CN105951584A - Graded anti-seismic, seismic-reducing and seismic-isolating support - Google Patents
Graded anti-seismic, seismic-reducing and seismic-isolating support Download PDFInfo
- Publication number
- CN105951584A CN105951584A CN201610444219.XA CN201610444219A CN105951584A CN 105951584 A CN105951584 A CN 105951584A CN 201610444219 A CN201610444219 A CN 201610444219A CN 105951584 A CN105951584 A CN 105951584A
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- Prior art keywords
- plate
- seismic
- lower support
- support plate
- upper bracket
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Classifications
-
- 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
Abstract
The invention discloses a graded anti-seismic, seismic-reducing and seismic-isolating support which is used for solving the problem that an existing support is poor in anti-seismic effect. The graded anti-seismic, seismic-reducing and seismic-isolating support comprises a unidirectional movable support, first C-shaped soft steel damping components and a speed locking device. The unidirectional movable support comprises a base plate, a lower support plate, an abrasion-resistant sliding assembly, an upper support plate, a disk spring assembly and a top plate which are sequentially overlaid from bottom to top. The base plate and the side of the lower support plate each are provided with a pair of first C-shaped soft steel damping components, and the upper support plate is connected with an extending part of the lower support plate through a pair of speed locking devices. A guide post, the disk spring assembly and second C-shaped soft steel damping components are installed between the upper support plate and the top plate. After the support is adopted, earthquake force can be reasonably dispersed to each pier, medium and small earthquakes are resisted by means of intensity of each pier, and soft steel damping components of movable piers can also effectively participate in dissipation of earthquake energy.
Description
Technical field
The present invention relates to a kind of bridge pad, particularly relate to a kind of bridge vibration absorption and isolation support.
Background technology
Continuous bridge structure is one of type of bridge of being most widely used at present, its along bridge to construction features
Being to be typically provided with an anchor block (setting hold-down support), other bridge piers are movable pier (setting sliding support).
Therefore, in seismic process, structure is undertaken by anchor block to seismic force is substantially all along bridge, and movable pier is basic
Do not undertake seismic force.
Owing to continuous bridge is undertaken by anchor block, so resisting it to seismic force is substantially all along bridge
Two problems are often run into during shake design.No matter one, carry out Ductility Design or subtract shock insulation and set anchor block
Meter, is still mainly undertaken by anchor block to seismic force along bridge, and movable pier does not the most undertake seismic force, therefore when even
When continuous beam overall length is longer or beam body deadweight is bigger, anchor block complete alone antidetonation task difficulty bigger；Its two,
The Ductility Design or the seismic isolation design that use anchor block are generally directed to E2 earthquake (rarely occurred earthquake), this
Time the design of E2 Structures under Earthquake can meet requirement, but under E1 earthquake (in, small earthquake) effect, prolong
Property design or seismic isolation design do not play a role, although now earthquake intensity is little, but only undertaken by anchor block
Seismic force still cannot meet requirement.
Summary 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, is used for
Solve existing bearing and can not realize the problem of classification antidetonation, buffered by design two-stage, reduce design difficulty,
Improve anti seismic efficiency.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of classification antidetonation, vibration absorption and isolation support, including one-way movable support, the first c-type mild steel damping structure
Part and speed locking device, described one-way movable support include being sequentially overlapped from bottom to top setting base plate, under
Support plate, wear-resisting slide assemblies, upper bracket plate, disk spring assembly and top board, it is characterised in that
It is fixed by shear pin between described base plate and lower support plate；And in base plate and the side of lower support plate
Face is respectively provided with a pair first c-type mild steel damping members, one end of every pair of first c-type mild steel damping member that
This overlaps and is hinged on the middle part of undersetting, and other end is respectively hinged on base plate；
The surrounding of square described upper bracket plate is provided with four baffle plates, the baffle plate that one pair of which is oppositely arranged with
It is attached by a pair speed locking device between lower support plate extension, the baffle plate of another pair of opposing
Coordinate with forming slide-and-guide between lower support plate；
Upper surface at upper bracket plate is provided with four circle the first sleeves, solid in each first sleeve
Dingan County fills a lead, is equipped with disk spring assembly in the space between lead and the first sleeve,
Described disk spring assembly is formed by stacking by multi-disc, is provided with four circle the second sleeves on top board,
The diameter of the second sleeve is more than the diameter of the first sleeve, and the second sleeve and the first sleeve coordinate, and at two sets
It is fixed by the second shear pin between Tong, top board is provided with the groove corresponding with lead, and should
Formed between groove and lead and be slidably matched；Axially it is provided with multiple between top board and upper bracket plate
Second c-type mild steel damping member.
Scheme further, is provided with anchor structure at described baseplate underside, is provided with anchoring on the upside of top board
Structure.
Scheme further, described wear-resisting slide assemblies includes rubber slab superposed on one another and steel liner plate, wherein
Join between steel liner plate and upper bracket plate to be incorporated at cooperation and tetrafluoro slide plate is set, described rubber slab and lower support plate
Between join to be incorporated at cooperation tetrafluoro slide plate be set.
Scheme further, described wear-resisting slide assemblies includes hemispherical arc and tetrafluoro slide plate, described half
The lower surface of spherical arc is spherical and forms spherical cooperation with lower support plate by tetrafluoro slide plate, described half
The upper surface of spherical arc is plane and is coordinated with upper bracket plate formation plane by tetrafluoro slide plate.
Optimal, above-mentioned speed locking device is Hydraulic Velocity lock.
Can select, described one-way movable support is one-way movable pot bearing or one-way movable ball shaped steel bearing
In one.
The invention has the beneficial effects as follows: compared with the Aseismic Design only relying on anchor block and resisting seismic force, use
Reasonably seismic force can be scattered in after the bearing of the present invention each bridge pier, in, under small earthquake effect rely on
Each pier intensity resists earthquake, under rarely occurred earthquake effect, after seismic force is scattered in each pier, and the mild steel of movable pier
Damping member also can effectively participate in dissipation seismic energy, it is achieved thereby that two level antidetonations of continuous bridge structure
Design, makes structure design more reasonable, has saved construction cost and reduced design difficulty.
Accompanying drawing explanation
Fig. 1 is that the master of the present invention regards full sectional view.
Fig. 2 is the vertical view half sectional view of the present invention.
Fig. 3 is the side view of the present invention.
Fig. 4 is the Dynamic Graph (omitting disk spring assembly) of E1 geological process undersetting.
Fig. 5 is the Dynamic Graph (omitting disk spring assembly) of E2 geological process undersetting.
Fig. 6 is partial enlarged drawing at A in Fig. 1.
Fig. 7 is the deformation state (omitting disk spring assembly) of bearing in Fig. 1.
In figure: 1 base plate, 2 lower support plate, 3 upper bracket plates, 4 rubber slabs, 5 steel liner plates, 6 tetrafluoros are sliding
Plate, 6 ' tetrafluoro slide plates, 7 first shear pins, 81 first c-type mild steel damping members, 82 second c-types are soft
Steel damping member, 9 speed locking devices, 4 ' hemispherical arcs, 6 " tetrafluoro slide plate, 31 first sleeves,
32 second sleeves, 33 disk spring assemblies, 34 leads, 35 second shear pins, 36 grooves, 10 tops
Plate.
Detailed description of the invention
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 the two level Aseismic Design (E1 earthquake, E2 earthquake) of structure, 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: include one-way movable
Bearing, this bearing is based on one-way movable support, and gather way in this bearing locking device, shearing
Pin and c-type mild steel damping member, wherein, the preferably uni-directional movable pot bearing of one-way movable support, with reference to figure
1 to Fig. 3, this one-way movable pot bearing include base plate 1, lower support plate 2, upper bracket plate 3, rubber slab 4,
Steel liner plate 5, tetrafluoro slide plate 6, top board, disk spring assembly and shear pin, base plate 1 and lower support plate 2 it
Between be fixed by four the first vertically arranged shear pins 7, rubber slab 4 and steel liner plate 5 superposition and set
Put between lower support plate and upper bracket plate, and arrange at the position that steel liner plate 5 contacts with upper bracket plate respectively
Tetrafluoro slide plate 6, and tetrafluoro slide plate 6 ' is set between lower support plate and base plate.
The most above-mentioned, rubber slab 4, steel liner plate 5, tetrafluoro slide plate 6 form wear-resisting slide assemblies, are used for
Interference fits between upper lower support plate, there is also various deformation.
Theing improvement is that, the arrange first c-type mild steel symmetrical in two sides of above-mentioned lower support plate hinders
Buddhist nun's component 81, the first c-type mild steel damping member 81 two ends are arranged on lower support plate respectively by the way of hinged
2 and base plate 1 side on so that lower support plate and base plate form a kind of support in the glide direction of bearing, should
It is supported on generation effect when E2 earthquake occurs.For ensureing that the first c-type mild steel damping member 81 is at seismic process
In be in steady statue, in such a configuration, the first c-type mild steel damping member 81 is totally four right, two-by-two one
Group is distributed in both sides.First c-type mild steel damping member 81 is installed by each of which in the following way:
First c-type mild steel damping member 81 one end is hinged in the middle part of lower support plate, and shares a hinged otic placode 811,
The other end is connected with the hinged otic placode 811 ' in base plate 1 glide direction respectively, so, relative in lower support plate
During base plate slides, under the common effect of two the first c-type mild steel damping members 81, have placed in the middle
Trend.
Above-mentioned lower support plate is square, be provided with at an upper portion thereof one recessed for accommodating the circle of rubber slab 4
Groove, four corners of lower support plate arrange pin-and-hole, are used for installing shear pin.By four shear pins with upper
Set up between the base plate stated and connect.Suitable bridge in lower support plate is respectively welded 7 font plates to two ends, uses
In installation rate locking device 9, form the extension of lower support plate.
Installation rate locking device 9 between above-mentioned upper bracket plate and base plate, speed locking device 9 is liquid
Pressure speed lockup's device, two ends are respectively and fixedly installed to upper bracket plate 3 and base plate 1, and this speed locking device pair
The glide direction of one-way support locks.Speed lockup's device is not had an effect when bearing sliding speed is the slowest,
When bearing sliding speed reaches speed faster, speed lockup's device two ends lock, and no longer slide.
For adapting to above-mentioned amendment, above-mentioned upper bracket plate 3 include flat part and be positioned at four edges and to
The rib of lower setting, two ribs wherein coordinated with speed locking device 9 arranges screw hole, passes through spiral shell
Clench solid mode to be attached with above-mentioned speed locking device 9.Two other rib and lower support plate 2
Between formed and be slidably matched so that along glide direction, there is slide-and-guide between upper and lower support plate, for subtracting
Little friction, coordinates at slide-and-guide and arranges tetrafluoro slide plate at face.
Upper surface at upper bracket plate 3 is provided with four circle the first sleeves 31, four circle the first sleeves
31 are evenly arranged, and fixedly mount a lead 34 in each first sleeve, and lead is circular steel column,
Space between lead and the first sleeve is equipped with disk spring assembly 33, disk spring assembly be by
Multi-disc is formed by stacking, and top board is steel plate, is provided with four circle the second sleeves 32 on top board, and second
The diameter of sleeve is more than the diameter of the first sleeve, and the second sleeve and the first sleeve coordinate, and two sleeves it
Between be attached by the second shear pin 35, form a kind of temporary transient annexation.Top board 10 is arranged
There is the groove 36 corresponding with lead, and between this groove and lead, formation is slidably matched.
Multiple second c-type mild steel that is axially provided with between top board 10 and upper bracket plate 3 damps structure
Part 82, the size being smaller in size than the first c-type mild steel damping member of the second c-type mild steel damping member 82, the
Two c-type mild steel damping member quantity are more, and one group is grouping use two-by-two, forms preferable damping effect.
After using the bearing of the present invention at the movable pier of continuous bridge, under normal usage, shear pin is not
Destroying, bearing only can prolong along bridge to slip, and sliding speed is very slow, and speed lockup's device is not had an effect,
Do not affect the normal slip of bearing, now meet continuous bridge design requirement under normal usage.
Under E1 geological process, bearing sliding speed, the suitable bridge of bearing is locked by speed to slip behavior
Determining device to pin, and have preliminary shock-absorbing capacity, but earthquake intensity is little, shear pin does not destroys,
First c-type mild steel damping member is inoperative, and now movable pier relies on self-strength and anchor block shared
Seismic force, E1 earthquake intensity is little, after seismic force is distributed to anchor block and each movable pier shared, each pier
Rely on self-strength can meet shockproof requirements, with reference to Fig. 4.
Under E2 geological process, bearing sliding speed quickly, locked by speed to slip behavior by the suitable bridge of bearing
Determining device to pin, simultaneously because earthquake intensity is big, shear pin is cut off, the first c-type mild steel of bearing both sides
Damping member starts the power consumption that deforms, and with reference to Fig. 5, concurs with speed locking device, now movable
Pier undertakes seismic force and the seismic energy that can effectively dissipate incessantly, with the Ductility Design of anchor block or subtract shock insulation and set
Geological process resisted jointly by meter, makes structure meet shockproof requirements.Compared with anchor block alone bear geological process,
After using the bearing of the present invention, seismic force can be distributed at movable pier under E1, E2 geological process, and make
Resist geological process by different compound modes, it is ensured that structural safety, make structure design more reasonable simultaneously,
Save construction cost and reduced design difficulty.
The bearing of the present invention is based on one-way movable pot bearing, by less structural change, increases speed
Degree locking device, shear pin and the first c-type mild steel damping member, it is achieved each portion under varying strength geological process
Part plays a role successively by foregoing invention.
Embodiment two
It is similarly modified and is also applicable to other types one-way movable support (such as one-way movable ball shaped steel bearing, ginseng
Examine 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 uses hemispherical arc, and arrange tetrafluoro in the both sides up and down of hemispherical arc 4 ' sliding
Plate 6 ".
Preferably, the lower surface of above-mentioned hemispherical arc is spherical, and upper surface is plane.Upper surface is
It is smooth that plane can ensure that in glide direction.
Embodiment described above is only to be described the preferred embodiment of the present invention, not to this
Bright scope is defined, on the premise of designing spirit without departing from the present invention, and relevant technical staff in the field
Various deformation and improvement to the present invention, all should expand in protection domain as determined by claims of the present invention.
Claims (5)
1. classification antidetonation, a vibration absorption and isolation support, including one-way movable support, the first c-type mild steel damping
Component and speed locking device, described one-way movable support include being sequentially overlapped from bottom to top setting base plate,
Lower support plate, wear-resisting slide assemblies, upper bracket plate, disk spring assembly and top board, it is characterised in that
It is fixed by shear pin between described base plate and lower support plate；And in base plate and the side of lower support plate
Face is respectively provided with a pair first c-type mild steel damping members, one end of every pair of first c-type mild steel damping member that
This overlaps and is hinged on the middle part of undersetting, and other end is respectively hinged on base plate；
The surrounding of square described upper bracket plate is provided with four baffle plates, the baffle plate that one pair of which is oppositely arranged with
It is attached by a pair speed locking device between lower support plate extension, the baffle plate of another pair of opposing
Coordinate with forming slide-and-guide between lower support plate；
Upper surface at upper bracket plate is provided with four circle the first sleeves, fixing in each first sleeve
One lead is installed, the space between lead and the first sleeve is equipped with disk spring assembly, institute
State disk spring assembly to be formed by stacking by multi-disc, top board is provided with four circle the second sleeves, the
The diameter of two sleeves is more than the diameter of the first sleeve, and the second sleeve and the first sleeve coordinate, and at two sleeves
Between be fixed by the second shear pin, top board is provided with the groove corresponding with lead, and this is recessed
Formed between groove and lead and be slidably matched；Multiple axially it is provided with between top board and upper bracket plate
Two c-type mild steel damping members.
A kind of classification antidetonation, vibration absorption and isolation support the most according to claim 1, it is characterised in that
Described baseplate underside is provided with anchor structure, is provided with anchor structure on the upside of top board.
A kind of classification antidetonation, vibration absorption and isolation support the most according to claim 1, it is characterised in that institute
State wear-resisting slide assemblies and include rubber slab superposed on one another and steel liner plate, wherein between steel liner plate and upper bracket plate
Join to be incorporated at cooperation and tetrafluoro slide plate is set, join between described rubber slab and lower support plate to be incorporated at cooperation and set
Put tetrafluoro slide plate.
A kind of classification antidetonation, vibration absorption and isolation support the most according to claim 1, it is characterised in that institute
State wear-resisting slide assemblies and include that hemispherical arc and tetrafluoro slide plate, the lower surface of described hemispherical arc are
Spherical and form spherical cooperation by tetrafluoro slide plate with lower support plate, the upper surface of described hemispherical arc is
Plane is also coordinated with upper bracket plate formation plane by tetrafluoro slide plate.
A kind of classification antidetonation, vibration absorption and isolation support the most according to claim 1, it is characterised in that on
Stating speed locking device is 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 |
|---|---|
| CN105951584A true CN105951584A (en) | 2016-09-21 |
| CN105951584B CN105951584B (en) | 2017-08-08 |
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| CN201610444219.XA Active CN105951584B (en) | 2016-06-20 | 2016-06-20 | One kind classification antidetonation, vibration absorption and isolation support |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106436561A (en) * | 2016-10-28 | 2017-02-22 | 中交柏嘉工程技术研究院有限公司 | Equal rigid arm speed locking seismic isolation bearing |
| CN109811640A (en) * | 2019-02-20 | 2019-05-28 | 广州大学 | A kind of two-stage buffer limit earthquake isolating equipment |
| CN109898408A (en) * | 2019-03-15 | 2019-06-18 | 吴磊 | A kind of combined bridge antidetonation noise reduction support |
| CN110468695A (en) * | 2019-08-27 | 2019-11-19 | 天津大学 | Variation rigidity three-dimensional isolation method and apparatus |
| CN112411365A (en) * | 2020-12-22 | 2021-02-26 | 重庆交通大学 | Universal anti-seismic support with combined partition, damper and lock |
| CN114837068A (en) * | 2022-05-30 | 2022-08-02 | 胡雷锋 | Acceleration locking type bridge buffering limiting part |
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| CN105484153A (en) * | 2016-01-22 | 2016-04-13 | 石家庄铁道大学 | Seismic mitigation and isolation bearing adopting tension-compression energy dissipation characteristic of high-damping rubber and easy to repair and preparation method of seismic mitigation and isolation bearing |
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| CN106436561A (en) * | 2016-10-28 | 2017-02-22 | 中交柏嘉工程技术研究院有限公司 | Equal rigid arm speed locking seismic isolation bearing |
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| CN109811640A (en) * | 2019-02-20 | 2019-05-28 | 广州大学 | A kind of two-stage buffer limit earthquake isolating equipment |
| CN109898408A (en) * | 2019-03-15 | 2019-06-18 | 吴磊 | A kind of combined bridge antidetonation noise reduction support |
| CN110468695A (en) * | 2019-08-27 | 2019-11-19 | 天津大学 | Variation rigidity three-dimensional isolation method and apparatus |
| CN112411365A (en) * | 2020-12-22 | 2021-02-26 | 重庆交通大学 | Universal anti-seismic support with combined partition, damper and lock |
| CN114837068A (en) * | 2022-05-30 | 2022-08-02 | 胡雷锋 | Acceleration locking type bridge buffering limiting part |
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|---|---|
| CN105951584B (en) | 2017-08-08 |
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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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