CN202688868U - Movable elastic-plastic damping bridge support - Google Patents
Movable elastic-plastic damping bridge support Download PDFInfo
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- CN202688868U CN202688868U CN201220418116.3U CN201220418116U CN202688868U CN 202688868 U CN202688868 U CN 202688868U CN 201220418116 U CN201220418116 U CN 201220418116U CN 202688868 U CN202688868 U CN 202688868U
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- elastic
- damping element
- plastic
- damping
- seat body
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Abstract
The utility model discloses a movable elastic-plastic damping bridge support comprising an elastic-plastic steel damping element and a support body. The movable elastic-plastic damping bridge support is characterized in that two ends and the middle of the support body are respectively provided with an ear plate, the hinging portion of the middle ear plate is provided with a sliding groove, and the damping element is E-type. The two ends and the middle end of the E-type elastic-plastic steel damping element are hinged on corresponding ear plates on the support body through pin shafts. The damping element can slide freely within the traveling range of the sliding groove. The movable elastic-plastic damping bridge support can provide free travel suitable for bridge body temperature transformation. Under normal work conditions, the support can slide within the free travel and serves as a movable support. Under earthquake work conditions, when earthquake displacement is larger than the free travel, the elastic-plastic steel damping element starts to limit sliding of the support, elastic plastic deformation happens, and earthquake energy is consumed.
Description
Technical field
The utility model belongs to the bridge construction field of engineering technology, relates to a kind of bridge construction parts, relates to specifically a kind of for the active type elastic-plastic damping bridge pad between bridge beam body and the bridge pier.
Background technology
The elastic-plastic damping bridge pad is widely used in bridge earthquake resistance with its good damping dissipation energy performance at present, but this type of bearing is owing to be subjected to the constraint of elastic-plastic damping element, can not provide the bridge that expands with heat and contract with cold of beam body to produce temperature movement, therefore the elastic-plastic damping bridge pad is generally fixed, can only be used for anchor block.So just limit using at movable pier of elastic-plastic damping bearing, also do not brought into play the antihunt action of movable pier.
Summary of the invention
In order to make the elastic-plastic damping bridge pad with on the movable pier, the antihunt action of performance bridge movable pier the utility model proposes a kind of active type elastic-plastic damping bridge pad.
For above-mentioned shortcoming, the technical scheme that the utility model proposes is:
Active type elastic-plastic damping bridge pad, comprise elastoplasticity steel damping element and a seat body, prop up seat body two ends and centre an otic placode is respectively arranged, hinge point is chute on the middle otic placode, damping element is the ε type, ε type elastoplasticity steel damping element two ends and intermediate ends are hinged on the otic placode of a seat body relevant position by bearing pin, and damping element can be free to slide in the chute travel range.
ε type elastoplasticity steel damping element adopts publication number to be: disclosed ε type elastoplasticity steel damping element in the application of CN102312408A, propping up seat body is ball-type Steel Bridge bearing, the chute two ends of propping up the middle hinged otic placode of damping element on the seat body also are provided with elastic buffer component, and shape and chute are complementary.Seat body adopts friction factor greater than 0.03 the height sliding pair that rubs.
The difference of the utility model bearing and fixed elastic-plastic damping bearing is: the utility model provides the free travel of applicable bridge beam body temperature deformation, free travel realizes that by the chute on the hinged otic placode in centre that is set in elastoplasticity steel damping element free travel (being the chute stroke) is identical with the temperature movement of bearing.When the swollen shrinkage occurrence temperature displacement of beam body heat, damping element can be free to slide in chute, can not retrain bearing sliding.
Operating principle of the present utility model is: under nominal situation, the utility model can slide in free travel, plays the function of active type bearing; Under the earthquake operating mode, when earthquake displacement was not more than free travel, the utility model is sliding pair friction energy-dissipating (very little) only, and earthquake displacement is during greater than free travel, and elastoplasticity steel damping element begins to retrain the slip of bearing, and the elastic-plastic deformation earthquake energy occurs.
Impact when reducing the damping element earthquake, the utility model arranges elastic buffer component at the two ends of chute.
The utility model and fixed elastic-plastic damping bearing support the use: movable pier uses the utility model, and anchor block uses fixed elastic-plastic damping bearing; Under nominal situation, two kinds of bearings play respectively the function of freely movable bearing and fixed bearing.During little shake, earthquake displacement is little, and the utility model earthquake displacement does not participate in the energy dissipating antidetonation substantially in free travel, by fixed elastic-plastic damping bearing energy dissipating antidetonation; During large shake, the utility model earthquake displacement is greater than free travel, with the collaborative energy dissipating antidetonation of fixed elastic-plastic damping bearing, the antihunt action of performance movable pier.
The sliding pair (friction factor is greater than 0.03) if the utility model employing height rubs, can also realize multistage antidetonation: earthquake displacement is in free travel, by the friction pair friction energy dissipation; Earthquake displacement is during greater than free travel, and existing friction energy dissipation has again the elastic-plastic damping energy dissipating of damping element.
The utility model be fit to very much be applied on the simply supported beam bridge of high earthquake region and other earthquake displacements on the bridge of temperature movement.
Beneficial effect
1, the utility model can make the elastic-plastic damping bearing use at the bridge movable pier: the utility model can provide temperature movement when nominal situation, when large shake, can participate in the energy dissipating antidetonation, the antihunt action of performance movable pier.
If 2, the utility model adopts the height sliding pair (friction factor is greater than 0.03) that rubs, can also realize multistage antidetonation: during little shake, by friction pair friction energy dissipation antidetonation; During large shake, existing friction energy dissipation antidetonation has again the elastic-plastic damping energy dissipating antidetonation of damping element.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the sectional view of Fig. 1.
Among the figure: 1-damping element; A 2-seat body; 3-buffer element; 4-otic placode; 5-sliding pair.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is the utility model structural representation, and the utility model is comprised of elastoplasticity steel damping element 1 and a seat body 2.Prop up seat body two ends and centre an otic placode 4 is respectively arranged, hinge point is chute on the middle otic placode 4, damping element is the ε type, ε type elastoplasticity steel damping element 1 two ends and intermediate ends are hinged on the otic placode 4 of a seat body relevant position by bearing pin, and damping element 1 can be free to slide in the chute travel range.
ε type elastoplasticity steel damping element 1 is a kind of good elastoplasticity steel damping dissipation energy element of up-to-date research and development, and its concrete structure and performance illustrate at the CN102312408A patent specification, no longer describe in detail.
Propping up seat body 2 is ball-type Steel Bridge bearings, and hinge point is chute on the middle otic placode 4, and during bearing sliding, damping element 1 can slide in chute.The stroke of chute is identical with the temperature movement of bearing.
Impact when reducing the damping element earthquake, the utility model arranges elastic buffer component 3 at the two ends of chute.Buffer element 3 materials adopt rubber, and shape and chute match.
The sliding pair 5 of seat body adopts the height sliding pair (friction factor is greater than 0.03) that rubs, and can realize multistage antidetonation: earthquake displacement is in free travel, by the friction pair friction energy dissipation; Earthquake displacement is during greater than free travel, and existing friction energy dissipation has again the elastic-plastic damping energy dissipating of damping element.
Claims (6)
1. active type elastic-plastic damping bridge pad, comprise elastoplasticity steel damping element and a seat body, it is characterized in that respectively there is an otic placode seat body two ends and centre, hinge point is chute on the middle otic placode, damping element is the ε type, ε type elastoplasticity steel damping element two ends and intermediate ends are hinged on the otic placode of a seat body relevant position by bearing pin, and damping element can be free to slide in the chute travel range.
2. active type elastic-plastic damping bridge pad according to claim 1 is characterized in that described ε type elastoplasticity steel damping element adopts ε type elastoplasticity steel damping element.
3. active type elastic-plastic damping bridge pad according to claim 1 is characterized in that described seat body is ball-type Steel Bridge bearing.
4. described a kind of active type elastic-plastic damping bridge pad according to claim 1 is characterized in that: on the seat body in the middle of the damping element hinged otic placode have chute.
According to claim 1 with 3 described active type elastic-plastic damping bridge pads, it is characterized in that the chute two ends of hinged otic placode arrange elastic buffer component in the middle of the damping element on described the seat body, shape and chute are complementary.
6. described active type elastic-plastic damping bridge pad according to claim 1 is characterized in that described seat body adopts friction factor greater than 0.03 the height sliding pair that rubs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220418116.3U CN202688868U (en) | 2012-08-22 | 2012-08-22 | Movable elastic-plastic damping bridge support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220418116.3U CN202688868U (en) | 2012-08-22 | 2012-08-22 | Movable elastic-plastic damping bridge support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202688868U true CN202688868U (en) | 2013-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220418116.3U Expired - Lifetime CN202688868U (en) | 2012-08-22 | 2012-08-22 | Movable elastic-plastic damping bridge support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202688868U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104120650A (en) * | 2014-08-01 | 2014-10-29 | 株洲时代新材料科技股份有限公司 | Steel damping composite sliding plate rubber support and damping method thereof |
| CN104711924A (en) * | 2013-12-17 | 2015-06-17 | 安徽尚德科技有限公司 | Wavy elastic-plastic steel damping device |
| CN106351117A (en) * | 2016-10-17 | 2017-01-25 | 株洲时代新材料科技股份有限公司 | Single-side damping type elastic-plastic steel bearing and damping method thereof |
-
2012
- 2012-08-22 CN CN201220418116.3U patent/CN202688868U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104711924A (en) * | 2013-12-17 | 2015-06-17 | 安徽尚德科技有限公司 | Wavy elastic-plastic steel damping device |
| CN104120650A (en) * | 2014-08-01 | 2014-10-29 | 株洲时代新材料科技股份有限公司 | Steel damping composite sliding plate rubber support and damping method thereof |
| CN104120650B (en) * | 2014-08-01 | 2015-12-09 | 株洲时代新材料科技股份有限公司 | A kind of steel damping composite slide-plate neoprene bearing and damping method thereof |
| CN106351117A (en) * | 2016-10-17 | 2017-01-25 | 株洲时代新材料科技股份有限公司 | Single-side damping type elastic-plastic steel bearing and damping method thereof |
| CN106351117B (en) * | 2016-10-17 | 2018-06-05 | 株洲时代新材料科技股份有限公司 | A kind of unilateral damping elastoplasticity bridle iron and its damping method |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130123 |