CN109458030B - Hydraulic transmission self-resetting supporting device - Google Patents
Hydraulic transmission self-resetting supporting device Download PDFInfo
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- CN109458030B CN109458030B CN201811401564.0A CN201811401564A CN109458030B CN 109458030 B CN109458030 B CN 109458030B CN 201811401564 A CN201811401564 A CN 201811401564A CN 109458030 B CN109458030 B CN 109458030B
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 11
- 239000003921 oil Substances 0.000 claims abstract description 36
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 15
- 210000002435 tendon Anatomy 0.000 claims abstract description 15
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 238000004873 anchoring Methods 0.000 claims description 24
- 230000007547 defect Effects 0.000 abstract description 5
- 238000006073 displacement reaction Methods 0.000 description 21
- 230000033001 locomotion Effects 0.000 description 6
- 238000013016 damping Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- E04H9/0235—Anti-seismic devices with hydraulic or pneumatic damping
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention relates to a hydraulic transmission self-resetting supporting device, which comprises: the hydraulic oil system comprises an oil cylinder, a piston rod, a first piston, a second piston, a third piston, hydraulic oil, a first anchor plate, a second anchor plate and a prestressed rib; the first piston, the second piston and the third piston are sequentially arranged in the oil cylinder, the piston rod is arranged on the central shaft of the oil cylinder, the second piston is fixedly connected to the piston rod, and the first piston and the third piston are movably arranged on the piston rod in a penetrating manner; the first anchor plate and the second anchor plate are connected through the prestressed tendons; hydraulic oil is arranged in the oil cylinder between the first piston and the third piston. According to the hydraulic transmission self-resetting support device, the pistons with different effective surface areas are arranged, and the deformation capacity of the self-resetting support is scaled by the device under the condition that the deformation capacity of the prestressed tendons is certain by utilizing a hydraulic principle, so that the defect that the deformation capacity of the prestressed tendons cannot meet the earthquake-resistant requirement of civil engineering is overcome.
Description
Technical Field
The invention relates to the field of civil engineering energy consumption and shock absorption equipment, in particular to a hydraulic transmission self-resetting supporting device.
Background
It is self-evident that the energy and hazards of the earthquake are still not precisely predictable, and thus it is desirable to minimize the loss of the earthquake by all means, one way of which is to develop a seismic isolation technique in which a common device is a self-resetting device.
The existing self-resetting device has more defects, and is difficult to meet the actual engineering application: the self-resetting device using the shape memory alloy wire as the resetting material has the advantages of high manufacturing cost, unstable mechanical property and larger fluctuation along with temperature change; the prestressed steel strand self-resetting device has the defect of insufficient deformability; the disc spring self-resetting device is difficult to load and has a complex structure; the FRP rib is difficult to stretch and anchor from the resetting device, and the deformability is insufficient.
Therefore, the self-resetting energy consumption device with strong deformation capability, low manufacturing cost, relatively simple manufacture and stable performance is researched and is an urgent problem to be solved in practical engineering application.
Disclosure of Invention
Based on this, it is necessary to provide a hydraulic drive self-resetting support device in view of at least one of the problems mentioned above.
A hydraulically driven self-resetting support device comprising: the hydraulic oil system comprises an oil cylinder, a piston rod, a first piston, a second piston, a third piston, hydraulic oil, a first anchor plate, a second anchor plate and a prestressed rib; the first piston, the second piston and the third piston are respectively provided with a piston rod penetrating hole, the first piston, the second piston and the third piston are sequentially arranged in the oil cylinder, the piston rods are arranged on the central shaft of the oil cylinder, the second piston is fixedly connected to the piston rods, and the first piston is movably arranged on the piston rods in a penetrating mode; the first anchoring plate and the second anchoring plate are respectively arranged near two end surfaces of the oil cylinder, and are connected through the prestress rib; hydraulic oil is arranged in the oil cylinder between the first piston and the third piston, the first piston can be abutted against the first anchoring plate, and the third piston can be abutted against the second anchoring plate; the first anchor plate is provided with a through hole, the through hole can be used for the piston rod to pass through, and one end of the piston rod extends to the outer side of the first anchor plate.
In one embodiment, the end face of the second piston facing the first piston is defined as a left end face, the effective area is a 2a, the end face of the second piston facing the third piston is defined as a right end face, and the effective area is a 2b; defining the effective area of the first piston as A 1 and the effective area A 3 of the third piston; the following ratio, A 2a/A1＝A2b/A3, exists.
In one embodiment, the piston rod extends to the vicinity of the second anchor plate, and the third piston is movably disposed through the piston rod.
Further, a piston rod diameter D 1 between the first piston and the second piston is defined, a piston rod diameter D 2;D1/D2 =λ between the second piston and the third piston is defined, and λ is a preset fixed constant.
In one embodiment, the second anchoring plate is provided with a through hole, and the other end of the push-pull rod extends to the outer side of the second anchoring plate.
In one embodiment, an orifice plate is further arranged in the oil cylinder, and a plurality of through holes with preset areas are formed in the orifice plate.
In one embodiment, a throttle plate is further arranged in the oil cylinder, the throttle plate is fixedly arranged in the oil cylinder, a central round hole is formed in the throttle plate, and the diameter of the central round hole is larger than that of the piston rod.
In one embodiment, a top column is arranged on the end face of the first piston facing the first anchoring plate; and a jacking column is arranged on the end face of the third piston, which faces the second anchoring plate.
In one embodiment, the tendon is connected to the first and second anchor plates by anchors, respectively.
In one embodiment, the hydraulic self-resetting support device further comprises a connecting bracket, wherein one end of the connecting bracket is arranged on the outer surface of the oil cylinder near the second anchoring plate.
According to the hydraulic transmission self-resetting support device, the pistons with different effective surface areas are arranged, and the deformation capacity of the self-resetting support is scaled by the device under the condition that the deformation capacity of the prestressed tendons is certain by utilizing a hydraulic principle, so that the defect that the deformation capacity of the prestressed tendons cannot meet the earthquake-resistant requirement of civil engineering is overcome.
Drawings
FIG. 1 is a schematic view of a hydraulic self-resetting support device according to an embodiment of the invention;
FIG. 2 is a schematic view of a hydraulic self-resetting support device according to another embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating the operation structure of a hydraulic self-resetting support device according to another embodiment of the present invention;
FIG. 4 is a schematic view of another embodiment of a hydraulic self-resetting support device;
fig. 5 is a schematic structural view of a hydraulic self-resetting support device according to another embodiment of the invention.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
In one embodiment of the present invention, as shown in fig. 1, there is provided a hydraulic self-resetting support device, at least including: the cylinder 100, the piston rod 300, the first piston 210, the second piston 220, the third piston 230, hydraulic oil, the first anchor plate 410, the second anchor plate 420, and the tendon 500 may have other fasteners, seals, etc. that are not mentioned but are commonly used in the art. Wherein the first piston 210, the second piston 220 and the third piston 230 are sequentially disposed in the cylinder 100, and the piston rod 300 is disposed on the central axis of the cylinder 100, and the second piston 220 is fixedly connected to the piston rod 300, i.e., the second piston 220 is integrally connected to the piston rod 300, and is relatively stationary in motion. The first piston 210 is movably disposed through the piston rod 300, i.e., the first piston 210 is capable of moving on the piston rod 300. The first anchor plate 410 and the second anchor plate 420 are respectively arranged near two end surfaces of the oil cylinder 100, the anchor plates are not directly connected with the oil cylinder 100, the first anchor plate 410 and the second anchor plate 420 are connected through the prestress rib 500, namely, the prestress rib 500 connects the two anchor plates into a whole and has a certain initial tensile stress thereon, the first piston 210 or the third piston 230 acts on the anchor plates to transmit force to the prestress rib 500, and the prestress rib 500 is preferably connected with the first anchor plate 410 and the second anchor plate 420 through anchors respectively. The hydraulic oil is provided in the cylinder 100 between the first piston 210 and the third piston 230, and it is known to those skilled in the art that sealing measures should be taken to ensure that the hydraulic oil is maintained at a predetermined spatial position, and sealing means are provided at each set of joints, i.e. sealing rings are provided between the first piston 210 and the piston rod 300, and even between the third piston 230 and the piston rod 300. The first piston 210 may be abutted against the first anchor plate 410, and the third piston 230 may be abutted against the second anchor plate 420, which may be achieved by setting the thickness of the piston, or may be a convex structure on the surface of the piston, preferably, the end surface of the first piston 210 facing the first anchor plate 410 is provided with a first top post 211, the end surface of the third piston 230 facing the second anchor plate 420 is provided with a second top post 231, and the first anchor plate 410 or the second anchor plate 420 is pushed by the first top post 211 or the second top post 231. The first anchorage plate 410 is provided with a through hole 421, the through hole 421 allows the piston rod 300 to pass therethrough, and one end of the piston rod 300 is extended to the outside of the first anchorage plate 410. The piston rod 300 is not only used for transmitting external push-pull force to the hydraulic transmission self-resetting supporting device, but also can enable the anchoring plate and the prestressed tendons 500 to be hung on the oil cylinder 100.
In another embodiment, as shown in fig. 2, the piston rod 300 can extend to the vicinity of the second anchor plate 420, and the third piston 230 is movably disposed on the piston rod 300.
As a preferable solution, the end surface of the second piston 220 facing the first piston 210 is defined as a left end surface, the effective area is a 2a, the end surface of the second piston 220 facing the third piston 230 is a right end surface, and the effective area is a 2b; defining an effective area of the first piston 210 as a 1, and an effective area a 3 of the third piston 230; the effective areas of the first piston 210, the second piston 220, and the third piston 230 accumulate in the following proportional relationship, a 2a/A1＝A2b/A3, where the effective area is the area of the end circular surface of the piston minus the area of the piston rod, and is the area of the end circular ring of the piston. As shown in fig. 3 and 4, it is assumed that S is a displacement of the piston rod 300 with respect to the cylinder 100, S 1 is a displacement of the first piston 210 with respect to the cylinder 100, S 2 is a displacement of the second piston 220 with respect to the cylinder 100, and S 3 is a displacement of the third piston 230 with respect to the cylinder 100. Defining an area scaling factorAssuming that the liquid volume is incompressible
A2a×S2＝A1×S1
A2b×S2＝A3×S3
S2＝S
Defining a displacement scaling factor for the first piston 210Displacement scaling factor/>, of the third piston 230Then
It can be seen that β 1＝β3 =η, i.e. the magnitude of the displacement scaling factor of the present device is equal to the piston area ratio.
The above mathematical relationship proves that the displacement scaling equal proportion relationship under the pulling and pressing working condition, the piston rod 300 is out of the cylinder relative to the cylinder 100, and the displacement of the first piston 210 is proportional to the displacement of the piston rod 300; the piston rod 300 is contracted relative to the cylinder 100, the displacement of the third piston 230 is proportional to the displacement of the piston rod 300, and the proportional coefficients of the two displacements are equal to the proportional coefficient of the piston area. Namely, the displacement scaling ratio of the two ends of the support is the same under the working conditions of compression and extension, and the scaling coefficient can be 0.25-0.5. The prestressed tendons 500 are tensioned and anchored at the two anchoring ends of the first anchoring plate 410 and the second anchoring plate 420, the first anchoring plate 410 is abutted with the oil cylinder 100 and/or the first piston 210, the second anchoring plate 420 is abutted with the oil cylinder 100 and/or the third piston 230, the deformation of the prestressed tendons 500 is related to the cylinder displacement of the first piston 210 or the third piston 230, and under the condition that the deformation capacity of the prestressed tendons 500 is certain, the deformation capacity of the self-resetting support (namely the displacement stroke of the piston rod 300 of the self-resetting device) is amplified by the device, so that the defect that the deformation capacity of the prestressed tendons 500 cannot meet the anti-seismic requirements of civil engineering is overcome. Taking 1860-level prestressed steel strand self-resetting device as an example, the ultimate elongation of 1860-level prestressed steel strand is only about 1%, the pre-tensioning and applying prestress can use about 0.3% elongation, the residual effective deformability is only 0.7% of the length of the prestressed reinforcement 500, the requirement of the civil engineering building structure anti-seismic field on the axial expansion rate of the self-resetting support is not met, when the method is adopted, the axial expansion rate of the piston rod 300 of the 1860-level prestressed steel strand self-resetting device can be expanded to 2.1% by taking the displacement scaling coefficient of the first piston 210 and the third piston 230 relative to the piston rod 300 to be 1/3, and the requirement of the building structure anti-seismic is fully met.
Further preferably, the diameter of the piston rod 300 between the first piston 210 and the second piston 220 is defined as D 1, the diameter of the piston rod 300 between the second piston 220 and the third piston 230 is defined as D 2;D1/D2 = λ, λ is a preset fixed constant. The cylinder 100 in which the second piston 220 operates is generally of a smaller inner diameter, although a larger inner diameter may be used as required, and the cross-sectional area of the piston rod 300 is changed by changing the diameter of the piston rod 300 in different areas, thereby changing the effective areas of the first piston 210 and the second piston 220.
As a preferred solution, as shown in fig. 5, an orifice plate 600 is further disposed in the cylinder 100, and a plurality of through holes having a preset area are formed in the orifice plate 600 to allow hydraulic oil to pass through. The throttle plate is fixedly connected in the oil cylinder and can not obstruct the movement of the piston rod, and when the piston rod passes through, the throttle plate and the piston rod need to be sealed. The inner cavity of the oil cylinder 100 between the first piston 210 and the second piston 220 is set as a first oil cavity, the inner cavity between the second piston 220 and the third piston 230 is set as a second oil cavity, the throttle orifice 600 of the throttle orifice is respectively arranged in the first oil cavity and the second oil cavity, and when the piston rod 300 stretches, the second piston 220 forces hydraulic oil to quickly pass through the throttle orifice to generate viscous damping force, consume externally input energy and convert mechanical energy into internal energy. The principle formula is as follows: f d＝CVα, wherein: f d is damping force (kN), C is damping coefficient (kN/(mm/s)), V is velocity (mm/s) of piston movement, alpha is velocity index, design selection is carried out according to engineering requirements, and the value is generally between 0.01 and 1. When α=1, then linear damping is provided. The main function of the hydraulic device is to scale displacement, under the condition that the deformation capacity of the prestressed tendons 500 is limited, the deformation capacity of the self-resetting support is improved, the throttle orifice 600 is added into the oil cylinder 100, and the hydraulic device can be expanded into a viscous damper. The support is installed in the civil engineering structure, which can provide a restoring force for the structure and can consume the energy input to the civil engineering structure by the earthquake. In another possible scheme, a throttle plate is arranged in the oil cylinder, the throttle plate is fixedly arranged at a certain position of the oil cylinder, the throttle plate does not need to be provided with a throttle hole like the throttle plate, the diameter of a central round hole for a piston rod to pass through is only required to be set larger than that of a piston rod, a certain gap is reserved between the piston rod and the central round hole of the throttle plate, and the same effect as the throttle hole is achieved through the gap.
Preferably, the second anchor plate 420 is also provided with a through hole, and one end of the piston rod 300 extends to the outside of the first anchor plate 410, and the other end extends to the outside of the second anchor plate 420. Structural attachment sites may be provided on both sides.
In one preferred embodiment, the hydraulic self-resetting support device further comprises a connecting bracket 700, and one end of the connecting bracket 700 is arranged on the outer surface of the oil cylinder 100 near the second anchor plate 420.
Preferably, the initial tension pretension and the number of the pretension 500 are set according to the device and the restoring force of the structure.
In one preferred embodiment, the first piston 210 and the third piston 230 may be connected by a connecting rod outside the cylinder, maintaining synchronous motion.
Preferably, a hydraulic transmission self-resetting supporting device with a throttle plate expanded into an additional viscous energy consumption function is arranged, hydraulic oil with a certain motion viscosity coefficient is required to be selected, and the size of the motion viscosity coefficient is required to meet the design requirement of a damping coefficient.
According to the hydraulic transmission self-resetting supporting device provided by the technical scheme, the piston positive pressure area ratio is adopted to control the displacement scaling, and under the condition that the deformation capacity of the prestressed tendons is certain, the axial displacement supporting capacity is amplified, so that the earthquake-resistant displacement stroke requirement of the civil engineering building structure is well met.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (6)
1. A hydraulic drive self-resetting support device, comprising: the hydraulic oil system comprises an oil cylinder, a piston rod, a first piston, a second piston, a third piston, hydraulic oil, a first anchor plate, a second anchor plate and a prestressed rib; the first piston, the second piston and the third piston are sequentially arranged in the oil cylinder, the piston rod is arranged on the central shaft of the oil cylinder, the second piston is fixedly connected to the piston rod, and the first piston is movably arranged on the piston rod in a penetrating manner; the first anchoring plate and the second anchoring plate are respectively arranged near two end surfaces of the oil cylinder, and are connected through the prestress rib; hydraulic oil is arranged in the oil cylinder between the first piston and the third piston, the first piston is abutted against the first anchoring plate, and the third piston is abutted against the second anchoring plate; the first anchor plate is provided with a through hole, the through hole is used for the piston rod to pass through, and one end of the piston rod extends to the outer side of the first anchor plate;
Defining the end face, facing the first piston, of the second piston as a left end face, the effective area of the end face is A 2a, the end face, facing the third piston, of the second piston as a right end face, and the effective area of the end face is A 2b; defining the effective area of the first piston as A 1 and the effective area A 3. of the third piston; there is a proportional relationship as follows, ；
The piston rod extends to the vicinity of the second anchoring plate, and the third piston is movably arranged on the piston rod in a penetrating manner;
the second anchoring plate is provided with a through hole, and the other end of the piston rod extends to the outer side of the second anchoring plate;
A jacking column is arranged on the end face of the first piston, which faces the first anchoring plate; and a jacking column is arranged on the end face of the third piston, which faces the second anchoring plate.
2. The hydraulic self-resetting support device as recited in claim 1, wherein a piston rod diameter D 1 between the first and second pistons is defined, and a piston rod diameter D 2;D1/D2 = λ between the second and third pistons is defined, λ being a preset fixed constant.
3. The hydraulic transmission self-resetting support device as claimed in claim 1, wherein an orifice plate is further arranged in the oil cylinder, and a plurality of through holes with preset areas are formed in the orifice plate.
4. The hydraulic transmission self-resetting support device as claimed in claim 1, wherein a throttle plate is further arranged in the oil cylinder, the throttle plate is fixedly arranged in the oil cylinder, a central round hole is formed in the throttle plate, and the diameter of the central round hole is larger than that of the piston rod.
5. The hydraulic self-resetting support device as recited in claim 1, wherein the tendon is connected to the first and second anchor plates by anchors, respectively.
6. The hydraulic self-resetting support device as recited in claim 1, further comprising a connecting bracket having one end disposed on an outer surface of the cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811401564.0A CN109458030B (en) | 2018-11-22 | 2018-11-22 | Hydraulic transmission self-resetting supporting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811401564.0A CN109458030B (en) | 2018-11-22 | 2018-11-22 | Hydraulic transmission self-resetting supporting device |
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| CN109458030A CN109458030A (en) | 2019-03-12 |
| CN109458030B true CN109458030B (en) | 2024-06-25 |
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| CN201811401564.0A Active CN109458030B (en) | 2018-11-22 | 2018-11-22 | Hydraulic transmission self-resetting supporting device |
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| CN111189599A (en) * | 2020-01-09 | 2020-05-22 | 中国人民解放军63921部队 | Sliding shock insulation and absorption vibration table model test system capable of being reset quickly and test method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101994353A (en) * | 2010-11-24 | 2011-03-30 | 沈阳建筑大学 | Self resetting shape memory alloy (SMA) viscous damper |
| CN108644288A (en) * | 2018-06-06 | 2018-10-12 | 河海大学 | A kind of Effects of Viscous Fluid Damper of damping automatic adjustment |
| CN209369453U (en) * | 2018-11-22 | 2019-09-10 | 武汉理工大学 | Hydraulic drive Self-resetting support device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243834B (en) * | 2013-05-25 | 2015-02-18 | 吕西林 | Self-resetting support |
| JP6567267B2 (en) * | 2014-10-31 | 2019-08-28 | 千博産業株式会社 | Structure damping device |
| CN204385944U (en) * | 2015-01-05 | 2015-06-10 | 昆明天矫力加固技术工程有限公司 | A kind of damping device of civil engineering structure |
| CN104696310B (en) * | 2015-04-01 | 2017-03-22 | 徐州重型机械有限公司 | Composite hydraulic cylinder device |
| CN105421610B (en) * | 2015-11-18 | 2018-01-02 | 同济大学 | Self-resetting mild steel energy dissipation support |
| CN108457168B (en) * | 2018-01-15 | 2019-11-12 | 东南大学 | A kind of self-centering Effects of Viscous Fluid Damper |
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2018
- 2018-11-22 CN CN201811401564.0A patent/CN109458030B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101994353A (en) * | 2010-11-24 | 2011-03-30 | 沈阳建筑大学 | Self resetting shape memory alloy (SMA) viscous damper |
| CN108644288A (en) * | 2018-06-06 | 2018-10-12 | 河海大学 | A kind of Effects of Viscous Fluid Damper of damping automatic adjustment |
| CN209369453U (en) * | 2018-11-22 | 2019-09-10 | 武汉理工大学 | Hydraulic drive Self-resetting support device |
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