CN106382040A - Friction energy dissipation self reset steel framework structure - Google Patents
Friction energy dissipation self reset steel framework structure Download PDFInfo
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- CN106382040A CN106382040A CN201610822818.0A CN201610822818A CN106382040A CN 106382040 A CN106382040 A CN 106382040A CN 201610822818 A CN201610822818 A CN 201610822818A CN 106382040 A CN106382040 A CN 106382040A
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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
- E04H9/024—Structures with steel columns and beams
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Abstract
The invention discloses a friction energy dissipation self reset steel framework structure, which comprises at least one structure unit, wherein the structure unit comprises two framework posts, two I-shaped steel beams, pin shafts, two end plates, a friction energy dissipation connector and a pre-tensioning rod, wherein the pin shafts are used for connecting the end parts of the two I-shaped steel beams with the framework posts; the two end plates are arranged at the two ends of the two I-shaped steel beams; the friction energy dissipation device is clamped between flanges of the two I-shaped steel beams; the pre-tensioning rods are connected with the two end plates; an outer friction plate of the friction energy dissipation device is connected with one I-shaped steel beam; an inner friction plate is connected with the other I-shaped steel beam; the pre-tensioning rod is positioned in the web plate position of the I-shaped steel beams; prestress is exerted so that the end plates arranged at the two ends are tightly tensioned. The friction energy dissipation self reset steel framework structure has the advantages that the self reset steel framework can be assembled in site after the factory prefabrication; under the earthquake effect, the beam top bottom is not opened; the post distance keeps unchanged; in addition, the stress of the left and right ends of the I-shaped steel beams keeps identical; the goal of flexibly and independently regulating and controlling the structure intensity, rigidity and tensibility of the structure in the design process can be finally achieved.
Description
Technical field
The invention belongs to field of civil engineering, be related to a kind of pass through under frequently occurred earthquake and rarely occurred earthquake friction energy-dissipating from
Reset steel-frame structure.
Background technology
Earthquake gives people class and brings extremely serious disaster.When strong earthquakes come temporarily, engineering structure will bear Seismic input
Huge energy and produce strong structural response, the local failure of structure thereby resulting in or total Collapse constitute earthquake and cause calamity
Main factor.China is the country of earthquake more than, and ruinous earthquake not only occurs on the island of Taiwan of plate margin, Qinghai-Tibet height
The areas such as former and Xinjiang, and be distributed widely in inside continent.Wenchuan earthquakes in 2008 and Yushu earthquake in 2010 all cause huge
Big casualties and economic loss.Therefore, research economic and reliable, the Aseismic Structure System of performance efficiency, mitigates for effective
Earthquake disaster, guarantee Sustainable Socioeconomic Development have important practical significance.
Traditional Aseismic Design uses Ductility Design Method, that is, under geological process, by structure division component
Surrender in advance and destroy, but entirety will not be collapsed, the plastic deformation relying on component, come the most seismic energy that to dissipate, leads to tie
Structure is easy to after macroseism produce badly damaged and residual deformation.And excessive residual deformation does not only result in damaged structure in aftershock
Collapse probability be significantly increased, also can make structure shake after reparation difficulty and expense be significantly increased.
Self-resetting steel-frame structure is a kind of new structure providing Self-resetting power by the pre- pull bar of tensioning for structure,
The residual deformation of structure can be effectively reduced after structure is subject to geological process.Under frequently occurred earthquake effect, Self-resetting steel frame
Structure Beam-column node gap is not opened, and similar to moment resisting, its structural elements remains elasticity；In middle shake or big shake effect
Under, Self-resetting steel-frame structure opens gap by bean column node top bottom, makes to be arranged on the dissipative member of node location to consume
Seismic energy, even avoids agent structure to damage to mitigate, and relies on pre- pull bar so that gap is closed and realize Self-resetting after geological process
Function.By the adjustment to dissipative member size, pre- pull bar quantity and initial tension, beam column scantling, Self-resetting steel can be made
Rigidity under lateral loads for the frame structure, bearing capacity, ductility and Hysteresis Behavior change, and this property is permissible
Engineer is facilitated to carry out the adjustment of different parts rigidity of structure coupling in structure design.
But the post of traditional Self-resetting steel-frame structure increases with opening of bean column node away from meeting it is necessary to adopt multiple
Miscellaneous floor arrangement form with avoid post away from increase when floor crack in tension.Additionally, traditional Self-resetting steel-frame structure is usual
Need to carry out tensioning and the Member Welding of pre- pull bar at the construction field (site), be unfavorable for ensureing construction quality and difficulty of construction is larger, and
Although the sleeve being recently proposed-pre- rod-pulling type Self-resetting steel-frame structure can solve the above problems, its force-mechanism is complicated,
Unequal in the left and right end moment of flexure of geological process underbeam, it is that structure design brings huge challenge.The all serious resistance of these shortcomings
Application and the popularization of Self-resetting steel-frame structure are hindered.
Content of the invention
Technical problem：The present invention provides one kind not only to achieve to carry out prefabricated and prestressed stretch-draw moreover it is possible on ground in factory
The lower holding post of shake effect, away from constant all the time, solves sleeve-unequal shortcoming of pre- rod-pulling type Self-resetting beam two ends moment of flexure simultaneously
Friction energy-dissipating Self-resetting steel-frame structure.
Technical scheme：The Self-resetting steel-frame structure of the friction energy-dissipating of the present invention, including at least one construction unit, described
Construction unit include two frame columns, steel I-beam and lower steel I-beam in the identical of section, be located at described upper steel I-beam and
The Self-resetting system being connected as a single entity between lower steel I-beam and by the two and friction energy dissipation device, described upper steel I-beam and lower I-steel
The end of beam passes through upper pin respectively and lower bearing pin is connected with frame column；
Described Self-resetting system includes two end plates, the pre- pull bar being arranged between described two end plates, and described end plate is pressed on
Upper steel I-beam and the end of lower steel I-beam, pre- pull bar is anchored on the end plate at two ends by anchor and is applied with pre- answering
Two ends are strained by power；
Described friction energy dissipation device includes two blocks of external friction plates, the interior friction plate being located between described two blocks of external friction plates, described interior
It is provided with friction material and stainless steel material, high-strength bolt passes through and is reserved on interior friction plate between friction plate and external friction plate
Slide opening and the bolt hole that is reserved on external friction plate simultaneously apply bolt pretightening, and inside and outside friction plate is compressed, friction energy dissipation device with
The connected mode of upper steel I-beam and lower steel I-beam is：Described interior friction plate top edge is connected with upper steel I-beam, external friction
Plate lower limb is connected with lower steel I-beam, or, described external friction plate top edge is connected with upper steel I-beam, and interior friction plate is following
Edge is connected with lower steel I-beam.
Further, in Self-resetting steel-frame structure of the present invention, described pre- pull bar is arranged at steel I-beam and lower I-shaped
The web position of girder steel.
Further, in Self-resetting steel-frame structure of the present invention, described upper steel I-beam is near lower flange position and lower work
Word girder steel all carries out cutting, the part web of end plate and upper steel I-beam and lower flange, lower steel I-beam near top flange position
Part web and top flange end flush contact.
Further, in Self-resetting steel-frame structure of the present invention, friction material is fixed in the groove of external friction plate, described
Stainless steel material is fixed on interior friction plate surface.
In a preferred embodiment of the present invention, the Self-resetting steel-frame structure of friction energy-dissipating includes in the vertical direction successively
The multiple construction units sharing a frame column connecting.
In a preferred embodiment of the present invention, the Self-resetting steel-frame structure of friction energy-dissipating is included in the horizontal direction successively
The multiple construction units connecting, two adjacent structural units share a frame column.
When the present invention is directed to existing Self-resetting steel-frame structure and is subject to geological process, floor and framework lateral deformation be inharmonious,
Constructional difficulties and force-mechanism challenge, produce seam by the changing of the relative positions that is parallel to each other under geological process for the upper underbeam in end
Gap.This version not only achieve factory carry out prefabricated and prestressed stretch-draw moreover it is possible under geological process holding post away from
All the time constant, solve sleeve-unequal shortcoming of pre- rod-pulling type Self-resetting beam two ends moment of flexure simultaneously.
Beneficial effect：The present invention compared with prior art, has advantages below：
（1）The Self-resetting steel-frame structure of the technical program in geological process lower prop away from remaining constant, can avoid floor with
Deformation between framework.For traditional Self-resetting steel-frame structure, bean column node is opened by back bottom under geological process
Open generation gap, make the dissipative member at node location produce power consumption, but the gap producing makes post away from increase, need to adopt
Complicated floor arrangement form avoids floor crack in tension.And the technical program is mutually flat under geological process by upper underbeam
It is poor, thus avoid upper beam top and open causing deformation between floor and framework that the row changing of the relative positions produces horizontal displacement.
（2）The technical program can reduce or even avoid the damage of agent structure during geological process effectively.For bending resistance
Framework by the surrender in advance of partial component and destruction, the plastic deformation relying on component come the most seismic energy that to dissipate, and
As the damage of the structural elements such as beam, post is often difficult to repair, it is more easy to cause collapsing of structure.Upper underbeam in the technical program with
Frame column is all connected using bearing pin, can effectively avoid structure to produce plastic hinge under geological process.Upper underbeam is made in earthquake
With under be parallel to each other the changing of the relative positions produce horizontal displacement poor, cause friction energy dissipation device sliding produce power consumption, and agent structure holding bullet
Proterties state, it is achieved that the damage of structure is controlled.The cost repaired after so not only can effectively reducing structure shake, and apply
Pretension in pre- pull bar only need to overcome the frictional force of friction energy dissipation device that structure just can be made to realize complete Self-resetting, and without examining
Consider the impact of agent structure plastic deformation.
（3）The technical program can achieve that Self-resetting steelframe carries out prefabricated and prestressed stretch-draw in factory, when constructing at the scene
Only need each structural elements is assembled, be especially suitable for industrialized production and manufacture.The processing matter of each component not only can be ensured
Amount and prestress stretching quality are it is also possible to accelerating construction progress.Because its processing technology is similar with traditional Self-resetting framework, factory
Family need not make larger adjustment and just can carry out industrialized production, thus reducing difficulty and the cost of manufacture, have higher valency
Lattice competitiveness.
（4）The technical program adopts the laminated form pressing from both sides friction energy dissipation device between upper underbeam, simple structure, and cost is relatively low.Set
Although cylinder-pre- rod-pulling type Self-resetting steel-frame structure can solve some problems of traditional Self-resetting framework, its component is various,
Form is complicated.The components such as tee girder that it adopts, inside and outside sleeve undoubtedly increase the steel using amount of beam.Can will pass in the technical program
The Vierendeel girder of system is equivalent to the short beam of two section identicals, and steel using amount is close with moment resisting beam.
（5）, using the laminated form pressing from both sides friction energy dissipation device between the upper and lower, force-mechanism is simply clear and definite for the technical program.Sleeve-
Under the beam that the beam superstructure that in pre- rod-pulling type Self-resetting steel-frame structure, tee girder is welded to form with outer sleeve is formed with inner sleeve
Portion's structure stress situation is different, the superstructure impact with axial deformation by bending simultaneously of beam, and the substructure of beam is only subject to
The impact of axial deformation, the poor rigidity that both exist all the time also can cause the left and right end moment of flexure of beam unequal, and its bending moment ratio with
Geological process is of different sizes to be continually changing, and is structure design and using bringing huge complexity.The technical program is made by earthquake
Used in during the relative changing of the relative positions of upper underbeam generation, the upper and lower beam section size due to adopting is identical with rigidity, and the left and right end moment of flexure of beam begins
Last phase etc., the stressing conditions of upper underbeam are also identical.
Brief description
Fig. 1 is the front view of apparatus of the present invention；
Fig. 2 is the A-A profile of Fig. 1；
Fig. 3 is the schematic diagram of Fig. 1 end plate；
Fig. 4 is the front view of Fig. 1 friction energy dissipation device；
Fig. 5 is the A-A profile of Fig. 4 friction energy dissipation device；
Fig. 6 is the schematic diagram of friction plate in Fig. 4 friction energy dissipation device；
Fig. 7 is the schematic diagram of Fig. 4 friction energy dissipation device external friction plate；
Fig. 8 is apparatus of the present invention to left dislocation operating diagram；
Fig. 9 is the displacement operating diagram to the right of apparatus of the present invention.
In figure has：Frame column 1, upper steel I-beam 2, Self-resetting dissipative system 3, end plate 31, pre- pull bar 32, pre- rod anchor
Device 33, upper pin 4, lower steel I-beam 5, lower bearing pin 6, friction energy dissipation device 7, external friction plate 71, stainless steel material 72, friction material
Material 73, high-strength bolt 74, interior friction plate 75.
Specific embodiment
As shown in Fig. 1 ~ Fig. 7, this structure of Self-resetting steel frame of friction energy-dissipating includes at least one construction unit, described knot
Structure unit includes two frame columns 1, steel I-beam 2 and lower steel I-beam 5 in the identical of section, is located at described upper steel I-beam 2
The Self-resetting system 3 being connected as a single entity and between lower steel I-beam 5 and by the two and friction energy dissipation device 7, described upper steel I-beam 2 and under
The end of steel I-beam 5 passes through upper pin 4 respectively and lower bearing pin 6 is connected with frame column 1；
Described Self-resetting system 3 includes two end plates 31, the pre- pull bar 32 being arranged between described two end plates 31, described end plate
31 ends being pressed on steel I-beam 2 and lower steel I-beam 5, pre- pull bar 32 is anchored at the end plate at two ends by anchor 33
On 31 and be applied with prestressing force two ends are strained；Described pre- pull bar 33 is arranged at steel I-beam 2 and the web of lower steel I-beam 5
Position.
Described friction energy dissipation device 7 includes two blocks of external friction plates 71, the interior friction being located between described two blocks of external friction plates 71
Plate 75, is provided with friction material 73 and stainless steel material 72, high-strength bolt 74 between described interior friction plate 75 and external friction plate 71
Pass through the slide opening being reserved on interior friction plate 75 and the bolt hole being reserved on external friction plate 71 and apply bolt pretightening, will
Inside and outside friction plate compresses, and friction energy dissipation device 7 with the connected mode of upper steel I-beam 2 and lower steel I-beam 5 is：Described interior friction
Plate 75 top edge is connected with upper steel I-beam 2, and external friction plate 71 lower limb is connected with lower steel I-beam 5, or, described external friction
Plate 71 top edge is connected with upper steel I-beam 2, and interior friction plate 75 lower limb is connected with lower steel I-beam 5.
As shown in fig. 6, go out the maximum sliding distance of high-strength bolt according to the sway calculation of structure after, in order to determine interior friction
The length of slide opening is reserved in plate 75 centre position it is proposed that the width of reserved slide opening is slightly larger than the diameter 1mm of high-strength bolt 74, such as
Shown in Fig. 7, the centre position prepared screw-bolt hole in outer friction plate 71 side is it is proposed that diameter of bolt hole is slightly larger than high-strength bolt 74
Diameter 1mm about, and it is provided for the groove of fixed friction material 73 it is proposed that depth of groove is about friction material in bolt hole both sides
Expect the half of 73 thickness.For avoiding friction material to occur slipping in Frictional Slipping, the binding materials such as epoxy resin need to be adopted to incite somebody to action
Friction material 73 is fixed in the groove being reserved on external friction plate, and friction material 73 can select the material such as brass, steel.No
Rust Steel material 72 general using being fixed in by the way of welding in interior friction plate surface.
Upper steel I-beam 2 all carries out cutting, end plate 31 with lower steel I-beam 5 near top flange position near lower flange position
Part web and lower flange, the part web of lower steel I-beam 5 and top flange end flush contact with upper steel I-beam 2.
The operation principle of the Self-resetting steel-frame structure of friction energy-dissipating is as shown in Fig. 8 ~ Fig. 9：Due to there is difference in height, on ground
Shake act on lateral displacement at upper pin 4 and lower bearing pin 6 height for the Frame Column Under 1 of different sizes so that being connected with upper pin 4
Relative horizontal movement is produced between upper steel I-beam 2 and the lower steel I-beam 5 being connected with lower bearing pin 6.As shown in figure 8, working as structure
To the right during sidesway, left side end plate and right side end plate respectively under the promotion of lower steel I-beam 5 and upper steel I-beam 2 to two sidesways
Dynamic, thus producing gap.As shown in figure 9, when structure sidesway to the left, left side end plate and right side end plate are respectively in upper steel I-beam
2 and lower steel I-beam 5 promotion under to two side shiftings, thus producing gap.Thereby guarantee that in structure under geological process, friction
In energy consumer 7 there is sidesway with upper and lower steel I-beam in inside and outside friction plate respectively, makes the friction material being fixed on external friction plate
Produce friction with the stainless steel material being fixed on interior friction plate, provide energy dissipation capacity for structure, pre- pull bar 32 is subject to all the time simultaneously
Stretching length, respectively structure provide self-resetting capability.Either sidesway still sidesway to the right to the left, 2 liang of steel I-beam in connection
Distance between the upper pin 4 at end is constant all the time, and therefore post is not away from changing.
The installation procedure of present configuration is：Friction material 73 is fixed on by external friction using binding materials such as epoxy resin
In the reserved groove of plate 71 → stainless steel material 72 is fixed by welding on the surface of interior friction plate 75 → high-strength bolt
Through the slide opening of the bolt hole of external friction plate and interior friction plate and pretightning force applied by friction energy dissipation device 7 by torque spanner etc.
Upper steel I-beam 2 compress → is cut out near top flange position by inside and outside friction plate near lower flange position and lower steel I-beam 5
Cut → the interior friction plate 75 of friction energy dissipation device 7 is connected on upper steel I-beam 2 lower flange, the external friction plate of friction energy dissipation device 7
71 be connected on lower steel I-beam 5 lower flange → left and right anchor end plate 31 is positioned upper and lower steel I-beam two ends → by prestretching
Bar 32 passes through the hole slot that left and right anchor end plate 31 is reserved, and applies prestressing force and is anchored pre- pull bar 32 using end anchorage system 33
On the end plate 31 at two ends → and reserve hole slot on upper steel I-beam 2 and lower steel I-beam 5 web, and it is welded on frame column 1
Otic placode pass through respectively upper pin 4 and lower bearing pin 6 carry out hinged.
Above-described embodiment be only the preferred embodiment of the present invention it should be pointed out that：For those skilled in the art
For, under the premise without departing from the principles of the invention, some improvement and equivalent can also be made, these are to right of the present invention
Require to improve and the technical scheme after equivalent, each fall within protection scope of the present invention.
Claims (6)
1. a kind of Self-resetting steel-frame structure of friction energy-dissipating is it is characterised in that this structure includes at least one construction unit, institute
State construction unit and include two frame columns（1）, steel I-beam in the identical of section（2）With lower steel I-beam（5）, be located at described on
Steel I-beam（2）With lower steel I-beam（5）Between and Self-resetting system that the two is connected as a single entity（3）And friction energy dissipation device（7）, institute
State steel I-beam（2）With lower steel I-beam（5）End respectively pass through upper pin（4）And lower bearing pin（6）With frame column（1）Even
Connect；
Described Self-resetting system（3）Including two end plates（31）, be arranged at described two end plates（31）Between pre- pull bar（32）,
Described end plate（31）It is pressed on steel I-beam（2）With lower steel I-beam（5）End, pre- pull bar（32）By anchor
（33）It is anchored at the end plate at two ends（31）Go up and be applied with prestressing force to strain two ends；
Described friction energy dissipation device（7）Including two blocks of external friction plates（71）, be located at described two blocks of external friction plates（71）Between in rub
Wiping board（75）, described interior friction plate（75）With external friction plate（71）Between be provided with friction material（73）And stainless steel material
（72）, high-strength bolt（74）Pass through and be reserved in interior friction plate（75）On slide opening and be reserved in external friction plate（71）On bolt hole
And apply bolt pretightening, inside and outside friction plate is compressed, friction energy dissipation device（7）With upper steel I-beam（2）With lower steel I-beam
（5）Connected mode be：Described interior friction plate（75）Top edge and upper steel I-beam（2）Connect, external friction plate（71）Lower limb
With lower steel I-beam（5）Connect, or, described external friction plate（71）Top edge and upper steel I-beam（2）Connect, interior friction plate
（75）Lower limb and lower steel I-beam（5）Connect.
2. the Self-resetting steel-frame structure of friction energy-dissipating according to claim 1 is it is characterised in that described pre- pull bar（33）
It is arranged at steel I-beam（2）With lower steel I-beam（5）Web position.
3. the Self-resetting steel-frame structure of friction energy-dissipating according to claim 1 is it is characterised in that described upper steel I-beam
（2）Near lower flange position and lower steel I-beam（5）All carry out cutting, end plate near top flange position（31）With upper steel I-beam
（2）Part web and lower flange, lower steel I-beam（5）Part web and top flange end flush contact.
4. the Self-resetting steel-frame structure of friction energy-dissipating according to claim 1 is it is characterised in that described friction material
（73）It is fixed on external friction plate（71）Groove in, described stainless steel material（72）It is fixed on interior friction plate（75）Surface.
5. the Self-resetting steel-frame structure of the friction energy-dissipating according to claim 1,2,3 or 4 is it is characterised in that this structure
It is sequentially connected and shares a frame column including in the vertical direction（1）Multiple construction units.
6. the Self-resetting steel-frame structure of the friction energy-dissipating according to claim 1,2,3 or 4 is it is characterised in that this structure
Including the multiple construction units being sequentially connected in the horizontal direction, two adjacent structural units share a frame column（1）.
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| CN201610822818.0A CN106382040B (en) | 2016-09-14 | 2016-09-14 | A kind of Self-resetting steel-frame structure of friction energy-dissipating |
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| CN106382040B CN106382040B (en) | 2019-03-19 |
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Cited By (9)
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| CN106906910A (en) * | 2017-03-28 | 2017-06-30 | 华侨大学 | A kind of frame structure with runback bit function |
| CN108560709A (en) * | 2018-05-25 | 2018-09-21 | 东南大学 | A kind of floor exempts from the twin beams Self-resetting Aseismic Steel Frames of damage |
| CN108716247A (en) * | 2018-05-25 | 2018-10-30 | 东南大学 | A kind of assembled twin beams Self-resetting Aseismic Steel Frames |
| CN109403496A (en) * | 2018-12-17 | 2019-03-01 | 福州大学 | Rub mild steel composite buffer and its assembly method |
| CN109898701A (en) * | 2019-04-17 | 2019-06-18 | 商洛学院 | A kind of shear wall corner component being conveniently replaceable |
| CN111005466A (en) * | 2018-06-26 | 2020-04-14 | 温州盖一机械有限公司 | Assembled friction energy dissipater and mounting method |
| CN111980190A (en) * | 2019-05-21 | 2020-11-24 | 任吉如 | Anti-seismic device for building |
| CN113789881A (en) * | 2021-09-18 | 2021-12-14 | 福州大学 | Damper suitable for step load and using method |
| CN115627688A (en) * | 2022-10-17 | 2023-01-20 | 中交公路长大桥建设国家工程研究中心有限公司 | Intelligent monitoring type bridge friction damper |
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| CN108560709A (en) * | 2018-05-25 | 2018-09-21 | 东南大学 | A kind of floor exempts from the twin beams Self-resetting Aseismic Steel Frames of damage |
| CN108716247A (en) * | 2018-05-25 | 2018-10-30 | 东南大学 | A kind of assembled twin beams Self-resetting Aseismic Steel Frames |
| CN111005466A (en) * | 2018-06-26 | 2020-04-14 | 温州盖一机械有限公司 | Assembled friction energy dissipater and mounting method |
| CN109403496A (en) * | 2018-12-17 | 2019-03-01 | 福州大学 | Rub mild steel composite buffer and its assembly method |
| CN109403496B (en) * | 2018-12-17 | 2023-09-15 | 福州大学 | Friction mild steel composite damper and assembly method thereof |
| CN109898701A (en) * | 2019-04-17 | 2019-06-18 | 商洛学院 | A kind of shear wall corner component being conveniently replaceable |
| CN111980190A (en) * | 2019-05-21 | 2020-11-24 | 任吉如 | Anti-seismic device for building |
| CN113789881A (en) * | 2021-09-18 | 2021-12-14 | 福州大学 | Damper suitable for step load and using method |
| CN113789881B (en) * | 2021-09-18 | 2022-09-06 | 福州大学 | Damper suitable for step load and using method |
| CN115627688A (en) * | 2022-10-17 | 2023-01-20 | 中交公路长大桥建设国家工程研究中心有限公司 | Intelligent monitoring type bridge friction damper |
| WO2024098503A1 (en) * | 2022-10-17 | 2024-05-16 | 中交公路长大桥建设国家工程研究中心有限公司 | Intelligent monitoring-type bridge friction damper |
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