securing member 10.

The ventilation holes 5 are formed in the outer wall portion 1 for ventilating the first space V1 and the second space V2, strictly speaking, in the outer wall portion 1 provided at the outer edge portion between the floors. More specifically, as shown in FIG. 2, the ventilation holes 5 are positioned substantially the same as the through holes 2c of the steel frame beam 2 in the height direction.

Further, a hood 21 is attached to the ventilation hole 5. The hood 21 has the same configuration as a general intake hood, and has an opening (hereinafter, referred to as “hood opening”) at the lower end.

Further, the hood 21 may contain a fire prevention damper. The fire prevention damper is a device that closes the opening on the indoor side when a flame enters the building H from the outside of the building H through the ventilation hole 5 to prevent the flame from further entering the interior. As the fire prevention damper, a general fire prevention damper can be used as long as it is normally open and closed in an emergency such as a fire.

The steel beam 2 has a flange 2a and a web 2b, and a through hole 2c is formed in the web 2b. The through hole 2c may be formed at a height facing the ventilation hole 5, for example, so that the ventilation path from the ventilation hole 5 can be made straight and the ventilation efficiency can be improved. Further, the through hole 2c may be formed, for example, in a substantially central portion in the vertical direction of the web 2b. By doing so, it is possible to prevent the steel beam 2 from being biased in the vertical strength.

As described above, the through hole 2c is a circular hole formed in the web 2b of the steel frame beam 2 in order to guide the air passing through the ventilation hole 5 to the second space V2 through the first space V1. In the present embodiment, the through hole 2c is a circular hole, but the through hole 2c is not limited to the circular hole, and may be a polygonal shape including a triangle or a quadrangle, or any other shape.

A ventilation path securing member 10 is attached to the through hole 2c. Specifically, the ventilation path securing member 10 is attached to the portion of the through hole 2c formed in the web 2b in a state of facing the web 2b on the indoor side of the steel frame beam 2.
By doing so, as shown in FIG. 2, the ventilation path securing member 10 is arranged between the through hole 2c of the steel frame beam 2 and the heat insulating material 8 arranged in the second space V2. The heat insulating material 8 may be a fiber-based heat insulating material such as glass wool or rock wool, or may be a foam-based heat insulating material such as polystyrene foam.

Then, as shown in FIG. 2, the ventilation path securing member 10 is attached to the strut portion 10X arranged at a position separated from the through hole 2c and the web 2b of the steel frame beam 2 to support the strut portion 10X. A unit 10Y is provided. The abutment portion 10X is a member arranged between the through hole 2c and the heat insulating material 8 and restricts the position of the heat insulating material 8 so that the heat insulating material 8 does not come into contact with the through hole 2c.
Further, the support portion 10Y is provided with openings on both the through hole 2c side and the side connected to the second space V2. As a result, the ventilation path securing member 10 can form the ventilation space 10Z that connects the through hole 2c and the second space V2 inside.

Next, with reference to FIGS. 3 to 5, details of the configuration of the ventilation path securing member 10 and the method of attaching the steel frame beam 2 to the through hole 2c will be described.

As shown in FIG. 3, the ventilation path securing member 10 has a substantially box-like appearance and has two openings. Specifically, the ventilation path securing member 10 has an upper surface portion 10A, a lower surface portion 10B, and a plurality of side surface portions connecting the upper surface portion 10A and the lower surface portion 10B. The plurality of side surface portions include a first side surface portion 10C on the outdoor side, a second side surface portion 10D on the indoor side, and third side surface portions 10E on the left and right.
In this embodiment, the second side surface portion 10D of the ventilation path securing member 10 corresponds to the above-mentioned strut portion 10X. Further, the upper surface portion 10A, the lower surface portion 10B, the first side surface portion 10C, and the third side surface portion 10E of the ventilation path securing member 10 correspond to the above-mentioned support portion 10Y.

The first side surface portion 10C is a surface facing the through hole 2c of the steel frame beam 2. That is, the first side surface portion 10C is a surface arranged on the side closest to the through hole 2c of the steel frame beam 2.
Then, as shown in FIG. 3, a first opening 11 is formed in the central portion of the first side surface portion 10C. As shown in FIGS. 4 and 5, the first opening 11 is an opening that connects to the through hole 2c when the ventilation path securing member 10 is attached to the through hole 2c of the steel frame beam 2.
The first opening 11 is formed as a rectangular hole, but the shape is not limited to a rectangular shape, and may be another shape such as a circular shape. It is desirable that the size of the first opening 11 is equal to or larger than the through hole 2c of the steel frame beam 2.

Then, as shown in FIG. 3, a second opening 12 is formed in the upper surface portion 10A. It is desirable that the second opening 12 has a size that can secure the total effective opening area in the ventilation path in the upper surface portion 10A.

Here, the attachment of the ventilation path securing member 10 to the through hole 2c of the steel frame beam 2 will be described.
The first side surface portion 10C is provided with a plate-shaped clip mounting portion 10Ca on the upper portion of the first opening portion 11. A metal clip 13 is attached to the lower end of the clip attachment portion 10Ca. The clip 13 may be attached to the clip attachment portion 10Ca by mechanical joining with screws or the like, or by welding or the like.
The clip 13 extends upward from the lower end portion of the clip mounting portion 10Ca, and the member (for example, the web 2b of the steel frame beam 2) can be sandwiched by the clip 13 and the clip mounting portion 10Ca.

The first side surface portion 10C is provided with a plate-shaped locking portion mounting portion 10Cb below the first opening portion 11. A metal locking member 14 is mounted on the upper end of the locking portion mounting portion 10Cb. The locking member 14 may be a metal plate-like body extending to the outdoor side. The locking member 14 may be mounted on the locking portion mounting portion 10Cb by mechanical joining using screws or the like, or by welding or the like.
The locking member 14 can be locked to the lower end of the through hole 2c of the steel frame beam 2. The locking member 14 may be formed in a flat plate shape or in a hook shape.

Here, a method of attaching the ventilation path securing member 10 to the through hole 2c of the steel frame beam 2 will be specifically described. As shown in FIG. 4, the web 2b at the upper end of the through hole 2c is clipped with the clip 13 so that the clip 13 is on the outdoor side and the clip mounting portion 10Ca is on the indoor side with respect to the through hole 2c of the steel frame beam 2. It is sandwiched by the mounting portion 10Ca. Then, by pressing the lower end side of the ventilation path securing member 10 against the web 2b so as to face the web 2b, the locking member 14 of the ventilation path securing member 10 is placed on the lower end of the through hole 2c of the steel frame beam 2. Will be distributed. As a result, the lower end of the through hole 2c of the steel frame beam 2 and the locking member 14 are locked.

As shown in FIGS. 4 and 5, the ventilation path securing member 10 sandwiches the web 2b above the through hole 2c of the steel frame beam 2 with a clip 13 as a mounting member, and the through hole 2c of the steel frame beam 2 It is locked to the lower web 2b by the locking member 14. As a result, the ventilation path securing member 10 can be attached in a state where the through hole 2c of the steel frame beam 2 and the first opening 11 of the ventilation path securing member 10 are combined. Further, by providing the ventilation path securing member 10 with a locking member 14 that locks at the lower end of the through hole 2c of the steel frame beam 2, it is possible to prevent the ventilation path securing member 10 from falling downward. .. That is, it is possible to improve the stability of mounting the ventilation path securing member 10 to the through hole 2c of the steel frame beam 2.

In the present embodiment, the distance between the second side surface portion 10D of the ventilation path securing member 10 and the web 2b is shorter than the length of the flange 2a of the steel frame beam 2 extending from the web 2b toward the second space V2. .. As a result, it is possible to prevent the ventilation path securing member 10 from interfering with the building material on the indoor side, and to improve the degree of freedom of installation.

Explaining the ventilation path for guiding the air outside the building H into the second space V2 through the first space V1, the air outside the building H flows into the hood 21 through the hood opening (lower end), and further. It flows into the first space V1. Then, it flows from the first space V1 through the through hole 2c of the steel frame beam 2, through the first opening 11 of the ventilation path securing member 10 communicating with the through hole 2c, and into the ventilation space 10Z of the ventilation path securing member 10. Then, it flows into the second space V2 through the second opening 12 of the upper surface portion 10A of the ventilation path securing member 10.

As described above, the second side surface portion 10D of the ventilation path securing member 10 functions as a strut portion between the through hole 2c of the steel frame beam 2 and the heat insulating material 8 provided in the second space V2. That is, the second side surface portion 10D, which is the indoor side surface of the ventilation path securing member 10 attached to the through hole 2c of the steel frame beam 2, comes into contact with the heat insulating material 8, so that the heat insulating material 8 penetrates the steel frame beam 2. It is possible to prevent the hole 2c from being blocked.

If the ventilation path securing member 10 is not attached to the through hole 2c of the steel frame beam 2, as shown in FIG. 6, the through hole 2c of the steel frame beam 2 is blocked by the heat insulating material 8 and the inside of the ventilation path A1. Therefore, the portion of the through hole 2c becomes a bottleneck, and there is a possibility that sufficient ventilation volume cannot be secured.
On the other hand, when the ventilation path securing member 10 is attached to the through hole 2c of the steel frame beam 2, the steel frame beam 2 and the through hole 2c are not blocked by the heat insulating material 8 as shown in FIG. 7. Therefore, the portion of the through hole 2c in the ventilation path A2 does not become a bottleneck, and a sufficient ventilation volume can be secured.

Then, the air in the second space V2 moves along the air flow by the ventilation fan (not shown) and is carried out of the building H. In this way, in the building H, it is possible to secure a sufficient ventilation volume when ventilating the second space V2.

<< Effects played by Building H >>
According to the building H according to the above embodiment, the ventilation path securing member 10 having a ventilation path inside is attached to the through hole 2c of the steel frame beam 2, so that the through hole 2c of the steel frame beam 2 is the heat insulating material 8. It can be prevented from being blocked by the sound absorbing material. As a result, the outside air can be easily taken into the first space V1 and the second space V2 (ventilated space) through the ventilation hole 5 of the outer wall portion 1, the through hole 2c of the steel frame beam 2, and the ventilation path securing member 10.
That is, according to the building H, it is possible to secure the ventilation volume with respect to the ventilation of at least one space under the roof and between the floors. This allows proper ventilation of at least one of the spaces under the roof and between the floors of the building.

In the building H, the through hole 2c is formed in the web 2b of the steel frame beam 2, and the ventilation path securing member 10 has a clip 13 (mounting member) attached to the web 2b in the portion where the through hole 2c is formed.
By doing so, it becomes easy to attach the ventilation path securing member 10 to the portion of the through hole 2c of the steel frame beam 2.

In the building H, the ventilation path securing member 10 has an upper surface portion 10A, a lower surface portion 10B, and a plurality of side surface portions. The plurality of side surface portions include a first side surface portion 10C arranged on the side closer to the through hole 2c, and a second side surface portion 10D as a strut portion arranged on the side farther from the through hole 2c. The first opening 11 is provided on the first side surface portion 10C, and the second opening 12 is provided on the upper surface portion 10A.
By doing so, the outside air can be sent to the second space V2 (ventilated space) through the opening of the upper surface portion 10A of the ventilation path securing member 10. Even if the heat insulating material 8 or the sound absorbing material is in contact with the second side surface portion 10D of the ventilation path securing member 10, the upper surface portion 10A of the ventilation path securing member 10 is not blocked, so that the second space V2 (ventilated space) Sufficient ventilation can be secured.

In the building H, the mounting member is a clip 13 provided on the upper portion (clip mounting portion 10Ca) of the first side surface portion 10C and sandwiching the web 2b above the through hole 2c.
By doing so, the ventilation path securing member 10 can be attached to the through hole 2c of the steel frame beam 2 with a simple structure. As a result, the burden of attaching the ventilation path securing member 10 to the through hole 2c of the steel frame beam 2 can be reduced.

The building H has a locking member 14 provided at the lower part of the first side surface portion 10C (locking portion mounting portion 10Cb) and locked to the web 2b below the through hole 2c.
By doing so, it is possible to prevent the ventilation path securing member 10 from falling off. As a result, the stability of attachment of the ventilation path securing member 10 to the through hole 2c of the steel frame beam 2 can be improved.

In the building H, the distance between the second side surface portion 10D of the ventilation path securing member 10 and the web 2b is shorter than the length of the flange 2a of the steel frame beam 2 extending from the web 2b toward the second space V2.
By doing so, the ventilation path securing member 10 can be prevented from protruding indoors from the flange 2a of the steel frame beam 2. As a result, interference between the ventilation path securing member 10 and the building material on the indoor side can be suppressed.

<< Other Embodiments >>
Although the building of the present invention has been described above with an example, the building of the present invention is not limited to the above embodiment.
For example, the support portion 10Y of the ventilation path securing member 10 may be one or a plurality of columnar members that support the strut portion 10X. In this case, the columnar member may be joined to the periphery of the through hole 2c of the steel frame beam 2 so that the strut portion 10X is arranged at a position away from the through hole 2c.
Further, the ventilation path securing member 10 can be similarly attached to a through hole formed in a skeleton other than the steel frame beam 2.
Further, the ventilation path securing member 10 may be attached not only to the second space V2 side of the steel frame beam 2 but also to the first space V1 side. By doing so, it is possible to secure a ventilation path even when the heat insulating material 8 is provided on the first space V1 side.

Further, in the above embodiment, the example in which the opening connected to the second space V2 is one of the second openings 12 has been described, but there may be a plurality of the second openings 12.
For example, the second opening 12 may be formed not only on the upper surface portion 10A but also on the third side surface portion 10E.
Further, in the above embodiment, an example in which the second opening portion 12 is formed on the upper surface portion 10A has been described, but the second opening portion 12 is not limited to the upper surface portion 10A, but also includes the third side surface portion 10E and the second side surface. It may be formed on the upper part of the portion 10D or the like. Here, the above-mentioned "upper part" is, for example, above the central portion in the vertical direction of the ventilation path securing member 10.

Further, in the above embodiment, an example in which the ventilation path securing member 10 is attached to the through hole 2c of the steel frame beam 2 by the clip 13 has been described, but the ventilation path securing member 10 is attached to the steel frame beam 2 by the clip 13. Not limited. For example, the ventilation path securing member 10 may be attached to the steel frame beam 2 by welding, fastening with an adhesive, a magnet, a bolt or a nut, or the like.

Further, in the above embodiment, the example in which the ventilation path securing member 10 has a box shape has been described, but the ventilation path securing member 10 is not limited to the box shape. For example, it may have an arbitrary shape such as a hemispherical shape or a staircase shape.

Further, in the above embodiment, an example in which the heat insulating material 8 is provided in the second space V2 has been described, but even when the sound absorbing material is provided in the second space V2, the ventilation path securing member 10 is similarly provided. Applicable.

Further, in the above embodiment, the ventilation structure for ventilating the second space V2 in the multi-story building H has been described as an example. However, the ventilation structure of the present invention can also be used when ventilating the space in a building having a ventilated space under the roof (for example, a flat roof type building). In such a case, the roofing material is supported by the steel frame beam 2 as a supported body, but other configurations are the same as the above-mentioned ventilation structure (structure for ventilating the second space V2). ..
The ventilation structure of the present invention can also be used when ventilation of each space is provided in the case where the ventilated space is provided both under the roof and between the floors.

Further, in the above embodiment, the outside air is taken into the first space V1 through the ventilation hole 5 of the outer wall portion 1, and the air is further flowed from the first space V1 in the direction of the second space V2 through the ventilation path securing member 10. , Not limited to this. That is, air may flow from the second space V2 to the first space V1 through the ventilation path securing member 10, and further, air may be discharged from the first space V1 to the outside of the building H through the ventilation holes 5 of the outer wall portion 1.

1 Outer wall 2 Steel beam (beam, skeleton)
2a Flange 2b Web 2c Through hole 3 Outer wall panel 4 Face material 5 Vent hole 6 Floor panel (supported body)
8 Insulation material 10 Ventilation path securing member 10A Top surface 10B Bottom surface 10C 1st side surface 10Ca Clip mounting part 10Cb Locking part mounting part 10D 2nd side surface part 10E 3rd side surface part 10X Tsuitate part 10Y Support part 10Z Ventilation space 11th 1 opening 12 2nd opening 13 clip (mounting member)
14 Locking member 21 Hood A1 Ventilation route A2 Ventilation route H Building H1 1st floor H2 2nd floor H3 3rd floor T Target location R Flat roof V1 1st space V2 2nd space

Claims (8)

It is a building that ventilates between the first space and the second space.
The skeleton provided between the first space and the second space,
Through holes formed in the skeleton and
It has a ventilation path securing member for securing a ventilation path connecting the first space, the through hole, and the second space.
The ventilation path securing member is
A strut portion arranged between the through hole and a heat insulating material or a sound absorbing material provided in the second space.
Wherein to form a ventilation space between the through hole and the second space, have a, a support portion for supporting spaced apart the partition portion from the through hole,
The support portion is
The first opening connected to the through hole and
It has a second opening that connects to the second space, and has
The ventilation path securing member has an upper surface portion and a plurality of side surface portions.
The plurality of side surface portions include a first side surface portion arranged on a side close to the through hole and a second side surface portion as the strut portion arranged on a side far from the through hole.
The first opening is provided on the first side surface portion.
The building is characterized in that the second opening is provided above the ventilation path securing member. The ventilation path securing member has the upper surface portion, the lower surface portion, and the plurality of side surface portions.
The building according to claim 1, wherein the second opening is provided on the upper surface portion. The first space is a space provided between the outer wall portion of the building in which the ventilation holes are formed and the second space.
The building according to claim 1 or 2 , wherein the skeleton is a beam provided between the outer wall portion and the second space so as to be aligned with the outer wall portion. The through hole is formed in the web of the beam and
The ventilation path securing member is
The building according to claim 3, wherein the building has a mounting member attached to the web at a portion where the through hole is formed. The building according to claim 4 , wherein the mounting member is a clip that sandwiches the web. The building according to claim 4 or 5 , wherein the building is provided at the lower part of the first side surface portion and has a locking member for locking to the web below the through hole. The building according to any one of claims 4 to 6 , wherein the distance between the abutment portion and the web is shorter than the length of the flange of the beam extending from the web toward the second space. .. The building according to any one of claims 1 to 7 , wherein the first space and the second space are provided under the roof or between the floors of the building.

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