CN216640288U - Tower-passing sliding platform for steel box girder of cable-stayed bridge - Google Patents
Tower-passing sliding platform for steel box girder of cable-stayed bridge Download PDFInfo
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- CN216640288U CN216640288U CN202123253616.4U CN202123253616U CN216640288U CN 216640288 U CN216640288 U CN 216640288U CN 202123253616 U CN202123253616 U CN 202123253616U CN 216640288 U CN216640288 U CN 216640288U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 182
- 239000010959 steel Substances 0.000 title claims abstract description 182
- 238000002360 preparation method Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses a tower-passing sliding platform for a steel box girder of a cable-stayed bridge, which comprises a left amplitude sliding platform and a right amplitude sliding platform which have the same structure and are symmetrically arranged on the left side and the right side of a main tower; the left and right sliding platforms respectively comprise foundation steel pipe piles, fourteen pile top cross beams, two stressed longitudinal beams, a plurality of distribution beams, two sliding tracks, a platform panel and a plurality of sliding devices; fourteen rows of rock-socketed steel pipe piles are adopted as the foundation steel pipe piles; fourteen pile top cross beams are correspondingly arranged on the fourteen rows of steel pipe piles one by one; two stressed longitudinal beams are placed on fourteen pile top cross beams, and each stressed longitudinal beam is composed of twelve bailey frames; a plurality of distributing beams are arranged on the two stressed longitudinal beams at intervals; the two sliding rails and the two stressed longitudinal beams are arranged on the distribution beam in a one-to-one correspondence manner; the platform panel is laid on the distribution beams in a mode of staggering two sliding tracks; a plurality of sliding devices are arranged on the two sliding tracks. The utility model has stable structure and ensures the convenience and safety of the construction of the tower-passing beam section.
Description
Technical Field
The utility model relates to the field of bridge construction, in particular to a tower-passing sliding platform for a steel box girder of a cable-stayed bridge.
Background
The steel box girder is widely applied to various bridges. In urban bridges or railway bridges, steel box girders are adopted as girder bodies. The steel box girder is the performance of the mature application of the steel box girder, and simultaneously, the possibility is brought to the diversified construction of the steel box girder. The utility model relates to a cable-stayed bridge of a double-tower double-cable-plane semi-floating body system in the east-west direction. The east and west side spans are respectively provided with two auxiliary piers and one transition pier, the main span 658m, the west side span length 210m and the east side span length 240m are arranged in a specific arrangement of (70+70+70+658+100+70+70) m, wherein the east side 100m spans a river levee (see figure 1). The west side span and the side span outside the east side embankment adopt concrete box girder structures which are heavy and convenient for construction by a support method; the main span is located in water and the large embankment section of the east river side span is limited by the span, and a steel box girder which is light in weight and convenient for cantilever assembly construction is adopted. The main beam is a separated double-box beam structure, and the middles of two boxes are connected by a cross beam. The east main tower and the steel box girder between the east to side span auxiliary piers are divided into 10 sections. All the beam sections are lifted by the floating crane after being transported to the site by the barge, and the 10 sections of beam sections are close to the large dike and the east bank, so that the barge cannot be close to the large dike and the barge cannot be close to the site. However, the 10 sections of beam sections need to slide through the east-side main tower area, so that the beams of the 10 sections of beam sections need to be disconnected, the beams are hoisted to the sliding platform in a segmented mode through the floating crane, the beams are welded to form the integral steel box beam section after sliding through the east-side main tower area, then the sliding rail at the top of the sliding platform is used for integrally sliding in place, the elevation of each beam section and the gap of the butt joint face are accurately adjusted, the beam sections are positioned and welded, and steel-concrete combination is completed with the concrete box beam on the east bank.
Therefore, the building of the sliding platform becomes the primary condition for the pushing process construction of 10 sections of beam sections.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems and provides a tower-passing sliding platform for a steel box girder of a cable-stayed bridge, which has a stable structure and ensures the convenience and safety of construction of a tower-passing girder section.
The purpose of the utility model is realized as follows: a tower-passing sliding platform for a steel box girder of a cable-stayed bridge comprises a left amplitude sliding platform and a right amplitude sliding platform which have the same structure and are symmetrically arranged on the left side and the right side of a main tower; the left-amplitude sliding platform and the right-amplitude sliding platform respectively comprise foundation steel pipe piles, fourteen pile top cross beams, two stressed longitudinal beams, a plurality of distribution beams, two sliding tracks, a platform panel and a plurality of sliding devices; wherein,
the foundation steel pipe piles adopt rock-embedded steel pipe piles, and a first row of steel pipe piles to a fourteenth row of steel pipe piles are arranged from west to east in sequence; the first row to the fourth row of steel pipe piles are positioned on the west side of the main tower, and the fifth row to the fourteenth row of steel pipe piles are positioned on the east side of the main tower; the thirteenth row of steel pipe piles is arranged on the large embankment; the number of the first row to the fifth row of steel pipe piles and the number of the ninth row to the fourteenth row of steel pipe piles are three steel pipe piles; arranging three steel pipe piles corresponding to the sixth row of steel pipe piles and the eighth row of steel pipe piles on the longitudinal central line of the bridge one by one; the thirteenth row of steel pipe piles and the fourteenth row of steel pipe piles of the right sliding platform are correspondingly arranged in advance of the thirteenth row of steel pipe piles and the fourteenth row of steel pipe piles of the left sliding platform one by one;
fourteen pile top cross beams are correspondingly arranged on the top surfaces of the first row to the fourteenth row of the steel pipe piles one by one;
two stressed longitudinal beams are placed on the top surfaces of fourteen pile top cross beams, and each stressed longitudinal beam comprises twelve bailey frames and two groups of bailey frame connecting pins; the space between twelve Bailey frames is 200mm, and the twelve Bailey frames are divided into a left Bailey frame group and a right Bailey frame group; the length of each bailey truss connecting pin is 1200mm, two ends of each bailey truss connecting pin are respectively provided with a small round hole in the radial direction, and two end faces of each bailey truss connecting pin are respectively provided with a groove in the axial direction; after a group of bailey frame connecting pins are inserted into the pin holes of the left bailey frame group from the left side of twelve bailey frames, respectively inserting a safety card into the small round holes at the two ends of each bailey frame connecting pin, so that the grooves at the two ends of each bailey frame connecting pin clamp the upper chord and the lower chord of the bailey frame at the two ends of the left bailey frame group; after another group of bailey frame connecting pins are inserted into the pin holes of the right bailey frame group from the right sides of the twelve bailey frames, respectively inserting a safety card into the small round holes at the two ends of each bailey frame connecting pin, so that the grooves at the two ends of the bailey frame connecting pins clamp the upper chords and the lower chords of the bailey frames at the two ends of the right bailey frame group;
fifteen lateral limiting frames are respectively arranged on two sides of each stressed longitudinal beam, each lateral limiting frame is made of channel steel and comprises a limiting straight beam connected to the top surface of the pile top cross beam and an inclined supporting beam connected between the outer side surface of the upper part of the limiting straight beam and the top surface of the pile top cross beam;
a plurality of distributing beams are arranged on the top surfaces of the two stressed longitudinal beams at intervals;
each sliding track comprises two sliding rail bases and two guide rails; the two slide rail bases are arranged on the top surface of the distribution beam at intervals; the two guide rails are fixed on the top surfaces of the two slide rail bases in a one-to-one correspondence manner; the two sliding rails and the two stressed longitudinal beams are arranged on the top surface of the distribution beam in a one-to-one correspondence manner;
the platform panel is laid on the top surfaces of the distribution beams in a mode of staggering two sliding tracks;
and the plurality of sliding devices are arranged on the two sliding rails, and each sliding device comprises a rail clamping device and a pushing oil cylinder arranged on the rail clamping device.
The tower-passing sliding platform for the steel box girder of the cable-stayed bridge is characterized in that two layers of longitudinal connection are arranged between the first row of steel pipe piles and the second row of steel pipe piles, between the second row of steel pipe piles and the third row of steel pipe piles, between the third row of steel pipe piles and the fourth row of steel pipe piles, and one layer of longitudinal connection is arranged between the fourth row of steel pipe piles and the fifth row of steel pipe piles; two layers of longitudinal connection are also arranged between the fifth row of steel pipe piles and the sixth row of steel pipe piles, between the sixth row of steel pipe piles and the seventh row of steel pipe piles, between the seventh row of steel pipe piles and the eighth row of steel pipe piles, and between the eighth row of steel pipe piles and the ninth row of steel pipe piles; a layer of longitudinal connection is arranged at the upper part between the ninth row of steel pipe piles and the tenth row of steel pipe piles, a steel pipe longitudinal connection is arranged at the lower part, a layer of longitudinal connection is arranged at the upper part between the tenth row of steel pipe piles and the eleventh row of steel pipe piles, and a steel pipe longitudinal connection is arranged at the upper part between the eleventh row of steel pipe piles and the twelfth row of steel pipe piles; and transverse connection is arranged between each row of steel pipe piles of the left sliding platform and between each row of steel pipe piles of the right sliding platform.
The cross-tower sliding platform for the steel box girder of the cable-stayed bridge is characterized in that the pile top cross beam is made of double-spliced H-shaped steel, and twelve stiffening plates in one-to-one correspondence with twelve Bailey frames are welded on a web plate of the pile top cross beam corresponding to each longitudinal main girder.
The above-mentioned cross tower sliding platform for cable-stay bridge steel box girder, wherein, setting up a longeron separately in the both sides of two atress longerons, every longeron is fixed on the top surface of pile bolck crossbeam and is supported by the square stand that the double-pin channel-section steel constitutes by fifteen piece one-to-one.
The tower-passing sliding platform for the steel box girder of the cable-stayed bridge has the following characteristics:
1) welding stiffening plates at the web plates of the pile top cross beams right below the corresponding four stressed longitudinal beams for reinforcement;
2) because the Bailey frames are adopted as the stressed longitudinal beams, the transverse rigidity of the Bailey frames is weaker, the limiting brackets are respectively arranged on the two sides of the Bailey frames at the cross beam of the pile top, the Bailey beams are limited transversely, and the transverse rigidity of the Bailey beams is enhanced; the limiting bracket can replace a flower window of a traditional bailey frame;
3) because the space between the twelve bailey frames forming each stressed longitudinal beam is small, and the traditional bailey pins are insufficient in connecting operation space, the special long bailey connecting pins are adopted, the two sides of the bailey frames can be installed, and the six bailey frames can be connected simultaneously, so that the problem of difficult operation due to narrow space is solved;
4) the utility model has short erection period, less auxiliary equipment and stable structure, and not only ensures the convenience of construction of the tower-passing beam section, but also ensures the construction safety.
Drawings
FIG. 1 is a longitudinal elevation view of a steel box girder of a cable-stayed bridge according to the present invention;
FIG. 2 is a plan view of the tower-passing sliding platform for the steel box girder of the cable-stayed bridge according to the present invention;
FIG. 3 is a longitudinal elevation view of the tower-passing skidding platform for a cable-stayed bridge steel box girder of the present invention;
FIG. 4 is a cross-sectional view of the tower-passing skidding platform for steel box girders of cable-stayed bridges according to the present invention;
FIG. 5 is a detailed structural view of a stressed longitudinal beam in the tower-passing sliding platform of the utility model;
fig. 6 is a detailed structural view of a bailey frame connecting pin in the tower-passing sliding platform.
Detailed Description
The utility model will be further explained with reference to the drawings.
Referring to fig. 2 to 6, the tower-passing sliding platform for the steel box girder of the cable-stayed bridge of the present invention includes a left sliding platform and a right sliding platform which have the same structure and are symmetrically disposed on the left and right sides of the main tower, and both the left sliding platform and the right sliding platform include foundation steel pipe piles, fourteen pile top beams 20, two stressed longitudinal beams 30, a plurality of distribution beams 40, two sliding rails 50, a platform panel 60, and a plurality of sliding devices 70.
The foundation steel pipe piles are rock-socketed steel pipe piles, and a first row 101 to a fourteenth row 114 of steel pipe piles are arranged in sequence from west to east; the first row 101 to the fourth row 104 of steel pipe piles are positioned on the west side of the main tower 100, and the fifth row 105 to the fourteenth row 114 of steel pipe piles are positioned on the east side of the main tower 100; the thirteenth row of steel pipe piles 113 is positioned on the levee 200.
The number of the first row 101 to the fifth row 105 and the number of the ninth row 109 to the fourteenth row 114 are three steel pipe piles; arranging three steel pipe piles corresponding to the sixth row of steel pipe piles 106 and the seventh row of steel pipe piles and the eighth row of steel pipe piles 108 on the longitudinal central line of the bridge one by one; the thirteenth row of steel pipe piles 113 and the fourteenth row of steel pipe piles 114 of the right sliding platform are arranged in one-to-one correspondence in advance of the thirteenth row of steel pipe piles 113 'and the fourteenth row of steel pipe piles 114' of the left sliding platform;
two layers of longitudinal connection are arranged between a first row of steel pipe piles 101 and a second row of steel pipe piles 102, between the second row of steel pipe piles 102 and a third row of steel pipe piles 103, between the third row of steel pipe piles 103 and a fourth row of steel pipe piles 104, and one layer of longitudinal connection 116 is arranged between the fourth row of steel pipe piles 104 and a fifth row of steel pipe piles 105; two-layer longitudinal connection is also arranged between the fifth row of steel pipe piles 105 and the sixth row of steel pipe piles 106, between the sixth row of steel pipe piles 106 and the seventh row of steel pipe piles 107, between the seventh row of steel pipe piles 107 and the eighth row of steel pipe piles 108, and between the eighth row of steel pipe piles 108 and the ninth row of steel pipe piles 109; one-layer longitudinal connection is arranged at the upper part between the ninth row of steel pipe piles 109 and the tenth row of steel pipe piles 110, one steel pipe longitudinal connection 118 is arranged at the lower part, one-layer longitudinal connection is arranged at the upper part between the tenth row of steel pipe piles 110 and the eleventh row of steel pipe piles 111, and one steel pipe longitudinal connection 118 is arranged at the upper part between the eleventh row of steel pipe piles 111 and the twelfth row of steel pipe piles 112. Transverse connections are arranged between each row of steel pipe piles of the left sliding platform and each row of steel pipe piles of the right sliding platform; both the longitudinal and lateral connections are made of upper and lower steel pipe stringers 116 and channel steel braces 117 connected between the upper and lower steel pipe stringers 116.
Fourteen pile top cross beams 20 are correspondingly arranged on the top surfaces of the first row of steel pipe piles 101 to the fourteenth row of steel pipe piles 115 one by one; the pile top beam 20 adopts double-spliced H-shaped steel.
The two stressed longitudinal beams 30 are placed on the top surfaces of fourteen pile top cross beams 50; each stressed longitudinal beam 30 comprises twelve bailey frames 300 and two groups of bailey frame connecting pins 31; the space between twelve Bailey frames 300 is 200mm, and the twelve Bailey frames 300 are divided into a left Bailey frame group and a right Bailey frame group; the length of each bailey bracket connecting pin 31 is 1200mm, two ends of each bailey bracket connecting pin 301 are respectively provided with a small round hole 311 in the radial direction, and two end faces of each bailey bracket connecting pin 31 are respectively provided with a groove 312 in the axial direction; after a group of bailey frame connecting pins are inserted into the pin holes of the left bailey frame group from the left side of twelve bailey frames, respectively inserting one safety card into the small round holes at the two ends of each bailey frame connecting pin, so that the grooves at the two ends of the bailey frame connecting pins clamp the upper chord and the lower chord of the bailey frame at the two ends of the left bailey frame group; after another group of bailey frame connecting pins are inserted into the pin holes of the right bailey frame group from the right sides of the twelve bailey frames, respectively inserting a safety card into the small round holes at the two ends of each bailey frame connecting pin, so that the grooves at the two ends of the bailey frame connecting pins clamp the upper chords and the lower chords of the bailey frames at the two ends of the right bailey frame group;
fifteen lateral limiting frames 32 are respectively arranged on two sides of each stressed longitudinal beam 30, each lateral limiting frame 32 is made of channel steel and comprises a limiting straight beam 321 connected to the top surface of the pile top cross beam 20 and an inclined supporting beam 322 connected between the outer side surface of the upper part of the limiting straight beam 321 and the top surface of the pile top cross beam 20;
twelve stiffening plates 200 which correspond to twelve Bailey frames 300 one by one are welded on the web of the pile top cross beam 20 corresponding to each longitudinal main beam 30 at intervals;
two longitudinal beams 34 are respectively arranged at two sides of the two stressed longitudinal beams 30, and each longitudinal beam 34 is fixed on the top surface of the pile top cross beam 20 by fifteen pieces in one-to-one correspondence and supported by a square upright column 33 formed by double-spliced channel steel.
The distribution beams 40 are made of H-shaped steel, and a plurality of distribution beams 40 are arranged on the top surfaces of the two stressed longitudinal beams 30 and the top surfaces of the two longitudinal beams 32 at intervals;
each sliding track 50 comprises two sliding track foundations 50a and two guide rails 50 b; the two slide rail bases 50a are arranged on the top surface of the distribution beam 40 at intervals and are made of H-shaped steel; the two guide rails 50b are fixed on the top surfaces of the two slide rail bases 50a in a one-to-one correspondence manner; the two sliding rails 50 and the two stressed longitudinal beams 30 are correspondingly arranged on the top surface of the distribution beam 40 one by one;
the platform panel 60 is laid on the top surfaces of the distribution beams 40 in a manner of staggering two sliding rails 50, and the guard rail 60A is arranged on the longitudinal outer side of the platform panel 60;
a plurality of sliding devices 70 are arranged on the two sliding rails 50, and each sliding device 70 comprises a rail clamping device 70a and an ejection oil cylinder 70b arranged on the rail clamping device 70 a.
The tower-passing sliding platform for the steel box girder of the cable-stayed bridge comprises the following steps when 10 sections of girder sections are installed in a sliding mode:
(1) installing a sliding device 70 by using a tower crane, adjusting the position of the sliding device 70, and debugging a pump station and a control system;
(2) hoisting the beam section 80 to the rear end of the sliding platform on the west side of the main tower during the normal water level by using the floating crane;
(3) sliding a beam section 80 through a main tower by a sliding device 70 on a sliding track to an east side of the main tower, and then mounting a cross beam to form a complete steel box beam section;
(4) the complete steel box girder section slides in place on the sliding platform;
(5) and after the beam slides in place, the beam falls and is unloaded onto the temporary cushion block for accurate positioning, and the welding of the circumferential weld is completed.
The above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and therefore all equivalent technical solutions should also fall within the scope of the present invention, and should be defined by the claims.
Claims (4)
1. A tower-passing sliding platform for a steel box girder of a cable-stayed bridge comprises a left amplitude sliding platform and a right amplitude sliding platform which have the same structure and are symmetrically arranged on the left side and the right side of a main tower; the left-amplitude sliding platform and the right-amplitude sliding platform respectively comprise foundation steel pipe piles, fourteen pile top cross beams, two stressed longitudinal beams, a plurality of distribution beams, two sliding tracks, a platform panel and a plurality of sliding devices; it is characterized in that the preparation method is characterized in that,
the foundation steel pipe piles adopt rock-socketed steel pipe piles, and a first row of steel pipe piles to a fourteenth row of steel pipe piles are arranged in sequence from west to east; the first row to the fourth row of steel pipe piles are positioned on the west side of the main tower, and the fifth row to the fourteenth row of steel pipe piles are positioned on the east side of the main tower; the thirteenth row of steel pipe piles is arranged on the large embankment; the number of the first row to the fifth row of steel pipe piles and the number of the ninth row to the fourteenth row of steel pipe piles are three steel pipe piles; arranging three steel pipe piles corresponding to the sixth row of steel pipe piles and the eighth row of steel pipe piles on the longitudinal central line of the bridge one by one; the thirteenth row of steel pipe piles and the fourteenth row of steel pipe piles of the right sliding platform are correspondingly arranged in advance of the thirteenth row of steel pipe piles and the fourteenth row of steel pipe piles of the left sliding platform one by one;
fourteen pile top cross beams are correspondingly arranged on the top surfaces of the first row to the fourteenth row of the steel pipe piles one by one;
two stressed longitudinal beams are placed on the top surfaces of fourteen pile top cross beams, and each stressed longitudinal beam comprises twelve bailey frames and two groups of bailey frame connecting pins; the space between twelve Bailey frames is 200mm, and the twelve Bailey frames are uniformly divided into a left Bailey frame group and a right Bailey frame group; the length of each bailey truss connecting pin is 1200mm, two ends of each bailey truss connecting pin are respectively provided with a small round hole in the radial direction, and two end faces of each bailey truss connecting pin are respectively provided with a groove in the axial direction; after a group of bailey frame connecting pins are inserted into the pin holes of the left bailey frame group from the left side of twelve bailey frames, respectively inserting a safety card into the small round holes at the two ends of each bailey frame connecting pin, so that the grooves at the two ends of each bailey frame connecting pin clamp the upper chord and the lower chord of the bailey frame at the two ends of the left bailey frame group; after another group of bailey frame connecting pins are inserted into the pin holes of the right bailey frame group from the right side of the twelve bailey frames, respectively inserting one safety card into the small round holes at the two ends of each bailey frame connecting pin, so that the grooves at the two ends of the bailey frame connecting pins clamp the upper chord and the lower chord of the bailey frames at the two ends of the right bailey frame group;
fifteen lateral limiting frames are respectively arranged on two sides of each stressed longitudinal beam, each lateral limiting frame is made of channel steel and comprises a limiting straight beam connected to the top surface of the pile top cross beam and an inclined supporting beam connected between the outer side surface of the upper part of the limiting straight beam and the top surface of the pile top cross beam;
a plurality of distributing beams are arranged on the top surfaces of the two stressed longitudinal beams at intervals;
each sliding track comprises two sliding rail bases and two guide rails; the two slide rail bases are arranged on the top surface of the distribution beam at intervals; the two guide rails are fixed on the top surfaces of the two slide rail bases in a one-to-one correspondence manner; the two sliding rails and the two stressed longitudinal beams are arranged on the top surface of the distribution beam in a one-to-one correspondence manner;
the platform panel is laid on the top surfaces of the distribution beams in a mode of staggering two sliding tracks;
and the plurality of sliding devices are arranged on the two sliding rails, and each sliding device comprises a rail clamping device and a pushing oil cylinder arranged on the rail clamping device.
2. The tower-passing sliding platform for the cable-stayed bridge steel box girder according to claim 1, wherein two layers of longitudinal connection are arranged between the first row of steel pipe piles and the second row of steel pipe piles, between the second row of steel pipe piles and the third row of steel pipe piles, between the third row of steel pipe piles and the fourth row of steel pipe piles, and one layer of longitudinal connection is arranged between the fourth row of steel pipe piles and the fifth row of steel pipe piles; two layers of longitudinal connection are also arranged between the fifth row of steel pipe piles and the sixth row of steel pipe piles, between the sixth row of steel pipe piles and the seventh row of steel pipe piles, between the seventh row of steel pipe piles and the eighth row of steel pipe piles, and between the eighth row of steel pipe piles and the ninth row of steel pipe piles; a layer of longitudinal connection is arranged at the upper part between the ninth row of steel pipe piles and the tenth row of steel pipe piles, a steel pipe longitudinal connection is arranged at the lower part, a layer of longitudinal connection is arranged at the upper part between the tenth row of steel pipe piles and the eleventh row of steel pipe piles, and a steel pipe longitudinal connection is arranged at the upper part between the eleventh row of steel pipe piles and the twelfth row of steel pipe piles; and transverse connection is arranged between each row of steel pipe piles of the left sliding platform and between each row of steel pipe piles of the right sliding platform.
3. The cross-tower sliding platform for the steel box girder of the cable-stayed bridge according to claim 1, wherein the pile top cross beam is made of double H-shaped steel, and twelve stiffening plates corresponding to twelve Bailey frames are welded on a web plate of the pile top cross beam corresponding to each longitudinal main girder.
4. The tower-passing sliding platform for the steel box girder of the cable-stayed bridge according to claim 1, wherein two longitudinal beams are respectively arranged at two sides of two stressed longitudinal beams, and each longitudinal beam is supported by fifteen square columns which are fixed on the top surface of the pile top cross beam in a one-to-one correspondence manner and are formed by double-spliced channel steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123253616.4U CN216640288U (en) | 2021-12-22 | 2021-12-22 | Tower-passing sliding platform for steel box girder of cable-stayed bridge |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202123253616.4U CN216640288U (en) | 2021-12-22 | 2021-12-22 | Tower-passing sliding platform for steel box girder of cable-stayed bridge |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115387242A (en) * | 2022-10-12 | 2022-11-25 | 中船第九设计研究院工程有限公司 | Method for erecting sliding support structure of extra-large steel bridge section |
| CN115404783A (en) * | 2022-09-20 | 2022-11-29 | 中船第九设计研究院工程有限公司 | Sliding construction method for super-wide separated steel box girder of super-large cable-stayed bridge |
-
2021
- 2021-12-22 CN CN202123253616.4U patent/CN216640288U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115404783A (en) * | 2022-09-20 | 2022-11-29 | 中船第九设计研究院工程有限公司 | Sliding construction method for super-wide separated steel box girder of super-large cable-stayed bridge |
| CN115387242A (en) * | 2022-10-12 | 2022-11-25 | 中船第九设计研究院工程有限公司 | Method for erecting sliding support structure of extra-large steel bridge section |
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