CN202031017U - Hydraulic shock-absorbing structure for steel bridge pier - Google Patents
Hydraulic shock-absorbing structure for steel bridge pier Download PDFInfo
- Publication number
- CN202031017U CN202031017U CN2011201104828U CN201120110482U CN202031017U CN 202031017 U CN202031017 U CN 202031017U CN 2011201104828 U CN2011201104828 U CN 2011201104828U CN 201120110482 U CN201120110482 U CN 201120110482U CN 202031017 U CN202031017 U CN 202031017U
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- bridge pier
- steel bridge
- damper
- fluid pressure
- pressure type
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Abstract
The utility model discloses a hydraulic shock-absorbing structure for a steel bridge pier, which is characterized in that an upper partition board and a lower partition board are arranged at the bottom of an inner cavity of the steel bridge pier. The upper partition board, the lower partition board and the inner side of the steel bridge pier form a partition room. The lower portion of the partition room is filled with damping fluid. A piston seal is arranged on the damping fluid. A damper is arranged between the piston and the upper partition board. The other end of the damper is fixed at the bottom of the upper partition board. The height of the partition room is 1/8 to 1/4 of that of the bridge pier. A hydraulic cylinder mechanism is arranged at the bottom of the steel bridge pier, thereby being capable of having better shock-absorbing effects. Appropriate rigidity of the bridge pier is ensured, and good displacement ductility of the steel bridge pier can be brought into play simultaneously. The technology is convenient to install onsite and quick to construct. Process technological operation can be used in the whole course, thereby being convenient to be used in practical projects.
Description
Technical field
The utility model relates to the steel bridge pier damping structure in the bridge engineering, is specifically related to a kind of fluid pressure type steel bridge pier damping structure, belongs to steel bridge pier technical field in the bridge engineering.
Background technology
The steel bridge pier of fill concrete is the bridge pier material of using always, and behind the fill concrete, steel bridge pier integral rigidity significantly improves, root is difficult for producing cripling, but can increase the burden of pier footing at steel bridge pier root fill concrete, and the concrete curing process is long, takes a lot of work during construction cost.And rigidity is excessive behind the fill concrete, and ductility deformability deficiency easily produces brittle fracture.
Compare characteristics such as performance recovery and maintenance and reinforcement after the steel bridge pier has that lightweight is attractive in appearance, construction is convenient, the construction period is short, floor space is little and is easy to carry out calamity with traditional reinforced concrete bridge pier.Steel bridge pier structure at present commonly used, be at steel bridge pier root fill concrete with at steel bridge pier indoor design stiffening rib, improve the rigidity and the ductility of steel bridge pier, but still have the following disadvantages: because the loading characteristic of bridge pier determines its root to bear bigger moment of flexure, and steel bridge pier cross section wall thickness is thinner, easily produces cripling; By wall thickness, the quantity that increases stiffening rib that strengthens the steel bridge pier, the size that increases stiffening rib, only can improve the rigidity and the intensity of steel bridge pier, but the damping performance raising is limited, and steel using amount promotes obviously, financial cost significantly improves.
The utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of fluid pressure type steel bridge pier damping structure.
In order to reach above-mentioned utility model purpose, the utility model is to realize by following technical scheme:
Fluid pressure type steel bridge pier damping structure, it is characterized in that installing dividing plate, lower clapboard at steel bridge pier intracavity bottom, the inside wall of upper and lower dividing plate and steel bridge pier constitutes a compartment, under-filled buffer solution in the compartment, buffer solution is provided with piston seal, is provided with damper between piston and the upper spacer.
Aforesaid fluid pressure type steel bridge pier damping structure is characterized in that the welding of described upper and lower dividing plate and bridge pier wall is fixing.
Aforesaid fluid pressure type steel bridge pier damping structure is characterized in that described steel bridge pier cross sectional shape is box-shaped or circle.
Aforesaid fluid pressure type steel bridge pier damping structure, the height that it is characterized in that described compartment is a bridge pier height 1/8～1/4.
Aforesaid fluid pressure type steel bridge pier damping structure is characterized in that described damper is a spring-damper.
The characteristics and the effect of fluid pressure type steel bridge pier damping structure of the present utility model are as follows:
(1) simple in structure, connection is provided with rationally, has globality preferably.
(2) have the strength and stiffness that satisfy the steel bridge pier, have plastic degeneration preferably again, under seismic loading, embody displacement Ductility preferably.
(3) save cement consumption, the construction and maintenance time shortens, and is convenient to engineering and completes fast, energy-conserving and environment-protective.
(4) by adjusting the damping of damper, rigidity and the ductility that can regulate the steel bridge pier reach best damping effect.
(5) each parts of steel bridge pier damping structure comprise that the hydraulic cylinder structure of bottom adopts modularization production, are transported to on-the-spot the installation after can completing in factory, and construction is convenient.
Description of drawings
Fig. 1 is the utility model fluid pressure type steel bridge pier damping structural representation;
In the accompanying drawing 1, the 1-compartment; The 2-buffer solution; The 3-piston; The 4-damper; The 5-1 upper spacer; The 5-2 lower clapboard.
The specific embodiment
Specify structure of the present utility model below with reference to accompanying drawing.
Fig. 1 is the utility model fluid pressure type steel bridge pier damping structural representation, with reference to shown in Figure 1, fluid pressure type steel bridge pier damping structure, inner chamber in steel bridge pier bottom surrounds out compartment 1 by bridge pier inside wall and upper spacer 5-1, lower clapboard 5-2, fill buffer solution 2 (fluid) in the compartment 1, the upper surface of buffer solution adopts piston 3 sealings, and piston 3 tops connect damper 4, damper 4 is fixed in the bottom of upper spacer 5-1, and damper is a spring-damper.Upper and lower dividing plate and bridge pier wall adopt welding fixing.Steel bridge pier cross sectional shape can be box-shaped and circle.The height of compartment is a bridge pier height 1/8～1/4.
Manufacturing process is that at first seal welding lower clapboard 5-2 pours into buffer solution 2 then in the steel bridge pier, installs movable sealing plug 3, damper 4 additional.Regulate the damping of damper 4 as required, use fixedly damper 4 of upper spacer 5-1, and with bridge pier wall seal welding.
Common concrete pier of steel tube structure because steel pipe delays crack on concrete to a certain extent to the concrete effect of contraction in inside, thereby makes the concrete filled steel tube pier stud have higher bending rigidity and bearing capacity.But because inner concrete is fragile material, the excessive and ductility deficiency of rigidity, when earthquake took place, the deficiency because of deformation performance damaged easily.At steel pipe the hydraulic cylinder type structure is set, replaces simple fill concrete mode, purpose has two: the one, can reduce the integral rigidity of structure, the deformability of increase structure; The 2nd, can increase the damping of structure, hydraulic cylinder structure can also change the damping size by regulating oil pressure.Can effectively absorb seismic energy when according to the equation of motion as can be known, these two measure earthquakes take place.Make the damage of structure be reduced to minimum.And, can adjust the spring damping and the buffer solution hydraulic pressure of hydraulic mechanism by numerical computations.Make the rigidity of steel bridge pier and the balance that ductility reaches a best.The anti-seismic performance that performance is best.
In order to study the damping performance of new Type of Hydraulic steel bridge pier damping structure, carry out number crunching at the steel bridge pier test specimen of fluid pressure type shock-damping structure.Studies show that (Fig. 2): the hysteresis loop of steel bridge pier test specimen under the course under cyclic loading of simulated earthquake power of fluid pressure type shock-damping structure is full, the ductility deformability big, have very strong energy dissipation capacity.Result of study shows that this new Type of Hydraulic steel bridge pier damping structure can meet design requirement fully, demonstrates good damping effect.
The above-mentioned specific embodiment does not limit the technical solution of the utility model in any form, and the technical scheme that mode obtained that every employing is equal to replacement or equivalent transformation all drops on protection domain of the present utility model.
Claims (5)
1. fluid pressure type steel bridge pier damping structure, it is characterized in that installing dividing plate, lower clapboard at steel bridge pier intracavity bottom, the inside wall of upper and lower dividing plate and steel bridge pier constitutes a compartment, under-filled buffer solution in the compartment, buffer solution is provided with piston seal, is provided with damper between piston and the upper spacer.
2. fluid pressure type steel bridge pier damping structure according to claim 1 is characterized in that the welding of described upper and lower dividing plate and bridge pier wall is fixing.
3. fluid pressure type steel bridge pier damping structure according to claim 1 is characterized in that described steel bridge pier cross sectional shape is box-shaped or circle.
4. fluid pressure type steel bridge pier damping structure according to claim 1, the height that it is characterized in that described compartment is a bridge pier height 1/8～1/4.
5. fluid pressure type steel bridge pier damping structure according to claim 1, it is characterized in that: described damper is a spring-damper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201104828U CN202031017U (en) | 2011-04-15 | 2011-04-15 | Hydraulic shock-absorbing structure for steel bridge pier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201104828U CN202031017U (en) | 2011-04-15 | 2011-04-15 | Hydraulic shock-absorbing structure for steel bridge pier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202031017U true CN202031017U (en) | 2011-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201104828U Expired - Fee Related CN202031017U (en) | 2011-04-15 | 2011-04-15 | Hydraulic shock-absorbing structure for steel bridge pier |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103774547A (en) * | 2014-01-08 | 2014-05-07 | 华侨大学 | Circular steel tube pier with embedded T-type energy consumption steel plates |
| CN103774548A (en) * | 2014-01-08 | 2014-05-07 | 华侨大学 | Box type steel pier with stiffening energy dissipation wall boards arranged on root |
| CN104499426A (en) * | 2014-12-03 | 2015-04-08 | 大连海事大学 | Novel pier bottom isolation bearing using swinging-rolling device and steel plate energy dissipator |
| CN106968163A (en) * | 2017-04-08 | 2017-07-21 | 郑华 | Long service life's pier |
| CN108625277A (en) * | 2018-04-12 | 2018-10-09 | 王涛 | A kind of shock-damping structure and its construction method |
-
2011
- 2011-04-15 CN CN2011201104828U patent/CN202031017U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103774547A (en) * | 2014-01-08 | 2014-05-07 | 华侨大学 | Circular steel tube pier with embedded T-type energy consumption steel plates |
| CN103774548A (en) * | 2014-01-08 | 2014-05-07 | 华侨大学 | Box type steel pier with stiffening energy dissipation wall boards arranged on root |
| CN103774548B (en) * | 2014-01-08 | 2015-08-05 | 华侨大学 | A kind of root arranges the box steel pier of power consumption wallboard of putting more energy into |
| CN103774547B (en) * | 2014-01-08 | 2015-11-04 | 华侨大学 | The round steel pipe bridge pier of embedded T-shaped Wasted-energy steel plate |
| CN104499426A (en) * | 2014-12-03 | 2015-04-08 | 大连海事大学 | Novel pier bottom isolation bearing using swinging-rolling device and steel plate energy dissipator |
| CN104499426B (en) * | 2014-12-03 | 2016-04-20 | 大连海事大学 | Utilize vibration absorption and isolation support at the bottom of the pier of swinging rolling device and steel plate damper |
| CN106968163A (en) * | 2017-04-08 | 2017-07-21 | 郑华 | Long service life's pier |
| CN108625277A (en) * | 2018-04-12 | 2018-10-09 | 王涛 | A kind of shock-damping structure and its construction method |
| CN108625277B (en) * | 2018-04-12 | 2021-01-15 | 吉安鼎丰建设工程有限公司 | Shock absorption structure and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111109 Termination date: 20140415 |