JP2003227186A - Reinforcement of structure and vibration control member, and reinforcement of structure and vibration control structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate work for installing a reinforcing structure and simply control the vibrations of a structure by means of a reinforcing member using reinforcing fibers. <P>SOLUTION: A carbon fiber sheet 1a and a rubber sheet 1b are coupled together so as to form a reinforcing vibration-control sheet 1. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure reinforcing and damping member using a reinforcing fiber such as carbon fiber,
Further, the present invention relates to a structure for reinforcing and damping a structure by means of the reinforcing and damping member.

[0002]

2. Description of the Related Art Conventional carbon fiber reinforced structures are generally formed on the surface of a pillar of a frame structure, a cross member such as a girder, or the surface of a wall. The entire structure is made up of carbon fiber sheets.

However, such a conventional reinforcing structure has a problem that the structure cannot be sufficiently reinforced because the installation work requires a long time and the man-hours increase.
Further, since the carbon fiber itself hardly expands or contracts, it is difficult to obtain the vibration damping effect by using the carbon fiber sheet alone, and no attempt has been made to combine the carbon fiber and the viscoelastic material.

[0004]

SUMMARY OF THE INVENTION The present invention is directed to a structure reinforcing and damping member which has advantageously solved the above problems, and a structure reinforcing and damping structure including the reinforcing and damping members. It is intended to provide.

The structure reinforcing and damping member according to the present invention comprises a reinforcing fiber and a viscoelastic material bonded to each other. The reinforcing fiber and the viscoelastic material are bonded to each other. According to the reinforcing and damping member, it is possible to sufficiently reinforce the structure with reinforcing fibers such as carbon fibers, glass fibers, and metal fibers, and the reinforcing fibers arranged in parallel or knitted with each other are prevented from vibrating. Upon relative displacement, the viscoelastic material such as rubber, which is kneaded and filled in the gaps between the reinforcing fibers or bonded to the reinforcing fibers and bonded to the reinforcing fibers, undergoes shear deformation or expansion / contraction deformation to absorb vibration energy. , The structure can be damped.

According to a second aspect of the present invention, there is provided a reinforcing and damping structure for a structure, wherein the reinforcing and damping member according to the first aspect is stretched and fixed to a frame of the structure. According to such a structure reinforcing and damping structure, the frame can be reinforced and damped by the member that is stretched and fixed to the structure frame. That is, the framework can be sufficiently reinforced by the reinforcing fibers, and when the framework is deformed by vibration and the reinforcing fibers arranged in parallel or knitting are displaced relative to each other, the viscoelastic material bonded to the reinforcing fibers is sheared. Since the vibration energy is absorbed by being deformed or expanded / contracted, the vibration of the frame can be suppressed. Moreover, according to the reinforcing and damping structure of the present invention, since the installation can be performed only by fixing the end portion of the member stretched over the structure to the frame, the installation work does not require a long time and the man-hours are small. Therefore, the structure can be sufficiently reinforced and vibration-damped.

On the other hand, the reinforcing and damping structure for a structure according to the third aspect of the present invention,
The reinforcing and damping member according to claim 1 is stretched and fixed, and according to the reinforcing and damping structure of the structure, the member is stretched and fixed to the joint portion of the structure. Joints can be reinforced and damped. That is, it is possible to sufficiently reinforce the joint portion with the reinforcing fiber, and the joint portion may be displaced by vibration or deformed so as to be pulled out, and when the reinforcing fibers arranged in parallel or knitted are relatively displaced, Since the viscoelastic material bonded to the reinforcing fiber absorbs the vibration energy by shearing or expanding and contracting, it is possible to suppress the vibration of the joint. Moreover, according to the reinforcing and vibration damping structure of the present invention, since it can be installed only by fixing the end portion of the member stretched over the joint portion of the structure to the joint portion, it does not require a long time for the installation work, Since the number of steps is small, it is possible to sufficiently reinforce and suppress the structure.

In the reinforcing and damping structure for a structure according to the present invention as defined in claim 4, the crossing portions of the reinforcing fibers stretched so as to cross each other at the framework or the joint portion of the structure are made of a viscoelastic material. It is made to slidably contact each other through, and according to the reinforcing and damping structure of such a structure, while sufficiently reinforcing the structure with a reinforcing fiber such as carbon fiber, glass fiber or metal fiber, When the framework and joints are deformed by vibration, the reinforcing fibers stretched over the framework and joints are displaced from each other, so that the reinforcing fibers are kneaded and filled into the gaps between the reinforcing fibers or are bonded to the reinforcing fibers and are then reinforced. Since the viscoelastic material such as rubber that is coupled to the sliding contact the other reinforcing fiber that is stretched over, or the viscoelastic materials slide against each other to absorb the vibration energy, the vibration of the frame or joint of the structure is absorbed. It is possible to damp the.

Further, in the above-mentioned structure reinforcing and damping structure, as described in claim 5, fixing the reinforcing fiber to the structural material of the structure is carried out from above the reinforcing fiber. It may be carried out by using a U-shaped metal fitting such as a hook or a staple of a stapler (trade name) or a U-shaped metal fitting screwed on the reinforcing material from the reinforcing fiber. By doing so, it is possible to extremely easily fix the reinforcing fiber and the reinforcing and damping member to the constituent material.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will now be described in detail with reference to the drawings by way of examples. FIGS. 1 (a) and 1 (b) are side and perspective views showing a supplementary vibration damping sheet as a first embodiment of the structure reinforcing and damping member according to the present invention, and FIGS. (b) is a side view and a perspective view showing a supplementary vibration damping sheet as a second embodiment of the structure reinforcing and damping member of the present invention, and FIGS. 3 (a) and 3 (b) show the structure of the present invention. FIG. 4 (a) is a side view and a perspective view showing a supplementary vibration damping sheet as a third embodiment of the object reinforcement and vibration damping member.
(b) is the fourth structure of the reinforcing and damping member for the structure of the present invention.
It is a side view and a perspective view showing a portion of a certain length of a supplementary compulsory vibration rod material as an embodiment, in which reference numeral 1 is a supplementary compulsory vibration sheet 1a of the first to third embodiments. , A carbon fiber sheet made of carbon fiber as a reinforcing fiber, 1b is a rubber sheet made of slightly vulcanized synthetic rubber or natural rubber as a viscoelastic material, and 11 is a compulsory vibrating rod of the fourth embodiment. Material 11a is a rubber rod made of slightly vulcanized synthetic rubber or natural rubber as a viscoelastic material.

A supplementary compulsory vibration sheet 1 of the first embodiment shown in FIG.
The rubber sheet 1b is entirely adhered and bonded to the surface of the carbon fiber sheet 1a with an adhesive. In addition,
In the illustrated example, the carbon fiber sheet 1a is adhered to only one side of the rubber sheet 1b, but the carbon fiber sheet 1a may be adhered to both sides with the rubber sheet 1b sandwiched therebetween. The rubber sheet 1b may be adhered to both sides of the sandwiched sheet.

A supplementary compulsory vibration sheet 1 of the second embodiment shown in FIG.
Is obtained by alternately stacking two or more layers of carbon fiber sheets 1a and rubber sheets 1b and adhering them to each other with an adhesive.

A supplementary compulsory vibration sheet 1 of the third embodiment shown in FIG.
In the above, the unvulcanized rubber is kneaded between the carbon fiber bundles and slightly vulcanized and cured, and the carbon fiber sheet 1a is sandwiched between the two rubber sheets 1b. In the illustrated example, the carbon fiber sheet 1a is sandwiched and bonded between the rubber sheets 1b, but similarly to the above, the unvulcanized rubber is kneaded between the carbon fiber bundles and slightly vulcanized and cured, The rubber sheet 1b may be bonded to only one side, or the carbon sheet 1a may be bonded to both sides with the rubber sheet 1b interposed therebetween.

In the fourth embodiment of the forced compulsory vibrating rod member 11 shown in FIG. 4, the rubber rod 11a having a circular cross section is used for the carbon fiber sheet 1.
It is wound with a and the carbon fiber sheet 1a is adhered to the surface of the rubber rod 11a with an adhesive. The rubber rod 11
The sectional shape of a is not limited to a circle, but may be a square, a rectangle, a triangle, or the like.

According to the compulsory compulsory vibration sheet 1 of the first to third embodiments and the compulsory compulsory vibration bar member 11 of the fourth embodiment, the high strength and light weight which have been used for reinforcing the structure by itself have been used so far. Since the rubber sheet 1b and the rubber rod 11a as a viscoelastic material are combined and bonded to the carbon fiber sheet 1a, the vibration damping effect can be provided at the same time as the reinforcement. That is, the structure can be sufficiently reinforced by the carbon fiber sheet 1a, and when the carbon fibers of the carbon fiber sheet 1a are relatively displaced by vibration or the like, the rubber sheet bonded to the carbon fiber sheet 1a. Since 1b and the rubber rod 11a undergo shear deformation or expansion / contraction deformation to absorb vibration energy, the structure can be damped.

5 to 7 are front views respectively showing first to third embodiments in which the structure reinforcing and damping structure of the present invention is applied to the reinforcing and damping of a building structure. Reference numeral 1 indicates any one of the above-described supplementary compulsory vibration sheets 1 of the first to third embodiments, and 2 indicates a stapler (trade name) as a hook-shaped metal fitting.
The needles 3, 3 are column members of the frame structure of the building structure, and 4 are beam members as the horizontal members of the frame structure.

The supplementary compulsory vibration structure of the first embodiment shown in FIG.
This is applied when the pillar member 3 and the beam member 4 of the frame structure of the building structure are made of wood, and in this damping structure, the rectangular frame formed by the pillar member 3 and the beam member 4 is used as a frame. The compulsory vibration damping sheet 1 of the above embodiment in a cross shape, that is, a strip shape on a diagonal line.
, And the both ends of the compulsory vibration sheet 1 are pillared with staple needles 2 which are punched into the pillar member 3 and the beam member 4 with a large staple from above the compulsory vibration sheet 1. Member 3
It is fixed to the beam member 4.

According to the supplementary compulsory vibration structure of the first embodiment, the structure is fixed to the rectangular frame formed by the pillar member 3 and the beam member 4 of the frame structure of the building structure by bracing. The compulsory vibration damping sheet 1 of the above-mentioned embodiment can reinforce the rectangular frame, and the compulsory vibration damping sheet of the above-mentioned embodiment is arranged in the rectangular frame formed by the column member 3 and the beam member 4 in a bracing manner. Since it can be installed only by fixing both end portions of 1, the installation work does not require a long time and the man-hours are small, so that the building structure can be sufficiently reinforced. Also, the pillar member 3
When the rectangular frame formed by the beam member 4 and the beam member 4 is deformed by vibration such as an earthquake, the rectangular frame is joined to the carbon fiber sheet 1a of the supplementary vibration damping sheet 1 of the above-mentioned embodiment stretched in a bracing pattern. Since the rubber sheet 1b absorbs the vibration energy by shearing or expanding and contracting, the vibration of the rectangular frame can be suppressed.

The supplementary compulsory vibration structure of the second embodiment shown in FIG.
The compulsory vibration damping sheet 1 of the above-mentioned embodiment having a triangular shape is stretched at four joints of the rectangular frame formed by the column member 3 and the beam member 4 where the column member 3 and the beam member 4 are joined. Hand over,
The both ends of the sheet 1 are made into the pillar member 3 and the beam member 4 by the staple needle 2 which is punched into the pillar member 3 and the beam member 4 with a large staple from above the supplementary vibration sheet 1. It is fixed.

According to the supplementary compulsory vibration structure of the second embodiment, the column member 3 and the beam member 4 of the frame formed by the column member 3 and the beam member 4 of the frame structure of the building structure are joined to each other. A rectangular frame can be reinforced by the compulsory vibration damping sheet 1 of the above-mentioned embodiment which is stretched over the four connecting portions to be connected, and the column members 3 and the beam members 4 are arranged at the four connecting portions. Since it can be installed only by fixing the side portion of the triangular compulsory vibration sheet 1 to the frame, the installation work does not require a long time and the man-hours are small, so that the building structure can be sufficiently reinforced. . Further, when the rectangular frame formed by the pillar member 3 and the beam member 4 is deformed by vibration such as an earthquake, the carbon fiber sheet of the compulsory vibration damping sheet 1 of the above-mentioned embodiment stretched over the joint portion. The rubber sheet 1b coupled to the belt 1a absorbs the vibration energy by shearing or expanding and contracting, so that the vibration of the rectangular frame can be suppressed.

The supplementary compulsory vibration structure of the third embodiment shown in FIG.
The compulsory vibration damping sheet 1 of the above-mentioned embodiment is stretched over the rectangular frame formed by the column member 3 and the beam member 4 so as to cover the frame, and from above the compulsory vibration sheet 1. The peripheral portion of the supplementary compulsory vibration sheet 1 is fixed to the column member 3 by the staple needle 2 which is driven into the column member 3 and the beam member 4 with a large stapler.
It is fixed to the beam member 4.

According to the supplementary compulsory vibration structure of the third embodiment, a frame formed by the pillar members 3 and the beam members 4 of the frame structure of the building structure is entirely stretched so as to cover the frame. The rectangular frame can be reinforced by the passed compulsory vibration sheet 1 of the above-mentioned embodiment, and the peripheral portion of the compulsory vibration sheet 1 stretched so as to cover the frame is fixed to the frame by a staple 2 of a stapler. Since it can be installed by simply installing it, the installation work does not require a long time and the number of steps is small, so that the building structure can be sufficiently reinforced. In addition, when the rectangular frame formed by the pillar member 3 and the beam member 4 is deformed by vibration such as an earthquake, the carbon fiber sheet of the compulsory vibration damping sheet 1 of the above-mentioned embodiment stretched over the entire surface. The rubber sheet 1b connected to the la 1a is sheared or stretched to generate vibration energy.
Since it absorbs, the vibration of the rectangular frame can be suppressed.

As a modified example of the supplementary compulsory vibration structure of these embodiments, instead of the supplementary compulsory vibration sheet 1 of the above embodiment,
The supplementary compulsory vibration rod member 11 of the fourth embodiment may be stretched, and in this case, the carbon fiber sheet 1a is oriented so that the carbon fibers are inclined with respect to the longitudinal direction of the supplementary compulsory vibration rod member 11. By doing so, when the expansion / compression force is applied to the compulsory compulsory vibration rod member 11, the braid angle between the carbon fibers changes, so that the compulsory compulsion vibration rod member 11 expands and contracts and its diameter changes to expand and contract the rubber rod 11a inside. Since it is urged, the vibrating elastic expansion / contraction behavior can be easily performed in the supplementary compulsory vibration bar member 11.

FIG. 8 is a front view showing a fourth embodiment and a fifth embodiment in which the structure reinforcing and damping structure of the present invention is applied to the reinforcing and damping of a building structure, respectively. The embodiment and the fifth embodiment are also applied when at least the beam member 4, the inclined cane member 5 and the base member 6 of the framework structure of the building structure are made of wood, and the central portion and the lower portion of FIG. In the compulsory vibration damping structure of the fourth embodiment shown in FIG. 2, the compulsory vibration damping sheet 1 of the above-described embodiment is provided at the joint between the beam members 4 and at the joint between the beam member 4 and the base member 6 which is also a transverse member.
And the surrounding portions of the compulsory vibration sheet 1 with the staple needles 2 that are punched into the beam member 4 and the base member 6 with a large staple from above the compulsory vibration sheet 1. It is fixed to the beam member 4 and the base member 6.

According to the supplementary compulsory vibration structure of the fourth embodiment, it is stretched and fixed to the joint between the beam members 4 of the frame structure of the building structure and the joint between the beam member 4 and the base member 6, respectively. The joining portions can be reinforced with the supplementary compulsory vibration sheet 1 of the above-described embodiment, and the side portions of the supplementary compulsory vibration sheet 1 stretched over the joint portions are formed on the beam member 4 and the base member 6. Since it can be installed only by fixing it with the staple 2 of the stapler, the installation work does not require a long time and the number of steps is small, so that the building structure can be sufficiently reinforced. Also,
When the joints between the beam members 4 and the joints between the beam members 4 and the base member 6 are displaced or deformed so as to be pulled out due to vibration such as an earthquake, the above-mentioned embodiment stretched over the joints. Since the rubber sheet 1b bonded to the carbon fiber sheet 1a of the supplementary compulsory vibration sheet 1 absorbs the vibration energy by shear deformation or expansion / contraction deformation, it is possible to suppress the vibration of the joint portion.

Further, in the supplementary compulsory vibration structure of the fifth embodiment shown in the upper part of FIG. 8, the connecting member of the above-mentioned embodiment is connected to the beam member 4 of the frame structure of the building structure and the cane member 5 as the inclination member. The supplementary compulsory vibration sheet 1 is stretched, and the compulsory compulsive vibration sheet 1 is formed on the beam 4 and the cane material 5 from above the compulsory compulsory vibration sheet 1 by a staple 2 that is punched with a large stapler. The peripheral portion of is fixed to the beam member 4 and the cane member 5.

According to the supplementary compulsory vibration structure of the fifth embodiment, the supplementary compulsory vibration structure of the above embodiment is stretched and fixed to the joint between the beam member 4 and the cane member 5 of the frame structure of the building structure. The joints can be reinforced by the sheet 1, and the side portions of the compulsory vibration sheet 1 stretched over the joints are fixed to the beam member 4 and the cane member 5 with the staple 2 of the stapler. Since it can be installed at, the installation work does not require a long time and the number of steps is small, so that the building structure can be sufficiently reinforced. Further, when the joint portion between the beam member 4 and the cane member 5 is displaced or deformed so as to be pulled out by vibration such as an earthquake, the compulsory vibration damping sheet 1 of the above-mentioned embodiment stretched over the joint portion. Since the rubber sheet 1b bonded to the carbon fiber sheet 1a absorbs the vibration energy by shear deformation or expansion / contraction deformation, it is possible to suppress the vibration of the joint portion.

9 (a) and 9 (b) are a front view and a side view showing a sixth embodiment in which the structure reinforcing and damping structure of the present invention is applied to the reinforcing and damping of a building structure. The reinforcement vibration structure of the sixth embodiment is preferably applied when the pillar member 3 and the beam member 4 of the frame structure of the building structure are made of metal. In the vibration-damping structure, two strip-shaped carbon fiber sheets 1a are arranged so as to be offset from each other in the longitudinal direction, and a rubber sheet 1b sandwiched between the carbon fiber sheets 1a is placed in the carbon fiber sheet 1a. Of the structure for reinforcing and damping the structure of the present invention, which is formed by bonding by an adhesive or by kneading rubber into the carbon fiber bundle of the carbon fiber sheet 1a and vulcanizing and curing the rubber. Fifth
The supplementary compulsory vibration member 12 as an example is stretched in a rectangular frame formed by the column member 3 and the beam member 4 in a braided shape or in a grid pattern, and the both ends of the compulsory compulsory vibration member 12 are pulled up.
Clamped CF (carbon fiber: carbon fiber) anchors 1c are adhered to each other, and bolts 6 and the like are passed through the holes of the loops of the CF anchors 1c, and the bolts 6 and the like are fixed to the pillar member 3
The both ends of the supplementary compulsory vibration member 12 are fixed to the column member 3 and the beam member 4 by fixing them to the fixing member 5 fixed to the beam member 4 with bolts or welding. Here, the carbon fiber sheet 1a is oriented so that the carbon fiber bundle extends in the longitudinal direction of the supplementary compulsory vibration member 12 and in the direction perpendicular thereto.

According to the above-described forced compulsory vibration structure of the sixth embodiment, it is stretched in a braided or grid-like manner on a rectangular frame formed by the column members 3 and the beam members 4 of the frame structure of the building structure. The rectangular frame can be reinforced by the fixed compulsory vibration member 12 fixed by the fixed compulsory vibration member 12, and the compulsory compulsory vibration member 12 arranged in the rectangular frame formed by the column member 3 and the beam member 4 in a braided shape or a lattice shape. Since it can be installed by simply fixing both ends with one bolt 6 or the like, the installation work does not require a long time and the man-hours are small, so that the building structure can be sufficiently reinforced.

Further, according to the supplementary compulsory vibration structure of the sixth embodiment, when the rectangular frame formed by the column member 3 and the beam member 4 is deformed by vibration such as an earthquake, a brace shape or a lattice shape is formed. Since the two carbon fiber sheets 1a of the compulsory vibration damping member 12 stretched over the sheet are displaced from each other, the rubber sheet 1b sandwiched therebetween is sheared or stretched and deformed to absorb the vibration energy. The vibration of the framework can be effectively suppressed. The number of laminated carbon fiber sheets 1a and rubber sheets 1b can be increased according to the required strength.

FIGS. 10 (a) and 10 (b) show a supplementary forced vibration member 1 as a sixth embodiment of the structure reinforcing and damping member according to the present invention.
3A and 3B are a front view and a side view showing the auxiliary compulsory vibration damping member 13 of the sixth embodiment, which is composed of four belt-shaped carbon fiber sheets 1a.
Of the two rubber sheets 1b are arranged so as to be offset from each other in the longitudinal direction, and the three rubber sheets 1b sandwiched between the carbon fiber sheets 1a are bonded to the carbon fiber sheets 1a with an adhesive or carbon. The carbon fiber bundle of the fiber sheet 1a is formed by adhering the carbon fiber bundle by kneading and vulcanizing and curing rubber, and the supplementary compulsory vibration member 13 of the sixth embodiment is a column member 3 and a beam member. Fixing both ends to the pillar member 3 and the beam member 4 by stacking and sandwiching the carbon fiber sheet 1a on a fixing metal member 5 fixed to 4 by bolts or welding and tightening them with bolts 6 and the like. According to this supplementary compulsory vibration member 13, the reinforcing and vibration damping effects can be further increased. The number of laminated carbon fiber sheets 1a and rubber sheets 1b can be increased or decreased according to the required strength.

FIGS. 11 (a) and 11 (b) show a supplementary compulsory vibration member 1 as a seventh embodiment of the structure reinforcing and damping member according to the present invention.
4A and 4B are a front view and a side view of the carbon fiber sheet 1a according to the seventh embodiment.
Inside, the bar-shaped carbon fiber sheet 1a is placed,
A rubber 1d as a viscoelastic material filled between the carbon fiber sheets 1a is formed by being bonded to the carbon fiber sheets 1a by vulcanization adhesion or the like. The vibrating member 14 has both ends by crushing the ends of the carbon fiber sheet 1a in a fixing member 5 fixed to the column member 3 and the beam member 4 by bolts or welding, and sandwiching them and tightening them with bolts 6 or the like. The portion can be fixed to the column member 3 and the beam member 4, and the reinforcing and damping effect can be further increased by the supplementary vibration damping member 14.

12 (a) and 12 (b) are front views showing the seventh embodiment in which the structure reinforcing and damping structure of the present invention is applied to the reinforcing and damping of a building structure and its AA. It is sectional drawing which follows the line, and also this supplementary-forced vibration structure of this 7th Example is preferably applied when the pillar member 3 and the beam member 4 of the framework structure of a building structure are metal, In the supplementary compulsory vibration structure of the seventh embodiment, two strips of the supplementary compulsory vibration sheet 1 of the first embodiment, which are braided in a rectangular frame formed by a column member 3 and a beam member 4, are formed in a bracing manner. In addition, the rubber sheets 1b are brought into contact with each other and stretched, and both ends of the supplemental compulsory vibration sheet 1 are
The bolt 6 is attached to the fixing metal fitting 5 fixed to the pillar member 3 and the beam member 4.
The both ends of the supplementary compulsory vibration member 12 are fixed to the column member 3 and the beam member 4 by fixing them with each other.

According to the supplementary compulsory vibration structure of the seventh embodiment, the structure is fixed in a rectangular frame formed by the column member 3 and the beam member 4 of the frame structure of the building structure in a bracing manner. The rectangular frame can be reinforced by the supplementary vibration damping member 1, and both ends of the supplementary vibration compensation member 1 arranged in a braided manner are fixed to the rectangular frame formed by the column member 3 and the beam member 4, respectively. Since it can be installed only by itself, the installation work does not require a long time and the number of man-hours is small, so that the building structure can be sufficiently reinforced.

Further, according to the compulsory forced vibration structure of the seventh embodiment, when the rectangular frame formed by the column member 3 and the beam member 4 is deformed by vibration such as an earthquake, it is stretched in a bracing manner. Since the two carbon fiber sheets 1a of the supplementary compulsory vibration member 1 are displaced from each other, the rubber sheets 1b sandwiched therebetween are in sliding contact with each other to absorb the vibration energy by friction, so that the vibration of the rectangular frame is prevented. Can effectively dampen. The number of alternating layers of the supplementary compulsory vibration sheet 1 can be increased according to the required strength.

FIG. 13 shows an eighth structure in which the structure reinforcing and damping structure of the present invention is applied to the reinforcing and damping of a building structure.
It is a front view showing an example, and it is preferable that the compulsory vibration damping structure of the eighth example is also applied when the column member 3 and the beam member 4 of the frame structure of the building structure are made of metal. In the supplementary compulsory vibration structure of the eighth embodiment, the supplementary compulsory vibration sheet 1 of the first embodiment is stretched between the pillar members 3 of the frame structure of the building structure and also between the upper and lower beam members 4. The rubber sheets 1b of the supplementary compulsory vibration sheets 1 are brought into contact with each other by stretching them,
The four corners of one of the compulsory vibration damping sheets 1 are fixed to the left and right pillar members 3 via the fixing brackets 5 and the bolts 6 and the other four corners of the other compulsory vibration damping sheet 1 are fixed to the fixing brackets 5 and the bolts 6. It is fixed to the upper and lower beam members 4 by means of the above, and according to the supplementary compulsory vibration structure of the eighth embodiment, the reinforcing effect of the carbon fiber sheet 1a of each supplementary compulsory vibration sheet 1 and the rubber sheet 1b.
In addition to the vibration damping effect of the rubber sheet 1b, the two rubber sheets 1b that are in sliding contact with each other can suppress the vibration of the building structure more effectively. You can The number of alternating layers of the supplementary compulsory vibration sheet 1 can be increased according to the required strength.

Although the present invention has been described above based on the illustrated example, the present invention is not limited to the above example, and for example, a carbon fiber bundle may be wrapped in a viscoelastic material to form a rod shape to form a supplementary compulsory vibration member. Of course, in that case, the compulsory vibration damping sheet may be formed by forming the compulsory vibration damping member into a thin rod shape and assembling a plurality of nets. The reinforcing fiber in the supplementary compulsory vibration member of the present invention is not limited to carbon fiber, and may be aramid fiber, glass fiber, metal fiber, or the like.

Further, the present invention can be applied to structures in all fields without being limited to building structures, and it can be considered to be applied to fields such as transportation equipment such as automobiles and aircraft, industrial equipment such as robots, and the like.

[Brief description of drawings]

1A and 1B are a side view and a perspective view showing a first embodiment of a structure reinforcing and damping member according to the present invention.

2 (a) and 2 (b) are a side view and a perspective view showing a second embodiment of a reinforcing and damping member for a structure according to the present invention.

3 (a) and 3 (b) are a side view and a perspective view showing a third embodiment of a reinforcing and damping member for a structure of the present invention.

4 (a) and 4 (b) are a side view and a perspective view showing a fourth embodiment of the reinforcing and damping member for a structure of the present invention.

FIG. 5 is a front view showing a first embodiment of the structure reinforcing and damping structure according to the present invention.

FIG. 6 is a front view showing a second embodiment of the structure reinforcing and damping structure of the invention.

FIG. 7 is a front view showing a third embodiment of the structure reinforcing and damping structure of the invention.

FIG. 8 is a front view showing a fourth embodiment and a fifth embodiment of the structure reinforcing and damping structure of the invention.

9A and 9B are front views showing a sixth embodiment of the structure reinforcing and damping structure of the invention and a fifth embodiment of the structure reinforcing and damping member of the invention. It is a figure and a side view.

10 (a) and 10 (b) are a front view and a side view showing a sixth embodiment of the reinforcing and damping member for the structure of the present invention.

11 (a) and 11 (b) are a front view and a side view showing a seventh embodiment of the reinforcing and damping member for the structure of the present invention.

12 (a) and 12 (b) are a front view and a view A thereof showing a seventh embodiment of the structure reinforcing and damping structure of the invention.
It is sectional drawing which follows the -A line.

FIG. 13 is a front view showing an eighth embodiment of the structure reinforcing and damping structure of the invention.

[Explanation of symbols]

1 Supplementary vibration sheet 1a carbon fiber sheet 1b rubber sheet 1c CF anchor 1d rubber 2 staples 3 pillar members 4 Beam members 5 cane material 6 Base material 7 Fixing bracket 8 volt 11 Supplementary compulsory swing bar 11a rubber rod

Continued front page    F-term (reference) 2E001 DG01 EA08 FA01 FA02 FA21                       GA24 GA47 GA62 GA63 GA64                       GA65 HA00 HE01 JA22 JA29                       JB07 JD05

Claims (5)

[Claims] 1. A reinforcing fiber and a viscoelastic material are bonded together,
Reinforcement of structure and damping member. 2. A reinforcing and damping structure for a structure, wherein the reinforcing and damping member according to claim 1 is stretched and fixed to a frame of the structure. 3. A reinforcing and damping structure for a structure, wherein the reinforcing and damping member according to claim 1 is stretched and fixed to a joint portion of the structure. 4. An intersection of reinforcing fibers stretched across a frame or joint of a structure so as to intersect each other,
Reinforcement and damping structure for structures, which are in slidable contact with each other via a viscoelastic material. 5. The fixing fiber is fixed to the constituent material of the structure by fixing the reinforcing fiber to the U-shaped metal fitting which is driven into the constituent material, or screwed onto the constituent material from above the reinforcing fiber. The reinforcing and damping structure for a structure according to any one of claims 2 to 4, wherein the reinforcing member is a U-shaped metal fitting.