JP3125166B2 - Megastructure damping mechanism of adaptive growth structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mega-structure damping mechanism for an adaptive growth structure which enables large-scale renovation, extension and partial removal.

[0002]

2. Description of the Related Art Large-scale renovations and expansions are not required to maintain the form at the time of completion as is the case with existing structures. There is an adaptive growth structure that enables partial removal and the like. This adaptive growth structure has a megastructure having columns and beams, a substructure installed in the megastructure, and a vibration energy absorbing mechanism for attenuating vibration of the megastructure. Examples include a large-scale megastructure morphological change (morphological change of the entire structure) and a relatively small-scale substructure morphological change (layout change, partial extension, partial disassembly, etc.). The vibration energy absorbing mechanism is designed specifically for an adaptive growth structure in order to absorb vibration energy most efficiently.

[0003]

As described above, since the vibration energy absorbing mechanism is designed specifically for the adaptive growth structure, the morphological change and dynamic characteristics of the adaptive growth structure are changed. In such a case, not only does not provide a sufficient function, but also may act on the side that amplifies the vibration. Therefore, it becomes necessary to replace the entire vibration energy absorbing mechanism in accordance with a change in the form of the adaptive growth structure, or to design and mount a new vibration damping system.

Accordingly, an object of the present invention is to provide a damping performance which is excellent even after a change in the form of an adaptive growth structure without replacing or newly designing and installing a vibration energy absorbing mechanism. The purpose of the present invention is to provide a mega-structure damping mechanism for adaptive growth structures.

[0005]

In order to achieve the above object, the present invention provides a megastructure having columns and beams, a substructure installed in the megastructure, and a vibration for damping the vibration of the megastructure. An adaptive absorption structure having an energy absorbing mechanism, wherein the megastructure has a moving mechanism for moving an action point of the damping force by the vibration energy absorbing mechanism when the form of the adaptive growth structure changes. It is characterized by:

[0006]

According to the megastructure vibration control mechanism of the adaptive growth structure of the present invention, the moving mechanism moves the action point of the damping force by the vibration energy absorbing mechanism when the form of the adaptive growth structure changes. Therefore, it is possible to move the action point to an appropriate position even if the form changes. Therefore, there is no need to replace or newly design and attach the vibration energy absorbing mechanism.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A megastructure damping mechanism of an adaptive growth structure according to a first embodiment of the present invention will be described below with reference to FIGS. In all of the following embodiments, an example in which the present invention is applied to an adaptive growth structure with two buildings will be described as an example. However, the invention can also be applied to an adaptive growth structure having a stairwell, which is constructed alone. It is.

First, the overall structure of the adaptive growth structure will be described with reference to FIG. 1. The adaptive growth structure has two megastructures 1 constituting the entire outer shell. The structure 1 includes a plurality of mega columns (pillars) 2 arranged at predetermined positions at predetermined intervals along the vertical direction.
A megajoint 3 disposed at a predetermined position on the megacolumn 2 at a predetermined interval, and a megabeam (beam) 4 disposed at a predetermined position between the megajoints 3 so as to extend in the horizontal direction.
It is mainly composed of

Here, in this embodiment, a communication passage 6 is provided between the mega joints 3 in the space 5 between the mega structures 1 and 1 as necessary. At the top of each megastructure 1 is a megastructure 1
A permanent intelligent construction system (hereinafter referred to as a construction system) 7 for performing the extension and the like of the building is provided, and a permanent underground work site 8 for supporting the extension and remodeling work is provided below the space 5. It is provided, and the upper side is green.

A sub-structure (not shown) is installed in a block 9 defined by the mega columns 2 adjacent to each other and the mega beams 4 adjacent to each other in each of the mega structures 1 as needed.

As shown in FIG. 2, the construction system 7 includes a mega beam 4 at the top of the mega structure 1.
The multi-stage rubber (or a dynamic actuator added thereto) 10 is mounted thereon via a multi-layer rubber, and the multi-layer rubber 10 can be separated from the mega beam 4 and the construction system 7.

A lift-up system 11 extending downward is detachably provided at a predetermined intermediate position of the construction system 7.
Can be separated from a predetermined mega column 2 of the mega structure 1.

The construction system 7 comprises a dynamic vibration energy absorbing mechanism together with the multi-stage laminated rubber 10 by separating the lift-up system 11 and the multi-stage laminated rubber 10 into a state of being joined to the construction system 7 and the megastructure 1. Will do. That is, the construction system 7 acts as the mass of the vibration energy absorbing mechanism to attenuate the vibration of the megastructure 1. In this case, the top of the megastructure 1 becomes the point of application of the damping force, and the vibration energy absorbing mechanism at this time is schematically shown in FIG.

When the megastructure 1 is to be extended upward, the construction system 7 is joined to the lift-up system 11 and separated from the multi-layer laminated rubber 10 with the lift-up system 11 joined to the megastructure 1. State. When the lift-up system 11 is operated in this state, the construction system 7 is jacked up. Then, the megastructure 1 is expanded upward using the jacked-up construction system 7 as an automatic construction system. Then, the construction system 7 carries and places the multi-layer laminated rubber 10 on the new top of the megastructure 1 after the expansion, and separates the construction system 7 from the lift-up system 11 to attach the multi-layer laminated rubber 10 to the construction system 7 and the mega. By being joined to the structure 1, the point of application of the damping force is moved to the top of the megastructure 1. FIG. 4 schematically shows the vibration energy absorbing mechanism at this time (a hatched portion in FIG. 4 is an additional portion of the megastructure 1). Here, the construction system 7 and the lift-up system 11 constitute a moving mechanism in this case.

In the first embodiment having the above configuration, the construction system 7 and the lift-up system 11 constituting the moving mechanism determine the point of action of the damping force by the vibration energy absorbing mechanism when the configuration of the megastructure 1 changes. It can be moved to the top of the added megastructure 1 where vibration energy is easily concentrated. Therefore, the damping performance can be satisfactorily exhibited even after the form change without replacing or newly designing and attaching the vibration energy absorbing mechanism. In addition, since the regular construction system 7 and the like also serve as the original construction system, the dynamic vibration energy absorbing mechanism, and the moving mechanism, it is efficient.

Next, a description will be given of a megastructure damping mechanism of an adaptive growth structure according to a second embodiment of the present invention with reference to FIGS. In the second embodiment, adjacent buildings of the megastructure are connected by using a communication passage, and the damping force acting between the two buildings is actively controlled according to the vibration state of the buildings to suppress the vibration. This embodiment is different from the first embodiment, and the following description will focus on the differences, and the same parts as those in the first embodiment will be denoted by the same reference numerals and description thereof will be omitted.

The adaptive growth structure of the second embodiment also has two megastructures 1 as shown in FIG. 5, and each megastructure 1 has a lifting device for raising and lowering a communication passage 6. 15 are provided.

The lifting device 15 includes a wire 16 and a winch 17 provided on a ground portion of the megastructure 1 opposite to the space 5 for winding and unwinding the wire 16. It has pulleys 18 respectively mounted on the top of the megacolumns 2 (not shown in FIG. 5) on both sides of the megastructure 1 on which the wires 16 drawn from the winch 17 are hung. The leading end of each wire 16 on the feeding side is hung down from the space 5, and the leading end of each wire 16 is attached to each end of the communication passage 6. Thereby, the communication passage 6 is connected to the wire 1
6 suspends from the top of the megastructure 1 and can be moved up and down by the winch 17 to any level. Also, since the pulley 18 is installed on the top of the mega column 2 of the mega structure 1,
The axial force generated on the wire 16 flows directly to the mega column 2. Further, the axial force is easily applied to the mega column 2 symmetrically, for example, by arranging the winch 17 at the left-right symmetric position on the ground portion opposite to the communication passage 6. Here, the vertical load of the communication passage 6 is suspended by the wire 16. This is because, if the structure does not change, the deformation due to the long-term load does not change even if the connection position is changed.

As shown in FIGS. 6 and 7, the communication passage 6 is attached to a mega joint 3 at a position where the mega column 2 and the mega beam 4 are joined. Is also attached. In addition, the communication passage 6 is attached to the megajoint 3 by an expansion joint 19 that is restricted from moving in the vertical direction and is allowed to move in the horizontal direction. A plurality of (three in the illustrated example) actuators 20 are respectively arranged along the horizontal direction above and below both ends of the communication passage 6, and each end of the actuator 20 is connected to the mega joint 3 and the communication joint respectively. It is pin-connected to the passage 6. An engagement portion 21 to which the corresponding wire 16 is attached is attached to the upper end of the communication passage 6 on the side of the mega column 2.

The communication passage 6 acts as a beam between the two megastructures 1 by operating the actuator 20. The vibration of each megastructure 1 is attenuated by controlling the operating force of the actuator 20 according to the vibration state of the megastructure 1 and controlling the contact force with the megastructure 1. Here, the megastructure 1 is provided with a sensor (not shown) for detecting its vibration state at a required position, and a signal from the sensor is wirelessly transmitted, so that a control device (not shown) is provided in accordance with the signal. Will determine and control the gain of the actuator 20. The sensor installation location can be relocated. As described above, the point of action of the damping force in the second embodiment is the joint position between the communication passage 6 and the mega joint 3,
The vibration energy absorbing mechanism is constituted by the communication passage 6 in which the actuator 20 is provided. In addition,
The mega joint 3 is given sufficient strength so as not to be locally broken by the operation force of the actuator 20.

The megastructure 1 has the first
A construction system 7 and a lift-up system 11 (not shown in FIGS. 5 to 7) similar to those in the embodiment are provided. When the megastructure 1 is to be added upward, the communication passage 6 is connected to the mega joint 3. , 3 temporarily loosen the wire 16 suspending the communication passage 6 with the winch 17, extend the mega column 2 upward, and pull the pulley 18.
The above construction system 7 is installed on the top of the extended mega column 2
And it is carried and placed by the lift-up system 11. The wire 16 is hung on the mounted pulley 18, the winch 17 is operated in a state where the communication path 6 is separated from the megastructure 1, and the communication path 6 is moved and attached to a position where vibration energy can be well absorbed. .

The lifting device 15, the construction system 7, and the lift-up system 11 constitute a moving mechanism in this case. In addition, it is also possible to provide a self-propelled mechanism that makes the pulley 18 self-propelled, for example, as a measuring insect along the added mega column 2. In this case, the self-propelled The mechanism will be part of the moving mechanism.

In the second embodiment having the above-described configuration, the lifting device 15 and the construction system 7 that constitute the moving mechanism
And the lift-up system 11 changes the point of application of the damping force by the vibration energy absorbing mechanism, that is, the junction between the communication passage 6 and each of the megastructures 1 when the megastructure 1 is changed in shape.
Since it is moved to a predetermined mega joint position where the damping performance is the best, even if there is a morphological change, the point of action is most efficiently applied to the vibration energy according to the change in the dynamic characteristics of the adaptive growth structure. It can be moved to an appropriate position where it can be absorbed. Therefore, the damping performance can be satisfactorily exhibited even after the form change without replacing or newly designing and attaching the vibration energy absorbing mechanism. Further, by using the communication passage 6, it is possible to cope with a change in the flow of a person or an object due to a change in form. Furthermore, since the connection between the communication passage 6 and the mega joint 3 is limited to only the actuator 20 and the expansion joint 19 having a large degree of freedom of deformation, workability is improved.

The vibration energy absorbing mechanism obtained by combining the second embodiment and the first embodiment, that is, as shown schematically in FIG. When only one of the megastructures 1 is added from the combination with the absorption mechanism, as shown schematically in FIG. 9, only the additional megastructure 1 has the dynamic vibration energy absorption mechanisms 7 and 10.
And it is also possible to change the position of the communication passage 6 (the hatched portion in FIG. 9 is the additional portion of the megastructure 1).

Further, in the second embodiment, it is possible to adapt to various form changes such as a form change of the substructure or a form change of both the megastructure 1 and the substructure without being limited to the addition of the megastructure 1. In addition, when the megastructure 1 is added and the communication passage 6 is moved to the added portion,
Only the lifting device 15 is required as the moving mechanism.

Next, a megastructure damping mechanism of an adaptive growth structure according to a third embodiment of the present invention will be described with reference to FIGS.
3 will be described below. In the third embodiment, a long tensile member such as a wire connects two distant points such as a top and a base of a structure, and a damping force is applied according to a relative deformation (or speed) generated therebetween. The first embodiment is different from the first embodiment in that a vibration energy absorbing mechanism that generates a vibration is used. The following description will focus on this difference, and the same parts as those in the first embodiment are denoted by the same reference numerals. Description is omitted.

FIG. 1 shows an adaptive growth structure according to a third embodiment.
As shown in FIG. 0, a wire damping device 23 constituting a vibration energy absorbing mechanism is provided. The wire damping device 23 has pulleys 24 provided at predetermined positions below each megastructure 1, and the wire 25
Has one end fixed inside the top of one megastructure 1 and the pulley 2 below the other megastructure 1
After being hung on 4, it is hung horizontally on a pulley 24 below one megastructure 1, and the other end is fixed inside the top of the other megastructure 1. here,
The wire 25 between each pulley 24, 24 is a rotary damper 2
It is wound on 6. When the megastructure 1 vibrates, the wire 25 between the pulleys 24, 24 moves, and the movement of the wire 25 is attenuated by the damping device 26, whereby the vibration energy of the megastructure 1 is absorbed. Will be.

In the third embodiment, the wire 2 at the top of at least one of the megastructures 1
5 is fixed to a fixed point moving mechanism 27 as shown in FIGS. This fixed point moving mechanism 2
7 is configured to be movable after relaxing the tension introduced into the wire 25, and is perpendicular to the outer wall 28 of the megastructure 1 and extends vertically along the outer wall 28; A moving body 30 that moves up and down along the guide rails 29; The movable body 30 is provided with a plurality of rollers 31 that are driven by a driving force of a motor (not shown) and run on the guide rails 29 on each guide rail 29 side. In addition, grooves (not shown) are formed in the roller 31 and the guide rail 29 so as to be engaged with each other so as not to slip and drop the moving body 30 so as to be orthogonal to the moving direction.

The movement control of the mobile unit 30 is computer-controlled by radio, and therefore the mobile unit 3
0 is provided with the motor capable of self-running and a sensor mechanism (not shown) for receiving a control signal and converting it into a command for self-running / stop confirmation and stop. The moving body 30
Is bolted to the megajoint 3 using a fixing jig (not shown) sufficiently reinforced by a stiffener or the like (can be joined to any of the megajoints 3). Here, the bolt joint portion of the mega joint 3 is sufficiently reinforced beforehand so that local destruction does not occur due to the axial force of the wire 25 or the like.

The moving body 30 is provided with a winch 32 capable of winding, feeding, and stopping the wire 25 and a wire 25 provided below the winch 32 and immediately before being wound on the winch 32. The outer wall 28 is provided with a slit 34 for taking out the wire 25 that is obliquely fed from the pulley 33 to the outside. Here, the pulley 33 is provided with a stopper such as a disc brake (not shown).
When the rotation of 3 is restricted, the movement of the wire 25 is restricted by the frictional force, and the wire 25 is fixed to the pulley 33. With this stopper, no force is applied to the winch 32 from the wire 25 in normal times other than when the wire 25 is wound and unwound.

Here, megastructure 1 has the first
A construction system 7 and a lift-up system 11 (not shown in FIGS. 10 to 13) similar to those of the embodiment are provided. When the megastructure 1 is to be added upward, the construction system 7 and the lift-up system 1
1, and the guide rail 29 is additionally provided. Then, the winch 32 is released from the stop state, and the stopper of the pulley 33 is released to loosen the axial force of the wire 25. Thereafter, a fixing jig (not shown) fixing the moving body 30 to the mega joint 3 is removed. Thereafter, the vehicle is driven by the driving force of a motor (not shown) to the mega joint 3 (usually the uppermost one) at a predetermined coupling position where the vibration energy can be favorably absorbed. And the moving body 30
Is fixed to a new mega joint 3 by a fixing jig, an initial axial force is introduced to the wire 25 by the winch 32, and then the stopper of the pulley 33 is operated.

Here, the fixed point moving mechanism 27, the construction system 7, and the lift-up system 11 constitute a moving mechanism in this case. In addition, it is also possible to move using the construction system 7 and the lift-up system 11 instead of making the moving body 30 self-propelled.

In the third embodiment having the above-described structure, the fixed point moving mechanism 27, the construction system 7, and the lift-up system 11 constituting the moving mechanism constitute a vibration energy absorbing mechanism when the megastructure 1 is added. The point of action of the damping force by the wire damping device 23, that is, the fixing point of the wire 25, is changed to the added megastructure 1.
However, since it is moved to a predetermined megajoint position (usually the uppermost position) where the damping performance is the best, the action point can be moved to an appropriate position even if there is a change in form (after the movement). The vibration energy absorption mechanism is schematically shown in Fig. 13. In Fig. 13, a hatched portion is an additional portion of the megastructure 1.) Therefore,
The damping performance can be satisfactorily exhibited even after the form change without replacing or newly designing and attaching the vibration energy absorbing mechanism.

In the third embodiment, it is possible to adapt to various changes in form without being limited to the addition of the megastructure 1. Except when the megastructure 1 is added and the fixed point is raised, only the fixed point moving mechanism 27 is required as the moving mechanism.

[0035]

As described above in detail, according to the megastructure damping mechanism of the adaptive growth structure of the present invention, the moving mechanism is capable of damping by the vibration energy absorbing mechanism when the shape of the adaptive growth structure changes. Since the point of action of the force is moved, the point of action can be moved to an appropriate position even if there is a change in form. Therefore, the damping performance can be satisfactorily exhibited even after the form change without replacing or newly designing and attaching the vibration energy absorbing mechanism.

[Brief description of the drawings]

FIG. 1 is a front view showing an overall configuration of an adaptive growth structure to which a megastructure vibration damping mechanism according to a first embodiment of the present invention is applied.

FIG. 2 is a front view showing a megastructure damping mechanism of the adaptive growth structure according to the first embodiment of the present invention.

FIG. 3 is a schematic diagram showing a state before a megastructure is added to a megastructure damping mechanism of the adaptive growth structure according to the first embodiment of the present invention.

FIG. 4 is a schematic view showing a state after the megastructure is added to the megastructure damping mechanism of the adaptive growth structure according to the first embodiment of the present invention.

FIG. 5 is a front view schematically showing a lifting device of a megastructure vibration control mechanism of an adaptive growth structure according to a second embodiment of the present invention.

FIG. 6 is a front view showing a communication passage of a megastructure damping mechanism of an adaptive growth structure according to a second embodiment of the present invention.

FIG. 7 is a side view of the communication passage of the megastructure damping mechanism of the adaptive growth structure according to the second embodiment of the present invention as viewed from the left in FIG.

FIG. 8 is a schematic diagram showing a state before a megastructure is added in which a first embodiment is combined with a megastructure damping mechanism of an adaptive growth structure according to a second embodiment of the present invention.

FIG. 9 is a schematic view showing a state after the megastructure is added by combining the megastructure damping mechanism of the adaptive growth structure according to the second embodiment of the present invention with the first embodiment.

FIG. 10 is a schematic diagram showing a state before a megastructure is added to a megastructure damping mechanism of an adaptive growth structure according to a third embodiment of the present invention.

FIG. 11 is a front sectional view showing a moving mechanism of a megastructure vibration damping mechanism of an adaptive growth structure according to a third embodiment of the present invention.

FIG. 12 is a side sectional view showing a moving mechanism of a megastructure damping mechanism of an adaptive growth structure according to a third embodiment of the present invention.

FIG. 13 is a schematic diagram showing a state after a megastructure is added to a megastructure damping mechanism of an adaptive growth structure according to a third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mega structure 2 Mega column (column) 4 Mega beam (beam) 7 Construction system (moving mechanism, vibration energy absorbing mechanism) 10 Multi-layer laminated rubber (vibrating energy absorbing mechanism) 11 Lift-up system (moving mechanism) 15 Lifting device (moving) 23) Wire damping device (vibration energy absorbing mechanism) 27 Fixed point moving mechanism (moving mechanism)

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E04H 9/02

Claims (1)

(57) [Claims] 1. An adaptive growth structure having a megastructure having columns and beams, a substructure installed in the megastructure, and a vibration energy absorbing mechanism for damping vibration of the megastructure. The vibration damping mechanism according to any one of claims 1 to 3, further comprising a moving mechanism for moving a point of action of the damping force by the vibration energy absorbing mechanism when the form of the adaptive growing structure changes. mechanism.