CN106087771B - Large span bias Recumbent steel box tied arch bridge Buoys arrangement construction technology - Google Patents
Large span bias Recumbent steel box tied arch bridge Buoys arrangement construction technology Download PDFInfo
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- CN106087771B CN106087771B CN201610681068.XA CN201610681068A CN106087771B CN 106087771 B CN106087771 B CN 106087771B CN 201610681068 A CN201610681068 A CN 201610681068A CN 106087771 B CN106087771 B CN 106087771B
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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
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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
- E01D4/00—Arch-type bridges
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- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of large span bias Recumbent steel box tied arch bridge Buoys arrangement construction technology, institute's construction arch bridge is the bowstring arch bridge that is erected on river course and its bridge superstructure includes the two arch bridge superstructures symmetrically laid in left and right；When carrying out Buoys arrangement construction to constructed arch bridge, including step：First, preliminary preparation：Sliding system is constructed, and moving supporting device is processed；2nd, bridge superstructure land is assembled：Assembly is carried out respectively to two arch bridge superstructures using sliding system；3rd, bridge superstructure floating and hauling construction, process are as follows：Trailer system is constructed and arch bridge superstructure floating and hauling construction；4th, portion connecting structure is constructed under arch rib；5th, floorings are mated formation.Present invention process step is simple, reasonable in design and easy construction, construction effect are good, can it is easy, be rapidly completed large span bias Recumbent steel box tied arch bridge Buoys arrangement work progress, and construction quality is easy to ensure.
Description
Technical field
The invention belongs to technical field of bridge construction, more particularly, to a kind of large span bias Recumbent steel box tied arch bridge
Buoys arrangement construction technology.
Background technology
Sunan Canal is one of national water transport main thoroughfare, is the chief component of Beijing-Hangzhou Grand Canal, is the Changjiang river triangle
The important leg of " one is vertical " in continent area " two vertical six is horizontal " high-grade waterway net, and the main axle of Jiangsu Province's trunk waterway network
Line.The section three-level waterway regulation works navigational clearance requirement of Sunan Canal Wujiang is 80 × 7m.Sunan Canal Wujiang section three-level navigation channel
The newly-built cloud pears bridge location of training works is east-west, overall length of bridge in across the Jinghang Canal place in Wujiang area of Suzhou City Yun Li roads
548.08m, superstructure across footpath are 2 × (4 × 26)+100+3 × (3 × 26) m, wherein main bridge is Leaning-type Tied Arch Bridge, are drawn
Bridge is prestressed concrete continuous box girder.The newly-built main bridge of cloud pears bridge is full steel structure Recumbent steel case tied arch, is a kind of structure
The combined system arch bridge of novel form, distinct characteristics.For the bridge across Beijing-Hangzhou Grand Canal, the shipping of bridge construction region is busier,
The distinguishing feature of inland waterway engineering is that do not possess the big weight steel structure bridge of large scale equipment hoisting and hanging, does not also allow to set up water
Middle falsework takes influence to channel operation for a long time, and the necessary iceound time is of short duration during construction, it is necessary to is influenceed using on navigation
Less arrangement and method for construction.
Selected by the ratio of prudent safety, technical elements, the main bridge of cloud pears bridge is made using assembly on the support of land using barge
For Waterborne movable front fulcrum, the dilatory construction technology to cross the river of framing, i.e. floating and hauling construction technique.The main bridges of Yun Liqiao are that single hole across footpath is
100m, left and right width main arch rib both sides respectively arrange it is a piece of it is intilted lean to arch, main askew arch circle is in 19 ° of vertical plane within angle, entirely
Bridge steel construction gross weight about 2700t, how with the integrated biological pond system formulated reliably and securely to complete such large span, big
The land assembled and Buoys arrangement of weight bias Leaning-type arch bridges, complex process, difficulty are big, security risk is high, and maximum cantilever
Up to 23.2m, to side base plinth and the support requirement height of bordering on the river, while Jinghang Canal dealing ship is frequent, it is allowed to which the iceound time is of short duration,
Ask completed within the iceound time it is floating drag work, task weight, there is no successful experience to use for reference at present, be available for the technical data used for reference compared with
It is few.
The content of the invention
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that it is inclined to provide a kind of large span
Heart Recumbent steel box tied arch bridge Buoys arrangement construction technology, its processing step is simple, reasonable in design and easy construction, construction effect
Fruit is good, and energy is easy, is rapidly completed large span bias Recumbent steel box tied arch bridge Buoys arrangement work progress, and construction quality
It is easy to ensure.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of large span bias Recumbent steel case system
Bar arch bridge float-dragging erection construction technique, it is characterised in that：Institute's construction arch bridge is the bowstring arch bridge being erected on river course, the tie-rod
Arch bridge be large span bias Recumbent steel box tied arch bridge and it include bridge substructure and being supported in the bridge lower junction
Bridge superstructure on structure, the bridge superstructure include the two arch bridge superstructures symmetrically laid in left and right, the arch
Bridge superstructure is included in the main arch rib to laying, the askew arch rib on the outside of main arch rib vertically and positioned at main arch rib and askew arch rib
The arch rib bottom bracing structure of lower section, the askew arch rib are gradually outward-dipping from top to bottom；In two arch bridge superstructures
The arch rib bottom bracing structure be fastenedly connected and be integrated by portion connecting structure under arch rib, two arch rib lower support
Structure forms bridge floor supporting construction with portion connecting structure under the arch rib, and being tiled in the bridge floor supporting construction has floorings；Institute
Stating bridge substructure includes two bridge bottom bracing structures being supported respectively to the both ends of the bridge superstructure,
Two bridge bottom bracing structures are located at the both sides in the river course respectively；
The arch rib bottom bracing structure includes being connected to principal series beam between two arch springings of main arch rib, is connected to askew arch
Oblique binder between two arch springings of rib, the side longeron between principal series beam and oblique binder and outer vertical on the outside of oblique binder
Beam, the principal series beam are located at the underface of main arch rib, main arch rib and the askew arch rib along vertical bridge to laying, the principal series beam,
Oblique binder, side longeron and jack stringer are along vertical bridge to laying and it is laid in same level；The principal series beam, tiltedly system
Beam, it is fastenedly connected and is integrated in the while crossbeam of parallel laying by multiple tracks between longeron and jack stringer, side crossbeam described in multiple tracks
Laid along direction across bridge and it is laid in same level；Pass through more vertical suspension rods between main arch rib and the principal series beam
It is attached, the more vertical suspension rods are along vertical bridges to being laid from front to back and it is laid on same vertical plane；Institute
State and be attached between askew arch rib and jack stringer by more oblique suspension rods, the more oblique suspension rods are along vertical bridge to from front to back
Laid, the oblique suspension rod is gradually outward-dipping from top to bottom；
When carrying out Buoys arrangement construction to constructed arch bridge, comprise the following steps：
Step 1: preliminary preparation：Buoys arrangement construction is applied with sliding system on river course side bank
Work, and Buoys arrangement construction is processed with moving supporting device；
Temporary support structure that the sliding system includes being supported the bridge superstructure, it is laid in described face
When supporting construction on glide path and the upper slide device above the glide path, the temporary support structure and it is described under
Slideway is along vertical bridge to laying；
Bridge bottom bracing structure in two bridge bottom bracing structures positioned at the sliding system side is spelling
Lateral support structure is filled, another described bridge bottom bracing structure is opposite bank supporting construction；The temporary support structure and two
The bridge bottom bracing structure is laid on same vertical plane, and the assembled lateral support structure is located at the temporary support structure
In；
The moving supporting device is can carry out on the river course and on the river course front and rear support meanss；
The moving supporting device includes barge and the temporary support being supported to the bridge superstructure, the interim branch
Support is supported in the front side bottom of the bridge superstructure；During the temporary support is fixedly mounted on the inside of the cabin of barge
Portion, the temporary support include the supporting frame by more straight rod member welding fabrications；Front and rear the two of the temporary support
Side lower part is provided with the direction across bridge distribution beam reinforced to barge, and the direction across bridge distribution beam is laid along direction across bridge and its position
In in the cabin of barge, the left and right ends of the direction across bridge distribution beam are separately fixed on the madial wall of the cabin, the horizontal stroke
Bridge is fixed on the inside bottom of the cabin to distribution beam bottom；
Step 2: bridge superstructure land is assembled：Using sliding system described in step 1, the bridge top is tied
Two arch bridge superstructures of structure carry out assembly respectively, obtain assembled shaping and are supported on the temporary support structure
Two arch bridge superstructures, and two arch bridge superstructures is mounted on the upper slide device；
Step 3: bridge superstructure floating and hauling construction, process are as follows：
Step 301, trailer system construction：Buoys arrangement construction is constructed with trailer system；
The trailer system includes being fixed on traction anchor structure on front side of the bridge superstructure, on the bridge
Portion's structure carries out haulage gear dilatory forward and the traction counter-force seat for haulage gear installation, the traction counter-force seat
In the front of the bridge superstructure；The traction counter-force seat and the sliding system are located at the two of the river course respectively
Side；The haulage gear is the jack along vertical bridge to laying；The jack is centre-hole jack and itself and the traction
It is attached between anchor structure by steel strand wires；The traction counter-force seat is located at the front side of the opposite bank supporting construction；
Step 302, arch bridge superstructure floating and hauling construction：Using trailer system described in step 301, institute in step 1 is utilized
Sliding system and the moving supporting device are stated, two in the step 2 arch bridge superstructures are respectively forwardly drawn, directly
Drawn in place to by two arch bridge superstructures, and the rear and front end of the arch bridge superstructure is respectively supported at two
On the individual bridge bottom bracing structure；
Step 4: portion connecting structure is constructed under arch rib：Portion connecting structure under the arch rib is constructed, and by described
The arch rib bottom bracing structure in two arch bridge superstructures is fastenedly connected and is integrated by portion connecting structure under arch rib,
Obtain the bridge floor supporting construction of construction molding；
Step 5: floorings are mated formation：The construction tiling floorings in bridge floor supporting construction described in step 4.
Above-mentioned large span bias Recumbent steel box tied arch bridge Buoys arrangement construction technology, it is characterized in that：Institute in step 5
State floorings to be spliced by polylith bridge floor prefabricated board, the bridge floor prefabricated board is reinforced concrete prefabricated board, adjacent two pieces of institutes
State and be attached by the wet seam of concrete between bridge floor prefabricated board；
When progress floorings are mated formation in step 5, the bridge floor described in polylith that first tiled in the bridge floor supporting construction is prefabricated
Plate, then to being constructed respectively by the wet seam of concrete between the adjacent two pieces bridge floor prefabricated boards.
Above-mentioned large span bias Recumbent steel box tied arch bridge Buoys arrangement construction technology, it is characterized in that：Institute in step 1
The quantity for stating slide device is two, and two upper slide devices are separately mounted to two arch bridge superstructure bottoms
Portion；
The quantity of trailer system described in step 301 is two, and two trailer systems are located at two arches respectively
The front of bridge superstructure；The traction anchor structure in each trailer system is each attached to the arch drawn
The lower front of bridge superstructure, the traction counter-force seat in each trailer system are respectively positioned on the arch bridge top drawn
The front of structure；
When arch bridge superstructure floating and hauling construction is carried out in step 302, using two trailer systems in step 2 two
The individual arch bridge superstructure is drawn forward respectively.
Above-mentioned large span bias Recumbent steel box tied arch bridge Buoys arrangement construction technology, it is characterized in that：Enter in step 302
During row arch bridge superstructure floating and hauling construction, first an arch bridge superstructure is drawn forward；Treat that the arch bridge top is tied
After structure is drawn in place, then arch bridge superstructure another described is drawn forward.
Above-mentioned large span bias Recumbent steel box tied arch bridge Buoys arrangement construction technology, it is characterized in that：Institute in step 1
State temporary support structure include it is multiple along vertical bridge to the falsework laid from front to back；The glide path and two bridges
Bottom bracing structure is laid on same vertical plane, and the bridge superstructure is located at the surface of the glide path；Under described
Slideway is laid in the cunning described in four directly over slideway longeron including the vertical bridge in four edges respectively to the slideway longeron of laying and four
Move track, the principal series beam be provided with immediately below oblique binder together with the sliding rail；Slideway longeron described in four
Structure all same and its be laid in same level, the structure all same of sliding rail described in four and its be laid in together
On one horizontal plane；The upper slide device includes multiple straight skidding cars that straight skidding is carried out along sliding rail described in four,
Multiple straight skidding cars are along vertical bridges to being laid from front to back and it is respectively positioned on described in four on sliding rail；Multiple institutes
State straight skidding car and be mounted on the bridge superstructure bottom, the structure all same of multiple straight skidding cars and its is equal
Positioned at the surface of the glide path.
Above-mentioned large span bias Recumbent steel box tied arch bridge Buoys arrangement construction technology, it is characterized in that：Enter in step 2
During the land assembly of row bridge superstructure, also temporary supporting system need to be set up in each arch bridge superstructure, it is described
Temporary supporting system includes multiple interim vertical supporting framves being supported from front to back to main arch rib and askew arch rib, multiple described
Interim vertical supporting frame is erected on the arch rib bottom bracing structure, and main arch rib and the askew arch rib is supported in multiple institutes
State on interim vertical supporting frame；
The quantity of straight skidding car described in the upper slide device and interim vertical supporting in the temporary supporting system
The quantity of frame is identical, and a straight skidding car is provided with immediately below each interim vertical supporting frame.
Above-mentioned large span bias Recumbent steel box tied arch bridge Buoys arrangement construction technology, it is characterized in that：Face described in multiple
When vertical supporting frame in positioned at most front side interim vertical supporting frame be front side vertical supporting frame；
The temporary support is located at below the front side vertical supporting frame, and the temporary support and the front side are vertical
Support frame, which is fastenedly connected, to be integrated.
Above-mentioned large span bias Recumbent steel box tied arch bridge Buoys arrangement construction technology, it is characterized in that：Institute in step 1
Stating supporting frame includes four support posts, and four support posts are laid on four summits of a rectangle respectively, phase
It is fastenedly connected between adjacent two support posts by bridging and twice horizontal brace rod, horizontal connection described in twice
Bar is located at the both sides up and down of bridging respectively；
Each support post the week side of boss is provided with column ruggedized construction, and the column ruggedized construction includes four vertically
Strengthening steel slab, four vertical strengthening steel slabs are respectively that the front side for being laid in support post front side, rear side, left side and right side adds
Gu steel plate, backside reinforcement steel plate, left side strengthening steel slab and right side strengthening steel slab, the front side strengthening steel slab and the backside reinforcement
Steel plate is laid in vertical bridge to laying, the left side strengthening steel slab and the right side strengthening steel slab in direction across bridge；It is each described
A cross ribbed stiffener is provided with vertical strengthening steel slab；
The region that support post is fixed on the cabin is column fixed area, is all provided with the outside of each column fixed area
It is equipped with vertically and horizontally ruggedized construction；The vertically and horizontally ruggedized construction include the transverse stiffener laid from front to back of multiple tracks and multiple tracks by
The longitudinal stiffener that left-to-right is laid, longitudinal stiffener described in transverse stiffener described in multiple tracks and multiple tracks are laid in same level
On face and it is weldingly fixed on the inside bottom of the cabin；Transverse stiffener described in multiple tracks described in multiple tracks by longitudinally putting more energy into
Rib, which is fastenedly connected, to be integrated.
Above-mentioned large span bias Recumbent steel box tied arch bridge Buoys arrangement construction technology, it is characterized in that：Institute in step 301
Stating traction counter-force seat includes bottom plate, the vertical supporting post that multiple tracks is fixed on bottom plate from left to right, is laid in described in multiple tracks vertically
Backing plate on front side of support column and two gussets for being separately fixed at top at left and right sides of bottom plate, the backing plate laid in direction across bridge and
It is in vertically to laying；The backing plate is fixed on bottom plate, is provided with described in per pass on rear side of vertical supporting post oblique together
Strut；The bottom plate be horizontal steel plate and its be fixedly secured to by multiple first crab-bolts on bottom bracing structure, the bottom plate
On be provided with it is multiple for the first crab-bolt installation mounting holes；Oblique strut described in multiple tracks in vertical bridge to laying, it is oblique described in per pass
The upper end of strut, which is propped up, to be peaked on backing plate, and oblique strut bottom is each attached on bottom plate described in per pass；
Two gussets in vertically to lay and the two respectively be located at jack the left and right sides, the jack and
Two gussets are respectively positioned on front side of backing plate along vertical bridge to laying, the jack and two gussets, the jack
It is supported on bottom plate, jack is installed between two gussets；The rear portion branch of the jack is withstood on backing plate；
The traction anchor structure includes being fixed on hinged seat on front side of the bridge superstructure, on front side of hinged seat
And the fixed seat fixed for steel strand wires rear ends and left and right two carry out spacing limit pull rods to fixed seat, the fixed seat is to cut with scissors
Mode is connect on hinged seat；Two limit pull rods are symmetrically laid in the left and right sides of fixed seat, each described spacing
The front end of pull bar is each attached on the lateral wall of fixed seat, and the rear end of each limit pull rod is each attached to the bridge top
In structure.
Above-mentioned large span bias Recumbent steel box tied arch bridge Buoys arrangement construction technology, it is characterized in that：Institute in step 301
State the guide holder that trailer system also includes being laid on the bottom bracing structure and being oriented to steel strand wires, the guide holder
On rear side of traction counter-force seat；
The guide holder includes bedplate, two locating parts being separately fixed at left and right sides of bedplate, is fixed on two
Vertical supporting plate and the horizontal shelf being supported on vertical supporting plate between the locating part, the vertical supporting plate bottom is consolidated
It is scheduled on bedplate；The bedplate is fixed on the bottom bracing structure by multiple second crab-bolts；The horizontal shelf
The guide groove being oriented to steel strand wires is formed between two locating parts.
The present invention has advantages below compared with prior art：
1st, construction method is simple, reasonable in design, easy construction and input cost are relatively low, and efficiency of construction is high, short construction period.
2nd, using the bridge superstructure support for institute's construction arch bridge with the sliding system of straight skidding, to bridge top knot
The moving supporting device and dragging bridge superstructure edge being supported on front side of structure indulge bridge to the trailer system phase translated forward
Coordinate and carry out floating and hauling construction, the moving supporting device is located at the positive front side of the sliding system, wherein sliding system and shifting
Dynamic formula support meanss composition is floating drag during, steady, secure support support system, while the branch are carried out to bridge superstructure
Support body system can be oriented to the floating Cheng Jinhang that is pulled through.
3rd, used sliding system is simple in construction, reasonable in design and processing and fabricating is easy, and input cost is relatively low, including right
Temporary support structure that bridge superstructure is supported, the glide path being laid on temporary support structure and on glide path
The upper slide device of side, temporary support structure and glide path are easy along vertical bridge to laying, practice of construction.During actual use, face
When supporting construction provide a stable, reliable platform with sliding for bridge superstructure is assembled, glide path, which is fixedly installed in, to be faced
When supporting construction on, upper slide device along glide path loaded on bridge superstructure and only steadily sliding.
4th, used upper slide device is simple in construction, reasonable in design and processing and fabricating and use are easy to operate, uses effect
Fruit is good, and upper slide device includes multiple straight skidding cars laid from front to back, and multiple straight skidding cars can not only drive bridge
Superstructure carries out easy, steady straight skidding, and can be bridge superstructure deduction gentle support in slipping, more
Individual straight skidding car forms the upper sliding passage of a stabilized structure.Also, the straight skidding car enters using roller bearing as sliding component
Row straight skidding, slipping is steady, durable in use.
5th, used sliding system is good using easy to operate, using effect and practical value is high, not only serves as bridge
Superstructure provides platform for lining, and energy is easy, quickly carries out straight skidding, use to the bridge superstructure of assembly shaping
Dependable performance, can bridge superstructure progress straight skidding that is easy, being quickly molded to assembly.
6th, used moving supporting device is simple in construction, reasonable in design and processing and fabricating is easy, and input cost is relatively low,
The temporary support being supported including barge and to the bridge superstructures of institute's construction bridges, temporary support are supported in bridge
The front side bottom of superstructure, and to ensure support reliably and in heave, cabin is firm, safety, in temporary support
Front and rear sides bottom be provided with the direction across bridge distribution beam reinforced to barge, floating load to be dragged to uniformly transfer to ship
Body is longitudinal and horizontal shifting board, ensures hull safety.
7th, temporary support is simple in construction used by moving supporting device, reasonable in design and processing and fabricating is easy, makes
It is good with effect, firm support can be carried out to bridge superstructure.
8th, barge Scheme of Strengthening is reasonable in design, on the basis of direction across bridge distribution beam, is all provided with each support post the week side of boss
Column ruggedized construction is equipped with, while fixes on cabin on the outside of the column fixed area of support post to be provided with and vertically and horizontally reinforces knot
Structure, it can effectively prevent that temporary support bears that buckling failure occurs during larger pulling force in heave.
9th, used moving supporting device using effect is good and practical value is high, can steadily be moved in river course
It is dynamic, and by being reinforced to barge and temporary support being set on barge, can be to bridge superstructure in heave
Front portion carries out firm support, using process safety, reliably.
10th, used trailer system is simple in construction, reasonable in design and processing and fabricating is easy, and input cost is relatively low, including
It is fixed on the traction anchor structure on front side of the bridge superstructure of institute's construction bridges, that draws forward is carried out to bridge superstructure
Haulage gear and the traction counter-force seat for haulage gear installation, pass through between haulage gear (i.e. jack) and traction anchor structure
Steel strand wires are attached, and actual installation is easy and simple to operate.Meanwhile in addition to it is laid on bottom bracing structure and steel is twisted
The guide holder that line is oriented to, traction effect can be effectively ensured.
11st, used traction counter-force holder structure is simple, reasonable in design and processing and fabricating is easy, and input cost is relatively low, whole
Body stabilized structure, the vertical supporting post being mainly fixed on from left to right on bottom plate including bottom plate, multiple tracks, it is laid in multiple tracks and vertically props up
Backing plate on front side of dagger and two are separately fixed at top at left and right sides of bottom plate and spacing gusset, globality are carried out to jack
Good, connection is reliable.During actual use, jack is installed on bottom plate, and is installed between two gussets, and jack can be carried out
It is effectively radially spacing, it is ensured that pull-offs direction is always consistent, while jack rear portion branch is withstood on backing plate, thus the traction is anti-
Power seat is good using easy to operate, using effect and practical value is high, meets jack counter-force seat use demand, and support consolidates, can
Lean on, and fixed easy, using process safety, reliable, the longitudinal pull demand of bridge superstructure can be met.
12nd, used traction anchor structure it is reasonable in design and using it is easy to operate, using effect is good, main to include fixing
Hinged seat on front side of bridge superstructure, the fixed seat on front side of hinged seat and for the fixation of steel strand wires rear end and left and right two
Spacing limit pull rod is carried out to fixed seat, energy is easy, is rapidly completed the anchor connection of steel strand wires and bridge superstructure, and
Connection is reliable, and fixed seat is arranged on bridge superstructure front portion in hinged way, steel strand wires rear end is lived within the specific limits
It is dynamic, meet the actual demand in heave, avoid leading because steel strand wires rear end uses to be rigidly connected with bridge superstructure front portion
The problems such as causing steel strand wires deformation, fracture.
13rd, used guide seat structure is simple, reasonable in design and use is easy to operate, using effect is good, including base
Plate, two locating parts being separately fixed at left and right sides of bedplate, the vertical supporting plate being fixed between two locating parts and branch
Support the guiding that formation is oriented to steel strand wires between the horizontal shelf on vertical supporting plate, horizontal shelf and two locating parts
Groove, during practice of construction, steel strand wires need to be only placed in guide groove, steel strand wires are oriented to by guide holder, can be met
Demand dilatory over long distances.
14th, used trailer system using effect is good and practical value is high, can bridge that is easy, being quickly molded to assembly
Superstructure carries out longitudinal pull, to accelerate bridge floating and hauling construction progress.
15th, easy construction and construction effect is good, sliding system, moving supporting device and trailer system coordinative role, energy
Floating and hauling construction process that is easy, being rapidly completed large span bias Recumbent steel box tied arch bridge, wherein large span refer to single hole across
Footpath >=100 meter.The overall structure stability control that high center of gravity and eccentric force bowstring arch bridge are efficiently solved using the present invention is asked
Topic, to the tie-rod arch structure unstability of itself, using following measures：Firstth, tie-rod is participated in by increasing temporary supporting system
Arch structure stress, the fulcrum force of sliding is also served as, improve the stability of structure itself；Secondth, barge fulcrum during dragging is floated
Stress gradually increases, and to avoid binder at barge fulcrum, arch rib stress deformation, barge is interim perpendicular positioned at first during dragging
To the underface of support frame, and increase ring is put more energy into binder in this place；Based on the upper sliding hired a car by reading a straight skidding car
Device, before floating drag, barge is jacked and released positioned at most between the straight skidding car of front side and arch bridge superstructure in place
Constraint, the water discharging number during floating drag is reduced, whole floating drag is substantially at the constant situation of theoretical stress, fundamentally subtract
The destabilizing factor during floating drag is lacked；It is floating drag during release pact between straight skidding car and arch bridge superstructure one by one
Beam, the stability during ensure that high center of gravity and eccentric force bowstring arch bridge are floating and dragging.In addition, efficiently solved using the present invention
Influence problem of the barge as Waterborne movable fulcrum to stability during floating drag.Barge is pulled through Waterborne movable branch in journey as floating
Point, its bearing capacity and stability are the main points of Construction control,
The present invention successfully solves the problems, such as the bearing capacity of barge and the aspect of stability two by being reinforced to barge.
Float during dragging, barge conduct front Waterborne movable fulcrum, fulcrum quantity is constantly reduced on the slideway of rear, whole tie-rod arch structure
Multiple system transform is undergone, a fulcrum is often reduced by rear, and the weight of barge carrying will increase a part, until last tied arch
Structure is only in the straight skidding car of barge and last most rear side as under the freely-supported operating mode of fulcrum.Meanwhile by temporary support,
And the intensity of temporary support can be effectively ensured, can be by load Transmit evenly to hull.On solving barge stability sex chromosome mosaicism,
Barge is divided into 10 cabins, by adjusting water in cabin, adjustment barge, water ballast, barge upper bracket three center of gravity with
Steel construction center of gravity is located in same vertical face, and the stability of barge is played a good role.In addition, in trailer system side
Method, according to the gravity plane position of arch bridge superstructure, two groups of tractive force are arranged symmetrically at center of gravity identical distance, led
Control opposite bank centre-hole jack to accomplish synchronous force during drawing, and then ensure that the floating stability dragged.Also, using continuous
The trailer system that feed-through hydraulic jack is formed with steel strand wires, makes tractive force more accurate, and then controls arch bridge superstructure
Off normal；Arch bridge superstructure is rectified a deviation in time by the size for adjusting two groups of jack tractive force, control axis off normal exists
Within ± 5cm, effect is preferable；Traction, it is floating drag during when feeding the roller bearing below sliding fulcrum, control roller bearing hangs down with glide path
Directly, lateral forces are reduced；Barge set four bank anchors can also be used for finely tune steel construction left-right deviation, and finally fall beam,
Stage in place has played important function.
In summary, present invention process step is simple, reasonable in design and easy construction, construction effect are good, can be easy, quick
Large span bias Recumbent steel box tied arch bridge Buoys arrangement work progress is completed, and construction quality is easy to ensure.
Below by drawings and examples, technical scheme is described in further detail.
Brief description of the drawings
Fig. 1 is the process flow diagram of the present invention.
Fig. 1-1 by the present invention construction large span bias Recumbent steel box tied arch bridge bridge superstructure vertical bridge to
Structural representation.
Fig. 1-2 by the present invention construction large span bias Recumbent steel box tied arch bridge bridge superstructure direction across bridge
Structural representation.
Fig. 1-3 by the present invention construction large span bias Recumbent steel box tied arch bridge bridge floor supporting construction planar junction
Structure schematic diagram.
Fig. 1-4 is the Construction State schematic diagram of the present invention.
Fig. 2 is the structural representation of sliding system of the present invention.
Fig. 3 is the use state reference chart of sliding system of the present invention.
Fig. 4 is the direction across bridge structural representation of moving supporting device of the present invention.
Fig. 5 is the vertical bridge of moving supporting device of the present invention to structural representation.
Fig. 6 is the use state reference chart of trailer system of the present invention.
Fig. 7 is the structural representation of present invention traction counter-force seat.
Fig. 8 is Fig. 7 top view.
Fig. 9 is the structural representation of guide holder of the present invention.
Description of reference numerals:
1-main arch rib；2-askew arch rib；3-principal series beam；
4-oblique binder；5-side longeron；6-jack stringer；
7-side crossbeam；8-middle cross beam；9-vertical suspension rod；
10-oblique suspension rod；11-midfoot support longeron；12-lateral connection beam；
13-middle longeron；14-interim vertical supporting frame；15-bridge bottom bracing structure；
16-1-falsework；16-2-slideway longeron；16-3-sliding rail；
16-4-straight skidding car；17-1-traction counter-force seat；17-11-bottom plate；
17-12-backing plate；17-13-oblique strut；The crab-bolts of 17-14-first；
17-15-gusset；17-16-vertical supporting post；17-2-jack；
17-31-hinged seat；17-32-fixed seat；17-33-limit pull rod；
17-4-steel strand wires；17-5-guide holder；17-51-bedplate；
17-52-locating part；17-53-horizontal shelf；The crab-bolts of 17-54-second；
17-55-arc-shaped limit steel plate；17-56-vertical supporting plate；18-1-barge；
18-2-temporary support；18-21-supporting frame；18-22-longitudinal support beam；
18-23-cross-brace beam；18-24-support post；18-25-horizontal brace rod；
18-26-bridging；18-27-skewed horizontal load post；18-28-oblique connecting rod；
18-3-direction across bridge distribution beam；19-reinforced beam.
Embodiment
A kind of large span bias Recumbent steel box tied arch bridge Buoys arrangement construction technology as shown in Figure 1, arch of constructing
Bridge is the bowstring arch bridge being erected on river course, the bowstring arch bridge be large span bias Recumbent steel box tied arch bridge and it include
Bridge substructure and the bridge superstructure being supported on the bridge substructure, with reference to Fig. 1-1, Fig. 1-2 and Fig. 1-3,
The bridge superstructure includes the two arch bridge superstructures symmetrically laid in left and right, and the arch bridge superstructure is included in vertical
Main arch rib 1 to laying, the askew arch rib 2 positioned at the outside of main arch rib 1 and the arch rib bottom below main arch rib 1 and askew arch rib 2
Supporting construction, the askew arch rib 2 are gradually outward-dipping from top to bottom；The arch rib bottom in two arch bridge superstructures
Supporting construction is fastenedly connected by portion connecting structure under arch rib and is integrated, two arch rib bottom bracing structures and the arch rib
Lower portion connecting structure forms bridge floor supporting construction, and being tiled in the bridge floor supporting construction has floorings；The bridge substructure
Including two bridge bottom bracing structures 15 being supported respectively to the both ends of the bridge superstructure, two bridges
Bottom bracing structure 15 is located at the both sides in the river course respectively；
The arch rib bottom bracing structure includes being connected to principal series beam 3 between two arch springings of main arch rib 1, is connected to tiltedly
Oblique binder 4 between two arch springings of arch rib 2, positioned at principal series beam 3 and tiltedly the side longeron 5 between binder 4 and outside oblique binder 4
The jack stringer 6 of side, the principal series beam 3 are located at the underface of main arch rib 1, and the main arch rib 1 and askew arch rib 2 are along vertical bridge to cloth
If the principal series beam 3, oblique binder 4, side longeron 5 and jack stringer 6 along vertical bridge to lay and its be laid in same level
On；The principal series beam 3, oblique binder 4, connected between longeron 5 and jack stringer 6 by multiple tracks in the while fastening of crossbeam 7 of parallel laying
One is connected in, side crossbeam 7 described in multiple tracks is laid along direction across bridge and it is laid in same level；The main arch rib 1 with
It is attached between principal series beam 3 by more vertical suspension rods 9, the more vertical suspension rods 9 are along vertical bridge to carrying out cloth from front to back
And if it is laid on same vertical plane；Connected between the askew arch rib 2 and jack stringer 6 by more oblique suspension rods 10
Connect, for the more oblique suspension rods 10 along vertical bridge to being laid from front to back, the oblique suspension rod 10 is gradually outside from top to bottom
Tilt；
With reference to Fig. 1-4, when carrying out Buoys arrangement construction to constructed arch bridge, comprise the following steps：
Step 1: preliminary preparation：Buoys arrangement construction is applied with sliding system on river course side bank
Work, and Buoys arrangement construction is processed with moving supporting device；
With reference to Fig. 2, Fig. 3, the sliding system include the bridge superstructure is supported temporary support structure,
The glide path being laid on the temporary support structure and the upper slide device above the glide path, the temporary support
Structure and the glide path are along vertical bridge to laying；
It is located at the bridge bottom bracing structure 15 of the sliding system side in two bridge bottom bracing structures 15
For assembled lateral support structure, another described bridge bottom bracing structure 15 is opposite bank supporting construction；The temporary support structure
It is laid in two bridge bottom bracing structures 15 on same vertical plane, the assembled lateral support structure is positioned at described interim
In supporting construction；
As shown in Figure 4, Figure 5, the moving supporting device is on the river course and can carried out on the river course
Front and rear support meanss；The moving supporting device includes barge 18-1 and faced what the bridge superstructure was supported
When support frame 18-2, the temporary support 18-2 be supported in the front side bottom of the bridge superstructure；The temporary support
Frame 18-2 is fixedly mounted on barge 18-1 cabin middle inside, and the temporary support 18-2 includes being welded by more straight rod members
It is connected into the supporting frame 18-21 of type；The front and rear sides bottom of the temporary support 18-2 is provided with to be carried out to barge 18-1
Direction across bridge the distribution beam 18-3, the direction across bridge distribution beam 18-3 of reinforcing are laid along direction across bridge and it is located at barge 18-1 cabin
Interior, the left and right ends of the direction across bridge distribution beam 18-3 are separately fixed on the madial wall of the cabin, the direction across bridge distribution
Beam 18-3 bottoms are fixed on the inside bottom of the cabin；
Step 2: bridge superstructure land is assembled：Using sliding system described in step 1, the bridge top is tied
Two arch bridge superstructures of structure carry out assembly respectively, obtain assembled shaping and are supported on the temporary support structure
Two arch bridge superstructures, and two arch bridge superstructures is mounted on the upper slide device；
Step 3: bridge superstructure floating and hauling construction, process are as follows：
Step 301, trailer system construction：Buoys arrangement construction is constructed with trailer system；
As shown in fig. 6, the trailer system includes being fixed on traction anchor structure on front side of the bridge superstructure, right
The bridge superstructure carries out haulage gear dilatory forward and the traction counter-force seat 17-1 for haulage gear installation, institute
State the front that traction counter-force seat 17-1 is located at the bridge superstructure；The traction counter-force seat 17-1 and the sliding system
It is located at the both sides in the river course respectively；The haulage gear is the jack 17-2 along vertical bridge to laying；The jack 17-2
For centre-hole jack and its it is described traction anchor structure between be attached by steel strand wires 17-4；The traction counter-force seat
17-1 is located at the front side of the opposite bank supporting construction；
Step 302, arch bridge superstructure floating and hauling construction：Using trailer system described in step 301, institute in step 1 is utilized
Sliding system and the moving supporting device are stated, two in the step 2 arch bridge superstructures are respectively forwardly drawn, directly
Drawn in place to by two arch bridge superstructures, and the rear and front end of the arch bridge superstructure is respectively supported at two
On the individual bridge bottom bracing structure 15；
Step 4: portion connecting structure is constructed under arch rib：Portion connecting structure under the arch rib is constructed, and by described
The arch rib bottom bracing structure in two arch bridge superstructures is fastenedly connected and is integrated by portion connecting structure under arch rib,
Obtain the bridge floor supporting construction of construction molding；
Step 5: floorings are mated formation：The construction tiling floorings in bridge floor supporting construction described in step 4.
In the present embodiment, floorings described in step 5 are spliced by polylith bridge floor prefabricated board, the bridge floor prefabricated board
For reinforced concrete prefabricated board, it is attached between adjacent two pieces of bridge floor prefabricated boards by the wet seam of concrete；
When progress floorings are mated formation in step 5, the bridge floor described in polylith that first tiled in the bridge floor supporting construction is prefabricated
Plate, then to being constructed respectively by the wet seam of concrete between the adjacent two pieces bridge floor prefabricated boards.
In the present embodiment, the quantity of upper slide device described in step 1 is two, two upper slide device difference
Installed in two arch bridge superstructure bottoms；
The quantity of trailer system described in step 301 is two, and two trailer systems are located at two arches respectively
The front of bridge superstructure；The traction anchor structure in each trailer system is each attached to the arch drawn
The lower front of bridge superstructure, the traction counter-force seat 17-1 in each trailer system are respectively positioned on the arch bridge drawn
The front of superstructure；
When arch bridge superstructure floating and hauling construction is carried out in step 302, using two trailer systems in step 2 two
The individual arch bridge superstructure is drawn forward respectively.
When arch bridge superstructure floating and hauling construction is carried out in the present embodiment, in step 302, first the arch bridge top is tied
Structure is drawn forward；Carried out forward after the arch bridge superstructure is dilatory in place, then to arch bridge superstructure another described
It is dilatory.
In the present embodiment, in step 302 during arch bridge superstructure floating and hauling construction, arch bridge top any one described is tied
When structure draw forward, synchronously drawn forward using the trailer system symmetrically laid of left and right two.
As shown in Figure 2 and Figure 3, temporary support structure described in step 1 includes multiple along vertical bridge to laying from front to back
Falsework 16-1；The glide path and two bridge bottom bracing structures 15 are laid on same vertical plane, the bridge
Beam superstructure is located at the surface of the glide path；The glide path includes four along slideway longeron 16-2 of the vertical bridge to laying
Sliding rail 16-3 described in four directly over slideway longeron 16-2, the principal series beam 3 and oblique binder 4 are laid in respectively with four
Underface be provided with together the sliding rail 16-3；Slideway longeron 16-2 structure all same described in four and its is uniform
Be located in same level, the structure all same of sliding rail 16-3 described in four and its be laid in same level；Institute
Stating slide device includes multiple straight skidding car 16-4, Duo Gesuo that straight skidding is carried out along sliding rail 16-3 described in four
Straight skidding car 16-4 is stated along vertical bridge to being laid from front to back and it is respectively positioned on described in four on sliding rail 16-3；It is multiple
The straight skidding car 16-4 is mounted on the bridge superstructure bottom, and multiple straight skidding car 16-4 structure is equal
It is identical and it is respectively positioned on the surface of the glide path.
, need to also be on each arch bridge top when bridge superstructure land assembly is carried out in the present embodiment, in step 2
Temporary supporting system is set up in structure, the temporary supporting system is entered to main arch rib 1 and askew arch rib 2 from front to back including multiple
The interim vertical supporting frame 14 of row support, multiple interim vertical supporting framves 14 are erected on the arch rib bottom bracing structure
On, the main arch rib 1 and askew arch rib 2 are supported on multiple interim vertical supporting framves 14；
It is interim vertical in straight skidding car 16-4 quantity described in the upper slide device and the temporary supporting system
The quantity of support frame 14 is identical, and the underface of each interim vertical supporting frame 14 is provided with a straight skidding car 16-
4。
In the present embodiment, moving supporting device described in step 1 is also adjusted including multiple positions to barge 18-1
Whole drawing anchor, the drawing is anchored on the bank side in the river course and it is connected by drawstring with barge 18-1.
In the present embodiment, the glide path also includes multiple tracks transverse distribution beam, and transverse distribution beam described in multiple tracks is along cross-bridges
To laying, transverse distribution beam is laid in sliding rail described in slideway longeron 16-2 and four described in four from front to back described in multiple tracks
Between 16-3.
In the present embodiment, the slideway longeron 16-2 is Bailey beam.
During actual use, the slideway longeron 16-2 can also use other types of longeron.
In the present embodiment, the sliding rail 16-3 is made up of twice in the steel I-beam of parallel laying, work described in twice
Word girder steel along vertical bridge to lay and the two be laid in same level.During actual use, the sliding rail 16-3 also may be used
To use other types of slideway.
In the present embodiment, the falsework 16-1 includes portal support and the branch support group for portal support support
Plinth, the brace foundation are reinforced concrete foundation, and the portal support is shape steel bracket.
Also, the brace foundation is Extended chemotherapy, support is firm, reliable.
In the present embodiment, the straight skidding car 16-4 includes vehicle frame and multiple is arranged on the bottom of frame from front to back
And the roller bearing of straight skidding is carried out described in Neng tetra- on sliding rail 16-3, multiple roller bearings are laid along direction across bridge and it
It is laid in same level.
Also, the vehicle frame is the shaped steel vehicle frame being welded by more shaped steel rod members.Thus, not only simple processing, and
And use process safety, reliable, usage time length.
In the present embodiment, the straight skidding car 16-4 also includes installed in the bottom of frame and supplies multiple roller bearings
The roller bearing bracket of installation, the both ends of the every roller bearing are arranged on the roller bearing bracket by bearing.
To ensure the stabilized structure of arch bridge superstructure described in slipping, taken in each arch bridge superstructure
Provided with temporary supporting system, by the temporary supporting system, can effectively solve the whole of high center of gravity and eccentric force bowstring arch bridge
Body Stability Analysis of Structures sex chromosome mosaicism, the arch bridge superstructure is carried out synchronously to take the temporary supporting system during assembly
And if by the temporary supporting system retain to it is floating be dragged to position after remove, make tie-rod and arch rib (including main arch rib 1 and askew arch rib
2) can preferably combine integral.The temporary supporting system not only serves as facing during the arch bridge superstructure assembly
When assembling support, while also also serve as the structure sliding fulcrum force during floating drag.
In the present embodiment, institute's construction arch bridge is the main bridge of cloud pears bridge and its residing construction area is located at Wujiang urban district, and is in
The busier leg of Beijing-Hangzhou Grand Canal navigation, it is allowed to which the iceound time is of short duration.Site operation narrow field, the main pier foundation of west bank is water
Middle stake, first constructed in eastern bank assembled for the arch bridge superstructure away from old revetment 33m beyond old revetment line, the main pier of eastern bank
Construction site.
By multiple tracks it is in parallel laying between the principal series beam 3, oblique binder 4, side longeron 5 and jack stringer 6 with reference to Fig. 1-3
Side crossbeam 7 be fastenedly connected and be integrated, side crossbeam 7 described in multiple tracks is laid along direction across bridge and it is laid in same level
On；
It is attached between the main arch rib 1 and principal series beam 3 by more vertical suspension rods 9, the more vertical edges of suspension rod 9
Vertical bridge to being laid and it is laid on same vertical plane from front to back；By more between the askew arch rib 2 and jack stringer 6
The oblique suspension rod 10 of root is attached, and the more oblique suspension rods 10 are along vertical bridge to being laid from front to back, the oblique suspension rod
10 is gradually outward-dipping from top to bottom；
It is fastenedly connected between the principal series beam 3 of two arch bridge superstructures by multiple tracks in the middle cross beam 8 of parallel laying
It is integrated, multiple tracks wherein the middle cross beam 8 is laid along direction across bridge and it is laid in same level；Two arch bridge tops
Longeron 13 in multiple tracks are provided between the principal series beam 3 of structure from left to right, middle longeron 13 described in multiple tracks along vertical bridge to lay and
It is laid in same level with principal series beam 3；Multiple tracks wherein the middle cross beam 8 forms arch rib bottom with middle longeron 13 described in multiple tracks
Attachment structure.
In the present embodiment, bridge floor is carried out when being constructed in step 4 to portion connecting structure under the arch rib and in step 5
When plate is mated formation, symmetrically carried out since two sides, first with 50 tons of automobile loop wheel machines on two sides ground to middle cross beam 8, middle longeron 13
Lifted with the bridge floor prefabricated board.
In the present embodiment, the quantity of wherein the middle cross beam 8 is identical with the quantity of side crossbeam 7 in the arch bridge superstructure, and
And the left and right sides of per pass wherein the middle cross beam 8 is provided with the side crossbeam 7 together.Jack stringer 6 in the arch bridge superstructure
Twice are provided with from the inside to the outside between oblique binder 4 along vertical bridge to the midfoot support longeron 11 of laying, middle part described in twice is propped up
It is Curved beam to support longeron 11, and midfoot support longeron 11 described in twice is laid in same level with oblique binder 4；Twice institute
State midfoot support longeron 11 by described in multiple tracks while crossbeam 7 and principal series beam 3, oblique binder 4, while longeron 5 and the fastening of jack stringer 6 connect
It is connected in one.
The principal series beam 3, oblique binder 4 and side longeron 5 are straight longeron, and the jack stringer 6 is Curved beam, described outer vertical
The both ends of beam 6 are separately fixed on the outside of the both ends of oblique binder 4；
Fastening company is carried out by multiple tracks lateral connection beam 12 between main arch rib 1 and askew arch rib 2 in the arch bridge superstructure
Connect.
Wherein, the principal series beam 3 and oblique binder 4 are also referred to as tie-rod, and tie-rod is steel box structure, and oblique binder 4 is also referred to as side system
Beam.
The main arch rib 1 is assembled from front to back by multiple main arch rib sections, and the askew arch rib 2 is by multiple askew arch rib sections
Section is assembled from front to back, and the main arch rib section and the tiltedly rib-lifting section are curved steel tube section.
In the present embodiment, the arch rib bottom bracing structure in two arch bridge superstructures passes through under the arch rib
Portion connecting structure, which is fastenedly connected, to be integrated, the arch rib bottom bracing structure in two arch bridge superstructures and the arch
Portion connecting structure forms bridge floor supporting construction under rib, and being tiled in the bridge floor supporting construction has floorings；The floorings are steel
Reinforced concrete floorings.
The floorings are spliced by polylith bridge floor prefabricated board, and the bridge floor prefabricated board is reinforced concrete prefabricated board,
It is attached between adjacent two pieces of bridge floor prefabricated boards by the wet seam of concrete.
In the present embodiment, the principal series beam 3, oblique binder 4 and side longeron 5 are straight longeron, and the jack stringer 6 is arc
Beam, the both ends of the jack stringer 6 are separately fixed on the outside of the both ends of oblique binder 4.
The main arch rib 1 is assembled from front to back by multiple main arch rib sections, and the askew arch rib 2 is by multiple askew arch rib sections
Section is assembled from front to back, and the main arch rib section and the tiltedly rib-lifting section are curved steel tube section.
In the present embodiment, the main arch rib section and the tiltedly rib-lifting section are rectangular steel pipe section, the main arch rib
The thickness of slab of section is 24mm~28mm and its cross sectional dimensions is 2050mm × 2000mm, four side walls of the main arch rib section
Inside is provided with I-steel longitudinal stiffener.The calculating across footpath 98m of the main arch rib 1, rise 20m, ratio of rise to span 1/4.9, encircles
Axis uses second-degree parabola.
The thickness of slab of the tiltedly rib-lifting section is 18mm~30mm and its cross sectional dimensions is 1450mm × 1400mm, described oblique
The inside of the top plate of rib-lifting section and two webs is provided with I-steel longitudinal stiffener.Counted in the plane of the askew arch rib 2
Across footpath 98m is calculated, rise 21.152m, ratio of rise to span 1/4.63, arch uses second-degree parabola.
In the present embodiment, the angle between the askew arch rib 2 and vertical plane is 19 °.
In the present embodiment, the vertical suspension rod 9 uses high tensile steel wire finished product rope, the vertical bridge of vertical suspension rod 9 to spacing be 3m,
The arch rib end (i.e. upper end) of vertical suspension rod 9 is fixing end and its binder end (i.e. lower end) is stretching end.
The oblique suspension rod 10 is external prestressing tie-rod, and the external prestressing tie-rod is using filled-type epoxy coating
Steel strand wires.
During actual use, the upper slide device is thus described by multiple straight skidding car 16-4 laid from front to back
Upper slide device is used the interruption slideway being made up of multiple straight skidding car 16-4 by the layout points of the temporary supporting system, and
And the glide path uses the form of the continuous sliding rail of shaped steel spelling, it can meet that steel construction is floating and drag structure stress requirement.Also,
Using the roller bearing as sliding component in the straight skidding car 16-4, and roller bearing bracket is set, the roller bearing bracket uses
Steel plate butt welding forms, wide with sliding rail 16-3, and the height of the roller bearing bracket is identical thus right with the camber of principal series beam 3
When the arch bridge superstructure carries out assembled, binder (including principal series beam 3 and oblique binder 4) can be adjusted using the upper slide device
Camber.The straight skidding car 16-4 tops are reliably connected with binder bottom, and horse is used in the bottom of the straight skidding car 16-4
Plate is connected temporarily with sliding rail 16-3, is waited to float and is dragged preceding dismounting.
During practice of construction, when carrying out assembled to the arch bridge superstructure, first to the arch rib bottom bracing structure
Assembly is carried out, then sets up the temporary supporting system, assembly is carried out to main arch rib 1 and askew arch rib 2 afterwards.Wherein, to the arch
When rib bottom bracing structure carries out assembled, first principal series beam 3 and oblique binder 4 are installed, then opposite side longeron 5, jack stringer 6 and side
Crossbeam 7 carries out assembly.When carrying out assembly to main arch rib 1 and askew arch rib 2, assembly, and the He of main arch rib 1 are carried out from both ends to centre
Askew arch rib 2 is synchronous to carry out assembly.
After the completion of the arch bridge superstructure assembly, the upper slide device can be utilized to the arch bridge superstructure
Camber is adjusted, and is specifically accordingly needing the straight skidding car 16-4 at adjustment position to pad steel loading with the arch bridge superstructure
The mode of backing plate is adjusted.
As shown in Figure 4, Figure 5, in the present embodiment, the direction across bridge distribution beam 18-3 is in vertically to the girder truss of laying.
Also, the direction across bridge distribution beam 18-3 is the shaped steel distribution beam that is welded by more shaped steel rod members, the type
It is fixedly connected between steel distribution beam and the cabin with welding manner.
In the present embodiment, direction across bridge distribution beam 18-3 is separately fixed at temporary support 18-2 front and rear sides described in twice
Bottom.
In the present embodiment, the straight rod member is steel pipe.
During actual use, the straight rod member can also be shaped steel rod member.
In the present embodiment, temporary support 18-2 described in step 1 is also individually fixed in supporting frame including left and right twice
The longitudinal support beam 18-22 of top and twice are respectively supported above longitudinal support beam 18-22 described in twice at left and right sides of 18-21
Cross-brace beam 18-23, longitudinal support beam 18-22 described in twice is in vertical bridge to laying and the two is laid in same level
On, cross-brace beam 18-23 described in twice is laid in direction across bridge and the two is laid in same level.
In the present embodiment, supporting frame 18-21 described in step 1 includes four support post 18-24, four branch
Support column 18-24 is laid on four summits of a rectangle respectively, by cutting between adjacent two support post 18-24
Knife support 18-26 and twice horizontal brace rod 18-25 is fastenedly connected, and horizontal brace rod 18-25 described in twice is located at respectively to be cut
Knife supports 18-26 both sides up and down.
Meanwhile each support post 18-24 the week side of boss is provided with column ruggedized construction, the column ruggedized construction bag
Four vertical strengthening steel slabs are included, four vertical strengthening steel slabs are respectively to be laid in support post 18-24 front sides, rear side, a left side
The front side strengthening steel slab on side and right side, backside reinforcement steel plate, left side strengthening steel slab and right side strengthening steel slab, the front side reinforce steel
In bridge is indulged to laying, the left side strengthening steel slab and the right side strengthening steel slab are in cross-bridges for plate and the backside reinforcement steel plate
To laying；A cross ribbed stiffener is provided with each vertical strengthening steel slab.
In the present embodiment, the region that support post 18-24 is fixed on the cabin is column fixed area, each column
Vertically and horizontally ruggedized construction is provided with the outside of fixed area；The vertically and horizontally ruggedized construction includes the horizontal stroke that multiple tracks is laid from front to back
The longitudinal stiffener laid from left to right to ribbed stiffener and multiple tracks, longitudinal stiffener described in transverse stiffener described in multiple tracks and multiple tracks
It is laid in same level and it is weldingly fixed on the inside bottom of the cabin；Transverse stiffener passes through described in multiple tracks
Longitudinal stiffener described in multiple tracks, which is fastenedly connected, to be integrated.
In the present embodiment, one of skewed horizontal load post 18-27 is provided with the outside of each support post 18-24, it is described
Skewed horizontal load post 18-27 upper end is fixed on supported support post 18-24 upper outsides, and skewed horizontal load post 18-27 bottoms
Portion is fixed on the inside bottom of the cabin；Under the middle part of the skewed horizontal load post 18-27 and the support post 18-24 supported
It is attached between portion by oblique connecting rod 18-28.
In the present embodiment, the barge 18-1 selects a 1200t pontoon to ensure floating drag as the floating mobile front fulcrum dragged
The security of construction.To increase the barge 18-1 floating ability of dragging, barge 18-1 need to be reinforced, specifically set up direction across bridge point
With beam 18-3, while also column ruggedized construction need to be provided with each support post 18-24 the week side of boss, and in the cabin
The upper fixed support post 18-24 column fixed area sets vertically and horizontally ruggedized construction.
Meanwhile need full water to shake down after the completion of the barge 18-1 reinforcings, the region for being unsatisfactory for draft requirement is carried out
Dredging, it is ensured that floating and hauling construction is smoothed out.Also, also need to be determined barge 18-1 ballasting water, should consider to refute
Ship 18-1 safety and stability, ensure that the floating arch bridge superstructure dragged can free in and out again.Due to different operating modes
Under it is floating drag during, weight that the arch bridge superstructure is assigned on barge 18-1 is different, and it is real need to pass through pressure water
When adjust barge 18-1 absolute altitude and position of centre of gravity, accurately calculate support reaction suffered by barge 18-1 under each operating mode, consider simultaneously
Standby water ballast in barge 18-1, temporary support 18-2 elastic compression and cabin, it is determined that each cabin internal pressure draining
Amount, to ensure barge 18-1 bearing height, while ensures barge 18-1, temporary support 18-2 and the arch bridge superstructure
Center of gravity be generally aligned in the same plane in, realize vertical elevation, plane bias internal and the stability control of barge 18-1 during floating drag.
According to barge 18-1 physical dimension and floating weight is dragged to ensure that floating and hauling construction can be smoothed out, before floating and hauling construction
(weight of i.e. described arch bridge superstructure), in addition to being reinforced to barge 18-1, it need to be also dragged in floating on barge 18-1
Put increase temporary support 18-2, temporary support 18-2 and use space truss structure.The temporary support 18-2 and horizontal stroke
Bridge is reliably connected to distribution beam 18-3, so as to which load floating will be dragged to uniformly transfer to hull is longitudinal and horizontal shifting board, ensures hull
Safety.
Meanwhile also need to carry out subdivision isolation to barge 18-1, the water bag of enough submersible pumps and corresponding bore is purchased,
Ensure each cabin independence pressure water, calculating each cabin need to press each cabin in water and draining operating mode to need displacement, float
Waterline scale is set before dragging and carries out pressure water test, it is determined that accurately pressing drainage situation.
As shown in Figure 7, Figure 8, counter-force seat 17-1 is drawn described in step 301 includes bottom plate 17-11, multiple tracks from left to right admittedly
Due to the vertical supporting post 17-16 on bottom plate 17-11, it is laid in the backing plate 17-12 on front side of vertical supporting post 17-16 described in multiple tracks
Laid with two gussets for being separately fixed at top at left and right sides of bottom plate 17-11 17-15, the backing plate 17-12 in direction across bridge and
It is in vertically to laying；The backing plate 17-12 is fixed on bottom plate 17-11, and vertical supporting post 17-16 rear side is equal described in per pass
It is provided with oblique strut 17-13 together；The bottom plate 17-11 be horizontal steel plate and its fastened by multiple first crab-bolt 17-14
It is fixed on fixed support structure, multiple mounting holes for the first crab-bolt 17-14 installations is provided with the bottom plate 17-11；Multiple tracks
For the oblique strut 17-13 in vertical bridge to laying, oblique strut 17-13 upper end, which is propped up, described in per pass peaks at backing plate 17-12
On, oblique strut 17-13 bottoms are each attached on bottom plate 17-11 described in per pass；
Two gusset 17-15 in vertically to lay and the two respectively be located at jack 17-2 the left and right sides, institute
Jack 17-2 and two gusset 17-15 are stated along vertical bridge to laying, the jack 17-2 and two gusset 17-
15 are respectively positioned on front side of backing plate 17-12, and the jack 17-2 is supported on bottom plate 17-11, and jack 17-2 is installed in two institutes
State between gusset 17-15；The rear portion branch of the jack 17-2 is withstood on backing plate 17-12.
In the present embodiment, the jack 17-2 be centre-hole jack and its it is described traction anchor structure between pass through
Steel strand wires 17-4 is attached.
Anchor structure is drawn in the present embodiment, described in step 301 to be included being fixed on front side of the bridge superstructure
Hinged seat 17-31, the fixed seat 17-32 fixed on front side of hinged seat 17-31 and for steel strand wires 17-4 rear ends and left and right two
Spacing limit pull rod 17-33, the fixed seat 17-32 are carried out to fixed seat 17-32 and are arranged on hinged seat 17- in hinged way
On 31；Two limit pull rod 17-33 are symmetrically laid in the fixed seat 17-32 left and right sides, each limit pull rod 17-
33 front end is each attached on fixed seat 17-32 lateral wall, and each the rear end of the limit pull rod 17-33 is each attached to described
On bridge superstructure.
Herein, the hinged seat 17-31 and limit pull rod 17-33 are each attached in the arch bridge superstructure.
In the present embodiment, it is attached between the fixed seat 17-32 and hinged seat 17-31 by jointed shaft 17-4, institute
Jointed shaft 17-4 is stated to lay in direction across bridge.
In the present embodiment, the backing plate 17-12 and gusset 17-15 are the vertical steel being weldingly fixed on bottom plate 17-11
Plate.
In the present embodiment, the vertical supporting post 17-16 is the vertical I-shaped that bottom is weldingly fixed on bottom plate 17-11
Steel, the oblique strut 17-13 are I-steel.
During actual use, the vertical supporting post 17-16 and oblique strut 17-13 can also use other types of shaped steel
Rod member.In the present embodiment, the vertical supporting post 17-16 and oblique strut 17-13 quantity are twice.
During actual processing, can according to specific needs, quantity to vertical supporting post 17-16 and oblique strut 17-13 and
Each vertical supporting post 17-16 and each oblique strut 17-13 installation position adjust accordingly respectively.
During actual use, the external diameter of the jack 17-2 is Φ 350mm~Φ 450mm；
The backing plate 17-12 and gusset 17-15 are rectangular steel plates；
The height of the backing plate 17-12 is more than jack 17-2 external diameter, the height of the backing plate 17-12 for 400mm~
500mm；
The height of the gusset 17-15 is less than jack 17-2 external diameter, the height of the gusset 17-15 for 150mm~
250mm。
Also, the bottom plate 17-11, backing plate 17-12 and gusset 17-15 thickness of slab are 15mm~25mm.
In the present embodiment, the external diameter of the jack 17-2 is Φ 400mm；The height of the backing plate 17-12 is 450mm,
The height of the gusset 17-15 is 200mm, and bottom plate 17-11, backing plate 17-12 and gusset 17-15 thickness of slab are 20mm.
During actual use, can according to specific needs, height and bottom plate 17-11 to backing plate 17-12 and gusset 17-15,
Backing plate 17-12 and gusset 17-15 thickness of slab adjust accordingly respectively.
The drawing anchor device fixed for steel strand wires 17-4 is set to be fixed easy, on the fixed seat 17-32.
Meanwhile trailer system described in step 301 also includes being laid on the bottom bracing structure and to steel strand wires 17-
On rear side of traction counter-force seat 17-1, the guide holder 17-5 is located at 4 the guide holder 17-5, the guide holder 17-5 being oriented to
Draw on rear side of counter-force seat 17-1.
As shown in figure 9, the guide holder 17-5 is separately fixed at bedplate 17-51 or so including bedplate 17-51, two
The locating part 17-52 of both sides, the vertical supporting plate 17-56 being fixed between two locating part 17-52 and it is supported in vertical
Horizontal shelf 17-53 on supporting plate 17-56, the vertical supporting plate 17-56 bottoms are fixed on bedplate 17-51；It is described
Bedplate 17-51 is fixed on the bottom bracing structure by multiple second crab-bolt 17-54；The horizontal shelf 17-53 with
The guide groove being oriented to steel strand wires 17-4 is formed between two locating part 17-52.
In the present embodiment, the guide holder 17-5 also includes two arcs being individually fixed in above horizontal shelf 17-53
Spacing steel plate 17-55, two arc-shaped limit steel plate 17-55 in it is symmetrical lay and the two be separately fixed at two it is described spacing
On part 17-52.
In the present embodiment, the bedplate 17-51 and horizontal shelf 17-53 are horizontal steel plate, the locating part 17-52
For vertical I-steel, the vertical supporting plate 17-56 is vertical steel plate.
During actual use, the locating part 17-52 can also use other types of shaped steel rod member.
Because the rear and front end of the bridge superstructure is respectively supported on two bridge bottom bracing structures 15, two
Bridge bottom bracing structure 15 in the bridge bottom bracing structure 15 positioned at the sliding system side is assembled collateral support
Structure, another described bridge bottom bracing structure 15 are opposite bank supporting construction.
The fixed support structure is reinforced concrete structure, the reinforced concrete structure be reinforced beam 19,
Reinforced Concrete Pier Column, reinforced concrete foundation etc..In the present embodiment, the traction counter-force seat 17-1 and guide holder 17-5 is solid
Due on the reinforced beam 19 in front of the opposite bank supporting construction.
During practice of construction, the traction anchor structure is first laid on front side of the arch bridge superstructure, then in the arch bridge
Traction counter-force seat 17-1 and guide holder 17-5 is laid in the front of superstructure, and installs jack on traction counter-force seat 17-1
It 17-2, will be attached between jack 17-2 and the traction anchor structure by steel strand wires 17-4, and make steel strand wires 17-4
Passed through out of guide holder 17-5 guide groove, start jack 17-2 afterwards.
During practice of construction, when floating drag is carried out to an arch bridge superstructure, can use it is multiple from left to right
The trailer system laid synchronously is drawn, and multiple trailer systems are along vertical bridge to being laid.
In the present embodiment, when floating drag is carried out to an arch bridge superstructure, using the institute symmetrically laid of left and right two
Trailer system is stated synchronously to be drawn.Also, the jack 17-2 uses continuous jack, the steel strand wires 17-4 uses 5
Root underrelaxation steel strand wires.Using continuous centre-hole jack, by hydraulic power unit and supporting control system float and drag traction.
Continuous jack substitutes hoist engine, make it is whole floating be pulled through journey slowly, smoothly carry out, avoid and altered caused by elevator machine travel
It is dynamic, after slip phenomenon.Meanwhile continuous jack accurately controls tractive force by control system, make to float arch bridge top when dragging
The journal offset that structure occurs is smaller, and own as main deviation-rectifying system during floating drag by regulation at left and right sides of
Tractive force successfully solve infinite place device it is floating be pulled through journey correction problem.
Due to traction counter-force seat 17-1 bear draw counter-force and its effect it is very crucial, for ensure traction counter-force seat 17-1 energy
Enough traction counter-forces are born, traction counter-force seat 17-1 uses shaped steel and steel plate package assembly, and is consolidated by chemical anchor bolts
It is fixed.Simultaneously as dilatory distance is big, guide holder 17-5 need to be set halfway, ensure steel strand wires 17-4 smooth-goings, normal use.
In the present embodiment, needed on front side of each arch bridge superstructure set two traction anchor structures, two
The individual traction anchor structure is laid in principal series beam 4 and the front end of oblique binder 4 respectively, due to the not eccentric knot of the arch bridge superstructure
Structure, the setting for drawing anchor point are symmetrical arranged according to the calculating position of centre of gravity of the arch bridge superstructure, and wherein principal series beam side is located at
Arch springing end, side binder side are located at end floor beam top plate, and both are consistent level height.In addition, steel stranded wire penetrating adapter installation should
Carry out successively, avoid the mutual sequence of steel strand wires, cause to produce steel strand wires disrumpent feelings danger during traction.It is good to play steel strand wires 17-4
Good hauling ability, it should also follow the positive and negative principle for twisting with the fingers alternately lashing.After steel strand wires 17-4 is put on, anchor point should be carried out again
Check, prevent that steel strand wires 17-4 loosens during traction.Before formally drawing, tune rope is carried out using jack 17-2, makes every side
Five steel strand wires 17-4 can simultaneously uniform stressed.
In the present embodiment, before carrying out arch bridge superstructure floating and hauling construction in step 302, before the arch superstructure
End is supported in the temporary support structure positioned at most on the falsework 16-1 of front side.Using described in trailer system dragging
Arch superstructure steadily moves forward, and treats that the interim vertical supporting frame 14 in the temporary supporting system positioned at most front side is located at
During the moving supporting device, barge 18-1 buys securities with all one's capital and anchors into the adjustment of row plan-position first with the bank of two sides after ballast, makes to refute
Ship 18-1 is slowly moved to the lower section of interim vertical supporting frame 14 of most front side, and adjustment pressure Cang Shui rises hull, while observes vertical
The stress variation of (i.e. rigid support point) at sliding car 16-4 come to nothing situation and each interim Support Position of vertical supporting frame 14
Situation, stop draining when next straight skidding car 16-4 will be disengaged from and be contacted with sliding rail face, Cang Shui mistakes are pressed in adjustment
Cheng Zhong, it is necessary to arrange special messenger to be commanded, by calculating and dividing storehouse pressure water by row pressure water test, ensureing floating towboat oceangoing ship
(i.e. barge 18-1) is slowly steady while rise, and controls the center of gravity of the center of gravity of hull and the arch bridge superstructure on vertical plane
Overlap.After the temporary support 18-2 on the arch bridge superstructure and barge 18-1 is fully connected, barge 18-1 is tightened up pair
Bank bank anchor (the bank anchor for being laid in the sliding system opposite side) simultaneously loosens assembled bank bank anchor and (is laid in the sliding system
The bank anchor of side), while jack 17-2 slowly pressurizes traction, makes the arch bridge superstructure in the punching thousand positioned at opposite bank
Slowly move to river opposite bank under the traction on jin top, the center line of the arch bridge superstructure is supervised at any time in work progress
Control, such as shifts and adjusts two groups of jack 17-2 pulling force ratio in time, while aids in adjustment using barge 18-1 bank anchor,
Continuous float is dragged to opposite bank.
When the arch bridge superstructure away from it is floating drag surplus 1.2m in place when, be now placed in the straight skidding car 16-4 positions of most rear side
In the front end of glide path, traction need to be suspended, cabin draining is carried out, monitor the discrepancy in elevation of the arch bridge superstructure and observe position simultaneously
In the most straight skidding car 16-4 of rear side situation of coming to nothing, treat to de-orbit positioned at the straight skidding car 16-4 of most rear side
When, the roller bearing positioned at the most straight skidding car 16-4 of rear side is taken out, continues slowly to move forward, until tying the arch bridge top
The arch springing holder base plate of structure is located at directly over main pier bearing (bearing i.e. in the supporting construction of opposite bank), and plan-position leads to when having deviation
Cross adjustment left and right jack 17-2 tractive force ratio and barge 18-1 bank anchors into row fine position, confirm that plan-position is correct
Barge 18-1 carries out ballasting afterwards, beam body is slowly fallen within bearing.The rear end of the arch bridge superstructure is by being arranged on arch springing
The bracket of end, pass through the very heavy roof fall beams of 2 400t.
It is described above, only it is presently preferred embodiments of the present invention, not the present invention is imposed any restrictions, it is every according to the present invention
Any simple modification, change and the equivalent structure change that technical spirit is made to above example, still fall within skill of the present invention
In the protection domain of art scheme.
Claims (9)
- A kind of 1. large span bias Recumbent steel box tied arch bridge Buoys arrangement construction technology, it is characterised in that：Institute's construction arch bridge To be erected at the bowstring arch bridge on river course, the bowstring arch bridge be large span bias Recumbent steel box tied arch bridge and it include bridge Beam substructure and the bridge superstructure being supported on the bridge substructure, the bridge superstructure include left and right two The individual arch bridge superstructure symmetrically laid, the arch bridge superstructure are included in the main arch rib (1) to laying vertically, positioned at main arch Askew arch rib (2) on the outside of rib (1) and the arch rib bottom bracing structure below main arch rib (1) and askew arch rib (2), the askew arch Rib (2) is gradually outward-dipping from top to bottom；The arch rib bottom bracing structure in two arch bridge superstructures passes through arch Portion connecting structure, which is fastenedly connected, under rib is integrated, two arch rib bottom bracing structures and portion connecting structure group under the arch rib Being tiled into bridge floor supporting construction, in the bridge floor supporting construction has floorings；The bridge substructure is right respectively including two The bridge bottom bracing structure (15) that the both ends of the bridge superstructure are supported, two bridge bottom bracing structures (15) it is located at the both sides in the river course respectively；The arch rib bottom bracing structure includes being connected to principal series beam (3) between two arch springings of main arch rib (1), is connected to tiltedly Oblique binder (4) between two arch springings of arch rib (2), the side longeron (5) between principal series beam (3) and oblique binder (4) and position Jack stringer (6) on the outside of oblique binder (4), the principal series beam (3) are located at the underface of main arch rib (1), the main arch rib (1) and Askew arch rib (2) is along vertical bridge to laying, and the principal series beam (3), oblique binder (4), side longeron (5) and jack stringer (6) are along vertical bridge To lay and its be laid in same level；The principal series beam (3), oblique binder (4), side longeron (5) and jack stringer (6) it Between be fastenedly connected and be integrated in the side crossbeam (7) of parallel laying by multiple tracks, side crossbeam (7) is laid along direction across bridge described in multiple tracks And it is laid in same level；Carried out between the main arch rib (1) and principal series beam (3) by more vertical suspension rods (9) Connection, the more vertical suspension rods (9) are along vertical bridge to being laid from front to back and it is laid on same vertical plane；It is described It is attached between askew arch rib (2) and jack stringer (6) by more oblique suspension rods (10), the more oblique suspension rods (10) are along vertical For bridge to being laid from front to back, the oblique suspension rod (10) is gradually outward-dipping from top to bottom；When carrying out Buoys arrangement construction to constructed arch bridge, comprise the following steps：Step 1: preliminary preparation：Buoys arrangement construction is constructed with sliding system on river course side bank, and Buoys arrangement construction is processed with moving supporting device；Temporary support structure that the sliding system includes being supported the bridge superstructure, it is laid in the interim branch Glide path on support structure and the upper slide device above the glide path, the temporary support structure and the glide path Along vertical bridge to laying；The glide path is laid in described in four and slided respectively including four along vertical bridge to the slideway longeron (16-2) of laying and four One is provided with immediately below sliding rail (16-3) directly over road longeron (16-2), the principal series beam (3) and oblique binder (4) Sliding rail described in road (16-3)；The structure all same of slideway longeron (16-2) described in four and its be laid in same level On, the structure all same of sliding rail described in four (16-3) and its be laid in same level；The upper slide device Including multiple straight skidding cars (16-4) that straight skidding is carried out along sliding rail described in four (16-3), multiple longitudinal directions are sliding Car (16-4) is moved along vertical bridge to being laid from front to back and it is respectively positioned on sliding rail described in four (16-3)；It is multiple described Straight skidding car (16-4) is mounted on the bridge superstructure bottom, and the structure of multiple straight skidding cars (16-4) is equal It is identical and it is respectively positioned on the surface of the glide path；The straight skidding car (16-4) includes vehicle frame and multiple pacified from front to back Mounted in the roller bearing for carrying out straight skidding described in the bottom of frame and Neng tetra- on sliding rail (16-3), multiple roller bearings Laid along direction across bridge and it is laid in same level；The roller bearing conduct is used in the straight skidding car (16-4) Sliding component, and roller bearing bracket is set, the roller bearing bracket is formed using steel plate butt welding；It is located at the bridge bottom bracing structure (15) of the sliding system side in two bridge bottom bracing structures (15) For assembled lateral support structure, another described bridge bottom bracing structure (15) is opposite bank supporting construction；The temporary support knot Structure and two bridge bottom bracing structures (15) are laid on same vertical plane, and the assembled lateral support structure is positioned at described In temporary support structure；The moving supporting device is can carry out on the river course and on the river course front and rear support meanss；It is described Moving supporting device includes barge (18-1) and the temporary support (18-2) being supported to the bridge superstructure, institute State the front side bottom that temporary support (18-2) is supported in the bridge superstructure；The fixed peace of the temporary support (18-2) Mounted in the cabin middle inside of barge (18-1), the temporary support (18-2) is included by more straight rod member welding fabrications Supporting frame (18-21)；The front and rear sides bottom of the temporary support (18-2) is provided with to be added to barge (18-1) Solid direction across bridge distribution beam (18-3), the direction across bridge distribution beam (18-3) along direction across bridge lay and its be located at barge (18-1) In cabin, the left and right ends of the direction across bridge distribution beam (18-3) are separately fixed on the madial wall of the cabin, the cross-bridges The inside bottom of the cabin is fixed on to distribution beam (18-3) bottom；Step 2: bridge superstructure land is assembled：Using sliding system described in step 1, to the bridge superstructure Two arch bridge superstructures carry out assembly respectively, obtain assembled shaping and be supported on the temporary support structure two The individual arch bridge superstructure, and two arch bridge superstructures is mounted on the upper slide device；Step 3: bridge superstructure floating and hauling construction, process are as follows：Step 301, trailer system construction：Buoys arrangement construction is constructed with trailer system；The trailer system includes being fixed on traction anchor structure on front side of the bridge superstructure, the bridge top is tied Structure carries out haulage gear dilatory forward and the traction counter-force seat (17-1) for haulage gear installation, the traction counter-force seat (17-1) is located at the front of the bridge superstructure；The traction counter-force seat (17-1) and the sliding system are located at respectively The both sides in the river course；The haulage gear is the jack (17-2) along vertical bridge to laying；The jack (17-2) is to wear Core type jack and its be attached between the traction anchor structure by steel strand wires (17-4)；The traction counter-force seat (17-1) is located at the front side of the opposite bank supporting construction；Trailer system described in step 301 also includes being laid on the bottom bracing structure and leading steel strand wires (17-4) To guide holder (17-5), the guide holder (17-5) is on rear side of traction counter-force seat (17-1)；The guide holder (17-5) includes bedplate (17-51), two limits being separately fixed at left and right sides of bedplate (17-51) Position part (17-52), the vertical supporting plate (17-56) that is fixed between two locating parts (17-52) and it is supported in vertical branch Horizontal shelf (17-53) on fagging (17-56), vertical supporting plate (17-56) bottom are fixed on bedplate (17-51) On；The bedplate (17-51) is fixed on the bottom bracing structure by multiple second crab-bolts (17-54)；The level The guide groove being oriented to steel strand wires (17-4) is formed between supporting plate (17-53) and two locating parts (17-52)；Step 302, arch bridge superstructure floating and hauling construction：Using trailer system described in step 301, slided using described in step 1 Shifting system and the moving supporting device, two in the step 2 arch bridge superstructures are respectively forwardly drawn, until will Two arch bridge superstructures are drawn in place, and the rear and front end of the arch bridge superstructure is respectively supported at two institutes State on bridge bottom bracing structure (15)；Step 4: portion connecting structure is constructed under arch rib：Portion connecting structure under the arch rib is constructed, and passes through the arch rib The arch rib bottom bracing structure in two arch bridge superstructures is fastenedly connected and is integrated by lower portion connecting structure, obtains The bridge floor supporting construction of construction molding；Step 5: floorings are mated formation：The construction tiling floorings in bridge floor supporting construction described in step 4.
- 2. according to the large span bias Recumbent steel box tied arch bridge Buoys arrangement construction technology described in claim 1, its feature It is：Floorings described in step 5 are spliced by polylith bridge floor prefabricated board, and the bridge floor prefabricated board is that armored concrete is pre- Making sheet, it is attached by the wet seam of concrete between adjacent two pieces of bridge floor prefabricated boards；When progress floorings are mated formation in step 5, first tile bridge floor prefabricated board described in polylith in the bridge floor supporting construction, then To being constructed respectively by the wet seam of concrete between the adjacent two pieces bridge floor prefabricated boards.
- 3. according to the large span bias Recumbent steel box tied arch bridge Buoys arrangement construction technology described in claim 1 or 2, it is special Sign is：The quantity of upper slide device is two described in step 1, and two upper slide devices are separately mounted to two institutes State arch bridge superstructure bottom；The quantity of trailer system described in step 301 is two, and two trailer systems are respectively on two arch bridges The front of portion's structure；The traction anchor structure in each trailer system is each attached on the arch bridge drawn The lower front of portion's structure, the traction counter-force seat (17-1) in each trailer system are respectively positioned on the arch bridge drawn The front of portion's structure；When arch bridge superstructure floating and hauling construction is carried out in step 302, using two trailer systems to two institutes in step 2 Arch bridge superstructure is stated to be drawn forward respectively.
- 4. according to the large span bias Recumbent steel box tied arch bridge Buoys arrangement construction technology described in claim 3, its feature It is：When arch bridge superstructure floating and hauling construction is carried out in step 302, first an arch bridge superstructure is dragged forward Draw；After the arch bridge superstructure is dilatory in place, then arch bridge superstructure another described is drawn forward.
- 5. according to the large span bias Recumbent steel box tied arch bridge Buoys arrangement construction technology described in claim 1 or 2, it is special Sign is：Temporary support structure described in step 1 includes multiple along vertical bridge to the falsework (16-1) laid from front to back； The glide path and two bridge bottom bracing structures (15) are laid on same vertical plane, the bridge superstructure position In the surface of the glide path.
- 6. according to the large span bias Recumbent steel box tied arch bridge Buoys arrangement construction technology described in claim 5, its feature It is：When bridge superstructure land assembly is carried out in step 2, it need to also set up and face in each arch bridge superstructure When support system, the temporary supporting system includes multiple from front to back facing main arch rib (1) with what askew arch rib (2) was supported When vertical supporting frame (14), multiple interim vertical supporting framves (14) are erected on the arch rib bottom bracing structure, institute State main arch rib (1) and askew arch rib (2) is supported on multiple interim vertical supporting framves (14)；The quantity of straight skidding car (16-4) described in the upper slide device and interim vertical branch in the temporary supporting system The quantity of support (14) is identical, and a straight skidding car is provided with immediately below each interim vertical supporting frame (14) (16-4)。
- 7. according to the large span bias Recumbent steel box tied arch bridge Buoys arrangement construction technology described in claim 6, its feature It is：Interim vertical supporting frame (14) in multiple interim vertical supporting framves (14) positioned at most front side is front side vertical supporting Frame；The temporary support (18-2) is located at below the front side vertical supporting frame, the temporary support (18-2) with it is described Front side vertical supporting frame, which is fastenedly connected, to be integrated.
- 8. according to the large span bias Recumbent steel box tied arch bridge Buoys arrangement construction technology described in claim 1 or 2, it is special Sign is：Supporting frame described in step 1 (18-21) includes four support posts (18-24), four support posts (18-24) is laid on four summits of a rectangle respectively, passes through scissors between adjacent two support posts (18-24) Support (18-26) and twice horizontal brace rod (18-25) are fastenedly connected, horizontal brace rod described in twice (18-25) difference position In the both sides up and down of bridging (18-26)；Each support post (18-24) the week side of boss is provided with column ruggedized construction, and the column ruggedized construction includes four Vertical strengthening steel slab, four vertical strengthening steel slabs be respectively be laid in support post (18-24) front side, rear side, left side and Front side strengthening steel slab, backside reinforcement steel plate, left side strengthening steel slab and the right side strengthening steel slab on right side, the front side strengthening steel slab and For the backside reinforcement steel plate in vertical bridge to laying, the left side strengthening steel slab and the right side strengthening steel slab are in direction across bridge cloth If；A cross ribbed stiffener is provided with each vertical strengthening steel slab；The region that support post (18-24) is fixed on the cabin is column fixed area, the outside of each column fixed area It is provided with vertically and horizontally ruggedized construction；The vertically and horizontally ruggedized construction includes the transverse stiffener laid from front to back of multiple tracks and more The longitudinal stiffener that road is laid from left to right, longitudinal stiffener described in transverse stiffener described in multiple tracks and multiple tracks are laid in same On horizontal plane and it is weldingly fixed on the inside bottom of the cabin；Transverse stiffener described in multiple tracks passes through longitudinal direction described in multiple tracks Ribbed stiffener, which is fastenedly connected, to be integrated.
- 9. according to the large span bias Recumbent steel box tied arch bridge Buoys arrangement construction technology described in claim 1 or 2, it is special Sign is：Counter-force seat (17-1) is drawn described in step 301 and is fixed on bottom plate from left to right including bottom plate (17-11), multiple tracks Vertical supporting post (17-16) on (17-11), it is laid in the backing plate (17-12) on front side of vertical supporting post (17-16) described in multiple tracks With two gussets (17-15) for being separately fixed at top at left and right sides of bottom plate (17-11), the backing plate (17-12) is in direction across bridge Lay and it is in vertically to laying；The backing plate (17-12) is fixed on bottom plate (17-11), vertical supporting post described in per pass Oblique strut (17-13) together is provided with rear side of (17-16)；The bottom plate (17-11) be horizontal steel plate and its pass through it is more Individual first crab-bolt (17-14) is fixedly secured on bottom bracing structure, is provided with the bottom plate (17-11) multiple for the first crab-bolt The mounting hole of (17-14) installation；Oblique strut (17-13) described in multiple tracks is in indulge bridge to laying, oblique strut described in per pass The upper end of (17-13), which is propped up, to be peaked on backing plate (17-12), and oblique strut (17-13) bottom is each attached to bottom plate described in per pass On (17-11)；Two gussets (17-15) in vertically to lay and the two respectively be located at jack (17-2) the left and right sides, institute Jack (17-2) and two gussets (17-15) are stated along vertical bridge to laying, described in the jack (17-2) and two Gusset (17-15) is respectively positioned on front side of backing plate (17-12), and the jack (17-2) is supported on bottom plate (17-11), jack (17-2) is installed between two gussets (17-15)；The rear portion branch of the jack (17-2) withstands on backing plate (17-12) On；The traction anchor structure includes being fixed on hinged seat (17-31) on front side of the bridge superstructure, positioned at hinged seat The fixed seat (17-32) and left and right two fixed on front side of (17-31) and for steel strand wires (17-4) rear end are entered to fixed seat (17-32) The spacing limit pull rod (17-33) of row, the fixed seat (17-32) are arranged on hinged seat (17-31) in hinged way；Two The limit pull rod (17-33) is symmetrically laid in fixed seat (17-32) left and right sides, each limit pull rod (17-33) Front end be each attached on fixed seat (17-32) lateral wall, the rear end of each limit pull rod (17-33) is each attached to institute State on bridge superstructure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610681068.XA CN106087771B (en) | 2016-08-17 | 2016-08-17 | Large span bias Recumbent steel box tied arch bridge Buoys arrangement construction technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610681068.XA CN106087771B (en) | 2016-08-17 | 2016-08-17 | Large span bias Recumbent steel box tied arch bridge Buoys arrangement construction technology |
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| Publication Number | Publication Date |
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| CN106087771A CN106087771A (en) | 2016-11-09 |
| CN106087771B true CN106087771B (en) | 2018-04-03 |
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| CN104532748A (en) * | 2014-12-15 | 2015-04-22 | 中铁上海工程局集团有限公司 | Exceeding thousand tons of linear steel trussed beam floating pushing erecting construction method |
| CN104594206A (en) * | 2014-12-22 | 2015-05-06 | 中铁大桥局集团有限公司 | Suspended type dragging anchor socket and method for steel trussed beam longitudinal displacement |
| CN204644885U (en) * | 2015-04-16 | 2015-09-16 | 中铁二十四局集团上海铁建工程有限公司 | A kind of bridge drag synchronous traction system |
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| CN104532748A (en) * | 2014-12-15 | 2015-04-22 | 中铁上海工程局集团有限公司 | Exceeding thousand tons of linear steel trussed beam floating pushing erecting construction method |
| CN104594206A (en) * | 2014-12-22 | 2015-05-06 | 中铁大桥局集团有限公司 | Suspended type dragging anchor socket and method for steel trussed beam longitudinal displacement |
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