CN110424532A - Large-span prestressed structure floor and high-precision construction floor one-pass molding construction method - Google Patents
Large-span prestressed structure floor and high-precision construction floor one-pass molding construction method Download PDFInfo
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- CN110424532A CN110424532A CN201910673125.3A CN201910673125A CN110424532A CN 110424532 A CN110424532 A CN 110424532A CN 201910673125 A CN201910673125 A CN 201910673125A CN 110424532 A CN110424532 A CN 110424532A
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- frame body
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- precompressed
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/16—Structures made from masses, e.g. of concrete, cast or similarly formed in situ with or without making use of additional elements, such as permanent forms, substructures to be coated with load-bearing material
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/02—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for rooms as a whole by which walls and floors are cast simultaneously, whole storeys, or whole buildings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses a kind of large-span prestressed structure floors and high-precision construction floor one-pass molding construction method, the following steps are included: expiring hall frame body system and concrete unit column combination progress Three-dimensional finite element modeling to prestressed reinforced concrete construction, high-supported formwork, and FEM Simulation is carried out, obtaining post-cast strip closing embodiment, concrete unit plate prestressed stretch-draw scheme and high-supported formwork expires form erection plan, precompressed scheme and the demoulding scheme of hall frame body；Carry out the construction of prestressing force high-supported formwork；The precompressed of full hall scaffold frame body is carried out according to precompressed scheme；Carry out structure flooring one-pass molding construction；Concrete unit plate is subjected to pre-stress construction；Embodiment is closed according to post-cast strip, determines and carries out pouring band piecemeal combined closing after reasonable plate built-up sequence carries out.Large-span prestressed structure floor proposed by the present invention and high-precision construction floor one-pass molding construction method, can reduce construction cost, while effectively shorten the construction period.
Description
Technical field
The present invention relates to the method for construction technical field of large-scale logistics workshop more particularly to a kind of large-span prestressed structures
Floor and high-precision construction floor one-pass molding construction method.
Background technique
With rapid economic development, original single layer structure workshop has been unable to meet the market demand, according to domestic and international current factory
The status of room design and construction tends to develop toward multi storied factory building, is on the one hand able to satisfy the demand of national economic development, another
Aspect can economize the land resource, and alleviate the problem of domestic city construction land anxiety.For logistic storage class workshop, due to it
Higher to flooring required precision using functional characteristics, flatness requirement is usually no more than 3mm/2m, very poor to be no more than 20mm；
And for multi storied factory building, two layers and the above flooring surface layer and structural concrete are typically designed as one-time-concreting construction molding.
It is once flattened due to carrying out flooring on large-span prestressed structure floor, flatness will reach the high-precision flat of design
It is required that must be controlled at two aspects in work progress: first is that the deformation of total system must be controlled in regulation model
In enclosing, second is that flooring leveling construction quality must control within the specified scope, wherein the Deformation control of structural system is difficult point
It is key point.
Summary of the invention
The main purpose of the present invention is to provide a kind of large-span prestressed structure floor and high-precision construction floor once at
Type construction method, it is intended to reduce construction cost, while effectively shorten the construction period.
To achieve the above object, the present invention provide a kind of large-span prestressed structure floor and high-precision construction floor once at
Type construction method, comprising the following steps:
Hall frame body system is expired to prestressed reinforced concrete construction, high-supported formwork and the combination of concrete unit column carries out three-dimensional and has
Meta Model is limited, and carries out FEM Simulation, obtains post-cast strip closing embodiment, concrete unit plate prestressed stretch-draw
Scheme and high-supported formwork expire form erection plan, precompressed scheme and the demoulding scheme of hall frame body；
Expire the form erection plan of hall frame body according to the high-supported formwork being calculated, carries out the construction of prestressing force high-supported formwork；
The precompressed of full hall scaffold frame body is carried out according to precompressed scheme；
Carry out structure flooring one-pass molding construction；
According to concrete unit plate prestressed stretch-draw scheme, concrete unit plate is subjected to pre-stress construction；
Embodiment is closed according to post-cast strip, determines and carries out pouring band piecemeal combination envelope after reasonable plate built-up sequence carries out
It closes.
Preferably, include following procedure when progress FEM Simulation:
Prestressed reinforced concrete construction is analyzed after concreting molding, after tensioning construction and high-supported formwork expires hall frame
Vertical deformation after body is removed under three kinds of states；
Analysis high-supported formwork expires the stress and deformation values of hall frame body, determines the springing height of primary-secondary beam；
The variation for analyzing structure secondary axes power brought by the various combinations of concrete unit plate, determines secondary axes force value
The smallest combination.
Preferably, the high-supported formwork that the basis is calculated expires the form erection plan of hall frame body, carries out prestressing force high-supported formwork
Before the step of construction further include:
Complete system is formed using two-step evolution using total station and level closure horizontal control network and vertical control point
One observing and controlling system；
It being measured during measurement using annexed leveling line, the survey of construction elevation point is located on standard section of tower crane, and
Perform label.
Preferably, the construction of prestressing force high-supported formwork includes full hall scaffold erection construction, beam forms installation, floor template peace
It is filled with and reinforcement installation, full hall scaffold uses fastener type steel pipe scaffold or disk buckle type scaffold, full hall scaffold setting is cut
Frame body is reinforced in knife support.
Preferably, when carrying out the precompressed of full hall scaffold frame body, after bed die is mated formation, precompressed is carried out to full hall scaffold, is adopted
With sandbag precompressed, precompressed loading sequence is successively symmetrically to carry out from beam-ends position to span centre position, point multistage progress precompressed.
Preferably, when full hall scaffold before precompressed, absolute altitude is reserved at top will calculate ground relative settlement amount, including frame body bullet
Property and non-resilient value.
Preferably, carrying out structure flooring one-pass molding construction includes: the control of concrete absolute altitude, concreting, laser booth
Paving machine concrete leveling, warehouse dispense abrasion-resistant powder, grinding, polishing, maintenance and flooring protection.
Preferably, when carrying out structure flooring one-pass molding construction,
Concreting: first pouring vertical structure, then pour horizontal structure, from low toward high, placement layer by layer；
Concrete vibrating: avoiding presstressed reinforcing steel and Grouting Pipe position, vibration compacting, and it is default deep that when placement layer by layer gos deep into lower layer
Degree；
Grinding, polishing: dispensing abrasion-resistant powder several times, after abrasion-resistant powder is impregnated with, install additional with sanding machine the machinery of disk
Trowel is polished, and after mechanical grinding, the mechanical trowel for remove disk receives light.
Preferably, include: when pre-stress construction
It spreads muscle: covering upper termination device in one end of every steel strand wires, and it is pre-buried that it by root is penetrated concrete unit column
Bellows in；
Tensioning: after steel strand wires put on limit plate, stretch-draw jack is connected, and put on reusable tool anchor slab, In
After installation tool intermediate plate, oil is sent to stretch-draw jack tensioning oil cylinder, until reaching control stress for prestressing；
Anchoring: that unclamps stretch-draw jack send oil circuit shut-off valve, and tensioning piston drives next time in presstressed reinforcing steel retraction force
In journey pre-determined distance, pass through work clip sheet anchoring prestress muscle；
Sealing end: at away from work clip sheet pre-determined distance, cutting off extra presstressed reinforcing steel, seal anchor head with concrete, presets
After time into tensioning duct mud jacking, and with concrete anchor head end sealed flat.
Large-span prestressed structure floor proposed by the present invention and high-precision construction floor one-pass molding construction method, construction
It is at low cost, and be effectively shortened the duration and be obviously improved the wearability of flooring, it can promote and improve domestic longspan structure
Floor and high-precision construction floor one-pass molding construction technology are horizontal, especially the successful application in warehouse logistics workshop, after being
The design and construction of warehouse logistics workshop provide reliable decision-making foundation and technical indicator, and social benefit and environmental benefit are aobvious
It writes.This method is conducive to promote the application of multi storied factory building, reduces appropriation of land, while saving construction material, has good
Environmental benefit.
Detailed description of the invention
Fig. 1 shows for the process of large-span prestressed structure floor of the invention and high-precision construction floor one-pass molding construction method
It is intended to；
Fig. 2 is large-span prestressed structure floor of the invention and high-precision one embodiment of construction floor one-pass molding construction method
The structural schematic diagram that middle concrete unit column divides；
Fig. 3 is large-span prestressed structure floor of the invention and high-precision one embodiment of construction floor one-pass molding construction method
The construction built-up sequence schematic diagram of middle concrete unit column.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
It should be noted that in the description of the present invention, term " transverse direction ", " longitudinal direction ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, and is not the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to limit of the invention
System.In addition, term " first ", " second " etc. are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
Referring to Fig.1, in this preferred embodiment, a kind of large-span prestressed structure floor and high-precision construction floor one-pass molding
Construction method, comprising the following steps:
Step S10, hall frame body system expired to prestressed reinforced concrete construction, high-supported formwork and concrete unit column combine into
Row Three-dimensional finite element modeling, and FEM Simulation is carried out, it is pre- to obtain post-cast strip closing embodiment, concrete unit plate
Stress tension scheme and high-supported formwork expire form erection plan, precompressed scheme and the demoulding scheme of hall frame body；
Step S20 expires the form erection plan of hall frame body according to the high-supported formwork being calculated, and carries out applying for prestressing force high-supported formwork
Work；
Step S30 carries out the precompressed of full hall scaffold frame body according to precompressed scheme；
Step S40 carries out structure flooring one-pass molding construction；
Step S50 applies concrete unit plate progress prestressing force according to concrete unit plate prestressed stretch-draw scheme
Work；
Step S60 closes embodiment according to post-cast strip, determines and carries out pouring band point after reasonable plate built-up sequence carries out
Block combined closing.
In step S10, carry out FEM Simulation when include following procedure:
Prestressed reinforced concrete construction is analyzed after concreting molding, after tensioning construction and high-supported formwork expires hall frame
Vertical deformation after body is removed under three kinds of states；
Analysis high-supported formwork expires the stress and deformation values of hall frame body, determines the springing height of primary-secondary beam；
The variation for analyzing structure secondary axes power brought by the various combinations of concrete unit plate, determines secondary axes force value
The smallest combination.
By MIDAS software, hall frame body system is expired to entire prestressed reinforced concrete construction, high-supported formwork and unit column combines
Carry out Three-dimensional finite element modeling.FEM Simulation checking computations include the following contents: deformation gauge when frame body ground bearing load
It calculates, deforms calculating, the deformation calculating of frame body construction load-bearing, structure when high-supported formwork expires the Force Calculation of hall frame body, frame body precompressed
Structure secondary axes power calculates when the Force Calculation of girder pre-stressed tensioning and deformation calculate, pre-stress element plate combines, frame body is removed
The deformation of structure calculates afterwards.
Further, before step S20 further include:
Step S11, using total station and level closure horizontal control network and vertical control point, using two-step evolution, shape
At complete unified observing and controlling system；
Step S12 uses annexed leveling line to measure (to eliminate or reduce instrument and other mistakes during measurement
Influence of the difference to construction), the survey of construction elevation point is located on standard section of tower crane, and performs label (can use paint).
In step S30, the construction of prestressing force high-supported formwork includes full hall scaffold erection construction, beam forms installation, flooring mould
Plate installation and reinforcement installation, full hall scaffold are set using fastener type steel pipe scaffold or disk buckle type scaffold, full hall scaffold
Bridging is set to reinforce frame body.
Beam span is greater than 4m, and beam bottom mother plate presses 0.1% arch camber of span.After beam bottom board installation, reinforcement installation completion divides again
Secondary installation side form, pressure foot and diagonal brace；
When span of slab is greater than or equal to 4m, template presses 0.1% arch camber of span.
In step S40, when carrying out the precompressed of full hall scaffold frame body, after bed die is mated formation, precompressed is carried out to full hall scaffold,
Using sandbag precompressed, precompressed loading sequence is successively symmetrically to carry out from beam-ends position to span centre position, point multistage progress precompressed.In advance
Press load by 1.2 times of considerations of concrete solid gravity, the precompressed phase is not less than 3 days.Can divide three-level carry out precompressed: 60% → 80%
→ 120%；
When full hall scaffold before precompressed, absolute altitude is reserved at top will calculate ground relative settlement amount, including frame body elasticity and non-
Elasticity number.Ground relative settlement amount determines that the flexible deformation of frame body is with husky general soft to calculate after testing inspection when basement process
Part program node, which calculates, to be determined.Frame body construction is heavy to stay value in 15~20mm or so, adjusts after preloading observation.
In step S40, carrying out structure flooring one-pass molding construction includes: the control of concrete absolute altitude, concreting, laser
Paver concrete leveling, warehouse dispense abrasion-resistant powder, grinding, polishing, maintenance and flooring protection.When concrete absolute altitude controls,
Flooring absolute altitude introduction point is projected on standard section of tower crane, then is introduced on floor structure column and is spread out by the absolute altitude on standard section of tower crane
On the laser emitter of paving machine.
When carrying out structure flooring one-pass molding construction,
Concreting: first pouring vertical structure, then pour horizontal structure, from low toward high, placement layer by layer；
Concrete vibrating: avoiding presstressed reinforcing steel and Grouting Pipe position, vibration compacting, and it is default deep that when placement layer by layer gos deep into lower layer
It spends (500mm)；
Grinding, polishing: dispense several times abrasion-resistant powder (such as can in two times, first time dosage is 60%, and second of dosage be
40%) it, after abrasion-resistant powder is impregnated with, is polished with the mechanical trowel that sanding machine install additional disk, after mechanical grinding, carries out removing disk
Mechanical trowel receive light.
In concrete initial set (people has a footprint when trampling upper ground surface, but unobvious sagging when), polished using two-wheel
Machine carries out the first mechanical trowel operation for installing disk additional, removes laitance, warehouse.
In step S50, when pre-stress construction, includes:
It spreads muscle: covering upper termination device (special sub warhead can be used) in one end of every steel strand wires, and it is penetrated by root
In the pre-buried bellows of concrete unit column；
Tensioning: after steel strand wires put on limit plate, stretch-draw jack is connected, and put on reusable tool anchor slab, In
After installation tool intermediate plate (clip surface, which is coated, moves back anchor spirit), oil is slowly sent to the tensioning oil cylinder of stretch-draw jack, is opened until reaching
Draw proof stress；
Anchoring: that unclamps stretch-draw jack send oil circuit shut-off valve, and tensioning piston drives next time in presstressed reinforcing steel retraction force
In journey pre-determined distance (6-8 millimeters), pass through work clip sheet anchoring prestress muscle；
Sealing end: at away from work clip sheet pre-determined distance (50m), cutting off extra presstressed reinforcing steel, seal anchor head with concrete,
Mud jacking in the duct Xiang Zhangla (in 48 hours) after preset time, and with concrete sealed anchor head end flat.
In step S60, influence of the sequence to prestressing force secondary axes power is poured by finite element model analysis post-cast strip, proposes to close
Close embodiment in the post-cast strip of reason；And post-cast strip piecemeal combined closing is carried out by reasonable plate built-up sequence is formulated.With Fig. 2
For the concrete unit column of this structure, sequence shown in Fig. 3 can be used and carry out post-cast strip pouring construction.
Compared with prior art, the present invention has the beneficial effects that
With structure and the secondary Construction Comparison of construction floor, the duration is shorter.Referring to table 1, with a 1000m2Structure job step
It compares, the duration saves 5 days.
The new and old arrangement and method for construction duration contrast table of table 1
There is preferable economic benefit, with a 1000m with structure and the secondary Construction Comparison of construction floor referring to table 22
Structure job step compares, and saves project cost 14.3%.
The new and old arrangement and method for construction of table 2 unit price and total price contrast table
The large-span prestressed structure floor and high-precision construction floor one-pass molding construction method that the present embodiment proposes, are applied
Work is at low cost, and is effectively shortened the duration and has been obviously improved the wearability of flooring, can promote and improve domestic large span knot
Structure floor and high-precision construction floor one-pass molding construction technology are horizontal, especially the successful application in warehouse logistics workshop, for
The design and construction of warehouse logistics workshop provide reliable decision-making foundation and technical indicator afterwards, and social benefit and environmental benefit are aobvious
It writes.This method is conducive to promote the application of multi storied factory building, reduces appropriation of land, while saving construction material, has good
Environmental benefit.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure transformation made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant technical fields,
Similarly it is included within the scope of the present invention.
Claims (9)
1. a kind of large-span prestressed structure floor and high-precision construction floor one-pass molding construction method, which is characterized in that including
Following steps:
Hall frame body system is expired to prestressed reinforced concrete construction, high-supported formwork and the combination of concrete unit column carries out three-dimensional finite element
Modeling, and FEM Simulation is carried out, obtain post-cast strip closing embodiment, concrete unit plate prestressed stretch-draw scheme
And high-supported formwork expires form erection plan, precompressed scheme and the demoulding scheme of hall frame body；
Expire the form erection plan of hall frame body according to the high-supported formwork being calculated, carries out the construction of prestressing force high-supported formwork；
The precompressed of full hall scaffold frame body is carried out according to precompressed scheme；
Carry out structure flooring one-pass molding construction；
According to concrete unit plate prestressed stretch-draw scheme, concrete unit plate is subjected to pre-stress construction；
Embodiment is closed according to post-cast strip, determines and carries out pouring band piecemeal combined closing after reasonable plate built-up sequence carries out.
2. large-span prestressed structure floor as described in claim 1 and high-precision construction floor one-pass molding construction method,
Be characterized in that, carry out FEM Simulation when include following procedure:
Prestressed reinforced concrete construction is analyzed after concreting molding, after tensioning construction and high-supported formwork is expired hall frame body and torn open
Except the vertical deformation under rear three kinds of states；
Analysis high-supported formwork expires the stress and deformation values of hall frame body, determines the springing height of primary-secondary beam；
The variation for analyzing structure secondary axes power brought by the various combinations of concrete unit plate determines that secondary axes force value is minimum
Combination.
3. large-span prestressed structure floor as described in claim 1 and high-precision construction floor one-pass molding construction method,
It is characterized in that, the high-supported formwork that the basis is calculated expires the form erection plan of hall frame body, carries out the construction of prestressing force high-supported formwork
Before step further include:
Using total station and level closure horizontal control network and vertical control point, completely unified using two-step evolution, formation
Observing and controlling system；
It is measured during measurement using annexed leveling line, the survey of construction elevation point is located on standard section of tower crane, and is performed
Label.
4. large-span prestressed structure floor as claimed in claim 3 and high-precision construction floor one-pass molding construction method,
Be characterized in that, the construction of prestressing force high-supported formwork include full hall scaffold erection construction, beam forms installation, floor template installation and
Reinforcement installation, full hall scaffold use fastener type steel pipe scaffold or disk buckle type scaffold, and bridging pair is arranged in full hall scaffold
Frame body is reinforced.
5. large-span prestressed structure floor as described in claim 1 and high-precision construction floor one-pass molding construction method,
It is characterized in that, when carrying out the precompressed of full hall scaffold frame body, after bed die is mated formation, precompressed is carried out to full hall scaffold, using sandbag
Precompressed, precompressed loading sequence are successively symmetrically to carry out from beam-ends position to span centre position, point multistage progress precompressed.
6. large-span prestressed structure floor as claimed in claim 5 and high-precision construction floor one-pass molding construction method,
It is characterized in that, when full hall scaffold before precompressed, absolute altitude is reserved at top will calculate ground relative settlement amount, including frame body elasticity and non-
Elasticity number.
7. large-span prestressed structure floor as described in claim 1 and high-precision construction floor one-pass molding construction method,
Be characterized in that, carry out the one-pass molding of structure flooring construction include: the control of concrete absolute altitude, concreting, laser paver mix
Solidifying soil is levelling, warehouse, dispenses abrasion-resistant powder, grinding, polishing, maintenance and flooring protection.
8. large-span prestressed structure floor as claimed in claim 7 and high-precision construction floor one-pass molding construction method,
It is characterized in that, when carrying out structure flooring one-pass molding construction,
Concreting: first pouring vertical structure, then pour horizontal structure, from low toward high, placement layer by layer；
Concrete vibrating: avoiding presstressed reinforcing steel and Grouting Pipe position, vibration compacting, and when placement layer by layer gos deep into lower layer's predetermined depth；
Grinding, polishing: dispensing abrasion-resistant powder several times, after abrasion-resistant powder is impregnated with, is beaten with the mechanical trowel that sanding machine install additional disk
It grinds, after mechanical grinding, the mechanical trowel for remove disk receives light.
9. large-span prestressed structure floor as described in claim 1 and high-precision construction floor one-pass molding construction method,
It is characterized in that, when pre-stress construction includes:
It spreads muscle: covering upper termination device in one end of every steel strand wires, and it is penetrated into the pre-buried wave of concrete unit column by root
In line pipe；
Tensioning: after steel strand wires put on limit plate, stretch-draw jack is connected, and put on reusable tool anchor slab, installed
After tool clamping piece, oil is sent to stretch-draw jack tensioning oil cylinder, until reaching control stress for prestressing；
Anchoring: that unclamps stretch-draw jack send oil circuit shut-off valve, and the backhaul under the drive of presstressed reinforcing steel retraction force of tensioning piston is pre-
If passing through work clip sheet anchoring prestress muscle apart from interior；
Sealing end: at away from work clip sheet pre-determined distance, extra presstressed reinforcing steel is cut off, seals anchor head, preset time with concrete
Mud jacking in backward tensioning duct, and anchor head end is sealed with concrete and is put down.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910673125.3A CN110424532A (en) | 2019-07-24 | 2019-07-24 | Large-span prestressed structure floor and high-precision construction floor one-pass molding construction method |
| PCT/CN2020/090566 WO2021012759A1 (en) | 2019-07-24 | 2020-05-15 | Long-span pre-stressed structure floor slab and high-precision building floor topping one-time forming construction method |
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| CN201910673125.3A CN110424532A (en) | 2019-07-24 | 2019-07-24 | Large-span prestressed structure floor and high-precision construction floor one-pass molding construction method |
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Cited By (1)
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|---|---|---|---|---|
| WO2021012759A1 (en) * | 2019-07-24 | 2021-01-28 | 中建三局第一建设工程有限责任公司 | Long-span pre-stressed structure floor slab and high-precision building floor topping one-time forming construction method |
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| CN105133841A (en) * | 2015-07-29 | 2015-12-09 | 五洋建设集团股份有限公司 | Spatial curved surface steel structure pipe truss roof installation construction method |
| CN108319755A (en) * | 2017-12-29 | 2018-07-24 | 黑龙江大学 | A kind of overall process optimization method of Super High hydraulic climbing formwork scaffold construction |
| CN108330835A (en) * | 2018-01-31 | 2018-07-27 | 中铁二十二局集团第工程有限公司 | The construction method of setting bracket |
| CN109267683A (en) * | 2018-08-28 | 2019-01-25 | 重庆大学 | A kind of high-precision flatness control methods of prestressed structure flooring one-pass molding |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021012759A1 (en) * | 2019-07-24 | 2021-01-28 | 中建三局第一建设工程有限责任公司 | Long-span pre-stressed structure floor slab and high-precision building floor topping one-time forming construction method |
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| WO2021012759A1 (en) | 2021-01-28 |
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