CN202500086U - Green shock absorption and vibration attenuation bridge tower - Google Patents
Green shock absorption and vibration attenuation bridge tower Download PDFInfo
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- CN202500086U CN202500086U CN201220013646XU CN201220013646U CN202500086U CN 202500086 U CN202500086 U CN 202500086U CN 201220013646X U CN201220013646X U CN 201220013646XU CN 201220013646 U CN201220013646 U CN 201220013646U CN 202500086 U CN202500086 U CN 202500086U
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Abstract
The utility model discloses a green shock absorption and vibration attenuation bridge tower, comprising a routine bridge tower, a tuned mass damper system and a tuned liquid damper system. The green shock absorption and vibration attenuation bridge tower combines the vibration attenuation technology and the green and environmental protection idea; green plant accommodating cases are employed as TMD (Tuned Mass Dampers) mass blocks to be in connection with structure surfaces through shock insulation rubber pads; water tanks are used as TLD (Tuned Liquid Dampers) mass bodies to be in connection with the tower top. According the utility model, the TMD and TLD can be utilized to reduce vibration response of an upper part of a bridge tower in each horizontal direction under various excitation; vibration can be reduced through damping energy consumption of the shock insulation rubber pads, which can beautify ornamental environments of the tower top; in addition, vertical damping bolts are arranged to restrict vertical displacement of the shock insulation rubber pads and enhance vertical energy dissipation effects. The green shock absorption and vibration attenuation bridge tower has simple design and low costs and will have wide engineering application prospects and generate substantial economic and social benefits with more emphasis on long-span bridge tower anti-seismic design.
Description
Technical field
The utility model relates to a kind of green damping, vibration damping bridge tower with damping (shaking) effect; Be particularly suitable in large bridges such as large span stayed-cable bridge, suspension bridge, adopting, reduce the vibratory response of bridge tower structure under effects such as earthquake, wind, vehicle with the environmental protection means.
Background technology
Earthquake, disaster caused by a windstorm all are common natural calamities, cause huge casualties and economic loss.In recent years, earthquake disaster constantly takes place, and China's Wenchuan earthquake in 2008 causes 69227 people dead, and 374643 people are injured, and cajaput Qinghai earthquake in 2010 causes 2698 people dead.Wherein, the damage of civil engineering structure and to collapse be the one of the main reasons that causes economic loss and casualties.Meanwhile, global climate also changes bigger in recent years, and it is rampant more that typhoon, hurricane etc. seems, disaster caused by a windstorm loses also average annual growth.
China is current to be in the flourish stage of civil engineering construction; Bridge construction is from striding the river gradually to development over strait; A large amount of large span cable support bridge (comprising cable stayed bridge and suspension bridge) structures constantly occur, and the thing followed is that the height of bridge tower is also increasingly high.It is 210 meters that the profit that for example was open to the traffic in 2005 is raised the suspension bridge bridge tower, and the bridge tower of the logical cable stayed bridge of the Soviet Union of being open to the traffic in 2008 has reached 306 meters.Along with the further increase of bridge tower height, its wind resistance, seismic design can not be ignored.The existing part of the bridge tower of existing Longspan Bridge has been considered the demand of antidetonation; Alum strait Bridge such as Japan; MTMD has been installed reducing the vibratory response of bridge tower in bridge tower inside, but since the TMD in this bridge to the requirement of construction than higher, thereby fail to be applied.Bridge construction is a lifeline engineering, and the long-span bridge girder construction is the engineering of state key investment especially, and bridge tower is one of wherein the most key member, so the damping (shaking) of Longspan Bridge bridge tower structure design is most important.
Structural vibration control is one of focus of domestic and international project circle research; The structure Passive Control is that maximum a kind of vibration isolation modes is used in domestic and international research the earliest; A lot of achievements have all been obtained in theory with on using at present; Tuned mass damper (Toned Mass Dampers wherein; Be called for short TMD) be one of type the most commonly used, it utilizes main structure to receive exciting and when vibrating, the inertia force opposite with the main structure direction of vibration that minor structure produces is decayed the reaction of main structure and is controlled.Tuned Liquid (Toned Liquid Dampers, be called for short TLD) is also by through being usually used in the middle of the vibration control of skyscraping structure, and the moving side force that its utilizes the liquid in the fixing water tank in the process of rocking, to produce provides damping effect.
In order to carry out the national development strategy policy of resources conservation and environmental protection, the civil structure of environmental protection will certainly become the focus and the main flow of structure design in the future.Green structure makes full use of sunlight, saves the energy, improves urban green coverage, alleviates the city and pollutes, for the mankind create a kind of sensation near nature.But the relevant application of environmental protection thought in large bridge structure bridge tower not development as yet, damping (shaking) control that is used for bridge tower also relates to far away.
The utility model content
Goal of the invention: in order to overcome the deficiency that exists in the prior art, the utility model provides a kind of damping, the vibration damping bridge tower that can when implementing bridge tower damping (shaking), realize the green building design.
Technical scheme: to achieve these goals, the green damping of the utility model, vibration damping bridge tower comprise conventional bridge tower, tuned mass damper system and Tuned Liquid system.
A kind of green damping of the utility model, vibration damping bridge tower comprise conventional bridge tower, tuned mass damper system and Tuned Liquid system, and said conventional bridge tower comprises the column of both sides and the crossbeam between the column; Said tuned mass damper system comprises the plant storage case and is installed in the rubber vibration isolation cushion on the base plate, and said rubber vibration isolation cushion top is connected through steel plate with the plant storage case, and said base plate passes through vertical Shock-proof bolt and is connected with crossbeam ground; Said Tuned Liquid system comprises the water tank that is fixed on cat head.
The tuned mass damper system comprises the plant storage case part on top, the isolation rubber pad part and the linkage of bottom.Wherein, the plant storage case is the box-structure of upper opening, cultivates plants above, places the bigger cobble of quality, sand, earth etc. below the plant, guarantees to have certain quality.
The Tuned Liquid system comprises the water tank that is placed on the cat head, and common number is generally 1 ~ 2, is used for irrigating plant.The volume of the inner dress of water tank water is about 2/3 of a water tank capacity, to guarantee more excellent damping (shaking) ability.Cistern system has constituted tuned liquid damper, TLD, tuned sloshing damper, also can cover plant on the water tank.
The shock insulation pad of plant storage case bottom can select that resistance is big for use, energy-dissipating property rubber preferably, and shock insulation pad top is connected through the steel top board with the plant storage case.Isolation rubber pad bottom is connected with ground through vertical Shock-proof bolt.Vertical Shock-proof bolt is made up of bolt head and rubber ring, and the constraint in the horizontal plane is provided, and makes that the plant storage case on top and water tank can provide vertically, damping (shaking) horizontal and that reverse acts on; Vertical free, not only can avoid the tensile failure of shock insulation pad under the vertical earthquake, can also compress power consumption to reduce the response of base plate under vertical geological process.A common TMD system, the TLD system of cistern system formation of forming of plant storage case and isolation rubber pad.
Therefore the vibration of mass and main structure always keep out-phase, and through being connected of TMD system and rubber vibration isolation cushion, inertia force in the opposite direction with the main structure mass motion of mass total energy effect makes bridge tower vertically, laterally reach the reduction of torsional displacement amplitude; Water in the water tank also is same principle.Under general little displacement (shaking for a short time) situation; This system's damping (shaking) effect is not very obvious; And the displacement of cat head wants significantly a lot of than the bottom, and therefore under big displacement (in good) situation, this TMD and TLD system have just brought into play effective damping (shaking) and acted on.In addition, isolation rubber is lined with bigger damping, and itself also has the effect of energy-dissipating and shock-absorbing (shaking).
Around the plant storage case, be positioned at the concrete beam edge that give prominence to column surface and crossbeam bottom, the antidetonation positive stop is installed, prevent that the plant storage case is excessive and fall at shake effect bottom offset doughtily.Column and concrete beam provide good support can for the antidetonation positive stop.The water tank of cat head can be installed protector to avoid falling of macroseism lower header.
The plant storage case that is adopted in the utility model, isolation rubber pad TMD system and water tank TLD system have simple structure, the effective advantage of damping (shaking), can reach effective control bridge tower in length and breadth to displacement, improve anti-twisting property and reduce the effect of bridge earthquake.
Conventional TMD system utilizes spring that mass is linked to each other with structure, and having along the spring direction is vertical damping capacity.Yet bridge tower is vertically having enough rigidity, mainly in level to bigger vibratory response is arranged, so the utility model makes the spring in the conventional TMD system into the isolation rubber pad.The isolation rubber spacer has simple structure and good power consumption shock insulation ability; With tuned mass damper be placed on rubber vibration isolation cushion above; On the basis of rationally choosing shock insulation pad type and parameter; Can in the vibration isolation ability of the energy dissipation capacity of bringing into play rubber vibration isolation cushion and TMD, can also make the shock insulation pad that level is respectively all had good shock insulation ability to earthquake, make TMD all directions in horizontal plane to play one's part to the full.In addition, pedestal vertically discharged to bring into play TMD, can reduce the generation of rubber pad damage under the geological process again greatly in vertical damping capacity.
Beneficial effect: the utility model is through combining plant storage case and isolation rubber pad; Design a kind of novel green damping, vibration damping bridge tower; Tuned mass damper TMD, the function of tuned liquid damper, TLD, tuned sloshing damper TLD and the function of rubber pad passive energy dissipation had both been combined; Also have the function that greening is attractive in appearance, improve environment, make the vibratory response of bridge tower top under all kinds of excitations reduce significantly, can bring the good environment of viewing and admiring to the people that cat head is visited simultaneously.The utility model design is ingenious, cheap; Has multiple effect; Constantly newly-built along with development and national economy and Longspan Bridge engineering superelevation type bridge tower; The green damping of the utility model, vibration damping bridge tower will extensive uses in striding river, large bridge engineering such as over strait, produce the remarkable economical social benefit.
Description of drawings
Fig. 1 is the arrangement diagram of the utility model on bridge tower;
The vertical view that Fig. 2 arranges on crossbeam for the utility model;
Fig. 3 is the elevation (representational one section of intercepting) of the utility model;
Fig. 4 is the structure for amplifying sketch map of vertical Shock-proof bolt.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done explanation further.
Shown in Fig. 1 to 3, the green damping of the utility model, vibration damping bridge tower comprise conventional bridge tower, tuned mass damper system and Tuned Liquid system.Wherein, conventional bridge tower comprises the column 1 of both sides and is arranged on top rail 3, middle cross beam 4, lower transverse beam 5 and the girder 6 between the column 1; The tuned mass damper system comprises plant storage case 7 and is installed in the rubber vibration isolation cushion 9 on the base plate 10, rubber vibration isolation cushion 9 tops and plant storage case 7 through on be connected with steel plate 8 connections, base plate 10 passes through vertical Shock-proof bolt 11 and is connected with crossbeam ground; The Tuned Liquid system comprises the water tank 12 that is fixed on cat head.As shown in Figure 4, vertical Shock-proof bolt 11 comprises bolt head and is sleeved on the rubber ring 13 on the bolt.The rubber vibration isolation cushion 9 of the TMD system layout that can be spaced a distance, base plate 10 is connected with body structure surface through diameter, the vertical Shock-proof bolt 11 that is of convenient length.Around the plant storage case 7, be positioned at the concrete beam edge that give prominence to column 1 surface and crossbeam bottom, antidetonation positive stop 13 is installed, prevent that plant storage case 7 is excessive and fall at shake effect bottom offset doughtily.Column 1 provides good support can for the antidetonation positive stop with concrete beam.Last connection connects the jail with steel plate 8 and plant storage case 7 usefulness high-strength bolts.
The green damping of the utility model, the principle of vibration damping bridge tower are as mass, with rubber vibration isolation cushion 9 formation TMD damping (shaking) systems with plant storage case 7; Water tank 12 constitutes TLD damping (shaking) system as the liquid quality body; Except that last connection with the necessary part such as steel plate 8, base plate 10, rubber vibration isolation cushion 9, also comprise high-strength bolt, connect with built-in fitting etc.
The above only is the preferred implementation of the utility model; Be noted that for those skilled in the art; Under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (5)
1. a green damping, vibration damping bridge tower, it is characterized in that: comprise conventional bridge tower, tuned mass damper system and Tuned Liquid system, said conventional bridge tower comprises the column (1) of both sides and the crossbeam between the column (1); Said tuned mass damper system comprises plant storage case (7) and is installed in the rubber vibration isolation cushion (9) on the base plate (10); Said rubber vibration isolation cushion (9) top is connected through steel plate (8) with plant storage case (7), and said base plate (10) is connected with crossbeam ground through vertical Shock-proof bolt (11); Said Tuned Liquid system comprises the water tank (12) that is fixed on cat head.
2. green damping according to claim 1, vibration damping bridge tower is characterized in that: said plant storage case (7) periphery is provided with antidetonation positive stop (13).
3. green damping according to claim 1, vibration damping bridge tower is characterized in that: said vertical Shock-proof bolt (11) comprises bolt head and is sleeved on the rubber ring (13) on the bolt.
4. green damping according to claim 1, vibration damping bridge tower is characterized in that: said plant storage case (7) is the box-structure of upper opening, and the plant storage case cultivates plants above (7), places cobble, sand or earth below the plant.
5. green damping according to claim 1, vibration damping bridge tower is characterized in that: the volume of the inner dress of said water tank (12) water is 2/3 of water tank (a 12) volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220013646XU CN202500086U (en) | 2012-01-13 | 2012-01-13 | Green shock absorption and vibration attenuation bridge tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220013646XU CN202500086U (en) | 2012-01-13 | 2012-01-13 | Green shock absorption and vibration attenuation bridge tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202500086U true CN202500086U (en) | 2012-10-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220013646XU Withdrawn - After Issue CN202500086U (en) | 2012-01-13 | 2012-01-13 | Green shock absorption and vibration attenuation bridge tower |
Country Status (1)
| Country | Link |
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| CN (1) | CN202500086U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102561174A (en) * | 2012-01-13 | 2012-07-11 | 东南大学 | Green shock and vibration absorbing bridge tower |
| CN103266563A (en) * | 2013-05-28 | 2013-08-28 | 中国市政工程西北设计研究院有限公司 | Integrated structure of wind power generating device and bridge tower |
| CN103541458A (en) * | 2013-11-08 | 2014-01-29 | 同济大学 | Novel TLD (Tuned Liquid Damper) |
-
2012
- 2012-01-13 CN CN201220013646XU patent/CN202500086U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102561174A (en) * | 2012-01-13 | 2012-07-11 | 东南大学 | Green shock and vibration absorbing bridge tower |
| CN102561174B (en) * | 2012-01-13 | 2014-05-07 | 东南大学 | Green shock and vibration absorbing bridge tower |
| CN103266563A (en) * | 2013-05-28 | 2013-08-28 | 中国市政工程西北设计研究院有限公司 | Integrated structure of wind power generating device and bridge tower |
| CN103541458A (en) * | 2013-11-08 | 2014-01-29 | 同济大学 | Novel TLD (Tuned Liquid Damper) |
| CN103541458B (en) * | 2013-11-08 | 2015-07-29 | 同济大学 | A kind of novel Tuned Liquid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121024 Effective date of abandoning: 20140507 |
|
| RGAV | Abandon patent right to avoid regrant |