CN106592645A - Super-thick base plate post-cast strip formwork construction method - Google Patents
Super-thick base plate post-cast strip formwork construction method Download PDFInfo
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- CN106592645A CN106592645A CN201611207357.2A CN201611207357A CN106592645A CN 106592645 A CN106592645 A CN 106592645A CN 201611207357 A CN201611207357 A CN 201611207357A CN 106592645 A CN106592645 A CN 106592645A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
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Abstract
The invention provides a super-thick base plate post-cast strip formwork construction method. The method includes the technological processes that work of a post-cast strip base later is completed; a concrete slurry stopping strip is poured on a base plate externally-pasted water stopping belt; the first and second rows of reinforcing steel bars on the lower surface of a base plate are bound; a rapid and easy closing net is installed for blocking gaps between the reinforcing steel bars; a galvanized steel wire net is bond to plug small gaps between the rapid and easy closing net and the reinforcing steel bars; the third and fourth rows of reinforcing steel bars on the lower surface of the base plate are bound; a rapid and easy closing net is installed for binding the galvanized steel wire net; the overall adjustment of a system is strengthened; and acceptance check is carried out. By means of the method, the problem that a super-thick base plate post-cast strip is difficult to construct is solved, the post-cast strip formwork system is basically free of slurry leakage, formwork expanding and formwork shifting, the reinforcing steel bar and the rubber water stopping belt in the post-cast strip are not polluted, the construction quality of the post-cast strip is guaranteed, project delay and economical losses caused by post-cast strip structure cracking and leakage repairing in the past are avoided, and economic benefits are indirectly created.
Description
Technical field
The present invention relates to construction engineering technical field, specifically a kind of super thick bottom plate rear pouring tape template construction method.
Background technology
With economical growing, urban land resource day is becoming tight, and in recent years high-rise building builds at home number
Amount starts to increase, and the thickness and bar diameter of its sole plate, consumption are also increasing.Due to Super High high building and annex height
Difference is larger, and design is typically provided with pouring after settlement on the base plate of high building Yu annex junction, to avoid building from building
During produce differential settlement sole plate is damaged.The post-cast strip of Super High sole plate because depth is big, pass through
The reinforcing bar row of post-cast strip is more, operating space is narrow, is difficult to ensure that such post-cast strip is mixed in base plate by usual template construction technique
When solidifying soil is poured not spillage, do not rise and mould and run mould, and spillage, run after mould, the cleaning of concrete slurry is difficult between many placing of reinforcements.
The content of the invention
The technical assignment of the present invention is to solve the deficiencies in the prior art, there is provided a kind of super thick bottom plate rear pouring tape template construction side
Method.
Super thick bottom plate rear pouring tape template construction engineering method employs multinomial formwork construction technology, and its construction technology includes：
1st, cast-in-place concrete bar block pulp is adopted under the first placing of reinforcement of post-cast strip both sides base plate hypodermis, cushion block of concrete bar protective layer is also served as,
Fast-easy closing-up net is synchronously set with reinforcing bar colligation between many placing of reinforcements, the gap between many placing of reinforcements is intercepted, and is passed through in reinforcing bar
The position colligation galvanized steel wire netting closure small gap of fast-easy closing-up net, to ensure between many placing of reinforcements without spillage.
2nd, alter-pouring strips mould plate system is fast easy-to-closing in net stencil system, the template integral reinforcing mode installed on Steel bar rack：
On the inside of alter-pouring strips mould plate（Base plate intends casting concrete side, and following sections define same）The main reinforcing of welding split bolt
Mode, alter-pouring strips mould plate outside（Post-cast strip side, following sections define same）If steel pipe shores additional reinforcement mode, come
Ensure super thick bottom plate rear pouring tape template in concreting the overall mould that do not rise, do not run mould.
The technical scheme is that what is realized in the following manner, the technique of the super thick bottom plate rear pouring tape template construction method
Flow process includes：
Post-cast strip grass-roots work completes → on base plate external labeling type waterstop casting concrete block pulp bar → base plate hypodermis one,
Two placing of reinforcement colligations → installation fast-easy closing-up net, intercept the gap → colligation galvanized steel wire netting between reinforcing bar, and closure is fast easily
Small gap between closing in net and reinforcing bar → base plate hypodermis three, four placing of reinforcement colligations → installation fast-easy closing-up net, colligation plating
Hang on the Steel bar rack → Steel bar rack of fast-easy closing-up net between hypodermis reinforcing bar on zinc steel wire → → mounting base, tie up
Bundle fast-easy closing-up net → base plate epithelium n, n-1 placing of reinforcement colligation → installation fast-easy closing-up net, colligation galvanized steel wire netting →
Base plate epithelium n-2, n-3 placing of reinforcement colligation → installation fast-easy closing-up net, colligation galvanized steel wire netting → → base plate epithelium first
Placing of reinforcement colligation → installation fast-easy closing-up net, colligation galvanized steel wire netting → fast-easy closing-up net inner side welding split bolt and bottom
Slab muscle drawknot → fast-easy closing-up net outside arranges horizontal steel tube and vertical steel pipe → outside sets steel pipe and shores → reinforce
System integrated regulation → examination；
Wherein：
The installation of A, fast-easy closing-up net：
To avoid the placing of reinforcement of base plate hypodermis first and second and bottom cushion interface spillage, bleeding during concreting, stop in rubber
Water band paste finish, before base plate steel bar binding, first lateral middle does an elongated concrete block pulp bar on rubber water-proof band；It is mixed
Solidifying soil block pulp bar epithelium is concordant with the first and second placing of reinforcement hypodermis perpendicular to rubber fastening band, can stop concrete slurry from
Seepage in the range of thickness of protection tier, also serves as the placing of reinforcement protective layer cushion block of base plate first and second again；
Fast-easy closing-up net is installed must synchronously be carried out with base plate steel bar binding, i.e. one layer of reinforcing bar colligation, fast-easy closing-up net installs one
Layer；
To ensure the globality and seam not spillage of fast-easy closing-up net, fast-easy closing-up net seam crossing overlap joint；
Minimum with reinforcing bar handing-over position gap to ensure fast-easy closing-up net, installing fast-easy closing-up net must treat respective layer reinforcing bar colligation
After finishing, correspondence open and clear mouth in scene covers to reinforcing bar colligation and fixes；
Mortar in prevent concrete joins part leakage from fast-easy closing-up net and reinforcing bar, and every layer of fast-easy closing-up net is installed
And it is firm with base plate steel bar binding after, one layer of galvanized steel wire netting of colligation is installed again in its inner side, and blocking reinforcing bar passes through fast-easy closing-up net
The small gap of position, if fast-easy closing-up net itself has incomplete damaged or lap-joint's imprecision, is also blocked, plating with galvanized steel wire netting
Zinc steel wire is fixed preferential employing and is fixed with base plate steel bar binding, and then employing is fixed with fast-easy closing-up net colligation；
Fast-easy closing-up net needs to be arranged on Steel bar rack could be used as template system；In base plate hypodermis reinforcing bar and epithelium steel
Between muscle, because post-cast strip height is big, first welded and installed Steel bar rack, fast-easy closing-up net hangs colligation in the reinforcing bar for having installed
On support；Fast-easy closing-up net horizontal positioned, the lap of splice up and down >=50mm；
B, fast-easy closing-up net Steel bar rack are installed and reinforcing mode
B1, fast-easy closing-up net Steel bar rack：
Between base plate hypodermis reinforcing bar and epithelium reinforcing bar, the side elevation position of post-cast strip two installation Steel bar rack, fast-easy closing-up net is hung
If colligation is on Steel bar rack, the globality template of certain rigidity is formed with；
Fast-easy closing-up net Steel bar rack is using vertical applied force reinforcing bar and horizontal tectonics reinforcing bar composition, its position relationship and sequence of construction
For：Vertical reinforcement, in outside and vertical reinforcement colligation, forms steel bar stress net with base plate hypodermis reinforcement welding → horizontal reinforcement
→ fast-easy closing-up net level is hung on vertical reinforcement inner side, and finishes with vertical reinforcement colligation → base plate epithelium reinforcing bar colligation
Afterwards, then by vertical reinforcement and base plate epithelium reinforcement welding；Form the fast-easy closing-up net+Steel bar rack integral mold plate body without the need for form removal
System；
Set up the fast-easy closing-up net+Steel bar rack integral mold plate system without the need for form removal；
B2, split bolt drawknot and steel pipe shore reinforcing：
Split bolt drawknot and steel pipe shore reinforcement measure：Split bolt is set on the inside of fast easy-to-closing in net stencil system, one
End and baseplate reinforcing bar welding, the other end passes through fast-easy closing-up net and the vertical double steel pipe drawknot on the outside of it, used as main reinforcing mode；
Arrange steel pipe on the outside of fast easy-to-closing in net stencil system to shore, as additional reinforcement mode；The spacing of split bolt is by with height
The spacing arrangement of split bolt used by concrete wall template, is 600 ㎜～900 ㎜；
After post-cast strip side underplate concrete is poured, then when pouring opposite side underplate concrete, fast easy-to-closing in net stencil system
Reinforcing mode singly can be shored using the setting steel pipe on the outside of template, and steel tube end part withstands on post-cast strip opposite side and poured what is finished
In concrete side walls.
The produced compared with prior art beneficial effect of the present invention is：
The super thick bottom plate rear pouring tape template construction method is improved and innovated to conventional template construction technology, using in reinforcing bar
Bottom sets and set between concrete fin block pulp, many placing of reinforcements fast-easy closing-up net+galvanized steel wire netting caulking joint, fast-easy closing-up net+reinforcing bar
Rack template, split bolt drawknot+steel pipe shore the template integrated biological pond system of reinforcing, solve super thick bottom plate rear pouring tape and apply
The difficult problem of work, post empiricism quality is effectively ensured.
The method by the first placing of reinforcement divide into put fast-easy closing-up net between cast-in-place concrete block pulp bar, many placing of reinforcements,
The measures such as galvanized steel wire netting, it is difficult through easy spillage, closure hardly possible, cleaning many placing of reinforcements in post-cast strip to solve the problems, such as；Base plate
Fast-easy closing-up net+Steel bar rack template system is set between upper and lower skin reinforcing bar, is shored using split bolt drawknot+steel pipe and is added
Solid method, solves because post-cast strip depth is big, and larger lateral pressure is produced to alter-pouring strips mould plate when underplate concrete is poured, and easily goes out
Now rise mould, the problem of race mould.
Underplate concrete is poured after finishing, fast-easy closing-up net surface can self-assembling formation pitted skin, without the need for form removal and dabbing, also
Solve because reinforcing bar is intensive in post-cast strip, operate faciostenosis, the difficult problem of new, old concrete faying face dabbing.
Implement the method, super thick bottom plate rear pouring tape template construction quality is good, has reached following effect：
When underplate concrete is poured, the upper and lower skin of base plate is multiple rows of（More than 12 rows）Intensive reinforcing bar is through post-cast strip position without spillage；
Thickness up to 3.0m alter-pouring strips mould plate when underplate concrete is poured the overall mould that do not rise, do not run mould.
The method is applied to that thickness is big, reinforcing bar is intensive, the sole plate post-poured strip more than row, reinforcing strip and construction joint position
Template construction, the template construction of bottom plate rear pouring tape, reinforcing strip and construction joint position to general thickness is also suitable.
The difficult problem of super thick bottom plate rear pouring tape construction is this method solved, alter-pouring strips mould plate system rises without spillage, nothing substantially
Mould, occur without running mould situation, reinforcing bar and rubber fastening band are not affected by pollution in post-cast strip, it is ensured that post empiricism quality, keep away
Exempt from the past due to the construction delay and economic loss caused by late poured band structure cracking, seepage repairment, Jing has also been created indirectly
Ji benefit.
The super thick bottom plate rear pouring tape template construction method is reasonable in design, simple structure, it is safe and reliable, easy to use, be easy to
Safeguard, have good value for applications.
Specific embodiment
The super thick bottom plate rear pouring tape template construction method of the present invention is described in detail below below.
The technological process of the super thick bottom plate rear pouring tape template construction method of the present invention includes：
Post-cast strip grass-roots work completes → on base plate external labeling type waterstop casting concrete block pulp bar → base plate hypodermis one,
Two placing of reinforcement colligations → installation fast-easy closing-up net, intercept the gap → colligation galvanized steel wire netting between reinforcing bar, and closure is fast easily
Small gap between closing in net and reinforcing bar → base plate hypodermis three, four placing of reinforcement colligations → installation fast-easy closing-up net, colligation plating
Hang on the Steel bar rack → Steel bar rack of fast-easy closing-up net between hypodermis reinforcing bar on zinc steel wire → → mounting base, tie up
Bundle fast-easy closing-up net → base plate epithelium n, n-1 placing of reinforcement colligation → installation fast-easy closing-up net, colligation galvanized steel wire netting →
Base plate epithelium n-2, n-3 placing of reinforcement colligation → installation fast-easy closing-up net, colligation galvanized steel wire netting → → base plate epithelium first
Placing of reinforcement colligation → installation fast-easy closing-up net, colligation galvanized steel wire netting → fast-easy closing-up net inner side welding split bolt and bottom
Slab muscle drawknot → fast-easy closing-up net outside arranges horizontal steel tube and vertical steel pipe → outside sets steel pipe and shores → reinforce
System integrated regulation → examination；
Wherein：
The installation of A, fast-easy closing-up net：
1st, to avoid base plate hypodermis the 1st during concreting（2）Placing of reinforcement and bottom cushion interface spillage, bleeding, in rubber
Waterstop paste finish, before base plate steel bar binding, first lateral middle is a 100mm on rubber water-proof band（It is wide）×50（90）
mm（It is high）Elongated concrete block pulp bar.Concrete block pulp article epithelium with perpendicular to the 1st of rubber fastening band（2）Placing of reinforcement hypodermis is put down
Together, i.e., the high 50mm in one direction is thickness of protection tier, and the high 90mm in another direction is that the placing of reinforcement of protective layer thickness+the 1 is straight
Footpath, can stop concrete slurry seepage from the range of thickness of protection tier, and base plate the 1st is also served as again（2）Placing of reinforcement protective layer
Cushion block.
2nd, because baseplate reinforcing bar is close and many through the row of post-cast strip, fast-easy closing-up net installs necessary and base plate steel bar binding
Synchronously carry out, i.e. one layer of reinforcing bar colligation, fast-easy closing-up net installs one layer.To ensure that the globality and seam of fast-easy closing-up net are not leaked
Slurry, fast-easy closing-up net seam crossing must be overlapped, and for ease of reinforcing bar colligation construction, determine that monolithic fast-easy closing-up net setting height(from bottom) is 3d
（D is baseplate reinforcing bar diameter）, the adjacent two panels lap of splice of fast-easy closing-up net is up and down 1d, the left and right lap of splice >=50mm,
Bottom sheet it is interior, upper piece outside, finished product sheet fast-easy closing-up net tinsmith snips are cut into the small pieces of desired height and use.Most egative film iron
Skin is cut into gap, insertion concrete block pulp bar inner side.
3rd, minimum to ensure fast-easy closing-up net and reinforcing bar handing-over position gap, installing fast-easy closing-up net must treat reinforcing bar（It is right
Answer layer）After colligation is finished, correspondence open and clear mouth in scene covers to reinforcing bar colligation and fixes.
4th, to prevent concrete in mortar from fast-easy closing-up net and reinforcing bar handing-over part leakage, every layer of fast-easy closing-up net peace
Install finish and it is firm with base plate steel bar binding after, one layer of galvanized steel wire netting of colligation is installed again in its inner side, blocking reinforcing bar through it is fast easily
Close up and net the small gap of position, if fast-easy closing-up net itself has incomplete damaged or lap-joint's imprecision, also using galvanized steel wire netting
Blocking, galvanized steel wire netting fixes preferential using fixing with base plate steel bar binding, and then using fixing with fast-easy closing-up net colligation.
5th, fast-easy closing-up net is used as form surfacing, the low intensity of itself, and yielding, needs to be arranged on Steel bar rack
On could use as template system.Between base plate hypodermis reinforcing bar and epithelium reinforcing bar, because of post-cast strip height greatly, it is necessary to first weld
Steel bar rack is installed（Refer to the 1st section of the 5.2.2 article）, fast-easy closing-up net hangs colligation on the Steel bar rack for having installed.
Fast-easy closing-up net horizontal positioned, the lap of splice up and down >=50mm.
B, fast-easy closing-up net Steel bar rack are installed and reinforcing mode：
For the sole plate post-poured strip of high-rise building, general thickness is big, and baseplate reinforcing bar diameter is thick, spacing is little and row
Many, if if formwork reinforcement a bit deficient in, it will rise mould, race mould phenomenon occur, the concrete being compromised is filled and filled out, cleared up by post-cast strip
It is extremely difficult, or even cannot clear up, structure is impacted safely.Therefore it is to the reinforcing mode of fast easy-to-closing in net stencil system
One of very important measure of this engineering method.
B1, fast-easy closing-up net Steel bar rack：
To ensure the rigidity and globality of fast easy-to-closing in net stencil system, and facilitate the installation of fast-easy closing-up net, in base plate hypodermis
Between reinforcing bar and epithelium reinforcing bar, the side elevation position of post-cast strip two Steel bar rack is installed, fast-easy closing-up net hangs colligation in reinforcement bar support
On frame, the globality template of certain rigidity is formed with.
Fast-easy closing-up net Steel bar rack is using B18mm@200mm vertical applied forces reinforcing bars and B12mm@350mm horizontal tectonics steel
Muscle is constituted, and its position relationship and sequence of construction are：B18 vertical reinforcements exist with base plate hypodermis reinforcement welding → B12 horizontal reinforcements
Outside and B18 vertical reinforcement colligations, form steel bar stress net → fast-easy closing-up net level and are hung on B18 vertical reinforcements inner side,
And after finishing with B18 vertical reinforcements colligation → base plate epithelium reinforcing bar colligation, then by B18 vertical reinforcements and base plate epithelium steel bar welding
Connect.Form the fast-easy closing-up net+Steel bar rack integral mold plate system without the need for form removal.
B2, split bolt drawknot and steel pipe shore reinforcing：
Because the height between the upper and lower skin reinforcing bar of base plate is big, fast-easy closing-up net+Steel bar rack template system is insufficiently resistant to super thick
The lateral pressure produced when underplate concrete is poured, it is necessary to increase reliable reinforcement measure.But post-cast strip width is general all very
It is narrow, it is single using generally single steel pipe support top reinforcing mode, it is difficult to meet template force request, the reinforcing that this engineering method is taken
Measure is：Split bolt is set on the inside of fast easy-to-closing in net stencil system, and one end is welded with baseplate reinforcing bar, the other end is through soon easily
Closing in net and the vertical double steel pipe drawknot on the outside of it, as main reinforcing mode；Steel is set on the outside of fast easy-to-closing in net stencil system
Pipe is shored, used as additional reinforcement mode.The spacing of split bolt is as used by same height concrete wall template between split bolt
Away from arrangement, usually 600 ㎜～900 ㎜.
After post-cast strip side underplate concrete is poured, then when pouring opposite side underplate concrete, fast easy-to-closing in net stencil
System reinforcing mode singly can be shored using the setting steel pipe on the outside of template, and steel tube end part withstands on post-cast strip opposite side and poured
In complete concrete side walls.
Fast easy-to-closing in net stencil system reinforcing mode typical case：
Case high-rise building, base plate thickness is 3m, and post-cast strip width is 1000mm, and base plate hypodermis is through the reinforcing bar of post-cast strip
12 row C40@150 ㎜.Underplate concrete first pours the alter-pouring strips mould plate reinforcing mode of side：
1st, on the outside of fast-easy closing-up net Steel bar rack, four road A48mm × 3.5mm levels are uniformly arranged on base plate between hypodermis reinforcing bar
Double steel pipe (corresponding with the road number of split bolt), level interval is 600mm.
2nd, on the outside of horizontal steel tube bar, the vertical double steel pipes of A48mm × 3.5mm are set, level interval is 900mm.
The 3rd, the split bolt of four road A12mm is set on the inside of fast-easy closing-up net, and split bolt cloth sets up an office as level pair steel
The intersection point of pipe and vertical double steel pipe, i.e. b × h=900mm × 600mm.Split bolt one end is passed through after fast-easy closing-up net, by 3
Shape fastener and vertical double steel pipe drawknot, the other end（For material-saving, can be welded with lag bolt using B12mm reinforcing bars）It is downward-sloping
With baseplate reinforcing bar firm welding.
4th, in post-cast strip, most top split bolt position together with most bottom respectively arranges steel pipe diagonal brace together, steel pipe diagonal brace water
Flat spacing holds in the palm support and vertical steel pipe top jail with vertical double steel pipe, one end by adjustable, and the other end is firm with Bottom Board Steel top rib.
5th, most go up in base plate and set on the outside of a placing of reinforcement epithelium, fast-easy closing-up net pressure mouth flitch.
The alter-pouring strips mould plate reinforcing mode of underplate concrete after-pouring side is：
Finish because post-cast strip side underplate concrete is poured, when carrying out the reinforcing of opposite side fast easy-to-closing in net stencil system, can
It is supported as fulcrum by the use of the concrete side walls for first pouring side.
1st, on the outside of fast-easy closing-up net Steel bar rack, four road A48mm × 3.5mm is uniformly arranged on base plate between hypodermis reinforcing bar
Horizontal steel tube, level interval is 600mm.
2nd, on the outside of horizontal steel tube, the vertical double steel pipes of A48mm × 3.5mm are set, level interval is 900mm.
3rd, a horizontal steel tube support is set in horizontal steel tube and each intersection location of vertical double steel pipe, one end is by adjustable support
Support and vertical double steel pipe top jail, the other end and concrete side walls top jail（Contact surface cushioning flitch）.
Material：
Coagulation local product is using the concrete with base plate ad eundem；
Fast easy-to-closing thickness of net answers >=0.30mm（Different thickness may be selected depending on different engineerings, different parts）, material is hot dipping
Galvanized steel plain sheet, the processed finished product fast-easy closing-up net for becoming unidirectional U-shaped close rib support and unidirectional stereoscopic grid.
Galvanized steel wire netting is using net footpath≤2mm × 2mm, the galvanized steel wire netting of string diameter 0.17mm；
Colligation silk adopts 22# galvanized wires；
The a diameter of 12mm of split bolt, with " 3 " shape fastener or chevron fastener and matched nut；
Supporting steel pipe is equipped with adjustable support support using A48mm × 3.5mm steel pipes and fastener（Also referred to as U-shaped rest）；
Chock is supported to adopt 100mm × 100mm flitches, pressure mouth flitch to adopt 50mm × 100mm flitches；
Fast-easy closing-up net Steel bar rack adopts HRB335 reinforcing bars, a diameter of 18mm, 12mm；
Welding rod model E5003.
Equipment：
Concreting instrument：Tower crane and hopper, spade, trowel；
Fast-easy closing-up net, steel wire processing, installation tool：Tinsmith snips, Reinforced hook；
Steel bar meter, installation tool：Bar cropper, angle-bender, Reinforced hook, electric welding machine, toothless saw；
Steel pipe support installation tool：Spanner；
Flitch processes installation tool：Log splitter, electric planer machine, hammer, ink fountain（Line-snapping device）.
Form work engineering quality is in accordance with national standard《Concrete structure engineering is constructed and acceptance specification》GB50204-2002.
Support system and annex are installed must firmly, non-loosening phenomenon, and fast-easy closing-up net and steel wire are tight-closed, should not
Spillage, the mould that do not rise, mould is not run.
Using slide measure to its thickness and diameter inspection when the important materials such as fast-easy closing-up net, finished product split bolt are carried out
Check and accept, wherein the thickness of fast-easy closing-up net does not allow negative error occur, the internal diameter tolerance of split bolt is ± 0.4mm.
There is spillage because deformation is excessive when underplate concrete is poured to prevent the fast-easy closing-up net between many placing of reinforcements,
After fast-easy closing-up net between base plate hypodermis reinforcing bar is installed, in baseplate reinforcing bar space, it is close to be inserted on the outside of fast-easy closing-up net
Enter B12 bar dowels, bar dowel and baseplate reinforcing bar firm welding.
Find that fast-easy closing-up net, if any incomplete, damaged, seam imprecision, should mend eye using galvanized steel wire netting in work progress
Closure, it is ensured that not spillage.
Split bolt is welded with baseplate reinforcing bar, and bolt is connected reinforcement welding with substituting, its weld length >=10d（D is
The diameter of bolt）, weld seam is uniform full, it is ensured that solder joint does not snap during concreting.
The stud upper and lower end of fast-easy closing-up net Steel bar rack is connected with baseplate reinforcing bar wants firm welding, if stud and base plate
Reinforcing bar does not push up jail, can be further added by an elongated horizontal reinforcement with baseplate reinforcing bar junction（Same baseplate reinforcing bar）With stud outside
Top jail, and all welding or colligation are firm with the intersection point of baseplate reinforcing bar by increased elongated horizontal reinforcement.
The split bolt being connected with the outer edge-on steel pipe of fast-easy closing-up net, below twice bolt " 3 " shape fastener and fasten spiral shell
Mother is respectively mounted double fastener, double nuts, to avoid connector quality of materials unqualified, causes split bolt to pull with nut or incite somebody to action
" 3 " shape fastener draws bad.
Environmental practice：Construction technology material therefor and construction equipment will not produce the pollution such as dust, noise, for construction
During the rubbish such as produced leftover bits and pieces, collect in time in construction, cleaning, live specified location is stacked, generation is built
Building refuse timing cleaning appears on the scene.
Claims (4)
1. super thick bottom plate rear pouring tape template construction method, it is characterised in that the technological process of the method includes：
Post-cast strip grass-roots work completes → on base plate external labeling type waterstop casting concrete block pulp bar → base plate hypodermis one,
Two placing of reinforcement colligations → installation fast-easy closing-up net, intercept the gap → colligation galvanized steel wire netting between reinforcing bar, and closure is fast easily
Small gap between closing in net and reinforcing bar → base plate hypodermis three, four placing of reinforcement colligations → installation fast-easy closing-up net, colligation plating
Hang on the Steel bar rack → Steel bar rack of fast-easy closing-up net between hypodermis reinforcing bar on zinc steel wire → → mounting base, tie up
Bundle fast-easy closing-up net → base plate epithelium n, n-1 placing of reinforcement colligation → installation fast-easy closing-up net, colligation galvanized steel wire netting →
Base plate epithelium n-2, n-3 placing of reinforcement colligation → installation fast-easy closing-up net, colligation galvanized steel wire netting → → base plate epithelium first
Placing of reinforcement colligation → installation fast-easy closing-up net, colligation galvanized steel wire netting → fast-easy closing-up net inner side welding split bolt and bottom
Slab muscle drawknot → fast-easy closing-up net outside arranges horizontal steel tube and vertical steel pipe → outside sets steel pipe and shores → reinforce
System integrated regulation → examination.
2. super thick bottom plate rear pouring tape template construction method, it is characterised in that the technological process of the method includes：
Post-cast strip grass-roots work completes → on base plate external labeling type waterstop casting concrete block pulp bar → base plate hypodermis one,
Two placing of reinforcement colligations → installation fast-easy closing-up net, intercept the gap → colligation galvanized steel wire netting between reinforcing bar, and closure is fast easily
Small gap between closing in net and reinforcing bar → base plate hypodermis three, four placing of reinforcement colligations → installation fast-easy closing-up net, colligation plating
Hang on the Steel bar rack → Steel bar rack of fast-easy closing-up net between hypodermis reinforcing bar on zinc steel wire → → mounting base, tie up
Bundle fast-easy closing-up net → base plate epithelium n, n-1 placing of reinforcement colligation → installation fast-easy closing-up net, colligation galvanized steel wire netting →
Base plate epithelium n-2, n-3 placing of reinforcement colligation → installation fast-easy closing-up net, colligation galvanized steel wire netting → → base plate epithelium first
Placing of reinforcement colligation → installation fast-easy closing-up net, colligation galvanized steel wire netting → fast-easy closing-up net inner side welding split bolt and bottom
Slab muscle drawknot → fast-easy closing-up net outside arranges horizontal steel tube and vertical steel pipe → outside sets steel pipe and shores → reinforce
System integrated regulation → examination；
Wherein：
The installation of A, fast-easy closing-up net：
To avoid the placing of reinforcement of base plate hypodermis first and second and bottom cushion interface spillage, bleeding during concreting, stop in rubber
Water band paste finish, before base plate steel bar binding, first lateral middle does an elongated concrete block pulp bar on rubber water-proof band；It is mixed
Solidifying soil block pulp bar epithelium is concordant with the first and second placing of reinforcement hypodermis perpendicular to rubber fastening band, can stop concrete slurry from
Seepage in the range of thickness of protection tier, also serves as the placing of reinforcement protective layer cushion block of base plate first and second again；
Fast-easy closing-up net is installed must synchronously be carried out with base plate steel bar binding, i.e. one layer of reinforcing bar colligation, fast-easy closing-up net installs one
Layer；
To ensure the globality and seam not spillage of fast-easy closing-up net, fast-easy closing-up net seam crossing overlap joint；
Minimum with reinforcing bar handing-over position gap to ensure fast-easy closing-up net, installing fast-easy closing-up net must treat respective layer reinforcing bar colligation
After finishing, correspondence open and clear mouth in scene covers to reinforcing bar colligation and fixes；
Mortar in prevent concrete joins part leakage from fast-easy closing-up net and reinforcing bar, and every layer of fast-easy closing-up net is installed
And it is firm with base plate steel bar binding after, one layer of galvanized steel wire netting of colligation is installed again in its inner side, and blocking reinforcing bar passes through fast-easy closing-up net
The small gap of position, if fast-easy closing-up net itself has incomplete damaged or lap-joint's imprecision, is also blocked, plating with galvanized steel wire netting
Zinc steel wire is fixed preferential employing and is fixed with base plate steel bar binding, and then employing is fixed with fast-easy closing-up net colligation；
Fast-easy closing-up net needs to be arranged on Steel bar rack could be used as template system；In base plate hypodermis reinforcing bar and epithelium steel
Between muscle, because post-cast strip height is big, first welded and installed Steel bar rack, fast-easy closing-up net hangs colligation in the reinforcing bar for having installed
On support；Fast-easy closing-up net horizontal positioned, the lap of splice up and down >=50mm；
B, fast-easy closing-up net Steel bar rack are installed and reinforcing mode
B1, fast-easy closing-up net Steel bar rack：
Between base plate hypodermis reinforcing bar and epithelium reinforcing bar, the side elevation position of post-cast strip two installation Steel bar rack, fast-easy closing-up net is hung
If colligation is on Steel bar rack, the globality template of certain rigidity is formed with；
Set up the fast-easy closing-up net+Steel bar rack integral mold plate system without the need for form removal；
B2, split bolt drawknot and steel pipe shore reinforcing.
3. super thick bottom plate rear pouring tape template construction method according to claim 2, it is characterised in that：B1, fast-easy closing-up net
Steel bar rack is constituted using vertical applied force reinforcing bar with horizontal tectonics reinforcing bar, and its position relationship and sequence of construction are：Vertical reinforcement with
Base plate hypodermis reinforcement welding → horizontal reinforcement forms steel bar stress net → fast-easy closing-up net in outside and vertical reinforcement colligation
Level is hung on vertical reinforcement inner side, and after finishing with vertical reinforcement colligation → base plate epithelium reinforcing bar colligation, then by vertical steel
Muscle and base plate epithelium reinforcement welding；Form the fast-easy closing-up net+Steel bar rack integral mold plate system without the need for form removal.
4. super thick bottom plate rear pouring tape template construction method according to claim 2, it is characterised in that：B2, split bolt draw
Knot and steel pipe shore reinforcement measure and are：Split bolt is set on the inside of fast easy-to-closing in net stencil system, and one end is welded with baseplate reinforcing bar
Connect, the other end passes through fast-easy closing-up net and the vertical double steel pipe drawknot on the outside of it, used as main reinforcing mode；In fast-easy closing-up net mould
Plate body system outside arranges steel pipe and shores, used as additional reinforcement mode；The spacing of split bolt is pressed with height concrete wall template
The spacing arrangement of split bolt used, is 600 ㎜～900 ㎜；
After post-cast strip side underplate concrete is poured, then when pouring opposite side underplate concrete, fast easy-to-closing in net stencil system
Reinforcing mode singly can be shored using the setting steel pipe on the outside of template, and steel tube end part withstands on post-cast strip opposite side and poured what is finished
In concrete side walls.
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| CN201611207357.2A CN106592645A (en) | 2016-12-23 | 2016-12-23 | Super-thick base plate post-cast strip formwork construction method |
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| CN201611207357.2A CN106592645A (en) | 2016-12-23 | 2016-12-23 | Super-thick base plate post-cast strip formwork construction method |
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| CN107354955A (en) * | 2017-06-30 | 2017-11-17 | 成都建筑工程集团总公司 | Super thick structural slab plate bottom and the construction method of side form support system |
| CN109577377A (en) * | 2018-11-29 | 2019-04-05 | 成都建工第二建筑工程有限公司 | Basement post-pouring zone structure and its construction method |
| CN111441577A (en) * | 2020-04-17 | 2020-07-24 | 中建一局集团第一建筑有限公司 | Reinforcing structure and method for ultra-thick cantilever plate side mold |
| CN111910922A (en) * | 2020-07-31 | 2020-11-10 | 中国建筑第二工程局有限公司 | Curved ultra-flat ground formwork support connection structure and construction method thereof |
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