CN105951584B - One kind classification antidetonation, vibration absorption and isolation support - Google Patents
One kind classification antidetonation, vibration absorption and isolation support Download PDFInfo
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- CN105951584B CN105951584B CN201610444219.XA CN201610444219A CN105951584B CN 105951584 B CN105951584 B CN 105951584B CN 201610444219 A CN201610444219 A CN 201610444219A CN 105951584 B CN105951584 B CN 105951584B
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- plate
- lower support
- mild steel
- upper bracket
- steel damping
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Classifications
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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
- E01D19/04—Bearings; Hinges
- E01D19/041—Elastomeric bearings
-
- 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
- E01D19/04—Bearings; Hinges
- E01D19/042—Mechanical bearings
- E01D19/046—Spherical bearings
-
- 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
- E01D19/04—Bearings; Hinges
- E01D19/042—Mechanical bearings
- E01D19/047—Pot bearings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses one kind classification antidetonation, vibration absorption and isolation support, for solving the problem of existing bearing anti seismic efficiency is not good.It includes one-way movable support, the first c-type mild steel damping member and speed locking device, the one-way movable support includes bottom plate, lower support plate, wear-resisting slide assemblies, upper bracket plate, disk spring component and the top plate for being sequentially overlapped setting from bottom to top, a pair of first c-type mild steel damping members are set respectively in the side of bottom plate and lower support plate, it is attached between upper bracket plate and lower support plate extension by a pair of speed locking devices, installation lead, disk spring component and the second c-type mild steel damping member between top plate of upper bracket plate.Seismic force reasonably can be scattered in each bridge pier after bearing using the present invention, resist earthquake by each pier intensity in, under small earthquake effect, the mild steel damping member of movable pier also can effectively participate in dissipation seismic energy.
Description
Technical field
The present invention relates to a kind of bridge pad, more particularly to a kind of bridge vibration absorption and isolation support.
Background technology
Continuous bridge structure is one of type of bridge for being most widely used at present, and it is generally set to being structurally characterized in that along bridge
There is an anchor block (setting hold-down support), other bridge piers are movable pier (setting sliding support).Therefore, in seismic process, knot
Structure is undertaken along bridge to seismic force is substantially all by anchor block, and movable pier does not undertake seismic force substantially.
Because continuous bridge is undertaken along bridge to seismic force is substantially all by anchor block, so when carrying out Aseismic Design to it
Often run into two problems.First, no matter carry out Ductility Design or seismic isolation design to anchor block, along bridge to seismic force still
Mainly undertaken by anchor block, movable pier does not undertake seismic force still, therefore when continuous beam overall length is longer or beam body deadweight is larger, by
It is larger that anchor block completes alone antidetonation task difficulty；Second, the Ductility Design or seismic isolation design one that are used to anchor block
As be directed to E2 earthquakes (rarely occurred earthquake), now E2 Structures under Earthquake design can meet requirement, but E1 earthquakes (in, small earthquake)
Under effect, Ductility Design or seismic isolation design do not play a role, although now earthquake intensity less, only undertakes ground by anchor block
Brisance still can not meet requirement.
The content of the invention
In order to solve the deficiencies in the prior art, the present invention provides a kind of classification antidetonation, vibration absorption and isolation support, existing for solving
Bearing can not realize classification antidetonation the problem of, by design two-stage buffer, reduce design difficulty, improve anti seismic efficiency.
The technical solution adopted for the present invention to solve the technical problems is：
One kind classification antidetonation, vibration absorption and isolation support, including one-way movable support, the first c-type mild steel damping member and speed lock
Determine device, the one-way movable support include being sequentially overlapped from bottom to top the bottom plate of setting, lower support plate, wear-resisting slide assemblies,
Upper bracket plate, disk spring component and top plate, it is characterised in that
It is fixed between the bottom plate and lower support plate by shear pin；And distinguish in the side of bottom plate and lower support plate
A pair of first c-type mild steel damping members are set, and one end of each pair the first c-type mild steel damping member laps one another and is hinged on lower branch
The middle part of seat board, other end is respectively hinged on bottom plate；
The surrounding of the square upper bracket plate is provided with four baffle plates, baffle plate and undersetting that one pair of which is oppositely arranged
It is attached between plate extension by a pair of speed locking devices, shape between baffle plate and lower support plate that another pair is oppositely arranged
Coordinate into slide-and-guide；
Four sleeves of circle first are provided with the upper surface of upper bracket plate, one is fixedly mounted in each first sleeve
Disk spring component is equipped with individual lead, the space between lead and the first sleeve, the disk spring component is
It is formed by stacking by multi-disc, four circular second sleeves is provided with top plate, the diameter of second sleeve is more than the first sleeve
Diameter, and second sleeve and the cooperation of the first sleeve, and be fixed between two sleeves by the second shear pin, set on top plate
Groove corresponding with lead is equipped with, and formation is slidably matched between the groove and lead；Between top plate and upper bracket plate
Axially it is provided with multiple second c-type mild steel damping members.
Further scheme, is provided with anchor structure in the baseplate underside, anchor structure is provided with the upside of top plate.
Further scheme, the wear-resisting slide assemblies include rubber slab and steel liner plate superposed on one another, wherein steel liner plate
With the setting tetrafluoro slide plate at cooperation is merged between upper bracket plate, coordinating between the rubber slab and lower support plate with merging
Place sets tetrafluoro slide plate.
Further scheme, the wear-resisting slide assemblies include hemispherical arc and tetrafluoro slide plate, the hemispherical arc
The lower surface of shape plate is spherical and forms spherical cooperation, the upper table of the hemispherical arc by tetrafluoro slide plate and lower support plate
Face is plane and coordinated by tetrafluoro slide plate and upper bracket plate formation plane.
Optimal, above-mentioned speed locking device is Hydraulic Velocity lock.
It can select, the one-way movable support is one in one-way movable pot bearing or one-way movable ball shaped steel bearing
Kind.
The beneficial effects of the invention are as follows：Compared with only relying on anchor block and resisting the Aseismic Design of seismic force, using the present invention
Bearing after seismic force reasonably can be scattered in each bridge pier, in, small earthquake effect under resist earthquake by each pier intensity,
Under rarely occurred earthquake effect, seismic force is scattered in after each pier, and the mild steel damping member of movable pier also can effectively participate in dissipation earthquake
Energy, it is achieved thereby that two level Aseismic Designs of continuous bridge structure, make structure design more reasonable, saved construction cost
And reduce design difficulty.
Brief description of the drawings
Fig. 1 is main view full sectional view of the invention.
Fig. 2 is vertical view half sectional view of the invention.
Fig. 3 is side view of the invention.
Fig. 4 is the Dynamic Graph (omitting disk spring component) of E1 geological process undersettings.
Fig. 5 is the Dynamic Graph (omitting disk spring component) of E2 geological process undersettings.
Fig. 6 is partial enlarged drawing at A in Fig. 1.
Fig. 7 is the deformation state (omitting disk spring component) of bearing in Fig. 1.
In figure：1 bottom plate, 2 lower support plates, 3 upper bracket plates, 4 rubber slabs, 5 steel liner plates, 6 tetrafluoro slide plates, 6 ' tetrafluoro slide plates, 7
First shear pin, 81 first c-type mild steel damping members, 82 second c-type mild steel damping members, 9 speed locking devices, 4 ' hemisphericals
Arc, 6 " tetrafluoro slide plates, 31 first sleeves, 32 second sleeves, 33 disk spring components, 34 leads, 35 second shear pins,
36 grooves, 10 top plates.
Embodiment
The present invention is a kind of classification antidetonation, vibration absorption and isolation support, is mainly used in continuous bridge structure, it is therefore an objective to realize structure
Two level Aseismic Designs (E1 earthquakes, E2 earthquakes), reduce Seismic Design of Continuous Girder Bridges design difficulty.
Embodiment one, as shown in Fig. 1 to Fig. 3, Fig. 6, major design is characterized by：Including one-way movable support, this bearing
Based on one-way movable support, and gather way in the bearing locking device, shear pin and c-type mild steel damping member, its
In, the preferably uni-directional movable pot bearing of one-way movable support, referring to figs. 1 to Fig. 3, the one-way movable pot bearing include bottom plate 1,
Lower support plate 2, upper bracket plate 3, rubber slab 4, steel liner plate 5, tetrafluoro slide plate 6, top plate, disk spring component and shear pin, bottom plate 1
It is fixed between lower support plate 2 by four the first vertically arranged shear pins 7, rubber slab 4 and steel liner plate 5 are superimposed and set
Put between lower support plate and upper bracket plate, and the position contacted respectively in steel liner plate 5 with upper bracket plate sets tetrafluoro slide plate 6,
And tetrafluoro slide plate 6 ' is set between lower support plate and bottom plate.
Wherein above-mentioned, rubber slab 4, steel liner plate 5, tetrafluoro slide plate 6 constitute wear-resisting slide assemblies, for upper lower support plate it
Between interference fits, also there is various deformation.
The improvement is that, the first c-type mild steel damping member is symmetrically set in two sides of above-mentioned lower support plate
81, the two ends of the first c-type mild steel damping member 81 are arranged in lower support plate 2 and the side of bottom plate 1 by way of being hinged respectively, are made
Obtain lower support plate and bottom plate forms a kind of support in the glide direction of bearing, this is supported on when E2 earthquakes occur and acted.
To ensure that the first c-type mild steel damping member 81 is in stable state in seismic process, in such a configuration, the first c-type is soft
Totally four pairs of steel damping member 81, one group is distributed in both sides two-by-two.Each of which is to the first c-type mild steel damping member 81 according to following
Mode installed：The one end of first c-type mild steel damping member 81 is hinged in the middle part of lower support plate, and shares a hinged ear
Plate, the other end is connected with the otic placode that is hinged in the glide direction of bottom plate 1 respectively, so, the mistake slided in lower support plate opposed bottom
Cheng Zhong, under the collective effect of two the first c-type mild steel damping members 81, with trend placed in the middle.
Above-mentioned lower support plate is square, and a circular groove for being used to accommodate rubber slab 4, lower branch are provided with an upper portion thereof
Four corners of seat board set pin-and-hole, for installing shear pin.Pass through the company of foundation between four shear pins and above-mentioned bottom plate
Connect.To two ends a 7 font plates are respectively welded in the suitable bridge of lower support plate, for installation rate locking device 9, form undersetting
The extension of plate.
The installation rate locking device 9 between above-mentioned upper bracket plate and bottom plate, speed locking device 9 is locked for Hydraulic Velocity
Determine device, two ends are respectively and fixedly installed to upper bracket plate 3 and bottom plate 1, and the speed locking device is to the glide direction of one-way support
Locked.Speed lockup's device is not had an effect when bearing sliding speed is very slow, when bearing sliding speed reaches faster speed
When spending, the locking of speed lockup's device two ends is no longer slided.
To adapt to above-mentioned modification, above-mentioned upper bracket plate 3 includes flat part and positioned at four edges and down-set
Rib, wherein with speed locking device 9 coordinate two ribs on screw hole is set, by way of screw is fastened with it is above-mentioned
Speed locking device 9 be attached.Formed and be slidably matched between two other rib and lower support plate 2 so that upper and lower bearing
There is slide-and-guide along glide direction between plate, to reduce friction, tetrafluoro slide plate is set at slide-and-guide mating surface.
Four the first sleeves of circle 31, four uniform cloth of the first sleeve of circle 31 are provided with the upper surface of upper bracket plate 3
Put, a lead 34 is fixedly mounted in each first sleeve, lead is circular steel column, in lead and the first sleeve
Between space in be equipped with disk spring component 33, disk spring component is formed by stacking by multi-disc, and top plate is steel plate,
Four circular second sleeves 32 are provided with top plate, the diameter of second sleeve is more than the diameter of the first sleeve, and second sleeve
Coordinate with the first sleeve, and be attached between two sleeves by the second shear pin 35, form a kind of temporary transient annexation.
Groove 36 corresponding with lead is provided with top plate 10, and formation is slidably matched between the groove and lead.
Multiple second c-type mild steel damping members 82, second are axially provided between top plate 10 and upper bracket plate 3
The size of c-type mild steel damping member 82 is less than the size of the first c-type mild steel damping member, the second c-type mild steel damping member quantity
More, one group is grouped and uses two-by-two, forms preferable damping effect.
After the bearing that the present invention is used at the movable pier of continuous bridge, under normal usage, shear pin is not broken
Bad, bearing can only prolong along bridge to slip, and sliding speed is very slow, and speed lockup's device is not had an effect, and the normal of bearing is not influenceed
Slide, now meet the design requirement of continuous bridge under normal usage.
Under E1 geological processes, bearing sliding speed, the suitable bridge of bearing is locked to slip behavior by speed locking device
Firmly, and with preliminary shock-absorbing capacity, but earthquake intensity is less, and shear pin is not destroyed, and the first c-type mild steel damping member is not
Work, now movable pier is by self-strength and anchor block shared seismic force, and less, seismic force disperses E1 earthquake intensities
To after anchor block and each movable pier shared, each pier can meet shockproof requirements by self-strength, with reference to Fig. 4.
Under E2 geological processes, bearing sliding speed quickly, to slip behavior by speed locking device locked by the suitable bridge of bearing
Firmly, simultaneously because earthquake intensity is big, shear pin is cut, and deformation takes place in the first c-type mild steel damping member of bearing both sides
Power consumption, with reference to Fig. 5, is concured, now movable pier undertakes seismic force and can effectively dissipated incessantly with speed locking device
Seismic energy, resists geological process with the Ductility Design or seismic isolation design of anchor block, structure is met shockproof requirements jointly.With
Anchor block alone bear geological process is compared, and after the bearing using the present invention, can be disperseed seismic force under E1, E2 geological process
Geological process is resisted at movable pier, and using different combinations, it is ensured that structure safety, while making structure design more adduction
Reason, has saved construction cost and has reduced design difficulty.
The bearing of the present invention is based on one-way movable pot bearing, and by less structural change, gather way locking
Device, shear pin and the first c-type mild steel damping member, realize that each part is sent out successively by foregoing invention under varying strength geological process
The effect of waving.
Embodiment two
It is similarly modified and is also applied to other types one-way movable support (such as one-way movable ball shaped steel bearing, with reference to Fig. 7)
It is same principle of the present invention, should be protected.Wherein, in one-way movable ball shaped steel bearing, wear-resisting slide assemblies are using half
Spherical arc, and tetrafluoro slide plate 6 " is set in the both sides up and down of hemispherical arc 4 '.
It is preferred that, the lower surface of above-mentioned hemispherical arc is spherical, and upper surface is plane.Upper surface is that plane can be with
Ensure smooth in glide direction.
The above-described embodiments are merely illustrative of preferred embodiments of the present invention, not to the model of the present invention
Enclose and be defined, on the premise of design spirit of the present invention is not departed from, various changes of the relevant technical staff in the field to the present invention
Shape and improvement, all should expand as determined by claims of the present invention in protection domain.
Claims (5)
1. one kind classification antidetonation, vibration absorption and isolation support, including one-way movable support, the first c-type mild steel damping member and speed lockup
Device, the one-way movable support include be sequentially overlapped from bottom to top the bottom plate of setting, lower support plate, wear-resisting slide assemblies, on
Support plate, disk spring component and top plate, it is characterised in that
It is fixed between the bottom plate and lower support plate by shear pin；And set respectively in the side of bottom plate and lower support plate
A pair of first c-type mild steel damping members, one end of each pair the first c-type mild steel damping member laps one another and is hinged on lower support plate
Middle part, other end is respectively hinged on bottom plate；
The surrounding of the square upper bracket plate is provided with four baffle plates, and the baffle plate that one pair of which is oppositely arranged prolongs with lower support plate
It is attached between extending portion by a pair of speed locking devices, is formed and slided between baffle plate and lower support plate that another pair is oppositely arranged
Action-oriented coordinates；
Four sleeves of circle first are provided with the upper surface of upper bracket plate, being fixedly mounted one in each first sleeve leads
Disk spring component is equipped with Xiang Zhu, the space between lead and the first sleeve, the disk spring component is by many
What piece was formed by stacking, four circular second sleeves are provided with top plate, the diameter of second sleeve is more than the diameter of the first sleeve,
And second sleeve and the first sleeve coordinate, and it is fixed, is provided with top plate by the second shear pin between two sleeves
Groove corresponding with lead, and formation is slidably matched between the groove and lead；Between top plate and upper bracket plate along
It is axially arranged to have multiple second c-type mild steel damping members.
2. a kind of classification antidetonation according to claim 1, vibration absorption and isolation support, it is characterised in that set in the baseplate underside
Anchor structure is equipped with, anchor structure is provided with the upside of top plate.
3. a kind of classification antidetonation according to claim 1, vibration absorption and isolation support, it is characterised in that the wear-resisting slide assemblies
Including rubber slab and steel liner plate superposed on one another, tetrafluoro is set to slide at cooperation with merging wherein between steel liner plate and upper bracket plate
Plate, tetrafluoro slide plate is set between the rubber slab and lower support plate with merging at cooperation.
4. a kind of classification antidetonation according to claim 1, vibration absorption and isolation support, it is characterised in that the wear-resisting slide assemblies
Including hemispherical arc and tetrafluoro slide plate, the lower surface of the hemispherical arc is spherical and pass through tetrafluoro slide plate and lower branch
Seat board forms spherical cooperation, and the upper surface of the hemispherical arc for plane and forms flat by tetrafluoro slide plate and upper bracket plate
Face coordinates.
5. a kind of classification antidetonation according to claim 1, vibration absorption and isolation support, it is characterised in that above-mentioned speed locking device
For Hydraulic Velocity lock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610444219.XA CN105951584B (en) | 2016-06-20 | 2016-06-20 | One kind classification antidetonation, vibration absorption and isolation support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610444219.XA CN105951584B (en) | 2016-06-20 | 2016-06-20 | One kind classification antidetonation, vibration absorption and isolation support |
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| Publication Number | Publication Date |
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| CN105951584A CN105951584A (en) | 2016-09-21 |
| CN105951584B true CN105951584B (en) | 2017-08-08 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106436561B (en) * | 2016-10-28 | 2018-05-04 | 中交柏嘉工程技术研究院有限公司 | Etc. firm arm speed lockup vibration absorption and isolation support |
| CN109811640B (en) * | 2019-02-20 | 2020-10-09 | 广州大学 | Two-stage buffering, limiting and shock isolating device |
| CN109898408A (en) * | 2019-03-15 | 2019-06-18 | 吴磊 | A kind of combined bridge antidetonation noise reduction support |
| CN110468695B (en) * | 2019-08-27 | 2021-05-28 | 天津大学 | Rigidity-variable three-dimensional shock isolation method and device |
| CN112411365B (en) * | 2020-12-22 | 2024-05-10 | 重庆交通大学 | Partition, reducing and locking combined universal anti-vibration support |
| CN114837068A (en) * | 2022-05-30 | 2022-08-02 | 胡雷锋 | Acceleration locking type bridge buffering limiting part |
| CN117328558A (en) * | 2023-11-08 | 2024-01-02 | 北京城建集团有限责任公司 | Graded tensioning double-ring connected arched girder reticulated shell structure and construction method thereof |
| CN118704326A (en) * | 2024-08-30 | 2024-09-27 | 上海材料研究所有限公司 | Combined energy consumption device for shock insulation protection of bridge structure |
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Address after: 250031 Shandong Province Flyover District of Ji'nan city Shanxi Road No. 576. Patentee after: Shandong transportation planning and Design Institute Co.,Ltd. Address before: 250031 Shandong Province Flyover District of Ji'nan city Shanxi Road No. 576. Patentee before: SHANDONG PROVINCIAL COMMUNICATIONS PLANNING AND DESIGN INSTITUTE |
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Address after: 250031 No. 576 Wushanxi Road, Tianqiao District, Jinan City, Shandong Province Patentee after: Shandong transportation planning and Design Institute Group Co.,Ltd. Address before: 250031 No. 576 Wushanxi Road, Tianqiao District, Jinan City, Shandong Province Patentee before: Shandong transportation planning and Design Institute Co.,Ltd. |