CN112144371A - Cable-stayed suspension cable cooperation system bridge - Google Patents
Cable-stayed suspension cable cooperation system bridge Download PDFInfo
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- CN112144371A CN112144371A CN202011065975.4A CN202011065975A CN112144371A CN 112144371 A CN112144371 A CN 112144371A CN 202011065975 A CN202011065975 A CN 202011065975A CN 112144371 A CN112144371 A CN 112144371A
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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
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/02—Suspension 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
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/04—Cable-stayed 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
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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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
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
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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
- E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
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Abstract
The application discloses cable-stay suspension cable collaboration system bridge relates to bridge engineering technical field, and it includes along two at least pylons that arrange along the bridge to and main push-towing rope and the girder of connecting a plurality of pylons, and the part that the girder is located between two pylons includes: the beam sections of the cable-stayed regions are provided with two sections which are respectively arranged close to one bridge tower, and the beam sections of the cable-stayed regions are connected with the adjacent bridge towers through stay cables of the cable-stayed regions; the crossing area beam section is provided with two sections which are respectively connected with one cable-stayed area beam section, the crossing area beam section is connected with an adjacent bridge tower through crossing area stay cables and is connected with a main cable through crossing area suspension rods, and each crossing area stay cable and each crossing area suspension rod are respectively anchored at different upper chord nodes of the crossing area beam section; and the suspension cable zone beam section is positioned between the two cross zone beam sections and is connected with the main cable through the suspension cable zone suspender. This application simplifies the anchor structure of crossing district suspension cable and crossing district jib on the girder, makes girder and bridge tower atress reasonable to reduce engineering cost.
Description
Technical Field
The application relates to the technical field of bridge engineering, in particular to a cable-stayed suspension cable cooperation system bridge.
Background
The cable-stayed suspension cable cooperation system is a novel structural system integrating the advantages of a cable-stayed bridge and a suspension bridge, and can ensure that the overall stress performance of the structure is improved while the structure has larger span. At present, a suspension cable-stayed cooperative system bridge is generally provided with a cross section of a suspension rod and a suspension cable, so that the structural rigidity can be changed uniformly and smoothly while the problem of fatigue of the suspension rod at the end is solved, and the stress of a main beam is improved. The steel truss girder has excellent overall and local rigidity relative to the steel box girder, so that the steel truss girder is the first choice for constructing large-span highway-railway combined bridges.
In the related art, the stay cable of the steel truss girder cable-stayed bridge and the suspension bridge suspender are generally anchored on the main truss node. When the steel truss is used in a cable-stayed suspension cable cooperation system, if a suspension rod and a cable-stayed cable at a cross section of the cable-stayed suspension cable are anchored according to a cable beam anchoring form of a conventional steel truss cable-stayed bridge or a suspension bridge, the problem that space is limited or conflicts with each other exists between an anchoring position and a cable body, and the following two solutions are usually adopted:
(1) the main cable is arranged as a space cable rope, or the anchoring point position of the main cable on the bridge tower is moved, and the stay cable and the suspender of the cross cable section are both anchored on the same node of the main beam;
(2) and (3) extending out and anchoring a bracket at the node of the main beam, and anchoring the stay cable or the suspender on the bracket.
However, in the first mode, if the position of the anchoring point of the main cable on the bridge tower is moved, the anchoring point is far away from the center of the tower column, the tower column bears a large eccentric bending moment, and the tower column and the upper cross beam are unreasonably stressed, so that the structural scale of the main tower is increased, the problems of overlarge stress and excessively complex force transmission of an anchoring area exist, the structure is not safe, and if the main cable is arranged as a space cable, the construction difficulty is increased, the temporary construction setting is increased, and the construction cost is increased; for the second mode, if the suspension rods or the stay cables are anchored on the brackets extending outwards from the main beam, the stress on the web members of the main beam and the bridge deck beams can be increased, and the steel consumption is increased. Meanwhile, the constant-load internal force of the suspender at the intersection area and the stay cable is relatively small by the two modes, so that the problem of fatigue is easily caused.
Disclosure of Invention
Aiming at one of the defects in the prior art, the application aims to provide a cable-stayed suspension cable cooperation system bridge to solve the problems of unreasonable stress and high engineering cost of the cable-stayed suspension cable cooperation system bridge in the related technology.
In order to achieve the above object, the present application provides a cable-stayed suspension cable cooperative system bridge, which includes at least two pylons arranged along a bridge direction, and a main cable and a main beam connecting the plurality of pylons, wherein a portion of the main beam located between the two pylons includes:
the beam sections of the cable-stayed regions are provided with two sections which are respectively arranged close to one bridge tower, and the beam sections of the cable-stayed regions are connected with the adjacent bridge towers through stay cables of the cable-stayed regions;
the crossing area beam section is provided with two sections and is respectively connected with a cable-stayed area beam section, the crossing area beam section is connected with an adjacent bridge tower through crossing area stay cables and is connected with the main cable through crossing area suspension rods, and each crossing area stay cable and each crossing area suspension rod are respectively anchored at different upper chord nodes of the crossing area beam section;
and the suspension cable zone beam section is positioned between the two cross zone beam sections and is connected with the main cable through a suspension cable zone suspender.
In some embodiments, the main beam includes an upper chord and a lower chord arranged in parallel, and a plurality of web members connecting the upper chord and the lower chord, the upper chord, the web members and the lower chord form a triangular truss, the upper chord node is a joint of the upper chord and the web members, and the joint of the web members and the lower chord is a lower chord node.
In some embodiments, the distances between adjacent bottom chord nodes in the cable-stayed section beam and the suspension section beam are the same and are larger than the distance between adjacent bottom chord nodes in the cross section beam.
In some embodiments, the two upper chords are connected by an upper cross beam, and the two lower chords are connected by a lower cross beam.
In some embodiments, the crossover section includes a plurality of spaced apart boom sections and cable stayed sections, each boom section anchoring at least one crossover section boom and each cable stayed section anchoring at least one crossover section cable stay.
In some embodiments, the stay cable sections are provided with stay cable anchoring structures for anchoring the cross-section stay cables, and the boom sections are provided with boom anchoring structures for anchoring the cross-section booms.
In some embodiments, each of the boom sections is supported by a cross-section boom and each of the stay cable sections is supported by a cross-section stay cable, the stay cable anchoring structure and the boom anchoring structure being spaced apart from each other.
In some embodiments, both ends of the main cable extend outward to the outside of the pylon and are anchored to anchors.
In some embodiments, two side piers for supporting the main beam are arranged below the main beam, and the two side piers are arranged at two ends of the main beam.
In some embodiments, an auxiliary pier for supporting the main beam is further arranged below the main beam, and the auxiliary pier is positioned between one side pier and the bridge tower opposite to the side pier.
The beneficial effect that technical scheme that this application provided brought includes:
the utility model provides a cable-stayed suspension cable cooperation system bridge, because the midspan part that the girder lies in between two pylons includes two cable-stayed district beam sections, two crossing district beam sections and a suspension district beam section, suspension district beam section lies in between two crossing district beam sections, the relative outside of two crossing district beam sections connects a cable-stayed district beam section respectively, wherein, cable-stayed district beam section passes through cable-stayed district suspension cable and connects adjacent pylon, suspension district beam section passes through suspension district jib and connects the main rope, crossing district beam section passes through crossing district cable-stayed cable and connects adjacent pylon, and pass through crossing district jib and connect with the main rope, and every crossing district cable-stayed cable and every crossing district jib anchors respectively in the different last chord node of crossing district beam section, namely crossing district cable-stayed cable and crossing district jib anchor point on crossing district beam section are not on same last chord node, therefore, not only can simplify crossing district cable-stayed cable and crossing district anchor structure on the girder, the stress of the main beam and the bridge tower is reasonable, the construction cost can be reduced, the problem that the stress is unreasonable due to the fact that the inclined stay cable and the hanger rod in the cross area are intensively anchored at the upper chord node is solved, and the mode that the outer extending bracket is transversely staggered and anchored is avoided.
Drawings
Fig. 1 is a front view of a cable-stayed suspension cable cooperation system bridge in an embodiment of the application;
FIG. 2 is a schematic view of the cross-area hanger rod and cross-area stay cable anchoring in the embodiment of the present application;
FIG. 3 is a schematic view of section A-A of FIG. 1;
FIG. 4 is a schematic view of section B-B of FIG. 1;
FIG. 5 is a partial schematic view of a cross-sectional beam segment in an embodiment of the present application;
fig. 6 is a schematic view of the crossing region stay cable and the crossing region hanger rod anchored at a distance from each other in the embodiment of the present application.
Reference numerals:
1. a bridge tower; 2. a main cable; 3. a main beam; 31. an upper chord; 32. a lower chord; 33. a web member; 34. an upper cross beam; 35. a lower cross beam; 4. a stay cable in the cable-stayed area; 5. a boom in the catenary region; 6. a cross area stay cable; 61. a stay cable anchoring structure; 7. a crossover section boom; 71. a boom anchoring structure; 8. side piers; 9. and (5) auxiliary piers.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The embodiment of the application provides a cable-stayed suspension cable cooperation system bridge, which aims to solve the problems that the cable-stayed suspension cable cooperation system bridge in the related technology is unreasonable in stress and high in engineering cost.
As shown in fig. 1, the cable-stayed suspension cable cooperative system bridge according to the embodiment of the application is suitable for a double-layer cooperative system bridge co-constructed by super-large span of highway and railway.
The cable-stayed suspension cable cooperation system bridge comprises at least two bridge towers 1 arranged along the bridge direction, a main cable 2 for connecting the bridge towers 1 and a main beam 3, wherein the part of the main beam 3 positioned between the two bridge towers 1 comprises a cable-stayed bridge section, a cross section beam section and a suspension cable section.
The two sections of the beam sections of the cable-stayed region are respectively arranged close to one bridge tower 1 and connected with the adjacent bridge tower 1 through a stay cable 4 of the cable-stayed region.
The cross-area beam section is provided with two sections, the two cross-area beam sections are respectively connected with a cable-stayed area beam section, the cross-area beam section is connected with the adjacent bridge tower 1 through a cross-area stay cable 6 and is connected with the main cable 2 through a cross-area suspender 7, and each cross-area stay cable 6 and each cross-area suspender 7 are respectively anchored at different upper chord nodes of the cross-area beam section.
The span wire section is located between two cross section beam sections, which are connected to the main cable 2 by a span wire boom 5.
The utility model provides a cable-stayed suspension cable cooperative system bridge, because the midspan part that the girder lies in between two bridge towers is cable-stayed district beam section, crossing district beam section, suspension cable district beam section, crossing district beam section and cable-stayed district beam section in proper order, cable-stayed district beam section passes through cable-stayed district suspension cable and connects adjacent bridge tower, suspension cable district beam section passes through suspension cable district jib and connects the main rope, crossing district beam section passes through crossing district suspension cable and connects with adjacent bridge tower, and pass through crossing district jib and main rope connection, and every crossing district suspension cable and every crossing district jib anchors respectively at the different upper chord node of crossing district beam section, namely crossing district suspension cable and crossing district jib anchor point on crossing district beam section are not on same upper chord node, therefore, not only can simplify the anchor structure of crossing district suspension cable and crossing district jib on the girder, make girder and bridge tower atress reasonable, still can reduce engineering cost, the problem that the stress is unreasonable due to the fact that the inclined stay cables and the suspension rods in the cross area are intensively anchored at the upper chord nodes is solved, and the mode that the outwards extending brackets are transversely staggered and anchored is avoided.
As shown in fig. 2, in the present embodiment, the main beam 3 is a steel truss beam arranged in layers, and the suspension area suspension rod 5, the intersection area suspension rod 7, the diagonal bracing area diagonal bracing 4 and the intersection area diagonal bracing 6 are anchored on the upper deck.
Specifically, the main beam 3 includes an upper chord 31 and a lower chord 32 which are arranged in parallel to each other, and a plurality of web members 33 connecting the upper chord 31 and the lower chord 32, the upper chord 31, the web members 33, and the lower chord 32 form a triangular truss, that is, a triangle is formed between two adjacent web members 33 and the upper chord 31, and a triangle is formed between two adjacent web members 33 and the lower chord 32, the upper chord node is a connection point of the upper chord 31 and the web members 33, and a connection point of the web members 33 and the lower chord 32 is a lower chord node.
Preferably, in the cable-stayed section and the suspension section, the distance between adjacent lower chord nodes is the same, and is different from the distance between adjacent lower chord nodes in the cross section. By adjusting the distance between adjacent lower chord nodes in the cross-area beam section, the cable surface arrangement and the overall coordination can be enhanced, the stress of the cross-area suspender 7 and the cross-area stay cable 6 of the cross-area beam section is uniform and smooth, the condition that the internal force of the cross-area suspender 7 or the cross-area stay cable 6 is unloaded to zero is avoided, and the problems of fatigue of the cross-area suspender 7 or the cross-area stay cable 6 and weak rigidity of the cross-area stay cable 6 can be solved.
In this embodiment, the distance between adjacent bottom chord nodes in the diagonal beam section is greater than the distance between adjacent bottom chord nodes in the cross beam section.
Specifically, in the cable-stayed bridge section, the distance between adjacent bottom chord nodes is a first internode length, in the suspension bridge section, the distance between adjacent bottom chord nodes is a second internode length, the distance between adjacent bottom chord nodes in the cross bridge section is a third internode length, and the first internode length is the same as the second internode length and is greater than the third internode length, so that the cross bridge section of the main beam 3 is arranged in variable internode relative to the cable-stayed bridge section and the suspension bridge section.
Optionally, the length of the beam section in the intersection region is taken as L, n internodes (n upper chord nodes and n lower chord nodes) are provided, and the length of each internode can be the same or different and is determined by calculation according to the stress of the bridge.
As shown in fig. 3 and 4, in the present embodiment, two upper chords 31 are arranged in parallel to each other, two lower chords 32 are arranged in parallel to each other, the upper chords 31 are connected to each other by upper cross members 34, and the two lower chords 32 are connected to each other by lower cross members 35.
Preferably, the cross-section beam section comprises a plurality of suspender sections and stay cable sections which are arranged at intervals, each suspender section is anchored with at least one cross-section suspender 7, and each stay cable section is anchored with at least one cross-section stay cable 6. Namely, the cross area suspender 7 and the cross area stay cable 6 are arranged in a longitudinally staggered manner, and the staggered internode number of the cross area suspender 7 and the cross area stay cable 6 is more than or equal to 1. Under the condition that the length and the relative position of the beam section at the intersection area are not changed, the anchoring points of the suspender 7 at the intersection area and the stay cable 6 at the intersection area are arranged in a staggered mode, the number of the suspender 7 at the intersection area and the stay cable 6 at the intersection area and the number of corresponding anchoring structures can be reduced, the side span can also be reduced, and the engineering scale is reduced.
Furthermore, the stay cable sections are provided with stay cable anchoring structures 61 for anchoring the cross area stay cables 6, the boom sections are provided with boom anchoring structures 71 for anchoring the cross area booms 7, and each of the stay cable anchoring structures 61 and the boom anchoring structures 71 is respectively located at different upper chord nodes of the cross area beam sections. Because the overhanging anchoring bracket is cancelled, the stress of the beam 34 and the web member 33 on the bridge deck can be reduced, and the construction cost is saved.
As shown in fig. 5, further, the number of cross-area booms 7 anchored at each boom section is N, and the number of cross-area stay cables 6 anchored at each stay cable section is M.
When each suspender segment anchors one cross area suspender 7(N is 1), and the number M of the cross area stay cables 6 anchored by each stay cable segment is more than one, the number of the cross area suspenders 7 is reduced, the number of the cross area stay cables 6 is more than the number of the cross area suspenders 7, the side span negative reaction force is increased, and the mid-span rigidity is correspondingly increased.
When each stayed cable segment anchors one cross area stayed cable 6(M is 1), and the number N of cross area suspenders 7 anchored by each suspender segment is more than one, the number of the cross area stayed cables 6 is reduced, the number of the cross area suspenders 7 is more than the number of the cross area stayed cables 6, the side span negative reaction force is reduced, and the mid-span rigidity is correspondingly reduced.
The reasonable design target is that the rigidity of the main beam 3 is large while the side span negative reaction force is small, so that the mid-span rigidity and the side span negative reaction force are calculated by selecting different value combinations of N and M, and when the side span negative reaction force and the mid-span rigidity corresponding to a certain value combination meet the design expected value, the values of N and M can be determined.
In this embodiment, as shown in fig. 6, each boom section is supported by one cross-section boom 7 and each stay cable section is supported by one cross-section stay cable 6, the stay cable anchoring structures 61 and the boom anchoring structures 71 being spaced apart from each other.
In this embodiment, both ends of the main cable 2 extend outward to the outside of the bridge tower 1 and are anchored to an anchor.
Further, two side piers 8 for supporting the main beam 3 are arranged below the main beam 3, and the two side piers 8 are located at two ends of the main beam 3. Preferably, an auxiliary pier 9 for supporting the main beam 3 is further arranged below the main beam 3, and the auxiliary pier 9 is positioned between one side pier 8 and the bridge tower 1 opposite to the side pier 8. Therefore, in this embodiment, the main girder 3 is supported by the suspension tower 5, the cross tower 7, the stay cables 4, the cross stay cables 6, the side piers 8, and the auxiliary piers 9.
The cable-stayed suspension cooperation system bridge is simple in structure, clear in force transmission and easy to construct, utilization efficiency of a cross area beam section cross area suspender 7 and a cross area stay cable 6 is improved, negative reaction force of short edge crossing is reduced, consumption of the cross area suspender 7 or the cross area stay cable 6 can be reduced, and construction cost is saved.
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 (10)
1. The utility model provides a cable-stay suspension cable cooperation system bridge which characterized in that, it includes along following two at least pylons (1) of arranging to the bridge and main cable (2) and girder (3) of connecting a plurality of pylons (1), the part that girder (3) are located between two pylons (1) includes:
the two sections of the beam sections of the cable-stayed region are respectively arranged close to one bridge tower (1), and the beam sections of the cable-stayed region are connected with the adjacent bridge towers (1) through stay cables (4) of the cable-stayed region;
the crossing area beam section is provided with two sections which are respectively connected with one cable-stayed area beam section, the crossing area beam section is connected with the adjacent bridge tower (1) through a crossing area stay cable (6) and is connected with the main cable (2) through a crossing area suspender (7), and each crossing area stay cable (6) and each crossing area suspender (7) are respectively anchored at different upper chord nodes of the crossing area beam section;
and the suspension cable zone beam section is positioned between the two cross zone beam sections and is connected with the main cable (2) through a suspension cable zone suspender (5).
2. A cable-stayed suspension cable cooperation system bridge according to claim 1, characterized in that: girder (3) are including last chord member (31) and lower chord member (32) and the connection of mutual parallel arrangement a plurality of web members (33) of last chord member (31) and lower chord member (32), last chord member (31), web member (33) and lower chord member (32) constitute the triangle-shaped truss, last chord node is the junction of last chord member (31) and web member (33), the junction of web member (33) and lower chord member (32) is lower chord node.
3. A cable-stayed suspension cable cooperation system bridge according to claim 2, characterized in that: and the distances between adjacent lower chord nodes in the cable-stayed zone beam section and the suspension cable zone beam section are the same and are greater than the distance between adjacent lower chord nodes in the cross zone beam section.
4. A cable-stayed suspension cable cooperation system bridge according to claim 2, characterized in that: the two upper chords (31) are connected through an upper cross beam (34), and the two lower chords (32) are connected through a lower cross beam (35).
5. A cable-stayed suspension cable cooperation system bridge according to claim 1, characterized in that: the cross-area beam section comprises a plurality of suspender sections and stay cable sections which are arranged at intervals, each suspender section is at least anchored with one cross-area suspender (7), and each stay cable section is at least anchored with one cross-area stay cable (6).
6. A cable-stayed suspension cable cooperation system bridge according to claim 5, characterized in that: the stay cable sections are provided with stay cable anchoring structures (61) for anchoring the stay cables (6) in the cross area, and the suspender sections are provided with suspender anchoring structures (71) for anchoring suspenders (7) in the cross area.
7. The cable-stayed suspension cable cooperative system bridge as claimed in claim 6, wherein: each suspender segment is supported by a cross area suspender (7), each stay cable segment is supported by a cross area stay cable (6), and the stay cable anchoring structures (61) and the suspender anchoring structures (71) are arranged at intervals.
8. A cable-stayed suspension cable cooperation system bridge according to claim 1, characterized in that: both ends of the main cable (2) extend outwards to the outer side of the bridge tower (1) and are anchored to anchor ingots.
9. A cable-stayed suspension cable cooperation system bridge according to claim 1, characterized in that: two side piers (8) used for supporting the main beam (3) are arranged below the main beam (3), and the two side piers (8) are located at two ends of the main beam (3).
10. A cable-stayed suspension cable cooperation system bridge according to claim 9, characterized in that: still be equipped with under girder (3) and be used for supporting auxiliary pier (9) of girder (3), and auxiliary pier (9) are located between a side pier (8) and the relative pylon (1) of this side pier (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011065975.4A CN112144371A (en) | 2020-09-30 | 2020-09-30 | Cable-stayed suspension cable cooperation system bridge |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011065975.4A CN112144371A (en) | 2020-09-30 | 2020-09-30 | Cable-stayed suspension cable cooperation system bridge |
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| CN113174863A (en) * | 2021-04-30 | 2021-07-27 | 中铁大桥勘测设计院集团有限公司 | Construction method of cable-stayed suspension cable cooperation system bridge |
| CN113174832A (en) * | 2021-04-30 | 2021-07-27 | 中铁大桥勘测设计院集团有限公司 | Composite anchoring structure and cable-stayed and suspended cooperative system steel truss girder bridge |
| CN115952711A (en) * | 2022-12-03 | 2023-04-11 | 中铁大桥勘测设计院集团有限公司 | Cable-stayed-suspension cable cooperative system bridge design method and cooperative system bridge |
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| CN113174863A (en) * | 2021-04-30 | 2021-07-27 | 中铁大桥勘测设计院集团有限公司 | Construction method of cable-stayed suspension cable cooperation system bridge |
| CN113174832A (en) * | 2021-04-30 | 2021-07-27 | 中铁大桥勘测设计院集团有限公司 | Composite anchoring structure and cable-stayed and suspended cooperative system steel truss girder bridge |
| CN115952711A (en) * | 2022-12-03 | 2023-04-11 | 中铁大桥勘测设计院集团有限公司 | Cable-stayed-suspension cable cooperative system bridge design method and cooperative system bridge |
| CN115952711B (en) * | 2022-12-03 | 2024-06-18 | 中铁大桥勘测设计院集团有限公司 | Cable-stayed and suspension cable cooperation system bridge design method and cooperation system bridge |
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