CN114277683A - Large-gradient long-cantilever bridge deck pavement structure - Google Patents
Large-gradient long-cantilever bridge deck pavement structure Download PDFInfo
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- CN114277683A CN114277683A CN202111395219.2A CN202111395219A CN114277683A CN 114277683 A CN114277683 A CN 114277683A CN 202111395219 A CN202111395219 A CN 202111395219A CN 114277683 A CN114277683 A CN 114277683A
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 52
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 21
- 239000010959 steel Substances 0.000 claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims description 40
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 8
- 239000011159 matrix material Substances 0.000 abstract description 3
- 238000005452 bending Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- 230000000694 effects Effects 0.000 description 1
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Abstract
The invention discloses a large-gradient long-cantilever bridge deck pavement structure which comprises a cantilever, a support pier and a cantilever vertical beam positioned in the middle of a bridge, wherein the cantilever is arranged on the support pier; each group of lacing wire mechanisms at least comprises two lacing wires; the side, matched with the cantilever, of the cantilever is provided with a first reinforcing structure, and the side, matched with the cantilever, of the support pier is provided with a second reinforcing structure; a plurality of reinforcing parts are distributed between the first reinforcing structure and the second reinforcing structure along the direction perpendicular to the first reinforcing structure and the second reinforcing structure, and the plurality of reinforcing parts are distributed on the matching surfaces of the cantilever and the support pier in a dot matrix manner. Two tie bars are designed at each stretching point of the cantilever and the cantilever vertical beam of the structure, and the connection with the cantilever is realized through the tie bar connecting piece, so that the structure stability is good, the number of the tie bars is two times that of the existing tie bars, and the stability of cantilever support is also improved; the connection strength of the cantilever and the support pier is improved in a steel plate and concrete mode, the stability of the long cantilever bridge deck is further improved, and the construction is convenient and fast.
Description
Technical Field
The invention relates to the technical field of bridge construction, in particular to a bridge deck pavement structure with a large-gradient long cantilever.
Background
A cantilever beam bridge refers to a bridge having a simply supported beam freely hanging out at one or both ends as the main load bearing member of the superstructure.
Cantilever bridge construction structures among the prior art generally divide into two types of cantilever pouring and cantilever concatenation, and cantilever one end is connected with the basis, and the other end extends to cantilever and stands roof beam department to realize being connected through the lacing wire between standing the roof beam with the cantilever. Cantilever bridge floor among the prior art is only for the single-point type connection owing to design traditional lacing wire, in order to can improve structural strength and security, needs tensile many lacing wires along cantilever length direction to improve the support stability of cantilever. Simultaneously, in order to guarantee the support stability of cantilever bridge floor and lower part buttress, have many buttress mounds at cantilever bridge floor bottom interval arrangement, but except necessary reinforcing bar, only connect through concrete placement's mode between present stage buttress and the cantilever bridge floor, but correspond the bridge floor that has certain slope and say, support stability does not satisfy, influences the life of bridge floor easily.
Therefore, in view of the above technical problems, there is a need for developing a bridge deck pavement structure with large-slope and long-cantilever to improve the structural stability of the bridge deck.
Disclosure of Invention
The invention aims to provide a large-gradient long-cantilever bridge deck pavement structure which is novel in structure, high in stability and convenient to construct.
In order to achieve the above purpose, the invention provides the following technical scheme:
the invention relates to a bridge deck pavement structure with large gradient and long cantilever, which comprises:
a cantilever;
a plurality of support piers which are supported at the bottom of the cantilever and are distributed at intervals; and
the cantilever vertical beam is positioned in the middle of the bridge;
one end of the cantilever extends to the end part of the bridge and is connected with a cantilever foundation at the end part, and the other end of the cantilever extends towards the cantilever vertical beam in an inclined mode and is connected with the cantilever vertical beam through a plurality of groups of lacing wire mechanisms so as to keep the position of the cantilever;
each group of lacing wire mechanisms at least comprises two lacing wires;
a first reinforcing structure is arranged on one side, matched with the support pier, of the cantilever, and a second reinforcing structure is arranged on one side, matched with the cantilever, of the support pier;
a plurality of reinforcing parts are distributed between the first reinforcing structure and the second reinforcing structure along the direction perpendicular to the first reinforcing structure and the second reinforcing structure, and the plurality of reinforcing parts are distributed on the matching surfaces of the cantilever and the support pier in a lattice mode.
Further, the cantilever foundation is arranged at the end part of the bridge and comprises a metal frame and a plurality of reinforcing ribs distributed at intervals inside the metal frame, and the space between the metal frame and the reinforcing ribs is poured through concrete;
the lower part of the reinforcing rib is anchored into the ground to realize the connection of the cantilever foundation and the ground.
Furthermore, a plurality of groups of tie bar connecting pieces are arranged at intervals along the extending direction of the cantilever;
each group of the lacing wire connecting pieces comprises two lacing wire connecting pieces which are symmetrically arranged along the width direction of the cantilever;
and each lacing wire connecting piece is connected with two lacing wires.
Further, the tie bar connecting piece is configured into a bending structure;
the lacing wire connecting piece comprises:
a first body extending along an upper surface of the cantilever; and
a second body extending along a side of the cantilever;
the first body and the second body are integrally formed, and the joint of the first body and the second body is in transition connection through a circular arc surface;
the first body is connected with the cantilever through a plurality of riveting pieces, and the second body is connected with the cantilever through a plurality of riveting pieces;
the middle part of the first body is provided with a first lacing wire connecting part vertical to the first body, and the middle part of the second body is provided with a second lacing wire connecting part vertical to the second body;
the two lacing wires correspond to the lacing wire connecting parts respectively;
the tie bars connected to the first tie bar connecting parts extend towards the cantilever vertical beam;
the tie bars connected to the second tie bar connecting portions are in contact with the surface of the arc surface to extend toward the cantilever vertical beam.
Further, the bottom of the cantilever is formed into a cantilever fitting part which is fitted with the support pier;
the cantilever matching part comprises a cantilever matching part metal frame, a cantilever bottom plate is arranged on one side of the cantilever matching part metal frame, which faces the support pier, and a cantilever top plate is arranged on one side of the cantilever matching part metal frame, which is far away from the support pier;
the metal frame of the cantilever matching part is circumferentially provided with cantilever side plates connected with the cantilever bottom plate and the cantilever top plate;
a plurality of steel bars are distributed in the metal frame of the cantilever matching part and are molded by pouring concrete;
one end of the support pier matched with the cantilever is provided with a support pier top plate;
the cantilever bottom plate of the cantilever is connected with the support pier top plate through the steel bar, and a gap is poured through concrete;
the cantilever matching part metal frame is the first reinforcing structure, and the support pier top plate is the second reinforcing structure.
Further, the steel bars and the cantilever bottom plate as well as the steel bars and the support pier top plate are fixedly connected through fasteners;
the fastener is a metal sleeve which is sleeved on and fixedly connected with the steel bar, and the metal sleeve is welded and fixed with the joint of the steel bar and the joint of the metal sleeve and the corresponding metal plate.
In the technical scheme, the bridge deck pavement structure with the large-gradient long cantilever provided by the invention has the following beneficial effects:
two tie bars are designed at each stretching point of the cantilever and the cantilever vertical beam of the structure, and the connection with the cantilever is realized through the tie bar connecting piece, so that the structure stability is good, the number of the tie bars is two times that of the existing tie bars, and the stability of cantilever support is also improved; the connection strength of the cantilever and the support pier is improved in a steel plate and concrete mode, the stability of the long cantilever bridge deck is further improved, and the construction is convenient and fast.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
Fig. 1 is a schematic structural diagram of a bridge deck pavement structure with a large-gradient long cantilever according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a cantilever foundation of a large-gradient long-cantilever bridge deck pavement structure according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a tie bar mechanism of a large-gradient long-cantilever bridge deck pavement structure provided in an embodiment of the present invention;
fig. 4 is a sectional view of a connection structure of a cantilever and a support pier of a large-gradient long-cantilever bridge deck pavement structure provided by an embodiment of the invention.
Description of reference numerals:
1. a cantilever; 2. a cantilever vertical beam; 3. a cantilever foundation; 4. supporting piers; 5. a lacing wire mechanism;
101. a cantilever engagement portion; 102. a cantilever floor; 103. a cantilever top plate; 104. a cantilever side plate; 105. reinforcing steel bars;
301. a metal frame; 302. reinforcing ribs;
401. supporting a pier top plate;
501. a first body; 502. a second body; 503. a first lacing wire connecting part; 504. a second lacing wire connecting part; 505. and (6) stretching the ribs.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 4;
the embodiment discloses a long cantilever bridge deck pavement structure of heavy grade, this structure includes:
a cantilever 1;
a plurality of support piers 4 which are supported at the bottom of the cantilever 1 and are distributed at intervals; and
the cantilever vertical beam 2 is positioned in the middle of the bridge;
one end of the cantilever 1 extends to the end part of the bridge and is connected with a cantilever foundation 3 at the end part, and the other end of the cantilever 1 extends towards the cantilever vertical beam 2 in an inclined way and is connected with the cantilever vertical beam 2 through a plurality of groups of lacing wire mechanisms 5 so as to keep the position of the cantilever 1;
each group of lacing wire mechanisms 5 at least comprises two lacing wires 505;
the side, matched with the cantilever 4, of the cantilever 1 is provided with a first reinforcing structure, and the side, matched with the cantilever, of the support pier 4 is provided with a second reinforcing structure;
a plurality of reinforcing parts are distributed between the first reinforcing structure and the second reinforcing structure along the direction vertical to the first reinforcing structure and the second reinforcing structure, and the plurality of reinforcing parts are distributed on the matching surfaces of the cantilever 1 and the support pier 4 in a dot matrix manner.
Specifically, this embodiment discloses a bridge deck pavement structure suitable for heavy-gradient, long cantilever, it includes cantilever 1 and supports many support piers 4 in cantilever 1 bottom, according to the slope of cantilever 1 and the requirement of the support length that corresponds, designs the length of support pier 4 to in order to improve the support pier 4 and support the intensity of cantilever 1, designed foretell first additional strengthening and second additional strengthening between cantilever 1 and support pier 4. Meanwhile, in order to strengthen the connection between the cantilever 1 and the cantilever upright beam 2, two tie bars 505 are designed at each stretching point, and of course, there may be more than two tie bars, which are not described herein again. This construction structure effectively improved the structural stability of cantilever bridge floor in the aspect of being connected from cantilever 1 and support pier 4 to and cantilever 1 and cantilever found 2, construction convenience.
Preferably, the end of the bridge of the present embodiment has a cantilever foundation 3, the cantilever foundation 3 includes a metal frame 301 and a plurality of reinforcing ribs 302 distributed at intervals inside the metal frame 301, and the space between the metal frame 301 and the reinforcing ribs 302 is poured by concrete;
the lower part of the reinforcing bars 302 are anchored into the ground to achieve the connection of the cantilever base 3 to the ground.
Wherein, a plurality of groups of tie bar connecting pieces are arranged at intervals along the extension direction of the cantilever 1;
each group of tie bar connecting pieces comprises two tie bar connecting pieces which are symmetrically arranged along the width direction of the cantilever 1;
two lacing wires 505 are connected to each lacing wire connector.
Further, the method comprises the following steps:
the tie bar connector of the present embodiment is configured as a bent structure;
the lacing wire connecting piece includes:
a first body 501 extending along the upper surface of the cantilever 1; and
a second body 502 extending along a side of the cantilever 1;
the first body 501 and the second body 502 are integrally formed, and the joint of the first body 501 and the second body 502 is in transition connection through a circular arc surface;
the first body 501 is connected to the cantilever 1 by a plurality of rivets, and the second body 502 is connected to the cantilever 1 by a plurality of rivets;
the middle of the first body 501 has a first lacing connection 503 perpendicular to the first body 501, and the middle of the second body 502 has a second lacing connection 504 perpendicular to the second body 502;
the two tie bars 505 correspond to one tie bar connecting part respectively;
the tie bar 505 connected to the first tie bar connecting part 503 extends toward the cantilever girder 2;
the tie bar 505 connected to the second tie bar connecting part 504 is in contact with the surface of the circular arc surface to extend toward the cantilever girder 2.
First, the present embodiment symmetrically provides tie bar connectors on two sides of the cantilever 1, the tie bar connectors are bent structures and have the first body 501 and the second body 502, the present embodiment can be formed by bending angle steel or steel plates, when using angle steel, corners need to be processed into round corner structures, and the bent steel plates also process the turning points by rounding corners. In addition, in order to improve the connection stability of the tie bar connecting piece and the cantilever 1, the connection is realized by the riveting pieces distributed in a dot matrix manner, the rivet column is good in effect, and meanwhile, the first tie bar connecting part 503 and the second tie bar connecting part 504 of the embodiment also need to be partially anchored into the cantilever 1 and correspondingly stretch the tie bar 505, so that the connection of the stretching points can be realized from two directions.
Preferably, the bottom of the cantilever 1 of the present embodiment is formed as a cantilever engagement portion 101 that engages with the support pier 4;
the cantilever matching part 101 comprises a cantilever matching part metal frame, a cantilever bottom plate 102 is arranged on one side of the cantilever matching part metal frame facing the support pier, and a cantilever top plate 103 is arranged on one side of the cantilever matching part metal frame far away from the support pier 4;
the metal frame of the cantilever matching part is circumferentially provided with a cantilever side plate 104 connected with the cantilever bottom plate 102 and the cantilever top plate 103;
a plurality of steel bars 105 are distributed in the metal frame of the cantilever matching part and are formed by pouring concrete;
one end of the support pier 4 matched with the cantilever 1 is provided with a support pier top plate 401;
the cantilever bottom plate 102 of the cantilever 1 is connected with the supporting pier top plate 401 through a steel bar 105, and a gap is poured through concrete;
the metal frame of the cantilever mating part is a first reinforcing structure, and the top plate 401 of the support pier is a second reinforcing structure.
The reinforcing steel bars 105 and the cantilever bottom plate 102, and the reinforcing steel bars 105 and the support pier top plate 401 are all fastened and connected through fasteners;
the fastener is a metal sleeve sleeved and fixedly connected on the steel bar 105, and the joint of the metal sleeve and the steel bar 105 and the joint of the metal sleeve and the corresponding metal plate are welded and fixed.
Improve the connection stability of cantilever 1 and support pier 4 with the mode of steel sheet, reinforcing bar 105, the three kinds of combinations of concrete, construction cost does not have very big improvement, but structural stability has certainly improved a lot, can let the structural stability that the bridge floor supported improve a lot of, and simultaneously, the joining of steel sheet can bear bigger stress.
In the technical scheme, the bridge deck pavement structure with the large-gradient long cantilever provided by the invention has the following beneficial effects:
two tie bars 505 are designed at each stretching point of the cantilever 1 and the cantilever vertical beam 2, and the connection with the cantilever 1 is realized through tie bar connecting pieces, so that the structural stability is good, the number of the tie bars 505 is two times that of the existing tie bars, and the stability of the cantilever 1 support is also improved; the connection strength of the cantilever 1 and the support pier 4 is improved in a steel plate and concrete mode, the stability of the long cantilever bridge deck is further improved, and construction is convenient and fast.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (6)
1. Long cantilever bridge deck pavement structure of heavy grade, its characterized in that, this structure includes:
a cantilever (1);
a plurality of support piers (4) which are supported at the bottom of the cantilever (1) and are distributed at intervals; and
the cantilever vertical beam (2) is positioned in the middle of the bridge;
one end of the cantilever (1) extends to the end part of the bridge and is connected with a cantilever foundation (3) at the end part, and the other end of the cantilever (1) extends towards the cantilever vertical beam (2) in an inclined way and is connected with the cantilever vertical beam (2) through a plurality of groups of lacing wire mechanisms (5) so as to keep the position of the cantilever (1);
each group of the lacing wire mechanisms (5) at least comprises two lacing wires (505);
a first reinforcing structure is arranged on one side, matched with the supporting pier (4), of the cantilever (1), and a second reinforcing structure is arranged on one side, matched with the cantilever (1), of the supporting pier (4);
a plurality of reinforcing parts are distributed between the first reinforcing structure and the second reinforcing structure along the direction vertical to the first reinforcing structure and the second reinforcing structure, and the plurality of reinforcing parts are distributed on the matching surfaces of the cantilever (1) and the support pier (4) in a lattice mode.
2. A large-gradient long-cantilever deck pavement structure according to claim 1, wherein the cantilever foundation (3) is arranged at the end part of the bridge, the cantilever foundation (3) comprises a metal frame (301) and a plurality of reinforcing ribs (302) distributed at intervals inside the metal frame (301), and the space between the metal frame (301) and the reinforcing ribs (302) is poured by concrete;
the lower part of the reinforcing rib (302) is anchored into the ground to realize the connection of the cantilever foundation (3) and the ground.
3. The bridge deck pavement structure of the large-gradient long cantilever according to claim 1, characterized in that a plurality of groups of tie bar connectors are arranged at intervals along the extension direction of the cantilever (1);
each group of the lacing wire connecting pieces comprises two lacing wire connecting pieces which are symmetrically arranged along the width direction of the cantilever (1);
each lacing wire connecting piece is connected with two lacing wires (505).
4. The high-gradient long-cantilever deck pavement structure according to claim 3, wherein the tie bar connectors are configured as a bent structure;
the lacing wire connecting piece comprises:
a first body (501) extending along an upper surface of the cantilever (1); and
a second body (502) extending along a side of the cantilever (1);
the first body (501) and the second body (502) are integrally formed, and the joint of the first body (501) and the second body (502) is in transition connection through a circular arc surface;
the first body (501) is connected with the cantilever (1) by a plurality of rivets, and the second body (502) is connected with the cantilever (1) by a plurality of rivets;
the middle part of the first body (501) is provided with a first lacing wire connecting part (503) which is vertical to the first body (501), and the middle part of the second body (502) is provided with a second lacing wire connecting part (504) which is vertical to the second body (502);
the two lacing wires (505) respectively correspond to one lacing wire connecting part;
the tie bar (505) connected to the first tie bar connecting part (503) extends towards the cantilever vertical beam (2);
the tie bars (505) connected to the second tie bar connecting parts (504) are in contact with the surface of the arc surface to extend toward the cantilever vertical beam (2).
5. A high-gradient long-cantilever deck pavement structure according to claim 1, wherein the bottom of the cantilever (1) is formed as a cantilever engaging portion (101) engaged with the support pier (4);
the cantilever matching part (101) comprises a cantilever matching part metal frame, a cantilever bottom plate (102) is arranged on one side, facing the support pier (4), of the cantilever matching part metal frame, and a cantilever top plate (103) is arranged on one side, away from the support pier (4), of the cantilever matching part metal frame;
the metal frame of the cantilever matching part is circumferentially provided with a cantilever side plate (104) connected with the cantilever bottom plate (102) and the cantilever top plate (103);
a plurality of steel bars (105) are distributed in the metal frame of the cantilever matching part and are formed by pouring concrete;
one end of the support pier (4) matched with the cantilever (1) is provided with a support pier top plate (401);
the cantilever bottom plate (102) of the cantilever (1) is connected with the support pier top plate (401) through the steel bar (105), and a gap is formed by pouring concrete;
the metal frame of the cantilever matching part is the first reinforcing structure, and the top plate (401) of the support pier is the second reinforcing structure.
6. The bridge deck pavement structure of the large-gradient long cantilever according to claim 5, wherein the reinforcing steel bars (105) and the cantilever bottom plate (102) and the reinforcing steel bars (1) and the support pier top plate (401) are fixedly connected through fasteners;
the fastener for the cover establish and link firmly in metal covering on reinforcing bar (105), the metal covering with the junction of reinforcing bar (105) and the metal covering is with the junction welded fastening of corresponding metal sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111395219.2A CN114277683B (en) | 2021-11-23 | 2021-11-23 | Large-gradient long-cantilever bridge deck pavement structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111395219.2A CN114277683B (en) | 2021-11-23 | 2021-11-23 | Large-gradient long-cantilever bridge deck pavement structure |
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| CN114277683A true CN114277683A (en) | 2022-04-05 |
| CN114277683B CN114277683B (en) | 2024-03-19 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203729193U (en) * | 2014-01-26 | 2014-07-23 | 长安大学 | Low tower stay cable reinforced T-type rigid framework system with suspension beams |
| DE102013007635A1 (en) * | 2013-05-21 | 2014-11-27 | Peter Wagner | Cable-stayed bridge with hybrid stiffening beam |
| CN206971094U (en) * | 2017-05-12 | 2018-02-06 | 中国建筑第八工程局有限公司 | A kind of reinforcement system of T-shaped rigid frame bridge |
| CN109235285A (en) * | 2018-09-21 | 2019-01-18 | 中铁第四勘察设计院集团有限公司 | A kind of LONG-SPAN RAILWAY reinforced concrete arch bridge cantilever pouring system and construction method |
| CN210368674U (en) * | 2019-05-06 | 2020-04-21 | 武汉理工大学 | Bridge cantilever pouring construction device based on inclined pull buckle hanging |
| CN210621476U (en) * | 2019-07-12 | 2020-05-26 | 上海城建市政工程（集团）有限公司 | Segment prefabricated bent cap cantilever assembling construction device |
| CN113494055A (en) * | 2021-08-10 | 2021-10-12 | 中建市政工程有限公司 | Double-locking structure for closure section of long-span bridge and construction method |
| KR102312616B1 (en) * | 2021-07-01 | 2021-10-15 | 한국건설기술연구원 | System and Method for Monitoring Bridge Cable |
-
2021
- 2021-11-23 CN CN202111395219.2A patent/CN114277683B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013007635A1 (en) * | 2013-05-21 | 2014-11-27 | Peter Wagner | Cable-stayed bridge with hybrid stiffening beam |
| CN203729193U (en) * | 2014-01-26 | 2014-07-23 | 长安大学 | Low tower stay cable reinforced T-type rigid framework system with suspension beams |
| CN206971094U (en) * | 2017-05-12 | 2018-02-06 | 中国建筑第八工程局有限公司 | A kind of reinforcement system of T-shaped rigid frame bridge |
| CN109235285A (en) * | 2018-09-21 | 2019-01-18 | 中铁第四勘察设计院集团有限公司 | A kind of LONG-SPAN RAILWAY reinforced concrete arch bridge cantilever pouring system and construction method |
| CN210368674U (en) * | 2019-05-06 | 2020-04-21 | 武汉理工大学 | Bridge cantilever pouring construction device based on inclined pull buckle hanging |
| CN210621476U (en) * | 2019-07-12 | 2020-05-26 | 上海城建市政工程（集团）有限公司 | Segment prefabricated bent cap cantilever assembling construction device |
| KR102312616B1 (en) * | 2021-07-01 | 2021-10-15 | 한국건설기술연구원 | System and Method for Monitoring Bridge Cable |
| CN113494055A (en) * | 2021-08-10 | 2021-10-12 | 中建市政工程有限公司 | Double-locking structure for closure section of long-span bridge and construction method |
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| CN114277683B (en) | 2024-03-19 |
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