CN108818919A - Precast T-Beam reinforcing bar is bound in advance and the construction method of integral installation - Google Patents
Precast T-Beam reinforcing bar is bound in advance and the construction method of integral installation Download PDFInfo
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- CN108818919A CN108818919A CN201810683760.5A CN201810683760A CN108818919A CN 108818919 A CN108818919 A CN 108818919A CN 201810683760 A CN201810683760 A CN 201810683760A CN 108818919 A CN108818919 A CN 108818919A
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- steel
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- reinforcing bar
- steel reinforcement
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
- B28B23/022—Means for inserting reinforcing members into the mould or for supporting them in the mould
Abstract
It binds and the construction method of integral installation, includes the following steps in advance the invention discloses Precast T-Beam reinforcing bar：(1) preparation of construction；(2) place hardening and reinforcement foundation are pre-buried；(3) reinforcing bar positioning die carrier makes；(4) processing of precast beam framework of steel reinforcement and installation；(5) special reinforced skeleton hanger is made by oneself；(6) framework of steel reinforcement lifting and positioning；(7) the die-filling of T beam, concreting and maintenance：After lifting is in place, positioning, assembled formwork, binding roof steel bar, casting concrete molding and the later period health of framework of steel reinforcement are carried out according to traditional prestressed T beam working procedure.The features such as present invention is big, framework of steel reinforcement stability is poor for Precast T-Beam section depth-width ratio devises special reinforced pre- binding locating rack, realizes the whole pre- binding of Precast T-Beam reinforcing bar；The characteristics of big for Precast T-Beam longitudinal direction length-width ratio, easy distortion, T beam reinforcement cages special hoisting bar is devised, solves the problems, such as the reinforcing bar integral hoisting bound in advance to prefabricated ground tire.
Description
【Technical field】
The invention belongs to the construction field of reinforcing bar, in particular to Precast T-Beam reinforcing bar is bound and the construction party of integral installation in advance
Method.
【Background technique】
With the development that deepens constantly of highway in China building cause, construction technology, the technology of highway engineering are gradually improved, portion
Divide precast beam to enter method constructing and overhanging model using reinforcing bar overall processing and also realizes that the premise using the technique is mould substantially in professional precasting yard
Plate mechanization degree is high, remarkable benefit when the prefabricated scale of construction is huge；Conventional highway scale of precast yard is larger, according to this work
Skill economy is not good enough.In the reason of restricting conventional expressway precasting yard construction speed, reinforcing bar binding and template construction step lasts
Time is long and to interfere with each other be one of reason.By exploration in recent years, small box girder, hollow beam cross-section depth-width ratio are smaller prefabricated
Beam steel is bound in advance, integral installation problem is broken through, and accelerates the upper production efficiency of precasting yard, only the reinforcing bar of T beam bind in advance,
Whole problem is not solved effectively.
【Summary of the invention】
To solve the above problems, the features such as present invention is big, framework of steel reinforcement stability is poor for Precast T-Beam section depth-width ratio,
The special reinforced pre- binding locating rack for T beam steel layout feature is devised, realizes the whole pre- binding of Precast T-Beam reinforcing bar；Needle
The characteristics of big to Precast T-Beam longitudinal direction length-width ratio, easy distortion, T beam reinforcement cages special hoisting bar is devised, solves the steel bound in advance
Problem of the muscle integral hoisting to prefabricated ground tire.
To solve the above problems, the technical scheme adopted by the invention is that：Precast T-Beam reinforcing bar is in advance bound and integral installation
Construction method includes the following steps：
(1) preparation of construction：According to reinforcing bar positioning die carrier principle identical with beam slab prefabricated ground tire, make reinforcing bar positioning mould pallet
Seat is in the same direction with beam slab prefabricated ground tire, and within the scope of lifting door frame Liftable, makes the beam slab Prefabricated integral reinforcing bar processed
Frame can disposably be completed to lift by the lifting door frame of beam slab precasting yard, translate, enter the processes such as mould；
(2) place hardening and reinforcement foundation are pre-buried：With C30 concrete hardening place 5d, hardening with a thickness of 10cm, then
The accurate setting-out in hardened place according to the size of T beam framework reinforcing bar and process support frame, by 1 section/rice spacing hard
Change the spiral that pre-buried diameter on place is 12mm；
(3) reinforcing bar positioning die carrier makes：Including successively after the production of steel bar positioning frame, horizontal positioning device installation
School team and the reinforcing of installation and reinforcing bar positioning die carrier with vertical stirrup positioning device；
The production of steel bar positioning frame：Using 5# angle steel as major ingredient, being welded into has phase similar shape by the several of bottom edge of right-angle side
The right angled triangle reinforcing bar mould bases of shape；Mould bases height determines that the every 1.5m of mould bases is determined together according to T depth of beam, adjacent mould bases it
Between longitudinal direction use the welding of 5# angle steel to increase stability, form steel bar positioning frame；
The installation of horizontal positioning device：According to the spacing of design drawing web horizontal bar on reinforcing bar mould bases uniform welding 12
A diameter is the steel pipe of 16mm, then is processed into combed horizontal location frame with the round steel that diameter is 16mm, puts locating rack into steel pipe
Middle fixation, thus controlled level muscle spacing；After the installation is completed and before being lifted, round steel is slowly extracted out in framework of steel reinforcement；
The installation of vertical stirrup positioning device：Along bridge to 2 elongated 5# angle steel of welding on reinforcing bar mould framing plate, by stirrup
Longitudinal design spacing cuts notch, to fixed bottom plate stirrup position；Two sides according to design stirrup the elongated 5# angle steel of height,
It is connected along bridge to reinforcing bar mould bases, welds 1 5# angle steel by design bar spacing on angle iron position and cut notch, fixed abdomen
Plate stirrup position；
The check and correction and reinforcing of reinforcing bar positioning die carrier：After each positioning device assembly is good, entire mould bases is proofreaded and added
Gu carrying out reinforcement installation construction after passed examination；
(4) processing of precast beam framework of steel reinforcement and installation：Reinforcing bar try using numerical-control bending machine curved, determines that numerical control is curved
Bent machine running parameter makes Length of Reinforcement Before Being Incised adjusted meet design requirement, and reinforcing bar is installed one by one in order, and tight
Lattice carry out reinforcement installation, binding according to the position that steel bar positioning frame indicates；Then according to design position prestressed pipeline, shape
Meet the T beam reinforcement cages of design requirement at a bellows and bottom web reinforcement, then arrange protective layer cushion block by plum blossom-shaped,
The quantity of control bottom plate and web reinforcement protective layer cushion block, which reaches, is uniformly distributed 4 requirements in every square metre, while guaranteeing to pad
The fastness of block and framework of steel reinforcement；
(5) special reinforced skeleton hanger is made by oneself：The truss-like of big rigidity is welded into using I25a work steel and D25 spiral
Framework of steel reinforcement hanger；
(6) framework of steel reinforcement lifting and positioning：
Before framework of steel reinforcement lifting, framework of steel reinforcement whereabouts normal line is carried out on pedestal, and determines special messenger commander, to ensure steel
Tendons skeleton it is accurate in place；
After the completion of web reinforcement skeleton binding in bottom is finished and reinforced, starts gantry crane, wirerope is put down, respectively by hanger
Both ends are linked together by turnbuckle and wirerope with hanger, it is ensured that hanger is in horizontality；
It starts gantry crane hanger is hung to right above framework of steel reinforcement；
By suspension hook button such as corresponding position；For the deformation for controlling bottom web reinforcement skeleton, longitudinal direction is penetrated at the top of web reinforcement
Reinforcing bar；
Gantry crane lifts by crane upwards slightly, tightens wirerope, adjusts turnbuckle length, makes each suspension centre uniform force, pass through
Concentrated force can be dispersed in steel pipe, and power is reached on entire framework of steel reinforcement, after confirming that each suspension centre connection is solid, slowly starts gantry crane master
Hook is sling upwards, hangs ground 50cm or so, stands 15min, observes the deformation of hanger and framework of steel reinforcement；
It is smaller in confirmation hanger and framework of steel reinforcement deformation, after rigidity meets expected effect, it is again started up gantry crane main hook
It slings upwards, until framework of steel reinforcement is greater than 2m, lock height apart from ground level；
Starting gantry crane moves forward along track, and travel speed controls within 6m/min, during traveling,
The barrier on track is cleared up, and carries out protection, prevents pedestrian, vehicle etc. from invading track clearance, encounters abnormal conditions, it should be timely
Notify commander；
When in gantry hanging to concreting pedestal, cart halts, and framework of steel reinforcement is slowly put down；
During framework of steel reinforcement is slowly put down, by pico- movement all around, by framework of steel reinforcement exactitude position, fall
Under, remove the suspension centre on framework of steel reinforcement；
(7) the die-filling of T beam, concreting and maintenance：After lifting is in place, according to traditional prestressed T beam working procedure into
Positioning, assembled formwork, binding roof steel bar, casting concrete molding and the later period health of row framework of steel reinforcement.
In the present invention, as further explanation, truss structure is flat in truss-like framework of steel reinforcement hanger described in step (5)
Face size and beam body framework of steel reinforcement top surface geometric identity make main load-bearing using I25a work steel, and both sides use longitudinal pitch
It is welded into triangular structure for the D25 spiral of 50cm, on longitudinal screw reinforcing bar, a10 is used in setting at every side spacing 100cm
Round steel production one, suspension hook, and so on be evenly arranged, to be connect with bottom web reinforcement skeleton.
The invention has the advantages that：
1. the present invention mentions a little for T beam section depth-width ratio is small, stability is poor, the wide abdomen of bottom plate is narrow etc., design it is a set of dedicated
Steel bar positioning frame, reinforcing bar accurate positioning, it is convenient to bind, and construction efficiency is high.
2. the present invention using the truss-like slinging beam of big rigidity, is designed between crossbeam and framework of steel reinforcement using multiple spot suspension hook,
Overcome the problems, such as that T beam longitudinal direction length-width ratio is big, lifting easily distorts, it can be achieved that framework of steel reinforcement is from positioning binding moulding bed to prefabricated moulding bed
It fast moves.
3. the present invention enters mould using the skeleton integral hoisting of reinforcing bar positioning die carrier screwing steel bars, reduce in framework of steel reinforcement installation
Pollution to beam slab bed die improves the presentation quality of beam slab prefabricated panel.
4. the pre- binding of framework of steel reinforcement can be realized without increasing new equipment on the basis of the configuration of former precasting yard in the present invention
With integral installation, shortens the T beam prefabricated period, improve prefabricated efficiency.
5. the installation of framework of steel reinforcement does not need to occupy ground tire in the present invention, reduce the interference for being adjacent to and working between tire,
Cross-operation bring safety problem between Adjacent Working Face is also avoided, it is synchronous with concreting to realize reinforcement installation
Operation.
6. the present invention carries out the blanking of reinforcing bar using numerical-control bending equipment, the accuracy of Steel Reinforcing Bar Material is improved, using fixed
Position mould bases carries out reinforcement installation, the precision of reinforcement installation is improved, so that the cutting stock precision of reinforcing bar and installation accuracy phase
Match, further improves the precision of framework of steel reinforcement processing.
【Detailed description of the invention】
Fig. 1 is that Precast T-Beam of embodiment of the present invention reinforcing bar is bound and the process flow chart of the construction method of integral installation in advance.
【Specific embodiment】
Embodiment 1：
Precast T-Beam reinforcing bar is bound in advance and the construction method of integral installation, includes the following steps：
(1) preparation of construction：According to reinforcing bar positioning die carrier principle identical with beam slab prefabricated ground tire, make reinforcing bar positioning mould pallet
Seat is in the same direction with beam slab prefabricated ground tire, and within the scope of lifting door frame Liftable, makes the beam slab Prefabricated integral reinforcing bar processed
Frame can disposably be completed to lift by the lifting door frame of beam slab precasting yard, translate, enter the processes such as mould；
(2) place hardening and reinforcement foundation are pre-buried：With C30 concrete hardening place 5d, hardening with a thickness of 10cm, then
The accurate setting-out in hardened place according to the size of T beam framework reinforcing bar and process support frame, by 1 section/rice spacing hard
Change the spiral that pre-buried diameter on place is 12mm；
(3) reinforcing bar positioning die carrier makes：Including successively after the production of steel bar positioning frame, horizontal positioning device installation
School team and the reinforcing of installation and reinforcing bar positioning die carrier with vertical stirrup positioning device；
The production of steel bar positioning frame：Using 5# angle steel as major ingredient, being welded into has phase similar shape by the several of bottom edge of right-angle side
The right angled triangle reinforcing bar mould bases of shape；Mould bases height determines that the every 1.5m of mould bases is determined together according to T depth of beam, adjacent mould bases it
Between longitudinal direction use the welding of 5# angle steel to increase stability, form steel bar positioning frame；
The installation of horizontal positioning device：According to the spacing of design drawing web horizontal bar on reinforcing bar mould bases uniform welding 12
A diameter is the steel pipe of 16mm, then is processed into combed horizontal location frame with the round steel that diameter is 16mm, puts locating rack into steel pipe
Middle fixation, thus controlled level muscle spacing；After the installation is completed and before being lifted, round steel is slowly extracted out in framework of steel reinforcement；
The installation of vertical stirrup positioning device：Along bridge to 2 elongated 5# angle steel of welding on reinforcing bar mould framing plate, by stirrup
Longitudinal design spacing cuts notch, to fixed bottom plate stirrup position；Two sides according to design stirrup the elongated 5# angle steel of height,
It is connected along bridge to reinforcing bar mould bases, welds 1 5# angle steel by design bar spacing on angle iron position and cut notch, fixed abdomen
Plate stirrup position；
The check and correction and reinforcing of reinforcing bar positioning die carrier：After each positioning device assembly is good, entire mould bases is proofreaded and added
Gu carrying out reinforcement installation construction after passed examination；
(4) processing of precast beam framework of steel reinforcement and installation：Reinforcing bar try using numerical-control bending machine curved, determines that numerical control is curved
Bent machine running parameter makes Length of Reinforcement Before Being Incised adjusted meet design requirement, and reinforcing bar is installed one by one in order, and tight
Lattice carry out reinforcement installation, binding according to the position that steel bar positioning frame indicates；Then according to design position prestressed pipeline, shape
Meet the T beam reinforcement cages of design requirement at a bellows and bottom web reinforcement, then arrange protective layer cushion block by plum blossom-shaped,
The quantity of control bottom plate and web reinforcement protective layer cushion block, which reaches, is uniformly distributed 4 requirements in every square metre, while guaranteeing to pad
The fastness of block and framework of steel reinforcement；
(5) special reinforced skeleton hanger is made by oneself：The truss-like of big rigidity is welded into using I25a work steel and D25 spiral
Framework of steel reinforcement hanger；
Truss structure planar dimension and beam body framework of steel reinforcement top surface geometric identity in truss-like framework of steel reinforcement hanger, benefit
Make main load-bearing with I25a work steel, both sides use longitudinal pitch to be welded into triangular structure for the D25 spiral of 50cm, vertical
To on spiral, at every side spacing 100cm setting with a10 round steel make one, suspension hook, and so on be evenly arranged, so as to
It is connect with bottom web reinforcement skeleton.
(6) framework of steel reinforcement lifting and positioning：
Before framework of steel reinforcement lifting, framework of steel reinforcement whereabouts normal line is carried out on pedestal, and determines special messenger commander, to ensure steel
Tendons skeleton it is accurate in place；
After the completion of web reinforcement skeleton binding in bottom is finished and reinforced, starts gantry crane, wirerope is put down, respectively by hanger
Both ends are linked together by turnbuckle and wirerope with hanger, it is ensured that hanger is in horizontality；
It starts gantry crane hanger is hung to right above framework of steel reinforcement；
By suspension hook button such as corresponding position；For the deformation for controlling bottom web reinforcement skeleton, longitudinal direction is penetrated at the top of web reinforcement
Reinforcing bar；
Gantry crane lifts by crane upwards slightly, tightens wirerope, adjusts turnbuckle length, makes each suspension centre uniform force, pass through
Concentrated force can be dispersed in steel pipe, and power is reached on entire framework of steel reinforcement, after confirming that each suspension centre connection is solid, slowly starts gantry crane master
Hook is sling upwards, hangs ground 50cm or so, stands 15min, observes the deformation of hanger and framework of steel reinforcement；
It is smaller in confirmation hanger and framework of steel reinforcement deformation, after rigidity meets expected effect, it is again started up gantry crane main hook
It slings upwards, until framework of steel reinforcement is greater than 2m, lock height apart from ground level；
Starting gantry crane moves forward along track, and travel speed controls within 6m/min, during traveling,
The barrier on track is cleared up, and carries out protection, prevents pedestrian, vehicle etc. from invading track clearance, encounters abnormal conditions, it should be timely
Notify commander；
When in gantry hanging to concreting pedestal, cart halts, and framework of steel reinforcement is slowly put down；
During framework of steel reinforcement is slowly put down, by pico- movement all around, by framework of steel reinforcement exactitude position, fall
Under, remove the suspension centre on framework of steel reinforcement；
(7) the die-filling of T beam, concreting and maintenance：After lifting is in place, according to traditional prestressed T beam working procedure into
Positioning, assembled formwork, binding roof steel bar, casting concrete molding and the later period health of row framework of steel reinforcement.
1. technical benefits
Reinforcing bar is carried out using reinforcing bar positioning die carrier and binds construction technology, quality and geometric dimension are guaranteed, and solve T
The key technology difficulty of beam framework reinforcement installation spacing low qualified, reenters mould using suspender integral hoisting, only need to be to reinforcing bar
Respective location be adjusted.Meanwhile hoisting process must assure that the rigidity and stability of framework of steel reinforcement entirety, Yi Jimo
The accuracy of plate assembly, this is in the construction quality requirement for virtually improving T beam.
2. economic benefit
Using Precast T-Beam reinforcement installation system, construction technology is simple, and worker installs that reinforcing bar is convenient, does not need taking repeatedly
And if dismounting falsework, the back works such as reduction site clearing greatly improve my project T beam prefabricated speed.Traditional handicraft
6 people, three days binding two panels T beam steels are needed, after carrying out new process, only need 5 people, three days binding two panels T beam steels.Traditional construction
Technique binds a piece of T beam expense：150 × 6 × 3/2=1350 member, expense after adopting new technology：150 × 5 × 3/2=1125 member,
Economic effect is obvious.Every beam shortens the use time of ground tire simultaneously, improves the service efficiency of ground tire, hence it is evident that shorten pre-
The fabrication cycle of beam processed.
Above description is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to this hair
Bright patent claim, it is all the present invention suggested by technical spirit under completed same changes or modifications change, should all belong to
In the covered the scope of the patents of the present invention.
Claims (2)
1. Precast T-Beam reinforcing bar is bound in advance and the construction method of integral installation, it is characterised in that：Include the following steps：
(1) preparation of construction：According to reinforcing bar positioning die carrier principle identical with beam slab prefabricated ground tire, make reinforcing bar positioning die carrier pedestal with
Beam slab prefabricated ground tire is in the same direction, and within the scope of lifting door frame Liftable, enables the beam slab Prefabricated integral framework of steel reinforcement processed
Enough disposably completes to lift, translate, enter the processes such as mould by the lifting door frame of beam slab precasting yard；
(2) place hardening and reinforcement foundation are pre-buried：With C30 concrete hardening place 5d, hardening with a thickness of 10cm, then according to
The size of T beam framework reinforcing bar and process support frame accurate setting-out in hardened place, by 1 section/rice spacing in hardening field
Pre-buried diameter is the spiral of 12mm on the ground；
(3) reinforcing bar positioning die carrier makes：Including successively after the production of steel bar positioning frame, the installation of horizontal positioning device and perpendicular
To the installation of stirrup positioning device and school team and the reinforcing of reinforcing bar positioning die carrier；
The production of steel bar positioning frame：Using 5# angle steel as major ingredient, it is welded into using right-angle side as the several with same shape of bottom edge
Right angled triangle reinforcing bar mould bases；Mould bases height determines that the every 1.5m of mould bases is determined together, between adjacent mould bases according to T depth of beam
It is longitudinal to use the welding of 5# angle steel to increase stability, form steel bar positioning frame；
The installation of horizontal positioning device：According to the spacing of design drawing web horizontal bar, uniform welding 12 is straight on reinforcing bar mould bases
Diameter is the steel pipe of 16mm, then is processed into combed horizontal location frame with the round steel that diameter is 16mm, locating rack is put into solid in steel pipe
It is fixed, thus controlled level muscle spacing；After the installation is completed and before being lifted, round steel is slowly extracted out in framework of steel reinforcement；
The installation of vertical stirrup positioning device：Along bridge to 2 elongated 5# angle steel of welding on reinforcing bar mould framing plate, by stirrup longitudinal direction
It designs spacing and cuts notch, to fixed bottom plate stirrup position；In two sides according to the elongated 5# angle steel of height of design stirrup, along bridge
It is connected to reinforcing bar mould bases, welds 1 5# angle steel by design bar spacing on angle iron position and cut notch, fixed web hoop
Muscle position；
The check and correction and reinforcing of reinforcing bar positioning die carrier：After each positioning device assembly is good, entire mould bases is proofreaded and reinforced, is examined
Reinforcement installation construction is carried out after looking into qualification；
(4) processing of precast beam framework of steel reinforcement and installation：Reinforcing bar try using numerical-control bending machine curved, determines numerical-control bending machine
Running parameter makes Length of Reinforcement Before Being Incised adjusted meet design requirement, and reinforcing bar is installed one by one in order, and is strictly pressed
Reinforcement installation, binding are carried out according to the position of steel bar positioning frame mark；Then according to design position prestressed pipeline, one is formed
A bellows and bottom web reinforcement meet the T beam reinforcement cages of design requirement, then arrange protective layer cushion block, control by plum blossom-shaped
The quantity of bottom plate and web reinforcement protective layer cushion block, which reaches, is uniformly distributed 4 requirements in every square metre, at the same guarantee cushion block with
The fastness of framework of steel reinforcement；
(5) special reinforced skeleton hanger is made by oneself：The truss-like reinforcing bar of big rigidity is welded into using I25a work steel and D25 spiral
Skeleton hanger；
(6) framework of steel reinforcement lifting and positioning：
Before framework of steel reinforcement lifting, framework of steel reinforcement whereabouts normal line is carried out on pedestal, and determines special messenger commander, to ensure reinforcing bar
Frame it is accurate in place；
After the completion of web reinforcement skeleton binding in bottom is finished and reinforced, starts gantry crane, wirerope is put down, respectively by the both ends of hanger
It is linked together by turnbuckle and wirerope with hanger, it is ensured that hanger is in horizontality；
It starts gantry crane hanger is hung to right above framework of steel reinforcement；
By suspension hook button such as corresponding position；For the deformation for controlling bottom web reinforcement skeleton, longitudinal reinforcement is penetrated at the top of web reinforcement；
Gantry crane lifts by crane upwards slightly, tightens wirerope, adjusts turnbuckle length, makes each suspension centre uniform force, pass through steel pipe
Dispersible concentrated force, and power is reached on entire framework of steel reinforcement, after confirming that each suspension centre connection is solid, slowly start gantry crane main hook to
On sling, hang ground 50cm or so, stand 15min, observe the deformation of hanger and framework of steel reinforcement；
It is smaller in confirmation hanger and framework of steel reinforcement deformation, after rigidity meets expected effect, it is upward to be again started up gantry crane main hook
It slings, until framework of steel reinforcement is greater than 2m, lock height apart from ground level；
Starting gantry crane moves forward along track, and travel speed controls within 6m/min, during traveling, cleaning
Barrier on track, and protection is carried out, it prevents pedestrian, vehicle etc. from invading track clearance, encounters abnormal conditions, should notify in time
Commander；
When in gantry hanging to concreting pedestal, cart halts, and framework of steel reinforcement is slowly put down；
During framework of steel reinforcement is slowly put down, by pico- movement all around, by framework of steel reinforcement exactitude position, fall,
Remove the suspension centre on framework of steel reinforcement；
(7) the die-filling of T beam, concreting and maintenance：After lifting is in place, steel is carried out according to traditional prestressed T beam working procedure
Positioning, assembled formwork, binding roof steel bar, casting concrete molding and the later period health of tendons skeleton.
2. a kind of prefabricated installation pipe gallery according to claim 1, it is characterised in that：Truss-like described in step (5)
Truss structure planar dimension and beam body framework of steel reinforcement top surface geometric identity, are decided using I25a work steel in framework of steel reinforcement hanger
Load-bearing is wanted, both sides use longitudinal pitch to be welded into triangular structure for the D25 spiral of 50cm, on longitudinal screw reinforcing bar,
At every side spacing 100cm setting with a10 round steel make one, suspension hook, and so on be evenly arranged, so as to bottom web reinforcement
Skeleton connection.
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| CN201810683760.5A CN108818919A (en) | 2018-06-28 | 2018-06-28 | Precast T-Beam reinforcing bar is bound in advance and the construction method of integral installation |
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| CN109815640A (en) * | 2019-03-19 | 2019-05-28 | 中国十九冶集团有限公司 | Curved surface steel box bridge tire erection method |
| CN109968522A (en) * | 2019-04-04 | 2019-07-05 | 常州新美水务有限公司 | The mounting device and installation method of prefabricated case beam bottom web reinforcement skeleton |
| CN110405938A (en) * | 2019-07-30 | 2019-11-05 | 云南省建设投资控股集团有限公司 | Precast T-Beam web reinforcement binding auxiliary moulding bed construction |
| CN111231101A (en) * | 2020-01-13 | 2020-06-05 | 中铁八局集团桥梁工程有限责任公司 | Automatic intelligent construction method |
| CN112376351A (en) * | 2020-11-03 | 2021-02-19 | 中国电建集团重庆工程有限公司 | Construction method of prefabricated beam road related to mountain knife back beam terrain |
| CN113183311A (en) * | 2021-04-16 | 2021-07-30 | 浙江交工金筑交通建设有限公司 | Construction method of prefabricated T-shaped beam |
| CN115770843A (en) * | 2022-12-08 | 2023-03-10 | 中铁二十三局集团有限公司 | Non-binding connection method for insulating steel bar framework |
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