CN114808694A - Combined beam bridge and construction method - Google Patents
Combined beam bridge and construction method Download PDFInfo
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- CN114808694A CN114808694A CN202210747964.7A CN202210747964A CN114808694A CN 114808694 A CN114808694 A CN 114808694A CN 202210747964 A CN202210747964 A CN 202210747964A CN 114808694 A CN114808694 A CN 114808694A
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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
- E01D19/00—Structural or constructional details of 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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
Abstract
The invention discloses a combined beam bridge and a construction method, wherein the combined beam bridge comprises a bridge deck structure and pier capping beams, and the bridge deck structure is formed by connecting a plurality of steel structure combined beams; the bridge deck structure is connected with the pier capping beams through a supporting system, and the supporting system comprises a simply supported bridge deck continuous supporting structure and a bridge structure continuous supporting structure; the steel structure combination beam comprises a bridge deck plate and a steel structure which are connected with each other, the steel structure comprises a lower flange plate and a web plate, and the web plate is directly connected with the bridge deck plate through a mortise and tenon structure; and the lower flange plate and the web plate are mutually connected through welding. The combined beam bridge has the advantages of small size of the bridge deck, low self weight, strong spanning capability and light weight, can reduce the construction operation on site to the maximum extent, realizes industrial production and rapid assembly construction, and simultaneously reduces the manufacturing cost of the combined beam, improves the rigidity of the joint and the efficiency of transferring shearing force by optimizing the steel structure combined beam.
Description
Technical Field
The invention relates to the field of bridge design, in particular to a combined beam bridge and a construction method.
Background
The traditional composite beam structure is formed by combining a steel structure and a concrete structure, the steel structure is formed by an upper flange, a web plate and a lower flange, the steel upper flange and the concrete structure are connected through a shear key and transmit force, a steel structure tension mode is formed, the concrete structure is in a compression combined stress mode, and the stress efficiency of the steel structure and the concrete structure is improved. The composite structure stress is clear and definite, compares concrete structure, and the dead weight is littleer, and the bridge beam height of the same span can be accomplished littleer, has bigger application space in the limited region of beam height, and composite structure is more slender, has better view effect.
The steel beam top plate and the concrete bridge deck of the combined structure are combined by extending shear nails welded on the upper flange of the steel beam into the concrete bridge deck, so that the steel beam top plate and the concrete bridge deck are integrally stressed, and the performances of two materials of steel and concrete are fully exerted. The steel beam generally comprises an upper flange, a web plate and a lower flange, and the steel consumption accounts for about 20%, 40% and 40% respectively. The size and material consumption of the lower flange are generally controlled by the tensile stress under the bending action, the size and material consumption of the web are generally controlled by the stability of the web, and the upper flange is provided with a strong concrete bridge deck plate for providing the compression resistance, so that the main function of the upper flange is to meet the arrangement requirement of the shear nails and is determined by related structures.
The existing composite beam structure mainly has the following technical problems: (1) the steel structure material is not made to the full use, and the mechanical property of the steel structure material is fully exerted; (2) the construction quality of a welding seam between the shear nail and the upper flange plate of the steel beam is difficult to control, and under the long-term action of load, the welding seam has the risk of fatigue failure, so that structural failure engineering is caused; (3) practice shows that steel structures account for the main part of the construction cost of the composite beam, the construction cost of the composite beam is usually 20-30% higher than that of a conventional concrete beam, and the popularization of the steel-concrete composite structure is extremely unfavorable.
Disclosure of Invention
The invention provides a combined beam bridge and a construction method, which are used for solving the technical problems that the existing combined beam structure is high in cost and unreasonable in stress and has hidden troubles in a connection mode with a bridge deck.
In order to solve the technical problems, the invention adopts the following technical scheme:
a combined beam bridge comprises a bridge deck structure and pier capping beams, wherein the bridge deck structure is formed by connecting a plurality of steel structure combined beams; the bridge deck structure is connected with the pier capping beams through a supporting system, and the supporting system comprises a simply supported bridge deck continuous supporting structure and a bridge structure continuous supporting structure; the steel structure combination beam comprises a bridge deck plate and a steel structure which are connected with each other, the steel structure comprises a lower flange plate and a web plate, and the web plate is directly connected with the bridge deck plate through a mortise and tenon structure; and the lower flange plate and the web plate are mutually connected through welding.
The design idea of the technical scheme is that an inventor discovers that an upper flange plate of a composite beam is positioned in a compression area and mainly plays a role in transferring stress between composite structures after analyzing the stress condition of a steel structure composite beam of the composite beam bridge, and the steel structure has the advantage of bearing tensile force, so that the steel structure only needs to meet the arrangement requirement of shear nails; simultaneously, integrated into one piece's shaped steel height has the restriction, is more suitable for to the higher condition welded steel construction of roof beam height.
As a further improvement of the above technical solution:
the mortise and tenon structure is MCL type; the height of tenon fourth of twelve earthly branches structure is 40~100mm, and the interval between the adjacent tenon fourth of twelve earthly branches structure is 100~300 mm. The MCL type is a Modified helical line (Modified helical line), and the shape of the Modified helical line is shown in the text of' Modified helical line type combined pin shear connector bearing capacity test research [ J ]. bridge construction, 2020,50(02):43-48.
The bridge deck is provided with longitudinal steel bars and stirrups perpendicular to the longitudinal steel bars, the stirrups vertically penetrate through the part, located on the steel structure area, of the tenon-and-mortise structure, and the longitudinal steel bars are located in the encircling range of the stirrups. On one hand, the stirrups participate in stress as a shear part, on the other hand, the stirrups penetrate through the steel web mortise-tenon structure and surround the longitudinal steel bars, so that the combination effect between the mortise-tenon structure and the longitudinal steel bars is improved, the steel web and the bridge deck form a more compact whole, the integral rigidity and other mechanical properties of the composite beam are improved, and the force transfer inside the composite beam is more definite.
The bridge deck is provided with the thickening bearing at the junction of bridge deck and web. The bellied reinforced structure that the thickening bearing is the decking and increases the formation with web junction thickness promptly, the stable connection of edge of a wing and decking can be guaranteed in the setting of thickening bearing to effective transmission shear force.
The height of thickening bearing is 150~200 mm.
The steel structure in the steel structure composite beam is two pieces; the bridge deck and the steel structure are in a pi shape.
The bridge deck is made of common concrete materials or UHPC materials, when the common concrete materials are adopted, the thickness of the bridge deck plate is 200-250 mm, and when the UHPC materials are adopted, the thickness of the bridge deck plate is 100-120 mm. The UHPC material has excellent material performance, can obviously reduce the size of a bridge deck, reduce the self weight of the structure, increase the spanning capability of a combined structure and lighten the structure.
In the transverse direction of the bridge, the adjacent steel structure composite beams are mutually connected through a longitudinal wet joint; in the longitudinal direction of the bridge, the adjacent steel structure composite beams are connected with each other by pouring bridge deck beams or by arranging a bridge deck continuous structure.
The vertical wet joint is the T shape structure of uniform thickness or thickened type structure, and when vertical wet joint was the T shape structure of uniform thickness, the width was 380~420mm, when vertical wet joint was the thickened type structure, the width was 180~220mm, and the thickening height is 150~180 mm. The T-shaped structure with the same thickness is T-shaped and consists of a transverse part and a vertical part, and the thickness of each part of the vertical part is equal along the vertical direction; the thickened structure is in a T-like shape and also comprises a transverse part and a vertical part, the middle section of the vertical part is thickened, and the thickness of the thickened structure is larger than that of the upper end and the lower end. The longitudinal wet seam of the above shape and configuration can improve the load bearing capacity and crack resistance at the seam.
Based on the unified technical concept, the invention also provides a construction method of the combined beam bridge, which comprises the following steps:
s1, cutting steel to obtain the web plate;
s2, welding the web plate and the lower flange plate to form a T-shaped structure;
s3, pouring and maintaining to form the steel structure combination beam;
s4, hoisting the steel structure combination beam to a pier capping beam, and pouring the longitudinal wet joint to realize the connection of the steel structure combination beam in the transverse direction of the bridge;
and S5, pouring the fulcrum beam or arranging a bridge deck continuous structure to realize the connection of the steel structure composite beam in the longitudinal direction of the bridge, namely finishing the construction of the composite beam bridge.
Compared with the prior art, the invention has the advantages that:
the combined beam bridge has the advantages of small size of the bridge deck, low self weight, strong spanning capability and light weight, can adopt a simply-supported structure and a continuous bridge deck structure besides a continuous structure mode to form a continuous beam structure, can reduce the field construction operation to the maximum extent, realizes industrial production and rapid assembly construction, optimizes the structure of the steel structure combined beam, exerts the advantage of the steel structure in the aspect of bearing tension, saves the upper flange plate positioned in a compression area by directly connecting the web plate with the bridge deck, avoids the waste of the bearing performance of the steel structure, obviously reduces the manufacturing cost of the combined beam and improves the economy of the combined beam; meanwhile, through optimization of the connection mode between the web plate and the bridge deck plate, the rigidity of the connection position and the efficiency of transferring shearing force are improved, the web plate and the bridge deck plate form a tighter whole, the force transfer of the composite beam is more definite, and in addition, the risk of fatigue damage of the shear nails, the upper flange plate and the welding seam of the web plate connection position can be avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic cross-sectional view of a steel structural composite girder according to example 1 in a transverse direction of a bridge;
FIG. 2 is a schematic cross-sectional view of the steel structural composite girder according to example 2 in a transverse direction of a bridge;
FIG. 3 is a schematic sectional view of the steel structural composite girder of example 1 in a longitudinal direction of a bridge;
fig. 4 is a schematic view of the tenon-and-mortise structure connection between the web and the bridge deck slab of the steel structure composite beam of embodiment 1;
FIG. 5 is a schematic view of a bridge type of the composite girder bridge of embodiment 1;
FIG. 6 is a sectional assembly view of the composite girder bridge of embodiment 1 in the longitudinal direction of the bridge;
FIG. 7 is a sectional assembly view of the composite girder bridge of embodiment 2 in the longitudinal direction of the bridge;
fig. 8 is a sectional assembly view of the composite girder bridge of embodiment 3 in the longitudinal direction of the bridge.
Illustration of the drawings:
1. a bridge deck; 2. a lower flange plate; 3. a web; 4. a mortise and tenon joint structure; 5. transverse reinforcing steel bars; 6. thickening and supporting; 7. a pier capping beam; 8. a bridge deck structure; 9. a longitudinal wet seam; 10. a continuous support structure of a simply supported bridge deck; 11. a bridge structure continuous support structure; 12. a bridge deck beam; 13. a bridge deck continuous structure; 14. hooping; 15. longitudinal reinforcing steel bars; 41. a tenon structure; 42. and (4) a mortise structure.
Detailed Description
The present invention will be described in further detail with reference to specific examples.
Example 1:
as shown in fig. 1 and 3, the steel-structured composite beam of the present embodiment includes a bridge deck 1 and two steel structures connected to the bridge deck 1, wherein the bridge deck 1 and the steel structures form a "pi" structure; the steel structure comprises a lower flange plate 2 and a web plate 3, the lower flange plate 2 is connected with the web plate 3 through welding, the web plate 3 is directly connected with the bridge deck plate 1 through a tenon-and-mortise structure 4, and a thickening bearing 6 is arranged at the joint; the mortise and tenon structure 4 is as shown in fig. 4, and includes mortise and tenon structure 41 on the web 3 and mortise and tenon structure 42 on the bridge deck slab 1, and is provided with two layers of transverse steel bars 5 and one layer of longitudinal steel bars 15, and stirrup 14 perpendicular to the longitudinal steel bars 15, and stirrup 14 perpendicularly passes the part (i.e. mortise and tenon structure 41) of mortise and tenon structure 4 located on the steel structure area, and part of longitudinal steel bars 15 is located the enclosure scope of stirrup 14.
In the embodiment, the mortise and tenon structure 4 is in an MCL shape, the opening is formed by a convolution curve formed by a plurality of sections of arcs with different radiuses, the working path of the web 3 during cutting can be guaranteed to be smooth, and the cutting work is finished without stopping to change the cutting path; the height of the tenon-and-mortise structures 4 is 30mm, and the distance between every two adjacent tenon-and-mortise structures 4 is 80 mm.
In this embodiment, the height of the thickened supporter 6 is 200 mm.
In this embodiment, the deck slab 1 is made of UHPC material, and the thickness of the deck slab 1 is 120 mm.
As shown in fig. 5 and 6, the composite girder bridge of the present embodiment includes a bridge deck structure 8 and pier capping beams 7, wherein the bridge deck structure 8 is formed by connecting a plurality of steel-structured composite girders of the present embodiment; the bridge deck structure 8 and the pier capping beams 7 are connected through a support system, and the support system is a bridge structure continuous support structure 11.
In this embodiment, in the horizontal direction of the bridge, the mutual connection is realized through vertical wet joint 9 between the adjacent steel structure combination roof beams, in the longitudinal direction of the bridge, the mutual connection is realized through pouring bridge deck crossbeam 12 and forming continuous combination roof beam structure between the adjacent steel structure combination roof beams, and bridge deck crossbeam 12 is the UHPC roof beam, and bridge deck crossbeam 12 is inside to run through and is provided with the reinforcing bar.
In this embodiment, the longitudinal wet seam 9 is of a thickened type structure, the width of the seam is 180mm, and the height of the thickened part of the seam is 150 mm.
The construction method of the combined beam bridge comprises the following steps:
(1) cutting the steel to obtain a web plate 3;
(2) welding the web 3 and the lower flange plate 2 to form a T-shaped structure;
(3) pouring and maintaining to form the steel structure composite beam;
(4) hoisting the steel structure combination beam to the pier capping beam 7, pouring the longitudinal wet joint 9, and pouring the bridge deck cross beam 12 to form a continuous combination beam structure so as to realize the connection of the steel structure combination beam;
(5) and pouring the anti-collision guardrail, and constructing the bridge deck pavement and other accessory facilities to finish the construction of the combined beam bridge.
Example 2:
as shown in fig. 2, the steel-structure composite beam of the present embodiment includes a bridge deck 1 and two steel structures connected to the bridge deck 1, wherein the bridge deck 1 and the steel structures form a "pi" structure; the steel structure comprises a lower flange plate 2 and a web plate 3, the lower flange plate 2 is connected with the web plate 3 through welding, the web plate 3 is directly connected with the bridge deck plate 1 through a tenon-and-mortise structure 4, and a thickening bearing 6 is arranged at the joint; the mortise and tenon structure 4 is as shown in fig. 4, and includes mortise structure 41 on the web 3 and mortise structure 42 on the bridge deck plate 1, two layers of transverse steel bars 5 and two layers of longitudinal steel bars 15 are arranged in the bridge deck plate 1, and stirrups 14 perpendicular to the longitudinal steel bars 15 are arranged, the stirrups 14 perpendicularly penetrate through the part (namely the mortise structure 41) of the mortise and tenon structure 4 located on the steel structure area, and part of the longitudinal steel bars 15 are located in the enclosing range of the stirrups 14.
In the embodiment, the mortise and tenon structure 4 is in an MCL shape, the opening is formed by a convolution curve formed by a plurality of sections of arcs with different radiuses, the working path of the web 3 during cutting can be guaranteed to be smooth, and the cutting work is finished without stopping to change the cutting path; the height of the tenon-and-mortise structures 4 is 50mm, and the distance between every two adjacent tenon-and-mortise structures 4 is 120 mm.
In this embodiment, the height of the thickened holder 6 is 150 mm.
In this embodiment, the bridge deck 1 is made of a common concrete material, and the thickness of the bridge deck 1 is 250 mm.
As shown in fig. 7, the composite girder bridge of this embodiment includes a bridge deck structure 8 and pier capping girders 7, wherein the bridge deck structure 8 is formed by connecting a plurality of steel structure composite girders of this embodiment; the bridge deck structure 8 and the pier capping beams 7 are connected through a support system, and the support system is a bridge structure continuous support structure 11.
In this embodiment, horizontal at the bridge, realize interconnect through vertical wet joint 9 between the adjacent steel construction combination roof beam, in the bridge vertical, form continuous combination roof beam structure through pouring bridge floor crossbeam 12 between the adjacent steel construction combination roof beam and realize interconnect, and bridge floor crossbeam 12 is ordinary concrete beam, and bridge floor crossbeam 12 is inside to run through to be provided with the reinforcing bar.
In this embodiment, the longitudinal wet seam 9 is of uniform thickness T-shaped construction and has a seam width of 400 mm.
The construction method of the combined beam bridge comprises the following steps:
(1) cutting the steel to obtain a web plate 3;
(2) welding the web 3 and the lower flange plate 2 to form a T-shaped structure;
(3) pouring and maintaining to form the steel structure composite beam;
(4) hoisting the steel structure combination beam to the pier capping beam 7, pouring the longitudinal wet joint 9, and pouring the bridge deck beam 12 to realize the connection of the steel structure combination beam;
(5) and pouring the anti-collision guardrail, and constructing bridge deck pavement and other accessory facilities to complete the construction of the combined beam bridge.
Example 3:
the steel structure composite beam comprises a bridge deck 1 and two steel structures connected with the bridge deck 1, wherein a pi-shaped structure is formed between the bridge deck 1 and the steel structures; the steel structure comprises a lower flange plate 2 and a web plate 3, the lower flange plate 2 is connected with the web plate 3 through welding, the web plate 3 is directly connected with the bridge deck plate 1 through a tenon-and-mortise structure 4, and a thickening bearing 6 is arranged at the joint; the mortise and tenon structure 4 is as shown in fig. 4, and includes a mortise structure 41 on the web 3 and a mortise structure 42 on the bridge deck 1, two layers of transverse steel bars 5 and one layer of longitudinal steel bars 15 are arranged in the bridge deck 1, and stirrups 14 perpendicular to the longitudinal steel bars 15 are arranged in the bridge deck, the stirrups 14 perpendicularly penetrate through the part (namely the mortise structure 41) of the mortise and tenon structure 4 located on the steel structure area, and part of the longitudinal steel bars 15 are located in the enclosing range of the stirrups 14.
In the embodiment, the mortise and tenon structure 4 is in an MCL shape, the opening is formed by a convolution curve formed by a plurality of sections of arcs with different radiuses, the working path of the web 3 during cutting can be guaranteed to be smooth, and the cutting work is finished without stopping to change the cutting path; the height of the tenon-and-mortise structures 4 is 40mm, and the distance between every two adjacent tenon-and-mortise structures 4 is 100 mm.
In this embodiment, the height of the thickened holder 6 is 150 mm.
In this embodiment, the deck slab 1 is made of UHPC material, and the thickness of the deck slab 1 is 100 mm.
As shown in fig. 8, the composite girder bridge of this embodiment includes a bridge deck structure 8 and pier capping beams 7, wherein the bridge deck structure 8 is formed by connecting a plurality of steel-structure composite girders of this embodiment; the bridge deck structure 8 and the pier capping beams 7 are connected through a supporting system, and the supporting system is a simply supported bridge deck continuous supporting structure 10.
In the embodiment, the adjacent steel structure composite beams are connected with each other through a longitudinal wet joint 9 in the transverse direction of the bridge, and the adjacent steel structure composite beams are connected with each other through a pouring bridge deck continuous structure 13 in the longitudinal direction of the bridge.
In this embodiment, the longitudinal wet seam 9 is of a thickened type structure, the width of the seam is 220mm, and the height of the thickened part of the seam is 180 mm.
The construction method of the combined beam bridge comprises the following steps:
(1) cutting the steel to obtain a web plate 3;
(2) welding the web 3 and the lower flange plate 2 to form a T-shaped structure;
(3) pouring and maintaining to form the steel structure composite beam;
(4) hoisting the steel structure combination beam to the pier capping beam 7, pouring a longitudinal wet joint 9, arranging a bridge deck continuous structure 13 to be matched with a supporting system to form a simple structure, and realizing the connection of the steel structure combination beam;
(5) and pouring the anti-collision guardrail, and constructing the bridge deck pavement and other accessory facilities to finish the construction of the combined beam bridge.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-described embodiments. Modifications and variations that may occur to those skilled in the art without departing from the spirit and scope of the invention are to be considered as within the scope of the invention.
Claims (10)
1. A combined beam bridge is characterized by comprising a bridge deck structure (8) and pier capping beams (7), wherein the bridge deck structure (8) is formed by connecting a plurality of steel structure combined beams; the bridge deck structure (8) is connected with the pier capping beams (7) through a supporting system, and the supporting system comprises a simply supported bridge deck continuous supporting structure (10) and a bridge structure continuous supporting structure (11); the steel structure combination beam comprises a bridge deck plate (1) and a steel structure which are connected with each other, the steel structure comprises a lower flange plate (2) and a web plate (3), and the web plate (3) is directly connected with the bridge deck plate (1) through a mortise and tenon structure (4); the lower flange plate (2) and the web plate (3) are connected with each other through welding.
2. -the composite girder bridge according to claim 1, characterized in that said mortise and tenon structure (4) is of the MCL type; the height of the tenon-and-mortise structures (4) is 40-100 mm, and the distance between every two adjacent tenon-and-mortise structures (4) is 100-300 mm.
3. The composite beam bridge according to claim 1, wherein longitudinal steel bars (15) and stirrups (14) perpendicular to the longitudinal steel bars (15) are arranged in the bridge deck (1), the stirrups (14) vertically penetrate through the part, located on the steel structure area, of the mortise and tenon structure (4), and the longitudinal steel bars (15) are located in the enclosing range of the stirrups (14).
4. A composite girder bridge according to claim 1, wherein the deck slab (1) is provided with a thickening brace (6) at the junction of the deck slab (1) and the web (3).
5. The composite beam bridge according to claim 4, wherein the height of the thickened bearer (6) is 150-200 mm.
6. The composite girder bridge according to claim 1, wherein the steel structure in the steel-structured composite girder is two-piece; the bridge deck (1) and the two steel structures are in a pi shape.
7. The composite girder bridge according to claim 1, wherein the deck slab (1) is made of a general concrete material or a UHPC material, and the deck slab (1) has a thickness of 200-250 mm when the general concrete material is used and 150-200 mm when the UHPC material is used.
8. A composite girder bridge according to any one of claims 1 to 7, wherein the adjacent steel structural composite girders are interconnected by longitudinal wet joints (9) in the transverse direction of the bridge; in the longitudinal direction of the bridge, the adjacent steel structure composite beams are connected with each other by pouring bridge deck cross beams (12) or by arranging a bridge deck continuous structure (13).
9. The composite beam bridge according to claim 8, wherein the longitudinal wet joint (9) is of an equal thickness T-shaped structure or a thickened structure, the width of the longitudinal wet joint (9) is 380-420 mm when the longitudinal wet joint is of an equal thickness T-shaped structure, the width of the longitudinal wet joint (9) is 180-220 mm when the longitudinal wet joint is of a thickened structure, and the thickened height of the longitudinal wet joint is 150-180 mm.
10. A construction method of the composite girder bridge according to claim 8 or 9, comprising the steps of:
s1, cutting steel to obtain the web plate (3);
s2, welding the web (3) and the lower flange plate (2) to form a T-shaped structure;
s3, pouring and maintaining to form the steel structure composite beam;
s4, hoisting the steel structure combination beam to a pier capping beam (7), and pouring the longitudinal wet joint (9);
s5, pouring the bridge deck beam (12) or arranging the bridge deck continuous structure (13) to realize the connection of the steel structure composite beam, namely completing the construction of the composite beam bridge.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115233529A (en) * | 2022-09-23 | 2022-10-25 | 湖南省交通规划勘察设计院有限公司 | Medium-span steel-concrete composite beam, construction method and medium-span bridge |
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| 程震宇等: "UHPC中MCL形组合销的抗剪性能", 《中国公路学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115233529A (en) * | 2022-09-23 | 2022-10-25 | 湖南省交通规划勘察设计院有限公司 | Medium-span steel-concrete composite beam, construction method and medium-span bridge |
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Application publication date: 20220729 |