CN114635372B - Multi-tower suspension bridge reinforcing structure for overcoming middle tower effect - Google Patents
Multi-tower suspension bridge reinforcing structure for overcoming middle tower effect Download PDFInfo
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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
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling 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
- E01D11/02—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
- 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
- E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
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Abstract
The invention provides a multi-tower suspension bridge reinforcing structure for overcoming a middle tower effect, which relates to the technical field of suspension bridge construction and comprises a middle tower, side towers, a main cable, a main beam and a central buckle assembly, wherein the central buckle assembly comprises a first central buckle and a second central buckle, the first central buckle and the second central buckle are I-shaped pieces, the upper ends of the first central buckle and the second central buckle are connected with a middle-span position of the main cable, a plurality of hanging rods are connected between the main cable and the main beam, and the lower ends of the first central buckle and the lower ends of the second central buckle are connected with the connecting positions of the hanging rods and the main beam respectively. The invention has simple structure and low cost, the central buckle component is arranged in the main cable span to form a triangular truss, the strength of the whole central buckle component is effectively increased, the rigidity of the multi-tower suspension bridge can be effectively improved, the safety of the cable bridge is still ensured, the two central buckles can be mutually compensated, the abrasion of the central buckle component is effectively reduced, and the service life is long.
Description
Technical Field
The invention relates to the technical field of suspension bridge construction,
in particular, the present invention relates to a multi-tower suspension bridge reinforcement structure for overcoming the mid-tower effect.
Background
In recent years, with rapid development of technology and continuous improvement of travel quality requirements of people, the construction of strait-crossing bridges at home and abroad is rising, and suspension bridges are dominant in various schemes by virtue of strong crossing capability. The multi-tower suspension bridge not only solves the span problem, but also can maintain the original optimal sagittal ratio, but the suspension bridge belongs to a flexible structure, and the multi-tower suspension bridge is hindered by the 'middle tower effect' due to the fact that the towers lack of effective constraint of main cables. The 'middle tower effect' is a key problem which puzzles the development of the multi-tower suspension bridge, the middle tower is lack of constraint of a side span main cable, the constraint of the main cable on the middle bridge tower is weak, and the multi-tower suspension bridge can generate huge unbalanced force at the tower top under the action of the least adverse load working condition. If the rigidity of the middle tower is too high, the saddle can not bear the difference of cable force to generate relative sliding; the rigidity of the middle tower is too small, and the main girder generates larger deflection when bearing load, so that the travelling comfort is affected.
The main cable and the main girder are relatively dislocated when being subjected to unbalanced load, and effective cable-girder connection needs to be established, so that the development of overcoming the middle tower effect is more and more increasing in the prior art, for example, a three-tower self-anchored suspension bridge is proposed in Chinese patent No. 112239992A, which comprises two side piers, two auxiliary piers arranged on the inner sides of the two side piers, three main towers arranged between the two auxiliary piers, a main girder, a plurality of main cables fixed on the main towers and a plurality of slings for lifting the main girder. The three-tower self-anchored suspension bridge structure system is formed through the central buckle, so that the horizontal constraint of the main cable of the span on the tower top of the middle tower is increased, the longitudinal bending moment of the tower bottom of the middle tower under unbalanced live load is reduced, the structural size of the middle tower is reduced, the vertical rigidity of the structure is improved, the economic span of the three-tower self-anchored suspension bridge is improved, and the three-tower self-anchored suspension bridge structure system is applicable to the three-tower self-anchored suspension bridge with the span of more than 400m and is applicable to large-span public rail combined bridges.
However, the suspension bridge structure still has the following problems: the main cable and the main girder are connected only through the common central buckle, the vertical rigidity of the structure is insufficient, and when the main span is fully loaded, the central buckle can only properly reduce the influence of vertical deflection and cannot offset the increment of horizontal deflection, so that the central buckle has serious structural damage and short service life, and the safety of a cable bridge is influenced.
Therefore, in order to solve the above-mentioned problems, it is necessary to design a reasonably efficient multi-tower suspension bridge reinforcement structure for overcoming the middle tower effect.
Disclosure of Invention
The invention aims to provide the multi-tower suspension bridge reinforcing structure which has the advantages that the structure is simple, the installation cost is low, the central buckle component is installed in the main cable span, the two central buckles in the central buckle component and one section of the main beam form a triangular truss, the strength of the whole central buckle component is effectively increased, the rigidity of the multi-tower suspension bridge can be effectively improved, the resistance to horizontal deflection increment is high, the safety of the cable bridge is still ensured even if the main span is fully loaded, and even a compensation cable can be additionally arranged on the triangular truss, so that the two central buckles in the central buckle component form mutual compensation, the abrasion of the central buckle component is effectively reduced, the service life is long, and the maintenance cost is reduced.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
the utility model provides a multi-tower suspension bridge reinforced structure for overcoming well tower effect, includes well tower, strake, is used for connecting well tower top and strake top, be used for connecting the girder of well tower bottom and strake bottom and be used for connecting the central knot subassembly of main cable and girder, the central knot subassembly includes first central knot and second central knot, first central knot and second central knot all are the I-shaped piece, the upper end of first central knot and second central knot all with the main cable is connected in the middle of being crossed, be connected with a plurality of jib between main cable and the girder, the main cable is crossed the middle position and is close to the jib of one side of well tower with the girder junction is connected with the lower extreme of first central knot, the main cable is crossed the middle position and is close to the jib of one side of strake with the girder junction is connected with the lower extreme of second central knot.
Preferably, the first and second center buttons have the same length.
Preferably, the first central buckle middle part is connected with the second central buckle middle part through a connecting rod.
Preferably, the lower end of the first central buckle is connected with the bottom of the second central buckle through a compensation cable.
Preferably, the height of the compensation cable is not lower than the height of the main beam, the middle-span position of the compensation cable is connected with the end part of the connecting rod through a third central buckle, and the middle-span position of the compensation cable is connected with one end of the connecting rod far away from the third central buckle through a fourth central buckle.
Preferably, the third and fourth center buttons are i-shaped members.
Preferably, the first, second, third and fourth central buttons are rigid members.
Preferably, the main cable midspan is provided with a bolt ball for connecting with the central buckle assembly, and the first central buckle and the second central buckle are respectively provided with a welding groove for welding with the bolt ball.
Preferably, an anchor ring is arranged at the joint of the suspender and the main beam, and welding handles for welding with the anchor ring are arranged at one end of the first central buckle, which is far away from the welding groove, and one end of the second central buckle, which is far away from the welding groove.
Preferably, the lower side of the main beam is provided with a foundation column for connecting with the middle tower and the side tower.
The multi-tower suspension bridge reinforcing structure for overcoming the middle tower effect has the beneficial effects that: the cable bridge is simple in structure and low in installation cost, the central buckle component is installed in the main cable span, the two central buckles in the central buckle component and one section of the main beam form a triangular truss, the strength of the whole central buckle component is effectively improved, the rigidity of the multi-tower suspension bridge can be effectively improved, the resistance to horizontal deflection increment is high, the safety of the cable bridge is still guaranteed even if the main cable span is fully loaded, and even a compensation cable can be additionally installed on the triangular truss, so that the two central buckles in the central buckle component are mutually compensated, the abrasion of the central buckle component is effectively reduced, the service life is long, and the maintenance cost is reduced.
Drawings
FIG. 1 is a schematic overall structure of one embodiment of a multi-tower suspension bridge reinforcement structure for overcoming the mid-tower effect of the present invention;
FIG. 2 is a schematic structural view of a first center button in one embodiment of a multi-tower suspension bridge reinforcement structure for overcoming the mid-tower effect of the present invention;
FIG. 3 is a schematic illustration of the connection of a main cable mid-span position to a center buckle assembly in one embodiment of a multi-tower suspension bridge reinforcement structure for overcoming the mid-tower effect of the present invention;
FIG. 4 is a schematic illustration of the structure of the boom and main beam connection in one embodiment of a multi-tower suspension bridge reinforcement structure for overcoming the mid-tower effect of the present invention;
FIG. 5 is a schematic diagram of a main span stress analysis of a suspension bridge without the use of a multi-tower suspension bridge reinforcement structure for overcoming the mid-tower effect of the present invention;
FIG. 6 is a schematic diagram of a main span force analysis of a suspension bridge using a multi-tower suspension bridge reinforcement structure for overcoming the mid-tower effect of the present invention;
in the figure: 1. the central buckle assembly, 11, a first central buckle, 111, a welding groove, 112, a welding handle, 12, a second central buckle, 13, a connecting rod, 14, a compensation cable, 15, a third central buckle, 16, a fourth central buckle, 2, a main beam, 21, a foundation column, 22, an anchoring ring, 3, a main cable, 31, a bolt ball, 4, a middle tower, 5, a side tower, 6 and a suspender.
Detailed Description
The following are specific examples of the present invention, and the technical solutions of the present invention are further described, but the present invention is not limited to these examples.
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the modules and steps set forth in these embodiments and the steps do not limit the scope of the present invention unless specifically stated otherwise.
Meanwhile, it should be understood that the flow in the drawings is not merely performed alone, but a plurality of steps are performed to cross each other for convenience of description.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the present invention product, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and systems known to those of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the authorization specification where appropriate.
Embodiment one: as shown in fig. 1 to 6, which are only embodiments of the present invention, a multi-tower suspension bridge reinforcement structure for overcoming the middle tower effect includes a middle tower 4, a side tower 5, a main cable 3 for connecting the top of the middle tower 4 and the top of the side tower 5, a main girder 2 for connecting the bottom of the middle tower 4 and the bottom of the side tower 5, and a central buckle assembly 1 for connecting the main cable 3 and the main girder 2, wherein the central buckle assembly 1 includes a first central buckle 11 and a second central buckle 12, the first central buckle 11 and the second central buckle 12 are both i-shaped members, the upper ends of the first central buckle 11 and the second central buckle 12 are connected with the middle position of the main cable 3, a plurality of hanging rods 6 are connected between the main cable 3 and the main girder 2, the connection point of the hanging rods 6 and the main girder 2 on one side of the middle tower 4 is connected with the lower end of the first central buckle 11, and the connection point of the hanging rods 12 on one side of the main cable 3 on the side of the main girder 5 is connected with the lower end of the hanging rods 2.
In the invention, we only describe the structural reinforcement between the middle tower 4 and one side tower 5 in the three-tower suspension bridge structure, the main cable 3 connects the top of the middle tower 4 and the top of the side tower 5, and the main cable 3 sags in a mid-span position under the gravity; the main beam 2 is a main beam horizontally arranged in the whole suspension bridge, and in order to prevent the main cable 3 from shaking, a plurality of suspenders 6 (or slings) are hung on the main cable 3 to be flexibly connected with the main beam 2, and a central buckle component 1 is arranged at the midspan position of the main cable 3 to be connected with the main beam 2.
Here, the central buckle assembly 1 includes a first central buckle 11 and a second central buckle 12, the upper ends of the first central buckle 11 and the second central buckle 12 are connected with the main cable 3 at a midspan position, a plurality of hanging rods 6 are connected between the main cable 3 and the main beam 2, the connection position of the hanging rod 6 and the main beam 2 at one side of the main cable 3 near the middle tower 4 is connected with the lower end of the first central buckle 11, the connection position of the hanging rod 6 and the main beam 2 at one side of the main cable 3 near the side tower 5 is connected with the lower end of the second central buckle 12, so that the section of the main beam 2 between the first central buckle 11, the second central buckle 12 and the bottom end of the first central buckle 11 and the bottom end of the second central buckle 12 forms a triangular truss structure, the whole central buckle assembly 1 has higher structural degree, and due to the stability of the triangular structure, the longitudinal and transverse displacement of the midspan position of the main cable 3 is limited, the strength of the whole central buckle assembly is effectively increased, the service life is prolonged, and the effective suspension tower rigidity is also improved.
In order to facilitate the explanation of the effect of the multi-tower suspension bridge reinforcing structure for overcoming the middle tower effect, the stress analysis of the suspension bridge (taking a left span as an example below) is carried out:
when the multi-tower suspension bridge reinforcing structure for overcoming the middle tower effect is not used, as shown in fig. 5, the multi-tower suspension bridge has weaker constraint of the main cable 3 on the middle bridge tower and lower rigidity of the middle tower 4 due to the fact that the middle tower 4 lacks constraint of the side span main cable; when the most unfavorable load, namely the main span full load q, the top of the side tower 5 and the top of the middle tower 4 are shifted to the span, the top position A of the side tower 5 is shifted to A ', the top position B of the middle tower 4 is shifted to B', and the horizontal force H2 borne by the top of the side tower 5 is equal to the horizontal force H1 borne by the top of the middle tower 4; the main beam 2 generates vertical deflection, the main span 3 is moved downwards to C ', the middle tower 4 generates more displacement at the tower top due to low rigidity, namely AA ' is smaller than BB ', so that the peak value of the vertical deflection of the main beam is larger, namely delta 1 is larger than the middle deflection delta 2, and the deflection peak value is not middle;
in contrast, when the multi-tower suspension bridge reinforcing structure for overcoming the middle tower effect is used, as shown in fig. 6, after the main cable 3 midspan is connected with the main cable 2 through the central buckle component 1, the main cable 3 midspan is restrained by the main cable 2, when the main cable 3 midspan is also subjected to the least adverse load, namely the main span full load q, although the displacement of the middle tower 4 is still more than that of the side tower 5, because the central buckle component 1 limits the relation of the longitudinal displacement of the main cable 3, the deflection increment caused by the displacement of the middle tower 4 is more than that caused by the displacement of the side tower 5 when the reinforcing structure is not used, and the deflection peak delta 4 at the moment is smaller than that of the non-used reinforcing structure; and the central buckle assembly 1 also limits the transverse displacement of the midspan position of the main cable 3, so that the horizontal force H2 borne by the top of the side tower 5 is equal to the sum of the horizontal force H1 borne by the top of the middle tower 4 and the horizontal force H3 borne by the midspan position of the main cable 3 (namely, the central buckle assembly 1), namely, the horizontal force H1 borne by the top of the middle tower 4 is borne by a part of the main girder 2 connected with the central buckle assembly 1;
in a word, after the multi-tower suspension bridge reinforcing structure for overcoming the middle tower effect is used, not only is the longitudinal deflection peak value reduced, but also the middle tower 4 receives horizontal force and is partially shared by the main beam 2, so that the multi-tower suspension bridge reinforcing structure can effectively overcome the middle tower effect, has high resistance to horizontal deflection increment, and ensures the safety of the cable bridge even if the main span is fully loaded.
The multi-tower suspension bridge reinforcing structure for overcoming the middle tower effect is simple in structure and low in installation cost, the central buckle component is installed in the middle of the main cable, two central buckles in the central buckle component and one section of the main beam form a triangular truss, the strength of the whole central buckle component is effectively increased, the rigidity of the multi-tower suspension bridge can be effectively improved, the resistance to horizontal deflection increment is high, the safety of the cable bridge is still guaranteed even if the main cable is fully loaded, the stability of the central buckle component is good, and the service life is long.
In the second embodiment, as shown in fig. 1 to 6, only one embodiment of the present invention is shown, and based on the first embodiment, in the multi-tower suspension bridge reinforcement structure for overcoming the middle tower effect of the present invention, the lengths of the first central buckle 11 and the second central buckle 12 are the same, that is, the triangular truss is preferably made to be an isosceles triangle structure, so that materials are selected more uniformly, the stress sharing between the first central buckle 11 and the second central buckle 12 on the main cable 3 is more balanced, and the suspension bridge strength is higher.
Of course, the middle part of the first central buckle 11 is connected with the middle part of the second central buckle 12 through the connecting rod 13, that is, the upper half part of the first central buckle 11, the upper half part of the second central buckle 12 and the connecting rod 13 form a small triangular truss, and the small triangular truss is similar to the large triangular truss, so that the structural strength of the large triangular truss can be increased, the first central buckle 11 and the second central buckle 12 can be connected, and then when the first central buckle 11 is stressed, the second central buckle 12 can synchronously share.
Further, the lower end of the first central buckle 11 is connected to the bottom of the second central buckle 12 through a compensation cable 14, where the height of the compensation cable 14 is not lower than the height of the main beam 2, the mid-span position of the compensation cable 14 is connected to the end of the connecting rod 13 through a third central buckle 15, and the mid-span position of the compensation cable 14 is connected to the end of the connecting rod 13 away from the third central buckle 15 through a fourth central buckle 16.
The midspan of the compensation cable 14 is bent upward by the tension of the third central buckle 15 and the fourth central buckle 16 to compensate for the extension of the main cable 3, and the third central buckle 15, the fourth central buckle 16 and the connecting rod 13 also form a triangle structure for reinforcing the connection strength of the connecting rod 13, further making the first central buckle 11 and the second central buckle 12 in the central buckle assembly to compensate each other.
Finally, the first central buckle 11, the second central buckle 12, the third central buckle 15 and the fourth central buckle 16 are all rigid i-shaped members, so that the rigid connection of the central buckle assembly 1 is ensured, and the end area of the central buckle is larger under the structure of the i-shaped members, so that the welding connection of the central buckle is more convenient.
In the multi-tower suspension bridge reinforcement structure for overcoming the middle tower effect according to the present invention, as shown in fig. 1 to 6, the middle position of the main cable 3 is provided with a bolt ball 31 for connecting with the central buckle assembly 1, and the ends of the first central buckle 11 and the second central buckle 12 are provided with welding grooves 111 for welding with the bolt ball 31; at least a part of the bolt ball 31 is clamped into the welding groove 111, and after the first central buckle 11 and the second central buckle 12 with proper lengths are selected to be matched with the midspan position of the main cable 3, the bolt ball 31 at the midspan position of the main cable 3 is clamped into the welding groove 111 to finish welding.
Similarly, an anchor ring 22 is disposed at the connection between the boom 6 and the main beam 2, a welding handle 112 for welding with the anchor ring 22 is disposed at the end of the first central buckle 11 away from the welding groove 111 and the end of the second central buckle 12 away from the welding groove 111, and after the welding handle 112 is inserted into the anchor ring 22, the welding handle 112 is welded with the anchor ring 22.
Finally, the lower side of the main beam 2 is provided with a foundation column 21 connected with the middle tower 4 and the side tower 5, precisely, a foundation column 21 is integrally connected below no main body tower (comprising the middle tower 4 and the side tower 5), the foundation column 21 is a reinforced concrete column arranged on the ground, and the main beam 3 is horizontally arranged at the joint of the main body tower and the foundation column 21.
The multi-tower suspension bridge reinforcing structure for overcoming the middle tower effect is simple in structure and low in installation cost, the central buckle component is installed in the middle of the main cable, two central buckles in the central buckle component and one section of the main girder form a triangular truss, the strength of the whole central buckle component is effectively increased, the rigidity of the multi-tower suspension bridge can be effectively improved, the resistance to horizontal deflection increment is high, the safety of the cable bridge is still guaranteed even if the main span is fully loaded, even a compensation cable can be additionally installed on the triangular truss, the two central buckles in the central buckle component are further mutually compensated, the abrasion of the central buckle component is effectively reduced, the service life is long, and the maintenance cost is reduced.
The present invention is not limited to the above-described specific embodiments, and various modifications and variations are possible. Any modification, equivalent replacement, improvement, etc. of the above embodiments according to the technical substance of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A multi-tower suspension bridge reinforcement structure for overcoming the mid-tower effect, characterized by: the main cable (3) is used for connecting the top of the middle tower (4) and the top of the side tower (5), a main beam (2) is used for connecting the bottom of the middle tower (4) and the bottom of the side tower (5), and a central buckle assembly (1) is used for connecting the main cable (3) and the main beam (2), the central buckle assembly (1) comprises a first central buckle (11) and a second central buckle (12), the first central buckle (11) and the second central buckle (12) are I-shaped pieces, the upper ends of the first central buckle (11) and the second central buckle (12) are connected with the main cable (3) at a midspan position, a plurality of hanging rods (6) are connected between the main cable (3) and the main beam (2), the connecting position of the main cable (3) is close to one side of the middle tower (4) and the connecting position of the hanging rods (6) is connected with the lower end of the first central buckle (11), and the upper end of the main cable (3) is close to one side of the main beam (2); the lengths of the first central buckle (11) and the second central buckle (12) are the same; the middle part of the first central buckle (11) is connected with the middle part of the second central buckle (12) through a connecting rod (13); the bottom end of the first central buckle (11) is connected with the bottom of the second central buckle (12) through a compensation cable (14); the height of the compensation cable (14) is not lower than that of the main girder (2), the midspan position of the compensation cable (14) is connected with the end part of the connecting rod (13) through a third central buckle (15), and the midspan position of the compensation cable (14) is connected with one end, far away from the third central buckle (15), of the connecting rod (13) through a fourth central buckle (16).
2. A multi-tower suspension bridge reinforcement structure for overcoming the mid-tower effect according to claim 1, wherein: the third central buckle (15) and the fourth central buckle (16) are I-shaped pieces.
3. A multi-tower suspension bridge reinforcement structure for overcoming the mid-tower effect according to claim 2, wherein: the first central buckle (11), the second central buckle (12), the third central buckle (15) and the fourth central buckle (16) are all rigid pieces.
4. A multi-tower suspension bridge reinforcement structure for overcoming the mid-tower effect according to claim 1, wherein: the main cable (3) is provided with a bolt ball (31) connected with the central buckle assembly (1) at the midspan position, and welding grooves (111) used for welding with the bolt ball (31) are formed in the ends of the first central buckle (11) and the second central buckle (12).
5. A multi-tower suspension bridge reinforcement structure for overcoming the mid-tower effect according to claim 4, wherein: the hanger rod (6) with girder (2) junction is provided with anchor ring (22), first central knot (11) keep away from the one end of welding groove (111) and second central knot (12) keep away from the one end of welding groove (111) all be provided with be used for with anchor ring (22) welded welding handle (112).
6. A multi-tower suspension bridge reinforcement structure for overcoming the mid-tower effect according to claim 1, wherein: the lower side of the main beam (2) is provided with a foundation column (21) which is used for being connected with the middle tower (4) and the side tower (5).
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0849215A (en) * | 1994-08-05 | 1996-02-20 | Sumitomo Heavy Ind Ltd | Cable structure of suspension bridge |
| JP3732468B2 (en) * | 2002-09-04 | 2006-01-05 | 朝日エンヂニヤリング株式会社 | Reinforcement structure of truss bridge or arch bridge |
| CN100379619C (en) * | 2003-07-24 | 2008-04-09 | 于晓波 | Suspension cable traffic system |
| CN208072166U (en) * | 2017-09-27 | 2018-11-09 | 中交公路长大桥建设国家工程研究中心有限公司 | Hybrid combining beam three stride continuous suspension bridge |
| CN108930222A (en) * | 2018-07-18 | 2018-12-04 | 广西大学 | Camber consolidates triangle arch bridge |
| CN109183604A (en) * | 2018-10-22 | 2019-01-11 | 上海市政工程设计研究总院（集团）有限公司 | A kind of self-anchored suspension bridge center button construction |
| CN110258802B (en) * | 2019-05-31 | 2020-08-11 | 东南大学 | Super-large-span spoke type suspended dome structure based on flying swallow type truss arch |
| CN114016372B (en) * | 2021-09-16 | 2024-05-31 | 北京交通大学 | Suspension bridge reset energy consumption type central buckle and design and use method thereof |
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