CN104805764A - Bidirectional-limiting unidirectional-movement basin-type rubber support - Google Patents
Bidirectional-limiting unidirectional-movement basin-type rubber support Download PDFInfo
- Publication number
- CN104805764A CN104805764A CN201510224604.9A CN201510224604A CN104805764A CN 104805764 A CN104805764 A CN 104805764A CN 201510224604 A CN201510224604 A CN 201510224604A CN 104805764 A CN104805764 A CN 104805764A
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- Prior art keywords
- basin
- door
- limited rack
- type rubber
- font position
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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
- E01D19/047—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 a bidirectional-limiting unidirectional-movement basin-type rubber support, comprising a unidirectional-movement basin-type rubber support; the bidirectional-limiting unidirectional-movement basin-type rubber support is characterized in that cylindrical baffle plates are fixed on side faces of the two non-movable sides of a top plate of the unidirectional-movement basin-type rubber support in a welding manner; each of the two non-movable sides of a bottom basin of the unidirectional-movement basin-type rubber support is fixedly connected with a bottom basin extension plate; a door-shaped limiting frame is fixed on the upper surface of each of the bottom basin extension plates in a threaded manner; the cylindrical baffle plates are located in the door-shaped limiting frames; the upper edges of the cylindrical baffle plates contact beams of the door-shaped limiting frames; distances between the cylindrical baffle plates and two upright posts of the door-shaped limiting frames all are 50 to 300mm. The support, under the earthquake action, has the effect of restricting an over-displacement of the top plate at a movement direction and a vertical-up displacement of the top plate; the support can realize that each pier of a bridge is stressed jointly and the earthquake resistance performance of each pier can be brought into full play; meanwhile, the support follows the production technology and the installation technology of the current support so that the support can be repaired conveniently after engineering application and earthquake.
Description
Technical field
The present invention relates to a kind of bridge one-way movable basin type rubber, belong to civil construction field.
Background technology
Bearing is the functional part connecting bridge main beam and bridge pier.The girder of bridge is due to reasons such as temperature, and can produce flexible at work and rotate, bridge pad, by suitable structure, can be eliminated the restriction of bridge pier to the above-mentioned distortion of girder, enable girder free-extension and rotation.
Bridge pad can be divided three classes according to its kinetic characteristic, and one is fixed bearing, and this type of bearing can only meet the needs that bridge main beam rotates, and all can not slide in girder length and width; Two is one-way movable support, and this type of bearing, except rotating function, also can limit the displacement along bridge width direction of bridge main beam, bear girder horizontal loading, and adapts to girder stretching along bridge length direction; Three is bidirectional sliding support, and this type of bearing, except rotating function, can also slide in bridge length direction and width x length direction.Bridge pad can be divided into steel support and neoprene bearing two class according to material, and the bearing of current China is based on neoprene bearing, and wherein one-way pot type neoprene bearing is one of bearing commonly used the most.
Side direction steel bar primarily of middle steel plate fixing successively on the rubber tile on end basin, end basin, rubber tile, tetrafluoro plate, the inactive side of stainless steel slide plate, top board and top board two be fixed on the upper plate composition of one-way movable basin type rubber.Top board and girder are fixed by anchor bolt, and end basin is fixed by anchor bolt and bridge pier.This neoprene bearing realizes the rotation of bridge main beam by the character feature that rubber tile has a fluid under triaxial stress state; Rely on the low-friction coefficient between tetrafluoro plate and stainless steel slide plate to realize the displacement of girder along bridge length direction (movable to) simultaneously, the power along bridge length direction that neoprene bearing is born no longer is born completely by rubber tile, and the slippage of indirectly-acting between tetrafluoro plate and stainless steel slide plate.In addition, the side direction steel bar restriction girder of the inactive side of top board two is along the motion of bridge width direction (inactive to).
One-way movable support normal with fixed bearing with the use of, in simply supported girder bridge, one end of girder adopts fixed bearing, other end employing one-way movable support; And only fixed bearing is arranged at a bridge pier in continuous girder bridge, one-way movable support all arranged by all the other bridge piers, retrained the horizontal movement of bridge main beam by fixed bearing, bears girder horizontal loading, adapts to the flexible of girder by freely movable bearing.
Under seismic loading, existing one-way movable pot bearing is merely able to transmit little horizontal seismic force (3%-6% by the friction between tetrafluoro plate and corrosion resistant plate, see People's Republic of China's traffic industry standard, " highway bridge pot rubber bearing " (JT/T391-2009)), activity limits to displacement without special arrangement, easily expendable over-large displacement is there is in earthquake, also without seismic energy dissipation function, the horizontal earthquake action overwhelming majority of bridge main beam is passed to bridge pier by fixed bearing, make to adopt the Earthquake Internal Force of fixed bearing bridge pier to want large far beyond other bridge piers, destroy also comparatively other bridge piers want serious (investigate see Wenchuan earthquake highway earthquake hazard---bridge, People's Transportation Press, 2012.3, ISBN 978-7-114-09590-0), the shock resistance of each bridge pier in bridge can not be given full play to.
And existing pot rubber bearing can only bear vertical pressure, vertical tension can not be born, under excessive Vertical Earthquake Loads, may depart between top board and tetrafluoro plate, cause seat empty, destruction (investigate see Wenchuan earthquake highway earthquake hazard---bridge, People's Transportation Press, 2012.3, ISBN 978-7-114-09590-0).
Summary of the invention
Object of the present invention provide a kind of have under geological process constraint roof movement to over-large displacement and top board displacement straight up, each bridge pier of bridge stressed, the one-way movable basin type rubber that gives full play to the anti-seismic performance of each bridge pier jointly can be realized.This bearing can continue to use production technology and the mounting technique of existing one-way movable basin type rubber, is convenient to engineer applied, is convenient to the reparation of earthquake rear support.
The present invention realizes the technical scheme that its goal of the invention adopts: a kind of bidirectionally limited one-way movable basin type rubber, comprise one-way movable basin type rubber, its design feature is: two sides, inactive side of the top board of described one-way movable basin type rubber are welded and fixed column type block; Two inactive sides of the end basin of one-way movable basin type rubber are fixedly connected with end basin extension plate, and the upper surface screw thread of end basin extension plate fixes " door " font position-limited rack; Column type block is positioned at " door " font position-limited rack, the upper limb of column type block contacts with the crossbeam of " door " font position-limited rack, interval between two root posts of column type block and " door " font position-limited rack is 50-300mm (People's Republic of China's traffic industry standard, the allowable displacement of the dimension bearing of regulation in " highway bridge pot rubber bearing " (JT/T391-2009)).
Operating principle of the present invention is:
When variations in temperature or under common External Force Acting, the girder of bridge drives one-way movable basin type rubber movement of roof, column type block will move with top board, and the interval between two columns of column type block and " door " font position-limited rack can adapt to the distortion that girder causes due to variations in temperature or common external force.
When running into earthquake, under seismic loading, the girder amount of exercise of bridge is greater than the interval between the column of column type block and " door " font position-limited rack, column type block contacts with the column of " door " font position-limited rack, the displacement of restriction top board, the geological process of girder is passed to the column of " door " font position-limited rack by column type block, and pass to basin at the bottom of bearing and bridge pier successively by the column of " door " font position-limited rack, realize arranging the bridge pier of one-way movable support and arranging the bridge pier shared girder seismic forces of fixed bearing.And when after the column and crossbeam generation plastic strain of column type block, " door " font position-limited rack, can be the heat energy of column type block, " door " font position-limited rack by the part kinetic transformation of girder, thus dissipation seismic energy, increase bearing damping.
Under excessive Vertical Seismic Load effect, the contact between column type block upper limb and " door " font position-limited rack crossbeam, can retrain top board vertical displacement, bearing is had bear the ability of vertical tension.
Compared with prior art, the invention has the beneficial effects as follows:
One, the present invention can continue to use production technology and the mounting technique of existing one-way movable basin type rubber, is convenient to engineer applied.
Two, on the basis that existing pot rubber bearing constructs, set up cylindrical blocks and " door " font position-limited rack, the vertical displacement of restriction bearing top board, with limit one-way movable support along movable to over-large displacement, and the geological process of bridge main beam is passed to the bridge pier arranging one-way movable support, the bridge pier of original single fixed bearing is born seismic load, become all bridge piers and share seismic load, given full play to the shock resistance of all bridge piers, the shock resistance of whole bridge is largely increased.
Three, under seismic load, after the column of column type block, " door " font position-limited rack and crossbeam produce plastic strain, can be the heat energy of column type block, " door " font position-limited rack by the part kinetic transformation of girder, thus dissipation seismic energy.
Four, meet after earthquake, only need change generation plastic strain column type block and " door " font position-limited rack, the reparation of bearing can be realized, be convenient to the reparation of earthquake rear support, reduce cost, improve efficiency.
Further, the concrete mode that the upper limb of column type block of the present invention contacts with the crossbeam of " door " font position-limited rack is: first circular arc of column type block pastes curved stainless steel thin plate outward with Type of Welding, and tetrafluoro plate is posted in the bottom flange of the crossbeam of " door " font position-limited rack; Described stainless sheet steel and tetrafluoro plate form friction pair.
Like this, the friction pair be made up of corrosion resistant plate and tetrafluoro plate, can reduce the frictional force between column type block and " door " font position-limited rack crossbeam, adapts to girder and stretches.
Further, the concrete mode that the end of the present invention basin is fixedly connected with end basin extension plate is: end basin and end basin extension plate are welded to connect, or end basin and end basin extension plate monoblock cast are formed.
Such fixed form is simple, and cost is low, sound construction, and makes the present invention can by the production technology of existing one-way movable basin type rubber and mounting technique.
Further, the concrete structure of " door " of the present invention font position-limited rack is: be welded with triangle connecting plate inside the column upper end of " door " font position-limited rack, the crossbeam of " door " font position-limited rack is made up of two opposing double flute steel being clamped in triangle connecting plate both sides, connecting hole is had in the middle of triangle connecting plate, the double flute steel of both sides all has the channel-section steel hole corresponding with connecting hole, is connected crossbeam and the column of " door " font position-limited rack by steel axle insertion channel-section steel hole with connecting hole.
Such structure is convenient to the crossbeam installing " door " font position-limited rack in the fabrication process, and in earthquake, only the column of " door " font position-limited rack can produce plastic strain, only can change column, without the need to changing crossbeam, has saved the rear maintenance cost of shake.
Below in conjunction with the drawings and specific embodiments, the present invention is further illustrated.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention three-dimensional structure schematic diagram.
In figure, a represent the activity of one-way movable basin type rubber to, b represent one-way movable basin type rubber inactive to.
Fig. 2 is that the embodiment of the present invention faces structural representation.
Fig. 3 is embodiment of the present invention side-looking structural representation.
Fig. 4 is " door " font position-limited rack column, crossbeam scheme of installation.
Detailed description of the invention
Embodiment
Fig. 1, Fig. 2 and Fig. 3 illustrate, a kind of detailed description of the invention of the present invention is: a kind of bidirectionally limited one-way movable basin type rubber, comprise one-way movable basin type rubber 1, its design feature is: two sides, inactive side of the top board 1.1 of described one-way movable basin type rubber 1 are welded and fixed column type block 2; Two inactive sides of the end basin 1.2 of one-way movable basin type rubber 1 are fixedly connected with end basin extension plate 3, and the upper surface screw thread of end basin extension plate 3 fixes " door " font position-limited rack 5; Column type block 2 is positioned at " door " font position-limited rack 5, and the upper limb of column type block 2 contacts with the crossbeam 5.1 of " door " font position-limited rack 5, and the interval between two root posts 5.2 of column type block 2 and " door " font position-limited rack 5 is 50-300mm.
The concrete mode that the upper limb of the block of column type described in this example 2 contacts with the crossbeam 5.1 of " door " font position-limited rack 5 is: first circular arc of column type block 2 pastes curved stainless steel thin plate 2.1 outward with Type of Welding, and tetrafluoro plate 5.3 is posted in the bottom flange of the crossbeam 5.1 of " door " font position-limited rack 5; Described stainless sheet steel 2.1 and tetrafluoro plate 5.3 form friction pair.
First circular arc of described column type block 3 pastes curved stainless steel thin plate 3.1 outward with Type of Welding; Tetrafluoro plate 5.3 is posted in the bottom flange of " door " font position-limited rack crossbeam 5.1, the friction pair that stainless sheet steel 3.1 and tetrafluoro plate 5.3 are formed.
The concrete mode that the basin of the end described in this example 1.2 is fixedly connected with end basin extension plate 3 is: end basin 1.2 and end basin extension plate 3 are welded to connect, or end basin 1.2 is formed with end basin extension plate 3 monoblock cast.
Fig. 4 illustrates, the concrete structure of " door " described in this example font position-limited rack 5 is: be welded with triangle connecting plate 5.4 inside column 5.2 upper end of " door " font position-limited rack 5, the crossbeam 5.1 of " door " font position-limited rack 5 is made up of two opposing double flute steel being clamped in triangle connecting plate 5.4 both sides, connecting hole is had in the middle of triangle connecting plate 5.4, the double flute steel of both sides all has the channel-section steel hole corresponding with connecting hole, is connected crossbeam 5.1 and the column 5.2 of " door " font position-limited rack 5 by steel axle insertion channel-section steel hole with connecting hole.
During installation, the present invention is fixed by the anchor bolt and top board 1.1 being embedded in girder in advance, is fixed by the anchor bolt and end basin 1.2 being embedded in bridge pier in advance.Under geological process, during interval when between the column 5.2 that girder displacement is greater than column type block 2 and " door " font position-limited rack 5, " door " font position-limited rack column 5 retrains girder displacement, and makes multiple bridge pier jointly stressed; Under excessive Vertical Seismic Load effect, the contact between column type block 2 upper limb and " door " font position-limited rack 5 crossbeam 5.1, can retrain top board 1.1 vertical displacement, make one-way movable basin type rubber 1 have the ability of bearing vertical tension.
Claims (4)
1. a bidirectionally limited one-way movable basin type rubber, comprise one-way movable basin type rubber (1), it is characterized in that: two sides, inactive side of the top board (1.1) of described one-way movable basin type rubber (1) are welded and fixed column type block (2); Two inactive sides of the end basin (1.2) of one-way movable basin type rubber (1) are fixedly connected with end basin extension plate (3), and the upper surface screw thread at end basin extension plate (3) fixes " door " font position-limited rack (5); Column type block (2) is positioned at " door " font position-limited rack (5), the upper limb of column type block (2) contacts with the crossbeam (5.1) of " door " font position-limited rack (5), and the interval between two root posts (5.2) of column type block (2) and " door " font position-limited rack (5) is 50-300mm.
2. the bidirectionally limited one-way movable basin type rubber of one according to claim 1, it is characterized in that: the concrete mode that the upper limb of described column type block (2) contacts with the crossbeam (5.1) of " door " font position-limited rack (5) is: first circular arc of column type block (2) pastes curved stainless steel thin plate (2.1) outward with Type of Welding, tetrafluoro plate (5.3) is posted in the bottom flange of the crossbeam (5.1) of " door " font position-limited rack (5); Described stainless sheet steel (2.1) and tetrafluoro plate (5.3) form friction pair.
3. the bidirectionally limited one-way movable basin type rubber of one according to claim 1, it is characterized in that: the concrete mode that basin of the described end (1.2) was fixedly connected with end basin extension plate (3) is: end basin (1.2) and end basin extension plate (3) are welded to connect, or end basin (1.2) is formed with end basin extension plate (3) monoblock cast.
4. the bidirectionally limited one-way movable basin type rubber of one according to claim 1, it is characterized in that: the concrete structure of described " door " font position-limited rack (5) is: inside column (5.2) upper end of " door " font position-limited rack (5), be welded with triangle connecting plate (5.4), the crossbeam (5.1) of " door " font position-limited rack (5) is made up of two opposing double flute steel being clamped in triangle connecting plate (5.4) both sides, connecting hole is had in the middle of triangle connecting plate (5.4), the double flute steel of both sides all has the channel-section steel hole corresponding with connecting hole, be connected crossbeam (5.1) and the column (5.2) of " door " font position-limited rack (5) with connecting hole by steel axle insertion channel-section steel hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510224604.9A CN104805764B (en) | 2015-05-06 | 2015-05-06 | Bidirectionally limited one-way movable basin type rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510224604.9A CN104805764B (en) | 2015-05-06 | 2015-05-06 | Bidirectionally limited one-way movable basin type rubber |
Publications (2)
| Publication Number | Publication Date |
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| CN104805764A true CN104805764A (en) | 2015-07-29 |
| CN104805764B CN104805764B (en) | 2016-06-15 |
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| CN201510224604.9A Expired - Fee Related CN104805764B (en) | 2015-05-06 | 2015-05-06 | Bidirectionally limited one-way movable basin type rubber |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869019A (en) * | 2017-04-26 | 2017-06-20 | 刘丽 | A kind of highway bridge pot rubber bearing of unidirectional movement |
| CN107794839A (en) * | 2017-11-30 | 2018-03-13 | 中铁二院工程集团有限责任公司 | A kind of stopping means of vibration absorption and isolation support |
| CN108004915A (en) * | 2017-11-30 | 2018-05-08 | 中铁二院工程集团有限责任公司 | A kind of novel friction puts bearing |
| CN110205924A (en) * | 2019-05-10 | 2019-09-06 | 浙江秦山橡胶工程股份有限公司 | A kind of one-way pot type rubber support that safety is good |
| CN113047158A (en) * | 2021-02-07 | 2021-06-29 | 中铁四局集团有限公司 | Temporary limiting device for steel truss multidirectional movable support under action of high mountain valley wind load |
| CN113605244A (en) * | 2021-08-11 | 2021-11-05 | 长安大学 | Support connecting device suitable for self-anchored suspension bridge and tower beam displacement adapting method |
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| CN204676412U (en) * | 2015-05-06 | 2015-09-30 | 西南交通大学 | A kind of bidirectionally limited one-way movable basin type rubber |
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| CN1804222A (en) * | 2005-06-27 | 2006-07-19 | 上海材料研究所 | Method for avoiding pier damage and safety protection device therefor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869019A (en) * | 2017-04-26 | 2017-06-20 | 刘丽 | A kind of highway bridge pot rubber bearing of unidirectional movement |
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| CN108004915A (en) * | 2017-11-30 | 2018-05-08 | 中铁二院工程集团有限责任公司 | A kind of novel friction puts bearing |
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| CN110205924A (en) * | 2019-05-10 | 2019-09-06 | 浙江秦山橡胶工程股份有限公司 | A kind of one-way pot type rubber support that safety is good |
| CN110205924B (en) * | 2019-05-10 | 2024-01-30 | 浙江秦山橡胶工程股份有限公司 | Unidirectional basin-type rubber support with good safety |
| CN113047158A (en) * | 2021-02-07 | 2021-06-29 | 中铁四局集团有限公司 | Temporary limiting device for steel truss multidirectional movable support under action of high mountain valley wind load |
| CN113047158B (en) * | 2021-02-07 | 2023-02-24 | 中铁四局集团有限公司 | Temporary limiting device for steel truss multidirectional movable support under action of high mountain valley wind load |
| CN113605244A (en) * | 2021-08-11 | 2021-11-05 | 长安大学 | Support connecting device suitable for self-anchored suspension bridge and tower beam displacement adapting method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104805764B (en) | 2016-06-15 |
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