CN109235227A - It is a kind of improve people's row suspension cable vestibule bridge girder galloping stability deflector pneumatically construct - Google Patents
It is a kind of improve people's row suspension cable vestibule bridge girder galloping stability deflector pneumatically construct Download PDFInfo
- Publication number
- CN109235227A CN109235227A CN201811235091.1A CN201811235091A CN109235227A CN 109235227 A CN109235227 A CN 109235227A CN 201811235091 A CN201811235091 A CN 201811235091A CN 109235227 A CN109235227 A CN 109235227A
- Authority
- CN
- China
- Prior art keywords
- deflector
- girder
- pneumatically
- stability
- suspension cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/02—Suspension bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of deflectors for improving people's row suspension cable vestibule bridge girder galloping stability pneumatically to construct, grid is formed plus the strip deflector being spaced apart between girder and side bar, vertical stability plate is installed on the inside of girder simultaneously, it is symmetrically arranged in girder beam bottom, the pneumatic construction that steadying plate and deflector collectively constitute, effectively raises the galloping stability of the bridge girder.
Description
Technical field
The present invention relates to a kind of deflectors for improving people's row suspension cable vestibule bridge girder galloping stability pneumatically to construct, and belongs to bridge
Beam Wind Engineering field.
Background technique
With economic development and people's living needs, various regions start largely to build people's row suspension cable vestibule bridge.But people's row is outstanding
Rope vestibule spanning degree is larger, bridge floor is very narrow, sensitive to wind, it is necessary to consider the wind resistance safety of structure.Especially coastal area of southeastern China
Regional typhoon takes place frequently and its topography and geomorphology on periphery, feature building etc. cause wind environment characteristic extremely complex.Therefore, to ensure people
The wind resistance of row suspension cable vestibule bridge is safe and using comfortably, must pass through the means such as wind tunnel test, Wind-induced Vibration Analysis, to the wind resistance of bridge
Characteristic makes assessment, to examine its wind force proofing design, and proposes countermeasure effectively, economic for anti-wind problems that may be present.
Stable aerodynamic force can be obtained by installing additional actively or passively control plane, wherein arranging water conservancy diversion in Bridge Sections
Plate, suppression plate or spoiler, center stablize power etc. and can also be improved the galloping stability of bridge to change rounded flowing pattern.But it is this kind of
The mechanism of method not yet thoroughly research, so the specific pattern of this kind of deflector, size and arrangement position require to pass through wind-tunnel
Test is to test.
Summary of the invention
For the galloping stability for improving above-mentioned people's row suspension cable vestibule bridge, the present invention provides a kind of raising people row suspension cable vestibule bridge
The deflector of girder galloping stability pneumatically constructs, the specific scheme is that
Increase multiple lateral deflectors to be distributed at the top of the girder of two sides between side bar；Two vertical stability plates are respectively along bridge
To the inside for being distributed in two sides girder bottom.
Further transverse direction deflector is long 1m, the rectangular strap chamfering thin slice of wide 0.5m.Cover girder top and side bar
Between gap, form grid, be spaced 0.5m between every two adjacent transverse deflector.
Further vertical stability plate is the strip that width is 0.2m, along bridge to the inside edge of a wing for being distributed in both ends girder.
Compared with prior art, the beneficial effects of the present invention are:
The deflector for devising a kind of raising people's row suspension cable vestibule bridge girder galloping stability pneumatically constructs, can be effective
The galloping of the type people row suspension cable vestibule bridge is controlled, and is more economically applicable in, it is simple and beautiful.
Detailed description of the invention
Fig. 1 is the pneumatic structural section of deflector；
Fig. 2 is that deflector pneumatically constructs top view.
Specific embodiment
The present invention is described in further detail in the following with reference to the drawings and specific embodiments.
Fig. 1 is the pneumatic structural section of deflector, and Fig. 2 is top view.
For the validity for verifying this structure, it is being 1 with real bridge ratio that test carries out in Southwest Jiaotong University XNJD-1:
In 10 wind tunnel test span centre Segment Model, model high 5.7cm, wide 34.5cm, I-shaped girder (3) high 4.7cm, side bar (4) is
Diameter is the round tube section of 2.5cm.Model deflector (1) is long 10cm, and the rectangular strap chamfering thin slice of wide 5cm covers girder
(3) gap between side bar (4) forms grid, is spaced 5cm between every two transverse direction deflector.Vertical stability plate (2) is wide
For the strip of 2cm, along bridge to the inside edge of a wing for being distributed in both ends I-shaped girder (3).Steadying plate is collectively constituted with deflector above
Improve the pneumatic construction of bridge galloping performance.
Under the verifying of wind tunnel test, which effectively improves the galloping stability of suspension cable vestibule bridge girder section.
Claims (4)
1. a kind of deflector for improving people's row suspension cable vestibule bridge girder galloping stability pneumatically constructs, which is characterized in that multiple cross
It is distributed at the top of two sides girder (3) between side bar (4) to deflector (1)；Two vertical stability plates (2) are respectively along bridge to distribution
The inside of girder (3) bottom in two sides.
2. the deflector according to claim 1 for improving people's row suspension cable vestibule bridge girder galloping stability pneumatically constructs,
It is characterized in that, the transverse direction deflector (1) is long 1m, the rectangular strap chamfering thin slice of wide 0.5m.
3. the deflector according to claim 1 for improving people's row suspension cable vestibule bridge girder galloping stability pneumatically constructs,
It is characterized in that, the transverse direction deflector (1) covers the gap at the top of girder (3) between side bar (4), forms grid, every two
Adjacent transverse deflector is spaced 0.5m between (1).
4. the deflector according to claim 1 for improving people's row suspension cable vestibule bridge girder galloping stability pneumatically constructs,
It is characterized in that, the vertical stability plate (2) is the strip that width is 0.2m, along bridge to the inside edge of a wing for being distributed in both ends girder (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811235091.1A CN109235227A (en) | 2018-10-23 | 2018-10-23 | It is a kind of improve people's row suspension cable vestibule bridge girder galloping stability deflector pneumatically construct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811235091.1A CN109235227A (en) | 2018-10-23 | 2018-10-23 | It is a kind of improve people's row suspension cable vestibule bridge girder galloping stability deflector pneumatically construct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109235227A true CN109235227A (en) | 2019-01-18 |
Family
ID=65081313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811235091.1A Pending CN109235227A (en) | 2018-10-23 | 2018-10-23 | It is a kind of improve people's row suspension cable vestibule bridge girder galloping stability deflector pneumatically construct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109235227A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110644350A (en) * | 2019-08-23 | 2020-01-03 | 深圳大学 | Bridge movable pneumatic measure device based on inertial volume vibration reduction and control method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000192422A (en) * | 1998-10-19 | 2000-07-11 | Nkk Corp | Wind-resistant bridge |
| JP2003027414A (en) * | 2001-07-16 | 2003-01-29 | Nkk Corp | Wind resisting bridge |
| CN106638278A (en) * | 2017-02-26 | 2017-05-10 | 西南交通大学 | Pneumatic structure for improving flutter performance of dual-layer road steel truss suspension bridge |
| CN108677686A (en) * | 2018-05-31 | 2018-10-19 | 同济大学 | A kind of control pneumatic structure for separate type steel box girder bridge Vortex-excited vibration |
| CN209276970U (en) * | 2018-10-23 | 2019-08-20 | 西南交通大学 | The deflector for improving people's row suspension cable vestibule bridge girder galloping stability pneumatically constructs |
-
2018
- 2018-10-23 CN CN201811235091.1A patent/CN109235227A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000192422A (en) * | 1998-10-19 | 2000-07-11 | Nkk Corp | Wind-resistant bridge |
| JP2003027414A (en) * | 2001-07-16 | 2003-01-29 | Nkk Corp | Wind resisting bridge |
| CN106638278A (en) * | 2017-02-26 | 2017-05-10 | 西南交通大学 | Pneumatic structure for improving flutter performance of dual-layer road steel truss suspension bridge |
| CN108677686A (en) * | 2018-05-31 | 2018-10-19 | 同济大学 | A kind of control pneumatic structure for separate type steel box girder bridge Vortex-excited vibration |
| CN209276970U (en) * | 2018-10-23 | 2019-08-20 | 西南交通大学 | The deflector for improving people's row suspension cable vestibule bridge girder galloping stability pneumatically constructs |
Non-Patent Citations (1)
| Title |
|---|
| 马林林: "窄桁架悬索桥颤振稳定性研究", 硕士学位论文全文库 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110644350A (en) * | 2019-08-23 | 2020-01-03 | 深圳大学 | Bridge movable pneumatic measure device based on inertial volume vibration reduction and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Grant et al. | Urban wind energy conversion: The potential of ducted turbines | |
| Xiang et al. | Wind loads of moving vehicle on bridge with solid wind barrier | |
| Kozmar et al. | Sheltering efficiency of wind barriers on bridges | |
| WO2011063068A2 (en) | Road sheltering and optimization | |
| CN107503281B (en) | Vortex generator-based large-span bridge wind-induced vibration flow control method | |
| CN109898405B (en) | Intelligent adjusting grid device and method for inhibiting wind vibration of split box girder | |
| CN209276970U (en) | The deflector for improving people's row suspension cable vestibule bridge girder galloping stability pneumatically constructs | |
| CA2775149A1 (en) | Solar energy generation system | |
| CN201459615U (en) | Highway wind break | |
| CN109235227A (en) | It is a kind of improve people's row suspension cable vestibule bridge girder galloping stability deflector pneumatically construct | |
| CN204475204U (en) | Adjustable automatic deloading sound barrier | |
| CN101781876B (en) | Vortex-induced vibration inhibiting device of steel trussed beam cable-stayed bridge | |
| CN209099150U (en) | It is a kind of improve people's row suspension cable vestibule bridge girder galloping stability aperture pneumatically construct | |
| Zhang et al. | Wind tunnel test on local wind field around the bridge tower of a truss girder | |
| CN203668829U (en) | Wet joint construction protection plate of over-crossing bridge | |
| CN209572630U (en) | A kind of lighting equipment of photovoltaic agricultural greenhouse | |
| CN108221642B (en) | Pneumatic structure for improving wind vibration performance of H-shaped blunt body structure of bridge | |
| Ikeda et al. | Aerodynamic noise reduction in pantographs by shape-smoothing of the panhead and its support and by use of porous material in surface coverings | |
| CN207878257U (en) | A kind of flexible support structure of the aerial express occupation bridge of suspension type | |
| CN202215037U (en) | Wind-resistant H-shaped steel column for high-speed railway contact network | |
| CN112030722A (en) | Method for reducing bridge wind vibration | |
| CN102409887A (en) | Wind-resistant H-shaped steel column for high-speed railway contact network and method for determining aperture ratio of wind-resistant H-shaped steel column | |
| CN209040685U (en) | A kind of checking device | |
| CN207812190U (en) | A kind of suspension type monorail two-wire steel track beam system | |
| CN202673570U (en) | Expressway wind concentrating electricity generating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |