JP3172811B2 - High-rise building - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-rise building,
In particular, the present invention relates to a device capable of preventing a building from swaying due to a crosswind.

[0002]

2. Description of the Related Art As is well known, some high-rise buildings are provided with devices and mechanisms for preventing vibrations due to external forces such as earthquakes and winds. When designing such an anti-vibration device or mechanism, it is designed in consideration of vibration due to earthquake and wind, but in the case of a high-rise building having a height of about 100 to 200 m,
Vibration due to an earthquake is dominant, whereas in the case of a high-rise building of 300 m or more, vibration due to the wind rather than an earthquake often becomes dominant. As shown in FIG. 9, when the strong wind W hits the building 1 from the side as shown in FIG.
The air current is separated at the corners of the building 1 and large eddies S are generated regularly on the leeward side of the building 1.

[0003]

That is, in the above case, a fluctuating lift F is generated in the building 1 as shown by an arrow.
As a result, the building 1 rolls, and in particular, when the building 1 resonates, the rolling becomes maximum, which may lead to the destruction of the building 1 in some cases. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a high-rise building capable of preventing the building from shaking due to a crosswind.

[0004]

In order to achieve the above object, a high-rise building according to claim 1 of the present invention has a projecting portion projecting from a side wall adjacent to each other on a corner of a high-rise building body. Part is formed integrally with the building body in a state of extending vertically, and a ventilation passage penetrating toward the side wall side adjacent to each other is formed in the protruding portion by a floor of the building body projecting from the protruding portion. It is formed vertically at predetermined intervals in a state partitioned by position.

[0005]

In the high-rise building according to the first aspect, the cross wind hitting the main body of the building is controlled by the protruding portion, and a part of the wind flows smoothly through the ventilation passage, so that the conventional building is used. A vortex does not occur due to the separation of the airflow at the corners of the main body, thereby preventing the vibration of the building main body due to the vortex. Also, due to the wind flowing outside the protruding portion of the crosswind, on the leeward side of the building body,
Although there is a possibility that a slight vortex may be generated, in this case, the vibration of the building body caused by the vortex is prevented by blowing off the vortex by the wind flowing through the ventilation path.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a high-rise building according to the present invention will be described below with reference to the drawings. 1 to 4 show a first embodiment. The high-rise building 10 shown in these figures has a high-rise building body 11 having a height of about 500 m,
And four protruding portions 12 formed at the corners.

The building body 11 has a substantially square shape in a plan view, and is composed of a number of units 13 having a height of about 50 m stacked in the height direction. Each unit 13 has a multi-story structure in which a large number (for example, 12) of floor slabs are provided.
A large floor slab 15 is provided between 3 and 13. The large floor slab 15 has a substantially square shape in plan view and has the same shape as the cross section of the building body 11, and rectangular protruding pieces 15a are integrally formed at four corners thereof.

The projecting portion 12 is provided at a corner of the building body 11.
Adjacent side walls 11a, 11a of the building body 11
Are formed so as to protrude from and extend vertically, and projecting pieces 13a... Extending vertically at the corners of the respective units 13 and contacting the upper and lower end faces of these projecting pieces 13a. . Are provided in contact with each other.

[0009] A ventilation path 16 is formed in the protruding portion 12 for each unit 13. The ventilation passage 16 penetrates toward the side walls 11a and 11a of the building body 11 adjacent to each other, and has a corner cut surface 16a formed by cutting a corner of the unit 13 and a large floor slab adjacent vertically. 1
The upper and lower surfaces of the projecting pieces 15a are formed by the upper and lower surfaces of the projecting pieces 15a and the inner wall surface of the projecting piece 13a. That is, the ventilation passages 16 are formed at predetermined intervals in the vertical direction in a state of being partitioned by the projecting pieces 15 a of the large floor slab 15 projecting from the projecting portion 12. Further, each ventilation path 16 is formed to be inclined by 45 ° with respect to the side wall 11a of the building body 11 in plan view. In this embodiment, the ventilation passage 16 is not formed in the lower unit 13 of the building body 11, that is, in a portion that hardly affects the vibration due to the cross wind, but the present invention provides the ventilation passage 16 in this portion. It may be formed, or may be formed only in a portion that affects the vibration of the building body 11 due to the crosswind.

A large column (not shown) for supporting the vertical load of the building body 11 is provided vertically through each of the projecting portions 12 having the above-described structure.
A so-called infrastructure such as a plumbing pipe and information communication means, an elevator 17 and the like are provided. For example, as shown in FIG. 2 and FIG. 3, the elevator body 17 divides the building main body 11 into five sections every 24 floors, and provides the projecting piece 13a with a non-stop express that rises to the 96th and 72nd floors at once. Elevators 17a, 17b are provided, and express elevators 17c, 17 ascending to the 48th and 24th floors are provided on one corner of the building body 11.
d is further provided inside the elevators 17c and 17d, and at the other corner cut surface of the building body 11, up to the top.
A local elevator 17e that rises by floor can be provided. In this way, efficient transportation can be performed in a short time and efficiently even in a high-rise building of a 500 m class, and the living space of the building body 11 can be maximized.

In the high-rise building 10 having the above structure, as shown in FIG. 4, when a cross wind is received, the flow of the cross wind is controlled by a protruding portion 12 provided at a corner of the building body 11, and the flow is controlled. Part of the wind W1 flows smoothly through the ventilation path 16. Therefore, the eddy current does not occur due to the separation of the air current at the corners of the building body as in the related art, so that the vibration due to the eddy current can be prevented.
In addition, the wind W2 flowing outside the protruding portion 12 of the cross wind
There is a possibility that a slight eddy current S may be generated on the leeward side of the building body 11, but in this case, since the eddy current S is blown off by the wind W1, vibration of the building body 11 caused by the eddy current is prevented. can do.

Next, in order to clarify the effect of the high-rise building 10 of the above embodiment, an experiment was performed by computer simulation analysis. As a comparative example, an experiment by the same computer simulation analysis was performed on a high-rise building 20 having a corner cut at a corner.

FIGS. 5 and 6 are graphs showing the wind power over time when a cross wind is applied to the high-rise buildings 10 and 20 from the left. As is clear from these graphs, in the case of the high-rise building 20 of the comparative example, the wind power is large and the change is large, whereas the high-rise building 1 of the embodiment is large.
In the case of 0, it is understood that the wind force is extremely small and there is almost no change. The lines in FIGS. 5 and 6 indicate the wind force in the wind direction, and the thick line indicates the wind force in the direction orthogonal to the wind direction. As described above, the analysis by the computer simulation reveals that the high-rise building 10 of the embodiment can obtain a dramatic aerodynamic effect compared with the high-rise building 20 of the comparative example, that is, the ordinary high-rise building. .

FIGS. 7 and 8 show a high-rise building according to a second embodiment. The high-rise building 30 shown in these figures is 500 m
At four corners of a high-rise building main body 31 having a height of about three degrees, between adjacent side walls 31a,
Ventilation passages 32 penetrating through 31a are formed vertically at predetermined intervals.

The above-mentioned building body 31 has a square shape in plan view, and has four corners with side walls 31 of the building body 31.
A projecting portion 31b projecting by a predetermined amount from “a” is formed to extend in the height direction of the building body 31. The building body 31 is composed of a number of units 33 having a height of about 50 m, which are stacked in the height direction, similarly to the first embodiment. Each unit 33 has a multi-story structure in which a large number of floor slabs are provided, and a large-floor slab 35 having the same shape as the cross section of the building body 31 is disposed between the adjacent units 33, 33. However, as in the case of the first embodiment, the ventilation passages 32 are formed at predetermined intervals vertically in a state of being partitioned by the projecting portion of the large floor slab 35 projecting from the projecting portion 31b. The ventilation passage 32
Are formed at the four corners of each unit 33 so as to penetrate between the side walls 31a adjacent to the protruding portions 31b, 31b. It is inclined 45 °.

In the high-rise building 30 having the above structure, as shown in FIG. 8, when a crosswind is received, a part of the crosswind W1 is controlled by the protruding portion 31b to flow through the ventilation passage 32. Then, it escapes smoothly to the back side (leeward side) of the building body 31. On the other hand, the side wall 31 of the building body 31
The wind W2 flowing along the a and 31a causes separation of the airflow at the corners of the building main body 31 and tends to generate a vortex S on the back side of the building main body 31, but before the vortex S grows greatly, Since it is blown off by the wind W1, the vibration of the building body 31 caused by the vortex S can be prevented.

[0017]

As described above, according to the high-rise building of the first aspect of the present invention, at the corner of the high-rise building main body, the protruding portions projecting from the mutually adjacent side walls of the building main body are formed. In this protruding portion, a ventilation passage penetrating toward the side wall adjacent to each other is formed, so that the flow of the cross wind hitting the building body is controlled by the protruding portion, and a part of the wind is smoothly passed through the ventilation passage. Flows. Therefore, the eddy current does not occur due to the separation of the air current at the corners of the building body as in the related art, so that the vibration due to the eddy current can be prevented. Further, there is a possibility that a slight eddy current is generated on the leeward side of the building main body due to the wind flowing outside the projecting portion of the cross wind, but in this case, the eddy current is blown off by the wind flowing through the ventilation path. In addition, the vibration of the building body caused by the eddy current can be prevented. In addition, since no eddy current is formed on the back side (leeward side) of the building body, the back pressure does not decrease, and accordingly, the wind force in the wind direction also extremely decreases. In particular, since the projecting part for providing the ventilation path is formed integrally with the building body, the projecting part and the ventilation path can be constructed at the same time as the building body is constructed, and no special equipment or equipment is required. Construction is easy and no maintenance is required. In addition, since the ventilation path is formed at predetermined intervals vertically in a state where the ventilation path is divided by the floor of the building body at a predetermined position, the ventilation path can be freely partitioned so that the generation of the vortex can be suppressed most effectively, and the partition position can be set. It can be set freely.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a schematic configuration of a high-rise building according to a first embodiment of the present invention.

FIG. 2 is a plan view showing a main part of the high-rise building of the first embodiment of the present invention.

FIG. 3 is a side view schematically showing the state of the elevator in the high-rise building of the first embodiment of the present invention.

FIG. 4 is a plan view showing a flow of wind in the high-rise building of the first embodiment of the present invention.

FIG. 5 is a graph showing wind power over time when a cross wind is applied to the high-rise building of the first embodiment of the present invention.

FIG. 6 is a graph showing wind power over time when a cross wind is applied to a high-rise building of a comparative example.

FIG. 7 is a perspective view of a main part showing a schematic configuration of a high-rise building according to a second embodiment of the present invention.

FIG. 8 is a plan view showing a main part of a high-rise building according to a second embodiment of the present invention together with a flow of wind.

FIG. 9 shows the main parts of a conventional high-rise building with the flow of wind
FIG.

[Description of Signs ] 10,30 High-rise building 11,31 Building body 12,31b Projection 13,33 Unit 15,35 Large floor slab (floor)

Claims (1)

(57) [Claims] 1. A protruding portion projecting from an adjacent side wall of a high-rise building main body is formed integrally with a building main body in a state of extending vertically in a corner portion of the high-rise building main body.
The ventilation passage penetrating toward the side wall side adjacent to each other,
A high-rise building characterized by being formed vertically at predetermined intervals in a state of being divided at a predetermined position by a floor of a building body projecting from the projecting portion.