CN212426678U - Assembled light steel sheet composite beam bridge structure - Google Patents
Assembled light steel sheet composite beam bridge structure Download PDFInfo
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- CN212426678U CN212426678U CN202020651745.5U CN202020651745U CN212426678U CN 212426678 U CN212426678 U CN 212426678U CN 202020651745 U CN202020651745 U CN 202020651745U CN 212426678 U CN212426678 U CN 212426678U
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- composite beam
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- concrete
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 70
- 239000010959 steel Substances 0.000 title claims abstract description 70
- 239000002131 composite material Substances 0.000 title claims abstract description 27
- 239000004567 concrete Substances 0.000 claims abstract description 27
- 239000011374 ultra-high-performance concrete Substances 0.000 claims description 10
- 238000003466 welding Methods 0.000 claims description 7
- 238000011065 in-situ storage Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 9
- 238000005452 bending Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The utility model relates to an assembled light gauge steel board composite beam bridge structure, including the I shape girder, the crossbeam, profiled steel sheet, the cross slab, apron and concrete, the crossbeam is transversely established between two I shape girders, the crossbeam top is equipped with profiled steel sheet, the profiled steel sheet both sides are fixed on the I shape girder top flange, the profiled steel sheet top is equipped with the apron through the bolt, the profiled steel sheet, be equipped with cast in situ concrete in the tubular structure that forms between the I shape girder top flange and the apron, the profiled steel sheet below that is located between the I shape girder is provided with U type stiffening rib, the below of U type stiffening rib is equipped with the cross slab, the cross slab upper end is provided with the U-shaped groove, the cross slab below is fixed on the top flange of crossbeam. According to the assembled light steel plate composite beam bridge structure provided by the technical scheme, the problems that a concrete structure of the existing steel-concrete composite beam bridge needs to be poured on site seriously, a shear connecting piece between steel and concrete is easy to damage, and the repairing difficulty is large can be effectively solved.
Description
Technical Field
The utility model relates to a bridge engineering technical field, concretely relates to assembled light gauge steel board composite beam bridge structure.
Background
The steel-concrete combined beam bridge is a novel structure which combines a steel structure and a concrete structure into a whole and bears the force together, has the advantages of light dead weight, large bearing capacity, high construction speed, attractive structure appearance and the like, and is widely applied to medium and small-span bridges. The steel-concrete combined beam bridge fully exerts the characteristics of high tensile strength of steel and high compressive strength of concrete, so that the structure is more economical and reasonable, and the steel-concrete combined beam bridge has a good application prospect in bridge engineering.
At present, the I-shaped composite beam bridge and the groove-shaped composite beam bridge are widely applied, the lower part of the structure adopts a steel structure, and the upper part adopts cast-in-place concrete and is connected with the lower part through studs. In the construction process, local buckling easily occurs in a web plate in a hogging moment area under the action of construction loads such as cast-in-place concrete and a pavement layer due to overlarge compressive stress, and overall lateral torsion occurs in a positive bending moment area, so that the overall stability of a beam body is seriously influenced. Under the repeated action of traffic load in the operation process, the fatigue problem is easy to occur at the welding part of the transverse diaphragm plate or the transverse connection system of the steel main beam in the hogging moment area and the steel main beam, and the influence on the durability of the structure is large. The upper part of the traditional steel-concrete composite beam bridge is of a concrete structure, the self weight is large, a large amount of concrete needs to be poured in situ, a shear connecting piece between steel and concrete is easy to damage, the later repair difficulty is large, and the factors limit the spanning capacity and the application range of the composite beam bridge to a certain extent.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a light steel sheet combination beam bridge structure of assembled, simple structure, convenient to use can effectively solve the concrete structure that current steel-concrete combination beam bridge exists from great and need the site pouring to and the shear force connecting piece fragile between steel and the concrete, the big problem of the restoration degree of difficulty.
In order to solve the technical problem, the utility model discloses a following technical scheme:
an assembled light steel plate composite beam bridge structure comprises an I-shaped main beam, a cross beam, profiled steel plates, a diaphragm plate, a cover plate and concrete, the cross beam is transversely arranged between two I-shaped main beams which are arranged in parallel, a compression steel plate is arranged above the cross beam, the two sides of the profiled steel sheet are fixed on the upper flange of the I-shaped main beam through bolts, a cover plate is arranged above the profiled steel sheet through bolts, cast-in-place concrete is arranged in a tubular structure formed among the profiled steel sheet, the upper flange of the I-shaped main beam and the cover plate, a U-shaped stiffening rib is arranged below the profiled steel sheet positioned among the I-shaped main beams, the U-shaped stiffening rib is characterized in that a diaphragm plate is arranged below the U-shaped stiffening rib, a U-shaped groove matched with the shape of the U-shaped stiffening rib is formed in the position where the diaphragm plate is connected with the U-shaped stiffening rib, and the lower part of the diaphragm plate is fixed on the upper flange of the cross beam through the lower flange of the diaphragm plate.
Further, the corrugated angles of the two sides of the profiled steel sheet are 30-60 degrees.
The U-shaped stiffening ribs are arranged along the profiled steel sheet between the I-shaped main beams at intervals in a transverse equidistant mode, and the interval distance is 0.6-0.8 m.
The further scheme is that the transverse partition plate and the cross beam are arranged at equal intervals along the bridge direction, and the interval distance is 2.5-4.0 m.
The technical scheme is that bolt holes are formed in the I-shaped main beam, the profiled steel sheet and the cover plate, and the bolt holes are symmetrically arranged along the transverse bridge direction and are 2.0-4.0 m/group along the bridge direction.
According to a further scheme, the cover plates are arranged in a segmented mode along the bridge direction, the length of each segment is 6.0-10.0 m, and the adjacent longitudinal cover plates are connected through welding seams.
According to the assembled light steel plate composite beam bridge structure provided by the technical scheme, the upper part of the composite beam bridge is in a form of combining the profiled steel plate and the ultra-high performance concrete by combining the I-shaped main beam, the cross beam, the profiled steel plate with the U-shaped stiffening ribs, the transverse partition plate, the cover plate and the ultra-high performance concrete, so that the self weight of the structure can be obviously reduced, the construction difficulty is reduced, and the spanning capacity of the structure is improved; the profiled steel sheet, the upper flange of the I-shaped girder and the cover plate form a tubular structure above the steel girder, and Ultra High Performance Concrete (UHPC) is filled in the tubular structure to enhance the torsion resistance of the structure and meet the stress characteristic of a curved beam bridge; meanwhile, the connecting mode of high-strength bolts is adopted, so that the fatigue problem caused by the traditional welding stud can be effectively avoided, and the durability of the combined beam bridge is effectively improved; finally, only high-strength bolts need to be screwed, ultra-high performance concrete needs to be poured and a small amount of welding work needs to be carried out in site construction, so that the site workload can be obviously reduced, and the construction quality is ensured; when damage appears in partial structure, the change is all dismantled easily to profiled sheet and apron, the utility model discloses an assembly type light gauge steel composite beam bridge structure effectively reduces the maintenance cost in the full life cycle, and the sustainability is better.
Drawings
Fig. 1 is a schematic structural view of the assembled light steel plate composite beam bridge structure of the present invention;
fig. 2 is a schematic structural view of the i-shaped main beam of the present invention;
fig. 3 is a schematic structural view of the cover plate of the present invention;
fig. 4 is a schematic structural view of the diaphragm of the present invention;
FIG. 5 is a schematic structural view of the profiled steel sheet and the U-shaped stiffening ribs according to the present invention;
fig. 6 is a schematic structural view of the cross beam of the present invention;
figure 7 is the utility model discloses a I shape girder outside profiled sheet sketch map.
In the figure: 1. an I-shaped main beam; 2. concrete; 3. a cover plate; 4. a diaphragm plate; a U-shaped slot; 42. a diaphragm plate lower flange; 5. profiled steel sheets; 6, U-shaped stiffening ribs; 7. a bolt; 8. a cross member.
Detailed Description
In order to make the objects and advantages of the present invention more apparent, the present invention will be described in detail with reference to the following embodiments. It is to be understood that the following text is only intended to describe one or several particular embodiments of the invention, and does not strictly limit the scope of the claims specifically claimed.
The technical scheme of the utility model is as shown in figures 1-6, an assembled light steel plate composite beam bridge structure comprises an I-shaped girder 1, a crossbeam 8, a profiled steel sheet 5, a diaphragm plate 4, a cover plate 3 and concrete 2, wherein the crossbeam 8 is transversely arranged between the two I-shaped girders 1 which are arranged in parallel, the profiled steel sheet 5 is arranged above the crossbeam 8, two sides of the profiled steel sheet 5 are fixed on the upper flange of the I-shaped girder 1 through bolts, the cover plate 3 is arranged above the profiled steel sheet 5 through bolts 7, the cast-in-place concrete 2 is arranged in a tubular structure formed between the profiled steel sheet 5, the upper flange of the I-shaped girder 1 and the cover plate 3, a U-shaped stiffening rib 6 is arranged below the profiled steel sheet 5 between the I-shaped girders 1, the diaphragm plate 4 is arranged below the U-shaped stiffening rib 6, a U-shaped groove 41 matched with the U-shaped stiffening rib 6 is arranged at the position of the diaphragm plate 4 and the U-shaped stiffening rib, the diaphragm plate 4 and the profiled steel sheet 5 are connected by fillet weld, the penetration rate is more than 80%, and the relevant regulations of the acceptance and acceptance of construction quality of steel structure engineering (GB 50205-2001) are met; a horizontally arranged diaphragm lower flange 42 is arranged below the diaphragm 4, a bolt hole is arranged on the diaphragm lower flange 42, and the diaphragm lower flange 42 is fixed on the upper flange of the cross beam 8 through a high-strength bolt 7; the structural size of the diaphragm plate meets the steel structure stability requirement.
As shown in fig. 5, the profiled steel sheet 5 adopts different bending types between the i-shaped main beams 1 and at the outer sides of the i-shaped main beams 1 respectively, the wave-fold angle at the outer sides of the i-shaped main beams 1 is 30-60 degrees, and smooth transition is ensured; the two sides of the profiled steel sheet 5 are also connected with the bending plates shown in fig. 7, the bending plates, the profiled steel sheet and the cover plate form a complete tubular structure, the formed tubular structure is used as a template for casting the ultrahigh-performance concrete in situ, then the ultrahigh-performance concrete is poured, the ultrahigh-performance concrete is cast in situ integrally and is compacted through vibration, the composite beam bridge can be poured in sections when the span of the composite beam bridge is large, and the corresponding pouring sequence is determined according to the longitudinal section length and the installation sequence of the profiled steel sheet during the sectional pouring.
As shown in FIG. 4, the U-shaped stiffening ribs 6 are arranged along the profiled steel sheets 5 between the I-shaped main beams 1 at equal intervals in the transverse direction, and the interval distance is 0.6-0.8 m. The cross slab 4 and the crossbeam 8 are all along setting up along bridge direction equidistance interval, and the spacing distance is 2.5~4.0m, and the cross slab 4 and the crossbeam 8 adopt high-strength bolt 7 to connect.
Specifically, all be provided with the bolt hole on I shape girder 1, profiled steel sheet 5 and the apron 3, the bolt hole is horizontal the bridge to symmetrical arrangement, along the bridge to interval range 2.0m ~4.0 m/group, every group is along the bridge to setting up 2 rows of high-strength bolt.
As shown in FIG. 3, the cover plate 3 is provided with bolt holes, the cover plate 3 is arranged in sections along the bridge direction, the length of each section is 6.0-10.0 m, and the adjacent longitudinal cover plates 3 are connected through welding seams.
The utility model discloses a light steel sheet composite beam bridge structure of assembled, when the construction, the cross slab should carry out welding construction at the mill with profiled sheet, and I-shaped girder, crossbeam and cross slab all assemble on transporting to the on-the-spot bed-jig of bridge site after mill's processing is accomplished, and on-the-spot high-strength bolt is executed and is twisted the back and begin to pour ultra high performance concrete. After the bridge is formed, the cast-in-place ultrahigh-performance concrete is used as the upper flange of the I-shaped main beam to jointly participate in structural stress, the disadvantage that the traditional I-shaped composite beam is poor in torsion resistance is obviously improved, and the characteristics that a common concrete bridge deck is large in self weight and limited in spanning capacity are overcome.
The above detailed description of the embodiments of the present invention has been provided with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and those skilled in the art can make several equivalent transformations and substitutions without departing from the principles of the present invention after learning the contents of the present invention.
Claims (7)
1. The utility model provides an assembled light steel sheet composite beam bridge structure which characterized in that: the transverse beam is transversely arranged between two I-shaped main beams which are arranged in parallel, the profiling steel plate is arranged above the transverse beam, the two sides of the profiling steel plate are fixed on the upper flange of the I-shaped main beam through bolts, the cover plate is arranged above the profiling steel plate through bolts, cast-in-place concrete is arranged in a tubular structure formed among the upper flanges of the profiling steel plate and the I-shaped main beam and the cover plate, a U-shaped stiffening rib is arranged below the profiling steel plate between the I-shaped main beams, the transverse plate is arranged below the U-shaped stiffening rib, a U-shaped groove matched with the U-shaped stiffening rib in shape is formed in the position where the transverse plate is connected with the U-shaped stiffening rib, and the lower part of the transverse plate is fixed on the upper flange of the transverse beam through the lower flange of the transverse plate.
2. The fabricated light steel plate composite beam bridge structure according to claim 1, wherein: the folding angle of the two sides of the profiled steel sheet is 30-60 degrees.
3. The fabricated light steel plate composite beam bridge structure according to claim 1, wherein: u type stiffening rib sets up along the horizontal equidistance interval of profiled sheet between the I shape girder, and the interval distance is 0.6~0.8 m.
4. The fabricated light steel plate composite beam bridge structure according to claim 1, wherein: the diaphragm plate and the crossbeam are arranged at equal intervals along the bridge direction, and the interval distance is 2.5-4.0 m.
5. The fabricated light steel plate composite beam bridge structure according to claim 1, wherein: all be provided with the bolt hole on I shape girder, profiled steel sheet and the apron, the bolt hole sets up along horizontal bridge to symmetry, along following the bridge to the interval be 2.0~4.0 m/group.
6. The fabricated light steel plate composite beam bridge structure according to claim 1, wherein: the cover plates are arranged in sections along the bridge direction, the length of each section is 6.0-10.0 m, and the adjacent longitudinal cover plates are connected through welding seams.
7. The fabricated light steel plate composite beam bridge structure according to claim 1, wherein: the concrete is ultra-high performance concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020651745.5U CN212426678U (en) | 2020-04-26 | 2020-04-26 | Assembled light steel sheet composite beam bridge structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020651745.5U CN212426678U (en) | 2020-04-26 | 2020-04-26 | Assembled light steel sheet composite beam bridge structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212426678U true CN212426678U (en) | 2021-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020651745.5U Expired - Fee Related CN212426678U (en) | 2020-04-26 | 2020-04-26 | Assembled light steel sheet composite beam bridge structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212426678U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115182228A (en) * | 2022-07-22 | 2022-10-14 | 中铁二院工程集团有限责任公司 | Steel-concrete composite beam structure |
-
2020
- 2020-04-26 CN CN202020651745.5U patent/CN212426678U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115182228A (en) * | 2022-07-22 | 2022-10-14 | 中铁二院工程集团有限责任公司 | Steel-concrete composite beam structure |
| CN115182228B (en) * | 2022-07-22 | 2024-05-14 | 中铁二院工程集团有限责任公司 | Steel-concrete composite beam structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220121 Address after: 472000 fourth floor, Yellow River Highway Bridge Management Office, Sanmenxia City, Henan Province Patentee after: HENAN YUJIN EXPRESSWAY CONSTRUCTION Co.,Ltd. Address before: 450046 No.9 Zeyu street, Zhengdong New District, Zhengzhou City, Henan Province Patentee before: HENAN PROVINCIAL COMMUNICATIONS PLANNING & DESIGN INSTITUTE Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210129 |