CN205874956U - Bridge anti -seismic dog structure of buffering energy dissipation - Google Patents
Bridge anti -seismic dog structure of buffering energy dissipation Download PDFInfo
- Publication number
- CN205874956U CN205874956U CN201620647474.XU CN201620647474U CN205874956U CN 205874956 U CN205874956 U CN 205874956U CN 201620647474 U CN201620647474 U CN 201620647474U CN 205874956 U CN205874956 U CN 205874956U
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- reinforcing bar
- seismic
- bridge
- wave
- beam body
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Abstract
The utility model discloses a bridge anti -seismic dog structure of buffering energy dissipation, the bent cap both ends are provided with concrete anti -seismic stopping block respectively, a plurality of wavy reinforcing bars are straight, and the section tip builds in in concrete anti -seismic stopping block, and the wave mode part of reinforcing bar is exposed between dog surface and the external surface of roof beam, on the roof beam body built -in fitting with wavy reinforcing bar correspond the position welding have one and wavy reinforcing bar looks vertically steel sheet, wrap up one deck rubber on the bare portion of wavy reinforcing bar and the steel sheet cantilever end tip. The utility model discloses a bending deformation of a plurality of wavy reinforcing bars and outer rubber coating layer can weaken the horizontal bridge of the seismic action underbeam body very effectively and to the displacement to the striking effect of bridge anti -seismic dog and the seismic energy that dissipates when too big, reduce the emergence of the roof beam accident that falls, and this antidetonation to whole bridge structures is that the ten minutes is favorable.
Description
Technical field
The present invention relates to bridge earthquake resistance and bridge subtracts the technical field of shock insulation, resist particularly to a kind of bridge buffering energy dissipating
Shake block structure.
Background technology
China experienced by violent earthquake several times in recent years, subtracts isolation measure due to different types of rridges or tectonic sieving is unreasonable and cause
Making bridge structure produce damage even occurs calamitous collapse accident the most of common occurrence, and the rescue of earthquake-stricken area will be rebuild work by this
Produce serious influence, increase maintenance and reinforcement expense after shake, the most how to ensure that bridge structure meets " no damage in small earthquake, middle shake
Can repair, no collapsing with strong earthquake " be the most all the hot subject of science of bridge building research, and then reach to reduce earthquake disaster and bring
Directly and indirect economic loss.
Under strong earthquake motion effect, beam body is easily generated bigger direction across bridge displacement, if not setting on horizontal block
Putting rationally effective buffering energy dissipating structure, easily cause block local and be damaged beam accident even occurs laterally to fall, this is inevitable
Ground is by maintenance and reinforcement expense after increase shake, and its main cause is that the effect of impact of block is not obtained by beam body under geological process
Effective buffering or reduction, the energy in knockout process is not the most dissipated simultaneously.
The applicant is by finding a lot of bridge after reading a large amount of domestic and foreign literatures and bridge earthquake resistance, subtracting the patent in terms of shock insulation
Beam seismic isolation device is all from Antivibration block self, seldom set up from Antivibration block buffering energy dissipating anti-seismic construction in terms of
Hands, the manufacturing process of these devices is more complicated and cost is higher simultaneously.Delay in consideration of it, the applicant is devoted to exploitation one always
Rush the bridge shock-proof check block structure of energy dissipating, it is achieved under strong earthquake motion effect, this structure can effectively weaken beam
Body, to the effect of impact of Antivibration block the seismic energy that dissipates, the direction across bridge displacement that constraint beam body is excessive, reduces direction across bridge and falls beam
The generation of accident, it is ensured that the unimpeded and reduction shake axle casing structural repair of whole earthquake relief work lifeline engineering reinforces expense.
Summary of the invention
In view of prior art and device, the above-mentioned deficiency of structure, the present invention proposes a kind of realization in strong earthquake motion
The lower beam body that can effectively weaken of effect is to the effect of impact of Antivibration block the seismic energy that dissipates, and constraint beam body is excessive
Direction across bridge displacement, reduces direction across bridge and falls the generation of beam accident, it is ensured that whole earthquake relief work lifeline engineering unimpeded and reduce shake
Axle casing structural repair reinforces the bridge shock-proof check block structure of the buffering energy dissipating of expense.
For reaching above-mentioned purpose, the invention provides a kind of bridge shock-proof check block buffering energy dissipating and construct:
A kind of bridge shock-proof check block structure buffering energy dissipating, is arranged on the joint portion of bent cap and beam body.Set on bent cap end face
Being equipped with vibration absorption and isolation support, beam body is supported on described vibration absorption and isolation support, and bent cap both ends are respectively arranged with concrete anti-earthquake baffle block；
Some wave reinforcing bar flat segments ends build-in is in concrete anti-earthquake baffle block, and the wave partial denudation of reinforcing bar is in block appearance
Between face and beam body outer surface；It is welded with one piece and described wave reinforcing bar with wave reinforcing bar corresponding position on beam body built-in fitting
Perpendicular steel plate；One layer of rubber is wrapped up on the exposed part of wave reinforcing bar and steel plate cantilever end end.
Further, described wave reinforcing bar exposed part becomes " M " shape, described reinforcing bar flat segments end and concrete anti-earthquake
In block, the reinforcing bar of configuration couples.Before described concrete anti-earthquake baffle block pours, described wave reinforcing bar flat segments end should be first
Together with the reinforcing bar binding of configuration in concrete anti-earthquake baffle block, described wave reinforcing bar exposed part becomes M shape.
Further, the rubber layer described wave reinforcing bar and described steel plate wrapped up is in Antivibration block concreting
The most all can carry out, described outpacking rubber layer can be bonding etc. exposed with described wave reinforcing bar by finer wire colligation or glue
Part is fixed together.
Further, described steel plate cantilever end end portion width is more than the dispersion of distribution of described wave reinforcing bar.
The bridge shock-proof check block of buffering energy dissipating provided by the present invention constructs compared with prior art, has following useful effect
Really:
1) due to the fact that and be provided with wave reinforcing bar, under strong earthquake motion effect beam body along direction across bridge move time beam body
On built-in fitting, first the steel plate of welding contacts with wave reinforcing bar outpacking rubber layer, can play beam body effect of impact well
Buffering effect, simultaneously because wave reinforcing bar exists initial flexural deformation, wave reinforcing bar is in whole Antivibration block constructs
Become vulnerable area, can occur bending and deformation further in steel plate is to the knockout process of wave reinforcing bar, dissipation seismic energy
Amount, and also beam body shock is served cushioning effect just as resilient support, earthquake work when wave reinforcing bar occurs bending and deformation
Can further be reduced by the effect of impact of lower beam body with block, concrete anti-earthquake baffle block is served by whole process
Well buffer and protective effect, and the rubber layer also having given full play to the preferable ductility of reinforcing bar and parcel carrys out buffering collision of closed and makees
With with dissipation seismic energy.
2) buffering effect of the present invention can be adjusted by changing wave reinforcement parameter etc., with satisfied different bridge knots
The antidetonation demand of structure.
3) construction of the present invention is convenient, and cost is relatively low, has bigger engineer applied and is worth.
Accompanying drawing explanation
Fig. 1 is the structural reference figure of the bridge shock-proof check block structure of specific embodiment buffering energy dissipating；
Fig. 2 is the Section A-A schematic diagram of Fig. 1；
Fig. 3 is enlarged diagram at the B of Fig. 1.
Fig. 4 is the reinforcing bar section enlarged diagram of the wave reinforcing bar parcel rubber layer part of Fig. 1.
Detailed description of the invention
Below in conjunction with the accompanying drawings the technique effect of design, detail and the acquisition of the present invention is described further.
Fig. 1 show schematically show the bridge shock-proof check block structure of the buffering energy dissipating according to one embodiment of the present invention
Make.As shown in Fig. 1 Fig. 4, this bridge shock-proof check block includes bent cap 1, beam body 2, some wave reinforcing bars 3, the top of described bent cap 1
Being provided with vibration absorption and isolation support 4 on face, described beam body 2 is supported on described vibration absorption and isolation support 4, in the two end portions of described bent cap 1
Not being provided with concrete anti-earthquake baffle block 5, the flat segments end build-in of described wave reinforcing bar 3 is in described Antivibration block 5, in institute
State and on beam body built-in fitting 6, be welded with one block of steel plate 7 vertical with described wave reinforcing bar, exposed at described wave reinforcing bar 3
One layer of rubber 8 is wrapped up on the cantilever end end of part and described steel plate 7.
Concrete, according to the actual antidetonation of bridge structure or the needs of seismic isolation design, in advance by certain length, quantity, straight
The shape of wave is curved as it is shown on figure 3, be fixed on wave reinforcing bar 3 by rubber layer 8 with finer wire, then in the middle part of the reinforcing bar in footpath
By wave reinforcing bar flat segments end together with the reinforcing bar binding of configuration in block, last casting concrete forms band wave
The bridge shock-proof check block of reinforcing bar, then welds one block of steel plate vertical with wave reinforcing bar on beam body built-in fitting, and steel plate is in
Wave trough position, and one layer of rubber is wrapped up in steel plate cantilever end end, the most just define the bridge shock-proof check block structure of buffering energy dissipating
Make.Present configuration is simple, and Path of Force Transfer is clear and definite, convenient and quick construction, can reach effectively buffering by rational computational analysis
The bridge beam body effect of impact to horizontal block, thus improve the overall anti-seismic performance of bridge structure.
In other specific embodiments, the steel plate of the present embodiment can be replaced wave reinforcing bar.The vertical bridge of bridge to block,
Abutment position all can use the present invention.
The applicable cases of the bridge shock-proof check block structure of the buffering energy dissipating of the present embodiment is as follows:
Under normal working load and little shake effect, the wave reinforcing bar of this structure and the steel plate welded on beam body built-in fitting
There is certain gap in end, now this structure does not affect beam body displacement and deformation, and bridge structure can by vibration absorption and isolation support certainly
Body carrys out earthquake energy.
To there is bigger displacement in beam body direction across bridge under strong earthquake motion effect, the steel plate of welding on beam body built-in fitting
Contact with the rubber layer of this structure wave reinforcing bar outsourcing, due to the existence of wave reinforcing bar initial bending deformation, hit in beam body
Hitting under effect, wave reinforcing bar can occur bending and deformation earthquake energy further, to beam in whole deformation process
Body clashes into block and serves good buffering effect and the seismic energy that dissipated, and also reduces the beam body shock to block simultaneously
Effect, effectively reduces impact wreckage and the generation of the beam that laterally falls of horizontal block.This structure takes full advantage of wave steel
The preferable ductility of muscle comes buffering collision of closed effect and dissipation seismic energy, and significantly improves the overall anti-seismic performance of bridge structure.
Above-described is only the preferred embodiment of the present invention.For the person of ordinary skill of the art, exist
On the premise of conceiving without departing from the invention, it is not necessary to creative work just can make some deformation and improvement, and these all belong to
In protection scope of the present invention.
Claims (3)
1. the bridge shock-proof check block structure buffering energy dissipating, is arranged on the joint portion of bent cap and beam body, it is characterised in that bent cap
Being provided with vibration absorption and isolation support on end face, beam body is supported on described vibration absorption and isolation support, and bent cap both ends are respectively arranged with concrete
Antivibration block；Some wave reinforcing bar flat segments ends build-in in concrete anti-earthquake baffle block, the wave partial denudation of reinforcing bar
Between block outer surface and beam body outer surface；It is welded with one piece with described with wave reinforcing bar corresponding position on beam body built-in fitting
The steel plate that wave reinforcing bar is perpendicular；One layer of rubber is wrapped up on the exposed part of wave reinforcing bar and steel plate cantilever end end.
The bridge shock-proof check block structure of buffering energy dissipating the most according to claim 1, it is characterised in that described wave reinforcing bar
Exposed part becomes " M " shape, described reinforcing bar flat segments end to couple with the reinforcing bar of configuration in concrete anti-earthquake baffle block.
The bridge shock-proof check block structure of buffering energy dissipating the most according to claim 1, it is characterised in that: described steel plate cantilever end
End portion width is more than the dispersion of distribution of described wave reinforcing bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620647474.XU CN205874956U (en) | 2016-06-24 | 2016-06-24 | Bridge anti -seismic dog structure of buffering energy dissipation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620647474.XU CN205874956U (en) | 2016-06-24 | 2016-06-24 | Bridge anti -seismic dog structure of buffering energy dissipation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205874956U true CN205874956U (en) | 2017-01-11 |
Family
ID=57692576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620647474.XU Withdrawn - After Issue CN205874956U (en) | 2016-06-24 | 2016-06-24 | Bridge anti -seismic dog structure of buffering energy dissipation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205874956U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105926429A (en) * | 2016-06-24 | 2016-09-07 | 西南交通大学 | Buffer and energy dissipation bridge anti-seismicanti-seismic stop block structure |
| CN107829362A (en) * | 2017-10-30 | 2018-03-23 | 重庆交通大学 | The bridge tensility shock-resistant structure and construction method easily replaced after shake |
-
2016
- 2016-06-24 CN CN201620647474.XU patent/CN205874956U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105926429A (en) * | 2016-06-24 | 2016-09-07 | 西南交通大学 | Buffer and energy dissipation bridge anti-seismicanti-seismic stop block structure |
| CN107829362A (en) * | 2017-10-30 | 2018-03-23 | 重庆交通大学 | The bridge tensility shock-resistant structure and construction method easily replaced after shake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170111 Effective date of abandoning: 20170825 |