CN105525698A - Damping force adjustable fireproof viscoelastic damper - Google Patents
Damping force adjustable fireproof viscoelastic damper Download PDFInfo
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- CN105525698A CN105525698A CN201610108539.8A CN201610108539A CN105525698A CN 105525698 A CN105525698 A CN 105525698A CN 201610108539 A CN201610108539 A CN 201610108539A CN 105525698 A CN105525698 A CN 105525698A
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- steel plate
- side steel
- damping force
- chute
- viscoelastic damper
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- Environmental & Geological Engineering (AREA)
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- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a damping force adjustable fireproof viscoelastic damper comprising a first side steel plate, a second side steel plate, a middle steel plate, viscoelastic damping layers and a clamping device, wherein the first side steel plate, the second side steel plate and the middle steel plate are fastened and bonded through the viscoelastic damping layers. The clamping device clamps the first side steel plate and the second side steel plate, and the force of clamping can be adjusted. The damping force adjustable fireproof viscoelastic damper has a fireproofing and heat insulation function, has higher damping force, higher equivalent damping ratio, better energy dissipation damping effect and bidirectional energy consumption, and can be used in a wider temperature range to improve use safety thereof.
Description
Technical field
The present invention relates to building structure energy-dissipating and shock-absorbing technical field, be specifically related to the adjustable fire prevention viscoelastic damper of a kind of damping force.
Background technology
Viscoelastic damper, as a kind of cushion technique device, has larger energy dissipation capacity, and its thickness is less, arranges and does not need to take the whole standard width of a room in an old-style house, be more useful in house and apply.Its main feature is: to wind-induced vibration and geological process, all can obtain good effectiveness in vibration suppression; According to construction scope and damping requirement, can freely design damping wall parameter; Product can be arranged within the walls, does not affect building using function.
Viscoelastic damper is many from structure design angle, and improve the energy-dissipating and shock-absorbing effect of viscoelastic damper, generally formed by three-ply plate and two layers of viscous-elastic material alternate combinations, damper is installed in the structure by connector.When structure be subject to earthquake, wind shake time, between deck, relative displacement occurs, middle steel plate, side steel plate generation relative motion, drive viscous-elastic material reciprocal shear strain heating, loss of energy, realizes the object of energy-dissipating and shock-absorbing.
But viscoelastic damper does not have fire-proof function at present, very easily destroys to cause effectively to play this effect had of viscoelastic damper when breaking out of fire.Meanwhile, current self energy dissipation capacity of viscoelasticity damping material less and under different temperatures environment performance change comparatively obvious, the serviceability temperature scope of viscoelastic damper is restricted.
Therefore, research and develop and a there is fire-proof and thermal-insulation function, there is the viscoelastic damper of more high damping force and equivalent damping ratio, better energy-dissipating and shock-absorbing effect and two-way power consumption, can use to improve its safety in utilization in more wide temperature range simultaneously and necessitate.
Summary of the invention
The invention provides the adjustable fire prevention viscoelastic damper of a kind of damping force, comprise: the first side steel plate, the second side steel plate, middle steel plate, viscoelasticity damping layer, fire proof heat-insulation layer and clamping device, wherein, described first side steel plate, described second side steel plate and rely on viscoelasticity damping layer fastening bonding between described middle steel plate.Described first side steel plate and described second side steel plate step up by described clamping device, and can regulate the dynamics of stepping up.
According to an embodiment of the invention, comprise further: the first fire proof heat-insulation layer and the second fire proof heat-insulation layer, wherein, described first fire proof heat-insulation layer wraps up described viscoelasticity damping layer, and described second fire proof heat-insulation layer is arranged at the surface of described first side steel plate, described second side steel plate and described middle steel plate.
According to an embodiment of the invention, described first side steel plate is identical with width with the length of described second side steel plate, and the width of described first side steel plate and described second side steel plate is greater than the width of described middle steel plate.
According to an embodiment of the invention, described clamping device comprises screw bolt and nut, wherein, described first side steel plate is provided with the first chute and the second chute along its length, described second side steel plate is provided with three chute corresponding with the first chute and four chute corresponding with the second chute along its length, and bolt can run through described first side steel plate with described second side steel plate by described first chute and described 3rd chute, the second chute and the 4th chute and be connected with nut.
According to an embodiment of the invention, described clamping device comprises stiffening rib, the second bolt and the second nut, wherein, described first side steel plate and described second side steel plate external surface are provided with stiffening rib, and described stiffening rib is connected to each other by the second bolt and the second nut.
According to an embodiment of the invention, described first fire proof heat-insulation layer comprises fire resistant cloth and high-temperature heat insulation composite material, and wherein, described fire resistant cloth wraps described high-temperature heat insulation composite material.
According to an embodiment of the invention, described fire resistant cloth is ceramic fiber cloth or high silica cloth.
According to an embodiment of the invention, described high-temperature heat insulation composite material is silica and silicon titanium composite material.
According to an embodiment of the invention, described second fire proof heat-insulation layer is fire-resistant coating for steel structure.
According to an embodiment of the invention, described stiffening rib is at least 6, symmetrical and be distributed in the external surface of described first side steel plate and described second side steel plate, described stiffening rib two ends are provided with bolt hole, and to be connected two symmetrical stiffening ribs with the second nut with the second bolt.
According to an embodiment of the invention, the thickness of described first fire proof heat-insulation layer is 20mm-60mm, and the thickness of described second fire proof heat-insulation layer is 2 ~ 5mm.
According to an embodiment of the invention, the soffit of described first side steel plate, the described upper surface of the first side steel plate and the upper and lower surface of described middle steel plate are plane or male and fomale(M&F).
According to an embodiment of the invention, described first side steel plate is connected with described viscoelasticity damping layer by vulcanization with described middle steel plate.
The adjustable fire prevention viscoelastic damper of damping force of the present invention has fire-proof and thermal-insulation function, there is the viscoelastic damper of more high damping force and equivalent damping ratio, better energy-dissipating and shock-absorbing effect and two-way power consumption, can use to improve its safety in utilization in more wide temperature range simultaneously.
Accompanying drawing explanation
By reading hereafter detailed description of the preferred embodiment, various other advantage and benefit will become cheer and bright for those of ordinary skill in the art.Accompanying drawing only for illustrating the object of preferred embodiment, and does not think limitation of the present invention.And in whole accompanying drawing, represent identical parts by identical reference symbol.Wherein in the accompanying drawings, the multiple identical parts of alphabetic flag instruction after reference number, when making a general reference these parts, by its last alphabetic flag of omission.In the accompanying drawings:
Fig. 1 shows the sectional view according to the adjustable fire prevention viscoelastic damper of the damping force of an embodiment of the invention;
Fig. 2 shows the top view according to the adjustable fire prevention viscoelastic damper of the damping force of an embodiment of the invention;
Fig. 3 shows the upward view according to the adjustable fire prevention viscoelastic damper of the damping force of an embodiment of the invention;
Fig. 4 shows the sectional view according to the adjustable fire prevention viscoelastic damper of the damping force of an embodiment of the invention;
Fig. 5 shows the top view according to the adjustable fire prevention viscoelastic damper of the damping force of an embodiment of the invention;
Fig. 6 shows the upward view according to the adjustable fire prevention viscoelastic damper of the damping force of an embodiment of the invention.
In the accompanying drawings, use same or similar label to refer to same or similar element.
Detailed description of the invention
Below in conjunction with accompanying drawing and concrete embodiment, the invention will be further described.
Fig. 1 shows the sectional view according to the adjustable fire prevention viscoelastic damper of the damping force of an embodiment of the invention.
As shown in Figure 1, the adjustable fire prevention viscoelastic damper of damping force comprise the first side steel plate 1, second side steel plate 2, with middle steel plate 3, viscoelasticity damping layer 4 and clamping device, wherein, the first side steel plate 1, second side steel plate 2 with rely on viscoelasticity damping layer 4 fastening bonding between middle steel plate 3.In further embodiment, the quantity of middle steel plate 3 is multiple, and the quantity of the first side steel plate 1 and the second side steel plate 2 is also multiple, make middle steel plate 3, first side steel plate 1 and the second side steel plate 2 suitable.Viscoelasticity damping layer 4 is made up of viscoelasticity damping material, and viscoelasticity damping material is a kind of special material being used as damping layer, and its principal character is relevant with temperature and frequency, frequency height to or temperature is low arrive certain degree time, it is glassy state, loses damping property; When low frequency or high temperature, it is rubbery state, and damping is also very little; Only when intermediate frequency and moderate temperature, damping is maximum, and elasticity gets medium value.First side steel plate 1 and the second side steel plate 2 step up by clamping device, and dynamics can be stepped up by regulating clamping device to regulate, thus can the damping force of damping adjusting device and equivalent damping ratio, the Applicable temperature scope of viscoelastic damper is broadened, makes energy-dissipating and shock-absorbing ability further be promoted simultaneously.
According to an embodiment of the invention, as shown in Figure 1, the adjustable fire prevention viscoelastic damper of damping force comprises further: the first fire proof heat-insulation layer 5-1 and the second fire proof heat-insulation layer 5-2, wherein, described first fire proof heat-insulation layer 5-1 wraps up described viscoelasticity damping layer 4, and described second fire proof heat-insulation layer 5-2 is arranged at the surface of described first side steel plate 1, described second side steel plate 2 and described middle steel plate 3.Thus make damper have fire-proof and thermal-insulation function, simultaneously can use to improve its safety in utilization in more wide temperature range.
According to an embodiment of the invention, the first side steel plate 1 is identical with width with the length of the second side steel plate 2, and the width of the first side steel plate 1 and the width of the second side steel plate 2 are greater than the width of middle steel plate 3.Width due to middle steel plate 3 is less than the width of the first side steel plate 1 and the width of the second side steel plate 2, thus make in embodiment below, bolt can pass the first side steel plate 1 and the second side steel plate 2, and do not contact with middle steel plate 3, viscoelasticity damping layer 4 and the first fire proof heat-insulation layer 5-1, the width of middle steel plate 6 is less than the width of the first side steel plate 1 and the width of the second side steel plate 2, think that viscoelasticity damping layer 4 and the first fire proof heat-insulation layer 5-1 provide certain space, ensure that viscoelastic damper has two-way energy dissipation capacity simultaneously.
According to an embodiment of the invention, the first fire proof heat-insulation layer 5-1 comprises fire resistant cloth and high-temperature heat insulation composite material, and wherein, described fire resistant cloth wraps described high-temperature heat insulation composite material.Thus ensure that the fire resistance of damper, ensure that the security performance that damper uses.
According to an embodiment of the invention, described fire resistant cloth is ceramic fiber cloth or high silica cloth.Ceramic fiber cloth has following characteristics: high temperature resistant, coefficient of thermal conductivity is low, anti-thermal shock, low heat capacity; Excellent high temperature insulation characteristic, long service life; There is good low temperature and elevated temperature strength; Nontoxic, harmless, environment is had no adverse effects.High silica cloth is a kind of high-temperature-resistant inorganic fibre, its silica (SiO
2) content is higher than 96%, softening point is close to 1700 DEG C, Long-Time Service at 900 DEG C, work under 1450 DEG C of conditions 10 minutes, work under 1600 DEG C of conditions and still remain intact state in 15 seconds, it is high that high silica refractory fiber cloth has intensity, easily processes, the feature that purposes is wide, as high temperature resistant, resistance to ablation, heat insulation, heat insulating material.
According to an embodiment of the invention, described high-temperature heat insulation composite material is silica and silicon titanium composite material.
According to an embodiment of the invention, described second fire proof heat-insulation layer 5-2 is fire-resistant coating for steel structure, is arranged at the surface of described first side steel plate 1, described second side steel plate 2 and described middle steel plate 6.Second fire proof heat-insulation layer effectively ensure that the fireproof performance of damper.Fire resistant coating is made up of fire-resistant coating for steel structure.Fire resistant coating ensures that steel work can not will lose supporting capacity again in high-temperature, very large deformation occurs, can not continue the problem that uses because of excessive deformation.
According to an embodiment of the invention, the soffit of the first side steel plate 1, the upper surface of the second side steel plate 2 and the upper and lower surface of middle steel plate 3 are plane or male and fomale(M&F).The soffit of the first side steel plate 1 be connected with viscoelasticity damping layer 4, the upper surface of the second side steel plate 2 can be plane, also can be male and fomale(M&F), preferably male and fomale(M&F), thus the upper surface of the first side steel plate 1, second side steel plate 2 and the contact area of viscoelasticity damping layer 4 are increased, make connection individual more firm.Same, the upper and lower surface of the middle steel plate 3 be connected with viscoelasticity damping layer 4 can be plane, also can be male and fomale(M&F), preferably male and fomale(M&F), thus middle steel plate 3 is increased with the contact area of viscoelasticity damping layer 4, makes connection individual more firm.
According to an embodiment of the invention, the thickness of the first fire proof heat-insulation layer is 20mm-60mm.The thickness of fire proof heat-insulation layer is selected within the scope of this, can ensure that damper has good fireproof performance, can ensure again not waste resource when fireproof performance is excellent.
According to an embodiment of the invention, the thickness of the second fire proof heat-insulation layer is 2mm-5mm.Can ensure that damper has good fireproof performance, can ensure again not waste resource when fireproof performance is excellent.
According to the multiple property of the first side steel plate 1 of the present invention, viscoelasticity damping layer 4, middle steel plate 3 and the second side steel plate 2 connected mode, below in conjunction with detailed description of the invention, the adjustable fire prevention viscoelastic damper of damping force of the present invention is made an explanation:
Embodiment 1
As shown in Figure 1, Figure 2 and Figure 3, the adjustable fire prevention viscoelastic damper of damping force comprises: the first side steel plate 1, second side steel plate 2, middle steel plate 3, viscoelasticity damping layer 4, first fire proof heat-insulation layer 5-1, the second fire proof heat-insulation layer 5-2, bolt 7 and nut 8, wherein, bolt 7 and nut 8 constitute the clamping device in the present embodiment, middle steel plate 3 quantity is one piece, and the first side steel plate 1 and the second side steel plate 2 connecting portion are equipped with bolt hole.First side steel plate 1 edge along its length both sides has the first chute 6-1 and the second chute 6-2, second side steel plate 2 is provided with the three chute 6-3 corresponding with the first chute 6-1 and the four chute 6-4 corresponding with the second chute 6-2 along its length, and bolt 7 can run through described first side steel plate 1 with described second side steel plate 2 by described first chute 6-1 and described 3rd chute 6-3, the second chute 6-2 and the 4th chute 6-4 and be connected with nut 8.Bolt 7 is connected with nut 8 with after described 3rd chute 6-3 through the first chute 6-1, thus make the upper end compact siro spinning technology of the first side steel plate 1 and described second side steel plate 2, bolt 7 number supporting with nut 8 is 3, it is to be appreciated that bolt 7 number supporting with nut 8 is at least 3; Bolt 7 is connected with nut 8 with after the 4th chute 6-4 through the second chute 6-2, thus make the lower end compact siro spinning technology of the first side steel plate 1 and described second side steel plate 2, bolt 7 number supporting with nut 8 is 3, it is to be appreciated that bolt 7 number supporting with nut 8 is at least 3.Bolt can be free to slide along chute, does not hinder damper that the shear strain of X to, Y-direction occurs.The distance that the width of the first side steel plate 1 and described second side steel plate 2 exceeds middle steel plate 3 is 80mm, and the first fire proof heat-insulation layer 5 thickness is 50mm, and the second fire-proof and thermal-insulation layer thickness is 3mm.
Further, the design that the present invention first side steel plate and described second side steel plate are clamped by screw bolt and nut, the shear strain of viscoelastic damper can be made not receive restriction, and by bolt and side steel plate, power is stepped up to viscoelasticity damping layer 4, by regulating the size of stepping up power under condition of different temperatures, the damping force of damping adjusting device and equivalent damping ratio, solve the damping change that viscoelasticity damping layer causes because of variations in temperature, widen the thermal adaptability scope of viscoelastic damper.In addition the present embodiment design can improve the energy consumption effect of damper.
Embodiment 2
As Fig. 4, shown in Fig. 5 and Fig. 6, the adjustable fire prevention viscoelastic damper of damping force comprises: the first side steel plate 1, second side steel plate 2, middle steel plate 3, viscoelasticity damping layer 4, first fire proof heat-insulation layer 5-1, second fire proof heat-insulation layer 5-2 and clamping device, clamping device comprises stiffening rib 9, second bolt 10 and the second nut 10-2, middle steel plate 3 quantity is one piece, first side steel plate 1, the surface of the second side steel plate 2 and middle steel plate 3 is plane, the width of the first side steel plate 1 and the second side steel plate 2 exceeds middle steel plate 3 and is of a size of 4-8mm, first side steel plate 1 and the second side steel plate 2 do not need to offer chute.First side steel plate 1 and the second side steel plate 2 external surface are provided with stiffening rib 9, and stiffening rib 9 is connected to each other by the second bolt 10 and the second nut 10-2.Described stiffening rib 9 is 6, symmetrical and be distributed in the external surface of described first side steel plate 1 and described second side steel plate 2, and described stiffening rib 9 two ends are provided with bolt hole, and to be connected two symmetrical stiffening ribs 9 with the second nut 10-2 with the second bolt 10.What need understanding is that the quantity of stiffening rib is at least 6.Can by the degree of tightness of adjusting bolt, the damping force of damping adjusting device and equivalent damping ratio.First fire proof heat-insulation layer 5-1 thickness is 60mm, and the second fire proof heat-insulation layer 5-2 thickness is 4mm.
The present invention is by arranging fire proof heat-insulation layer and fire resistant coating, ensure that the fire resistance of damper, step up power size by using the design in embodiment 1 or embodiment 2 to regulate simultaneously, damping adjusting device damping force at different temperatures and equivalent damping ratio, the Applicable temperature scope of viscoelastic damper is broadened, makes energy-dissipating and shock-absorbing ability further be promoted simultaneously.
The adjustable fire prevention viscoelastic damper of damping force of the present invention has fire-proof and thermal-insulation function, there is the viscoelastic damper of more high damping force and equivalent damping ratio, better energy-dissipating and shock-absorbing effect and two-way power consumption, can use to improve its safety in utilization in more wide temperature range simultaneously.
It should be noted that; in the present embodiment, the number of applications of middle steel plate and side steel plate is unrestricted; there is provided more high damping shock absorbing effect and the number of plies of viscoelasticity damping layer that arranges is unrestricted for meeting, use the form of laying of muscle of putting more energy into and quantity to fall into protection scope of the present invention.
It should be noted, the present invention will be described instead of limit the invention for above-described embodiment, and those skilled in the art can design alternative embodiment when not departing from the scope of claims.In the claims, any reference symbol between bracket should be configured to limitations on claims.Word " comprises " not to be got rid of existence and does not arrange element in the claims or step.Word "a" or "an" before being positioned at element is not got rid of and be there is multiple such element.In the unit claim listing some devices, several in these devices can be carry out imbody by same hardware branch.Word first, second and third-class use do not represent any order.Can be title by these word explanations.
Claims (10)
1. the adjustable fire prevention viscoelastic damper of damping force, it is characterized in that comprising: the first side steel plate (1), the second side steel plate (2), middle steel plate (3), viscoelasticity damping layer (4) and clamping device, wherein
Described first side steel plate (1), described second side steel plate (2) with rely on described viscoelasticity damping layer (4) fastening bonding between described middle steel plate (3);
Described first side steel plate (1) and described second side steel plate (2) step up by described clamping device, and can regulate the dynamics of stepping up.
2. the adjustable fire prevention viscoelastic damper of damping force according to claim 1, it is characterized in that comprising further: the first fire proof heat-insulation layer (5-1) and the second fire proof heat-insulation layer (5-2), wherein, described first fire proof heat-insulation layer (5-1) wraps up described viscoelasticity damping layer (4), and described second fire proof heat-insulation layer (5-2) is arranged at the surface of described first side steel plate (1), described second side steel plate (2) and described middle steel plate (3).
3. the adjustable fire prevention viscoelastic damper of damping force according to claim 1, it is characterized in that: described first side steel plate (1) is identical with width with the length of described second side steel plate (2), the width of described first side steel plate (1) and described second side steel plate (2) is greater than the width of described middle steel plate (3).
4. according to the arbitrary described adjustable fire prevention viscoelastic damper of damping force of claim 1-3, it is characterized in that: described clamping device comprises bolt (7) and nut (8), wherein, described first side steel plate (1) is provided with the first chute (6-1) and the second chute (6-2) along its length, described second side steel plate (2) is provided with three chute (6-3) corresponding with the first chute (6-1) and four chute (6-4) corresponding with the second chute (6-2) along its length, bolt (7) is by described first chute (6-1) and described 3rd chute (6-3), second chute (6-2) and the 4th chute (6-4) can run through described first side steel plate (1) with described second side steel plate (2) and be connected with nut (8).
5. the adjustable fire prevention viscoelastic damper of damping force according to claim 1, it is characterized in that: described clamping device comprises stiffening rib (9), the second bolt (10) and the second nut (10-2), wherein, described first side steel plate (1) and described second side steel plate (2) external surface are provided with stiffening rib (9), and described stiffening rib (9) is connected to each other by the second bolt (10) and the second nut (10-2).
6. the adjustable fire prevention viscoelastic damper of damping force according to claim 2, it is characterized in that: described first fire proof heat-insulation layer (5-1) comprises fire resistant cloth and high-temperature heat insulation composite material, wherein, described fire resistant cloth wraps described high-temperature heat insulation composite material.
7. the adjustable fire prevention viscoelastic damper of damping force according to claim 6, is characterized in that: described fire resistant cloth is ceramic fiber cloth or high silica cloth.
8. the adjustable fire prevention viscoelastic damper of damping force according to claim 5, is characterized in that: described second fire proof heat-insulation layer is fire-resistant coating for steel structure.
9. the adjustable fire prevention viscoelastic damper of damping force according to claim 4, it is characterized in that: described stiffening rib (9) is at least 6, symmetrical and be distributed in the external surface of described first side steel plate (1) and described second side steel plate (2), described stiffening rib (9) two ends are provided with bolt hole, and to be connected two symmetrical stiffening ribs (9) with the second nut (10-2) with the second bolt (10).
10. the adjustable fire prevention viscoelastic damper of damping force according to claim 2, it is characterized in that: the thickness of described first fire proof heat-insulation layer (5-1) is 20mm-60mm, the thickness of described second fire proof heat-insulation layer (5-2) is 2 ~ 5mm.
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| CN201610108539.8A CN105525698A (en) | 2016-02-26 | 2016-02-26 | Damping force adjustable fireproof viscoelastic damper |
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| CN201610108539.8A CN105525698A (en) | 2016-02-26 | 2016-02-26 | Damping force adjustable fireproof viscoelastic damper |
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| CN106013918A (en) * | 2016-07-01 | 2016-10-12 | 上海赛弗工程减震技术有限公司 | Coupling beam type metal damper for structural seismic resistance |
| CN108204163A (en) * | 2018-03-02 | 2018-06-26 | 上海堃熠工程减震科技有限公司 | The compound lead damper of active adding pressure type extrusion friction |
| CN109024965A (en) * | 2018-09-20 | 2018-12-18 | 辽宁科技大学 | A kind of mild steel damper |
| CN114277953A (en) * | 2022-01-14 | 2022-04-05 | 南京林业大学 | Viscoelastic damper with adjustable pre-stress |
| CN115126323A (en) * | 2022-07-29 | 2022-09-30 | 西安建筑科技大学 | Fully-assembled viscoelastic-shape memory alloy damper and damping method thereof |
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| CN109024965A (en) * | 2018-09-20 | 2018-12-18 | 辽宁科技大学 | A kind of mild steel damper |
| CN109024965B (en) * | 2018-09-20 | 2023-10-03 | 辽宁科技大学 | Soft steel damper |
| CN114277953A (en) * | 2022-01-14 | 2022-04-05 | 南京林业大学 | Viscoelastic damper with adjustable pre-stress |
| CN115126323A (en) * | 2022-07-29 | 2022-09-30 | 西安建筑科技大学 | Fully-assembled viscoelastic-shape memory alloy damper and damping method thereof |
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