JP6718676B2 - Seismic control stud structure - Google Patents

Description

TECHNICAL FIELD The present invention relates to a seismic control stud structure provided between skeletons of upper and lower floors.

As a seismic control stud provided in a beam-frame structure, a seismic control stud that absorbs energy by plastically deforming when a horizontal force is applied and suppresses the influence on other structures is known.
On the other hand, in the seismic control stud, when a high compressive axial force or a tensile axial force at the time of earthquake is applied, the vibration suppressing effect is reduced and the buckling may occur.
Therefore, seismic isolation studs that do not bear axial force have been developed.
For example, the present applicant has disclosed a damping stud made of a steel member that is plasticized when a predetermined horizontal load is applied (see, for example, Patent Document 1 or Patent Document 2). In this seismic isolation stud, there is a discontinuous part with a gap between the upper bracket that is hung from the beam on the upper floor and the lower bracket that is erected on the beam on the lower floor. Movement in the horizontal direction is restricted by a restriction member that surrounds the part. The restraint member is fixed to the lower bracket.

Japanese Patent No. 4678098 JP, 2003-129690, A

In the conventional seismic control stud, a lower bracket larger than the outer diameter dimension of the upper bracket is arranged so as to cover the flange or the web of the steel member constituting the upper bracket, and a plurality of steel materials (constraints) are provided on the upper surface of the lower bracket. The lower bracket tends to be large because it is necessary to arrange the members). Larger bottom brackets can affect the available space in the building. Moreover, since a plurality of steel materials (constraining members) are arranged, high accuracy control is required during construction.
Also, in conventional seismic isolation studs, a plate-shaped ultra-low yield point steel without rib material is joined to the web part of the steel member that constitutes the upper bracket or the lower bracket, and the ultra-low yield point steel is plasticized. By doing so, the seismic energy was absorbed. Therefore, when a large deformation occurs in the ultra low yield point steel due to a large earthquake, the deformation is concentrated in a part of the ultra low yield point steel, and the original damping effect of the ultra low yield point steel cannot be exhibited. As it was, there was a fear of locally plasticizing. Therefore, it is difficult and difficult to design the conventional seismic control studs against seismic energy. Further, in the conventional seismic control stud, since the ultra low yield point steel is incorporated in the steel member, it is difficult to replace the plasticized ultra low yield point steel.
Therefore, the present invention proposes a seismic control stud structure that does not affect the living space and can be easily constructed, and that exhibits a high seismic control effect without transmitting axial force. This is an issue.

The present inventors have provided a horizontal slit in the middle part of the stud as an anti-vibration stud structure provided in a beam-column structure so that no axial force is applied to the anti-vibration stud, and an upper-side vertical member sandwiching the horizontal slit. By forming pressure bearing plates respectively on the lower vertical members and horizontally engaging the ends of these pressure bearing plates with each other, a vertical member is formed without causing buckling of the vibration control studs. The invention has led to the invention of a seismic control stud structure with a high seismic control effect in which the yield strength and rigidity of absorbing seismic energy by a low yield point steel material can be easily adjusted.

In order to solve the above problems, the present invention provides an upper connecting member connected to an upper beam in a column/beam frame, a lower connecting member connected to a lower beam in the column/beam frame, and the upper part. The energy absorbing member provided on the connecting member or the lower connecting member, the pair of first pressure supporting members protruding downward from the lower end surface of the upper connecting member, and the lower part between the first pressure supporting members. A damping stud structure including a second bearing member protruding upward from the upper end surface of the connecting member, wherein the upper connecting member is a steel material having an H shape in cross section and including a web and a pair of flanges. The first pressure bearing member is in contact with the inner side surfaces of the flanges facing each other, the first pressure bearing member and the second pressure bearing member, the first pressure bearing member and the lower connecting member. Gaps are formed between the upper end surface of the first support member and the lower end surface of the upper coupling member, and the first support member and the second support member are horizontally arranged. It is characterized by exerting a damping effect by engaging them.
According to such a seismic control stud structure, since axial force is not transmitted due to the horizontal gap, it is possible to prevent buckling of each connecting member even when a large axial force is generated in the beam-column structure. .. Further, by providing the horizontal slits between the upper and lower connecting members, the structural safety can be ensured because the deformation or the stress generated in the out-of-plane direction of the beam structure is not restrained and the stress is not transmitted. Specifically, when a horizontal force is applied to the beam structure, the first pressure support member and the second pressure support member are engaged in the horizontal direction, so that the energy absorbing member arranged in advance is placed. Since the horizontal force is transmitted to, the seismic energy is efficiently absorbed. Further, since the first pressure support member and the second pressure support member are installed between the flanges forming the upper connection member or the lower connection member, it is possible to prevent the members from increasing in size.

The energy absorbing member is made of a low-yield-point steel plate, and the low-yield-point steel plate is additionally provided with stiffening members in the vertical and horizontal directions, so that even if a large horizontal force is applied, local The shear deformation is not concentrated in the area, and the shear deformation is generated almost uniformly and the seismic energy can be absorbed. Further, the energy absorbing member has a plurality of longitudinal stiffeners vertically on one surface is additionally provided, the one transverse stiffener sideways at the intersection with the Tateho Tsuyoshizai on the other surface By being attached, the main steel frame steel material forming the upper connecting member or the lower connecting member and the energy absorbing member can be easily and highly accurately joined.
Further, when performing maintenance for a long period of time, on the side surface of the first pressure support member on the second pressure support member side and the side surface of the second pressure support member on the first pressure support member side, A friction reducing material is applied, the upper connecting member is joined by bolting the upper member and the lower member, and the energy absorbing member is installed on the lower member. By replacing only the lower member provided with the energy absorbing member without removing the respective upper member, the seismic control stud structure at the time of installation can be maintained.

ADVANTAGE OF THE INVENTION According to the damping stud structure of the present invention, a damping stud that has a high damping effect that does not affect the living space and can be easily constructed and that does not transmit axial force It becomes possible to construct a structure having a structure.

It is a front view showing a seismic control stud structure according to the first embodiment. It is a partially expanded view of FIG. 2A is a sectional view taken along the line AA in FIG. 2, and FIG. 3B is a partially enlarged view of a first pressure bearing member and a second pressure bearing member. It is a front view which shows the vibration control stud structure which concerns on 2nd embodiment. It is a front view which shows the seismic-control stud structure which concerns on 3rd embodiment.

The present invention relates to a seismic control stud structure provided in a column-beam structure, which suppresses the influence on other structures by absorbing seismic energy by plastically deforming when a horizontal force is applied. In addition, by providing a horizontal slit in the middle part of the stud, and by vertically engaging the vertical members sandwiching the horizontal slit in the horizontal direction, it is possible to obtain a high vibration damping effect in which axial force is not transmitted. The seismic control stud structure was realized.
Specifically, the present invention has a horizontal slit provided between an upper connecting member and a lower connecting member, and a damping stud structure including a low yield point steel material in the upper connecting member (first embodiment). And the upper connecting member is composed of an upper member joined to the beam of the floor and a lower member having a low yield point steel material, and the upper member and the lower member are integrated by a flange and a joint plate that straddles the webs. A seismic strut structure (second embodiment), an upper connecting member is composed of upper and lower members as in the second embodiment, and an upper member and a lower member are joined by connecting plates arranged vertically. It is embodied in a seismic strut structure (third embodiment). Hereinafter, the configuration of each embodiment and its function and effect will be described.

<First embodiment>
The present embodiment constitutes the essence of the present invention, and is a vibration control stud structure in which a pressure bearing plate is provided on the material end surface of each connecting member and an energy absorbing member is provided in the upper connecting member.
As shown in FIG. 1, the vibration control stud structure 1 of the first embodiment includes an upper connecting member 2, a lower connecting member 3, an energy absorbing member 4, a first bearing member 5 and a second bearing member 6. ing.
The upper connecting member 2 and the lower connecting member 3 are coaxially arranged in the column-beam frame structure 7. In the present embodiment, in the rectangular inner space of the column-beam structure 7, the vibration-damping stud structure 1 is formed in the longitudinal middle portion of the upper and lower beams 71, 72. The location of the seismic control stud structure 1 is not limited.
As shown in FIG. 2, a gap S (horizontal slit) is formed between the lower end of the upper connecting member 2 and the upper end of the lower connecting member 3.
Here, in the present embodiment, a case will be described in which the seismic control stud structure 1 is installed on the beam-column structure 7 made of a concrete member. The column-beam frame structure 7 is not limited to a concrete structure, and may be a steel structure, for example.

As shown in FIG. 1, the upper end of the upper connecting member 2 is connected to the upper beam 71 in the beam structure 7.
The upper connecting member 2 is composed of a member having an H-shaped cross section, which includes a web 21 and a pair of flanges 22 and 22 arranged at the left and right ends of the web 21.
A mounting plate 23 is provided on the upper end of the upper connecting member 2, and a bottom plate 24 is provided on the lower end of the upper connecting member 2. Further, an intermediate plate 25 is arranged at the intermediate portion in the height direction of the upper connecting member 2.
The web 21, flange 22, mounting plate 23, bottom plate 24, and intermediate plate 25 are made of so-called ordinary steel.

The web 21 is made of a steel plate having a height from the upper end of the upper connecting member 2 to the middle in the height direction. The web 21 shields the space formed by the pair of flanges 22, 22, the mounting plate 23, and the intermediate plate 25.
The flange 22 is made of a steel plate having a height (length) from the upper end to the lower end of the upper connecting member 2. The pair of flanges 22, 22 are parallel to the left and right columns 73, 73.
The mounting plate 23 is a steel plate fixed to the upper ends of the web 21 and the flanges 22 and 22. The mounting plate 23 has a larger area than the outer shapes of the web 21 and the flanges 22, 22. That is, the mounting plate 23 has a lateral width larger than the distance from the outer surface of the one flange 22 to the outer surface of the other flange 22, and a depth width larger than the width of the flange 22. A plurality of through holes are formed at the edge of the mounting plate 23. The mounting plate 23 is fixed to the beam 71 via bolts B1, B1,... Inserted through the through holes with the upper surface abutting the lower surface of the beam 71. A space filler (mortar or the like) may be provided between the mounting plate 23 and the beam 71.

The bolt B1 penetrates the beam 71 and connects the vibration damping stud structures 1 arranged above and below the beam 71. The bolt B1 may be fixed to the beam 71 without penetrating the beam 71. For example, when the beam 71 is a concrete member, an anchor bolt embedded in the beam 71 may be used as the bolt B1, or when the beam 71 is made of H-shaped steel, a flange of the beam 71. You may use the bolt B1 fixed to.

The bottom plate 24 is a steel plate that is laterally bridged between the pair of flanges 22 and 22 at the lower end of the upper coupling member 2. In this embodiment, the bottom plate 24 is fixed at a position spaced from the lower ends of the flanges 22, 22. The bottom plate 24 may be arranged at the lower ends of the flanges 22, 22. The bottom plate 24 has a depth width equivalent to the width of the flange 22 and shields the lower end portion of the upper coupling member 2.
The intermediate plate 25 is horizontally provided between the pair of flanges 22 and 22 at the intermediate portion in the height direction of the upper connecting member 2. The height position of the intermediate plate 25 is not limited. The intermediate plate 25 has a depth width equivalent to the width of the flange 22. The intermediate plate 25 is interposed between the web 21 and the energy absorbing member 4.
An energy absorbing member 4 is provided below the upper connecting member 2 of the present embodiment.

The energy absorbing member 4 is a hysteresis type seismic energy absorbing material made of a low yield point steel plate. In the present embodiment, as the low yield point steel material, a steel material having an elongation rate of about 40%, which is rich in plastic deformation capacity, is used as compared with a general steel material. The elongation percentage of the low yield point steel plate forming the energy absorbing member 4 is not limited.
The energy absorbing member 4 is arranged so as to shield the space surrounded by the left and right flanges 22, 22, the bottom plate 24, and the intermediate plate 25.
As shown in FIGS. 2 and 3A, a vertical stiffening member (vertical stiffening member) 41 is attached to one surface of the energy absorbing member 4. In the present embodiment, the two vertical stiffening members 41, 41 are arranged in parallel so that the lateral width of the energy absorbing member 4 is divided into three equal parts. The number and arrangement of the vertical stiffening members 41 are not limited.
A lateral stiffening member (horizontal stiffening member) 42 is attached to the other surface of the energy absorbing member 4. In the present embodiment, one lateral stiffening member 42 is installed in the longitudinal intermediate portion of the energy absorbing member 4. The number and arrangement of the lateral stiffening members 42 are not limited.
Each of the vertical stiffening member 41 and the horizontal stiffening member 42 is made of a low yield point steel plate.

As shown in FIG. 1, the lower end of the lower connecting member 3 is connected to the lower beam 72 in the post beam frame 7.
The lower connecting member 3 is composed of a member having an H-shaped cross section, which includes a web 31 and a pair of flanges 32, 32 arranged at the left and right ends of the web 31.
A mounting plate 33 is provided at the lower end of the lower connecting member 3, and a top plate 34 is provided at the upper end of the lower connecting member 3.
The web 31, the flange 32, the mounting plate 33 and the top plate 34 are made of so-called ordinary steel.

The web 31 is made of a steel plate extending from the upper end to the lower end of the lower connecting member 3. The web 31 shields the space formed by the pair of flanges 32, 32, the mounting plate 33, and the top plate 34.
The flange 32 is made of a steel plate extending from the upper end to the lower end of the lower connecting member 3. The pair of flanges 32, 32 are parallel to the left and right columns 73, 73.
The mounting plate 33 is a steel plate fixed to the lower ends of the web 31 and the flanges 32, 32. The mounting plate 33 has a larger area than the outer shapes of the web 31 and the flanges 32, 32. That is, the mounting plate 33 has a lateral width larger than the distance from the outer surface of the one flange 32 to the outer surface of the other flange 32, and a depth width larger than the width of the flange 32. A plurality of through holes are formed at the edge of the mounting plate 33. The mounting plate 33 is fixed to the beam 72 via bolts B1, B1,... Inserted through the through holes with the lower surface abutting the upper surface of the beam 72. A filler (mortar or the like) may be provided between the mounting plate 33 and the beam 72.

The bolt B1 penetrates the beam 72 and connects the vibration damping stud structures 1 arranged above and below the beam 72. The bolt B1 may be fixed to the beam 72 without penetrating the beam 72. For example, when the beam 72 is a concrete member, an anchor bolt embedded in the beam 72 may be used as the bolt B1, or when the beam 72 is made of H-shaped steel, a flange of the beam 72. You may use the bolt B1 fixed to.

The top plate 34 is a steel plate that is bridged between the pair of flanges 32, 32 at the upper end of the lower connecting member 3. The top plate 34 has a depth width equivalent to the width of the flange 32, and shields the upper end portion of the lower connecting member 3. In this embodiment, ribs 35, 35 are arranged at the corners between the lower surface of the top plate 34 and the web 31.
Two ribs 35 are provided on each of the front surface and the back surface of the web 31. The number and arrangement of the ribs 35 are not limited. The ribs 35 may be provided as needed.

As shown in FIG. 2, the first bearing member 5 is provided on the lower end surface of the upper connecting member 2. The first bearing member 5 is a rectangular parallelepiped steel member, is welded to the lower surface of the bottom plate 24, and projects downward from the bottom plate 24. Of the side surfaces of the first pressure support member 5, a side surface opposite to the other side surface of the first pressure support member 5 is in contact with the flange 22. That is, the first bearing member 5 is in contact with the corners of the flange 22 and the bottom plate 24. In addition, as shown in FIG. 3A, the first bearing member 5 is arranged at an intermediate portion of the depth of the bottom plate 24.
As shown in FIG. 2, the height (vertical length) of the first bearing member 5 is the distance from the lower surface of the bottom plate 24 of the upper connecting member 2 to the upper surface of the top plate 34 of the lower connecting member 3 (bottom plate 24 And a top plate 34), but a gap S is formed between the lower end surface of the first support member 5 and the top plate 34 (upper end surface) of the lower connecting member 3. Has been done. In the present embodiment, the lower surface of the first bearing member 5 is located on the same plane as the lower end surface of the flange 22.
In addition, a pair of first bearing members 5 and 5 are arranged at intervals. The interval between the first pressure bearing members 5 and 5 is larger than the width (left and right length) of the second pressure bearing member 6.

The second pressure bearing member 6 is provided on the upper end surface of the lower connecting member 3, as shown in FIG. The second bearing member 6 is a rectangular parallelepiped steel member, is welded to the upper surface of the top plate 34, and protrudes upward from the top plate 34. The second bearing member 6 is fixed to the central portion of the top plate 34 of the lower connecting member 3. That is, the second bearing member 6 is located at the left and right widthwise intermediate portions of the top plate 34 (see FIG. 2) and the depthwise intermediate portions of the top plate 34 (see FIG. 3A). ..
As shown in FIG. 2, the height (vertical length) of the second bearing member 6 is the distance from the lower surface of the bottom plate 24 of the upper connecting member 2 to the upper surface of the top plate 34 of the lower connecting member 3 (bottom plate 24 And a top plate 34), but a gap S is formed between the upper end surface of the second support member 6 and the bottom plate 24 (lower end surface) of the upper connecting member 2. ing. In the present embodiment, the upper surface of the second pressure bearing member 6 is located in the middle of the gap between the lower end surface of the flange 22 formed at the lower end portion of the upper coupling member 2 and the lower surface of the bottom plate 24.

As shown in FIG. 2, the second pressure bearing member 6 is sandwiched from the left and right by the pair of first pressure bearing members 5 and 5. As shown in FIG. 3B, a gap S is formed between the first pressure bearing member 5 and the second pressure bearing member 6.
A friction reducing material 51 is installed on the side surface of the first pressure bearing member 5 on the second pressure bearing member 6 side. In the present embodiment, the plate-shaped friction reducing material 51 is installed on the side surface of the first bearing member 5. A friction reducing agent may be applied to the side surface of the first bearing member 5.
Similarly, friction reducing materials 61 are installed on the left and right side surfaces of the second pressure support member 6 (side surfaces on the first pressure support member 5 side).
The friction reducing materials (friction reducing agents) 51 and 61 may be installed as needed.
The first support member 5 and the second support member 6 are made of so-called ordinary steel.

The seismic control stud structure 1 according to the present embodiment is provided between the lower end surface of the first bearing member 5 and the upper end surface of the lower connecting member 3 (top plate 34), and the upper end surface and the upper portion of the second bearing member 6. Since a gap S (horizontal slit) is formed between the lower end surface of the connecting member 2 (bottom plate 24), no axial force is applied. Therefore, according to the seismic control stud structure 1, even when a large axial force is generated in the beam-column structure 7, it is possible to prevent buckling of the upper connecting member 2 and the lower connecting member 3.
Further, since the gap S is formed between the first pressure bearing member 5 and the second pressure bearing member 6, the gap S is formed between the first pressure bearing member 5 and the second pressure bearing member 6 and the upper coupling member 2. Axial force is not transmitted to the lower connecting member 3. Further, since the first pressure bearing member 5 and the second pressure bearing member 6 are provided with the friction reducing materials 51 and 61 on the surfaces facing each other, the first pressure bearing force is exerted by a lateral force during an earthquake or the like. Even when the member 5 and the second bearing member 6 are in contact with each other, the transmission of the axial force between the upper connecting member 2 and the lower connecting member 3 is suppressed.
Further, when a horizontal force is applied to the beam structure 2, the first pressure support member 5 and the second pressure support member 6 are engaged in the horizontal direction. Therefore, when a large horizontal force acts on the beam structure 2 such as during an earthquake, the horizontal force is transmitted to the energy absorbing member 4 arranged in the upper connecting member 2, and the horizontal energy is efficiently transferred. Be absorbed.

Since the vertical stiffening members 41, 41 are attached to the energy absorbing member 4, it is easy to join the bottom plate 24 and the intermediate plate 25. Further, since the lateral stiffening member 42 is attached to the energy absorbing member 4, the energy absorbing member 4 can be easily joined to the left and right flanges 22, 22.
Further, since the vertical stiffening member 41 of the energy absorbing member 4 is arranged, the shear deformation region can be changed. By deforming the shear deformation region, it becomes easy to adjust the required yield strength and rigidity. That is, the energy absorbing material 4 is divided into three parts by the vertical stiffening material 41 to secure the necessary yield strength and rigidity.

Further, since the first support member 5 and the second support member 6 are formed on the bottom plate 24 of the upper connecting member 2 and the top plate 34 of the lower connecting member 3, respectively, it is possible to prevent the members from increasing in size. it can. That is, since the first bearing member 5 and the second bearing member 6 are within the outer dimensions of the upper connecting member 2 and the lower connecting member 3, respectively, the lateral size of the vibration damping stud structure 1 is required. It is kept to a minimum. Therefore, the influence on the living space of the building can be minimized.
Since the first bearing member 5 is in contact with the flange 22, it is restrained by the flange 22 and functions as a strong reaction member.

<Second embodiment>
The present embodiment is an example of a vibration control stud structure in which the energy absorbing member can be easily replaced.
As shown in FIG. 4, the seismic control stud structure 1 of the second embodiment includes an upper connecting member 2, a lower connecting member 3, an energy absorbing member 4, a first bearing member 5 and a second bearing member 6. ing.
The upper connecting member 2 and the lower connecting member 3 are coaxially arranged in the column beam structure. In the present embodiment, the seismic control stud structure 1 is formed in the middle portion in the longitudinal direction of the upper and lower beams 71, 72 in the rectangular inner space of the column beam structure. The location of the seismic control stud structure 1 is not limited.
A gap S (horizontal slit) is formed between the lower end of the upper connecting member 2 and the upper end of the lower connecting member 3.
The details of the lower connecting member 3, the first pressure bearing member 5, and the second pressure bearing member 6 are the same as the contents shown in the first embodiment, and thus detailed description thereof will be omitted.

The upper end of the upper connecting member 2 is connected to the upper beam 71.
The upper connecting member 2 has an upper member 2a and a lower member 2b. The upper member 2a and the lower member 2b are arranged vertically and are bolted to each other via a joining plate 26. The boundary between the upper member 2a and the lower member 2b of the present embodiment is located at about 1/4 of the height of the upper connecting member 2 from above. The boundary position between the upper member 2a and the lower member 2b is not limited.
The upper member 2a is composed of a member having an H-shaped cross section, which includes a web 21a and a pair of flanges 22a, 22a arranged at the left and right ends of the web 21a.
A mounting plate 23 is provided on the upper end of the upper member 2a. Since the structure of the mounting plate 23 is the same as that shown in the first embodiment, detailed description thereof will be omitted.

The lower member 2b is composed of a member having an H-shaped cross section, which includes a web 21b and a pair of flanges 22b, 22b arranged at the left and right ends of the web 21b. A bottom plate 24 is arranged at the lower end of the lower member 2b. Since the configuration of the bottom plate 24 is the same as that shown in the first embodiment, detailed description will be omitted.
An energy absorbing member 4 is provided below the lower member 2b. Since the details of the energy absorbing member 4 are the same as the contents shown in the first embodiment, detailed description thereof will be omitted.
An intermediate plate 25 is arranged between the energy absorbing member 4 and the web 21b.
The intermediate plate 25 is arranged near the intermediate portion in the height direction of the upper connecting member 2. The height position of the intermediate plate 25 is not limited. Further, since the configuration of the other intermediate plate 25 is the same as the content shown in the first embodiment, detailed description thereof will be omitted.

The joining plate 26 is arranged so as to straddle the webs 21a and 21b of the upper member 2a and the lower member 2b or the flanges 22a and 22b, and together with the other mounting plate 23, the webs 21a and 21b or the flanges 22a and 21b. 22b is sandwiched. The joining plate 26 connects the ground member 2a and the lower member 2b by fastening the bolt B2 that penetrates the webs 21a, 21a or the flanges 22a, 22b.

In the vibration control stud structure 1 of the second embodiment, the lower member 2b is bolted to the upper member 2a and the gap S is formed between the lower member 2b and the lower connecting member 3, so that only the lower member 2b is formed. Can be exchanged. Therefore, when the energy absorbing member 4 is deformed by a lateral force during an earthquake or the like, the seismic control stud structure 1 can be returned to its original state by replacing the lower member 2b. Since the other operational effects of the seismic control stud structure 1 of the second embodiment are the same as those shown in the first embodiment, detailed description thereof will be omitted.

<Third embodiment>
Similar to the second embodiment, the present embodiment has a vibration control stud structure in which the energy absorbing member can be easily replaced.
As shown in FIG. 5, the vibration control stud structure 1 of the third embodiment includes an upper connecting member 2, a lower connecting member 3, an energy absorbing member 4, a first bearing member 5 and a second bearing member 6. ing.
The upper connecting member 2 and the lower connecting member 3 are coaxially arranged in the column beam structure. In the present embodiment, the seismic control stud structure 1 is formed in the middle portion in the longitudinal direction of the upper and lower beams 71, 72 in the rectangular inner space of the column beam structure. The location of the seismic control stud structure 1 is not limited.
A gap S (horizontal slit) is formed between the lower end of the upper connecting member 2 and the upper end of the lower connecting member 3.
The details of the lower connecting member 3, the first pressure bearing member 5, and the second pressure bearing member 6 are the same as the contents shown in the first embodiment, and thus detailed description thereof will be omitted.

The upper end of the upper connecting member 2 is connected to the upper beam 71.
The upper connecting member 2 has an upper member 2a and a lower member 2b. The upper member 2a and the lower member 2b are arranged vertically and are bolted to each other via the connecting plates 27a and 27b. The boundary between the upper member 2a and the lower member 2b of the present embodiment is set at a position about ½ from the top with respect to the height of the upper connecting member 2. The boundary position between the upper member 2a and the lower member 2b is not limited.
The upper member 2a is composed of a member having an H-shaped cross section, which includes a web 21a and a pair of flanges 22a, 22a arranged at the left and right ends of the web 21a.
A mounting plate 23 is arranged on the upper end of the upper member 2a. Since the structure of the mounting plate 23 is the same as that shown in the first embodiment, detailed description thereof will be omitted.
A connecting plate 27a is arranged at the lower end of the upper member 2a.
The connecting plate 27a is a steel plate fixed to the lower ends of the web 21a and the flanges 22a and 22a. The connecting plate 27a has a larger area than the outer shapes of the web 21a and the flanges 22a, 22a. That is, the connecting plate 27a has a lateral width larger than the distance from the outer surface of the one flange 22a to the outer surface of the other flange 22a, and a depth width larger than the width of the flange 22a. A plurality of through holes (not shown) are formed at the edge of the connecting plate 27a.

The lower member 2b is configured by a member having an H-shaped cross section, which includes the energy absorbing material 4 and a pair of flanges 22b, 22b arranged at the left and right ends of the energy absorbing material 4. A bottom plate 24 is arranged at the lower end of the lower member 2b. Since the configuration of the bottom plate 24 is the same as that shown in the first embodiment, detailed description will be omitted.
The energy absorbing member 4 is arranged so as to shield the space surrounded by the left and right flanges 22b, 22b, the bottom plate 24, and the connecting plate 27b. Since the other configurations of the energy absorbing member 4 are the same as the contents shown in the first embodiment, detailed description thereof will be omitted.
The connecting plate 27b is a steel plate fixed to the energy absorber 4 and the upper ends of the flanges 22b and 22b. The connecting plate 27b has a larger area than the outer shapes of the energy absorber 4 and the flanges 22b and 22b. That is, the connecting plate 27b has a lateral width larger than the distance from the outer surface of the one flange 22b to the outer surface of the other flange 22b, and a depth width larger than the width of the flange 22b. A plurality of through holes (not shown) are formed at the edge of the connecting plate 27b.
For joining the upper member 2a and the lower member 2b, the connecting plate 27a of the upper member 2a and the connecting plate 27b of the lower member 2b were vertically stacked, and the through holes of both connecting plates 27a, 27b were penetrated. This is done by tightening the nut N on the bolt B2.

According to the damping stud structure 1 of the third embodiment, it is possible to obtain the same effects as those of the damping pillar structure 1 of the second embodiment.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and the respective constituent elements described above can be appropriately modified without departing from the spirit of the present invention.
For example, the energy absorbing member 4 may be provided on the lower connecting member 2. Also, the upper and lower connecting members are connected to the beams respectively, but by connecting to the slab, it is possible to arrange the seismic control stud structure without being limited to the column beam structure of the building. Becomes
Further, in the above embodiment, the case where one plate-shaped member is used as the energy absorbing member 4 has been described, but the energy absorbing member 4 may be formed by combining a plurality of plate members. If the energy absorbing member 4 is divided into smaller pieces, it is possible to cope with the required energy absorption.
Further, the gap S formed between the upper connecting member 2 and the lower connecting member 3 may be filled with a low elastic material. For the low elastic material, for example, a low elastic resin can be used.
In the above embodiment, the first pressure bearing member sandwiches the second pressure bearing member, but the second pressure bearing member may sandwich the first pressure bearing member.

1... Seismic control stud structure, 2... Upper connecting member, 2a... Upper member, 2b... Lower member,
3... Lower connecting member, 4... Energy absorbing member, 41... Vertical stiffening member (vertical stiffening member),
42... Lateral stiffening member (horizontal stiffening member) 5... First bearing member 6, 6... Second bearing member,
7...Column beam structure, 71...Upper beam, 72...Lower beam, B1, B2...Bolt, N...Nut

Claims (3)

An upper connecting member connected to the upper beam in the column-beam frame,
A lower connecting member connected to the lower beam in the column beam frame,
An energy absorbing member provided on the upper connecting member or the lower connecting member,
A pair of first bearing members protruding downward from the lower end surface of the upper connecting member,
Between the first pressure- bearing members, a second pressure-bearing member protruding upward from the upper end surface of the lower connecting member, a damping stud structure,
The upper connecting member is a steel material having an H shape in cross section, which includes a web and a pair of flanges.
The first bearing member is in contact with the inner surfaces of the flanges facing each other,
Between the first bearing member and the second bearing member, between the first bearing member and the upper end surface of the lower connecting member, and between the second bearing member and the lower end surface of the upper connecting member. have a gap is formed between,
A seismic control stud structure characterized by exhibiting a seismic control effect by horizontally engaging the first pressure support member and the second pressure support member . The energy absorbing member is made of a low yield point steel plate,
Wherein the one surface of the energy absorbing member has a plurality of longitudinal stiffeners vertically is additionally provided, one lateral stiffeners sideways to a position intersecting the Tateho Tsuyoshizai the other surface The seismic control stud structure according to claim 1, wherein the seismic control stud structure is attached. A friction reducing material is applied to a side surface of the first supporting member on the second supporting member side and a side surface of the second supporting member on the first supporting member side,
The upper connecting member has an upper member and a lower member joined by bolts,
The damping stud structure according to claim 1 or 2, wherein the energy absorbing member is provided on the lower member.

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