JPH1150691A - Earthquake resistant reinforcing construction of structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an earthquake resistant reinforcing construction wherein a high earthquake resistant performance can be obtained, noises or vibration are not produced in the execution of construction, a construction work can be performed easily, and constituents of the structure are light in weight so that a structure can be easily constructed and large loads are prevented from being applied to the structure. SOLUTION: In the earthquake resistant reinforcing construction of a structure 2, an FRP reinforced body 20 is disposed in a frame opening 8 surrounded by columns 20 and beams 6. The body 20 comprises an FRP frame body 22 made of a lightweight FRP of high strength and an FRP braces 24. The body 20 is bonded integrally to the columns 4 and beams 6 through epoxy resin adhesives so that the shearing strength and bending strength of a structure 2 can be improved and the earthquake resistant performance thereof can be enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seismic reinforcement structure for a structure, and more particularly to a seismic reinforcement structure for a frame opening defined by columns and beams.

[0002]

2. Description of the Related Art At present, as a seismic retrofitting method for a structure, for example, a reinforcing material such as a high-strength carbon fiber material or a reinforcing plate is provided around a pillar of the structure, and a seismic wall is provided at a frame opening. There have been various proposals for seismic reinforcement of structures.

FIG. 8 shows a conventional example of a seismic strengthening structure in which a reinforcing member 10 is disposed in a frame opening 8 defined by columns 4 and beams 6 of a structure 2. In this seismic retrofit structure, the reinforcing body 10 provided in the frame opening 8 includes:
The steel frame 12 includes a steel frame 12 integrally joined to the column 4 and the beam 6 along the same, and a steel brace 14 that extends over the steel frame 12. Steel frame 12
The steel brace 14 is formed of a steel material such as an H-section steel or a steel pipe. The steel frame 12 is integrally joined via an anchor 16 fixed to the column 4 or the beam 6. A filler 18 such as mortar is provided in a gap formed between the steel frame 12 and the column 4 or the beam 6. The structure 2 to be seismically reinforced by such a reinforcing member 10 may be an existing one or a new one.

As described above, the reinforcing member 10 as described above is provided in the frame opening 8 defined by the column 4 and the beam 6 of the structure 2 so that the column 4 of the structure 2 is provided. The shear strength and bending strength of the beam 6 increase, and the seismic performance increases.

[0005]

However, in the seismic retrofitting structure in which the reinforcing member 10 made of a steel material as described above is provided, when the reinforcing member 10 is integrally joined to the column 4 or the beam 6, The anchor 16 must be driven into the constructed column 4 or beam 6, and there is a problem that noise and vibration are generated when the anchor 16 is driven, which adversely affects the surrounding environment. For this reason, if the target structure of the seismic retrofitting work is, for example, a hospital or precision equipment factory, or if these hospitals or precision equipment factories are erected in the surrounding area, So-called “Construction while living”, where construction is performed during hours when
Cannot be performed, causing problems such as prolonging the construction period.

Further, since the steel frame material forming the steel frame portion 12 and the steel brace portion 14 of the reinforcing member 10 usually has a considerable weight, it causes difficulties in construction work such as mounting and the like, and the structure has a large size. There were problems such as applying a load.

[0007] The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is not only to achieve high seismic reinforcement performance, but also to generate almost no noise or vibration at the time of construction, thereby enabling "construction while living". Another object of the present invention is to provide a seismic reinforcement structure for a structure that can reduce the weight of the structural component, facilitate the construction work, and does not need to apply a large load to the structure.

[0008]

According to a first aspect of the present invention, there is provided a seismic reinforcement structure for a structure, the frame opening being defined by columns and beams of the structure. An FRP reinforcement comprising an FRP frame body portion integrally arranged and joined to the pillars and the beams along the inside thereof, and an FRP brace portion provided so as to be bridged inside the FRP frame portion. It is characterized by having a body.

In the seismic reinforcement structure having such a structure, the FR
The FRP reinforcement consisting of the P frame and the FRP brace is not made of a steel frame as in the past, but is made of a lightweight and high-strength FRP. And beams,
Problems such as loud noise and vibration caused by construction can be eliminated. Therefore, even if the target structure of the seismic retrofitting work is, for example, a hospital or precision equipment factory, or if these hospitals or precision equipment factories are erected in the surrounding area, "Construction while staying", in which construction is performed during the time when the factory is operating, can be performed, and the construction period can be prevented from becoming longer. Further, since the FRP reinforcement itself is light in weight and high in strength, seismic performance comparable to that of the conventional FRP reinforcement can be implemented with a component having a small cross-sectional size, and considerable weight reduction can be achieved. . As a result, construction work such as installation can be facilitated in the seismic retrofitting work as compared with the related art, and the structure does not need to apply a large load.

[0010] In the seismic retrofitting structure for a second structure according to the present invention, the frame opening is vertically extended in a frame opening defined by columns and beams of the structure. The two FRP reinforcing panels to be covered are arranged side by side while being integrally joined to the pillar and the beam, respectively.

In the seismic retrofit structure having such a structure, the frame opening is vertically arranged in the frame opening defined by the columns and beams of the structure so as to cover the frame opening vertically. The two FRP reinforcing panels exert the same reinforcing effect as the sleeve wall provided on the pillar. In particular, FRP reinforced panels are lightweight and high-strength, so they can provide excellent seismic retrofitting performance, can be easily installed, and can shorten the construction period, and have a large load on structures. No burden.

Further, a stress transmitting member having a rigidity according to a proof strength required for the frame opening is interposed between the FRP reinforcing panels. The stress transmitting member connects the two FRP reinforced panels so that they can transmit stress to each other. The stress transmitting member secures integrity between the two FRP reinforced panels, and a brace is provided at the frame opening. The same seismic reinforcement effect as in the case of If this stress transmitting member is formed to have higher rigidity, a considerably large seismic strengthening effect can be provided at the opening of the frame, and by adjusting the rigidity of the stress transmitting member, the strength required for the opening of the frame can be adjusted. Desired seismic reinforcement can be performed.

Further, in the third structure of the present invention, the frame opening is formed in a frame opening defined by columns and beams of the structure, and the frame opening extends in the left-right direction. While two covering FRP reinforcement panels are arranged side by side while being integrally joined to the pillar and the beam, respectively,
A stress transmission member having a rigidity corresponding to a proof strength required for the frame opening is interposed between the FRP reinforcing panels.

[0014] In such a seismic retrofit structure, two frames are vertically arranged in a frame opening defined by columns and beams of the structure so as to cover the frame opening in the left-right direction. The FRP reinforcement panel exhibits the same seismic reinforcement effect as when a waist wall is provided from the floor and a leaning wall is provided from the ceiling. Since the two FRP reinforced panels are lightweight and high-strength, an excellent seismic reinforced structure can be obtained as in the above-mentioned case, and installation work such as mounting is easy and the construction period can be shortened. There is no need to apply a large load to the structure. In addition, the stress transmitting member between the two FRP reinforcing panels provides the same seismic strengthening effect as in the case where the brace is provided for the frame opening, and adjusts the rigidity of the stress transmitting member, as in the above case. By
Desired seismic reinforcement can be performed. Further, since this stress transmitting member is interposed between two FRP reinforcing panels arranged vertically, the same as in the case where a pillar (stud) is provided for the frame opening. The reinforcing effect can be obtained, and the effect of increasing the strength against long-term load and the effect of strengthening the earthquake can be obtained.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION The pillars of a structure according to the present invention are described below.
An embodiment of a beam seismic retrofitting method will be described with reference to the accompanying drawings. Note that the same components as those in the related art are denoted by the same reference numerals.

FIG. 1 shows a first embodiment of an earthquake-resistant reinforcement structure for a structure according to the present invention. Structure 2
Has a rectangular planar space surrounded by columns 4 and beams 6. The structure 2 may be an existing structure or a new structure (hereinafter, the same applies to the second to fourth embodiments). In structure 2,
A rectangular frame opening 8 defined by columns 4 and beams 6 of the structure 2 is defined. The seismic retrofit structure according to the first embodiment has a structure in which an FRP reinforcing body 20 is disposed in a frame opening 8 defined by the columns 4 and the beams 6.

The FRP reinforcement 20 is mainly composed of an FRP frame 22 disposed along the columns 4 and the beams 6 of the structure 2 and an FRP frame 22.
An FRP brace 24 is provided so as to extend over the inside of the P frame 22. The FRP frame 22 and the FRP brace 24 are made of a lightweight and high-strength fiber reinforced composite material (Fiber Reinforced P).
lasts: FRP). Specifically, the FRP frame portion 22 or the FRP brace portion 24 is formed from an FRP material such as carbon fiber, aramid fiber, and vinylon.

Here, the FRP frame portion 22 is made of, for example, a tubular material having a rectangular cross-section or the like, a shape material having an L-shaped or H-shaped cross-section, or a shaft having a shape such as a solid square or round material. It is formed by assembling into a shape. The FRP frame 22 has an outer shape corresponding to the inner shape of the frame opening 8, is fitted inside the frame opening 8, and is integrally joined to the column 4 or the beam 6 by bonding or the like. It is provided. To bond the FRP frame 22 to the columns 4 and the beams 6, the FRP frame 22 is disposed in the frame opening 8 and then formed between the FRP frame 22 and the columns 4 and the beams 6. An adhesive 26 such as an epoxy resin adhesive is injected into the gap thus formed and joined. As shown in FIG. 1, the joint between the FRP frame 22 and the column 4 or the beam 6 may be provided over the entire circumference along the outer circumferential direction of the FRP frame 22.
It may be provided partially at intervals.

On the other hand, the FRP brace portion 24 is disposed in two places inside the FRP frame portion 22 in a C-shape. Each FRP brace portion 24 is provided so as to extend diagonally from the center of the upper side of the rectangular FRP frame 22 to each lower corner inside the FRP frame 22.
Each FRP brace portion 24 includes two FRP brace members 24a and an FRP joint member 24b.
These two brace members 24a and joint members 24b
Are connected in a straight line. Each brace member 24a
As in the case of the FRP frame 22, for example, it is formed from a tubular material having a rectangular cross-section or the like, a shape material having an L-shaped or H-shaped cross-section, or a solid square material, a round material, or a shaft material having a form such as a strip material. Have been. One end of each brace member 24a is integrally joined to the FRP frame 22. On the other hand, the other end of each brace member 24a is connected to a joint member 24b.
Are integrally joined. The joint member 24b integrally connects the brace members 24a to each other. The form of the joint member 24b may have another form as long as the plate body, the cylindrical body, and the other two brace members 24a can be connected. The brace member 24a and the FRP frame 22 and the brace member 24a and the joint member 24b are joined with an adhesive. In particular, it is preferable to use an epoxy resin adhesive for this bonding. In addition, a joining plate 28 is interposed between the brace member 24a and the FRP frame 22, or a reinforcing plate 30 is attached as a stiffener for the joining portion. In addition, these joining plate 28 and reinforcing plate 30
Instead of being formed from RP, it may be formed from other materials such as metal.

The FRP reinforcing member 20 may be manufactured entirely at the site, or may be manufactured at a factory in advance and brought to the site.
2 and the FRP brace section 24 may be separately manufactured in a factory and assembled on site.
One of the frame portion 22 and the FRP brace portion 24 may be manufactured at a factory, and the other may be manufactured while assembling it later on site.

The FRP disposed in the frame opening 8 defined by the columns 4 and the beams 6 of the structure 2 as described above.
Since the reinforcing member 20 is not formed from a steel frame material as in the related art, but is formed from a lightweight and high-strength FRP, it can be applied to the columns 4 and the beams 6 by resin bonding without using an anchor. In addition, it is possible to eliminate a problem that large vibration or noise is caused during construction. Therefore,
Even if the target structure 2 for the seismic retrofitting is, for example, a hospital or precision equipment factory, or if these hospitals or precision equipment factories are erected in the surrounding area, these hospitals or precision equipment factories may be used. It is possible to perform “construction while staying”, where construction is performed during the time when the system is operating, and it is possible to prevent the construction period from becoming longer.

Further, since the FRP reinforcing body 20 itself is light in weight and high in strength, the seismic performance equivalent to that of the conventional FRP reinforcing body 20 can be implemented by using a component having a small cross-sectional size. Can be planned. Thereby, construction work such as installation can be facilitated in the seismic retrofitting work as compared with the related art, and it is not necessary to apply a very large load to the structure 2.

In the first embodiment, the frame opening 8 defined by the columns 4 and the beams 6 is formed in a rectangular shape. However, the present invention is not limited to this. May be formed. In this case, the FRP frame 22 is formed so as to correspond to the shape of the frame opening 8. Further, the FRP brace portion 24 is wrapped around the inside of the FRP frame portion 22 in a C-shape at two places. However, the present invention is not limited to this, and one or three or more places may be provided. It may be arranged in another form other than the letter "C". Further, the FRP brace portion 24 includes two brace members 24a and a joint member 24b.
However, the present invention is not limited to this, and the present invention may be configured with one brace member 24a without the joint member 24b, or with three or more brace members 24a and two or more joint members 24b. You may comprise.

2 to 4 show a second embodiment of the seismic reinforcement structure for a structure according to the present invention. In the seismic retrofit structure according to the second embodiment, as shown in FIG. 2, the frame opening 8 of the structure 2 includes two upper and lower beams 6a,
6b and two rectangular columns 4a and 4b. The seismic retrofit structure according to this embodiment includes two F
The RP reinforcement panels 32 are arranged side by side. The two FRP reinforcement panels 32 respectively cover the right and left sides of the frame opening 8 in the vertical direction. That is, the two FRP reinforcement panels 32 are formed so that their outer shapes correspond to the inner shapes of the right and left portions of the frame opening 8, respectively. The upper and lower ends of each FRP reinforcing panel 32 are connected to the upper and lower beams 6.
a and 6b are integrally joined. In addition, the left edge of the FRP reinforcement panel 32 on the left side has a frame opening 8.
The right end edge of the right FRP reinforcing panel 32 is integrally joined to the right pillar 4b, respectively. Each of these FRP reinforcing panels 32 and columns 4a, 4b
Alternatively, the joining with the beams 6a and 6b is performed using an adhesive such as an epoxy resin adhesive. In addition, the joint part of each FRP reinforcement panel 32 and pillar 4a, 4b or beam 6a, 6b is
Both the FRP reinforcing panel 32 and the pillars 4a, 4b or the beams 6a, 6b do not necessarily need to extend over the entire portion adjacent to each other, but may be partially joined.

As shown in FIG. 3, each FRP reinforcing panel 32 mainly includes a flat plate portion 34 and a rib portion 36. The flat plate portion 34 is formed of a plate material made of FRP having a predetermined thickness. On the other hand, the rib portion 36 is formed in a flange shape on the outer edge portion of the flat plate portion 34, and is formed along a joint portion between the FRP reinforcing panel 32 and the columns 4a, 4b or the beams 6a, 6b. The rib portion 36 is, in addition to the FRP,
It may be formed from other materials such as metal. By forming the rib portions 36 in this manner, a large joint area can be secured between the FRP reinforcing panel 32 and the columns 4a, 4b or the beams 6a, 6b, and the FRP reinforcing panel 32 and the columns 4a, 4b, It is possible to increase the joining force between the beam 4b or the beams 6a and 6b, and to enhance mutual integrity.

The notch 38 formed in the center of the right or left edge of the FRP reinforcement panel 32 is for allowing the FRP reinforcement panel 32 to bend up and down and bend. The notch 38 is formed so as to bite from the rib 36 of the FRP reinforcing panel 32 to the flat plate 34. In addition to this, the notch 38 does not need to bite into the flat plate 34 in this way, and the rib 36
May be formed only. Further, the notch 38 does not necessarily need to be formed at the center of the right or left edge of the FRP reinforcing panel 32, and may be formed at another location as long as the FRP reinforcing panel 32 can be bent. As described above, if the FRP reinforcing panel 32 can be bent, the FRP reinforcing panel 32 can be bent and fitted into the frame opening 8 when disposing the FRP reinforcing panel 32 in the frame opening 8.
Construction work can be facilitated.

Each of the FRP reinforcing panels 32 has an FRP along a right edge of the left FRP reinforcing panel 32 and a left edge of the right FRP reinforcing panel 32, respectively. The tapered portion 40 is provided so as to be inclined so as to gradually narrow the interval between the reinforcing panels 32 from both upper and lower sides. If such a tapered portion 40 is provided in the FRP reinforced panel 32, as shown in FIG. 4, an insert 42 such as a wedge is press-fitted between the FRP reinforced panels 32 from both upper and lower sides along the tapered portion 40. Thereby, a considerable pressing force can be applied to the two FRP reinforcing panels 32 in a direction away from each other. Thereby, the FRP reinforcement panel 32 is connected to the columns 4a, 4
b or the beams 6a and 6b can be pressed with a considerable force. When this is performed at the time of joining each FRP reinforcing panel 32 and the columns 4a and 4b or the beams 6a and 6b, the adhesiveness between the two can be improved. Can be enhanced. Here, an insert 42 such as a wedge
Regarding the above, after the FRP reinforcing panel 32 is installed, the FRP reinforcing panel 32 may be pulled out or removed, or may be left interposed.

The FRP reinforcing panel 32 may be manufactured on site or may be manufactured in a factory in advance and then brought to the site.

As described above, the columns 4a and 4b of the structure 2 and the beams 6
a, 6b, the frame opening 8 defined by FR
By arranging the P reinforcing panels 32 side by side, it is possible to obtain the same reinforcing effect as when the sleeve walls are provided on the columns 4a and 4b. Also, FRP reinforcement panel 32
Since it is lightweight and high-strength, it can be installed on the columns 4a and 4b and the beams 6a and 6b with an adhesive that does not use anchors, unlike the conventional case of seismic reinforcement with steel frames.
"Construction while living" can be performed. In addition, the FRP reinforcement panel 32 itself is light in weight and high in strength, so that it is possible to implement seismic performance comparable to the conventional one with a component having a small cross-sectional size. Construction work is easy, and it is not necessary to apply a very large load to the structure 2. In addition, the support (support) required for reinforcement by the conventional frame is unnecessary, and the workability is improved.

In the second embodiment, the frame opening 8 defined by the columns 4a and 4b and the beams 6a and 6b is formed in a rectangular shape. The present invention is not limited to this, and may be formed in other shapes. in this case,
The outer shapes of the two FRP reinforcing panels 32 are formed so as to correspond to the inner shapes of the right and left portions of the frame opening 8, respectively. In addition, FRP reinforcement panel 3
2, the rib 36, the notch 38, and the taper 4
It is not necessary to provide 0. Further, the two FRP reinforcing panels 32 are disposed with a space between them on the left and right, but may be disposed with a space between the front and rear, and may be provided in other forms. Good.

FIG. 5 shows a third embodiment of the seismic retrofit structure of the structure 2 according to the present invention. In this earthquake-resistant reinforcement structure, a stress transmission member 44 is interposed in a gap formed between the two FRP reinforcement panels 32 of the second embodiment. The stress transmitting member 44 connects the two FRP reinforcing panels 32 so as to transmit stress to each other, and is formed of a member capable of transmitting stress, such as a shear panel. The stress transmitting member 44 is connected to the frame opening 8.
Are arranged on a diagonal line of. Stress transmission member 4
4 may be formed from FRP or another material.

By providing the stress transmitting member 44 between the two FRP reinforcing panels 32 in this manner, the two
The FRP reinforcement panels 32 can be integrated with each other. With this, when a deformation external force is applied to the frame opening 8 so as to distort the same, the same seismic strengthening effect as when a brace is provided along the diagonal direction is obtained for the frame opening 8. Can be. If the stress transmitting member 44 is formed with higher rigidity, the resistance to stresses such as shear stress input to the stress transmitting member 44 is increased, and the seismic reinforcement performance of the frame opening 8 is enhanced. By adjusting the rigidity of the transmission member 44,
Desired seismic reinforcement according to the strength required for the frame opening 8 can be performed.

By the way, in the third embodiment, the two FRP reinforcing panels 32 are disposed at an interval on the left and right, and the stress transmitting member 44 is interposed between them. If the two FRP reinforcing panels 32 are arranged at an interval in the front and rear, or if they are arranged in other forms, the two FRP reinforcing panels 32 are accordingly arranged.
It is arranged between the reinforcing panels 32. Further, the stress transmitting member 44 does not necessarily need to be disposed on a diagonal line of the frame opening 8.

FIGS. 6 and 7 show a fourth embodiment of the seismic reinforcement structure of the structure 2 according to the present invention. This aseismic reinforcement structure has two FRP reinforcement panels 32 similar to those of the second embodiment, and the columns 4a, 4 of the structure 2.
b, and vertically arranged in a frame opening 8 defined and surrounded by beams 6a and 6b, and arranged using an epoxy resin adhesive or the like as in the case of the second embodiment. is there. Each FRP reinforcing panel 32 covers the frame opening 8 in the left-right direction. Each FRP reinforcement panel 32
Are integrally joined to the left and right columns 4a and 4b by an epoxy resin adhesive or the like, respectively. The upper FRP reinforcing panel 32 is connected to the upper beam 6a, and the lower FRP reinforcing panel 32 is connected to the lower beam 6b. Are integrally joined by an epoxy resin adhesive or the like. In the gap formed between the two FRP reinforcing panels 32, a stress transmitting member 44 made of a shear panel or the like is interposed as in the case of the third embodiment. This stress transmitting member 4
Reference numeral 4 is disposed on a diagonal line of the frame opening 8.

In the case where the FRP reinforcing panels 32 are arranged side by side in this manner, two FRP reinforcing panels 32 are provided.
Therefore, it is possible to obtain the same seismic strengthening effect as when the waist wall is provided from the floor side and the leaning wall is provided from the ceiling side. As in the case of the third embodiment, when a deformation external force is applied to the frame opening 8 so as to distort the frame opening 8, a diagonal line of the frame opening 8 is formed. The same seismic strengthening effect as when the braces are arranged along can be obtained. In addition, a reinforcement effect similar to that in the case where columns (studs) are provided is obtained for the frame opening 8, and an effect of increasing the proof stress against a long-term load and an effect of strengthening earthquake resistance can be obtained. Further, if the rigidity of the stress transmitting member 44 is adjusted, as in the case of the third embodiment,
Desired seismic reinforcement can be performed.

In the second to fourth embodiments, the frame opening 8 surrounded by the columns 4a and 4b and the beams 6a and 6b is defined in a rectangular shape. However, the present invention is not limited to this. However, the present invention can be similarly applied even if the shape is defined in another shape. In the first to fourth embodiments, when the structure 2 has the frame openings 8 at a plurality of positions, the FR
The P reinforcing member 20 and the FRP reinforcing panel 32 are not limited to one frame opening 8, and may be disposed at a plurality of positions.

[0037]

According to the first structure of the present invention, as described in the embodiment of the present invention, according to the seismic reinforcement structure of the first structure, the inside of the frame opening defined by the columns and beams of the structure is defined. And F
Since a lightweight and high-strength FRP reinforcing body composed of the RP frame and the FRP brace is provided, the construction can be performed with an adhesive or the like without using an anchor, and problems such as causing large noise and vibration can be solved. . As a result, even if the target structure is, for example, a hospital or a precision equipment factory, or if these hospitals or precision equipment factories are erected in the surrounding area, it is possible to perform “construction while staying”. It is possible to prevent the construction period from being lengthened. Also, F
Since the RP reinforcement is lightweight, construction work such as mounting is facilitated, the construction period can be shortened, and a large load is not applied to the structure.

Further, according to the seismic reinforcement structure of the second structure according to the present invention, the frame opening is vertically enclosed in the frame opening defined by columns and beams of the structure. By arranging the two FRP reinforcing panels side by side while being integrally joined to the column and the beam, the same excellent seismic reinforcement effect as in the case where the column is provided with the sleeve wall can be obtained. In addition, construction is possible with adhesives without using anchors,
"Construction while staying" can be performed, and the construction period can be prevented from becoming longer. Also, because the FRP reinforced panel is lightweight,
Installation work such as mounting is easy, the construction period can be shortened, and a large load is not applied to the structure.

Further, if a stress transmitting member having a rigidity corresponding to the strength required for the frame opening is interposed between the FRP reinforcing panels, the same as when a brace is provided at the frame opening. In addition to obtaining a strong seismic reinforcement effect, by adjusting the rigidity of the stress transmitting member, it is possible to perform desired seismic reinforcement in accordance with the strength required for the frame opening.

In addition, according to the third structure of the present invention, the frame opening is covered in the left and right direction within the frame opening defined by the columns and beams of the structure. By arranging a plurality of FRP reinforcing panels vertically, it is possible to obtain the same excellent seismic strengthening effect as when a waist wall is provided from the floor side and a leaning wall is provided from the ceiling side. Since the reinforcing panel is lightweight, construction work such as mounting is easy, the construction period can be shortened, and a large load is not applied to the structure. In addition, a brace was provided in the frame opening as in the case described above by interposing a stress transmitting member having a rigidity corresponding to the strength required for the frame opening between the FRP reinforcing panels. The same seismic strengthening effect as in the case is obtained, and the desired seismic strengthening can be performed by adjusting the rigidity of the stress transmitting member, and the same reinforcing effect as when a column (stud) is provided. In addition, it is possible to obtain an effect of increasing the strength against a long-term load and an effect of reinforcing the earthquake. In addition, in such an earthquake-resistant reinforcement structure, since construction can be performed using an adhesive or the like without using an anchor, “construction while staying” can be performed, and a prolonged construction period can be prevented.

[Brief description of the drawings]

FIG. 1 is a front view showing a first embodiment of an earthquake-resistant reinforcement structure for a structure according to the present invention.

FIG. 2 is a front view showing a second embodiment of the earthquake-resistant reinforcement structure for a structure according to the present invention.

FIG. 3 is a perspective view showing an embodiment of the FRP reinforcing panel according to the present invention.

FIG. 4 is an FRP according to a second embodiment of the present invention.
It is explanatory drawing which showed an example of the construction method of the reinforcement panel.

FIG. 5 is a front view showing a third embodiment of the earthquake-resistant reinforcement structure for a structure according to the present invention.

FIG. 6 is a front view showing a fourth embodiment of the earthquake-resistant reinforcement structure for a structure according to the present invention.

FIG. 7 is a front view illustrating another operation of the fourth embodiment of the earthquake-resistant reinforcement structure for a structure according to the present invention.

FIG. 8 is a front view showing an example of a conventional earthquake-resistant reinforcement structure for a structure.

[Explanation of symbols]

 2 Structure 4 Column 6 Beam 8 Frame opening 20 FRP reinforcement 22 FRP frame 24 FRP brace 32 FRP reinforcement panel 34 Flat plate 36 Rib 40 Taper 42 Insert 44 Stress transmission member

────────────────────────────────────────────────── ─── front page continued (51) Int.Cl. ⁶ identifications FI E04B 2/56 605 E04B 2/56 605F 605M 611 611D 622 622N 622B 632 632N 632B 632C 643 643A 651 651D 651S 652 652N

Claims (4)

[Claims] 1. An FRP frame portion integrally disposed in a frame opening defined by columns and beams of a structure, the FRP frame portion being disposed along the columns and the beams and integrally joined thereto. A seismic reinforcement structure for a structure, comprising: an FRP reinforcing member including an FRP brace portion provided so as to be bridged inside the FRP frame portion. 2. In a frame opening defined by columns and beams of a structure, two FRP reinforcing panels covering the frame opening in the vertical direction are integrally formed on the columns and the beams, respectively. Seismic reinforcement structure for structures characterized by being arranged side by side while joining. 3. The structure according to claim 2, wherein a stress transmitting member having a rigidity corresponding to a proof strength required for the frame opening is interposed between the FRP reinforcing panels. Seismic reinforcement structure. 4. In a frame opening defined by columns and beams of a structure, two FRP reinforcing panels covering the frame opening in the left-right direction are integrated with the columns and the beams, respectively. While joining and arranging vertically, the F
An earthquake-resistant reinforcing structure for a structure, wherein a stress transmitting member having a rigidity corresponding to a strength required for the frame opening is interposed between the RP reinforcing panels.