CN104805764B - Bidirectionally limited one-way movable basin type rubber - Google Patents
Bidirectionally limited one-way movable basin type rubber Download PDFInfo
- Publication number
- CN104805764B CN104805764B CN201510224604.9A CN201510224604A CN104805764B CN 104805764 B CN104805764 B CN 104805764B CN 201510224604 A CN201510224604 A CN 201510224604A CN 104805764 B CN104805764 B CN 104805764B
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- China
- Prior art keywords
- door
- basin
- limited rack
- font position
- way movable
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- 210000001364 Upper Extremity Anatomy 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 25
- 239000010959 steel Substances 0.000 claims description 25
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 238000005493 welding type Methods 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 3
- 230000000875 corresponding Effects 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000011068 load Methods 0.000 description 9
- 239000004033 plastic Substances 0.000 description 4
- 230000035939 shock Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004642 transportation engineering Methods 0.000 description 2
- 230000002457 bidirectional Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009114 investigational therapy Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
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
- E01D19/047—Pot bearings
Abstract
The invention discloses a kind of bidirectionally limited one-way movable basin type rubber, including one-way movable basin type rubber, be characterized in: two sides, inactive side of the top board of 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 fixing connects end basin extension plate, and the end upper surface of basin extension plate is screwed " door " font position-limited rack; Column type block is positioned at " door " font position-limited rack, and the upper limb of column type block contacts with the crossbeam of " door " font position-limited rack, and the interval between two root posts of column type block and " door " font position-limited rack is 50-300mm. This bearing have under geological process constraint roof movement to over-large displacement and the effect of top board displacement straight up, it is possible to realize the bridge common stress of each bridge pier, give full play to the anti-seismic performance of each bridge pier; And this bearing continues to use now backed production technology and mounting technique, it is simple to the reparation of engineer applied and earthquake rear support.
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, due to reasons such as temperature, can produce flexible at work and rotate, and bridge pad is by suitable structure, it is possible to eliminates the bridge pier restriction to the above-mentioned deformation of girder, enables girder freely to stretch and to rotate.
Bridge pad can be divided three classes according to its kinetic characteristic, and one is hold-down support, 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 direction; 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, bears girder horizontal loading, and adapts to girder stretching along bridge length direction; Three is bidirectional sliding support, and this type of bearing is except rotating function, moreover it is possible to slide in bridge length direction and width x length direction. Bridge pad can be divided into bridle iron and rubber support two class according to material, and the bearing of current China is based on rubber support, and wherein one-way pot type rubber support is one of the most commonly used bearing.
The main lateral steel bar by middle steel plate fixing successively on the rubber slab on end basin, end basin, rubber slab, tetrafluoro plate, the rustless steel slide plate being fixed on upper plate, top board and the inactive side of top board two of one-way movable basin type rubber forms. Top board and girder are fixed by anchor bolt, and end basin is fixed by anchor bolt and bridge pier. This rubber support can pass through rubber slab to be had the character feature of fluid under triaxial stress state and realizes the rotation of bridge main beam; Rely on the low-friction coefficient between tetrafluoro plate and rustless steel slide plate to realize the girder displacement along bridge length direction (movable to) simultaneously, the power along bridge length direction that rubber support bears is made no longer to be undertaken completely by rubber slab, and the sliding that indirect action is between tetrafluoro plate and rustless steel slide plate. It addition, the lateral steel bar of the inactive side of top board two limits the girder motion along bridge width direction (non-live trend).
One-way movable support often with hold-down support with the use of, in simply supported girder bridge, one end of girder adopts hold-down support, other end employing one-way movable support; And only arrange hold-down support at a bridge pier in continuous bridge, one-way movable support all arranged by all the other bridge piers, hold-down support retrain the horizontal displacement of bridge main beam, bears girder horizontal loading, movable bearing support adapt to the flexible of girder.
Under seismic loading, existing one-way movable pot bearing is merely able to the horizontal seismic force (3%-6% little by the friction transmission 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, earthquake easily occurs expendable over-large displacement, also without seismic energy dissipation function, the horizontal earthquake action overwhelming majority of bridge main beam is transferred to bridge pier by hold-down support, the Earthquake Internal Force adopting hold-down support bridge pier is made to want big far beyond other bridge piers, destroy and also want serious (see Wenchuan earthquake highway earthquake hazard investigation bridge compared with other bridge piers, People's Transportation Press, 2012.3, ISBN978-7-114-09590-0), 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, it is likely between top board and tetrafluoro plate depart from, cause seat empty, destroy and (investigate bridge see Wenchuan earthquake highway earthquake hazard, People's Transportation Press, 2012.3, ISBN978-7-114-09590-0).
Summary of the invention
It is an object of the invention to provide a kind of have under geological process constraint roof movement to over-large displacement and top board displacement straight up, it is possible to realize the bridge common stress of each bridge pier, give full play to the one-way movable basin type rubber of the anti-seismic performance of each bridge pier. This bearing can continue to use production technology and the mounting technique of existing one-way movable basin type rubber, it is simple to engineer applied, it is simple 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, including one-way movable basin type rubber, it is structurally characterized in that: 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 fixing connects end basin extension plate, and the end upper surface of basin extension plate is screwed " 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)).
The operation 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 column type block and two columns of " door " font position-limited rack is suitable for the deformation that girder causes due to variations in temperature or common external force.
When running into earthquake, under seismic loading, the girder quantity of motion of bridge is more 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, restriction top board displacement, the geological process of girder is transferred to by column type block the column of " door " font position-limited rack, and pass to seat bottom basin and a bridge pier successively by the column of " door " font position-limited rack, it is achieved the bridge pier that one-way movable support is set and the bridge pier shared girder seismic force that hold-down support is set. And after column type block, the column of " door " font position-limited rack and crossbeam produce plastic deformation, the part kinetic energy of girder can be converted into the heat energy of column type block, " door " font position-limited rack, thus the seismic energy that dissipates, increase bearing damping.
Under excessive Vertical Seismic Load effect, contacting between column type block upper limb with " door " font position-limited rack crossbeam, it is possible to constraint top board vertical displacement, make bearing have the ability bearing 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, it is simple 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 hold-down support is undertaken earthquake load, become all bridge piers and share earthquake load, having given full play to the shock resistance of all bridge piers, the shock resistance of whole bridge is largely increased.
Three, under earthquake load, the part kinetic energy of girder can be converted into the heat energy of column type block, " door " font position-limited rack after producing plastic deformation by column type block, the column of " door " font position-limited rack and crossbeam, thus the seismic energy that dissipates.
Four, meet after earthquake, only need to change the column type block producing plastic deformation and " door " font position-limited rack, the reparation of bearing can be realized, it is simple 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: the upper half circular arc of column type block is with Type of Welding external application curved stainless steel thin plate, and tetrafluoro plate is posted in the lower flange of the crossbeam of " door " font position-limited rack; Described stainless sheet steel and tetrafluoro plate constitute friction pair.
So, the friction pair being made up of corrosion resistant plate and tetrafluoro plate, the frictional force between column type block and " door " font position-limited rack crossbeam can be reduced, adapt to girder and stretch.
Further, the end of the present invention basin is fixed the concrete mode being connected and is with end basin extension plate: end basin and end basin extension plate are welded to connect, or end basin is constituted with end basin extension plate one piece casting.
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 inserted crossbeam and the column of channel-section steel hole and connecting hole connection " door " font position-limited rack by steel axle.
Such structure is easy to install in the fabrication process the crossbeam of " door " font position-limited rack, and in earthquake, only the column of " door " font position-limited rack can produce plastic deformation, can only change column, it is not necessary to change crossbeam, has saved maintenance cost after shaking.
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 represents the non-live trend of one-way movable basin type rubber.
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, including one-way movable basin type rubber 1, it is structurally 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 fixing connects end basin extension plate 3, and the upper surface of end basin extension plate 3 is screwed " 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 column type block 2 and two root posts 5.2 of " door " font position-limited rack 5 is 50-300mm.
The concrete mode that the upper limb of column type block described in this example 2 contacts with the crossbeam 5.1 of " door " font position-limited rack 5 is: the upper half circular arc of column type block 2 is with Type of Welding external application curved stainless steel thin plate 2.1, and tetrafluoro plate 5.3 is posted in the lower flange of the crossbeam 5.1 of " door " font position-limited rack 5; Described stainless sheet steel 2.1 and tetrafluoro plate 5.3 constitute friction pair.
The upper half circular arc of described column type block 2 is with Type of Welding external application curved stainless steel thin plate 2.1; The friction pair that tetrafluoro plate 5.3, stainless sheet steel 2.1 and tetrafluoro plate 5.3 are constituted is posted in the lower flange of " door " font position-limited rack crossbeam 5.1.
The concrete mode being connected is fixed, with end basin extension plate 3, in end basin described in this example 1.2: end basin 1.2 and end basin extension plate 3 are welded to connect, or end basin 1.2 is constituted with end basin extension plate 3 one piece casting.
Fig. 4 illustrates, the concrete structure of " door " font position-limited rack described in this example 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 inserted crossbeam 5.1 and the column 5.2 of channel-section steel hole and connecting hole connection " door " font position-limited rack 5 by steel axle.
During installation, the present invention fixes with top board 1.1 by being embedded in the anchor bolt of girder in advance, fixes with end basin 1.2 by being embedded in the anchor bolt of bridge pier in advance. Under geological process, when girder displacement is more than the interval between the column 5.2 of column type block 2 and " door " font position-limited rack 5, " door " font position-limited rack column 5 retrains girder displacement, and makes the common stress of multiple bridge pier; Under excessive Vertical Seismic Load effect, contacting between column type block 2 upper limb with " door " font position-limited rack 5 crossbeam 5.1, it is possible to constraint top board 1.1 vertical displacement, make one-way movable basin type rubber 1 have the ability bearing vertical tension.
Claims (4)
1. a bidirectionally limited one-way movable basin type rubber, including one-way movable basin type rubber (1), it is characterised 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 fixing connects end basin extension plate (3), and the upper surface at end basin extension plate (3) is screwed " 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: the upper half circular arc of column type block (2) is with Type of Welding external application curved stainless steel thin plate (2.1), and tetrafluoro plate (5.3) is posted in the lower flange of the crossbeam (5.1) of " door " font position-limited rack (5);Described stainless sheet steel (2.1) and tetrafluoro plate (5.3) constitute friction pair.
3. the bidirectionally limited one-way movable basin type rubber of one according to claim 1, it is characterized in that: basin of the described end (1.2) is fixed, with end basin extension plate (3), the concrete mode being connected and is: end basin (1.2) and end basin extension plate (3) are welded to connect, or end basin (1.2) is constituted with end basin extension plate (3) one piece casting.
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, crossbeam (5.1) and the column (5.2) of channel-section steel hole and connecting hole connection " door " font position-limited rack (5) is inserted by steel axle.
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 |
|---|---|
| CN104805764A CN104805764A (en) | 2015-07-29 |
| CN104805764B true CN104805764B (en) | 2016-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869019B (en) * | 2017-04-26 | 2018-08-03 | 河北省衡水黄河工程橡塑有限公司 | A kind of highway bridge pot rubber bearing unidirectionally moved |
| 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 |
| CN113605244B (en) * | 2021-08-11 | 2023-03-17 | 长安大学 | Support connecting device suitable for self-anchored suspension bridge and tower beam displacement adaptation method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001295499A (en) * | 2000-04-17 | 2001-10-26 | Oiles Ind Co Ltd | Base isolation mechanism for structure |
| 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 |
| JP4357525B2 (en) * | 2006-08-25 | 2009-11-04 | ショーボンド建設株式会社 | Movement restriction device |
| KR100874463B1 (en) * | 2008-04-10 | 2008-12-18 | (주)신흥이앤지 | Movable end structure of pedestrian bridge |
| CN202227260U (en) * | 2011-09-06 | 2012-05-23 | 同济大学 | Self-resetting shock attenuation bearing with external elastic resetting device |
| CN203320404U (en) * | 2013-05-23 | 2013-12-04 | 中南大学 | Plate-type rubber support |
| CN203741993U (en) * | 2014-03-11 | 2014-07-30 | 株洲时代新材料科技股份有限公司 | Friction pendulum type seismic isolation support provided with anti-drawing devices |
| 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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2015
- 2015-05-06 CN CN201510224604.9A patent/CN104805764B/en not_active Expired - Fee Related
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| CN104805764A (en) | 2015-07-29 |
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Granted publication date: 20160615 Termination date: 20190506 |