JP2009209635A - Tower-like structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tower-like structure which exerts the great shaking-reducing effect of enabling the effective reduction of shaking caused by a horizontal external force. <P>SOLUTION: This tower-like structure comprises a tubular structure (core wall 2) which is extended upward from a foundation 5, a tower structure (steel tower 3) which is extended upward from the foundation 5 so as to surround the periphery of the tubular structure, and a damper 4 which connects the tubular structure and the tower structure together. The damper 4 is installed in such a manner as to be vertically inclined with respect to a horizontal plane 11. The damper 4 is equipped with a rod-like body 14 which is formed like a rod from an operating member and a tubular casing, making a relative linear motion. A one end-side attachment portion 17 of one end of the rod-like body 14 and the tubular structure, and the other end-side attachment portion 19 of the other end of the rod-like body 14 and the tower structure are provided in vertically-displaced positions. Thus, the operating member and the tubular casing are attached in such a manner that a direction, in which the operating member and the tubular casing make the relative linear motion, is set as a direction vertically inclined with respect to the horizontal plane 11. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a tower-like structure having a high effect of reducing shaking by a damper.

A tower-like structure including a tubular structure like a cylinder, a tower structure like a steel tower surrounding the circumference of the tubular structure, and a damper connecting the tubular structure and the tower structure is known. . This damper is installed in the horizontal direction. In other words, the damper is installed so that the direction in which the damper actuating body and the cylindrical housing relatively linearly move is the horizontal direction.
JP 2007-85023 A

  It is known that in a building with a large ratio to the width of the building height (aspect ratio), bending deformation is dominant in deformation when subjected to horizontal external force. In a tower-like structure where bending deformation is dominant when subjected to horizontal external force, as in the prior art, in the case where the cylindrical structure and tower structure are connected by a horizontally installed damper, the horizontal structure When the external force is applied, the direction in which the tower-like structure bends and the direction in which the damper's actuating body and the cylindrical housing relatively move linearly differ from each other. There has been a problem that it cannot be effectively reduced.

A tower structure according to the present invention includes a cylindrical structure extending upward from a foundation, a tower structure extending upward from the foundation and surrounding the cylindrical structure, and a damper connecting the cylindrical structure and the tower structure. And the damper is installed so as to be inclined in the vertical direction with respect to the horizontal plane.
The damper includes a rod-shaped main body formed in a rod shape by an actuating body that relatively moves linearly and a cylindrical housing, and includes one end of the rod-shaped main body, one end-side attachment portion of the cylindrical structure, and the other end of the rod-shaped main body. The direction in which the working body and the cylindrical housing relatively linearly move is inclined in the vertical direction with respect to the horizontal plane by providing the tower structure and the other end side mounting portion at a position shifted vertically. It is also characterized by being mounted so as to be oriented.

  ADVANTAGE OF THE INVENTION According to this invention, the tower-like structure with the high vibration reduction effect which can reduce the vibration with respect to a horizontal external force can be provided.

1 to 3 show the best mode, FIG. 1 shows a schematic configuration of the tower-like structure, FIG. 2 shows a damper connecting the core wall and the steel tower, and FIG. 3 shows a specific structure of the tower-like structure. An example is shown.
As shown in FIG. 1, the tower-like structure 1 includes a core wall 2 as a cylindrical structure, a steel tower 3 as a tower structure, and a damper 4 that connects the core wall 2 and the steel tower 3.
The core wall 2 is, for example, a reinforced concrete cylindrical structure formed in a cylindrical shape having a square cross section (see FIG. 3), and has a configuration constructed so that the cylinder extends upward from the foundation 5.
The steel tower 3 is a tower structure formed so as to surround the periphery of the cylinder of the core wall 2 and is configured to extend upward from the foundation 5.

  For example, as shown in FIG. 3, the steel tower 3 is a column formed of a plurality of columnar members 6 made of, for example, iron pipes, which are respectively arranged at apex portions of a regular octagon surrounding the periphery of the tube of the core wall 2. A plurality of beam members 8 made of, for example, an iron pipe, arranged so as to form a regular octagonal side portion that connects the body 7 and the adjacent column members 6 to each other and surrounds the periphery of the core wall 2 Corners and sides of a rectangular frame formed by a plurality of beam bodies 9 formed at predetermined intervals in the vertical direction of the column body 7 and surrounded by column members 6 adjacent to the left and right and beam members 8 adjacent to the top and bottom. For example, the brace material 10 made of an iron pipe is provided.

  The damper 4 is installed so as to be inclined in the vertical direction with respect to the horizontal plane 11. That is, as shown in FIG. 2, the damper 4 includes a rod-shaped main body 14 formed in a rod shape by an actuating body 12 that relatively moves linearly and a cylindrical housing 13. The rod-shaped main body 14 includes a cylindrical casing 13 and an operating body 12 provided across the inside and outside of the cylindrical casing 13 on the central axis of the cylinder of the cylindrical casing 13. The actuating body 12 and the cylindrical housing 13 are formed so as to be relatively linearly movable along the central axis of the cylinder.

  The damper 4 has a position in which one end 16 of the rod-shaped main body 14 and the one end-side mounting portion 17 of the cylindrical structure 2, the other end 18 of the rod-shaped main body 14, and the other end-side mounting portion 19 of the tower structure 3 are shifted vertically. As a result, the direction in which the actuating body 12 and the cylindrical housing 13 perform a linear motion (hereinafter referred to as a relative linear motion direction) is inclined in the vertical direction with respect to the horizontal plane 11. It was set as the structure attached as follows.

  For example, as shown in FIG. 2, the damper 4 has a cylinder 21 as a cylindrical housing 13, and a piston whose one end is positioned in the cylinder 21 so as to straddle the inside and outside of the cylinder 21 and the other end protrudes from one end of the cylinder 21. An oil damper having a rod 22, a piston 23 provided on a piston rod 22 positioned in the cylinder 21, a hydraulic chamber 24 partitioned by the piston 23, and an unillustrated hydraulic supply / discharge mechanism for the hydraulic chamber 24 In this case, the operating body 12 is formed by the piston rod 22 and the piston 23, and the rod-shaped main body 14 is formed by the cylinder 21, the piston rod 22 and the piston 23.

  According to the best mode, the damper 4 that connects the core wall 2 and the steel tower 3 is provided, and the damper 4 is installed so as to be inclined in the vertical direction with respect to the horizontal plane 11, that is, the relative linear motion direction is the horizontal plane 11. Since the damper 4 is attached so as to be inclined in the vertical direction with respect to the bending direction, the bending deformation becomes dominant when the structure has an aspect ratio of 5 or more and receives a horizontal external force, for example. In the tower-like structure 1, when the tower-like structure 1 receives a horizontal external force such as wind or earthquake, the bending direction of the core wall 2 and the relative linear motion direction of the damper 4 are the same direction. The effect of 4 is improved. Therefore, it becomes the tower-like structure 1 with the high vibration reduction effect which can reduce the vibration with respect to a horizontal external force effectively. In addition, since the effectiveness of the dampers 4 with respect to the horizontal external force is improved, the number of dampers 4 can be reduced, or the dampers 4 having a small maximum damping force can be used.

  As the damper 4, a damper such as a viscous material damper, a friction damper, or a steel damper may be used.

The schematic block diagram (best form) of a tower-like structure. The figure which shows the damper which connects a core wall and a steel tower (best form). The perspective view which shows the specific structural example of a tower-like structure (best form).

Explanation of symbols

1 tower structure, 2 core wall (tubular structure), 3 steel tower (tower structure), 4 damper,
5 foundation, 11 horizontal surface, 12 actuating body, 13 cylindrical housing, 14 rod-shaped body,
17 One end side mounting portion, 19 Other end side mounting portion.

Claims (2)

  In a tower-like structure provided with a tubular structure extending upward from the foundation, a tower structure extending upward from the foundation and surrounding the tubular structure, and a damper connecting the tubular structure and the tower structure A tower-like structure in which the damper is installed so as to be inclined in the vertical direction with respect to the horizontal plane.   The damper includes a rod-shaped main body formed in a rod shape by an actuating body that relatively moves linearly and a cylindrical housing, and includes one end of the rod-shaped main body, one end-side attachment portion of the cylindrical structure, and the other end of the rod-shaped main body. The direction in which the working body and the cylindrical housing relatively linearly move is inclined in the vertical direction with respect to the horizontal plane by providing the tower structure and the other end side mounting portion at a position shifted vertically. The tower-like structure according to claim 1, wherein the tower-like structure is attached so as to be oriented.

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