JP6944348B2 - Mounting structure of vibration control device - Google Patents

Description

The present invention relates to a mounting structure of a seismic control device arranged diagonally of a rectangular structure consisting of a base of a building and columns and beams.

Conventionally, as a technique for protecting a building from the shaking of an earthquake, a seismic control technique for absorbing the energy of an earthquake (external force such as compressive force and tensile force) by a damper is known (see, for example, Patent Document 1). ..

In the vibration control device described in Patent Document 1, dampers are arranged on the diagonal line of a rectangular structure portion composed of a base, columns, and beams at a portion corresponding to a brace.

In the vibration control device described in Patent Document 1, both ends of the damper are fixed by fixing metal fittings at diagonal corners in the same manner as in the brace. In this case, in order to strengthen the fixing, the fixing bracket is composed of two angle-shaped members that fix different side surfaces of the ends of the brace members that fix the damper.

Further, as a method of fixing the brace, a structure is known in which reinforcing metal fittings, which are fixing metal fittings, are installed at the corners of the base and the column (see, for example, Patent Document 2).

In the seismic retrofitting device described in Patent Document 2, the first mounting portion and the second mounting portion fixed to the base and the column, respectively, and the first mounting portion and the second mounting portion are bent and formed along the side edges thereof. One end of the brace member is fixed to the brace portion by using a substantially L-shaped reinforcing metal fitting (hereinafter referred to as a fixing metal fitting) composed of the brace portion.

Japanese Unexamined Patent Publication No. 2012-251364 (FIGS. 4 and 5) Japanese Unexamined Patent Publication No. 2006-322278 (Fig. 1)

However, in the structure described in Patent Document 1, since different side surfaces of the ends of the brace members are fixed by the two members constituting the fixing bracket, it takes time and effort for construction, and there is a concern that the installation of the vibration control device becomes troublesome. There is.

On the other hand, in the structure described in Patent Document 2, since one end of the brace member is attached to the brace portion of the substantially L-shaped fixing bracket with a mounting bolt, the reinforcing bracket (fixing bracket) and the brace member are attached. Is easy to install.

By the way, unlike the conventional brace, the damper absorbs energy by deforming the damper itself, so that the building structure must be displaced.

Therefore, when the damper described in Patent Document 1 is fixed by the fixing bracket described in Patent Document 2, a load is applied to the column end portion due to the displacement from the base or the column. Therefore, if an attempt is made to give the damper a larger energy absorbing capacity, the load applied to the column end portion also increases accordingly.

As a method of avoiding the increase in the load, a method of fixing the fixing bracket at a position away from the corners of the base or the beam and the column can be considered, but this method increases the size of the fixing bracket, resulting in workability and manufacturing. There is a concern that the cost will be a problem.

The present invention has been made in view of the above circumstances, so that even if the displacement between the base or the beam and the column becomes large, the load applied to the column can be reduced, the workability can be improved, and the manufacturing cost can be reduced. An object of the present invention is to provide a mounting structure for a vibration control device.

In order to achieve the above object, the present invention is an attachment structure of a seismic control device arranged on the diagonal line of a rectangular structure portion consisting of a base of a building and a pillar and a beam, and the seismic control device is used for an earthquake. It is composed of a damper portion that absorbs vibration energy and a brace material made of an aluminum profile that fixes the damper portion. It is provided with a mounting portion for fixing to the corner portion formed by the pillar, and the mounting portion is composed of a horizontal fixing piece fixed to the base or the beam and a vertical mounting piece standing orthogonally from the horizontal fixing piece. A vertical fixing member including a horizontal fixing member, a vertical fixing piece fixed to the pillar, and a horizontal mounting piece that stands up at right angles from the vertical fixing piece. The mounting piece of any one of the horizontal mounting pieces of the vertical fixing member is the thickness of the other mounting piece from the horizontal fixing piece of the horizontal fixing member or the vertical fixing piece of the vertical fixing member via an inclined portion. It is biased toward the back of the rectangular structure portion, connects the vertical mounting piece of the horizontal fixing member and the horizontal mounting piece of the vertical fixing member, and is described above via a connection pin penetrating the vertical mounting piece and the horizontal mounting piece. It is characterized in that it is made by pivotally attaching a brace material (claim 1).

With this configuration, after combining the two members, the horizontal fixing member fixed to the base or beam and the vertical fixing member fixed to the pillar, the vertical mounting piece of the horizontal fixing member and the horizontal mounting piece of the vertical fixing member The brace material can be attached to one common place.

Further, with such a configuration, it is sufficient to fix the horizontal fixing member or the vertical fixing member to the base, the beam or the column with reference to one of them, so that the positioning in the back direction with respect to the damper portion can be facilitated. can.
In this case, by deviating through the inclined portion, the distance between the mounting hole of the fixing screw for fixing the vertical fixing piece or the horizontal fixing piece and the horizontal mounting piece or the vertical mounting piece becomes close, so that the rigidity of the mounting piece should be increased. It is Ru can.

Further, in the present invention, it is preferable that the heights of the vertical mounting piece and the horizontal mounting piece are gradually lowered as the distance from the corners increases (claim 2 ).

With this configuration, even if the vibration energy increases, the concentrated load of the contact portion between the column and the vertical fixing member at a position away from the corner formed by the base and the column and the corner formed by the beam and the column is dispersed. Therefore, the load applied to the pillar can be reduced.

In addition, in the present invention, the horizontal fixing member is formed in a substantially T-shaped cross section in which the vertical mounting piece stands up from the inner side of the end of the horizontal fixing piece, and in the vertical fixing member, the horizontal mounting piece is the above. It is preferable that the vertical fixing piece is formed in a substantially T-shaped cross section that stands up from the inner side of the end portion (claim 3 ).

With this configuration, the horizontal and vertical fixing pieces also have fixing parts in the back direction of the rectangular structure with respect to the vertical and horizontal mounting pieces, so that stress concentration during compression can be avoided.

According to the present invention, since it is configured as described above, the following remarkable effects can be obtained.

(1) According to the invention of claim 1, after combining two members, a horizontal fixing member fixed to a base or a beam and a vertical fixing member fixed to a pillar, the horizontal fixing member is perpendicular to the vertical mounting piece. The brace material can be attached to one common place on the horizontal attachment piece of the fixing member. Therefore, even if the displacement between the base or the beam and the column becomes large, the load applied to the column can be reduced, the workability can be improved, and the manufacturing cost can be reduced.

(2) Further , according to the invention of claim 1 , since the positioning in the back direction with respect to the damper portion can be facilitated, in addition to the above (1), the workability can be further improved. ..
In this case, by biasing the horizontal attachment piece or vertical mounting piece via an inclined portion, it is possible to increase the rigidity of the mounting piece, Ru can further improve the strength of the mounting portion.

(3) According to the invention of claim 2 , even if the vibration energy increases, the load applied to the column can be reduced. Therefore, in addition to the above (1) and (2), the rectangular shape of the building is further increased. The earthquake resistance of the structural part can be improved.

(4) According to the invention of claim 3, since the horizontal fixing piece and the vertical fixing piece also have a fixing portion in the back direction of the rectangular structure portion with respect to the vertical mounting piece and the horizontal mounting piece, they are at the time of compression. Since stress concentration can be avoided, in addition to the above (1) to (3), the seismic resistance of the rectangular structure portion of the building can be further improved.

It is a schematic front view which shows the mounting structure of the vibration control device which concerns on this invention. It is an enlarged front view of the part I of FIG. FIG. 2A is a plan view (a) and a side view (b) of FIG. 2A. It is a front view (a) and a side view (b) which show the connection state of the horizontal fixing member and the vertical fixing member in this invention. It is a front view (a), a side view (b) and a cross-sectional view (c) along line II-II of (a) which show the said vertical fixing member. It is a front view (a), a plan view (b) and a cross-sectional view (c) along line III-III of (a) which show the horizontal fixing member. It is a perspective view which shows the said vertical fixing member. It is a perspective view which shows the said horizontal fixing member. It is an enlarged front view of the IV part of FIG. 7A is a bottom view (a) and a side view (b) of FIG. 7A. It is an exploded perspective view which shows the horizontal fixing member, the vertical fixing member, the lower brace material and the cover material in this invention. It is a front view (a) which shows the connection state of a damper and a brace material in this invention, and is the enlarged cross-sectional view (c) of the V part of bottom view (b) and (a). 9 is an enlarged cross-sectional view taken along the line VI-VI of FIG. 9A. It is an exploded perspective view which shows the lower brace material and the central brace material in this invention. It is an exploded perspective view which shows the upper brace material, the central brace material and a damper in this invention. It is explanatory drawing (b) which shows the front view (a) which shows the damper in this invention, and the half part of the corrugated rib of the part VII of (a) separated.

Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the accompanying drawings. Here, a case where the vibration control device according to the present invention is applied to, for example, a wooden building will be described.

As shown in FIG. 1, the seismic control device according to the present invention includes a base 1 of a building, columns 2a and 2b erected on the base 1, and beams 3 and the like laid horizontally on the upper ends of columns 2a and 2b. In the space portion 4 of the rectangular structure portion 5 formed by, for example, an upper brace material 11, a lower brace material 12, and a central brace material 13 are arranged diagonally between the columns 2a and 2b and the base 1 or the beam 3. A damper that can absorb external forces such as compressive force and tensile force applied to the structural member between the upper brace material 11 and the central brace material 13, that is, absorb and attenuate the vibration energy due to the external force such as compressive force and tensile force. It is configured by interposing a unit 20 (hereinafter referred to as a history damper 20). In this case, two history dampers 20 are connected in the longitudinal direction.

The upper brace material 11, the lower brace material 12, and the central brace material 13 are each formed of an extruded aluminum profile, and both ends thereof, that is, the outer end of the upper brace material 11 and the lower brace material 12. The portion is provided with mounting portions 30A and 30B for fixing to the corner portion formed by the base 1 and the pillar 2a and the corner portion formed by the beam 3 and the pillar 2b.

As shown in FIGS. 2A, 2B and 3, the mounting portion 30A fixed to the corner portion formed by the base 1 and the pillar 2a is orthogonal to the horizontal fixing piece 32 fixed to the base 1 and the horizontal fixing piece 32. A vertical fixing member 34 composed of a horizontal fixing member 31 composed of a vertical mounting piece 33 standing upright, a vertical fixing piece 35 fixed to a pillar 2a, and a horizontal fixing piece 36 standing up orthogonally from the vertical fixing piece 35. It is mainly composed of and. The horizontal fixing member 31 and the vertical fixing member 34 are made of extruded aluminum.

The vertical mounting piece 33 of the horizontal fixing member 31 and the horizontal mounting piece 36 of the vertical fixing member 34 are connected by a connecting bolt 37a and a nut 37b, and are on the lower side via a connecting pin 38 penetrating the vertical mounting piece 33 and the horizontal mounting piece 36. The brace material 12 is pivotally attached.

As shown in FIGS. 4 and 6A, the vertical fixing member 34 is vertically fixed to a substantially rectangular vertical fixing piece 35 having a notch 35a on one side of the lower end side (corner side in the mounted state) of the rectangle. The piece 35 is formed in a substantially T-shaped cross section including a horizontal mounting piece 36 that rises orthogonally from the inner side of the end opposite to the notch 35a of the piece 35.
In this case, the horizontal mounting piece 36 is composed of a rectangular base portion 36a and an auxiliary portion 36b extending to the upper end side of the rectangular base portion 36a, and the height of the auxiliary portion 36b is formed gradually lower toward the upper end side. ing. That is, the height of the horizontal mounting piece 36 is gradually lowered as the distance from the corner formed by the base 1 and the pillar 2a increases.

The vertical fixing piece 35 is provided with a plurality of mounting holes 35b, and the vertical fixing member 34 is fixed to the pillar 2a by the fixing screws 35c penetrating the mounting holes 35b.
Further, an insertion hole 36c through which the connection pin 38 can be inserted is provided in the upper portion of the horizontal mounting piece 36 on the outer side of the rectangular base portion 36a, and the inner side (vertical fixing piece side) and the lower end side of the rectangular base portion 36a are provided. Is provided with three mounting holes 36d.

On the other hand, as shown in FIGS. 5 and 6B, the horizontal fixing member 31 is horizontally fixed with a substantially rectangular horizontal fixing piece 32 having notches 32a on one side (corner side in the mounted state) on the left and right sides of the rectangle. From the inner side of the end opposite to the notch 32a of the piece 32 to the outer side by the thickness of the horizontal mounting piece 36 of the vertical fixing member 34 via the inclined portion 33e (the back side of the rectangular structure portion 5 in the mounted state). It is formed in a substantially T-shaped cross section, which is composed of a vertical mounting piece 33 that is biased toward the surface and stands up at right angles.
In this case, the vertical mounting piece 33 is composed of a rectangular base portion 33a and an auxiliary portion 33b extending to the left and right other ends of the rectangular base portion 33a, and the height of the auxiliary portion 33b is directed outward. It is gradually formed lower. That is, the height of the vertical mounting piece 33 is gradually lowered as the distance from the corner formed by the base 1 and the pillar 2a increases.

The horizontal fixing piece 32 is provided with a plurality of mounting holes 32b, and the horizontal fixing member 31 is fixed to the base 1 by the fixing screws 32c penetrating the mounting holes 32b.
Further, an insertion hole 33c through which the connection pin 38 can be inserted is provided in the upper portion of the vertical mounting piece 33 on the outer side of the rectangular base portion 33a, and the inner side (horizontal fixing piece side) and the side end of the rectangular base portion 33a are provided. Three mounting holes 33d are provided on the side.

The notch 35a provided in the vertical fixing piece 35 of the vertical fixing member 34 formed as described above and the notch 32a provided in the horizontal fixing piece 32 of the horizontal fixing member 31 are located on the corner side in the mounted state. Therefore, it is possible to avoid interference with the fixing metal fittings (not shown) for fixing the base 1 and the pillar 2a.

The horizontal mounting piece 36 of the vertical fixing member 34 fixed to the pillar 2a formed as described above and the vertical mounting piece 33 of the horizontal fixing member 31 fixed to the base 1 are overlapped with each other. And the nut 37b is screwed into the connecting bolt 37a penetrating the mounting holes 36d and 33d provided in the vertical mounting piece 33 to connect the horizontal mounting piece 36 and the vertical mounting piece 33.

A bifurcated portion 12d formed at the end of the lower brace material 12 is arranged so as to cover the outside of the insertion holes 36c and 33c provided in the connected horizontal mounting piece 36 and the vertical mounting piece 33, and the bifurcated portion 12d is arranged. By inserting the connection pin 38 into the insertion hole 12e provided in the portion 12d and the insertion holes 36c and 33c provided in the horizontal mounting piece 36 and the vertical mounting piece 33, the connection pin 38 is perpendicular to the horizontal fixing member 31 constituting the mounting portion 30A. The lower brace material 12 is rotatably pivotally attached to the fixing member 34. The head 38a of the connecting pin 38 is covered with a cover material 39 attached to the side surface of the lower brace material 12 to prevent the connecting pin 38 from being exposed to the outside and falling off.

In the above description, a case where the vertical mounting piece 33 of the horizontal fixing member 31 is biased to the outer side (the back side of the rectangular structure portion 5 in the mounted state) by the thickness of the horizontal mounting piece 36 of the vertical fixing member 34 will be described. However, the horizontal mounting piece 36 of the vertical fixing member 34 may be biased to the outer side (the back side of the rectangular structure portion 5 in the mounted state) by the thickness of the vertical mounting piece 33 of the horizontal fixing member 31.

As shown in FIGS. 8 to 11, the lower brace material 12 is formed of a hollow rectangular extruded shape member made of aluminum, and has a cross-sectional shape outward from the upper side of the hollow rectangular portion 12a. It has a pair of protruding ridges 12b, a thick portion 12c at the center of the lower side, and is formed to be thick leaving the lower sides on both sides.
A bifurcated portion 12d is provided at one end of the lower brace material 12 by cutting out in the vertical direction, and an insertion hole 12e for a connecting pin 38 is provided at a position facing the bifurcated portion 12d.

As shown in FIG. 8, the cover material 39 is formed in a crank shape having a rectangular holding piece 39c on one side of the rectangular mounting piece 39a via an inclined portion 39b. The cover material 39 is attached to the lower brace material 12 by screwing a fixing screw 39e such as a tapping screw penetrating the mounting hole 39d provided in the mounting piece 39a to the side wall of the lower brace material 12.

As shown in FIGS. 10 and 11, the central brace material 13 is formed of a hollow rectangular extruded shape material made of aluminum, and the lower brace material 13 is located at a position opposite to the upper inner surface of both side walls 13a. A pair of concave grooves 13b on which the ridges 12b provided on the 12 can slide are formed in a longitudinal shape. Further, the lower wall 13c is provided with mounting holes 13d at appropriate intervals along the longitudinal direction.

The lower brace material 12 is formed so as to be insertable in the hollow portion of the central brace material 13 formed as described above, and is provided in the lower brace material 12 when the lower brace material 12 is inserted. The length of the lower brace material 12 can be adjusted by sliding the ridge 12b into the concave groove 13b provided in the central brace material 13. With the length of the lower brace material 12 adjusted, a connecting screw 14 such as a tapping screw that penetrates the mounting hole 13d provided in the central brace material 13 is screwed to the lower brace material 12 to connect the lower brace. The material 12 and the central brace material 13 are connected.

As described above, the protrusions 12b provided on the lower brace material 12 are slidably engaged with the concave grooves 13b provided on the central brace material 13 to prevent displacement in the cross-sectional direction from each other. It is possible to facilitate screwing (screw connection) into the lower brace material 12 of the connecting screw 14.

As shown in FIGS. 7A and 7B, the mounting portion 30B fixed to the corner portion formed by the beam 3 and the pillar 2b stands up at right angles from the horizontal fixing piece 32 fixed to the beam 3 and the horizontal fixing piece 32. Mainly composed of a horizontal fixing member 31 composed of a vertical mounting piece 33, a vertical fixing piece 35 fixed to a pillar 2b, and a vertical fixing member 34 composed of a horizontal mounting piece 36 standing orthogonally from the vertical fixing piece 35. It is configured in.
Since the horizontal fixing member 31 and the vertical fixing member 34 constituting the mounting portion 30B have the same structure as the horizontal fixing member 31 and the vertical fixing member 34 constituting the mounting portion 30A, the same reference numerals are used here. The description will be omitted.

As shown in FIGS. 9 and 12, the upper brace material 11 including the mounting portion 30B is formed of a hollow rectangular extruded shape member made of aluminum, and is slidable in the hollow portion of the central brace material 13. Will be inserted into.
A bifurcated portion 11a is provided at one end of the upper brace material 11, and an insertion hole 11b for a connecting pin 38 is provided at a position facing the bifurcated portion 11a.
Further, the upper wall on the other end side of the upper brace material 11 is provided with a rectangular notch portion 11d whose tip is open, leaving a pair of lip portions 11c on both sides.

In the upper brace material 11 formed as described above, the bifurcated portion 11a is arranged so as to cover the outside of the horizontal mounting piece 36 of the vertical fixing member 34 and the vertical mounting piece 33 of the horizontal fixing member 31, and the bifurcated portion 11a is arranged. By inserting the connection pin 38 into the insertion hole 11b provided in 11a and the insertion holes 36c and 33c provided in the horizontal mounting piece 36 and the vertical mounting piece 33, the connection pin 38 is vertically fixed to the horizontal fixing member 31 constituting the mounting portion 30B. The upper brace material 11 is rotatably pivotally attached to the member 34. The head 38a of the connecting pin 38 is covered with a cover material 39 attached to the side surface of the upper brace material 11 to prevent the connecting pin 39 from being exposed to the outside and falling off.

As shown in FIGS. 9, 12, and 13, the history damper 20 has an inner side surface facing position along the longitudinal direction of a pair of side pieces 21 each of which is connected to the upper brace material 11 and the central brace material 13. Has a plurality of (three) hollow portions 23 formed by corrugated ribs 22 having concave-convex arc-shaped bent portions 22a connected at equal intervals in a slightly biased state, and a pair of side pieces 21 in the longitudinal direction. It is formed of an extruded aluminum profile having a plurality of, for example, two straight ribs 24 parallel to each other between the inner side surfaces at symmetrical positions at both ends of the above. Both ends of both side pieces 21 in the longitudinal direction protrude outward from the straight rib 24.

In this case, as shown in FIG. 13, the wavy rib 22 has a curved tapered portion 25 that becomes thicker from the bent portion 22a toward one side, and the facing portion is formed 180 degrees rotationally symmetrically. Moreover, the adjacent wavy ribs 22 are formed symmetrically with respect to the center between the adjacent ones. The thickness T1 of the connecting portion of the corrugated rib 22 with the side piece 21, that is, the base end portion 25a of the tapered portion 25 is thicker than the thickness T of the side piece 21, and the thickness T2 of the central portion of the corrugated rib 22 is It is thinner than the thickness T of the side piece 21. Further, the thickness T3 of the straight rib 24 is thinner than the thickness T of the side piece 21.

The reason why the connection positions of both ends of each wavy rib 22 and the side piece 21 are slightly deviated at the opposite positions is that the wavy rib 22 is deformed by external forces such as compressive force PA and tensile force PB acting on the history damper 20. This is to make it easier. A plurality of mounting holes 26 are formed in the side pieces 21 at appropriate intervals on the center line along the longitudinal direction. In this case, the mounting holes 26 are provided at least at a plurality of locations including both ends in the longitudinal direction of the history damper 20.

The history damper 20 formed as described above is formed symmetrically with respect to the center line C1 between the side pieces 21 and the center line C2 in the longitudinal direction of the side pieces 21 (see FIG. 13A).

In this case, two history dampers 20 are inserted into the notch portion 11d provided in the upper brace material 11 with the tips of the side pieces 21 in contact with each other, and one side piece of the history damper 20 is inserted. 21 is connected to the mounting hole 11e provided in the upper brace material 11 by a connecting screw 27 which is a connecting member penetrating the mounting hole 26 provided in the side piece 21 (see FIG. 9C).
Further, the other side piece 21 of the history damper 20 is connected to the upper brace material 11 by a connecting screw 27 penetrating the mounting hole 13d provided in the central brace material 13 and the mounting hole 26 provided in the side piece 21. ing.

In this case, a gap of 0.5 mm is provided between the history damper 20 and the upper brace material 11, and a gap of 1.0 mm is provided between the central brace material 13 and the upper brace material 11.
In this way, by providing as small a gap as possible between the history damper 20 and the upper brace material 11, the central brace material 13 and the upper brace material 11 so as not to interfere with each other, the history damper 20, the upper brace material 11 and the upper brace material 11 are provided. The contact of the central brace material 13 restrains the local deformation and prevents the local buckling from occurring.

According to the mounting structure of the above embodiment, after combining the two members of the horizontal fixing member 31 fixed to the base 1 or the beam 3 and the vertical fixing member 34 fixed to the columns 2a and 2b, the horizontal fixing member 31 is vertical. The upper brace material 11 and the lower brace material 12 can be pivotally attached by the connection pins 38 inserted into the insertion holes 36c and 33c that are provided in the horizontal attachment piece 36 of the attachment piece 33 and the vertical fixing member 34 and communicate with each other. ..

Therefore, even if the displacement between the base 1 or the beam 3 and the columns 2a and 2b becomes large, the load applied to the columns 2a and 2b can be reduced, the workability can be improved, and the manufacturing cost can be reduced.

Further, by deflecting one of the vertical mounting piece 33 of the horizontal fixing member 31 and the horizontal mounting piece 36 of the vertical fixing member 34 toward the back of the rectangular structure portion 5 by the thickness of the other mounting piece. , Since it is sufficient to fix to the base 1, the beam 3 or the columns 2a, 2b with reference to either the horizontal fixing member 31 or the vertical fixing member 34, the positioning in the back direction with respect to the history damper 20 can be facilitated. ..

In this case, as described in the above embodiment, by providing the inclined portion 33e on the vertical mounting piece 33 of the horizontal fixing member 31, the distance between the mounting hole 32b provided in the horizontal fixing piece 32 and the vertical mounting piece 33 becomes short. That is, since the distance between the horizontal mounting piece 36 having no inclined portion and the mounting hole 35b provided in the vertical fixing piece 35 is the same, the rigidity of the vertical mounting piece 33 can be increased.
When the horizontal mounting piece 36 of the vertical fixing member 34 is provided with an inclined portion, the rigidity of the horizontal mounting piece 36 can be similarly increased.

Further, since the heights of the vertical mounting piece 33 and the horizontal mounting piece 36 are gradually lowered as they are separated from the corners formed by the base 1 and the pillar 2a, and the beam 3 and the pillar 2b, even if the vibration energy increases. , The concentrated load of the contact portion between the pillars 2a and 2b and the vertical fixing member 34 at a position away from the corner portion formed by the base 1 and the pillar 2a and the corner portion formed by the beam 3 and the pillar 2b is distributed to the pillars 2a and 2b. Since the applied load can be reduced, the earthquake resistance of the rectangular structure portion 5 of the building can be improved.

Further, the horizontal fixing member 31 is formed with a substantially T-shaped cross section in which the vertical mounting piece 33 stands up from the inner side of the end of the horizontal fixing piece 32, and the vertical fixing member 34 has the horizontal mounting piece 36 of the vertical fixing piece 35. Since the horizontal fixing piece 32 and the vertical fixing piece 35 are formed in a substantially T-shaped cross section that stands up from the inner side of the end portion, the horizontal fixing piece 32 and the vertical fixing piece 35 are oriented in the depth direction of the rectangular structure portion 5 with respect to the vertical mounting piece 33 and the horizontal mounting piece 36. Also has a fixed portion, so stress concentration during compression can be avoided. As a result, it is possible to further improve the seismic resistance of the rectangular structure portion of the building.

In the above embodiment, the case where two history dampers 20 are connected in the longitudinal direction has been described, but the number of history dampers 20 may be arbitrary. For example, one history damper 20 is centered on the upper brace material 11. It may be interposed between the brace materials 13.

1 Base 2a, 2b Pillar 3 Beam 4 Space part 5 Rectangular structure part 11 Upper brace material 12 Lower brace material 13 Central brace material 20 History damper (damper part)
30A, 30B Mounting part 31 Horizontal fixing member 32 Horizontal fixing piece 33 Vertical mounting piece 33a Rectangular base part 33b Auxiliary part 33c Insertion hole 33d Mounting hole 33e Inclined part 34 Vertical fixing member 35 Vertical fixing piece 36 Horizontal mounting piece 36a Rectangular base part 36b Auxiliary part 36c Insertion hole 36d Mounting hole 37a Connecting bolt 37b Nut 38 Connection pin

Claims (3)

It is a mounting structure of a seismic control device arranged diagonally of a rectangular structure consisting of a base of a building and columns and beams.
The vibration control device is composed of a damper portion that absorbs the vibration energy of an earthquake and a brace material made of an aluminum profile that fixes the damper portion.
Both ends of the brace material are provided with mounting portions for fixing to the corners formed by the base and the pillars and the corners formed by the beams and the pillars.
The mounting portion includes a horizontal fixing piece composed of a horizontal fixing piece fixed to the base or the beam, a vertical mounting piece rising orthogonally from the horizontal fixing piece, and a vertical fixing piece fixed to the pillar. , Consists of a vertical fixing member consisting of a horizontal mounting piece that rises orthogonally from the vertical fixing piece.
The mounting piece of any one of the vertical mounting piece of the horizontal fixing member and the horizontal mounting piece of the vertical fixing member is from the horizontal fixing piece of the horizontal fixing member or the vertical fixing piece of the vertical fixing member via an inclined portion. The thickness of the other mounting piece is biased toward the back of the rectangular structure.
The vertical mounting piece of the horizontal fixing member and the horizontal mounting piece of the vertical fixing member are connected, and the brace material is pivotally attached via a connecting pin penetrating the vertical mounting piece and the horizontal mounting piece.
The mounting structure of the vibration control device is characterized by this. In the mounting structure of the vibration control device according to claim 1,
The mounting structure of the vibration control device is characterized in that the heights of the vertical mounting piece and the horizontal mounting piece are gradually lowered as the distance from the corners increases. In the mounting structure of the vibration control device according to claim 1,
The horizontal fixing member is formed in a substantially T-shaped cross section in which the vertical mounting piece stands up from the inside of the end of the horizontal fixing piece, and in the vertical fixing member, the horizontal mounting piece is inside the end of the vertical fixing piece. A mounting structure for a vibration control device, characterized in that it is formed in a substantially T-shaped cross section that stands up from the side.

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