CN107964877A - The asymmetric mixing girder stayed-cable bridge horizontal swing structure of super-tonnage and its construction method - Google Patents
The asymmetric mixing girder stayed-cable bridge horizontal swing structure of super-tonnage and its construction method Download PDFInfo
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- CN107964877A CN107964877A CN201711180697.5A CN201711180697A CN107964877A CN 107964877 A CN107964877 A CN 107964877A CN 201711180697 A CN201711180697 A CN 201711180697A CN 107964877 A CN107964877 A CN 107964877A
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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
- E01D21/08—Methods or apparatus specially adapted for erecting or assembling bridges by rotational movement of the bridge or bridge sections
Abstract
The present invention relates to bridge Construction Technology, is specifically the asymmetric mixing girder stayed-cable bridge horizontal swing structure of super-tonnage and its construction method.Including concrete pile, cushion cap, turntable and swivel slide, the cushion cap is divided into cushion cap and lower cushion cap, swivel slide is divided into spike and slideway, upper cushion cap is equipped with top rotary table and spike, lower cushion cap is equipped with lower rotary table, alignment pin and slideway, top rotary table is connected with lower rotary table by alignment pin, and top rotary table is bonded with lower rotary table, spike and slideway fitting.The present invention has remarkable result to solving the problems, such as that current large-tonnage, asymmetric mixing girder stayed-cable bridge Horizontal Swing Construction flow are complicated, construction cost is high, and also have operational procedure is simple, speed of application soon, securely and reliably, low engineering cost many advantages, such as.
Description
Technical field
The present invention relates to bridge Construction Technology, be specifically the asymmetric mixing girder stayed-cable bridge horizontal swing structure of super-tonnage and
Its construction method.
Background technology
Cable-stayed bridge is by the tower of pressure-bearing, the rope of tension and holds a kind of structural system that curved beam body combines, have across
The features such as more ability is big, girder is highly small, reasonable stress.The performance of material can be made full use of since steel is combined with concrete simultaneously
And improve mechanical property and improve economy, mixing girder stayed-cable bridge is increasingly favored be subject to bridge construction person.
Mixing girder stayed-cable bridge refers to that the girder of cable-stayed bridge is made of along the length direction of beam two kinds of different materials, the beam of main span
Body is girder steel, end bay（Or stretch into a main span part）Beam body be beams of concrete.Mixing girder stayed-cable bridge uses steel due to its main span
Girder construction, span ability bigger；End bay uses beams of concrete to play good anchorage effect, and reducings the construction costs.
But bridge weight is also increased therewith, increase difficulty of construction.
The construction of bridge rotating method is widely used in the bridge constructions such as crossing highway, railway, rivers navigation channel, both ensures work of constructing
Phase does not interfere with normal pass again, its big advantage also causes erection by swing construction increasingly to popularize.Currently, as hybrid beam is oblique
Draw bridge tonnage, span increasing, the also higher of the requirement to Horizontal Swing Construction security and economy.Super-tonnage, span
Existing bridge rotating method is caused can not to meet construction requirement.
The content of the invention
Present invention aims at providing super-tonnage asymmetric mixing girder stayed-cable bridge horizontal swing structure and its construction method,
Offer standard foundation is put into practice for similar engineering.And solve current large-tonnage, asymmetric mixing girder stayed-cable bridge Horizontal Swing Construction stream
The problem of journey is complicated, construction cost is high.The present invention is with operational procedure is simple, speed of application is fast, safe and reliable, low engineering cost
Many advantages, such as.
The technical solution adopted by the present invention to solve the technical problems is：
The asymmetric mixing girder stayed-cable bridge horizontal swing structure of super-tonnage, including concrete pile, cushion cap, turntable and swivel are slided
Rail, the cushion cap are divided into cushion cap and lower cushion cap, and swivel slide is divided into spike and slideway, and upper cushion cap is equipped with top rotary table and support
Foot, lower cushion cap are equipped with lower rotary table, alignment pin and slideway, and top rotary table is connected with lower rotary table by alignment pin, top rotary table with
Lower rotary table is bonded, spike and slideway fitting.
Supporting sandbox is further included, supporting sandbox is located at spike both sides, and supporting sandbox is supported between cushion cap and lower cushion cap.
The top rotary table and lower rotary table are bonded for sphere-contact.
The supporting sandbox and spike be equipped with it is multigroup, supporting sandbox and spike are along the circumferential direction equidistantly laid.
The slideway is tetrafluoro slide plate, and quartz sand is filled in supporting sandbox.
The asymmetric mixing girder stayed-cable bridge horizontal swing construction method of super-tonnage, comprises the following steps：
The infrastructure such as S1, smooth location, construction pontic foundation pit, fender pile and pier stake；
S2, lower cushion cap, tumbler and upper bearing platform construction simultaneously connect；
S3, the beams of concrete for king-tower of constructing and installation steel box-girder；
The swivel section drag-line of S4, installation and tensioning king-tower；
S5, king-tower swivel adjust angle and fixation；
Section concrete beam and rear weldering section girder steel are poured after S6, construction, remaining drag-line is installed；
S7, adjustment full-bridge Suo Li, complete main bridge construction.
The asymmetric mixing girder stayed-cable bridge horizontal swing construction method of super-tonnage, comprises the following steps：
S1, cushion cap foundation pit construction
Place cleaning debris ground grading first, excavates cushion cap foundation pit；
S2, lower cushion cap, tumbler and upper bearing platform construction simultaneously connect
S201, lower cushion cap construction
The skeleton of lower cushion cap 3, lower rotary table 5 and slideway 8 is built in cushion cap foundation pit, lower cushion cap part concrete is poured, treats concrete
The fixation of the preliminary skeleton for completing lower rotary table 5 and slideway 8 of solidification；
S202, the installation of lower cushion cap accessory
Lower rotary table 5 is installed on the skeleton of lower rotary table 5 and slideway 8 and slideway 8,8 vertical error of slideway are not more than 0.5mm, flatness
No more than 1mm/m；
The concreting again of S203, lower cushion cap
By center around, the reserved exhausting-gas hole that pours ensures that concreting is closely knit to concrete；
S204, tumbler construction
Coating butter tetrafluoro powder in alignment pin 6, lifts and installs top rotary table 4, and top rotary table 4 passes through alignment pin 6 with lower rotary table 5
The concentricity of connection, top rotary table 4 and lower rotary table 5 is not more than 1mm, and top rotary table 4 and the levelness of lower rotary table 5 are not more than 0.5mm；
S205, top rotary table construction
Positive and negative three circle rotates top rotary table, and butter tetrafluoro powder is evenly distributed in alignment pin 6,6 seam crossing adhesive tape of alignment pin
Parcel；
S206, spike, sandbox construction
Support pad 30mm steel plates in 7 installation site of spike of lower rotary table 5, and the filling quartz sand compacting in supporting sandbox 9；
S207, the seat construction of traction counter-force
Traction counter-force seat 10 is set on the outside of lower cushion cap, pours counter-force seat concrete；
S208, upper bearing platform construction
Cushion cap, top rotary table and spike skeleton are built, then the steel strand wires for drawing counter-force seat are connected on top rotary table skeleton, are poured
Reserved mud jacking hole, pours cushion cap, top rotary table and spike concrete before building；Spike pouring concrete within steel pipe；
The beams of concrete and steel box-girder of S3, king-tower of constructing
The beams of concrete and installation steel box-girder of king-tower, swivel section concrete, toughened internal stress, girder steel are set up on S301, upper cushion cap
When strengthening segment concrete strength reaches design strength, elasticity modulus, tensioning girder steel beam and king-tower rod iron；
S302, constructed residual swivel section concrete and steel box-girder.Tensioning master when concrete strength reaches design strength and plays mould
Beam residue section steel beam；
The swivel section drag-line of S4, installation and tensioning king-tower
S5, king-tower swivel adjust angle and fixation
S501, debugging trailer system, pading plate under the interim sandbox of lower rotary table, spike bottom plate, is installed between spike and slideway in dismounting
Tetrafluoro slide plate；
S502, weigh king-tower swivel, counterweight, pulls hauling rope to drive support platform and king-tower to turn by drawing counter-force seat
Flat turn；
S503, flat turn design place in place set spacing block 11, and limiting card block resistance is stopped spike and is rotated further afterwards in place；
S504, swivel to flat turn, which design, slows down rotating speed when place is 2 ° remaining in place, swivel angular speed is not more than 0.02rad/min, away from
When flat turn design place in place differs 1 °, stop traction and rotate, it is in place by inertia；
S505：After turning in place, upper and lower turntable welds together, assembling reinforcement, pours the concrete support between upper and lower turntable
Seat 12；
Section concrete beam and rear weldering section girder steel are poured after S6, construction, remaining drag-line is installed
S7, adjustment full-bridge Suo Li, complete main bridge construction.
Concrete marked as C50 in the step S208.
The invention has the advantages that：
1st, the asymmetric mixing girder stayed-cable bridge horizontal swing structure of super-tonnage of the invention, has work progress safety, and applies
The work cycle is short, and existing line is disturbed less, takes into account good economy and security.
2nd, the asymmetric mixing girder stayed-cable bridge horizontal swing structure of super-tonnage of the invention, without special special equipment, behaviour
Make simply, stress is clear and definite.
3rd, compared with other methods, this method construction process is clear, and work progress accurately can be controlled.Swivel system
System simple structure, easy for installation, swivel process very can be carried out smoothly.Although limiting device therein is set simply,
It is positive effect, can effectively prevents from rotating excessive.
4th, can construct king-tower, compared with conventional construction method, contracting at the same time when constructing beams of concrete and installation steel box-girder
The short construction period, and construction machinery and manpower are saved, so as to save construction cost.
5th, belong to advanced construction method in large-tonnage, asymmetric hybrid beam CONSTRUCTION OF CABLE-STAYED BRIDGE, fill up large-tonnage, non-
The blank of symmetrical mixing girder stayed-cable bridge Horizontal Swing Construction, has the characteristics that domestically leading, international advanced.
The construction of bridge rotating method is widely used in the bridge constructions such as crossing highway, railway, rivers navigation channel, both ensures work of constructing
Phase does not interfere with normal pass again, its big advantage also causes erection by swing construction increasingly to popularize.Currently, as hybrid beam is oblique
Draw bridge tonnage, span increasing, the also higher of the requirement to Horizontal Swing Construction security and economy.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the top view of the present invention；
Fig. 3 is the use state diagram of the present invention.
Embodiment
Super-tonnage it is asymmetric mixing girder stayed-cable bridge horizontal swing structure, including concrete pile 1, cushion cap, turntable and turn
Body slide, the cushion cap are divided into cushion cap 2 and lower cushion cap 3, and swivel slide is divided into spike 7 and slideway 8, and upper cushion cap 2 is equipped with upper
Turntable 4 and spike 7, lower cushion cap 3 are equipped with lower rotary table 5, alignment pin 6 and slideway 8, and top rotary table 4 passes through positioning pin with lower rotary table 5
Axis 6 connects, and top rotary table 4 is bonded with lower rotary table 5, and spike 7 and slideway 8 are bonded.
Supporting sandbox 9 is further included, supporting sandbox 9 is located at 7 both sides of spike, and supporting sandbox 9 is supported on cushion cap 2 and lower cushion cap
Between 3.The top rotary table 4 and lower rotary table 5 are bonded for sphere-contact.The supporting sandbox 9 and spike 7 are equipped with multigroup, supporting sand
Case 9 and spike 7 are along the circumferential direction equidistantly laid.The slideway 8 is tetrafluoro slide plate, and quartz sand is filled in supporting sandbox 9.
The asymmetric mixing girder stayed-cable bridge horizontal swing construction method of super-tonnage, comprises the following steps：
The infrastructure such as S1, smooth location, construction pontic foundation pit, fender pile and pier stake；
S2, lower cushion cap, tumbler and upper bearing platform construction simultaneously connect；
S3, the beams of concrete for king-tower of constructing and installation steel box-girder；
The swivel section drag-line of S4, installation and tensioning king-tower；
S5, king-tower swivel adjust angle and fixation；
Section concrete beam and rear weldering section girder steel are poured after S6, construction, remaining drag-line is installed；
S7, adjustment full-bridge Suo Li, complete main bridge construction.
The asymmetric mixing girder stayed-cable bridge horizontal swing construction method of super-tonnage, comprises the following steps：
S1, cushion cap foundation pit construction
Place cleaning debris ground grading first, excavates cushion cap foundation pit；
S2, lower cushion cap, tumbler and upper bearing platform construction simultaneously connect
S201, lower cushion cap construction
The skeleton of lower cushion cap 3, lower rotary table 5 and slideway 8 is built in cushion cap foundation pit, lower cushion cap part concrete is poured, treats concrete
The fixation of the preliminary skeleton for completing lower rotary table 5 and slideway 8 of solidification；
S202, the installation of lower cushion cap accessory
Lower rotary table 5 is installed on the skeleton of lower rotary table 5 and slideway 8 and slideway 8,8 vertical error of slideway are not more than 0.5mm, flatness
No more than 1mm/m；
The concreting again of S203, lower cushion cap
By center around, the reserved exhausting-gas hole that pours ensures that concreting is closely knit to concrete；
S204, tumbler construction
Coating butter tetrafluoro powder in alignment pin 6, lifts and installs top rotary table 4, and top rotary table 4 passes through alignment pin 6 with lower rotary table 5
The concentricity of connection, top rotary table 4 and lower rotary table 5 is not more than 1mm, and top rotary table 4 and the levelness of lower rotary table 5 are not more than 0.5mm；
S205, top rotary table construction
Positive and negative three circle rotates top rotary table, and butter tetrafluoro powder is evenly distributed in alignment pin 6,6 seam crossing adhesive tape of alignment pin
Parcel；
S206, spike, sandbox construction
Support pad 30mm steel plates in 7 installation site of spike of lower rotary table 5, and the filling quartz sand compacting in supporting sandbox 9；
S207, the seat construction of traction counter-force
Traction counter-force seat 10 is set on the outside of lower cushion cap, pours counter-force seat concrete；
S208, upper bearing platform construction
Cushion cap, top rotary table and spike skeleton are built, then the steel strand wires for drawing counter-force seat are connected on top rotary table skeleton, are poured
Reserved mud jacking hole, pours cushion cap, top rotary table and spike concrete before building；Spike pouring concrete within steel pipe；
The beams of concrete and steel box-girder of S3, king-tower of constructing
The beams of concrete and installation steel box-girder of king-tower, swivel section concrete, toughened internal stress, girder steel are set up on S301, upper cushion cap
When strengthening segment concrete strength reaches design strength, elasticity modulus, tensioning girder steel beam and king-tower rod iron；
S302, constructed residual swivel section concrete and steel box-girder.Tensioning master when concrete strength reaches design strength and plays mould
Beam residue section steel beam；
The swivel section drag-line of S4, installation and tensioning king-tower
S5, king-tower swivel adjust angle and fixation
S501, debugging trailer system, pading plate under the interim sandbox of lower rotary table, spike bottom plate, is installed between spike and slideway in dismounting
Tetrafluoro slide plate；
S502, weigh king-tower swivel, counterweight, pulls hauling rope to drive support platform and king-tower to turn by drawing counter-force seat
Flat turn；
S503, flat turn design place in place set spacing block 11, and limiting card block resistance is stopped spike and is rotated further afterwards in place；
S504, swivel to flat turn, which design, slows down rotating speed when place is 2 ° remaining in place, swivel angular speed is not more than 0.02rad/min, away from
When flat turn design place in place differs 1 °, stop traction and rotate, it is in place by inertia；
S505：After turning in place, upper and lower turntable welds together, assembling reinforcement, pours the concrete support between upper and lower turntable
Seat 12；
Section concrete beam and rear weldering section girder steel are poured after S6, construction, remaining drag-line is installed
S7, adjustment full-bridge Suo Li, complete main bridge construction.
Concrete marked as C50 in the step S208.
As shown in figure 3, the main bridge of the cable-stayed bridge of the embodiment of the present invention is only tower single plane cable stayed bridge, total length 259m, using turning
Body construction.Concrete cantilever end 78m, steel box girder cantilever end 145m.Structure consolidates system, bridge tower overall height entirely using tower-beam-pier
75m, king-tower use steel-concrete structure.
As illustrated in fig. 1 and 2, the asymmetric mixing girder stayed-cable bridge horizontal swing structure of super-tonnage, including concrete pile 1,
Cushion cap, turntable and swivel slide, the cushion cap are divided into cushion cap 2 and lower cushion cap 3, and swivel slide is divided into spike 7 and slideway 8, on
Cushion cap 2 is equipped with top rotary table 4 and spike 7, and lower cushion cap 3 is equipped with lower rotary table 5, alignment pin 6 and slideway 8, top rotary table 4 with lower turn
Disk 5 is connected by alignment pin 6, and top rotary table 4 is bonded with lower rotary table 5, and spike 7 and slideway 8 are bonded.Held by upper cushion cap 2 with
3 split mode of platform reduces processing and pours difficulty, and top rotary table 4 is bonded with lower rotary table 5 is easy to rotator construction.Supporting sandbox 9 is further included,
Supporting sandbox 9 is located at 7 both sides of spike, and supporting sandbox 9 is supported between cushion cap 2 and lower cushion cap 3.Formed by supporting sandbox 9
Temporary support, ensures that overall pontic is stablized.The top rotary table 4 and lower rotary table 5 are bonded for sphere-contact.It is effective easy to sphere-contact
Ensure that support is stablized in top rotary table 4 and the fitting of lower rotary table 5.Swivel after-pouring concrete support is supported by supporting sandbox 9 before swivel
Seat 12, ensures overall pontic construction safety.
It these are only the preferred embodiment of the present invention, be not intended to limit the invention, for those skilled in the art
For member, the invention may be variously modified and varied.Any modification within the spirit and principles of the invention, being made,
Equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. the asymmetric mixing girder stayed-cable bridge horizontal swing structure of super-tonnage, it is characterised in that including concrete pile（1）, hold
Platform, turntable and swivel slide, the cushion cap are divided into cushion cap（2）And lower cushion cap（3）, turn slide and be divided into spike（7）And slideway
（8）, upper cushion cap（2）It is equipped with top rotary table（4）And spike（7）, lower cushion cap（3）It is equipped with lower rotary table（5）, alignment pin（6）With
Slideway（8）, top rotary table（4）With lower rotary table（5）Pass through alignment pin（6）Connection, top rotary table（4）With lower rotary table（5）Fitting, spike
（7）And slideway（8）Fitting.
2. the asymmetric mixing girder stayed-cable bridge horizontal swing structure of super-tonnage according to claim 1, it is characterised in that also wrap
Include supporting sandbox（9）, supporting sandbox（9）It is located at spike（7）Both sides, supporting sandbox（9）It is supported on cushion cap（2）And lower cushion cap
（3）Between.
3. the asymmetric mixing girder stayed-cable bridge horizontal swing structure of super-tonnage according to claim 1, it is characterised in that described
Top rotary table（4）And lower rotary table（5）It is bonded for sphere-contact.
4. the asymmetric mixing girder stayed-cable bridge horizontal swing structure of super-tonnage according to claim 2, it is characterised in that described
Supporting sandbox（9）And spike（7）Equipped with multigroup, supporting sandbox（9）And spike（7）Along the circumferential direction equidistantly lay.
5. the asymmetric mixing girder stayed-cable bridge horizontal swing structure of super-tonnage described in claim 2, it is characterised in that the slideway
（8）For tetrafluoro slide plate, supporting sandbox（9）Interior filling quartz sand.
6. the asymmetric mixing girder stayed-cable bridge horizontal swing structure construction of super-tonnage according to any one of claims 1 to 5
Method, it is characterised in that comprise the following steps：
The infrastructure such as S1, smooth location, construction pontic foundation pit, fender pile and pier stake；
S2, lower cushion cap, tumbler and upper bearing platform construction simultaneously connect；
S3, the beams of concrete for king-tower of constructing and installation steel box-girder；
The swivel section drag-line of S4, installation and tensioning king-tower；
S5, king-tower swivel adjust angle and fixation；
Section concrete beam and rear weldering section girder steel are poured after S6, construction, remaining drag-line is installed；
S7, adjustment full-bridge Suo Li, complete main bridge construction.
7. the asymmetric mixing girder stayed-cable bridge horizontal swing structure construction of super-tonnage according to any one of claims 1 to 5
Method, it is characterised in that comprise the following steps：
S1, cushion cap foundation pit construction
Place cleaning debris ground grading first, excavates cushion cap foundation pit；
S2, lower cushion cap, tumbler and upper bearing platform construction simultaneously connect
S201, lower cushion cap construction
Lower cushion cap is built in cushion cap foundation pit（3）, lower rotary table（5）And slideway（8）Skeleton, pour lower cushion cap part concrete, treat
Lower rotary table is tentatively completed in concrete setting（5）And slideway（8）Skeleton fixation；
S202, the installation of lower cushion cap accessory
Lower rotary table（5）And slideway（8）Skeleton on lower rotary table is installed（5）And slideway（8）, slideway（8）Vertical error is not more than
0.5mm, flatness are not more than 1mm/m；
The concreting again of S203, lower cushion cap
By center around, the reserved exhausting-gas hole that pours ensures that concreting is closely knit to concrete；
S204, tumbler construction
Alignment pin（6）Interior coating butter tetrafluoro powder, lifts and installs top rotary table（4）, top rotary table（4）With lower rotary table（5）Pass through
Alignment pin（6）Connection, top rotary table（4）With lower rotary table（5）Concentricity be not more than 1mm, top rotary table（4）With lower rotary table（5）'s
Levelness is not more than 0.5mm；
S205, top rotary table construction
Positive and negative three circle rotates top rotary table, and butter tetrafluoro powder is evenly distributed on alignment pin（6）It is interior, alignment pin（6）Seam crossing is used
Adhesive tape wraps up；
S206, spike, sandbox construction
Lower rotary table（5）Spike（7）Support pad 30mm steel plates in installation site, and in supporting sandbox（9）Interior filling quartz sand pressure
It is real；
S207, the seat construction of traction counter-force
Traction counter-force seat is set on the outside of lower cushion cap（10）, pour counter-force seat concrete；
S208, upper bearing platform construction
Cushion cap, top rotary table and spike skeleton are built, then the steel strand wires for drawing counter-force seat are connected on top rotary table skeleton, are poured
Reserved mud jacking hole, pours cushion cap, top rotary table and spike concrete before building；Spike pouring concrete within steel pipe；
The beams of concrete and steel box-girder of S3, king-tower of constructing
The beams of concrete and installation steel box-girder of king-tower, swivel section concrete, toughened internal stress, girder steel are set up on S301, upper cushion cap
When strengthening segment concrete strength reaches design strength, elasticity modulus, tensioning girder steel beam and king-tower rod iron；
S302, constructed residual swivel section concrete and steel box-girder；Tensioning master when concrete strength reaches design strength and plays mould
Beam residue section steel beam；
The swivel section drag-line of S4, installation and tensioning king-tower
S5, king-tower swivel adjust angle and fixation
S501, debugging trailer system, pading plate under the interim sandbox of lower rotary table, spike bottom plate, is installed between spike and slideway in dismounting
Tetrafluoro slide plate；
S502, weigh king-tower swivel, counterweight, pulls hauling rope to drive support platform and king-tower to turn by drawing counter-force seat
Flat turn；
S503, flat turn design place in place set spacing block（11）, limiting card block resistance stops spike and is rotated further afterwards in place；
S504, swivel to flat turn, which design, slows down rotating speed when place is 2 ° remaining in place, swivel angular speed is not more than 0.02rad/min, away from
When flat turn design place in place differs 1 °, stop traction and rotate, it is in place by inertia；
S505：After turning in place, upper and lower turntable welds together, assembling reinforcement, pours the concrete support between upper and lower turntable
Seat（12）；
Section concrete beam and rear weldering section girder steel are poured after S6, construction, remaining drag-line is installed
S7, adjustment full-bridge Suo Li, complete main bridge construction.
8. the asymmetric mixing girder stayed-cable bridge horizontal swing construction method of super-tonnage according to claim 7, it is special
Levy in the step S208 concrete marked as C50.
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| CN111778875A (en) * | 2020-07-27 | 2020-10-16 | 山东交通学院 | Roller type supporting leg, bridge turning system and construction method |
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