WO2009113277A1 - Vibration control device installation method for existing structures and vibration control device used in said method - Google Patents

Vibration control device installation method for existing structures and vibration control device used in said method Download PDF

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Publication number
WO2009113277A1
WO2009113277A1 PCT/JP2009/000990 JP2009000990W WO2009113277A1 WO 2009113277 A1 WO2009113277 A1 WO 2009113277A1 JP 2009000990 W JP2009000990 W JP 2009000990W WO 2009113277 A1 WO2009113277 A1 WO 2009113277A1
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WIPO (PCT)
Prior art keywords
damping device
steel frame
mortar
movable mass
existing structure
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PCT/JP2009/000990
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French (fr)
Japanese (ja)
Inventor
風間睦広
早野哲央
今関正典
白木博文
山内一徳
沼澤祐武
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株式会社Ihi
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Application filed by 株式会社Ihi filed Critical 株式会社Ihi
Publication of WO2009113277A1 publication Critical patent/WO2009113277A1/en

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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00Working measures on existing buildings
    • E04G23/02Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/02Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
    • E04H9/021Bearing, supporting or connecting constructions specially adapted for such buildings
    • E04H9/0235Anti-seismic devices with hydraulic or pneumatic damping

Definitions

  • the present invention relates to a vibration damping device installation method for an existing structure used for installing a vibration damping device on an existing ground structure such as an existing building, and a vibration damping device used in the method.
  • One of the damping devices that have been proposed as a damping device to quickly attenuate the amplitude and vibration when a ground structure such as a building is shaken by a wind load or an earthquake is a mass damper type damping device. There is a shaker.
  • the mass damper type vibration damping device includes a movable mass (vibrating body) having a required mass on the top of the above various ground structures so as to be capable of reciprocating along a direction in which vibration damping is desired.
  • the movable mass is reciprocated according to the vibration of the structure to be damped, so that the structure to be damped is controlled, and the reciprocating movement of the movable mass is controlled by the structure to be damped.
  • the passive type (passive type) that is designed to perform naturally using the mechanical balance with the object
  • the active type active type
  • the mass damper type vibration damping device described above has a two-stage upper and lower damping structure on the upper part of the structure to be damped so that the vibration in any direction of the structure to be damped can be suppressed by a single unit.
  • the mass damper type vibration damping device when the mass damper type vibration damping device is installed in a structure to be damped, such as a building, normally, when a building to be damped is newly constructed, the building is constructed at the building construction site.
  • the mass damper type vibration damping device is installed in the work.
  • the building construction site when building a building, the building itself is made up of a heavy weight. Therefore, a crane that can suspend a building of about 10 to 15 tons in the entire range of the building is generally provided at the building construction site. Is provided. For this reason, when installing the mass damper type vibration control device in a new building, when the building construction crane is vacant in the building construction schedule, the building construction crane is used. Thus, the mass damper type vibration damping device is carried into the installation site in a state where it is appropriately divided so as to fit the weight according to the lifting capacity of the building body construction crane, and is assembled on site.
  • the mass of the movable mass is normally set to about 0.5% to 1% of the generalized mass of the structure to be damped in any of the active and passive mass damper type damping devices. Therefore, although depending on the scale of the building, the mass of the movable mass in the mass damper type damping device is several tens of tons.
  • the conventional mass damper type vibration damping device is generally made entirely of steel.
  • a movable mass made of steel is used.
  • the mass damper type damping device is more than the case where the components of the mass damper type damping device are introduced to the installation site using a crane for building the main body at the construction site when the building is newly constructed. It is necessary to divide into lightweight components. In particular, since the movable mass has a mass of several tens of tons, it needs to be divided into a large number of blocks.
  • the present invention provides a method for dividing a movable mass so as to be within the range of the weight limit of a suspended load of a mobile crane when a mass damper type damping device is installed later on an existing building.
  • a vibration damping device installation method for an existing structure and a vibration damping device used in the method so that the man-hours required for the method can be reduced.
  • the present invention provides a box-structured steel frame that opens at the upper end side at the site of installation of the damping device at the upper part of the existing structure so as to be able to reciprocate in the shaking direction of the existing structure. Then, the steel frame is filled with mortar or concrete, and a movable mass composed of the steel frame and the mortar or concrete filled in the steel frame is formed on site, and the vibration control device is installed on the site.
  • a damping device installation method for an existing structure is provided in which a mass damper type damping device is provided in which the movable mass is provided so as to be able to reciprocate in the shaking direction of the existing structure.
  • the present invention provides a steel frame having a box structure having an opening at the upper end side at an installation site of an upper part of an existing structure so that the steel frame can be reciprocated in an arbitrary direction within a horizontal plane, and then the steel frame.
  • Mortar or concrete is filled in, and a movable mass composed of the steel frame and the mortar or concrete filled in the steel frame is formed on site, and the movable mass is placed in a horizontal plane at the vibration control device installation site.
  • a damping device installation method for an existing structure is provided in which a mass damper type damping device provided so as to be capable of reciprocating in any direction is provided.
  • steel having a weight within the range of the weight limit of the suspended load of the mobile crane used for loading the structural members of the vibration damping device on the steel frame provided at the installation site of the vibration damping device of the existing structure After storing the weight made of steel, the steel frame is filled with mortar or concrete to form a movable mass.
  • the steel frame provided at the installation site of the vibration damping device for the existing structure is filled with the high specific gravity block and mortar or concrete simultaneously or in the required order to form a movable mass.
  • barite or slag is used as the high specific gravity lump filled in the steel frame provided at the installation site of the vibration damping device for the existing structure.
  • the present invention provides a vibration damping device that performs vibration control of a structure to be controlled by reciprocating a movable mass according to the vibration of the structure to be controlled, and has a box structure with an upper end opened.
  • An empty steel frame is provided on the vibration control device installation site above the existing structure, which is the structure to be damped, so as to be able to reciprocate in the shaking direction of the existing structure.
  • the vibration damping device has a configuration in which a movable mass is formed by filling concrete.
  • the present invention also relates to a box having an upper end opened in a damping device configured to perform damping of the structure to be controlled by reciprocating the movable mass in response to the vibration of the structure to be controlled.
  • An empty steel frame with a structure is provided on the installation site of the vibration damping device on the upper part of the existing structure to be dampened so that it can reciprocate in any direction in the horizontal plane. Or it is set as the damping device which has the structure formed by filling concrete and forming a movable mass.
  • the movable mass is within the range of the weight limit of the suspended load of the mobile crane used for loading the structural members of the vibration damping device into the empty steel frame provided in the existing structure. A heavy steel weight is stored, and the steel frame is filled with mortar or concrete.
  • the movable mass is configured by filling an empty steel frame provided in an existing structure with a block having a high specific gravity and mortar or concrete.
  • a high specific gravity lump filled in an empty steel frame provided in an existing structure is formed as barite or slag.
  • a steel frame having a box structure with an opening at the upper end side is provided at the installation site of the vibration damping device above the existing structure so as to be able to reciprocate in the shaking direction of the existing structure.
  • concrete is filled, and a movable mass made of the steel frame and mortar or concrete filled in the steel frame is formed on-site, and the movable mass is installed on the vibration control device installation site.
  • the vibration damping device installation method for an existing structure which is provided with a mass damper type vibration damping device that can be reciprocated in the direction of vibration, and a movable mass according to the vibration of the structure to be controlled
  • a mass damper type vibration damping device that can be reciprocated in the direction of vibration, and a movable mass according to the vibration of the structure to be controlled
  • an empty steel frame having a box structure with an open upper end is used as the structure to be controlled.
  • a steel frame with a box structure with an opening at the upper end side is provided at the vibration control device installation site so as to be able to reciprocate in any direction in a horizontal plane, and then the steel frame is filled with mortar or concrete, A movable mass made of mortar or concrete filled in a frame and the steel frame is formed on-site, and the movable mass is provided on the vibration control device installation site so as to be capable of reciprocating in any direction within a horizontal plane.
  • an empty steel frame with a box structure with an open upper end is reciprocated in an arbitrary direction in the horizontal plane to the installation site of the vibration damping device on the upper part of the existing structure to be the vibration damping target structure.
  • the vibration control device is configured to be movable and further has a configuration in which the steel frame is filled with mortar or concrete to form a movable mass, the vibration control device is installed at the installation site of the vibration control device of the existing structure.
  • the steel frame can be filled with mortar or concrete and a movable mass with an integral structure can be formed without requiring any welding operation, the entire steel block is welded together.
  • the number of steps required to manufacture the movable mass as an integral object at the vibration control device installation site can be greatly reduced. Therefore, the labor required for repair painting of the parts that can be burned by welding, which is required when welding movable steel blocks to form a movable mass, can greatly reduce man-hours. Furthermore, the effect that the maintenance work of this repair painting part can be made unnecessary can also be expected.
  • the steel frame provided at the installation site of the vibration damping device for the existing structure is made of steel with a weight that is within the range of the weight limit of the suspended load of the mobile crane used for loading the components of the vibration damping device. After the weight is stored, the average mass per unit volume of the movable mass can be increased by filling the steel frame with mortar or concrete to form the movable mass. This can be advantageous in reducing the volume of the mass.
  • the steel frame provided at the installation site of the vibration damping device for the existing structure is filled with a high specific gravity block and mortar or concrete simultaneously or in the required order to form a movable mass. In this way, the average mass per unit volume of the movable mass can be increased, which can be advantageous for reducing the volume of the movable mass.
  • barite or slag as a high specific gravity lump filled in the steel frame provided at the installation site of the vibration control device for the existing structure, A movable mass obtained by increasing the average mass can be easily realized.
  • FIG. 2 is a schematic plan view of the vibration damping device of FIG. 1.
  • FIG. 4 shows another Example of the movable mass of the damping device used for implementation of the damping device installation method for existing structures of this invention as another form of the Example of this invention.
  • FIG. 1 to FIG. 5 show an embodiment of a vibration damping device used in the method for installing a vibration damping device for an existing structure according to the present invention.
  • a fixed dimension extending in one axial direction (hereinafter referred to as the x-axis direction) of two axial directions orthogonal to each other in a horizontal plane.
  • the frame 2 is attached in a state where an anti-vibration member (not shown) such as an anti-vibration rubber is interposed.
  • an anti-vibration member such as an anti-vibration rubber
  • a lower linear guide 3 extending in the x-axis direction, which is the longitudinal direction of the fixed frame 2
  • a lower actuator 4 configured so that the movable portion 4a can be reciprocated along the x-axis direction.
  • a movable frame 5 extending in a required dimension in the other axial direction (hereinafter referred to as y-axis direction) of two axial directions orthogonal to each other in the horizontal plane is attached.
  • the movable portion 4 a of the lower actuator 4 is connected to a required portion of the movable frame 5.
  • an upper linear guide 6 extending in the y-axis direction, which is the longitudinal direction of the movable frame 5, and a nut member 7a as a movable part are reciprocally driven along the y-axis direction.
  • a certain upper actuator 7 is provided.
  • a box-shaped steel frame 9 having an open upper end is attached to the upper side of the slider 6a of the upper linear guide 6, and a nut member 7a as a movable part of the upper actuator 7 is attached to a required portion of the steel frame 9.
  • the steel frame 9 is filled with non-shrinkable mortar 10, and a mass damper type existing structure installation provided with a movable mass 8 composed of the steel frame 9 and the mortar 10 is used.
  • the damping device I is configured.
  • lower linear guides 3 extending in the x-axis direction are respectively installed at both ends in the width direction orthogonal to the longitudinal direction (x-axis direction).
  • Each of the lower linear guides 3 includes two sliders 3a.
  • the lower actuator 4 includes a drive motor 4b, a screw shaft 4c connected to the output shaft thereof, and a nut member 4a serving as the movable portion 4a screwed to the screw shaft 4c.
  • the nut member 4a can be reciprocated along the axial direction of the screw shaft 4c by forward and reverse rotation of the screw shaft 4c by 4b.
  • Two lower actuators 4 arranged along the x-axis direction are installed in parallel at the center in the width direction.
  • the movable frame 5 is placed on the upper side of the two sliders 3a of each lower linear guide 3 provided on the fixed frame 2 and the nut member 4a of each lower actuator 4, and the movable frame
  • the respective sliders 3a and the respective nut members 4a are connected to corresponding portions on the lower surface of 5 by bolting.
  • the movable frame 5 can be reciprocated along the x-axis direction on the fixed frame 2 by the lower actuator 4.
  • upper linear guides 6 extending in the y-axis direction are respectively installed at both ends in the width direction orthogonal to the longitudinal direction (y-axis direction).
  • Each of the upper linear guides 6 includes two sliders 6a.
  • the upper actuator 7 is a ball screw type actuator having a drive motor 7b, a screw shaft 7c, and a nut member 7a as a movable part.
  • the upper actuator 7 is installed so as to extend along the y-axis direction.
  • each slider 6a of each upper linear guide 6 provided on the movable frame 5 On the upper side of each slider 6a of each upper linear guide 6 provided on the movable frame 5, brackets 11 provided on the four corners of the lower surface of the steel frame 9 of the movable mass 8 are placed and bolted. It is connected.
  • the upper end of the nut member 7a of the upper actuator 7 on the movable frame 5 is connected to the lower surface of the central portion of the steel frame 9 by bolting.
  • the upper actuator 7 can reciprocate the steel frame 9 of the movable mass 8 along the y-axis direction on the movable frame 5.
  • the movable mass 8 is the movable mass 8 in the mass damper type damping device I that controls the damping target structure by the sum of the mass of the steel frame 9 and the mass of the mortar 10 filled therein.
  • the specific gravity is larger than that of the mortar 10 inside the steel frame 9.
  • the movable mass 8 having a larger average mass per unit volume may be formed by filling the mortar 10 in a state in which the steel weight 12 is stored in advance.
  • the steel frame 9 is provided with a nut member 14 for screwing the weight temporary fixing bolt 13 in advance at a required portion of the inner bottom portion.
  • the spacer 15 rising to a position slightly higher than the upper end of the nut member 14 is provided on the inner bottom surface.
  • a space where the mortar 10 circulates like a through hole 16 is provided at a required portion of the spacer 15.
  • the through hole 16 may also be used as the suspension ring of the steel frame 9.
  • a steel weight 12 having a weight within a weight limit of a suspended load of a mobile crane such as a truck crane for performing a loading operation of a component member is prepared in advance, and a spacer at an inner central portion of the steel frame 9 is prepared.
  • a predetermined number of the weights 12, for example, six, are placed on 15, and a weight temporary fixing bolt 13 having a through-hole provided at a required position of each weight 12 inserted from above is attached to the steel.
  • the mortar 10 is filled so that the weights 12 are buried inside the steel frame 9 in a state where the weights 12 are temporarily fixed by being screwed to the nut members 14 on the inner bottom portion of the frame making 9. Movable It is so as to form a scan 8. Further, in order to further increase the mass of the movable mass 8, a steel weight 12a is further accommodated in a position where it does not interfere with the spacer 15 and the nut member provided on the inner bottom portion of the steel frame 9. It is good also as composition which becomes.
  • Reference numeral 17 denotes a stopper provided inward at both ends in the longitudinal direction of the fixed frame 2.
  • the stoppers 17 can prevent the amplitude of the movable frame 5 from being excessive on the fixed frame 2.
  • Reference numeral 18 denotes a stopper provided inward at both ends in the longitudinal direction of the movable frame 5, so that the respective stoppers 18 can prevent a possibility that the amplitude of the movable mass 8 becomes excessive on the movable frame 5. It is.
  • vibration damping device I for installing an existing structure having the above-described configuration is installed on the upper part of the existing structure, for example, on the roof of an existing building 19 as shown in FIG. Is divided into components having a weight within the weight limit of a suspended load of a mobile crane such as a truck crane used for performing the loading operation.
  • each of the four basic frames 1, the fixed frame 2 to which the lower linear guide 3 and the lower actuator 4 are attached, and the movable frame 5 to which the upper linear guide 6 and the upper actuator 7 are attached are further divided.
  • the empty steel frame 9 before filling the mortar 10 and the weights 12 and 12a are separated.
  • the existing building 19 Next, on the roof of the existing building 19, first, using the chain block attached to a temporary frame (not shown) provided above the place where the vibration control device is installed, and a transport device such as a hand forklift, first, the existing building 19
  • the four foundation frames 1 were installed at the vibration damping device installation position on the rooftop of the roof, and the height dimensions of the foundation frames 1 were adjusted so that the upper end positions of all the foundation frames 1 were aligned in the horizontal direction.
  • the fixed frame 2 is mounted on each base frame 1.
  • the movable frame is placed above the slider 3a of each lower linear guide 3 and the nut member 7a of the lower actuator 4 installed on the fixed frame 2. 5 is mounted and bolted to connect.
  • the empty steel frame 9 is placed on the slider 6a of each upper linear guide 6 installed on the movable frame 2 and the nut member 7a of the upper actuator 7 and is bolted and connected. To do.
  • the loading of the weights 12 and 12a as shown in FIG. 4 into the steel frame 9 is started, and the weights 12 and 12a are placed in the steel frame 9 Place it at a predetermined location and temporarily fix it.
  • the inside of the steel frame 9 is filled with mortar 10, and the weights 12 and 12a disposed in the steel frame 9 are buried in the mortar 10, and in this state, the steel frame By solidifying the mortar 10 filled in 9 to form the movable mass 8, the installation of the vibration damping device I in the existing building 19 is completed.
  • FIG. 5 shows a state in which two vibration damping devices I are installed diagonally on the roof of the existing building 19, but in this way, a plurality of vibration damping devices I are provided. Even if the installation is performed, the components of the vibration damping device I for two units, which are set to have a weight within the weight limit of the suspended load of the mobile crane in advance, using a mobile crane (not shown) The unit is put into the roof of the existing building 19 at a time, and then the damping device I is assembled and installed one by one at the predetermined installation location of each damping device I by the same procedure as described above. You can do it.
  • the movable mass 8 of the vibration damping device I is filled into the steel frame 9 and the inside thereof.
  • the configuration of the damping device I is configured so that the movable mass 8 that is required to have a mass as large as several tens of tons in the damping device I is provided to the existing building 19 by the configuration including the mortar 10 and the weights 12 and 12a.
  • the movable crane has the same mass as the movable mass, which is made of steel as a whole, and is divided so that the weight is within the weight limit of the suspended load of the mobile crane (not shown) used for loading the members.
  • the steel blocks are welded to form a movable mass as described above, the steel blocks are welded to each other even if the individual steel blocks have been subjected to rust prevention treatment in advance. After the work, it is necessary to repair and weld the welded part as a rust prevention treatment, and it is necessary to fill the gaps between the blocks with an iron putty or the like.
  • the installation method and the vibration control device used in the method after the movable mass 8 is manufactured as a single piece at the vibration control device installation site, these operations are not required at all. The number of man-hours can be reduced. In addition, an effect that the maintenance work of the repair coating portion can be eliminated can be expected.
  • the movable mass 8 can be driven in two directions in the x-axis direction and the y-axis direction in the horizontal plane at two diagonal positions on the roof of the existing building 19.
  • the vibration damping device I When the vibration damping device I is installed, the vibration of the existing building 19 in all directions within the horizontal plane can be quickly attenuated, and in addition, the twisting direction of the existing building 19 is twisted. It is possible to effectively attenuate the vibration acting on the.
  • FIGS. 1 to 5 show another embodiment of the movable mass 8 of the vibration damping device I having the same configuration as the embodiment of FIGS. 1 to 5 as another embodiment of the present invention.
  • the movable mass 8 is replaced with a steel frame 9, a mortar 10 filled inside thereof, and weights 12 and 12 a.
  • the barite 20 is a barium sulfate crystal and has a specific gravity of about 4.1, which is higher than that of general concrete aggregate. Therefore, what mixed the said barite 20 and the mortar 10 can obtain large mass with the same volume compared with the simple substance of the mortar 10, and general concrete.
  • the movable mass 8 having a predetermined mass required for the vibration damping device I of the present invention is attached to the steel frame 9 with the barite 20 and the mortar 10.
  • the volume of the movable mass 8 having the predetermined mass can be reduced as compared with the case where only the mortar 10 is filled in the steel frame 9. is there.
  • the movable mass 8 of the vibration damping device I is configured by the steel frame 9, the mortar 10 filled in the inside thereof, and the barite 20.
  • the movable mass 8 that is required to have a mass as large as several tens of tons in the vibration device I is used for loading the components of the vibration control device I into the existing building 19.
  • the number of on-site loading of the constituent members of the movable mass 8 to the existing building 19 using the above-described mobile crane (not shown) can be reduced, and the on-site loading work of the constituent members of the movable mass 8 can be reduced. Can be made.
  • the present embodiment can provide the same effects as those of the previous embodiment.
  • the barite 20 packed in the steel frame 9 of the present embodiment is for giving a predetermined mass to the movable mass 8 by utilizing the high specific gravity, and the shape of the movable mass 8 Is held by the steel frame 9, the mixture of the barite 20 and the mortar 10 filled in the steel frame 9 is not required to have strength.
  • the gap between the barite 20 filled in the frame 9 is filled so that the inner surface of the steel frame 9 is not exposed to wind and rain, and the position of the barite 20 can be fixed. You just have to. Therefore, the distribution of the barite 20 and the mortar 10 in the steel frame 9 does not need to be uniform, and the barite 20 is unevenly distributed near the bottom of the steel frame 9 due to the specific gravity difference with the mortar 10.
  • the steel frame 9 may be filled with the barite 20 and the mortar 10, respectively, and heavy concrete using the barite 20 as an aggregate is manufactured. There is no need for any uniform mixing operation of barite 20 and mortar 10 as in the case, or any treatment or additive for preventing uneven distribution due to the difference in specific gravity between barite 20 and mortar 10. Therefore, handling of the barite 20 can be facilitated, and the movable mass 8 in which the volume is reduced can be easily formed. Further, the barite 20 can be used as it is without any processing, and the barite 20 charged in the steel frame 9 is fixed in advance before filling the mortar 10. Since it can be made unnecessary, it is possible to reduce the labor required for forming the movable mass 8.
  • the barite 20 is less expensive than iron and does not require processing costs, it can be expected to reduce the cost of the vibration damping device I for installing the existing structure of this embodiment.
  • the steel frame 9 is filled with the barite 20 and then filled with the mortar 10, but as shown in FIG. After injecting a required amount of mortar 10 into the steel frame 9 in advance, as shown by the two-dot chain line in FIG. May be buried in the mortar 10 in the steel frame 9 based on the specific gravity difference with the mortar 10. Furthermore, the injection of the mortar 10 into the steel frame 9 and the charging of the barite 20 are alternately performed in a plurality of times, whereby the barite 20 and the mortar 10 are put into the steel frame 9. You may make it fill.
  • the movable mass 8 of the vibration damping device I for installing an existing structure can be easily formed in a state where the volume is reduced. Is possible.
  • steel frame 9 may be filled simultaneously with the barite 20 and the mortar 10 premixed.
  • this invention is not limited only to the said Example, As shown by the dashed-two dotted line in FIG.1 and FIG.3, the additional mass 21 is mounted in the movable frame 5 of the damping device I, and y In the axial direction, the mass of the movable mass 8 is reciprocated on the movable frame 5, while in the x-axis direction, the mass of the movable mass 8 and the mass of the additional mass 21 mounted on the movable frame 5. It is also possible to make it possible to reciprocate the mass of the sum.
  • the existing building 19 is a structure that has a large planar aspect ratio and is likely to swing in a direction perpendicular to the longitudinal direction as compared to the longitudinal direction of the planar shape
  • 19 is installed in the longitudinal direction of the planar shape of the existing building 19 by installing the damping device I on the existing building 19 so that the y-axis direction of the damping device I is along the longitudinal direction of the planar shape. It is possible to efficiently attenuate the vibration in the orthogonal direction.
  • the additional mass 21 is mounted on the movable frame 5
  • the mass of the additional mass 21 is relatively small so that the weight does not exceed the weight limit of the suspended load of the mobile crane (not shown) used for loading the components of the vibration damping device I into the existing building 19.
  • the additional mass 21 is formed by welding steel blocks having a weight within the weight limit of the suspended load of the mobile crane (not shown) by welding. do it.
  • the number of weights 12 and 12a stored in the steel frame 9 of the movable mass 8 and buried in the mortar 10 is appropriately increased or decreased according to the mass required for the movable mass 8.
  • the weights 12 and 12a stored in the steel frame 9 do not necessarily have to be buried in the mortar 10.
  • the amount of barite 20 stored in the steel frame 9 of the movable mass 8 and buried in the mortar 10 depends on the mass required for the movable mass 8. You may increase / decrease suitably. A part of barite 20 packed in the steel frame 9 may be exposed as irregularities on the surface of the mortar 10. Furthermore, when it is desired to increase the filling rate of barite 20 in the steel frame 9, the barite 20 may be crushed to some extent to reduce the particle size. Furthermore, if it is a lump with a higher specific gravity than ordinary concrete aggregate, a lump with a high specific gravity other than barite 20 such as slag produced in an ash melting furnace is packed in the steel frame 9. May be used.
  • the movable mass 8 accommodates the weights 12 and 12a in the embodiment of FIGS. 1 to 5 and the barite 20 in the embodiments of FIGS. It is good also as a structure filled and formed. Further, the movable mass 8 may be configured such that the steel frame 9 is filled with only the mortar 10. Furthermore, the movable mass 8 may be formed by using concrete instead of the mortar 10 as a material filled in the steel frame 9.
  • the foundation frame 1 is omitted and the vibration control device such as anti-vibration rubber is fixed at the installation location of the vibration control device.
  • the frame 2 may be directly installed.
  • the lower actuator 4 employs any type of actuator other than a ball screw type actuator, such as a pinion rack type actuator having a rack as a movable part, and an electric or hydraulic cylinder type actuator having an operating rod as a movable part. May be.
  • the upper actuator 7 may employ any type of actuator other than the ball screw type actuator, similar to the lower actuator 4.
  • the vibration damping device I includes a predetermined spring element and a replacement between the fixed frame 2 and the movable frame 5 and between the movable frame 5 and the movable mass 8 in place of the lower actuator 4 and the upper actuator 7 respectively. It may be a passive type vibration damping device with a damper element interposed between them, and the lower actuator 4 between the fixed frame 2 and the movable frame 5, and between the movable frame 5 and the movable mass 8, respectively. In addition to the upper actuator 7, a hybrid type vibration damping device in which necessary spring elements and damper elements are interposed may be used.
  • the vibration damping device I may be installed as a vibration damping device of a type in which the movable mass 8 is reciprocated only in one axial direction so that the reciprocating movement is directed in an arbitrary direction in the horizontal plane.
  • the present invention can be applied to any structure other than the existing building 19 as long as it is an existing structure, and various modifications can be made without departing from the scope of the present invention.
  • a mass damper type vibration damping device when a mass damper type vibration damping device is installed later on a structure to be damped such as an existing building, the number of components is reduced, and the construction work of movable mass components by a mobile crane is performed on-site. This can be easily applied to reduce the man-hours for manufacturing a movable mass of an integrated object at the site where the vibration damping device is installed.

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  • Working Measures On Existing Buildindgs (AREA)

Abstract

On-site labor for installing vibration control device structural members using mobile cranes is decreased. A mobile crane is used to install a base frame (1), a stationary frame (2), a movable frame (5), a hollow steel frame (9), and steel weights in a subdivided state onto a vibration control device installation site in an existing building (19). The steel frame (9) is installed on the roof of the existing building (19) so that it is able to move back and forth along two perpendicular axes within a horizontal plane by means of the base frame (1), stationary frame (2), and movable frame (5). The weights are housed in the steel frame (9), which is then filled with mortar (10) to fabricate on-site a movable mass (8) of requisite mass comprising the steel frame (9), the weights, and the mortar (10), whereby a vibration control device (I) is formed that is designed so that said movable mass (8) is able to move back and forth along two perpendicular axes within a horizontal plane.

Description

既設構造物用制振装置設置方法、及び、該方法に用いる制振装置Vibration damping device installation method for existing structure and vibration damping device used in the method
 本発明は、既設のビル等、既設の地上構造物に制振装置を設置するために用いる既設構造物用制振装置設置方法、及び、該方法に用いる制振装置に関するものである。 The present invention relates to a vibration damping device installation method for an existing structure used for installing a vibration damping device on an existing ground structure such as an existing building, and a vibration damping device used in the method.
 ビル等の地上構造物が風荷重や地震により揺れを生じたときに、その振幅、振動を速やかに減衰させるための制振装置として従来提案されているものの一つに、マス・ダンパ形式の制振装置がある。 One of the damping devices that have been proposed as a damping device to quickly attenuate the amplitude and vibration when a ground structure such as a building is shaken by a wind load or an earthquake is a mass damper type damping device. There is a shaker.
 上記マス・ダンパ形式の制振装置は、上記各種地上構造物の上部に、所要質量の可動マス(振動体)を、制振を望む方向に沿って往復移動可能に設けてなる構成として、該可動マスを、制振対象構造物の揺れに応じて往復移動させることにより該制振対象構造物の制振を行うようにしてあるものであり、上記可動マスの往復移動を、制振対象構造物との力学的バランスを利用して自然に行わせるようにしてある受動型(パッシブ式)のものと、外部からの供給エネルギーを利用して可動マスを往復駆動する能動型(アクティブ式)のものがある。更には、上記受動型と能動形を組み合わせたハイブリッド型のものも開発されてきている。 The mass damper type vibration damping device includes a movable mass (vibrating body) having a required mass on the top of the above various ground structures so as to be capable of reciprocating along a direction in which vibration damping is desired. The movable mass is reciprocated according to the vibration of the structure to be damped, so that the structure to be damped is controlled, and the reciprocating movement of the movable mass is controlled by the structure to be damped. The passive type (passive type) that is designed to perform naturally using the mechanical balance with the object and the active type (active type) that reciprocates the movable mass using externally supplied energy There is something. Furthermore, a hybrid type combining the passive type and the active type has been developed.
 更に、上記マス・ダンパ形式の制振装置としては、一台で制振対象構造物のいかなる方位の振動も抑制できるようにするために、制振対象構造物の上部に、上下二段の制振体を、互いに直交する方向に往復移動可能に備えると共に、上記下部と上部の各制振体に、駆動用モータと、ボールねじやラック・ピニオン等を用いた動力伝達機構をそれぞれ備えた構成の制振装置を、制振対象構造物上に設置し、制振対象構造物に、水平面内で直交する2つの軸方向のうちの一方の軸方向の振動が発生した場合は、90度位相をずらして下部制振体を該方向に往復移動させ、上記水平面内で直交する2つの軸方向のうちの他方の軸方向の振動が発生した場合は、90度位相をずらして上部制振体を往復移動させることにより、制振対象構造物の2軸方向の振動を抑制させるようにしたものも提案されている(たとえば、特許文献1参照)。 Furthermore, the mass damper type vibration damping device described above has a two-stage upper and lower damping structure on the upper part of the structure to be damped so that the vibration in any direction of the structure to be damped can be suppressed by a single unit. A structure in which a vibrating body is reciprocally movable in a direction orthogonal to each other, and each of the above-described lower and upper damping bodies is provided with a driving motor and a power transmission mechanism using a ball screw, a rack and a pinion, etc. If the vibration control device is installed on the structure to be controlled, and vibration in one of the two axial directions orthogonal to each other in the horizontal plane is generated in the structure to be controlled, the phase is 90 degrees. If the vibration in the other of the two axial directions orthogonal to each other in the horizontal plane is generated, the upper vibration damping body is shifted by 90 degrees. The two axes of the structure subject to vibration suppression Even those so as to suppress the vibration of the direction has been proposed (e.g., see Patent Document 1).
 ところで、上記マス・ダンパ形式の制振装置をビル等の制振対象構造物に設置する場合、通常は、制振対象とするビルを新設する際に、ビル建設現場にて、該ビルの建設作業に組み込んで上記マス・ダンパ形式の制振装置の設置作業を行うようにしてある。 By the way, when the mass damper type vibration damping device is installed in a structure to be damped, such as a building, normally, when a building to be damped is newly constructed, the building is constructed at the building construction site. The mass damper type vibration damping device is installed in the work.
 すなわち、ビルを建設する場合、ビルそのものが大きな重量のもので構成されているため、ビルの建設現場には、一般に、10~15トン程度のものをビルの全範囲に吊り込めるようなクレーンが備えられている。このため、新設のビルに上記マス・ダンパ形式の制振装置を設置する場合は、該ビルの建築スケジュールで上記ビル本体の工事用クレーンが空いているときに、該ビル本体工事用クレーンを用いて、上記マス・ダンパ形式の制振装置を、上記ビル本体工事用クレーンの吊上げ能力に応じた重量に収まるように適宜分割した状態で据付け現場へ搬入し、現地で組み立てるようにしていた。 In other words, when building a building, the building itself is made up of a heavy weight. Therefore, a crane that can suspend a building of about 10 to 15 tons in the entire range of the building is generally provided at the building construction site. Is provided. For this reason, when installing the mass damper type vibration control device in a new building, when the building construction crane is vacant in the building construction schedule, the building construction crane is used. Thus, the mass damper type vibration damping device is carried into the installation site in a state where it is appropriately divided so as to fit the weight according to the lifting capacity of the building body construction crane, and is assembled on site.
 ところで、上記アクティブ方式、パッシブ方式のいずれのマス・ダンパ形式の制振装置においても、通常、可動マスの質量は、制振対象構造物の一般化質量の0.5%~1%程度に設定するようにしてあるため、ビルの規模にもよるが、上記マス・ダンパ形式の制振装置における可動マスの質量は数十トンとなる。 By the way, the mass of the movable mass is normally set to about 0.5% to 1% of the generalized mass of the structure to be damped in any of the active and passive mass damper type damping devices. Therefore, although depending on the scale of the building, the mass of the movable mass in the mass damper type damping device is several tens of tons.
 なお、上記可動マスの容積(サイズ)は、小さければ小さいほど、制振装置の設置に要するスペースの削減化に有利なため、従来のマス・ダンパ形式の制振装置では、通常、全体が鋼製の可動マスを用いるようにしている。 Note that the smaller the volume (size) of the movable mass is, the more advantageous it is to reduce the space required for installing the vibration damping device. Therefore, the conventional mass damper type vibration damping device is generally made entirely of steel. A movable mass made of steel is used.
 上記マス・ダンパ形式の制振装置の全体を鋼製としてある可動マスを設置する場合、従来は、ビル建設現場に備えられているクレーンの能力に応じて、1枚当り10~15トン程度の厚肉に形成した矩形のプレート状の鋼製ブロックを、新設ビルにおける上記マス・ダンパ形式の制振装置の据付け現場に搬入し、該鋼製ブロックを積層して互いに溶接することにより、所望の質量の一体物の可動マスを現場で製作するようにしていた。
特開平3-33525号公報
When installing a movable mass that is made of steel as a whole of the mass damper type vibration damping device, conventionally, about 10 to 15 tons per piece depending on the capacity of the crane provided at the building construction site. A rectangular plate-shaped steel block formed into a thick wall is carried into the installation site of the mass damper type vibration damping device in a new building, and the steel blocks are stacked and welded together to form a desired A movable mass, which is a unitary mass, was made on-site.
JP-A-3-33525
 ところが、マス・ダンパ形式の制振装置を、既設のビルに後から据付けようとする場合には、以下のような様々な問題が生じてしまうのが実状である。 However, when trying to install a mass damper type vibration damping device in an existing building later, the following problems will actually occur.
 すなわち、既設のビルでは、マス・ダンパ形式の制振装置の構成部材の据付け現場への投入作業を行うためのクレーンとして、トラッククレーンのような移動式クレーンを用いる必要が生じるため、ビル建設現場でビル本体の工事用に用いられるクレーンに比して吊荷の重量制限を受ける。たとえば、吊荷の重量が2~3トン程度に制限されてしまう。そのために、ビル新設時に建設現場でビル本体工事用のクレーンを用いてマス・ダンパ形式の制振装置の構成部材を据付け現場へ投入する場合よりも、上記マス・ダンパ形式の制振装置は、軽量な構成部材に分割する必要がある。特に、可動マスは、数十トンの質量を有していることから、多数のブロックに分割する必要が生じる。 In other words, in an existing building, it is necessary to use a mobile crane such as a truck crane as a crane for performing the operation of loading the components of the mass damper type vibration damping device to the installation site. It is subject to weight restrictions on suspended loads compared to cranes used for building construction. For example, the weight of the suspended load is limited to about 2 to 3 tons. For this reason, the mass damper type damping device is more than the case where the components of the mass damper type damping device are introduced to the installation site using a crane for building the main body at the construction site when the building is newly constructed. It is necessary to divide into lightweight components. In particular, since the movable mass has a mass of several tens of tons, it needs to be divided into a large number of blocks.
 一方、該移動式クレーンの空き状況や、賃料、更に、制振装置の設置対象となるビルが街中にある場合は、移動式クレーンを配置するために該ビル周辺の道路交通規制を行う必要が生じることから、上記移動式クレーンを用いて行うマス・ダンパ形式の制振装置の構成部材の据付け現場への投入作業は、できるだけ短い時間で行うことが要求される。特に、高層ビルの屋上に制振装置の構成部材を投入できるような大型の移動式クレーンは、台数が限られるため、空いている日が少なく、又、賃料も非常に高価であることから、上記制振装置のすべての構成部材の据付け現場への投入を、一日で完了させなくてはならないことも多い。よって、上記マス・ダンパ形式の制振装置の構成部材の数や、可動マスの分割したブロック数はできるだけ少ない方が望ましい。 On the other hand, if the mobile crane is empty or rented, and there is a building to be installed with a vibration control device in the city, it is necessary to regulate road traffic around the building in order to place the mobile crane. For this reason, it is required to perform the operation of putting the components of the mass damper type damping device using the mobile crane into the installation site in as short a time as possible. In particular, a large-sized mobile crane that can insert the components of the vibration control device on the rooftop of a high-rise building has a limited number of days, so there are few free days and the rent is also very expensive. In many cases, it is necessary to complete the introduction of all the components of the vibration damping device to the installation site in one day. Therefore, it is desirable that the number of constituent members of the mass damper type damping device and the number of blocks obtained by dividing the movable mass be as small as possible.
 このように、マス・ダンパ形式の制振装置を、既設のビルに後から据付ける場合は、上記したような相反する要求を満足させなければならず、したがって、マス・ダンパ形式の制振装置を、既設のビルに効率よく据付ける手法は従来提案されていないというのが実状である。 Thus, when the mass damper type vibration damping device is installed later in an existing building, the above conflicting requirements must be satisfied, and therefore, the mass damper type vibration damping device. As a matter of fact, no method has been proposed in the past for efficient installation in an existing building.
 更に、可動マスを多数の鋼製ブロックに分割して制振装置の据付け現場へ投入した場合には、現地で上記多数のブロックを溶接して一体物としての可動マスを形成する必要があるため、現場での組立、調整に工数が嵩むという問題が生じてしまう。しかも、上記鋼製ブロック同士の溶接に伴って焼けた部分の補修塗装が必要になるため、このことによっても現場での工数が嵩んでしまい、更には、上記補修塗装部分について、経年劣化のメンテナンスが必要とされるという問題も生じてしまう。 Furthermore, when the movable mass is divided into a large number of steel blocks and put into the installation site of the vibration control device, it is necessary to weld the large number of blocks at the site to form a movable mass as an integral object. As a result, there is a problem that man-hours increase in assembly and adjustment on site. In addition, since it is necessary to repair and paint the burned parts due to the welding of the steel blocks, this also increases the number of man-hours in the field. There is also a problem that is required.
 そこで、本発明は、マス・ダンパ形式の制振装置を、既設のビルに後から据付ける場合に、移動式クレーンの吊荷の重量制限の範囲内となるように可動マスを分割するときの分割数(構成点数)を削減することができて、移動式クレーンを用いた該可動マスの構成部材の現場投入作業を軽減できると共に、制振装置据付け現場で一体物の可動マスを製作するために要する工数を削減することができるようにするための既設構造物用制振装置設置方法、及び、該方法に用いる制振装置を提供しようとするものである。 Therefore, the present invention provides a method for dividing a movable mass so as to be within the range of the weight limit of a suspended load of a mobile crane when a mass damper type damping device is installed later on an existing building. To reduce the number of divisions (number of components), reduce the work of loading the components of the movable mass using a mobile crane, and manufacture a movable mass as a single unit at the site of installation of the vibration control device It is an object of the present invention to provide a vibration damping device installation method for an existing structure and a vibration damping device used in the method so that the man-hours required for the method can be reduced.
 本発明は、上記課題を解決するために、既設構造物の上部の制振装置据付け現場に、上端側が開口するボックス構造の鋼製枠を、該既設構造物の揺れ方向に往復移動可能に設けた後、該鋼製枠にモルタル又はコンクリートを充填して、上記鋼製枠と該鋼製枠に充填されたモルタル又はコンクリートからなる可動マスを現地で形成して、上記制振装置据付け現場に、該可動マスを上記既設構造物の揺れ方向に往復移動可能に具備してなるマス・ダンパ形式の制振装置を設けるようにする既設構造物用制振装置設置方法とする。 In order to solve the above-mentioned problems, the present invention provides a box-structured steel frame that opens at the upper end side at the site of installation of the damping device at the upper part of the existing structure so as to be able to reciprocate in the shaking direction of the existing structure. Then, the steel frame is filled with mortar or concrete, and a movable mass composed of the steel frame and the mortar or concrete filled in the steel frame is formed on site, and the vibration control device is installed on the site. In addition, a damping device installation method for an existing structure is provided in which a mass damper type damping device is provided in which the movable mass is provided so as to be able to reciprocate in the shaking direction of the existing structure.
 又、本発明は、既設構造物の上部の制振装置据付け現場に、上端側が開口するボックス構造の鋼製枠を、水平面内の任意の方位へ往復移動可能に設けた後、該鋼製枠にモルタル又はコンクリートを充填して、上記鋼製枠と該鋼製枠に充填されたモルタル又はコンクリートからなる可動マスを現地で形成して、制振装置据付け現場に、該可動マスを水平面内の任意の方位へ往復移動可能に具備してなるマス・ダンパ形式の制振装置を設けるようにする既設構造物用制振装置設置方法とする。 Further, the present invention provides a steel frame having a box structure having an opening at the upper end side at an installation site of an upper part of an existing structure so that the steel frame can be reciprocated in an arbitrary direction within a horizontal plane, and then the steel frame. Mortar or concrete is filled in, and a movable mass composed of the steel frame and the mortar or concrete filled in the steel frame is formed on site, and the movable mass is placed in a horizontal plane at the vibration control device installation site. A damping device installation method for an existing structure is provided in which a mass damper type damping device provided so as to be capable of reciprocating in any direction is provided.
 更に、上記において、既設構造物の制振装置据付け現場に設けた鋼製枠に、制振装置の構成部材の投入に使用する移動式クレーンの吊荷の重量制限の範囲内となる重量の鋼製のウェイトを収納した後、上記鋼製枠にモルタル又はコンクリートを充填して可動マスを形成するようにする。 Furthermore, in the above, steel having a weight within the range of the weight limit of the suspended load of the mobile crane used for loading the structural members of the vibration damping device on the steel frame provided at the installation site of the vibration damping device of the existing structure. After storing the weight made of steel, the steel frame is filled with mortar or concrete to form a movable mass.
 同様に、上記において、既設構造物の制振装置据付け現場に設けた鋼製枠に、高比重の塊状物と、モルタル又はコンクリートとを、同時にあるいは所要の順序で充填して可動マスを形成するようにする。 Similarly, in the above, the steel frame provided at the installation site of the vibration damping device for the existing structure is filled with the high specific gravity block and mortar or concrete simultaneously or in the required order to form a movable mass. Like that.
 更に、上記において、既設構造物の制振装置据付け現場に設けた鋼製枠に充填する高比重の塊状物として、重晶石又はスラグを用いるようにする。 Furthermore, in the above, barite or slag is used as the high specific gravity lump filled in the steel frame provided at the installation site of the vibration damping device for the existing structure.
 本発明は、可動マスを、制振対象構造物の揺れに応じて往復移動させることにより該制振対象構造物の制振を行うようにしてある制振装置において、上端側が開口するボックス構造の空の鋼製枠を、制振対象構造物となる既設構造物の上部の制振装置据付け現場に、該既設構造物の揺れ方向に往復移動可能に設け、更に、該鋼製枠にモルタル又はコンクリートを充填して可動マスを形成してなる構成を有する制振装置とする。 The present invention provides a vibration damping device that performs vibration control of a structure to be controlled by reciprocating a movable mass according to the vibration of the structure to be controlled, and has a box structure with an upper end opened. An empty steel frame is provided on the vibration control device installation site above the existing structure, which is the structure to be damped, so as to be able to reciprocate in the shaking direction of the existing structure. The vibration damping device has a configuration in which a movable mass is formed by filling concrete.
 又、本発明は、可動マスを、制振対象構造物の揺れに応じて往復移動させることにより該制振対象構造物の制振を行うようにしてある制振装置において、上端側が開口するボックス構造の空の鋼製枠を、制振対象構造物となる既設構造物の上部の制振装置据付け現場に、水平面内の任意の方位へ往復移動可能に設け、更に、該鋼製枠にモルタル又はコンクリートを充填して可動マスを形成してなる構成を有する制振装置とする。 The present invention also relates to a box having an upper end opened in a damping device configured to perform damping of the structure to be controlled by reciprocating the movable mass in response to the vibration of the structure to be controlled. An empty steel frame with a structure is provided on the installation site of the vibration damping device on the upper part of the existing structure to be dampened so that it can reciprocate in any direction in the horizontal plane. Or it is set as the damping device which has the structure formed by filling concrete and forming a movable mass.
 上記制振装置の構成において、可動マスを、既設構造物に設けた空の鋼製枠に、制振装置の構成部材の投入に使用する移動式クレーンの吊荷の重量制限の範囲内となる重量の鋼製のウェイトを収納し、更に、上記鋼製枠にモルタル又はコンクリートを充填してなる構成とする。 In the structure of the above vibration damping device, the movable mass is within the range of the weight limit of the suspended load of the mobile crane used for loading the structural members of the vibration damping device into the empty steel frame provided in the existing structure. A heavy steel weight is stored, and the steel frame is filled with mortar or concrete.
 同様に、上記各制振装置の構成において、可動マスを、既設構造物に設けた空の鋼製枠に、高比重の塊状物と、モルタル又はコンクリートとを充填してなる構成とする。 Similarly, in the configuration of each of the above vibration damping devices, the movable mass is configured by filling an empty steel frame provided in an existing structure with a block having a high specific gravity and mortar or concrete.
 更に、上記制振装置の構成において、既設構造物に設けた空の鋼製枠に充填する高比重の塊状物を、重晶石又はスラグとした構成とする。 Furthermore, in the configuration of the above vibration damping device, a high specific gravity lump filled in an empty steel frame provided in an existing structure is formed as barite or slag.
 本発明によれば、以下のような優れた効果を発揮する。 
(1)既設構造物の上部の制振装置据付け現場に、上端側が開口するボックス構造の鋼製枠を、該既設構造物の揺れ方向に往復移動可能に設けた後、該鋼製枠にモルタル又はコンクリートを充填して、上記鋼製枠と該鋼製枠に充填されたモルタル又はコンクリートからなる可動マスを現地で形成して、上記制振装置据付け現場に、該可動マスを上記既設構造物の揺れ方向に往復移動可能に具備してなるマス・ダンパ形式の制振装置を設けるようにする既設構造物用制振装置設置方法、及び、可動マスを、制振対象構造物の揺れに応じて往復移動させることにより該制振対象構造物の制振を行うようにしてある制振装置において、上端側が開口するボックス構造の空の鋼製枠を、制振対象構造物となる既設構造物の上部の制振装置据付け現場に、該既設構造物の揺れ方向に往復移動可能に設け、更に、該鋼製枠にモルタル又はコンクリートを充填して可動マスを形成してなる構成を有する制振装置、又は、既設構造物の上部の制振装置据付け現場に、上端側が開口するボックス構造の鋼製枠を、水平面内の任意の方位へ往復移動可能に設けた後、該鋼製枠にモルタル又はコンクリートを充填して、上記鋼製枠と該鋼製枠に充填されたモルタル又はコンクリートからなる可動マスを現地で形成して、制振装置据付け現場に、該可動マスを水平面内の任意の方位へ往復移動可能に具備してなるマス・ダンパ形式の制振装置を設けるようにする既設構造物用制振装置設置方法、及び、可動マスを、制振対象構造物の揺れに応じて往復移動させることにより該制振対象構造物の制振を行うようにしてある制振装置において、上端側が開口するボックス構造の空の鋼製枠を、制振対象構造物となる既設構造物の上部の制振装置据付け現場に、水平面内の任意の方位へ往復移動可能に設け、更に、該鋼製枠にモルタル又はコンクリートを充填して可動マスを形成してなる構成を有する制振装置としてあるので、既設構造物の制振装置据付け現場に、制振装置において大きな質量を有する可動マスを設けるために、該制振装置据付け現場へ搬入するのは、空の鋼製枠とモルタルでよいため、所要質量の可動マスを既設ビルへ制振装置の構成部材の投入を行うために用いる移動式クレーンの吊荷の重量制限以内の重量となるように分割する際の分割数を、全体を鋼製とする同質量の可動マスを上記移動式クレーンの吊荷の重量制限以内の重量の鋼製のブロックに分割する場合に比して削減することができる。よって、上記移動式クレーンを用いた既設ビルへの可動マスの構成部材の現場投入回数を削減できて、制振装置の構成部材の現場投入作業を軽減させることができる。
(2)又、鋼製枠にモルタル又はコンクリートを充填するのみで、何ら溶接作業を要することなく、一体構造の可動マスを形成することができるため、鋼製のブロック同士を溶接して全体が鋼製の同質量の可動マスを形成する場合に比して、制振装置据付け現場で一体物の可動マスを製作するために要する工数を大幅に削減することができる。したがって、鋼製ブロック同士を溶接して可動マスを構成する場合に必要とされる溶接で焼ける部分の補修塗装の手間が大幅に減るため、このことによっても工数の削減化を図ることができ、更には、この補修塗装部分のメンテナンス作業を不要にできるという効果も期待できる。
(3)既設構造物の制振装置据付け現場に設けた鋼製枠に、制振装置の構成部材の投入に使用する移動式クレーンの吊荷の重量制限の範囲内となる重量の鋼製のウェイトを収納した後、上記鋼製枠にモルタル又はコンクリートを充填して可動マスを形成するようにするようにすることにより、可動マスの単位体積当りの平均質量を増加させることができるため、可動マスの容積の削減に有利なものとすることができる。 
(4)既設構造物の制振装置据付け現場に設けた鋼製枠に、高比重の塊状物と、モルタル又はコンクリートとを、同時にあるいは所要の順序で充填して可動マスを形成するようにすることによっても、可動マスの単位体積当りの平均質量を増加させることができるため、可動マスの容積の削減に有利なものとすることができる。 
(5)既設構造物の制振装置据付け現場に設けた鋼製枠に充填する高比重の塊状物として、重晶石又はスラグを用いるようにすることにより、上記(4)の単位体積当りの平均質量を増加させてなる可動マスを容易に実現することができる。
According to the present invention, the following excellent effects are exhibited.
(1) A steel frame having a box structure with an opening at the upper end side is provided at the installation site of the vibration damping device above the existing structure so as to be able to reciprocate in the shaking direction of the existing structure. Or, concrete is filled, and a movable mass made of the steel frame and mortar or concrete filled in the steel frame is formed on-site, and the movable mass is installed on the vibration control device installation site. The vibration damping device installation method for an existing structure, which is provided with a mass damper type vibration damping device that can be reciprocated in the direction of vibration, and a movable mass according to the vibration of the structure to be controlled In the vibration control device designed to perform vibration control of the structure subject to vibration suppression by reciprocating the structure, an empty steel frame having a box structure with an open upper end is used as the structure to be controlled. At the installation site A vibration damping device having a structure in which a movable mass is formed by filling the steel frame with mortar or concrete, or provided on the upper side of the existing structure. A steel frame with a box structure with an opening at the upper end side is provided at the vibration control device installation site so as to be able to reciprocate in any direction in a horizontal plane, and then the steel frame is filled with mortar or concrete, A movable mass made of mortar or concrete filled in a frame and the steel frame is formed on-site, and the movable mass is provided on the vibration control device installation site so as to be capable of reciprocating in any direction within a horizontal plane. A damping device installation method for an existing structure in which a mass damper type damping device is provided, and the movable mass is reciprocated according to the shaking of the damping target structure, thereby the damping target structure To control In an existing vibration damping device, an empty steel frame with a box structure with an open upper end is reciprocated in an arbitrary direction in the horizontal plane to the installation site of the vibration damping device on the upper part of the existing structure to be the vibration damping target structure. Since the vibration control device is configured to be movable and further has a configuration in which the steel frame is filled with mortar or concrete to form a movable mass, the vibration control device is installed at the installation site of the vibration control device of the existing structure. In order to provide a movable mass having a large mass in the above, it is sufficient that an empty steel frame and mortar is carried into the vibration damping device installation site, so that the movable mass having the required mass is transferred to an existing building. The number of divisions when dividing so that the weight of the suspended load of the mobile crane to be used for loading is equal to the weight of the movable crane. Of weight within the weight limit This can be reduced as compared with the case of dividing into steel blocks. Therefore, the number of on-site inputs of the movable mass components to the existing building using the mobile crane can be reduced, and the on-site operation of the components of the vibration damping device can be reduced.
(2) Since the steel frame can be filled with mortar or concrete and a movable mass with an integral structure can be formed without requiring any welding operation, the entire steel block is welded together. Compared with the case where a movable mass having the same mass made of steel is formed, the number of steps required to manufacture the movable mass as an integral object at the vibration control device installation site can be greatly reduced. Therefore, the labor required for repair painting of the parts that can be burned by welding, which is required when welding movable steel blocks to form a movable mass, can greatly reduce man-hours. Furthermore, the effect that the maintenance work of this repair painting part can be made unnecessary can also be expected.
(3) The steel frame provided at the installation site of the vibration damping device for the existing structure is made of steel with a weight that is within the range of the weight limit of the suspended load of the mobile crane used for loading the components of the vibration damping device. After the weight is stored, the average mass per unit volume of the movable mass can be increased by filling the steel frame with mortar or concrete to form the movable mass. This can be advantageous in reducing the volume of the mass.
(4) The steel frame provided at the installation site of the vibration damping device for the existing structure is filled with a high specific gravity block and mortar or concrete simultaneously or in the required order to form a movable mass. In this way, the average mass per unit volume of the movable mass can be increased, which can be advantageous for reducing the volume of the movable mass.
(5) By using barite or slag as a high specific gravity lump filled in the steel frame provided at the installation site of the vibration control device for the existing structure, A movable mass obtained by increasing the average mass can be easily realized.
本発明の既設構造物用制振装置設置方法、及び、該方法の実施に用いる制振装置の実施例を示す概略正面図である。It is a schematic front view which shows the Example of the damping device installation method for existing structures of this invention, and the damping device used for implementation of this method. 図1の制振装置の概略側面図である。It is a schematic side view of the vibration damping device of FIG. 図1の制振装置の概略平面図である。FIG. 2 is a schematic plan view of the vibration damping device of FIG. 1. 図1の制振装置における可動マスを拡大して示す切断正面図である。It is a cutting front view which expands and shows the movable mass in the vibration damping device of FIG. 既設ビルに図1の制振装置を設置した状態を示す概要図である。It is a schematic diagram which shows the state which installed the damping device of FIG. 1 in the existing building. 本発明の実施例の他の形態として、本発明の既設構造物用制振装置設置方法の実施に用いる制振装置の可動マスの別の実施例を示す図4に対応する図である。It is a figure corresponding to FIG. 4 which shows another Example of the movable mass of the damping device used for implementation of the damping device installation method for existing structures of this invention as another form of the Example of this invention. 図6の制振装置の可動マスを形成する手順を説明するための図で、鋼製枠に重晶石を詰めた状態を示す切断正面図である。It is a figure for demonstrating the procedure which forms the movable mass of the damping device of FIG. 6, and is a cutting front view which shows the state which packed the barite in the steel frame. 図6の制振装置の可動マスを形成する別の手順を説明するための図で、鋼製枠にモルタルを注入した状態を示す切断正面図である。It is a figure for demonstrating another procedure which forms the movable mass of the damping device of FIG. 6, and is a cutting front view which shows the state which injected the mortar to the steel frame.
符号の説明Explanation of symbols
 I 制振装置
 8 可動マス
 9 鋼製枠
 10 モルタル
 12,12a ウェイト
 19 既設ビル(既設構造物)
 20 重晶石(高比重の塊状物)
I Damping device 8 Movable mass 9 Steel frame 10 Mortar 12, 12a Weight 19 Existing building (existing structure)
20 Barite (Lump with high specific gravity)
 以下、本発明の実施例を図面を参照して説明する。
 図1乃至図5は本発明の既設構造物用制振装置設置方法に用いる制振装置の実施例を示すもので、以下のようにしてある。
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 to FIG. 5 show an embodiment of a vibration damping device used in the method for installing a vibration damping device for an existing structure according to the present invention.
 すなわち、高さ寸法調整機能を備えた4台の基礎フレーム1上に、水平面内で互いに直交する2つの軸方向のうちの一方の軸方向(以下、x軸方向と云う)に所要寸法延びる固定フレーム2を、防振ゴムの如き図示しない防振用部材を介在させた状態で取り付ける。上記固定フレーム2の上側には、上記固定フレーム2の長手方向となるx軸方向に延びる下段リニアガイド3と、可動部4aをx軸方向に沿わせて往復駆動できるようにしてある下段アクチュエータ4を設ける。 In other words, on the four basic frames 1 having a height dimension adjusting function, a fixed dimension extending in one axial direction (hereinafter referred to as the x-axis direction) of two axial directions orthogonal to each other in a horizontal plane. The frame 2 is attached in a state where an anti-vibration member (not shown) such as an anti-vibration rubber is interposed. On the upper side of the fixed frame 2, a lower linear guide 3 extending in the x-axis direction, which is the longitudinal direction of the fixed frame 2, and a lower actuator 4 configured so that the movable portion 4a can be reciprocated along the x-axis direction. Is provided.
 上記下段リニアガイド3のスライダ3aの上側に、上記水平面内で互いに直交する2つの軸方向のうちの他方の軸方向(以下、y軸方向と云う)に所要寸法延びる可動フレーム5を取り付けると共に、該可動フレーム5の所要個所に、上記下段アクチュエータ4の可動部4aを連結する。 On the upper side of the slider 3a of the lower linear guide 3, a movable frame 5 extending in a required dimension in the other axial direction (hereinafter referred to as y-axis direction) of two axial directions orthogonal to each other in the horizontal plane is attached. The movable portion 4 a of the lower actuator 4 is connected to a required portion of the movable frame 5.
 上記可動フレーム5の上側には、該可動フレーム5の長手方向となるy軸方向に延びる上段リニアガイド6と、可動部としてのナット部材7aをy軸方向に沿わせて往復駆動できるようにしてある上段アクチュエータ7を設ける。 On the upper side of the movable frame 5, an upper linear guide 6 extending in the y-axis direction, which is the longitudinal direction of the movable frame 5, and a nut member 7a as a movable part are reciprocally driven along the y-axis direction. A certain upper actuator 7 is provided.
 更に、上記上段リニアガイド6のスライダ6aの上側に、上端側が開口するボックス構造の鋼製枠9を取り付けると共に、該鋼製枠9の所要個所に上記上段アクチュエータ7の可動部としてのナット部材7aを連結し、更に、上記鋼製枠9に無収縮性のモルタル10を充填して、該鋼製枠9とモルタル10からなる可動マス8を備えたマス・ダンパ形式の既設構造物設置用の制振装置Iを構成する。 Further, a box-shaped steel frame 9 having an open upper end is attached to the upper side of the slider 6a of the upper linear guide 6, and a nut member 7a as a movable part of the upper actuator 7 is attached to a required portion of the steel frame 9. In addition, the steel frame 9 is filled with non-shrinkable mortar 10, and a mass damper type existing structure installation provided with a movable mass 8 composed of the steel frame 9 and the mortar 10 is used. The damping device I is configured.
 詳述すると、上記固定フレーム2上には、長手方向(x軸方向)と直交する幅方向の両端部に、x軸方向に延びる下段リニアガイド3がそれぞれ設置してある。又、該各下段リニアガイド3は、それぞれ2台ずつのスライダ3aを備えてなる構成としてある。 More specifically, on the fixed frame 2, lower linear guides 3 extending in the x-axis direction are respectively installed at both ends in the width direction orthogonal to the longitudinal direction (x-axis direction). Each of the lower linear guides 3 includes two sliders 3a.
 又、上記下段アクチュエータ4は、駆動モータ4bと、その出力軸に連結したねじ軸4cと、該ねじ軸4cに螺号させた上記可動部4aとしてのナット部材4aとを具備して、上記駆動モータ4bによる上記ねじ軸4cの正逆転駆動により、上記ナット部材4aを上記ねじ軸4cの軸心方向に沿って往復移動させることができるようにしたボールねじ形式のアクチュエータとしてあり、上記固定フレーム2の幅方向中央部に、x軸方向に沿わせて配置した2基の下段アクチュエータ4が並列に設置してある。 The lower actuator 4 includes a drive motor 4b, a screw shaft 4c connected to the output shaft thereof, and a nut member 4a serving as the movable portion 4a screwed to the screw shaft 4c. The nut member 4a can be reciprocated along the axial direction of the screw shaft 4c by forward and reverse rotation of the screw shaft 4c by 4b. Two lower actuators 4 arranged along the x-axis direction are installed in parallel at the center in the width direction.
 上記固定フレーム2上に設けてある各下段リニアガイド3の2台ずつのスライダ3aと、上記各下段アクチュエータ4におけるナット部材4aの上側には、上記可動フレーム5を載置すると共に、該可動フレーム5の下面におけるそれぞれ対応する個所に、上記各スライダ3a及び各ナット部材4aがボルト止めにより連結してある。これにより、上記下段アクチュエータ4により、上記固定フレーム2上にて、可動フレーム5をx軸方向に沿って往復駆動できるようにしてある。 The movable frame 5 is placed on the upper side of the two sliders 3a of each lower linear guide 3 provided on the fixed frame 2 and the nut member 4a of each lower actuator 4, and the movable frame The respective sliders 3a and the respective nut members 4a are connected to corresponding portions on the lower surface of 5 by bolting. As a result, the movable frame 5 can be reciprocated along the x-axis direction on the fixed frame 2 by the lower actuator 4.
 上記可動フレーム5上には、長手方向(y軸方向)と直交する幅方向の両端部に、y軸方向に延びる上段リニアガイド6がそれぞれ設置してある。又、該各上段リニアガイド6は、それぞれ2台ずつのスライダ6aを備えてなる構成としてある。 On the movable frame 5, upper linear guides 6 extending in the y-axis direction are respectively installed at both ends in the width direction orthogonal to the longitudinal direction (y-axis direction). Each of the upper linear guides 6 includes two sliders 6a.
 上記上段アクチュエータ7は、上記下段アクチュエータ4と同様に、駆動モータ7bとねじ軸7cと可動部としてのナット部材7aを具備したボールねじ形式のアクチュエータとしてあり、上記可動フレーム5の幅方向中央部に、該上段アクチュエータ7がy軸方向に沿って延びるように設置してある。 Similar to the lower actuator 4, the upper actuator 7 is a ball screw type actuator having a drive motor 7b, a screw shaft 7c, and a nut member 7a as a movable part. The upper actuator 7 is installed so as to extend along the y-axis direction.
 上記可動フレーム5上に設けた各上段リニアガイド6の各スライダ6aの上側には、上記可動マス8の鋼製枠9の下面の4角部に設けたブラケット11を載置してボルト止めにより連結してある。又、可動フレーム5上の上記上段アクチュエータ7のナット部材7aの上端部を、上記鋼製枠9の中央部の下面にボルト止めにより連結した構成としてある。これにより、上記上段アクチュエータ7により、可動フレーム5上にて、上記可動マス8の鋼製枠9をy軸方向に沿って往復駆動できるようにしてある。 On the upper side of each slider 6a of each upper linear guide 6 provided on the movable frame 5, brackets 11 provided on the four corners of the lower surface of the steel frame 9 of the movable mass 8 are placed and bolted. It is connected. The upper end of the nut member 7a of the upper actuator 7 on the movable frame 5 is connected to the lower surface of the central portion of the steel frame 9 by bolting. Thus, the upper actuator 7 can reciprocate the steel frame 9 of the movable mass 8 along the y-axis direction on the movable frame 5.
 上記可動マス8は、鋼製枠9の質量と、その内側に充填するモルタル10の質量の和によって制振対象構造物の制振を行うマス・ダンパ形式の制振装置Iにおける可動マス8としての所定の質量を得るようにするものであるが、該所定の質量を有する可動マス8の容積の低減化が望まれる場合は、上記鋼製枠9の内側に、モルタル10よりも比重の大きい鋼製のウェイト12を予め収納した状態でモルタル10を充填して、単位体積当りの平均質量がより大きくなる可動マス8を形成するようにしてもよい。 The movable mass 8 is the movable mass 8 in the mass damper type damping device I that controls the damping target structure by the sum of the mass of the steel frame 9 and the mass of the mortar 10 filled therein. However, when it is desired to reduce the volume of the movable mass 8 having the predetermined mass, the specific gravity is larger than that of the mortar 10 inside the steel frame 9. The movable mass 8 having a larger average mass per unit volume may be formed by filling the mortar 10 in a state in which the steel weight 12 is stored in advance.
 具体的には、図4に示すように、上記鋼製枠9を、予め内底部の所要個所にウェイト仮止用ボルト13を螺着させるためのナット部材14を設けると共に、該鋼製枠9の内底面に、上記ナット部材14の上端よりもやや高い位置まで立ち上がるスペーサ15を設けた構成としておく。上記スペーサ15の所要個所には、通り穴16のようなモルタル10が流通する空間部を設けておくようにする。なお、上記通り穴16は上記鋼製枠9の吊り環と兼用させるようにしてもよい。 Specifically, as shown in FIG. 4, the steel frame 9 is provided with a nut member 14 for screwing the weight temporary fixing bolt 13 in advance at a required portion of the inner bottom portion. The spacer 15 rising to a position slightly higher than the upper end of the nut member 14 is provided on the inner bottom surface. A space where the mortar 10 circulates like a through hole 16 is provided at a required portion of the spacer 15. The through hole 16 may also be used as the suspension ring of the steel frame 9.
 更に、上記鋼製枠9の平面形状よりも一回り小さい矩形板状とし、且つ後述するように既設のビルの上部におけるマス・ダンパ形式の制振装置Iの据付け位置へ該制振装置Iの構成部材の投入作業を行うためのトラッククレーンのような移動式クレーンの吊荷の重量制限以内の重量とした鋼製のウェイト12を予め用意して、上記鋼製枠9の内側中央部におけるスペーサ15の上に上記ウェイト12を所要枚数、たとえば、6枚載置し、更に、該各ウェイト12の所要個所に設けてある貫通孔を上方から挿通させたウェイト仮止用ボルト13を、上記鋼製枠9の内底部のナット部材14に螺着させることで、該各ウェイト12を仮固定した状態にて、上記鋼製枠9の内側に上記各ウェイト12が埋没するようにモルタル10を充填して可動マス8を形成するようにしてある。更に、上記可動マス8の質量の更なる増加を図るために、上記鋼製枠9の内底部に設けてあるスペーサ15やナット部材と干渉しない位置に、鋼製のウェイト12aを更に収納させてなる構成としてもよい。 Furthermore, it is a rectangular plate shape that is slightly smaller than the planar shape of the steel frame 9 and, as will be described later, to the installation position of the mass damper type vibration damping device I in the upper part of the existing building. A steel weight 12 having a weight within a weight limit of a suspended load of a mobile crane such as a truck crane for performing a loading operation of a component member is prepared in advance, and a spacer at an inner central portion of the steel frame 9 is prepared. A predetermined number of the weights 12, for example, six, are placed on 15, and a weight temporary fixing bolt 13 having a through-hole provided at a required position of each weight 12 inserted from above is attached to the steel. The mortar 10 is filled so that the weights 12 are buried inside the steel frame 9 in a state where the weights 12 are temporarily fixed by being screwed to the nut members 14 on the inner bottom portion of the frame making 9. Movable It is so as to form a scan 8. Further, in order to further increase the mass of the movable mass 8, a steel weight 12a is further accommodated in a position where it does not interfere with the spacer 15 and the nut member provided on the inner bottom portion of the steel frame 9. It is good also as composition which becomes.
 17は固定フレーム2の長手方向両端部に内向きに設けたストッパであり、該各ストッパ17により、該固定フレーム2上にて上記可動フレーム5の振幅が過大になる虞を防止できるようにしてある。又、18は可動フレーム5の長手方向両端部に内向きに設けたストッパであり、該各ストッパ18により、該可動フレーム5上にて上記可動マス8の振幅が過大になる虞を防止できるようにしてある。 Reference numeral 17 denotes a stopper provided inward at both ends in the longitudinal direction of the fixed frame 2. The stoppers 17 can prevent the amplitude of the movable frame 5 from being excessive on the fixed frame 2. is there. Reference numeral 18 denotes a stopper provided inward at both ends in the longitudinal direction of the movable frame 5, so that the respective stoppers 18 can prevent a possibility that the amplitude of the movable mass 8 becomes excessive on the movable frame 5. It is.
 以上の構成としてある既設構造物設置用の制振装置Iを、既設構造物の上部、たとえば、図5に示す如き既設のビル19の屋上部に設置する場合は、予め、上記制振装置Iを、投入作業を行うために用いるトラッククレーンのような移動式クレーンの吊荷の重量制限以内の重量の構成部材に分割しておく。 When the vibration damping device I for installing an existing structure having the above-described configuration is installed on the upper part of the existing structure, for example, on the roof of an existing building 19 as shown in FIG. Is divided into components having a weight within the weight limit of a suspended load of a mobile crane such as a truck crane used for performing the loading operation.
 具体的には、4台の各基礎フレーム1と、下段リニアガイド3及び下段アクチュエータ4を取り付けた固定フレーム2と、上段リニアガイド6及び上段アクチュエータ7を取り付けた可動フレーム5に分割し、更に、可動マス8については、モルタル10充填前の空の鋼製枠9と、ウェイト12,12aとを分離した状態としておく。 Specifically, each of the four basic frames 1, the fixed frame 2 to which the lower linear guide 3 and the lower actuator 4 are attached, and the movable frame 5 to which the upper linear guide 6 and the upper actuator 7 are attached are further divided. About the movable mass 8, the empty steel frame 9 before filling the mortar 10 and the weights 12 and 12a are separated.
 次に、上記のように分割された4台の基礎フレーム1と、下段リニアガイド3及び下段アクチュエータ4を取り付けた固定フレーム2と、上段リニアガイド6及び上段アクチュエータ7を取り付けた可動フレーム5と、モルタル10充填前の鋼製枠9と、ウェイト12を、図示しない移動式クレーンを用いて上記既設ビル19の屋上部に投入する。 Next, the four basic frames 1 divided as described above, the fixed frame 2 to which the lower linear guide 3 and the lower actuator 4 are attached, the movable frame 5 to which the upper linear guide 6 and the upper actuator 7 are attached, The steel frame 9 and the weight 12 before filling the mortar 10 are put into the roof of the existing building 19 using a mobile crane (not shown).
 次いで、上記既設ビル19の屋上部にて、制振装置据付け個所の上方に設けた図示しない仮設の架構に取り付けたチェーンブロックや、ハンドフォークリフト等の搬送機器を用いて、先ず、上記既設ビル19の屋上部における制振装置据付け位置に、上記4台の基礎フレーム1を設置して、すべての基礎フレーム1の上端位置が水平方向に揃うように該各基礎フレーム1の高さ寸法を調整した後、該各基礎フレーム1上に、上記固定フレーム2を取り付ける。 Next, on the roof of the existing building 19, first, using the chain block attached to a temporary frame (not shown) provided above the place where the vibration control device is installed, and a transport device such as a hand forklift, first, the existing building 19 The four foundation frames 1 were installed at the vibration damping device installation position on the rooftop of the roof, and the height dimensions of the foundation frames 1 were adjusted so that the upper end positions of all the foundation frames 1 were aligned in the horizontal direction. Thereafter, the fixed frame 2 is mounted on each base frame 1.
 上記のようにして固定フレーム2の設置を行った後は、該固定フレーム2上に設置してある各下段リニアガイド3のスライダ3aと、下段アクチュエータ4のナット部材7aの上側に、上記可動フレーム5を載置すると共にボルト止めして連結する。 After the fixed frame 2 is installed as described above, the movable frame is placed above the slider 3a of each lower linear guide 3 and the nut member 7a of the lower actuator 4 installed on the fixed frame 2. 5 is mounted and bolted to connect.
 その後、上記可動フレーム2上に設置してある各上段リニアガイド6のスライダ6aと、上段アクチュエータ7のナット部材7aの上側に、上記空の鋼製枠9を載置してボルト止めして連結する。 Thereafter, the empty steel frame 9 is placed on the slider 6a of each upper linear guide 6 installed on the movable frame 2 and the nut member 7a of the upper actuator 7 and is bolted and connected. To do.
 以上のようにして、上記空の鋼製枠9の上段リニアガイド6及び上段アクチュエータ7、可動フレーム5、下段リニアガイド3及び下段アクチュエータ4、固定フレーム2、並びに、基礎フレーム1を介した上記既設ビル19の屋上部への設置が終了すると、上記鋼製枠9内へ、図4に示した如きウェイト12,12aの搬入を開始して、該ウェイト12,12aを、上記鋼製枠9内の所定個所に配置して、仮止めする。 As described above, the upper linear guide 6 and the upper actuator 7 of the empty steel frame 9, the movable frame 5, the lower linear guide 3 and the lower actuator 4, the fixed frame 2, and the existing frame through the base frame 1. When the installation on the roof of the building 19 is completed, the loading of the weights 12 and 12a as shown in FIG. 4 into the steel frame 9 is started, and the weights 12 and 12a are placed in the steel frame 9 Place it at a predetermined location and temporarily fix it.
 しかる後、上記鋼製枠9の内側に、モルタル10を充填して、上記鋼製枠9内に配置してある上記ウェイト12,12aを該モルタル10に埋没させ、この状態で上記鋼製枠9に充填したモルタル10を固化させて可動マス8を形成することにより、上記既設ビル19への制振装置Iの設置を完了する。 Thereafter, the inside of the steel frame 9 is filled with mortar 10, and the weights 12 and 12a disposed in the steel frame 9 are buried in the mortar 10, and in this state, the steel frame By solidifying the mortar 10 filled in 9 to form the movable mass 8, the installation of the vibration damping device I in the existing building 19 is completed.
 なお、図5に示したものでは、既設ビル19の屋上部に、2基の制振装置Iを対角方向に設置した状態が示してあるが、このように、複数基の制振装置Iの設置を行う場合であっても、予め移動式クレーンの吊荷の重量制限以内の重量となるようにしてある2基分の制振装置Iの構成要素を、図示しない移動式クレーンを用いて上記既設ビル19の屋上部に一度に投入し、その後、各制振装置Iのそれぞれ所定の据付個所にて、上記したと同様の手順により、1基ずつ制振装置Iを組み立てて設置するようにすればよい。 5 shows a state in which two vibration damping devices I are installed diagonally on the roof of the existing building 19, but in this way, a plurality of vibration damping devices I are provided. Even if the installation is performed, the components of the vibration damping device I for two units, which are set to have a weight within the weight limit of the suspended load of the mobile crane in advance, using a mobile crane (not shown) The unit is put into the roof of the existing building 19 at a time, and then the damping device I is assembled and installed one by one at the predetermined installation location of each damping device I by the same procedure as described above. You can do it.
 このように、本発明の既設構造物用制振装置設置方法、及び、該方法に用いる制振装置によれば、制振装置Iの可動マス8を、鋼製枠9と、その内側へ充填するモルタル10と、ウェイト12,12aとからなる構成とすることで、制振装置Iにおいて数十トンもの大きな質量を有することが求められる可動マス8を、既設ビル19へ制振装置Iの構成部材の投入を行うために用いる図示しない移動式クレーンの吊荷の重量制限以内の重量となるように分割する際の分割数を、全体を鋼製とする同質量の可動マスを上記移動式クレーンの吊荷の重量制限以内の重量の鋼製のブロックに分割する場合に比して削減することができる。よって、上記図示しない移動式クレーンを用いた既設ビル19への可動マス8の構成部材の現場投入回数を削減できて、該可動マス8の構成部材の現場投入作業を軽減させることができる。又、上記鋼製枠9内の所定個所にウェイト12,12aを搬入して仮固定した後は、上記鋼製枠9内に、上記ウェイト12,12aが埋没するようにモルタル10を充填するのみで、何ら溶接作業を要することなく、一体構造の可動マス8を形成することができる。又、上記各ウェイト12,12aは、モルタル10に埋没させることで外気との接触を遮断することができる。 Thus, according to the vibration damping device installation method for an existing structure and the vibration damping device used in the method of the present invention, the movable mass 8 of the vibration damping device I is filled into the steel frame 9 and the inside thereof. The configuration of the damping device I is configured so that the movable mass 8 that is required to have a mass as large as several tens of tons in the damping device I is provided to the existing building 19 by the configuration including the mortar 10 and the weights 12 and 12a. The movable crane has the same mass as the movable mass, which is made of steel as a whole, and is divided so that the weight is within the weight limit of the suspended load of the mobile crane (not shown) used for loading the members. This can be reduced as compared with the case of dividing into steel blocks having a weight within the weight limit of the suspended load. Therefore, it is possible to reduce the number of on-site loading of the constituent members of the movable mass 8 to the existing building 19 using the mobile crane (not shown), and to reduce the on-site loading work of the constituent members of the movable mass 8. Further, after the weights 12 and 12a are carried and temporarily fixed to predetermined positions in the steel frame 9, only the mortar 10 is filled in the steel frame 9 so that the weights 12 and 12a are buried. Therefore, the movable mass 8 having an integral structure can be formed without requiring any welding work. The weights 12 and 12a can be blocked from contact with outside air by being buried in the mortar 10.
 したがって、図示しない移動式クレーンの吊荷の重量制限以内の重量となるように分割してある鋼製のブロック同士を溶接して全体が鋼製の同質量の可動マスを形成する場合に比して、制振装置据付け現場で一体物の可動マス8を製作するために要する工数を削減することができる。 Therefore, compared to the case where the steel blocks which are divided so that the weight is within the weight limit of the suspended load of the mobile crane (not shown) are welded to form a movable mass of the same mass made entirely of steel. Thus, it is possible to reduce the number of man-hours required to manufacture the movable mass 8 as a single unit at the site where the vibration damping device is installed.
 又、上記のように鋼製のブロック同士を溶接して可動マスを形成する場合は、個々の鋼製ブロックが予め防錆処理されている場合であっても、該各鋼製ブロック同士を溶接作業後には、防錆処理として溶接部分の補修塗装作業が必要になると共に、各ブロック同士の隙間を鉄パテ等で埋める作業が必要とされるが、上記本発明の既設構造物用制振装置設置方法、及び、該方法に用いる制振装置では、制振装置据付け現場で一体物の可動マス8を製作した後、これらの作業は全く必要なく、このことによっても、制振装置据付け現場での工数を削減することができる。しかも、上記補修塗装部分のメンテナンス作業を不要にできるという効果も期待できる。 Moreover, when the steel blocks are welded to form a movable mass as described above, the steel blocks are welded to each other even if the individual steel blocks have been subjected to rust prevention treatment in advance. After the work, it is necessary to repair and weld the welded part as a rust prevention treatment, and it is necessary to fill the gaps between the blocks with an iron putty or the like. In the installation method and the vibration control device used in the method, after the movable mass 8 is manufactured as a single piece at the vibration control device installation site, these operations are not required at all. The number of man-hours can be reduced. In addition, an effect that the maintenance work of the repair coating portion can be eliminated can be expected.
 更に、図5に示したように、既設ビル19の屋上部における対角方向の2個所に、上記可動マス8を水平面内で、x軸方向及びy軸方向の二軸方向に駆動できるようにしてある制振装置Iを設置するようにすると、上記既設ビル19の水平面内での全方位の揺れ方向に対する揺れを速やかに減衰させることができることに加えて、該既設ビル19に捩じり方向に作用する振動をも効果的に減衰させることが可能になる。 Further, as shown in FIG. 5, the movable mass 8 can be driven in two directions in the x-axis direction and the y-axis direction in the horizontal plane at two diagonal positions on the roof of the existing building 19. When the vibration damping device I is installed, the vibration of the existing building 19 in all directions within the horizontal plane can be quickly attenuated, and in addition, the twisting direction of the existing building 19 is twisted. It is possible to effectively attenuate the vibration acting on the.
 次いで、図6及び図7は本発明の実施例の他の形態として、図1乃至図5の実施例と同様の構成としてある制振装置Iの可動マス8の別の実施例を示すもので、図1乃至図5の実施例と同様の構成において、可動マス8を、鋼製枠9と、その内側へ充填するモルタル10と、ウェイト12,12aからなる構成とすることに代えて、鋼製枠9の内側に、高比重の塊状物としての重晶石20と、モルタル10を充填してなる構成の可動マス8としたものである。 6 and 7 show another embodiment of the movable mass 8 of the vibration damping device I having the same configuration as the embodiment of FIGS. 1 to 5 as another embodiment of the present invention. 1 to 5, the movable mass 8 is replaced with a steel frame 9, a mortar 10 filled inside thereof, and weights 12 and 12 a. A movable mass 8 having a structure in which barite 20 as a block having a high specific gravity and a mortar 10 are filled inside the frame 9 is formed.
 詳述すると、上記重晶石20は、硫酸バリウムの結晶であって、その比重が約4.1と、一般のコンクリート用骨材に比して高比重を有している。したがって、上記重晶石20とモルタル10を混合したものは、モルタル10の単体や、一般的なコンクリートに比して同体積で大きな質量を得ることができる。 More specifically, the barite 20 is a barium sulfate crystal and has a specific gravity of about 4.1, which is higher than that of general concrete aggregate. Therefore, what mixed the said barite 20 and the mortar 10 can obtain large mass with the same volume compared with the simple substance of the mortar 10, and general concrete.
 よって、上記の点に鑑みて、本実施例では、本発明の制振装置Iに必要とされる所定の質量を有する可動マス8を、鋼製枠9に、上記重晶石20とモルタル10とを詰めてなる構成とし、これにより、鋼製枠9にモルタル10のみを充填する場合に比して、該所定の質量を有する可動マス8の容積の低減化を図ることができるようにしてある。 Therefore, in view of the above points, in this embodiment, the movable mass 8 having a predetermined mass required for the vibration damping device I of the present invention is attached to the steel frame 9 with the barite 20 and the mortar 10. Thus, the volume of the movable mass 8 having the predetermined mass can be reduced as compared with the case where only the mortar 10 is filled in the steel frame 9. is there.
 その他の構成は図1乃至図5に示したものと同様であり、同一のものには同一の符号が付してある。 Other configurations are the same as those shown in FIGS. 1 to 5, and the same components are denoted by the same reference numerals.
 以上の構成としてある本実施例の既設構造物設置用の制振装置Iを、既設構造物の上部に設置する場合は、図1乃至図5の実施例と同様の手順により、空の鋼製枠9を、上段リニアガイド6及び上段アクチュエータ7、可動フレーム5、下段リニアガイド3及び下段アクチュエータ4、固定フレーム2、並びに、基礎フレーム1を介して既設ビル19の屋上部への設置を行った後、図7に示す如く、上記空の鋼製枠9内へ、ばら状態の重晶石20を投入して詰める。次いで、図7に二点鎖線で示す如く、上記鋼製枠9の内側に、モルタル10を充填して、上記鋼製枠9内に詰めてある上記重晶石20同士の隙間を上記モルタル10で埋めると共に該重晶石20を該モルタル10に埋没させ、この状態で上記鋼製枠9に充填したモルタル10を固化させることで可動マス8を形成させて、上記既設ビル19への制振装置Iの設置を完了するようにする。 When the vibration damping device I for installing an existing structure according to the present embodiment having the above-described configuration is installed on the upper part of the existing structure, an empty steel product is manufactured by the same procedure as the embodiment of FIGS. The frame 9 was installed on the roof of the existing building 19 through the upper linear guide 6 and the upper actuator 7, the movable frame 5, the lower linear guide 3 and the lower actuator 4, the fixed frame 2, and the foundation frame 1. Thereafter, as shown in FIG. 7, loose barite 20 is charged into the empty steel frame 9 and packed. Next, as shown by a two-dot chain line in FIG. 7, the mortar 10 is filled inside the steel frame 9, and the gap between the barite stones 20 packed in the steel frame 9 is defined as the mortar 10. The barite 20 is buried in the mortar 10 and the mortar 10 filled in the steel frame 9 is solidified in this state to form the movable mass 8, thereby damping the existing building 19. Complete installation of device I.
 このように、本実施例によれば、制振装置Iの可動マス8を、鋼製枠9と、その内側へ充填するモルタル10と、重晶石20とからなる構成とすることで、制振装置Iにおいて数十トンもの大きな質量を有することが求められる可動マス8を、既設ビル19へ制振装置Iの構成部材の投入を行うために用いる図示しない移動式クレーンの吊荷の重量制限以内の重量となるように分割する際の分割数を、全体を鋼製とする同質量の可動マスを上記移動式クレーンの吊荷の重量制限以内の重量の鋼製のブロックに分割する場合に比して削減することができる。よって、本実施例によっても、上記図示しない移動式クレーンを用いた既設ビル19への可動マス8の構成部材の現場投入回数を削減できて、該可動マス8の構成部材の現場投入作業を軽減させることができる。 As described above, according to the present embodiment, the movable mass 8 of the vibration damping device I is configured by the steel frame 9, the mortar 10 filled in the inside thereof, and the barite 20. The movable mass 8 that is required to have a mass as large as several tens of tons in the vibration device I is used for loading the components of the vibration control device I into the existing building 19. When dividing the movable mass of the same mass, which is entirely made of steel, into steel blocks with a weight within the weight limit of the suspended load of the mobile crane, Can be reduced. Therefore, also in this embodiment, the number of on-site loading of the constituent members of the movable mass 8 to the existing building 19 using the above-described mobile crane (not shown) can be reduced, and the on-site loading work of the constituent members of the movable mass 8 can be reduced. Can be made.
 したがって、本実施例によっても、前記実施例と同様効果を得ることができる。 Therefore, the present embodiment can provide the same effects as those of the previous embodiment.
 更に、本実施例の鋼製枠9に詰める重晶石20は、高比重であるという点を利用して可動マス8に所定の質量を与えるためのものであると共に、該可動マス8の形状は鋼製枠9により保持させるようにしてあるため、該鋼製枠9内に充填された上記重晶石20とモルタル10の混合物には強度が求められることはなく、上記モルタル10は、鋼製枠9に充填された重晶石20同士の隙間を埋めて、鋼製枠9の内面が風雨等に曝露されることがないようにすると共に、上記重晶石20の位置固定ができるようにしてあればよい。したがって、上記鋼製枠9内における上記重晶石20とモルタル10の分布は均等である必要はなく、上記重晶石20が、モルタル10との比重差によって鋼製枠9の底部寄りに偏在していても何ら問題はない。よって、上記可動マス8を形成する際には、該鋼製枠9内に上記重晶石20と上記モルタル10をそれぞれ充填すればよく、重晶石20を骨材とする重量コンクリートを製造する場合のような重晶石20とモルタル10との均一な混合作業や、上記重晶石20とモルタル10との比重差に起因する偏在を防止するための処理や添加材は全く必要としない。したがって、上記重晶石20のハンドリングを容易なものとすることができて、上記容積の低減化を図った可動マス8を容易に形成することができる。更には、上記重晶石20は、何ら加工を施すことなく、ばらのまま用いることができ、しかも、鋼製枠9内に投入した重晶石20をモルタル10充填前に予め固定する作業は不要にできることから、上記可動マス8の形成に要する手間を削減することが可能になる。 Furthermore, the barite 20 packed in the steel frame 9 of the present embodiment is for giving a predetermined mass to the movable mass 8 by utilizing the high specific gravity, and the shape of the movable mass 8 Is held by the steel frame 9, the mixture of the barite 20 and the mortar 10 filled in the steel frame 9 is not required to have strength. The gap between the barite 20 filled in the frame 9 is filled so that the inner surface of the steel frame 9 is not exposed to wind and rain, and the position of the barite 20 can be fixed. You just have to. Therefore, the distribution of the barite 20 and the mortar 10 in the steel frame 9 does not need to be uniform, and the barite 20 is unevenly distributed near the bottom of the steel frame 9 due to the specific gravity difference with the mortar 10. There is no problem even if you do. Therefore, when forming the movable mass 8, the steel frame 9 may be filled with the barite 20 and the mortar 10, respectively, and heavy concrete using the barite 20 as an aggregate is manufactured. There is no need for any uniform mixing operation of barite 20 and mortar 10 as in the case, or any treatment or additive for preventing uneven distribution due to the difference in specific gravity between barite 20 and mortar 10. Therefore, handling of the barite 20 can be facilitated, and the movable mass 8 in which the volume is reduced can be easily formed. Further, the barite 20 can be used as it is without any processing, and the barite 20 charged in the steel frame 9 is fixed in advance before filling the mortar 10. Since it can be made unnecessary, it is possible to reduce the labor required for forming the movable mass 8.
 更に又、上記重晶石20は鉄に比べて安価であり、加工コストも不要なため、本実施例の既設構造物設置用の制振装置Iのコストを引き下げる効果も期待できる。 Furthermore, since the barite 20 is less expensive than iron and does not require processing costs, it can be expected to reduce the cost of the vibration damping device I for installing the existing structure of this embodiment.
 上記図6及び図7の実施例においては、可動マス8を形成させる際、鋼製枠9に、重晶石20を詰めてからモルタル10を充填するものとして示したが、図8に示す如く、上記鋼製枠9に予め所要量のモルタル10を注入した後、図8に二点鎖線で示すように、該鋼製枠9内へ重晶石20を投入して、該重晶石20をモルタル10との比重差に基いて上記鋼製枠9内のモルタル10へ埋没させるようにしてもよい。更には、上記鋼製枠9へのモルタル10の注入と、重晶石20の投入とを、複数回に分けて交互に行うことで、上記鋼製枠9に重晶石20とモルタル10を充填させるようにしてもよい。 In the embodiment shown in FIGS. 6 and 7, when the movable mass 8 is formed, the steel frame 9 is filled with the barite 20 and then filled with the mortar 10, but as shown in FIG. After injecting a required amount of mortar 10 into the steel frame 9 in advance, as shown by the two-dot chain line in FIG. May be buried in the mortar 10 in the steel frame 9 based on the specific gravity difference with the mortar 10. Furthermore, the injection of the mortar 10 into the steel frame 9 and the charging of the barite 20 are alternately performed in a plurality of times, whereby the barite 20 and the mortar 10 are put into the steel frame 9. You may make it fill.
 この場合にも、ばらで取り扱うことが可能な重晶石20を用いて、既設構造物設置用の制振装置Iの可動マス8を、容積の低減化を図った状態で容易に形成することが可能となる。 Also in this case, by using barite 20 that can be handled in bulk, the movable mass 8 of the vibration damping device I for installing an existing structure can be easily formed in a state where the volume is reduced. Is possible.
 更に、上記重晶石20とモルタル10を予め混合した状態で、同時に上記鋼製枠9に充填させるようにしてもよい。 Furthermore, the steel frame 9 may be filled simultaneously with the barite 20 and the mortar 10 premixed.
 なお、本発明は上記実施例のみに限定されるものではなく、図1及び図3に二点鎖線で示すように、制振装置Iの可動フレーム5に、付加マス21を搭載して、y軸方向には、上記可動フレーム5上にて、可動マス8の質量を往復移動させる一方、x軸方向には、上記可動マス8の質量と、上記可動フレーム5に搭載した付加マス21の質量との和の質量を往復移動させることができるようにしてもよい。このようにすれば、既設ビル19が、平面形状のアスペクト比が大きくて、平面形状の長手方向に比して、該長手方向に直交する方向に揺れ易い構造物である場合に、該既設ビル19に、平面形状の長手方向に上記制振装置Iのy軸方向を沿わせるようにして該既設ビル19に対する制振装置Iの設置を行うことで、既設ビル19の平面形状の長手方向に直交する方向への揺れを、効率よく減衰させることが可能となる。なお、上記可動フレーム5に付加マス21を搭載する場合、該付加マス21は、上端側が開口するボックス構造の鋼製枠に、制振装置据付け現場でモルタルを充填して形成する構成とするか、又は、該付加マス21の質量が比較的小さくて、既設ビル19へ制振装置Iの構成部材の投入を行うために用いる図示しない移動式クレーンの吊荷の重量制限以内の重量に収まるように分割するときの分割数が少なくてすむ場合は、上記付加マス21を、上記図示しない移動式クレーンの吊荷の重量制限以内の重量の鋼製ブロック同士を溶接により接合して形成する構成とすればよい。 In addition, this invention is not limited only to the said Example, As shown by the dashed-two dotted line in FIG.1 and FIG.3, the additional mass 21 is mounted in the movable frame 5 of the damping device I, and y In the axial direction, the mass of the movable mass 8 is reciprocated on the movable frame 5, while in the x-axis direction, the mass of the movable mass 8 and the mass of the additional mass 21 mounted on the movable frame 5. It is also possible to make it possible to reciprocate the mass of the sum. In this way, when the existing building 19 is a structure that has a large planar aspect ratio and is likely to swing in a direction perpendicular to the longitudinal direction as compared to the longitudinal direction of the planar shape, 19 is installed in the longitudinal direction of the planar shape of the existing building 19 by installing the damping device I on the existing building 19 so that the y-axis direction of the damping device I is along the longitudinal direction of the planar shape. It is possible to efficiently attenuate the vibration in the orthogonal direction. When the additional mass 21 is mounted on the movable frame 5, is the additional mass 21 configured to be formed by filling a steel frame having a box structure whose upper end side is open with mortar at the site of vibration damping device installation? Alternatively, the mass of the additional mass 21 is relatively small so that the weight does not exceed the weight limit of the suspended load of the mobile crane (not shown) used for loading the components of the vibration damping device I into the existing building 19. When the number of divisions when dividing into two is small, the additional mass 21 is formed by welding steel blocks having a weight within the weight limit of the suspended load of the mobile crane (not shown) by welding. do it.
 図1乃至図5の実施例において、可動マス8の鋼製枠9内に収納してモルタル10に埋没させるウェイト12,12aの数は、可動マス8に必要とされる質量に応じて適宜増減してもよい、又、鋼製枠9に収納するウェイト12,12aは、必ずしもすべてモルタル10に埋没していなくてもよい。 In the embodiment shown in FIGS. 1 to 5, the number of weights 12 and 12a stored in the steel frame 9 of the movable mass 8 and buried in the mortar 10 is appropriately increased or decreased according to the mass required for the movable mass 8. Alternatively, the weights 12 and 12a stored in the steel frame 9 do not necessarily have to be buried in the mortar 10.
 又、図5及び図7の実施例において、可動マス8の鋼製枠9内に収納してモルタル10に埋没させる重晶石20の量は、可動マス8に必要とされる質量に応じて適宜増減してもよい。又、鋼製枠9に詰めた重晶石20の一部がモルタル10の表面に凹凸として露出されていてもよい。更に、鋼製枠9における重晶石20の充填率を高めることが望まれる場合は、該重晶石20をある程度破砕して粒径を小さくして用いるようにしてもよい。更に又、通常のコンクリート用骨材よりも高比重の塊状物であれば、たとえば、灰溶融炉で生成されるスラグ等、重晶石20以外の高比重の塊状物を鋼製枠9に詰めて用いるようにしてもよい。 5 and 7, the amount of barite 20 stored in the steel frame 9 of the movable mass 8 and buried in the mortar 10 depends on the mass required for the movable mass 8. You may increase / decrease suitably. A part of barite 20 packed in the steel frame 9 may be exposed as irregularities on the surface of the mortar 10. Furthermore, when it is desired to increase the filling rate of barite 20 in the steel frame 9, the barite 20 may be crushed to some extent to reduce the particle size. Furthermore, if it is a lump with a higher specific gravity than ordinary concrete aggregate, a lump with a high specific gravity other than barite 20 such as slag produced in an ash melting furnace is packed in the steel frame 9. May be used.
 可動マス8は、鋼製枠9に、図1乃至図5の実施例におけるウェイト12,12aと、図5及び図7の実施例における重晶石20を所要の割合で収納した後、モルタル10を充填して形成させた構成としてもよい。又、可動マス8は、鋼製枠9にモルタル10のみを充填した構成としてもよい。更には、鋼製枠9に充填するものとしてモルタル10に代えてコンクリートを用いて可動マス8を形成させるようにしてもよい。 The movable mass 8 accommodates the weights 12 and 12a in the embodiment of FIGS. 1 to 5 and the barite 20 in the embodiments of FIGS. It is good also as a structure filled and formed. Further, the movable mass 8 may be configured such that the steel frame 9 is filled with only the mortar 10. Furthermore, the movable mass 8 may be formed by using concrete instead of the mortar 10 as a material filled in the steel frame 9.
 既設ビル19の制振装置据付け個所に水平面が形成してあれば、基礎フレーム1を省略して、上記制振装置据付け個所に、防振ゴム等の防振用部材を介在させた状態で固定フレーム2を直接設置するようにしてもよい。 If there is a horizontal plane at the installation location of the vibration control device of the existing building 19, the foundation frame 1 is omitted and the vibration control device such as anti-vibration rubber is fixed at the installation location of the vibration control device. The frame 2 may be directly installed.
 固定フレーム2上で可動フレーム5をx軸方向に沿って往復駆動できるようにしてあれば、下段リニアガイド3と下段アクチュエータ4の数や配置を変更してもよい。又、上記下段アクチュエータ4は、ラックを可動部とするピニオンラック形式のアクチュエータ、作動ロッドを可動部とする電動や流体圧シリンダ形式のアクチュエータ等、ボールねじ形式のアクチュエータ以外のいかなる形式のアクチュエータを採用してもよい。 If the movable frame 5 can be reciprocated along the x-axis direction on the fixed frame 2, the number and arrangement of the lower linear guides 3 and the lower actuators 4 may be changed. The lower actuator 4 employs any type of actuator other than a ball screw type actuator, such as a pinion rack type actuator having a rack as a movable part, and an electric or hydraulic cylinder type actuator having an operating rod as a movable part. May be.
 可動フレーム5上で可動マス8をy軸方向に沿って往復駆動できるようにしてあれば、上段リニアガイド6と上段アクチュエータ7の数や配置を変更してもよい。又、上記上段アクチュエータ7は、上記下段アクチュエータ4と同様に、ボールねじ形式のアクチュエータ以外のいかなる形式のアクチュエータを採用してもよい。 If the movable mass 8 can be reciprocated along the y-axis direction on the movable frame 5, the number and arrangement of the upper linear guides 6 and the upper actuators 7 may be changed. The upper actuator 7 may employ any type of actuator other than the ball screw type actuator, similar to the lower actuator 4.
 制振装置Iは、固定フレーム2と可動フレーム5との間、及び、可動フレーム5と可動マス8との間に、それぞれ下段アクチュエータ4、及び、上段アクチュエータ7に代えて、所要のばね要素及びダンパ要素を介在させてなるパッシブ形式の制振装置としてもよく、又、固定フレーム2と可動フレーム5との間、及び、可動フレーム5と可動マス8との間に、それぞれ下段アクチュエータ4、及び、上段アクチュエータ7に加えて、所要のばね要素及びダンパ要素を介在させてなるハイブリッド形式の制振装置としてもよい。 The vibration damping device I includes a predetermined spring element and a replacement between the fixed frame 2 and the movable frame 5 and between the movable frame 5 and the movable mass 8 in place of the lower actuator 4 and the upper actuator 7 respectively. It may be a passive type vibration damping device with a damper element interposed between them, and the lower actuator 4 between the fixed frame 2 and the movable frame 5, and between the movable frame 5 and the movable mass 8, respectively. In addition to the upper actuator 7, a hybrid type vibration damping device in which necessary spring elements and damper elements are interposed may be used.
 更に、制振装置Iは、可動マス8を一軸方向にのみ往復移動させる形式の制振装置として往復移動が水平面内の任意の方向を向くように設置してもよい。 Further, the vibration damping device I may be installed as a vibration damping device of a type in which the movable mass 8 is reciprocated only in one axial direction so that the reciprocating movement is directed in an arbitrary direction in the horizontal plane.
 本発明は、既設の構造物であれば、既設ビル19以外のいかなる構造物にも適用できること、その他本発明の要旨を逸脱しない範囲内で種々変更を加え得ることは勿論である。 The present invention can be applied to any structure other than the existing building 19 as long as it is an existing structure, and various modifications can be made without departing from the scope of the present invention.
 本発明は、マス・ダンパ形式の制振装置を既設のビル等の制振対象構造物に後から据付ける場合において、構成点数を削減して移動式クレーンによる可動マスの構成部材の現場投入作業を軽減し、制振装置据付け現場で一体物の可動マスを製作する工数を削減する場合に容易に適用できる。 In the present invention, when a mass damper type vibration damping device is installed later on a structure to be damped such as an existing building, the number of components is reduced, and the construction work of movable mass components by a mobile crane is performed on-site. This can be easily applied to reduce the man-hours for manufacturing a movable mass of an integrated object at the site where the vibration damping device is installed.

Claims (14)

  1.  既設構造物の上部の制振装置据付け現場に、上端側が開口するボックス構造の鋼製枠を、該既設構造物の揺れ方向に往復移動可能に設けた後、該鋼製枠にモルタル又はコンクリートを充填して、上記鋼製枠と該鋼製枠に充填されたモルタル又はコンクリートからなる可動マスを現地で形成して、上記制振装置据付け現場に、該可動マスを上記既設構造物の揺れ方向に往復移動可能に具備してなるマス・ダンパ形式の制振装置を設けるようにすることを特徴とする既設構造物用制振装置設置方法。 At the installation site of the vibration control device on the upper part of the existing structure, a box-shaped steel frame with an open upper end is provided so that it can reciprocate in the shaking direction of the existing structure, and then mortar or concrete is placed on the steel frame. Filling and forming the steel frame and a movable mass made of mortar or concrete filled in the steel frame at the site, the movable mass is placed on the vibration control device installation site, the shaking direction of the existing structure A damping device installation method for an existing structure, characterized in that a mass damper type damping device is provided in such a manner as to be reciprocally movable.
  2.  既設構造物の上部の制振装置据付け現場に、上端側が開口するボックス構造の鋼製枠を、水平面内の任意の方位へ往復移動可能に設けた後、該鋼製枠にモルタル又はコンクリートを充填して、上記鋼製枠と該鋼製枠に充填されたモルタル又はコンクリートからなる可動マスを現地で形成して、制振装置据付け現場に、該可動マスを水平面内の任意の方位へ往復移動可能に具備してなるマス・ダンパ形式の制振装置を設けるようにすることを特徴とする既設構造物用制振装置設置方法。 At the installation site of the damping device above the existing structure, a box-shaped steel frame with an opening at the upper end is installed so that it can reciprocate in any direction in the horizontal plane, and then the steel frame is filled with mortar or concrete Then, a movable mass made of the steel frame and mortar or concrete filled in the steel frame is formed on-site, and the movable mass is reciprocated in an arbitrary direction in a horizontal plane at the vibration control device installation site. A damping device installation method for an existing structure, characterized in that a mass damper type damping device is provided.
  3.  既設構造物の制振装置据付け現場に設けた鋼製枠に、制振装置の構成部材の投入に使用する移動式クレーンの吊荷の重量制限の範囲内となる重量の鋼製のウェイトを収納した後、上記鋼製枠にモルタル又はコンクリートを充填して可動マスを形成するようにする請求項1又は2記載の既設構造物用制振装置設置方法。 The steel weight provided at the installation site of the vibration control device for the existing structure contains a steel weight with a weight that is within the weight limit of the suspended load of the mobile crane used to load the components of the vibration control device. The vibration damping device installation method for an existing structure according to claim 1 or 2, wherein the movable mass is formed by filling the steel frame with mortar or concrete.
  4.  既設構造物の制振装置据付け現場に設けた鋼製枠に、高比重の塊状物と、モルタル又はコンクリートとを、同時にあるいは所要の順序で充填して可動マスを形成するようにする請求項1記載の既設構造物用制振装置設置方法。 2. A steel frame provided at an installation site of a vibration damping device for an existing structure is filled with a block having a high specific gravity and mortar or concrete simultaneously or in a required order to form a movable mass. The vibration control apparatus installation method for existing structures as described.
  5.  既設構造物の制振装置据付け現場に設けた鋼製枠に充填する高比重の塊状物として、重晶石又はスラグを用いるようにする請求項4記載の既設構造物用制振装置設置方法。 The vibration damping device installation method for an existing structure according to claim 4, wherein barite or slag is used as the high specific gravity block filled in the steel frame provided at the installation site of the vibration damping device for the existing structure.
  6.  既設構造物の制振装置据付け現場に設けた鋼製枠に、高比重の塊状物と、モルタル又はコンクリートとを、同時にあるいは所要の順序で充填して可動マスを形成するようにする請求項2記載の既設構造物用制振装置設置方法。 3. A steel frame provided at a site where a vibration damping device for an existing structure is installed is filled with a block having a high specific gravity and mortar or concrete simultaneously or in a required order to form a movable mass. The vibration control apparatus installation method for existing structures as described.
  7.  既設構造物の制振装置据付け現場に設けた鋼製枠に充填する高比重の塊状物として、重晶石又はスラグを用いるようにする請求項6記載の既設構造物用制振装置設置方法。 The vibration damping device installation method for an existing structure according to claim 6, wherein barite or slag is used as the high specific gravity block filled in the steel frame provided at the installation site of the vibration damping device for the existing structure.
  8.  可動マスを、制振対象構造物の揺れに応じて往復移動させることにより該制振対象構造物の制振を行うようにしてある制振装置において、上端側が開口するボックス構造の空の鋼製枠を、制振対象構造物となる既設構造物の上部の制振装置据付け現場に、該既設構造物の揺れ方向に往復移動可能に設け、更に、該鋼製枠にモルタル又はコンクリートを充填して可動マスを形成してなる構成を有することを特徴とする制振装置。 In a vibration damping device configured to reciprocate the movable mass by reciprocating the movable mass in response to the vibration of the structural object to be damped, the box structure is made of empty steel with an upper end opened. A frame is provided at the installation site of the vibration damping device on the upper part of the existing structure to be a vibration control target structure so as to be able to reciprocate in the shaking direction of the existing structure, and the steel frame is filled with mortar or concrete. A vibration damping device having a configuration in which a movable mass is formed.
  9.  可動マスを、制振対象構造物の揺れに応じて往復移動させることにより該制振対象構造物の制振を行うようにしてある制振装置において、上端側が開口するボックス構造の空の鋼製枠を、制振対象構造物となる既設構造物の上部の制振装置据付け現場に、水平面内の任意の方位へ往復移動可能に設け、更に、該鋼製枠にモルタル又はコンクリートを充填して可動マスを形成してなる構成を有することを特徴とする制振装置。 In a vibration damping device configured to reciprocate the movable mass by reciprocating the movable mass in response to the vibration of the structural object to be damped, the box structure is made of empty steel with an upper end opened. A frame is provided at the installation site of the damping device above the existing structure that is the structure to be damped so that it can reciprocate in any direction within the horizontal plane, and the steel frame is filled with mortar or concrete. A vibration damping device having a configuration in which a movable mass is formed.
  10.  可動マスを、既設構造物に設けた空の鋼製枠に、制振装置の構成部材の投入に使用する移動式クレーンの吊荷の重量制限の範囲内となる重量の鋼製のウェイトを収納し、更に、上記鋼製枠にモルタル又はコンクリートを充填してなる構成とした請求項8又は9記載の制振装置。 The movable mass is housed in an empty steel frame provided in the existing structure, and steel weights with a weight that is within the weight limit of the suspended load of the mobile crane used for loading the components of the vibration control device are stored. Furthermore, the vibration damping device according to claim 8 or 9, wherein the steel frame is filled with mortar or concrete.
  11.  可動マスを、既設構造物に設けた空の鋼製枠に、高比重の塊状物と、モルタル又はコンクリートとを充填してなる構成とした請求項8記載の制振装置。 9. The vibration damping device according to claim 8, wherein the movable mass is configured by filling an empty steel frame provided in an existing structure with a block having a high specific gravity and mortar or concrete.
  12.  既設構造物に設けた空の鋼製枠に充填する高比重の塊状物を、重晶石又はスラグとした請求項11記載の制振装置。 12. The vibration damping device according to claim 11, wherein the block having a high specific gravity filled in an empty steel frame provided in the existing structure is barite or slag.
  13.  可動マスを、既設構造物に設けた空の鋼製枠に、高比重の塊状物と、モルタル又はコンクリートとを充填してなる構成とした請求項9記載の制振装置。 10. The vibration damping device according to claim 9, wherein the movable mass is configured by filling an empty steel frame provided in an existing structure with a block having a high specific gravity and mortar or concrete.
  14.  既設構造物に設けた空の鋼製枠に充填する高比重の塊状物を、重晶石又はスラグとした請求項13記載の制振装置。 14. The vibration damping device according to claim 13, wherein the high specific gravity block filled in an empty steel frame provided in the existing structure is barite or slag.
PCT/JP2009/000990 2008-03-10 2009-03-05 Vibration control device installation method for existing structures and vibration control device used in said method WO2009113277A1 (en)

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CN105804429A (en) * 2016-05-11 2016-07-27 林江梅 Multi-purpose gap grouting device
CN105926968A (en) * 2016-05-11 2016-09-07 青岛斯蒂朗机电设备有限公司 Noise-reducing grouting device with fluid control valve
CN105926967A (en) * 2016-05-11 2016-09-07 青岛斯蒂朗机电设备有限公司 Solar seam grouting device
CN105952176A (en) * 2016-05-11 2016-09-21 青岛斯蒂朗机电设备有限公司 Controllable damping type building slit grouting device
CN106013829A (en) * 2016-05-11 2016-10-12 林江梅 Gap grouting device with controllable grouting speed
CN106013830A (en) * 2016-05-11 2016-10-12 青岛斯蒂朗机电设备有限公司 Gap grouting device used for building
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