JP3377770B2 - How to build a damping structure - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a vibration damping structure, and more particularly to a composite vibration damping method using a hysteresis damping type damper and a viscous damping type damper. Related to the construction method of the structure. BACKGROUND OF THE INVENTION In general,
2. Description of the Related Art As a damper for damping vibration, a damper with hysteresis damping and a damper with viscous damping are known. [0003] The hysteresis damping type damper is attached to an intermediate portion of a column, and when a large earthquake occurs, the damper portion undergoes plastic deformation to absorb the earthquake input energy. [0004] It is known that a large plastic deformation is required for the hysteresis damping type damper to exhibit its effect, and the effect is small for vibrations caused by wind sway or the like. On the other hand, it is known that the viscous damping type damper is effective for suppressing the vibration of the building against wind sway or small earthquake. [0006] The viscous damping addition type damper referred to here is, for example, an oil damper or a viscoelastic damper, and has a characteristic that the damping force depends on the speed. Therefore, in order to efficiently absorb the vibration energy of a building from a small amplitude to a large amplitude, it is effective to arrange a damper with a history damping and a damper with a viscous damping. However, if the hysteresis damping type damper and the viscous damping type damper are arranged as dampers for vibration damping, the number of arrangements increases and the occupied area of the device on the building surface increases, which hinders construction planning. . For example, in the case of a high-rise building, a damper for damping vibration is incorporated in the structure of the core portion, and an evacuation stair, an elevator, a storage, or the like is often provided in this core portion. If a damping damper having a large occupied area is incorporated into the structure of the core portion, it may be difficult to secure a space for an entrance on the structure. An object of the present invention is to mount a hysteresis damping type damper and a viscous damping type damper in a state where the occupied area of the device on the surface is concentrated, to secure a space on the surface, and to arrange the devices rather than individually. The number can be reduced,
Moreover, a vibration control structure that can efficiently absorb the vibration energy of the building from small to large amplitudes is efficiently constructed.
To provide a method of building a damping structure that can be built
It is in. [0012] In order to achieve the above object, a method of constructing a vibration damping structure according to the present invention comprises a plurality of blocks in a space surrounded by upper and lower beams and left and right columns of a building. A method for constructing a vibration damping structure incorporating a hysteresis damping addition type damper and a viscous damping addition type damper using an attachment member made of a shape member, wherein at least one of the hysteresis damping addition type damper and the viscous damping addition type damper is provided. The lower block-shaped member to be attached is previously attached to the upper surface of a lower beam, and in this state, a step of constructing the lower beam, and an upper side to which at least the other of the hysteresis damping additional damper and the viscous damping additional damper is attached the advance is attached to the lower surface of the previously upper beam block member, in this state, a step of constructing said on the beam, the lower and upper block-like member Less
And the hysteresis damping addition type damper on one side.
Connected to one of the lower and upper beams via a mounting member
The other of the lower and upper block-shaped members
One end of said viscous damping additional damper mounted on the other end
Mounting portion for the damper directly or with the hysteresis damper
Indirectly attaching to the other of the lower beam and the upper beam via a material . [0016] [0021] [0021] [0021] [0021] The following is an example of the present invention. According to [0030] the present invention, the attachment member when building a lower beam
Constructs a lower block-shaped member constituting at the same time, to construct the upper block-like member during construction of the upper beam at the same time, hysteretic damping addition type dampers and in addition the state where the lower and upper block-like member attached By attaching the viscous damping addition type damper, it is possible to efficiently construct a heavy attachment member and each damper. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIGS. 1 to 5 show a vibration damping structure according to a first embodiment of the present invention. FIG. 1 is a schematic cross-sectional view of a building using the vibration damping structure according to the present invention. As shown in FIG. An evacuation stair 16 is provided inside the core 14. The core 14 may be provided with, for example, an elevator or a storage. The structure 18 of the core 14 is provided with a vibration damping structure 20. As shown in FIG. 1, the vibration damping structure 20
A hysteresis damping type damper 28 and a viscous damping type damper 30 are incorporated in a structure 18 formed by a pair of left and right columns 22, a lower beam 24 and an upper beam 26. The hysteresis damping type damper 28 is what is called a vibration control panel. As shown in FIG. 3, a shear panel 34 is provided between a pair of upper and lower base plates 32a, and the shear panel 34 is connected to a plurality of vertical panels. It is reinforced by the flange 36 and the lateral rib 38, and the shear panel 34 yields due to the shear force generated between the layers, so that the energy at the time of shearing can be absorbed. Note that, depending on the size of the area of the shear panel 34, the horizontal rib 38 may not be required. As a mounting method, as shown in FIG.
The base plate 32a and the mounting plate 32b of the first mounting member 40 are joined with bolts 32c or as shown in FIG.
As shown in (2), the flange 32d and the web 32e for mounting are projected from the base plate 32a, and similarly, the flange 32h and the web 32i are also projected from the mounting plate 32 of the first mounting member 40, and the joining plate is 32f can be joined by bolts 32g. In this manner, the base plate 32a
Even if is slightly deformed, smooth replacement and attachment are possible. In this embodiment, as shown in FIG. 3A, the base plate 32a and the vertical flange 36 are formed to be thicker than the horizontal ribs 38 so as to be able to bear the axial force. By preventing the component force acting on the column 22 in the vertical direction during the deformation of the frame from acting as a shearing force on the upper beam 26,
It is designed to be able to resist the shearing force without making the beam large. The viscous damping type damper 30 has a characteristic that the damping force of an oil damper or a viscoelastic damper depends on the speed. For example, the oil damper can absorb vibration energy due to the viscosity of oil provided inside. The viscoelastic damper can absorb vibration energy by an internal viscoelastic member. The hysteresis damping type damper 28
The first mounting member 40 and the common mounting member 42 are mounted over the lower beam 24 and the upper beam 26, and the first mounting member 40 includes two block members 40a and 40b made of steel frames. Then, the hysteresis damping addition type damper 28 includes the block-shaped members 40a, 40a.
b. The common mounting member 42 is constituted by a single steel block member. The viscous damping type damper 30 is mounted on the upper beam 26 by the second mounting member 44 and the common mounting member 42. The second mounting member 44 comprises three block members 44a, 44b, 44c made of steel. One end of the viscous damping addition type damper 30 is mounted on the block member 44c, and the other end is connected to the block member 44c. 1 mounting member 4
0 is attached to the block-shaped member 40a. The block members 40a, 40b, 4
4a, 44b, 44c are mounted to extend vertically between the lower beam 24 and the upper beam 26, between the first mounting member 40 and the left column 22, and between the second mounting member 44 and the right side. A space 46 extending over the entire height of the lower beam 24 and the upper beam 26 is attached to both sides of the evacuation stairs 16 so that the space 46 can be used as a necessary opening such as an entrance to the evacuation stairs 16. ing. Further, in this vibration damping structure, the hysteresis damping type damper 28 and the viscous damping type damper 30 are arranged in parallel, and the shear force generated between the layers is reduced by the hysteresis damping type damper. The flow of the force passing through the damper 28 and the flow of the force passing through the viscous damping type damper 30 are separated. The energy damping effects of the hysteresis damping type damper 28 and the viscous damping type damper 30 are shown in comparison with FIG. The viscous damping type damper 30 exerts a great effect in the event of a wind turbulence or a small earthquake, and the hysteretic damping type damper 28 exerts a great effect in a large earthquake. With this arrangement, when the building is deformed due to an earthquake or the like, the damping effect can be effectively exerted in different areas, and the arrangement is economical. FIG. 4 shows a state in which the damping structure 20 is arranged on the plane 18 of each layer. In (1), the damping structure 20 is arranged at the center of the plane 18 in the left-right direction. 3 shows a state in which spaces 46 are arranged on both sides of the vibration damping structure 20, respectively. FIG. 2B shows a state where one side of the vibration damping structure 20 of the construction surface 18 is largely secured as a space 46. Further, in (3), the vibration damping structure 2
0 shows a state in which a large space 46 is secured on one side and a space in a zigzag manner is secured between the layers. With this arrangement, it is possible to increase the degree of freedom in planning an opening such as an entrance. FIG. 6 is a view showing a vibration damping structure according to a second embodiment of the present invention. In the present embodiment, the lower portion of the block-shaped member 40a on the lower beam 24 side of the first mounting member 40 for mounting the hysteresis damping addition type damper 28 has the same length as the common mounting member 42 on the upper beam 26 side. Thus, one end of the viscous damping addition type damper 30 is attached to the lower end of the second attachment member 44, and the other end is attached to the extended block-shaped member 40a. With this configuration, the attachment of the viscous damping type damper 30 is easier than in the above-described embodiment. The second mounting member 44 is constituted by one block-shaped member. The other configuration and operation are the same as those of the first embodiment, and the description is omitted. FIG. 7 is a view showing a vibration damping structure according to a third embodiment of the present invention. In this embodiment, the lower beam 24 and the upper beam 26
Each of the block-shaped common mounting members 4 having a predetermined length
2 and a hysteresis damping type damper 28 is mounted on one side via a first mounting member 40, and a second damper 28 is mounted on the other side.
By attaching a wide-walled viscoelastic damper 50 as a viscous damping addition type damper via the mounting member 44 of
Functions similar to those of the above-described embodiments are provided. The other configuration and operation are the same as those of the above-described embodiments, and the description is omitted. FIG. 8 is a diagram illustrating a vibration damping structure according to a fourth embodiment of the present invention. In this embodiment, the lower beam 24 and the upper beam 26
Is attached to each of them, a block-shaped common attachment member 52 made of RC having a predetermined length is attached, a viscous damping addition type damper 28 is attached to one side through a first attachment member 40 made of steel, and a steel frame is attached to the other side. By mounting the viscous damping addition type damper 30 via the second mounting member 44, the damper 30 can be similarly installed on the RC structure. Other configurations and operations are the same as those of the above-described embodiments, and the description thereof will be omitted. FIG. 9 is a diagram showing a vibration damping structure according to a fifth embodiment of the present invention. In the present embodiment, the lower beam 24 and the upper beam 26
Each of the block-shaped common mounting members 4 having a predetermined length
2 and a pair of hysteresis damping type dampers 28 are mounted on both sides thereof via a first mounting member 40, and a viscous damping type damper 30 is mounted on a center side thereof via a second mounting member 44. The damper 28 with added history damping and the damper 30 with added viscous damping are arranged in parallel. In the case of such a vibration damping structure, the hysteresis damping type dampers 28 located on both sides of the viscous damping type damper 30 restrain the rotation of the viscous damping type damper 30 to generate an effective load. As a result, the viscous damping type damper 30 can be expected to absorb more energy. Also in this vibration damping structure, a space 46 covering the entire height of the lower beam 24 and the upper beam 26 is secured on both sides of the vibration damping structure 20 as in the above-described embodiment. Other configurations and operations are the same as those of the above-described embodiment, and the description is omitted. FIG. 10 is a diagram showing a vibration damping structure according to a sixth embodiment of the present invention. This vibration damping structure 20 omits the common mounting member 42 in the vibration damping structure shown in FIG. 9 and the second mounting member in which the viscous damping type damper 30 at the center is mounted on the lower beam 24 and the upper beam 26. Attach at 44, with the first on both sides
By attaching the hysteresis damping type damper 28 to the lower beam 24 and the upper beam 26 via the mounting member described above, the mounting member is made of a small amount of material. Other configurations and operations are the same as those of the above-described embodiment, and the description thereof will be omitted. FIGS. 11 and 12 show a vibration damping structure according to a seventh embodiment of the present invention. In the vibration damping structure 20 according to the present embodiment, the hysteresis damping type damper 28 is mounted on the upper beam 26 via the first mounting member 40. One end of the viscous damping addition type damper 30 is attached to the lower beam 24 via a second attachment member 44.
The other end is attached to the tip (lower end) of the first attachment member 40. Therefore, the hysteresis damping type damper 28,
The viscous damping addition type damper 30 is arranged in series,
The shear force generated between the dampers 28 is a damper 28 with an additional hysteresis.
, And flows on one route of the viscous damping addition type damper 30. The damping force states of the viscous damping type damper 30 and the hysteresis damping type damper 28 are shown in FIG.
2 (1) and (2). As shown in (1), the viscous damping type damper 30 absorbs a large amount of energy when the deformation speed is increased, and the hysteretic damping adding type damper 28 is shown in (2). As described above, when the deformation increases, a large amount of energy is absorbed. Further, in the viscous damping type damper 30, when a predetermined relief load is applied, the oil is released by the relief valve, so that the safety of the viscous damping type damper 30 is maintained. I have. Therefore, if the maximum proof stress of the hysteresis damping type damper 28 is set near the relief load of the viscous damping type damper 30, no more force will flow to the viscous damping type damper 30, and the viscous damping type damper 30 will not be subjected to any further force. It is possible to prevent the die damper 30 from generating an excessive force. With this configuration, an inexpensive viscous damping type damper 30 without a relief valve, which is the center of the viscous damping type damper 30, can be used. After the earthquake, only the inexpensive hysteresis damping type damper 28 needs to be replaced, and an inexpensive configuration can be achieved. When a visco-elastic damper is used as the viscous damping type damper 30, if the maximum proof stress of the hysteretic damping adding type damper 28 is set to be equal to or less than the limit load, a greater force is applied to the viscous damping adding type damper. And the expensive viscous damping type damper 30 can be prevented from being destroyed. Thus, it is economical because only the inexpensive hysteresis damping type damper needs to be replaced. The other configurations and operations are the same as those of the above-described embodiments, and the description will be omitted. FIG. 13 is a diagram showing a vibration damping structure according to an eighth embodiment of the present invention. The vibration damping structure 20 according to the present embodiment is similar to that shown in FIG.
In addition to the hysteresis damping type damper 28 mounted by the first mounting member 40 in the vibration damping structure shown in FIG. 5, a hysteresis damping type damper 48 is further mounted at an intermediate position of the second mounting member 44. The damper 48 and the viscous damping type damper 30 are arranged in series, and the hysteresis damping type damper 28 and the viscous damping type damper 30 are arranged in parallel. Thus, the shearing force generated between the layers is divided into a route that passes through the hysteresis damping type damper 28 and a route that passes through the hysteresis damping type damper 48 and the viscous damping type damper 30. By adopting such a configuration, the proof stress of the hysteresis damping type damper 28 and the hysteresis damping type damper 48 is changed, for example, the hysteresis damping type damper 28 is made larger than the hysteresis damping type damper 48. The vicinity of the relief load of the viscous damping addition type damper 30 is set as the maximum proof stress of the hysteresis damping addition type damper 48, and the structure can be made such that no more force is applied to the viscous damping addition type damper 30. Thus, the viscous damping addition type damper 3
It is possible to use an inexpensive one without a relief valve, which is the center of zero, and after an earthquake, it is only necessary to replace only the inexpensive hysteretic damping additional dampers 28, 48. This is because the viscous damping type damper 30
When a visco-elastic damper is used, it is only necessary to replace the inexpensive hysteretic damper that can prevent the visco-elastic damper from being broken by setting the maximum proof stress of the hysteresis damping addition type damper 28 to the limit load or less. The other configuration and operation are the same as those of the above-described embodiment, and the description is omitted. Next, a method of constructing the vibration damping structure 20 shown in FIG. 13 will be described with reference to FIGS. 14 and 15. First, when such a building 10 is constructed, after the lower beam 24 is constructed, the left and right columns 22 are erected, and the upper beam 26 is constructed on this column 22. Then, when constructing the lower beam 24, as shown in FIG. 14, the block member 40a of the first attaching member 40 is previously mounted on the upper surface of the lower beam 24, thereby constructing the lower beam. Next, as shown in FIG. 15, on the lower surface of the upper beam 26, a common attaching member 42, a block member 40b constituting the first attaching member 40, and a block member 44a constituting the second attaching member 44. , 44b are attached in advance, and the upper beam 26 is constructed in that state. In this state, the hysteresis damping type damper 28 is mounted between the block-shaped members 44a and 44b forming the first mounting member 40, and the hysteresis damper 28 is mounted on the lower end of the block-shaped member 44b forming the second mounting member 44. A damping additional damper 48 and a block-shaped member 44c are attached, and a viscous damping added damper 30 is provided between the block-shaped member 44c and the block-shaped member 40a constituting the first mounting member 40.
By attaching, the vibration damping structure 20 which is a heavy object as shown in FIG. 13 can be easily and reliably constructed. When the common attachment member is also provided on the lower beam, the common attachment member is attached to the lower beam in advance when constructing the lower beam. When the common mounting member is not used for both the upper and lower beams, the first and second mounting members are directly mounted on the upper and lower beams in advance. FIG. 16 is a view showing a vibration damping structure 20 according to a ninth embodiment of the present invention. The vibration damping structure 20 includes the first mounting member 4
0 is attached to the lower beam 24 and the upper beam 26, and a hysteresis damping addition type damper 28 is attached at an intermediate position in the vertical direction of the first attachment member 40, and the lower beam 24, the upper beam 26, and the left column 22
The second mounting member 44 is mounted at a diagonal position of a space surrounded by the first mounting member 40. Then, the viscous damping type damper 30 is mounted on the diagonal line of the space by the second mounting member 44, so that the lower beam 24 is provided between the first mounting member 40 and the right column 22. And a large space 46 over the entire height of the upper beam 26 is formed. As described above, the viscous damping type damper 30
Is mounted on the diagonal of the space, the space for mounting the viscous damping type damper 30 can be reduced in the left-right direction, and the space 46 can be effectively secured. The other configuration and operation are the same as those of the above embodiment, and the description is omitted. FIG. 17 is a diagram showing a vibration damping structure according to a tenth embodiment of the present invention. In the vibration damping structure 20 according to the present embodiment, a pair of left and right first mounting members 40 are mounted over the lower beam 24 and the upper beam 26, respectively, and the hysteresis is provided at an intermediate position between the pair of first mounting members. A damping additional damper 28 is attached. Then, the second mounting member 44 is connected to the lower beam 2
4. By mounting the upper beam 26 at a diagonal position of a space surrounded by the pair of first mounting members 40 and mounting the viscous damping addition type damper 30 on a diagonal line of the space by the second mounting member 44, A pair of first mounting members 40
Between the lower beam 24 and the left and right columns 22 respectively.
Are formed respectively in the spaces 46 over the entire height. The other configuration and operation are the same as those of the above-described embodiment, and the description is omitted. The present invention is not limited to the above embodiments, but can be modified into various forms within the scope of the present invention. In each of the above embodiments, the same operation and effect can be exerted even if the mounting positions of the first mounting member and the second mounting member are upside down or left and right reversed. In the ninth and tenth embodiments, the same effect can be obtained by using a viscoelastic damper having a predetermined length as the viscous damping addition type damper. Further, when the viscous damping type dampers are arranged diagonally as in the ninth and tenth embodiments, the axial force generated on the column can be effectively treated by increasing the thickness of the vertical flange. .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing a vibration damping structure according to a first embodiment of the present invention. FIG. 2 is a diagram showing an example of a distribution of a vibration damping region in which the respective effects of the viscous damping added damper and the hysteresis damping added damper of FIG. 1 are exhibited. FIG. 3 is an enlarged front view showing the hysteresis damping addition type damper of FIG. 1; 4 (1) to (3) are explanatory diagrams each showing an arrangement state of a vibration damping structure on a plane surface. FIG. FIG. 5 is a schematic cross-sectional view of the building of the present invention. FIG. 6 is a front view showing a vibration damping structure according to a second embodiment of the present invention. FIG. 7 is a front view showing a vibration damping structure according to a third embodiment of the present invention. FIG. 8 is a front view showing a vibration damping structure according to a fourth embodiment of the present invention. FIG. 9 is a front view showing a vibration damping structure according to a fifth embodiment of the present invention. FIG. 10 is a front view showing a vibration damping structure according to a sixth embodiment of the present invention. FIG. 11 is a front view showing a vibration damping structure according to a seventh embodiment of the present invention. FIG. 12A is a characteristic diagram illustrating a relationship between a speed and a damping force of a viscous damping added damper, and FIG. 12B is a characteristic diagram illustrating a relationship between a deformation of the hysteretic damping added damper and a damping force. is there. FIG. 13 is a front view showing a vibration damping structure according to an eighth embodiment of the present invention. FIG. 14 is a diagram showing a lower beam building process when the vibration damping structure of FIG. 12 is built. FIG. 15 is a front view showing a step of constructing an upper beam from the state of FIG. 14; FIG. 16 is a front view showing a vibration damping structure according to a ninth embodiment of the present invention. FIG. 17 is a front view showing a mental structure according to a tenth embodiment of the present invention. [Description of Signs] 10 Building 14 Core 16 Evacuation stairs 18 Construction surface 20 Damping structure 22 Column 24 Lower beam 26 Upper beam 28, 48 Hysteresis damping type damper 30 Viscous damping type damper 32a Base plate 34 Shear panel 36 Vertical flange 38 Side rib 40 First mounting member 44 Second mounting member 46 Space

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-9-324557 (JP, A) JP-A-9-328925 (JP, A) JP-A-7-207984 (JP, A) JP-A-11- 270178 (JP, A) JP-A-8-93265 (JP, A) JP-A-9-324556 (JP, A) JP-A-10-102818 (JP, A) JP-A-11-193649 (JP, A) Hira 4-111870 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) E04H 9/02 321

Claims (1)

(57) [Claims 1] A hysteresis damping type damper and a viscous damping type using a mounting member composed of a plurality of block-shaped members in a space surrounded by upper and lower beams and left and right columns of a building. A method of building a vibration damping structure incorporating a damper, wherein the lower block-shaped member to which at least one of the hysteresis damping addition type damper and the viscous damping addition type damper is attached is previously attached to the upper surface of a lower beam, In that state,
The step of constructing the lower beam, and the upper block-shaped member to which at least the other of the hysteresis damping additional damper and the viscous damping additional damper is attached to the lower surface of the upper beam in advance, and in that state,
Constructing the upper beam; and applying the hysteresis damping addition type damper to at least one of the lower and upper block-shaped members.
Attached to one of the beams while connected via a mounting member
Attach one end of the viscous damping addition type damper to the other of the lower and upper block-shaped members , and directly connect the other end.
Or through a mounting member for the hysteresis damping addition type damper.
And indirectly attaching the lower beam and the upper beam to the other of the lower beam and the upper beam .