CN217781699U - River-crossing steel structure bridge - Google Patents
River-crossing steel structure bridge Download PDFInfo
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- CN217781699U CN217781699U CN202221658011.5U CN202221658011U CN217781699U CN 217781699 U CN217781699 U CN 217781699U CN 202221658011 U CN202221658011 U CN 202221658011U CN 217781699 U CN217781699 U CN 217781699U
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Abstract
The utility model discloses a cross river steel structure bridge, include: the device comprises a foundation, embedded parts, a bridge structure and a protective railing; the foundation is formed by pouring steel bars and concrete and arranged at two ends of the river, and the foundation is provided with embedded parts to connect the foundation and the bridge structure into a stressed whole; the bridge structure comprises a plurality of main beams, secondary beams and pattern steel plates, wherein two main beams are arranged in parallel along the bridge width direction, the other main beams are arranged in parallel along the bridge length direction and connected between the two main beams arranged along the bridge width direction to form a whole, the secondary beams are connected among the main beams arranged in parallel along the bridge length direction in a segmented manner along the bridge width direction, the secondary beams are arranged at equal intervals along the bridge length direction, and the pattern steel plates are fully laid on a supporting beam formed by the main beams and the secondary beams; the protective railings are welded on two outer main beams arranged along the bridge length direction; the utility model discloses rational in infrastructure, stable performance, convenient dismantlement, effective reduce cost.
Description
Technical Field
The utility model belongs to the technical field of the building engineering construction, a cross river steel construction bridge is provided very much.
Background
Steel structure bridges are a type of bridge, and refer to the fact that the main bearing and bearing parts on the upper part of the bridge are made of steel. The steel structure bridge is the same as a bridge and is an air road crossing rivers, lakes and seas. The main materials of the steel bridge are steel plates, section steel and high-strength steel. Steel plates are mostly made of low alloy steel, and parts are made of cast steel and high quality carbon. The steel structure bridge has high material strength, good homogeneity and easy processing, so the steel structure bridge has light components and convenient transportation and erection, and the steel structure bridge increasingly shows the value. The steel bar concrete bridge has the advantages of low cost, good structural performance, high construction speed, good texture strength and the like, so that the steel bar concrete bridge replaces the traditional steel bar concrete structure bridge to a certain extent.
In the field of building construction, the construction period is short, temporary construction roads need to cross rivers, water channels, fish ponds and the like due to some particularity of site conditions of a construction site, so that the construction period is shortened to the maximum extent, the construction cost of the project is reduced, a steel structure bridge is preferred, the steel structure bridge can bear the load of a large-scale material component vehicle, the erection period is short, and the steel structure bridge can be detached, transported or recycled as required after the project is finished. The existing steel structure bridge is basically long-span and large-height, the structure is complex, a pier foundation needs to be arranged, a platform is erected during erection or a bridge erecting machine is used, the cost is high, and the construction period is long.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a cross a river steel structure bridge can the above-mentioned problem of effectual solution.
The technical scheme of the utility model is that: a river-crossing steel structure bridge, comprising: the device comprises a foundation 1, embedded parts 2, a bridge structure 3 and a protective railing 4; the foundation 1 is formed by pouring reinforcing steel bars 5 and concrete 6 and is arranged at two ends of a river, and the foundation 1 is provided with embedded parts 2 to connect the foundation 1 and a bridge structure 3 into a stressed whole; the bridge structure 3 comprises main beams 7, secondary beams 8 and pattern steel plates 9, wherein the number of the main beams 7 is multiple, two of the main beams 7 are arranged in parallel along the bridge width direction, the rest main beams 7 are arranged in parallel along the bridge length direction and are connected between the two main beams 7 arranged along the bridge width direction to form a whole, the secondary beams 8 are connected between the main beams 7 arranged in parallel along the bridge length direction in a segmented manner along the bridge width direction, the secondary beams 8 are arranged at equal intervals along the bridge length direction, and the pattern steel plates 9 are fully paved on a supporting beam formed by the main beams 7 and the secondary beams 8; the protective barrier 4 is welded on two outer main beams 7 arranged along the bridge length direction.
Further, the holding power layer of 1 below on basis is the silty clay layer, and the foundation bearing capacity is not less than 100kPa, and the basement is buried the holding power layer and is no less than 300mm, the bed course 14 has been pour between 1 and the holding power layer on basis, 14 intensity on bed course is C15, and thickness is 100mm, and each face is widened out each 100mm of 1 size on basis, reinforcing bar 5 is including atress main muscle and construction muscle, atress main muscle adopts diameter 16mm, interval 190mm to arrange, the construction muscle adopts diameter 12mm, interval 200mm to arrange, 6 intensity on concrete is C30.
Furthermore, the embedded part 2 comprises foundation bolts 15 and first steel plates 16, the specification of the foundation bolts 15 is M30, the first steel plates 16 are made of Q355B, the thickness of the first steel plates is 25mm, and 4 foundation bolts 15 and the first steel plates 16 are subjected to through hole plug welding.
Furthermore, the main beams 7 are H-shaped steel, the size is 692 × 300 × 13 × 20mm, and 9 main beams in total, the main beams 7 arranged in parallel in the bridge length direction are connected with the two main beams 7 arranged in parallel in the bridge width direction through second steel plates 17 and M30 high-strength bolts 18, and groove welding is adopted between the wing plates of the main beams 7.
Furthermore, the secondary beams 8 are H-shaped steel, the size of the H-shaped steel is 300 × 150 × 6.5 × 9mm, the number of the groups is 29, the distance between each group of the secondary beams 8 and the main beams 7 arranged in parallel along the bridge length direction is 500mm, and the secondary beams 8 are connected with the main beams 7 through second steel plates 17 and M30 high-strength bolts 18.
Further, the thickness of the pattern steel plate 9 is 8mm.
Further, guard rail 4 is highly 1200mm, and the material is square tube, guard rail 4 includes stand 10, horizontal pole 11, web member 12 and handrail 13, stand 10 adopts specification dimension to be 80 square tube of 3mm, 3 rows altogether, welds respectively on two outside girders 7 of arranging along the bridge length direction to and weld on the girder 7 that closes on one of them outside, stand 10 arranges that the interval is 2000mm one along the bridge length direction, horizontal pole 11 adopts specification dimension to be 80 square tube of 80 of 3mm, welds the position that 300mm is high in stand 10 bottom, web member 12 adopts specification dimension to be 40 of 2mm's square tube, welds on horizontal pole 11, and the interval is 150mm, handrail 13 adopts specification dimension to be 80 of 3 mm's square tube, welds at stand 10 and web member 12 top.
Furthermore, rib plates 20 are welded at two ends of a plurality of main beams 7 which are arranged in parallel along the bridge length direction, each rib plate 20 is formed by welding a vertical part and a horizontal part, and a Teflon cushion plate 19 is arranged between the horizontal part of each rib plate 20 and the first steel plate 16 and is connected with the foundation bolts 15.
Further, C30 concrete is poured between the foundation 1 and the bridge structure 3 to form a transition section 21.
The utility model discloses following profitable effect has:
the utility model mainly comprises a foundation, embedded parts and a main body structure of the steel bridge, wherein the main body structure of the steel bridge comprises a main beam, a secondary beam, a bridge floor and handrail rails, the foundation is of a reinforced concrete structure and is arranged at two ends of a river, and during the construction of the foundation, the embedded parts and the foundation steel bars are welded and fixed and then concrete pouring is carried out; the two ends of the main beam of the steel bridge are connected with foundation bolts of the embedded parts, so that the load borne by the steel bridge is transferred to the foundation and then to the foundation, and a finished stress system is formed.
During construction, firstly, constructing a reinforced concrete foundation on two sides of a river bank, embedding foundation bolts before pouring, connecting a main beam and the foundation through the foundation bolts after the foundation reaches the design strength, welding a secondary beam and a protective railing on the main beam, and paving a pattern steel plate, thereby forming a bridge; set up the changeover portion in foundation and bridge floor structure handing-over department, reduce the settlement difference between the two, improve the driving travelling comfort.
The components of the utility model mainly adopt the connection modes of welding, riveting or bolt, etc., and are easy to reform, such as reinforcement, height connection and width expansion, and the change is easy and flexible; if the bridge member has defects, the bridge member can be disassembled, assembled and replaced, the safety of the bridge is guaranteed, the disassembled and replaced old parts can be remelted, energy can be saved, and the method conforms to the policy of sustainable development.
The utility model discloses the quality is light, and easy dismounting when needing to change its course, shift because of site conditions influence construction road, can wholly dismantle, hoist and mount, and the reinstallation has shortened the activity duration greatly, has reduced the construction influence to the building site.
The utility model discloses there are a lot of holes and cavity in the structure space, the pipeline of being convenient for is arranged, is changed and is repaired.
Drawings
Fig. 1 is a front view of the present invention;
fig. 2 is a side view of the present invention;
fig. 3 is a top view of the present invention;
FIG. 4 is a large illustration of the middle foundation of the present invention;
FIG. 5 is a large sample drawing of a middle embedded part of the utility model;
FIG. 6 is a big sample diagram of the connection between the middle foundation and the embedded part of the utility model;
FIG. 7 is a schematic view showing the connection between the middle foundation and the main beam;
FIG. 8 is a schematic view showing the connection between the middle bridge length and the main beam in the bridge width direction;
FIG. 9 is a schematic view showing the connection between the main beam and the secondary beam;
fig. 10 is a schematic view showing the connection between the embedded part and the main beam;
FIG. 11 is a big drawing of the connection between the middle main beam and the rib plate of the utility model;
FIG. 12 is a perspective view of the upper patterned steel plate of the present invention;
in the figure: 1. a foundation; 2. embedding parts; 3. a bridge structure; 4. a guard rail; 5. reinforcing steel bars; 6. concrete; 7. a main beam; 8. a secondary beam; 9. a patterned steel plate; 10. a column; 11. a cross bar; 12. a web member; 13. a handrail; 14. a cushion layer; 15. anchor bolts; 16. a first steel plate; 17. a second steel plate; 18. m30 high-strength bolts; 19. a Teflon liner plate; 20. a rib plate; 21. a transition section.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1, 2, 3 and 12, a river-crossing steel structure bridge comprises: the device comprises a foundation 1, embedded parts 2, a bridge structure 3 and a protective railing 4; the foundation 1 is formed by pouring reinforcing steel bars 5 and concrete 6 and is arranged at two ends of a river, and the foundation 1 is provided with embedded parts 2 to connect the foundation 1 and a bridge structure 3 into a stressed whole; the bridge structure 3 comprises main beams 7, secondary beams 8 and pattern steel plates 9, wherein the number of the main beams 7 is multiple, two of the main beams 7 are arranged in parallel along the bridge width direction, the rest main beams 7 are arranged in parallel along the bridge length direction and are connected between the two main beams 7 arranged along the bridge width direction to form a whole, the secondary beams 8 are connected among the main beams 7 arranged in parallel along the bridge length direction in a segmented manner along the bridge width direction, the secondary beams 8 are arranged at equal intervals along the bridge length direction, and the pattern steel plates 9 are fully paved on a supporting beam formed by the main beams 7 and the secondary beams 8; the protective railing 4 is welded on two outer main beams 7 arranged along the bridge length direction.
In the embodiment, as shown in fig. 4, the similar toe of 1 shape in basis, the holding power layer of 1 below in basis is the silty clay layer, the ground bearing capacity is not less than 100kPa, 300mm is no less than on the base embedding holding power layer, bed course 14 has been pour between 1 in basis and the holding power layer, 14 intensity in bed course is C15, thickness is 100mm, each face is widened out each 100mm of 1 size in basis, reinforcing bar 5 includes atress owner muscle and structure muscle, atress owner muscle adopts diameter 16mm, interval 190mm arranges, the structure muscle adopts diameter 12mm, interval 200mm arranges, 6 intensity in concrete is C30.
In the embodiment of the present invention, as shown in fig. 5, the embedded part 2 includes the anchor bolts 15 and the first steel plate 16, the size of the anchor bolts 15 is M30, the material of the first steel plate 16 is Q355B, the thickness is 25mm, and 4 anchor bolts 15 and the first steel plate 16 are plug welded.
In the embodiment of the utility model, as shown in fig. 8, girder 7 is H shaped steel, and the size is 692 x 300 x 13 x 20mm, totally 9, is connected through second steel sheet 17 and M30 high strength bolt 18 between girder 7 along the parallel arrangement of bridge length direction and two girders 7 along the parallel arrangement of bridge width direction, adopts the groove welding between the girder 7 pterygoid lamina.
In the embodiment of the present invention, as shown in fig. 9, the secondary beam 8 is H-shaped steel, and has a size of 300 × 150 × 6.5 × 9mm, and 29 groups, and the distance between each group along the bridge length direction is 500mm, and the secondary beam 8 and the plurality of main beams 7 arranged in parallel along the bridge length direction are connected through the second steel plate 17 and the M30 high-strength bolts 18.
In the embodiment of the present invention, the thickness of the patterned steel plate 9 is 8mm.
In the embodiment, protection railing 4 highly is 1200mm, the material is the square tube, protection railing 4 includes stand 10, horizontal pole 11, web member 12 and handrail 13, stand 10 adopts specification dimension to be 80 the square tube of 3mm, 3 rows altogether, form the people car reposition of redundant personnel, as shown in fig. 2, weld respectively on two outside girders 7 of arranging along the bridge length direction, and the welding is on the girder 7 that closes on one of them outside, stand 10 arranges the interval along the bridge length direction and is 2000mm one, horizontal pole 11 adopts specification dimension to be 80 the square tube of 80 the 3mm, the welding is in the high position of stand 10 bottom 300mm, web member 12 adopts specification dimension to be 40 the square tube of 2mm, the welding is on horizontal pole 11, the interval is 150mm, handrail 13 adopts specification dimension to be 80 the square tube of 80 the 3mm, the welding is at stand 10 and web member 12 tops.
In the embodiment, as shown in fig. 10 and 11, the two ends of the main beams 7 arranged in parallel along the bridge length direction are welded with the rib plates 20, the rib plates 20 are formed by welding the vertical part and the horizontal part, the teflon base plate 19 is arranged between the horizontal part of the rib plate 20 and the first steel plate 16 and is connected with the foundation bolt 15, the stress can be transmitted by arranging the teflon base plate 19, and the vertical rib plates 20 are arranged to completely connect the main beams 7 and the embedded parts 2.
In the embodiment, pour C30 concrete and form changeover portion 21 between basis 1 and the bridge structures 3, through setting up the reducible settlement of changeover portion 21, improve the driving travelling comfort.
The utility model discloses well each component size can be adjusted according to actual conditions, only explains briefly the steel structure bridge of crossing a river under the specific case in this embodiment.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.
Claims (9)
1. The utility model provides a cross river steel structure bridge which characterized in that includes: the device comprises a foundation (1), embedded parts (2), a bridge structure (3) and a protective railing (4); the foundation (1) is formed by pouring steel bars (5) and concrete (6) and is arranged at two ends of a river, and embedded parts (2) are arranged on the foundation (1) to connect the foundation (1) and a bridge structure (3) into a stressed whole; the bridge structure (3) comprises main beams (7), secondary beams (8) and pattern steel plates (9), wherein the number of the main beams (7) is multiple, two of the main beams (7) are arranged in parallel along the bridge width direction, the rest main beams (7) are arranged in parallel along the bridge length direction and are connected between the two main beams (7) arranged along the bridge width direction to form a whole, the secondary beams (8) are connected among the main beams (7) arranged in parallel along the bridge length direction in a segmented manner along the bridge width direction, the secondary beams (8) are arranged at equal intervals along the bridge length direction, and the pattern steel plates (9) are fully paved on a supporting beam formed by the main beams (7) and the secondary beams (8); the protective railings (4) are welded on two outer main beams (7) arranged along the bridge length direction.
2. The river-crossing steel structure bridge according to claim 1, wherein a bearing layer below a foundation (1) is a silty clay layer, the bearing capacity of the foundation is not less than 100kPa, the base embedded bearing layer is not less than 300mm, a cushion layer (14) is poured between the foundation (1) and the bearing layer, the strength of the cushion layer (14) is C15, the thickness of the cushion layer is 100mm, each face of the cushion layer is 100mm wider than the size of the foundation (1), the reinforcing steel bars (5) comprise stressed main bars and construction bars, the stressed main bars are arranged at intervals of 16mm in diameter and 190mm in distance, the construction bars are arranged at intervals of 200mm in diameter and 12mm in diameter, and the strength of the concrete (6) is C30.
3. A river-crossing steel structure bridge according to claim 1, wherein the embedded parts (2) comprise anchor bolts (15) and first steel plates (16), the size of the anchor bolts (15) is M30, the first steel plates (16) are made of Q355B, the thickness of the first steel plates is 25mm, and 4 anchor bolts (15) are in plug welding with through holes of the first steel plates (16).
4. The cross-river steel structure bridge according to claim 1, wherein the girders (7) are H-shaped steel with the size of 692 x 300 x 13 x 20mm, 9 girders in total, the girders (7) arranged in parallel in the bridge length direction are connected with two girders (7) arranged in parallel in the bridge width direction through second steel plates (17) and M30 high-strength bolts (18), and groove welding is adopted between the flanges of the girders (7).
5. A river-crossing steel structure bridge according to claim 1, wherein the secondary beams (8) are H-shaped steel with the size of 300 x 150 x 6.5 x 9mm, the number of the secondary beams is 29, the distance between each group of the secondary beams (8) and the plurality of the main beams (7) which are arranged in parallel along the bridge length direction is 500mm, and the secondary beams (8) are connected through second steel plates (17) and M30 high-strength bolts (18).
6. A river-crossing steel structural bridge according to claim 1, wherein the thickness of the pattern steel plate (9) is 8mm.
7. A river-crossing steel structure bridge according to claim 1, wherein the height of the protection handrail (4) is 1200mm, the material is square tube, the protection handrail (4) comprises columns (10), cross bars (11), web members (12) and handrail (13), the columns (10) are square tubes with the specification size of 80 x 3mm, 3 rows of the columns are welded on two outer side girders (7) arranged along the bridge length direction and welded on the girders (7) adjacent to one of the outer sides, the intervals between the columns (10) are 2000mm in the bridge length direction, the cross bars (11) are square tubes with the specification size of 80 x 3mm, the columns (10) are welded at the position 300mm high at the bottom of the columns, the web members (12) are square tubes with the specification size of 40 x 2mm, the intervals are welded on the cross bars (11), the intervals are 150mm, and the handrail (13) is square tubes with the specification size of 80 x 3mm, the columns (10 x 12) are welded at the top of the web members (12).
8. The river-crossing steel structure bridge according to claim 1, wherein rib plates (20) are welded at two ends of a plurality of main beams (7) which are arranged in parallel along the bridge length direction, each rib plate (20) is formed by welding a vertical part and a horizontal part, and a Teflon liner plate (19) is arranged between the horizontal part of each rib plate (20) and the first steel plate (16) and connected with the foundation bolts (15).
9. A river-crossing steel structure bridge according to claim 1, wherein a transition section (21) is formed by pouring C30 concrete between the foundation (1) and the bridge structure (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221658011.5U CN217781699U (en) | 2022-06-29 | 2022-06-29 | River-crossing steel structure bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221658011.5U CN217781699U (en) | 2022-06-29 | 2022-06-29 | River-crossing steel structure bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217781699U true CN217781699U (en) | 2022-11-11 |
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ID=83937671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221658011.5U Active CN217781699U (en) | 2022-06-29 | 2022-06-29 | River-crossing steel structure bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217781699U (en) |
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2022
- 2022-06-29 CN CN202221658011.5U patent/CN217781699U/en active Active
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