CN107574946B - Bidirectional large-displacement variable-damping metal damping device - Google Patents
Bidirectional large-displacement variable-damping metal damping device Download PDFInfo
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- CN107574946B CN107574946B CN201710936198.8A CN201710936198A CN107574946B CN 107574946 B CN107574946 B CN 107574946B CN 201710936198 A CN201710936198 A CN 201710936198A CN 107574946 B CN107574946 B CN 107574946B
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- channel barrel
- metal damper
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- 238000013016 damping Methods 0.000 title claims abstract description 95
- 239000002184 metal Substances 0.000 title claims abstract description 93
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 35
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 23
- 230000035939 shock Effects 0.000 claims abstract description 30
- 238000009413 insulation Methods 0.000 claims abstract description 24
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 15
- 238000005265 energy consumption Methods 0.000 abstract description 12
- 230000002452 interceptive effect Effects 0.000 abstract 1
- 238000002955 isolation Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000010008 shearing Methods 0.000 description 1
Abstract
The invention provides a bidirectional large-displacement damping-variable metal damping device, which comprises a first sliding mechanism, a second sliding mechanism and a middle pin, wherein in a small earthquake stage, an upper metal damper and a lower metal damper do not provide damping action through the sliding of the first sliding mechanism and/or the second sliding mechanism, and the damping action is not prevented from interfering a shock-insulation rubber support, so that a good damping effect is formed; in the large earthquake stage, the first locking mechanism and the second locking mechanism can be used for locking, at the moment, the upper metal damper and the lower metal damper deform, hysteresis energy consumption is generated, energy is consumed, and the damping device and the shock insulation support in the shock insulation layer jointly absorb shock.
Description
Technical Field
The invention relates to the field of constructional engineering, in particular to a bidirectional large-displacement damping-variable metal damping device.
Background
Using in the shock-insulating layer a rubber shock-insulation support seat, can play a good role in reducing earthquake. According to the Chinese seismic isolation design specification, the damping effect is determined by comparing the shear force ratio or bending moment ratio of the seismic isolation structure and the non-seismic isolation structure in the middle seismic stage, and the displacement of the seismic isolation layer is mainly controlled in the large seismic stage. The main effect of the middle earthquake stage on reducing the shearing force ratio or the bending moment ratio is that the rigidity of the shock insulation layer is smaller, the ratio is smaller, the metal damper has certain energy consumption effect, and the displacement is smaller at the moment, so that the energy consumption effect is limited, and the rigidity of the shock insulation layer can be properly increased, so that the whole shock absorption effect is reduced.
Disclosure of Invention
Aiming at the problem of limited energy consumption of the metal damper in the prior art, the invention provides a bidirectional large-displacement damping-variable metal damping device, which does not influence the rigidity of a shock insulation layer in small shock and fully plays a damping energy consumption effect in large shock.
A bidirectional large-displacement variable damping metal damping device comprises a first sliding mechanism, a second sliding mechanism and a middle pin;
the first slide mechanism comprises an upper channel barrel and at least one upper metal damper;
the second skid comprises a lower channel barrel and at least one lower metal damper;
the upper channel barrel is provided with a first locking mechanism, and the lower channel barrel is provided with a second locking mechanism;
the upper part of the upper metal damper is connected with the upper part of the shock insulation layer, and the lower part of the upper metal damper is connected with the upper channel barrel;
the upper part of the middle pin is embedded into the upper channel barrel, can slide in a first preset distance range and can be locked by a first locking mechanism;
the lower part of the middle pin is embedded into the lower channel barrel, can slide in a second preset distance range and can be locked by a second locking mechanism;
the lower operating channel barrel is also connected with the upper part of the lower metal damper, and the lower part of the lower metal damper is connected with the lower part of the shock insulation layer;
the projections of the first sliding mechanism and the second sliding mechanism on the horizontal plane are perpendicular to each other.
Further, the upper metal damper comprises a first upper connecting plate, a plurality of first damping plates and a first lower connecting plate; the plurality of first damping plates are supported between the first upper connecting plate and the first lower connecting plate, and the first upper connecting plate is connected with the upper part of the shock insulation layer.
Further, the upper channel barrel comprises a first square body, a first groove is formed on the lower surface of the first square body in an opening mode, and the upper portion of the middle pin column is embedded into the first groove to realize sliding connection with the upper channel barrel;
the first lower connecting plate is connected with the upper surface of the first square body.
Further, the side walls of the first grooves along the length direction are respectively provided with a second groove, the upper parts of the middle pin columns are provided with first convex grooves matched with the second grooves, and the first convex grooves are embedded into the second grooves, so that the middle pin columns and the upper channel barrel can slide along the length direction.
Further, the first locking mechanism comprises a first unidirectional sliding control wedge and a first manual switch for controlling the first unidirectional sliding control wedge;
and a pair of first unidirectional sliding control wedges are arranged on each second groove, a first preset distance is reserved between the pair of first unidirectional sliding control wedges, and the distance between the first unidirectional sliding control wedges and the inner walls of the first grooves along the width direction is equal to the length of the middle pin.
Further, the lower channel barrel comprises a second square body, a third groove is formed in the opening of the upper surface of the second square body, and the lower part of the middle pin post is embedded into the third groove to realize sliding connection with the lower channel barrel.
Further, the side walls of the third groove along the length direction are respectively provided with a fourth groove, the lower part of the middle pin is provided with a second convex groove matched with the fourth groove, and the second convex groove is embedded into the fourth groove, so that the middle pin and the lower channel barrel can slide along the length direction.
Further, the second locking mechanism comprises a second unidirectional sliding control wedge and a second manual switch for controlling the second unidirectional sliding control wedge;
and a pair of second unidirectional sliding control wedges are arranged on each fourth groove, a second preset distance is arranged between the pair of second unidirectional sliding control wedges, and the distance between the second unidirectional sliding control wedges and the inner walls of the second grooves along the width direction is equal to the length of the middle pin.
Further, the lower metal damper comprises a second upper connecting plate, a plurality of second damping plates and a second lower connecting plate, wherein the second damping plates are supported between the second upper connecting plate and the second lower connecting plate, the second upper connecting plate is connected with the lower surface of the second square body, and the second lower connecting plate is connected with the lower part of the shock insulation layer.
Further, the first damping plate and/or the second damping plate are porous soft steel damping plates or parabolic soft steel damping plates.
The invention provides a bidirectional large-displacement variable damping metal damping device, which at least comprises the following beneficial effects:
(1) In the small earthquake stage, the upper metal damper and the lower metal damper do not provide damping action through the sliding of the first sliding mechanism and/or the second sliding mechanism, so that the shock insulation rubber support is not hindered, and a good shock absorption effect is formed; in the large earthquake stage, the first locking mechanism and the second locking mechanism can be used for locking, at the moment, the upper metal damper and the lower metal damper deform to generate hysteresis energy consumption and consume energy, and the hysteresis energy consumption and the energy consumption are jointly absorbed by the vibration isolation support in the vibration isolation layer;
(2) The projections of the first sliding mechanism and the second sliding mechanism on the horizontal plane are mutually perpendicular, so that the metal damping device provides bidirectional motion damping when any angle displacement occurs in the large earthquake stage, and the requirements of bidirectional large displacement and large damping of the earthquake isolation layer are met;
(3) When the earthquake is over, the middle pin column can return to the initial state through the first manual switch and/or the second manual switch, so that the metal damping device can be reused;
(4) The upper metal damper and the lower metal damper can be replaced after being damaged, and the maintenance is easy.
Drawings
FIG. 1 is a schematic diagram of an embodiment of a bidirectional large displacement variable damping metal damping device according to the present invention.
Fig. 2 is a schematic structural diagram of an embodiment of an upper metal damper in a bidirectional large-displacement variable-damping metal damping device provided by the invention.
Fig. 3 is a schematic structural diagram of an embodiment of an upper channel barrel in a bidirectional large-displacement variable-damping metal damping device provided by the invention.
Fig. 4 is a schematic structural diagram of an embodiment of an intermediate pin in a bidirectional large-displacement variable damping metal damping device provided by the invention.
Fig. 5 is a schematic structural diagram of an embodiment of a lower channel barrel in a bidirectional large-displacement variable damping metal damping device provided by the invention.
Fig. 6 is a schematic structural diagram of an embodiment of a lower metal damper in a bidirectional large-displacement variable-damping metal damping device provided by the invention.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and more specific, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1, the present embodiment provides a bidirectional large displacement variable damping metal damping device, which includes a first sliding mechanism 101, a second sliding mechanism 102 and an intermediate pin 103;
the first skid 101 includes an upper channel barrel 1011 and at least one upper metal damper 1012;
the second skid 102 includes a lower channel barrel 1021 and at least one lower metal damper 1022;
the upper channel barrel 1011 is provided with a first locking mechanism, and the lower channel barrel 1021 is provided with a second locking mechanism;
the upper part of the upper metal damper 1012 is connected with the upper part of the shock insulation layer, and the lower part of the upper metal damper 1012 is connected with the upper channel barrel 1011;
the upper part of the middle pin 103 is embedded into the upper channel barrel 1011 and can slide within a first preset distance range, and can be locked by a first locking mechanism;
the lower part of the middle pin 103 is embedded into the lower channel barrel 1021 and can slide within a second preset distance range, and can be locked by a second locking mechanism;
the lower operation barrel 1021 is also connected with the upper part of the lower metal damper 1022, and the lower part of the lower metal damper 1022 is connected with the lower part of the shock insulation layer;
the projections of the first and second skids 101, 102 on the horizontal plane are perpendicular to each other.
The bidirectional large-displacement variable damping metal damping device provided by the embodiment can realize the damping effect by sliding the first sliding mechanism and/or the second sliding mechanism in the small earthquake stage, the upper metal damper and the lower metal damper do not provide damping effect, do not obstruct the shock insulation rubber support, and form a good shock absorption effect; in the large earthquake stage, the first locking mechanism and the second locking mechanism can be used for locking, at the moment, the upper metal damper and the lower metal damper deform, hysteresis energy consumption is generated, energy is consumed, and the damping device and the shock insulation support in the shock insulation layer jointly absorb shock.
In addition, the projections of the first sliding mechanism and the second sliding mechanism on the horizontal plane are mutually perpendicular, so that the metal damping device provides bidirectional motion damping when any angle displacement occurs in the large earthquake stage.
Further, referring to fig. 2, the upper metal damper 1012 includes a first upper connection plate 1013, a plurality of first damping plates 1014, and a first lower connection plate 1015; a plurality of first damping plates 1014 are supported between the first upper connection plates 1013 and the first lower connection plates 1014, and the first upper connection plates 1013 are connected to the upper portion of the shock insulation layer.
As a preferred embodiment, the number of upper metal dampers is two.
Further, referring to fig. 3 and 4, the upper channel barrel 1011 includes a first square body 1016, a lower surface of the first square body 1016 is opened to form a first groove 1017, and an upper portion of the middle pin 103 is embedded in the first groove 1017 to achieve a sliding connection with the upper channel barrel 1011;
the first lower web 1014 is coupled to an upper surface of the first body 1016.
Further, the side walls of the first groove 1017 along the length direction are respectively provided with a second groove 1018, the upper part of the middle pin 103 is provided with a first convex groove 1031 adapted to the second groove 1018, and the first convex groove 1031 is embedded into the second groove 1018, so that the middle pin 103 and the upper channel barrel 1011 can slide along the length direction.
The first locking mechanism includes a first unidirectional slip control wedge 1019 and a first manual switch 1010 for controlling the first unidirectional slip control wedge 1019;
each of the second grooves 1018 is provided with a pair of first unidirectional sliding control wedges 1019, a first preset distance is arranged between the first unidirectional sliding control wedges 1019, and the distance between the first unidirectional sliding control wedges 1019 and the inner wall of the first groove 1017 along the width direction is equivalent to the length of the middle pin 103.
As a preferred embodiment, two second grooves are respectively provided on each side wall in the length direction in the first groove.
In the initial state, the upper part of the middle pin is positioned between a pair of first unidirectional sliding control wedges (namely within a first preset distance range), the acting force received in the small earthquake stage is smaller, the displacement is smaller, the upper part of the middle pin slides between the pair of first unidirectional sliding control wedges, the upper metal damper does not deform, the damping force is not generated, and the earthquake-proof effect of the shock-proof rubber support is not hindered; in the large earthquake stage, the applied force is larger, the generated displacement is larger, the upper part of the middle pin post slides over the first unidirectional sliding control wedge block, the upper part of the middle pin post is clamped between the first unidirectional sliding control wedge block and the inner wall of the first groove along the width direction, and at the moment, the upper metal damper is deformed to form a relatively constant damping force; after the earthquake is finished, the first unidirectional sliding control wedge blocks can be pressed down through the first manual switch, so that the middle pin columns return to between the pair of first unidirectional sliding control wedge blocks, and the metal damping device can be reused.
As a preferred embodiment, the upper metal damper is connected with the upper channel barrel by bolts, and if the upper metal damper is damaged in the large earthquake stage, the upper metal damper can be detached and replaced by a new upper metal damper.
Further, referring to fig. 4 and 5, the lower channel barrel 1021 includes a second square 1023, an upper surface of the second square 1023 is opened to form a third recess 1024, and a lower portion of the middle pin 103 is embedded in the third recess 1024 to achieve a sliding connection with the lower channel barrel 1021.
Further, the side walls of the third groove 1024 along the length direction are respectively provided with a fourth groove 1025, the lower part of the middle pin 103 is provided with a second convex groove 1032 matched with the fourth groove 1025, and the second convex groove 1032 is embedded into the fourth groove 1025, so that the middle pin 103 and the lower channel barrel can slide along the length direction.
Further, the second locking mechanism comprises a second unidirectional slip control wedge 1026 and a second manual switch 1027 for controlling the second unidirectional slip control wedge 1026;
each fourth groove 1025 is provided with a pair of second unidirectional sliding control wedges 1026, a second preset distance is arranged between the pair of second unidirectional sliding control wedges 1026, and the distance between the second unidirectional sliding control wedges 1026 and the inner wall of the second groove 1025 along the width direction is equivalent to the length of the middle pin 103.
Further, referring to fig. 6, the lower metal damper 1022 includes a second upper connection plate 1028, a plurality of second damping plates 1029, and a second lower connection plate 1020, the plurality of second damping plates 1029 are supported between the second upper connection plate 1028 and the second lower connection plate 1020, the second upper connection plate 1028 is connected with the lower surface of the second square body 1023, and the second lower connection plate 1020 is connected with the lower portion of the shock insulation layer.
As a preferred embodiment, the number of the lower metal dampers is two.
As a preferred embodiment, two fourth grooves are respectively provided on each side wall in the length direction in the third groove.
In the initial state, the lower part of the middle pin is positioned between a pair of second unidirectional sliding control wedges (namely within a second preset distance range), the acting force received in the small earthquake stage is small, the displacement is small, the lower part of the middle pin slides between the pair of second unidirectional sliding control wedges, the lower metal damper does not deform, the damping force is not generated, and the earthquake-proof effect of the shock-proof rubber support is not hindered; in the large earthquake stage, the applied force is larger, the generated displacement is larger, the lower part of the middle pin post slides over the second unidirectional sliding control wedge block, the lower part of the middle pin post is clamped between the second unidirectional sliding control wedge block and the inner wall of the third groove along the width direction, and at the moment, the lower metal damper is deformed to form a relatively constant damping force; after the earthquake is finished, the second unidirectional sliding control wedge blocks can be pressed down through the second manual switch, so that the middle pin columns return to between the pair of second unidirectional sliding control wedge blocks, and the metal damping device can be reused.
As a preferred embodiment, the lower metal damper is connected with the lower channel barrel by bolts, and if the lower metal damper is damaged in the large earthquake stage, the lower metal damper can be disassembled and replaced by a new lower metal damper.
As a preferred embodiment, the first damping plate and/or the second damping plate is a perforated mild steel damping plate, or a parabolic mild steel damping plate.
In summary, the bidirectional large-displacement damping-variable metal damping device provided by the embodiment at least comprises the following beneficial effects:
(1) In the small earthquake stage, the upper metal damper and the lower metal damper do not provide damping action through the sliding of the first sliding mechanism and/or the second sliding mechanism, so that the shock insulation rubber support is not hindered, and a good shock absorption effect is formed; in the large earthquake stage, the first locking mechanism and the second locking mechanism can be used for locking, at the moment, the upper metal damper and the lower metal damper deform to generate hysteresis energy consumption and consume energy, and the hysteresis energy consumption and the energy consumption are jointly absorbed by the vibration isolation support in the vibration isolation layer;
(2) The projections of the first sliding mechanism and the second sliding mechanism on the horizontal plane are mutually perpendicular, so that the metal damping device provides bidirectional motion damping when any angle displacement occurs in the large earthquake stage, and the requirements of bidirectional large displacement and large damping of the earthquake isolation layer are met;
(3) When the earthquake is over, the middle pin column can return to the initial state through the first manual switch and/or the second manual switch, so that the metal damping device can be reused;
(4) The upper metal damper and the lower metal damper can be replaced after being damaged, and the maintenance is easy.
It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.
Claims (8)
1. The bidirectional large-displacement variable-damping metal damping device is characterized by comprising a first sliding mechanism, a second sliding mechanism and a middle pin;
the first slide mechanism comprises an upper channel barrel and at least one upper metal damper;
the second skid comprises a lower channel barrel and at least one lower metal damper;
the upper channel barrel is provided with a first locking mechanism, and the lower channel barrel is provided with a second locking mechanism;
the upper part of the upper metal damper is connected with the upper part of the shock insulation layer, and the lower part of the upper metal damper is connected with the upper channel barrel;
the upper part of the middle pin is embedded into the upper channel barrel, can slide in a first preset distance range and can be locked by a first locking mechanism;
the lower part of the middle pin is embedded into the lower channel barrel, can slide in a second preset distance range and can be locked by a second locking mechanism;
the lower channel barrel is also connected with the upper part of the lower metal damper, and the lower part of the lower metal damper is connected with the lower part of the shock insulation layer;
the projections of the first sliding mechanism and the second sliding mechanism on the horizontal plane are mutually perpendicular;
the upper channel barrel comprises a first square body, a first groove is formed in the opening of the lower surface of the first square body, and the upper part of the middle pin column is embedded into the first groove to realize sliding connection with the upper channel barrel;
the first lower connecting plate is connected with the upper surface of the first square body;
the side walls of the first grooves along the length direction are respectively provided with a second groove, the upper parts of the middle pin columns are provided with first convex grooves matched with the second grooves, and the first convex grooves are embedded into the second grooves, so that the middle pin columns and the upper channel barrel can slide along the length direction.
2. The bi-directional large displacement variable damping metal damping device of claim 1, wherein the upper metal damper comprises a first upper connection plate, a plurality of first damping plates, and a first lower connection plate; the plurality of first damping plates are supported between the first upper connecting plate and the first lower connecting plate, and the first upper connecting plate is connected with the upper part of the shock insulation layer.
3. The bi-directional large displacement variable damping metal damping device of claim 2, wherein the first locking mechanism comprises a first unidirectional slip control wedge and a first manual switch for controlling the first unidirectional slip control wedge;
and a pair of first unidirectional sliding control wedges are arranged on each second groove, a first preset distance is reserved between the pair of first unidirectional sliding control wedges, and the distance between the first unidirectional sliding control wedges and the inner walls of the first grooves along the width direction is equal to the length of the middle pin.
4. A bi-directional large displacement variable damping metal damping device according to claim 3, wherein the lower channel barrel comprises a second square body, a third groove is formed on the upper surface of the second square body in an opening way, and the lower part of the middle pin is embedded into the third groove to realize sliding connection with the lower channel barrel.
5. The bidirectional large-displacement variable damping metal damping device according to claim 4, wherein fourth grooves are respectively formed in side walls of the third grooves along the length direction, second convex grooves matched with the fourth grooves are formed in the lower portions of the middle pin, and the second convex grooves are embedded into the fourth grooves, so that the middle pin and the lower channel barrel can slide along the length direction.
6. The bi-directional large displacement variable damping metal damping device of claim 5, wherein the second locking mechanism comprises a second unidirectional slip control wedge and a second manual switch for controlling the second unidirectional slip control wedge;
and a pair of second unidirectional sliding control wedges are arranged on each fourth groove, a second preset distance is arranged between the pair of second unidirectional sliding control wedges, and the distance between the second unidirectional sliding control wedges and the inner walls of the second grooves along the width direction is equal to the length of the middle pin.
7. The bi-directional large-displacement variable damping metal damping device according to claim 6, wherein the lower metal damper comprises a second upper connection plate, a plurality of second damping plates and a second lower connection plate, the plurality of second damping plates are supported between the second upper connection plate and the second lower connection plate, the second upper connection plate is connected with the lower surface of the second square body, and the second lower connection plate is connected with the lower portion of the shock insulation layer.
8. The bi-directional large displacement variable damping metal damping device of claim 7, wherein the first damping plate and/or the second damping plate is a porous mild steel damping plate or a parabolic mild steel damping plate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710936198.8A CN107574946B (en) | 2017-10-10 | 2017-10-10 | Bidirectional large-displacement variable-damping metal damping device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710936198.8A CN107574946B (en) | 2017-10-10 | 2017-10-10 | Bidirectional large-displacement variable-damping metal damping device |
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| CN107574946A CN107574946A (en) | 2018-01-12 |
| CN107574946B true CN107574946B (en) | 2023-12-29 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1594909A (en) * | 2004-06-30 | 2005-03-16 | 大连理工大学 | Circular hole type flexible steel damper |
| CN104989006A (en) * | 2015-07-30 | 2015-10-21 | 广州大学 | Bidirectional large-displacement damping-variable viscous damping wall device |
| CN105178439A (en) * | 2015-08-14 | 2015-12-23 | 中船第九设计研究院工程有限公司 | Fastener type tensile limiting and damping bearing |
| CN205152781U (en) * | 2015-11-18 | 2016-04-13 | 广州大学 | Antitorque support |
| CN207405807U (en) * | 2017-10-10 | 2018-05-25 | 广州大学 | A kind of two-way big displacement variable damping metal damping unit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030099413A1 (en) * | 2001-11-26 | 2003-05-29 | Lee George C. | Seismic isolation bearing |
-
2017
- 2017-10-10 CN CN201710936198.8A patent/CN107574946B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1594909A (en) * | 2004-06-30 | 2005-03-16 | 大连理工大学 | Circular hole type flexible steel damper |
| CN104989006A (en) * | 2015-07-30 | 2015-10-21 | 广州大学 | Bidirectional large-displacement damping-variable viscous damping wall device |
| CN105178439A (en) * | 2015-08-14 | 2015-12-23 | 中船第九设计研究院工程有限公司 | Fastener type tensile limiting and damping bearing |
| CN205152781U (en) * | 2015-11-18 | 2016-04-13 | 广州大学 | Antitorque support |
| CN207405807U (en) * | 2017-10-10 | 2018-05-25 | 广州大学 | A kind of two-way big displacement variable damping metal damping unit |
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| CN107574946A (en) | 2018-01-12 |
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