CN207846214U - Steel-concrete combined bridge with discontinuous perforated steel plate connection - Google Patents
Steel-concrete combined bridge with discontinuous perforated steel plate connection Download PDFInfo
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- CN207846214U CN207846214U CN201721817287.2U CN201721817287U CN207846214U CN 207846214 U CN207846214 U CN 207846214U CN 201721817287 U CN201721817287 U CN 201721817287U CN 207846214 U CN207846214 U CN 207846214U
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- steel
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- open pore
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 111
- 239000010959 steel Substances 0.000 title claims abstract description 111
- 239000004567 concrete Substances 0.000 title claims abstract description 47
- 210000003205 muscle Anatomy 0.000 claims description 81
- 239000011148 porous material Substances 0.000 claims description 38
- 230000002787 reinforcement Effects 0.000 claims description 27
- 239000011150 reinforced concrete Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 abstract description 11
- 238000005336 cracking Methods 0.000 abstract description 8
- 230000007547 defect Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 20
- 238000010586 diagram Methods 0.000 description 11
- 239000004570 mortar (masonry) Substances 0.000 description 9
- 239000002131 composite material Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000009408 flooring Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 239000007787 solid Substances 0.000 description 4
- 230000002929 anti-fatigue Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011376 self-consolidating concrete Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 210000001364 upper extremity Anatomy 0.000 description 1
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- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses a be interrupted steel and concrete combination bridge that trompil steel sheet is connected comprises concrete decking, steel girder and steel-thoughtlessly connecting structure, concrete decking and steel girder pass through the steel-thoughtlessly connecting structure at the scene fixedly. The utility model discloses combine the advantage of cluster nail formula toggle pin connecting piece and trompil steel sheet connecting piece, provide a connection structure suitable for rapid Assembly type steel-mix combination bridge to fundamentally solves the poor defect of fatigue resistance of cluster nail connection type rapid Assembly type steel-mix combination bridge in the existing market with phase to improve the anti cracking performance in hogging moment district.
Description
Technical field
The utility model is related to a kind of bridge structure more particularly to a kind of steel reinforced concrete composite bridges of interruption open pore steel plate connection
Beam.
Background technology
Bridge is the key facility during freeway net is built with modern city multilevel traffic net.The design of bridge at present
To meet based on safety and the durability of itself, and less interference of the consideration work progress to traffic, destruction to environment etc.
Factor.As industrialized level is continuously improved, the appearance of prefabricated assembled bridge provides a kind of solution for the above problem：
Using prefabrication segment, the technique of on-site consolidation, component production quality is improved, is shortened the construction period, reduces construction operation area, and
Make later maintenance and remove more convenient economy, to reduce the Life cycle cost of bridge.Quick assembled type steel-is mixed at present
Composite bridge mostly uses cluster formula peg connection floorings and girder steel, but Welded-Stud Conectors anti-fatigue performance is poor, and hogging moment area is easy
Cracking, application range are greatly limited.Compared with traditional Welded-Stud Conectors, open pore steel plate connector has shear-carrying capacity
High, the advantages that rigidity is big and anti-fatigue performance is good, and open pore steel plate connector is without complicated welding procedure, it is easy for construction,
Large-scale steel-concrete composite beam preferred form is had become, and has obtained extensive popularization and application.But it uses and construction is prepared in situ
Mode, cause construction period longer, delay the operation open hour of bridge, cause the inconvenience of traffic.
Utility model content
The main purpose of the utility model is that overcoming defect existing for existing combined bridge, and provide a kind of interruption
The steel reinforced concrete combined bridge of open pore steel plate connection, improves the cracking resistance of hogging moment area, thus more suitable for practicality, and has industry
On utility value.
The utility model is realized using following scheme：
The utility model proposes assembled steel-mix combined bridge, connect by concrete slab, steel girder and steel-mixed connection
Contexture, the concrete slab and steel girder mix connecting structure by steel-and fix at the scene.
Preferably, assembled steel-mixes combined bridge, and the steel-mixed connection, which connects, is configured to fabricated structure.
Preferably, assembled steel-mixes combined bridge, the steel-mix connecting structure include steel reinforcement cage, it is embedded sleeve barrel, pre-
It buries telescoping tube, run through muscle and open pore steel plate,
It is described to be arranged in pre-buried telescoping tube through muscle one end, it is described to pass through the open pore steel plate top through the muscle other end
Trepanning and steel reinforcement cage, be connected with the embedded sleeve barrel；By this knockdown structure, peace can be directly lifted at the scene
Floorings are filled, the time of site operation is shortened, bridge operation is reduced to greatest extent and is open to traffic the time.
Preferably, assembled steel-mixes combined bridge, and open pore steel plate, trepanning steel are welded in the top flange of the steel girder
Plate as steel-mix connecting structure a building block, by open pore steel plate fix steel girder so that by concrete slab with
Steel girder connects.
In order to ensure the connectivity robustness between concrete slab and steel girder, it is welded in the top flange of steel girder more
A open pore steel plate, wherein open pore steel plate occur in pairs, and setting is spaced between each pair of open pore steel plate, by the way that multipair open pore steel plate is arranged
Realize stronger connection.
Preferably, assembled steel-mixes the construction technology of combined bridge, including following operating procedure,
Step 1, be prefabricated in the factory concrete slab and steel girder；
Step 2 assembles at the scene, by steel-mix connecting structure the concrete slab and steel girder connected into it is whole
Body；
Step 3, mixed solidified by mortar between connecting structure and concrete slab and steel girder of the steel-are fixed.
Preferably, assembled steel-mixes the construction technology of combined bridge, the steel-mix connecting structure include steel reinforcement cage, it is pre-
It buries sleeve, pre-buried telescoping tube, run through muscle and open pore steel plate,
It is described when being prefabricated in the factory concrete slab through muscle, it has been placed in pre-buried telescoping tube, constructs at the scene
When pull straight out, the pre-buried telescoping tube and embedded sleeve barrel are arranged at the inside of the concrete slab, pre-buried flexible
Pipe is used to store when floorings are prefabricated after the completion of muscle, construction, solid through two end difference quilt cover cylinders of muscle and telescoping tube
It is fixed, play the role of transmitting load.
Wherein run through and be flexibly connected between muscle and pre-buried telescoping tube, can be bolted or snap connection.
Preferably, assembled steel-mixes the construction technology of combined bridge, and the pre-buried telescoping tube is arranged in the concrete bridge
The inside of panel.
In order to enhance the fastness run through between muscle and the concrete mortar of cast, pre-buried telescoping tube is being not connected with through muscle
One end outer surface at a certain distance from multiple protrusions are set, protrusion can be uniformly arranged or uneven setting, each protrusion
Height can be identical or different, it is therefore intended that improve the fastness being connect with concrete mortar through muscle.
Preferably, assembled steel-mixes the construction technology of combined bridge, and the embedded sleeve barrel is arranged in the concrete bridge deck
The inside of plate.
In order to enhance the fastness between embedded sleeve barrel and the concrete mortar of cast, it is arranged in the inner surface of embedded sleeve barrel
Multiple protrusions, protrusion can be uniformly arranged the height of each protrusion of either uneven setting can be identical or different, mesh
Be improve the fastness that is connect with concrete mortar of embedded sleeve barrel.
The beneficial effects of the utility model are：
1, the utility model combination cluster nail type Welded-Stud Conectors and the advantages of open pore steel plate connector, it is proposed that one kind is applicable in
The connecting structure of composite bridge is mixed in quick assembled type steel-, the fast quick-mounting of connecting-type is followed closely to fundamentally solve cluster currently on the market
The defect of composite bridge anti-fatigue performance difference is mixed with formula steel-, and improves the cracking resistance of hogging moment area.
2, steel reinforcement cage is set at link position, there are two effects, and one is in construction to through the support of one, muscle, because
It is across the trepanning plate hole heart through muscle, intermediate other than both ends not support, fearness grouting material rushes it when pouring
It is askew, so to fix；Another effect is the crack resistance improved herein, and pure grouting material is easy cracking.
When 3, being prefabricated in the factory concrete slab through muscle, have been placed in pre-buried telescoping tube, when constructing at the scene
It pulls straight out and, pre-buried telescoping tube is arranged at the inside of the concrete slab with embedded sleeve barrel, and pre-buried telescoping tube is in bridge
It is used to store after the completion of muscle, construction when panel is prefabricated, through two ends of muscle, quilt cover cylinder is fixed with telescoping tube respectively, is played
Transmit the effect of load.
4, run through muscle one end to be arranged in pre-buried telescoping tube, the other end passes through trepanning and the reinforcing bar on the open pore steel plate top
Cage is connected with embedded sleeve barrel；By this knockdown structure, installation floorings can be directly lifted at the scene, are shortened
The time of site operation reduces bridge operation and is open to traffic the time to greatest extent.
Description of the drawings
Fig. 1 is the utility model bridge structure overall schematic（The built-in fittings such as the sleeve inside concrete are embedded in not draw
Go out）；
Fig. 2 is steel main beam structure schematic diagram；
Fig. 3 is deck structrue schematic diagram；
Fig. 4 is embedded sleeve barrel structural schematic diagram；
Fig. 5 is pre-buried flexible pipe structure schematic diagram；
Fig. 6 is connecting structure structural schematic diagram；
Fig. 7 is reinforcement cage structure schematic diagram；
Fig. 8 is reinforcement cage structure vertical view；
Fig. 9 is the dimensional structure diagram at reserved notch position；
Figure 10 is pre-buried telescoping tube enlarged diagram；
Figure 11 is that embodiment 2 runs through muscle structural schematic diagram；
Figure 12 is 2 pre-buried flexible pipe structure schematic diagram of embodiment；
Mark meaning in figure：1. concrete slab, 2. steel girders, 3. steel reinforcement cages, 4. embedded sleeve barrels, 5. is pre-buried flexible
Pipe, 6. run through muscle, and 7. open pore steel plates, 8. reserved notches, 9. trepannings, 10. embedded sleeve barrels are raised, and 11, buckle, 12. is convex through muscle
It rises.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, with reference to embodiments, to this
Utility model is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain this practicality
It is novel, it is not used to limit the utility model.
The position using grouting material proposed in the following example can change self-compacting concrete into.
Embodiment 1
The utility model proposes assembled steel-mix composite bridge, connect by concrete slab 1, steel girder 2 and steel-mixed connection
Contexture, wherein concrete slab 1 and steel girder 2 mix connecting structure by steel-and fix at the scene.
Steel-mixed connection, which connects, is configured to fabricated structure, includes steel reinforcement cage 3, embedded sleeve barrel 4, pre-buried telescoping tube 5, runs through muscle 6
With open pore steel plate 7, embedded sleeve barrel 4 and pre-buried telescoping tube 5 are hollow-core construction, are arranged in pre-buried telescoping tube 5 through one end of muscle 6
Interior, the other end passes through trepanning 9 and the steel reinforcement cage 3 on 7 top of open pore steel plate, is connected with embedded sleeve barrel 4.Pre-buried telescoping tube 5 is not put
The other end through muscle 6 is set to be arranged in the inside of concrete slab 1, be prefabricated in the factory concrete slab when pre-buried enter；
The not connected other end through muscle 6 of embedded sleeve barrel 4 is arranged in the inside of concrete slab 1, and be prefabricated in the factory concrete bridge deck
Pre-buried when plate to enter, the overall schematic after installation is complete is as shown in Figure 1.
In order to realize the connection of concrete slab 1 and steel girder 2, open pore steel plate is welded in the top flange of steel girder 2
7,9 size of trepanning on 7 top of open pore steel plate is more than the diameter through muscle 6, specific to be processed more than 9 size of trepanning of diameter with facilitating
It is chosen for principle with guarantee fastness, installation effect is as shown in Figure 6.
In order to effectively ensure the fastness of concrete slab 1 and the connection of steel girder 2, welded in 2 top flange of steel girder
Open pore steel plate 7 in pairs use, i.e., two panels open pore steel plate 7 be one group, every group of open pore steel plate 7 is symmetricly set on 2 upper limb of steel girder
One position of edge.The interval of open pore steel plate 7 setting at 2 top flange of steel girder, when interval location is prefabricated with concrete slab 1
8 position of reserved notch it is corresponding, for realizing the connection of concrete slab 1 and steel girder 2, schematic diagram is as shown in Figure 2.
One preferred scheme is that pre-buried telescoping tube 5 is mutually fixed with through muscle 6 by screw thread, in pre-buried telescoping tube 5
Surface is provided with internal thread, and the outer surface of muscle 6 is provided with external screw thread, by external screw thread on muscle 6 and pre-buried flexible
The internal thread of pipe 5 will pass through muscle 6 and be screwed in pre-buried telescoping tube 5, and specific link position is adjustable according to actual condition, such as Fig. 5
It is shown.But at least to ensure that through muscle 6 be through muscle diameter in 20d or so, d with 5 effective connection length of pre-buried telescoping tube.
One preferred scheme is, in order to ensure the connectivity robustness run through between muscle 6 and cast mortar, through muscle 6
One end outer surface being connected with embedded sleeve barrel 4 is provided with protrusion, that is, runs through muscle protrusion 12, and its object is to improve to run through muscle 6
With the connectivity of embedded sleeve barrel 4, through muscle protrusion 12 can it is uniform or it is non-uniform be arranged through the outer surface of muscle 6, pass through
The height for wearing muscle protrusion 12 can be identical or different, and shape is also not particularly limited, and can be arc-shaped, rectangle, just
Rectangular or any shape that can be realized, it is optimal selection to facilitate the shape of processing.
Wherein, it is provided with the scheme of protrusion for through one end outer surface that muscle 6 is connected with embedded sleeve barrel 4, runs through muscle 6
Still the mode of internal thread can be selected to connect between pre-buried telescoping tube 5, can be applied in combination between two schemes.
One preferred scheme is that the shape of steel reinforcement cage 3 is unified, is prefabricated in the factory, opposite with the shape of reserved notch 8
It answers, 3 external dimensions of steel reinforcement cage is slightly less than the size of reserved notch 8, when concrete slab 1 and steel girder 2 are installed, steel reinforcement cage 3
Inside reserved notch 8.
Steel reinforcement cage 3 is by the orthogonal cuboid mostly prepared with reinforcement welding or square build solid knot
Structure, wherein the small cuboid or square build space, size that are formed are more than the diameter through muscle 6, that is, running through muscle 6 can be from
It is passed through among steel reinforcement cage 3.
Assembled steel-mixes the construction technology of combined bridge, including following operating procedure,
Step 1, be prefabricated in the factory concrete slab 1 and steel girder 2, and wherein precast concrete floorings 1 are internal, every
At the opposite position of a reserved notch 8, it is embedded with embedded sleeve barrel 4 and pre-buried telescoping tube 5 respectively；2 top flange of steel girder is welded with
The open pore steel plate 7 of discontinuous arrangement, open pore steel plate 7 use in pairs, are a pair per two panels open pore steel plate 7, are fixed on steel girder 2
At the edge of a wing, the trepanning 9 on each pair of open pore steel plate 7 is corresponding, for across through muscle 6.
Step 2, when assembling at the scene, by steel-mix connecting structure concrete slab 1 and steel girder 2 connected into it is whole
Body, concrete operations are,
The flexible connection of muscle 6 should be will pass through before lifting concrete slab 1 to be placed in pre-buried telescoping tube 5, when lifting answers
Ensure embedded sleeve barrel 4,5 axis of pre-buried telescoping tube with 9 center of circle of trepanning on open pore steel plate 7 on a horizontal line；Floorings are fixed
After the completion of position, first prefabricated steel reinforcement cage is put into reserved notch 8, muscle 6 is then will pass through and is pulled out out of pre-buried telescoping tube 5,
Trepanning 9 on open pore steel plate 7 is until end enters in embedded sleeve barrel 4.Wherein steel reinforcement cage 3 can be used to solid in the construction process
Surely run through muscle 6, the cracking resistance for improving concrete can be played the role of after the completion of construction.
Step 3, mixed solidified by mortar between connecting structure and concrete slab 1 and steel girder 2 of steel-are fixed, specifically
, after being positioned through muscle 6, reserved notch 8 is filled using high-strength and with high fluidity mortar, until mortar is solidifying
Gu concrete slab 1 and steel girder 2 are linked to be an entirety.
One preferred scheme is that 4 inner wall of embedded sleeve barrel increases itself with protrusion construction is both provided with through 6 end of muscle
Snap-in force between concrete increases to play the role of reducing sliding through 6 end of muscle through 6 anti-bending strength of muscle；
Through muscle protrusion 12 can it is uniform or it is non-uniform be arranged through the outer surface of muscle 6, the height through muscle protrusion 12 can be with
Identical or different, shape is also not particularly limited, and can is arc-shaped, rectangle, square or any can be realized
Shape, facilitate processing shape be optimal selection.
One preferred scheme is that pre-buried telescoping tube 5 is mutually fixed with through muscle 6 by screw thread, in pre-buried telescoping tube 5
Surface is provided with internal thread, and the outer surface of muscle 6 is provided with external screw thread, by external screw thread on muscle 6 and pre-buried flexible
The internal thread of pipe 5 will pass through muscle 6 and be screwed in pre-buried telescoping tube 5, and specific link position is adjustable according to actual condition, such as Fig. 5
It is shown.But at least to ensure that through muscle 6 be through muscle diameter in 20d or so, d with 5 effective connection length of pre-buried telescoping tube.
Wherein, it is provided with the scheme of protrusion for through one end outer surface that muscle 6 is connected with embedded sleeve barrel 4, runs through muscle 6
Still the mode of internal thread can be selected to connect between pre-buried telescoping tube 5, can be applied in combination between two schemes.
One preferred scheme is that the shape of steel reinforcement cage 3 is unified, is prefabricated in the factory, opposite with the shape of reserved notch 8
It answers, 3 external dimensions of steel reinforcement cage is less than the size of reserved notch 8, when installing concrete slab 1 and steel girder 2, steel reinforcement cage 3
Inside reserved notch 8.
The shape of steel reinforcement cage 3 and the shape of reserved notch 8 can also have difference, when shape has difference, also ensure steel
Muscle cage can play the role of support and cracking resistance.
Steel reinforcement cage 3 is by the orthogonal cuboid mostly prepared with reinforcement welding or square build solid knot
Structure, wherein the small cuboid or square build space, size that are formed are more than the diameter through muscle 6, that is, running through muscle 6 can be from
It is passed through among steel reinforcement cage 3；Wherein most preferred scheme is that the small cuboid to be formed or square build bulk are just big
In the diameter through muscle 6；There are two the effects of steel reinforcement cage, and one is supported to one through muscle in construction, because running through muscle
It is across the trepanning plate hole heart, intermediate other than both ends not support, fearness grouting material rushes it when pouring askew, institute
To fix；Another effect is the crack resistance improved herein, and pure grouting material is easy cracking.
Embodiment 2
On the basis of embodiment 1 is disclosed, the present embodiment proposes a new buckle connecting structure.Through muscle 6 with it is pre-buried
Movable connection structure between telescoping tube 5, that is, snap connection, and local enlarged structure as is illustrated by figs. 11 and 12, will pass through muscle 6
Endpiece make spherical shape, the diameter of ball is slightly larger than the diameter through muscle 6.5 internal diameter of pre-buried telescoping tube major part and spherical diameter phase
Matching, making can be free to slide along its through muscle and end ball construction；5 port section internal diameter of pre-buried telescoping tube with through muscle it is straight
Diameter matches, and blocks and lives to run through the ball-shaped end of muscle 6；Make to may pass through that its is free to slide through muscle, and end ball can not pass through.
It is designed to spherical transition at 5 broken-line of pre-buried telescoping tube.
On the basis of said program, a preferred scheme is that the other end that spherical structure is not provided to through muscle 6 is set
It is equipped with raised construction, for increasing its snap-in force between concrete.
The preferable specific implementation mode of the above, only the utility model, but the scope of protection of the utility model is not
Be confined to this, any one skilled in the art within the technical scope disclosed by the utility model, according to this practicality
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (5)
1. a kind of steel reinforced concrete combined bridge of interruption open pore steel plate connection, it is characterised in that：By concrete slab（1）, steel girder
（2）Contexture, the concrete slab are connect with steel-mixed connection（1）With steel girder（2）Connecting structure is mixed by steel-at the scene
It is fixed；
It includes steel reinforcement cage that the steel-, which mixes connecting structure,（3）, embedded sleeve barrel（4）, pre-buried telescoping tube（5）, run through muscle（6）With open
Hole steel plate（7）, described to run through muscle（6）One end is arranged in pre-buried telescoping tube（5）It is interior, it is described to run through muscle（6）The other end passes through described
Open pore steel plate（7）The trepanning on top（9）And steel reinforcement cage（3）, with the embedded sleeve barrel（4）It is connected.
2. the steel reinforced concrete combined bridge of interruption open pore steel plate connection according to claim 1, it is characterised in that：The steel-is mixed
Connecting structure is fabricated structure.
3. being interrupted the steel reinforced concrete combined bridge of open pore steel plate connection according to claims 1 or 2 any one of them, it is characterised in that：
In the steel girder（2）Top flange be welded with open pore steel plate（7）.
4. the steel reinforced concrete combined bridge of interruption open pore steel plate connection according to claim 1, it is characterised in that：It is described to run through muscle
（6）With pre-buried telescoping tube（5）Between be flexibly connected.
5. the steel reinforced concrete combined bridge of interruption open pore steel plate connection according to claim 1 or 4, it is characterised in that：Described
Through muscle（6）With embedded sleeve barrel（4）One end outer surface being connected is provided through muscle protrusion（12）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721817287.2U CN207846214U (en) | 2017-12-22 | 2017-12-22 | Steel-concrete combined bridge with discontinuous perforated steel plate connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721817287.2U CN207846214U (en) | 2017-12-22 | 2017-12-22 | Steel-concrete combined bridge with discontinuous perforated steel plate connection |
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| Publication Number | Publication Date |
|---|---|
| CN207846214U true CN207846214U (en) | 2018-09-11 |
Family
ID=63422286
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721817287.2U Active CN207846214U (en) | 2017-12-22 | 2017-12-22 | Steel-concrete combined bridge with discontinuous perforated steel plate connection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035241A (en) * | 2017-12-22 | 2018-05-15 | 苏交科集团股份有限公司 | Assembled steel-concrete composite bridge and construction process thereof |
-
2017
- 2017-12-22 CN CN201721817287.2U patent/CN207846214U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035241A (en) * | 2017-12-22 | 2018-05-15 | 苏交科集团股份有限公司 | Assembled steel-concrete composite bridge and construction process thereof |
| CN108035241B (en) * | 2017-12-22 | 2024-08-13 | 苏交科集团股份有限公司 | Assembled steel-concrete combined bridge and construction process thereof |
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