JP3411449B2 - Truss-type connection structure of structure using oil damper - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] [0001] The present invention relates to a structural expert.
Oil absorbing vibration energy
RudampaTruss typeInstallStructureConnection structure
Things. [0002] BACKGROUND OF THE INVENTION Problems to be Solved by the Invention
Is an isolated structure against earthquake
BetweenLarge structure to avoid collision due to vibrationbody
And structures with different natural periodsbodyIt is located between
ConstructionbodyIs divided into appropriate units, so that vibration
Structure that behaves as a wholebodyCracks
This is to prevent obstacles, and in the past it was simply a function
It was stopped. On the other hand, Japanese Patent Laid-Open No.In the gazette
Are separated by an expansion jointStructureStructure
A damper that absorbs horizontal vibration is placed between
PaBy connecting both structures with,Each structure separated
The joint energy absorbs the vibration energy of the body,
It has been proposed to add a damping function to theTo
(Hereafter referred to as joint damper).Damper is directly attached to the structure
Connected or cantilevered horizontally from the structure.
By interposing between connecting beams and straddling connecting members
It is a structure installed between structures. FIG. 5A shows two structures.bodyS, from S
Drum-shaped steel straddled between the cantilever beams 101, 101
Damper D₁ (B) is a bell-shaped steel damper D_Two
FIG. [0005] However, in general, the joint damper is an interlayer damper.
It is necessary to follow a large amount of deformation as compared with the case. Above
JP 2-232478PublicationIn the joint damper of
If the amount of deformation is large, the height of the damper will increase,
Had the drawback of taking The present invention has been made to solve such a problem.
It was invented. [0007] [Means for Solving the Problems]The invention according to claim 1 of the present application.
The truss-type connection structure of the structure by the il damper
With the pansion jointTwo structures spaced horizontally
Between the structures,2 oil dampers to absorb horizontal vibration
As a set of unitsThe structurebodyAngle to the main axis direction
Change the degreeMultiple sets of truss typeThe structurebodySpindle of
directioneveryTo adjust damping performancedidSpecially
SignThings. [0008] The present inventionIn connection structureIs the elasto-plastic type
Instead of a joint damper, an easy-to-maintain
Make two sets of il dampers with an angleTruss type
By installing it, it can respond to horizontal vibration in all directions
It was made. FIG. 3 shows the structure.bodySpindle direction (hereinafter, spindle direction)
Are called X direction and Y direction)everyThe damping performance (damping coefficient and
If it is necessary to adjust the oil damper
It is a figure which changes by setting an installation angle. (A) shows the structure
The angle between the Y direction and the axis of the oil damper is small.
The angle between the two oil dampers is more than 90 °In
R, And both the damping coefficient and the damping force are large in the Y direction. (B)
The angle between the X direction of the structure and the oil damper is small.
The angle between the two oil dampers that make up the set is 90 ° or less
And both the damping coefficient and the damping force increase in the X direction.You. FIG. 4 (a), Together with the table of FIG.
Set two oil dampers at 90 ° with two
Function and structurebodyFunction of earthquake-resistant elements such as columns, beams, walls, etc.
It is a diagram showing that they complement each other.(Complementation is two units
Say that il damper does not have to make 90 °
Not even). Explaining based on the table of FIG.
In the main axis direction of the structureX direction and Y directionAnd one for two
The x direction and the y direction which are the axial directions of each oil damper of the set
When the angle is 45 °(See upper and lower left columns), XdirectionOr
For vibration input in the Y direction, columns, beams, walls, etc.
Only the direction works, Because the other direction does not work
In the Y direction input, only the seismic elements in the Y direction
Works), allBody seismicHalf of an elementMinute
Will work. At this time,Il damperIs the x direction
And y directions, butangle(45 °)In response
JustOf the entire damper function1/2^1/2 WorksEspecially
To. Also structurebodyofXdirectionOr45 ° to Y direction(X direction
Direction or y direction)In the case of vibration input ofone
Since only one direction works and the other does not,
FunctionAlmost half works, but columns, beams or
Seismic elements such as wallsaboutTotal earthquake resistanceFunctional1/2^1/2 The machine
Will work. Thus, the structurebodyofSpindle (spindle direction
X, Y)And the axis of the oil damper by 45 °,
That is, two sets of oil dampers(Axial direction x, y)Is 90 °
The corner ofEggplantSet up,Damper function and seismic functionButEach other
SupplementTo beIt is possibleYou. The oil damper has a stroke that can be freely set.
The change in the outer shape caused by the
You. The outer diameter is determined by the magnitude of the damping force, for example, 100t
With a damping force of 34 cm, the diameter is 34 cm, so a large stroke is required.
Can be placed under the ceiling. [0012] BRIEF DESCRIPTION OF THE DRAWINGS FIG.
Form will be described. FIG. 1A shows an oil damper of the present invention.By
Truss connection structureIt is a side view of (b)
It is a top view.Symbols in the figure1 is the structurebodyPillars A and B
2 is the structure of eachbodyIs shown.Sign3 is 2
One set of oil dampers, in this case, 2Table
With one set of oil damperIn the direction of the main axis of the bodyX, Y
Two sets are installed with an angle in the direction. FIG. 2 shows that the required stroke is large.
Also, for example, with a damping force of 100 t and a diameter of 34 cm,
It is a figure showing that an oil damper can be stored. 4 is sla
And 5 is an expand joint. [0015] The effects of the present invention are as follows. The conventional joint damper has a large deformation amount.
In this case, the height of the damper will increase and take up space.
Once the damper has been plastically deformed, replace it.
There was a drawback that required tenancy. In the present invention, the amount of deformation
For example, even if the stroke required by
Because the diameter is 34cm by force, put the oil damper also on the ceiling
I can get it and maintenance is also an oil damper
Is easy. [0017] StructurebodyofSpindle direction (X direction and Y direction)
It is necessary to adjust the damping performance (damping coefficient and damping force) for each
In some cases, changing the installation angle of the oil damper
You.For example, in the truss-type connection structure of the present invention,
When connecting in the X direction, The damping coefficient and the damping force in the Y direction
If you want to make it bigger, two oils that make up one set
Angle made by damperTo90 ° or more(See FIG. 3 (a)), X
If you want to increase the size in the direction,
CornerTo90 ° or less(See Fig. 3 (b))
Noh. By doing so, the damper function and the pillar,
The seismic function of the beam frame can be mutually complemented.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 (a) is a structure using an oil damper of the present invention.
FIG. 2 is a side view of the truss-type connection structure of FIG. 2 is a diagram showing that may pay oil damper to heaven Iura. 3 (a) is diagram when the angle between the two oil damper constituting a pair is 90 ° or more, (b) if the angle between the two oil damper is 90 ° or less FIG . [4] <br/> a diagram for functions of the two pair of seismic elements functions and structures Oirudan path is described to complement each other Oh Ri, (a) shows the schematic view of a planar arrangement , (B) is an oil dan
The function of the power and the function of the seismic element are summarized according to the input direction.
It is a table. 5 (a), the two structures or we projected the cantilever beam
Are diagrams hourglass steel dampers which is straddled between, (b) is a diagram of bell steel dampers. [Description of Signs] 1 ... pillar, 2 ... beam, 3 ... oil damper, 4 ... slab, 5 ...
Expansion joint, 6 ... Ceiling , A: Building A, B
... B Building, D ₁ ... hourglass steel damper, D ₂ ... bell steel damper, S ... structures, 101 ... cantilevers

Claims (1)

(57) [Claims] [Claim 1] Horizontal vibration is absorbed between two structures spaced apart horizontally by an expansion joint.
The oil damper by changing the respective angles to the main axis direction of the structure as two pair plural sets straddled by <br/> the truss to, to be able to adjust the attenuation performance of each principal axis of the structure truss connection structure of the structure by the oil damper, characterized by being configured to.