JP3200775B2 - 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 the vibration due to the earthquake and the wind. In the case of a high-rise building with a height of about 100 to 200 m, the vibration due to the earthquake is dominant. On the other hand, 300m
In the case of the above high-rise buildings, vibrations caused by the wind rather than the earthquake often become dominant. As shown in FIG. 6, when a strong wind W hits the building 1 from the side, the wind is separated from the wind at the corners of the building 1, and a large vortex S is regularly generated on the leeward side of the building 1. It happens to do.

[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 comprises a high-rise building main body and a space truss structure provided around the building main body. The building body has corners cut off in the height direction of the building body, and the space truss structure is spaced apart from the building body near the corner of the building body. It consists of a plurality of large erected pillars and a three-dimensional truss that connects these large stanchions.
Large floor slabs of the building body formed at predetermined intervals above and below are connected.

According to a second aspect of the present invention, there is provided a high-rise building according to the first aspect, wherein the large support is provided with a control wing for controlling the flow of the cross wind hitting the building body.

According to a third aspect of the present invention, there is provided a high-rise building comprising a high-rise building body, and a space truss structure provided outside the building body.
The three-dimensional truss structure is erected in a state where at least a part thereof is exposed to the outside of the building main body. It is provided so as to extend up and down over the entire height of the building main body by being formed of a number of beams connecting the large columns.

[0007]

In the high-rise building according to the first aspect, the cross wind hitting the main body of the building is partly flowed smoothly between the large column and the corner section, so that the cross wind hits the corner of the conventional main body. The vortex does not occur due to the separation of the airflow, and thereby the vibration of the building body due to the vortex is prevented. Also,
There is a possibility that a slight vortex may be generated on the leeward side of the main body of the building due to the wind flowing outside the large strut among the cross winds. In this case, the wind flowing between the large strut and the corner cut surface may be generated. This prevents the vibration of the building body caused by the eddy current.

[0008] In the high-rise building according to the second aspect, the control wings provided on the large pillars allow the cross wind hitting the building body to flow smoothly and appropriately between the large pillars and the corner cut surfaces, so that the building can be constructed. The vibration prevention effect of the main body is made higher.

In the high-rise building according to the third aspect, even if a vortex is generated on the leeward side of the building due to the crosswind hitting the building, the three-dimensional truss structure hinders the generation of the vortex and the vibration caused by the vortex. To prevent

[0010]

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 is 5
A building body 11 having a height of about 00 m;
And a space truss structure 12 provided around the main body.

The building body 11 has a substantially square shape in plan view, and four corners thereof are cut off in the height direction of the building body 11. Also, the building body 11
Each unit 14 is composed of a large number (for example, 12 units) stacked in the height direction.
Floor slabs are provided to form a multi-story structure.
A large floor slab 15 is provided between the adjacent units 14, 14, and four corners of the large floor slab 15 are
The building body 11 is projected from a corner cut surface 16 formed by corner cutting. In addition, the code | symbol 17 in a figure is the building main body 1.
1 shows a main pillar extending in the height direction of FIG.

The space truss structure 12 is configured as follows. In the vicinity of the corner of the building body 11, that is, at a position separated from the corner cut surface 16 by a predetermined distance, the large pillars 20 are vertically provided, respectively. The large pillar 20 has a diameter larger than that of the main pillar 17 and the height thereof is set substantially equal to that of the building body 11. A column 21 is erected in parallel with the large column 20 at a position horizontally separated from the large columns 20, 20 adjacent to each other in the circumferential direction of the building main body 11 at an equal distance in the horizontal direction. These four columns 21 are slightly smaller in diameter than the large columns 20, and their heights are set to be substantially equal to the height of the building body 11 (however, the upper part of the columns 21 is omitted in FIG. 1). ).

Each of the columns 21 passes through a predetermined position, that is, the center of gravity of the side surface 14a of each unit 14 and
One end of four diagonal members 22... is connected to an intersection K between an axis orthogonal to a and each column 21, and the other ends of these four diagonal members 22. 4 of side 14a
It is connected to the large columns 20, 20 located near the corners. That is, using one side surface 14a of each unit 14 as one unit, four ends of four diagonal members 22 forming four ridges of a quadrangular pyramid are connected to the large columns 20, 20, respectively, and the top K is connected to the column 21. Are arranged on the four side surfaces 14a of each unit 14, respectively, and the top K of the truss body 23 adjacent in the height direction of the building body 11 is Are linked.

As described above, a space truss 24 is formed by extending a large number of trusses 23... Together with the four columns 21... Around the building body 11. The space truss structure 12 is formed by connecting the columns 20.

Also, the main body 20 is provided with the main body 11 of the building.
Each of the large floor slabs 15 formed above and below at predetermined intervals, that is, between the units 14 adjacent to each other.
Are connected. This connection is made by connecting the intersection of the four beams 15a forming the outer peripheral edge of the large floor slab 15 to the connection between the large strut 20 and the diagonal member 22. By connecting the large floor slabs 15 to the large columns 20 in this manner, the three-dimensional truss structure 12 receives the vertical load of the building body 11.

Further, control wings 25, which protrude from the large struts 20 toward the struts 20, 20, and control the flow of the cross wind hitting the building body 11, are provided on the large struts 20.
25 are provided. This control wing 25 is
The vertical edge of the strip is supported and fixed to a column 26 erected in parallel with and separated from the large column 20.

In the high-rise building 10 configured as described above, as shown in FIG.
1 is cut off at the corner, and the control blade 25 is provided at a portion facing the corner cut surface 16, so that the flow of the cross wind is controlled by the control blade 25, and a part of the wind is controlled. W1 flows smoothly between the control wing 25 and the corner cut surface 16. Therefore, the eddy current does not occur due to the separation of the air current at the corners of the building body 11 as in the related art, so that the vibration due to the eddy current can be prevented. Further, due to the wind W2 flowing outside the control wing 25 of the cross wind, a slight vortex S
However, in this case, since the vortex S is blown off by the wind W1, the vibration of the building body 11 caused by the vortex S can be prevented.

A part of the vertical load of the building body 11 is
Since the space truss structure 12 can support the force acting on the building body 11 by an external force such as an earthquake or wind, the space truss structure 12 can support the force.
Even if the building body 11 is formed as a slender, that is, even if the height ratio of the building body 11 to the building area is large, it is possible to obtain a building having the same strength as the conventional one, and the top and the base of the building body 11 can be obtained. It is also possible to make the same area, that is, it is not necessary to construct the skirt as it approaches the base, so that the building area can be minimized.

Further, since the inner building body 11 is supported by the outer space truss structure 12, the shape (proportion) of the building body 11 can be freely designed to some extent. In addition, various facilities can be provided by utilizing the internal space of the space truss structure 12. For example, if a shuttle elevator is provided on the large column 20 of the space truss structure 12 and the units 14 of the building main body 11 are connected at predetermined intervals by this elevator, transportation in a short time is possible even in a high-rise building.
Further, it is also possible to provide so-called infrastructures such as transmission lines, water supply / drainage pipes, information communication means, and the like on the large support 20, and in this case, the living space of the building body 11 can be maximized. .

Further, when this high-rise building 10 is constructed, various construction methods can be adopted. For example, if the unit 14 of the building body 11, the truss body 23 of the three-dimensional truss structure 12, and the large strut 20 are sequentially assembled from the bottom, the building body 11 is constructed while being supported by the truss body 23 and the large strut 20. On the other hand, since the large strut 20 can be constructed while being supported by the building body 11 and the truss body 23, the high-rise building 10 can be constructed safely and reliably, and the construction period can be shortened. be able to.

If the space truss structure 12 is constructed slightly ahead of the building body 11, a tower crane or the like is installed on each of the four large struts 20 and the struts 21 of the space truss structure 12. So you can build and go
The construction period can be shortened. Further, in any of the above two construction methods, the space truss structure 12
Can be used as a scaffold, so that it is not necessary to provide a new scaffold, and the scaffold after construction can be dismantled in a short time.

In the above embodiment, the control wing 25 for controlling the cross wind received by the building body 11 is constituted by a single strip extending along the large column 20, but is not limited to this. A plurality of strips may be provided at predetermined intervals along the large support 20, or the large support 20 may have a diameter of about 4 m. In this case, the cross wind can be controlled without providing the control wing 25.

FIG. 5 shows a high-rise building according to a second embodiment of the present invention. The high-rise building 30 of this embodiment has a high-rise building body 3.
1 and a space truss structure 32 provided outside the building body 31. Building body 3
1 is a large number of units 1 as in the case of the first embodiment.
4 in the height direction .
In place of the large strut 20, the four main corners of the building body 31
The pillar 33 is erected. And this big pillar 3
3 is partly exposed outside the building body 31
Have been.

A space truss structure 32 is connected to each of the large columns 33. The three-dimensional truss structure 32 is configured symmetrically with respect to a diagonal line of the building body 31 in a plan view, and includes four columns 34 erected from the large column 33 at a predetermined distance, and these columns 34. 34, and a large number of beams 35 connecting the two columns 34, 34 and the large column 32 are formed as main constituents , whereby the entire building body 31 extends over the entire height.
It is provided to extend up and down.

In the high-rise building 30 having the above structure, when a cross wind is received, the space truss structures 32 are connected to the large pillars 33 at the corners of the building body 31, respectively. Therefore, even if an eddy current is generated, the three-dimensional truss structure 32 prevents the eddy current from being generated.

Incidentally, also in the case of the second embodiment,
As in the first embodiment, a part of the vertical load of the building body 31 is supported by the space truss structure 32 and the force acting on the building body 31 by external force such as an earthquake or wind is applied to the space truss structure 32. Therefore, even if the building body 11 is formed as a slender body, a building having the same strength as that of the related art can be obtained, and the building area can be minimized. In addition, various facilities can be provided using the internal space of the space truss structure 32. Further, when the high-rise building 30 is constructed, various construction methods can be adopted similarly to the first embodiment, and the construction period can be shortened.

[0027]

As described above, according to the high-rise building of claim 1 of the present invention, the corner of the building body is cut off,
A three-dimensional truss structure including a plurality of large struts erected from the building main body, spaced apart from the building main body, and a three-dimensional truss connecting these large struts, around the corner of the building main body, around the corner of the building main body. Because of this, a part of the crosswind that hits the building body flows smoothly between the large strut and the corner cut surface. 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, there is a possibility that a slight vortex may be generated on the leeward side of the main body of the building due to the wind flowing outside the large support in the cross wind. In this case, the vortex flows between the large support and the corner cut surface. Since it is blown off by the flowing wind, it is possible to prevent the building body from vibrating due to the eddy current.

Further, since the large floor slab of the building body is connected to the large strut of the space truss structure, a part of the vertical load of the building body is supported by the space truss structure and the building body is subjected to the earthquake. Since the three-dimensional truss structure can support the force exerted by the external force such as wind and wind, a building having the same strength as the conventional one can be obtained even if the building body is formed as a slender.

Further, since the outer main body 11 is supported by the outer space truss structure, the shape (proportion) of the main body can be freely designed to some extent. Various facilities such as a shuttle elevator can be provided by utilizing the internal space of the above.

According to the high-rise building of claim 2, claim 1 is
In the above, the large stanchions are provided with control wings for controlling the flow of the cross wind received by the building main body, so that the wind flowing between the large stanchions and the corner cut surfaces can flow more smoothly and appropriately. Can have a higher vibration prevention effect.

According to the high-rise building according to claim 3, for the large pillars erected on the corners of the high-rise building body building body
Since the three-dimensional truss structure provided to extend up and down over the entire height was connected, even if the vortex is generated on the leeward side of the building body due to the cross wind hitting the building body, the vortex flow is generated by the three-dimensional truss structure. Since it is obstructed, it is possible to prevent the vibration due to the eddy current.

[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 perspective view showing a main part of the high-rise building according to the first embodiment of the present invention.

FIG. 3 is a plan view showing a main part of the high-rise building according to 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 plan view showing a schematic configuration of a high-rise building according to a second embodiment of the present invention.

FIG. 6 is a plan view showing a flow of wind in a conventional high-rise building.

[Explanation of symbols]

 10, 30 High-rise building 11, 31 Building body 12, 32 Space truss structure 14 Unit 15 Large floor slab 16 Corner cut surface 20, 33 Large column 23 Truss body 24 Space truss 25 Control wing

Claims (3)

(57) [Claims] 1. A high-rise building main body, and a space truss structure provided around the building main body, wherein the building main body has a corner at a corner in a height direction of the building main body. The three-dimensional truss structure, which is cut off, is composed of a plurality of large struts erected from the building body in the vicinity of each corner of the building body, and a space truss connecting these large struts to each other. A high-rise building, wherein a large-floor slab of a building body formed at predetermined intervals above and below is connected to the large support. 2. The high-rise building according to claim 1, wherein a control wing for controlling the flow of the cross wind hitting the building body is provided on the large support. 3. A high-rise building main body, and a space truss structure provided outside the building main body. A large column is provided at a corner of the building main body, and at least a part of the main support is at least partially provided in the building. The three-dimensional truss structure is erected in a state of being exposed to the outside of the main body. The truss structure includes a plurality of stanchions erected at a predetermined distance from the main strut, and a plurality of struts connected to each other or the strut and the main strut. By being formed with the beam material, it extends up and down over the entire height of the building body
High-rise building, characterized in that provided as.