CN104453229B - Large-span load-bearing prestress double-T plate construction method - Google Patents
Large-span load-bearing prestress double-T plate construction method Download PDFInfo
- Publication number
- CN104453229B CN104453229B CN201410708254.9A CN201410708254A CN104453229B CN 104453229 B CN104453229 B CN 104453229B CN 201410708254 A CN201410708254 A CN 201410708254A CN 104453229 B CN104453229 B CN 104453229B
- Authority
- CN
- China
- Prior art keywords
- plate
- pair
- double
- construction method
- formwork structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention discloses a large-span load-bearing prestress double-T plate construction method. The method comprises the steps that firstly, a double-T plate formwork structure is provided and comprises a shaped formwork frame and two ribbed beam end formworks, wherein double-T-shaped pouring channels are formed in the shaped formwork frame, and the two ribbed beam end formworks seal the two ends of the double-T-shaped pouring channels; each ribbed beam end formwork comprises a horizontal rib pressing plate, two vertical rib connecting plates and locating plates, wherein the two vertical rib connecting plates are arranged at the bottom of the horizontal rib pressing plate in a supporting mode, the locating plates are detachably connected to the bottoms of the vertical rib connecting plates, and each locating plate is provided with a plurality of tensioning holes used for penetration of reinforcing bars; secondly, long-line arrangement is conducted on the double-T plate formwork structure, and tensioning pedestals are arranged at the two ends of the double-T plate formwork structure; thirdly, the reinforcing bars penetrate through the tensioning holes in the locating plates, and reinforcing bar nets and embedded parts are arranged; fourthly, the reinforcing bars are subjected to prestress tension; fifthly, after the prestress of the reinforcing bars meets the strength requirement, concrete is poured into the double-T-shaped pouring channels; sixthly, after pouring is completed, concrete curing is conducted; seventhly, after curing is completed, the reinforcing bars are released, the double-T plate formwork structure is dismantled after the reinforcing bars are released, and then a double-T plate is made.
Description
Technical field
The present invention relates to the realm of building construction, refer in particular to a kind of large-span prestressed pair of t board construction method of New type weight loading.
Background technology
Increasingly mature with assembly concrete technology, domestic start " tide of building industrialization ".Assembled steel reinforced
Xoncrete structure is one of important directions of China's building structure development, and it is conducive to the development of China's building industrialization, improves
Production efficiency energy saving, develops Green environmental-protection building, and is conducive to improving and ensures construction engineering quality.With cast-in-place construction
Engineering method is compared, and precast reinforced concrete structure is conducive to green construction, because fabricated construction more can meet green construction
Save land, energy-conservation, section material, water saving and environmental protection etc. require, reduce the negative effect to environment, include reduction noise, prevent from raising
Resource and the energy such as dirt, minimizing environmental pollution, cleaning transport, the interference of minimizing place, saving water, electricity, material, it then follows sustainable development
The principle of exhibition.And, fabricated construction continuously can complete multiple or whole operations of engineering in order, thus reduce marching into the arena
Engineering machinery type and quantity, eliminate procedure connection rests the time, realizes interchange operation, reduces workmen, from
And improve work efficiency, reduce supplies consumption, reduce environmental pollution, it is that green construction provides safeguard.
Existing t template component has that the scale of construction is big, number of types is many, different in size, plate face and end rib cross section type are many
The problems such as sample, different size of pair of t plate is needed to make different steel forms, increased cost.Existing t template component is deposited
Weight capacity is little, limited by span, the limiting factor such as globality poor is it is therefore necessary to carry out to the preparation method of existing t template
Improve.
Content of the invention
In view of the problems referred to above, the invention provides a kind of large-span prestressed pair of t board construction method of New type weight loading, bag
Include:
Double t plate formwork structures are provided, described pair of t plate formwork structure include in be provided with the typified form that double t types pour passage
Skeleton and closing are connected to two girt strip Side Templates that described pair of t type pours passage two ends, and described girt strip Side Template includes level
Rib pressing plate, corresponding described pair of t type pour channel support in two vertical rib connecting plate, Yi Jike of described horizontal ribs pressing plate bottom
Dismounting is connected to the location-plate of described vertical rib connecting plate bottom, described location-plate offers for wearing a plurality of of reinforcing bar
Tensioning hole；
Long line arrangement is carried out to described pair of t plate formwork structure, corresponds to described positioning at the two ends of described pair of t plate formwork structure
The position setting stretching bed seat of plate；
Described pair of t plate formwork structure is carried out wearing muscle, reinforcing bar is passed through the tensioning hole on described location-plate, and described double
Arrangement reinforced mesh and built-in fitting on t plate formwork structure；
By described stretching bed seat, prestressed stretch-draw is carried out to the reinforcing bar being located in described pair of t plate formwork structure；
After the prestressing force of described reinforcing bar reaches intensity requirement, pour in passage in double t types of described pair of t plate formwork structure
Row concreting；
After concreting finishes, maintenance is carried out to concrete；
After concrete curing finishes, described reinforcing bar is carried out put, reinforcing bar removes described pair of t plate formwork structure after putting,
Complete double t plates.
Large-span prestressed pair of t board construction method of the New type weight loading of the present invention, using typified form skeleton and girt strip end mould
The mode that plate combines, because the bottom that location-plate is removably connected to vertical rib connecting plate leads to, therefore can want according to different
The technological characteristics of construction of the double t plates asked, reaches, by exchanging the location-plate of different length, the purpose changing girt strip variable cross-section.System
Make double t plates of being molded and there is good structural mechanical property, weight capacity by force, clear and definite power transmission level, succinct geometry,
It is a kind of large span, big area coverage, both economical supporting member.Overcome double t board members in the past, weight capacity is little, across
Degree is limited, the limiting factor of globality poor.
Further improvement is that of large-span prestressed pair of t board construction method of New type weight loading of the present invention, described stretching bed seat
It is made up of with the tensioning pier being supported in below described load steelframe load steelframe, described load steelframe is by box bracket and crossbeam group
Become, described box bracket is fixed on described tensioning pier by built-in fitting.
Further improvement is that, to described pair of t template die of large-span prestressed pair of t board construction method of New type weight loading of the present invention
Before hardened structure carries out wearing muscle, further comprise the steps of:
Described pair of t plate formwork structure is cleared up, and the residue of residual on described pair of t plate formwork structure face is carried out clearly
Reason polishing, to described pair of t plate formwork structure brushing stone wax releasing agent after cleaning out.
Further improvement is that of large-span prestressed pair of t board construction method of New type weight loading of the present invention, described to being located in
When reinforcing bar in double t plate formwork structures carries out prestressed stretch-draw by described stretching bed seat, the prestress control of reinforcing bar is existed
95% to 105%.
Further improvement is that of large-span prestressed pair of t board construction method of New type weight loading of the present invention, further comprises the steps of:
After concreting finishes, before treating concrete initial set, the plate face of double t plate formwork structures is carried out at first time hair light
Reason；
Concrete is carried out before maintenance, second mao of light process is carried out to the plate face of double t plate formwork structures.
Further improvement is that of large-span prestressed pair of t board construction method of New type weight loading of the present invention, described location-plate leads to
Cross bolt to be connected with described vertical rib connecting plate, described girt strip Side Template is connected with described typified form skeleton by bolt.
Further improvement is that of large-span prestressed pair of t board construction method of New type weight loading of the present invention, described typified form
The position of the corresponding described location-plate in the outside of skeleton is reinforced with reinforcing square steel, and the outside of described typified form skeleton corresponds to described water
The position of flat rib pressing plate is reinforced with bearing diagonal, and described bearing diagonal bottom is reinforced with support base.
Further improvement is that of large-span prestressed pair of t board construction method of New type weight loading of the present invention, described typified form
Skeleton includes being spliced to form described pair of t type and pours the panel of passage and be supported in the frame of described panels outside.
Further improvement is that of large-span prestressed pair of t board construction method of New type weight loading of the present invention, described frame adds
Intrinsic floor.
The double t plates being made using large-span prestressed pair of t board construction method of the New type weight loading of the present invention, as full assembled
The main supporting member of reinforced concrete structure, it is different from the traditional non-bearing type t template of construction market, and its construction features is
Span is big, no cross rib, and high capacity, girt strip width are big, wing plate is thin, lead to beneficial to factory's large-scale standardized production, template construct
With property is strong, production cost is relatively low, conventional belt horizontal termination rib non-bearing t template can be replaced.
Large-span prestressed pair of t board construction method of the New type weight loading of the present invention, combines Construction Technology of Fair Faced Concrete, elder generation
Method prestressing technique, overlength, super large combined steel formwork plate technique etc., become prefabricated assembled production and construction once audaciously
Information hierarchy, has the construction technology of larger dissemination.
Brief description
Fig. 1 is the flow chart of large-span prestressed pair of t board construction method of New type weight loading of the present invention.
Fig. 2 is a kind of pair of t plate formwork structure used in large-span prestressed pair of t board construction method of New type weight loading of the present invention
Structural representation.
Fig. 3 is the decomposing schematic representation of the double t plate formwork structures in Fig. 2.
Fig. 4 and Fig. 5 is the knot of the double t plates being made using large-span prestressed pair of t board construction method of New type weight loading of the present invention
Structure schematic diagram.
Fig. 6～Fig. 9 is the double t plate cooperations being made using large-span prestressed pair of t board construction method of New type weight loading of the present invention
The termination schematic diagram of the body of wall of different structure.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, not
For limiting the present invention.
Fig. 1 is the flow chart of large-span prestressed pair of t board construction method of New type weight loading of the present invention, cooperation referring to shown in Fig. 1,
Large-span prestressed pair of t board construction method of New type weight loading of the present invention, comprising:
S101 provides double t plate formwork structures, described pair of t plate formwork structure include in be provided with the sizing that double t types pour passage
Form cage and closing are connected to two girt strip Side Templates that described pair of t type pours passage two ends, and described girt strip Side Template includes
Horizontal ribs pressing plate, corresponding described pair of t type pour channel support in described horizontal ribs pressing plate bottom two vertical rib connecting plates, with
And it is removably connected to the location-plate of described vertical rib connecting plate bottom, described location-plate offers the plural number for wearing reinforcing bar
Individual tensioning hole；
S102 carries out long line arrangement to described pair of t plate formwork structure, corresponding described at the two ends of described pair of t plate formwork structure
The position setting stretching bed seat of location-plate；
S103 carries out wearing muscle to described pair of t plate formwork structure, and reinforcing bar is passed through the tensioning hole on described location-plate, and in institute
State arrangement reinforced mesh and built-in fitting on double t plate formwork structures；
S104 carries out prestressed stretch-draw to the reinforcing bar being located in described pair of t plate formwork structure by described stretching bed seat；
After the prestressing force of reinforcing bar described in s105 reaches intensity requirement, pour passage in double t types of described pair of t plate formwork structure
Inside carry out concreting；
After s106 concreting finishes, maintenance is carried out to concrete；
After s107 concrete curing finishes, described reinforcing bar is carried out put, it is hardened that reinforcing bar removes described pair of t template die after putting
Structure, complete double t plates.
Fig. 2 is a kind of pair of t plate formwork structure used in large-span prestressed pair of t board construction method of New type weight loading of the present invention
Structural representation, Fig. 3 is the decomposing schematic representation of the double t plate formwork structures in Fig. 2.Cooperation referring to shown in Fig. 2 and Fig. 3, this couple of t
Plate formwork structure, comprising:
Typified form skeleton, is formed with double t types and pours passage 10 in described typified form skeleton；
Two girt strip Side Templates 20, close off and are connected to the double t types formed in described typified form skeleton and pour passage
10 two ends, in conjunction with shown in Fig. 3, girt strip Side Template 20 includes horizontal ribs pressing plate 210, corresponding described pair of t type pours 10, passage
Support in two vertical rib connecting plates 220 of horizontal ribs pressing plate 210 bottom and vertical rib connection is removably connected to by bolt
The location-plate 230 of plate 220 bottom, location-plate 230 offers a plurality of tensioning holes 240 for wearing reinforcing bar；
Girt strip Side Template 20 is fixedly connected with described typified form skeleton by bolt, described typified form skeleton and two
Girt strip Side Template 20 encloses and forms above-mentioned double t plate formwork structures.
Further, in conjunction with shown in Fig. 3, described typified form skeleton includes being spliced to form described pair of t type and pours passage 10
Panel 110 and the frame 120 being supported in panel 110 outside, frame 120 is reinforced with floor 130.Described typified form skeleton
The position of the corresponding location-plate 230 in outside be reinforced with reinforcing square steel 310, the outside of described typified form skeleton corresponds to horizontal ribs pressure
The position of plate 210 is reinforced with bearing diagonal 320, and the bottom of bearing diagonal 320 is reinforced with support base 330.Wherein preferably, bearing diagonal
320 is l63 type angle steel, and support base 330 is channel-section steel.
Large-span prestressed pair of t board construction method of the New type weight loading of the present invention, using typified form skeleton and girt strip end mould
The mode that plate combines, because the bottom that location-plate is removably connected to vertical rib connecting plate leads to, therefore can want according to different
The technological characteristics of construction of the double t plates asked, reaches, by exchanging the location-plate of different length, the purpose changing girt strip variable cross-section.Figure
4 and Fig. 5 is the structural representation of the double t plates being made using large-span prestressed pair of t board construction method of New type weight loading of the present invention.As
Shown in Fig. 4, it is the double t plates being fabricated to using the standard setting plate with horizontal ribs pressing plate equal length.As shown in figure 5, being to adopt
Length is more than double t plates that the location-plate of horizontal ribs pressing plate is fabricated to.
Fig. 6～Fig. 9 is the double t plates 40 being made using large-span prestressed pair of t board construction method of New type weight loading of the present invention
The termination schematic diagram of the body of wall 50 of cooperation different structure.As can be seen here, large-span prestressed pair of t plate of the New type weight loading of the present invention is applied
Work method, can meet various sizes of template construct requirement, improve component production efficiency to greatest extent, reach that " mould is many
With detachable " purpose, be maximally maintained template versatility, improve template week transfer efficient.Avoid independent process mating
The template that side form brings puts into.Break single, the limited design concept of traditional non-bearing t template girt strip, wing plate changes of section.
The double t plates being made using the large-span prestressed pair of t board construction method of the New type weight loading of the present invention, by pour mixed
First prestressed tensioning is carried out to the reinforcing bar being located in double t plate formwork structures before solidifying soil, so that double t plates of shaping is had well
Structural mechanical property, weight capacity is strong, clear and definite power transmission level, succinct geometry, is a kind of large span, big coverage rate
Long-pending, both economical supporting member.Overcome double t board members in the past, weight capacity is little, span is limited, the restriction of globality poor
Factor.
Below in conjunction with specific embodiment, taking the first prefabricated assembled parking building construction in the whole nation as a example, new to the present invention
Large-span prestressed pair of t board construction method of load-bearing is described in detail.In this prefabricated assembled parking building construction, double t plates are
1856 pieces, 56 pieces of single t plate, 216 types, thick 50 millimeters of plate face, span is 16.90～17.25 meters, component length 16960～
Between 17250 meters, the heaviest double t plates up to 15 tons, completing can be used for floor or roof boarding.
In this embodiment, large-span prestressed pair of t board construction method of New type weight loading of the present invention includes:
Step 1: above-mentioned double t plate formwork structures are provided, described pair of t plate formwork structure include in be provided with pair t types pour logical
The typified form skeleton in road and closing are connected to two girt strip Side Templates that described pair of t type pours passage two ends, described girt strip end
Template includes horizontal ribs pressing plate, corresponding described pair of t type pours channel support in two vertical ribs of described horizontal ribs pressing plate bottom
Connecting plate and the location-plate being removably connected to described vertical rib connecting plate bottom, described location-plate offer for wearing
A plurality of tensioning holes of reinforcing bar.In this embodiment, the equal length of the length of location-plate and horizontal ribs pressing plate.
Step 2: long line arrangement is carried out to described pair of t plate formwork structure, corresponds to institute at the two ends of described pair of t plate formwork structure
State the position setting stretching bed seat of location-plate.
Double t plate formwork structure mould positions arrangement: often cover double 17.4 meters of t plate formwork structure length × wide 2.4 meters, 4 production lines are altogether
16 sets of meter.According to place space, stretching bed seat and technological requirement, carry out long line arrangement.On-gauge plate presses 4 mould positions of every production line
Carry out the arrangement of linear pattern long through type, the form stop positioned at two ends sets stretching bed seat mould.Sketch plate and to change modulus larger
Individually arranged respectively.The base expansion bolt of double t plate formwork structures is fixed on mattess, and local is made at two ends
Reinforcement is processed, and ensures whole pedestal, the flatness in template face.
Stretching bed for longline production: stretching bed seat is made up of with the tensioning pier being supported in below load steelframe load steelframe.Its structure
Make and take power transmission pier, pedestal plate, the common stress form of table top, so as to relying on dead-weight balanced stretching force, and pier deadweight can be reduced
And buried depth.Tensioning pier adopts gravity pillar type, and the depth of its concrete pier base and size are determined by calculating.Actual tensioning pier is deep
Spend for 1.5 meters, 5 meters of length, 2.5 meters of width, 4 production lines are simultaneously 15 meters together.Load steelframe is by box bracket and crossbeam
Composition, box bracket is fixed on the concrete pier base of tensioning pier by built-in fitting.4 sets on the long line of whole piece double t template dies are hardened
Structure face top mark is high need consistent it is ensured that stretching bed seat, vertical rib connecting plate tensioning hole point-blank.Table in 2 meters of length of template
Surface evenness is not more than 2 millimeters.In the area that temperature Change is larger, long-line pedestal arranges expansion joint.Stretching bed seat need to the row of being provided with
The water gradient, surrounding sets drainage system, and place is clean, no ponding.
Before described pair of t plate formwork structure is carried out wearing muscle, further comprise the steps of:
Described pair of t plate formwork structure is cleared up, after cleaning out, described pair of t plate formwork structure brushing paraffin matter is taken off
Mould agent.
The cleaning of mould: the side template of double t plate formwork structures, girt strip, interior lining panel need to prevent mould with machine oil, diesel oil cleaning
Corrosion, pollution in plate face.And entered with the concrete residue that sanding machine, iron wire ball remain to double t plate formwork structure faces stage by stage
Row cleaning polishing is it is ensured that concrete clear-water concrete effect.
Brush stone wax releasing agent: after double t plate formwork structures clean out, embrocate template table with staple or cotton releasing agent
Face, must not leak brush, immediately with the releasing agent that the erasing of clean staple is unnecessary after brushing, smear uniformity, no obvious decorative pattern.
Step 3: described pair of t plate formwork structure is carried out wearing muscle, reinforcing bar is passed through the tensioning hole on described location-plate, and
Arrangement reinforced mesh and built-in fitting on described pair of t plate formwork structure.
Wear muscle, put muscle: steel strand wires are hung in draw drum, then termination end socket pattern hole is passed through by manpower or mechanical traction
Hole, to the other end, is worn silk in order and is entered hole, and after the perforation of long line finishes, amount standard length is it is ensured that two ends hole position is to straight, by regulation pressure
Power heading, finally cuts off steel wire with cutting machine.Wear after muscle finishes, before end template matched moulds, the steel in the range of tool end 1500 is twisted
Line does painting oil processing.Forbid during oiling oil droplet is sprinkling upon in template.
Put reinforced mesh and built-in fitting: plate face mesh sheet muscle is a10, other flanks, floor end rib position are a8.In advance
Press design requirement before stress tension, put reinforced mesh in plate face, rib of slab, reinforced mesh requirement thickness is 1 centimetre of coagulation
Native cushion block or the larger plastic cushion of intensity pave that (concrete mats block size is 2 cm x 2 cm, and intensity is not less than
C30, every square metre of plate face cushion block uses 3～4 pieces).
Shuttering: prestressing force wears muscle, put muscle before, first carry out the installation of side end head formwork, treat that reinforcing bar concealment acceptance finishes
Afterwards, after side prestressing force wears muscle, then carry out the installation of the side template to double t plate formwork structures for the opposite side, plate stitch junction need to be with 1
The sealing of centimetre wide sponge strip is tight, prevents running pulp, missing inspection, and it is straight, uniform to ensure that sponge strip is puted up.The positioning of side template
Bolt requires fastening, forbids to occur loosening, threads off.
Check template, reinforcing bar, built-in fitting, treat that shuttering finishes, before concreting, length is positioned to double t plate formwork structures
Degree, reinforcing bar, built-in fitting quantity, positioning, protective layer are rechecked.Treat acceptance(check), next process can be carried out.
Step 4: by described stretching bed seat, prestressing force is carried out to the reinforcing bar being located in described pair of t plate formwork structure
Draw.
Tensioning: double t plate formwork structure steel strand wires are as15.2, nominal area of section is 139mm2, power resistance strength standard value
For 1860n/mm2.Tension control stress coefficient is 0.75.Single tendon stretch power: 194kn.Total stretching force: 1939kn.Adopt during tensioning
Carry out tensioning, supporting oil pump stdb 0.63 × 63, oil meter y-150 with ycn-25 centre-hole jack.Anchorage adopts single hole intermediate plate
Formula anchorage m15-1.It is anchored at after steel strand tension on load steelframe.During tension reinforcing steel bar, respectively by one man operation, a people is in anchor at two ends
Fixed end is good by steel wire anchoring, and anchorage is inserted in after steel wire the other end, reinforcing bar fixture is clipped, starts stretching machine, when tensioning is arrived
After regulation pulling force, check steel wire internal force, its stress also must not must not be higher than proof stress 105% less than 95%.
Step 5: after the prestressing force of described reinforcing bar reaches intensity requirement, pour logical in double t types of described pair of t plate formwork structure
Carry out concreting in road.
Placing concrete: template size and built-in fitting, cover to reinforcement should be checked before placing concrete, after confirmation is qualified,
Concrete hopper is hung to beginning blanking inside form stop plate.Blanking is uniformly appropriate, must not arbitrarily add water in production process,
Land concrete must not be concentrated use in, and make test block (maintaining test block with same condition, every shift, every teams and groups, every piece of field on request
Ground, every kind of match ratio are no less than one group).Accomplish the feed supplement in Zhen Bianchan when vibrating, after plate face is smooth return slurry after, stop vibrating.
Vibrating spear is inserted soon and is pulled out slowly, and interval is less than 0.5 meter；Flat board vibrates after returning slurry, stops.Vibration board should have with the vibrating spear time
Certain intervals (are typically spaced 5～10 minutes).
Step 6: after concreting finishes, maintenance is carried out to concrete.
Plate matsurface hair light is processed: before treating concrete initial set, the plate face of double t plate formwork structures is carried out at first time hair light
Reason, it is ensured that the degree of roughness of plate face, is easy to the combination of later stage precast surface and cast-in-place concrete overlapping layers.Prefabricated part steam curing
Before, plate face is carried out with secondary hair light and processes.
Steam curing: after molding component, timely plastic covering film, maintenance of heating.Curing temperature according to weather conditions and
Depending on cement type, not higher than 80 DEG C of general maintenance temperature, suitably water when dry, keep concrete to have moistening enough
State.Must not water when temperature is less than 5 DEG C.The maintenance same mixing water of water, all must not use sewage, be drunk with standard
Water.Temperature change controls within 25 DEG C curing temperature per hour, has broken concrete and can stop little for after temperature 3 for temperature in 4 hours
Shi Fangke is put and is opened.Tarpaulin need to be covered during double t plate formwork structure winter construction it is ensured that the temperature of hot-die, and adopt inserted electronic
Thermo detector carries out thermometric, and each component selects point for measuring temperature at three it is ensured that accurately.
A step 7: after concrete curing finishes, described reinforcing bar is carried out put, reinforcing bar removes described pair of t template die plate after putting
Structure, complete double t plates, as shown in Figure 4.
Steel wire is put: concrete strength reaches and can carry out when more than 100% putting that (being designed without requirement should be
75%), put and open and should symmetrically discharge.Presstressed reinforcing steel puts Zhang Caiyong cast-cutting saw, first at the middle part (between the 3rd, 4 sets of templates) of every line
Every piece of plate unnecessary muscle is cut after form removal by cut-out again.Steel strand wires retraction when putting, will drive pair t plate formwork structures to two ends
Tensioning pier direction is moved, and must remove the template of side and end mould, make double t plate formwork structures put Zhang Shineng and exist before therefore putting
Free sliding on bed die, and will not cause to damage.
Form removal: after double t plate formwork structure steam curings terminate to put for 3 hours, the dismounting of side template can be carried out, remove
Order, according to first termination, middle principle afterwards, forbids the situation occurring in demolishing process destroying concrete arrisdefect, damaging to occur.
Surfacing, numbering: surfacing is carried out to double t plate formwork structures of the defect having quality, with special coagulation
Native healant is processed to concrete surface, makes repairing face and script color concrete surface reach aberration consistent.To there is no quality
Double t plate formwork structures of defect are numbered (such as numbering 20130806-01-aat-1: represent production on 08 06th, 2013, class
Organize as 01, plate number is aat-1).
Lifting, examination, stacking: will steadily should be lifted by crane using 4 points, before lifting, whether steel wire to be checked has during hoisting component
Leakage is cut, health of being stacked and watered after checking and accepting on inspection.
So far, completed using double t plates that large-span prestressed pair of t board construction method of New type weight loading of the present invention makes,
As shown in Figure 4.
Furthermore it is also possible to reach, by exchanging the location-plate of different length, the purpose changing girt strip variable cross-section, as Fig. 5 institute
Show, be the double t plates being fabricated to using the location-plate that length is more than horizontal ribs pressing plate.
The beneficial effect of the large-span prestressed pair of t board construction method of New type weight loading of the present invention is:
By large-span prestressed pair of t board construction method of the New type weight loading of the present invention in the application of engineering practice it is ensured that
The quality requirement of component and clear water sensorial effects, improve the manufacturing schedule of component simultaneously, are beneficial to factory's formula large-scale standardized
Produce, production cost greatly reduces, the production for similar component from now on provides compared with restricted publication of international news and commentary entitled experience, has higher finger
Lead meaning, be worth practical and promote.
The double t plates being made using large-span prestressed pair of t board construction method of the New type weight loading of the present invention, belong to new beam slab
In conjunction with precast reinforced clear-water concrete supporting member, be made up of roomy plate face and two narrow and high ribs.Its panel is
Transverse bearing structure, is the compressive region of longitudinal load-bearing rib again.Compressive region section is larger, and natural axis is proximal or into panel, tension
The again larger arm of force of main reinforcement.There is good structural mechanical property, weight capacity is strong, clear and definite power transmission level, and succinct is several
What shape, is a kind of large span, big area coverage, both economical supporting member.Overcome conventional t template component, load-bearing energy
Power is little, span is limited, the limiting factor of globality poor.
The double t plates being made using large-span prestressed pair of t board construction method of the New type weight loading of the present invention, as full assembled
The main supporting member of reinforced concrete structure, it is different from the traditional non-bearing type t template of construction market, and its construction features is
Span is big, no cross rib, and high capacity, girt strip width are big, wing plate is thin, lead to beneficial to factory's large-scale standardized production, template construct
With property is strong, production cost is relatively low, conventional belt horizontal termination rib non-bearing t template can be replaced.
Large-span prestressed pair of t board construction method of the New type weight loading of the present invention, combines Construction Technology of Fair Faced Concrete, elder generation
Method prestressing technique, overlength, super large combined steel formwork plate technique etc., become prefabricated assembled production and construction once audaciously
Information hierarchy, has the construction technology of larger dissemination.
The above is only presently preferred embodiments of the present invention, not the present invention is done with any pro forma restriction, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any is familiar with this professional technology people
Member, in the range of without departing from technical solution of the present invention, a little change or repaiies when the technology contents of available the disclosure above are made
Adorn the Equivalent embodiments for equivalent variations, as long as being the content without departing from technical solution of the present invention, the technology according to the present invention is real
Any simple modification, equivalent variations and modification that confrontation above example is made, all still fall within the scope of technical solution of the present invention
Interior.
Claims (9)
1. a kind of large-span prestressed pair of t board construction method of load-bearing is it is characterised in that include:
Double t plate formwork structures are provided, described pair of t plate formwork structure include in be provided with the typified form skeleton that double t types pour passage
It is connected to two girt strip Side Templates that described pair of t type pours passage two ends with closing, described girt strip Side Template includes horizontal ribs pressure
Plate, corresponding described pair of t type pour channel support in two vertical rib connecting plates of described horizontal ribs pressing plate bottom and detachably
It is connected to the location-plate of described vertical rib connecting plate bottom, described location-plate offers a plurality of tensioning for wearing reinforcing bar
Hole；
Long line arrangement is carried out to described pair of t plate formwork structure, in the corresponding described location-plate in the two ends of described pair of t plate formwork structure
Position arranges stretching bed seat；
Described pair of t plate formwork structure is carried out wearing muscle, reinforcing bar is passed through the tensioning hole on described location-plate, and in described pair of t plate
Arrangement reinforced mesh and built-in fitting on formwork structure；
By described stretching bed seat, prestressed stretch-draw is carried out to the reinforcing bar being located in described pair of t plate formwork structure；
After the prestressing force of described reinforcing bar reaches intensity requirement, pour in passage in double t types of described pair of t plate formwork structure and mixed
Solidifying soil pours；
After concreting finishes, maintenance is carried out to concrete；
After concrete curing finishes, described reinforcing bar is carried out put, reinforcing bar removes described pair of t plate formwork structure after putting, makes
Complete double t plates.
2. large-span prestressed pair of t board construction method of load-bearing as claimed in claim 1 is it is characterised in that described stretching bed seat
It is made up of with the tensioning pier being supported in below described load steelframe load steelframe, described load steelframe is by box bracket and crossbeam group
Become, described box bracket is fixed on described tensioning pier by built-in fitting.
3. large-span prestressed pair of t board construction method of load-bearing as claimed in claim 1 is it is characterised in that to described pair of t template die
Before hardened structure carries out wearing muscle, further comprise the steps of:
Described pair of t plate formwork structure is cleared up, and cleaning is carried out to the residue of residual on described pair of t plate formwork structure face and beat
Mill, to described pair of t plate formwork structure brushing stone wax releasing agent after cleaning out.
4. large-span prestressed pair of t board construction method of load-bearing as claimed in claim 1 is it is characterised in that described to being located in
When reinforcing bar in double t plate formwork structures carries out prestressed stretch-draw by described stretching bed seat, the prestress control of reinforcing bar is existed
95% to 105%.
5. large-span prestressed pair of t board construction method of the load-bearing as any one of Claims 1-4 it is characterised in that
Further comprise the steps of:
After concreting finishes, before treating concrete initial set, the process of first time hair light is carried out to the plate face of double t plate formwork structures；
Concrete is carried out before maintenance, second mao of light process is carried out to the plate face of double t plate formwork structures.
6. large-span prestressed pair of t board construction method of load-bearing as claimed in claim 1 is it is characterised in that described location-plate leads to
Cross bolt to be connected with described vertical rib connecting plate, described girt strip Side Template is connected with described typified form skeleton by bolt.
7. large-span prestressed pair of t board construction method of load-bearing as claimed in claim 1 is it is characterised in that described typified form
The position of the corresponding described location-plate in the outside of skeleton is reinforced with reinforcing square steel, and the outside of described typified form skeleton corresponds to described water
The position of flat rib pressing plate is reinforced with bearing diagonal, and described bearing diagonal bottom is reinforced with support base.
8. large-span prestressed pair of t board construction method of load-bearing as claimed in claim 1 is it is characterised in that described typified form
Skeleton includes being spliced to form described pair of t type and pours the panel of passage and be supported in the frame of described panels outside.
9. large-span prestressed pair of t board construction method of load-bearing as claimed in claim 8 is it is characterised in that add on described frame
Intrinsic floor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410708254.9A CN104453229B (en) | 2014-11-27 | 2014-11-27 | Large-span load-bearing prestress double-T plate construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410708254.9A CN104453229B (en) | 2014-11-27 | 2014-11-27 | Large-span load-bearing prestress double-T plate construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104453229A CN104453229A (en) | 2015-03-25 |
| CN104453229B true CN104453229B (en) | 2017-01-18 |
Family
ID=52899918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410708254.9A Active CN104453229B (en) | 2014-11-27 | 2014-11-27 | Large-span load-bearing prestress double-T plate construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104453229B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108136616B (en) * | 2015-10-20 | 2021-07-30 | 中央大学校产学协力团 | Precast prestressed concrete slab, manufacturing method thereof and precast prestressed concrete member manufacturing method |
| CN107327062A (en) * | 2016-10-14 | 2017-11-07 | 柳承志 | A kind of rib superimposed sheet of large-span prestressing force three |
| CN109138284A (en) * | 2018-09-30 | 2019-01-04 | 田间 | A kind of precast prestressed T plate and preparation method thereof with skylight |
| CN109113247A (en) * | 2018-09-30 | 2019-01-01 | 田间 | A kind of precast prestressed T plate of flooring and preparation method thereof |
| CN109291208B (en) * | 2018-10-29 | 2023-10-13 | 马鞍山钢铁建设集团有限公司 | Large-span prestressed concrete double-T-plate construction method |
| CN109914663A (en) * | 2019-02-22 | 2019-06-21 | 深汕特别合作区盛腾科技工业园有限公司 | A kind of precast prestressed T plate of flooring |
| CN109723184A (en) * | 2019-02-25 | 2019-05-07 | 上海城建建设实业(集团)有限公司 | Fragment integrated form T plate structure |
| CN110000893A (en) * | 2019-03-08 | 2019-07-12 | 深汕特别合作区盛腾科技工业园有限公司 | A kind of prestressing force double-T beam nomadic process units and method |
| CN110126061A (en) * | 2019-05-15 | 2019-08-16 | 平煤神马建工集团有限公司 | A kind of crack resistence T plate construction technology |
| CN111576711B (en) * | 2020-05-21 | 2021-06-01 | 上海建工四建集团有限公司 | Multilayer multi-span double-T-shaped plate structure and construction method thereof |
| CN113668395A (en) * | 2021-08-17 | 2021-11-19 | 中国建筑一局(集团)有限公司 | double-T-plate assembly joint-plugging-free construction method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2416177Y (en) * | 2000-04-21 | 2001-01-24 | 郁立方 | Prestressing concrete double-T Plate self stressing die |
| CN2777121Y (en) * | 2005-02-22 | 2006-05-03 | 刘大康 | Prestressed double T plate steel wire tension device |
| US20090293397A1 (en) * | 2008-05-27 | 2009-12-03 | Lytton John L | Load-Transfer Device For Reinforcing Concrete Structures |
| CN101481935B (en) * | 2009-01-20 | 2011-02-16 | 常州天普马鞍板有限公司 | Prestressed reinforcement concrete double T plate, tire shuttering thereof and production method |
| CN201592483U (en) * | 2009-08-08 | 2010-09-29 | 诸城市金源建材有限责任公司 | Movable double-T-plate production platform |
-
2014
- 2014-11-27 CN CN201410708254.9A patent/CN104453229B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104453229A (en) | 2015-03-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104453229B (en) | Large-span load-bearing prestress double-T plate construction method | |
| CN105345926B (en) | The precast construction method of prestressed concrete box girder | |
| CN204263314U (en) | Multifunction combined adjustable type T plate template system | |
| CN103615053B (en) | Monolithic reinforced concrete structure post empiricism engineering method | |
| CN106346595A (en) | Vertical molding mold and system and application method for concrete utility tunnel | |
| CN108638324A (en) | A kind of construction method of prefabricated case beam | |
| CN104924452A (en) | Tension pile splicing device for prestressed concrete solid square pile | |
| CN101830036A (en) | Concrete track slab prefabricating construction method of CRTS I type slab ballastless track | |
| CN105804410A (en) | Sub-cabin pressure grouting method for vertical connection of prefabricated concrete structure | |
| CN104372952A (en) | Unstressed permeating washing scabbling technology | |
| CN112663774A (en) | Construction method of unbonded prestressed large-diameter reinforced concrete thin-wall circular water tank | |
| CN104278841A (en) | Method for pouring concrete in steel pipe column | |
| CN102286988A (en) | Grouting shim plate construction method | |
| CN106437034A (en) | Steel tube and semi-prefabricated semi-cast-in-place construction waste recycled concrete combined column and preparation method thereof | |
| CN109648696A (en) | Side slope precast lattice beam of reinforcing bar connection and preparation method thereof and construction method | |
| CN103806659B (en) | Super thick prestressing force change-over panel individual layer comprehensively supports and splits temperature control construction technology with control | |
| CN114059654A (en) | Rapid construction method for improved AAO biological pond chamber jumping method of sewage treatment station | |
| CN104626354B (en) | Streetcar track plate manufacturing process | |
| CN110409600A (en) | Unit-combination type cesspool construction method | |
| CN110747762A (en) | Cement member crossing highway and its installation method | |
| CN110344844A (en) | A kind of track engineering section of track well construction method | |
| CN211974342U (en) | Floor slab reserved hole device with embedded bar planting holes | |
| CN205804745U (en) | A kind of precast concrete shear wall component | |
| CN107724241B (en) | Construction method for cable-stayed bridge deck auxiliary structure through counterweight construction | |
| CN204418691U (en) | A kind of for cast-in-place vertical member and horizontal member junction concrete blocking apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |