JPH09256509A - Forming method of earthquake-resisting reinforced structure imparted with vibration damping function and earthquake-resisting reinforced structure formed by the method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To damp new-construction or existing structure easily by a method wherein upper and lower horizontal frame members are arranged in a space surrounded by upper and lower mainly-installed beams and mainly-installed columns, and fixed onto the corresponding mainly- installed beams respectively, and the upper and lower horizontal frame members are connected through vibration dampers. SOLUTION: A frame body 7, in which ribs 20, 21 are welded beforehand to upper and lower frame members 8, 9, is prepared, the frame body 7 is disposed in a space 6 surrounded by mainly-installed beams 2, 3 and mainly-installed columns 4, 5, the ribs 20, 21 are welded and fixed to the beams 2, 3 respectively, and a vibration damper 10 is arranged between the horizontal frame members 8, 9 and fastened to the horizontal frame members 8, 9. The horizontal rocking of the beams 2, 3 and the mainly-installed columns 4, 5 by an earthquake are transmitted to a resistance plate 31 and a case 38 for the device 10 as horizontal displacement in the mutual opposite directions through the ribs 20, 21 and the frame body 7. Since a viscous body 37 is shorn by the horizontal displacement in the mutual opposite directions of the resistance plate 31 and the case 38, viscous shearing resistance is generated in the viscous body 37, thus damping the horizontal rocking of the beams 2, 3 and the mainly- installed columns 4. 5.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a structure, for example,
The present invention relates to a method of forming an earthquake-proof reinforcing structure having a vibration damping function such as a damping wall when a building, an apartment or the like is newly built or refurbished, and an earthquake-proof reinforcing structure formed by this method.

[0002]

Recently, structures are required to be vibration-damped and seismic-resistant, and therefore, it is possible to install a seismic isolation device on the foundation or roof of a structure when constructing the structure. Proposed. This type of seismic isolation device is often
It is intended to absorb and attenuate the energy of horizontal vibration of an earthquake to prevent a large horizontal vibration from being directly applied to a structure or to prevent a large horizontal vibration from being applied to a structure.

By the way, a seismic isolation device is installed on the foundation or roof of a structure as described above and absorbs horizontal vibration energy applied to or added to the structure. In addition to having a sufficient cost effect for large structures, it is usually done at the time of construction, and it is used to control new small and medium-sized structures or existing large structures. Shaking or seismic retrofitting can be extremely expensive and difficult.

Therefore, the present invention has been made in view of the above points, and it is an object of the present invention to easily damping or earthquake-proof a newly constructed or existing large to small structure. Another object of the present invention is to provide a method for forming a seismic strengthening structure having a vibration damping function, and a seismic strengthening structure formed by this method.

[0005]

The present invention has been made by paying attention to a main beam and a main column that define the inside of a structure. The upper and lower horizontal frame members are arranged in the enclosed space, and the upper and lower horizontal frame members are fixed to the corresponding main beam, respectively, and the upper and lower horizontal frame members are
The object is achieved by a method of forming a seismic reinforcing structure having a vibration damping function, which is characterized in that the objects are connected through a vibration damping device.

According to the present invention, the above object is also arranged in the space surrounded by the upper and lower main beams and the main columns, and the upper horizontal frame member and the lower main frame fixed to the upper main beams are provided. It is also achieved by an earthquake-proof reinforcement structure including a frame body having at least a lower horizontal frame member fixed to a beam and a vibration damping device connected between the upper and lower horizontal frame members.

The present invention is applicable to general structures such as S and SR.
It can be applied to C or RC structures. When removing an existing finishing material when repairing an existing wall into a damping wall, which is an example of a seismic strengthening structure, ensure that the rod made up of the main beam and the main column is not deformed. In order to transmit the vibration to the damping wall, it is preferable to remove the finishing material until the upper and lower surfaces of the main beam and the side surfaces of the main pillar are exposed.

In both the new construction and the renovation, when the frame is fixed to the upper and lower main beams, the vibration applied to the main beam is efficiently transmitted to the vibration damping device through the frame. It is good to fix the upper and lower main beams and the upper and lower horizontal frame members through ribs by welding or the like, as an example,
The lower horizontal frame member and the vibration damping device may be connected by an anchor bolt or the like. At this time, in addition to the upper and lower horizontal frame members, vertical frame members bridging the upper and lower horizontal frame members at both ends thereof may be arranged separately from the main pillar. So-called steel frames are used for the upper and lower horizontal frame members and the vertical frame members, but these steel frames may be rigidly connected to each other by a rigid frame structure or may be connected to each other by a pin structure.

According to the present invention, the first resistance plate means, the second resistance plate means arranged to face the first resistance plate means with a gap, and the viscosity arranged in the gap. A vibration damping device including a body is prepared, and the vibration damping device is provided with the first resistance plate means on the upper horizontal frame member and the second resistance plate means on the lower horizontal frame member. The first rotary plate means and the second rotary plate means facing the first rotary plate means with a gap and rotatably disposed, and the first rotary plate means and the gap. The arranged viscous body, a pair of first links rotatably connected to the first rotary plate means at the point-symmetrical positions of the rotation centers of the first and second rotary plate means, respectively. Rotational connection of the pair of first links to the first rotary plate means at a point symmetric position of the rotation center of the second rotary plate means. At a position rotated by 90 degrees with respect to the mounting position, each of them is rotatably connected to the second rotary plate means and also connected to one end of each of the adjacent first links at each one end to form a pair of first rotary links. A vibration damping device including a pair of second links forming a four-bar linkage with one link is prepared, and the vibration damping device is provided with a set of adjacent nodes of the four-bar chain on the upper lateral frame member. Via the lower horizontal frame member via another pair of adjacent nodes in which the four-bar chain remains, and further, the cylinder and the cylinder are movably arranged in the axial direction, A vibration damping device provided with a rod having an enlarged portion in the cylinder and a fluid disposed in the cylinder is prepared, and the vibration damping device is mounted on the upper lateral frame member of either the cylinder or the rod. One of the cylinder and rod to the lower horizontal frame member In addition to the reciprocating direct-acting type, the cylinder, the rotating shaft rotatably arranged in the cylinder, the fluid arranged in the cylinder, and the cylinder An oscillating (rotating) vibration damping device provided with a peripheral surface and a protrusion provided on the rotary shaft is prepared, and the upper horizontal frame member is provided with either the cylinder or the rotary shaft, The lower horizontal frame member may be connected via the other one of the cylinder and the rotating shaft, but is not limited to this, and other vibration damping devices are prepared,
This may be connected to the upper and lower horizontal frame members in the same manner as described above.

In the above vibration damping device, the viscous material is a highly viscous material having a viscosity coefficient of thousands to tens of thousands of centipoise, for example, a polymer fluid exhibiting non-Newtonian fluid behavior, specifically, a polyolefin-based or poly-based fluid. Preferred examples include siloxane-based fluids and other hydrocarbon-based polymer fluids having a large molecular weight.

In the reciprocating direct-acting type vibration damping device of the present invention, a rod may be provided so as to penetrate the cylinder, while in the swing type vibration damping device, the cylinder and the rotation to the upper lateral frame member. The connection of either one of the shafts or the connection of the other of the cylinder and the rotating shaft to the lower horizontal frame member may be performed by interposing a pair of link members. As the fluid, lead, silicon viscoelastic material or viscoelastic material containing natural rubber or synthetic rubber as a main component may be used. Furthermore, in the reciprocating direct acting type vibration damping device, When the enlarging portion is implemented by the defining member having the two chambers and the orifice that communicates the two chambers with each other, the fluid may be an oil liquid.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention will be described based on a preferred embodiment shown in the drawings, which is a method for forming a damping wall on an existing structure, which is one example of a seismic strengthening structure. Further details will be described. The present invention is not limited to these examples.

[0013]

1 and 2, a damping wall 1 as a seismic strengthening structure of this example is arranged in a space 6 surrounded by upper and lower main beams 2, 3 and main columns 4, 5. Frame body 7
A vibration damping device 10 connected between the upper and lower horizontal frame members 8 and 9 of the frame body 7, and walls 11 and 12 arranged so as to cover the vibration damping device 10 and close the space 6 are provided. ing.

Upper and lower main beams 2, 3 and main columns 4, 5
Is of the existing structure 15. The frame body 7 includes the upper horizontal frame member 8, the lower horizontal frame member 9, the vertical frame members 16 and 17 bridging the horizontal frame members 8 and 9 at both ends thereof, and the horizontal frame members 8 and 9. It is provided with reinforcing vertical members 18 and 19 bridging in the middle thereof, and the vertical frame members 16 and 17 and the reinforcing vertical members 18 and 19 are attached to the horizontal frame members 8 and 9 by welding or the like, The vertical frame members 16 and 17 are arranged apart from the main columns 4 and 5, respectively. The horizontal frame member 8 is fixed to the horizontal frame member 8 on the one hand and to the main beam 2 via ribs 20 welded to the main beam 2 on the other hand, and the horizontal frame member 9 is, on the one hand, Ribs 21 welded to the horizontal frame member 9 and to the main beam 3 on the other hand, respectively.
It is fixed to the main beam 3 via.

The vibration damping device 10 includes a first resistance plate means 32 having a resistance plate 31 and a first resistance plate means 32.
Side walls 34 which face the resistance plate 31 with a gap 33 and function as two resistance plates arranged with the gap 33 in between.
And a viscous body 37 disposed in the gap 33 and accommodated in the case 38, and the resistance plate 31 of the resistance plate means 32 is The flange portion 39 is connected to the horizontal frame member 8 by anchor bolts or the like, and the case 38 is connected at the flange portion 40 to the horizontal frame member 9 by anchor bolts or the like.
Are connected to the upper horizontal frame member 8 via resistance plate means 32, and to the lower horizontal frame member 9 via resistance plate means 36. In this example, the resistance plate means 32 has one resistance plate 31, and the resistance plate means 36 has two side walls 34 and 35 as resistance plates. However, the resistance plate means 32 and 36 have a plurality of resistance plates, and the resistance plate of the resistance plate means 32 and the resistance plate means 3
The resistance plate means 32 may be alternately arranged with a gap, and the resistance plate means 32 may be composed of two resistance plates and the resistance plate means 36 may be composed of one resistance plate.

The damping wall 1 described above is formed as follows. First, the existing finish material (not shown) of the structure,
Upper and lower main beams 2 and 3 and lower main columns 4 and 5, upper surface 4
Remove 1, 42 and side 43 until exposed. next,
A frame 7 having ribs 20 and 21 pre-welded to the upper and lower horizontal frame members 8 and 9 is prepared, and the frame 7 is arranged in a space 6 surrounded by the main beams 2 and 3 and the main columns 4 and 5. The ribs 20 and 21 welded to the upper and lower horizontal frame members 8 and 9 are fixed to the corresponding main beams 2 and 3 by welding, respectively. next,
The vibration damping device 10 is disposed between the upper and lower horizontal frame members 8 and 9, and the flange portion 39 is fixed to the horizontal frame member 8 and the flange portion 40 is connected to the horizontal frame member 9 by anchor bolts or the like, After that, new walls, in some cases, fireproof partition walls 11 and 12 are arranged so as to cover the vibration damping device 10 and close the space 6, thereby forming the damping wall 1.

In the damping wall 1, when the upper and lower main beams 2, 3 and the main columns 4, 5 are horizontally swung by an earthquake, the upper and lower main beams 2, 3 and the main column 4, The horizontal swing of 5 is rib 20,
21 and the frame 7, the resistance plate 31 and the case 38
To the resistance plate 31 as horizontal movements in opposite directions.
As a result of the viscous body 37 being sheared by the horizontal movement of the case 38 and the case 38 in opposite directions, viscous shear resistance is generated in the viscous body 37, which causes the upper and lower main beams 2, 3 and the main columns 4, 5, to be viscous.
The horizontal swing of is dampened.

In the above-described damping wall 1 and the method for forming the damping wall 1, since the frame body 7 having the upper and lower horizontal frame members 8 and 9 is provided, the upper and lower sides against the reaction force from the vibration damping device 10. The horizontal frame members 8 and 9 serve as a laminated beam with respect to the main beams 2 and 3, and the stress of the main beams 2 and 3 is relieved.
By adjusting the arrangement positions of 0 and 21, the stress generated in the main beams 2 and 3 can be controlled. As a result, it becomes possible to reinforce the frame 7 depending on the proof stress of the existing structure.

The vibration damping device 10 is not limited to the above, and may be the vibration damping device shown in FIGS. 3 and 4, for example. Vibration damping device 51 shown in FIGS. 3 and 4.
Includes a first rotating plate means 53 having a disc 52 and a shaft 54.
And a second rotating plate means 57 having a disk 56 which is rotatably connected to the disk 52 by means of and is arranged to face the disk 52 with a gap 55, and is arranged in the gap 55. The viscous body 58 and the center of rotation of the disks 52 and 56 (the shaft 5
4) and a pair of first links 61 and 62 rotatably connected to the disc 52 via pins 59 and 60, respectively, and point symmetry of the centers of rotation of the discs 52 and 56. The position, which is the position where the pair of links 61 and 62 are rotationally connected to the disc 52 (the location of the pins 59 and 60).
At a position rotated by 90 degrees with respect to each other, the plate 56 is rotatably connected to the disk 56 via pins 63 and 64, and at one ends 65 and 66, one ends 67 and 66 of adjacent links 61 and 62, respectively. A pair of second links 72 and 73 that are rotatably connected to 68 via pins 69 and 70 to form a four-bar linkage 71 together with the links 61 and 62.
To hold the viscous body 58 in the gap 55,
And 56, an annular seal body 74 disposed on the outer peripheral edge.

In the vibration damping device 51, one end of the upper horizontal frame member 8 is rotatably connected to the upper horizontal frame member 8 by a pin or the like, and the other end is rotatably connected to the pins 69 and 70. Via the diagonal members 81 and 82, to the lower horizontal frame member 9,
One end is rotatably connected to the lower horizontal frame member 9 by a pin or the like, and the other end is connected to the pins 69 and 70 via diagonal members 83 and 84 rotatably connected. That is, in the vibration damping device 51 of the present example, the upper horizontal frame member 8 is provided with a pair of adjacent nodes (pins 69 and 70) of the four-bar chain 71,
The lower horizontal frame member 9 is connected via another pair of adjacent nodes (pins 69 and 70) that remain in the four-bar linkage.

Even when the vibration damping device 51 is used, when the upper and lower main beams 2, 3 and the main columns 4, 5 are horizontally swung by an earthquake, the upper and lower main beams 2, 3 and The horizontal swing of the columns 4 and 5 is transmitted to the disks 52 and 56 as rotations in opposite directions via the diagonal members 81 to 84, and the viscous body 58 is sheared by the rotations of the disks 52 and 56 in opposite directions. As a result, viscous body 58 has viscous shear resistance, which causes
Horizontal swings of the lower main installation beams 2 and 3 and main installation columns 4 and 5 are damped. Therefore, the vibration damping device 51 can also obtain the same effect as the above.

Further, the vibration damping device 91 shown in FIG. 5 may be used as the vibration damping device. In FIG. 5, a vibration damping device 91 is arranged in a cylinder 92, a rod 94 penetrating the cylinder 92 and movable in the axial direction, and a rod 94 having an enlarged portion 93 in the cylinder 92, and a cylinder 92. And a fluid 95 made of lead. In the vibration damping device 91 of this example, the upper horizontal frame member 8 is attached to the lower horizontal frame member 9 via a cylinder 92 rotatably attached to a bracket 96 welded to the horizontal frame member 8. It is connected to a bracket 97 welded to the lower horizontal frame member 9 via a rod 94 rotatably attached. In the vibration damping device 91, when the upper and lower main beams 2, 3 and the main columns 4, 5 are horizontally swung by an earthquake, the upper and lower main beams 2, 3 and the main columns 4, 5 are horizontally moved. Oscillation is due to cylinder 92 and rod 9
4 is transmitted as substantially horizontal movements in opposite directions, and the fluid 95 made of lead is caused to flow by the movement of the enlarged portion 93 due to the substantially horizontal movements of the cylinder 92 and the rod 94 in opposite directions. As a result, the fluid 95 flows. Energy is consumed by this, and as a result, the upper and lower main beams 2, 3 and the main columns 4, 5,
The horizontal swing of is dampened. Therefore, the vibration damping device 91 can also obtain the same effect as the above. In this example, instead of lead, the fluid 95 may be a silicon viscoelastic material or a viscoelastic material whose main component is natural rubber or synthetic rubber.

In the vibration damping device 91, the inside of the cylinder 92 is divided into two chambers, and an enlarging portion is formed as a defining member formed by forming an orifice for communicating the two chambers with each other, and a fluid body is formed. The vibration damping device 91 may be configured as a hydraulic shock absorber by containing the oil liquid in the cylinder 92.

The vibration damping device 91 shown in FIG. 5 is a reciprocating direct acting type vibration damping device, but instead of the reciprocating direct acting type vibration damping device 91, a swing type vibration damping device as shown in FIGS. 6 and 7. 1
01 may be used. The vibration damping device 101 includes a cylinder 103 having a cylindrical inner peripheral surface 102, and a cylinder 10
3, the rotary shaft 105 having a plurality of protrusions 104 in the rotational direction and having a polygonal cross section, and a fluid 106 arranged in the cylinder 103, such as lead, and the cylinder 103. A plurality of protrusions 1 provided on the inner peripheral surface 102 of the
07 and the plurality of protrusions 1 provided on the rotating shaft 105.
04 and a bush bearing 108. Projection 1
Reference numeral 07 denotes a member having a crescent-shaped cross section, which extends in the axial direction and is attached to the inner peripheral surface 102 of the cylinder by a bolt 111. In this example, the vibration damping device 101 includes the upper horizontal frame member 8, the bracket 96, and the pair of link members 12.
The lower horizontal frame member 9 is connected to the lower lateral frame member 9 via the cylinders 103 and the bracket 97 via the rotary shafts 1 and 122 and the rotary shaft 105. The link member 121 is rotatably connected to the bracket 96 by a shaft 131 at one end, and is rotatably connected to each other by an shaft 132 at one end of a link member 122 composed of two members arranged facing each other at the other end. Each link member 122 is fixed to the rotary shaft 105 at the other end by a bolt 133. The cylinder 103 is fixed to the bracket 97 with a bolt 134.

The connection of the rotary shaft 105 to the upper horizontal frame member 8 is
In the vibration damping device 101 that is configured with the pair of link members 121 and 122 interposed, when a relative horizontal swing occurs between the upper horizontal frame member 8 and the lower horizontal frame member 9 due to an earthquake, the pair of link members Relative rotation occurs between the rotary shaft 105 and the cylinder 103 via 121 and 122, and this relative rotation causes plastic deformation of the fluid 106 made of lead. As a result, the upper and lower main beams 2, 3 and the main columns 4,
The horizontal swing of 5 will be attenuated. Therefore, the vibration damping device 101 can also obtain the same effect as the above. Also in this example, instead of lead, a silicon viscoelastic material or a viscoelastic material whose main component is natural rubber or synthetic rubber may be used for the fluid 106.

In the above example, it was explained that the site of the structure in which the existing wall is arranged is formed in the seismic reinforcing structure, but the present invention is not limited to this, and the point is that it is a newly constructed or existing structure. In the object, it may be a space surrounded by the upper and lower main beams and main columns.

[0027]

As described above, according to the present invention, a new or existing large to small structure can be easily damped or seismic-resistant, and the seismic performance of the structure can be easily improved. Can be made. In addition, by applying the present invention to a so-called existing building that does not satisfy the current standard, it is possible to impart seismic performance higher than the current standard.

[Brief description of drawings]

FIG. 1 is a front explanatory view of a preferred embodiment of the present invention.

2 is a cross-sectional explanatory view taken along the line II-II shown in FIG.

FIG. 3 is a front explanatory view of another example of the vibration damping device that can be used in the present invention.

4 is a sectional view taken along line IV-IV shown in FIG.

FIG. 5 is a front partial explanatory view of another preferred embodiment of the present invention.

FIG. 6 is a front partial explanatory view of still another preferred embodiment of the present invention.

FIG. 7 is a side view illustrating the example shown in FIG.

[Explanation of symbols]

 1 Damping Wall 2 Upper Main Beam 3 Lower Main Beam 4, 5 Main Post 6 Space 7 Frame 8 Upper Horizontal Frame Member 9 Lower Horizontal Frame Member 10 Vibration Damper 11, 12 Walls

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuhiko Isoda 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation (72) Inventor Ikuo Shimoda 8 Kirihara-cho, Fujisawa-shi, Kanagawa OILES CORPORATION Fujisawa Plant

Claims (23)

[Claims] 1. An upper and lower horizontal frame member is arranged in a space surrounded by upper and lower main beams and main columns, and the upper and lower horizontal frame members are respectively fixed to corresponding main beams. A method for forming an earthquake-proof reinforcing structure having a vibration damping function, characterized in that the upper and lower horizontal frame members are connected via a vibration damping device. 2. A first resistance plate means, a second resistance plate means arranged to face the first resistance plate means with a gap, and a viscous body arranged in the gap. 2. The vibration damping function according to claim 1, wherein the vibration damping device is connected to the upper horizontal frame member via first resistance plate means and to the lower horizontal frame member via second resistance plate means. A method for forming a seismic strengthening structure. 3. A first rotating plate means, a second rotating plate means facing the first rotating plate means with a gap and rotatably arranged, and a viscous body arranged in the gap. And a pair of first links rotatably connected to the first rotary plate means at the point-symmetrical positions of the rotation centers of the first and second rotary plate means, and the first and second rotary plates. It is a point-symmetrical position with respect to the rotation center of the means, and is rotated by 90 degrees with respect to the rotational coupling position of the pair of first links to the first rotation plate means, and is rotated to the second rotation plate means respectively. And a pair of second links that are movably connected and that are connected at one end to respective one ends of the adjacent first links to form a four-bar linkage with the pair of first links. The vibration damping device, the upper horizontal frame member, through a set of adjacent nodes of the four-bar chain, the lower horizontal frame member The method for forming a seismic reinforced structural body having a vibration damping function according to claim 1, wherein the four columns are connected to each other via another pair of adjacent nodes. 4. A vibration damping device comprising a cylinder, a rod movably arranged in the cylinder in the axial direction and having an enlarged portion in the cylinder, and a fluid arranged in the cylinder. The seismic resistance provided with a vibration damping function according to claim 1, wherein the upper horizontal frame member is connected to the lower horizontal frame member via either the cylinder or the rod, and the lower horizontal frame member is connected to the upper horizontal frame member via the other of the cylinder and the rod. A method for forming a reinforcing structure. 5. The rod is arranged so as to pass through the cylinder, and the fluid is lead, a silicon viscoelastic material, or a viscoelastic material containing natural rubber or synthetic rubber as a main component.
A method for forming a seismic reinforced structural body having a vibration damping function according to paragraph 1. 6. The expanding part is a defining member which defines two chambers in the cylinder and has an orifice for communicating the two chambers with each other, and the fluid is an oil liquid. A method for forming a seismic strengthening structure having a vibration damping function as described above. 7. A cylinder, a rotary shaft rotatably arranged in the cylinder, a fluid arranged in the cylinder,
A vibration damping device including an inner peripheral surface of a cylinder and a protrusion provided on a rotary shaft is provided in the upper horizontal frame member via either the cylinder or the rotary shaft, and in the lower horizontal frame member by a cylinder. And one of the rotating shaft and the other of the rotating shaft.
A method for forming a seismic reinforced structural body having a vibration damping function according to paragraph 1. 8. A seismic reinforced structural body having a vibration damping function according to claim 7, wherein either one of the cylinder and the rotary shaft is connected to the upper lateral frame member by interposing a pair of link members. Method. 9. The seismic reinforced structural body having a vibration damping function according to claim 7, wherein either one of the cylinder and the rotary shaft is connected to the lower horizontal frame member by interposing a pair of link members. Method. 10. The vibration damping function according to claim 7, wherein the fluid is lead, a silicon viscoelastic material, or a viscoelastic material containing natural rubber or synthetic rubber as a main component. Method of forming seismic strengthening structure. 11. A frame body comprising, in addition to the upper and lower horizontal frame members, vertical frame members bridging the upper and lower horizontal frame members at both ends thereof, is prepared. The method for forming an earthquake-proof reinforcing structure having a vibration damping function according to any one of claims 1 to 10, wherein the frame is arranged in a space away from the frame. 12. An earthquake-proof reinforcing structure formed by the forming method according to any one of claims 1 to 11. 13. An upper horizontal frame member fixed to the upper main beam and a lower horizontal frame fixed to the lower main beam, which is arranged in a space surrounded by the upper and lower main beams and the main pillar. An earthquake-proof reinforcing structure comprising a frame body having at least members and a vibration damping device connected between upper and lower horizontal frame members. 14. A vibration damping device is provided with a first resistance plate means, a second resistance plate means arranged facing the first resistance plate means with a gap, and arranged in the gap. The viscous body is provided, and the upper horizontal frame member is connected to the lower horizontal frame member via a first resistance plate means, and the lower horizontal frame member is connected to the lower horizontal frame member via a second resistance plate means. Seismic reinforcement structure described. 15. The vibration damping device comprises: first rotary plate means, first rotary plate means facing the first rotary plate means with a gap and rotatably arranged; The arranged viscous body, a pair of first links rotatably connected to the first rotary plate means at the point-symmetrical positions of the rotation centers of the first and second rotary plate means, respectively. It is a point-symmetrical position with respect to the rotation center of the second rotary plate means, and is a position which is rotated by 90 degrees with respect to the rotational coupling position of the pair of first links to the first rotary plate means. A pair of second links that are rotatably connected to the rotating plate means and are connected at their one ends to the respective ends of the adjacent first links to form a four-bar linkage with the pair of first links. The upper horizontal frame member is provided with a link through a pair of adjacent nodes of the four-bar chain, The earthquake-proof reinforcement structure according to claim 13, which is connected to the lateral frame member via another set of adjacent nodes in which the four-bar linkage remains. 16. The vibration damping device comprises a cylinder, a rod movably arranged in the cylinder in the axial direction and having an enlarged portion in the cylinder, and a fluid arranged in the cylinder. 13. The seismic reinforcement according to claim 12, wherein the upper horizontal frame member is connected to the lower horizontal frame member via either the cylinder or the rod, and the lower horizontal frame member is connected to the lower horizontal frame member via the other of the cylinder and the rod. Structure. 17. The rod according to claim 16, wherein the rod is arranged so as to pass through the cylinder, and the fluid is lead, a silicon viscoelastic material, or a viscoelastic material containing natural rubber or synthetic rubber as a main component. Seismic reinforcement structure. 18. The expanded portion is a defining member which defines two chambers inside the cylinder, and is provided with an orifice for communicating the two chambers with each other, and the fluid is an oil liquid.
Seismic reinforcement structure described in. 19. The vibration damping device comprises a cylinder, a rotating shaft rotatably arranged in the cylinder, a fluid arranged in the cylinder, and a protrusion provided on the inner peripheral surface of the cylinder and the rotating shaft. And a lower horizontal frame member is connected to the upper horizontal frame member via either the cylinder or the rotary shaft, and the lower horizontal frame member is connected to the upper horizontal frame member via the other side of the cylinder or the rotary shaft. Item 13. The earthquake-proof reinforcing structure according to Item 13. 20. The seismic retrofit structure according to claim 19, wherein either one of the cylinder and the rotating shaft is connected to the upper horizontal frame member by interposing a pair of link members. 21. The seismic reinforcement structure according to claim 19, wherein the other one of the cylinder and the rotating shaft is connected to the lower horizontal frame member by interposing a pair of link members. 22. The seismic reinforcement structure according to claim 19, wherein the fluid is lead, a silicon viscoelastic material, or a viscoelastic material containing natural rubber or synthetic rubber as a main component. 23. The frame body comprises, in addition to the upper and lower horizontal frame members, vertical frame members bridging the upper and lower horizontal frame members at both ends thereof, and the vertical frame members are separated from the columns. The earthquake-proof reinforcement structure according to any one of claims 13 to 22, wherein the frame body is arranged in a space.