CN103790102A - Pier wave-making resistance reducer - Google Patents
Pier wave-making resistance reducer Download PDFInfo
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- CN103790102A CN103790102A CN201310723193.9A CN201310723193A CN103790102A CN 103790102 A CN103790102 A CN 103790102A CN 201310723193 A CN201310723193 A CN 201310723193A CN 103790102 A CN103790102 A CN 103790102A
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- nose
- pier
- bridge
- bridge pier
- slide rail
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Abstract
The invention provides a pier wave-making resistance reducer comprising a reducer body and a slide rail. The reducer body is of a nasal shape and comprises a nose part at the rear front, a nose bridge part at the upper front and a back part. The back part corresponds with the surface of a pier in terms of shape, and is connected with the pier through the slide rail in a vertical direction, and the reducer body is capable of moving up and down freely along the slide rail. The nose part is of a hollow structure, and the joint between the noise part and the noise bridge part is flush with the water level under effect of buoyancy. The pier wave-making resistance reducer is capable of effectively reducing water flow wave-making resistance and reducing impact to the pier from water flow so as to guarantee safety of the pier in the flood season.
Description
Technical field
The present invention relates to bridge construction field, be specifically related to a kind of bridge pier wave making resistance damper.
Background technology
According to " highway bridge and culvert design general specification " JTG D60-2004, the various loads and the external force that act on highway bridge are generalized into three classes: permanent action, variable action, accidental action.Wherein the effect relevant with water has two, i.e. buoyancy of water and flowing water pressure.Buoyancy of water belongs to permanent action, is actually the static pressure of water; Flowing water pressure belongs to variable action, is hydrodynamic pressure.
Bridge pier is on water, gas interface, in the time of water flow, and will be at the upper wave that rises of interface (or claiming the scope of freedom); On the other hand, water has again very important viscosity.Therefore, solve bridge pier the problem of water active force is not only related to free surface fluid mechanics problem but also relate to mechanics of viscous fluids problem.The physical essence occurring by active force is divided, and active force can be divided into frictional resistance R
f, pressure resistance R
p, and pressure resistance R
pbe divided into again the viscous pressure resistance R producing due to viscosity according to the reason of its generation
vp, the wave making resistance R that produces due to the existence on the scope of freedom
w.
Almost arrive annual flood season, all can have many bridge piers to be destroyed by rush of water.Bridge pier is subject in the active force of water, along with the flow velocity of water increases, and wave making resistance R
waccount for share increase, at most even can reach 50%.Therefore, if can effectively reduce wave making resistance R
w, certainly will be able to avoid the damaged or destroyed by flood accident of many bridges.
At present in bridge design, the physical essence not occurring according to the active force of above-mentioned water is determined the design load of bridge, because of rather than comprehensively, science, rational.
Summary of the invention
The present invention aims to provide a kind of bridge pier wave making resistance damper, and this wave making resistance damper can effectively be subdued current wave making resistance, reduces the impact of current to bridge pier, guarantees the safety of bridge in flood season.
Technical scheme of the present invention is as follows: a kind of bridge pier wave making resistance damper, comprise damper main body and slide rail, and described damper main body is nose type, comprises the nose of lower front, nose bridge and the back of front upper; Described back is corresponding with the pier face shape of bridge pier, and back is connected by the slide rail of vertical direction with bridge pier, and damper main body can move up and down freely along slide rail; Described nose is set to hollow structure, and under buoyancy, nose is concordant with the water surface with the junction of nose bridge.
Described nose is hemispherical, half pyriform, semielliptical shape, breakhead shape.
Described slide rail be fixedly installed in bridge pier on the pier face of water (flow) direction, on described back, be installed with the rolling bearing matching with slide rail.
The displacement of volume of described nose is no more than 1.7% with the ratio of bridge pier displacement of volume.
Described nose longitudinal section maximum area is not more than 11% with the ratio of bridge pier underwater portion longitudinal section area.
The wave making resistance when globoidal structure of bridge pier wave making resistance damper main body of the present invention can effectively reduce water flow, the safety of bridge while guaranteeing flood season; The hollow structure setting of nose and can adapt to the variation of water level with making damper main body coordinating of slide rail, keeps nose and the junction of nose bridge to be just positioned at the position under the water surface, and the effect of assurance damper is not fully exerted.
Accompanying drawing explanation
Fig. 1 is the top view of embodiment of the present invention Bridge 1 pier wave making resistance damper.
Fig. 2 is the slide rail schematic diagram of embodiment of the present invention Bridge 1 pier wave making resistance damper.
Fig. 3 is the front view of embodiment of the present invention Bridge 1 pier wave making resistance damper.
Fig. 4 is the lateral view of embodiment of the present invention Bridge 1 pier wave making resistance damper.
In figure, each several part title and label are as follows:
1 is damper main body, and 11 is nose, and 12 is nose bridge, and 13 is back, and 2 is slide rail, and 3 is bridge pier, and 4 is rolling bearing.
The specific embodiment
As shown in Fig. 1 ~ 4, the bridge pier wave making resistance damper that the present embodiment provides, comprises damper main body 1 and slide rail 2, and described damper main body 1 is nose type, comprises the nose 11 of lower front, nose bridge 12 and the back 13 of front upper; Described back 13 is corresponding with the pier face shape of bridge pier 3, and back 13 is connected by the slide rail 2 of vertical direction with bridge pier 3, and damper main body 1 can move up and down freely along slide rail 2; Described nose 11 is set to hollow structure, and under buoyancy, nose 11 is concordant with the water surface with the junction of nose bridge 12;
Described nose 11 is hemispherical;
Described slide rail 2 be fixedly installed in bridge pier 3 on the pier face of water (flow) direction, on described back 13, be installed with the rolling bearing 4 matching with slide rail 2;
The displacement of volume of described nose 11 is 1.0% with the ratio of bridge pier 5 displacement of volumes;
Described nose 11 longitudinal section maximum areas are 8% with the ratio of bridge pier 5 underwater portion longitudinal section areas.
The bridge pier wave making resistance damper that the present embodiment provides, comprises damper main body 1 and slide rail 2, and described damper main body 1 is nose type, comprises the nose 11 of lower front, nose bridge 12 and the back 13 of front upper; Described back 13 is corresponding with the pier face shape of bridge pier 3, and back 13 is connected by the slide rail 2 of vertical direction with bridge pier 3, and damper main body 1 can move up and down freely along slide rail 2; Described nose 11 is set to hollow structure, and under buoyancy, nose 11 is concordant with the water surface with the junction of nose bridge 12;
Described nose 11 is half pyriform;
Described nose bridge 12 is set to hollow structure;
Described slide rail 2 be fixedly installed in bridge pier 3 on the pier face of water (flow) direction, on described back 13, be installed with the rolling bearing 4 matching with slide rail 2;
The displacement of volume of described damper main body 1 is 1.5% with the ratio of bridge pier 5 displacement of volumes;
Described damper main body 1 longitudinal section maximum area is 10% with the ratio of bridge pier 5 underwater portion longitudinal section areas.
Claims (6)
1. a bridge pier wave making resistance damper, comprises damper main body (1) and slide rail (2), it is characterized in that:
Described damper main body (1) is nose type, comprises the nose (11) of lower front, nose bridge (12) and back (13) of front upper; Described back (13) is corresponding with the pier face shape of bridge pier (3), and back (13) are connected by the slide rail (2) of vertical direction with bridge pier (3), and damper main body (1) can move up and down freely along slide rail (2); Described nose (11) is set to hollow structure, and under buoyancy, nose (11) is concordant with the water surface with the junction of nose bridge (12).
2. bridge pier wave making resistance damper as claimed in claim 1, is characterized in that: described nose (11) is hemispherical, half pyriform, semielliptical shape or breakhead shape.
3. bridge pier wave making resistance damper as claimed in claim 1, is characterized in that: described nose bridge (12) is set to hollow structure.
4. bridge pier wave making resistance damper as claimed in claim 1, it is characterized in that: described slide rail (2) be fixedly installed in bridge pier (3) on the pier face of water (flow) direction, on described back (13), be installed with the rolling bearing (4) matching with slide rail (2).
5. bridge pier wave making resistance damper as claimed in claim 1, is characterized in that: the ratio of the displacement of volume of described nose (11) and bridge pier (3) displacement of volume is no more than 1.7%.
6. bridge pier wave making resistance damper as claimed in claim 1, is characterized in that: the ratio of the longitudinal section maximum area of described nose (11) and bridge pier (3) underwater portion longitudinal section area is not more than 11%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310723193.9A CN103790102A (en) | 2013-12-25 | 2013-12-25 | Pier wave-making resistance reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310723193.9A CN103790102A (en) | 2013-12-25 | 2013-12-25 | Pier wave-making resistance reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103790102A true CN103790102A (en) | 2014-05-14 |
Family
ID=50666123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310723193.9A Pending CN103790102A (en) | 2013-12-25 | 2013-12-25 | Pier wave-making resistance reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103790102A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112853942A (en) * | 2021-01-11 | 2021-05-28 | 大连理工大学 | Hinged rectifying plate for reducing water resistance of pier |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11117261A (en) * | 1997-10-17 | 1999-04-27 | Yokohama Rubber Co Ltd:The | Vertical type air fender |
| JP2004074891A (en) * | 2002-08-14 | 2004-03-11 | Sumitomo Heavy Ind Ltd | Ship |
| KR100583368B1 (en) * | 2006-02-15 | 2006-05-29 | (주)다산컨설턴트 | Institution of injury protect for bridge |
| CN2784455Y (en) * | 2005-03-14 | 2006-05-31 | 肖波 | Float type wave-reducing pier anti-collision device |
| CN201447692U (en) * | 2009-04-21 | 2010-05-05 | 南京工业大学 | Floating type composite material pier energy-dissipation anti-collision combined device |
| CN202193169U (en) * | 2011-08-18 | 2012-04-18 | 东莞杰腾造船有限公司 | Egg-shaped ship bow |
| CN202923831U (en) * | 2012-11-15 | 2013-05-08 | 浙江海洋学院 | High-performance ocean tuna purse seiner |
| CN203144970U (en) * | 2013-04-02 | 2013-08-21 | 株洲时代新材料科技股份有限公司 | Pier protecting device with ice impact resistant function and boat impact resistant function |
-
2013
- 2013-12-25 CN CN201310723193.9A patent/CN103790102A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11117261A (en) * | 1997-10-17 | 1999-04-27 | Yokohama Rubber Co Ltd:The | Vertical type air fender |
| JP2004074891A (en) * | 2002-08-14 | 2004-03-11 | Sumitomo Heavy Ind Ltd | Ship |
| CN2784455Y (en) * | 2005-03-14 | 2006-05-31 | 肖波 | Float type wave-reducing pier anti-collision device |
| KR100583368B1 (en) * | 2006-02-15 | 2006-05-29 | (주)다산컨설턴트 | Institution of injury protect for bridge |
| CN201447692U (en) * | 2009-04-21 | 2010-05-05 | 南京工业大学 | Floating type composite material pier energy-dissipation anti-collision combined device |
| CN202193169U (en) * | 2011-08-18 | 2012-04-18 | 东莞杰腾造船有限公司 | Egg-shaped ship bow |
| CN202923831U (en) * | 2012-11-15 | 2013-05-08 | 浙江海洋学院 | High-performance ocean tuna purse seiner |
| CN203144970U (en) * | 2013-04-02 | 2013-08-21 | 株洲时代新材料科技股份有限公司 | Pier protecting device with ice impact resistant function and boat impact resistant function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112853942A (en) * | 2021-01-11 | 2021-05-28 | 大连理工大学 | Hinged rectifying plate for reducing water resistance of pier |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140514 |