JP2019060126A - building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress interference between members installed around each hole between an outer wall portion and a beam in a building in which a hole is provided in each of an outer wall and a beam for ventilating a ventilated space. SOLUTION: In a building having a ventilated space between floors, an outer wall portion provided on an outer edge portion of the building, a steel beam provided alongside the outer wall portion, and an outer wall for ventilating the ventilated space. Ventilation holes formed in the part, through holes formed in the steel beam and provided closer to the ventilated space than the ventilation holes in the air passage when ventilating the ventilated space, the outer wall part and the steel frame. It is provided with an enclosure wall provided between the beam and the vent to surround the indoor opening of the vent, and a sleeve that is inserted through the through hole and partly protrudes from the outdoor opening of the through hole. Ventilation holes and through holes are located at different positions in the direction in which the outer wall portion and the steel beam are lined up and intersect. [Selection diagram] FIG. 7

Description

  The present invention relates to a building, and more particularly to a building having a ventilated space and capable of ventilating the ventilated space.

  Some buildings have a ventilated space under the roof and between floors. The building of patent document 1 is mentioned as the example. The building described in Patent Document 1 adopts a structure capable of reliably ventilating the under-the-roof space while keeping the upper end of the outer wall material as close as possible to the flat roof.

  Moreover, in the building described in Patent Document 1, a vent is provided in the outer wall, and a through hole is provided in the beam supporting the roof material. In such a configuration, ventilation of the under-the-roof space is performed by the air outside the building passing through the vents of the outer wall and entering the under-the-roof space through the through holes of the beam.

JP, 2016-188470, A

By the way, in the configuration in which the ventilating holes (specifically, the vent holes and the through holes) are provided in each of the outer wall and the beam as described above, parts around each hole in the space between the outer wall and the beam May be installed. For example, around the vent provided in the outer wall (strictly, around the opening on the indoor side of the vent), a member may be provided to prevent rainwater from entering the indoor. Moreover, a cylindrical member may be penetrated by the through-hole provided in the beam.
As described above, in the case of installing components on the side of each hole in the space between the outer wall and the beam, it is necessary to properly install each component while avoiding interference between the components.

  In addition, in order to secure fire resistance performance around the beam, a fireproof material may be installed in the space between the outer wall and the beam. In such a configuration, if the position of the refractory material is displaced or the refractory material is deformed (strictly bulging), the air passage of the air passing through the vent is blocked by the refractory material, and as a result, Ventilation in the ventilation space may not be properly performed.

Then, this invention is made in view of said subject, The place made into the objective is an outer wall part as a building in which the hole was provided in each of the outer wall part and the beam in order to ventilate a ventilated space. And providing a building capable of suppressing interference between parts installed around each hole between beams.
In addition, another object of the present invention is to avoid a situation in which a ventilation path of air passing through a vent is blocked by a refractory when installing the refractory in the space between the outer wall and the beam. .

  In the case of a building according to the present invention, the subject is a building having a ventilated space, and an outer wall provided at an outer edge of the building, a beam provided so as to line with the outer wall, and the cover A vent formed in the outer wall to ventilate a ventilated space, and a beam formed in the beam, and in a passage of air when ventilating the ventilated space, in the ventilated space rather than the vent. A through hole provided at a close position, a first member at least a part of which is adjacent to the vent between the outer wall and the beam, and at least a part of the through between the outer wall and the beam It is solved by having the second member adjacent to the hole, and the vent hole and the through hole being at different positions in a direction intersecting the direction in which the outer wall portion and the beam are arranged.

  As mentioned above, in the building of the present invention, each of the outer wall and the beam is provided with a hole (specifically, a vent and a through hole) in order to ventilate the ventilated space. Further, predetermined members (specifically, a first member and a second member) are provided around the respective holes between the outer wall portion and the beam. The vent holes and the through holes are provided at different positions in a direction intersecting the direction in which the outer wall portion and the beam are arranged. Therefore, the first member and the second member are also disposed at different positions in the direction intersecting with the direction in which the outer wall portion and the beam are arranged. That is, in the building of the present invention, the first member and the second member are arranged at mutually offset positions between the outer wall portion and the beam. As a result, it is possible to properly arrange both the first member and the second member while avoiding interference between the members between the outer wall portion and the beam.

In the above-mentioned building, the second member is a cylindrical member which is inserted into the through hole and a part thereof protrudes from the opening on the outdoor side of the through hole, and the inside of the cylindrical member and the ventilation It is preferred that the spaces communicate.
In the above configuration, the cylindrical member as the second member is inserted into the through hole. The air that has passed through the vent passes through the inside of the tubular member and is guided into the vented space through the through hole of the beam.

In the above-mentioned building, the first member is an enclosure wall arranged to surround the opening on the indoor side of the vent, and a space surrounded by the enclosure wall and a space outside the building are It is preferable that they communicate with each other through the vent holes.
In the above configuration, the enclosure wall, which is the first member, is disposed to surround the opening on the indoor side of the vent. As a result, even if the air outside the building passes through the vent together with rainwater and snow (hereinafter, rainwater and the like), the surrounding wall can prevent rainwater and the like from further entering the indoor side.

In the above building, a refractory material provided between the outer wall and the beam so as to be adjacent to the end face on the outdoor side of the web portion of the beam, and between the outer wall and the beam In the above, it is more preferable to have an installation space in which the refractory material is installed, and a partition wall provided to partition a non-installation space located on the outdoor side of the installation space.
In the above configuration, when a refractory material is installed between the outer wall and the beam so as to be adjacent to the outdoor side end face of the web portion of the beam, the space where the refractory material is installed and the other space The installation space is separated by a partition wall. This makes it possible to prevent the refractory material from entering the non-installation space. As a result, when the air passing through the vent moves between the outer wall and the beam, it is possible to prevent the vent from being blocked by the refractory material. That is, according to the above configuration, it is possible to properly secure the ventilation path of the ventilation air (that is, the air that has passed through the vent hole) between the outer wall portion and the beam.

In the above building, the partition wall is provided between the outer wall portion and the beam so as to be adjacent to the enclosure wall, and the space adjacent to the partition wall in the non-installation space, and the enclosure It is more preferable that the space surrounded by the wall is continuous with each other, and forms an air flow path of the air passing through the air vent.
In the above configuration, the ventilation path of the air passing through the ventilation holes is secured by the surrounding wall and the partition wall between the outer wall portion and the beam.

In the above-mentioned building, the partition wall is provided with a second through hole, and the through hole and the second through hole intersect the direction in which the outer wall portion and the beam are arranged. It is even more preferable if they are at the same position.
In the above configuration, the air that has passed through the vent moves in the space adjacent to the partition wall in the non-installation space, passes through the second through hole, and travels to the through hole of the beam. Thus, the air having passed through the vent moves between the outer wall and the beam toward the through hole of the beam.

Further, in the above-mentioned building, it is more preferable that the air vent and the through hole are at different positions in the extending direction of the beam.
In the above configuration, since the vent and the through hole are at different positions in the extending direction of the beam, the air passing through the vent moves along the extending direction of the beam between the outer wall portion and the beam; Eventually, it will pass through the through hole of the beam. With the above configuration, it is possible to change the moving direction of air after the air outside the building passes through the vent.

Further, in the above-mentioned building, the outer wall portion includes a facing exposed on the outdoor side, and a drainage member disposed indoors more than the facing, and the air hole is formed on the facing. It has a face material side vent provided, and a draining member side vent provided in the draining member, and the first member is provided in contact with the surface on the indoor side of the draining member, the outer wall portion It is still more preferable that the face material side vent hole and the drainage member side vent hole are at the same position in the direction intersecting with the direction in which the beam and the beam are arranged.
In said structure, an outer wall part has a face material and a draining member, and a vent is provided in each of a facing and a draining member. And each ventilation hole (specifically, a face material side ventilation hole and a drainage member side ventilation hole) exists in the same position in the direction which intersects with the direction where an outer wall part and a beam are located in a line. This allows air to pass smoothly through each vent when taking in air outside the building to ventilate the ventilated space.

In the above-mentioned building, the above-mentioned building is provided with a supported body which is provided immediately above the ventilated space to partition the ventilated space, and is supported by the beam, and the supported body is made of lightweight cellular concrete. If done, it is more preferable.
If it is said structure, since the to-be-supported body arrange | positioned in order to partition a to-be-vented space is lightweight cellular concrete, it is necessary to ventilate the to-be-vented space located directly under it suitably. For this reason, the effect of the present invention of appropriately securing the ventilation path of the ventilation air (that is, the air which has passed through the vent hole) between the outer wall portion and the beam becomes more significant.

According to the present invention, in a building in which a hole is provided in each of the outer wall and the beam to ventilate a ventilated space, interference between members installed around each hole between the outer wall and the beam is suppressed. It becomes possible.
Further, according to the present invention, when the refractory material is installed adjacent to the outdoor side end face of the web portion of the beam in the above-mentioned building, the air passing through the vent moves between the outer wall portion and the beam. It is possible to avoid that the ventilation passage at the time is blocked by the refractory material.

It is the figure which looked at the part located between floors among the outer edges of the building concerning this embodiment from the outside of a building. It is the figure which looked at the part located between floors among the outer edge parts of the building which concerns on this embodiment from upper direction. It is a figure when the part located between floors among the outer edge parts of the building which concerns on this embodiment is cut | disconnected and seen by the XX surface of FIG. It is a figure when the part located between floors among the outer edge parts of the building which concerns on this embodiment is cut | disconnected in YY of FIG. It is a perspective view which shows a draining member in which the enclosure wall and the partition wall were attached. It is explanatory drawing of the ventilation path in the outer edge part between the floors of the building which concerns on this embodiment (the 1). It is explanatory drawing of the ventilation path in the outer edge part between the floors of the building which concerns on this embodiment (the 2). It is a figure which shows the condition where the ventilation path was obstruct | occluded by the refractory material.

  Hereinafter, an embodiment of the present invention (hereinafter, 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 and improved without departing from the spirit thereof. Also, of course, the present invention may include equivalents thereof.

  In addition, below, the building H which made the substantially rectangular external shape by planar view is mentioned as an example, and is demonstrated. However, the present invention is applicable to a building having a ventilated space in at least one of the roof and the floor regardless of the external shape of the building.

  Moreover, in the following description, "the row direction" is the longitudinal direction of the building H, and corresponds to the extending direction of the steel frame beam 2 described later. The “inter-beam direction” is the short side direction of the building H. The “vertical direction” is the vertical direction of the building H. In the present embodiment, the inter-beam direction corresponds to the direction in which the outer wall portion 1 and the steel frame beam 2 are aligned, and the beam direction and the vertical direction correspond to a direction intersecting the direction in which the outer wall portion 1 and the steel frame beam 2 are arranged.

  Moreover, in the following description, the "outside side" means the side near the outer side of the building H in the inter-beam direction, and the "indoor side" means the opposite side to the outdoor side in the inter-beam direction.

<< Basic Configuration of Building >>
First, the basic configuration of the building H according to the present embodiment will be described. The building H is a multi-storey building, and the outer wall 1 illustrated in FIGS. 1 to 4 is provided at the outer edge of each floor (in other words, the end in the cross beam direction). 1 to 4 are views showing the outer edge of a building H according to this embodiment, and FIG. 1 is a view of the outer edge between floors as seen from the outside of the building H, and FIG. 3 is a view of the outer edge between the floors as viewed from the top along the line X-X in FIG. 2, and FIG. 4 is the outer edge between the floors 6 is a view of a section taken along a line Y-Y in FIG. 1 to 3 illustrate some of the devices (for example, the fire prevention damper 20 described later) in a simplified manner for convenience of illustration, and in FIG. 1, some of the devices (for example, The illustration of the hood 21) is omitted.

  The outer wall portion 1 is disposed between the outer wall panel 3 disposed on each floor and the outer wall panel 3 on the upper floor and the outer wall panel 3 on the lower floor (that is, between floors) as shown in FIGS. 3 and 4. And the drain member 5. The face material 4 is made of, for example, a siding board, and as shown in FIG. The drainage member 5 is made of, for example, a metal plate, and is disposed at a position adjacent to the facing 4 on the indoor side of the facing 4 as shown in FIG.

  Moreover, the steel frame beam 2 as a beam is provided between the floors. The steel frame beam 2 is made of an H-shaped steel, and functions as a trunk difference in the frame of the building H. Specifically, the steel frame beam 2 is installed between the floors and supports a member constituting the floor of the upper floor, specifically, the floor panel 6. The floor panel 6 is a board member made of autoclaved lightweight cellular concrete (Autoclaved Lightweight Concrete, hereinafter, ALC).

  Then, a space having a relatively low height (so-called under floor space, hereinafter referred to as inter-floor space V) is formed immediately below the floor panel 6. In other words, the floor panel 6 is provided at a position immediately above the interfloor space V in order to partition the interfloor space V, and is supported by the steel frame beam 2 as a support. In addition, the floor panel 6 is supported by the steel frame beam 2 by being mounted on the upper end surface of the upper flange part 2a which the steel frame beam 2 has, as shown in FIG.

  As described above, at the outer edge between the floors, the steel frame beam 2 is arranged in line with the outer wall 1 between the outer wall 1 and the space V between the floors.

  Moreover, the building H of this embodiment is a fireproof specification, and the fireproof material 7 is installed around the steel frame beam 2 installed between the floors according to a predetermined installation procedure. If it demonstrates concretely, the refractory material 7 will be installed so that the outdoor side end surface of the web part 2b which the steel frame cross-beam 2 has may be adjacent between the outer wall part 1 and the steel frame cross-beam 2 in the direction between beams. In addition, the fireproof material 7 of this embodiment consists of a panel-like rock wool, and as shown in FIG. 4, it is installed in the state pinched | interposed between a pair of upper and lower flange parts 2a which the steel frame cross-beam 2 has. That is, in the space between the outer wall portion 1 and the steel frame beam 2, the space surrounded by the outdoor side end face of the web portion 2b and the pair of upper and lower flange portions 2a corresponds to the installation space S1 where the refractory material 7 is installed. Do.

  In addition, the thickness (length in the direction between beams) of the refractory material 7 is the same length as the amount by which each flange portion 2 a of the steel frame beam 2 protrudes to the outdoor side. Therefore, in the state where the refractory 7 is installed in the installation space S1, the end position on the outdoor side of the refractory 7 is substantially aligned with the end position on the outdoor side of the flange portion 2a. Furthermore, the refractory material 7 is installed in the installation space S1 in a state of extending along the extension direction of the steel frame beam 2 (i.e., the beam direction).

Moreover, in the building H of this embodiment, a ventilation fan (not shown) is installed in the inter-floor space V, and ventilation of the inter-floor space V is appropriately performed by operating the ventilation fan periodically. . That is, the inter-floor space V corresponds to a ventilated space, and in the present embodiment, the inside of the inter-floor space V is ventilated by taking in the air outside the building H. And in the building H of this embodiment, the ventilation structure which can take in the air of the outside of the building H smoothly in the space between floors V is adopted. In particular, in the present embodiment, the floor panel 6 partitioning the floor space V is constituted by a board made of ALC, and moisture (humidity) adsorbed in the floor panel 6 is released into the floor space V. Therefore, the above-mentioned ventilation structure is important.
Hereinafter, the ventilation structure employed in the building H of the present embodiment will be described in detail.

<< Ventilation structure in the building H of this embodiment >>
The ventilation structure employed in the building H of the present embodiment will be described with reference to FIGS. FIG. 5 is a perspective view showing the drainage member 5 to which the surrounding wall 11 and the partition wall 12 are attached, and is a view of the drainage member 5 as viewed from the indoor side. FIG.6 and FIG.7 is explanatory drawing of the ventilation path in the outer edge part between the floors of the building H which concerns on this embodiment, FIG. 6: between the floors in the horizontal plane which passes along virtual line AA in FIG. It is a figure when an outer edge part is cut | disconnected and it sees from upper direction, FIG. 7 is a figure when an outer edge part between floors is cut | disconnected in the BB surface of FIG. 2, and it sees from the outdoor side. Although the vent holes 14 (strictly speaking, the draining member side vent holes 16) do not appear in the cross section shown in FIG. 7 in principle, the positions of the draining member side vent holes 16 are shown in FIG. Is indicated by a broken line.

  The ventilation structure employed in the building H of the present embodiment takes in (intakes) the air outside the building H from the portion corresponding to the floor in the outer edge of the building H, and the air is taken between the floors It is for leading in V. In addition, in order to facilitate the passage of air into the interfloor space V, the air pressure in the interfloor space V is adjusted to be slightly negative.

  The ventilating structure described above, as shown in FIGS. 1 to 5, includes a vent 14 provided in the outer wall 1 to form a vent path at the outer edge between the floors of the building H; It has the enclosure wall 11 attached to the inner surface, the through-hole 17 provided in the steel frame beam 2, and the sleeve 13 as a cylindrical member penetrated by the through-hole 17. As shown in FIG.

  In order to ventilate the inter-floor space V, the air vents 14 are formed in the outer wall 1, strictly speaking, the outer wall 1 provided at the outer edge between the floors. If it demonstrates more concretely, as shown in FIG. 3, the ventilation hole 14 is the surface material side ventilation hole 15 provided in the surface material 4 arrange | positioned between the floors, and the draining member side provided in the drainage member 5 And an air vent 16. As shown in FIG. 3, the face material side air vent 15 and the water removing member side air vent 16 are at the same position in the row direction and the vertical direction.

  In addition, the hood 21 is attached to the surface of the outdoor side of the face material 4 arrange | positioned between floors so that the opening of the outdoor side of the face material side vent hole 15 may be enclosed. The hood 21 has a configuration similar to that of a general intake hood, and is provided with an opening (hereinafter referred to as a "hood opening") at its lower end.

  The enclosure wall 11 corresponds to the first member of the present embodiment, and is adjacent to the drainage member-side vent hole 16 between the drainage member 5 and the steel frame beam 2 in the inter-beam direction. Describing in more detail, as shown in FIG. 5, the enclosure wall 11 is made of a steel plate bent into a box shape with a bottom, and the house of the drainage member 5 is surrounded by the opening on the indoor side of the drainage member side vent hole 16. It is attached to the inner surface. That is, the surrounding wall 11 is provided so as to be in contact with the indoor surface of the drainage member 5.

  The space surrounded by the surrounding wall 11 around the drainage member side vent hole 16 is a space where the upper end is open and the space other than the upper end is closed by the surrounding wall 11. Further, as shown in FIG. 3, the space surrounded by the surrounding wall 11 is the space outside the building H via the vent holes 14 (strictly speaking, the face material side vent holes 15 and the draining member side vent holes 16) It is in communication.

  Further, in the present embodiment, a part of the fire prevention damper 20 (a part on the indoor side) is accommodated in the space surrounded by the enclosure wall 11. When the flame enters the building H from the outside of the building H through the vent 14, the fire protection damper 20 blocks the opening on the indoor side of the drainage member-side vent 16 and the flame further enters the indoor It is a device to prevent. As the fire protection damper 20, it is possible to use a general fire protection damper as long as it is normally open and closed in an emergency such as a fire.

  The through holes 17 are circular holes formed in the web portion 2 b of the steel frame beam 2 in order to introduce the air having passed through the vent holes 14 into the inter-story space V. The through hole 17 is provided at a position closer to the inter-floor space V than the vent 14 in the air passage (air path) when ventilating the inter-floor space V. The sleeve 13 is inserted into the through hole 17. The sleeve 13 corresponds to a second member of the present embodiment, and a portion thereof protrudes from the opening on the outdoor side of the through hole 17. That is, the part of the sleeve 13 which protrudes from the opening on the outdoor side of the through hole 17 is adjacent to the through hole 17 between the drainage member 5 and the steel frame 2 in the inter-beam direction.

  The sleeve 13 is formed by molding a refractory covering material (specifically, heat resistant rock wool) into a tubular shape, and has an outer diameter the same size as the diameter of the through hole 17. The sleeve 13 is inserted into the through hole 17 and fitted in the through hole 17.

  The internal space of the sleeve 13 inserted into the through hole 17 is in communication with the inter-story space V as shown in FIG.

  Further, as described above, the sleeve 13 is attached to the steel frame beam 2 with a part thereof protruding from the opening on the outdoor side of the through hole 17. On the other hand, the fireproof material 7 is disposed in the space (that is, the installation space S1) surrounded by the outdoor side end face of the web portion 2b of the steel frame beam 2 and the pair of upper and lower flange portions 2a. Further, the refractory material 7 extends along the extending direction (cross direction) of the steel frame beam 2, and more specifically, as shown in FIGS. 1 and 2, the through hole 17 is provided in the web portion 2b. It extends to pass through the

  Furthermore, in the portion of the refractory 7 facing the portion where the through holes 17 are provided in the web portion 2b, a circular sleeve-like sleeve through hole 18 formed through the refractory 7 is provided. . A portion of the sleeve 13 that protrudes from the opening on the outdoor side of the through hole 17 is inserted into the sleeve through hole 18. The sleeve 13 is inserted into the sleeve through hole 18 to a position where the end face of the portion projecting from the opening on the outdoor side of the through hole 17 is aligned with the end face on the outdoor side of the refractory 7.

  Next, the ventilation path for introducing the air outside the building H into the inter-story space V will be described. The air outside the building H enters the hood 21 through the hood opening (lower end), and further, the facing side It enters into the building H through the vent hole 15 and the drain member side vent hole 16. The air that has passed through the drainage member-side vent hole 16 travels between the drainage member 5 and the steel frame beam 2 via the space surrounded by the enclosure wall 11. At this time, the air collides with the enclosure wall 11 (strictly, the portion of the enclosure wall 11 facing the opening on the indoor side of the drainage member-side vent hole 16). Thereby, the movement direction of the air which has been moved in the direction which penetrates the face material 4 and the draining member 5 is changed so that it bends approximately 90 degrees as shown in FIG. Thereafter, the air moves between the drainage member 5 and the steel beam 2 along the extending direction of the steel beam 2.

  In addition, since the surrounding wall 11 is provided in the position facing the drainage member side ventilation hole 16, it is assumed that rain water etc. are mixed in the air which passes the face material side ventilation hole 15 and the drainage member side ventilation hole 16. Also, the surrounding wall 11 can prevent rainwater and the like from further entering the indoor side.

  The air that has moved between the drainage member 5 and the steel frame beam 2 eventually enters the sleeve 13 from the tip opening (the opening on the outdoor side) of the sleeve 13 and moves inside the sleeve 13. Thus, the air passes through the through holes 17 of the steel frame beam 2 and reaches the inter-floor space V when it comes out of the sleeve 13.

  In the building H of this embodiment, although the ventilation of the inter-floor space V is performed by the ventilation structure described above, a configuration for performing ventilation more appropriately is further adopted.

  Specifically, in the present embodiment, as can be seen from FIGS. 1, 4, 6, and 7, the vent holes 14 (strictly speaking, the face material side vent holes 15 and the water removing member side vent holes 16) The through holes 17 are provided at different positions in the row direction and the vertical direction. Corresponding to this, the enclosure wall 11 and the sleeve 13 are also disposed at different positions in the row direction and the vertical direction.

  That is, in the building H of the present embodiment, the arrangement positions of the surrounding wall 11 and the sleeve 13 are shifted from each other between the drainage member 5 and the steel frame beam 2. Thus, the enclosure wall 11 and the sleeve 13 are appropriately disposed between the drainage member 5 and the steel frame beam 2 without interfering with each other because the disposition positions of the enclosure wall 11 and the sleeve 13 are shifted.

  In the present embodiment, as shown in FIG. 7, the through hole 17 is provided above the vent hole 14. Therefore, as shown in FIG. 7, the air that has passed through the vent hole 14 (strictly speaking, the vent hole 16 on the draining member side) rises in the process of moving toward the through hole 17 and then passes through the through hole 17 (That is, move within the sleeve 13).

  Further, in the present embodiment, as shown in FIGS. 1 to 7, the dividing wall 12 is adjacent to the surrounding wall 11 in the column direction between the drainage member 5 and the steel frame 2 (strictly speaking, It is provided so as to be adjacent to the enclosure wall 11 downstream of the enclosure wall 11 in the air movement direction. The partition wall 12 is provided between the drainage member 5 and the steel frame beam 2 in order to partition the installation space S1 where the refractory material 7 is installed and the non-installation space S2 located on the outdoor side of the installation space S1. There is. Here, the non-installation space S2 is a space adjacent to the installation space S1 across the partition wall 12 in the inter-beam direction, and more strictly, is located indoors more than the drainage member 5 and the steel frame beam 2 It is a space located on the outdoor side of the end on the outdoor side of the flange portion 2a.

  The partition wall 12 is made of a steel plate bent into a box shape with a bottom, and is attached to the surface of the indoor side of the drainage member 5 so as to surround a certain space with the drainage member 5. That is, the partition wall 12 is provided to be in contact with the indoor surface of the drainage member 5. The space surrounded by the draining member 5 and the partition wall 12 is a space in which the upper end is opened and the space other than the upper end is closed by the draining member 5 or the partition wall 12.

  Moreover, in this embodiment, as can be seen from FIGS. 2, 5 and 6, a space surrounded by the drainage member 5 and the partition wall 12 (in other words, a space adjacent to the partition wall 12 in the non-installation space S2). Is in communication with the space enclosed by the enclosure wall 11 and is strictly continuous. Then, the two spaces (that is, the space surrounded by the drainage member 5 and the partition wall 12 and the space surrounded by the enclosure wall 11) which are in communication with each other form the air passage of the air passing through the air vent 14 There is no.

  By providing the partition wall 12 as described above and partitioning the installation space S1 and the non-installation space S2, the ventilation path is appropriately secured between the water draining member 5 and the steel frame beam 2 . To explain more clearly, in the configuration in which the partition wall 12 is not provided, the ventilation path is blocked by the refractory material 7 due to the displacement of the arrangement position of the refractory material 7 or the swelling of the refractory material 7 itself as shown in FIG. There is a risk of FIG. 8 is a view showing a state in which the ventilation path is blocked by the refractory 7.

  On the other hand, in the present embodiment, the installation space S1 and the non-installation space S2 are physically partitioned by providing the partition wall 12. Thereby, in the present embodiment, it is possible to avoid a situation where the ventilation path is blocked by the refractory material 7. In the present embodiment, the partition wall 12 (strictly, a portion of the partition wall 12 extending along the extension direction of the steel frame beam 2) is a bar of the fireproof material 7 installed in the installation space S1. It is in contact with the outer surface.

  As shown in FIGS. 1 and 4, the end face of the portion of the sleeve 13 which protrudes from the opening on the outdoor side of the through hole 17 is a portion of the partition wall 12 in contact with the surface of the refractory 7 on the outdoor side. It abuts. Describing in more detail, the partition wall 12 is formed with a wall through hole 19 which is a circular hole-like through hole. The wall through hole 19 corresponds to a second through hole, and overlaps the opening on the outdoor side of the sleeve 13 in a state where the tip end surface of the projecting portion of the sleeve 13 is in contact with the partition wall 12. That is, the through-hole 17 of the steel frame beam 2 and the wall through-hole 19 of the partition wall 12 are provided at the same position in the row direction and the vertical direction. Thus, the air moving in the space surrounded by the draining member 5 and the partition wall 12 in the ventilation path formed between the draining member 5 and the steel frame beam 2 passes through the through-hole 19 through the wall through-hole 19 ( In other words, it will pass through the inside of the sleeve 13).

  Moreover, in the present embodiment, the surrounding wall 11 and the dividing wall 12 are integrated as one part. More specifically, in the present embodiment, one steel plate is bent so as to have a predetermined shape (as illustrated in FIG. 2 in a top view). It constitutes both sides. Thereby, when attaching enclosure wall 11 and partition wall 12 to drainage member 5, it is possible to attach both walls simultaneously, construction of building H (specifically, the ventilation structure between floors is built) Work) becomes easier.

<< Other Embodiments >>
Although the example of the building of the present invention has been described above by way of example, embodiments of the present invention can be considered other than the above-described embodiment. For example, in the above embodiment, although the vent holes 14 and the through holes 17 are at different positions in both the direction of the row and the vertical direction, the present invention is not limited to this. For example, the vent holes 14 and the through holes 17 may be in mutually different positions only in one of the direction of the row and the direction of the vertical.

  Moreover, in said embodiment, although the enclosure wall 11 and the partition wall 12 integrated as one component, it is not limited to this. The enclosure wall 11 and the partition wall 12 are respectively constituted by separate members and may be separated from each other.

Further, in the above embodiment, the ventilation structure for ventilating the floor space V in the multi-storey 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 a 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 support, but the other configuration is the same as the above-described ventilation structure (structure for ventilating the floor space V). .
The ventilation structure of the present invention can also be used when ventilating each space in the case where a ventilated space is provided both under the roof and between floors.
Furthermore, the ventilation structure of the present invention can also be used when the interior of a room such as a living room is a ventilated space.

  Further, in the above embodiment, in ventilating the ventilated space (specifically, the inter-floor space V), the air having passed through the vent holes 14 of the outer wall portion 1 passes through the through holes 17 of the steel frame beam 2 to the ventilated space Although the case to be led has been described as an example, it is not limited thereto. That is, the present invention can also be applied to the case of discharging the air in the ventilated space to the outside air through the through holes 17 of the steel frame 2 and the vent holes 14 of the outer wall 1 in ventilating the ventilated space.

1 Outer wall 2 Steel beam (beam)
2a Flange portion 2b Web portion 3 Outer wall panel 4 Face material 5 Draining member 6 Floor panel (supported body)
7 Refractory material 11 Enclosure wall 12 Partition wall 13 Sleeve (cylindrical member)
14 vent hole 15 face member side vent hole 16 draining member side vent hole 17 through hole 18 sleeve through hole 19 wall through hole (second through hole)
20 fire dampers 21 hood H building S1 installation space S2 non-installation space V floor space (ventilated space)

Claims (9)

A building with a ventilated space,
An outer wall provided at the outer edge of the building;
A beam provided parallel to the outer wall,
A vent formed in the outer wall to ventilate the ventilated space;
A through hole formed in the beam and provided at a position closer to the ventilated space than the vent in a passage of air when ventilating the ventilated space;
A first member at least a part of which is adjacent to the vent between the outer wall and the beam;
A second member at least a part of which is adjacent to the through hole between the outer wall and the beam;
A building characterized in that the vent holes and the through holes are in different positions in a direction intersecting the direction in which the outer wall portion and the beam are arranged. The second member is a cylindrical member which is inserted into the through hole and a portion thereof protrudes from an opening on the outdoor side of the through hole,
The building according to claim 1, wherein the interior of the cylindrical member and the ventilated space communicate with each other. The first member is an enclosure wall disposed to surround an opening on the indoor side of the vent,
The building according to claim 1 or 2, wherein the space surrounded by the surrounding wall and the space outside the building communicate with each other through the vent. A refractory material provided between the outer wall portion and the beam so as to be adjacent to the end face on the outdoor side of the web portion of the beam;
Between the outer wall portion and the beam, an installation space in which the refractory material is installed, and a partition wall provided to divide a non-installation space located on the outdoor side of the installation space. The building according to claim 3, characterized in that The partition wall is provided between the outer wall portion and the beam so as to be adjacent to the enclosure wall.
In the non-installation space, a space adjacent to the partition wall and a space surrounded by the surrounding wall are continuous with each other, and form an air flow path of air having passed through the air hole. The building according to claim 4. The partition wall is provided with a second through hole,
The building according to claim 5, wherein the through hole and the second through hole are at the same position in a direction intersecting the direction in which the outer wall portion and the beam are arranged.   The building according to any one of claims 1 to 6, wherein the vent holes and the through holes are at different positions in the extending direction of the beam. The outer wall portion includes a facing exposed on the outdoor side, and a drainage member disposed indoors more than the facing.
The air vent has a face material side air vent provided in the face material and a water removing member side air vent provided in the water removing member.
The first member is provided in contact with the indoor surface of the drainage member,
The face material side vent hole and the drainage member side vent hole are in the same position in the direction intersecting with the direction in which the outer wall portion and the beam are arranged. The building described in. A support is provided immediately above the vented space to partition the vented space, and is supported by the beam.
The building according to any one of claims 1 to 8, wherein the support is made of lightweight cellular concrete.

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