CN106567326A - Parallel double-rope type damping block having self-reset function - Google Patents
Parallel double-rope type damping block having self-reset function Download PDFInfo
- Publication number
- CN106567326A CN106567326A CN201611001781.1A CN201611001781A CN106567326A CN 106567326 A CN106567326 A CN 106567326A CN 201611001781 A CN201611001781 A CN 201611001781A CN 106567326 A CN106567326 A CN 106567326A
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- block
- bridge
- bridge superstructure
- rope
- blocks
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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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
- E01D19/041—Elastomeric bearings
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses a parallel double-rope type damping block having a self-reset function. The block comprises a cover beam, a plate-shaped rubber support seat and a bridge superstructure. The plate-shaped rubber support seat is fixed on the cover beam through a support seat cushion block and is supported under the bridge superstructure. Locks fixed on the cover beam are respectively arranged on two sides of the bridge superstructure. A prestress steel strand and an energy consuming rope are anchored between the blocks on the two sides. Rubber blocks are arranged on inner sides of the blocks and the outer side of the bridge superstructure corresponding to the inner sides of the blocks. According to the invention, when the blocks are deformed, the high-resistance energy-consuming rope dissipates earthquake energy, thereby achieving a buffering protection function for the blocks, so problems of beam falling and earthquake damage in the transverse direction of the bridge of simply supported beam bridges in a high intensity region are solved, and the whole earthquake resisting performance level of this kind of bridge is remarkably increased.
Description
Technical field
The present invention relates to bridge earthquake resistance and bridge subtract technical field of isolation, specially a kind of parallel connection with runback bit function
Double cable-styled shock-absorption dogs.
Background technology
Traffic is the lifeblood of national economy, and bridge is the lifeline engineering of transportation.Under geological process, bridge will
, to being acted on direction across bridge component, there is following potential safety hazard under direction across bridge geological process along bridge by horizontal earthquake：Bridge
Beam superstructure will collide with the block at bent cap two ends, and block will occur failure by shear, cause bridge superstructure cross-bridges
To the beam earthquake that falls.
At present, solve bridge superstructure mainly has two kinds in the method for geological process whereabouts beam earthquake, and one kind is to increase
The physical dimension and the ratio of reinforcement of block is come directly against geological process, and another kind is, energy dissipation capacity strong new good using ductility
Fibrous material pours block.It was verified that the block that two methods make all there occurs failure by shear under rarely occurred earthquake effect,
And cause superstructure to fall the generation of beam accident.
According to a large amount of domestic and abroad bridge antidetonations, subtracting shock insulation can with regard to horizontal block patent and the engineering experience in practice of construction
Know the horizontal block field fabrication complex process with runback bit function, difficulty of construction is big and construction costs is high.
The content of the invention
For the problems referred to above, it is an object of the invention to provide a kind of double cable-styled damping gears of parallel connection with runback bit function
Block, it can be ensured that geological process backstop Self-resetting, prevents bridge lateral from falling the generation of beam, while also can reduce being repaired after bridge shake
Expense.Technical scheme is as follows：
A kind of cable-styled shock-absorption dog of parallel connection pair with runback bit function, including bent cap, laminated rubber bearing and bridge top knot
Structure, laminated rubber bearing is fixed on bent cap by bearing cushion block, and is supported in the lower section of bridge superstructure；Tie on bridge top
Structure both sides respectively set a block being fixed on bent cap, and a prestress wire and a power consumption rope are anchored between the block of both sides；
Block rubber is equipped with the outside of the inner side of the block, and the bridge superstructure corresponding with block inner side.
Further, steel built-in fitting is provided with the outside of the block, steel built-in fitting is provided with for anchoring power consumption rope and applying
The duct of the prestress wire of prestressed load.
Further, block inner side arrange for wedge shape rubber block, itself and bridge superstructure outer rubber block
Contact surface be parallel to each other.
Further, the power consumption Suo Caiyong damping ratios are made up of 0.03 ~ 0.05 damping material.
Further, the distance between the prestress wire and power consumption rope is 8 ~ 15cm.
Further, the parallel distance of the rubber block part that the block inner side is arranged with bridge superstructure outside is 15
~25 cm。
The invention has the beneficial effects as follows：
1）The present invention can realize multistage Aseismic Design, and when bridge structure is acted on by small earthquakes, bridge superstructure is sent out
Raw lateral shift, because prestressed cable is connected to horizontal two blocks joint opposing seismic force, now beam body will occur with block
Slight collision, and block and Beam pounding contact surface post rubber and also can dissipate seismic energy, can play cushioning effect；
When bridge structure is subject to big shake to act on, beam body lateral shift and Impact energy are all larger, the high-damping power consumption rope for now arranging
To play a role, beam body strikes the energy of block and absorbed by the rope that consumes energy, the further deformation of limit stop, on reducing
The lateral shift of portion's structure, it is ensured that bridge superstructure is not in the beam accident that falls, and the rigging that consumes energy has spring mechanical performance
Shake backstop Self-resetting can be made；
2）The prestressed cable of the present invention, high-damping power consumption rope and rubber cushion blocks define multiple power consumption vibration-isolating system, common to dissipate
Seismic energy, reduces the collsion damage of block and beam body, improves shock resistance of the bridge in direction across bridge；
3）Clearly, horizontal block is connected the whole stop system force modes of the present invention by two two ropes, during Bridge Design
More can accurately simulate and calculate impact force；
4）The present invention has the preferably suitability to different bridge types and grade bridge of providing fortification against earthquakes, can be by adjusting prestressed cable
Beam number with power consumption the rope damping parameter different earthquake resistant engineerings of satisfaction design requirement；
5）The features such as present invention also has simple structure, easy construction, low engineering cost.
Description of the drawings
Fig. 1 is the structural representation of the double cable-styled shock-absorption dogs of parallel connection of the present invention with runback bit function.
Fig. 2 is the horizontal section schematic diagram in Fig. 1 at A-A.
Fig. 3 is the enlarged drawing in Fig. 1 at B.
In figure：1- bent caps；2- bearing cushion blocks；3- bridge superstructures；4- blocks；5- laminated rubber bearings；6- wedge shape rubbers
Blob of viscose；7- ducts；8- steel built-in fittings；9- anchor plates；10- anchorages；11- prestress wires；12- power consumption ropes.
Specific embodiment
The effect of the design, concrete structure and generation of the present invention is described further below with reference to accompanying drawing, with abundant
Understand the purpose of the present invention, feature and effect.As Figure 1-3, the double cable-styled damping gears of a kind of parallel connection with runback bit function
Block, it is characterised in that including bent cap 1, laminated rubber bearing 5 and bridge superstructure 3, laminated rubber bearing 5 is by a seat cushion
Block 2 is fixed on bent cap 1, and is supported in the lower section of bridge superstructure 3；The both sides of bridge superstructure 3 respectively set one and are fixed on
Block 4 on bent cap 1, anchors a prestress wire 11 and a power consumption rope 12 between both sides block 4；The block 4 it is interior
Side, and the outside of the bridge superstructure 3 corresponding with the inner side of block 4 is equipped with block rubber.
The outside of the block 4 of the present embodiment is provided with steel built-in fitting 8, and steel built-in fitting 8 is provided with for anchoring power consumption rope 12 and applies
The duct 7 of the prestress wire 11 of prestressed load is added.Specifically, block 4, need to be in block 4 during construction casting
The pre-buried cm steel plates of one piece of thickness about 3 ~ 4 in outside, upper end flushes with the level of block 4, lower end beyond the power consumption cm of rope about 12 ~ 15,
Steel plate transverse width about 30cm.Two ends block 4 needs each reserved two ducts 7, the cm of aperture about 10, for wearing prestress wire
11 and power consumption rope 12.Treat that the concrete curing age of block 4 reaches, you can prestressed load is applied to prestress wire 11,
The outer setting anchor plate 9 of block 4 and anchorage 10 are anchored, and to carrying out slip casting in reserved duct 7（Cement mortar）And anchored end
Head carries out sealing off and covering anchorage.High-drag power consumption rope 12 is essentially identical with the construction technology of prestress wire 11, and unique difference is to consume energy rope not
Need to apply prestressed load, only need to carry out anchor connection with block 4.
The single beam diameter of prestress wire 11 of the present embodiment is 15.24 mm, and tensile strength is 1860MPa；Power consumption rope 12
Adopt damping ratio and be made up of 0.03 ~ 0.05 damping material, the distance between prestress wire 11 and power consumption rope 12 is 8 ~ 15cm,
That is the distance in Fig. 3 shown in L1.
After the completion for the treatment of above-mentioned operation, then rubber cushion blocks, and block 4 are arranged to the outside of superstructure beam body 3 and the inner side of block 4
The rubber cushion blocks of inner side need to cut into wedge shape rubber block 6, the inner side of the present embodiment block 4 for wedge shape rubber block 6 and bridge top
The contact surface of the outer rubber block of structure 3 is parallel to each other, i.e., the contact surface of two rubber cushion blocks is equal with the angle that horizontal plane is formed, can
Ensure that two rubber cushion blocks contacts area are maximum during earthquake.The rubber block part that the inner side of block 4 is arranged with the outside of bridge superstructure 3
Parallel distance is the distance in 15 ~ 25 cm, i.e. Fig. 3 shown in L2.
The Antivibration block construction of the present embodiment also apply be applicable at abutment position.
When bridge structure during normal use, act on because of load or by small earthquakes, and the bridge superstructure for causing
When there is certain transverse shift, the horizontal block 4 on bent cap 1 by prestress wire 11 due to being anchored so that two
Individual horizontal block can jointly resist earthquake load, and now beam body will occur slight collision, and block 4 and beam body with block
Making contact face is posted rubber cushion blocks and also can be dissipated seismic energy, plays cushioning effect, and now two blocks 4 are in elastic force balance
State, basic not damaged.
When bridge structure is subject to rarely occurred earthquake（Big shake）During effect, the lateral displacement of bridge superstructure 3 and Impact energy are all
It is larger, the elastic deformability of prestress wire 11 will be exceeded, now the power consumption rope 12 of high-damping will play mastery reaction, beam
Body strikes the energy of block 4 and is absorbed by the rope 12 that consumes energy, the further deformation of limit stop 4, so as to reduce bridge top knot
The lateral shift of structure 3, it is ensured that bridge superstructure 3 is not in the beam accident that falls, and the rope 12 that consumes energy is with spring mechanical performance,
Shake backstop 4 can be made to reset in time.When bridge superstructure swings back and forth in direction across bridge, prestress wire 11, power consumption
Rope 12 and horizontal block 4 interact, and power consumption rope 12 will alternately absorb and dissipation seismic energy, ingenious to be transformed into seismic energy
On energy-consuming parts, the anti-seismic performance of bridge is significantly improved.
Claims (6)
1. a kind of double cable-styled shock-absorption dogs of parallel connection with runback bit function, it is characterised in that including bent cap（1）, board-like rubber
Bearing（5）And bridge superstructure（3）, laminated rubber bearing（5）By bearing cushion block（2）It is fixed on bent cap（1）On, and support
In bridge superstructure（3）Lower section；Bridge superstructure（3）Both sides respectively set one and are fixed on bent cap（1）On block（4）,
Both sides block（4）Between anchor a prestress wire（11）With a power consumption rope（12）；The block（4）Inner side, and with
Block（4）The corresponding bridge superstructure in inner side（3）Outside be equipped with block rubber.
2. double cable-styled shock-absorption dogs of parallel connection with runback bit function according to claim 1, it is characterised in that the gear
Block（4）Outside be provided with steel built-in fitting（8）, steel built-in fitting（8）It is provided with for anchoring power consumption rope（12）Be applied with prestressing force lotus
The prestress wire of load（11）Duct（7）.
3. double cable-styled shock-absorption dogs of parallel connection with runback bit function according to claim 1, it is characterised in that the gear
Block（4）Inner side arrange for wedge shape rubber block（6）, itself and bridge superstructure（3）The contact surface of outer rubber block is parallel to each other.
4. double cable-styled shock-absorption dogs of parallel connection with runback bit function according to claim 1, it is characterised in that the consumption
Can rope（12）Adopt damping ratio and be made up of 0.03 ~ 0.05 damping material.
5. double cable-styled shock-absorption dogs of parallel connection with runback bit function according to claim 1, it is characterised in that described pre-
Prestress steel strand（11）With power consumption rope（12）Between distance be 8 ~ 15cm.
6. double cable-styled shock-absorption dogs of parallel connection with runback bit function according to claim 1, it is characterised in that the gear
Block（4）Inner side and bridge superstructure（3）The parallel distance of the rubber block part that outside is arranged is 15 ~ 25 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611001781.1A CN106567326A (en) | 2016-11-14 | 2016-11-14 | Parallel double-rope type damping block having self-reset function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611001781.1A CN106567326A (en) | 2016-11-14 | 2016-11-14 | Parallel double-rope type damping block having self-reset function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106567326A true CN106567326A (en) | 2017-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611001781.1A Pending CN106567326A (en) | 2016-11-14 | 2016-11-14 | Parallel double-rope type damping block having self-reset function |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442238A (en) * | 2018-05-28 | 2018-08-24 | 湘潭大学 | A kind of transverse direction assembled runback bit-type Antivibration block and its construction method |
| CN108978446A (en) * | 2018-09-28 | 2018-12-11 | 武汉理工大学 | A kind of Self-resetting energy-dissipation structure suitable for bridge |
| CN109778722A (en) * | 2019-04-01 | 2019-05-21 | 重庆交通大学 | A kind of T-type Bridge Seismic method |
| CN110541351A (en) * | 2019-09-30 | 2019-12-06 | 北方工业大学 | anti-seismic device and bridge |
| CN110777682A (en) * | 2019-12-06 | 2020-02-11 | 湘潭大学 | Anti-seismic reinforcing method for bridge transverse stop block |
| CN111827088A (en) * | 2020-08-06 | 2020-10-27 | 广州大学 | SMA prevents roof beam device that falls |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004068395A (en) * | 2002-08-06 | 2004-03-04 | Kawaguchi Metal Industries Co Ltd | Track girder fall preventing device in saddle type monorail |
| CN103643624A (en) * | 2013-12-19 | 2014-03-19 | 清华大学 | Function-restorable bridge |
| CN103966946A (en) * | 2014-05-20 | 2014-08-06 | 上海市城市建设设计研究总院 | Spring rubber seismic reduction and isolation system of bridge |
| CN204370294U (en) * | 2014-12-14 | 2015-06-03 | 王琪 | The double-deck slip-off preventing rubber cushion blocks of a kind of bridge |
| CN204644859U (en) * | 2015-04-08 | 2015-09-16 | 山西省交通科学研究院 | A kind of embedded bridge shock-proof check block system |
| CN105862571A (en) * | 2016-05-27 | 2016-08-17 | 长安大学 | Bridge anti-seismic and anti-overturning construction and bridge anti-seismic and anti-overturning method |
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2016
- 2016-11-14 CN CN201611001781.1A patent/CN106567326A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004068395A (en) * | 2002-08-06 | 2004-03-04 | Kawaguchi Metal Industries Co Ltd | Track girder fall preventing device in saddle type monorail |
| CN103643624A (en) * | 2013-12-19 | 2014-03-19 | 清华大学 | Function-restorable bridge |
| CN103966946A (en) * | 2014-05-20 | 2014-08-06 | 上海市城市建设设计研究总院 | Spring rubber seismic reduction and isolation system of bridge |
| CN204370294U (en) * | 2014-12-14 | 2015-06-03 | 王琪 | The double-deck slip-off preventing rubber cushion blocks of a kind of bridge |
| CN204644859U (en) * | 2015-04-08 | 2015-09-16 | 山西省交通科学研究院 | A kind of embedded bridge shock-proof check block system |
| CN105862571A (en) * | 2016-05-27 | 2016-08-17 | 长安大学 | Bridge anti-seismic and anti-overturning construction and bridge anti-seismic and anti-overturning method |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442238A (en) * | 2018-05-28 | 2018-08-24 | 湘潭大学 | A kind of transverse direction assembled runback bit-type Antivibration block and its construction method |
| CN108442238B (en) * | 2018-05-28 | 2023-09-19 | 湘潭大学 | Transverse assembly type self-resetting anti-seismic stop block and construction method thereof |
| CN108978446A (en) * | 2018-09-28 | 2018-12-11 | 武汉理工大学 | A kind of Self-resetting energy-dissipation structure suitable for bridge |
| CN108978446B (en) * | 2018-09-28 | 2024-04-12 | 武汉理工大学 | Self-resetting energy consumption structure suitable for bridge |
| CN109778722A (en) * | 2019-04-01 | 2019-05-21 | 重庆交通大学 | A kind of T-type Bridge Seismic method |
| CN110541351A (en) * | 2019-09-30 | 2019-12-06 | 北方工业大学 | anti-seismic device and bridge |
| CN110777682A (en) * | 2019-12-06 | 2020-02-11 | 湘潭大学 | Anti-seismic reinforcing method for bridge transverse stop block |
| CN111827088A (en) * | 2020-08-06 | 2020-10-27 | 广州大学 | SMA prevents roof beam device that falls |
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Application publication date: 20170419 |