CN203977292U - A kind of U-shaped rib - Google Patents
A kind of U-shaped rib Download PDFInfo
- Publication number
- CN203977292U CN203977292U CN201420305499.2U CN201420305499U CN203977292U CN 203977292 U CN203977292 U CN 203977292U CN 201420305499 U CN201420305499 U CN 201420305499U CN 203977292 U CN203977292 U CN 203977292U
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- shaped rib
- openend
- bridge deck
- groove
- outside
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Abstract
The utility model discloses a kind of U-shaped rib, the both ends progressive additive of its openend, and the outside, both ends of described openend has groove.Preferably, the both ends of described openend are circular arc gradual change and thicken; Preferably, outside, the both ends of described openend progressive additive from the bottom to top; Described groove bevel angle is 45 °～55 °; The root face of described groove is of a size of 2-3mm; The U-shaped rib structure that is formed in one.The utility model is by thickening the both ends of U-shaped rib openend and groove being set, can only carry out the prerequisite of one side welding from outside at the U-shaped rib of adaptation, increase the bonding area of U-shaped rib and bridge deck, improve the bonding strength of U-shaped rib and bridge deck weld, improve the anti-fatigue performance of weld seam, thereby make U-shaped rib and bridge deck equivalent life, the bonding area that solved existing U-shaped rib and bridge deck is little, the problem of the easy fatigue cracking of weld seam, can be widely used in cross bridge floor board and other orthotropic rectangular plates structure.
Description
Technical field
The utility model belongs to the technical field of bridge engineering structure and other orthotropic rectangular plates structures, particularly a kind of stiffening rib of remaining silent for cross bridge floor board and other orthotropic structure.
Background technology
At present, cross bridge floor board is widely applied in bridge engineering, and cross bridge floor board mainly forms by steel bridge deck and with the crossbeam of its welding, vertical rib, and crossbeam is mainly diaphragm, and it is U-shaped rib that vertical rib is mainly the stiffening rib of remaining silent.
Because the thickness of diaphragm is generally more than 12mm, and can two-sided welding when diaphragm and bridge deck welding, therefore, welding quality is comparatively reliable.And U-shaped rib is for remaining silent structure, can only adopt the mode of outside one side welding, and current U-shaped rib be that 8mm is all thick substantially, in order to ensure that U-shaped rib can not burn when the welding, also to leave the root face of 2-3mm, the bonding area of U-shaped like this rib and bridge deck is just very little.Therefore, bridge floor is under the repeated action of wheel load, and between bridge deck and U-shaped rib, weld seam is easy to fatigue cracking.Once fatigue crack produces the rigidity that will reduce bridge deck, and the destruction that causes thus bridge deck pavement, the use that even jeopardizes bridge.
Therefore, in the urgent need to the U-shaped rib of generally applying is at present improved, increase the bonding area of U-shaped rib and bridge deck, improve weldquality, solve the problem that fatigue cracking easily appears in weld seam, ensure U-shaped rib and bridge deck equivalent life.
Utility model content
In order to solve, the bonding area of existing U-shaped rib and bridge deck is little, the problem of the easy fatigue cracking of weld seam, the utility model provides a kind of U-shaped rib of end upsetting, to increase the bonding area of U-shaped rib and bridge deck, improve the anti-fatigue performance of weld seam, make U-shaped rib and bridge deck equivalent life.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is:
A kind of U-shaped rib, the outside, both ends of its openend has groove, and the both ends of described openend are circular arc gradual change and thicken, outside, the both ends progressive additive from the bottom to top of described openend.
For ease of roll forming and welding, preferably, outside, the both ends progressive additive from the bottom to top of described openend.
Preferably, described groove bevel angle is 45 °～55 °.
Preferably, the root face of described groove is of a size of 2-3mm.
Preferably, the both ends of described openend and the remainder of the U-shaped rib structure that is formed in one.
The utility model is by thickening the both ends of U-shaped rib openend and groove being set, can only carry out the prerequisite of one side welding from outside at the U-shaped rib of adaptation, increase the bonding area of U-shaped rib and bridge deck, improve the bonding strength of U-shaped rib and bridge deck weld, improve the anti-fatigue performance of weld seam, thereby make U-shaped rib and bridge deck equivalent life, the bonding area that solved existing U-shaped rib and bridge deck is little, the problem of the easy fatigue cracking of weld seam.
Brief description of the drawings
Fig. 1 is the structural representation of the U-shaped rib cross section of the utility model one embodiment;
Fig. 2 is the place of end A shown in Fig. 1 enlarged diagram;
In figure: 1, U-shaped rib; 2, back cover; 3a, web; 3b, web; 4a, end; 4b, end; 5a, groove; 5b, groove; 6, panel.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1-2, the U-shaped rib 1 in the present embodiment, its back cover 2, web 3a and 3b and end 4a and 4b global formation.The end 4a of U-shaped rib 1 and 4b be thickening gradually from the bottom to top in outside, and is provided with groove 5a and 5b at end 4a and 4b and panel 6 places of being welded to connect.After end-thickened, can strengthen groove size, increase bonding area, improve weldquality, improve the anti-fatigue performance of weld seam.
In the present embodiment, U-shaped rib 1 is by hot rolling technique global formation, and end 4a and 4b thickening place adopt particular manufacturing craft extrusion modling.Apparently, U-shaped rib 1 also can by cold extrusion and end 4a and 4b spot heating extruding pier be thick etc. processes forms.
In the present embodiment, the thickening mode of end 4a and 4b is circular arc gradual change, arc radius is 40-50mm, the bevel angle α of groove 5a and 5b is 45 °-55 °, root face is of a size of 2-3mm, and the height of U-shaped rib 1 is 260-380mm, and width is 300-400mm, above-mentioned numerical value should specifically be determined as the case may be, ensure its applicability for different situations and reasonability in construction in span.
As a routine preferably, the thickening mode of end 4a and 4b is circular arc gradual change, and arc radius is 43.7mm, and the bevel angle α of groove 5a, 5b is 55 °, and root face is of a size of 3mm, and the height of U-shaped rib 1 is 300mm, and width is 300mm.The definite of above numerical value is the optimization value of doing for the dimensional parameters of the U-shaped rib of current routine, has stronger practicality.
In addition, the thickening mode of end 4a and 4b also can be other modes such as rectigradation.
By reference to the accompanying drawings embodiment of the present utility model is explained in detail above; but the utility model is not limited to above-described embodiment; in the ken possessing those of ordinary skill in the art; can also under the prerequisite that does not depart from the utility model aim, make obtaining various variations, also should be considered as protection domain of the present utility model.
Claims (4)
1. a U-shaped rib, is characterized in that: the outside, both ends of its openend has groove, and the both ends of described openend are circular arc gradual change and thicken, outside, the both ends progressive additive from the bottom to top of described openend.
2. U-shaped rib according to claim 1, is characterized in that: described groove bevel angle is 45 °～55 °.
3. U-shaped rib according to claim 1, is characterized in that: the root face of described groove is of a size of 2-3mm.
4. U-shaped rib according to claim 1, is characterized in that: the both ends of described openend and the remainder of the U-shaped rib structure that is formed in one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420305499.2U CN203977292U (en) | 2014-06-10 | 2014-06-10 | A kind of U-shaped rib |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420305499.2U CN203977292U (en) | 2014-06-10 | 2014-06-10 | A kind of U-shaped rib |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203977292U true CN203977292U (en) | 2014-12-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420305499.2U Expired - Fee Related CN203977292U (en) | 2014-06-10 | 2014-06-10 | A kind of U-shaped rib |
Country Status (1)
| Country | Link |
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| CN (1) | CN203977292U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104625654A (en) * | 2015-02-12 | 2015-05-20 | 南京天润型钢有限公司 | Production method for unequal thickness U rib formation |
| CN104947587A (en) * | 2015-05-21 | 2015-09-30 | 北京百善重工有限公司 | U-shaped rib and manufacturing method thereof |
| CN107938508A (en) * | 2017-02-22 | 2018-04-20 | 重庆大学 | A kind of HRP Orthotropic Steel Bridge Decks structure |
| CN108265625A (en) * | 2018-01-28 | 2018-07-10 | 北京工业大学 | A kind of U-shaped rib and processing method |
| CN108436320A (en) * | 2018-05-28 | 2018-08-24 | 湖北天图桥梁技术研究有限公司 | A kind of U ribs and orthotropic plate unit and its welding manufacture method |
| CN111545940A (en) * | 2020-05-06 | 2020-08-18 | 深圳市市政设计研究院有限公司 | Anti-fatigue orthotropic plate structure and production process |
-
2014
- 2014-06-10 CN CN201420305499.2U patent/CN203977292U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104625654A (en) * | 2015-02-12 | 2015-05-20 | 南京天润型钢有限公司 | Production method for unequal thickness U rib formation |
| CN104947587A (en) * | 2015-05-21 | 2015-09-30 | 北京百善重工有限公司 | U-shaped rib and manufacturing method thereof |
| CN107938508A (en) * | 2017-02-22 | 2018-04-20 | 重庆大学 | A kind of HRP Orthotropic Steel Bridge Decks structure |
| CN108265625A (en) * | 2018-01-28 | 2018-07-10 | 北京工业大学 | A kind of U-shaped rib and processing method |
| CN108436320A (en) * | 2018-05-28 | 2018-08-24 | 湖北天图桥梁技术研究有限公司 | A kind of U ribs and orthotropic plate unit and its welding manufacture method |
| CN111545940A (en) * | 2020-05-06 | 2020-08-18 | 深圳市市政设计研究院有限公司 | Anti-fatigue orthotropic plate structure and production process |
| CN111545940B (en) * | 2020-05-06 | 2021-01-15 | 深圳市市政设计研究院有限公司 | Anti-fatigue orthotropic plate and production process thereof |
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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: 20141203 Termination date: 20150610 |
|
| EXPY | Termination of patent right or utility model |