CN210916966U - Corrugated steel UHPC constant-section continuous beam bridge - Google Patents
Corrugated steel UHPC constant-section continuous beam bridge Download PDFInfo
- Publication number
- CN210916966U CN210916966U CN201921453483.5U CN201921453483U CN210916966U CN 210916966 U CN210916966 U CN 210916966U CN 201921453483 U CN201921453483 U CN 201921453483U CN 210916966 U CN210916966 U CN 210916966U
- Authority
- CN
- China
- Prior art keywords
- bottom plate
- corrugated steel
- uhpc
- wave form
- construction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 86
- 239000010959 steel Substances 0.000 title claims abstract description 86
- 239000011374 ultra-high-performance concrete Substances 0.000 title claims abstract description 43
- 239000002002 slurry Substances 0.000 claims description 6
- 238000010276 construction Methods 0.000 abstract description 39
- 239000000463 material Substances 0.000 abstract description 8
- 239000002131 composite material Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000000338 in vitro Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000005056 compaction Methods 0.000 description 4
- 239000004567 concrete Substances 0.000 description 4
- 238000001727 in vivo Methods 0.000 description 4
- 238000005336 cracking Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Images
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses a wave form steel UHPC constant cross-section continuous beam bridge, concretely relates to bridge construction technical field, including bottom plate and wave form steel web, the even slope in bottom plate top both sides is equipped with a plurality of wave form steel webs, the top of wave form steel web is equipped with the roof, and wave form steel web and bottom plate and roof constitution box structure, and bottom plate and roof all adopt ultra high performance concrete material UHPC board. The utility model discloses a set up the wave form steel web, bottom plate and roof, make steel wave web roof beam and ultra high performance concrete roof and bottom make up into whole common atress, it is big to have a bearing capacity, rigidity is big, roof beam body cross-sectional dimension is little and construction advantage such as swiftly convenient, when pushing away the construction, it also has the increase to push away economic span, utilize the wave form steel web to make the nose girder construction with reduction engineering cost, make the construction more convenient compare with prior art and solved the not very just inconvenient problem of construction of traditional combination box girder shear capacity greatly.
Description
Technical Field
The utility model relates to a bridge construction technical field, more specifically say, the utility model relates to a wave form steel UHPC constant cross-section continuous beam bridge.
Background
Since the 90 s of the 20 th century, the prestressed concrete box girder bridge has the diseases of 'midspan continuous downwarping' and 'beam body cracking' which become hidden dangers of bridge operation safety, and the corrugated steel web PC box girder bridge is a novel bridge which appears in the 80 s of the 20 th century and is characterized in that: the high-strength corrugated steel plate is used for replacing a low-strength concrete web of the PC box girder bridge, and the self weight of the box girder is reduced by 20-30% under the same span; the accordion effect of the corrugated steel plate has no resistance to axial force, so that the longitudinal prestress efficiency is improved; the external prestress technology is adopted, so that the welding of stiffening ribs of a web plate is omitted, the connection structure is simplified, and the construction is simplified. The appearance of the corrugated steel web PC combined box girder bridge effectively solves two problems of web cracking and midspan continuous downwarping of the traditional PC continuous girder bridge, and shows wide application prospect.
However, in actual use, the existing corrugated steel web combined box girder has insufficient shear connection and weak capacity of a constant-section connecting girder bridge, so that construction on a construction site is inconvenient, applicability and reliability are low, and the use requirement of bridge passing cannot be well met.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the embodiment of the utility model provides a corrugated steel UHPC constant section continuous beam bridge, the corrugated steel web plate can be used as the pushing guide beam, so that certain construction cost is saved for the bridge pushing construction technology, meanwhile, the dead weight is light, the spanning capability can be increased, the corresponding pushing economic span can be increased, the structure combines the structural advantages of the corrugated steel web plate PC composite beam and the unique advantages of high strength and high toughness of the UHPC material, so that the steel corrugated plate beam, the ultra-high performance concrete top plate and the ultra-high performance concrete bottom plate are combined into a whole to bear force together, and the corrugated steel web plate PC composite beam has the advantages of large bearing capacity, large rigidity, small beam body section size, quick and convenient construction and the like, and during pushing construction, the incremental launching economic span is increased, the construction cost is reduced by using the corrugated steel web as the guide beam, the construction is more convenient, and the problems in the background technology are solved.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a wave form steel UHPC constant cross-section continuous beam bridge, includes bottom plate and wave form steel web, the even slope in bottom plate top both sides is equipped with a plurality of wave form steel webs, the top of wave form steel web is equipped with the roof, and wave form steel web and bottom plate and roof constitution box structure, and bottom plate and roof all adopt ultra high performance concrete material UHPC board, the bottom plate bottom is equipped with a plurality of piers.
In a preferred embodiment, the span between the bottom and the pier is a medium span.
In a preferred embodiment, the bottom plate and the top part are internally provided with in-vivo cables, and the bottom plate and the top part are externally fixedly connected with a plurality of in-vitro cables.
In a preferred embodiment, the top plate and the bottom plate are connected with the corrugated steel webs through high-strength bolts, and the corrugated steel webs of adjacent sections are connected through high-strength bolts or welding.
In a preferred embodiment, UHPC slurry is self-densely poured between the top and bottom of the corrugated steel web and the top and bottom plates.
The utility model discloses a technological effect and advantage:
1. the utility model can utilize the corrugated steel web plate as the pushing guide beam by arranging the corrugated steel web plate, the bottom plate and the top plate, saves certain construction cost for the bridge pushing construction technology, meanwhile, the dead weight is light, the spanning capability can be increased, the corresponding pushing economic span can be increased, the structure combines the structural advantages of the corrugated steel web plate PC composite beam and the unique advantages of high strength and high toughness of the UHPC material, so that the steel corrugated plate beam, the ultra-high performance concrete top plate and the ultra-high performance concrete bottom plate are combined into a whole to bear force together, and the corrugated steel web plate PC composite beam has the advantages of large bearing capacity, large rigidity, small beam body section size, quick and convenient construction and the like, and during pushing construction, the incremental launching economic span is increased, and the construction cost is reduced by using the corrugated steel web as the guide beam, so that the construction is more convenient, and compared with the prior art, the problems of low shearing resistance and inconvenient construction of the traditional combined box girder are solved;
2. the utility model discloses a set up wave form steel web, bottom plate and roof, fine and close UHPC slurry easily pours in the less wave form steel web connecting piece department in space, can realize roof, bottom plate and wave form steel web's self-compaction and pour, can reduce shear connector and roof and the fore-and-aft relative slip of bottom plate, improved the combining ability with wave form steel web, strengthened bridge overall structure intensity.
Drawings
FIG. 1 is a three-dimensional drawing of the corrugated steel UHPC constant-section continuous beam bridge of the utility model
Fig. 2 is a three-dimensional view of the main beam.
Fig. 3 is a top view of the main beam.
Fig. 4 is a front view of the main beam.
The reference signs are: 1 bottom plate, 2 corrugated steel web, 3 roof, 4 piers.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a corrugated steel UHPC constant cross-section continuous girder bridge as shown in figures 1-4, which comprises a bottom plate 1 and corrugated steel webs 2, wherein a plurality of corrugated steel webs 2 are uniformly arranged on two sides of the top of the bottom plate 1 in an inclined manner, a top plate 3 is arranged on the top of each corrugated steel web 2, the bottom plate 1 and the top plate 3 form a box-type structure, the bottom plate 1 and the top plate 3 are both made of ultra-high performance concrete material UHPC plates, and a plurality of piers 4 are arranged at the bottom of the bottom plate 1;
the span between the bottom and the bridge pier 4 is a medium span, and the pushing method is adopted for construction, so that the pushing span is not suitable for being too large, the difference between the internal force of a main beam construction stage and the internal force of a main beam operation stage is not large, otherwise the main beam construction stage and the internal force of the main beam operation stage are not economical, the number of pushing spans is not small, the number of the pushing spans is small, and the pushing method is not economical, so that the pushing method is suitable for a multi-span bridge with the medium span;
in-vivo cables are arranged in the bottom plate 1 and the top part, and a plurality of in-vitro cables are fixedly connected outside the bottom plate 1 and the top part, so that in view of the limited arrangement space of the prestressed cables of the top plate 3 and the bottom plate 1, the in-vitro cables are applied to overcome the defect of the in-vivo cables, and in-vitro cables or in-vivo and in-vitro cable knots are adopted in a matching manner;
the selection of the waveform size of the corrugated steel web 2 needs to consider factors such as processing, transportation, installation and the like, and factors such as the length of a segment, the thickness change of the web, the connection between segments and the like during segment construction;
the top plate 3 and the bottom plate 1 are connected with the corrugated steel web 2 through high-strength bolts, and the corrugated steel webs 2 of the adjacent sections are connected through the high-strength bolts or welded, so that the connection is quick and convenient, and the use requirement is met.
The implementation mode is specifically as follows: and manufacturing a prefabricated platform on a guide way or a guide bridge of the bridge abutment rear axle line. The method comprises the steps of arranging a steel web lifting installation platform movable gantry crane behind a pedestal of a precast yard, conveniently adjusting and installing a corrugated steel web 2, installing a corrugated steel web 2 guide beam, pouring a first section of beam, tensioning prestress, pushing the top of the first section of beam out of a precast platform, pushing each section of beam according to the subsection mode of the main beam, stopping pushing the main beam when the front end of the guide beam pushes the center of the bridge abutment, then erecting a full-space support below the guide beam, using the corrugated steel web 2 and other parts to erect a template to cast the guide beam in situ, removing the full-space support and other temporary facilities after concrete reaches a certain strength, tensioning a later-period beam, finally laying a full bridge for a second period, putting into operation, replacing common concrete of a traditional top plate 3 and a traditional bottom plate 1 by ultrahigh-performance concrete for the corrugated steel web 2 and UHPC materials, reducing the thickness of the top plate 3 and the bottom plate 1, and further reducing the dead weight of a box beam, the span of the combined beam is lifted, when the pushing construction is adopted, the corrugated steel web 2 can be used as a pushing guide beam, certain construction cost is saved for the bridge pushing construction technology, meanwhile, the dead weight is light, the spanning capability can be increased, the corresponding pushing economic span can be increased, the structure combines the structural advantages of the corrugated steel web 2PC composite beam and the unique advantages of high strength and high toughness of the UHPC material, so that the steel corrugated web beam, the ultra-high performance concrete top plate 3 and the bottom are combined into a whole to bear force together, and the corrugated steel web composite beam has the advantages of large bearing capacity, large rigidity, small beam body section size, quick and convenient construction and the like, the pushing economic span is also increased, the construction cost is reduced by using the corrugated steel web 2 as a guide beam, the construction is greatly more convenient, this embodiment has specifically solved traditional combination box girder shear capacity and has not been very big and the inconvenient problem of construction.
The utility model provides a wave form steel UHPC constant cross-section continuous beam bridge as shown in fig. 1-3 still includes wave form steel web 2, self-compaction has pour the UHPC slurry between wave form steel web 2's top and bottom and roof 3 and the bottom plate 1.
The implementation mode is specifically as follows: the fine UHPC slurry is easy to pour at the connecting piece of the corrugated steel web 2 with a small space, the self-compaction pouring of the top plate 3, the bottom plate 1 and the corrugated steel web 2 can be realized, the longitudinal relative slippage of the shear connector, the top plate 3 and the bottom plate 1 can be reduced, the combining capacity with the corrugated steel web 2 is improved, and the integral structural strength of the bridge is enhanced.
The utility model discloses the theory of operation:
referring to the attached drawings 1-4 of the specification, the corrugated steel web 2 and UHPC material use ultra-high performance concrete to replace the common concrete of the traditional top plate 3 and bottom plate 1, reduce the thickness of the top plate 3 and bottom plate 1, thereby reducing the dead weight of the box girder, improving the span of the composite beam, using the corrugated steel web 2 as a pushing guide beam, saving certain construction cost for the bridge pushing construction technology, simultaneously having light dead weight, increasing the spanning capability, and increasing the corresponding pushing economic span, so that the steel corrugated steel web beam and the ultra-high performance concrete top plate 3 and the bottom are combined into a whole to bear force together, having the advantages of large bearing capacity, large rigidity, small beam body section size, fast and convenient construction, etc., during the pushing construction, the pushing economic span is also increased, using the corrugated steel web 2 as a guide beam to construct so as to reduce the engineering cost, greatly making the construction more convenient, the problems that the traditional combined box girder is not large in shearing resistance and inconvenient to construct are solved;
referring to the attached drawings 1-3 of the specification, the fine UHPC slurry is easy to pour at the corrugated steel web 2 connecting piece with a small space, the self-compaction pouring of the top plate 3, the bottom plate 1 and the corrugated steel web 2 can be realized, the longitudinal relative sliding of the shear connecting piece, the top plate 3 and the bottom plate 1 can be reduced, the combining capacity with the corrugated steel web 2 is improved, and the overall structural strength of the bridge is enhanced.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;
and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a wave form steel UHPC constant cross section continuous beam bridge, includes bottom plate (1) and wave form steel web (2), its characterized in that: the novel corrugated steel plate is characterized in that a plurality of corrugated steel webs (2) are uniformly arranged on two sides of the top of the bottom plate (1) in an inclined mode, a top plate (3) is arranged at the top of each corrugated steel web (2), the corrugated steel webs (2) form a box-type structure with the bottom plate (1) and the top plate (3), the bottom plate (1) and the top plate (3) are all made of ultra-high-performance concrete UHPC (ultra high performance concrete) plates, and a plurality of piers (4) are arranged at the bottom of the bottom plate (.
2. The corrugated steel UHPC constant-section continuous beam bridge as claimed in claim 1, wherein: the span between the bottom and the pier (4) is a medium span.
3. The corrugated steel UHPC constant-section continuous beam bridge as claimed in claim 1, wherein: the inner cables are arranged in the bottom plate (1) and the top, and the bottom plate (1) and the top are fixedly connected with a plurality of outer cables.
4. The corrugated steel UHPC constant-section continuous beam bridge as claimed in claim 1, wherein: the top plate (3) and the bottom plate (1) are connected with the corrugated steel web plates (2) through high-strength bolts, and the corrugated steel web plates (2) of adjacent sections are connected through the high-strength bolts or welded.
5. The corrugated steel UHPC constant-section continuous beam bridge as claimed in claim 1, wherein: UHPC slurry is poured between the top and the bottom of the corrugated steel web plate (2) and the top plate (3) and the bottom plate (1) in a self-compacting manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921453483.5U CN210916966U (en) | 2019-09-03 | 2019-09-03 | Corrugated steel UHPC constant-section continuous beam bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921453483.5U CN210916966U (en) | 2019-09-03 | 2019-09-03 | Corrugated steel UHPC constant-section continuous beam bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210916966U true CN210916966U (en) | 2020-07-03 |
Family
ID=71361941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921453483.5U Active CN210916966U (en) | 2019-09-03 | 2019-09-03 | Corrugated steel UHPC constant-section continuous beam bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210916966U (en) |
-
2019
- 2019-09-03 CN CN201921453483.5U patent/CN210916966U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108677685B (en) | Ultra-high-performance concrete-part steel beam combined bent cap and construction method thereof | |
| CN103924505B (en) | Use prefabricated steel-concrete combination T beam and the construction method of Wavelike steel webplate | |
| CN111778864B (en) | Bridge with longitudinal segmented prefabricated small box girder and construction method | |
| CN108824162A (en) | A kind of steel_concrete composite beam and its construction method using plain plate and corrugated sheet steel mixing web | |
| CN105484142A (en) | Assembling type sectional precast concrete hollow plate girder structure and manufacturing method thereof | |
| CN104762871A (en) | Prestressed concrete-steel tank beam bond beam continuous beam bridge | |
| CN103276662A (en) | Large-cantilever steel web spinal box beam segment and construction technology | |
| CN110700103B (en) | Construction method of continuous composite beam | |
| CN109440623A (en) | The interim splicing structure of concrete segment precast bridge | |
| CN108118610A (en) | A kind of ultra-high performance concrete and regular reinforcement concrete combination beam | |
| CN209493826U (en) | The interim splicing structure of concrete segment precast bridge | |
| CN102926504A (en) | Connecting steel construction member for steel and concrete overlapped beam combined part and construction method thereof | |
| CN113481826A (en) | Prefabricated assembled corrugated steel web combination box girder | |
| CN111254800A (en) | Combined beam suitable for urban bridge and construction method thereof | |
| CN103194963B (en) | Structure for continuous modification of existing simply-supported T-shaped beam bridge and construction method thereof | |
| CN108589512B (en) | Steel-concrete combined beam structure suitable for heavy-duty railway | |
| CN108316164B (en) | Structure for reinforcing old assembled hollow slab girder bridge by using new girder and construction method | |
| CN211079898U (en) | Novel joint structure of steel-concrete composite beam bridge | |
| CN210916966U (en) | Corrugated steel UHPC constant-section continuous beam bridge | |
| CN109577169B (en) | Assembled concrete box girder structure based on steel structure transverse coupling system and construction method | |
| CN109235235B (en) | Longitudinal connection method for main beams at continuous part of steel-concrete composite bridge deck | |
| CN105696453B (en) | A kind of steel-concrete combination beam | |
| CN103437496A (en) | Steel die and reinforced concrete integrated combination beam structure | |
| CN208133263U (en) | A kind of T-type beam that beam processed is high-efficient | |
| CN207958968U (en) | A kind of ultra-high performance concrete and regular reinforcement concrete combination beam |
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: 20210804 Address after: No. 155, Nanjin North Road, Lingling District, Yongzhou City, Hunan Province 425000 Patentee after: Hunan Expressway Construction Engineering Co.,Ltd. Address before: 410008 room 103, building 1, No. 75, Huaxia Road, Kaifu District, Changsha City, Hunan Province Patentee before: Tian Jun |