CN113430932A - Combined bridge tower of curve-shaped cable-stayed bridge for super-large-span pedestrian landscape and construction method - Google Patents
Combined bridge tower of curve-shaped cable-stayed bridge for super-large-span pedestrian landscape and construction method Download PDFInfo
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- CN113430932A CN113430932A CN202110805631.0A CN202110805631A CN113430932A CN 113430932 A CN113430932 A CN 113430932A CN 202110805631 A CN202110805631 A CN 202110805631A CN 113430932 A CN113430932 A CN 113430932A
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- 238000010276 construction Methods 0.000 title claims abstract description 25
- 239000011513 prestressed concrete Substances 0.000 claims abstract description 64
- 238000007596 consolidation process Methods 0.000 claims abstract description 4
- 239000004567 concrete Substances 0.000 claims description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 238000013459 approach Methods 0.000 claims description 16
- 238000013461 design Methods 0.000 claims description 7
- 229920006334 epoxy coating Polymers 0.000 claims description 6
- 238000011065 in-situ storage Methods 0.000 claims description 6
- 238000004873 anchoring Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/04—Cable-stayed bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
Abstract
The invention belongs to the technical field of highway bridge application, and particularly discloses a combined bridge tower of a curved cable-stayed bridge with an oversized span pedestrian landscape, which comprises a main pile, a plurality of first auxiliary piles and a plurality of second auxiliary piles which are arranged on two sides of the main pile, prestressed concrete piers, first prestressed concrete auxiliary piers and second prestressed concrete auxiliary piers which are respectively arranged on the main pile, the plurality of first auxiliary piles and the plurality of second auxiliary piles, a main beam which is respectively arranged on the prestressed concrete piers, the first prestressed concrete auxiliary piers and the second prestressed concrete auxiliary piers, a bridge deck which is arranged on the main beam, main towers which are arranged on two sides of the bridge deck, and a plurality of pull cables which are respectively connected with the main tower and the main beam, wherein the full bridge adopts a tower-beam-pier consolidation system. The combined bridge tower of the curved cable-stayed bridge with the oversized span and the pedestrian landscape and the construction method have the beneficial effects that: the problems of the existing curved cable-stayed bridge structure and the existing curved cable-stayed bridge structure during construction are solved, and the whole bridge structure is strong in stability and convenient to construct.
Description
Technical Field
The invention belongs to the technical field of highway bridges, and particularly relates to a combined bridge tower of an oversized span pedestrian landscape curved cable-stayed bridge and a construction method.
Background
A cable-stayed bridge (cable-stayed bridge) is used as a cable system, has larger spanning capacity than a beam bridge, and is the most main bridge type of a large-span bridge.
At present, with the great improvement of the bridge construction level in China, a cable-stayed bridge is widely applied, but a curve cable-stayed bridge seems to be just completely exposed at the head corner, but more and more attention is paid to the superiority of the curve cable-stayed bridge, the perfect integral linear continuity and the environment beautifying function of the curve cable-stayed bridge add a beautiful landscape for urban rail transit, and meanwhile, due to the fact that the structure stress and deformation are extremely complex, the construction is inconvenient and the requirement on the structural design is high.
Therefore, based on the problems, the invention provides the combined bridge tower of the curved cable-stayed bridge with the oversized span pedestrian landscape and the construction method.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a combined bridge tower of a curved cable-stayed bridge with an oversized span and a construction method, which solve the problems of the existing curved cable-stayed bridge structure and construction, and have strong structural stability and convenient construction.
The technical scheme is as follows: the combined bridge tower comprises a main pile, a plurality of first auxiliary piles and a plurality of second auxiliary piles which are arranged on two sides of the main pile, prestressed concrete piers, a first prestressed concrete auxiliary pier and a second prestressed concrete auxiliary pier which are respectively arranged on the main pile, the first auxiliary piles and the second auxiliary piles, a main beam which is respectively arranged on the prestressed concrete piers, the first prestressed concrete auxiliary piers and the second prestressed concrete auxiliary piers, a bridge deck which is arranged on the main beam, a main tower which is arranged on two sides of the bridge deck, and a plurality of guys which are respectively connected with the main tower and the main beam, wherein the combined bridge tower is a single-tower double-cable-faced cable-stayed bridge, the span is arranged to be 90+90m, the width of the bridge deck is 38m, the main beam adopts a prestressed concrete structure of a longitudinal and transverse beam system, and the height of the bridge is 2.3 m; two tower legs of a main tower of the bridge deck are arranged in a guy cable area, the height above the bridge deck of the main tower is 68m, the cross section of the main tower is a rectangular cross section, the guy cables are arranged by double-cable-surface fan-shaped cables, the guy cables are parallel steel wire finished cables with high strength and low relaxation of epoxy coatings, and a tower-beam-pier consolidation system is adopted for a full bridge.
According to the technical scheme, the main tower is an A-shaped bridge tower, the cross section of a tower leg is a rectangular cross section, a steel-concrete joint surface is arranged at a position 5m above a bridge floor, the upper surface of the bridge tower is of a steel box structure, the lower surface of the bridge tower is of a concrete structure, the size of the bridge tower above the bridge floor is 5000 x 2500mm, the size of the bridge tower below the bridge floor is of a concrete structure, the upper cross section of the overall size is 6000 x 4000mm, and the lower cross section is 7000 x 5500 m.
According to the technical scheme, the main beam is a rib plate type double-side beam and is made of C50 concrete, and the height of the beam at the center line of a road is 2.3 m; the width of the longitudinal tie beam is 2m, the thickness of the bridge deck plate is 0.22m, the width of the longitudinal tie beam at the tower root is gradually changed to 3m, and the length of a gradual change section is 7 m; the inner cross beam is arranged in the longitudinal bridge direction according to the stress of the main beam and the anchoring position of the inhaul cable, and the thickness of the inner cross beam is 300 mm; the stay cable on the girder is anchored at the bottom of the joint of the longitudinal beam and the inner cross beam, and the anchor with the external bottom is adopted.
This technical scheme, 26 pairs of suspension cable are arranged to the cable full bridge, and interval 2.5m on the tower, interval 6m on the roof beam, cable adopt the parallel steel wire finished product cable that excels in of phi 7 epoxy coating, and the intensity of steel wire is 1670MPa for fpk, and factor of safety is greater than 2.5, wraps up double-deck PE outward, and adjustable area ball pivot is joined in marriage at both ends.
In the technical scheme, the prestressed concrete pier is a phi 1500 cast-in-situ bored pile, a bearing platform is arranged on the prestressed concrete pier, the plane size of the single bearing platform is 20.7m, the height of the single bearing platform is 3.5m along the bridge direction and is multiplied by 15.7m in the transverse bridge direction, and a pile foundation is a friction pile; the first prestressed concrete auxiliary pier and the second prestressed concrete auxiliary pier are phi 1200 cast-in-situ piles respectively, the thickness of a transition pier bearing platform is 2m, and a pile foundation is a friction pile.
This technical scheme, super large stride footpath people's landscape curvilinear figure cable-stay bridge's combination pylon still includes the approach bridge subassembly that sets up at the bridge floor both ends, and the approach bridge subassembly includes a plurality of approach bridge pile foundation, and sets up the concrete slab on a plurality of approach bridge pile foundation respectively, and sets up a plurality of cylinder mound on concrete slab respectively, and sets up the cushion cap on a plurality of cylinder mound respectively, and sets up the prestressed concrete hollow slab beam on the cushion cap respectively, and pour the approach bridge floor on prestressed concrete hollow slab beam respectively.
According to another aspect of the invention, the construction method of the combined bridge tower of the curve-shaped cable-stayed bridge with the oversized span manway landscape comprises the following steps of 1, pouring a plurality of first auxiliary piles and a plurality of second auxiliary piles at two sides of a main pile according to design construction requirements, and then fixedly pouring the prestressed concrete pier, the first prestressed concrete auxiliary pier and the second prestressed concrete auxiliary pier respectively with the plurality of first auxiliary piles and the plurality of second auxiliary piles. Step 2, firstly, bundling main beams on the prestressed concrete pier, the first prestressed concrete auxiliary pier and the second prestressed concrete auxiliary pier according to design construction requirements, pouring concrete to form a bridge floor, and finally erecting a main tower on the bridge floor. Step 3, connecting and fixing the main beam and the main tower through a stay cable, wherein the bottom of the main beam is externally anchored and is connected with one end of the stay cable
According to the technical scheme, when the main tower in the step 2 is hoisted and erected, the temporary support matched with the main tower is further included, the temporary support is hoisted and arranged in the main tower, and a steel pipe upright post is adopted on the ground foundation
The form that the parallel connection support connects and props, the vertical flange joint that adopts of support stand, wherein, before temporary support set up, pre-buried steel sheet 1200mm 20mm is as temporary support basis in tower column base department down.
Compared with the prior art, the combined bridge tower of the oversized span pedestrian landscape curved cable-stayed bridge and the construction method have the beneficial effects that: the problems of the existing curved cable-stayed bridge structure and the existing curved cable-stayed bridge structure during construction are solved, and the whole bridge structure is strong in stability and convenient to construct.
Drawings
FIG. 1 is a schematic side view of a combined pylon of a curved cable-stayed bridge of the ultra-large span pedestrian landscape of the invention;
FIG. 2 is a schematic structural diagram of a tower leg of a main tower of a combined bridge tower of the large-span pedestrian landscape curved cable-stayed bridge according to the invention;
FIG. 3 is a schematic structural view of a main view part of a combined bridge tower of a curved cable-stayed bridge for the long-span pedestrian landscape according to the present invention;
FIG. 4 is a schematic top view of the prestressed concrete pier of the combined pylon of the large-span pedestrian-landscape curved cable-stayed bridge according to the present invention;
FIG. 5 is a schematic structural diagram of a bridge approach assembly of a combined bridge tower of the large-span pedestrian landscape curved cable-stayed bridge of the invention;
FIG. 6 is a schematic structural diagram of a main tower of a combined bridge tower of the large-span pedestrian landscape curved cable-stayed bridge according to the invention;
FIG. 7 is a schematic diagram of a construction hoisting structure of a main tower and a temporary support of a combined bridge tower of the large-span pedestrian landscape curved cable-stayed bridge according to the invention;
fig. 8 and 9 are schematic structural diagrams of the lightning protection system of the combined bridge tower of the large-span pedestrian landscape curved cable-stayed bridge.
Detailed Description
The invention is further elucidated with reference to the drawings and the embodiments.
The combined pylon of the oversized span pedestrian landscape curved cable-stayed bridge shown in figures 1, 2, 3, 4 and 5 comprises a main pile 2, a plurality of first auxiliary piles 4 and a plurality of second auxiliary piles 6 arranged at two sides of the main pile 2, prestressed concrete piers 1, first prestressed concrete auxiliary piers 3 and second prestressed concrete auxiliary piers 5 respectively arranged on the main pile 2, the plurality of first auxiliary piles 4 and the plurality of second auxiliary piles 6, a main girder 15 respectively arranged on the prestressed concrete piers 1, the first prestressed concrete auxiliary piers 3 and the second prestressed concrete auxiliary piers 5, a bridge deck 7 arranged on the main girder 15, main towers 8 arranged at two sides of the bridge deck 7, and a plurality of guy cables 9 respectively connected with the main tower 8 and the main girder 15, wherein the combined pylon is a single-pylon double-rope-faced cable-stayed bridge, the span is arranged as 90+90m and the width is 38m, the main beam 15 adopts a prestressed concrete structure of a longitudinal and transverse beam system, and the beam height is 2.3 m; two tower legs of a main tower 8 of the bridge floor 7 are arranged in a guy cable area, the height above the bridge floor of the main tower 8 is 68m, the cross section of the main tower 8 is a rectangular cross section, the guy cable 9 is arranged by a double-cable-surface fan-shaped cable, the guy cable 9 is a finished cable of epoxy coating high-strength low-relaxation parallel steel wires, and a full bridge is a tower-beam-pier consolidation system.
The combined bridge tower of the curved cable-stayed bridge with the oversized span manway landscape is preferred, the main tower 8 is an A-shaped bridge tower, the cross section of a tower leg is a rectangular cross section, a steel-concrete joint surface is arranged 5m above a bridge floor, a steel box structure is arranged above the bridge floor, a concrete structure is arranged below the bridge tower, the size of the bridge tower above the bridge floor is 5000 multiplied by 2500mm, a concrete structure is arranged below the bridge floor, the upper cross section of the external dimension is 6000 multiplied by 4000mm, and the lower cross section is 7000 multiplied by 5500 m.
Preferably, the combined bridge tower of the curved cable-stayed bridge with the oversized span manway landscape structure adopts a ribbed plate type double-side beam as the main beam 15 and C50 concrete, and the beam height at the center line of the road is 2.3 m; the width of the longitudinal tie beam is 2m, the thickness of the bridge deck plate is 0.22m, the width of the longitudinal tie beam at the tower root is gradually changed to 3m, and the length of a gradual change section is 7 m; the inner cross beam is arranged in the longitudinal bridge direction according to the stress of the main beam and the anchoring position of the inhaul cable, and the thickness of the inner cross beam is 300 mm; the stay cable on the girder is anchored at the bottom of the joint of the longitudinal beam and the inner cross beam, and the anchor with the external bottom is adopted.
The combined bridge tower of the oversized span manned landscape curved cable-stayed bridge is preferable, 26 pairs of stay cables are arranged in a full-bridge mode through the stay cables 9, the distance between the stay cables and the tower is 2.5m, the distance between the stay cables is 6m, the stay cables 9 are made of phi 7 epoxy coating high-strength parallel steel wire finished cables, the strength of the steel wires is fpk-1670 MPa, the safety coefficient is greater than 2.5, double-layer PE is wrapped outside, and the two ends of the stay cables are matched with adjustable type spherical hinges.
The combined bridge tower of the curved cable-stayed bridge with the ultra-large span manway landscape structure is preferred, the prestressed concrete pier 1 is a phi 1500 cast-in-situ bored pile, a bearing platform is arranged on the prestressed concrete pier, and the plane size of the single bearing platform is 20.7m along the bridge direction
The length of the pile is 15.7m, the bridge direction is transverse, the height is 3.5m, and the pile foundation is a friction pile; the first prestressed concrete auxiliary pier 3 and the second prestressed concrete auxiliary pier 5 are phi 1200 cast-in-situ bored piles respectively, the thickness of a transition pier bearing platform is 2m, and pile foundations are friction piles.
This combination pylon of super large span manway landscape curve type cable-stay bridge of structure still includes the approach bridge subassembly that sets up at 7 both ends on the bridge floor, and the approach bridge subassembly includes a plurality of approach bridge stake basis 10, and sets up the concrete slab 11 on a plurality of approach bridge stake basis 10 respectively, and sets up a plurality of cylinder mound 12 on concrete slab 11 respectively, and sets up the cushion cap 13 on a plurality of cylinder mound 12 respectively, and sets up the hollow slab girder 14 of prestressed concrete on cushion cap 13 respectively, and pours the approach bridge floor 16 on the hollow slab girder 14 of prestressed concrete respectively.
The construction method of the combined bridge tower of the curve-shaped cable-stayed bridge with the oversized span manway landscape comprises the following steps of 1, pouring a plurality of first auxiliary piles 4 and a plurality of second auxiliary piles 6 on two sides of a main pile 2 according to design construction requirements, and then fixedly pouring a prestressed concrete pier 1, a first prestressed concrete auxiliary pier 3 and a second prestressed concrete auxiliary pier 5 with the plurality of first auxiliary piles 4 and the plurality of second auxiliary piles 6 respectively. Step 2, firstly bundling a main beam 15 on the prestressed concrete pier 1, the first prestressed concrete auxiliary pier 3 and the second prestressed concrete auxiliary pier 5 according to design construction requirements, pouring concrete to form a bridge floor 7, and finally erecting a main tower 8 on the bridge floor 7. Step 3, the main beam 15 and the main tower 8 are fixedly connected through a guy cable 9, wherein the bottom of the main beam 15 is externally anchored and is connected with one end of the guy cable 9
As shown in fig. 6 and 7, the construction method of the combined bridge tower of the curved cable-stayed bridge with the ultra-large span pedestrian landscape comprises the steps that when the main tower 8 in the step 2 is hoisted and erected, the combined bridge tower further comprises a temporary support matched with the main tower, the temporary support is hoisted and arranged in the main tower, and a steel pipe upright post is adopted on the ground foundation
The form that the parallel connection support connects and props, the vertical flange joint that adopts of support stand, wherein, before temporary support set up, pre-buried steel sheet 1200mm 20mm is as temporary support basis in tower column base department down.
The combined pylon of the curved cable-stayed bridge with the ultra-large span pedestrian landscape shown in fig. 8 and 9 further comprises a lightning protection system.
The foregoing is only a preferred embodiment of this invention and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the invention and these modifications should also be considered as the protection scope of the invention.
Claims (8)
1. The combined bridge tower of the curved cable-stayed bridge of the oversized span manned landscape is characterized in that: comprises a main pile (2), a plurality of first auxiliary piles (4) and a plurality of second auxiliary piles (6) which are arranged at two sides of the main pile (2), a prestressed concrete pier (1), a first prestressed concrete auxiliary pier (3) and a second prestressed concrete auxiliary pier (5) which are respectively arranged on the main pile (2), the plurality of first auxiliary piles (4) and the plurality of second auxiliary piles (6), a main beam (15) which is respectively arranged on the prestressed concrete pier (1), the first prestressed concrete auxiliary pier (3) and the second prestressed concrete auxiliary pier (5), a bridge deck (7) which is arranged on the main beam (15), main towers (8) which are arranged at two sides of the bridge deck (7), and a plurality of guy cables (9) which are respectively connected with the main tower (8) and the main beam (15), wherein the combined bridge tower is a single-tower double-cable-side cable-stayed bridge, the span diameter is 90+90m, the width of the bridge deck is 38m, the main beam (15) adopts a prestressed concrete structure of a longitudinal and transverse beam system, and the beam height is 2.3 m; two tower legs of a main tower (8) of the bridge deck (7) are arranged in a guy cable area, the height of the bridge deck of the main tower (8) is higher than 68m, the cross section of the main tower (8) is a rectangular cross section, guys (9) are arranged by double-cable-surface fan-shaped guys, the guys (9) are made of epoxy coating high-strength low-relaxation parallel steel wire finished cables, and a full bridge is made of a tower-beam-pier consolidation system.
2. The combined bridge tower of the curved cable-stayed bridge with the ultra-large span manway landscape according to claim 1, which is characterized in that: the main tower (8) is an A-shaped bridge tower, the cross section of a tower leg is a rectangular cross section, a steel-concrete joint surface is arranged 5m above a bridge floor, a steel box structure is arranged above the bridge floor, a concrete structure is arranged below the bridge tower, the size of the bridge tower above the bridge floor is 5000 x 2500mm, the size of the bridge tower below the bridge floor is a concrete structure, the upper cross section of the overall size is 6000 x 4000mm, and the lower cross section is 7000 x 5500 m.
3. The combined bridge tower of the curved cable-stayed bridge with the ultra-large span manway landscape according to claim 1, which is characterized in that: the main beam (15) adopts a rib plate type double-side beam and C50 concrete, and the height of the beam at the center line of the road is 2.3 m; the width of the longitudinal tie beam is 2m, the thickness of the bridge deck plate is 0.22m, the width of the longitudinal tie beam at the tower root is gradually changed to 3m, and the length of a gradual change section is 7 m; the inner cross beam is arranged in the longitudinal bridge direction according to the stress of the main beam and the anchoring position of the inhaul cable, and the thickness of the inner cross beam is 300 mm; the stay cable on the girder is anchored at the bottom of the joint of the longitudinal beam and the inner cross beam, and the anchor with the external bottom is adopted.
4. The combined bridge tower of the curved cable-stayed bridge with the ultra-large span manway landscape according to claim 1, which is characterized in that: 26 pairs of suspension cables are arranged to cable (9) full bridge, and interval 2.5m on the tower, interval 6m on the roof beam, cable (9) adopt the parallel steel wire finished product cable that excels in of phi 7 epoxy coating, and the intensity of steel wire is 1670MPa for fpk, and factor of safety is greater than 2.5, wraps up double-deck PE outward, and adjustable area ball pivot is joined in marriage at both ends.
5. The combined bridge tower of the curved cable-stayed bridge with the ultra-large span manway landscape according to claim 1, which is characterized in that: the prestressed concrete pier (1) is a phi 1500 cast-in-situ bored pile, a bearing platform is arranged on the prestressed concrete pier, the plane size of the single bearing platform is 20.7m, the height of the single bearing platform is 3.5m along the bridge direction multiplied by 15.7m in the transverse bridge direction, and a pile foundation is a friction pile; the first prestressed concrete auxiliary pier (3) and the second prestressed concrete auxiliary pier (5) are phi 1200 cast-in-situ piles respectively, the thickness of a transition pier bearing platform is 2m, and a pile foundation is a friction pile.
6. The combined bridge tower of the curved cable-stayed bridge with the ultra-large span manway landscape according to claim 1, which is characterized in that: the combined bridge tower of the oversized span pedestrian landscape curved cable-stayed bridge further comprises bridge approach components arranged at two ends of the bridge deck (7), wherein the bridge approach components comprise a plurality of bridge approach pile foundations (10), concrete slabs (11) respectively arranged on the bridge approach pile foundations (10), a plurality of cylindrical piers (12) respectively arranged on the concrete slabs (11), bearing platforms (13) respectively arranged on the cylindrical piers (12), prestressed concrete hollow slab girders (14) respectively arranged on the bearing platforms (13), and bridge approach decks (16) respectively poured on the prestressed concrete hollow slab girders (14).
7. The construction method of the combined bridge tower of the curved cable-stayed bridge with the ultra-large span manned landscape according to claim 1, characterized in that: comprises the following steps of (a) carrying out,
step 1, pouring a plurality of first auxiliary piles (4) and a plurality of second auxiliary piles (6) on two sides of a main pile (2) according to design construction requirements, and then fixedly pouring a prestressed concrete pier (1), a first prestressed concrete auxiliary pier (3) and a second prestressed concrete auxiliary pier (5) with the plurality of first auxiliary piles (4) and the plurality of second auxiliary piles (6) respectively;
step 2, firstly, bundling main beams (15) on a prestressed concrete pier (1), a first prestressed concrete auxiliary pier (3) and a second prestressed concrete auxiliary pier (5) according to design construction requirements, pouring concrete to form a bridge floor (7), and finally erecting a main tower (8) on the bridge floor (7);
and 3, connecting and fixing the main beam (15) and the main tower (8) through a stay cable (9), wherein the bottom of the main beam (15) is externally anchored and is connected with one end of the stay cable (9).
8. The construction method of the combined bridge tower of the curved cable-stayed bridge with the ultra-large span manned landscape according to claim 1, characterized in that: when the main tower (8) in the step 2 is hoisted and erected, the tower further comprises a temporary support matched with the main tower for use, the temporary support is hoisted and arranged in the main tower, and a steel pipe upright post is adopted on the ground foundation
The form that the parallel connection support connects and props, the vertical flange joint that adopts of support stand, wherein, before temporary support set up, pre-buried steel sheet 1200mm 20mm is as temporary support basis in tower column base department down.
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Cited By (2)
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| CN114575235A (en) * | 2022-04-09 | 2022-06-03 | 中交二公局第五工程有限公司 | Bridge structure with separated people and vehicles |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114575236A (en) * | 2022-03-09 | 2022-06-03 | 中铁大桥勘测设计院集团有限公司 | Bridge structure based on pavement is arranged around tower |
| CN114575236B (en) * | 2022-03-09 | 2023-12-29 | 中铁大桥勘测设计院集团有限公司 | Bridge structure based on pavement is around tower arrangement |
| CN114575235A (en) * | 2022-04-09 | 2022-06-03 | 中交二公局第五工程有限公司 | Bridge structure with separated people and vehicles |
| CN114575235B (en) * | 2022-04-09 | 2024-01-26 | 中交二公局第五工程有限公司 | Bridge structure with separated vehicles and people |
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Application publication date: 20210924 |