JP2015129384A - Vibration control structure of building, and building with the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vibration control structure of a building in which superior earthquake performance can be imparted to the building by eliminating or reducing a welding operation and reducing constraints of entry to users and tenants of the building, for example, even if applied to earthquake resistant renovation of the existing building, and to provide the building with the same.SOLUTION: A vibration control structure is characterized by: disposing a V-brace 1 with a pair of one ends 1a connected to pillar members 2 through crimping mechanisms 10, respectively; and disposing vibration control devices 6, 7 with one ends 6a, 7a connected to the pillar members 2 through the crimping mechanisms 10, and the other ends 6b, 7b connected to the other ends 1b of the V-brace 1. The crimping mechanism 10 includes: first crimping members 11 with one ends 1a of the V-brace 1 and one ends 6a, 7a of the vibration control devices 6, 7 connected thereto, and crimped and installed in one side surfaces 2a of the pillar members 2; second crimping members 12 crimped and installed in the other side surfaces 2b of the pillar members 2; and crimping force applying members 13 for crimping the first crimping members 11 and the second crimping members 12 to the pillar members 2 by the tensioning force.

Description

  The present invention relates to a vibration control structure for a building for attenuating vibration energy applied to the building due to an earthquake or the like to reduce the response of the building, and a building including the same.

  For example, if a middle- and high-rise building receives an oversized earthquake, the weakest layer of the building will be damaged and the proof stress will begin to decline. Seismic energy (vibration energy) will concentrate on this layer, causing layer collapse, and the other layers will be healthy. However, the phenomenon that the building collapses due to the layer collapse mode occurs. Even if it does not collapse, the damage of the weakest layer will be enormous, making it difficult to recover by repair.

  In contrast, by installing various vibration control devices (vibration dampers, energy absorption mechanisms) in the frame frame surrounded by the pillars and beams of the building, the response of the building during an earthquake or strong wind has been improved. Countermeasures are often used.

  For example, as shown in FIG. 3, a V-type brace (energy transmission member) 1 is installed in a frame surface T1 of a building T, and an oil damper or the like is installed on the V-type brace 1 and the frame (column member 2, beam member 3). A damping structure A configured by connecting the damping device 4 is widely used (see, for example, Patent Document 1 and Patent Document 2).

  When such a vibration control structure A is installed, if vibration energy acts on the building T and interlayer deformation occurs, the interlayer deformation (displacement, vibration energy) is transferred from the V-type brace 1 to the vibration control device 4. Is transmitted, and vibration energy is absorbed by the damping device 4. Thereby, the vibration energy which acted on the building T by the damping structure A is attenuated, and the response of the building T is reduced.

JP 2012-122228 A JP 2007-126830 A

  However, when the conventional vibration damping structure is applied to a seismic retrofit of a building, a brace or a vibration damping device is generally attached to a steel frame of an existing building by field welding. And since a brace and a vibration damping device are attached by field welding in this way, sparks are scattered or smoke is generated during the installation. Accordingly, in some cases, it has been necessary to limit the entry of users and residents at locations where the vibration control structure of the building is installed for a long period of time.

  In view of the above circumstances, the present invention is excellent in buildings by eliminating or reducing welding work and reducing restrictions on access to building users and residents even when applied to, for example, seismic repair of existing buildings. An object of the present invention is to provide a vibration control structure for a building that can impart seismic performance and a building having the same.

  In order to achieve the above object, the present invention provides the following means.

  A vibration damping structure for a building according to the present invention is installed in a frame surface surrounded by a column member and a beam member of the building, absorbs vibration energy acting on the building, and reduces the response of the building. A vibration damping structure for a building including a vibration damping device, wherein the V-type braces are arranged with a pair of spaced apart one ends connected to the column member via a crimping mechanism, and the vibration damping device. However, one end is connected to the column member via a crimping mechanism, and the other end is connected to the other end of the V-shaped brace at the intersection, and the crimping mechanism is connected to the V-shaped brace. A first crimping member connected to one end and one end of the vibration damping device and crimped to one side of the column member; and crimped to the other side opposite to the one side of the column member The second pressure-bonding member to be applied, the first pressure-bonding member and the first A crimping force application member connected to the crimping member and for crimping the first crimping member and the second crimping member to one side surface and the other side surface of the column member by tension force, respectively. .

  Moreover, in the vibration damping structure of the building of the present invention, it is provided with a connecting member that extends in the vertical direction along the pillar member and is disposed with a gap between the pillar member and the lateral direction, It is desirable that the first pressure-bonding members of the pressure-bonding mechanism provided on the upper side and the lower side of the pillar member are connected by the connecting member.

  Furthermore, in the vibration damping structure for a building according to the present invention, the column member is formed in a cross-sectional square shape, and an interposition member is disposed on each side in the width direction of one side surface of the column member. More preferably, the pressure-bonding member is pressure-bonded to one side surface of the column member via the interposed member.

  A building according to the present invention includes any one of the above-described vibration damping structures.

  In the building vibration damping structure of the present invention and the building equipped with the same, the pair of one end portions of the V-shaped brace and the one end of the vibration damping device are respectively bonded to the column members by a pressure bonding mechanism. Because of this, the force (vibration energy, interlayer displacement) applied to the building due to earthquakes or strong winds is transmitted to the vibration control device using the crimping force and frictional force of the crimping mechanism and the axial force of the V-type brace. Can be made.

  In this way, the force acting on the building can be absorbed and attenuated by transmitting to the damping device such as rotary inertia mass damper, oil damper, steel damper, etc. through the crimping mechanism and V-shaped brace. And the response of a building can be reduced effectively. Thereby, it becomes possible to improve the damping performance (seismic performance) of a building.

  In addition, since the vibration damping structure is configured such that the pair of one end portions of the V-shaped brace and the one end of the vibration damping device are respectively crimped and joined to the column member by the pressure bonding mechanism, the welding work is not performed at all ( A vibration control structure can be provided (with little or no), and there is less risk of fire and less noise, and it is possible to perform seismic retrofit work suitably.

  Therefore, according to the vibration control structure of a building of the present invention and a building equipped with the same, for example, even when applied to seismic retrofitting of an existing building, the restrictions on access to building users and residents are reduced. It is possible to give the building excellent earthquake resistance.

  Further, in the building vibration damping structure of the present invention and the building equipped with the same, the pair of one end portions of the V-shaped brace and the one end of the vibration damping device are respectively crimped and joined to the column member by a crimping mechanism, and the column member When the first pressure-bonding members of the upper and lower pressure-bonding mechanisms are connected by a connecting member to form a vibration damping structure, the upper and lower pressure-bonding mechanisms of the column member are concentrated in addition to the pressure-bonding mechanism and the V-shaped brace. The acting force is received by the connecting member, and by this connecting member, the force acting on the building due to an earthquake or a strong wind can be more reliably transmitted to the vibration damping device.

  As a result, in addition to the crimping mechanism and V-shaped brace, the force acting on the building can be absorbed and attenuated by transmitting to the vibration damping device such as rotary inertia mass damper, oil damper, steel damper, etc. through the connecting member. It becomes possible to reduce the response of the building and improve the vibration control performance of the building more reliably and effectively.

  Furthermore, in the vibration damping structure of a building according to the present invention and a building equipped with the same, the column member is formed in a square cross section, and through the interposed members respectively disposed at both ends in the width direction of one side surface of the column member. Because the first crimping member is crimped to one side of the column member, the force (vibration energy, interlayer displacement) acting on the building due to earthquakes, strong winds, etc. intensively from the corner side of the column member is the crimping force Further, it is possible to transmit the frictional force to the first pressure-bonding member, that is, the V-type brace, the connecting member, and the vibration damping device. As a result, the response of the building can be reduced more reliably and effectively, and the vibration control performance of the building can be improved.

It is a front view (side view) which shows the vibration damping structure of the building concerning one embodiment of the present invention, and a building provided with this. It is the X1-X1 arrow view figure of FIG. It is a front view (side view) which shows the vibration control structure of the conventional building.

  Hereinafter, with reference to FIG.1 and FIG.2, the vibration suppression structure of the building which concerns on one Embodiment of this invention, and a building provided with the same are demonstrated.

  As shown in FIG. 1, the vibration damping structure B of the present embodiment is formed on a frame surface T1 surrounded by a column member 2 and a beam member 3 (frame) of a multi-layered building T such as an office building or an apartment. It is installed to absorb and attenuate the seismic energy (vibration energy, interlayer displacement) that acts on the building T during an earthquake (or during strong winds), thereby reducing the response of the building T.

  The vibration damping structure B of the present embodiment includes a V-type brace 1 disposed by connecting a pair of spaced one end portions (upper end portions) 1a to a pair of column members 2 forming the frame surface T1. The mounting member 5 provided integrally with the other end (lower end) 1 b on the intersection point side of the V-shaped brace 1, the one ends 6 a and 7 a through the column member 2, and the other ends 6 b and 7 b through the mounting member 5. The vibration control devices 6 and 7 are respectively connected to the V-type brace 1 and arranged.

  Further, in the building vibration damping structure B of the present embodiment, the pair of one end portions 1a of the V-type brace 1 and the one ends 6a and 7a of the vibration damping devices 6 and 7 are respectively column members via the crimping mechanism 10. 2 is connected by crimping.

  As shown in FIGS. 1 and 2, the crimping mechanism 10 is connected to one end 1 a of the V-type brace 1 and one ends 6 a and 7 a of the vibration damping devices 6 and 7, and crimps to one side 2 a of the column member 2. The first pressure-bonding member 11 that is installed, the second pressure-bonding member 12 that is pressure-bonded to the other side surface 2b opposite to the one side surface 2a of the column member 2, and the first pressure-bonding member with tension applied 11 and the second crimping member 12, and a plurality of crimping force applying members 13 for crimping the first crimping member 11 and the second crimping member 12 to the one side surface 2a and the other side surface 2b of the column member 2 by tension. And.

  Moreover, the column member 2 of this embodiment is formed in the cross-sectional square shape, the interposition member 14 is arrange | positioned at the width direction S1 both ends of the one side surface 2a and the other side surface 2b of the column member 2, respectively, and 1st crimping | compression-bonding The member 11 and the second crimping member 12 are respectively crimped to the one side surface 2a and the other side surface 2b of the column member 2 via the interposed member 14, respectively.

  Furthermore, in the vibration damping structure B of the building of the present embodiment, the connection is provided extending in the vertical direction S2 along the column member 2 and provided with a gap t between the column member 2 and the lateral direction. The first crimping member 11 of the crimping mechanism 10 provided on the upper side and the lower side of the column member 2 is connected by a connecting member 15.

  Here, in this embodiment, for example, the column member 2 of the building T is formed in a cross-sectional square shape using a box-type welded column, a universal box column, or the like, and the beam member 3 uses H-shaped steel (I-shaped steel). Is formed. Further, the V-shaped brace 1, the mounting member 5, the first crimping member 11, the second crimping member 12, and the connecting member 15 of the crimping mechanism 10 are formed using steel frames. Further, a rod-shaped steel material is used for the interposing member 14, and a tie rod, a PC steel rod, or the like is used for the crimping force application member 13 of the crimping mechanism 10.

  On the other hand, the damping devices 6 and 7 are, for example, a rotary inertia mass damper, an oil damper, a steel damper, and the like, and the mounting member 5 attached to the other end (lower end) 1b of the V-type brace 1 and the left and right column members 2 and 2 respectively. At this time, the vibration damping device 6 including the rotary inertia mass damper and the additional spring is installed between the mounting member 5 and the one column member 2, and the vibration damping device 7 such as an oil damper is connected to the mounting member 5 and the other column. When installed between the members 2, that is, when the damping structure B is configured by arranging different types of damping devices 6 and 7 side by side, the performance and features of each damping device 6 and 7 are utilized effectively. The vibration performance can be improved.

  In the vibration control structure B (and the building T including the same) having the above-described configuration, vibration energy and external force are applied to the building T due to an earthquake, strong wind, or the like, and the beam member 3 or the column member 2 of the building T. Is generated, that is, the displacement and the interlayer displacement are transmitted to the vibration control devices 6 and 7 through the V-type brace 1 and the vibration energy is absorbed.

  At this time, in this embodiment, the pair of one end portions 1a of the V-shaped brace 1 and the one ends 6a and 7a of the vibration damping devices 6 and 7 are respectively connected by the crimping mechanisms 10 on the upper side and the lower side of the column member 2, respectively. When the interlayer displacement occurs, a force is applied so that the column member 2 is bent and deformed, and thereby, a force is concentrated on the upper side and the lower side where the crimping mechanism 10 of the column member 2 is fixed. Works.

  Further, in the building vibration damping structure B of the present embodiment, the first crimping members 11 of the pair of crimping mechanisms 10 fixed to the upper side and the lower side of the column member 2 are coupled by the coupling member 15. A force that acts intensively on the upper side and the lower side of the column member 2 is transmitted to the connecting member 15 as a crimping force or a frictional force acting between the crimping mechanism 10 and the column member 2.

  And through these crimping | compression-bonding mechanisms 10, the connection member 15, and the V-type brace 1, vibration energy is reliably transmitted to the damping devices 6 and 7, and it becomes possible to reduce the response of the building T.

  Therefore, in the building damping structure B of this embodiment and the building T including the same, first, the pair of one end portions 1a of the V-type brace 1 and the one ends 6a and 7a of the damping devices 6 and 7 are respectively connected. Since the vibration damping structure B is configured so as to be pressure bonded to the column member 2 by the pressure bonding mechanism 10, the force (vibration energy, interlayer displacement) acting on the building T due to an earthquake, strong wind, or the like is generated by the pressure bonding mechanism 10. It can be transmitted to the vibration control devices 6 and 7 by the crimping force and the frictional force and the axial force of the V-shaped brace 1.

  In this way, the force acting on the building T is absorbed and attenuated by transmitting it to the vibration damping devices 6 and 7 such as a rotary inertia mass damper, an oil damper, and a steel damper through the crimping mechanism 10 and the V-shaped brace 1. Therefore, the response of the building T can be reduced reliably and effectively. Thereby, it becomes possible to improve the damping performance (seismic performance) of the building T.

  Further, the vibration damping structure B is configured so that the pair of one end portions 1a of the V-shaped brace 1 and the one ends 6a and 7a of the vibration damping devices 6 and 7 are bonded to the column member 2 by the pressure bonding mechanism 10, respectively. Therefore, the vibration damping structure B can be provided without performing welding work (or hardly), and there is less risk of fire and less noise, making it possible to suitably perform earthquake-proof repair work. .

  Therefore, according to the vibration damping structure B of the present embodiment and the building T equipped with the same, for example, even if it is applied to seismic retrofit of an existing building, restrictions on access to users and residents of the building T This makes it possible to give the building T excellent earthquake resistance.

  Further, in the building damping structure B and the building T having the same according to the present embodiment, the pair of one end portions 1a of the V-type brace 1 and the one ends 6a and 7a of the damping devices 6 and 7 are respectively column members. 2 and the first crimping member 11 of the upper and lower crimping mechanisms 10 of the column member 2 are coupled by the coupling member 15 to form the damping structure B. In addition to the mechanism 10 and the V-shaped brace 1, the connecting member 15 receives a force that acts intensively on the crimping mechanism 10 on the upper and lower sides of the column member 2. With this connecting member 15, the building T is more reliably protected against earthquakes and strong winds. Can be transmitted to the vibration control devices 6 and 7.

  Thereby, in addition to the crimping mechanism 10 and the V-shaped brace 1, the force acting on the building T is transmitted through the connecting member 15 to the damping devices 6 and 7 such as a rotary inertia mass damper, an oil damper, and a steel damper. It can be absorbed and attenuated, and the response of the building T can be reduced more reliably and effectively, and the vibration damping performance of the building T can be improved.

  Furthermore, in the building damping structure B of this embodiment and the building T including the same, the column member 2 is formed in a square cross section, and both ends in the width direction S1 of one side surface 2a (other side surface 2b) of the column member 2 are formed. The first pressure-bonding member 11 (second pressure-bonding member 12) is pressure-bonded to the one side surface 2a (other side surface 2b) of the column member 2 via the interposed members 14 respectively disposed on the side, whereby the column member 2 The first pressure-bonding member 11 (second pressure-bonding member 12) and then the V-type brace using the force (vibration energy, inter-layer displacement) acting on the building T due to an earthquake, strong wind, etc. intensively from the corner side 1, the connecting member 15, and the vibration control devices 6 and 7 can be transmitted. As a result, the response of the building T can be reduced more reliably and effectively, and the vibration damping performance of the building T can be improved.

  As mentioned above, although one embodiment of the vibration damping structure of the building which concerns on this invention, and a building provided with this was described, this invention is not limited to said one embodiment, In the range which does not deviate from the meaning, it is appropriate. It can be changed.

1 V-type brace 1a One end (upper end)
1b The other end (lower end)
2 Column member 2a One side 2b Other side 3 Beam member 4 Damping device 5 Mounting member 6 Damping device 6a One end 6b Other end 7 Damping device 7a One end 7b Other end 10 Crimping mechanism 11 First crimping member 12 Second crimping member 13 Crimping force applying member 14 Interposing member 15 Connecting member A Conventional vibration control structure B Building vibration control structure S1 Horizontal direction S2 Vertical direction T Building T1 Construction surface

Claims (4)

Damping a building with a V-type brace and damping device that is installed in a frame surrounded by pillars and beam members of the building and absorbs vibration energy acting on the building to reduce the response of the building Structure,
The V-shaped brace is disposed with a pair of spaced one ends connected to the column member via a crimping mechanism,
The vibration damping device is disposed with one end connected to the column member via a crimping mechanism and the other end connected to the other end portion on the intersection side of the V-shaped brace,
The crimping mechanism is connected to one end of the V-shaped brace and one end of the vibration damping device, and is crimped and installed on one side surface of the pillar member;
A second pressure-bonding member installed by being crimped to the other side opposite to the one side of the column member;
It is connected to the first pressure-bonding member and the second pressure-bonding member in a state where a tension force is applied, and the first pressure-bonding member and the second pressure-bonding member are respectively crimped to one side surface and the other side surface of the column member by the tension force. A vibration-damping structure for a building, comprising a pressure-bonding force applying member. In the building damping structure according to claim 1,
A connecting member that extends in the vertical direction along the pillar member and is disposed with a gap between the pillar member and the lateral direction,
A vibration damping structure for a building, characterized in that the first pressure-bonding members of the pressure-bonding mechanism respectively provided on the upper side and the lower side of the column member are connected by the connecting member. In the building damping structure according to claim 1 or 2,
The column member is formed in a cross-sectional square shape,
An interposed member is disposed on each side in the width direction of one side surface of the column member, and the first crimping member is crimped to one side surface of the column member via the interposed member. Building damping structure.   A building comprising the vibration-damping structure for a building according to any one of claims 1 to 3.

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