CN211472172U - Orthotropic bridge deck plate structure - Google Patents
Orthotropic bridge deck plate structure Download PDFInfo
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- CN211472172U CN211472172U CN201922191050.3U CN201922191050U CN211472172U CN 211472172 U CN211472172 U CN 211472172U CN 201922191050 U CN201922191050 U CN 201922191050U CN 211472172 U CN211472172 U CN 211472172U
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Abstract
The utility model provides an orthotropic bridge deck structure, which relates to the technical field of steel structure bridges, and comprises a top plate and stiffening ribs fixedly connected on the top plate at equal intervals, wherein the stiffening ribs adopt T ribs, and the T ribs are formed by welding T rib webs connected with the top plate and T rib cover plates connected with the T rib webs; the T-rib cover plate is connected with diaphragm plates at equal intervals, the diaphragm plates are formed by welding diaphragm cover plates connected with the T-rib cover plate and diaphragm webs connected with the diaphragm cover plates, and the top plate, the T ribs and the diaphragm plates form a stable supporting structure. The fillet weld between the T rib and the top plate can adopt double-sided welding, the welding process is simple, and the welding quality is easier to ensure; the bearing capacity of the structure is ensured, and meanwhile, the stress state of the structure is improved, and the local stress concentration is reduced; the sealing structure does not exist, the weld joint can be conveniently detected, the maintenance is convenient when the crack is found, and the traffic does not need to be interrupted.
Description
Technical Field
The utility model belongs to the technical field of steel construction bridge technique and specifically relates to an orthotropic bridge deck structure convenient to maintenance.
Background
The orthotropic bridge deck is mainly composed of a top plate and a stiffening rib for supporting the top plate through welding. The stiffening ribs are divided into an opening form and a closed form, and the closed U-shaped ribs are widely applied to the steel box girder bridge due to high bearing capacity. However, the U-rib has a problem of a very prominent fatigue crack, which is frequently generated at a joint weld portion between the top plate and the U-rib, a joint weld portion between the bulkhead and the U-rib, a groove portion where the U-rib crosses the bulkhead, and a longitudinal butt joint portion of the U-rib. Since the U-ribs are closed structures, cracks cannot be discovered and repaired unless the bridge deck pavement is excavated by interrupting traffic.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides an orthotropic bridge deck structure convenient to maintenance.
An orthotropic bridge deck structure comprises a top plate and stiffening ribs fixedly connected to the top plate at equal intervals, wherein the stiffening ribs are T ribs, and the T ribs are formed by welding T rib webs connected with the top plate and T rib cover plates connected with the T rib webs;
the T-rib cover plate is connected with diaphragm plates at equal intervals, the diaphragm plates are formed by welding diaphragm cover plates connected with the T-rib cover plate and diaphragm webs connected with the diaphragm cover plates, and the top plate, the T ribs and the diaphragm plates form a stable supporting structure.
Furthermore, a transverse rib plate connected with the T rib cover plate is arranged between the adjacent transverse partition cover plates.
Furthermore, T-shaped supports are arranged between adjacent T ribs and are formed by welding supporting webs connected with the diaphragm cover plates and supporting cover plates connected with the supporting webs, and the supporting cover plates are tightly pressed against the top plate in a contact mode.
Furthermore, a cushion pad is arranged between the supporting cover plate and the top plate.
The utility model has the advantages that: 1. the fillet weld between the T rib and the top plate can adopt double-sided welding, the welding process is simple, and the welding quality is easier to ensure; 2. the bearing capacity of the structure is ensured, and meanwhile, the stress state of the structure is improved, and the local stress concentration is reduced; 3. the device has no closed structure, is convenient to detect the welding seam, is convenient to maintain when finding the crack, and does not need to interrupt traffic; 4. the transverse stiffening ribs and the longitudinal stiffening ribs of the bridge deck have no cross relation, the structure is simple, the manufacturing difficulty is small, the integrity of the bridge deck is good, and the fatigue strength is high; 5. the diaphragm bearing capacity can be strengthened to the T shape support, utilizes the blotter as the buffer layer between roof and the T shape support, avoids stress concentration, improves structure fatigue resistance ability.
Drawings
FIG. 1 is a schematic view of the overall structure of an orthotropic deck slab structure.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings and specific embodiments, and it is to be understood that the described embodiments are only some embodiments, but not all embodiments, of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
Example 1
An orthotropic bridge deck structure is shown in figure 1 and comprises a top plate 1 and stiffening ribs 2 fixedly connected to the top plate at equal intervals, wherein the stiffening ribs 2 are T ribs, and the T ribs are formed by welding T rib webs connected with the top plate and T rib cover plates connected with the T rib webs.
The T-rib cover plate is welded at equal intervals or is fixedly connected with a diaphragm plate 3 through high-strength bolts, the diaphragm plate 3 is formed by welding a diaphragm cover plate connected with the T-rib cover plate and a diaphragm web plate connected with the diaphragm cover plate, and the top plate 1, the T-rib 2 and the diaphragm plate 3 form a stable supporting structure.
The fillet weld between the T rib and the top plate of the orthotropic bridge deck plate structure can adopt double-sided welding, the welding process is simple, and the welding quality is easier to ensure; the diaphragm plate and the top plate are not connected, the stress is simple, the rigidity mutation is avoided, the stress concentration is avoided, and the generation of fatigue cracks can be effectively reduced; the sealing structure does not exist, the weld joint can be conveniently detected, the maintenance is convenient when the crack is found, and the traffic does not need to be interrupted.
Be equipped with between the adjacent diaphragm apron with horizontal rib plate 4 that T rib apron is connected, horizontal rib plate 4 with T rib apron welded fastening or through high-strength bolt fixed connection, the width, thickness and the interval of horizontal rib plate set up according to actual need. The transverse rib plates for interconnecting the T ribs are arranged, no cross relation exists between the transverse stiffening ribs and the longitudinal stiffening ribs of the bridge deck, the structure is simple, the manufacturing difficulty is low, the integrity of the bridge deck is good, and the fatigue strength is high.
And T-shaped supports 5 are arranged between adjacent T ribs, each T-shaped support 5 is formed by welding a support web plate connected with the diaphragm cover plate and a support cover plate connected with the support web plate, and the support cover plates are tightly contacted and supported with the top plate 1. A buffer pad 6 is arranged between the supporting cover plate and the top plate. The diaphragm bearing capacity can be strengthened to the T shape support, utilizes the blotter as the buffer layer between roof and the T shape support, avoids stress concentration, improves structure fatigue resistance ability.
Finally, it should also be noted that the above list is only one specific embodiment of the present invention. Obviously, the present invention is not limited to the above embodiments, and many modifications are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the invention should be considered as within the scope of the invention.
Claims (4)
1. An orthotropic bridge deck structure comprises a top plate and stiffening ribs fixedly connected to the top plate at equal intervals, and is characterized in that the stiffening ribs adopt T ribs, and the T ribs are formed by welding T rib webs connected with the top plate and T rib cover plates connected with the T rib webs;
the T-rib cover plate is connected with diaphragm plates at equal intervals, the diaphragm plates are formed by welding diaphragm cover plates connected with the T-rib cover plate and diaphragm webs connected with the diaphragm cover plates, and the top plate, the T ribs and the diaphragm plates form a stable supporting structure.
2. An orthotropic deck plate structure according to claim 1, wherein between adjacent diaphragm deck plates there is a cross rib plate connected to said T-rib deck plates.
3. The orthotropic deck plate structure of claim 1 or 2, wherein T-shaped supports are arranged between adjacent T-shaped ribs, each T-shaped support is composed of a support web connected with the diaphragm cover plate and a support cover plate connected with the diaphragm cover plate in a welded mode, and the support cover plates are tightly contacted with the top plate.
4. An orthotropic deck panel structure according to claim 3, wherein a cushion pad is provided between said support deck and said top plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922191050.3U CN211472172U (en) | 2019-12-10 | 2019-12-10 | Orthotropic bridge deck plate structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922191050.3U CN211472172U (en) | 2019-12-10 | 2019-12-10 | Orthotropic bridge deck plate structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211472172U true CN211472172U (en) | 2020-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201922191050.3U Active CN211472172U (en) | 2019-12-10 | 2019-12-10 | Orthotropic bridge deck plate structure |
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| CN (1) | CN211472172U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112900262A (en) * | 2021-03-12 | 2021-06-04 | 湖南大学 | Combined bridge deck structure of bridge, bridge structure and construction method of bridge structure |
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2019
- 2019-12-10 CN CN201922191050.3U patent/CN211472172U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112900262A (en) * | 2021-03-12 | 2021-06-04 | 湖南大学 | Combined bridge deck structure of bridge, bridge structure and construction method of bridge structure |
| WO2022188666A1 (en) * | 2021-03-12 | 2022-09-15 | 湖南大学 | Combined bridge deck structure for bridge, and bridge structure and construction method therefor |
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