CN106906737A - A kind of bridge earthquake resistance bridle iron - Google Patents
A kind of bridge earthquake resistance bridle iron Download PDFInfo
- Publication number
- CN106906737A CN106906737A CN201710251279.4A CN201710251279A CN106906737A CN 106906737 A CN106906737 A CN 106906737A CN 201710251279 A CN201710251279 A CN 201710251279A CN 106906737 A CN106906737 A CN 106906737A
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- CN
- China
- Prior art keywords
- connecting portion
- bridge
- upper bracket
- steel ball
- undersetting
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
- E01D19/042—Mechanical bearings
- E01D19/046—Spherical 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 kind of bridge earthquake resistance bridle iron, including the upper bracket body being connected with bridge main beam and the undersetting body being connected with bridge coping or pier；Also include steel ball body, be arranged between upper bracket body and undersetting body；Upper bracket body correspondence steel ball body position is provided with the upper connecting portion being engaged with firm spheroid of concave arc shape, and undersetting body correspondence steel ball body position is provided with the lower connecting portion being engaged with firm spheroid of concave arc shape；Spring is provided between upper bracket body and undersetting body, be can be movable relatively；Upper connecting portion and lower connecting portion surface are provided with wearing layer；Clearly, manufacture difficulty of processing is small for simple structure of the present invention, Path of Force Transfer, and bearing can be made to have various functions such as Self-resetting, multi-direction spacing, anti-vertical lift-off ability.
Description
Technical field
Subtract technical field of isolation the present invention relates to bridge earthquake resistance and bridge, and in particular to a kind of bridge earthquake resistance bridle iron.
Background technology
Can to some extent cause the loss of Chinese national economy per secondary earthquake, to bridge structure, building construction and water
Work dam body etc. causes certain breakage；Bridge structure as earthquake relief work traffic main artery, its destroy to rescue and restoration and reconstruction
Work brings greatly obstruction, how to ensure the safety of bridge structure and the earthquake disaster and secondary calamity of mitigation bridge structure
How evil, the highlight lines area for providing fortification against earthquakes selects rational bridge structure antidetonation system and subtracts isolation measure always bridge
The hot research problem in girder construction antiseismic engineering field.
Existing bridge structure aseismatic bearing, has lead core rubber support, high-damp rubber support, antidetonation pot bearing and rubs
Wipe pendulum bearing etc.；It is seen that bridge superstructure still has, cross spacing is not enough, anti-twisting property is poor under seismic loading,
Longitudinal spacing is not enough to be waited and causes the end of main beam of bridge structure to collide and peel off damaged, cross spacing block destruction and the beam thing that falls
Therefore；Under larger Vertical Earthquake Loads, easily there is tension state in the bearing of bridge structure；Above-mentioned several aseismatic bearing tension energy
Power prevents that vertical lift-off ability is relatively poor, and then is easily caused seat empty；And existing bridge girder anti-seismic bearing function with
The scope of application is relatively single, to realize that multi-functional need to often mutual cooperation with various glissandoes completes, cost will be caused significantly to carry
Rise.
The content of the invention
The present invention provides a kind of while having Self-resetting, the bridge earthquake resistance bridle iron of antitorque and anti-vertical lift-off ability.
The technical solution adopted by the present invention is：A kind of bridge earthquake resistance bridle iron, including the upper bracket being connected with bridge main beam
Body and the undersetting body being connected with bridge coping or pier；Also include steel ball body, be arranged between upper bracket body and undersetting body；
Upper bracket body correspondence steel ball body position is provided with the upper connecting portion being engaged with firm spheroid of concave arc shape, undersetting body correspondence steel
Ball position is provided with the lower connecting portion being engaged with firm spheroid of concave arc shape；It is provided between upper bracket body and undersetting body
Spring, can be movable relatively；Upper connecting portion and lower connecting portion surface are provided with wearing layer.
Further, the external edge of the upper bracket is downwardly extending the Access Division of multiple L-shaped, L-shaped horizontal segment part
Upward bearing body internal direction extends；Undersetting body is I-shape construction, and top is arranged in the region of Access Division composition.
Further, the upper connecting portion and lower connecting portion surface are provided with polytetrafluoroethylene floor.
Further, the spring is set along steel ball body radial direction, is provided with an at least row.
Further, the Access Division L-shaped structure horizontal segment part is rectilinear structure or wavy shaped configuration.
Further, the circular arc spherical surface radius of upper connecting portion and lower connecting portion is not less than the radius of steel ball body.
The beneficial effects of the invention are as follows：
（1）The present invention is provided with steel ball body and spring between upper and lower bearing body, under seismic loading, upper and lower bearing body
Certain relative displacement, arbitrary relative displacement will be produced can cause spring to produce larger restoring force, and due to recessed circle
The presence of arc sphere, can make bearing be automatically reset after producing certain displacement；
（2）The present invention can bear larger vertical pressure by setting spring and steel ball body, while spring can bear larger erecting
To pulling force so that bearing has stronger anti-vertical lift-off ability, the beam-ends impact failure caused by reversing can be reduced；
（3）Access Division is provided with upper bracket of the present invention, undersetting top is arranged in the region of Access Division composition, in strong earthquakes
Effect is lower can to limit larger relative displacement between the upper and lower structure of bridge, and then can be used as vertical anti-lift-off, anti-longitudinal impact and anti-
Vertically and horizontally fall the secondary defense of beam；
（4）Simple structure of the present invention, the antidetonation demand that different bridge structures can be met, low cost, with larger popularization and application
Prospect.
Brief description of the drawings
Fig. 1 is top view of the invention.
Fig. 2 is upward view of the invention.
Fig. 3 is A-A profiles in Fig. 1 of the present invention.
Fig. 4 is B-B profiles in Fig. 1 of the present invention.
In figure：1- upper bracket bodies, 2- undersetting bodies, 3- steel ball bodies, 4- springs, the bolts of 5- first, the bolts of 6- second, 7- is resistance to
Mill layer.
Specific embodiment
The present invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
As Figure 1-4, a kind of bridge earthquake resistance bridle iron, including the upper bracket body 1 and and bridge being connected with bridge main beam
Bent cap or the undersetting body 2 of pier connection；Also include steel ball body 3, be arranged between upper bracket body 1 and undersetting body 2；Upper bracket
The corresponding position of steel ball body 3 of body 1 is provided with the upper connecting portion being engaged with firm spheroid 3 of concave arc shape, the corresponding steel ball of undersetting body 2
The position of body 3 is provided with the lower connecting portion being engaged with firm spheroid 3 of concave arc shape；Set between upper bracket body 1 and undersetting body 2
There is spring 4, can be movable relatively；Upper connecting portion and lower connecting portion surface are provided with wearing layer 7.
Further, the outer edge of upper bracket body 1 is downwardly extending the Access Division of multiple L-shaped, L-shaped horizontal segment part
The upward internal direction of bearing body 1 extends；Undersetting body 2 is I-shape construction, and top is arranged in the region of Access Division composition；This
Planting structure design can effectively limit larger vertical displacement, while the bearing can also bear larger due to being provided with spring 4
Vertical tension, to prevent seat empty and structural system from changing, so ensure structure safety and reduce earthquake disaster；
Under the effect of strong horizontal earthquake, larger relative displacement will be produced between bridge structure up-down structure, and then cause spring 4 to produce
Larger deformation and obtaining stronger restoring force can make beam body Self-resetting；Even if excessive camber of spring cause spring 4 destroy and
Superstructure is overlapping together between the Access Division of upper bracket body 1 and undersetting body 2, effectively between the structure of limitation bridge upper and lower part
Larger horizontal displacement, gives full play to the secondary defense effect of anti-vertical lift-off, anti-longitudinal impact and the anti-beam that vertically and horizontally falls.
Further, the upper connecting portion and lower connecting portion surface are provided with polytetrafluoroethylene floor；PTFE anti-wear
Performance is good.
Further, the spring 4 is set along the radial direction of steel ball body 3, is provided with an at least row, can increase its shock resistance
Energy.
Further, the Access Division L-shaped structure horizontal segment part is rectilinear structure or wavy shaped configuration.
Further, the circular arc spherical surface radius of upper connecting portion and lower connecting portion is not less than the radius of steel ball body 3.
When using, first on the steel plate of certain size by upper bracket body 1, undersetting body 2 and steel ball body 3 cut polishing plus
Work is good, using polytetrafluoroethylene (PTFE) as wearing layer 7 be applied to respectively upper bracket body 1 and undersetting body 2 concave arc spherical structure it is upper,
On lower connecting portion；Then firm spheroid 3 is positioned on the lower connecting portion of undersetting body 2, then upper bracket body 1 is put in steel ball body 3
Go up and fixed temporarily；Then upper bracket body 1 and undersetting body 2 are linked together and remove interim fixation by spring 4 and is arranged
Apply, be so just completed bridge earthquake resistance bridle iron；Finally reserved in upper bracket body 1 and the relevant position of undersetting body 2
The first bolt 5 is worn in bolt hole and be fixed on bearing between bridge main beam and substructure by the second bolt 6.
There is certain gap between the Access Division and the I-shaped structure top of undersetting body 2 of upper bracket body 1 of the present invention；Its
Horizontal clearance is L1, and vertical gap is that L2, L1 and L2 determine its size according to analysis is calculated；The present invention is by being arranged on upper bracket
Upper and lower connecting portion on body 1 and undersetting body 2 and spring 4 in-between is set, under seismic loading, upper bracket body 1
With undersetting body 2 the certain relative displacement, arbitrary relative displacement will be produced can to cause spring 4 to produce larger restoring force,
Due to the presence of upper and lower connecting portion, the present invention can be made to be automatically reset after producing displacement；Due to being provided with spring 4 and steel ball body 3,
The present invention can bear larger vertical pressure, while spring 4 can also bear larger vertical tension, and then make bearing have compared with
Strong anti-vertical lift-off ability, to ensure the security of bridge structure and driving；Additionally, when bridge superstructure generation is certain
During torsion, spring will produce certain deformation and have stronger restoring force, and bridge superstructure can be made to automatically reset, and then will
The torsional deflection of bridge superstructure is limited within the specific limits, to reduce the beam-ends impact failure caused by reversing；On simultaneously
Bearing body 1 and undersetting body 2, can limit larger relative displacement between the structure of bridge upper and lower part, Jin Erke under action of strong earthquake
As the secondary defense for preventing vertical lift-off, anti-longitudinal impact and the anti-beam that vertically and horizontally falls, the shock resistance of bridge structure is significantly improved
With reduction bridge earthquake disaster；And shock strength of the invention can be by changing spring rate, quantity and the recessed circle of the bearing
The parameters such as radius, the L1 and L2 of arc sphere and steel ball body 3, to meet the antidetonation demand of different bridge structures.
The present invention, can be by the spring 4 in bearing come the seismic energy that dissipates under geological process, upper and lower connecting portion in addition
Concave arc sphere presence, be capable of achieving beam body runback bit function；The Access Division and I-shaped of upper bracket body 1 and undersetting body 2
Gap is left between type structure upper, the deformation of bridge upper and lower part structure is not interfered with；Simple structure, Path of Force Transfer clearly, are made
Make that difficulty of processing is small, calculate analysis and limited experiment and just can obtain preferably scheme by rational, can make bearing have from
Reset, it is multi-direction it is spacing, prevent various functions such as vertical lift-off ability, effective excessive longitudinal and transverse, vertical of limitation bridge superstructure
Displacement, can also bear certain vertical tension, and the vertical, horizontal for reducing bridge superstructure falls beam accident and longitudinal impact destruction,
And then bridge structure is obtained preferably anti-seismic performance, and maintenance and reinforcement expense after bridge structure shake can be reduced.
Claims (6)
1. a kind of bridge earthquake resistance bridle iron, it is characterised in that：Including the upper bracket body (1) that is connected with bridge main beam and with bridge lid
Beam or the undersetting body (2) of pier connection；Also include steel ball body (3), be arranged between upper bracket body (1) and undersetting body (2)；
Upper bracket body (1) correspondence steel ball body (3) position is provided with the upper connecting portion being engaged with firm spheroid (3) of concave arc shape, lower branch
Pedestal (2) correspondence steel ball body (3) position is provided with the lower connecting portion being engaged with firm spheroid (3) of concave arc shape；Upper bracket body
(1) spring (4) is provided with and undersetting body (2) between, is can be movable relatively；Upper connecting portion and lower connecting portion surface are provided with resistance to
Mill layer (7).
2. a kind of bridge earthquake resistance bridle iron according to claim 1, it is characterised in that：Upper bracket body (1) outer edge
The Access Division of multiple L-shaped is downwardly extending, L-shaped horizontal segment part upward bearing body (1) internal direction extends；Undersetting body
(2) it is I-shape construction, top is arranged in the region of Access Division composition.
3. a kind of bridge earthquake resistance bridle iron according to claim 1, it is characterised in that：The upper connecting portion and lower connecting portion
Surface is provided with polytetrafluoroethylene floor.
4. a kind of bridge earthquake resistance bridle iron according to claim 1, it is characterised in that：The spring (4) is along steel ball body (3)
Radial direction is set, and is provided with an at least row.
5. a kind of bridge earthquake resistance bridle iron according to claim 2, it is characterised in that：The Access Division L-shaped structure level
Section part is rectilinear structure or wavy shaped configuration.
6. a kind of bridge earthquake resistance bridle iron according to claim 1, it is characterised in that：The circle of upper connecting portion and lower connecting portion
Arc spherical radius is not less than the radius of steel ball body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710251279.4A CN106906737A (en) | 2017-04-18 | 2017-04-18 | A kind of bridge earthquake resistance bridle iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710251279.4A CN106906737A (en) | 2017-04-18 | 2017-04-18 | A kind of bridge earthquake resistance bridle iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106906737A true CN106906737A (en) | 2017-06-30 |
Family
ID=59209658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710251279.4A Pending CN106906737A (en) | 2017-04-18 | 2017-04-18 | A kind of bridge earthquake resistance bridle iron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106906737A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108677698A (en) * | 2018-06-29 | 2018-10-19 | 浙江秦山橡胶工程股份有限公司 | A kind of damping big corner ball shaped steel bearing |
| CN109853747A (en) * | 2018-12-20 | 2019-06-07 | 中国人民解放军军事科学院国防工程研究院 | A kind of antiknock energy dissipating combined isolator |
| CN112030732A (en) * | 2020-08-21 | 2020-12-04 | 台州学院 | Bridge tensile subtracts isolation bearing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0378986A1 (en) * | 1989-01-20 | 1990-07-25 | BÖHLER Gesellschaft m.b.H. | Bearing |
| CN1163336A (en) * | 1997-05-14 | 1997-10-29 | 中国建筑西南设计研究院 | Vibration isolating support capable of self resetting |
| US20030167707A1 (en) * | 2002-03-07 | 2003-09-11 | Chong-Shien Tsai | Structure of an anti-shock device |
| CN203200652U (en) * | 2013-05-09 | 2013-09-18 | 衡水宝力工程橡胶有限公司 | Light drawing-resistant support |
| CN105256717A (en) * | 2015-11-13 | 2016-01-20 | 天津市市政工程设计研究院 | Ultrahigh horizontal force high-durability spherical support for track traffic |
| CN205557316U (en) * | 2016-05-05 | 2016-09-07 | 刘丽霞 | Shock -absorbing bridge support |
-
2017
- 2017-04-18 CN CN201710251279.4A patent/CN106906737A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0378986A1 (en) * | 1989-01-20 | 1990-07-25 | BÖHLER Gesellschaft m.b.H. | Bearing |
| CN1163336A (en) * | 1997-05-14 | 1997-10-29 | 中国建筑西南设计研究院 | Vibration isolating support capable of self resetting |
| US20030167707A1 (en) * | 2002-03-07 | 2003-09-11 | Chong-Shien Tsai | Structure of an anti-shock device |
| CN203200652U (en) * | 2013-05-09 | 2013-09-18 | 衡水宝力工程橡胶有限公司 | Light drawing-resistant support |
| CN105256717A (en) * | 2015-11-13 | 2016-01-20 | 天津市市政工程设计研究院 | Ultrahigh horizontal force high-durability spherical support for track traffic |
| CN205557316U (en) * | 2016-05-05 | 2016-09-07 | 刘丽霞 | Shock -absorbing bridge support |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108677698A (en) * | 2018-06-29 | 2018-10-19 | 浙江秦山橡胶工程股份有限公司 | A kind of damping big corner ball shaped steel bearing |
| CN108677698B (en) * | 2018-06-29 | 2024-03-26 | 浙江秦山橡胶工程股份有限公司 | Shock attenuation large-rotation-angle spherical steel support |
| CN109853747A (en) * | 2018-12-20 | 2019-06-07 | 中国人民解放军军事科学院国防工程研究院 | A kind of antiknock energy dissipating combined isolator |
| CN112030732A (en) * | 2020-08-21 | 2020-12-04 | 台州学院 | Bridge tensile subtracts isolation bearing |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170630 |