CN108867913A - U-shaped variable cross-section mild steel damper and combination unit with pseudo-linear Hysteretic Type Damping feature - Google Patents
U-shaped variable cross-section mild steel damper and combination unit with pseudo-linear Hysteretic Type Damping feature Download PDFInfo
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- CN108867913A CN108867913A CN201810796954.6A CN201810796954A CN108867913A CN 108867913 A CN108867913 A CN 108867913A CN 201810796954 A CN201810796954 A CN 201810796954A CN 108867913 A CN108867913 A CN 108867913A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, 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
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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Abstract
The present invention relates to a kind of U-shaped variable cross-section mild steel damper and combination unit with pseudo-linear Hysteretic Type Damping feature, U-shaped variable cross-section mild steel damper includes cross-section semicircle segmental arc, upper variable cross-section section, upper linkage section, lower variable cross-section section, lower linkage section.Combination unit with above-mentioned U-shaped variable cross-section mild steel damper, one or more groups of U-shaped variable cross-section mild steel dampers are fixed in a box shedding motion, box shedding motion includes top panel, lower panel, two side panels, fixing end bottom plate, U-shaped variable cross-section mild steel damper is bolted with top panel or lower panel, simultaneously, U-shaped variable cross-section mild steel damper is also bolted a connection activity steel plate, in the groove of connection activity steel plate insertion side panel, the sponson of connection activity steel plate is connect with loading device.The present invention can be realized damper power output and increase with displacement and increase, and have pseudo-linear Hysteretic Type Damping feature.
Description
Technical field
The present invention relates to a kind of U-shaped variable cross-section mild steel damper and combination unit with pseudo-linear Hysteretic Type Damping feature,
It is generally used for the structural seismic control of building and mechanical industry, belongs to vibration control technology field.
Background technique
Structure energy-dissipating and shock-absorbing technology is a kind of novel active Seismic Resistance And Disaster Reduction technology, in the structural body using energy-dissipating and shock-absorbing technology
In system, certain nonload bearing elements of structure are designed to have the particular components of larger energy dissipation capacity --- and damper, small wind are small
When shake, there is structure itself enough lateral rigidities structure to be made to be in elastic stage, meet normal requirement.Big shake strong wind
When, with the increase of structure lateral deformation, damper takes the lead in entering inelastic state, generates larger damping, and intensively dissipate knot
The earthquake of structure or wind shake energy, the dynamic respons of rapid attenuating structure, to avoid or reduce the damage of main structure.
Base Isolation Technology can effectively reduce the seismic response of superstructure, obtain in newly-built and reinforcing engineering in recent years
It is extensive to use.The horizontal rigidity of Seismic Isolation of Isolation Layer is smaller, is easy to produce moderate finite deformation under rarely occurred earthquake effect.Structural engineer is logical
Damper often is installed to limit the dynamic respond of isolation structure in Seismic Isolation of Isolation Layer.Due to the uncertainty in seismic wave direction, Seismic Isolation of Isolation Layer
It may be deformed in any direction, therefore it is required that the damper in Seismic Isolation of Isolation Layer should also have multidirectional deformation ability.Metal is bent
Additional stiffness and damping can be provided simultaneously for structure by taking damper, and the metallic damper of function admirable is very suitable to control
Dynamic respond of the structure under earthquake.In the past research shows that U-shaped metal mild steel damper has good energy dissipation capacity in face,
Has the function of highly significant for the displacement for improving structural damping ratio, controlling isolation structure.But damper power output is hardly
Become, do not increase with displacement structure and increase, in addition the power output of existing lead damper even can with the increase of displacement and gradually
Reduce, the energy dissipation capacity in the almost unchanged big earthquake centre of damper of this power output can gradually weaken, so that damping effect is undesirable.
Summary of the invention
Based on drawbacks described above, the U-shaped variable cross-section mild steel resistance with pseudo-linear Hysteretic Type Damping feature that the invention proposes a kind of
Buddhist nun's device and combination unit have large deformation ability and can solve damper and contribute constant problem.
In order to realize that large deformation ability and the purpose that increases with the increase of displacement of damping force, the present invention of damper take
Following technical solution：
A kind of U-shaped variable cross-section mild steel damper with pseudo-linear Hysteretic Type Damping feature, including cross-section semicircle segmental arc, on
Variable cross-section section, upper linkage section, lower variable cross-section section, lower linkage section.The cross-section semicircle segmental arc both ends respectively with upper variable cross-section section,
The connection of the section of lower variable cross-section section most narrow place, the upper variable cross-section section, lower variable cross-section section section the widest part respectively with upper linkage section,
Lower linkage section is connected, and upper linkage section, the lower linkage section other end are provided with bolt hole, for hindering the U-shaped variable cross-section mild steel
Buddhist nun's device is connected with the structure of damping is needed.
Further, the upper linkage section, lower connection segment length 100-180mm, wide 160-300mm, thick 10-15mm.
Further, the upper variable cross-section section, lower variable cross-section segment length 125-300mm, widest part width 160-300mm,
Most narrow place's width is 40-70mm, thick 10-15mm.
Further, the internal diameter of the cross-section semicircle segmental arc is 30-65mm, outer diameter 50-75mm, width 40-
70mm, thick 10-15mm.
Further, the cross-section semicircle segmental arc, upper variable cross-section section, upper linkage section, lower variable cross-section section, lower linkage section are equal
It is made of Q195 steel.
A kind of combination unit with above-mentioned U-shaped variable cross-section mild steel damper, U-shaped variable cross-section mild steel damper are fixed on one
In box shedding motion, box shedding motion includes top panel, lower panel, two side panels, fixing end bottom plate.U-shaped variable cross-section
Linkage section is bolted with box shedding motion top panel on mild steel damper, upper linkage section outermost face and box shedding motion
Top panel outermost face is concordant, and lower linkage section connect the connection of movable steel crab bolt with one.The side panel on box shedding motion both sides
Internal to open up at lower panel fluted, groove height is more bigger than connection activity steel plate thickness, connection activity steel plate insertion side
In the groove of panel, the sponson of connection activity steel plate is connect with loading device.
Further, the cross-section semicircle segmental arc of U-shaped variable cross-section mild steel damper and box shedding motion fixing end bottom plate
Inner surface distance is 300mm, and the sponson length of connection activity steel plate is 200mm, inside stretches partial-length 400mm.
Another kind has the combination unit of above-mentioned U-shaped variable cross-section mild steel damper, and the device is by two U-shaped variable cross-section mild steel
Damper constitutes a combination of dampings device, and two U-shaped variable cross-section mild steel dampers are divided into two rows, every row one, and upper and lower two
It arranges and a connection activity steel plate is set among U-shaped variable cross-section mild steel damper, be used for the U-shaped variable cross-section mild steel damper of two rows
It links together.Combination of dampings device is fixed in a box shedding motion, and box shedding motion includes top panel, lower panel, two
A hollow out side panel, fixing end bottom plate.The lower connection of the upper linkage section and lower row's damper of the upper U-shaped variable cross-section mild steel damper of row
Section is connected with top panel, lower panel respectively, the upper linkage section of the U-shaped variable cross-section mild steel damper of upper row and lower exclusion Buddhist nun
The outermost end of the lower linkage section of device is concordant with the upper surface of box shedding motion plate, the outermost end of lower panel respectively, and U-shaped become of upper row cuts
The upper linkage section of the lower linkage section of face mild steel damper and the U-shaped variable cross-section mild steel damper of lower row and intermediate connection activity steel plate
It is connected with, the free one end of connection activity steel plate is located in box shedding motion, and the other end and loading device consolidate, and two are engraved
It is provided with groove in the middle part of empty side panel, groove height is more bigger than connection activity steel plate thickness, and connection activity steel plate is inserted into two hollow outs
In the groove of side panel.The cross-section semicircle segmental arc of U-shaped variable cross-section mild steel damper in every row is towards fixing end bottom plate direction.
Another kind has the combination unit of above-mentioned U-shaped variable cross-section mild steel damper, by four U-shaped variable cross-section mild steel dampers
A combination of dampings device is constituted, four U-shaped variable cross-section mild steel dampers are divided into two rows, every row two, the U-shaped change of two rows
There is a connection activity steel plate in the mild steel damper of section, for the U-shaped variable cross-section mild steel damper of two rows to link together.
Combination of dampings device is fixed in a box shedding motion, and box shedding motion includes top panel, lower panel, two hollow out sides
Plate, fixing end bottom plate.The upper linkage section of the U-shaped variable cross-section mild steel damper of upper row two and the U-shaped variable cross-section mild steel resistance of lower row two
The lower linkage section of Buddhist nun's device is connected with top panel, lower panel respectively, the U-shaped variable cross-section mild steel damper cross-section of every row two
The spacing of semicircle segmental arc outermost end is 50-100mm, positioned at the U-shaped variable cross-section mild steel damper of box shedding motion opening
The upper surface of the outermost end of upper linkage section and lower linkage section and box shedding motion plate, the outermost end of lower panel are concordant.The upper U-shaped change of row
The upper linkage section of the lower linkage section of section mild steel damper and the U-shaped variable cross-section mild steel damper of lower row connect movable steel with centre one
Plate is connected with, and intermediate free one end of connection activity steel plate is located in box shedding motion, and the other end and loading device are solid
Knot, two hollow out side panels middle parts are provided with groove, and groove height is more bigger than connection activity steel plate thickness, the insertion of connection activity steel plate
In two hollow out side panel slots, connection activity steel plate can only be along the axial movement of U-shaped variable cross-section mild steel damper when making to load.
Further, box shedding motion open end is away from loading device 300-500mm.Positioned at the U close to fixing end bottom plate
The outermost end of linkage section and lower linkage section is away from fixing end bottom plate 250-350mm on type variable cross-section mild steel damper.
When U-shaped variable cross-section mild steel damper is mounted in structure, the vibration of structure can force damper to move reciprocatingly,
Due to the preferable plasticity energy dissipation capacity of mild steel, and the ability with large deformation, linkage section will drive variable cross-section section, make its section
Lasting bending surrender energy consumption, cross-sectional width increase with the displacement of damper and increase, it can be achieved that damping force is with displacement from narrow to wide
Increase and increase go out force request.
Compared with the existing technology, the present invention has the following technical effect that：
The damper and its device have large deformation ability and good plasticity energy dissipation capacity.The damper not only can solve
The problem of lead damper power output increases with displacement and is reduced, additionally it is possible to realize that damper power output increases with displacement and increased, have
Pseudo-linear Hysteretic Type Damping feature makes it in the case where vibration displacement increases, remains to effectively consume energy, weaken the vibration of building,
The seriousness of reduction accident.Damper structure is simple, easy to process, low manufacture cost, and cost performance is high, and size is smaller, installation side
Just, it can flexibly be mounted in Seismic Isolation of Isolation Layer as needed, adapt to the vibration of any direction, Energy Dissipation Mechanism is clear.
Detailed description of the invention
Fig. 1 is the U-shaped mild steel damper main view proposed by the present invention with pseudo-linear Hysteretic Type Damping feature.
Fig. 2 is the U-shaped mild steel damper top view proposed by the present invention with pseudo-linear Hysteretic Type Damping feature.
Fig. 3 is the U-shaped mild steel damper side view proposed by the present invention with pseudo-linear Hysteretic Type Damping feature.
Fig. 4 is the U-shaped mild steel damper schematic three dimensional views proposed by the present invention with pseudo-linear Hysteretic Type Damping feature.
Fig. 5 is combination unit embodiment 1 top view proposed by the present invention with U-shaped variable cross-section mild steel damper.
Fig. 6 is combination unit embodiment 1 cross section view proposed by the present invention with U-shaped variable cross-section mild steel damper.
Fig. 7 is combination unit embodiment 1 schematic three dimensional views proposed by the present invention with U-shaped variable cross-section mild steel damper.
Fig. 8 is that combination unit embodiment 1 power proposed by the present invention with U-shaped variable cross-section mild steel damper-displacement is bent
Line.
Fig. 9 is combination unit embodiment 2 top view proposed by the present invention with U-shaped variable cross-section mild steel damper.
Figure 10 is combination unit embodiment 2 sectional view proposed by the present invention with U-shaped variable cross-section mild steel damper.
Figure 11 is combination unit embodiment 2 schematic three dimensional views proposed by the present invention with U-shaped variable cross-section mild steel damper.
Figure 12 is that combination unit embodiment 2 power proposed by the present invention with U-shaped variable cross-section mild steel damper-displacement is bent
Line.
Figure 13 is combination unit embodiment 3 top view proposed by the present invention with U-shaped variable cross-section mild steel damper.
Figure 14 is combination unit embodiment 3 cross section view proposed by the present invention with U-shaped variable cross-section mild steel damper.
Figure 15 is combination unit embodiment 3 schematic three dimensional views proposed by the present invention with U-shaped variable cross-section mild steel damper.
Figure 16 is that combination unit embodiment 3 power proposed by the present invention with U-shaped variable cross-section mild steel damper-displacement is bent
Line.
In figure, 1：Cross-section semicircle segmental arc, 2：Upper variable cross-section section, 3：Upper linkage section, 4：Lower variable cross-section section, 5：Lower connection
Section, 6：Top panel, 7：Lower panel, 8：Fixing end bottom plate, 9：Side panel, 10：Connection activity steel plate.
Specific embodiment
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing.
As illustrated in figs. 1-16, present invention is further described in detail in the following with reference to the drawings and specific embodiments, but does not make
For limitation of the invention.
As shown in Figs 1-4, a kind of U-shaped variable cross-section mild steel damper with pseudo-linear Hysteretic Type Damping feature of the invention,
Entirety can be divided into 5 parts, cross-section semicircle segmental arc 1, upper variable cross-section section 2, upper linkage section 3, lower variable cross-section section 4, lower connection
Section 5.1 both ends of cross-section semicircle segmental arc are connected with upper variable cross-section section 2, lower variable cross-section section 4 respectively, and upper variable cross-section section 2, lower become cut
Face section 4 is separately connected with upper linkage section 3 and lower linkage section 5 respectively again, and bolt peace can be set in upper linkage section 3 and lower linkage section 5
Hole is filled, for connecting the top and bottom of Seismic Isolation of Isolation Layer.
When practical application, it can according to need increase or reduce the diameter of cross-section semicircle segmental arc 1, increase variable cross-section
Length can also amplify the U-shaped variable cross-section mild steel damper with equal proportion, and parallel, upper and lower superposition peace can be controlled in Seismic Isolation of Isolation Layer
Dress.
It can be installed in all directions that Seismic Isolation of Isolation Layer may vibrate this U-shaped with pseudo-linear Hysteretic Type Damping feature
Variable cross-section mild steel damper.In vibration processes, cross-section semicircle segmental arc 1 surrenders energy consumption first, then increases with dynamic respond
With the reciprocating motion for generating structure by earthquake motion, make the surrender energy consumption in succession of variable cross-section section 2, lower variable cross-section section 4, this process
The energy of seismic wave, and dynamic respond of the control structure under earthquake can be effectively absorbed.
Embodiment
Embodiment 1
As viewed in figures 5-8, in the present embodiment, upper linkage section 3, lower linkage section 5 are 100mm long, wide 160mm, thick 10mm, to add
Carried convenient, U-shaped mild steel damper are fixed in a box shedding motion, and box shedding motion includes top panel 6, lower panel 7, two
A side panel 9, fixing end bottom plate 8.Linkage section 3 and 6 bolt of box shedding motion top panel connect on U-shaped variable cross-section mild steel damper
It connects, upper 3 outermost face of linkage section is concordant with box shedding motion 6 outermost faces of top panel, and lower linkage section 5 connect movable steel with one
Plate 10 is bolted.9 inside of side panel on box shedding motion both sides opens up fluted, groove height ratio at lower panel 7
Connection activity 10 thickness of steel plate are bigger, connection activity steel plate 10 be inserted into side panel 9 groove in, connection activity steel plate 10 it is overhanging
Part is connect with loading device.When load loading bench can only be fixed on along the axial movement of U-shaped mild steel damper, fixing end bottom plate
On.Cross-section semicircle segmental arc 1, upper variable cross-section section 2, upper linkage section 3, lower variable cross-section section 4, lower linkage section 5 are all made of Q195 steel
Production, box shedding motion and movable steel plate are made of Q345B steel.Wherein, the equal of U-shaped variable cross-section mild steel damper cuts
Face semicircle segmental arc 1 and 8 inner surface distance of box shedding motion fixing end bottom plate are 300mm, the over-hang part of connection activity steel plate 10
Dividing length is 200mm, inside stretches partial-length 400mm.
In the present embodiment, the U-shaped mild steel damper of original state does not stress, when connection activity steel plate 10 is by slow axial direction
When pulling force, 1 tension of cross-section arc section is moved downwards, contacts and gradually become plane with connection activity steel plate 10, upper become cuts
Face section 2 bends and surrenders, and bending sections are gradually increased.When damper displacement reaches 150MM, change loading direction, it is curved
The section of bent portions first reduces, and when bending sections reach minimum, damper is moved back into original state.It is curved after continuing load
The section of bent portions starts to increase, and lower variable cross-section section 4 progresses into bending yield situation.Test obtained force-displacement curve such as
Shown in Fig. 8, damper power output increases obviously with displacement, has apparent pseudo-linear Hysteretic Type Damping feature, and hysteresis loop is full, resistance
Buddhist nun's device energy consumption effect is good.
Embodiment 2
As shown in figs9-12, in the present embodiment, which is made of a combination resistance two U-shaped variable cross-section mild steel dampers
Buddhist nun's device, two U-shaped variable cross-section mild steel dampers are divided into two rows, every row one, the U-shaped variable cross-section mild steel damper of two rows
One connection activity steel plate 10 of centre setting, for the U-shaped variable cross-section mild steel damper of two rows to link together.The embodiment
In, in order to realize bigger displacement, increases the diameter of cross-section semicircle segmental arc 1, increases variable cross-section section 2 and lower variable cross-section
The length of section 4, upper linkage section 3, lower linkage section 5 are 130mm long, wide 270mm, thick 10mm.Upper variable cross-section section 2, lower variable cross-section section 4 are long
270mm, widest part width 270mm, most narrow place's width are 70mm, thick 10mm.The internal diameter of cross-section semicircle segmental arc 1 is 65mm,
Outer diameter is 75mm, width 70mm, thick 10mm.Linkage section 3, lower linkage section 5, upper variable cross-section section 2 on damper in the embodiment,
Lower variable cross-section section 4 and cross-section semicircle segmental arc 1 are all made of the production of Q195 steel.Convenient for load, combination of dampings device is fixed on one
In box shedding motion, box shedding motion includes top panel 6, lower panel 7, two hollow out side panels 9, fixing end bottom plates 8.On
The lower linkage section 5 of the upper linkage section 3 and lower row's damper of arranging U-shaped variable cross-section mild steel damper respectively with top panel 6, lower panel 7
Be connected with, the lower linkage section 5 of the upper linkage section 3 and lower row's damper of the U-shaped variable cross-section mild steel damper of upper row it is outermost
End is concordant with the upper surface of box shedding motion plate 6, the outermost end of lower panel 7 respectively, under the upper U-shaped variable cross-section mild steel damper of row
The upper linkage section 3 of linkage section 5 and the U-shaped variable cross-section mild steel damper of lower row is connected with intermediate connection activity steel plate 10,
The free one end of connection activity steel plate 10 is located in box shedding motion, and the other end and loading device consolidate, two hollow out side panels 9
Middle part is provided with groove, and groove height is more bigger than connection activity 10 thickness of steel plate, and connection activity steel plate 10 is inserted into two hollow out sides
In the groove of plate 9, when making load, connection activity steel plate 10 can only be along the axial movement of U-shaped variable cross-section damper.U in every row
The cross-section semicircle segmental arc 1 of type variable cross-section mild steel damper is towards 8 direction of fixing end bottom plate.In addition, box-type device open end away from
Loading device 436mm, box shedding motion and connection activity steel plate 10 are made of Q345B steel.
In the present embodiment, original state combination of dampings device does not stress, when connection activity steel plate 10 is by slow axial drawing
When power, the cross-section arc section 1 of two U-shaped variable cross-section mild steel dampers is moved by the mobile direction of connection activity steel plate 10 is pulled to
It is dynamic, plane is contacted and gradually become with connection activity steel plate 10, under the upper variable cross-section section 2 and lower row's damper of upper row's damper
Variable cross-section section 4 bends and surrenders, and bending sections are gradually increased.When damper displacement reaches 300mm, change load side
To the section of bending part first reduces, and when bending sections reach minimum, damper is moved back into original state.Continue to load
Afterwards, the section of bending part starts to increase, the upper variable cross-section section 2 of the lower variable cross-section section 4 of upper row's damper and lower row's damper by
It is progressive to enter to be bent yield situation, when damper displacement reaches -300mm, change loading direction.28 are recycled by above-mentioned loading method
After period, the force-displacement curve tested such as Figure 12 shows, damper power output increases obviously with displacement, has significantly quasi- line
Property Hysteretic Type Damping feature, hysteresis loop is full, and energy consumption effect of damper is good.
Embodiment 3
As shown in figures 13-16, in the present embodiment, a combination of dampings device is constituted by four U-shaped variable cross-section mild steel dampers,
Four U-shaped variable cross-section mild steel dampers are divided into two rows, every row two, have in the U-shaped variable cross-section mild steel damper of two rows
One connection activity steel plate 10, for the U-shaped variable cross-section mild steel damper of two rows to link together.It is U-shaped in the embodiment
Variable cross-section mild steel damper, upper linkage section 3, lower linkage section 5 are 130mm long, wide 270mm, thick 10mm.Upper variable cross-section section, lower become cut
Face segment length 270mm, widest part width 270mm, most narrow place's width are 70mm, thick 10mm.The internal diameter of cross-section semicircle segmental arc is
50mm, outer diameter 70mm, width 70mm, thick 10mm.Linkage section, lower linkage section, upper variable cross-section on damper in the embodiment
Section, lower variable cross-section section and cross-section semicircle segmental arc are all made of the production of Q195 steel.Convenient for load, combination of dampings device is fixed on one
In box shedding motion, box shedding motion includes top panel 6, lower panel 7, two hollow out side panels 9, fixing end bottom plates 8.On
The upper linkage section 3 of two U-shaped variable cross-section mild steel dampers of row and the lower linkage section 5 of the U-shaped variable cross-section mild steel damper of lower row two
It is connected with respectively with top panel 6, lower panel 7, the U-shaped variable cross-section mild steel damper cross-section semicircle segmental arc 1 of every row two is most
The spacing of outer end is 60mm, upper linkage section 3 and lower company positioned at the U-shaped variable cross-section mild steel damper of box shedding motion opening
It is concordant to connect the upper surface of the outermost end of section 5 and box shedding motion plate 6, the outermost end of lower panel 7.The upper U-shaped variable cross-section mild steel resistance of row
The upper linkage section 3 of the lower linkage section 5 of Buddhist nun's device and the U-shaped variable cross-section mild steel damper of lower row and an intermediate connection activity steel plate 10 use spiral shell
It tethering and connects, intermediate free one end of connection activity steel plate 10 is located in box shedding motion, and the other end and loading device consolidate, and two
Groove is provided in the middle part of a hollow out side panel 9, groove height is more bigger than connection activity 10 thickness of steel plate, and connection activity steel plate 10 is inserted into
It in two 9 grooves of hollow out side panel, transport connection activity steel plate 10 when load can only along the axial direction of U-shaped variable cross-section mild steel damper
It is dynamic.In addition, be located at U-shaped variable cross-section mild steel damper linkage section outermost end close to fixing end bottom plate away from fixing end bottom plate 8 away from
From for 310mm, box shedding motion open end is away from loading device 370mm.Box shedding motion and connection activity steel plate 10 use
The production of Q345B steel.
In the present embodiment, original state combination of dampings device does not stress, when connection activity steel plate 10 is by slow axial drawing
When power, the cross-section arc section 1 of four U-shaped variable cross-section mild steel dampers is moved by the mobile direction of connection activity steel plate 10 is pulled to
It is dynamic, plane is contacted and gradually become with connection activity steel plate 10, under the upper variable cross-section section 2 and lower row's damper of upper row's damper
Variable cross-section section 4 bends and surrenders, and bending sections are gradually increased.When damper displacement reaches 290mm, change load side
To the section of bending part first reduces, and when bending sections reach minimum, damper is moved back into original state.Continue to load
Afterwards, the section of bending part starts to increase, the upper variable cross-section section 2 of the lower variable cross-section section 4 of upper row's damper and lower row's damper by
It is progressive to enter to be bent yield situation.It is as shown in figure 16 to test obtained force-displacement curve, power output increases obviously with displacement, has bright
Aobvious pseudo-linear Hysteretic Type Damping feature, hysteresis loop is full, and energy consumption effect of damper is good.
Above-described embodiment, which is intended merely to become apparent from, illustrates that technical solution of the present invention made enumerates, not to of the invention
It limits, those skilled in the art are according to the common knowledge of this field to the accommodation of technical scheme also in this Shen
Please be within protection scope, in short, above-described embodiment is only to enumerate, the protection scope of the application is with scope
It is quasi-.
Claims (10)
1. a kind of U-shaped variable cross-section mild steel damper with pseudo-linear Hysteretic Type Damping feature, it is characterised in that：Including cross-section half
Arc section (1), upper variable cross-section section (2), upper linkage section (3), lower variable cross-section section (4), lower linkage section (5)；The cross-section semicircle
Segmental arc (1) both ends are connect with the most narrow place in section of upper variable cross-section section (2), lower variable cross-section section (4) respectively, the upper variable cross-section section
(2), lower variable cross-section section (4) section the widest part is connected with upper linkage section (3), lower linkage section (5) respectively, upper linkage section (3), under
Linkage section (5) other end is provided with bolt hole, for the U-shaped variable cross-section mild steel damper to be connected with the structure of damping is needed
It connects.
2. the U-shaped variable cross-section mild steel damper according to claim 1 with pseudo-linear Hysteretic Type Damping feature, feature exist
In：The upper linkage section (3), lower linkage section (5) long 100-180mm, wide 160-300mm, thick 10-15mm.
3. the U-shaped variable cross-section mild steel damper according to claim 2 with pseudo-linear Hysteretic Type Damping feature, feature exist
In：The upper variable cross-section section (2), lower variable cross-section section (4) long 125-300mm, widest part width 160-300mm, most narrow place are wide
Degree is 40-70mm, thick 10-15mm.
4. the U-shaped variable cross-section mild steel damper according to claim 3 with pseudo-linear Hysteretic Type Damping feature, feature exist
In：The internal diameter of the cross-section semicircle segmental arc (1) is 30-65mm, outer diameter 50-75mm, width 40-70mm, thick 10-
15mm。
5. the U-shaped variable cross-section mild steel damper according to claim 1-4 with pseudo-linear Hysteretic Type Damping feature,
It is characterized in that：The cross-section semicircle segmental arc (1), upper variable cross-section section (2), upper linkage section (3), lower variable cross-section section (4), lower company
It connects section (5) and is all made of the production of Q195 steel.
6. a kind of combination unit with the described in any item U-shaped variable cross-section mild steel dampers of claim 1-5, feature exist
In：U-shaped variable cross-section mild steel damper is fixed in a box shedding motion, and box shedding motion includes top panel (6), lower panel
(7), two side panels (9), fixing end bottom plate (8)；Linkage section (3) and box shedding motion on U-shaped variable cross-section mild steel damper
Top panel (6) is bolted, and upper linkage section (3) outermost face is concordant with box shedding motion top panel (6) outermost face, lower company
Section (5) is connect to be bolted with a connection activity steel plate (10)；The side panel (9) on box shedding motion both sides is internal close to lower panel
(7) open up fluted at, groove height is more bigger than connection activity steel plate (10) thickness, and connection activity steel plate (10) is inserted into side panel
(9) in groove, the sponson of connection activity steel plate (10) is connect with loading device.
7. combination unit according to claim 6, it is characterised in that：The cross-section semicircle of U-shaped variable cross-section mild steel damper
Segmental arc (1) and box shedding motion fixing end bottom plate (8) inner surface distance are 300mm, the over-hang part of connection activity steel plate (10)
Dividing length is 200mm, inside stretches partial-length 400mm.
8. a kind of combination unit with the described in any item U-shaped variable cross-section mild steel dampers of claim 1-5, feature exist
In：The device is made of a combination of dampings device, two U-shaped variable cross-section mild steel dampers two U-shaped variable cross-section mild steel dampers
It is divided into two rows, every row one, a connection activity steel plate (10) is arranged in the U-shaped variable cross-section mild steel damper centre of two rows,
For the U-shaped variable cross-section mild steel damper of two rows to be linked together；Combination of dampings device is fixed in a box shedding motion,
Box shedding motion includes top panel (6), lower panel (7), two hollow out side panels (9), fixing end bottom plate (8)；The upper U-shaped change of row
The lower linkage section (5) of the upper linkage section (3) of section mild steel damper and lower row's damper respectively with top panel (6), lower panel (7)
It is connected with, the lower linkage section (5) of the upper linkage section (3) and lower row's damper of the U-shaped variable cross-section mild steel damper of upper row
Outermost end is concordant with the upper surface of box shedding motion plate (6), the outermost end of lower panel (7) respectively, the upper U-shaped variable cross-section mild steel resistance of row
The lower linkage section (5) of Buddhist nun's device and the upper linkage section (3) of the U-shaped variable cross-section mild steel damper of lower row and intermediate connection activity steel plate
(10) it is connected with, connection activity steel plate (10) free one end is located in box shedding motion, and the other end and loading device are solid
Knot, two hollow out side panels (9) middle parts are provided with groove, and groove height is more bigger than connection activity steel plate (10) thickness, connection activity
Steel plate (10) is inserted into the groove of two hollow out side panels (9)；The cross-section semicircle of U-shaped variable cross-section mild steel damper in every row
Segmental arc (1) is towards fixing end bottom plate (8) direction.
9. a kind of combination unit with the described in any item U-shaped variable cross-section mild steel dampers of claim 1-5, feature exist
In：A combination of dampings device is made of four U-shaped variable cross-section mild steel dampers, four U-shaped variable cross-section mild steel dampers are divided into
Lower two rows, every row two have a connection activity steel plate (10) in the U-shaped variable cross-section mild steel damper of two rows, for will be upper and lower
Two rows of U-shaped variable cross-section mild steel dampers link together；Combination of dampings device is fixed in a box shedding motion, box opening dress
It sets including top panel (6), lower panel (7), two hollow out side panels (9), fixing end bottom plate (8)；Two U-shaped variable cross-sections of upper row are soft
The lower linkage section (5) of the upper linkage section (3) of steel damper and the U-shaped variable cross-section mild steel damper of lower row two respectively with top panel
(6), lower panel (7) is connected with, U-shaped variable cross-section mild steel damper cross-section semicircle segmental arc (1) outermost end of every row two
Spacing is 50-100mm, upper linkage section (3) and lower company positioned at the U-shaped variable cross-section mild steel damper of box shedding motion opening
It is concordant to connect the upper surface of the outermost end of section (5) and box shedding motion plate (6), the outermost end of lower panel (7)；The upper U-shaped variable cross-section of row
The lower linkage section (5) of mild steel damper and the upper linkage section (3) of the U-shaped variable cross-section mild steel damper of lower row and an intermediate connection activity
Steel plate (10) is connected with, and intermediate connection activity steel plate (10) free one end is located in box shedding motion, the other end with
Loading device consolidation, two hollow out side panels (9) middle parts are provided with groove, and groove height is omited than connection activity steel plate (10) thickness
Greatly, connection activity steel plate (10) is inserted into two hollow out side panel (9) grooves, and connection activity steel plate (10) can only edge when making to load
The axial movement of U-shaped variable cross-section mild steel damper.
10. according to the described in any item combination units of claim 8-9, it is characterised in that：Box shedding motion open end is away from adding
It carries and sets 300-500mm.
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| CN201810796954.6A CN108867913A (en) | 2018-07-19 | 2018-07-19 | U-shaped variable cross-section mild steel damper and combination unit with pseudo-linear Hysteretic Type Damping feature |
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| CN201810796954.6A CN108867913A (en) | 2018-07-19 | 2018-07-19 | U-shaped variable cross-section mild steel damper and combination unit with pseudo-linear Hysteretic Type Damping feature |
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| CN111794085A (en) * | 2020-07-17 | 2020-10-20 | 河北工业大学 | Variable cross-section yielding L-shaped metal damper |
| CN114809344A (en) * | 2022-04-07 | 2022-07-29 | 中建二局第一建筑工程有限公司 | Multi-section simultaneous yield metal damping device |
| CN114856037A (en) * | 2022-06-22 | 2022-08-05 | 方圆建设集团有限公司 | Variable damping assembled shear force wall |
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