JP2000120772A - Method and structure for arrangement of vibration control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To arrange vibration control devices on a roof of a building even after completion of construction in a short period. SOLUTION: An attachment base 12 is previously fixed to a beam 11 of a frame body for attaching vibration control devices A to D irrespective of arrangement plan of the vibration control devices. An upper surface 12a of the attachment base is lower than a surface 14a of a roof 14, while a clearance 16 is formed therearound by cutting a roof member 15. In the case without the vibration control device, a cover body 17 as a protection member is arranged on the upper portion of the attachment base 12, and a waterproof laye 18 is formed thereon for the use of a normal roof. In another case, a heavy weight 1 composing the vibration control device is formed on a plate. The upper surface of the vibration control device adopting the weight has the same level as the surface of the roof. A height adjusting mechanism 20 is arranged on the attachment base 12, for securing the horizontal of the heavy weight 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an advantageous installation method and installation structure for installing a vibration damping device on the roof of a building such as a low-rise building.

[0002]

2. Description of the Related Art In general houses, low-rise commercial buildings, apartment buildings, and other buildings, vibration dampers having weights are installed on the roof to reduce vibrations caused by earthquakes and winds, and vibrations caused by running of automobiles and the like. Some are configured as follows. In such a building, the vibration applied from the outside can be reduced to improve the livability.

[0003] The weight constituting the vibration damping device has a relatively large weight, and the building in which such a vibration damping device is installed is configured such that the frame can also support the weight. For this reason, when installing a vibration damping device in a building, it is common to install it simultaneously with the construction of the building.

[0004]

As described above, vibration damping devices are generally installed at the same time as building construction.
When a new vibration damping device is installed after the building is completed, there is a problem that a cost and a period for reinforcing the skeleton are required. In particular, it is difficult to accurately predict living vibrations in advance, so that the tuning damper may be installed later. In addition, it is difficult to adjust later with a built-in ceiling type vibration damping device, but in the case of small buildings such as houses, the vibration characteristics of the building change due to the arrangement and layout of heavy objects inside, so it may be installed afterwards .

An object of the present invention is to provide a method of installing a vibration damping device which can be installed easily and in a short time even if the vibration damping device is installed after a period of time after building. , Installation structure.

[0006]

In order to solve the above-mentioned problems, a method of installing a vibration damping device according to the present invention is a method of installing a vibration damping device on a roof of a building. A mounting base for the mounting base is arranged so that the upper surface of the mounting base is lower than the surface of the roof, and is fixed to a building frame. A vibration damping device is attached to the table.

In the method of installing the vibration damping device, the mounting stand for mounting the vibration damping device is fixed to the building frame with the upper surface being lower than the roof surface, and The surrounding and upper roofing materials are missing. For this reason, the vibration damping device can be easily attached to the mounting table,
Installation of the vibration damping device on the rooftop becomes easy.

[0008] In the above installation method, when the vibration damping device is not mounted on the mounting base, a protective material whose upper surface is flush with the surface of the roof is arranged above the mounting base, and the vibration damper is mounted on the mounting base. It is preferable to remove the protective material when installing the device.

As described above, when the vibration damping device is not mounted, by arranging the protective material such that the upper surface thereof is flush with the surface of the roof, an extra thing is projected on the roof. When it becomes necessary to install the vibration damping device, the protection member is removed to expose the mounting base, so that the vibration damping device can be easily attached. When removing the vibration damping device already installed, the vibration damping device is detached from the mounting base, and then a protective material is disposed on the mounting base to be used as a roof.

In the above-mentioned installation method, it is preferable that the weight forming the vibration damping device is formed in a thin flat plate shape, and that the upper surface of the vibration damping device is flush with the surface of the roof. The elastic body for vibration damping is directly connected to the flat weight constituting the vibration damping device, and when the elastic body for vibration damping is mounted on the mounting base, the height adjusting mechanism provided on the mounting base is used to control the vibration damping apparatus. It is preferable to configure so as to maintain the level.

As described above, the weight of the damping device is formed in a flat plate shape so that the upper surface of the entire damping device is flush with the surface of the roof. When installed, the damping device does not protrude from the surface of the roof, and can provide a damping function without impairing the appearance. In addition, when the vibration damping device is mounted, the height adjustment mechanism provided on the mounting base is configured to be able to maintain the level, thereby facilitating the mounting operation and the leveling operation when installing the vibration damping device on the roof. .

The installation structure of the vibration damping device according to the present invention is
Fix the mounting base to the building frame in advance so that the top surface is lower than the rooftop surface, and use a protective material with the top surface flush with the rooftop surface without providing rooftop materials around and above the mounting base. When the vibration damping device is installed, the protection member is removed to expose the mounting base, and the vibration damping device can be installed on the exposed mounting base.

[0013] In the above installation structure, after the building is constructed, the vibration damping device can be installed when the necessity arises without a significant increase in cost and an increase in the period. Further, in a state where the vibration damping device is not installed, there is nothing protruding on the surface of the roof, and the roof can be used without any difference from a normal roof. Then, when the already installed vibration damping device is removed, it can be easily returned to the normal roof without protrusions.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The installation structure of a vibration damping device according to the present invention will be described below with reference to the drawings, and an installation method will be described. FIG. 1 is a cross-sectional view showing an installation structure of a vibration damping device according to the present invention, FIG. 2 is a diagram illustrating a state in which a vibration damping device having a casing is mounted on a mounting base, and FIG. FIG. 4 is a diagram illustrating a state in which a vibration device is attached, FIG. 4 is a diagram illustrating a rooftop configuration configured to be able to install a vibration control device having a flat weight, and FIG. 5 is a diagram illustrating a flat weight. A diagram illustrating a state where a vibration damping device is installed,
FIG. 6 is a diagram illustrating some examples of a vibration damping device having a weight.

In the method of installing a vibration damping device according to the present invention, a mounting table used when installing the vibration damping device is fixed to a frame, and the vibration damping device is installed before or before the vibration damping device is installed. After removing the vibration damping device that had been removed, place a protective material on the top of the mounting base and apply a predetermined waterproof construction to use it as a normal rooftop, and when installing a vibration damping device, attach the mounting base. The vibration damping device is mounted on the mounting base by being exposed.

As described above, regardless of the presence or absence of the vibration damping device, the mounting base for mounting the vibration damping device is fixed to the frame and the upper surface of the mounting base is arranged lower than the surface of the roof. Therefore, it is possible to install the vibration damping device and to remove the already installed vibration damping device as necessary.For example, it becomes necessary to install the vibration damping device in accordance with changes in the surrounding environment. In such a case, it is possible to respond in a short period of time.

First, prior to describing the installation structure of the vibration damping device according to this embodiment, the structure of a typical vibration damping device will be described with reference to FIG. The vibration damping device shown in FIG.
Between the weight and the frame of the building.
Are interposed. The weight 1 is configured to have a predetermined weight corresponding to the size, height and shape of the target building, and the shape thereof is a hexahedral flat plate and is specified in two orthogonal directions which are the vibration directions. It is configured to be able to vibrate at an amplitude of. When vibrations due to an earthquake or wind, or vibrations caused by running of an automobile or the like act on the building, the vibrations can be reduced by the inertia of the weight 1.

A vibration damping device A shown in FIG. 6A is configured such that an elastic body 2 made of rubber or the like is directly connected to a weight 1 and the elastic body 2 is attached to a building. In this vibration damping device, the structure is simple because the elastic body 2 has a restoring force and a damping property. And when vibrations act on the building,
The vibration is transmitted to the weight 1 via the elastic body 2 to move the weight 1 to generate a damping force, thereby reducing the vibration. The vibration damping device A is installed in a building by fixing a leg-like mounting base to a building frame and attaching the elastic body 2 to the mounting base.

In the vibration damping device B shown in FIG. 1B, the weight 1 is suspended by a member (not shown) on the frame 3, and an elastic body 2 made of a spring attached to the frame 3 comes into contact with an end. Is energizing. A damping tank 4 that exhibits a damping function is provided below the weight 1. When a vibration is applied to the building, the vibration is transmitted to the elastic body 2, and the weight 1 moves to generate a vibration damping force, thereby reducing the vibration. The vibration damping device B is installed by fixing the frame 3 to a building frame.

A vibration damping device C shown in FIG. 1C is one in which a vibration damping device B having an elastic body 2 made of the spring and a damper 4 is housed in a casing 5, and is similar to the vibration damping device B. Has functions. In the vibration damping device C, the frame 3 is installed by fixing the frame 3 to the building frame via the casing 5.

The above-described vibration damping devices A to C are installed by fixing leg-shaped or plate-shaped mounting bases to the frame and mounting the elastic body 2 or the frame 3 to these mounting bases. It is possible to In other words,
When the vibration damping device is installed, it is possible to fix the leg-shaped mounting base to the upper flange of the H-shaped steel constituting the beam on the roof, or to directly use the upper flange.

Next, the mounting structure of the vibration damping device will be described with reference to FIGS. Note that any of the above-described damping devices A to C may be used as the damping device shown in the drawing. However, in the present embodiment, a case will be described in which the vibration damping device C having the casing 5 is installed.

As shown in the figure, a beam corresponding to the roof of the building
11, a mounting base 12 is arranged and fixed at a position corresponding to the position where the vibration damping device is installed. Mounting stand 12
When the beam 11 is made of an H-section steel, the upper flange of the H-section steel
11a is fixed by a fastening member 13 such as a bolt.
The mounting base 12 has a structure of a vibration damping device mounted on an upper portion, for example, the vibration damping device is configured by directly connecting an elastic body 2 such as rubber below the weight 1 so that the elastic body 2 is mounted on the mounting base 12. , Or having a frame 3 or a casing 5 and arranged at a plurality of positions.
It is fixed to.

As described above, the mounting table 12 includes a leg-shaped mounting table and a plate-shaped mounting table, and can be selectively used according to the structure of the vibration damping devices A to C. However, the mounting base formed in the shape of a leg can be used regardless of the structure of the vibration damping device.
12 is a leg-shaped one.

The upper surface 12a of the mounting base 12 is set to be lower than the surface 14a of the roof 14. Further, the periphery and the upper part of the mounting base 12 are roof materials 15 (ALC panels in this embodiment).
Are missing without being placed, and therefore
A void 16 is formed around the periphery. In particular, the roof is not constructed with the roof material 15 exposed, but is constructed by laying a waterproof sheet on the upper surface of the roof material and casting a waterproof mortar or the like. For this reason,
The upper surface of 12 is preferably lower than the upper surface of rooftop material 15.

On the upper surface 12a of the mounting base 12, a cover 17 serving as a protective material is arranged.
16 are covered. The lid 17 is attached to the building with vibration damping devices A to
When C is not installed, the mounting base 12 and the gap 16 formed around the mounting base 12 are protected, and the mounting base 12 is removed when the vibration damping devices A to C are installed. .
In addition, as a protective material for protecting the mounting base 12, a cover
The mortar is not limited to 17 and may be mortar filling the gap 16, and when the mounting base is formed in a plate shape, the ALC plate material, the synthetic resin plate material, It is also possible to use a body or the like.

As described above, the mounting base 12 is attached to the beam 11 in advance, and the roof member 15 around and around the mounting base 12 is removed, and the cover 17 serving as a protective material is provided above the mounting base 12.
To form the waterproof layer 18 so that the mounting base 12
Is covered with the waterproof layer 18 and cannot be seen from outside. Therefore, it can be used without any difference from a normal rooftop.

When installing the vibration damping device C on the roof of a building,
The waterproof layer 18 is partially removed to expose the lid 17, and the lid 17 is further removed to expose the mounting base 12 fixed to the beam 11 in advance. Then, the upper member 12b is welded directly to the exposed mounting table 12 or to the mounting table 12 already fixed, or as shown in FIG. By forming the member 12b as a male screw member and screwing them together, a new mount 19 is fixed to the beam 11 instead of the mount 12, and the casing 5 of the vibration damping device C is fixed to a bolt or the like. By attaching with a fastening member, it is possible to install the vibration damping device C on the roof of the target building.

Further, after the vibration damping device C is mounted on the mounting base 12 or the mounting base 19, the waterproof layer 18 is reconstructed by covering the gaps 16 formed around the mounting bases 12 and 19, and thereby the rainfall is reduced. After that, it is possible to install the vibration damping device C.

In particular, when attaching the damping devices A to C to the mounting base 12, it is necessary to maintain the level of the damping devices A to C. For this reason, a height adjusting mechanism 20 is provided on the mounting base 12, and by operating the height adjusting mechanism 20, the horizontal configuration of the vibration damping devices A to C can be guaranteed.

The structure of the height adjusting mechanism 20 is not particularly limited. For example, a configuration is possible in which a bolt 20a is screwed into a screw hole formed in a lower flange 12d of the mounting base 12, and the height of the mounting base 12 can be adjusted by rotating the bolt 20a. Then, after adjusting the mounting base 12 to a predetermined height, by tightening the nut 20b screwed to the bolt 20a, it is possible to prevent loosening and to guarantee horizontality of the vibration damping devices A to C.

When the vibration damping device incorporated in the casing 5 is an AMD (Active Mass Damper), the weight 1 must be driven by a motor or the like. It is preferable that wires such as signal codes to be transmitted are wired in advance at a position different from the mounting base.

When the already installed vibration damping device is removed, the lid 17 is disposed on the mounting
After protecting the air gap 17 formed around the mounting base 12 and the mounting base 12, by forming the waterproof layer 18 on the top of the lid 17, it can be used as a normal roof without any protrusions. .

FIG. 3 is a view for explaining a structure in a case where a vibration damping device A in which an elastic body 2 such as rubber is directly connected to the lower part of the weight 1 is attached to the mounting base 12. In the drawings, the same portions and portions having the same functions as those of the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted.

As shown in the drawing, one surface of an elastic body 2 is fixed to a flange 1a provided below the weight 1 and the other surface of the elastic body 2 is attached to an upper flange 12c of the mounting base 12. It is fixed. Further, since the vibration damping device A does not have a casing, the vibration damping device A is entirely covered by the cover 21.

When the vibration damping device A is installed on the roof of a target building, the waterproof layer 18 of the roof 14 is partially removed to expose the lid 17 and the lid 17 in the same manner as in the above-described embodiment. To secure the elastic body 2 to the upper flange 12c provided at the upper end of the mounting base 12, and operate the height adjusting mechanism 20 to ensure the level of the vibration damping device A. It is possible to install in.

4 and 5 show a vibration damping device D in which a weight 1 on a flat plate is built in a casing 5 and an elastic body 2 such as rubber is interposed between the weight 1 and the casing 5. FIG. 9 is a diagram illustrating a configuration in the case.

In the drawing, a casing 5 is formed in the same manner as a roof material 15 constituting a roof 14 in plan dimensions and thickness. That is, when the roof material 15 is an ALC panel, the casing 5 is formed with the same plane size and thickness as the roof ALC panel, and the height of the elastic body 2 is added to the thickness of the weight 1. The dimensions are formed thinner than the thickness of the ALC panel. The casing 5 has a box shape having sufficient strength to support the weight 1.

The casing 5 includes an upper flange 11 for the beam 11.
a while being placed on the upper flange 11a, the upper flange 11a is fastened and fixed by a fastening member (not shown). Therefore, in this embodiment, the upper flange 11a of the beam 11 has a function as a mounting base.

As described above, since the casing 5 is formed in the shape of a box-shaped container, when the weight 1 is disposed on the casing 5 and the vibration damping device D is not formed, the protective material is provided on the upper part of the casing 5. By disposing the lid 5a to cover the internal space of the casing 5 and further applying the waterproof layer 18 on the top of the lid 5a, the casing 5 can be used as a normal roof without exposing the casing 5. It is.

Further, the waterproof layer 18 is removed to expose the lid 5a and the lid 5a is opened, and the weight 1 having the elastic body 2 directly connected thereto is disposed in the lower part of the inner space of the casing 5 to adjust the height. It is possible to install the vibration damping device D by operating the mechanism 20 to ensure the level of the weight 1. After the vibration damping device D is configured inside the casing 5, the casing 5 is again closed by the lid 5 a. By covering the upper part of the above, regardless of the upper surface of the vibration damping device D is arranged at a level substantially equal to the surface of the rooftop,
Inspection of the inside and replacement of members can be easily performed.

The casing 5 is formed in the shape of a box-shaped container, and is arranged on the roof 14. For this reason, it is necessary that the casing 5 itself has no water leakage. In this case, in order to effectively use the internal space of the casing 5, the casing 5 can be used as a flower bed or a pond, or can be used as a storage space.

[0043]

As described above in detail, in the method of installing the vibration damping device according to the present invention, the upper surface of the mounting base for mounting the vibration damping device is previously lower than the surface of the roof and fixed to the frame. In addition, when the vibration damping device is not installed by removing the roof material around and above the mounting base, the protective material can be disposed on the mounting base to be used as a normal roof. Then, when it becomes necessary to install the vibration damping device, by removing the protective material and exposing the mounting base, the vibration damping apparatus can be mounted on the mounting base.

For this reason, when the damping device is not required at the time of construction and the damping device is needed due to circumstances around the building, a part of the roof can be processed easily and quickly. A vibration damping device can be installed in In addition, even if the already installed vibration damping device is removed, it is possible to use it as a normal roof without protrusions by arranging the protective material on the top with the mounting base fixed to the skeleton. .

When the vibration damping device is mounted on the mounting table, the level of the vibration damping device can be assured by operating the height adjusting mechanism provided on the mounting table, and the vibration can be reduced rationally. I can do it.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an installation structure of a vibration damping device according to the present invention.

FIG. 2 is a diagram illustrating a state where a vibration damping device having a casing is mounted on a mounting base.

FIG. 3 is a diagram illustrating a state where a vibration damping device having no casing is mounted on a mounting base.

FIG. 4 is a diagram illustrating a rooftop configuration configured to be able to install a vibration damping device having a flat weight.

FIG. 5 is a diagram illustrating a state in which a vibration damping device having a flat weight is installed.

FIG. 6 is a diagram illustrating some examples of a vibration damping device having a weight.

[Explanation of symbols]

 A to D Vibration control device 1 Weight 1a Flange 2 Elastic body 3 Frame 4 Damper 5 Casing 11 Beam 11a Upper flange 12, 19 Mounting base 13 Fastening member 14 Roof 14a Surface 15 Roof material 16 Void 17 Lid 18 Waterproof layer 20 Height Adjustment mechanism 20a Bolt 20b Nut 21 Cover

Claims (5)

[Claims] 1. A method of installing a vibration damping device on a roof of a building, wherein a mounting base for mounting the vibration damping device is arranged in advance so that the upper surface of the mounting base is lower than the surface of the roof. A method of installing a vibration damping device, comprising fixing a vibration damping device to the mounting base while fixing the roofing material around and at the top of the mounting base while being fixed to a building frame. 2. When the vibration damping device is not mounted on the mounting base, a protective material having an upper surface flush with the surface of a roof is arranged above the mounting base, and the vibration damping device is mounted on the mounting base. A method of installing a vibration damping device, comprising removing a protective material. 3. The vibration control device according to claim 1, wherein the weight constituting the vibration damping device is formed in a thin plate shape, and the upper surface of the vibration damping device is flush with a rooftop surface. A method for installing the vibration damping device according to claim 2. 4. A vibration-damping elastic body is directly connected to a flat weight constituting a vibration-damping device, and when the vibration-damping elastic body is attached to a mounting table, a height adjusting mechanism provided on the mounting table is used. The method for installing a vibration damping device according to any one of claims 1 to 3, wherein the vibration damping device is configured to be kept horizontal. 5. A mounting base is fixed to a building body in advance so that an upper surface is lower than a roof surface, and the upper surface is flush with the roof surface without providing a roof material around and above the mounting base. A protective material to be arranged is arranged, and when the vibration damping device is installed, the protective material is removed and the mounting base is exposed, and the vibration damping device can be installed on the exposed mounting base. Characteristic installation structure of vibration damping device.