JP6826909B2 - Wind escape structure at the entrance and exit of the building, and wind escape method at the entrance and exit of the building - Google Patents

Description

The present invention relates to a wind escape structure at the entrance and exit of a building and a wind escape method at the entrance and exit of a building.

Conventionally, as a structure for reducing wind for passersby passing near the entrance / exit of a building, for example, the one described in Patent Document 1 is known. In this structure, the door of the doorway has a double structure. That is, a front door and a rear door are provided, and the space between the two doors is configured as a windbreak room.

JP-A-2009-264089

Here, it is required to reduce the wind for passersby near the doorway on the outside of the building. With the above configuration, it is possible to reduce the wind for passersby inside the building, but the effect of reducing the wind for passersby outside the building is insufficient.

An object of the present invention is to provide a wind escape structure and a method for a building entrance / exit that can reduce the wind for passersby near the entrance / exit on the outside of the building.

The wind escape structure at the entrance / exit of a building according to the present invention is a wind escape structure at the entrance / exit of a building that allows the wind blown into the entrance / exit of the building to escape, and is formed on one side wall of the building and above the entrance / exit. The roof comprises a roof that is formed and extends toward the front side of the building, and the roof is separated from the side wall on the upper side of the doorway to form a gap between the base end and the side wall of the roof. ..

The wind escape structure of the entrance / exit of the building according to the present invention is formed on the upper side of the entrance / exit and includes a roof extending toward the front side of the building. By separating the roof from the side wall portion on the upper side of the doorway, a gap is formed between the base end portion and the side wall portion of the roof. Therefore, some of the winds blown from the outside of the building toward the doorway flow into the gap between the base end and the side wall of the roof. That is, a part of the wind can be released upward. As a result, the wind speed of the wind toward the doorway can be reduced. In addition, the wind speed of the head wind that is folded back at the doorway and blown from the doorway side can also be reduced. As a result, it is possible to reduce the wind for passersby near the doorway on the outside of the building.

Further, the wind escape structure of the entrance / exit of the building according to the present invention is formed at the upper edge of the entrance / exit, further includes an eaves extending toward the front side of the building, and the base end of the roof is separated upward from the eaves. It may be arranged at the desired position. As a result, by guiding the wind at the eaves portion, it becomes easier to catch the wind that escapes to the gap between the base end portion and the side wall portion of the roof.

Further, in the wind escape structure of the entrance / exit of the building according to the present invention, the side wall portion has a first wall surface arranged at least at a position corresponding to the entrance / exit in the horizontal direction in which the side wall portion spreads when viewed from above. It has a second wall surface that is arranged at a position different from the first wall surface, and the first wall surface may be formed on the rear side of the building with respect to the second wall surface. As a result, the first wall surface near the doorway is recessed to the rear side, so that it is easy to catch the wind that escapes to the gap between the base end portion of the roof and the first wall surface. Further, since the first wall surface is formed on the rear side, it becomes easier to secure the gap.

Further, the wind escape structure of the entrance / exit of the building according to the present invention may be further provided with a blocking portion which is formed at a position separated in front of the entrance / exit and blocks the wind toward the entrance / exit. As a result, the wind speed can be reduced by blocking the wind toward the entrance / exit by the blocking unit. In addition, the wind pressure near the entrance / exit can be reduced. In this way, by reducing the wind pressure, the air pressure difference from the inside of the building can be reduced, so that the wind blown into the building from the entrance / exit can be reduced.

Further, the method for escaping the wind at the entrance / exit of a building according to the present invention is a method for escaping the wind at the entrance / exit of a building that allows the wind blown into the entrance / exit of the building to escape. In addition, a roof extending toward the front side of the building is formed, and the roof is separated from the side wall portion on the upper side of the doorway to form a gap between the base end portion of the roof and the first wall surface.

According to the wind escape method for the entrance and exit of a building according to the present invention, the same action and effect as the wind escape structure for the entrance and exit of the building can be obtained.

According to the present invention, it is possible to reduce the wind for passersby near the doorway on the outside of the building.

FIG. 1 is a diagram showing a wind escape structure at an entrance / exit of a building according to an embodiment of the present invention. FIG. 2 is a diagram showing a wind escape structure at the entrance and exit of the building according to the modified example. FIG. 3 is a diagram showing a wind escape structure at the entrance and exit of the building according to the modified example. FIG. 4 is a diagram showing a wind escape structure at the entrance and exit of the building according to the modified example. FIG. 5 is a diagram showing a wind escape structure at the entrance and exit of the building according to the modified example.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or equivalent elements are designated by the same reference numerals, and duplicate description will be omitted.

FIG. 1A is a schematic configuration diagram of a wind escape structure at an entrance / exit of a building according to an embodiment of the present invention as viewed from the side. FIG. 1B is a schematic view of the wind escape structure at the entrance / exit of the building according to the embodiment of the present invention as viewed from above. In the present embodiment, the building 1 is a building having a plurality of floors (here, three floors). The use of the building 1 in which the wind escape structure 100 is adopted is not particularly limited, and examples thereof include applications such as hotels, shopping malls, factories, and office buildings. The shape of the building is not particularly limited, but a building with a wide building in the low-rise area where the entrance is arranged is more effective. Further, the present invention is more effective when a monsoon (strong wind) is expected to blow in the direction in which the entrance is arranged (the direction in which the door opens). For example, in a building such as a hotel where the orientation of guest rooms is prioritized, there is a possibility that the positional relationship will be met.

The wind escape structure 100 according to the present embodiment includes an entrance 2 and a roof 6. In the following description, of the horizontal directions, the direction away from the building is referred to as "front", and the direction toward the inside of the building is referred to as "rear". Further, the direction in which the side wall portion 3 described later spreads in the horizontal direction is referred to as a "width direction", and the direction orthogonal to the side wall portion 3 is referred to as a "front-back direction".

An entrance 2 for passers-by to enter and exit is formed on the first floor of the building 1. The doorway 2 is formed on one side wall portion 3 of the building 1. The doorway 2 has a double door structure having a front door 2a and a rear door 2b. Therefore, the windbreak chamber 4 is formed between the front door 2a and the rear door 2b. In the figure, the windbreak chamber 4 is hatched. When viewed from above (see FIG. 1B), the side wall portion 3 has at least the entrance / exit 2 in the horizontal direction in which the side wall portion 3 spreads (the direction in which the wall surfaces 3A and 3B extend in FIG. 1B). It has a first wall surface 3A arranged at a corresponding position and a second wall surface 3B arranged at a position different from the first wall surface 3A. Here, the side wall portion 3 has a first wall surface 3A arranged above the doorway 2 and a second wall surface 3B arranged at a position different from the doorway 2 in the horizontal direction. However, in the present embodiment, the first wall surface 3A and the second wall surface 3B form the same surface. The first wall surface 3A does not have to be directly above the entrance / exit 2, and may be arranged at a position shifted in the front-rear direction (see, for example, FIG. 2C described later).

The roof 6 is formed on the upper side of the doorway 2 and extends toward the front side of the building 1. The roof 6 may be inclined with respect to the horizontal direction or may extend in the horizontal direction. In the present embodiment, the roof 6 is inclined diagonally upward toward the front side. The inclination angle is not particularly limited, but may be, for example, 45 ° or less. This makes it easier to collect the wind that blows into the doorway 2 side. The roof 6 has a plate-like structure that is rectangular when viewed from above. The size of the roof 6 in the front-rear direction is not particularly limited, but it may have a size enough to cover a large vehicle such as a bus that stops in front of the doorway 2. The size of the roof 6 in the width direction is not particularly limited, but may be larger than the size of the doorway 2 (that is, the first wall surface 3A) in the width direction. As a result, the roof 6 can be used as a parking lot or an event space.

The roof 6 is separated from the first wall surface 3A of the side wall portion 3 arranged above the doorway 2. As a result, a gap 8 is formed between the base end portion 6a of the roof 6 and the first wall surface 3A. The size of the gap 8, that is, the separation distance between the base end portion 6a of the roof 6 and the first wall surface 3A in the front-rear direction is not particularly limited, but is sufficient to allow a part of the wind blown toward the entrance / exit 2 to pass through. The separation distance is required. Further, if the separation distance becomes too large, it becomes difficult for wind to flow in, so the separation distance is set within a predetermined range. The position of the base end portion 6a of the roof 6 in the vertical direction is not particularly limited, but may be set at least higher than the upper end of the doorway 2. However, if the position of the base end portion 6a of the roof 6 is too high, the wind may not flow into the gap 8, so the position is set near the upper end of the doorway 2. In the present embodiment, the base end portion 6a of the roof 6 is arranged at a position corresponding to the second floor of the building 1.

Next, the actions and effects of the wind escape structure 100 and the wind escape method according to the present embodiment will be described.

First, as a comparative example, a structure provided with an eaves connected to the vicinity of the upper edge of the doorway 2 of the building 1 will be described. The eaves portion is connected to the first wall surface 3A without a gap, and is inclined downward toward the front side. In the case of the structure according to such a comparative example, the wind speed near the entrance / exit 2 is high, and a headwind that is turned back at the entrance / exit 2 also occurs.

On the other hand, the wind escape structure 100 of the doorway 2 of the building 1 according to the present embodiment is formed on the upper side of the doorway 2 and includes a roof 6 extending toward the front side of the building 1. The roof 6 is separated from the first wall surface 3A arranged on the upper side of the doorway 2 in the side wall portion 3, so that there is a gap between the base end portion 6a of the roof 6 and the first wall surface 3A. 8 is formed. Therefore, of the winds blown from the outside of the building 1 toward the doorway 2, a part of the winds W1 flows into the gap 8 between the base end portion 6a of the roof 6 and the first wall surface 3A. That is, a part of the wind W1 can be released upward. As a result, the wind speed of the wind W2 toward the doorway can be reduced. Further, the wind speed of the head wind W3 that is folded back at the doorway and blown from the doorway 2 side can also be reduced. As a result, it is possible to reduce the wind for passersby near the doorway 2 on the outside of the building 1.

Further, the wind escape method of the doorway 2 of the building 1 according to the present embodiment is a wind escape method of the doorway 2 of the building 1 that allows the wind blown into the doorway 2 of the building 1 to escape. The doorway 2 is formed on one side wall portion 3 of the building 1, forms a roof 6 extending toward the front side of the building 1 on the upper side of the doorway 2, and is arranged above the doorway 2 in the side wall portion 3. By separating the roof 6 from the first wall surface 3A, a gap is formed between the base end portion 6a of the roof 6 and the first wall surface 3A.

According to the wind escape method of the doorway 2 of the building 1 according to the present embodiment, the same action and effect as the wind escape structure 100 of the doorway 2 of the building 1 can be obtained.

The present invention is not limited to the above-described embodiments.

For example, as shown in FIG. 2A, the eaves portion 11 may be added. That is, the wind escape structure 100 is further provided with an eaves portion 11 formed at the upper edge portion of the doorway 2 and extending toward the front side of the building 1. In this case, the base end portion 6a of the roof 6 may be arranged at a position separated upward from the eaves portion 11. As a result, by guiding the wind with the eaves portion 11, it becomes easy to catch the wind W1 that escapes to the gap 8 between the base end portion 6a of the roof 6 and the first wall surface 3A. As a result, the wind W2 toward the doorway 2 can be further reduced, and the wind W3 that turns back can also be reduced. The length of the eaves 11 is not limited. However, the eaves portion 11 may be lengthened in terms of widening the range where the wind speed is low on the ground surface. In the form of FIG. 2A, the tip end portion 11a of the eaves portion 11 is arranged in front of the base end portion 6a of the roof 6. As a result, it is possible to prevent a part of the wind W1 near the gap 8 from heading toward the entrance / exit 2. In addition, the effect of rain protection can be obtained. However, the position of the tip end portion 11a of the eaves portion 11 is not particularly limited, and may be the same as the base end portion 6a of the roof 6 in the front-rear direction, or may be arranged on the rear side.

Further, as shown in FIG. 2B, a roof 16 having a curved lower surface 16b may be adopted. The lower surface 16b is curved so as to draw a gentle convex toward the lower side. As described above, since the lower surface 16b is a curved surface, the flow of the wind W1 can be smoothed. As a result, the turbulence of the wind flow near the entrance / exit 2 can be reduced.

Further, as shown in FIG. 2C, the position of the entrance / exit 2 may be set back to the rear side of the first wall surface 3A. By retreating the position of the entrance / exit 2 in this way, the momentum of the blowing wind W2 can be weakened, and a wide region with a low wind speed can be secured.

Further, a protrusion protruding upward may be formed on the tip portion 11a of the eaves portion 11. As a result, the effect that the tip portion 11a of the eaves portion 11 bounces up the wind and easily guides the wind to the gap 8 can be obtained. Further, a through hole may be formed at an intermediate position in the front-rear direction of the eaves portion 11. As a result, a part of the wind W2 can be released upward in the area in front of the doorway 2. Therefore, the wind speed in the region two before the entrance / exit can be further reduced. Further, in any of the above-described embodiments, the roof 6 may be inclined in the opposite direction so as to be inclined downward toward the front side.

Further, as shown in FIGS. 3 and 4, the first wall surface 3A may be formed on the rear side of the building 1 with respect to the second wall surface 3B. As a result, the first wall surface 3A near the doorway 2 is recessed to the rear side. A stepped surface 3C is formed between the first wall surface 3A and the second wall surface 3B. The area surrounded by the first wall surface 3A on the front side of the doorway 2 and the stepped surface 3C functions as an attenuation open space 14 for reducing the force of the wind. The eaves portion 11 covers the entire damped open space 14 and projects forward from the wall surface 3B. However, the tip of the eaves portion 11 may be arranged at the same position as the second wall surface 3B or on the rear side. Further, although the base end portion 6a of the roof 6 is arranged slightly forward from the second wall surface 3B, it may extend to the same position as the second wall surface 3B or to the rear side.

As described above, in the wind escape structure 100 shown in FIGS. 3 and 4, the side wall portion 3 is arranged at at least a position corresponding to the entrance / exit 2 in the horizontal direction in which the side wall portion 3 spreads when viewed from above. It has a wall surface 3A of 1 and a second wall surface 3B arranged at a position different from that of the first wall surface 3A. The first wall surface 3A is formed on the rear side of the building 1 with respect to the second wall surface 3B. As a result, the first wall surface 3A near the doorway 2 is recessed to the rear side, so that it is easy to catch the wind W1 that escapes to the gap 8 between the base end portion 6a of the roof 6 and the first wall surface 3A. .. Further, since the attenuated open space 14 can be formed, the wind speeds of the wind W2 entering the entrance 2 and the wind W3 returning at the entrance 2 can be reduced. Further, since the first wall surface 3A is formed on the rear side, it becomes easier to secure the gap 8. Therefore, even when the eaves portion 11 cannot be extended from the second wall surface 3B of the building 1 for a long time, the size of the gap 8 can be sufficiently secured. Further, since only the entrance / exit 2 has a recessed shape, the appearance of the entire building 1 can be characterized in terms of design. In this way, the structure in which the first wall surface 3A is retracted may be provided at a plurality of locations in the longitudinal direction of the building 1.

Further, as shown in FIG. 5A, a straightening vane 26 may be added on the front side of the eaves 11 and the roof 6. The straightening vane 26 is a member for catching the wind W1 that escapes to the upper part on the upstream side. The straightening vane 26 is provided at substantially the same height as the eaves 11. Further, in the front-rear direction, the straightening vane 26 extends forward from the tip portion 6b of the roof 6. That is, the straightening vane 26 overlaps the roof 6 at a part on the rear end side, and a part on the front end side extends to the front side from the roof 6. However, the arrangement of the straightening vane 26 is not particularly limited. By providing such a straightening vane 26, the wind W1 toward the gap 8 can be guided at a position on the upstream side of the gap 8. Further, the straightening vane 26 can push down the height of the wind W2 downward (ground side) by defining the range of the wind W2 in the vertical direction. As a result, the height of the wind W3 that is turned back at the entrance / exit 2 can also be pushed downward. Due to these effects, the wind speed of the wind W3 can be further reduced. The straightening vane 26 also functions as a rain shield when a bus stop or the like is provided in front of the doorway 2.

Further, as shown in FIG. 5B, the wind escape structure 100 may include a blocking portion 17. The blocking portion 17 is formed at a position separated in front of the doorway 2 to block the wind toward the doorway 2. Any type of blocking unit 17 may be used as long as it can block the wind, and for example, a windbreak, a blocking fence, a sign board, or the like can be used. As shown in FIG. 5B, the wind W1 that has passed above the blocking portion 17 passes under the straightening vane 26 and flows so as to enter the gap 8. Therefore, the position and height of the cutoff portion 17 in the front-rear direction are set according to the relationship between the height and the distance of the straightening vane 26 and the roof 6.

From the above, the wind speed can be reduced by blocking the wind toward the entrance / exit 2 by the blocking unit 17. That is, since the amount of wind W2 toward the entrance / exit 2 can be reduced, the wind speed can also be reduced. Along with this, the wind speed of the wind W3 that is turned back at the entrance / exit 2 can also be reduced.

Further, by providing the blocking portion 17, the wind pressure in the vicinity of the entrance / exit 2 can be reduced. By reducing the wind pressure in this way, the difference in air pressure from the inside of the building 1 can be reduced, and the wind blown into the building 1 from the doorway 2 can be reduced. Here, when the blocking portion 17 is provided, if the eaves portion 11 and the roof 6 are not provided, the wind pressure in the vicinity of the entrance / exit 2 can be reduced, but the vicinity of the entrance / exit 2 is provided from above along the side wall portion 3. A wind blows down on the roof. However, since the eaves 11 and the roof 6 are provided in the present embodiment, it is possible to prevent the wind related to the blow-down. When the blocking portion 17 is provided, it is more effective to incline the roof 6 downward toward the front side from the viewpoint of wind guidance. However, as shown in the figure, the inclination direction of the roof 6 may be horizontal or may be inclined upward toward the front side.

In each of the above-described modifications, the components added to the roof have been described, but the components may be combined in any way and are not limited to the combinations shown in the drawings.

1 ... Building, 2 ... Doorway, 3 ... Side wall, 3A ... First wall, 3B ... Second wall, 6, 16 ... Roof, 8 ... Gap, 11 ... Eaves, 17 ... Block, 100 ... Wind Relief structure.

Claims (7)

It is a wind escape structure at the entrance and exit of the building that allows the wind that blows into the entrance and exit for the passersby of the building to escape.
The doorway formed on one side wall of the building,
A roof formed above the doorway and extending toward the front side of the building.
The roof is separated from the side wall on the upper side of the doorway, so that a gap is formed between the base end of the roof and the side wall to allow wind to escape upward. Wind escape structure. Further provided with an eaves formed at the upper edge of the doorway and extending toward the front side of the building.
The wind escape structure for an entrance / exit of a building according to claim 1, wherein the base end portion of the roof is arranged at a position separated upward from the eaves portion. An eaves formed on the upper edge of the doorway and extending toward the front side of the building,
A rectifying plate for catching the wind escaping to the upper part on the upstream side is further provided on the lower side of the roof and on the front side of the eaves.
The wind escape structure at the entrance / exit of a building according to claim 1, wherein the straightening vane is arranged so that a part of the rear end side overlaps with the roof in a plan view. A rectifying plate for catching the wind escaping to the upper part on the upstream side is further provided on the lower side of the roof and on the front side of the eaves.
The wind escape structure at the entrance / exit of a building according to claim 2, wherein the straightening vane is arranged so that a part of the rear end side overlaps the roof in a plan view. When viewed from above, the side wall portion is arranged at a position different from the first wall surface arranged at least at a position corresponding to the entrance / exit and the first wall surface in the horizontal direction in which the side wall portion spreads. Has a second wall surface,
The wind escape structure at the entrance / exit of the building according to any one of claims 1 to 4, wherein the first wall surface is formed on the rear side of the building with respect to the second wall surface. The wind escape structure for an entrance / exit of a building according to any one of claims 1 to 5, further comprising a blocking portion formed at a position separated in front of the entrance / exit to block the wind toward the entrance / exit. It is a method of letting out the wind that blows into the doorway for the passersby of the building to go in and out .
The doorway is formed on one side wall of the building.
On the upper side of the doorway, a roof extending toward the front side of the building is formed.
On the upper side of the doorway, by separating the roof from the side wall portion, a gap is formed between the base end portion of the roof and the side wall portion to allow the wind to escape upward, and the wind escape of the entrance / exit of the building. Method.

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