CN110130207A - A kind of two-way decoupling limiter and the bridge structure for installing the limiter - Google Patents
A kind of two-way decoupling limiter and the bridge structure for installing the limiter Download PDFInfo
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- CN110130207A CN110130207A CN201910407248.2A CN201910407248A CN110130207A CN 110130207 A CN110130207 A CN 110130207A CN 201910407248 A CN201910407248 A CN 201910407248A CN 110130207 A CN110130207 A CN 110130207A
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- limiter
- connecting plate
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- limit stick
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 31
- 239000010959 steel Substances 0.000 claims abstract description 31
- 238000013016 damping Methods 0.000 claims abstract description 29
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims abstract description 12
- 238000010276 construction Methods 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 2
- 238000004364 calculation method Methods 0.000 abstract description 4
- 210000002421 cell wall Anatomy 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 description 17
- 238000005265 energy consumption Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of two-way decoupling limiter and the bridge structure of the limiter is installed, two-way decoupling limiter is divided into upper and lower two parts, top is divided into the steel shallow slot arranged downwards, steel tank inner edge profile can need to be designed according to limit, N number of roundlet taper mild steel system damping cone is set between the first connecting plate of the first connecting plate of steel tank and limiter, and the first connecting plate of limiter is anchored in beam bottom by embedded bar；Lower part is divided into the steel cone limit stick arranged upwards, is a spherical impact portions at the top of limit stick, limit stick is welded in the second connecting plate of limiter, and is anchored in bridge pier pier top or pier cap beam top by embedded bar.When limiter deploys, spherical colliding part is contacted inside steel tank, and not with the first connecting plate of steel tank at the top of limit stick.Steel tank inner edge overall size, cell wall are thick, damping is bored design parameter, limit stick design parameter and determined by seismic Calculation.
Description
Technical field
The invention belongs to bridge technology fields, and in particular to a kind of two-way decoupling limiter and the bridge for installing the limiter
Structure.
Background technique
In recent years, earthquake takes place frequently in global range, causes great life and property loss, a large amount of bridges to the disaster area mankind
Structure is seriously destroyed in earthquake, causes serious secondary disaster.Its decline beam is more serious a kind of earthquake, meeting
It causes greatly to threaten to human life's property.
At present lateral concrete block would generally be arranged at bent cap both ends in bridge structure in inventor's discovery, but non-strong
Earthquake region tends not to that longitudinal block is arranged, and is easy under geological process in the earthquake for longitudinally falling beam.It is longitudinally limited in meizoseismal area
The usual way of position is that cable is arranged between pier beam, can reduce the generation for falling beam earthquake to a certain extent, but do not have substantially
Energy consumption effect, and since cable type limit there are problems that longitudinally, laterally coupling, while also will receive the shadow of vertical seismic action
It rings, when calculating there are large error, the accuracy of calculated result is difficult to ensure.
Summary of the invention
The purpose of the present invention is to provide a kind of two-way decoupling limiter and install the limiter bridge structure, it can be achieved that
Decoupling of the bridge along bridge to, direction across bridge limits, and has certain energy consumption effect, can not only prevent to fall beam, can also be must
Energy consumption is provided when wanting, while also improving design-calculated accuracy and reliability.
First invention purpose of the invention is to provide a kind of two-way decoupling limiter, and the present invention in order to realize the purpose, adopts
Technical solution is as follows:
A kind of two-way decoupling limiter, including the first connecting plate arranged in parallel, groove profile part and the second connecting plate, institute
The groove profile part stated has the first plane and the second plane being parallel to each other, and is equipped with groove, second plane on the first plane
Multiple damping cones are additionally provided between the first connecting plate；Conical limit stick is set between the groove and the second connecting plate,
Be spherical impact portions at the top of the limit stick, the spherical colliding part in the inside grooves of groove profile part, but not with groove
Bottom contact.
Further, the diameter of the close slot airfoil portion of limit stick is less than it close to the diameter of the second connecting plate part.
Further, the diameter close to the first connecting plate part of the damping cone is greater than it close to slot airfoil portion
Diameter；Or the diameter close to the first connecting plate part of damping cone is less than it close to the diameter of slot airfoil portion.
Further, damping cone is made by mild steel, and limit stick is made of hard steel.
Further, multiple damping cones are uniformly distributed between the top and the first connecting plate of groove profile part.
Further, the inner edge profile of the groove can need to be designed according to limit.
Second goal of the invention of the invention is to provide a kind of two-way decoupling limiter, connects including arranged in parallel first
Fishplate bar, groove profile part and the second connecting plate, the groove profile part have the first plane and the second plane that are parallel to each other, and described second
Plane links together with the first connecting plate, is equipped with groove on the first plane, circular cone is arranged between groove and the second connecting plate
Shape limit stick, the top of the conical limit stick are spherical impact portions, and the spherical colliding part is in the recessed of groove profile part
Inside slot, but do not contacted with bottom portion of groove.
Further, the limit stick is made by mild steel or hard steel；When needing limiter to play certain energy consumption effect,
Limit stick is made by mild steel；When limiter mainly plays limitation bridge pier, the effect of horizontal relative displacement between beam body, limit stick by
Hard steel production.
Third goal of the invention of the invention is to provide a kind of concrete bridge including mentioned-above two-way decoupling limiter
Girder construction, the first connecting plate of the limiter and the one of both of the second connecting plate are anchored in beam bottom by embedded bar；Two
Other one in person is anchored in bridge pier pier top or pier cap beam top by embedded bar.
4th goal of the invention of the invention is to provide a kind of Steel Bridge knot including mentioned-above two-way decoupling limiter
Structure, the first connecting plate of the limiter and the one of both of the second connecting plate are welded or are bolted at girder steel bottom
Portion；Other one in the two is anchored in bridge pier pier top or pier cap beam top by embedded bar.
Limiter of the invention is divided into upper and lower two parts, and top is divided into the groove profile part arranged downwards, the second plane of groove profile part
Roundlet taper mild steel system is set between the first connecting plate of limiter and damps cone, the first connecting plate of limiter is anchored by embedded bar
In beam bottom；Lower part is divided into the steel cone limit stick arranged upwards, is a spherical impact portions, limit stick at the top of limit stick
It is welded in the second connecting plate of limiter, and bridge pier pier top or pier cap beam top are anchored in by embedded bar；It is real with this configuration
Bridge is showed along bridge to the decoupling with direction across bridge limit function, the limit function of both direction is independent of each other.Limiter arranges
Bi Shi, the spherical colliding part in limit stick top are contacted in the inside grooves of groove profile part, and not with bottom portion of groove.
Further, the upper and bottom section of limiter uses after can also replacing up and down.
During bridge normal operation, relative displacement is smaller between pier beam, does not fall beam risk, limit stick and groove profile part respectively with
The bridge parts connected move, but will not contact mutually.When earthquake occurs, horizontal relative displacement increases between pier beam, when
When pier beam horizontal relative displacement reaches collision limit value, limit stick and groove profile part inner edge collide to limit pier beam relative displacement
Increase, meanwhile, damping between groove profile part and the first connecting plate cone can occur small deformation when colliding and occurring and consume energy,
Both guaranteed that pier beam relative displacement prevented to fall beam in safe range, and reduced transmitting of the seismic force to bridge pier also by energy consumption.
And Dun Liang can be carried out independently along bridge to the limit value with direction across bridge relative displacement by modification groove profile part inner edge profile
Design realizes that either direction pier beam relative displacement limit value is independently set in the horizontal plane simultaneously also by groove profile part inner edge profile
It counts, the distance of groove profile part inner edge profile point to limit stick initial position is relative displacement limit in this direction on any direction
Value.
When consuming energy of less demanding, damping cone can also be cancelled, limit stick is made of mild steel, by limiting when colliding
Stick occurs small plastic deformation and consumes energy.
Beneficial effects of the present invention are as follows:
Under geological process, compared with Conventional limit device, limiter System structure provided by the invention is simple, low cost
It is honest and clean, and it is more convenient to construct, and not only can realize limit function according to design requirement in any horizontal direction, but also all directions limit function
Can be relatively independent, it is independent of each other, thus advantageously ensure that the accuracy of theoretical calculation analysis, meanwhile, which can be by design
It is required that playing certain energy-dissipating and shock-absorbing effect, certain seismic energy is absorbed, reduces impact force when limiter collides, cuts
Transmitting of the weak seismic force to bridge pier.It is effective supplement that conventional bridge earthquake resistance means or bridge subtract seismic isolation technology, it is ensured that on ground
The shifting of upper beam position will not transfinite when shake occurs, and avoid falling beam, guarantee bridge structure safe.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation are not constituted an undue limitation on the present application for explaining the application.
Fig. 1 is the integral installation structure chart that the present invention is mounted on concrete-bridge；
Fig. 2 is the A-A view of Fig. 1；
Fig. 3 is the B-B view of Fig. 2；
Fig. 4 is the limiter structure chart with damping cone；
Fig. 5 is the limiter structure chart without damping cone；
Fig. 6 is welding scheme of installation of the present invention on steel girder；
Fig. 7 is bolt connection of the present invention on steel girder.
In figure: 1 second connecting plate, 2 limit sticks, 3 groove profile parts, 4 damping cones, 5 first connecting plates, 6 embedded bars, 7 is pre-buried
Reinforcing bar, 8 concrete girders, 9 the second connecting plates of steel girder, 10 bridge piers/bent cap top, 11 bolts.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination；
In order to facilitate narration, if there is "upper", "lower", " left side " " right side " printed words in the present invention, only expression and attached drawing itself
Upper and lower, left and right direction it is consistent, not to structure rise restriction effect, it is only for convenient for description the present invention and simplification retouch
It states, rather than the equipment of indication or suggestion meaning or element must have a particular orientation, and be constructed and operated in a specific orientation,
Therefore it is not considered as limiting the invention.
Term explains part: the terms such as term " installation ", " connected ", " connection ", " fixation " in the present invention should do broad sense
Understand, for example, it may be being fixedly connected, may be a detachable connection, or be integrated；It can be mechanical connection, be also possible to
Electrical connection, can be and be directly connected to, and be also possible to indirectly connected through an intermediary, can be connection inside two elements, or
The interaction relationship of two elements of person, for the ordinary skill in the art, can understand as the case may be on
Term is stated in concrete meaning of the invention.
The component that heretofore described " groove profile part " refers to for groove shapes.
As background technique is introduced, inventor's discovery would generally be arranged horizontal in bridge structure at bent cap both ends at present
It to concrete block, but in non-meizoseismal area, tends not to that longitudinal block is arranged, is easy longitudinally falling beam under geological process
Earthquake.It is that cable is set between pier beam in the usual way of meizoseismal area longitudinal spacing, can reduces to a certain extent and fall beam
The generation of earthquake, but acted on substantially without energy consumption, and since cable type limit there are problems that longitudinally, laterally coupling, simultaneously
Also the influence that will receive vertical seismic action, when calculating there are large error, the accuracy of calculated result is difficult to ensure, in order to solve
Technical problem as above present applicant proposes a kind of two-way decoupling limiter and installs the bridge structure of the limiter.
Embodiment 1
It is proposed by the present invention it is typical implement as shown in figure 4, two-way decoupling limiter it include setting gradually from top to bottom
First connecting plate, groove profile part and the second connecting plate, the first connecting plate is as top plate, and the second connecting plate is as bottom plate；The slot
The groove of type part is downward, and limit stick is arranged between the groove of groove profile part and the second connecting plate, is spherical at the top of the limit stick
Impact portions, the spherical colliding part contact inside the groove profile mouth of groove profile part, but not at the top of groove profile part；In the groove profile
Multiple damping cones are additionally provided between the top of part and the first connecting plate.It is straight that the upper diameter of the damping cone is greater than lower part
Diameter is inverted cone-shaped structure.
The damping cone is made by mild steel, is directly welded between the top of groove profile part and the first connecting plate.
Further, an above-mentioned groove profile part generally rectangular configuration is equipped with recess upwards in the bottom of the rectangular configuration
Groove, groove inner edge profile can according to limit need be designed (usually without wedge angle, with circular arc chamfering transition).
Above-mentioned limiter is divided into upper and lower two parts, and top is divided into the steel shallow trench part structure arranged downwards；Groove profile part
Be arranged between the first connecting plate of top and limiter it is N number of (N is natural number, typically no less than 4) roundlet taper mild steel system damping cone, under
Part is the steel cone limit stick arranged upwards, and limit stick top is a spherical impact portions.
Further, spherical impact portions and this body by integral forming of limit stick, or weld together；It welds the bottom of limit stick
It is connected on the second connecting plate of limiter, when limiter deploys, spherical colliding part is in the groove of groove profile part at the top of limit stick
Inside, but do not contacted with the bottom portion of groove of groove profile part.
The inner edge overall size of groove profile part, cell wall are thick, design parameter is bored in damping, limit stick design parameter passes through antidetonation meter
It calculates and determines.
Above structure is suitably applied in energy consumption and requires in relatively high bridge structure, during bridge normal operation, between pier beam
Relative displacement is smaller, does not fall beam risk, limit stick is respectively moved with bridge pier and beam body with groove profile part, but is not contacted.Ground
When shake occurs, relative displacement increases between pier beam, when pier beam horizontal relative displacement reaches collision limit value, in limit stick and groove profile part
Horizontal impact occurs for edge to limit the increase of pier beam relative displacement, meanwhile, the damping cone between groove profile part and the first connecting plate can
Small deformation occurs when colliding and occurring to consume energy, has both guaranteed that pier beam relative displacement prevents to fall in safe range
Beam reduces transmitting of the seismic force to bridge pier also by energy consumption.
Further, Dun Liang can be by modifying groove profile part groove inner edge profile to the limit value with direction across bridge relative displacement along bridge
Independent design is carried out, realizes either direction pier beam relative displacement limit value in the horizontal plane simultaneously also by groove profile part inner edge profile
Independent design, the distance of groove profile part inner edge profile point to limit stick initial position is opposite position in this direction on any direction
Move limit value.
Embodiment 2
The present invention also provides a kind of limiters, as shown in figure 5, it is bored the difference from embodiment 1 is that eliminating damping,
Its limit stick is made of mild steel or hard steel, remaining structure is identical as the structure in embodiment 1；This structure is suitable for working as bridge
When beam energy consumption is of less demanding, damping cone can be cancelled, when needing limiter to play certain energy consumption effect, limit stick is used into mild steel
Production, occurs small plastic deformation by limit stick when colliding and consumes energy；When limiter mainly plays limitation bridge pier, beam
Between body when the effect of horizontal relative displacement, limit stick is made by hard steel.
Embodiment 3
The present invention also provides a kind of bridge structure including limiter described in embodiment 1, referring specifically to Fig. 1, Fig. 2,
Fig. 3；Two-way decoupling limiter it include the first connecting plate 5, groove profile part 3 and the second connecting plate 1 set gradually from top to bottom, institute
The groove for the groove profile part 3 stated is downward, and conical limit stick 2, the circle are arranged between the groove of groove profile part 3 and the second connecting plate
Be spherical impact portions at the top of conical limit stick, the spherical colliding part inside the groove profile mouth of groove profile part, but not with groove profile
Contact at the top of part；N number of damping cone 4 is additionally provided between the top and the first connecting plate of the groove profile part, (N is natural number, one
As not less than 4)；The upper diameter of the damping cone 4 is greater than lower diameter, is inverted cone-shaped structure；The damping is bored by soft
Steel production.
Specifically, during installation, for beams of concrete, the first connecting plate of the limiter is anchored in by embedded bar
Beam bottom；Second connecting plate for stating limiter is anchored in bridge pier pier top or pier cap beam top by embedded bar；
As shown in Figure 6, Figure 7, for steel bridge girder construction, the first connecting plate of the limiter is directly welded at steel girder
The bottom (see Fig. 6) of two connecting plates or the bottom that the second connecting plate of steel girder is fixed on by high-strength bolt (see Fig. 7)；It is described
The second connecting plate for stating limiter is anchored in bridge pier pier top or pier cap beam top by embedded bar.Groove profile part inner edge profile can root
It needs to be designed (usually without wedge angle, with circular arc chamfering transition) according to limit.
Groove profile part inner edge overall size, cell wall are thick, damping bores design parameter, limit stick design parameter all in accordance with different bridges
Girder construction and seismic Calculation determine.
Embodiment 4
Another limiter application method is also disclosed in the present embodiment, i.e., makes after being to be fully inverted the limiter of Fig. 1
With the first connecting plate is as bottom plate, and the second connecting plate is as top plate；Whole device is inverted, and the second connecting plate and passes through pre-buried steel
Muscle is anchored in beam bottom；First connecting plate is anchored in bridge pier pier top or pier cap beam top by embedded bar；
For steel bridge girder construction, the second connecting plate of the limiter is directly welded at the bottom or logical of steel kingpost baseplate
Cross the bottom that high-strength bolt is fixed on steel kingpost baseplate；First connecting plate for stating limiter is anchored in bridge by embedded bar
Pier pier top or pier cap beam top.
Under geological process, compared with limiting device, limiter System structure provided by the invention is simple, cheap, and
It constructs more convenient, not only can realize limit function, but also all directions limit function phase according to design requirement in any horizontal direction
To independence, it is independent of each other, thus advantageously ensure that the accuracy of theoretical calculation analysis, meanwhile, which can be by design requirement
Certain energy-dissipating and shock-absorbing effect is played, certain seismic energy is absorbed, reduces impact force and earthquake when limiter collides
Transmitting of the power to bridge pier.It is effective supplement that conventional bridge earthquake resistance means or bridge subtract seismic isolation technology, it is ensured that occur in earthquake
When the shifting of upper beam position will not transfinite, avoid falling beam, guarantee bridge structure safe.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (10)
1. a kind of two-way decoupling limiter, which is characterized in that including the first connecting plate arranged in parallel, groove profile part and second
Connecting plate, the groove profile part have the first plane and the second plane being parallel to each other, and are equipped with groove on the first plane, described
Multiple damping cones are additionally provided between second plane and the first connecting plate；Cone is set between the groove and the second connecting plate
Limit stick is spherical impact portions at the top of the limit stick, and the spherical colliding part is not in the inside grooves of groove profile part, but not
It is contacted with bottom portion of groove.
2. two-way decoupling limiter as described in claim 1, which is characterized in that the inner edge profile of the groove can be according to limit
Position needs to be designed.
3. two-way decoupling limiter as described in claim 1, which is characterized in that the limit stick is made by hard steel；Limit
The diameter of the close slot airfoil portion of stick is less than it close to the diameter of the second connecting plate part.
4. two-way decoupling limiter as described in claim 1, which is characterized in that the limit stick bottom is welded in the second connection
On plate.
5. two-way decoupling limiter as described in claim 1, which is characterized in that the damping cone is made by mild steel, described
The diameter close to the first connecting plate part of damping cone be greater than it close to the diameter of slot airfoil portion or damping cone close to the
The diameter of one connecting plate part is less than it close to the diameter of slot airfoil portion.
6. two-way decoupling limiter as described in claim 1, which is characterized in that multiple damping cones are at the top and the of groove profile part
It is uniformly distributed between one connecting plate.
7. a kind of two-way decoupling limiter, which is characterized in that including the first connecting plate arranged in parallel, groove profile part and second
Connecting plate, the groove profile part have the first plane and the second plane being parallel to each other, second plane and the first connecting plate
It links together, is equipped with groove on the first plane, conical limit stick, the circle are set between groove and the second connecting plate
The top of conical limit stick is spherical impact portions, the spherical colliding part in the inside grooves of groove profile part, but not with groove profile
The contact of part bottom；The conical limit stick is made by mild steel or hard steel.
8. two-way decoupling limiter as claimed in claim 7, which is characterized in that the close slot airfoil portion of the limit stick
Diameter be less than its close to the second connecting plate part diameter.
9. a kind of concrete bridge structure including any two-way decoupling limiter of claim 1-8, which is characterized in that
First connecting plate of the limiter and the one of both of the second connecting plate are anchored in beam bottom by embedded bar；It is another in the two
Outer one is anchored in bridge pier pier top or pier cap beam top by embedded bar.
10. a kind of steel bridge girder construction including any two-way decoupling limiter of claim 1-8, which is characterized in that institute
It states the one of both welding of the first connecting plate and the second connecting plate of limiter or is bolted in steel beam bottom；The two
In other one bridge pier pier top or pier cap beam top are anchored in by embedded bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910407248.2A CN110130207A (en) | 2019-05-16 | 2019-05-16 | A kind of two-way decoupling limiter and the bridge structure for installing the limiter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910407248.2A CN110130207A (en) | 2019-05-16 | 2019-05-16 | A kind of two-way decoupling limiter and the bridge structure for installing the limiter |
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| CN201910407248.2A Pending CN110130207A (en) | 2019-05-16 | 2019-05-16 | A kind of two-way decoupling limiter and the bridge structure for installing the limiter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111305041A (en) * | 2020-02-28 | 2020-06-19 | 江苏大学 | Multistage anti-impact energy-consumption bridge limiter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111305041A (en) * | 2020-02-28 | 2020-06-19 | 江苏大学 | Multistage anti-impact energy-consumption bridge limiter |
| CN111305041B (en) * | 2020-02-28 | 2021-10-12 | 江苏大学 | Multistage anti-impact energy-consumption bridge limiter |
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