CN101469532A - Anti-cracking processing method for steel box girder steel bridge deck asphalt layer - Google Patents
Anti-cracking processing method for steel box girder steel bridge deck asphalt layer Download PDFInfo
- Publication number
- CN101469532A CN101469532A CNA2007101690004A CN200710169000A CN101469532A CN 101469532 A CN101469532 A CN 101469532A CN A2007101690004 A CNA2007101690004 A CN A2007101690004A CN 200710169000 A CN200710169000 A CN 200710169000A CN 101469532 A CN101469532 A CN 101469532A
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- steel
- bridge
- asphalt layer
- box girder
- processing method
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Abstract
The invention relates to a processing method for asphalt layer splitting prevention on iron bridge surface of steel box girder bridge, wherein H-shaped iron bars are ordered and installed in intermittent array according to a determined mode on the iron bridge surface plate, making H-shaped iron bars integrated with the bridge surface iron plate, so as to reinforcing earthquake-proof and adhesion strength of the bridge surface asphalt layer, prevent the asphalt layer and the bridge surface iron plate from deformation, prolong life of road, lower maintenance cost of the bridge.
Description
Technical field the present invention relates to a kind of processing method of steel box girder steel bridge bridge floor asphalt mixture surfacing anti-cracking, be specially the steel bridge floor by certain way " worker " font steel bar is installed so that asphalt mixture surfacing more strong bond on steel bridge floor panel and be difficult for taking off and split.
Background technology has many steel case beam bridges now, the asphalt roofing of its steel deck paving, after being open to traffic soon, roll off repeatedly through vehicle, its bitumen layer is taken off easily and is split after the bridge floor generation vibrations, and some bridge just keeped in repair through the heavy black top in several road surface in 1 year, caused very big influence to traffic, increase great deal of labor for the maintenance of bridge, also caused a large amount of material resources wastes.
Summary of the invention purpose of the present invention aim to provide a kind of the steel bridge by certain way " worker " font steel bar is installed so that asphalt mixture surfacing more strong bond be difficult for taking off the bridge floor processing method of splitting in the steel bridge floor.
The implementation of the object of the invention is, the bitumen layer of being laid at steel case fine strain of millet bridge steel bridge floor is below 1, and the steel bridge deck are more than 2, presses certain way and arranges " worker " font steel bar 3 is installed, as shown in Figure 1, the height h of " worker " font steel bar 3 should be the thickness t of bitumen layer 1
Extremely
Between be advisable, that is:
" worker " font steel bar 3 should firmly weld or be riveted on the steel bridge deck 2, and the two can be combined together, and the vertical plane of I-shaped steel bar can suitably bore some holes to increase the bond strength between the two.
The arrangement mode of " worker " font steel bar 3 on bridge floor steel plate 2 is: " worker " font steel bar 3 is arranged with the discontinuous formation, as shown in Figure 2, the every segment length's section of " worker " font steel bar a is advisable with 0.6m～1.2m, and its spacing b that links to each other between two sections can be less than 3cm～10cm of steel bar length a promptly: and a=b+ (3cm～10cm).Line-spacing c between " worker " font steel bar 3 every adjacent two row should equal the length a of steel bar 3, is advisable with 0.6m～1.2m. and the 3 every capable orientations of I shape steel bar should be vertical with vehicle heading.
Description of drawings
Fig. 1: the arrangement schematic cross-section of " worker " font steel bar in the steel deck asphalt layer.
Fig. 2: " the discontinuous formation " of " worker " font steel bar on the steel bridge floor arranged schematic diagram.
Specific embodiment the present invention welds or is riveted on the panel of steel bridge floor by certain arrangement mode with " worker " font steel bar, make it to combine together with the bridge floor steel plate, thereby strengthen the antidetonation and the adhesive strength of deck asphalt layer, preventing that bitumen layer and bridge floor steel plate from taking off splits, and prolongs road surface service life.
Claims (2)
1, the processing method of steel box girder steel bridge deck asphalt layer anti-cracking, the bitumen layer of being laid at the steel box girder steel bridge bridge floor is below 1, on the steel bridge floor panel 2, arrange installation " worker " font steel bar 3, " worker " font steel bar and bridge floor steel plate are combined together by certain mode.
2, " worker " font steel bar 3 is arranged as shown in Figure 2 with " discontinuous formation " arrangement mode and is installed on the bridge steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101690004A CN101469532A (en) | 2007-12-26 | 2007-12-26 | Anti-cracking processing method for steel box girder steel bridge deck asphalt layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101690004A CN101469532A (en) | 2007-12-26 | 2007-12-26 | Anti-cracking processing method for steel box girder steel bridge deck asphalt layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101469532A true CN101469532A (en) | 2009-07-01 |
Family
ID=40827315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101690004A Pending CN101469532A (en) | 2007-12-26 | 2007-12-26 | Anti-cracking processing method for steel box girder steel bridge deck asphalt layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101469532A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102154983A (en) * | 2011-05-17 | 2011-08-17 | 四川省交通运输厅公路规划勘察设计研究院 | Steel box structure of combined bridge deck |
| CN103850171A (en) * | 2014-03-31 | 2014-06-11 | 李艳辉 | All-steel open-web assembled flyover |
-
2007
- 2007-12-26 CN CNA2007101690004A patent/CN101469532A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102154983A (en) * | 2011-05-17 | 2011-08-17 | 四川省交通运输厅公路规划勘察设计研究院 | Steel box structure of combined bridge deck |
| CN103850171A (en) * | 2014-03-31 | 2014-06-11 | 李艳辉 | All-steel open-web assembled flyover |
| CN103850171B (en) * | 2014-03-31 | 2015-11-04 | 李艳辉 | A kind of all steel assembled overpass on an empty stomach |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090701 |