CN207700034U - A kind of direction across bridge taper leans on the anti-fall girder construction of ball buffering energy-absorbing Antivibration block - Google Patents
A kind of direction across bridge taper leans on the anti-fall girder construction of ball buffering energy-absorbing Antivibration block Download PDFInfo
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- CN207700034U CN207700034U CN201721679597.2U CN201721679597U CN207700034U CN 207700034 U CN207700034 U CN 207700034U CN 201721679597 U CN201721679597 U CN 201721679597U CN 207700034 U CN207700034 U CN 207700034U
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- block
- ball
- steelframe
- leans
- cone rubber
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Abstract
A kind of direction across bridge taper leans on the anti-fall girder construction of ball buffering energy-absorbing Antivibration block, including block block, cone rubber by ball, steelframe impingement baffle, thick china；Trapezoidal block block is arranged in pier top bent cap both upper ends thereof；Pier top bent cap top surface is provided with vibration absorption and isolation support, and beam body is supported on the vibration absorption and isolation support；Anchoring has the cone rubber of inner hollow to lean on ball on the inside of the trapezoidal block block at both ends, cone rubber is anchored by ball and steelframe impingement baffle, steelframe erosion control plate surface is provided with ultra high molecular polyethylene thick china, steelframe impingement baffle is limited by iron chains on trapezoidal block block, and cone rubber, which leans on, reserves certain distance between ball steelframe impingement baffle and beam body.The utility model structure has the advantages that simple structure, practicability are high, compatibility is strong, coordinability is good, at low cost, easy for construction.Can effectively avoid beam body local failure and anti-fall beam action, cone rubber is high by ball energy-absorbing, counter-force is low, it is not direct contacted with beam body, therefore there is ontology not wear, long lifespan.
Description
Technical field
The utility model belongs to bridge earthquake resistance technical field, and in particular to a kind of direction across bridge taper leans on ball buffering energy-absorbing antidetonation
The anti-fall girder construction of block.
Background technology
China is located at the intersection of circum-Pacific seismic belt and Eurasian earthquake zone, is the country of earthquake more than one, the ground in China
Shake earthquake has the characteristics that intensity is big, frequency is high, has a very wide distribution, and especially since the 1980s, China enters new
Earthquake Activity Periods, earthquake occurrence frequency significantly improves.China has built a large amount of highway bridge in recent years, once in earthquake
It destroys, this will cause greatly to lose, and cause greatly to threaten to the people's lives and property, restrict Chinese society economy
Development.China's violent earthquake several times also produces a large amount of bridge collapse, this construction of road and bridge structure to flourish to China
At serious potential threat.It is studied by investigation statistics, the destruction form of expression of the Bridges in Our Country in earthquake is mainly：Beam body and
Between bridge pier direction across bridge, along bridge to displacement it is excessive generation fall beam earthquake；The opposite collision of beam body is so that expansion joint at expansion joint
With beam body local damage, and collision effect is transmitted to the bridge pier abutment of lower part, it is caused to generate the damage of irrecoverability；Ground
Vertical displacement caused by seismic wave causes beam body to fall off with bearing and cause the dual damage of bearing and beam body.
At present the bridge in China in order to limit horizontal 9 bridges of top beam body to displacement, often both sides are arranged at the top of pier cap beam
Rigid reinforcement concrete block.It is that rigid collision is kept off if block rigidity is too small between ordinary reinforced concrete block and beam body
Block is easy to happen the damage of unrepairable；And when block rigidity is excessive, so that beam body local failure is occurred and by block and beam
Collision effect is transmitted at the expansion joint of top and is damaged at the bridge pier of lower part between body.
In order to overcome drawbacks described above, need to design and develop a kind of novel direction across bridge cone rubber anti-by ball buffering energy-absorbing
Shake the anti-fall girder construction of block.Can be effectively flexible impact the rigid collision buffering between block and beam body, and by pressing greatly
Compression deformation, which effectively absorbs seismic energy, prevents Earthquake damages.
Utility model content
Above-mentioned deficiency in view of the prior art and structurally, the utility model provide a kind of direction across bridge taper and are buffered by ball
The anti-fall girder construction of energy-absorbing Antivibration block.Relatively large displacement between direction across bridge beam body and bridge pier is limited, prevents bearing from damaging, is prevented
Only beam body falls beam earthquake, when bridge is by external drives such as earthquake, wind shakes, can effectively reduce the part damage of collision area
Badly and by cone rubber by ball effectively weaken effect of impact of the beam body to Antivibration block, and utilizes, suction big by ball compressive deformation
It receives the big characteristic of energy and effectively absorbs seismic energy, play anti-local damage and anti-fall beam action.
To achieve the above object, the technical solution of the utility model is, a kind of direction across bridge taper leans on ball buffering energy-absorbing antidetonation
The anti-fall girder construction of block, it is characterised in that：Including block block（3）, cone rubber is by ball（5）, steelframe impingement baffle（8）, veneer
Plate（7）；Trapezoidal block block（3）With pier top bent cap（1）To be uniformly integrally provided in pier top bent cap（1）Both upper ends thereof；Pier top lid
Beam（1）Top surface is provided with vibration absorption and isolation support（4）, beam body（2）It is supported in the vibration absorption and isolation support（4）On；Trapezoidal gear at both ends
Block block（3）Inside anchoring has the cone rubber of inner hollow to lean on ball（5）, cone rubber is by ball（5）With steelframe impingement baffle（8）Anchor
Gu steelframe impingement baffle（8）Surface is provided with ultra high molecular polyethylene thick china（7）, steelframe impingement baffle（8）Pass through iron chains（6）Limit
Position is in trapezoidal block block（3）On, cone rubber leans on ball（5）Steelframe impingement baffle（8）With beam body（2）Between reserve certain distance.
Further, the steelframe impingement baffle（8）Outside thick china（7）With beam body（2）Between optimal distance be 20mm-
80mm。
The cone rubber is constructed by the inside of ball for Inflatable hollow, and compression deformation is big, and energy-absorbing is big.Cone rubber leans on
The larger one side of ball is bottom surface, and with screw anchor on the inside of trapezoidal block block, smaller one side is upper bottom surface, is equipped with five spiral shells
Nail is anchored with steelframe impingement baffle, and central screw is slightly longer than peripheral four screws.
The cone rubber is being set as two, every end along bridge by ball to direction, and can be carried out with quantity by changing size
It adjusts, to meet the antidetonation needs of different bridge structures.
The block block is trapezoidal block block, and trapezoidal block block is located at pier top bent cap both upper ends thereof, trapezoidal block
Block is integral prefabricated with pier top bent cap.
Steelframe impingement baffle is arranged by ball forward position in the cone rubber, and beam body and steelframe impingement baffle are acted on to substantially reduce
The surface pressure of position of collision avoids the local damage phenomenon of beam body, impingement baffle size can be according to the size and antidetonation needs of beam body
Self-adjusting.
Further, ultra high molecular polyethylene (PE) thick china is installed before the impingement baffle, beam body and taper can be reduced
Rubber leans on the friction coefficient (0.2 or less) of ball, and cone rubber when Beam pounding is made to lean on the shearing force (horizontal force) of ball generation significantly
It reduces.
The iron chains is limited steelframe impingement baffle by steelframe impingement baffle and the bolt chain hole on the inside of trapezoidal block block, specifically
For both sides above and below steelframe impingement baffle, bolt chain hole corresponding with block block inside upper part is connected respectively.
Further, the cone rubber is that compressive deformation is big by the property of ball, and compression deformation is inhaled simultaneously up to 70%
It can be big with cushioning effect.
Above-mentioned method for arranging is further arranged symmetrically.
The utility model compared with prior art, has the advantages that.
（1）The utility model leans on ball crash energy absorption equipment due to being provided with cone rubber, and beam body is in cross under geological process
Bridge is subjected to displacement to direction, and cone rubber largely absorbs seismic energy by ball crash energy absorption equipment by compressive deformation occurs, and produces
Raw counter-force is small, and beam body local failure and anti-fall beam action are avoided to reach.
（2）Steelframe impingement baffle generally uses closed structure, and intensity is high, antiseptic property is good.It is installed before steelframe impingement baffle
Ultra high molecular polyethylene (PE) thick china, friction coefficient is small (0.2 or less), makes the shearing force (water generated by ball when Beam pounding
Flat power) it substantially reduces, to improve the service life that cone rubber leans on ball.
（3）Cone rubber is high by ball energy-absorbing, counter-force is low, it is not direct contacted with beam body, therefore there is ontology not wear, long lifespan
The advantages that.
（4）The structure has that simple structure, practicability are high, compatibility is strong, coordinability is good, at low cost, easy for construction etc.
Advantage.
Description of the drawings
Fig. 1 is the cross-bridges that a kind of direction across bridge cone rubber of the utility model leans on the anti-fall girder construction of ball buffering energy-absorbing Antivibration block
To cross-section diagram.
Fig. 2 is the Section A-A schematic diagram of Fig. 1.
Fig. 3 is enlarged diagram at the B of Fig. 1.
Fig. 4 is enlarged diagram at the C of Fig. 2.
Fig. 5 is the stereoscopic schematic diagram that cone rubber leans on ball.
Fig. 6 is the floor map that cone rubber leans on ball.
Fig. 7 is the floor map of steelframe impingement baffle.
In figure：1 is pier top bent cap, and 2 be beam body, and 3 be trapezoidal block block, and 4 be bearing, and 5 lean on ball for cone rubber, 6
It is thick china for iron chains, 7,8 be steelframe impingement baffle, and 9 be screw, and 10 be bolt chain hole, and 11 be screw through hole.
Specific implementation mode
The technique effect of the design of the utility model, detail and acquisition is described further below in conjunction with the accompanying drawings.
As shown in Figures 1 to 7, a kind of direction across bridge cone rubber of the utility model buffers the anti-fall girder construction of Antivibration block by ball
One specific embodiment, including cone rubber lean on ball（5）, steelframe impingement baffle（8）, thick china（7）, iron chains（6）, trapezoidal
Block block（3）.The bridge that the present embodiment is selected is prestressed concrete bridge, the bridge shock-proof check block structure and method for arranging
It is equally applicable to other bridge types such as steel bridge.
As shown in Figures 1 to 4, pier top bent cap（1）On be provided with bearing（4）, trapezoidal block block（3）It is arranged in pier top lid
Beam（1）Both sides, trapezoidal block block（3）Inside anchoring have cone rubber lean on ball（5）, cone rubber is by ball（5）With steelframe
Impingement baffle（8）Anchoring, iron chains（6）Connect steelframe impingement baffle（8）With trapezoidal block block（3）On bolt chain hole（10）, steelframe is anti-
Punching（8）Front is equipped with thick china（7）, thick china（7）With beam body（2）Between reserve a certain distance.
Specifically, the thick china（7）With beam body（2）Between optimal distance be 20mm-80mm.
As shown in Figure 3 to Figure 4, screw is first used（9）Pass through screw through hole（11）Cone rubber is leaned on into ball（5）Bottom surface
It is anchored in trapezoidal block block（3）Inside, by steelframe impingement baffle（8）Ball is leaned on cone rubber（5）Upper bottom surface pass through screw（9）
Anchoring, steelframe impingement baffle（8）Outside is installed by thick china（7）, then by iron chains（6）Pass through trapezoidal block block（3）With steelframe erosion control
Plate（8）On bolt chain hole（10）Connection.Cone rubber leans on ball（5）It is being set as two, every end to direction along bridge, and can be by changing
Become size to be adjusted with quantity, to meet the antidetonation needs of different bridge structures.
As shown in Figure 3 to Figure 4, thick china（7）Mounted on steelframe impingement baffle（8）Outside, thick china（7）It is poly- for supra polymer
Ethylene (PE) material can reduce the friction coefficient (0.2 or less) that beam body and cone rubber lean on ball, cone rubber when making Beam pounding
The shearing force (horizontal force) generated by ball substantially reduces.
As shown in Figure 3 to Figure 4, steelframe impingement baffle（8）The top and the bottom holes Shuan Lian（10）With trapezoidal block block（3）On inside
The bolt chain hole in portion（10）It is connected with iron chains（6）, steelframe impingement baffle（8）Upper and lower both sides respectively with trapezoidal block block（3）On inside
Portion corresponds to bolt chain hole（10）It is connected.
As shown in Figure 5 to Figure 6, cone rubber leans on ball（5）Upper bottom surface uses screw（9）Pass through screw through hole（11）Anchoring
In steelframe impingement baffle（8）, bottom surface use screw（9）Pass through screw through hole（11）It is anchored in trapezoidal block block（3）Inside.
Anchorage point can be adjusted according to actual conditions to meet needs.
As shown in fig. 7, steelframe impingement baffle（8）Inside constructs for grid type, and dash area shown in Fig. 7 is steelframe impingement baffle
（8）Ball is leaned on cone rubber（5）Anchor fitting part, bolt chain hole（10）Pass through iron chains（6）With trapezoidal block block（3）On bolt
Chain hole（10）It is connected, helps steelframe impingement baffle（8）Limit；Steelframe impingement baffle（8）On screw through hole（11）With taper rubber
Glue leans on ball（5）On screw（9）Anchoring.
The pier top bent cap（1）The trapezoidal block block of both upper ends thereof（3）Position, cone rubber lean on ball crash energy absorption equipment
The position of B is symmetrical arranged, left and right ends thick china（7）With beam body（2）Between distance controlling it is equal.
Specifically, the technical principle of above structure is when bridge is by geological process, beam body（2）There is cross under geological process
Bridge is to displacement, beam body at this time（2）With the trapezoidal block block in one end（3）The cone rubber of inside is by the B contacts of ball crash energy absorption equipment；
Beam body（2）Direction across bridge displacement constantly increases, and cone rubber leans on ball（5）It deforms upon and by crusherbull zone, is constantly inhaled in this process
Seismic energy is received, cone rubber leans on ball（5）Compressive deformation can reach 70%, can absorb a large amount of seismic energies；When the excessive taper of seismic energy
Rubber leans on ball（5）When reaching compressive deformation peak absorbance can be saturated, trapezoidal block block（3）The cone rubber after deformation will be passed through
Beam body is directly contradicted by ball crash energy absorption equipment B（2）And stop beam body（2）Displacement.Impact force is smaller at this time, this makees used
Journey can be good at protecting block, prevent trapezoidal block block（3）With beam body（2）Between local failure, and play girder falling
Effect.
Claims (9)
1. a kind of direction across bridge taper leans on the anti-fall girder construction of ball buffering energy-absorbing Antivibration block, it is characterised in that：Including block block
（3）, cone rubber is by ball（5）, steelframe impingement baffle（8）, thick china（7）；Trapezoidal block block（3）With pier top bent cap（1）For system
One is integrally provided in pier top bent cap（1）Both upper ends thereof；Pier top bent cap（1）Top surface is provided with vibration absorption and isolation support（4）, beam body（2）Branch
It supports in the vibration absorption and isolation support（4）On；Trapezoidal block block at both ends（3）Inside anchoring has the cone rubber of inner hollow to lean on
Ball（5）, cone rubber is by ball（5）With steelframe impingement baffle（8）Anchoring, steelframe impingement baffle（8）Surface is provided with the poly- second of supra polymer
Alkene thick china（7）, steelframe impingement baffle（8）Pass through iron chains（6）Limit is in block block（3）On, cone rubber leans on ball（5）Steelframe is anti-
Punching（8）With beam body（2）Between reserve certain distance.
2. a kind of direction across bridge taper according to claim 1 leans on the anti-fall girder construction of ball buffering energy-absorbing Antivibration block, feature
It is：The cone rubber leans on ball steelframe impingement baffle（8）Outside thick china（7）With beam body（2）The distance between be 20mm-
80mm。
3. a kind of direction across bridge taper according to claim 1 leans on the anti-fall girder construction of ball buffering energy-absorbing Antivibration block, feature
It is：The cone rubber leans on ball（5）Inside be Inflatable hollow construction, cone rubber lean on ball（5）Larger one side be under
Screw is used in bottom surface（9）It is anchored in trapezoidal block block（3）Inside, smaller one side is upper bottom surface, with steelframe impingement baffle（8）Anchoring.
4. a kind of direction across bridge taper according to claim 1 leans on the anti-fall girder construction of ball buffering energy-absorbing Antivibration block, feature
It is：The cone rubber leans on ball（5）It is being arranged to direction along bridge.
5. a kind of direction across bridge taper according to claim 1 leans on the anti-fall girder construction of ball buffering energy-absorbing Antivibration block, feature
It is：The block block is trapezoidal block block, trapezoidal block block（3）Positioned at pier top bent cap（1）Both upper ends thereof, trapezoidal gear
Block block（3）With pier top bent cap（1）It is integral prefabricated.
6. a kind of direction across bridge taper according to claim 1 leans on the anti-fall girder construction of ball buffering energy-absorbing Antivibration block, feature
It is：The cone rubber leans on ball（5）Steelframe impingement baffle is arranged in forward position（8）.
7. a kind of direction across bridge taper according to claim 1 leans on the anti-fall girder construction of ball buffering energy-absorbing Antivibration block, feature
It is：The steelframe impingement baffle（8）Front is installed by ultra high molecular polyethylene thick china（7）.
8. a kind of direction across bridge taper according to claim 1 leans on the anti-fall girder construction of ball buffering energy-absorbing Antivibration block, feature
It is：The iron chains passes through steelframe impingement baffle（8）With trapezoidal block block（3）The bolt chain hole of inside（10）By steelframe impingement baffle
（8）Limit, specially steelframe impingement baffle（8）Upper and lower both sides respectively with trapezoidal block block（3）Inside upper part corresponds to bolt chain hole
（10）It is connected.
9. a kind of direction across bridge taper according to claim 1 leans on the anti-fall girder construction of ball buffering energy-absorbing Antivibration block, feature
It is：The cone rubber leans on ball（5）Compression deformation up to 70%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721679597.2U CN207700034U (en) | 2017-12-06 | 2017-12-06 | A kind of direction across bridge taper leans on the anti-fall girder construction of ball buffering energy-absorbing Antivibration block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721679597.2U CN207700034U (en) | 2017-12-06 | 2017-12-06 | A kind of direction across bridge taper leans on the anti-fall girder construction of ball buffering energy-absorbing Antivibration block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207700034U true CN207700034U (en) | 2018-08-07 |
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ID=63025300
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721679597.2U Expired - Fee Related CN207700034U (en) | 2017-12-06 | 2017-12-06 | A kind of direction across bridge taper leans on the anti-fall girder construction of ball buffering energy-absorbing Antivibration block |
Country Status (1)
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| CN (1) | CN207700034U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107988893A (en) * | 2017-12-06 | 2018-05-04 | 南昌大学 | The anti-fall girder construction of ball buffering energy-absorbing Antivibration block is leaned in a kind of direction across bridge taper |
| CN110777642A (en) * | 2019-11-07 | 2020-02-11 | 湘潭大学 | Anti-seismic energy dissipation stop block of negative Poisson ratio cell structure bridge |
| CN111287072A (en) * | 2020-02-28 | 2020-06-16 | 南昌大学 | Anti-overturning structure additionally arranged for existing single-column pier bridge |
| CN112523070A (en) * | 2020-12-16 | 2021-03-19 | 重庆交通大学 | Public road bridge roof beam stop device that falls is prevented to bridge |
-
2017
- 2017-12-06 CN CN201721679597.2U patent/CN207700034U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107988893A (en) * | 2017-12-06 | 2018-05-04 | 南昌大学 | The anti-fall girder construction of ball buffering energy-absorbing Antivibration block is leaned in a kind of direction across bridge taper |
| CN110777642A (en) * | 2019-11-07 | 2020-02-11 | 湘潭大学 | Anti-seismic energy dissipation stop block of negative Poisson ratio cell structure bridge |
| CN111287072A (en) * | 2020-02-28 | 2020-06-16 | 南昌大学 | Anti-overturning structure additionally arranged for existing single-column pier bridge |
| CN112523070A (en) * | 2020-12-16 | 2021-03-19 | 重庆交通大学 | Public road bridge roof beam stop device that falls is prevented to bridge |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180807 Termination date: 20201206 |
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| CF01 | Termination of patent right due to non-payment of annual fee |