JP2005315275A - Support device for junction between structure and support - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a support device for junction between a structure and a support so as to reduce damage on the structure which vibrates together with rigid body motions built in the support. <P>SOLUTION: In the support device for junction between the structure 1 and the support 10, a container 12 filled with a viscoelastic body 11 is attached to the support 10. The structure is connected with a junction material 8 at one end of the junction material, and is connected with the junction material 8 which connects the other end of the junction material with the viscoelastic body in the container. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a structure and support joint support device for reducing damage to a structure that vibrates with rigid body motion built on a support.

The structure is supported by the support, and the structure supported by the support that vibrates at an acceleration of α1 vibrates at an acceleration of α2. Here, α2 / α1 is an acceleration response magnification (hereinafter referred to as β).
When this β increases, various obstacles occur in the structure. Therefore, it is important for the construction of the structure to reduce β.

In the conventional construction method, the structure and the support are tightly coupled. For example, the joint material (anchor bolts) used for building column bases tightly connects the building support (foundation) and columns, and prevents the equipment placed on the building floor from falling. It is clear that the measures are firmly connected to the floor and equipment with bonding materials.
In addition, when the vibration of the support is horizontal, the aspect ratio ("height dimension" / "bottom dimension" for a rectangular structure) is large and not simply fixed on the support. Since the structure is dangerous even if α1 is small, it may be overturned because it generates rocking. Therefore, currently, a construction method that is firmly attached to the support is employed.

If the structure is, for example, a rack of buildings, furniture, or communication equipment, even though it can be prevented from falling, improvement is necessary because the items stored inside suffer large damage because β is large. is there.
In such a construction method, β is uniquely determined by the vibration characteristics of the support and the structure. An increase in β in the structure increases the overturning moment acting on the structure, so a resistance moment with a binding force that exceeds the overturning moment is required to maintain the stability of the structure. In order to ensure this, a strong binding material and a support are necessary, and the cost is impaired, so it needs to be improved.
Further, if a damper (vibration energy absorbing device) is effectively arranged inside the structure, β decreases, but there are many cases where the damper cannot be installed depending on the purpose of use of the structure.

In the present invention, the structure and the support are connected by a “loose joint device” equipped with a vibration energy absorbing mechanism (damper) to allow mutual vibration (rocking) between them, and the damper is driven using the amount of separation. The purpose is to reduce β and reduce the damage to the structure due to the vibration of the support.
Many studies to date have shown that rocking reduces β, but there are few research results on reducing β by actively using rocking reduction. There is no apparatus and construction method for reducing β by utilizing it.

The joining support device according to claim 1 is for joining and supporting the structure and the support. A viscoelastic body or a container filled with a viscous body is attached to the support. When the structure is joined to the end and the other end is joined with a viscoelastic body in the container or a joining material that joins the viscous body, when vibration occurs, locking (separation vibration) is allowed and separated. It is possible to drive the damper using the amount to reduce β and to reduce damage to the structure due to vibration of the support.
Further, the joining support device of claim 2 is different from claim 1 only in that the mounting position of the container is a structure, and the operation and the like are the same as those of claim 1.

According to a third aspect of the present invention, there is provided a bonding support device in which an impact buffering material is sandwiched between a structure and a support, and the bonding material for bonding the structure and the support is eccentrically attached. By absorbing, the effect is the same as that of the first aspect.
According to a fourth aspect of the present invention, there is provided a bonding support device in which an impact buffering material is sandwiched between a structure and a support on a structure to be bonded via a viscoelastic body in the container of the first or second aspect. In addition, damage to the structure can be reduced.
The bonding support device according to claim 5 is a plurality of structures that are placed on the support and are arranged adjacent to each other, and plate-like or rod-like fixing bodies are attached to the structures in a gap. The vibration of the structure is suppressed by filling the gap with a viscoelastic body. According to a sixth aspect of the present invention, there is provided the bonding support device according to any one of the first to fourth aspects, wherein the structure and the structure are filled with a viscoelastic body in a gap between the structure and the structure. The damage suffered can be reduced.
According to a seventh aspect of the present invention, there is provided a bonding support device in which a support frame having a gap formed on the outer periphery of a structure is fixed to a support, and the gap is filled with a viscoelastic body or a viscous body to be coupled.
According to another aspect of the present invention, there is provided a joining support device in which a support frame that forms a gap with respect to the surface of a structure is fixed to a support, and the gap is filled with a viscoelastic body or a viscous body and coupled.

  The joining support device according to any one of claims 1 to 8 can reduce damage to the structure due to vibration of the support.

(First embodiment)
FIG. 1 shows a structure 1 constructed on a support 10, FIG. 1 (A) is a front view, FIG. 1 (B) is a cross-sectional view of a bonding support device, and FIG. 1 (C) is an action diagram when vibration occurs. FIG. 1D is a view of a joint support device having another configuration, and FIG. 1E is a view of an impact buffering material.
A base material 5 made of H steel is horizontally provided at the bottom of the structure 1, and through holes 6a are formed in the base material 5 to join and support the structure 1 and the support 10 together. A material (bolt or the like) 8 is fixed with nuts 9a and 9b.
On the support 10 side, a viscoelastic body (silicone, asphalt, etc.) 11 or a container 12 filled with a viscous body is embedded around the position corresponding to the insertion hole 6a. The bonding material 8 is integrated with the viscoelastic body 11.
Therefore, this joining support device joins and supports the structure 1 and the support 10 with the viscoelastic body or the bonding material 8 via the viscous body.

  In addition, since the structure 1 and the support body 10 are joined via the viscoelastic body 11, mutual vibration transmission between the structure 1 and the support body 10 can be reduced, and in particular, the structure 1 and the support body. 10 can be separated, and by this separation, the viscoelastic body 11 acts as a damper and energy absorption occurs. The viscoelastic body 11 is particularly effective at a low frequency (10 Hz or less) compared to rubber.

In the support 10 and the structure 1, when the acceleration of α1 occurs in the support 10 and the acceleration response magnification is βi, the acceleration α2 of the structure is α1 × βi (see FIG. 1C).
Further, in the conventional construction method in which the support 10 and the structure 1 are in a rigid body coupled state, if βi = β1, and βi = β2 in the construction method using the joint support device of the present invention, β1> β2. .

  This is because vibration energy (input energy) E0 supplied from the support 10 to the structure 1 is mostly energy that causes the structure 1 to vibrate in the conventional construction method (tightly coupled) ( Energy to be deformed (Ev1) is spent on the construction method (loose joining device) using the joining support device of the present invention, whereas the energy Er and vibration energy for causing locking (lifting one end of the structure) This is because the energy Ed for driving the absorber is consumed, and the energy for vibrating the structure is reduced to Ev2.

That is, if “E0 = Ev1” is set in the case of the conventional construction method, “E0 = Er + Ed + Ev2” is established in the present invention.
In this expression, obviously, “Ev1> Ev2” is established, so that the energy for vibrating the structure 1 is reduced, and the acceleration response magnification β is surely reduced. Therefore, damage to the structure 1 can be reduced.

FIG. 1D shows another joining and supporting device, in which an after-mentioned shock absorbing material (for example, lead covered with a rubber-like material) 15 is sandwiched between the structure 1 and the support 10. The shock buffering material 15 is for the purpose of buffering the shock when the structure 1 comes into contact with the support 10 when locking, and is different from the structure shown in FIGS. The same parts are denoted by the same reference numerals, and description thereof is omitted.
As shown in FIG. 1 (E), the shock absorbing material 15 has a structure in which a prismatic lead 50 is covered with a rubber-like member 51 having elasticity, and the lead 50 absorbs energy with respect to a large movement. The rubber-like member 51 covering the lead 50 shares energy absorption with respect to relatively fast movement, and becomes an effective damper against a wide range of vibrations by a synergistic effect. The shape of the lead 50 can be selected as appropriate, such as a cylinder, or other metals such as copper may be used instead of lead.

The structure 1 and the support body 10 are joined and supported by a joining material 8 via a shock absorbing material 15 and a viscoelastic body (or a viscous body).
Therefore, when the support 10 vibrates, the acceleration response magnification β of the structure 1 is reduced as described above, and damage to the structure 1 can be reduced.

(Second Embodiment)
In the present embodiment, as shown in the cross-sectional view of the structure 1 and the support 10 in FIG. 2A, a container 12 that houses a viscoelastic body (or a viscous body) 11 is formed on the structure 1 side.
A bonding material (an anchor bolt or the like) 8A is inserted through the container 12 and embedded in the support 10.
That is, the joining support device for the structure 1 and the support 10 is to join and support the joining material 8A integrated with the viscoelastic body 11 installed on the structure 1 side.

In the joint support device having this configuration, when the support body 10 vibrates, the acceleration response magnification β of the structure 1 is reduced as in the first embodiment, and damage to the structure 1 is reduced. FIG. 2B shows the mode of action when this vibration occurs.
FIG. 2C shows that the shock absorbing material (for example, lead covered with a rubber-like material) 15 is sandwiched between the structure 1 and the support 10. Differently, the same parts are denoted by the same reference numerals and description thereof is omitted.

The structure 1 and the support 10 are joined and supported via the shock absorbing material 15 and joined and supported by the joining material 8 </ b> A via the viscoelastic body 11.
The second embodiment is different from the first embodiment in that the portion filled with the viscoelastic body is provided in the structure instead of the support. The effect is the same.

(Third embodiment)
As shown in FIG. 3 (A), this bonding support device is a device that sandwiches and bonds the impact cushioning material 15 between the structure 1 and the support 10, but a pair of bonding materials (bolts Etc.) The positions of 8A and 8B are different, that is, they are mounted eccentrically.
That is, the structure 1 and the shock-absorbing material 15 are bonded by the bonding material 8A, and the shock-buffering material 15 and the support 10 are bonded by the bonding material 8B that is attached separately from the bonding material 8A.
When vibration occurs in the support 10, as shown in FIG. 3B, the structure 1, the support 10, and the shock-absorbing material 15 are inclined, and via the bonding materials 8 </ b> A and 8 </ b> B fixed eccentrically. As in the first embodiment, the shock absorbing material 15 to be joined can reduce the acceleration response magnification β of the structure 1 and reduce the damage to the structure by the large vibration energy absorption performance. it can.

(Fourth embodiment)
In the present embodiment, as shown in FIG. 4, the structures 1A, 1B, 1C, and 1D constructed on the support 10 are continuously formed with a gap therebetween, and these structures 1A to 1D. Between them, the viscoelastic body 11 is connected via a plate member 20 or a rod-like body.
As described above, in the structure coupled to each other through the viscoelastic body, energy is absorbed by the viscoelastic body 11 with respect to vibration as shown in FIG.
The plurality of structures 1A to 1D are joined to each other by the viscoelastic body 11, but the structures 1A to 1D and the support 10 may be simply placed. As described in the first to third embodiments, the bonding may be performed via a viscoelastic body.

  In addition to the horizontal vibration of the support 10, the joint support device also exhibits an effect as a damper action that operates by rocking against vertical vibration.

(Fifth embodiment)
FIGS. 5A-1 and 5A-2 illustrate a joining support device 60 for the structure 1 and the support 10 having another structure, where FIG. 5A-1 is a perspective view and FIG. 5A-2 is a cross-sectional view. It is.
This joining support device 60 is configured by fixing a support frame that forms a gap on the outer periphery of the structure 1, for example, a flanged single pipe 62 to the support 10 with bolts 63, and inserting the viscoelastic body 11 into the gap. To do.
FIG. 5B shows a joining support device 70 in which a support frame that forms a gap with each surface of the structure 1, for example, a flanged single tube 66 is fixed to the support 10 with bolts 63, and the gap The viscoelastic body 11 is inserted into the structure.
FIG. 5C is an operation diagram showing a cross section of the joint support devices 60 and 70. When the structure 1 is inclined, the viscoelastic body 11 is extended, and the first implementation is performed due to the large vibration energy absorption performance. Similarly to the embodiment, the acceleration response magnification β of the structure 1 is reduced, and damage to the structure can be reduced.

(A) is a front view of the structure and the support in the first embodiment, (B) is a cross-sectional view of the bonding support device, (C) is an action diagram when vibration is generated, and (D) is another configuration. The figure of a joining support apparatus and (E) are figures of an impact buffer material. (A) is sectional drawing of the joining support apparatus in 2nd Embodiment, (B) is an effect | action figure at the time of a vibration generation, (C) is a figure of the joining support apparatus of another structure. (A) is sectional drawing of the joining support apparatus in 3rd Embodiment, (B) is an effect | action figure at the time of a vibration generation | occurrence | production. (A) is a front view of the support body and structure in 4th Embodiment, (B) is sectional drawing of a joining support apparatus, (C) is an effect | action figure at the time of a vibration generation | occurrence | production. (A-1) is a perspective view of a bonding support device according to the fifth embodiment, (A-2) is a cross-sectional view thereof, (B) is a cross-sectional view of a bonding support device of another configuration, and (C) is a bonding operation. It is an effect | action figure which shows the cross section of a support apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Structure 8 Joining material 10 Support body 11 Viscoelastic body 12 Container 15 Impact buffer material

Claims (8)

A joining support device for joining and supporting a structure and a support,
A container filled with a viscoelastic body or a viscous body is attached to the support,
The joining support apparatus characterized by joining the said structure to an edge part, and joining the other end part with the viscoelastic body in the said container, or the joining material couple | bonded with a viscous body. A joining support device for joining and supporting a structure and a support,
A container filled with a viscoelastic body or a viscous body is attached to the structure,
The joining support apparatus characterized by joining the said support body to an edge part and the other end part with the viscoelastic body in the said container, or the joining material couple | bonded with a viscous body. A joining support device for joining and supporting a structure and a support,
A joining support device characterized in that an impact cushioning material is sandwiched between a structure and a support, and a joining material for joining the structure and the support is eccentrically attached.   The joint support device according to claim 1 or 2, wherein an impact buffer is sandwiched between the structure and the support.   A plurality of structures placed on a support and arranged adjacent to each other, and a plate-like or rod-like fixed body is attached to each of the structures by forming a gap, and the gap is filled with a viscoelastic body A joining support device characterized by comprising:   A plurality of structures placed on a support and arranged adjacent to each other, and a plate-like or rod-like fixed body is attached to each of the structures by forming a gap, and the gap is filled with a viscoelastic body The joining support device according to any one of claims 1 to 4, wherein the joining support device is formed. A joining support device for joining and supporting a structure and a support,
A joining support device, wherein a support frame having a gap formed on an outer periphery of the structure is fixed to a support, and the gap is filled with a viscoelastic body or a viscous body and coupled. A joining support device for joining and supporting a structure and a support,
A joining support device, wherein a support frame that forms a gap with respect to the surface of the structure is fixed to a support, and the gap is filled with a viscoelastic body or a viscous body and coupled.

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