JP2930575B1 - Shock-absorbing link for seismic structure - Google Patents

Abstract

The present invention provides a shock-absorbing structure shock-absorbing link provided with an elastic connecting mechanism having a shock-absorbing function against a compressive force and a tensile force. Provided is an earthquake-resistant bearing device for a structure having a buffer function. An elastic connecting mechanism is incorporated in a middle part of a link member in a longitudinal direction, and the elastic connecting mechanism is sandwiched between end plates of a first member and a second member. One compression-force buffer rubber body 3, eight upper and lower tension-force buffer rubber bodies 4a, 4b, and upper and lower seat plates 12a, 12b, 4 abutted on the tension-force buffer rubber bodies 4a, 4b. The compression force acting on the link member 1 during an earthquake is buffered by the compressive elastic deformation of the compression force buffering rubber body 3, and the tensile force is eight in total. , 4b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates also relates to a buffer <br/> link seismic structure, seismic structure having the elastic coupling mechanism including in particular a compression-damping rubber member tensile force cushioning rubber member that provides a buffer link is also of the.

[0002]

2. Description of the Related Art For connecting various structures to a base structure, connecting structures to each other, connecting a support structure supporting a structure to the base structure, and connecting support structures to each other. Various structural link members or structural link members as members constituting the structure itself are applied.
For example, link members connecting the bridge girder to the abutment or pier, link members connecting the end of the bridge girder to the end of the bridge girder, link members reinforcing the pillar supporting the spherical tank, diagonal materials in building frames and the like. Various structural link members such as a link member as a connecting member and a link member as an axial force member of a truss structure have been applied.

Heretofore, this type of structural link member has been formed of a steel member or other metal member, and has not been configured to have a buffering function against a compressive force or a tensile force. However, connecting holes for connecting bolts and pins are formed at both ends of this type of structural link member, and are connected to the mating member via the bolts and pins. 2. Description of the Related Art Conventionally, a technique is known in which a buffer pin, which is formed by externally fixing a cylindrical rubber bush to a bolt or a pin, is inserted into and connected to a connection hole so as to obtain a buffer function against a compressive force or a tensile force. The rubber bush of the buffer pin is made of a material in which a fiber material for improving strength is embedded in a rubber elastic body. However, when a buffer pin is applied, the link member itself does not have a buffer function .

[0004]

A conventional structural link member is usually formed of a high-rigidity steel member or other metal member, and is not configured to have a buffering function against a compressive force or a tensile force. Therefore, it was not possible to realize an earthquake-resistant structure of the structure via the structural link member.
The structure in which the connecting portions of the link members are connected via the buffer pins is basically a thermal deformation (expansion or contraction) of the link members.
It is often adopted to deal with the problem or to secure the degree of freedom during assembly, and the diameter and thickness of the rubber bush are increased because it is limited by the connection hole, bolt and pin diameter. Has a limit. If the rubber bushing is enlarged, the connecting part becomes larger, the connecting part at both ends of the link member becomes larger than the width of the part other than the end part of the link member, and the practicality of the link member becomes low, and the application target is It is severely restricted.

When the cushioning pin is applied, the structure of the connecting portion of the link member is limited to a connecting structure using bolts and pins. However, in order to connect the end of the link member to the outside, the connecting portion is connected using bolts and pins. In some cases, it may be desirable to adopt a connection structure other than the structure. In addition, the buffer function of the buffer pin is not the function of the link member itself, but is the buffer function of the rubber bush of the buffer pin applied in combination with the link member .

An object of the present invention is to provide a seismic structural buffer link an elastic coupling mechanism with a buffering function with respect to compressive force and tensile force, and the like.

[0007]

According to a first aspect of the present invention, there is provided a shock-absorbing link for an earthquake-resistant structure having an elastic coupling mechanism having a buffering function against a compressive force and a tensile force at at least one portion in a longitudinal direction of the link member. Compressive and tensile forces acting on link members
Resilient connection for connecting the at least one location so as to be able to transmit
A mechanism for providing elasticity, the elastic coupling mechanism comprising: a rubber member for compressing a cushioning force; at least one set of rubber members for cushioning a tensile force arranged in series with the rubber body for compressing a cushioning force;
Connecting rod for transmitting tensile force arranged in series on a rubber body
And

Here, the link member has various cross-sectional shapes (for example, cylindrical, H-shaped, square cylindrical, U-shaped, etc.).
Can be adopted. One or more tensile force buffer rubber bodies may be provided on one side of the compressive force buffer rubber body, and one or more tensile force buffer rubber bodies may be provided on both sides of the compressive force buffer rubber body. You may. To arrange the rubber members for tensile force buffer in series with the rubber members for compressive force buffer includes to arrange the members in series with some member interposed between both rubber members. An elastic connecting mechanism may be provided at one location in the length direction of the link member, or may be provided at a plurality of locations.

When a compressive force acts on the shock-absorbing link for an earthquake-resistant structure, the compressive force is applied to a part of the link member in the longitudinal direction.
Is transmitted through an elastic connecting mechanism that connects
The compressive force acts on the rubber for cushioning the compressive force of the elastic coupling mechanism,
Compressive force cushioning rubber of the elastic coupling mechanism buffers the compressive force,
When a tensile force acts, the tensile force activates the elastic coupling mechanism.
Is transmitted through the elastic coupling mechanism.
It acts to tension the buffer rubber via imaging rod, to buffer the tension cushioning rubber member tensile force of the elastic coupling mechanism. still,
It is configured such that the tensile force buffering rubber body is compressed and deformed to buffer during a tensile force action.

According to a second aspect of the present invention, in the first aspect of the present invention, the link member includes first and second members located on both sides of an elastic coupling mechanism, and opposing the first and second members. At one end, a pair of end plates fixed at right angles to the longitudinal direction of the link member are provided, and the rubber member for compressing force is sandwiched between both end plates of the first and second members and pulled. Two sets of rubber members for force buffering are provided from opposite sides of the rubber member for compressive force buffer so as to abut against both end plates of the first and second members, respectively, and an end plate of the two sets of rubber members for tensile force buffering is provided. And two sets of seat plates are connected to the connecting rods on the opposite surfaces.
It is characterized by being connected via the In addition, one set of the rubber members for tensile force buffer may be constituted by one rubber member, or may be constituted by a plurality of rubber members.

When a compressive force acts on the link member, the compressive force acts to compress the rubber member for compressing the compression force via the first and second members and the pair of end plates. The rubber body absorbs the compressive force. When a tensile force acts on the link member, the tensile force compresses two sets of rubber members for buffering the tensile force via the first and second members, a pair of end plates, two sets of seat plates and a connecting rod. And two sets of rubber rubbers for tensile force buffer the tensile force.

According to a third aspect of the present invention, in the shock-absorbing link for an earthquake-resistant structure according to the second aspect of the present invention, the connecting rod includes a rubber member for compressing force, two end plates, two sets of rubber members for tensile force, and two sets of seats. The plate is provided so as to be inserted, and nuts are fastened to both ends of the connecting rod. That is,
The connecting rod and the nuts at both ends thereof are connected so that the two sets of seat plates are not separated from each other. This connecting rod is composed of a rubber member for cushioning the compression force, both end plates, and two rubber members for cushioning the tensile force. Since the pair of seat plates are provided so as to be inserted, the size of the elastic coupling mechanism can be reduced.

According to a fourth aspect of the present invention, there is provided the shock-absorbing link for an earthquake-resistant structure according to any one of the first to third aspects, wherein the elastic connecting mechanism is provided at a plurality of locations along the length of the link member. It is a feature. In this case, the compression force buffering function and the tensile force buffering function can be remarkably enhanced, or the size of each elastic connection mechanism can be reduced.

In the case where the rubber member for compressive force buffer and the rubber member for tensile force buffer are made of a highly damping rubber material (claim 5), the energy absorbing performance of those rubber members is enhanced to enhance the buffer function. can do. In the case where the rubber member for compressing force is constituted by a laminated rubber in which a plurality of rubber plates and metal plates are alternately laminated (claim 6), the compression elastic modulus of the rubber member for compressing force is increased. Therefore, it is difficult to deform by compression. Further, when the rubber member for tensile force buffer is composed of a laminated rubber in which a plurality of rubber plates and metal plates are alternately laminated, the compression elastic coefficient of the rubber member for tensile force buffer is increased. Therefore, it is difficult to be deformed by tensile force .

[0015]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS.
The shock-absorbing link L for an earthquake-resistant structure according to the present invention has an elastic connecting mechanism 2 having a buffering function against a compressive force and a tensile force at at least one portion in the longitudinal direction of the link member 1. , A compression-force buffer rubber body 3 and two sets of tensile-force buffer rubber bodies 4A and 4B arranged in series on the upper and lower sides of the compression force buffer rubber body 3. 1 is a front view of a shock-absorbing link for an earthquake-resistant structure, FIG. 2 is a longitudinal side view of the shock-absorbing link for an earthquake-resistant structure, FIG.
FIG. 4 is a sectional view taken along line IV-IV of FIG.

The link member 1 has symmetrical first and second members 1a and 1b located on both sides of the elastic connecting mechanism 2, and a long end of the link member 1 at an opposite end of the first and second members 1a and 1b. And a pair of end plates 5a and 5b which are respectively fixed in a direction perpendicular to the direction of the vertical direction. The first member 1a includes a main body plate 6a, a reinforcement / deformation restricting plate 7a which is welded to a lower portion of both left and right ends of the main body plate 6a in a manner orthogonal to the main body plate 6a, and a lower portion of a central portion of the main body plate 6a in the left-right direction. And a reinforcing and deformation restricting plate 8a welded orthogonally to the main body plate 6a, and a connecting portion 9a on an upper portion of the main body plate 6a.
Is formed with a connection hole 10a for connecting a bolt or a pin, and the connection portion 9a is reinforced by a pair of front and rear reinforcing plates 11a.

The second member 1b includes a main body plate 6b, a reinforcing / deformation restricting plate 7b which is welded to the upper part of the left and right ends of the main body plate 6b in a manner orthogonal to the main body plate 6b, and a center in the left and right direction of the main body plate 6b. The upper part has a main body plate 6b and a reinforcing and deformation regulating plate 8b welded orthogonally to the main body plate 6b.
A connection hole 10b for connecting a bolt or a pin is formed in b, and this connection portion 9b is reinforced by a pair of front and rear reinforcing plates 11b.

The elastic coupling mechanism 2 includes one rubber member 3 for cushioning compressive force and a pair of upper rubber members 4A for cushioning tensile force.
And a pair of lower rubber members 4B for cushioning tensile force, four upper seat plates 12a and four lower seat plates 12b, four connecting rods 13, and a screw on both ends of the connecting rods 13. It is composed of the combined nut 14 and washer 15. The rubber member 3 for cushioning the compression force is made of, for example, a rectangular parallelepiped made of high-damping rubber.
The rubber body 3 for buffering the compressive force comprises first and second members 1a and 1b.
Are sandwiched between the end plates 5a and 5b at the ends without bonding.

The upper pair of rubber members 4A for buffering the tensile force
Consists number of pull tension cushioning rubber member 4a, the tensile force cushioning rubber member 4a is, for example, a rectangular parallelepiped high damping rubber,
These four rubber members 4a are placed in contact with the upper surface of the end plate 5a at the lower end of the first member 1a. It is arranged between the plates 7a, 8a. Incidentally, on the outside of three sides of the pull tension cushioning rubber member 4a, a gap 16 of the order of about 10mm as deformation allowance of the rubber body is formed.

The pair of lower rubber members 4B for tensile force buffer are 4
Consists number of pull tension cushioning rubber member 4b, the tensile force cushioning rubber member 4b is made of, for example, cuboid high damping rubber,
The four rubber members 4b are arranged in contact with the lower surface of the end plate 5b at the upper end of the second member 1b. 7
b, 8b. A gap 16 of about 10 mm is formed outside the three side surfaces of each tensile force buffering rubber body 4b as a deformation allowance of the rubber body.

An upper seat plate 12a larger than the rubber body is placed on the upper surface of each upper rubber member 4a for tension buffering, and the lower surface of each rubber member 4b for lowering tension force is mounted on the lower surface of each rubber member 4b. A large lower seat plate 12b is arranged in contact. There are provided four connecting rods 13 for connecting the upper and lower seat plates 12a and the lower seat plate 12b corresponding to the upper and lower parts so as to transmit the tensile force, and each of the connecting rods 13 has a hole at the center of the upper seat plate 12a. A hole in the center of the upper rubber member 4a for tensile force buffer;
The hole of the pair of end plates 5a and 5b, the hole of the rubber member 3 for cushioning the compression force, the hole at the center of the lower rubber member 4b for cushioning the tensile force, and the hole at the center of the lower seat plate 12b. The connecting rod 13 is vertically inserted, and a washer 15 and a nut 14 are screwed to the upper end of each connecting rod 13 so as to be in contact with the upper surface of the upper seat plate 12a. washer 15 and nut 14 so as to contact is screwed to the lower surface of the lower seat plate 12b, each
The connecting rod 13 is opposed to the upper and lower tensile force transmitting rubber members 4a.
And are arranged in series.

The operation of the above-described shock-absorbing structure buffer link L will be described. This shock-absorbing link L for earthquake-resistant structure
The present invention is applied to a structural link for connecting structures, a structural link for connecting a structure and a substructure, a structural link as a structural member for connecting internal structural members of a structure, and the like. The upper connecting portion of the shock-absorbing structural shock link L is connected to an external structural member via a bolt or a pin, and the lower connecting portion is connected to an external structural member different from the external structural member by using a bolt or a pin. It is used in a state of being linked through

When a compressive force acts on the link member 1 when an earthquake occurs, the compressive force is applied from the first and second members 1a and 1b to the compressive force buffering rubber body 3 via a pair of end plates 5a and 5b. As a result, the rubber body 3 for cushioning the compression force elastically deforms in the compression direction to buffer the compression force, and the rubber body 3 for cushioning the compression force is restored at the end of the earthquake. When the rubber member 3 for cushioning the compression force is not bonded to the upper and lower end plates 5a and 5b as described above, the elastic deformation thereof is only hindered by the four connecting rods 13 to some extent. Is relatively small. However, the compression elastic modulus of the rubber cushion 3 is appropriately set according to the function of the shock-absorbing link L for the seismic structure. 3 may be bonded to the upper and lower end plates 5a, 5b.

On the other hand, since the upper seat plate 12a and the lower seat plate 12b corresponding to the upper and lower sides are connected by the connecting rod 13 and the nut 14, when a tensile force acts on the link member 1 at the time of an earthquake, the compression force buffering is performed. A gap is generated between the rubber body 3 for use and the end plates 5a and 5b, and two sets (eight in total) of the upper and lower tensile force buffering rubber bodies 4a and 4b are elastically deformed in the compression direction to buffer the tensile force. At the end of the earthquake, the compressive rubber cushion 3 and the tensile rubber cushions 4a and 4b are restored. However, in the case where the rubber member 3 for cushioning the compression force is bonded to the pair of end plates 5a and 5b,
When a tensile force acts, the compressive force buffering rubber body 3 is deformed in the tensile direction, and the tensile force buffering rubber bodies 4a and 4b are elastically deformed in the compression direction.

The compression elastic modulus of each of the tensile force buffer rubber members 4a and 4b is appropriately set in accordance with the function of the shock-absorbing structure buffer link L. Corresponding end plates 5a, 5b and upper and lower seat plates 12a,
If it does not adhere to 12b, its modulus of elasticity is relatively small. However, each of the rubber members 4a and 4b
There is only a gap 16 of about 10 mm on the outside of the side surface, and the elastic deformation to the outside is restricted further. Therefore, after the elastic deformation is restricted, the elastic coefficient of each of the rubber members 4a, 4b for tensile force buffer greatly changes. I do. As described above, the shock-absorbing link L for the earthquake-resistant structure exhibits a shock-absorbing function against both the compressive force and the tensile force due to the earthquake and provides the earthquake-resistant structure.

In order to obtain the cushioning function of the elastic connecting mechanism 2 by the rubber member 3 for buffering the compressive force and the rubber members 4a and 4b for buffering the tensile force, the structure of the elastic connecting mechanism 2 can be simplified and the size can be reduced.
It is also advantageous in terms of manufacturing cost. Since the degree of freedom in setting the elastic characteristics of the rubber members 3 for compressing force and the rubber members 4a and 4b for buffering tensile force is large, and since the elastic coupling mechanism 2 can be provided at a plurality of locations, the degree of freedom in design is increased. Is also big. Since the elastic connecting mechanism 2 is provided at an intermediate portion in the longitudinal direction of the link member 1, the structure of the connecting portions 9a and 9b at both ends of the link member 1 is not restricted at all. For example, the connection holes 10a and 10b of the connection portions 9a and 9b may be omitted, and the connection portions 9a and 9b may be configured to be connected to an external structural member by welding or a plurality of bolts.

Since the tensile force buffer rubber members 4a and 4b are provided symmetrically on both the upper and lower sides of the compressive force buffer rubber member 3, the tensile force buffering performance can be enhanced, and the symmetry of the tensile force buffer can be ensured. In addition, the size of the rubber members 4a and 4b for buffering the tensile force of each set can be reduced. The connecting rod 13 for connecting the upper seat plate 12a and the lower seat plate 12b so as not to move to the separated side is connected to the rubber member 3 for cushioning the compression force, the end plates 5a, 5b, and the pair of rubber members 4a for cushioning the tensile force. 4b, the upper seat plate 12a, and the lower seat plate 12b are provided so as to be inserted therethrough.
Can be reduced in size.

Next, a description will be given of a modification in which the shock-absorbing link L for the earthquake-resistant structure of the embodiment is partially changed. However, the same reference numerals are given to the same components as described above, and the description will be omitted. 1) The rubber body 3 for buffering the compressive force may be made of natural rubber or various synthetic rubbers (for example, chloroprene rubber, urethane rubber, silicon rubber, etc.) in addition to the high damping rubber. However, elastic characteristics such as the elastic coefficient of the rubber member 3 for cushioning the compression force and the rubber members 4a and 4b for cushioning the tensile force are appropriately set according to the use and function of the shock-absorbing link L for the earthquake-resistant structure.

In order to increase the compressive strength of the rubber body 3 for compressing the compression force or to increase the elastic modulus, the rubber body 3 for cushioning the compression force is formed by alternately laminating a plurality of layers of a rubber plate and a metal plate. It may be made of laminated rubber. The same applies to the rubber members 4a and 4b for buffering the tensile force.
The rubber members 4a and 4b for buffering the tensile force may be made of laminated rubber in which a plurality of rubber plates and metal plates are alternately laminated.

2) Each set of rubber members 4A for buffering tensile force,
Since 4B has a function of buffering the tensile force, the upper pair of rubber members 4A for buffering the tensile force or the lower pair of rubber members 4B for buffering the tensile force may be omitted. The end of the connecting rod 13 may be connected to the end plates 5a and 5b by abutment of a nut on the side where the rubber member for tensile force buffer is omitted.

3) The elastic connecting mechanism 2 may be provided at a plurality of locations along the length of the link member 1 in the longitudinal direction.
In this case, the degree of freedom for setting the elastic modulus of compression and tension of the plurality of elastic connection mechanisms 2 can be increased, and the size of each elastic connection mechanism 2 can be reduced, and the link member 1 can be formed thin. it can.

For example, in the shock-absorbing link LA for an earthquake-resistant structure shown in FIG.
An elastic connection mechanism 2 similar to the above is incorporated at a location.
The link member 1A includes a first member 1a, a member 1c as a second member for the first member 1a,
c, a member 1d as a first member, and the member 1d
And the second member 1b. In addition, if necessary, one elastic connecting mechanism 2 at the center in the longitudinal direction is omitted and the member 1 is omitted.
c and the member 1d may be configured as an integral member. Further, four or more elastic connecting mechanisms 2 may be incorporated in the link member.

4] The structure and shape of the link member 1 in the shock-absorbing structural shock absorbing link L, the number and shape of the compression force damping rubber members 3, and the number and shape of the tensile force damping rubber members 4a and 4b are as described in the above embodiment. However, the present invention is not limited to this, and can be set as appropriate within a range in which the desired function can be achieved. For example,
In the shock-absorbing structure link LB shown in FIGS. 6 and 7, the first and second members 21a and 21b are mainly composed of a pipe material, and end plates are provided at opposite ends of the first and second members 21a and 21b. 25a and 25b are welded, and the elastic coupling mechanism 2B
Rubber members 23 for cushioning compression force, two rubber bodies 24a and 24b for cushioning tensile force, upper and lower seat plates 26a and 26b,
It has a connecting rod 27 and the like.

The shock-absorbing link L shown in FIGS. 8 and 9
In C, the first and second members 41a, 41b are mainly composed of H-shaped steel, and the first and second members 41a, 41b
End plates 42a and 42b are welded to the opposite ends of the elastic member. The elastic connecting mechanism 2C includes one compressive force buffering rubber member 43, a total of four tensile force buffering rubber members 44a and 44b, and a total of four upper and lower members. It has a plurality of seat plates 45a and 45b and four connecting rods 46. Further, the connecting portion 47 of the first and second members 41a and 41b.
Each of a and 47b has a plurality of bolt holes 48, and is connected to an external member via a plurality of bolts. However, it may be configured as a connecting portion similar to the connecting portions 9a and 9b.

5] Supplementary explanation of the uses of the shock-absorbing structural shock absorbing links L to LC will be given. As shown in FIG. 10, an end of a truss-structured bridge girder 50 is supported on a pier 52 via a pin / roller bearing device 51, and the end of the bridge girder 50 has one or more shock-absorbing links L for seismic structure. And the shock-absorbing link L for the earthquake-resistant structure is disposed in an inclined posture inclined about 45 degrees from the horizontal posture.

As shown in FIG. 11, a bridge girder 5 having a truss structure is used.
0 is connected to the pier 5 via the pin roller bearing 51.
2 and the other end of the bridge girder 53 of the box girder structure is supported on the pier 52 via a pin roller bearing device 54, and the end of the bridge girder 50 and the end of the bridge girder 53
Alternatively, they are connected via a plurality of shock-absorbing links L for earthquake-resistant structures. The right end of the buffer link L is connected to the center of the long hole 56 of the bracket 55 at the end of the bridge girder 53 by a pin.
Therefore, the horizontal displacement due to the traffic load acting on the bridge girder 53 and the horizontal displacement due to the thermal expansion and thermal contraction of the bridge girder 50, 53 are absorbed by the elongated holes 56, and the rotational displacement and the vertical displacement caused by the traffic load acting on the bridge girder 53. Is absorbed by the elastic connecting mechanism 2 of the shock-absorbing link L for the earthquake-resistant structure. A cushioning function is obtained for a compressive force or a tensile force acting on the elastic coupling mechanism 2 during an earthquake.

As shown in FIG. 12, a trussed bridge girder 5
0 is connected to the pier 5 via the pin roller bearing 51.
2 and the other end of the bridge girder 53 of the box girder structure is supported on the pier 52 via a pin roller bearing device 54, and the end of the bridge girder 50 and the end of the bridge girder 53 are
Alternatively, they are connected via a plurality of shock-absorbing links L for earthquake-resistant structures. The left end of the buffer link L is pin-connected to the right end of a long hole 57 at the end of the bridge girder 50, and the right end of the buffer link L is connected to the left end of the long hole 56 of the bracket 55 at the end of the bridge girder 53. Are linked. The horizontal displacement and the vertical displacement in the normal use state are absorbed by the elastic coupling mechanism 2 between the elongated holes 56 and 57 and the buffer link L. Although the compressive force is set to be hard to act on the elastic connecting mechanism 2, a cushioning function can be obtained with respect to the compressive force and the tensile force acting on the elastic connecting mechanism 2 during an earthquake.

As shown in FIG. 13, a spherical tank 60 is supported by a plurality of columns 61, and a brace 62 is provided between the columns 61 in an X-shape.
The upper part of the support column 61 is connected to the foundation structure 63 and reinforced. FIG. 14 shows a pair of braces 62A (referred to as X-shaped braces) arranged in an X-shape. The X-braces 62A (corresponding to shock-absorbing links for seismic structure) are made of H-shaped steel. Four arms 64 of the same cross-sectional shape
And a central X-shaped member 65 formed by integrally joining the two, and four brace members 66 each made of H-shaped steel.
4 and the corresponding brace member 66 are connected via an elastic connecting mechanism 2D similar to the elastic connecting mechanism 2C of the shock-absorbing structure shock absorbing link LC shown in FIG. In this way, by reinforcing each pair of columns 61 with the X-shaped brace 62A, it is possible to provide a spherical tank support structure having an earthquake-resistant structure.

As shown in FIG. 15, the shock-absorbing structural link LA shown in FIG. 5 is applied to a brace 71 of a steel frame building frame 70. As shown in the drawing, a structure incorporating the brace 71 made of the shock-absorbing structure buffer link LA can be used as a building frame having an earthquake-resistant structure. However, it is desirable to incorporate the same brace into a structure orthogonal to the paper surface in addition to the structure surface parallel to the paper surface of FIG. Note that instead of each brace 71, an X-shaped brace similar to the X-shaped brace 62A shown in FIG. 14 may be provided .

[0040]

According to the buffer linked seismic structure of claim 1 according to the present invention, when a compressive force to the link member acts, the compressive force
Elastic connecting mechanism that connects the middle part in the length direction of the link member
And the compression force is transmitted by the elastic coupling mechanism.
Since it acts on the rubber for cushioning, the compressive force can be buffered by the rubber body for compressing the elastic force of the elastic coupling mechanism. When a tensile force acts on the link member, the tensile force is applied to the elastic coupling machine.
Transmitted through the frame and the tensile force
Since it acts on the rubber for buffering the tensile force via the rod, the tensile force can be buffered by the rubber member for buffering the tensile force of the elastic connection mechanism. Since the shock-absorbing link for seismic structure is applicable to achieve the seismic structure of various structures, it is excellent in versatility.

Since the elastic coupling mechanism has a cushioning function with the rubber member for compressing the tension and the rubber member for cushioning the tensile force, the structure of the elastic coupling mechanism can be simplified, the size can be reduced, and the manufacturing cost is advantageous. . The degree of freedom in setting the elastic characteristics of the rubber body for compressive force buffering and the rubber body for tensile force buffering is large, and since a plurality of elastic coupling mechanisms can be provided, the degree of freedom in design is also large. Since the elastic connecting mechanism is provided at an intermediate portion in the length direction of the link member, the connecting structure of the connecting portions at both ends of the link member is not restricted at all.

According to the second aspect of the present invention, when a compressive force is applied to the link member, the first and second members are compressed through the pair of end plates to compress the rubber member for compressing the compressive force, thereby reducing the compressive force. When the tensile force acts on the link member, two sets of the first and second members, a pair of end plates, two sets of seat plates, and the connecting rod can be used. The tensile force buffer rubber body is compressed, and the tensile force can be buffered by the two sets of tensile force buffer rubber bodies. Since the rubber body for tension buffer is provided symmetrically on both sides of the rubber body for compression buffer, the tension buffer performance can be enhanced, the symmetry of the tension buffer can be secured, The size of the rubber body can be reduced. The other effects are the same as those of the first aspect.

According to the third aspect of the present invention, the connecting rods for connecting the two sets of seat plates so as not to be separated from each other are composed of the rubber members for cushioning the compression force, the two end plates, and the two rubber members for cushioning the tensile force. Since the seat plate is provided in a state of being inserted, the size of the elastic coupling mechanism can be reduced. Other effects are the same as those of the second aspect.

According to the fourth aspect of the present invention, since the elastic connecting mechanism is provided at a plurality of positions in the length direction of the link member, the compressive force buffering function and the tensile force buffering function are remarkably enhanced, or individual elastic connecting mechanisms are provided. The size of the mechanism can be reduced. In addition, the same effect as any one of the first to third aspects is obtained.

According to the fifth aspect of the present invention, since the rubber member for compressive force buffering and the rubber member for tensile force buffering are made of a high damping rubber material, the energy absorbing performance of these rubber members is enhanced.
The buffer function can be enhanced. Other claims 1-4
The same effect as any one of the above items is obtained.

According to the sixth aspect of the present invention, since the rubber member for compressing force is composed of a laminated rubber in which a plurality of rubber plates and metal plates are alternately laminated, the compression elastic modulus of the rubber member for compressing force is reduced. By increasing the size, it is possible to make it difficult to compressively deform. In addition, the same effects as in any one of the first to fourth aspects are exhibited.

According to the seventh aspect of the invention, since the rubber member for tensile force buffer is composed of a laminated rubber in which a plurality of rubber plates and metal plates are alternately laminated, the compression elastic modulus of the rubber member for tensile force buffer is reduced. It can be made large so that it is not easily deformed by a tensile force. The other effects are the same as those of the sixth aspect .

[Brief description of the drawings]

FIG. 1 is a front view of a shock-absorbing structure shock absorbing link according to an embodiment of the present invention.

FIG. 2 is a vertical sectional side view of a shock-absorbing link for an earthquake-resistant structure.

FIG. 3 is a side view of a shock-absorbing link for an earthquake-resistant structure.

FIG. 4 is a sectional view taken along line IV-IV of FIG. 1;

FIG. 5 is a front view of a modified shock-absorbing link for an earthquake-resistant structure.

FIG. 6 is a longitudinal sectional front view of a shock-absorbing link for a seismic structure of a modified embodiment.

FIG. 7 is a sectional view taken along the line VII-VII in FIG. 6;

FIG. 8 is a front view of a shock-absorbing link for an earthquake-resistant structure according to a modified embodiment.

9 is a sectional view taken along line IX-IX of FIG.

FIG. 10 is a diagram showing an application example of a shock-absorbing link for an earthquake-resistant structure.

FIG. 11 is a diagram illustrating an application example of a shock-absorbing link for an earthquake-resistant structure.

FIG. 12 is a diagram illustrating an application example of a shock-absorbing link for an earthquake-resistant structure.

FIG. 13 is a diagram showing an example in which a shock-absorbing link for an earthquake-resistant structure is applied to a spherical tank.

FIG. 14 is a front view of the X-shaped brace of FIG.

FIG. 15 is a diagram illustrating an example in which a shock-absorbing link for an earthquake-resistant structure is applied to a building steel frame .

[Explanation of symbols]

L, LA, LB, LC Absorbing links for seismic structure 1a, 1b First and second members 1c, 1d members 2, 2B, 2C, 2D Elastic coupling mechanism 3 Rubber members for compressive force buffer 4a, 4b Rubber for tensile force buffer Body 5a, 5b End plate 12a, 12b Upper seat plate, lower seat plate 13 Connecting rods 21a, 21b First and second members 23 Rubber bodies for compressive force buffering 24a, 24b Rubber bodies for tensile force buffering 25a, 25b End plate 26a, 26b Upper seat plate, lower seat plate 27 Connecting rods 41a, 41b First and second members 42a, 42b End plate 43 Compressive force buffer rubber members 44a, 44b Tensile force buffer rubber members 45a, 45b Upper seat plate, lower seat plate 46 the connecting rod 62A X-shaped braces

Continuation of the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) F16F 1/00-6/00 F16F 15/00-15/32 E01D 19/04 E04H 9/02

Claims (7)

(57) [Claims] An elastic coupling mechanism having a buffering function against a compressive force and a tensile force at at least one position in the longitudinal direction of the link member, the compressive force and the tensile force acting on the link member being provided.
An elastic link for connecting the at least one point so as to transmit a force
The binding mechanism is provided, the elastic coupling mechanism comprises a compression buffer rubber body, and at least one pair of tension cushioning rubber member are arranged in series in the compression buffer rubber member, the tension buffer
Connecting rods for transmitting tensile force
Seismic structure buffer link, characterized in that it comprises a de. 2. The link member is fixed to first and second members located on both sides of an elastic coupling mechanism and opposite ends of the first and second members, respectively, in a direction perpendicular to the length direction of the link member. And a pair of end plates, wherein the rubber member for compressing force is sandwiched between both end plates of the first and second members, and the rubber member for cushioning tensile force is from the side opposite to the rubber member for compressing force. Two sets are provided so as to be in contact with both end plates of the first and second members, respectively, and seat plates are provided which are in contact with surfaces of the two sets of tensile force buffering rubber members opposite to the end plate. In front of a pair of seats
The shock-absorbing link for an earthquake-resistant structure according to claim 1, wherein the shock-absorbing link is connected via the connecting rod . 3. The connecting rod is provided so as to pass through a rubber member for compressing force, both end plates, two sets of rubber members for tensile force and two sets of seat plates, and nuts are provided at both ends of the connecting rod. The shock-absorbing link for an earthquake-resistant structure according to claim 2, wherein the shock-absorbing link is fastened to each other. 4. The shock-absorbing link for an earthquake-resistant structure according to claim 1, wherein the elastic connecting mechanism is provided at a plurality of positions in the middle of the link member in the longitudinal direction. 5. The earthquake-resistant structure according to claim 1, wherein the rubber member for compressing and the rubber member for tensile force are made of a high-damping rubber material. Buffer link. 6. The method according to claim 1, wherein the rubber body for cushioning the compressive force is formed of a laminated rubber in which a plurality of rubber plates and metal plates are alternately laminated. Shock link for seismic structure. 7. The shock-absorbing link according to claim 6, wherein the rubber member for tensile force buffering is formed of a laminated rubber in which a plurality of rubber plates and metal plates are alternately laminated .