CN106948267A - A kind of memorial archway bar formula bridge cable tower king-post method for synchronously constructing - Google Patents
A kind of memorial archway bar formula bridge cable tower king-post method for synchronously constructing Download PDFInfo
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- CN106948267A CN106948267A CN201710241413.2A CN201710241413A CN106948267A CN 106948267 A CN106948267 A CN 106948267A CN 201710241413 A CN201710241413 A CN 201710241413A CN 106948267 A CN106948267 A CN 106948267A
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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 present invention provides a kind of memorial archway bar formula bridge cable tower king-post method for synchronously constructing, comprises the following steps：The 1st, tower crane is installed；2nd, major-minor king-post hypomere king-post synchronous construction；3rd, king-tower post changeover portion, Sarasota crossbeam synchronous construction；4th, the epimere king-post synchronous construction of the stage casing king-post of king-tower post, secondary tower post；5th, the epimere king-post construction of king-tower post, the tower top decoration top cap construction of secondary tower post；6th, the tower top housing of king-tower post is installed, the upper and lower connection beam of major-minor king-post is constructed.The present invention realizes major-minor king-post, crossbeam synchronous construction to greatest extent by the improvement of tooling device, it is to avoid interfering during the asynchronous construction of king-post, the security of construction is improved, while can significantly reduce construction cost and duration.
Description
Technical field
The present invention relates to technical field of building construction, and in particular to a kind of for the same of memorial archway bar formula bridge cable tower king-post
Walk construction method.
Background technology
Communication is one of chief component of socialist construction, and it has very important for developing national economy
Meaning.Bridge is the important component of the transport developments such as highway, railway, road again.Since reform and opening-up, China's political affairs
Control, the fast development of economy, cultural undertakings, bring the climax of transport development, suspension bridge, cable-stayed bridge build increasing, knot
Structure is various informative.Therefore, the construction of suspension bridge, Cable-stayed Bridge Pylon becomes increasingly frequent.How to ensure that suspension bridge, Cable-stayed Bridge Pylon are applied
The security of work, economic rationality, it has also become an emphasis and difficult point in work progress.Common Sarasota have single king-post,
Two king-posts, single Sarasota has the situation of four king-posts few.
The conventional construction method of king-post has sliding formwork, overmolded, cantilever form, hydraulic climbing formwork.Sliding formwork, overmolded low cost, but apply
The exterior concrete of work is second-rate, and construction platform is simple, and security is poor；Pass through lower section between hydraulic climbing formwork guide rail and king-post
Connected with the pre-buried cone shearing resistance external member of climbing of secondary lower two groups of section, while setting the support of 2 attached walls in concrete lateral surface, guide rail formation three
Span continuous beam structure, sets upper mounting plate, platform, middle platform are moved afterwards and hangs 4 platform structures of platform, security preferably, but is constructed
Cost is very high；Cantilever form is between sliding formwork, overmolded and hydraulic climbing formwork, and security and economy are relatively preferable.At present
More than use although four kinds of construction methods have nothing in common with each other, but all do not consider synchronous construction substantially during pylon tower column construction, especially
It is all asynchronous construction of Sarasota of four king-posts, not only causes construction to disturb, there is potential safety hazard, and working procedure increases, and applies
Work is long in time limit.
The content of the invention
The problem of in order to solve to state in background above technology, the present invention makes full use of bar memorial archway formula Sarasota structure special
There is provided a kind of memorial archway bar formula bridge cable tower king-post method for synchronously constructing for point.
The present invention is adopted the following technical scheme that：
A kind of memorial archway bar formula bridge cable tower king-post method for synchronously constructing, the memorial archway bar formula bridge cable tower is held including Sarasota
Platform, the two king-tower posts and two secondary tower posts for being arranged symmetrically in Sarasota cushion cap two ends, and for connecting the rope of two king-tower posts
Tower crossbeam and major-minor king-post second line of a couplet binder, major-minor king-post first line of a couplet binder, synchronous construction side for connecting king-tower post and secondary tower post
Method comprises the following steps：
1）Sarasota cushion cap and tower crane are installed：
Tower crane is arranged on the outside of secondary tower post, is buried tower crane part in place, with Sarasota cushion cap in advance in Sarasota bearing platform construction
Concrete is poured together, and tower crane is installed after the completion of Sarasota bearing platform construction；
2）The hypomere king-post synchronous construction of major and minor king-post：
Cantilever form is installed between tower crane and secondary tower post, derrick support device is installed between major and minor king-post, is carried out major and minor
King-post synchronous construction；
3）The hypomere king-post synchronous construction of king-tower post changeover portion, Sarasota crossbeam and secondary tower post：
After the completion of the hypomere king-post construction of major and minor tower, Sarasota cushion cap foundation ditch is backfilled, casting concrete hardened ground sets up installation
Sarasota crossbeam, while lifting cantilever form and derrick support device, the hypomere king-post of synchronous construction secondary tower post and king-tower post transition
Section；
4）The stage casing king-post of king-tower post, the epimere king-post synchronous construction of secondary tower post：
After the completion of the hypomere king-post construction of king-tower post changeover portion and secondary tower post, lifting cantilever form and derrick support device are synchronous
The stage casing king-post of construction king-tower post and the epimere king-post of secondary tower post；
5）The tower top decoration top cap construction of the epimere king-post, secondary tower post of king-tower post：
After the completion of the epimere king-post construction of secondary tower post, the post construction of pause secondary tower removes derrick support device, in king-tower post close to secondary
Pole bracket and template are installed in king-post side, lift the cantilever form of king-tower post, the epimere king-post and pair of king-tower post of constructing successively
The tower top decoration top cap of king-post；
6）The tower top housing of king-tower post is installed and the upper and lower connection beam construction of major-minor king-post：
According to the crane capacity of tower crane, the tower top housing of king-tower post is subjected to piecemeal segmental machining, hung after the completion of manufacture by tower crane
Tower top is filled to be installed；According to the upper and lower connection beam particular location of main and auxiliary tower, bracket is installed in bottom, main and auxiliary tower of first constructing
Connection beam under upper connection beam, then main and auxiliary tower of constructing.
Step 2）In, the length of the hypomere king-post of major and minor king-post is high from cushion cap top mark up to king-tower post lower end top mark, lifting
Push up elevation location in cantilever form and derrick support device, hypomere king-post to the king-tower post lower end of the major and minor king-post of section construction.
Step 3）In, the hypomere king-post first time synchronous construction of the changeover portion king-post of king-tower post, Sarasota crossbeam and secondary tower post
Chamfering above elevation location under to Sarasota crossbeam chamber, second of synchronous construction to cross rail top chamfering above elevation location；Rope
After the completion of tower construction of beam, the segmented synchronous construction of hypomere king-post of king-tower post changeover portion and secondary tower post to king-tower post changeover portion top
Absolute altitude, secondary tower post hypomere top mark are high.
Step 4）In, the stage casing king-post length of king-tower post is high from king-tower post changeover portion top mark up to secondary tower post epimere top mark,
The epimere king-post length of secondary tower post is high from secondary tower post hypomere top mark up to secondary tower post epimere top mark, according to each construction segmental height
King-post synchronous construction is carried out no more than 4.7m.
Step 5）In, 4.7m is no more than according to each construction segmental height, two sections of epimere king-post for king-tower post of constructing
Afterwards, the tower top decoration top cap of construction secondary tower post is started, the epimere king-post of king-tower post is constructed to king-tower post epimere top mark height；
Because the tower top decoration top cap of secondary tower post has variable cross-section, using the A-frame for retaining cantilever form, according to Mechanical Builds
With the segmented construction of changing section, construction to secondary tower post tower top decoration top cap top mark height.
From above technical scheme, the present invention has the advantages that：
1st, can significantly it reduce construction cost and duration
The method of the adjacent king-post of conventional construction is asynchronous construction, i.e., behind 1~3 section of a king-post of first constructing, then construct
Adjacent king-post section, such a construction method construction period is long.By optimizing improvement to formwork bracing system, by major-minor king-post
Between cantilever shuttering support be changed to derrick geometry design, realize major-minor king-post synchronous construction, synchronous construction section maximum height
Control is in 4.7m.It is such a be designed to accomplish once to be lifted, formwork erection, 2 king-post sections of one-time-concreting, realize to greatest extent
2 adjacent king-post synchronous constructions, largely reduce working procedure, reduce construction period and cost.
2nd, the security of construction is improved
The method of the adjacent king-post of conventional construction is asynchronous construction, i.e., behind 1~3 section of a king-post of first constructing, then construct
Adjacent king-post section, it is to avoid construction is interfered.But the operation of root king-post upper strata section can be to adjacent towers during such a construction method
Post segmental construction causes certain potential safety hazard.By the optimization to formwork bracing system, accomplish adjacent king-post synchronous construction, keep away
Interfering when exempting from the asynchronous construction of king-post, improves the security of construction.
Brief description of the drawings
Fig. 1 is the structural representation of memorial archway bar formula bridge cable tower；
Fig. 2 is that tower crane is set and major-minor king-post hypomere king-post synchronous construction schematic diagram；
Fig. 3 is the hypomere king-post synchronous construction schematic diagram of main king-post changeover portion, Sarasota crossbeam and secondary tower post；
Fig. 4 is the stage casing king-post of main king-post, the epimere king-post synchronous construction schematic diagram of secondary tower post；
Fig. 5 is the epimere king-post of main king-post and the tower top decoration top cap construction schematic diagram of secondary tower post；
Fig. 6 installs for the tower top housing of main king-post, the upper and lower connection beam construction schematic diagram of major-minor king-post；
Fig. 7 is Fig. 4 top view.
In figure：1 is the hypomere king-post of main king-post, and 2 be main king-post changeover portion, and 3 be the stage casing king-post of main king-post, and 4 be king-tower
The epimere king-post of post, 5 be tower top housing, and 6 be the hypomere king-post of secondary tower post, and 7 be the epimere king-post of secondary tower post, and 8 be secondary tower post
Tower top decorates top cap, and 9 be Sarasota crossbeam, and 10 be connection beam under main and auxiliary tower post, and 11 be connection beam on main and auxiliary tower post, and 12 hold for Sarasota
Platform, 13 be tower crane, and 14 be derrick support device, and 15 be cantilever form, and 16 be cantilever form A-frame, 17 for backfill ground or
Original ground, h1 is that cushion cap top mark is high, and h2 is that main king-post lower end top mark is high, and h3 is chamfering above 30cm positions under Sarasota crossbeam chamber
Absolute altitude, h4 is that main king-post changeover portion top mark is high, and h5 is that secondary tower post hypomere top mark is high, and h6 is that secondary tower post epimere top mark is high, and h7 is pair
King-post tower top decoration top cap top mark is high, and h8 is that main king-post epimere top mark is high, and h9 is that housing top mark is high at the top of main king-post, and h10 is horizontal stroke
Beam top chamfer above 30cm positions.
Embodiment
A kind of preferred embodiment to the present invention is described in detail below in conjunction with the accompanying drawings.
The main bridge of this engineering bridge is（22+82+115+22）M single-tower double-span self-anchored suspension bridges, structural system is tower beam point
From half floating system；Sarasota direction across bridge each side 1 major and minor king-post.
As shown in figure 1, the memorial archway bar formula bridge cable tower includes Sarasota cushion cap 12, is arranged symmetrically in Sarasota cushion cap two ends
Two king-tower posts and two secondary tower posts, and for connect two king-tower posts Sarasota crossbeam 9 and for connect king-tower post with
The major-minor king-post second line of a couplet binder 10 of secondary tower post, major-minor king-post first line of a couplet binder 11.King-tower post includes the hypomere king-post 1 of king-tower post, master
King-post changeover portion 2, the stage casing king-post 3 of king-tower post, the epimere king-post 4 and tower top housing 5 of king-tower post.Secondary tower post includes secondary tower post
Hypomere king-post 6, the tower top decoration top cap 8 of the epimere king-post 7 of secondary tower post and secondary tower post.
King-tower pillar height 61.85m, bridge floor above 43.35m, secondary tower pillar height 45.1m, are cast-in-place C50 reinforced concrete structures；
King-tower post under, in, upper king-post strut and the part of housing four constitute, C50 armored concrete is provided between Sarasota, at the top of lower king-post strut
Structural beams；Secondary tower post is made up of upper and lower king-post and the part of tower top decorating structure 3, and lower king-post strut contact is provided between main and auxiliary tower
Beam and upper king-post strut connection beam.The high 9.25m of king-tower lower king-post strut, indulges bridge to 4.5~5.5m of width, 1.02~1.2m of wall thickness, direction across bridge
3.1~4m of width, wall thickness 1.5m；King-tower changeover portion section high 11.65m, 1.0~1.2m of wall thickness；The high 36.35m of upper king-post strut in king-tower,
Bridge is indulged to width 4.5m, direction across bridge width 3m；Beam of main tower size is 3.2m（It is wide）×3.5m（It is high）, top, base plate thickness 0.45m,
Side wall thickness 0.5m；Tower top housing is steel construction, high 6m.The high 22m of secondary tower lower king-post strut, indulges bridge to width 3m, direction across bridge width 2m；It is secondary
The high 19m of tower upper king-post strut, indulges bridge to width 2.4m, direction across bridge width 2m；The high 4.1m of tower top decorating structure.Main and auxiliary tower upper king-post strut is linked
Beam length 2.5m, wide 2.4m, high 1.2~1.7m；Lower king-post strut links beam length 2.5m, wide 3m, high 1.2m.H1=24.127m, h2=
33.377m, h3=37.277m, h4=45.027m, h5=46.227m, h6=65.327m, h7=69.227m, h8=79.977m, h9=
85.977m, h10=40.927m.
Preparation of construction work include measurement and positioning, construction machinery equipment, material, temporary facility, labour, confide a technological secret,
The conventional preparation of construction work such as pre-job training.
The Specific construction step of memorial archway bar formula bridge cable tower king-post method for synchronously constructing is as follows：
The 1st, tower crane is installed
Referring to Fig. 2.From 6013 type tower cranes 13, maximum lifting weight 6t.Tower crane 13 is arranged on the outside of secondary tower post 6, tower crane 13 with
The distance between secondary tower post 6 will meet the requirement that derrick support device is installed, lifted.When Sarasota cushion cap 12 is constructed by tower crane 13
Basic part is buried in place in advance, is poured together with cushion cap concrete.Tower crane 3 is installed after the completion of Sarasota bearing platform construction.
2nd, the hypomere king-post synchronous construction of major-minor king-post
Referring to Fig. 2, Fig. 7.Adjacent main and auxiliary tower post distance is 2~2.5m.Formwork bracing system uses cantilever form 15, and to cantilever
Template optimizes improvement, and cantilever shuttering support between major-minor king-post is changed into derrick support device 14, major-minor king-post is realized
Synchronous construction, synchronous construction section maximum height is controlled within 4.7m.Cantilever form 15 and derrick support device 14 are pacified
Complete to calculate, meeting requesting party can processing and fabricating, installation of marching into the arena, detailed calculating process summary.
The discrepancy in elevation between h1~h2 is 9.25m, point 2 segmental constructions.After the installation of tower crane 13, cantilever form is first installed
15 and its derrick support device 14, the hypomere king-post 1 for major-minor king-post of constructing, 6 first segments.After the completion of first segment construction, carry
Cantilever form and derrick support device are risen, the hypomere king-post of major-minor king-post of constructing to absolute altitude h2=33.377 positions.Reinforcement fabrication is pacified
Dress, template assembly, filling concrete are conventional construction, and concrete is pumped into mould using automotive pump.
3rd, the hypomere king-post synchronous construction of king-tower post changeover portion, Sarasota crossbeam and secondary tower post
Referring to Fig. 3.After the completion of the hypomere king-post construction of major-minor king-post, the foundation ditch of backfill Sarasota cushion cap 12 pours 10~15cm C20
Concrete hardening ground, sets up Sarasota crossbeam 9, using bowl fastening type full framing, installs reinforcing bar and template system, and inner and outer template is equal
Using wooden model.Cantilever form and derrick support device are lifted simultaneously, and the hypomere king-post 6 and king-tower post changeover portion 2 of secondary tower post are installed
Reinforcing bar and template system, changeover portion variable cross-section section are constructed using pole bracket and platform, template is retained using wooden model.Support and mould
Plate system detailed security, which is calculated, to be omited.
The hypomere king-post 6 and king-tower post changeover portion 2 first time synchronous construction of Sarasota crossbeam 9 and secondary tower post are to absolute altitude h3=
37.277m positions, second of synchronous construction to absolute altitude h10=40.927m；After the completion of Sarasota crossbeam 9 is constructed, king-tower post changeover portion 2
With the segmented synchronous construction of hypomere king-post 6 of secondary tower post, but elevation control is respectively absolute altitude h4=45.027m, h5=46.277m.
Sarasota crossbeam removes bottom after tension of prestressed tendon, mud jacking, sealing off and covering anchorage is carried out on the premise of concrete strength meets design requirement
Support.
Reinforcement fabrication installation, template assembly, filling concrete are conventional construction, and concrete is pumped into using automotive pump
Mould.
4th, the epimere king-post synchronous construction of the stage casing king-post of king-tower post, secondary tower post
Referring to Fig. 4.After the completion of the hypomere king-post 6 of king-tower post changeover portion 2 and secondary tower post is constructed, lifting cantilever form and derrick support
Device, construct the stage casing king-post 3 of king-tower post and the epimere king-post 7 of secondary tower post.According to stage casing king-post absolute altitude h4~h6 of king-tower post
The discrepancy in elevation is 20.3m and epimere king-post absolute altitude h5~h6 discrepancy in elevation of secondary tower post is 19.1m, point 5 sections, according to each construction section
Height carries out king-post synchronous construction no more than 4.7m.
Reinforcement fabrication installation, template assembly, filling concrete are conventional construction, and concrete is pumped into using automotive pump
Mould.
5th, the epimere king-post construction of king-tower post, the tower top decoration top cap construction of secondary tower post
Referring to Fig. 5.After the completion of the epimere king-post construction of secondary tower post, the post construction of pause secondary tower removes derrick support device, in king-tower
Post installs pole bracket and template close to secondary tower post side.King-tower post cantilever form 15 is lifted, according to each construction segmental height
Behind 4.5m, 4 two sections of epimere king-post of king-tower post of constructing, construct to absolute altitude h6+9m=74.327m positions, start in king-tower post
The tower top decoration top cap 8 of construction secondary tower post.The epimere king-post 4 of king-tower post continues point 2 segmental constructions to tower top concrete structure
Absolute altitude h8=79.977m.Pre-buried good tower top built-in fitting is noted during construction.
Because the tower top decoration top cap 8 of secondary tower post has variable cross-section and moulding, using reservation cantilever form A-frame 16, mould
Plate is constructed using wooden model, according to 4 segmental constructions of Mechanical Builds and changing section point, construction to top cap absolute altitude h7=
69.227m。
Reinforcement fabrication installation, template assembly, filling concrete are conventional construction, and concrete is pumped into using automotive pump
Mould.
6th, the tower top housing of king-tower post is installed, the upper and lower connection beam of major-minor king-post is constructed.
Referring to Fig. 6.According to the crane capacity of tower crane 13, king-tower post tower top housing 5 is subjected to piecemeal segmental machining, manufacture,
Maximum section weight is no more than 5t.Lifted to tower top and installed by tower crane 13.Meanwhile, according to connection beam above and below main and auxiliary tower 10,
11 particular locations, the bracket that I-steel assembly is welded, installation form construction connection beam, major-minor of first constructing are provided with bottom
Connection beam 10 under connection beam 11 on tower, then main and auxiliary tower of constructing.
Bracket is using self-control steel truss as linking beam support system, and bracket is by pre-buried bracket, transverse distribution beam and indulges
Constituted to distribution beam.Bracket is triangle, and bracket is made up of brace, longeron and built-in fitting.Each part The concrete specification and size are led to
Cross safety and calculate determination：Each 2 brackets in main and auxiliary tower side, upper linking beam bracket spacing is 1.8m, and lower linking beam bracket spacing is
1.8m；Bracket brace be 2 [28a channel-section steels, set angle be 40 °, bracket longeron be 2 [28a channel-section steels；Bracket brace and longeron with
Major-minor tower body built-in fitting is using welding, and brace is with bracket longeron using welding；Transverse distribution beam is I25a I-steel, spacing
50cm；Longitudinal distribution beam is [8 channel-section steels, spacing 30cm；[14a channel-section steel lateral connections are used between each truss.Built-in fitting is used certainly
Steel member processed, and suitably strengthen tower body reinforcing bar at this, connected by welding manner, welding position uses welding by both sides, and by sewing
Plate carrys out reinforced welding intensity.Using 20mm steel plates, welding U-shaped φ 32mm screw-thread steels are used as dowel, lateral arrangement 3 on steel plate
Row, reinforcing bar and steel plate position use welding by both sides, reinforcing bar in steel plate back side insertion tower body length >=70cm, and with tower body steel bar welding
Connect.φ 50mmPVC pipes are buried in tower body concrete, A types node location sets 2 φ 32mm essences to prick screw-thread steel to drawing, and sets
Put double nut.Detailed security calculating process is omited.
By the improvement of tooling device, major-minor king-post, crossbeam synchronous construction are realized to greatest extent, it is to avoid king-post is asynchronous
Interfering during construction, improves the security of construction, while can significantly reduce construction cost and duration.
The above embodiment is only that the preferred embodiment of the present invention is described, not to the model of the present invention
Enclose and be defined, on the premise of design spirit of the present invention is not departed from, technical side of the those of ordinary skill in the art to the present invention
In various modifications and improvement that case is made, the protection domain that claims of the present invention determination all should be fallen into.
Claims (6)
1. a kind of memorial archway bar formula bridge cable tower king-post method for synchronously constructing, the memorial archway bar formula bridge cable tower is held including Sarasota
Platform, the two king-tower posts and two secondary tower posts for being arranged symmetrically in Sarasota cushion cap two ends, and for connecting the rope of two king-tower posts
Tower crossbeam and major-minor king-post second line of a couplet binder, major-minor king-post first line of a couplet binder for connecting king-tower post and secondary tower post, it is characterised in that
Method for synchronously constructing comprises the following steps：
1）Sarasota cushion cap and tower crane are installed：
Tower crane is arranged on the outside of secondary tower post, is buried tower crane part in place, with Sarasota cushion cap in advance in Sarasota bearing platform construction
Concrete is poured together, and tower crane is installed after the completion of Sarasota bearing platform construction；
2）The hypomere king-post synchronous construction of major and minor king-post：
Cantilever form is installed between tower crane and secondary tower post, derrick support device is installed between major and minor king-post, is carried out major and minor
King-post synchronous construction；
3）The hypomere king-post synchronous construction of king-tower post changeover portion, Sarasota crossbeam and secondary tower post：
After the completion of the hypomere king-post construction of major and minor tower, Sarasota cushion cap foundation ditch is backfilled, casting concrete hardened ground sets up installation
Sarasota crossbeam, while lifting cantilever form and derrick support device, the hypomere king-post of synchronous construction secondary tower post and king-tower post transition
Section；
4）The stage casing king-post of king-tower post, the epimere king-post synchronous construction of secondary tower post：
After the completion of the hypomere king-post construction of king-tower post changeover portion and secondary tower post, lifting cantilever form and derrick support device are synchronous
The stage casing king-post of construction king-tower post and the epimere king-post of secondary tower post；
5）The tower top decoration top cap construction of the epimere king-post, secondary tower post of king-tower post：
After the completion of the epimere king-post construction of secondary tower post, the post construction of pause secondary tower removes derrick support device, in king-tower post close to secondary
Pole bracket and template are installed in king-post side, lift the cantilever form of king-tower post, the epimere king-post and pair of king-tower post of constructing successively
The tower top decoration top cap of king-post；
6）The tower top housing of king-tower post is installed and the upper and lower connection beam construction of major-minor king-post：
According to the crane capacity of tower crane, the tower top housing of king-tower post is subjected to piecemeal segmental machining, hung after the completion of manufacture by tower crane
Tower top is filled to be installed；According to the upper and lower connection beam particular location of main and auxiliary tower, bracket is installed in bottom, main and auxiliary tower of first constructing
Connection beam under upper connection beam, then main and auxiliary tower of constructing.
2. memorial archway bar formula bridge cable tower king-post method for synchronously constructing according to claim 1, it is characterised in that step 2）
In, the length of the hypomere king-post of major and minor king-post is high from cushion cap top mark up to king-tower post lower end top mark, lifting cantilever form and derrick
Push up elevation location in support meanss, hypomere king-post to the king-tower post lower end of the major and minor king-post of section construction.
3. memorial archway bar formula bridge cable tower king-post method for synchronously constructing according to claim 1, it is characterised in that step 3）
In, the hypomere king-post first time synchronous construction of the changeover portion king-post of king-tower post, Sarasota crossbeam and secondary tower post to Sarasota crossbeam chamber
Lower chamfering above elevation location, second of synchronous construction to cross rail top chamfering above elevation location；Sarasota construction of beam is completed
Afterwards, under the segmented synchronous construction of the hypomere king-post of king-tower post changeover portion and secondary tower post to king-tower post changeover portion top mark height, secondary tower post
Duan Dingbiao is high.
4. memorial archway bar formula bridge cable tower king-post method for synchronously constructing according to claim 1, it is characterised in that step 4）
In, the stage casing king-post length of king-tower post is high from king-tower post changeover portion top mark up to secondary tower post epimere top mark, the epimere tower of secondary tower post
Column length is high from secondary tower post hypomere top mark up to secondary tower post epimere top mark, enters according to each construction segmental height no more than 4.7m
Row king-post synchronous construction.
5. memorial archway bar formula bridge cable tower king-post method for synchronously constructing according to claim 1, it is characterised in that step 5）
In, 4.7m is no more than according to each construction segmental height, behind two sections of epimere king-post of king-tower post of constructing, starts secondary tower of constructing
The tower top decoration top cap of post, the epimere king-post of king-tower post is constructed to king-tower post epimere top mark height.
6. memorial archway bar formula bridge cable tower king-post method for synchronously constructing according to claim 5, it is characterised in that due to pair
The tower top decoration top cap of king-post has variable cross-section, using the A-frame for retaining cantilever form, according to Mechanical Builds and changes of section
The segmented construction of situation, construction is high to secondary tower post tower top decoration top cap top mark.
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| CN201710241413.2A CN106948267B (en) | 2017-04-13 | 2017-04-13 | A kind of memorial archway bar formula bridge cable tower king-post method for synchronously constructing |
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| CN201710241413.2A CN106948267B (en) | 2017-04-13 | 2017-04-13 | A kind of memorial archway bar formula bridge cable tower king-post method for synchronously constructing |
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| CN201710241413.2A Active CN106948267B (en) | 2017-04-13 | 2017-04-13 | A kind of memorial archway bar formula bridge cable tower king-post method for synchronously constructing |
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| CN107675626A (en) * | 2017-09-05 | 2018-02-09 | 中交二航局第四工程有限公司 | Skin function concrete king-post and crossbeam synchronization pouring construction method |
| CN109989350A (en) * | 2019-03-26 | 2019-07-09 | 中铁七局集团有限公司 | A kind of bridge Sarasota construction method |
| CN115341472A (en) * | 2022-08-04 | 2022-11-15 | 中铁四局集团有限公司 | Construction method for lower cross beam of main tower of highway-railway dual-purpose river-crossing A-type cable-stayed bridge |
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| KR100876074B1 (en) * | 2008-09-22 | 2008-12-26 | (주) 코리아에스이 | Main towers of cable stayed girder bridge and the construction method |
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| CN109989350A (en) * | 2019-03-26 | 2019-07-09 | 中铁七局集团有限公司 | A kind of bridge Sarasota construction method |
| CN115341472A (en) * | 2022-08-04 | 2022-11-15 | 中铁四局集团有限公司 | Construction method for lower cross beam of main tower of highway-railway dual-purpose river-crossing A-type cable-stayed bridge |
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| CN106948267B (en) | 2019-05-14 |
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