CN106381803A - Novel energy-dissipation anti-dropping beam device - Google Patents
Novel energy-dissipation anti-dropping beam device Download PDFInfo
- Publication number
- CN106381803A CN106381803A CN201610918359.6A CN201610918359A CN106381803A CN 106381803 A CN106381803 A CN 106381803A CN 201610918359 A CN201610918359 A CN 201610918359A CN 106381803 A CN106381803 A CN 106381803A
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- China
- Prior art keywords
- connecting plate
- shape
- slotted eye
- novel energy
- dissipative cell
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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
Abstract
The invention provides a novel energy-dissipation anti-dropping beam device. The novel energy-consumingdissipationate A (1), a connecting plate B (2), an E-shaped energy-dissipation element (3), a high-strength bolt (4), a main beam pre-embedded part (5), a pier pre-embedded part (6), restraining groove holes (7) of the connecting plate B (2) and restraining groove holes (8) of the connecting plate A (1), wherein the restraining groove holes (7), which are matched with the quantity and positions of cantilever limbs of the E-shaped energy-dissipation element (3), are machined on the connecting plate B (2); the length of the restraining groove hole (7) in the middle is smaller than the length of the restraining groove holes (7) at the two ends; the matched restraining groove holes (8) are machined at the positions, corresponding to the restraining groove hole (7) in the middle of the connecting plate B (2), on the connecting plate A (1), and matched screw holes or through holes are machined at the positions corresponding to the restraining groove holes (7) at the two ends. The novel energy-dissipation anti-dropping beam device has the characteristics of reasonable structural form, low manufacturing cost, easiness of mounting and replacing, good energy-dissipation performance and the like and has a good application prospect.
Description
Technical field
The present invention relates to a kind of bridge earthquake resistance and cushion technique, the passive energy dissipation and damping control of especially a kind of bridge structure and spacing
In novel energy-consumption anti-fall girder apparatus, specifically one kind can be bridge structure provide additional damping ratio, reduce bridge ground
Shake reaction, limits Dun Liang（Or platform beam）Between relative displacement, the novel energy-consumption girder falling dress of the beam that finally prevents to fall
Put.
Background technology
Bridge earthquake resistance is a more complicated problem, compared with building structure, due to the construction featuress of bridge itself, resists
Shake problem and building structure also have the one side of its uniqueness.Expansion gap device is non-structural element, and its adaptation that is disposed to is tied
Structure Material shrinkage, creep and ambient temperature change etc. factor impact.Its nonlinear problem is that building structure is unexistent.
It is discontinuous structural system that its presence makes bridge structure, thus the earthquake response that result in bridge structure is also quite multiple
Miscellaneous.A large amount of bridge earthquakes experience have shown that, excessive pier at expansion joint（Platform）Beam relative displacement is that bridge falls the important former of beam
Therefore one.
Anti-fall girder apparatus are primarily to limit pier（Platform）Relative displacement between beam, prevents because of pier（Platform）Beam relative displacement
The excessive and beam that falls, increases earthquake further.Application at present more mainly drag-line anti-fall girder apparatus and oil damper
Energy-dissipating device, drag-line anti-fall girder apparatus are only in pier（Platform）Relative displacement between beam exceedes it and does not just occur after active length
Effect, and position-limiting action can only be played, though oil damper can produce power consumption effect, because it is also easy to produce oil leakage phenomenon and its valency
The costliness of lattice, hardly results in and is widely applied, and therefore researches and develops and a kind of can consume energy and can spacing anti-fall girder apparatus become when business
Anxious.
Content of the invention
The purpose of the present invention is the present situation less for domestic existing energy-dissipating type anti-fall girder apparatus product it is proposed that one kind both energy consumptions
The energy spacing new anti-fall girder apparatus of energy again.
The purpose of the present invention solves by the following technical programs：
A kind of novel energy-consumption anti-fall girder apparatus, is characterized in that it includes connecting plate A1, connecting plate B2, E shape dissipative cell 3, high-strength
Bolt 4, girder built-in fitting 5, pier built-in fitting 6, the constraint slotted eye 7 of connecting plate B2 and the constraint slotted eye of connecting plate A1
8, described connecting plate B2 is machined with the constraint slotted eye being matched with the cantilever limb quantity of E shape dissipative cell 3, position
7, and the length of the constraint slotted eye 7 of centre is less than the length that two ends constrain slotted eye 7；On described connecting plate A1 be connected
Intermediate restraint slotted eye 7 relative position on plate B2 is machined with the constraint slotted eye B8 matching, and constrains slotted eye 7 with two ends
Screw or through hole 9 that relative position processing matches；Connecting plate B2, connecting plate A1 and E shape dissipative cell 3 lead to
Cross high-strength bolt 4 to be connected, the free end of connecting plate A1 is hinged and connected with pier built-in fitting 6 by high-strength bolt 4, connect
The free end of plate B2 is hinged and connected with girder built-in fitting 5.
Two row's constraint slotted eyes 7 are machined with described connecting plate B2, connecting plate A1 is also machined with and connecting plate
The corresponding constraint slotted eye 8 of B2, described E shape dissipative cell 3 is symmetrically mounted on connecting plate A1 and connecting plate B2
Both sides.
Described connecting plate B2 is in U type structure, the elongated structure of connecting plate A1, string configuration connecting plate
One end of A1 is inserted in the connecting plate B2 of U type structure.
Described E shape dissipative cell 3 is formed by stacking by multi-disc, and they are located at the one or both sides of connecting plate A1.
Two end limbs of described E shape dissipative cell are fixed on connecting plate A by high-strength bolt, as connecting plate A
After relative displacement with connecting plate B exceedes the not active length of anti-fall girder apparatus, the middle limb of E shape dissipative cell will be by card
At not active length position, but two end limbs can deform, with the continuous increase of middle limb and end limb relative displacement, E
Shape dissipative cell is transitioned into plastic deformation from elastic deformation, gradually plays power consumption effect.When connecting plate A's and connecting plate B
After relative displacement reaches the maximum functional length of device, the deformation of E shape dissipative cell is limited can not continuing to develop, this
When three limbs of E shape dissipative cell be stuck at the maximum functional displacement of device due to the effect of high-strength bolt, whole device phase
When in a connection key constraint pier and beam（Or platform and beam）, limit Dun Liang（Or platform beam）Between relative displacement, thus effectively preventing
Fall the generation of beam.
The plastic deformation earthquake energy of described utilization E shape dissipative cell 3.
After the described relative displacement when device reaches the total displacement of its design, constrain pier and beam（Or platform and beam）Between
Relative displacement, thus the generation of restrainer.
Described utilization E shape dissipative cell 3 adopts domestic common Q 235 steel.
Described not active length refers to ensure that bridge is not filled by novel energy-consumption girder falling in the function of serviceability limit stage
The impact put, makes the length that device is not had an effect under little shake acts on simultaneously, and this length can be adjusted, and so that device is shaken big
Give full play to power consumption and position-limiting action under effect, can be not only used for vertical bridge to can be used for direction across bridge again.
Described anti-fall girder apparatus realize being connected of pier or platform and beam by high-strength bolt, are repaired after shake with facilitating.
The present invention has the following advantages compared to existing technology：
The present invention limits by using the plastic deformation earthquake energy of E shape dissipative cell, the perforate length using connecting plate
Pier processed（Platform）Relative displacement between beam, thus the generation of restrainer.Device have simple structure, version rationally, take
The features such as material is easy, energy-dissipating property is excellent.Do not have an effect under little shake effect, and bridge structure is not subject to temperature, creeps and receive
The impact of contracting, does not interfere with the stress of structure；Under big shake effect, when the relative displacement of Dun Liang or platform beam exceedes device
Not after active length, with the increase of relative displacement, anti-fall girder apparatus start gradually to develop into plastic deformation from elastic deformation, send out
Wave power consumption effect, reduce the earthquake response of structure.If the relative displacement of Dun Liang or platform beam exceedes the maximum functional displacement of device, dress
Put and will be equivalent to the key that is rigidly connected, girder and pier or platform constraint limit the increase of relative displacement, thus the sending out of restrainer
Raw.
The present invention efficiently solves the deficiency of existing anti-fall girder apparatus, and simple structure, version rationally, be manufactured into
This is low, be easily installed when replacings, tension and compression and all can consume energy and energy-dissipating property is excellent, restriction pier（Platform）The spies such as the relative displacement between beam
Point.
The present invention, can be by adjusting the parameters such as quantity, the physical dimension of E shape dissipative cell in actual engineering design
Produce the energy-dissipating type girder falling series dress of the mechanical property parameters such as different initial stiffnesses, initial yield displacement and energy dissipation capacity
Put.
The present invention have simple structure, version rationally, low cost of manufacture, to be easily installed replacing, energy-dissipating property excellent
The features such as, have a good application prospect.
Brief description
Fig. 1 is the perspective view of the present invention.
Fig. 2 is the structural representation of the connecting plate A of the present invention.
Fig. 3 is the structural representation of the connecting plate B of the present invention.
In figure：1 connecting plate A；2 connecting plate B；3 E shape dissipative cells；4 high-strength bolts；5 girders are pre-
Embedded part；6 pier built-in fittings；7- constrains slotted eye；8- constrains slotted eye B, 9- screw or through hole.
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples.
As shown in accompanying drawing 1-3.
A kind of novel energy-consumption anti-fall girder apparatus, it includes connecting plate A1, connecting plate B2, E shape dissipative cell 3（Can adopt
With metal material, such as domestic common Q 235 steel）, high-strength bolt 4（Standard component）, girder built-in fitting 5 and pier built-in fitting
6, as shown in Fig. 1, connecting plate B2 is provided with constraint slotted eye 7, and as shown in Fig. 3, connecting plate A1 is provided with constraint slotted eye
B8 and screw or through hole 9, as shown in Fig. 2, described connecting plate B2 are machined with outstanding with E shape dissipative cell 3
The constraint slotted eye 7 that arm limb quantity, position match, and the length of intermediate restraint slotted eye 7 is less than the length that two ends constrain slotted eye 7,
The length of intermediate restraint slotted eye 7 is matched or equal with not active length, and described connecting plate A1 is machined with and connecting plate
The corresponding constraint slotted eye B8 of B2, the length of this constraint slotted eye B8 should be matched or equal with not active length, in restraint slot
The through hole being respectively arranged at the two ends with for installing high-strength bolt 4 of hole B8 or screw 9, high-strength bolt 4 passes through connecting plate B2
With the constraint slotted eye of connecting plate A1, E shape dissipative cell 3 is connected with connecting plate A1, connecting plate B2, connecting plate A1 from
It is hinged and connected with pier built-in fitting 6 with by high-strength bolt 4 by end, the free end of connecting plate B2 is cut with scissors with girder built-in fitting 5
Connect connected.As shown in Fig. 1, when being embodied as, in order to constrain E shape dissipative cell 3, described connecting plate B2 processes
There are two row's constraint slotted eyes 7, described E shape dissipative cell 3 is symmetrically mounted on the two of connecting plate A1 and connecting plate B2
Side, additionally, connecting plate B2 is it can also be designed U type structure, connecting plate A1 may be designed to string configuration, string configuration
One end of connecting plate A1 is inserted in the connecting plate B2 of U type structure；Similarly, in order to increase energy dissipation capacity, described E
Shape dissipative cell 3 can be formed by stacking by multi-disc, and they are located at the one or both sides of connecting plate A1.
The novel energy-consumption anti-fall girder apparatus of the present invention, similar to displacement type antivibrator, are to rely on steel to bend under external force
Clothes enter the continuous energy absorption of mecystasises, finally lean on the interconnection function of connecting plate, limit pier（Platform）Beam relative displacement continues to increase
Greatly, restrainer.In order that bridge structure not because temperature, creep and effect of contraction and so that the stress of structure is changed
Become, and ensure that device does not play a role under little shake acts on, device devises not active length.
The present invention connects pier by pier beam built-in fitting（Platform）Beam, as shown in Fig. 1, several E shape dissipative cell groups are combined in
Together, it is arranged on pier（Platform）Between beam.The two ends limb of E shape dissipative cell 3 is fixed on connecting plate A1 by high-strength bolt 4
On, after the relative displacement of connecting plate A1 and connecting plate B2 exceedes the not active length of anti-fall girder apparatus, E shape power consumption unit
The middle limb of part 3, due to the effect of high-strength bolt 4, will be stuck in not at active length position, and two side ends limb still can continue
Continuous deformation, with the continuous increase of relative displacement, the plastic deformation area of E shape dissipative cell 3 is also increasing, gradually sends out
Wave power consumption effect.After the relative displacement of connecting plate A1 and connecting plate B2 reaches the maximum functional length of device, E shape consumes
Bigger deformation can no longer element 3 occur, now 3 three limbs of E shape dissipative cell are because the effect of high-strength bolt is by card
At the maximum functional displacement of device, be equivalent to one and connect key constraint pier and beam（Or platform and beam）, limit Dun Liang（Or platform beam）
Between relative displacement continuation increase, the generation of final restrainer.
The present invention, by the difference to slotting length in connecting plate, devises not active length, eliminate temperature, creep and
The impact of the factors such as contraction, and ensure that device does not play a role under little shake acts on, seismic force is undertaken by structure itself.Big shake is made
With under, work as pier（Platform）After relative displacement between beam exceedes the overall design displacement of device, play spacing effect, limit further
Pier（Platform）The continuation of beam relative displacement increases.
Compared with the present invention drag-line anti-fall girder apparatus more with current application and oil damper energy-dissipating device, drag-line is prevented
Fall girder apparatus are only in pier（Platform）Relative displacement between beam exceedes it and does not just have an effect after active length, and can only play limit
Position effect, though oil damper can produce power consumption effect, because it is also easy to produce the costliness of oil leakage phenomenon and its price, hardly results in
It is widely applied.And the present invention solves the deficiency of existing anti-fall girder apparatus, and simple structure, version rationally, manufacture
Low cost, it is easily installed when replacing, tension and compression and all to consume energy and energy-dissipating property is excellent, restriction pier（Platform）Relative displacement between beam etc.
Feature.
The novel energy-consumption anti-fall girder apparatus of the present invention can be used for the girder falling longitudinally, laterally of bridge, is additional to bridge knot
To protect the safety of bridge as energy-dissipating and shock-absorbing and limit component in structure.Above example technology only to illustrate the invention is thought
Think it is impossible to protection scope of the present invention is limited with this, every according to technological thought proposed by the present invention, on technical scheme basis
On any change of being done, each fall within the scope of the present invention；The technology that the present invention is not directed to all can be by existing skill
Art is realized.
Claims (7)
1. a kind of novel energy-consumption anti-fall girder apparatus, is characterized in that it includes connecting plate A（1）, connecting plate B（2）, E shape power consumption unit
Part（3）, high-strength bolt（4）, girder built-in fitting（5）, pier built-in fitting（6）, connecting plate B（2）Constraint slotted eye（7）With connecting plate A
（1）Constraint slotted eye（8）, described connecting plate B（2）On be machined with and E shape dissipative cell（3）Cantilever limb quantity, position
The constraint slotted eye matching（7）, and the constraint slotted eye of centre（7）Length be less than two ends constrain slotted eye（7）Length；Described company
Fishplate bar A（1）Go up and connecting plate B（2）On intermediate restraint slotted eye（7）Relative position is machined with restraint slot B matching（8）,
Constrain slotted eye with two ends（7）Screw or through hole that relative position processing matches（9）；Connecting plate B（2）, connecting plate A（1）
With E shape dissipative cell（3）By high-strength bolt（4）It is connected, connecting plate A（1）Free end pass through high-strength bolt（4）With pier
Built-in fitting（6）It is hinged and connected, connecting plate B（2）Free end and girder built-in fitting（5）It is hinged and connected；Described E shape dissipative cell
（3）Two ends limb pass through high-strength bolt（4）It is fixed on connecting plate A（1）On, as connecting plate A（1）With connecting plate B（2）Phase
After displacement is exceeded with the not active length of anti-fall girder apparatus, E shape dissipative cell（3）Middle limb will be stuck in not active length
At position, but two end limbs can deform, with the continuous increase of middle limb and end limb relative displacement, E shape dissipative cell
（3）It is transitioned into plastic deformation from elastic deformation, gradually play power consumption effect；As connecting plate A（1）With connection B（2）Relative position
After shifting reaches the maximum functional length of device, E shape dissipative cell（3）Deformation be limited continuing developing, now E
Shape dissipative cell（3）Three limbs are due to high-strength bolt（4）Effect be stuck at the maximum functional displacement of device, whole device phase
When connecting key constraint pier and beam in one, or be equivalent to one and connect key constraint platform and beam, limit between Dun Liang or platform beam relatively
Displacement, thus the generation of effective restrainer.
2. the novel energy-consumption anti-fall girder apparatus according to claim 1, is characterized in that described connecting plate B（2）Upper processing
There are two row's constraint slotted eyes（7）, described connecting plate A（1）On be also machined with two rows and connecting plate B（2）On middle slotted eye phase
Corresponding constraint slotted eye B（8）, described E shape dissipative cell（3）It is symmetrically mounted on connecting plate A（1）With connecting plate B（2）
Both sides.
3. the novel energy-consumption anti-fall girder apparatus according to claim 1 or 2, is characterized in that described connecting plate B（2）
In U type structure, connecting plate A（1）Elongated structure, string configuration connecting plate A（1）One end insertion U type structure
Connecting plate B（2）In.
4. the novel energy-consumption anti-fall girder apparatus according to claim 1 or 2, is characterized in that described E shape dissipative cell
（3）It is formed by stacking by multi-disc, they are located at connecting plate A（1）One or both sides.
5. the novel energy-consumption anti-fall girder apparatus according to claim 1 are it is characterised in that described E shape dissipative cell
（3）Using domestic common Q 235 steel.
6. the novel energy-consumption anti-fall girder apparatus according to claim 1, is characterized in that described not active length refers to protect
Card bridge is not affected by novel energy-consumption anti-fall girder apparatus in the function of serviceability limit stage, so that device is acted in little shake simultaneously
Under the length do not had an effect, this length can be adjusted, and makes device give full play to power consumption and position-limiting action under big shake acts on, both
Can be used for indulging bridge to can be used for direction across bridge again.
7. the novel energy-consumption anti-fall girder apparatus according to claim 1, is characterized in that described anti-fall girder apparatus pass through height
Strength bolt realizes being connected of pier or platform and beam, is repaired after shake with facilitating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610918359.6A CN106381803A (en) | 2016-10-21 | 2016-10-21 | Novel energy-dissipation anti-dropping beam device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610918359.6A CN106381803A (en) | 2016-10-21 | 2016-10-21 | Novel energy-dissipation anti-dropping beam device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106381803A true CN106381803A (en) | 2017-02-08 |
Family
ID=57958070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610918359.6A Withdrawn CN106381803A (en) | 2016-10-21 | 2016-10-21 | Novel energy-dissipation anti-dropping beam device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106381803A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106835957A (en) * | 2017-04-06 | 2017-06-13 | 四川交通职业技术学院 | The narrow bridge high-performance anti-seismic continuous rigid frame structural system of high-block bridge |
-
2016
- 2016-10-21 CN CN201610918359.6A patent/CN106381803A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106835957A (en) * | 2017-04-06 | 2017-06-13 | 四川交通职业技术学院 | The narrow bridge high-performance anti-seismic continuous rigid frame structural system of high-block bridge |
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| PB01 | Publication | ||
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| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20170208 |