CN106592438A - Two-column pier and middle tie beam construction method employing integral movement of trusses - Google Patents
Two-column pier and middle tie beam construction method employing integral movement of trusses Download PDFInfo
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- CN106592438A CN106592438A CN201611226934.2A CN201611226934A CN106592438A CN 106592438 A CN106592438 A CN 106592438A CN 201611226934 A CN201611226934 A CN 201611226934A CN 106592438 A CN106592438 A CN 106592438A
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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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Abstract
The invention belongs to the technical field of bridge construction and provides a two-column pier and middle tie beam construction method employing integral movement of trusses. By means of the construction method, the problems that traditional turnover form construction and climbing form construction are slow in construction progress of high bridge piers, and slip form construction affects the surface quality of pier bodies and damages inherent quality of concrete are solved. A truss platform, lifting frames, an auxiliary platform, supporting rods, a hydraulic system and formwork systems are included. The truss platform comprises transverse trusses and longitudinal trusses. The transverse trusses on the inner side are detachably connected with the truss platform. An upper opening and a lower opening of the truss platform are provided with two layers of jackscrews. An upper main rib and a lower main rib of each truss are provided with jackscrew fixing devices. The lower portion of the truss platform is connected with the auxiliary platform. The lifting frames and the truss platform are connected into a whole. Each lifting frame is supported on the corresponding supporting rod through a jack installed on a cross beam of the lifting frame. The lower ends of the supporting rods are embedded in concrete. The upper ends of the supporting rods penetrate through through holes of the hydraulic jacks. A bridge pier and a middle tie beam are constructed synchronously and quickly, the construction period is shortened, cost is reduced, operability is high, the method is economical and reasonable, and good economic benefits and social benefits are achieved.
Description
Technical field
The invention belongs to technical field of bridge construction, and in particular to a kind of twin shaft pier and middle binder truss move integrally construction
Method.
Background technology
As economic continuous development, capital construction are further speeded up, domestic bridge construction increases increasingly, especially mountain
Area's project under construction is more and more, arranges straining beam to increase the technique of pier shaft lateral stiffness in mountain highway between two-columned pier
It is used widely in bridge construction, high pier is the content frequently encountered in bridge construction, in recent years, pier shaft height is via 30
~ 50 meters are developed into and surpass hundred meters, and the restriction of landform, geomorphologic conditions is suffered from the high pier construction of mountain area, and high pier construction is urgently realized
Standardization, standardization, to ensure construction quality and construction safety, in addition, with the continuous development of building industry, construction unit is to work
The quality and schedule requirement more and more higher of journey, and the traditional overmolded and climbing formwork for construction progress for Bridge High-pier is significantly slower,
According to slding form operation, although progress is very fast, but very big frictional force is produced due to sliding between concrete and template, affect
Pier shaft surface quality, while can also damage concrete inherent quality.
The content of the invention
The present invention is significantly slower to Bridge High-pier progress using traditional overmolded and climbing formwork for construction in order to solve, using sliding formwork
Construction, although progress is very fast, but very big frictional force is produced due to sliding between concrete and template, affect pier shaft surface matter
Amount, while can also damage the problem of concrete inherent quality, there is provided a kind of twin shaft pier and middle binder truss move integrally construction
Method.
The present invention adopts the following technical scheme that realization：A kind of twin shaft pier and middle binder truss move integrally system, including
Truss platform, hoisting frame, assistance platform, support bar, hydraulic system and template system,
Described truss platform includes transverse truss and longitudiual truss, transverse truss and the detachable company of truss platform of inner side
Connect, truss platform upper and lower opening arranges two-layer jackscrew, and the upper and lower main rib correspondence jackscrew position of truss arranges jackscrew fixing device, on truss
Surface is covered with plank, and peripheral solder has guard rail, connects assistance platform under truss platform；
Described hoisting frame is connected as entirety with truss platform, is supported on support by the jack on hoisting frame crossbeam
On bar,
Described support bar is arranged at four angles of pier stud, and the lower end of support bar is embedded in concrete, and upper end passes through hydraulic jack
Through-core hole；
On the template system, correspondence jackscrew position is also provided with jackscrew fixing device；
Its twin shaft pier for completing and middle binder truss move integrally construction method, and step is as follows：
1）, truss it is assembled：Position of the support bar in pier stud is determined before assembled, with high-grade concrete pre-embedded steel slab as base
Plinth, then horizontal, longitudiual truss is installed so as to a truss structural is constituted, while platform will be ensured in same horizontal plane
On；Truss platform is connected firmly with hoisting frame, and hoisting frame is connected firmly with longitudiual truss, jack, and post upper is passed through and carried
Frame, the through-core hole of hydraulic jack are risen, with pre-embedded steel slab firm welding；
2）, model sheetinstallat and reinforcing：After the completion of first and second section pier stud concreting, second section Pier Formwork is motionless, removes the
One section Pier Formwork, in assistance platform processing template, jack is lifted, and template is promoted to Section of three Pier Formwork using jack
On position, template is fixed with truss with jackscrew, by tightening nuts adjusting template and truss space, carry out template assemblies and incite somebody to action
This section Pier Formwork is coupled with second section Pier Formwork, checks errorless after-pouring concrete using total station survey；Concrete reaches
To after strength of mould stripping remove second section Pier Formwork, be promoted to Section of four Pier Formwork position, successively form removal, turn over a liter formwork erection, mould
Plate spelling, casting concrete, cycle operation, during to middle binder position, remove inner side transverse truss, and operator are in assistance platform
On directly set up support platform, while install in binder and Pier Formwork, measurement check errorless after-pouring concrete, concrete reaches
Support platform and template are removed to after strength of mould stripping, inner side transverse truss is installed, pier stud reinforcing bar, template is installed, concrete is poured successively
Circulation, until pier top；
3）, concreting and maintenance：Concreting is carried out using symmetrical layering, after concreting is finished, uses geotextiles
Or Polypropylence Sheet is covered, and the watering maintenance immediately after concrete final set.
The truss platform is highly 180 ㎝, and width is 100 ㎝；The girder and main rib of truss platform adopts ∠ 80 × 10,
Diagonal rib adopts ∠ 63 × 10；The a diameter of 32mm of the jackscrew；The plank is 50mm, a height of 150 ㎝ in perimeter defense hurdle；It is described auxiliary
Help platform truss for [12#, surrounding every 0.5 meter be horizontally disposed with one 12 screw-thread steel of Φ, junction bolt connection, peripheral hardware guardrail,
Closed with safety net.The hoisting frame floor is [20#b；The jack climbs jack for 10t, and support bar is external diameter
48mm, the scaffold tubes of wall thickness 3.5mm.The hydraulic system is by hydraulic control panel, hydraulic jack, oil pipe, separator, needle valve
Door and adnexa composition.The template system is made up of large scale steel mould and pull bar, and leading screw holds out against reinforces punching block with split bolt；Steel
Mould is rod-pulling type punching block, and steel die thickness 6mm, perpendicular rib are that [10#, back cord is for [12#, often covers steel form point 2 and save, and often saving height is
2.25m.The symmetrical placement layer by layer of the concrete, per layer pours thickness for 30cm, and vibrating spear moving interval is less than vibrating spear work
The distance of 50-100mm is kept with 1.5 times of radius and with template, lower-layer concrete 50-100mm is inserted, concreting is finished
Curing period, was no less than 7 days afterwards.
The twin shaft pier and middle binder truss move integrally system and its twin shaft pier for completing and middle binder truss entirety
Mobile construction method is applied to the version of more than 40 meters of two-columned pier middle setting straining beam, pier shaft for uiform section or
Variable cross-section.
The present invention is provided with jackscrew fixing device in the upper and lower main rib of truss, and correspondence jackscrew position is also provided with template
Jackscrew fixing device, jackscrew are provided with two-layer, lead to the jackscrew fixing device that spanner is twisted on truss main rib, come adjusting template and purlin
The spacing of frame, the template of dismounting is disposed on assistance platform, is lifted using jack, template is solid with truss by jackscrew
It is fixed, jackscrew is adjusted, template assemblies is carried out, is turned over liter successively.Transverse truss and the truss platform detachable connection of inner side, construct to
Middle binder position, during standing is carried out on assistance platform, binder supporting platform is set up, and carries out pier construction by overmolded
With twin shaft pier, middle binder synchronous construction, it is ensured that concrete quality, construction is moved by truss and accelerates project progress, safety
It is again convenient, it is without the need for large lifting equipment, cost-effective.
The present invention technological principle be：Traditional sliding formwork, over-form construction technique are combined, and truss are improved,
Moved using truss, carry out template and turn over liter.Truss platform is mainly to provide operating platform, the assistance platform arranged under truss platform
Dismantle for template and polish and construct.On truss, all loads pass to the jack on support bar, template profit by hoisting frame
Fixed with truss with leading screw, pier body formwork turns over liter successively, circulation construction, when constructing to middle binder position, removes inner side two horizontal
To truss, directly binder support system is set up on assistance platform, constructed with pier stud simultaneously.
Rubbing, damage of the slding form operation to concrete surface are present invention, avoiding, concrete quality is improve.Template and purlin
Frame is fixed, and truss is lifted, form removal repeats operation with die-filling, is circulated successively, until pier top, this technological operation simplicity can safety
Rapidly operation.Pier stud and middle binder synchronous construction, and traditional floor scaffolding and bracing frame are not needed in constructing, save
Substantial amounts of non-structural material, easy construction, reliable in quality.Whole work progress, need not be thrown as power-equipment using jack
Enter large lifting equipment, cost-effective, process operability is strong, economical rationality.Construction land tenure is less, and job site is clean and tidy, applies
Work process has fewer environmental impacts.
Present invention achieves bridge pier is synchronous with middle binder, rapid construction, Bridge Construction speed is accelerated, while ensureing
The quality of pier shaft concrete.The safety of construction is ensure that, construction period is shortened, construction land tenure is saved, is reduced to ring
Border, the impact of traffic, reduce the impact to local resident's production, life, realize good economic benefit and social benefit,
Designed, the consistent favorable comment of management and construction unit.The present invention had both met quality, safety and environmental protection requirement, greatlyd save work
Phase, in turn ensure that pier stud node construction progress, it is ensured that high-quality, high standard, the complete cost engineering in fast progress ground, have wide pushing away
Wide application prospect.
Description of the drawings
Fig. 1 is present invention process flow chart；Fig. 2 is truss side schematic view；Fig. 3 is truss elevational schematic view；Fig. 4 is purlin
Frame floor map；Fig. 5 is single-column pier truss floor map.
In figure：1- truss platforms；1.1- transverse truss；1.2- longitudiual truss；A- girders；B- diagonal ribs；2- hoisting frames；2.1-
Hoisting frame floor；3- assistance platforms；4- support bars；5- jackscrews；6- template systems；7-5T guide chains；8- is to pull bar；9- screw-thread steels.
Specific embodiment
Certain city belt freeway In The Southeast Section B2-1 work area, route total length 4.29km is completely two-way six-lane, bridge 6
Seat, 2.32km altogether, using the version that straining beam is arranged between two-columned pier, pier stud amounts to 209 to pier stud, binder
223 are amounted to, pier stud there are 50 more than 40 meters, cross-sectional shape is variable cross-section solid pier or Thin-wall Hollow Pier.The engineering 2014
Year September goes into operation, and is all completed to the entity project of in October, 2016.
The duration of a project is tight, and quality, environmental requirement are high, dangerous larger.By to pier shaft and middle binder version, apply
Work operation is furtherd investigate, and summary forms twin shaft pier and middle binder truss moves integrally construction method, has both met quality, safety
Environmental requirement, greatlys save the duration, in turn ensure that pier stud node construction progress, it is ensured that high-quality, high standard, fast progress ground
Complete cost engineering, has wide popularizing application prospect.
Twin shaft pier and middle binder truss move integrally system, including truss platform 1, hoisting frame 2, assistance platform 3, support bar
4th, hydraulic system and template system 6,
Described truss platform 1 includes transverse truss 1.1 and longitudiual truss 1.2, and the transverse truss of inner side is removable with truss platform 1
Formula connection is unloaded, 1 upper and lower opening of truss platform arranges two-layer jackscrew 5, and the upper and lower main rib correspondence jackscrew position of truss arranges jackscrew and fixes dress
Put, truss upper surface is covered with plank, peripheral solder has guard rail, under truss platform, connect assistance platform 3, truss platform 1 is
Highly 180 ㎝, width are 100 ㎝；The girder a of truss platform and main rib adopt ∠ 80 × 10, diagonal rib b to adopt ∠ 63 × 10；For
Adjustment, reinforcing template perpendicularity, truss platform upper and lower opening arrange two-layer diameter 32mm jackscrew 5；Truss Main Function is to provide
Operating platform, and support is provided for reinforcing template, the plank of truss upper surface laying is 50mm, a height of 150 ㎝ in perimeter defense hurdle；
In work progress, assistance platform be for form removal, cleaning template, brush releasing agent, curing concrete construction operation platform.It is auxiliary
3 truss of platform is helped using [12#, surrounding are horizontally disposed with one 12 screw-thread steel 9 of Φ every 0.5 meter, and bolt is all used in all junctions
Connection, peripheral hardware guardrail are closed with safety net.
Described hoisting frame 2 is connected as entirety with truss platform 1, and hoisting frame 2 is between whole operation platform and concrete
Contact construction, be supported on support bar 4 by the jack on its crossbeam, whole load is passed to by hoisting frame
Support bar 4；2 floor of hoisting frame adopts [20#b.
Described support bar 4 is arranged at four angles of pier stud, and the lower end of support bar 4 is embedded in concrete, and upper end passes through hydraulic pressure
The through-core hole of jack, bears whole truss load.From 10t climb jack while, from external diameter 48mm, wall thickness
The scaffold tubes of 3.5mm are used as support bar.
The hydraulic system is by hydraulic control panel, hydraulic jack, oil pipe, separator, needle-like valve and other adnexa groups
Into.Pipeline is had to check for before assembling whether unobstructed, it is pressure whether to meet the requirements, the phenomenons such as oil leak are whether there is, if there is such phenomenon palpus
Exclude in time.
On the template system 6, correspondence jackscrew position is also provided with jackscrew fixing device；The template system is by large scale steel mould
Constitute with pull bar, leading screw holds out against reinforces punching block with split bolt；Punching block is rod-pulling type punching block, steel die thickness 6mm, and perpendicular rib is
[10#, back cord is for [12#, often covers 2 section of steel form point, and often section height is 2.25m.The upper and lower main rib of the truss and template system
The jackscrew fixing device of upper setting is that conventional stud cap fixes jackscrew.
Its twin shaft pier for completing and middle binder truss move integrally construction method, and step is as follows：
1）, truss it is assembled：Position of the support bar in pier stud is determined before assembled, with high-grade concrete pre-embedded steel slab as base
Plinth, then horizontal, longitudiual truss is installed so as to a truss structural is constituted, while platform will be ensured in same horizontal plane
On；Truss platform is connected firmly with hoisting frame, and hoisting frame is connected firmly with longitudiual truss, jack, and post upper is passed through and carried
Frame, the through-core hole of hydraulic jack are risen, work pressure test must be done with pre-embedded steel slab firm welding, jack and oil circuit assembling, really
Protect jack intact, should be vertical after installation, and keep cleaning.After truss assembly, once tried to slide, checked the entirety of truss
The reliability of stability and hydraulic test.
2）, steel bar meter and installation：All steel must have product certificate, can after field investigation and sampling retrial is qualified
Use, its mechanical property, standard should meet design and code requirement.Dabbing process is carried out at pier shaft split joint, concrete is dug out new
Fresh face, will dig out broken quarrel and clean out.Reinforcing bar is connected using straight screw sleeve in reinforcement yard's concentrated processing, pier stud cage bar,
Stirrup colligation is carried out again, and pier stud cage bar connects height once using 4.5m.Cover to reinforcement is controlled：Mortar pad is adopted between reinforcing bar and template
Block, cushion block with reinforcing bar colligation firmly, and should mutually be staggered.When pier stud is constructed to middle binder position, while installing pier stud and middle system
Beam steel.
3）, model sheetinstallat and reinforcing：After the completion of first and second section pier stud concreting, second section Pier Formwork is motionless, tears open
Except first segment Pier Formwork, in assistance platform processing template, jack is lifted, and template is promoted to Section of three pier stud using jack
In template position, template is fixed with truss with jackscrew, by tightening nuts adjusting template and truss space, carry out template assemblies
And this section Pier Formwork is coupled with second section Pier Formwork, errorless after-pouring concrete is checked using total station survey；Coagulation
Soil reaches, and is promoted to Section four Pier Formwork position, successively form removal, turn over to rise and stand
Mould, template spelling, casting concrete, cycle operation, during to middle binder position, remove inner side transverse truss, and operator are auxiliary
Help, while binder and Pier Formwork in installing, errorless after-pouring concrete is checked in measurement, mixed
Solidifying soil removes support platform and template after reaching strength of mould stripping, installs inner side transverse truss, installs pier stud reinforcing bar, template, pour
Concrete is circulated successively, until pier top；
Before model sheetinstallat, it is necessary to which polishing is clean, brush reliable releasing agent is conscientious rigorous during template assembly, carefully examines after assembly
Look into, it is ensured that size is accurate, seam is tight, template holds out against the method reinforcing with split bolt using leading screw.After model sheetinstallat is finished,
Its elevation of top surface, each spot size, node contacts and vertically and horizontally stability are checked, are checked and qualified concrete are poured into a mould Jing after signing and recognize.
3）, concreting and maintenance：Concrete adopts central mix, concrete delivery truck transport.Strictly control in mixing and stirring
Measuring raw materials processed, and on-site measurement is carried out to concrete slump.Pier stud hangs hopper using truck crane and pours, concreting
Symmetrical layering is carried out, and per layer pours thickness 30cm, 1.5 times and and mould of the vibrating spear moving interval less than vibrating spear operating radius
Plate should keep the distance of 50-100mm, insert lower-layer concrete 50-100mm, and everywhere is vibrated after finishing, and failure of oscillation is not smash and blown slowly
Propose vibrating spear；Vibrating spear collision slab, reinforcing bar and other built-in fittings should be avoided.To each position of vibrating, it is necessary to vibrate to this
Position concrete compaction.When reaching closely knit standard, concrete stops sinking, and bubble of no longer emerging, surface are presented smooth bleeding.It is mixed
Solidifying soil is poured after finishing, and is covered with geotextiles or Polypropylence Sheet, and the watering maintenance immediately after concrete final set, and curing period is no less than
7 days.
Technological principle is：Traditional sliding formwork, over-form construction technique are combined, and truss is improved, using truss
It is mobile, carry out template and turn over liter.Truss platform is mainly to provide operating platform, and the assistance platform arranged under truss platform is used for template
Dismounting and construction of polishing.On truss, all loads pass to the jack on support bar by hoisting frame, template using leading screw with
Truss is fixed, and pier body formwork turns over liter successively, and circulation construction, when constructing to middle binder position, removes two transverse truss in inner side, directly
It is connected on assistance platform and sets up binder support system, is constructed with pier stud simultaneously.
Quality control：Truss structural design, construction quality standard are performed《Code for design of steel structures》GB50017-2003、
《Bridge steel plate structure》 GB714-2000、《Code for acceptance of construction quality of steel structures》 GB50205-2001、《Building iron is tied
Structure solder technology code》 JGJ81—2002、《Weldquality rule of management》 JB3223-83.The materials such as reinforcing bar, cement are necessary
The test report and acceptable quality of dispatching from the factory for having producer is proved, is checked in batches using front elder generation on request.The ground such as sand, stone square bar
Material, can be used by test chamber after the assay was approved per material of marching into the arena is criticized.In strict accordance with《Highway bridge and culvert construction technique normalizing》's
Regulation carries out reinforcing bar, template, concrete work.Reinforcing bar stack should accomplish on underlay cover, using it is front should by surface it is greasy, paint
Skin, rust are removed totally, in order to avoid mechanical damage or the corrosion and destruction that makes moist.Coordinate method of laying out is carried out to every section pier shaft using total powerstation
Control pier shaft plane stand-off error.Using steel ruler measurement module diagonal, inspection template size is checked, bound in binder and pier stud
During construction, using all-station instrument accurate measurement, elevation is determined.In construction, set up operator's self-inspection, teams and groups mutually examine, operation hand over
Connect check and work before check, check in work and work after check and branch of itemizing checks, makes regular check on inside with random inspection
Inspection system.Concreting in lifts, vibrates, and must not leak and smash, and when vibrating, vibrating head should not contact template, reinforcing bar, built-in fitting.Pour
Concrete after note must health preserving in time.The intensity and rigidity of template answers compliant to require, should be smooth, smooth on the inside of template,
Rear pattern plate absolute altitude, inside dimensions, axial location, the adjacent panels discrepancy in elevation and surface smoothness tolerance are installed to press《Highway bridge and culvert is applied
Work technical specification》Checked.It was found that when having more than the possibility of tolerance deformation values, should correct at any time.
Reinforcement installation quality standard is shown in Table 1, and pier stud construction quality standard is shown in Table 2.
Table 1：
Table 2
Safety measure：Workmen should conscientiously carry out the every regulation in safety production rules, all workmen's constructions
Before must carry out safety education training, by passing the examination after can start to work.Strict implement system of responsibility in safe production, clearly
The responsibility of personnel at different levels, does a good job of it the safety in production of engineering.
On the outside of the security guardrail of truss platform, assistance platform, surrounding hangs safety net, and scaffold board laying is wanted fixation, applied
The upper and lower employing cat ladder of workman person, cat ladder install firm, and surrounding is closed with safety net, protect workmen's safety, construction site
Safety signses are set.During double-deck operation, levels should be closely connected, and the moment notes the personal safety of lower floor operating personnel,
Work high above the ground personnel fasten seat belts, band tool kit, forbid to throw out without care, leave about instrument, in order to avoid injure the person of lower section operating personnel
Safety, prevents falling object from high altitude.
All electric equipments for using have been intended to reliable ground, and set special messenger and be responsible for, should be periodically and irregularly to construction machine
The situations such as abrasion, connection and the state deviation of tool equipment are checked, in time plant equipment are carried out maintaining, keeped in repair, especially right
Lifting means emphasis carries out maintenance repair, forbids plant equipment " in spite of illness " to run, and running check oil pipe line, jack jacking
It is whether locked afterwards, to cover in time after end-of-job, close power supply.Formulate job site safety measures for power consumption, installation, maintenance or
Remove temporary electricity facility must have card professional electrician carry out, it is necessary to adhere to one lock one of a machine leak electricity and come off duty power-off locking original
Then.
Before lifting operation must close inspection crane gear reliability and safety, and carry out examination and hang, hoisting sling is fixed
Phase checks to be changed, and lifting operation should assign special messenger to assume unified command of, and the safety operation for playing heavy industry GPRS operation for being responsible for lifting will
Ask, other staff there will be clarification in certain roles, forbid to operate against regulations.
On platform, windrow uniformly will be placed, once operating platform run-off the straight, can make support rod bending cause to lift difficulty.
If supporting rod bending less, which can be corrected by welding supporting member etc., if bending is larger, bending section should be changed
Point.Periodically the jack discrepancy in elevation is observed with total powerstation, the jack discrepancy in elevation in same level can not be more than 2cm, adjacent very heavy
The discrepancy in elevation on top can not be more than 1cm.
Framework wants running check with platform, template bolt, must not have loosening phenomenon, unnecessary article must not be put on platform.Pour
When building concrete, all staff on platform will double to take care, and dyke is wounded by suspension bucket.The area that carries on construction work at night must match somebody with somebody
Enough lighting installations are prepared enough, each construction operation point that carries on construction work at night is equipped with full-time safe operator on duty, and illuminalive power-supply safety is by duty
Electrician is responsible for.During work high above the ground, windage is more than 6 grades（Containing 6 grades）During above strong wind, construction should stop, and building site is carried out
Safety inspection.Rainy weather is also noted that lightning protection, if there are the vile weathers such as thunderstorm snow, construction should stop.
Environmental practice：Strengthen construction management, strengthen environmental consciousness.Construction machinery prevents oil leak, preferentially from advanced ring
Protect machinery.The unprocessed just directly discharge of oily water produced during forbidding machine operation, or greasy dirt during maintenance construction machinery
Water is directly discharged.Construction period, for have in water precipitate and sludge need discharged Jing after precipitation process again.Note maintenance construction
Machinery, strengthens the lubrication of construction machinery each several part, makes machinery maintain lowest noise level, vehicle that oil must not be increased when villages and small towns
Door is quickly through answering pre-decelerating to slow transit through.From the low construction equipment of functional, noise, and strengthen the scene of equipment
Maintenance and maintenance, it is ensured that equipment is constantly in normal operating condition.When fine, job site, sidewalk are sprinkled water,
Prevent from stirring up a cloud of dust, pollute surrounding.High pier construction garbage mainly has Sealing formboard with sponge double faced adhesive tape and pours coagulation
The concrete wasted when native, carries out the two-sided glue reclaim of sponge and concrete cleaning, forbids burning waste at the construction field (site).Scene
Placing of material arranges reasonable, the existing green vegetation outside highway safety land used scope, and earth's surface is removed it must be particularly noted that to the greatest extent most
The natural vegetation outside cut-back region scope may be protected greatly.During transhipment truss, the engineering material being scattered on the way is cleared up in time, it is to avoid
Pollution environment.
Performance analysis：Belt freeway In The Southeast Section B2-1 work areas, construction bridges pier stud have 50 more than 40 meters, apply
6 months work durations, using the method for the invention, truss is make use of to be lifted, so as to reduce the utilization rate of large lifting equipment,
25t truck crane 2 can be rented less monthly, every monthly rent 2.8 ten thousand, total have saved 33.6 ten thousand yuan.The safety of construction is ensure that, is contracted
Short construction period, saves construction land tenure, reduces the impact to environment, traffic, reduces to local resident's production, life
Impact, obtain good reputation, realize good economic benefit and social benefit, designed, management and built single
The consistent favorable comment of position.
Claims (7)
1. a kind of twin shaft pier and middle binder truss move integrally system, it is characterised in that：Including truss platform（1）, hoisting frame
（2）, assistance platform（3）, support bar（4）, hydraulic system and template system（6）,
Described truss platform（1）Including transverse truss（1.1）And longitudiual truss（1.2）, transverse truss and the truss of inner side are put down
Platform（1）Detachable connection, truss platform（1）Upper and lower opening arranges two-layer jackscrew（5）, the upper and lower main rib correspondence jackscrew position of truss sets
Top set wire fixing device, truss upper surface are covered with plank, and peripheral solder has guard rail, connects assistance platform under truss platform
（3）,
Described hoisting frame（2）With truss platform（1）Entirety is connected as, by the very heavy top support on hoisting frame crossbeam
In support bar（4）On,
Described support bar（4）It is arranged at four angles of pier stud, support bar（4）Lower end be embedded in concrete, upper end pass through hydraulic pressure
The through-core hole of jack；
The template system（6）Upper correspondence jackscrew position is also provided with jackscrew fixing device；
Its twin shaft pier for completing and middle binder truss move integrally construction method, and step is as follows：
1）, truss it is assembled：Position of the support bar in pier stud is determined before assembled, with high-grade concrete pre-embedded steel slab as base
Plinth, then horizontal, longitudiual truss is installed so as to a truss structural is constituted, while platform will be ensured in same horizontal plane
On；Truss platform is connected firmly with hoisting frame, and hoisting frame is connected firmly with longitudiual truss, jack, and post upper is passed through and carried
Frame, the through-core hole of hydraulic jack are risen, with pre-embedded steel slab firm welding；
2）, model sheetinstallat and reinforcing：After the completion of first and second section pier stud concreting, second section Pier Formwork is motionless, removes the
One section Pier Formwork, in assistance platform processing template, jack is lifted, and template is promoted to Section of three Pier Formwork using jack
On position, template is fixed with truss with jackscrew, by tightening nuts adjusting template and truss space, carry out template assemblies and incite somebody to action
This section Pier Formwork is coupled with second section Pier Formwork, checks errorless after-pouring concrete using total station survey；Concrete reaches
To after strength of mould stripping remove second section Pier Formwork, be promoted to Section of four Pier Formwork position, successively form removal, turn over a liter formwork erection, mould
Plate spelling, casting concrete, cycle operation, during to middle binder position, remove inner side transverse truss, and operator are in assistance platform
On directly set up support platform, while install in binder and Pier Formwork, measurement check errorless after-pouring concrete, concrete reaches
Support platform and template are removed to after strength of mould stripping, inner side transverse truss is installed, pier stud reinforcing bar, template is installed, concrete is poured successively
Circulation, until pier top；
3）, concreting and maintenance：Concreting is carried out using symmetrical layering, after concreting is finished, uses geotextiles
Or Polypropylence Sheet is covered, and the watering maintenance immediately after concrete final set.
2. a kind of twin shaft pier according to claim 1 and middle binder truss move integrally system, it is characterised in that：The purlin
Body panel（1）Highly it is 180 ㎝, width is 100 ㎝；Truss platform（1）Girder（a）∠ 80 × 10, diagonal rib are adopted with main rib
（b）Using ∠ 63 × 10；The jackscrew（5）A diameter of 32mm；The plank is 50mm, a height of 150 ㎝ in perimeter defense hurdle；It is described
Assistance platform（3）Truss is for [12#, surrounding are horizontally disposed with one 12 screw-thread steel of Φ every 0.5 meter（9）, junction bolt connection,
Peripheral hardware guardrail, is closed with safety net.
3. a kind of twin shaft pier according to claim 1 and middle binder truss move integrally system, it is characterised in that：It is described to carry
Rise frame floor（2.1）For [20#b；The jack climbs jack for 10t, and support bar is external diameter 48mm, the foot of wall thickness 3.5mm
Handss pipe.
4. a kind of twin shaft pier according to claim 1 and middle binder truss move integrally system, it is characterised in that：The liquid
Pressure system is made up of hydraulic control panel, hydraulic jack, oil pipe, separator, needle-like valve and adnexa.
5. a kind of twin shaft pier according to claim 1 and middle binder truss move integrally system, it is characterised in that：The mould
Plate system is made up of large scale steel mould and pull bar, and leading screw holds out against reinforces punching block with split bolt；Punching block be rod-pulling type punching block, punching block face
Thickness of slab 6mm, erects rib for [10#, back cord is for [12#, often covers 2 section of steel form point, and often section height is 2.25m.
6. a kind of twin shaft pier according to claim 1 and middle binder truss move integrally system, it is characterised in that：It is described mixed
Solidifying native symmetrical placement layer by layer, per layer pours thickness for 30cm, 1.5 times less than vibrating spear operating radius of vibrating spear moving interval
And the distance with template holding 50-100mm, lower-layer concrete 50-100mm is inserted, it is many that concreting finishes rear curing period
In 7 days.
7. a kind of twin shaft pier according to claim 1 and middle binder truss move integrally system, it is characterised in that：It is described double
Stub and middle binder truss move integrally system and its twin shaft pier for completing and middle binder truss move integrally construction method should
For the version of more than 40 meters of two-columned pier middle setting straining beam, pier shaft is uiform section or variable cross-section.
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| CN201611226934.2A CN106592438B (en) | 2016-12-27 | 2016-12-27 | Twin shaft pier and middle binder truss move integrally construction method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109098093A (en) * | 2018-09-27 | 2018-12-28 | 贵州卓良模板有限公司 | A kind of twin pier casting is overhang with creeping formwork |
| CN113842571A (en) * | 2021-11-03 | 2021-12-28 | 中交一公局重庆万州高速公路有限公司 | Safety belt supporting device and safety belt hanging method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0633405A (en) * | 1992-07-17 | 1994-02-08 | Tokyu Constr Co Ltd | Method for constructing railroad elevated bridge |
| CN101487232A (en) * | 2009-01-05 | 2009-07-22 | 广州市市政集团有限公司 | Steel box girder assembling construction method |
| CN101660291A (en) * | 2009-07-21 | 2010-03-03 | 中交第二公路勘察设计研究院有限公司 | Open-web continuous rigid frame bridge structure and method for casting and constructing inclined hanging basket |
| CN103161126A (en) * | 2013-04-11 | 2013-06-19 | 新疆北新路桥集团股份有限公司 | Road bridge variable section hollow high pier slip-form construction method |
| CN103452052A (en) * | 2013-08-26 | 2013-12-18 | 中铁六局集团有限公司 | Movable mold hanging equipment for closing swivel bridges and closure section construction method |
| CN104532735A (en) * | 2014-12-25 | 2015-04-22 | 浙江兴土桥梁专用装备制造有限公司 | Assembly type steel bridge and building method thereof |
| CN105484157A (en) * | 2015-11-19 | 2016-04-13 | 宁波交通工程建设集团有限公司 | Positioning device and construction method of capping beam of prefabricated bridge |
-
2016
- 2016-12-27 CN CN201611226934.2A patent/CN106592438B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0633405A (en) * | 1992-07-17 | 1994-02-08 | Tokyu Constr Co Ltd | Method for constructing railroad elevated bridge |
| CN101487232A (en) * | 2009-01-05 | 2009-07-22 | 广州市市政集团有限公司 | Steel box girder assembling construction method |
| CN101660291A (en) * | 2009-07-21 | 2010-03-03 | 中交第二公路勘察设计研究院有限公司 | Open-web continuous rigid frame bridge structure and method for casting and constructing inclined hanging basket |
| CN103161126A (en) * | 2013-04-11 | 2013-06-19 | 新疆北新路桥集团股份有限公司 | Road bridge variable section hollow high pier slip-form construction method |
| CN103452052A (en) * | 2013-08-26 | 2013-12-18 | 中铁六局集团有限公司 | Movable mold hanging equipment for closing swivel bridges and closure section construction method |
| CN104532735A (en) * | 2014-12-25 | 2015-04-22 | 浙江兴土桥梁专用装备制造有限公司 | Assembly type steel bridge and building method thereof |
| CN105484157A (en) * | 2015-11-19 | 2016-04-13 | 宁波交通工程建设集团有限公司 | Positioning device and construction method of capping beam of prefabricated bridge |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109098093A (en) * | 2018-09-27 | 2018-12-28 | 贵州卓良模板有限公司 | A kind of twin pier casting is overhang with creeping formwork |
| CN113842571A (en) * | 2021-11-03 | 2021-12-28 | 中交一公局重庆万州高速公路有限公司 | Safety belt supporting device and safety belt hanging method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106592438B (en) | 2018-03-30 |
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Effective date of registration: 20200206 Address after: 100036 No. 2, Haidian District, Beijing, Wanshou Road Co-patentee after: Changsha Railway Group Company Limited Luqiao branch Patentee after: The Sixth Engineering Bureau Group Co., Ltd., China Railway Address before: 100036 No. 2, Haidian District, Beijing, Wanshou Road Co-patentee before: CHINA RAILWAY SIXTH GROUP ROAD AND BRIDGE CONSTRUCTION CO., LTD. Patentee before: The Sixth Engineering Bureau Group Co., Ltd., China Railway |