CN105696454A - Novel lead core steel pipe U-shaped damper - Google Patents
Novel lead core steel pipe U-shaped damper Download PDFInfo
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- CN105696454A CN105696454A CN201510941477.4A CN201510941477A CN105696454A CN 105696454 A CN105696454 A CN 105696454A CN 201510941477 A CN201510941477 A CN 201510941477A CN 105696454 A CN105696454 A CN 105696454A
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- steel pipe
- metallic plate
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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Abstract
The invention provides a novel lead core steel pipe U-shaped damper and belongs to the technical field of civil engineering structure damping. The novel lead core steel pipe U-shaped damper is mainly composed of an upper cover board, a lower cover board, U-shaped metal boards, lead core filling steel pipes and connecting bolts. Each lead core filling steel pipe is composed of an outer-layer steel pipe, a lead core filling layer and an inner-layer steel pipe. Each U-shaped metal board is composed of an upper straight section, a middle arc section and a lower straight section. Each middle arc section is semicircular, and the outer diameter of each middle arc section is the same as that of the corresponding outer-layer steel pipe. Each lead core filling steel pipe comprises the outer-layer steel pipe, the lead core filling layer and the inner-layer steel pipe from outside to inside. The placing direction of energy consumption components between the upper cover board and the lower cover board is set in the manner that the axis direction of the arc section of each U-shaped metal board is parallel to the width direction of the upper cover board and the lower cover board; the lead core filling steel pipes are located between the left U-shaped metal board and the right U-shaped metal board and are tangent to the arc sections of the two U-shaped metal boards; and the axis direction of each lead core filling steel pipe is parallel to the width direction of the upper cover board and the lower cover board. By the adoption of the damper, the double energy consumption effects of the U-shaped steel boards and the lead core steel pipes are used so that the earthquake action of a bridge and a structure can be effectively reduced.
Description
Technical field
The invention belongs to civil engineering structure cushion technique field, the one novel lead for retractable pencil steel pipe U-shaped antivibrator in the component being specifically related in a kind of science of bridge building to be arranged between bridge pier and beam slab or building structure。
Background technology
The many hair bands of earthquake or the higher area of seismic behavior, shock isolation system, for instance rubber earthquake isolation support, friction-pendulum shock-insulation support etc. are introduced into engineering for reducing geological process power。Although shock isolation system can effectively reduce geological process power; the protection component such as beam, post is not destroyed; but; larger displacement is produced due to its less lateral stiffness of shock isolation system; dissipation seismic energy is limited; therefore, installing antivibrator in the structure have shock isolation system can effective dissipation energy。
Common antivibrator has Viscous fluid damper, MR damper, metal damper etc.。Viscous fluid damper and MR damper are widely used in engineering practice, but the two there is also very important shortcoming。Viscous fluid damper and MR damper durability are all poor；Additionally, MR damper is also easy to liquid leakage。A kind of passive control mode that metal damper consumes energy as damping, because it has simplicity, low consumption, the good characteristic such as can change, applies more in engineering, and respond well。
Many metal dampers, for instance the anti-buckling supporting form of shearing steel plate antivibrator and steel or combined member, extensive use in building structure。Yet with certain restricted, these metal dampers can not be applied in science of bridge building。Such as, the restoring force of shearing steel plate antivibrator is less, and it is poor that the antivibrator of anti-buckling supporting form then bears large deformation ability, all can not be applied in bridge structure。Additionally, in the application of building structure, the rigidity of metal damper is also key factor, if rigidity is inadequate, then the relative storey displacement under serious seismic force effects can be caused excessive and produce P-Δ effect。
The present invention utilizes the deformation of surrender and lead outside mild steel plane to realize dual power consumption mechanism, and the metal damper of surrender type outside other the plane of comparing, for instance steel pipe antivibrator, U-shaped antivibrator etc., there is rigidity big, deformation is relatively big, and consume energy big good characteristic, simultaneously, can according to actual requirement of engineering, adjust lead for retractable pencil and fill the number of steel pipe, for different engineering demands, to reach the purpose that economic benefit optimizes。
Summary of the invention
It is an object of the present invention to provide a kind of power consumption mechanism in conjunction with different metal, the On A Retrofitted Damper in conjunction with different metal antivibrator motion mode designs, and improves the integration capability of metal damper damping power consumption。
The design of the present invention is: a kind of novel lead for retractable pencil steel pipe U-shaped antivibrator, it is characterised in that this antivibrator is mainly made up of upper cover plate (1), lower cover (2), U-shaped metallic plate, lead for retractable pencil filling steel pipe, connecting bolt。
Upper cover plate (1), lower cover (2) are all metallic plates, metallic plate is as cuboid, upper cover plate (1), lower cover (2) are parallel up and down, are dissipative members between the space that upper cover plate (1), lower cover (2) are parallel
Dissipative member is by left U-shaped metallic plate (3), right U-shaped metallic plate (4) and is positioned at lead for retractable pencil between left U-shaped metallic plate (3) and right U-shaped metallic plate (4) and fills steel pipe and constitute；Lead for retractable pencil is filled steel pipe and is made up of outer layer pipe, inner layer steel pipe and the intermediate layer lead for retractable pencil packed layer between inside and outside layer steel pipe；Left U-shaped metallic plate (3), right U-shaped metallic plate (4) lays respectively at upper cover plate (1), the two ends in the space that lower cover (2) is parallel, left U-shaped metallic plate (3), right U-shaped metallic plate (4) is respectively by upper parallel straight section (9), lower parallel straight section (11) and middle linkage section arc section (10) constitute (further arc section is semi-circular segments), left U-shaped metallic plate (3) upper cover plate (1) all parallel with the upper parallel straight section (9) of right U-shaped metallic plate (4) is also fixed on upper cover plate (1) by connecting bolt, the lower parallel straight section (11) of left U-shaped metallic plate (3) and right U-shaped metallic plate (4) is fixed on lower cover (2) each parallel to lower cover (2) and by connecting bolt；The middle linkage section arc section (10) of left U-shaped metallic plate (3) and right U-shaped metallic plate (4) is tangent with the outer layer pipe that lead for retractable pencil fills steel pipe respectively, simultaneously to fill the outer layer pipe of steel pipe also tangent with upper cover plate (1), lower cover (2) respectively for lead for retractable pencil, and welds together with upper cover plate (1), lower cover (2) respectively；Being provided with multiple lead for retractable pencil between left U-shaped metallic plate (3), right U-shaped metallic plate (4) and fill steel pipe (as two lead for retractable pencils fill steel pipes), lead for retractable pencil is filled tangent between steel pipe and point of contact and is welded together。
Upper cover plate (1), (2) three directions of lower cover arrange from big to small according to size is length direction, width and thickness direction respectively；It is parallel with upper and lower cover plate width that lead for retractable pencil fills steel pipe axis direction。
Lead for retractable pencil of the present invention is filled steel pipe and is made up of outer layer pipe, lead for retractable pencil packed layer, inner layer steel pipe。U-shaped metallic plate structure is identical, is made up of upper flat straight section, middle circle segmental arc, lower flat straight section；Middle circle segmental arc is shaped as semicircle, and external diameter is identical with the external diameter of outer layer pipe。Lead for retractable pencil fills steel pipe by up of three layers, is outer layer pipe, lead for retractable pencil packed layer, inner layer steel pipe from outside to inside respectively。Between upper and lower cover plate, the placement direction of dissipative member is that U-shaped metallic plate arc section axis direction is parallel with upper and lower cover plate width；Lead for retractable pencil fills steel pipe between left and right two U-shaped metallic plates and all tangent with the arc section of two U-shaped metallic plates；It is parallel with upper and lower cover plate width that lead for retractable pencil fills steel pipe axis direction。U-shaped metallic plate is connected with upper and lower cover plate bolt, and junction is positioned at flat segments part；Outer layer pipe and upper and lower cover plate at point of contact place with being welded to connect。
Middle circle segmental arc is shaped as semicircle, and external diameter is identical with the external diameter of outer layer pipe。
U-shaped metallic plate and inside and outside layer tube material can be the low-yield steel determined according to design requirement。
Present invention have the advantage that
1. power consumption is big。The present invention utilizes low-yield steel as the material of U-shaped metallic plate and the inside and outside layer steel pipe of parcel lead for retractable pencil, utilizes surrender mechanism outside plane to consume energy。Additionally, received extruding by the lead for retractable pencil of inside and outside layer steel pipe parcel, deform power consumption。Plumbous plastic deformation ability is good, has higher flexibility and malleability, gets final product Recovery and recrystallization under room temperature condition, making its strain hardening disappear, tissue and performance also will then revert to the state before deformation, thus without producing residual stress, without producing fatigue state, it it is desirable Energy dissipating material。
2. rigidity is bigger。With other metal dampers, for instance shearing steel plate antivibrator, steel pipe antivibrator etc. is compared, and the present invention has bigger rigidity, it is possible to more effective prevent relative storey displacement under macroseism excessive。
3. deformability is bigger。Material used by the present invention has Low Yield Point Steel and lead, and both of which is to bear the material of moderate finite deformation。Meanwhile, U-shaped metallic plate distinguishes the forward travel mode of similar crawler belt and wheel with the steel pipe kinestate when upper and lower cover plate relative motion, it is possible to well increase the ductility of antivibrator。
4. consumption is low, it is simple to make, replaceable。The present invention has the good characteristic of metal damper。Cost is low, makes simple, has good economic benefit。Every time after violent earthquake, it is possible to changing antivibrator, old metal damper material can process re-using, compares environmental protection and economy。
Accompanying drawing explanation
Fig. 1 is the front view of the present invention。
Fig. 2 is the A-A profile of Fig. 1。
Fig. 3 is the U-shaped metallic plate schematic diagram of Fig. 1
Fig. 4 is that lead for retractable pencil fills steel pipe composition schematic diagram
Fig. 5 is metal damper application schematic diagram on bridge
Fig. 6 is lead for retractable pencil steel pipe U-shaped antivibrator application schematic diagram in the frame
Number in the figure:
1-upper cover plate；2-lower cover；3-left U-shaped metallic plate；The right U-shaped metallic plate of 4-；The outer steel pipe of 5-；6-circle lead for retractable pencil packed layer；7-inner layer steel pipe；8-connecting bolt；9-upper flat straight section；10-middle circle segmental arc；11-lower flat straight section；12-antivibrator；13-superstructure；14-bearing；15-bent cap；16-bridge pier；17-Vierendeel girder；18-frame column；19-timbering with rafter arch sets；20-Vierendeel girder。
Detailed description of the invention
The invention provides a kind of novel lead for retractable pencil steel pipe U-shaped antivibrator, below in conjunction with the drawings and specific embodiments, the present invention will be further described, but is not limited to following example。
Embodiment 1
Lead for retractable pencil steel pipe U-shaped antivibrator as shown in Figure 1, fills steel pipe composition including upper cover plate, lower cover, the U-shaped metallic plate on both sides and the lead for retractable pencil of centre, and lead for retractable pencil is filled steel pipe and is made up of outer layer pipe, lead for retractable pencil packed layer and inner layer steel pipe。
Make lead for retractable pencil and fill steel pipe, first by outer layer pipe 5 and inner layer steel pipe 7 axis coinciding, be perpendicular to horizontal plane and nesting is put well, plumbous hot melt is cast in the space between two-layer steel pipe, forms lead for retractable pencil packed layer 6。
Make U-shaped metallic plate, metallic plate is processed into three sections, upper flat straight section 9, middle circle segmental arc 10, lower flat straight section 11；Arc section 10 be shaped as semicircle, external diameter is identical with the external diameter of outer layer pipe 5。The reserved bolt cavity of flat segments part
Make upper and lower cover plate 1,2, it is necessary to prepared screw-bolt hole hole。
Install and make integral damping device, by lower cover horizontal positioned, symmetrically placed left and right two U-shaped metallic plates 3,4 thereon, the placement parallel with lower cover 2 width of U-shaped metallic plate 3,4 arc section axis direction and two arc sections are respectively facing the other side, and the nearest spacing of left and right arc section is the external diameter of outer layer pipe 5。At left U-shaped metallic plate 3 with lower cover 2 in the lower flat segments 9 contacted, connecting U-shaped metallic plate and lower cover with bolt is fixing, lower flat straight section 9 is connected by right U-shaped metallic plate 4 same way with lower cover 2。Place the lead for retractable pencil made in the middle of two U-shaped metallic plates 3,4 and fill steel pipe (outer layer pipe 5, lead for retractable pencil implant 6, inner layer steel pipe 7), lead for retractable pencil is filled steel pipe axis and is oriented parallel to the width placement of lower cover 2, and outer layer pipe 5 and lower cover 2 junction are with being welded to connect。1 upper cover plate is covered in two U-shaped metallic plate 3,4 upper straight section parts, and be tangential on the midline of the width of upper cover plate 1 with outer layer pipe 5。The flat segments part of two U-shaped metallic plates 3,4 is wanted to contact with upper cover plate 1, and is connected with upper cover plate 1 with bolt, and outer layer pipe 5 and upper cover plate 1 the tangent are welded to connect。
Fig. 5 demonstrates this antivibrator arrangement in bridge, the lead for retractable pencil steel pipe U-shaped antivibrator of the present invention is placed between the body of a bridge and bridge pier, used in parallel with body of a bridge bearing, utilize the screwed hole arranged on the upper cover plate 1 of lead for retractable pencil steel pipe U-shaped antivibrator of the present invention and lower cover 2, with securing member (convenient technical process, not specifically illustrated in figure), the present invention is connected with the body of a bridge and bridge pier respectively。
Fig. 6 demonstrates this antivibrator arrangement in the frame, described upper cover plate 1 and Vierendeel girder consolidation, and lower cover 2 is connected with building structure by auxiliary stand。
Antivibrator quantity and Bolt sizes is determined according to material property, level of processing and design requirement。
Owing to lead for retractable pencil steel pipe U-shaped antivibrator of the present invention is that the deformation utilizing component obtains bigger flexural deformation in limited height; rather than the tension and compression yield deformation directly utilizing metal material obtains deflection; therefore bigger deflection can be realized; dissipate more multi-energy, is more beneficial for the protection of frame structure。
In actual applications, it is also possible to the present invention is directly welded and is connected on metal framework or utilizes securing member directly to fix。Additionally, be connected with other structures in order to convenient, on upper and lower cover plate except the through hole being arranged to connection described in this example, it is also possible to be provided with other structures for connecting such as the otic placode of connecting hole, snap close, suspension ring。
The upper and lower cover plate of the present invention is directly connected by this example with the body of a bridge and bridge pier; in actual applications; by auxiliary frame structure, the present invention can also be linked together with the body of a bridge and bridge pier; certainly, the arrangement form of the present invention and usage quantity are also not limited to this example, it is possible to be in optimized selection according to engineering is actual; also can act as identical effect; independent explanation is not done one by one, as long as based on the know-why of the present invention, all in the protection category of the present invention at this。
Claims (4)
1. a novel lead for retractable pencil steel pipe U-shaped antivibrator, it is characterised in that this antivibrator is mainly made up of upper cover plate (1), lower cover (2), U-shaped metallic plate, lead for retractable pencil filling steel pipe, connecting bolt；
Upper cover plate (1), lower cover (2) are all metallic plates, metallic plate is as cuboid, upper cover plate (1), lower cover (2) are parallel up and down, are dissipative members between the space that upper cover plate (1), lower cover (2) are parallel；
Dissipative member is by left U-shaped metallic plate (3), right U-shaped metallic plate (4) and is positioned at lead for retractable pencil between left U-shaped metallic plate (3) and right U-shaped metallic plate (4) and fills steel pipe and constitute；Lead for retractable pencil is filled steel pipe and is made up of outer layer pipe, inner layer steel pipe and the intermediate layer lead for retractable pencil packed layer between inside and outside layer steel pipe；Left U-shaped metallic plate (3), right U-shaped metallic plate (4) lays respectively at upper cover plate (1), the two ends in the space that lower cover (2) is parallel, left U-shaped metallic plate (3), right U-shaped metallic plate (4) is respectively by upper parallel straight section (9), lower parallel straight section (11) and middle linkage section arc section (10) constitute (further arc section is semi-circular segments), left U-shaped metallic plate (3) upper cover plate (1) all parallel with the upper parallel straight section (9) of right U-shaped metallic plate (4) is also fixed on upper cover plate (1) by connecting bolt, the lower parallel straight section (11) of left U-shaped metallic plate (3) and right U-shaped metallic plate (4) is fixed on lower cover (2) each parallel to lower cover (2) and by connecting bolt；The middle linkage section arc section (10) of left U-shaped metallic plate (3) and right U-shaped metallic plate (4) is tangent with the outer layer pipe that lead for retractable pencil fills steel pipe respectively, simultaneously to fill the outer layer pipe of steel pipe also tangent with upper cover plate (1), lower cover (2) respectively for lead for retractable pencil, and welds together with upper cover plate (1), lower cover (2) respectively；Being provided with multiple lead for retractable pencil between left U-shaped metallic plate (3), right U-shaped metallic plate (4) and fill steel pipe, lead for retractable pencil is filled tangent between steel pipe and point of contact and is welded together。
2. according to the one of claim 1 novel lead for retractable pencil steel pipe U-shaped antivibrator, it is characterised in that upper cover plate (1), (2) three directions of lower cover arrange from big to small according to size is length direction, width and thickness direction respectively；It is parallel with upper and lower cover plate width that lead for retractable pencil fills steel pipe axis direction。
3. according to the one of claim 1 novel lead for retractable pencil steel pipe U-shaped antivibrator, it is characterised in that be provided with two lead for retractable pencils between left U-shaped metallic plate (3), right U-shaped metallic plate (4) and fill steel pipe。
4. according to the one of claim 1 novel lead for retractable pencil steel pipe U-shaped antivibrator, it is characterised in that U-shaped metallic plate and inside and outside layer tube material are the low-yield steel determined according to design requirement。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510941477.4A CN105696454B (en) | 2015-12-16 | 2015-12-16 | A kind of lead for retractable pencil steel pipe U-shaped damper |
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| CN201510941477.4A CN105696454B (en) | 2015-12-16 | 2015-12-16 | A kind of lead for retractable pencil steel pipe U-shaped damper |
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| CN105696454A true CN105696454A (en) | 2016-06-22 |
| CN105696454B CN105696454B (en) | 2018-04-06 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107806271A (en) * | 2017-09-21 | 2018-03-16 | 同济大学 | Damper |
| CN109798314A (en) * | 2019-02-22 | 2019-05-24 | 沈阳远大装备科技有限公司 | The heat treatment method of metal isolator and its bending plate |
| CN112359998A (en) * | 2020-11-02 | 2021-02-12 | 中原工学院 | Telescopic replaceable buckling-restrained energy-dissipation supporting component |
| CN112554361A (en) * | 2020-11-30 | 2021-03-26 | 中原工学院 | Assembled replaceable two-stage buckling-restrained energy-dissipation supporting component |
| CN113322782A (en) * | 2021-05-31 | 2021-08-31 | 哈尔滨工业大学 | Welding-free shape memory alloy double-tube shearing energy dissipation device filled with rubber |
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| CN105113399A (en) * | 2015-08-14 | 2015-12-02 | 山东公路机械厂 | Floating tooth type large-displacement bridge expansion device |
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| CN1550619A (en) * | 2003-05-16 | 2004-12-01 | 新日本制铁株式会社 | Anti-shock device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107806271A (en) * | 2017-09-21 | 2018-03-16 | 同济大学 | Damper |
| CN109798314A (en) * | 2019-02-22 | 2019-05-24 | 沈阳远大装备科技有限公司 | The heat treatment method of metal isolator and its bending plate |
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| CN113322782A (en) * | 2021-05-31 | 2021-08-31 | 哈尔滨工业大学 | Welding-free shape memory alloy double-tube shearing energy dissipation device filled with rubber |
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