CN106869032B - A kind of bridge bearing platform constructing tie beam method - Google Patents
A kind of bridge bearing platform constructing tie beam method Download PDFInfo
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- CN106869032B CN106869032B CN201710108953.3A CN201710108953A CN106869032B CN 106869032 B CN106869032 B CN 106869032B CN 201710108953 A CN201710108953 A CN 201710108953A CN 106869032 B CN106869032 B CN 106869032B
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- lifted trunk
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- binder
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Classifications
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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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
- E02D27/14—Pile framings, i.e. piles assembled to form the substructure
Abstract
The present invention relates to bridge construction technology field more particularly to a kind of bridge bearing platform constructing tie beam method, by binder bottom and around set auxiliary steel-pipe pile, after steel lifted trunk bottom plate and side plate are installed, steel lifted trunk carries out cast-in-place construction directly below.The present invention is for marine ultra-large type pier body, it especially proves effective especially by the cushion cap of the dumbbell shaped of binder connection, the overall stability of steel lifted trunk is greatly improved, reinforced concrete drilling pile foundation is saved simultaneously, investment reduction, it uses steel lifted trunk side plate as cushion cap template, can reduce the size of steel lifted trunk, saves construction cost.
Description
Technical field
The present invention relates to bridge construction technology field more particularly to a kind of bridge bearing platform constructing tie beam methods.
Background technique
In water in the construction of bridge, there are have the case where relatively large cushion cap binder between large-scale cushion cap.Dalian south shore
Bridge spanning the sea route design in extra large main road engineering star bay is sufficiently complex, westerly square into main spanning all the way in eastern section access bridge part
It marches forward, route undergoes doubling three times altogether, and four A, B ring road, S line and x-ray one-way roads are finally merged into pair current up and down
Layer bridge.S25 pier and No. S26 are just on multi-thread combined node, and three piers are existed side by side, the row of main line (S, X) and ring road (A, B)
Lane center spacing infinite tendency, and bridge pier is laterally on same mileage section, is analyzed from amechanical angle, at this
Bridge pier will bear greatly to shear and power of toppling.In order to solve this problem, it is ensured that the stability of bridge structure, designing unit pass through
Multi-argument, final to use the scheme that two neighbouring cushion caps are consolidated into an entirety by binder, which is responsible for rigid
Property two cushion caps of connection be an entirety, bottom does not have pile foundation support, is completely in suspended state, and weigh 120t, and binder is high
Degree is the 1/2 of cushion cap, this brings great difficulty to practice of construction all from technological layer.The marine binder of conventional is applied
Work method is prefabricated installation, also needs to be equipped with reinforced concrete drilling pile foundation in work progress, time-consuming.
In order to solve the constructing technology problem of the cushion cap, and is ensuring cushion cap and constructing tie beam quality and reducing security risk
While, steel lifted trunk construction cost is compressed to greatest extent, and providing the completely new cushion cap constructing tie beam method of one kind is particularly important.
Summary of the invention
(1) technical problems to be solved
The present invention provides a kind of bridge bearing platform constructing tie beam method, time-consuming and laborious for solving existing cushion cap constructing tie beam,
The problem that quality, safety be not high and construction cost is high.
(2) technical solution
In order to solve the above technical problem, the present invention provides a kind of bridge bearing platform constructing tie beam methods, comprising the following steps:
S1, pile foundation of bearing platform construction is carried out in the corresponding position of cushion cap；
After the completion of S2, pile foundation of bearing platform construction, the binder corresponding position inserting piling between cushion cap and cushion cap assists steel
Tubular pole system, the auxiliary steel-pipe pile system include being located in the middle inside steel-pipe pile and being symmetrically positioned in the outer of the binder two sides
Side steel-pipe pile, the outside steel-pipe pile are higher than the inside steel-pipe pile, the inside steel-pipe pile, for consolidating the binder, institute
Outside steel-pipe pile is stated, for assisting load-bearing in the construction process；
S3, steel lifted trunk bottom board fixer is installed at the correspondence elevation location on the pile foundation of bearing platform；
S4, steel lifted trunk bottom plate is installed on the board fixer of the steel lifted trunk bottom；In the periphery peace of the steel lifted trunk bottom plate
Steel loading suspension box side sheet, and the box system surrounded to the steel lifted trunk bottom plate and the steel lifted trunk side plate gives inside and outside reinforcing；
After S5, the inside and outside reinforcing of the box system, steel lifted trunk is controlled in the effect of self weight by hydraulic jack or jack
It is lowered into water；
S6, it after the steel lifted trunk is transferred to designed elevation, carries out last positioning and reinforces；
S7, cushion cap and binder bottom concrete are poured；
S8, cushion cap and binder concrete are poured；
S9, the outside steel-pipe pile for removing the steel lifted trunk side plate and binder two sides.
Wherein, in step S2, after the inside steel-pipe pile and the contour installation of outside steel-pipe pile, the inside steel is cut off
Tubular pole is to designed elevation, so that the outside steel-pipe pile is higher than the inside steel-pipe pile.
Wherein, in step S3, the perforation installation positioning joist at the correspondence elevation location on the pile foundation of bearing platform, described
Position installation platform part steel lifted trunk bottom joist on joist；Installation is fixed respectively on the outside steel-pipe pile of the binder two sides
Position beam, the axis of the positioning beam is vertical with the axis of the outside steel-pipe pile, installs binder between the positioning beam of two sides
Part bottom joist.
Wherein, the top of the pile foundation of bearing platform and the top of the inside steel-pipe pile are pierced by the steel lifted trunk bottom plate, institute
The hole between steel lifted trunk bottom plate and the pile foundation of bearing platform and between the steel lifted trunk bottom plate and the inside steel-pipe pile is stated to adopt
Watertight closure is carried out with sheet rubber and keeper plate of steel.
Wherein, the outer wall of the pile foundation of bearing platform is wrapped up in the upper end of the rubber skin, and the lower end of the rubber skin is fitted in institute
It states on steel lifted trunk bottom plate, and is fixed between the steel lifted trunk bottom plate and the keeper plate of steel by the keeper plate of steel.
Wherein, in step S4, the prefabricated completion of steel lifted trunk side plate, then monolith lifting is directly installed on the steel lifted trunk
On bottom plate, the steel lifted trunk bottom plate and the steel lifted trunk side plate are bolted using angle steel flange.
Wherein, permeable hole is opened up on the steel lifted trunk side plate, to reduce water-head inside and outside the steel lifted trunk.
Wherein, the steel lifted trunk side plate, which opens up, is equipped with folding valve at the permeable hole.
Wherein, the auxiliary steel-pipe pile system includes multiple inside steel-pipe piles and multiple outside steel-pipe piles, more
A inside steel-pipe pile is arranged at a column, and multiple outside steel-pipe piles of every side are arranged at a column.
Wherein, it is 72cm that the inside steel-pipe pile and the outside steel-pipe pile, which are all made of diameter, and wall thickness is the spiral of 8mm
Steel pipe column.
(3) beneficial effect
A kind of bridge bearing platform constructing tie beam method provided by the invention, has the following characteristics that compared with the prior art
1, bridge bearing platform construction method of the invention, lead to binder bottom and around set auxiliary steel-pipe pile system, directly
Lower section steel lifted trunk carries out cast-in-place molding, greatly improves the overall stability of steel lifted trunk, while eliminating reinforced concrete drilling
Pile foundation has saved investment；
2, bridge bearing platform construction method of the invention doubles as cushion cap template using steel lifted trunk side plate, reduces steel lifted trunk
Size has saved construction cost, is suitable for on-water bridge bearing platform construction, is particularly suitable for connecting in profundal zone by floated binder
The cushion cap connect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of existing binder cushion cap；
Fig. 2 is the structure chart after the completion of pile foundation of bearing platform provided by the invention construction；
Fig. 3~4 are the structure chart after the completion of auxiliary steel-pipe pile system construction provided by the invention；
Fig. 5 is the structure chart after the completion of cushion cap part provided by the invention and the construction of binder part steel lifted trunk bottom joist；
Fig. 6 is the structure chart after the completion of steel lifted trunk construction of bottom plates provided by the invention；
Fig. 7 is the structure chart of implementation side plate installation provided by the invention；
Fig. 8 is the binder suspended deck structure figure after the completion of bridge bearing platform constructing tie beam provided by the invention；
In figure, 1: cushion cap；2: pile foundation of bearing platform；3: inside steel-pipe pile；4: outside steel-pipe pile；5: binder；6: positioning joist；7:
Cushion cap part bottom joist；8: positioning beam；9: binder part bottom joist；10: steel lifted trunk bottom plate；11: steel lifted trunk side plate.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give better embodiment of the invention.The above is only a preferred embodiment of the present invention, is not intended to limit of the invention special
Sharp range, it is all using equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content, directly or
It connects and is used in other related technical areas, be included within the scope of the present invention.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more
Any and all combinations of relevant listed item.
In deep-sea when the substructure of construction bridges, it can often be related to size greatly and need to be connected by suspension binder
The more pier shaft cushion caps connect, i.e., the structure of binder cushion cap as shown in Figure 1.
The present invention provides a kind of bridge bearing platform constructing tie beam method, time-consuming and laborious for solving existing cushion cap constructing tie beam,
The problem that quality, safety be not high and construction cost is high.
To overcome the shortcomings of existing constructing tie beam, a kind of bridge bearing platform constructing tie beam method is provided in the embodiment of the present invention,
The following steps are included:
S1, the construction of pile foundation of bearing platform 2 is carried out in the corresponding position of cushion cap 1；Wherein, the knot after the completion of pile foundation of bearing platform 2 is constructed
Composition is as shown in Figure 2；
After the completion of S2, pile foundation of bearing platform 2 are constructed, the 5 corresponding position inserting piling of binder between cushion cap 1 and cushion cap 1 assists steel
Tubular pole system, auxiliary steel-pipe pile system include the outside steel pipe for being located in the middle inside steel-pipe pile 3 and being symmetrically positioned in 5 two sides of binder
Stake 4, inside steel-pipe pile 3, for consolidating the binder 5 between cushion cap 1 and cushion cap 1, outside steel-pipe pile 4, in the construction process
Assist load-bearing；Wherein, assist the arrangement position of steel-pipe pile system as shown in Figure 3；
Specifically, during the installation process, after inside steel-pipe pile 3 and the contour installation of outside steel-pipe pile 4, cutting off inside steel-pipe pile
3 to designed elevation, so that outside steel-pipe pile 4 is higher than inside steel-pipe pile；Since inside steel-pipe pile 3 is to support binder 5, outside
Steel-pipe pile 4 is to carry out auxiliary load-bearing when lifting to subsequent steel lifted trunk, and outside steel-pipe pile 4 need to be higher than inside steel-pipe pile
3, therefore, when it is implemented, the steel pipe absolute altitude that need to will be located at the centre of 5 bottom of binder truncates；Wherein, by 3 He of inside steel-pipe pile
Structure chart after the completion of the auxiliary steel-pipe pile system construction that outside steel-pipe pile 4 forms is as shown in Figure 4；
S3, steel lifted trunk bottom board fixer is installed at the correspondence elevation location on pile foundation of bearing platform 2；Specifically, in cushion cap
Perforation installation positioning joist 6 at correspondence elevation location in pile foundation 2, the installation platform part bottom joist 7 on positioning joist 6；?
Positioning beam 8 is installed respectively on the outside steel-pipe pile 5 of 5 two sides of binder, the axis of positioning beam 8 is vertical with the axis of outside steel-pipe pile 4,
Binder part bottom joist 9 is installed between the positioning beam 8 of two sides；Wherein, cushion cap part bottom joist 7 and binder part bottom joist 9 are applied
Structure chart after the completion of work is as shown in Figure 5；
S4, steel lifted trunk bottom plate 10 is installed on cushion cap part bottom joist 7 and binder part bottom joist 9；In steel lifted trunk bottom plate
10 periphery installation steel lifted trunk side plate 11, and to the box system that steel lifted trunk bottom plate 10 and steel lifted trunk side plate 11 surround give in,
External reinforcement；Wherein, the structure chart that steel lifted trunk bottom plate 10 is completed after construction is as shown in Figure 6；The structure chart that steel lifted trunk side plate 11 is installed
As shown in Figure 7；
After steel lifted trunk bottom plate 10 is installed, hangar system is installed at the top of pile foundation of bearing platform 2, hangar system is by steel hanger
It is formed with fining twisted steel sunpender；The top of steel-pipe pile 4 is also equipped with hangar system on the outside, and being set to for the hangar system is held
The hangar system set-up mode at 2 top of platform pile foundation is identical；By setting hangar system at pile foundation of bearing platform 2, it can carry and steel is hung
The lifting equipment or platform as other operations that case carries out hanging operation, at outside steel-pipe pile 4 at the top of hangar system, rise
Heavy equipment can carry certain weight here, so that hydraulic jack or jack are to the control in steel lifted trunk operation；
After the inside and outside reinforcing of S5, box system, cushion cap part bottom joist 10 is extracted, is controlled by hydraulic jack or jack
Steel lifted trunk submerged under the action of self-weight；
S6, it after steel lifted trunk is transferred to designed elevation, carries out last positioning and reinforces；
S7, cushion cap and binder bottom concrete are poured；
S8, cushion cap and binder concrete are poured, realizes pouring for cushion cap 1 and binder 5；
S9, steel lifted trunk side plate 11 and the outside steel-pipe pile 5 positioned at 5 two sides of binder are removed, to complete applying for binder cushion cap
Work；Wherein, cushion cap-binder-cushion cap dumbbell structure figure is as shown in Figure 8 after the completion of construction；
Bridge bearing platform constructing tie beam method provided by the invention is greatly improved by being located at the auxiliary steel-pipe pile below binder
The overall stability of steel lifted trunk, while reinforced concrete drilling pile foundation is eliminated, save investment.In addition, this bridge is held
Platform constructing tie beam method doubles as cushion cap template using steel lifted trunk side plate, reduces the size of steel lifted trunk, has saved construction cost.Cause
This, which is suitable for on-water bridge bearing platform construction, is particularly suitable for connecting in profundal zone by floated binder
Cushion cap.
Bridge bearing platform constructing tie beam method of the invention, by binder bottom and around set auxiliary steel-pipe pile, directly
The cast-in-place molding of steel lifted trunk is transferred, the cushion cap connected for marine ultra-large type pier body, especially dumbbell shaped by binder is especially played
Effect.
Support the technology single-wall steel suspended box cofferdam of the invention bridge bearing platform constructing tie beam method.Core of the invention technology is
It is combined by single-wall steel suspended box cofferdam and in the method that auxiliary steel-pipe pile is set up in binder lower part, is ultra-large type suspension binder waterborne
Formula cushion cap provides a kind of completely new construction method.
In the present embodiment, in step S3 further include:
After cushion cap part hanging box bottom joist 7 is installed, repetition measurement is carried out to its plan-position and absolute altitude, it is subsequent to guarantee
The precision of construction.
In the present embodiment, steel lifted trunk bottom plate is the stringer that the piecemeal assembly of I10 I-shaped steel mesh is welded, and installs steel lifted trunk bottom
Before plate 10, aperture at pile foundation of bearing platform hole location is corresponded on steel lifted trunk bottom plate 10, so that pile foundation of bearing platform 2 is pierced by steel lifted trunk bottom plate
10；Aperture at 3 hole location of steel-pipe pile on the inside of being corresponded on steel lifted trunk bottom plate 10, so that inside steel-pipe pile 3 is pierced by steel lifted trunk bottom plate
10。
In the present embodiment, between steel lifted trunk bottom plate 10 and pile foundation of bearing platform 2 and steel lifted trunk bottom plate 10 and inside steel-pipe pile 3 it
Between hole watertight closure is carried out using sheet rubber and keeper plate of steel.
In the present embodiment, the outer wall of pile foundation of bearing platform is tightly wrapped up in the upper end of rubber skin, and the lower end of rubber skin is fitted in steel and hangs
It on bottom plate, and is fixed between steel lifted trunk bottom plate and keeper plate of steel by keeper plate of steel, realizes water proof and prevents back cover coagulation
Soil leakage.
In the present embodiment, in step S4, steel lifted trunk side plate 11 first according to the size of corresponding cushion cap on job platform group
I.e. prefabricated completion is installed into, then monolith lifting is directly installed on steel lifted trunk bottom plate 10, steel lifted trunk bottom plate 10 and steel lifted trunk side
Plate 11 is bolted using angle steel flange.
In the present embodiment, permeable hole is opened up on steel lifted trunk side plate 11, to reduce water-head inside and outside steel lifted trunk.
In the present embodiment, steel lifted trunk side plate 11, which opens up, is equipped with folding valve at the permeable hole, is switched with facilitating.
In the present embodiment, auxiliary steel-pipe pile system includes multiple inside steel-pipe piles 3 and multiple outside steel-pipe piles 4, it is multiple in
Side steel-pipe pile 3 is arranged at a column, and multiple outside steel-pipe piles 4 of the every side of binder 5 are arranged at a column.Specifically, in 5 bottom of binder
Inside steel-pipe pile 3 is set as 5, is respectively provided with 4 outside steel-pipe piles in every side in 5 outside of binder.
In the present embodiment, inside steel-pipe pile 3 and outside steel-pipe pile 4 are all made of diameter as 72cm, and wall thickness is the spiral of 8mm
Steel pipe column.
In the present embodiment, since 5 top mark height of binder is than 1 top mark height 1.5m of cushion cap, need to height difference part be arranged every
From steel form, by the control slump when casting concrete, to realize that the concrete not channelling of 1 top half of cushion cap is arrived
At binder 5.
It is flat to remove steel construction drilling to bridge bearing platform constructing tie beam method of the invention after pile foundation of bearing platform construction is completed
Platform.For cushion cap part, perforation installation positioning joist and cushion cap part bottom joist, using positioning joist and are held on pile foundation of bearing platform
Steel lifted trunk bottom plate and side plate are installed in the bottom joist load-bearing of platform part, while hangar system is installed at the top of pile foundation of bearing platform, hangar system
It is made of 4 groups of fashioned iron hangers and 16 fining twisted steel sunpenders.For the binder part of suspension, auxiliary steel-pipe pile is beaten in seabed,
Each column in left and right on the outside of one column of binder bottom arrangement, binder.The steel-pipe pile of binder bottom plays firm effect, left and right on the outside of binder
Steel-pipe pile is mainly used for load-bearing.For being also equipped with hangar system at the top of the auxiliary steel-pipe pile of load-bearing, set-up mode is same for two sides
Hangar system on pile foundation of bearing platform.
Then steel lifted trunk bottom plate, steel lifted trunk side plate are successively installed on cushion cap part bottom joist and binder part bottom joist,
And various ways is taken to reinforce entire box system, after being installed, extracts the positioning joist being mounted on pile foundation of bearing platform out, determines
Position beam and bottom joist are slowly lowered under the action of self-weight using the lifting equipment control steel lifted trunk of jack or jack etc.
Water.After transferring to designed elevation, jack or jack are removed, the fashioned iron hanger at top is passed in the self weight of steel lifted trunk by sunpender
On, complete first time stress check calculation.Then underwater bottom concrete is poured, bottom concrete reaches 80% or more design strength
Afterwards, hanging box internal water accumulation can be extracted out, remove joist under hanger and bottom plate, complete second of conversion of stress system.Cut off top
The pile foundation of bearing platform and steel-pipe pile of superelevation part chisel out pile crown, carry out bearing platform construction.Cushion cap concreting is completed and the head that constructed
After saving pier shaft, steel lifted trunk side plate is removed.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of bridge bearing platform constructing tie beam method, which comprises the following steps:
S1, pile foundation of bearing platform construction is carried out in the corresponding position of cushion cap；
After the completion of S2, pile foundation of bearing platform construction, the binder corresponding position inserting piling between cushion cap and cushion cap assists steel-pipe pile
System, the auxiliary steel-pipe pile system includes the outside steel for being located in the middle inside steel-pipe pile and being symmetrically positioned in the binder two sides
Tubular pole, the outside steel-pipe pile are higher than the inside steel-pipe pile, and the inside steel-pipe pile is described outer for consolidating the binder
Side steel-pipe pile, for assisting load-bearing in the construction process；
S3, steel lifted trunk bottom is respectively mounted at the correspondence elevation location on the pile foundation of bearing platform and between two outside steel-pipe piles
Board fixer；
S4, steel lifted trunk bottom plate is installed on the board fixer of the steel lifted trunk bottom；In the periphery installation steel of the steel lifted trunk bottom plate
Suspension box side sheet, and the box system surrounded to the steel lifted trunk bottom plate and the steel lifted trunk side plate gives inside and outside reinforcing；
After S5, the inside and outside reinforcing of the box system, steel lifted trunk is controlled by hydraulic jack or jack and is sunk under the action of self-weight
Enter in water；
S6, it after the steel lifted trunk is transferred to designed elevation, carries out last positioning and reinforces；
S7, cushion cap and binder bottom concrete are poured；
S8, cushion cap and binder concrete are poured；
S9, the outside steel-pipe pile for removing the steel lifted trunk side plate and binder two sides.
2. bridge bearing platform constructing tie beam method according to claim 1, which is characterized in that in step S2, the inside steel
After tubular pole and the contour installation of outside steel-pipe pile, the inside steel-pipe pile is cut off to designed elevation, so that the outside steel pipe
Stake is higher than the inside steel-pipe pile.
3. bridge bearing platform constructing tie beam method according to claim 1, which is characterized in that in step S3, in the cushion cap
Perforation installation positioning joist, the installation platform part steel lifted trunk collet on the positioning joist at correspondence elevation location in pile foundation
Beam；Positioning beam, the axis of the positioning beam and the outside are installed respectively on the outside steel-pipe pile of the binder two sides
The axis of steel-pipe pile is vertical, and binder part bottom joist is installed between the positioning beam of two sides.
4. bridge bearing platform constructing tie beam method according to claim 3, which is characterized in that the top of the pile foundation of bearing platform and
The top of the inside steel-pipe pile is pierced by the steel lifted trunk bottom plate, between the steel lifted trunk bottom plate and the pile foundation of bearing platform and
Hole between the steel lifted trunk bottom plate and the inside steel-pipe pile carries out watertight closure using sheet rubber and keeper plate of steel.
5. bridge bearing platform constructing tie beam method according to claim 4, which is characterized in that wrap up the upper end of the rubber skin
The outer wall of the pile foundation of bearing platform, the lower end of the rubber skin are fitted on the steel lifted trunk bottom plate, and passing through the keeper plate of steel will
It is fixed between the steel lifted trunk bottom plate and the keeper plate of steel.
6. bridge bearing platform constructing tie beam method according to claim 1, which is characterized in that in step S4, the steel lifted trunk
The prefabricated completion of side plate, then monolith lifting are directly installed on the steel lifted trunk bottom plate, and the steel lifted trunk bottom plate is hung with the steel
Case side plate is bolted using angle steel flange.
7. bridge bearing platform constructing tie beam method according to claim 6, which is characterized in that opened up on the steel lifted trunk side plate
Permeable hole, to reduce water-head inside and outside the steel lifted trunk.
8. bridge bearing platform constructing tie beam method according to claim 7, which is characterized in that the steel lifted trunk side plate opens up institute
It states and is equipped with folding valve at permeable hole.
9. bridge bearing platform constructing tie beam method according to claim 1, which is characterized in that the auxiliary steel-pipe pile system packet
Multiple inside steel-pipe piles and multiple outside steel-pipe piles are included, multiple inside steel-pipe piles are arranged at a column, every side
Multiple outside steel-pipe piles are arranged at a column.
10. bridge bearing platform constructing tie beam method according to claim 1, which is characterized in that the inside steel-pipe pile and institute
Stating outside steel-pipe pile and being all made of diameter is 72cm, and wall thickness is the spiral steel pipe column of 8mm.
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| CN108999206B (en) * | 2018-07-02 | 2020-07-21 | 中铁大桥勘测设计院集团有限公司 | Construction method of bridge bearing platform |
| CN112030754A (en) * | 2020-08-19 | 2020-12-04 | 中交路桥建设有限公司 | Construction method of steel structure bridge and steel structure bridge |
| CN113123233B (en) * | 2021-03-03 | 2022-11-25 | 中交二航局第二工程有限公司 | Anchorage design and construction method |
| CN113202026A (en) * | 2021-04-01 | 2021-08-03 | 中铁六局集团有限公司 | Construction method for tie beam between pier columns |
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