CN211689841U - Steel-concrete superposed prefabricated combined beam bridge structure - Google Patents
Steel-concrete superposed prefabricated combined beam bridge structure Download PDFInfo
- Publication number
- CN211689841U CN211689841U CN202020059641.5U CN202020059641U CN211689841U CN 211689841 U CN211689841 U CN 211689841U CN 202020059641 U CN202020059641 U CN 202020059641U CN 211689841 U CN211689841 U CN 211689841U
- Authority
- CN
- China
- Prior art keywords
- steel
- beam body
- layer
- concrete
- bridge structure
- 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 discloses a prefabricated combination beam bridge structure of steel-concrete coincide, left side span roof beam body, midspan roof beam body and right side span roof beam body all include the steel construction of pouring the layer and pouring the layer lower part, and the steel construction includes parallel arrangement's U shaped steel roof beam, fixedly connected with and a plurality of floor of side vertically between two sides of every U shaped steel roof beam, the fixed dowel that respectively is connected with a plurality of equipartitions in side top, equipartition fixedly connected with precast beam body longitudinal reinforcement and precast beam body transverse reinforcement on the dowel. The utility model is a reinforced concrete structure, and adopts a reinforced concrete bridge floor which has better durability and fatigue resistance than a steel bridge floor; from the construction perspective, the steel-concrete composite beam bridge combines factory prefabrication and cast-in-place, can better exert respective advantages of prefabrication and cast-in-place, is more economical and reasonable in manufacturing cost, solves the problem of insufficient span of the hollow slab beam bridge and the limitation of overhigh small box beam bridge compared with the existing hollow slab and small box beam bridge structures, and has wide application prospect in municipal bridges.
Description
Technical Field
The utility model relates to a beam bridge technical field, in particular to prefabricated combination beam bridge structure of steel reinforced concrete coincide.
Background
At present, a common steel-concrete composite beam is also called a composite structure bridge, and is a novel structural bridge formed by innovation and development on the basis of a steel structure bridge and a concrete structure bridge, and a highway large-span suspension bridge and a cable-stayed bridge basically adopt a steel structure or a steel-concrete composite structure, so that the composite structure has the advantages of light weight, convenience in transportation and erection, short construction period, high bearing capacity and the like. However, the pure steel bridge deck has complex structure, a large number of welding seams and high welding difficulty, and the requirements on the precision and the welding quality of the pure steel bridge deck in factory manufacturing and field assembly are very high.
The concrete hollow slab bridge is a bridge with a spanning structure formed by a plurality of hollow slab longitudinal beams along the bridge direction, and has the advantages of convenient concrete construction, low engineering cost, standardized centralized prefabrication production, small building height and the like, but the span application range of the concrete hollow slab bridge in the prior art is 6-20m, the span of a small box girder or a prestressed simple variable continuous box girder is 20-50m, the height of the cross section of a hollow slab is 50cm, and the height of the cross section of the small box girder is 120 cm.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to a steel-concrete laminated prefabricated composite girder bridge structure, which solves at least one of the above-mentioned problems of the prior art.
The utility model adopts the following technical scheme:
a steel-concrete superposed prefabricated combined beam bridge structure comprises a left side span beam body, a middle span beam body and a right side span beam body which are connected through pouring, wherein the left side span beam body, the middle span beam body and the right side span beam body respectively comprise a pouring layer and a steel structure at the lower part of the pouring layer, the steel structure comprises U-shaped steel beams which are arranged in parallel, a plurality of rib plates vertical to the side edges are fixedly connected between two side edges of each U-shaped steel beam, a plurality of uniformly distributed studs are fixedly connected to the tops of the side edges, and longitudinal steel bars of the prefabricated beam body and transverse steel bars of the prefabricated beam body are uniformly and fixedly connected to the studs; the two ends of each U-shaped steel beam are fixedly connected with T-shaped steel, a hole is formed in each T-shaped steel, transverse reinforcing steel bars of end cross beams penetrate through the holes, and the end parts of the U-shaped steel beams are formed into closed ends through pouring; and a beam unit diaphragm plate vertical to the U-shaped steel beams is fixedly connected between every two adjacent U-shaped steel beams.
Furthermore, the number of the rib plates between the two side edges of each U-shaped steel beam is five.
Furthermore, the number of the beam unit diaphragm plates between every two adjacent U-shaped steel beams is two.
Furthermore, the transverse steel bars of the end cross beam are arranged in an upper row and a lower row and are fixedly connected through binding.
Furthermore, a plurality of shear nails are arranged on the T-shaped steel.
Furthermore, when the left side span beam body, the middle span beam body and the right side span beam body are spliced, wet joints are formed between the left side span beam body and the middle span beam body and between the middle span beam body and the right side span beam body, and a plurality of wet joint reinforcing steel bars are arranged in the wet joints.
Furthermore, precast beam body horizontal reinforcing bar includes upper and lower two-layer, wet joint reinforcing bar ligature is between the upper and lower two-layer precast beam body horizontal reinforcing bar that corresponds, wet joint reinforcing bar is the loop configuration who uses with upper and lower two-layer precast beam body horizontal reinforcing bar cooperation.
Furthermore, the pouring layer comprises a middle high-strength concrete structure layer and an asphalt layer on the upper portion of the high-strength concrete structure layer.
Furthermore, the thickness of the high-strength concrete structure layer is 35mm-60mm, and the thickness of the asphalt layer is 6-40 mm.
Furthermore, a plurality of uniformly distributed connecting steel bars shaped like a Chinese character 'ji' are fixedly connected in the high-strength concrete structure layer, and the height of the connecting steel bars shaped like a Chinese character 'ji' is higher than that of the high-strength concrete structure layer.
The utility model has the advantages as follows:
1. the utility model is structurally a reinforced concrete structure, and the durability and fatigue resistance of the reinforced concrete bridge floor are better than those of a steel bridge floor; from the construction angle, the steel-concrete coincide beam bridge adopts mill's prefabrication and cast-in-place to combine together, more can exert prefabrication and cast-in-place advantage separately, and is also more economical and reasonable in the cost simultaneously, the utility model discloses solved the not enough problem of hollow slab beam bridge span and solved the too high restriction of little box girder beam again for having solved among current hollow slab and the box girder bridge structure promptly, have wide application prospect in municipal bridge.
2. High-strength concrete is poured on the upper portion of the U-shaped steel beam, the prefabricated beam body longitudinal steel bars, the prefabricated beam body transverse steel bars and the studs are adopted at the connecting portions, the shear-resisting bearing capacity of the connecting interface is greatly enhanced, the steel-concrete connecting interface shear force is reduced, therefore, the deformation of the shear connecting piece is reduced, the self weight is light, the tensile strength is excellent, the structural rigidity can be obviously improved, the concrete shrinkage creep influence is reduced, and the safety of the connecting interface is improved.
3. The utility model discloses a steel-concrete integrated configuration both can solve current concrete bridge because the problem that the span is big and the beam cross-section is high, can also alleviate the dead weight, can effectively solve the not enough problem of under-bridge headroom simultaneously in the town road.
4. The utility model discloses a steel construction can be prefabricated in the mill, and the steel construction of the left side span roof beam body, midspan roof beam body and the right side span roof beam body can regard as the support frame after on-the-spot hoist and mount are accomplished, erects template cast in situ concrete, and the construction is simple and convenient, the reduction of erection time greatly.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
FIG. 2 is an enlarged partial schematic view of FIG. 1;
FIG. 3 is an enlarged view of the U-shaped steel beam of FIG. 1;
FIG. 4 is a schematic illustration of the steel structure of FIG. 1;
fig. 5 is a partially enlarged schematic view of a vertical end surface in fig. 1.
Shown in the figure: 1-left side cross beam body, 2-middle cross beam body, 3-right side cross beam body, 4-T type steel, 5-end cross beam transverse steel bar, 6-zigzag connecting steel bar, 7-stud, 8-U type steel beam, 9-beam unit diaphragm, 10-rib plate, 11-high strength concrete structure layer, 12-asphalt layer, 13-shear nail, 14-wet joint steel bar, 15-precast beam body transverse steel bar, 16-precast beam body longitudinal steel bar and 17-closed end.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
The technical solution of the present invention is further explained with reference to fig. 1 to 5.
A steel-concrete superposed prefabricated combined beam bridge structure comprises a left side span beam body 1, a middle span beam body 2 and a right side span beam body 3 which are connected through pouring, wherein the left side span beam body 1, the middle span beam body 2 and the right side span beam body 3 respectively comprise a pouring layer and a steel structure at the lower part of the pouring layer, the steel structure comprises U-shaped steel beams 8 which are arranged in parallel, five rib plates 10 which are vertical to the side edges are fixedly connected between the two side edges of each U-shaped steel beam 8, the tops of the side edges are fixedly connected with a plurality of uniformly distributed studs 7 respectively, and longitudinal steel bars 16 of the prefabricated beam body and transverse steel bars 15 of the prefabricated beam body are uniformly and fixedly connected on the studs 7; two beam unit diaphragm plates 9 vertical to the U-shaped steel beams 8 are fixedly connected between every two adjacent U-shaped steel beams 8.
Both ends fixedly connected with T shaped steel 4 of every U shaped steel roof beam 8, seted up the hole on the T shaped steel 4, wear to be equipped with end crossbeam transverse reinforcement 5 in the hole, two rows of upper and lower arrangements of end crossbeam transverse reinforcement 5 through ligature fixed connection to T shaped steel 4 on, still be equipped with a plurality of shear force nails 13 on the T shaped steel 4.
When the left side strides roof beam body 1, midspan roof beam body 2 and the 3 concatenations of the roof beam body of right and pour, form wet seam between the left side strides roof beam body 1 and the midspan roof beam body 2, midspan roof beam body 2 and the right strides between the roof beam body 3, be equipped with a plurality of loop configuration's wet seam reinforcing bar 14 in the wet seam, precast beam body transverse reinforcement 15 includes upper and lower two-layer, and wet seam reinforcing bar 14 ligature is between upper and lower two-layer precast beam body transverse reinforcement 15 that corresponds.
The pouring layer comprises a middle high-strength concrete structural layer 11 and an asphalt layer 12 on the upper portion of the high-strength concrete structural layer 11. The thickness of the high-strength concrete structure layer 11 is 35mm-60mm, and the thickness of the asphalt layer 12 is 6-40 mm.
A plurality of evenly distributed N-shaped connecting steel bars 6 are fixedly connected in the high-strength concrete structure layer 11, and the height of the N-shaped connecting steel bars 6 is higher than that of the high-strength concrete structure layer 11.
The working process of the utility model is as follows:
during construction, the left side span beam body 1, the middle span beam body 2 and the right side span beam body 3 are placed on an external pier support to be assembled, high-strength concrete is poured on a wet joint and the span beam body, the thickness of a high-strength concrete structure layer 11 on the span beam body is 35-60mm, meanwhile, transverse end beam reinforcing steel bars 5 at two ends of the span beam body are poured to form a closed end 17, and an asphalt layer 12 is laid on a bridge floor after the high-strength concrete structure layer 11 is maintained to reach certain strength, wherein the thickness is about 6-40 mm.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A steel-concrete superposed prefabricated combined beam bridge structure is characterized by comprising a left side span beam body, a middle span beam body and a right side span beam body which are connected through pouring, wherein the left side span beam body, the middle span beam body and the right side span beam body respectively comprise a pouring layer and a steel structure at the lower part of the pouring layer; the two ends of each U-shaped steel beam are fixedly connected with T-shaped steel, a hole is formed in each T-shaped steel, transverse reinforcing steel bars of end cross beams penetrate through the holes, and the end parts of the U-shaped steel beams are formed into closed ends through pouring; and a beam unit diaphragm plate vertical to the U-shaped steel beams is fixedly connected between every two adjacent U-shaped steel beams.
2. The steel-concrete composite prefabricated composite beam bridge structure as claimed in claim 1, wherein the number of the rib plates between the two side edges of each U-shaped steel beam is five.
3. The steel-concrete overlapped prefabricated composite beam bridge structure as claimed in claim 1, wherein the number of beam unit diaphragms between every two adjacent U-shaped steel beams is two.
4. The steel-concrete overlapped prefabricated composite beam bridge structure as claimed in claim 1, wherein the transverse reinforcing steel bars of the end cross beams are arranged in upper and lower rows and fixedly connected through binding.
5. The steel-concrete overlapped prefabricated composite beam bridge structure as claimed in claim 1, wherein a plurality of shear nails are arranged on the T-shaped steel.
6. The steel-concrete composite prefabricated composite beam bridge structure as claimed in claim 1, wherein when the left span beam body, the middle span beam body and the right span beam body are spliced, wet joints are formed between the left span beam body and the middle span beam body and between the middle span beam body and the right span beam body, and a plurality of wet joint reinforcing steel bars are arranged in the wet joints.
7. The steel-concrete composite prefabricated composite beam bridge structure as claimed in claim 6, wherein the prefabricated beam body transverse steel bars comprise an upper layer and a lower layer, the wet joint steel bars are bound between the corresponding prefabricated beam body transverse steel bars of the upper layer and the lower layer, and the wet joint steel bars are of annular structures matched with the prefabricated beam body transverse steel bars of the upper layer and the lower layer.
8. The steel-concrete composite prefabricated composite beam bridge structure as claimed in any one of claims 1 to 7, wherein the pouring layer comprises a middle high-strength concrete structural layer and an asphalt layer on the upper part of the high-strength concrete structural layer.
9. The steel-concrete composite prefabricated composite beam bridge structure as claimed in claim 8, wherein the thickness of the high-strength concrete structure layer is 35-60mm, and the thickness of the asphalt layer is 6-40 mm.
10. The reinforced concrete superposed and prefabricated composite beam bridge structure according to claim 8, wherein a plurality of uniformly distributed connecting steel bars shaped like a Chinese character 'ji' are fixedly connected in the high-strength concrete structure layer, and the height of the connecting steel bars shaped like a Chinese character 'ji' is higher than that of the high-strength concrete structure layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020059641.5U CN211689841U (en) | 2020-01-13 | 2020-01-13 | Steel-concrete superposed prefabricated combined beam bridge structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020059641.5U CN211689841U (en) | 2020-01-13 | 2020-01-13 | Steel-concrete superposed prefabricated combined beam bridge structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211689841U true CN211689841U (en) | 2020-10-16 |
Family
ID=72800704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020059641.5U Active CN211689841U (en) | 2020-01-13 | 2020-01-13 | Steel-concrete superposed prefabricated combined beam bridge structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211689841U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113605213A (en) * | 2021-08-20 | 2021-11-05 | 上海市城市建设设计研究总院（集团）有限公司 | Novel assembled steel-concrete combined steel plate beam |
| CN113818332A (en) * | 2021-11-08 | 2021-12-21 | 浙江数智交院科技股份有限公司 | Bridge connection system, hogging moment district structure and bridge |
-
2020
- 2020-01-13 CN CN202020059641.5U patent/CN211689841U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113605213A (en) * | 2021-08-20 | 2021-11-05 | 上海市城市建设设计研究总院（集团）有限公司 | Novel assembled steel-concrete combined steel plate beam |
| CN113818332A (en) * | 2021-11-08 | 2021-12-21 | 浙江数智交院科技股份有限公司 | Bridge connection system, hogging moment district structure and bridge |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101798794B (en) | Composite box girder bridge erected in advance by using corrugated steel web steel girders and construction method thereof | |
| CN202131559U (en) | Corrugated steel web plate prestressed concrete continuous box girder | |
| CN105064198B (en) | Half prefabricated assembled corrugated steel web plate composite box girder and preparation method thereof | |
| CN211689841U (en) | Steel-concrete superposed prefabricated combined beam bridge structure | |
| CN211772741U (en) | Large-span variable-width corrugated web steel box-concrete continuous beam bridge | |
| CN211735002U (en) | Steel-concrete combined beam bridge capable of being installed quickly | |
| CN204825612U (en) | Prefabricated assembled wave form steel web combination box girder bridge | |
| CN203383137U (en) | Transversely assembled corrugated steel web combined box girder | |
| CN215405528U (en) | Bridge structure suitable for asymmetric rotation | |
| CN214459554U (en) | Combined beam | |
| CN214737317U (en) | Steel-concrete combined rigid frame bridge connected through slots | |
| CN214459548U (en) | Assembled steel and concrete combined rigid frame bridge | |
| CN211472112U (en) | Prefabricated corrugated steel web combination T-shaped girder bridge of assembling | |
| CN212335738U (en) | Double-combination continuous truss girder of combined steel web member for highway and railway construction | |
| CN114182620A (en) | Partial cable-stayed bridge structure system of large cantilever core steel box and construction method | |
| CN205188792U (en) | Prefabricated internal prestressing force steel and concrete composite simply supported girder bridge of assembling of fish belly wave form steel web | |
| CN103669193A (en) | Laterally spliced combination T beam with wavy steel webs and construction method thereof | |
| CN209941473U (en) | Embedded pier bent cap and girder connection structure | |
| CN209941469U (en) | Steel box girder thin-wall pier rigid frame cable-stayed bridge suitable for straddle type monorail | |
| CN112502023A (en) | Slot-connected steel-concrete combined rigid frame bridge and construction method thereof | |
| CN112502025A (en) | Rigid frame bridge with bolted sections and construction method thereof | |
| CN207776235U (en) | A kind of Prefabricated porous plate being connected | |
| CN112853916A (en) | Assembled waffle bridge panel combined box girder structure and construction method thereof | |
| CN101230671A (en) | Force-bearing type template component | |
| CN216891982U (en) | Steel-concrete combined bridge deck system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.91, Longhai Middle Road, Erqi District, Zhengzhou City, Henan Province, 450000 Patentee after: Zhengzhou Transportation planning Survey, Design and Research Institute Co.,Ltd. Address before: No.91, Longhai Middle Road, Erqi District, Zhengzhou City, Henan Province, 450000 Patentee before: ZHENGZHOU COMMUNICATIONS PLANNING SURVEY & DESIGN INSTITUTE |