CN103276830A - Lead shear damper - Google Patents
Lead shear damper Download PDFInfo
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- CN103276830A CN103276830A CN2013102162152A CN201310216215A CN103276830A CN 103276830 A CN103276830 A CN 103276830A CN 2013102162152 A CN2013102162152 A CN 2013102162152A CN 201310216215 A CN201310216215 A CN 201310216215A CN 103276830 A CN103276830 A CN 103276830A
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Abstract
The invention provides a lead shear damper comprising an upper cover plate (2) and a lower cover plate (3). One end of the upper cover plate (2) is provided with a fixed end plate (9), and the other end of the upper cover plate (2) is provided with an upper return spring (5) fixed on a sliding end plate (7). One end of the lower cover plate (3) is connected to the sliding end plate (7), and the other end of the lower cover plate (3) is connected to a return spring (6) fixed on the fixed end plate (9). The upper cover plate (2) overlaps with the lower cover plate (3). A shear lead block (1) is arranged at the connection of the upper cover plate (2) and the lower cover plate (3). Under rare earthquake action, the return springs can be compressed or elongated to realize shearing deformation of the shear lead block and energy consuming effect of friction of the upper cover plate and the lower cover plate, and return can be realized through initial pre-compression or pretension force of the return springs during and after the earthquake.
Description
Technical field
The present invention relates to a kind of damper, be specifically related to a kind of the realization from the damper that resets.
Background technology
In recent years, earthquake took place frequently in the world wide, when people carry out seismic design to structure, also began to pay attention to the utilization of energy-dissipating and shock-absorbing technology.Generally be to adopt the damper with energy dissipation capacity at the non bearing structure position.During frequently occurred earthquake, structure itself has enough rigidity, is in elastic stage; During rarely occurred earthquake, along with malformation increases, damper enters the non-resilient stage prior to agent structure, and damping increases, energy-dissipating and shock-absorbing, thus avoid or reduce the damage of agent structure.Plumbous because of its hysteresis full, the feature of stable performance, the damper structure of its manufacturing is simple, and is easy to process and obtain promoting and using.Various lead dampers have been developed at present both at home and abroad, as lead shear damper, lead extrusion damper, twist mode lead shear damper etc.With regard to the lead shear damper that present institute proposes and adopts, under the rarely occurred earthquake effect, the strong elastic-plastic deformation of lead shear damper can produce bigger remaining displacement, resets after causing shaking and changes comparatively difficult.Therefore, be necessary existing lead shear damper is transformed, propose a kind of novel energy-consumption from resetting lead shear damper, can under the rarely occurred earthquake effect, have enough energy dissipation capacities, simultaneously, also have earthquake centre and shake back from reset function.Based on this, be necessary to research and develop a kind of lead shear damper that has from reset function.
Summary of the invention
In order to remedy the defective of prior art, patent of the present invention provides a kind of lead shear damper that has from reset function, can under the rarely occurred earthquake effect, have enough energy dissipation capacities, and have the earthquake centre and the shake after from reset function, can effectively strengthen applicability and the safety of lead shear damper after earthquake centre and shake, more have practical value.
In order to realize above-mentioned technical purpose, the technical scheme of patent of the present invention is a kind of lead shear damper, comprise upper cover plate and lower cover, upper cover plate one end is provided with the fixed end end plate, and an other end is provided with upper reset spring, and upper reset spring is fixed on the sliding end end plate; Lower cover one end connects the sliding end end plate, and the other end connects back-moving spring down, and following back-moving spring is fixed on the fixed end end plate, and upper cover plate is superimposed on lower cover, and the position that upper cover plate is connected with lower cover is provided with the shearing lead.
The lead shear damper that has from reset function comprises the shearing lead, cover plate up and down, about bundled tube, back-moving spring up and down, the sliding end end plate, the fixed end end plate, constraint tube end-plate and junction plate, about bundled tube is lived in lower cover (shearing cover plate) and is sheared lead from outer wrap, about bundled tube two ends are provided with junction plate, about bundled tube one end junction plate is welded in the fixed end end plate, other end junction plate is welded in the sliding end end plate, sliding end end plate position is provided with the constraint tube end-plate in about bundled tube end, shear in a plurality of grooves that lead is fixed in cover plate up and down, patch ends one end links to each other with back-moving spring up and down respectively up and down, one end links to each other with fixed end end plate or sliding end end plate, back-moving spring up and down provided to surpass shear lead yield strength and initial precompression or the pretension of cover plate frictional force sum up and down, under the rarely occurred earthquake effect, back-moving spring compression or elongation up and down, cover plate relative motion up and down, realize shearing lead shear strain and the power consumption effect of cover plate friction up and down, after earthquake centre and shake, can realize resetting by initial precompression or the pretension of back-moving spring, thereby avoided the earthquake centre and shaken the problem that the general lead shear damper in back resets and changes difficulty, also avoided owing to the adverse effect of remaining displacement to structure.About bundled tube is at cover plate up and down, be reserved with the space between back-moving spring and the sliding end end plate up and down, thereby avoided earthquake centre and shake back lead shear damper to reset and changes difficult problem, also avoided owing to the adverse effect of remaining displacement to structure.Have from each position of lead shear damper of reset function and adopt welding procedure, the produce in factory moulding, the field by using bolt is installed.Wherein different shearing lead length provide different energy-dissipating and shock-absorbing abilities, different back-moving springs and slip gap lengths provide different strokes, different back-moving spring rigidity determines the rigidity of damper, therefore, lead shear damper can be according to the stressed size of concrete structure, deformation requirements, the difference of rigidity requirement from resetting, produce the corresponding suitable lead shear damper that resets certainly, have good practical value and economic benefit.
The sliding end end plate with the constraint tube end-plate between the slip pore size can adjust within the specific limits according to different requirements.Be by realizing at end plate and the back-moving spring installed between the cover plate up and down from reset function, adjust initial precompression or pretension size and can adjust power from reset function.
The present invention is that also about bundled tube is rolled on upper cover plate, lower cover, shearing lead and the sliding end end plate from external rings, and the fixed end end plate is sealed on about bundled tube one end, and the constraint tube end-plate is sealed on about bundled tube other end.
The present invention also is, is set to the hole that slides between sliding end end plate and the constraint tube end-plate.
The present invention is that also fixed end end plate and/or constraint tube end-plate are provided with junction plate.
The present invention is that also junction plate is fastened on the external surface of fixed end end plate.
The present invention is that also junction plate passes the constraint tube end-plate and is connected on the sliding end end plate.
The present invention also is, junction plate is perpendicular to being connected to sew cloth and putting between upper cover plate and the lower cover.
The present invention also is, also is provided with connecting hole on the junction plate.
The present invention is that also the shearing lead is tooth-shape structure, and the double wedge of shearing lead is mounted in respectively in upper cover plate and the lower cover.
The present invention also is, shears lead and is arranged on and is connected seam and about bundled tube intersection between upper cover plate and the lower cover.
Patent beneficial effect of the present invention is to have realized good reset capability by back-moving spring, has avoided the earthquake centre and has shaken the plumbous problem that resets and change difficulty of shearing in back, has also avoided owing to the adverse effect of remaining displacement to structure; In addition, patent of the present invention also has batch production and makes simple and on-the-spot advantage such as easy for installation, has higher utility and economic benefit.
Below in conjunction with accompanying drawing patent of the present invention is described further.
Description of drawings
Fig. 1 is the schematic diagram of the lead shear damper that resets certainly of the embodiment of the invention;
Fig. 2 is the sectional view of A-A among Fig. 1;
Fig. 3 is the sectional view of B-B among Fig. 1;
Wherein 1 for shearing lead, and 2 be upper cover plate, and 3 be lower cover, and 4 are about bundled tube, and 5 be upper reset spring, 6 under back-moving spring, 7 is the sliding end end plate, 8 is the slip space, 9 is the fixed end end plate, 10 is to retrain tube end-plate, 11 is connecting hole, 12 is junction plate.
The specific embodiment
Below to the further specifying of patented technology content of the present invention, but it is not restriction to patent flesh and blood of the present invention.
Lead shear damper comprises upper cover plate 2 and lower cover 3, and upper cover plate 2 one ends are provided with fixed end end plate 9, and an other end is provided with upper reset spring 5, and upper reset spring 5 is fixed on the sliding end end plate 7; Lower cover 3 one ends connect sliding end end plate 7, and the other end connects back-moving spring 6 down, and following back-moving spring 6 is fixed on the fixed end end plate 9, and upper cover plate 2 is superimposed on lower cover 3, and the position that upper cover plate 2 is connected with lower cover 3 is provided with shears lead 1.
It is that also about bundled tube 4 is rolled in upper cover plate 2, lower cover 3, shears on lead 1 and the sliding end end plate 7 from external rings, and fixed end end plate 9 is sealed on about bundled tube 4 one ends, and constraint tube end-plate 10 is sealed on about bundled tube 4 other ends.
It is that also hole 8 is set to slide between sliding end end plate 7 and the constraint tube end-plate 10.
It is that also fixed end end plate 9 and/or constraint tube end-plate 10 are provided with junction plate 12.
It is that also junction plate 12 is fastened on the external surface of fixed end end plate 9.
It is that also junction plate 12 passes constraint tube end-plate 10 and is connected on the sliding end end plate 7.
It also is, junction plate 12 is perpendicular to being connected to sew cloth and putting between upper cover plate 2 and the lower cover 3.
It also is, also is provided with connecting hole 11 on the junction plate 12.
It is that also shearing lead 1 is tooth-shape structure, and the double wedge of shearing lead 1 is mounted in respectively in upper cover plate 2 and the lower cover 3.
It also is, shears lead 1 and is arranged on and is connected seam and about bundled tube 4 intersections between upper cover plate 2 and the lower cover 3.
The lead shear damper that has from reset function comprises shearing lead 1, upper cover plate 2, lower cover 3, about bundled tube 4, upper reset spring 5, following back-moving spring 6, sliding end end plate 7, fixed end end plate 9, constraint tube end-plate 10 and junction plate 12, about bundled tube 4 is lived in cover plate 2 from outer wrap, lower cover 3(shears cover plate) and shear lead 1, about bundled tube 4 two ends are provided with junction plate 12, about bundled tube 4 one end junction plates 12 are welded in fixed end end plate 9, other end junction plate 12 is welded in sliding end end plate 7, sliding end end plate 7 positions are provided with constraint tube end-plate 10 in about bundled tube 4 ends, shearing lead 1 is fixed in a plurality of grooves between upper cover plate 2 and the lower cover 3, the big I of appropriate groove makes shears lead 1 distortion evenly, stressed reasonable, upper cover plate 2 links to each other with following back-moving spring 6 with upper reset spring 5 with lower cover 3 difference ends one end, one end links to each other with sliding end end plate 7 with fixed end end plate 9, to upper reset spring 5 and play back-moving spring 6 provide surpass shear lead 1 yield strength and about initial precompression or the pretension of cover plate frictional force sum, under the rarely occurred earthquake effect, back-moving spring compression or elongation, cover plate relative motion up and down, realize shearing lead 1 shear strain and the power consumption effect of cover plate friction up and down, realize resetting by initial precompression or the pretension of back-moving spring in earthquake centre and shake back, thereby avoided the earthquake centre and shaken the problem that the back lead shear damper resets and changes difficulty, also avoided owing to the adverse effect of remaining displacement to structure.
Patent of the present invention also is, about bundled tube 4 is at cover plate up and down, be reserved with slip space 8 between back-moving spring and the sliding end end plate 7 up and down.10 slip spaces of sliding end end plate 7 and constraint tube end-plate, 8 big I are adjusted within the specific limits according to different requirements.Be by realizing at end plate and the back-moving spring installed between the cover plate up and down from reset function, adjust initial precompression or pretension size and can adjust power from reset function.
Patented technology of the present invention is applicable to the energy-dissipating and shock-absorbing of structure, Fig. 1 is the schematic diagram of the lead shear damper that resets certainly of the embodiment of the invention, Fig. 2 is the sectional view of A-A among Fig. 1, Fig. 3 is the sectional view of B-B among Fig. 1, as Fig. 1,2, shown in 3, for structure division, at first structure is carried out force analysis, determine the stressed size of damper, thereby select the suitable damper of size, make initial precompression or pretension surpass lead yield strength and cover plate frictional force sum up and down, guarantee that damper can bring into play the energy-dissipating and shock-absorbing effect and can reset certainly under earthquake or other load actions.For plumbous shear energy dissipation part, to shear lead 1 and be fixed in a plurality of grooves between upper cover plate 2 and the lower cover 3, groove length is sheared 1/5 of lead 1 length approximately, shears lead 1 total length and can be about 3/5 of about bundled tube 4 length.Upper cover plate 2 and lower cover 3 ends one end weld with upper reset spring 5 and following back-moving spring 6 respectively, and upper reset spring 5 and following back-moving spring 6 length are about 1/5 of about bundled tube 4 length.One end and 7 welding of sliding end end plate, sliding end end plate 7 can adopt the Q235 steel plate of 10mm; One end and 9 welding of fixed end end plate, sliding end end plate 7 and fixed end end plate 9 all are welded with junction plate 12, from the lead shear damper that resets by connecting hole 11(and bolt matching on the junction plate 12) be connected with structure and stressed, guarantee that upper reset spring 5 and following back-moving spring 6 are in suitable elastic range, to guarantee also that simultaneously there are enough strokes in the slip space 8 between sliding end end plate 7 and the constraint tube end-plate 10, general desirable 10～150mm length.About bundled tube 4 adopts 10mm left and right sides steel plate to be welded, and stays 1～2mm space between the upper cover plate 2 that wraps up and lower cover 3, upper reset spring 5 and following back-moving spring 6 and sliding end end plate 7, as shown in Figure 3.Between the junction plate 12 of sliding end and the about bundled tube 4 and pass constraint and stay 1～2mm space during tube end-plate 10, as shown in Figure 2.Under the rarely occurred earthquake effect, upper reset spring 5 and 6 compressions of following back-moving spring or elongation, upper cover plate 2 and lower cover 3 relative motions realize that shearing lead 1 is sheared and the power consumption effect of upper cover plate 2 and lower cover 3 frictions.After earthquake centre and shake, can realize resetting by initial precompression or the pretension of upper reset spring 5 and following back-moving spring 6.
Fig. 1 is from resetting the preparation method of lead shear damper:
1, upper cover plate 2 and lower cover 3 connect as one with upper reset spring 5 and following back-moving spring 6 respectively;
2, shear in the groove that lead is fixed on the A that upper cover plate 2 and lower cover 3 and upper reset spring 5 and following back-moving spring 6 be welded into, be B;
3, B one end welding fixed end end plate 9 and junction plate 12, one ends welding sliding end end plate 7 and junction plate 12;
4, adopt 4 block plates to be welded into about bundled tube 4 parcel B, guarantee to stay 1～2mm space between about bundled tube 4 and the B;
5, about bundled tube 4 is welded on the fixed end end plate 9;
6, if sliding end end plate 7 not in about bundled tube 4, can apply precompression enters in about bundled tube 4 it, welding constraint tube end-plate 10 again guarantees between sliding end junction plate 12 and the about bundled tube 4 and passes when retraining tube end-plate 10 and stay 1～2mm space, removes precompression after welding.
Claims (10)
1. lead shear damper, it is characterized in that comprise upper cover plate (2) and lower cover (3), upper cover plate (2) one ends are provided with fixed end end plate (9), an other end is provided with upper reset spring (5), and upper reset spring (5) is fixed on the sliding end end plate (7); Lower cover (3) one ends connect sliding end end plate (7), the other end connects back-moving spring (6) down, following back-moving spring (6) is fixed on the fixed end end plate (9), upper cover plate (2) is superimposed on lower cover (3), and the position that upper cover plate (2) is connected with lower cover (3) is provided with shears lead (1).
2. lead shear damper according to claim 1, it is characterized in that, about bundled tube (4) is rolled in upper cover plate (2), lower cover (3), shears on lead (1) and the sliding end end plate (7) from external rings, fixed end end plate (9) is sealed on about bundled tube (4) one ends, and constraint tube end-plate (10) is sealed on about bundled tube (4) other end.
3. lead shear damper according to claim 2 is characterized in that, hole (8) is set to slide between sliding end end plate (7) and the constraint tube end-plate (10).
4. lead shear damper according to claim 3 is characterized in that, fixed end end plate (9) and/or constraint tube end-plate (10) are provided with junction plate (12).
5. lead shear damper according to claim 4 is characterized in that, junction plate (12) is fastened on the external surface of fixed end end plate (9).
6. lead shear damper according to claim 4 is characterized in that, junction plate (12) passes constraint tube end-plate (10) and is connected on the sliding end end plate (7).
7. lead shear damper according to claim 4 is characterized in that, junction plate (12) is perpendicular to being connected to sew cloth and putting between upper cover plate (2) and the lower cover (3).
8. according to each described lead shear damper in the claim 4 to 7, it is characterized in that, also be provided with connecting hole (11) on the junction plate (12).
9. according to each described lead shear damper in the claim 1 to 7, it is characterized in that shearing lead (1) is tooth-shape structure, the double wedge of shearing lead (1) is mounted in respectively in upper cover plate (2) and the lower cover (3).
10. lead shear damper according to claim 9 is characterized in that, shears lead (1) and is arranged on and is connected seam and about bundled tube (4) intersection between upper cover plate (2) and the lower cover (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310216215.2A CN103276830B (en) | 2013-06-03 | 2013-06-03 | A kind of lead shear damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310216215.2A CN103276830B (en) | 2013-06-03 | 2013-06-03 | A kind of lead shear damper |
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| Publication Number | Publication Date |
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| CN103276830A true CN103276830A (en) | 2013-09-04 |
| CN103276830B CN103276830B (en) | 2015-09-30 |
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| CN201310216215.2A Expired - Fee Related CN103276830B (en) | 2013-06-03 | 2013-06-03 | A kind of lead shear damper |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672520A (en) * | 2016-03-25 | 2016-06-15 | 大连理工大学 | Self-resetting SMA (shape memory alloy)-shearing lead combined energy dissipation damper |
| CN108222307A (en) * | 2018-01-15 | 2018-06-29 | 东南大学 | One kind can make structure realize self-centering damper |
| CN113789880A (en) * | 2021-09-13 | 2021-12-14 | 温州益德建设有限公司 | Structure is built to antidetonation room |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112267374A (en) * | 2020-10-29 | 2021-01-26 | 南京工业职业技术大学 | Damping support for bridge construction |
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| CN102287015A (en) * | 2011-06-01 | 2011-12-21 | 王涛 | Self-resetting metal damper |
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| CN103088931A (en) * | 2011-11-08 | 2013-05-08 | 建研科技股份有限公司 | variable friction damper |
| CN203320724U (en) * | 2013-06-03 | 2013-12-04 | 中南大学 | Lead shear damper |
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| CN85104304A (en) * | 1985-06-05 | 1986-12-03 | 新西兰发展财务公司 | Friction energy absorption plant and energy-absorbing method |
| JP2000130506A (en) * | 1998-10-30 | 2000-05-12 | Sumitomo Rubber Ind Ltd | Three-dimensional base isolation device |
| JP2000199541A (en) * | 1999-01-05 | 2000-07-18 | Nippon Steel Corp | Vibration suspension device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672520A (en) * | 2016-03-25 | 2016-06-15 | 大连理工大学 | Self-resetting SMA (shape memory alloy)-shearing lead combined energy dissipation damper |
| CN105672520B (en) * | 2016-03-25 | 2018-02-16 | 大连理工大学 | A kind of compound energy-consumption damper of Self-resetting marmem shearing type lead |
| CN108222307A (en) * | 2018-01-15 | 2018-06-29 | 东南大学 | One kind can make structure realize self-centering damper |
| CN113789880A (en) * | 2021-09-13 | 2021-12-14 | 温州益德建设有限公司 | Structure is built to antidetonation room |
| CN113789880B (en) * | 2021-09-13 | 2022-09-20 | 温州益德建设有限公司 | Structure is built to antidetonation room |
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| Publication number | Publication date |
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| CN103276830B (en) | 2015-09-30 |
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Effective date of registration: 20151111 Address after: 100844 Fuxing Road, Beijing, Haidian District, No. 10 Patentee after: CHINA RAILWAY CORPORATION Patentee after: Central South University Patentee after: National Engineering Laboratory for High Speed Rail Construction Address before: 410075 Department of civil engineering, School of railway engineering, Central South University, Shaoshan 22 South Road, Tianxin District, Hunan, Changsha Patentee before: Central South University Patentee before: National Engineering Laboratory for High Speed Rail Construction |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150930 Termination date: 20190603 |