CN203487450U - Horizontal shock absorption device of large-span bridge - Google Patents
Horizontal shock absorption device of large-span bridge Download PDFInfo
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- CN203487450U CN203487450U CN201320588879.7U CN201320588879U CN203487450U CN 203487450 U CN203487450 U CN 203487450U CN 201320588879 U CN201320588879 U CN 201320588879U CN 203487450 U CN203487450 U CN 203487450U
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- seat board
- lower seat
- base
- bridge
- damping device
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Abstract
The utility model discloses a horizontal shock absorption device of a large-span bridge. The horizontal shock absorption device of the large-span bridge comprises an upper support plate, a middle lining plate, a lower support plate and a base, wherein the middle lining plate is assembled between the upper support plate and the lower support plate, curved-surface sliding matching surfaces are formed between the middle lining plate and the upper support plate and between the middle lining plate and the lower support plate respectively, the base is located under the lower support plate, and a vertical spring is arranged between the lower support plate and the base. The horizontal shock absorption device of the large-span bridge is simple in structure, reasonable in design, and capable of effectively limiting displacement of the bridge under a whole working condition, playing a role in energy dissipation and shock absorption of earthquake loads, and improving the shock absorption performance of the bridge.
Description
Technical field
The utility model relates to a kind of damping device, particularly relates to a kind of horizontal damping device that is applicable to Longspan Bridge.
Background technology
At present, Longspan Bridge generally adopts the floating or half floating system bridges such as cable stayed bridge, suspension bridge.For the earthquake disaster of preventing to occur, need to carry out seismic design to bridge.At direction across bridge floating or half floating system bridge, girder and king-tower generally adopt wind-resistant support to restrict the relative motion of beam, tower, the Dun Ding of anchoring pier and auxiliary pier also often arranges horizontal limit devices, this inertia force that passes to pier stud in the time of can causing earthquake is excessive, and therefore abutment pier and basis thereof floating or half floating system bridge are the weak parts of antidetonation at direction across bridge.For general floating or half floating system bridge; anchoring pier and auxiliary pier can allow bridge pier column to enter plastic state under severe earthquake action; and can adopt the Ductility Design method of general bridge pier to carry out seismic design, therefore, pier, the horizontal fixed form of beam are generally feasible; Yet the anchoring pier of super-span bridge and auxiliary pier are often very high, as high 60 m that approach of pier of Soviet Union's Changjiang River highway bridge, ductility is less, so in seismic design, should be by selecting rational horizontal restrain system to reduce earthquake response.
In general, for super-span bridge, because longitudinally span is larger, under the effects such as various mobile loads, temperature load, seismic load, its length travel is very big, and bridge construction is caused and had a strong impact on.For reducing the length travel of bridge, need between bridge and pier, adopt the device with horizontal damping.Therefore, in order to control the beam end displacement of super-span bridge, require the supporting arrangement of setting up between pier, beam that longitudinal horizontal rigidity can be provided, can provide transverse horizontal rigidity again, there is the horizontal damping device of certain damping simultaneously.
Longspan Bridge mainly adopts viscous damper to control horizontal stroke, length travel and the damping of bridge at present, but the damping force of viscous damper depends on speed, the load that variations in temperature, less wind speed and vehicle etc. are slowly acted on is inoperative, only seismic load is played to energy-dissipating and shock-absorbing effect.
How finding a kind of device that all has power consumption under full working condition, reduce the effects such as displacement, is a great problem that current Longspan Bridge is built.
Utility model content
The purpose of this utility model is just to provide a kind of Longspan Bridge horizontal damping device, can effectively limit bridge displacement, and seismic load is played to energy-dissipating and shock-absorbing effect, improves bridge lateral shock resisting performance, thereby solves the problem that above-mentioned prior art exists completely.
The purpose of this utility model realizes by following technical proposals:
A kind of Longspan Bridge horizontal damping device, comprise upper base plate, middle liner plate, lower seat board and base, middle liner plate is assemblied between upper and lower seat board, and form the curved surface face that is slidably matched with upper and lower seat board respectively, base is positioned at lower seat board below, between described lower seat board and base, Vertical Spring is set.
Further, the described curved surface face of being slidably matched is sphere slide plane or cylinder slide plane.
Further, described lower seat board bottom surface and base top surface correspondence are provided with boss, and Vertical Spring two ends are placed on outside boss respectively.
As preferably, in lower seat board both sides, be respectively provided with a guiding device, this guiding device is comprised of with the slide plate that is installed on lower seat board side the guide strip being fixed on base.
As preferably, in the middle of lower seat board bottom, be provided with gathering sill, on base, correspondence arranges lead, and lead and gathering sill are slidably matched.
As preferably, described Vertical Spring is vertically alternately socketed to form by outer toroid and interior annulus, and the fitting face between outer toroid and interior annulus is taper seat.
As preferably, described Vertical Spring is rubber elastomer or metal spring.
Compared with prior art, the beneficial effects of the utility model are: simple in structure, reasonable in design, and under full working condition, all can effectively limit bridge displacement, and seismic load is played to energy-dissipating and shock-absorbing effect, improve bridge water deflation shock stability.
Accompanying drawing explanation
Fig. 1 is the elevation of the utility model embodiment mono-;
Fig. 2 is the left view of the utility model embodiment mono-;
Fig. 3 is the structural representation of Vertical Spring in the utility model embodiment mono-;
Fig. 4 is the structural representation of the utility model embodiment bis-.
The specific embodiment
Below in conjunction with specific embodiments and the drawings, the utility model is further described.
As shown in Figure 1 to Figure 3, a kind of Longspan Bridge horizontal damping device, comprise upper base plate 11, middle liner plate 12, lower seat board 13 and base 3, middle liner plate 12 is assemblied between upper and lower seat board 11,13, and forming the spheres face that is slidably matched with upper and lower seat board 11,13 respectively, base 3 is positioned at lower seat board 13 belows, between lower seat board 13 and base 3, Vertical Spring 2 is set, described lower seat board 13 bottom surfaces and base 3 end face correspondences are provided with boss 1, and Vertical Spring 2 two ends are placed on respectively outside boss 1.
In lower seat board 13 both sides, be respectively provided with a guiding device, this guiding device is comprised of with the slide plate 6 that is installed on lower seat board 13 sides the guide strip 5 being fixed on base 3.
Described Vertical Spring 2 is vertically alternately socketed to form by outer toroid 21 and interior annulus 22, and the fitting face between outer toroid 21 and interior annulus 22 is taper seat.
Described Vertical Spring 2 also can be selected rubber elastomer or metal spring.
In the middle of above-mentioned, between liner plate 12 and upper and lower seat board 11,13, can also adopt cylinder slide plane to coordinate.
This device can provide damping and horizontal resiliency rigidity.When beam body produces lateral displacement, beam body drives upper base plate 11, because middle liner plate 12 and upper and lower seat board 11,13 form the spheres face that is slidably matched, therefore can produce axial thrust load and horizontal component, horizontal component forms horizontal rigidity, and axial thrust load compression Vertical Spring 2 produces vertical damping.When Vertical Spring 2 bears axial load, interior annulus 22 by compression and reduced, outer toroid 21 Tensiles and enlarged-diameter, inside and outside annulus 22,21 produces axial deformation and plays spring action along taper seat relative sliding and forms damping.Because Vertical Spring 2 and the bearing that upper base plate 11, middle liner plate 12 and lower seat board 13 form bear vertical load jointly, pier is vertically carried without impact, due to the effect of Vertical Spring 2, realized the vertical damping of bridge simultaneously.
This damping device all can effectively limit bridge displacement under full working condition, and seismic load is played to energy-dissipating and shock-absorbing effect, improves bridge water deflation shock stability.
Embodiment bis-
Referring to Fig. 4, the difference of the present embodiment and embodiment mono-is, in the middle of lower seat board 13 bottoms, is provided with gathering sill 7, and on base 3, correspondence arranges lead 8, and lead 8 is slidably matched with gathering sill 7.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (7)
1. a Longspan Bridge horizontal damping device, comprise upper base plate, middle liner plate, lower seat board and base, middle liner plate is assemblied between upper and lower seat board, and form the curved surface face that is slidably matched with upper and lower seat board respectively, base is positioned at lower seat board below, it is characterized in that: between described lower seat board and base, Vertical Spring is set.
2. Longspan Bridge horizontal damping device according to claim 1, is characterized in that: the described curved surface face of being slidably matched is sphere slide plane or cylinder slide plane.
3. Longspan Bridge horizontal damping device according to claim 2, is characterized in that: described lower seat board bottom surface and base top surface correspondence are provided with boss, and Vertical Spring two ends are placed on outside boss respectively.
4. Longspan Bridge horizontal damping device according to claim 3, is characterized in that: in lower seat board both sides, be respectively provided with a guiding device, this guiding device is comprised of with the slide plate that is installed on lower seat board side the guide strip being fixed on base.
5. Longspan Bridge horizontal damping device according to claim 3, is characterized in that: in the middle of lower seat board bottom, be provided with gathering sill, on base, correspondence arranges lead, and lead and gathering sill are slidably matched.
6. according to the Longspan Bridge horizontal damping device described in claim 4 or 5, it is characterized in that: described Vertical Spring is vertically alternately socketed to form by outer toroid and interior annulus, and the fitting face between outer toroid and interior annulus is taper seat.
7. according to the Longspan Bridge horizontal damping device described in claim 4 or 5, it is characterized in that: described Vertical Spring is rubber elastomer or metal spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320588879.7U CN203487450U (en) | 2013-09-24 | 2013-09-24 | Horizontal shock absorption device of large-span bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320588879.7U CN203487450U (en) | 2013-09-24 | 2013-09-24 | Horizontal shock absorption device of large-span bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203487450U true CN203487450U (en) | 2014-03-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320588879.7U Expired - Lifetime CN203487450U (en) | 2013-09-24 | 2013-09-24 | Horizontal shock absorption device of large-span bridge |
Country Status (1)
| Country | Link |
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| CN (1) | CN203487450U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485277A (en) * | 2013-09-24 | 2014-01-01 | 成都市新筑路桥机械股份有限公司 | Horizontal seismic-reduction device of long-span bridge |
| CN109371825A (en) * | 2018-10-31 | 2019-02-22 | 重庆交通大学 | Novel damping energy dissipating support |
-
2013
- 2013-09-24 CN CN201320588879.7U patent/CN203487450U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485277A (en) * | 2013-09-24 | 2014-01-01 | 成都市新筑路桥机械股份有限公司 | Horizontal seismic-reduction device of long-span bridge |
| CN103485277B (en) * | 2013-09-24 | 2015-06-17 | 成都市新筑路桥机械股份有限公司 | Horizontal seismic-reduction device of long-span bridge |
| CN109371825A (en) * | 2018-10-31 | 2019-02-22 | 重庆交通大学 | Novel damping energy dissipating support |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140319 |
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| CX01 | Expiry of patent term |