CN203782552U - Pre-consolidation type bridge support structure - Google Patents
Pre-consolidation type bridge support structure Download PDFInfo
- Publication number
- CN203782552U CN203782552U CN201420189514.1U CN201420189514U CN203782552U CN 203782552 U CN203782552 U CN 203782552U CN 201420189514 U CN201420189514 U CN 201420189514U CN 203782552 U CN203782552 U CN 203782552U
- Authority
- CN
- China
- Prior art keywords
- earthquake
- bridge
- brake pad
- type bridge
- preconsolidation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000007596 consolidation process Methods 0.000 title abstract 5
- 230000000694 effects Effects 0.000 description 6
- 238000013016 damping Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 230000002146 bilateral effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- VMQPMGHYRISRHO-UHFFFAOYSA-N benzvalene Chemical group C1=CC2C3C1C32 VMQPMGHYRISRHO-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model provides a pre-consolidation type bridge support structure. A cutting-off device, a friction block and a bottom basin are sequentially arranged between an upper support board and a lower support board, the friction block is arranged inside a groove of the bottom basin, the cutting-off device is fixed on a bridge support and is in concave and convex fit with one of the friction block and the bottom basin or both the friction block and the bottom basin, and a friction pad is spaced at the part outside the matched face. Under the normal working condition of the support or E1 earthquake (frequent earthquake) condition, the consolidation action of the cutting-off device enables the support not to shift in the constraint direction, stability of a bridge system is kept, when an E2 earthquake (rare earthquake) happens, the cutting-off device cracks under the action of huge inertia force of a beam, consolidation constraint on the beam is released, the beam and piers deform through the support, part of earthquake energy is dissipated in a friction mode, at the same time, the natural vibration frequency of the bridge system is reduced, and the earthquake (vibration) reduction function is achieved. According to the pre-consolidation type bridge support structure, the structural mode is simple, the working principle is clear, the deformation mode is certain, and the safety of the bridge can be guaranteed effectively.
Description
Technical field
The utility model relates to preconsolidation type bridge pad structure design, and specifically a kind of bridge construction normal mode of operation, to the design that subtracts shock insulation working mode change under large shake, belongs to bridge engineering structural damping technical field.
Background technology
The bearing using at highway, railroad bridge at present, as basin props up, ball props up, speed lock-up support etc., routine use is identical with mode of operation under E2 geological process, only play in the horizontal direction adaptive temperature, the displacement and transmit top seismic loading of creeping, can not realize the shock insulation function that subtracts under high-intensity earthquake effect.For this situation, design a kind of bridge stability that keeps can be under the geological process of routine work and earthquake intensity below E1 time, and can retrain by release when E2 earthquake (rarely occurred earthquake), to reach susceptor design and the arrangement of damping object significant, can improve the anti-seismic performance of whole bridge system by the layout of this class bearing simultaneously.
Utility model content
The utility model, for the actual needs that under different earthquake condition, bridge there are differences the demand of bearing characteristic, provides a kind of bridge pad that can realize deformation pattern transformation under different earthquake earthquake intensity to cut off the method for arranging of insurance design scheme and bearing.
The technical solution of the utility model is as follows:
A kind of preconsolidation type bridge pad structure, comprise: end basin, clipping apparatus, upper and lower support plate and brake pad, between upper and lower support plate, be disposed with clipping apparatus, brake pad and end basin, brake pad is installed in end basin groove, described clipping apparatus is fixed to projecting inward upper and lower support plate any or the two, and with brake pad or end basin any one or the two is concavo-convex coordinates, and beyond fitting face, part is separated with friction pad.
Further, bilateral support can be by increasing and decreasing the mode of clipping apparatus simply, on the basis of same agent structure, derive this type of bearing of different constraint directions, in bearing, the quantity of clipping apparatus and design can be carried out specific design according to actual type of support and operating mode, and clipping apparatus magnitude setting can be multiple.
Clipping apparatus is provided with prefabricated otch at projection, and its cross section is the geometry arbitrarily with indent character.
Brake pad may be partitioned into brake pad and lower brake pad, and described lower brake pad is separated with friction pad respectively and between upper brake pad and end basin, and cut-off rule is camber line or straight line.
The utility model has designed clipping apparatus on the basis of existing benzvalene form or spherical bearing structure.Under the normal work of bearing or E1 earthquake (common earthquake) condition, by clipping apparatus, bearing is not subjected to displacement at institute's constraint direction, keep the stable of bridge, in the time there is E2 earthquake (rarely occurred earthquake), under the effect of the huge inertia force of beam body, clipping apparatus ruptures at prefabricated incision site place, discharge the fixed constraint to beam body, by form a part of earthquake energy that dissipates of friction, also reduce the eigentone of Modular Bridge System simultaneously, finally reach the object of shock insulation and damping.The utility model is by having proposed to utilize this class shearing resistance bearing to carry out the basic principle that bridge earthquake resistance is set up defences on the basis at existing bearing arrangement simultaneously---and in the time there is rarely occurred earthquake, discharge the constraint of bearing in former fixed direction, make the conversion that realizes mode of operation of bridge system.
Preferably, clipping apparatus is provided with prefabricated otch in relevant position, and its cross section is the geometry arbitrarily with indent character, and burr, crimping that this design causes can contain clipping apparatus fracture time, reduce to cause slide plane scratching by these foreign material.
A kind of preconsolidation type of the utility model bridge pad structure set-up mode is the harmony of first wanting to meet whole system distortion (position) under bridge normal running conditions, do not produce constraint, secondly the mode of the required constraint of shearing resistance bearing is without the direction that produces distortion (position) under normal running conditions, only under E2 earthquake (rarely occurred earthquake) effect, just can make clipping apparatus cut off, discharge the constraint of this direction.
The utility model has been obtained following technique effect:
1, the utility model structure and principle are simple, and cost is low, subtract isolation property reliable and stable.
2, whether realize in bearing fixed constraint to the conversion that is free to slide mode of operation by the fracture of clipping apparatus.
3, cut off after lock inefficacy, bearing consumes certain seismic energy by the friction between its friction pad, and has reduced the eigentone of Modular Bridge System, makes bridge substructure avoid being subject to excessive impact and destroy.
Brief description of the drawings
Fig. 1 is the fixed pot bearing of a kind of preconsolidation type bridge
Fig. 2 is the horizontal pot bearing of a kind of preconsolidation type bridge
Fig. 3 is the longitudinal pot bearing of a kind of preconsolidation type bridge
Fig. 4 is the two-way pot bearing of a kind of preconsolidation type bridge
Fig. 5 is the fixed spherical bearing of a kind of preconsolidation type bridge
Fig. 6 is a kind of preconsolidation type bridge one-way spherical support
In Fig. 1-Fig. 6: basin 6-friction pad 7-clipping apparatus 8-upper rail 9-lower guideway 10-sliding tray at the bottom of brake pad 5-under the upper brake pad 4-of 1-upper bracket plate 2-lower support plate 3-.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model will be further described.Should be appreciated that preferred embodiment is only for the utility model is described, instead of in order to limit protection domain of the present utility model.
embodiment 1
Fig. 1 is a kind of preconsolidation type bridge fixing pot type supporting seat, under normal work and E1 earthquake (common earthquake) condition, upper bracket plate 1 and the upper brake pad 3 of pot bearing hold together by clipping apparatus 7, resist the suffered geological process of bridge by the fixed mode of entirety, avoid the major accidents such as beam that fall under normal work and E1 earthquake.And in the time there is E2 earthquake (rarely occurred earthquake), because of the inertia force of bridge huge, beam body moves together with upper bracket plate 1, when clipping apparatus 7 is in the time that upper bracket plate 1 is reserved otch shear strength lower than beam body inertia force with upper brake pad 3 contact positions, clipping apparatus 7 ruptures in incision, upper bracket plate 1 produces friction with upper brake pad 3 afterwards, utilize friction pad 6 a part of earthquake energy that dissipates, simultaneously because the rigidity of whole bridge system changes to some extent, reduce the eigentone of Modular Bridge System, and then reach the object of damping, the release of above-mentioned fixed constraint, can reduce the impact of inertia force to bridge pier, there is good effect for protection bridge substructure.
embodiment 2,3
Fig. 2 is the horizontal pot bearing of a kind of preconsolidation type bridge, under normal work and E1 earthquake (common earthquake) condition, lower support plate 2 and the end basin 5 of pot bearing are held together and are fixed on Dun Ding by clipping apparatus 7, and generally lower support plate 2 does not produce relative motion with Dun Ding.This kind of one-way pot type supporting seat is owing to having the upper rail 8 of direction across bridge, can ensure that direction across bridge slides comparatively freely, and when along bridge to inertia force can make clipping apparatus 7 produce to cut off after, bearing to along bridge to constraint contact, utilize distortion that lower support plate 2 and the relative motion of end basin 5 cause friction pad 6 with dissipation energy.
Especially, Fig. 3 is the longitudinal pot bearing of another kind of preconsolidation type bridge, and its form of structure is on former backed basis, in lower support plate 2, to have increased clipping apparatus 7, and its operating principle is consistent with the transverse support shown in function and Fig. 2.
embodiment 4
Fig. 4 is the two-way pot bearing of a kind of preconsolidation type bridge, its structure is on the basis of existing bilateral support, make direction across bridge guide rail upper rail 8 with clipping apparatus 7 in advance and be cemented in its guide-track groove along bridge direction guiding rail lower guideway 9, as long as clipping apparatus 7 does not rupture, guide rail just can not be subjected to displacement in guide-track groove, only have after the inertia force of certain direction causes clipping apparatus 7 in respective track to rupture, the fixed constraint of this direction just can be released, and is then reached and is subtracted shock insulation object by the change of sliding friction and system stiffness.
Especially, this two-way pot bearing, by different clipping apparatus 7 set-up modes, can be realized the different functions such as fixed bearing, one-way support and bilateral support, is a kind of design form that can be general.
embodiment 5
Fig. 5 is fixing spherical bearing for a kind of preconsolidation type bridge, under normal work and E1 earthquake (common earthquake) condition, upper bracket plate 1 and the upper brake pad 3 of pot bearing hold together by clipping apparatus 7, only have when clipping apparatus 7 is after upper bracket plate 1 and upper brake pad 3 contact positions rupture, upper bracket plate 1 produces friction with upper brake pad 3, utilize friction pad 6 a part of earthquake energy that dissipates, simultaneously because the rigidity of whole bridge system changes to some extent, reduce the eigentone of Modular Bridge System, and then reach the object of damping, the release of above-mentioned fixed constraint, there is good effect for protection bridge substructure.
embodiment 6
Fig. 6 is a kind of preconsolidation type bridge one-way spherical support, under normal work and E1 earthquake (common earthquake) condition, spherical bearing can be in the enterprising line slip of the determined direction of sliding tray 10, and another with it vertical direction because upper bracket plate 1 and upper brake pad 3 are consolidated into an entirety by the clipping apparatus 7 arranging, can not be subjected to displacement at direction bearing, only have when after clipping apparatus 7 fractures of this direction, the fixed constraint of this direction just can be released, and enables to be subjected to displacement.
Claims (6)
1. a preconsolidation type bridge pad structure, comprise: upper and lower support plate (1,2), brake pad, end basin (5) and clipping apparatus (7), between described upper and lower support plate (1,2), be disposed with brake pad and end basin (5), brake pad is installed in end basin (5) groove, it is characterized in that: described clipping apparatus (7) is fixed to projecting inward upper and lower support plate (1,2) any or the two, and with brake pad or concavo-convex cooperation of end basin (5) any one or the two, and beyond fitting face, part is separated with friction pad (6).
2. preconsolidation type bridge pad structure according to claim 1, is characterized in that, described clipping apparatus (7) magnitude setting is more than one.
3. preconsolidation type bridge pad structure according to claim 1, is characterized in that, clipping apparatus is provided with prefabricated otch at projection, and its cross section is the geometry arbitrarily with indent character.
4. preconsolidation type bridge pad structure according to claim 1, it is characterized in that, described brake pad may be partitioned into brake pad (3) and lower brake pad (4), and described lower brake pad (4) is separated with friction pad (6) respectively and between upper brake pad (3) and end basin (5).
5. preconsolidation type bridge pad structure according to claim 4, is characterized in that, described cut-off rule is camber line or straight line.
6. preconsolidation type bridge pad structure according to claim 1, is characterized in that, described upper and lower support plate (1,2) inner surface is set up upper and lower guide rail (8,9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420189514.1U CN203782552U (en) | 2014-04-18 | 2014-04-18 | Pre-consolidation type bridge support structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420189514.1U CN203782552U (en) | 2014-04-18 | 2014-04-18 | Pre-consolidation type bridge support structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203782552U true CN203782552U (en) | 2014-08-20 |
Family
ID=51318755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420189514.1U Expired - Lifetime CN203782552U (en) | 2014-04-18 | 2014-04-18 | Pre-consolidation type bridge support structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203782552U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109235249A (en) * | 2018-11-14 | 2019-01-18 | 中铁二院工程集团有限责任公司 | A kind of spherical steel support with dissipative member |
-
2014
- 2014-04-18 CN CN201420189514.1U patent/CN203782552U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109235249A (en) * | 2018-11-14 | 2019-01-18 | 中铁二院工程集团有限责任公司 | A kind of spherical steel support with dissipative member |
| CN109235249B (en) * | 2018-11-14 | 2024-03-08 | 中铁二院工程集团有限责任公司 | Spherical steel support with energy dissipation members |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140820 |