CN204325918U - Orthotropic Steel Bridge Deck diaphragm crosses floor open-pore construction - Google Patents
Orthotropic Steel Bridge Deck diaphragm crosses floor open-pore construction Download PDFInfo
- Publication number
- CN204325918U CN204325918U CN201420692875.8U CN201420692875U CN204325918U CN 204325918 U CN204325918 U CN 204325918U CN 201420692875 U CN201420692875 U CN 201420692875U CN 204325918 U CN204325918 U CN 204325918U
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- section
- upper straight
- floor
- bridge deck
- arc
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Abstract
The utility model relates to a kind of Orthotropic Steel Bridge Deck diaphragm and crosses floor open-pore construction.Upper straight section, the bottom arc section that floor perforate comprises bottom straightway and both sides crossed by dividing plate, it is characterized in that: between the upper straight section of described both sides and bottom arc section, arc transition section is set, this arc transition section relative to upper straight section evagination, and arc transition section and upper straight section tangent.The beneficial effects of the utility model are, diaphragm crosses floor perforate all with the smoother transition of arc section, without the wedge angle of evagination, can farthest alleviate diaphragm cross floor perforate corner stress concentrate, postponement fatigue crack produces, thus obtains better anti-fatigue performance; Cross the design of floor open-pore construction for Orthotropic Steel Bridge Deck diaphragm and a kind of new thinking is provided.
Description
Technical field
The utility model relates to a kind of Orthotropic Steel Bridge Deck structure, and particularly a kind of Orthotropic Steel Bridge Deck diaphragm crosses floor open-pore construction.
Background technology
Orthotropic Steel Bridge Deck is a kind of conventional form of structure in bridge steel structure, and under long-term alternate load effect, its fatigue problem is comparatively outstanding, and the fatigue crack that diaphragm crosses floor perforate corner is one of modal disease of orthogonal profile iron bridge deck.
To this, be that the perforate that Orthotropic Steel Bridge Deck diaphragm crosses floor is designed to arc transition at present in the treatment measures of design aspect, to alleviate or stress transfer is concentrated, thus improve its anti-fatigue performance.For different floor patterns, current diaphragm crosses floor open-pore construction four kinds of common open-pore construction.These four kinds of diaphragms cross floor open-pore construction all a common ground, namely cross at diaphragm the wedge angle that floor perforate corner all can form an evagination, from geometrical configuration, the wedge angle of this evagination is easy to cause stress to be concentrated in wedge angle position, become a key factor of fatigue crack from then on position germinating thus, engineering practice shows that fatigue crack germinates and develops from wedge angle position.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of Orthotropic Steel Bridge Deck diaphragm and crosses floor open-pore construction, with farthest alleviate diaphragm cross floor perforate corner stress concentrate, postponement fatigue crack produces, thus obtains better anti-fatigue performance.
The utility model solves the technical scheme that its technical problem adopts:
Orthotropic Steel Bridge Deck diaphragm of the present utility model crosses floor open-pore construction, upper straight section, the bottom arc section that floor perforate comprises bottom straightway and both sides crossed by dividing plate, it is characterized in that: between the upper straight section of described both sides and bottom arc section, arc transition section is set, this arc transition section relative to upper straight section evagination, and arc transition section and upper straight section tangent.
The beneficial effects of the utility model are, diaphragm crosses floor perforate all with the smoother transition of arc section, without the wedge angle of evagination, can farthest alleviate diaphragm cross floor perforate corner stress concentrate, postponement fatigue crack produces, thus obtains better anti-fatigue performance; Cross the design of floor open-pore construction for Orthotropic Steel Bridge Deck diaphragm and a kind of new thinking is provided.
Accompanying drawing explanation
This manual comprises following four width accompanying drawings:
Fig. 1 is the elevation that existing Orthotropic Steel Bridge Deck diaphragm crosses floor open-pore construction;
Fig. 2 is the enlarged drawing of A local in Fig. 1;
Fig. 3 is the elevation that the utility model Orthotropic Steel Bridge Deck diaphragm crosses floor open-pore construction;
Fig. 4 is the enlarged drawing of B local in Fig. 3;
Toponym and corresponding mark is shown: upper straight section L in figure
1, arc transition section L
2, bottom arc section L
3, bottom straightway L
4, indent arc section L
5.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is that existing Orthotropic Steel Bridge Deck diaphragm crosses floor open-pore construction, and dividing plate is crossed floor perforate and comprised bottom straightway L
4with the upper straight section L of both sides
1, indent arc section L
5.With reference to Fig. 2, at upper straight section L
1with indent arc section L
5intersection (namely floor perforate corner crossed by dividing plate) can form the wedge angle of an evagination, the wedge angle of this evagination is easy to cause stress to be concentrated in wedge angle position, become a key factor of fatigue crack from then on position germinating thus, engineering practice shows that fatigue crack germinates and develops from wedge angle position.
With reference to Fig. 3 and Fig. 4, Orthotropic Steel Bridge Deck diaphragm of the present utility model crosses floor open-pore construction, and dividing plate is crossed floor perforate and comprised bottom straightway L
4with the upper straight section L of both sides
1, bottom arc section L
3, the upper straight section L of described both sides
1with bottom arc section L
3between arc transition section L is set
2, this arc transition section L
2relative to upper straight section L
1evagination, and arc transition section L
2with upper straight section L
1tangent.
Diaphragm crosses floor perforate all with the transition of arc section smoother ground, without the wedge angle of evagination, compared with existing perforate mode, can farthest alleviate diaphragm cross floor perforate corner stress concentrate, postpone fatigue crack generation time, thus obtain better anti-fatigue performance.
The above the utility model Orthotropic Steel Bridge Deck diaphragm that just explains through diagrams crosses some principles of floor open-pore construction, be not the utility model to be confined to shown in and in described concrete structure and the scope of application, therefore every corresponding modify of being likely utilized and equivalent, all belong to the scope of the claims that the utility model is applied for.
Claims (1)
1. Orthotropic Steel Bridge Deck diaphragm crosses floor open-pore construction, and dividing plate is crossed floor perforate and comprised bottom straightway (L
4) and the upper straight section (L of both sides
1), bottom arc section (L
3), it is characterized in that: the upper straight section (L of described both sides
1) and bottom arc section (L
3) between arc transition section (L is set
2), this arc transition section (L
2) relative to upper straight section (L
1) evagination, and arc transition section (L
2) and upper straight section (L
1) tangent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420692875.8U CN204325918U (en) | 2014-11-18 | 2014-11-18 | Orthotropic Steel Bridge Deck diaphragm crosses floor open-pore construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420692875.8U CN204325918U (en) | 2014-11-18 | 2014-11-18 | Orthotropic Steel Bridge Deck diaphragm crosses floor open-pore construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204325918U true CN204325918U (en) | 2015-05-13 |
Family
ID=53162294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420692875.8U Expired - Fee Related CN204325918U (en) | 2014-11-18 | 2014-11-18 | Orthotropic Steel Bridge Deck diaphragm crosses floor open-pore construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204325918U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111175158A (en) * | 2020-02-10 | 2020-05-19 | 天津大学 | Open structure corner fatigue and crack propagation measurement sample |
| CN111962393A (en) * | 2020-08-26 | 2020-11-20 | 西南交通大学 | Double-side welding orthotropic steel bridge deck plate with cross details of transverse partition plates and longitudinal ribs |
-
2014
- 2014-11-18 CN CN201420692875.8U patent/CN204325918U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111175158A (en) * | 2020-02-10 | 2020-05-19 | 天津大学 | Open structure corner fatigue and crack propagation measurement sample |
| CN111962393A (en) * | 2020-08-26 | 2020-11-20 | 西南交通大学 | Double-side welding orthotropic steel bridge deck plate with cross details of transverse partition plates and longitudinal ribs |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20151118 |
|
| EXPY | Termination of patent right or utility model |