CN212103670U - Be applied to bridge floor semi-rigid continuous structure of simply supported steel and concrete composite beam bridge - Google Patents
Be applied to bridge floor semi-rigid continuous structure of simply supported steel and concrete composite beam bridge Download PDFInfo
- Publication number
- CN212103670U CN212103670U CN202020128813.XU CN202020128813U CN212103670U CN 212103670 U CN212103670 U CN 212103670U CN 202020128813 U CN202020128813 U CN 202020128813U CN 212103670 U CN212103670 U CN 212103670U
- Authority
- CN
- China
- Prior art keywords
- bridge
- concrete
- steel
- concrete composite
- bridge deck
- 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
Images
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model relates to a bridge floor semi-rigid continuous structure applied to a simply supported steel-concrete composite beam bridge, belonging to the technical field of bridge engineering; the reinforced concrete composite beam comprises a capping beam at the bottom, reinforced concrete composite beams arranged above two sides of the capping beam, an ultrahigh-performance concrete connecting plate arranged between the reinforced concrete composite beams, an asphalt layer arranged between the ultrahigh-performance concrete connecting plate and the upper end surface of the capping beam, and supports arranged at two sides of the capping beam and used for supporting the reinforced concrete composite beams, wherein the reinforced concrete composite beams comprise concrete bridge decks and steel beams fixedly connected below the concrete bridge decks, and the concrete bridge decks are provided with reserved notches for pouring and forming the ultrahigh-performance concrete connecting plates; the utility model provides a be applied to bridge floor semi-rigid continuous structure of simple supported steel-concrete composite beam bridge, construction shaping is convenient, anti waterproof ability reinforce that splits, tolerance are good, maintenance is convenient, safe and reliable.
Description
Technical Field
The utility model relates to a be applied to bridge floor semi-rigid continuous structure of simply supported steel-concrete composite beam bridge belongs to bridge engineering technical field.
Background
The medium and small span simply supported girder bridge and the continuous girder bridge are the most widely applied structural forms in the bridge engineering field; the simply-supported system has the advantages of rapid construction of prefabricated assembly, but the number of expansion joints between concrete bridge decks is large, the driving comfort is influenced, and the workload of maintenance during operation is large; the number of expansion joints of the continuous beam bridge is small, but in the conversion construction process of a simply-supported continuous system, the problems of complex procedures, high construction cost, long construction time, difficult quality control and the like exist. In addition, the continuous structure has overlarge secondary internal force under the action of concrete shrinkage creep, foundation settlement, temperature change and the like, various cracking diseases are easily generated, the durability of the bridge is influenced, and the investment of later maintenance is increased;
in the traditional steel-concrete composite beam bridge, because the concrete bridge deck has higher rigidity, the problems of concrete cracking, pavement layer damage and the like easily occur on the continuous part of the bridge deck, and the driving safety and the service life of the bridge are influenced; moreover, the adoption of the rigid bridge deck continuous structure also easily causes the support to generate negative reaction force, which is unfavorable for the stress of the structure.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome not enough among the prior art, provide a be applied to the half rigid continuous structure of bridge floor of simply supported steel and concrete composite beam bridge, construction shaping is convenient, anti ability reinforce, patience is good, maintenance is convenient, safe and reliable.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a be applied to bridge floor semi-rigid continuous structure of simple supported steel-concrete composite beam bridge, its bent cap that includes the bottom, set up the steel-concrete composite beam in bent cap both sides top, set up the ultra-high performance concrete connecting plate between the steel-concrete composite beam, set up the pitch layer between ultra-high performance concrete connecting plate and bent cap up end and set up the support that is used for supporting the steel-concrete composite beam in bent cap both sides, the steel-concrete composite beam includes concrete decking and the girder steel of fixed connection below the concrete decking, be equipped with the reservation notch that is used for ultra-high performance concrete connecting plate to pour the shaping on the concrete decking.
Further, the upper surface of the asphalt layer is flush with the bottom surface of the reserved notch of the connecting plate.
Further, the upper surface of the concrete bridge deck is flush with the upper surface of the ultra-high performance concrete connecting plate.
Further, the girder steel includes the vertical bridge that mutually perpendicular cross set up to girder steel and cross slab, vertical bridge extends along the bridge direction of travel to the girder steel.
Further, the vertical cross axis of the longitudinal bridge steel beam and the transverse partition plate coincides with the axis of the support.
Further, the thickness of the concrete bridge deck plate is 250mm, the pouring width of the ultra-high performance concrete connecting plate is 1200mm, and the thickness is 100 mm.
Compared with the prior art, the utility model discloses the beneficial effect who reaches:
1. the concrete bridge deck plates are connected by embedding the ultra-high performance concrete connecting plates between the concrete bridge deck plates to form a semi-rigid structure, so that the rigidity of the bridge deck plates at the position is reduced, the bearing capacity of the vehicle and tensile deformation caused by temperature is improved, cracking of continuous parts of a bridge deck can be prevented, and the whole simply-supported steel-concrete composite beam is ensured to have enough support reaction force storage and cannot be emptied;
2. the ultra-high performance concrete connecting plate and the asphalt layer in the technical scheme enable seamless connection between concrete bridge deck boards, ensure the smoothness and continuity of a bridge deck and improve the driving comfort;
3. the steel-concrete composite beam of the technical scheme combines the characteristics of light steel weight, good tension performance and low self weight and the characteristics of low price, good compression performance and low manufacturing cost of concrete, so that the construction and installation are more convenient, the manufacturing cost is lower, the cracking risk is reduced, and the structural stability is ensured.
Drawings
FIG. 1 is a schematic structural diagram of a semi-rigid continuous bridge deck structure applied to a simply supported steel-concrete composite beam bridge according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional structure diagram of a bridge deck semi-rigid continuous structure applied to a simply supported steel-concrete composite beam bridge provided by the embodiment of the utility model.
Description of reference numerals: the concrete beam comprises 1-capping beams, 2-steel-concrete composite beams, 3-ultrahigh-performance concrete connecting plates, 4-asphalt layers, 5-supports, 6-concrete bridge decks, 7-steel beams, 8-reserved notches, 9-longitudinal bridge steel beams and 10-transverse clapboards.
Detailed Description
The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The bridge deck semi-rigid continuous structure applied to the simply supported steel-concrete composite beam bridge comprises a capping beam 1 at the bottom, steel-concrete composite beams 2 arranged above two sides of the capping beam, ultra-high performance concrete connecting plates 3 arranged between the steel-concrete composite beams, an asphalt layer 4 arranged between the ultra-high performance concrete connecting plates and the upper end surface of the capping beam, and supports 5 arranged at two sides of the capping beam and used for supporting the steel-concrete composite beams, wherein each steel-concrete composite beam comprises a concrete bridge deck 6 and steel beams 7 fixedly connected below the concrete bridge deck, and the concrete bridge deck is provided with reserved notches 8 for pouring and forming the ultra-high performance concrete connecting plates;
the bent cap is of an inverted T-shaped structure, the concrete bridge deck above the steel-concrete composite beam and the steel beam below the steel-concrete composite beam are fixedly arranged together to be integrally formed, the concrete bridge deck is uniformly hoisted during construction, the concrete bridge deck is formed by general concrete pouring, the ultra-high performance concrete connecting plate is formed by in-situ pouring of ultra-high performance concrete, and the ultra-high performance concrete material has the characteristics of high tensile strength, good durability, good mechanical property and the like;
the thickness of the ultra-high performance concrete connecting plate after pouring and forming is smaller than that of common concrete bridge deck plates on two sides, and the ultra-high performance concrete connecting plate is embedded in the reserved notch and used for connecting the concrete bridge deck plates on two sides to form a semi-rigid continuous structure, so that the rigidity of the position is reduced, the bearing capacity of the vehicle and the tensile deformation caused by temperature is improved, the cracking of the continuous part of the bridge deck can be prevented, and the whole simply-supported steel-concrete composite beam is ensured to have enough supporting reaction force storage and cannot be emptied;
the steel-concrete composite beam is arranged on two sides of the inverted-T-shaped cover beam through the support frame, the concrete bridge deck plates on two sides of the cover beam are provided with one layer of ultra-high-performance concrete connecting plate which is formed by cast-in-place at the top area of the cover beam and used for connecting the concrete bridge deck plates, and an asphalt layer is further arranged below the ultra-high-performance concrete connecting plate for water-resisting leveling, so that the ultra-high-performance concrete connecting plate is in close contact with and attached to the top of the cover beam, the ultra-high-performance concrete connecting plate is arranged to enable expansion joints between the original concrete bridge deck plates to be removed, the whole bridge deck forms a semi-rigid continuous structure, the construction forming is simpler and faster, the durability is better, and the whole bridge deck flatness continuity is better, and the traveling is more.
Furthermore, the upper surface of the asphalt layer is flush with the bottom surface of the reserved notch of the connecting plate;
guarantee the pitch layer can with the contact of closely laminating of ultra high performance concrete connecting plate, the pitch layer plays the effect of water proof and flattening, and structural durability is better, has the slidable function simultaneously, can fully release the deformation of steel-concrete composite beam, avoids deforming and transmits to the bottom bent cap on, ensures the stability of the semi-rigid connection of whole structure.
The upper surface of the concrete bridge deck is flush with the upper surface of the ultra-high performance concrete connecting plate;
guarantee the roughness and the continuity of whole bridge floor, reduce jolting of driving, ensure driving travelling comfort.
In one embodiment, the steel beam comprises a longitudinal bridge steel beam 9 and a diaphragm plate 10 which are arranged perpendicularly to each other in a crossed manner, and the longitudinal bridge steel beam extends along the bridge driving direction.
The longitudinal bridge generally adopts the I-steel to the girder steel, extends along the bridge floor direction of traveling, and the cross slab is connected between longitudinal bridge to the girder steel, and cross arrangement makes whole girder steel structure more stable, and intensity is higher.
The vertical cross axis of the longitudinal bridge steel beam and the transverse partition plate coincides with the axis of the support.
The supporting center of the whole steel beam is positioned at the center of the support, and the structural strength and the supporting stability are improved.
In one embodiment, the thickness of the concrete bridge deck plate is 250mm, the pouring width of the ultra-high performance concrete connecting plate is 1200mm, and the thickness is 100 mm.
The thickness of the ultra-high performance concrete connecting plate is smaller than the thickness of the concrete bridge deck plate, the ultra-high performance concrete connecting plate is embedded between the concrete bridge deck plate and is connected with the concrete bridge deck plate to form a semi-rigid structure, the ultra-high performance concrete connecting plate is cast and formed in the reserved groove, and the installation size of the reserved groove is based on the size of the ultra-high performance concrete connecting plate cast and formed.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.
Claims (6)
1. The utility model provides a be applied to bridge floor semi-rigid continuous structure of simply supported steel and concrete composite beam bridge which characterized in that: the concrete-reinforced composite beam comprises a capping beam (1) at the bottom, steel-concrete composite beams (2) arranged above two sides of the capping beam, ultrahigh-performance concrete connecting plates (3) arranged between the steel-concrete composite beams, an asphalt layer (4) arranged between the ultrahigh-performance concrete connecting plates and the upper end surfaces of the capping beams, and supports (5) arranged on two sides of the capping beam and used for supporting the steel-concrete composite beams, wherein each steel-concrete composite beam comprises a concrete bridge deck (6) and steel beams (7) fixedly connected below the concrete bridge deck, and reserved notches (8) for pouring and forming the ultrahigh-performance concrete connecting plates are formed in the concrete bridge deck.
2. The bridge deck semi-rigid continuous structure applied to the simply supported steel-concrete composite girder bridge according to claim 1, wherein: the upper surface of the asphalt layer is flush with the bottom surface of the reserved notch of the connecting plate.
3. The bridge deck semi-rigid continuous structure applied to the simply supported steel-concrete composite girder bridge according to claim 2, wherein: the upper surface of the concrete bridge deck is flush with the upper surface of the ultra-high performance concrete connecting plate.
4. The bridge deck semi-rigid continuous structure applied to the simply supported steel-concrete composite girder bridge according to claim 1, wherein: the girder steel includes vertical bridge that mutually perpendicular cross set up to girder steel (9) and cross slab (10), vertical bridge extends along the bridge direction of travel to the girder steel.
5. The bridge deck semi-rigid continuous structure applied to the simply supported steel-concrete composite girder bridge according to claim 4, wherein: the vertical cross axis of the longitudinal bridge steel beam and the transverse partition plate coincides with the axis of the support.
6. The bridge deck semi-rigid continuous structure applied to the simply supported steel-concrete composite girder bridge according to claim 1, wherein: the thickness of the concrete bridge deck plate is 250mm, the pouring width of the ultra-high performance concrete connecting plate is 1200mm, and the thickness is 100 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020128813.XU CN212103670U (en) | 2020-01-20 | 2020-01-20 | Be applied to bridge floor semi-rigid continuous structure of simply supported steel and concrete composite beam bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020128813.XU CN212103670U (en) | 2020-01-20 | 2020-01-20 | Be applied to bridge floor semi-rigid continuous structure of simply supported steel and concrete composite beam bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212103670U true CN212103670U (en) | 2020-12-08 |
Family
ID=73626450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020128813.XU Active CN212103670U (en) | 2020-01-20 | 2020-01-20 | Be applied to bridge floor semi-rigid continuous structure of simply supported steel and concrete composite beam bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212103670U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112746554A (en) * | 2021-02-08 | 2021-05-04 | 清华大学 | Combined capping beam and bridge with same |
-
2020
- 2020-01-20 CN CN202020128813.XU patent/CN212103670U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112746554A (en) * | 2021-02-08 | 2021-05-04 | 清华大学 | Combined capping beam and bridge with same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108951419B (en) | Anti-cracking structure of bridge deck continuous part of simply supported combined beam bridge support | |
| CN204662235U (en) | A kind of steel plate combination T beam bridge | |
| CN101550674A (en) | Bridge of steel truss-concrete and construction method thereof | |
| CN109024219B (en) | Prefabricated ultrahigh-performance concrete-common concrete combined beam bridge structure and construction method | |
| CN212103670U (en) | Be applied to bridge floor semi-rigid continuous structure of simply supported steel and concrete composite beam bridge | |
| CN113047094A (en) | Guide rail type rubber wheel system steel-concrete combined track beam structure and construction method thereof | |
| CN107604804B (en) | Multi-tower cable-stayed bridge with common-rail and laminated layers | |
| CN107988924B (en) | Steel-concrete composite girder bridge system conversion system and conversion method based on old bridge reconstruction | |
| CN111778835A (en) | Combined beam of steel, common concrete and ultrahigh-performance concrete and construction method | |
| CN201381470Y (en) | Assembled variable cross-section composite continuous bridge | |
| CN214459554U (en) | Combined beam | |
| CN111335530A (en) | Variable cross-section one-way hollow prefabricated slab for block building laminated slab | |
| CN212582397U (en) | Combined beam of steel, common concrete and ultrahigh-performance concrete | |
| CN112144325B (en) | Connection structure of suspension type single track and public road bridge roof beam | |
| CN213925863U (en) | Railway bridge integral steel bridge deck slab ballast groove | |
| CN112982189A (en) | Steel plate girder wide hollow slab girder structure | |
| CN113073541A (en) | Combined capping beam suitable for continuous bridge deck construction, bridge and construction process | |
| CN109505269A (en) | Load reinforcement means is significantly mentioned for existing steel plate combination continuous bridge | |
| CN110629670A (en) | Upper and lower steel plate sandwich type steel-concrete combined bridge deck structure and construction method | |
| CN217710298U (en) | Steel shell concrete bent cap | |
| CN218479024U (en) | Continuous small box girder structure and prefabricated assembled concrete bridge | |
| CN215405529U (en) | Steel-ultrahigh-performance concrete pre-bent combined beam bridge | |
| CN216378942U (en) | Board-like track structure of spacing prefabricated frame in board | |
| CN216378944U (en) | Prefabricated assembled plate type track structure | |
| CN220724832U (en) | Full support assembled bridge expansion device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |