CN109183615B - Multi-main-beam type steel-concrete combined continuous beam - Google Patents
Multi-main-beam type steel-concrete combined continuous beam Download PDFInfo
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- CN109183615B CN109183615B CN201810942650.6A CN201810942650A CN109183615B CN 109183615 B CN109183615 B CN 109183615B CN 201810942650 A CN201810942650 A CN 201810942650A CN 109183615 B CN109183615 B CN 109183615B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/268—Composite concrete-metal
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Abstract
The invention discloses a multi-girder type steel-concrete combined continuous beam which comprises a girder main body, wherein the top end of the girder main body is connected with a bridge deck, the girder main body comprises a plurality of inverted T-shaped girders, the bottom plates of the girders are arranged at intervals along the longitudinal bridge direction, the web plates of the girders are arranged along the transverse bridge direction, and the web plates are provided with a groove with an upward opening; the two groups of sealing plate components are respectively arranged on two sides of the web plate along the longitudinal bridge direction and comprise two sealing plates respectively arranged on two sides of the groove; two sealing plates on two adjacent main beams are connected and form two rows arranged at intervals along the transverse bridge, the two rows of sealing plates, all bottom plates and all grooves are jointly surrounded to form a cavity with an upward opening and communicated with each other, and concrete is filled in the cavity.
Description
Technical Field
The invention relates to the field of bridge engineering, in particular to a multi-main-beam type steel-concrete combined continuous beam.
Background
With the acceleration of the urbanization process in China, the construction of municipal bridges is developed towards the goals of rapidness, greenness, environmental protection and friendliness, the basic requirements for realizing the goal are light weight, factory production, standardization, assembly and rapidness of bridge construction, and the multi-girder type continuous beam bridge with the steel-concrete composite beam is one of the optimal construction schemes for meeting the requirements.
At present, a multi-girder type steel-concrete combined continuous beam consists of a plurality of I-shaped beams, each I-shaped beam is transported to a site for installation after being manufactured in a factory in a slicing mode, and finally all the I-shaped beams are connected into a whole through a bridge deck formed by top-layer cast-in-place concrete. As shown in figure 1, a top plate 10 ', a web plate 11 ' and a top plate 12 ' of an I-beam 1 ' are manufactured in a piece by piece in a factory, then are transported to a site for assembly construction, and finally, the I-beams 1 ' are connected to form a continuous beam through a bridge deck 2 ' formed by casting concrete on the top layer of the top plate 10 '.
Because the continuous beam structure is only connected to the top layer of the i-beams 1 'in the longitudinal bridge direction through the bridge deck 2', the i-beams 1 'can bear partial pressure applied by the top layer, but cannot provide enough torsional rigidity, and ensure the longitudinal and transverse integrity and continuity between the i-beams 1'.
Disclosure of Invention
In view of the defects in the prior art, the invention aims to provide a multi-girder type steel-concrete combined continuous beam which provides enough torsional rigidity and ensures the integrity and continuity of the whole continuous beam in the longitudinal direction and the transverse direction.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
the utility model provides a many girder formula steel reinforced concrete combination continuous beam, includes the girder main part, the top of girder main part is connected with the decking, the girder main part includes:
the bottom plate of each main beam is arranged at intervals along the longitudinal bridge direction, the web plate of each main beam is arranged along the transverse bridge direction, and a groove with an upward opening is formed in the web plate;
the two groups of sealing plate components are respectively arranged on two sides of the web plate along the longitudinal bridge direction and comprise two sealing plates respectively arranged on two sides of the groove; two of the sealing plates on two adjacent main beams are connected with each other to form two rows arranged at intervals along the transverse bridge direction, the two rows of sealing plates, all the bottom plates and all the grooves are arranged in an enclosing mode together to form a cavity with an upward opening communicated with each other, and concrete is filled in the cavity.
On the basis of the technical scheme, one end of the sealing plate is connected with the web plate, and the other end of the sealing plate extends to be flush with the bottom plate, or the other end of the sealing plate extends to the outside of the edge of the bottom plate.
On the basis of the technical scheme, the main beam comprises two top plates, the two top plates are arranged at the top end of the web plate and are respectively positioned at two sides of the groove, and the top plates are connected with the bridge deck plate.
On the basis of the technical scheme, the main beam further comprises two concrete plates, the two concrete plates are respectively arranged on the two top plates and are positioned between the top plates and the bridge deck slab, and the concrete plates, the top plates and the bridge deck slab are connected through shear nails.
On the basis of the above technical scheme, the girder main part includes the reinforcement subassembly, the reinforcement subassembly includes:
the first steel bars penetrate between the two concrete slabs along the transverse bridge direction and are connected with the main steel bars of the bridge deck;
and the second steel bar is connected with the first steel bar along the longitudinal bridge direction.
On the basis of the technical scheme, the main beam main body comprises third reinforcing steel bars, the third reinforcing steel bars are arranged between the two rows of sealing plates, and the third reinforcing steel bars penetrate through all the webs along the longitudinal bridge direction.
On the basis of the technical scheme, the main beam main body further comprises a plurality of groups of rectangular closed steel bar assemblies, and the closed steel bar assemblies are arranged on the adjacent main beam along the longitudinal bridge direction at the joints between the two sealing plates.
On the basis of the technical scheme, the closed steel bar assembly comprises:
the first closed reinforcing steel bars are arranged along the transverse bridge direction, two sides and the bottom end of each first closed reinforcing steel bar are respectively connected with the third reinforcing steel bars, and the top ends of the first closed reinforcing steel bars are connected with the second reinforcing steel bars;
and the second closed reinforcing steel bar is arranged in the first closed reinforcing steel bar along the transverse bridge direction, and the top end and the bottom end of the second closed reinforcing steel bar are respectively connected with the top end and the bottom end of the first closed reinforcing steel bar.
Compared with the prior art, the invention has the advantages that:
(1) according to the multi-girder type steel-concrete combined continuous girder, the web plate is provided with the groove with the upward opening so as to establish the connection between the adjacent girder beams along the longitudinal bridge direction, the sealing plates on the two sides of the web plate can be used as temporary stiffening ribs for mounting the girder beams to enhance the stability of the girder beams, and can also be used as a template of a cavity to facilitate the pouring of concrete in the cavity, the girder beams are connected into a whole at the groove through the concrete, the top end of the girder main body is connected with the bridge deck, after the concrete is cooled and formed to reach the design strength, the thick concrete structure provides enough torsional strength, and the longitudinal and transverse integrity and continuity of the continuous girder are ensured.
(2) The sealing plates are flush with or exceed the edge of the bottom plate, the corresponding sealing plates on two adjacent main beams are connected in a welding mode, the main beams are connected into a whole, the sealing plates are connected in a welding mode and can serve as temporary stiffening ribs during installation of the main beams, stability of the main beams is enhanced, meanwhile, the sealing plates can serve as templates of the cavity, and concrete can be conveniently poured in the cavity.
(3) The two top plates are arranged on the two sides of the groove and connected with the bridge deck plate, and when the load of the continuous beam is large and the requirement on the torsion resistance of the continuous beam is high, the top plates can bear the force applied by the bridge deck plate and increase the torsion resistance of the continuous beam. The concrete slab, the top plate and the bridge deck are connected through the shear nails, concrete is cast on the top surface of the concrete slab in situ to form the bridge deck, and the concrete slab can bear the force applied by part of the bridge deck, so that the integral strength of the continuous beam is improved.
(4) The first reinforcing steel bars are arranged between the concrete slabs in a penetrating mode, the first reinforcing steel bars are connected with the main reinforcing steel bars of the bridge deck, the second reinforcing steel bars arranged in the cavity along the longitudinal bridge direction are connected with the first reinforcing steel bars to form a reinforcing assembly, the reinforcing assembly is used for connecting the main beam with the bridge deck, and the configuration of the reinforcing steel bars is determined according to the stress requirement of the continuous beam so as to provide enough structural rigidity and strength to guarantee the integrity and the stress requirement of the continuous beam.
(5) According to the invention, the third steel bars are arranged between the two rows of sealing plates and penetrate through all the webs along the longitudinal bridge direction, so that the connection between the adjacent main beams is enhanced by the third steel bars, the strength of concrete in the cavity is reinforced, the steel-concrete combined continuous beam is formed, and the safety and stability of the structure of the continuous beam are ensured.
(6) The plurality of groups of rectangular closed reinforcing steel bar assemblies are arranged at the joints of the sealing plates in a surrounding manner, so that stress on the joints of the main beams is borne, and the integral stability of the continuous beam is ensured.
Drawings
FIG. 1 is a schematic structural view of a conventional continuous beam;
FIG. 2 is a schematic structural diagram of a multi-girder type steel-concrete combined continuous beam in an embodiment of the invention;
FIG. 3 is a view A-A of FIG. 2;
FIG. 4 is a view B-B of FIG. 2;
fig. 5 is a schematic structural view of the closing plate.
In the figure: 1 ' -I-beam, 10 ' -top plate, 11 ' -web plate, 12 ' -top plate, 2 ' -bridge deck plate, 1-main beam body, 10-main beam, 100-bottom plate, 101-web plate, 102-groove, 103-top plate, 104-concrete plate, 11-closing plate assembly, 110-closing plate, 12-cavity, 13-concrete, 14-reinforcing assembly, 140-first steel bar, 141-second steel bar, 15-third steel bar, 16-closing steel bar assembly, 160-first closing steel bar, 161-second closing steel bar, 2-bridge deck plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Referring to fig. 2, 3 and 5, an embodiment of the present invention provides a multi-girder type steel-concrete composite continuous girder, including a girder main body 1, a deck slab 2 connected to a top end of the girder main body 1, the girder main body 1 including: the structure comprises a plurality of inverted T-shaped main beams 10, wherein the bottom plates 100 of the main beams 10 are arranged at intervals along the longitudinal bridge direction, the web plates 101 of the main beams 10 are arranged along the transverse bridge direction, the plate surfaces of the web plates 101 face the longitudinal bridge direction, and the web plates 101 are provided with grooves 102 with upward openings; the two groups of sealing plate assemblies 11 are respectively arranged on two sides of the web plate 101 along the longitudinal bridge direction, and each sealing plate assembly 11 comprises two sealing plates 110 respectively arranged on two sides of the groove 102; the two sealing plates 110 on the two adjacent main beams 10 are connected to form two rows arranged at intervals in the transverse bridge direction, the two sealing plates 110 on the two adjacent main beams 10 are that the two sealing plates 110 of one group of sealing plate assemblies 11 on any main beam 10 are correspondingly connected with the two sealing plates 110 of one group of sealing plate assemblies 11 on the other main beam 10 adjacent to the two sealing plates 110, and form two rows of sealing plates 110 arranged in the longitudinal bridge direction, the two rows of sealing plates 110, all the bottom plates 100 and all the grooves 102 jointly enclose and form a cavity 12 with an upward opening and communication, and the cavity 12 is filled with concrete 13. In order to establish the connection between the adjacent main beams 10 along the longitudinal bridge direction, the grooves 102 with upward openings are formed in the web plate 101, the sealing plate assemblies 11 on the two sides of the web plate 101 can be used as temporary stiffening ribs when the main beams 10 are installed, the stability of the main beams 10 is enhanced, and can also be used as templates for forming the cavity 12, concrete 13 is conveniently poured in the cavity 12, the main beams 10 are connected into a whole at the grooves 102 through the concrete 13, the top end of the main beam main body 1 is connected with the bridge deck 2, after the concrete 13 is cooled and formed to reach the design strength, the thick concrete 13 structure provides enough torsional strength, and the longitudinal and transverse integrity and continuity of the continuous beam are ensured.
Referring to fig. 5, as an alternative embodiment, the cover plate 110 is connected to the web 101 at one end and extends flush with the base plate 100 at the other end or extends beyond the edge of the base plate 100 at the other end. The shrouding links to each other with the shrouding that corresponds on the two adjacent girders, connects into whole between the shrouding that corresponds with the bottom plate parallel and level or surpass the border of bottom plate, and the shrouding welding links to each other can regard as the interim stiffening rib when the girder installation, strengthens the stability of girder, also can regard as the template of cavity simultaneously, conveniently pours the concrete in the cavity.
Referring to fig. 3, as an alternative embodiment, the main girder 10 includes two top plates 103, two top plates 103 are disposed at the top end of the web 101 and located at both sides of the groove 102, respectively, and the top plates 103 are connected to the bridge deck 2. The main girder 10 further comprises two concrete plates 104, the two concrete plates 104 are respectively arranged on the two top plates 103 and are positioned between the top plates 103 and the bridge deck 2, and the concrete plates 104, the top plates 103 and the bridge deck 2 are connected through shear pins. When the load of the continuous beam is large and the requirement for the torsion resistance of the continuous beam is high, the top plate 103 can bear the force applied by the deck slab 2 and increase the torsion resistance of the continuous beam. The top plate 103, the web plate 101 and the bottom plate 100 of the main beam 10 are respectively formed by welding after being manufactured, the web plate 101 is formed by welding two half U-shaped web plate units, and the groove 102 is formed in the middle after welding, so that the manufacture, later transportation and site construction of the web plate 101 in a factory are facilitated. After the main beam 10 is welded, shear pins are welded to the web plate 101, the cover plate 110 and the base plate 100 to ensure a reliable connection with the concrete in the cavity 12.
Referring to fig. 4, as a preferred embodiment, the girder body 1 includes a reinforcement assembly 14, and the reinforcement assembly 14 includes: the first reinforcing steel bars 140 penetrate between the two concrete slabs 104 along the transverse bridge direction, and the first reinforcing steel bars 140 are connected with the main reinforcing steel bars of the bridge deck 2; and a second reinforcing bar 141, the second reinforcing bar 141 being connected to the first reinforcing bar 140 in the longitudinal bridge direction. First reinforcing steel bars 140 penetrate between the concrete slabs 104, the first reinforcing steel bars 140 are connected with main reinforcing steel bars of the bridge deck 2, the main reinforcing steel bars of the bridge deck 2 are reinforcing steel bars arranged along the longitudinal bridge direction, second reinforcing steel bars 141 arranged in the cavity 12 along the longitudinal bridge direction are connected with the first reinforcing steel bars 140 to form a reinforcing assembly 14, the reinforcing assembly 14 is used for connecting the main beam 10 with the bridge deck 2 to form a whole body at the top end of the main beam 10, and the configuration of the reinforcing steel bars is determined according to the stress requirement of the continuous beam so as to provide enough structural rigidity and strength to ensure the integrity and the stress requirement of the continuous beam.
Referring to fig. 4, as a preferred embodiment, the main beam body 1 includes a third reinforcing bar 15, the third reinforcing bar 15 is disposed between two rows of the sealing plates 110, and the third reinforcing bar 15 penetrates all the webs 101 along the longitudinal bridge direction. The third reinforcing steel bars 15 penetrate through the two sides and the bottom of the groove 102, the connection between the adjacent main beams 10 is enhanced through the third reinforcing steel bars 15, the strength of the concrete 13 in the cavity 12 is reinforced, the steel-concrete combined continuous beam is formed, and the safety and the stability of the structure of the continuous beam are ensured.
Referring to fig. 4, as a preferred embodiment, the main girder body 1 further includes a plurality of rectangular closing bar assemblies 16, and the closing bar assemblies 16 are disposed at the junctions between the two closing plates 110 of the adjacent main girders 10 along the longitudinal bridge direction. The closed reinforcing steel bar assembly 16 can bear the stress of the joint of each main beam 10, and the integral stability of the continuous beam is ensured. The closure bar assembly 16 includes: first closed reinforcing bars 160 arranged in the transverse bridge direction, both sides and the bottom ends of the first closed reinforcing bars 160 being connected to the third reinforcing bars 15, respectively, and the top ends thereof being connected to the second reinforcing bars 141; and a second closing bar 161 installed in the first closing bar 160 along the transverse bridge direction, wherein the top and bottom ends of the second closing bar 161 are connected to the top and bottom ends of the first closing bar 160, respectively. The first closed reinforcing steel bars 160 and the second closed reinforcing steel bars 161 are arranged along the transverse bridge direction, and the transverse and longitudinal stress strength of the continuous beam is enhanced together with the third reinforcing steel bars 15 which are arranged longitudinally, so that the stability of the continuous beam structure is ensured.
The method comprises the following specific steps:
1. according to the overall structure of the continuous beam and the stress characteristics of the main beam body 1, the width of the cavity 12 formed by the two rows of cover plates 110, the bottom plates 100 of all the main beams 10 and all the grooves 102, and the specifications, the number and the steel bar spacing of the first steel bars 140, the second steel bars 141, the third steel bars 15 and the closed steel bar assemblies 16 to be configured are determined.
2. The top plate 103, the web plate 101 and the bottom plate 100 of the girder 10 are manufactured in a factory respectively, the length of the web plate 101 and the length of the bottom plate 100 are equal to the span of the girder 10, the length of the top plate 103 is the span of the girder 10 minus the width of the cavity 12, round holes or oblong holes are formed in the corresponding positions of the web plate 101 in the cavity 12 according to the diameter and the distance arrangement of the first reinforcing steel bars 140 and the second reinforcing steel bars 141, and the diameter of the round holes is preferably larger than the diameter of the reinforcing steel bars by more than 10mm, so that the reinforcing steel bars can.
3. The sealing plate assemblies 11 are welded on two sides of the web 101 according to the width of the cavity 12, the width of each sealing plate 110 is half of the distance between the two main beams 10, the height of the sealing plate 110 is the same as that of the web 101, and the shear pins are welded on the sections of the sealing plate 110 and the base plate 100 in the cavity 12.
4. Each girder 10 is erected and placed on a temporary fulcrum which is located right below the sealing plate 110, and then concrete is poured on the top layer to form the deck slab 2. In a simple supporting state, the steel beam bottom plate 100, the web plate 101 and the sealing plate 110 are all connected by welding.
5. A first rebar 140, a second rebar 141, a third rebar 15, and a closure rebar assembly 16 within the mounting cavity 12.
6. The first reinforcing steel bars 140 and the main reinforcing steel bars of the bridge deck 2 are welded one by one to the main reinforcing steel bars of the bridge deck 2 and are arranged along the longitudinal bridge direction.
7. And (3) installing a bottom die and a side die of the cavity 12, and pouring concrete 13 in the cavity 12.
8. And after the concrete 13 in the cavity 12 reaches the designed strength, installing the permanent support, dismantling the temporary support, and then performing subsequent construction.
The present invention is not limited to the above-described embodiments, and it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and such modifications and improvements are also considered to be within the scope of the present invention. Those not described in detail in this specification are within the skill of the art.
Claims (8)
1. The utility model provides a many girder formula steel reinforced concrete combination continuous beam, includes girder main part (1), the top of girder main part (1) is connected with decking (2), its characterized in that, girder main part (1) includes:
the structure comprises a plurality of inverted T-shaped main beams (10), wherein a bottom plate (100) of each main beam (10) is arranged at intervals along a longitudinal bridge direction, a web plate (101) of each main beam (10) is arranged along a transverse bridge direction, and a groove (102) with an upward opening is formed in the web plate (101);
the two groups of sealing plate assemblies (11) are respectively arranged on two sides of the web plate (101) along the longitudinal bridge direction, and each sealing plate assembly (11) comprises two sealing plates (110) respectively arranged on two sides of the groove (102); two sealing plates (110) on two adjacent main beams (10) are connected to form two rows arranged at intervals along the transverse bridge direction, the two rows of sealing plates (110), all bottom plates (100) and all grooves (102) are jointly surrounded to form a cavity (12) with an upward opening and communication, and concrete (13) is filled in the cavity (12).
2. The multi-girder steel-concrete composite continuous beam as claimed in claim 1, wherein: one end of the sealing plate (110) is connected with the web plate (101), and the other end of the sealing plate extends to be flush with the bottom plate (100).
3. The multi-girder steel-concrete composite continuous beam as claimed in claim 1, wherein: the girder (10) comprises two top plates (103), the two top plates (103) are arranged at the top end of the web plate (101) and are respectively positioned at two sides of the groove (102), and the top plates (103) are connected with the bridge deck (2).
4. A multi-girder steel-concrete composite continuous beam as claimed in claim 3, wherein: the main beam (10) further comprises two concrete plates (104), the two concrete plates (104) are respectively arranged on the two top plates (103) and are located between the top plates (103) and the bridge deck (2), and the concrete plates (104), the top plates (103) and the bridge deck (2) are connected through shear nails.
5. A multi-girder steel-concrete composite continuous beam according to claim 4, characterized in that said girder body (1) comprises a reinforcement assembly (14), said reinforcement assembly (14) comprising:
the first reinforcing steel bars (140) are arranged between the two concrete plates (104) in a transverse bridge direction in a penetrating mode, and the first reinforcing steel bars (140) are connected with main reinforcing steel bars of the bridge deck (2);
a second reinforcing bar (141), the second reinforcing bar (141) being connected to the first reinforcing bar (140) in a longitudinal bridge direction.
6. The multi-girder steel-concrete composite continuous beam as claimed in claim 5, wherein: girder main part (1) includes third reinforcing bar (15), third reinforcing bar (15) are located two rows between shrouding (110), just third reinforcing bar (15) are along the longitudinal bridge to wearing to locate on all webs (101).
7. The multi-girder steel-concrete composite continuous beam as claimed in claim 6, wherein: the main beam main body (1) further comprises a plurality of groups of rectangular closed steel bar assemblies (16), and the closed steel bar assemblies (16) are arranged at the joints between the two adjacent sealing plates (110) on the main beam (10) along the longitudinal bridge direction.
8. A multi-girder steel and concrete composite continuous beam as claimed in claim 7, wherein said closed rebar assembly (16) comprises:
the first closed reinforcing steel bars (160) are arranged along the transverse bridge direction, two sides and the bottom end of each first closed reinforcing steel bar (160) are respectively connected with the third reinforcing steel bars (15), and the top end of each first closed reinforcing steel bar is connected with the second reinforcing steel bar (141);
and the second closed reinforcing steel bar (161) is arranged in the first closed reinforcing steel bar (160) along the transverse bridge direction, and the top end and the bottom end of the second closed reinforcing steel bar (161) are respectively connected with the top end and the bottom end of the first closed reinforcing steel bar (160).
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| CN201810942650.6A CN109183615B (en) | 2018-08-17 | 2018-08-17 | Multi-main-beam type steel-concrete combined continuous beam |
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| CN201810942650.6A CN109183615B (en) | 2018-08-17 | 2018-08-17 | Multi-main-beam type steel-concrete combined continuous beam |
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| CN109183615B true CN109183615B (en) | 2020-05-26 |
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| CN112962417A (en) * | 2021-02-25 | 2021-06-15 | 四川省公路规划勘察设计研究院有限公司 | Continuous structure suitable for bent slope and inclined steel plate girder bridge and construction method thereof |
| CN114687448B (en) * | 2022-06-02 | 2022-09-02 | 清华大学 | Transfer beam, building structure and construction method |
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| CN205205639U (en) * | 2015-12-04 | 2016-05-04 | 郑州大学 | Y shape steel member of combination beam |
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| CN108221634A (en) * | 2018-03-16 | 2018-06-29 | 中交高新科技产业发展有限公司 | The Wavelike steel webplate I-shaped composite beam bridge of maximum assembling |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20070001410A (en) * | 2005-06-29 | 2007-01-04 | (주)한맥기술 | Mounting structure of steel cross-beam in multi-girder concrete bridge and its construction method |
| CN106087745A (en) * | 2012-10-17 | 2016-11-09 | 上海市政工程设计研究总院（集团）有限公司 | A kind of multiple-piece composite beam bridge top and the bottom monolithic construction construction method |
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| CN108221634A (en) * | 2018-03-16 | 2018-06-29 | 中交高新科技产业发展有限公司 | The Wavelike steel webplate I-shaped composite beam bridge of maximum assembling |
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