CN107237438A - Self-positioning anti-floating Prefabricated composite case mould and its application method for large span hollow floor - Google Patents

Self-positioning anti-floating Prefabricated composite case mould and its application method for large span hollow floor Download PDF

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Publication number
CN107237438A
CN107237438A CN201710508295.7A CN201710508295A CN107237438A CN 107237438 A CN107237438 A CN 107237438A CN 201710508295 A CN201710508295 A CN 201710508295A CN 107237438 A CN107237438 A CN 107237438A
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CN
China
Prior art keywords
floating
bed die
case mould
mould
positioning
Prior art date
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Pending
Application number
CN201710508295.7A
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Chinese (zh)
Inventor
吴二军
王秀哲
陈现通
张伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Zhixinda Building Technology Co Ltd
Hohai University HHU
Original Assignee
Jiangsu Zhixinda Building Technology Co Ltd
Hohai University HHU
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangsu Zhixinda Building Technology Co Ltd, Hohai University HHU filed Critical Jiangsu Zhixinda Building Technology Co Ltd
Priority to CN201710508295.7A priority Critical patent/CN107237438A/en
Publication of CN107237438A publication Critical patent/CN107237438A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/36Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor

Abstract

The present invention proposes a kind of self-positioning anti-floating Prefabricated composite case mould and its application method for large span hollow floor;Case mould is made up of precast concrete groove profile bed die with light filling block;The case mould is poured for large span hollow floor girt strip;The case mould is fixed with a steel bed die by an anti-floating system before pouring;Anti-floating system and steel bed die are removed after pouring.The present invention can quickly realize the high accuracy positioning of case mould and spacing, and anti-floating problem is solved at all.Dual face strengthened adhesive tape positioning and resisting flotation need not be applied, template is readily removable to be removed.Except first processing dedicated templates cost it is higher in addition to, the construction parts in addition to Prefabricated composite case mould are reusable, easy construction, and cost can substantially be reduced with the increase of the number of turnover.This is a significant technological progress for large span hollow floor system, in the case where the engineering structures such as current longspan structure, underground garage are more and more, there is significant market application foreground.

Description

For large span hollow floor self-positioning anti-floating Prefabricated composite case mould and its use Method
Technical field
Present invention relates particularly to a kind of self-positioning anti-floating Prefabricated composite case mould for large span hollow floor and its use Method, is mainly used in the large span hollow-ribbed floor of prefabricated equipment formula, belongs to civil engineering new product and its construction field.
Background technology
Large-span cast-in-situ hollow-ribbed floor gradually grows up in China from early 1990s, because it is good Service behaviour, is applied more than ten million square meter so far.In early stage large span hollow floor system, hollow box mould is generally used Lower assembling reinforcement net, the way of casting concrete;To avoid underplate concrete from vibrating leakiness, generally punched in the middle part of case mould, But in actual mechanical process, still suffer from larger difficulty of construction, construction quality poor controllability.During vibrating, vibrating head Easily rupture case mould, crush, mortar is penetrated into case mould, influence the ratio of mud of concrete.Because case mould weight is lighter, Workman is during construction, and case mould is easy to float, misplaced, and causes the concreting of girt strip uneven, so that girt strip Discontinuity, or even leave potential safety hazard.
The beginning of this century, a kind of combined type of use precast box baffle plate, which exempts to tear hollow or lightweight case mould open, to be developed, and is had Body way is that prefabricated bottom plate, top plate and girt strip are cast-in-place.This way is in order to prevent prefabricated molds from moving, using high-strength double sided foam glue Precast box baffle plate is pasted onto on the bed die of bottom by band, is played fixed case mould position, anti-floating and is prevented race when girt strip is poured Starch phenomenon.This way is when sticking Quality is poor, and case mould can produce dislocation;When sticking Quality is good, when being firmly bonded, floor is poured Form removal is difficult after the completion of building, and is stained bed die, pouring quality when influence is subsequently reused;When using concrete floor, side When plate, hollow group of top plate formation and case mould, the globality of case mould need to take measures.When using directly plus light on concrete floor During material, anti-floating problem is difficult final result, and generally using structure glue is used in advance, its complex process degree and cost are all Rise.
Up to now, in the construction of assembled integral large span hollow floor, the problems such as the positioning of Prefabricated composite case mould, anti-floating It is still to influence the key issue of construction quality and cost.
The content of the invention
For above-mentioned technical problem, the present invention provides a kind of self-positioning anti-floating Prefabricated composite for large span hollow floor Case mould and its application method.
First, the present invention proposes a kind of self-positioning anti-floating Prefabricated composite case mould for large span hollow floor;
The case mould is made up of precast concrete groove profile bed die with light filling block;Through concrete groove profile bed die provided with cone Shape positioning hole, in the anti-floating screw hole for being drilled with correspondence taper positioning hole on light filling block in advance.
It is preferred that, the lower port diameter of the taper positioning hole is between 25-50mm, and back cut diameter is more than or equal to 6mm;Cone The number of shape positioning hole is 4-9.
It is preferred that, anti-floating screw hole is vertically arranged with taper positioning hole;The lower aperture of anti-floating screw hole and concrete pit The upper orifice position of taper positioning hole in type bed die, size are identical, after both are adapted to, the lower aperture of anti-floating screw hole and taper Maximum horizontal skew between the upper aperture of positioning hole is dynamic less than or equal to 3mm.
Secondly, the invention also provides a kind of making for self-positioning anti-floating Prefabricated composite case mould for large span hollow floor Use method;
The case mould is poured for large span hollow floor girt strip;The case mould and a steel bed die are passed through into primary antibody before pouring Floating device is fixed;Anti-floating system and steel bed die are removed after pouring.
It is preferred that, case mould is installed on steel bed die first, and steel bed die is provided with taper positioning pipe, both case mould and steel bed die Taper positioning pipe is embedded in taper positioning hole after positioning, and then light filling block is placed on concrete groove profile bed die, is used The anti-floating system of the spacing plank of long bolt, anti-floating, anchoring backing plate and nut composition is fixed;Fix and poured after finishing, it is to be poured Completion is built, conserves and reaches design strength, steel bed die and anti-floating system is removed.
Further, anchor is revolved on the spacing plank of anti-floating in the long bolt upper end, the spacing plank laminating light filling block Upper surface;The anchoring backing plate, which is passed through by the lower end of the long bolt and the taper is brought into close contact after being fixed by nut, to be determined The lower discharge surface of position pipe.
Further, being more than with joint efforts for the anchoring pulling force on same case mould between all long bolts and the spacing plank of anti-floating pours Buoyancy when building concrete suffered by combination box mould.
Further, the length of steel bed die is at least across girt strip and thereon at least provided with two taper positioning pipes;Polylith steel bottom Die combination is in use, square mould close-packed arrays, square mould diamond array and bar shaped mould polylith assembled arrangement pattern can be used.
In the application method of precast box mould:
Taper positioning hole is opened up on the concrete grooved bottom board of Prefabricated composite case mould, taper is carried using matching The special-purpose steel bed die of positioning pipe is used as the bed die for pouring girt strip.The taper positioning of taper positioning hole inner wall shape size and steel bed die Pipe is consistent, and therefore, precast concrete grooved bottom board can be positioned directly on steel bed die.
The problem of in order to avoid using globality poor when side plate, top plate are combined, the present invention is light from adding immediately above The way of matter filling block.Light filling block is moved on concrete groove profile bed die by raised side wall limit levels, but still can It can float, therefore using positioning long bolt, directly through the taper positioning pipe on steel bed die, be anchored at nut on steel bed die. This way, reliability of positioning is high, easy construction, later stage case mould and steel bed die soap-free emulsion polymeization, readily removable to remove.
The top of light filling block carries out anti-floating, spacing plank thickness about 5-10mm, and long bolt by spacing plank Anchoring ability be slightly larger than girt strip casting concrete buoyancy.Spacing plank can use waste and old plank sheathing, and cost is low, Remove long bolt also more convenient.
Beneficial effects of the present invention:The high accuracy positioning of case mould can quickly be realized and spacing, during girt strip is poured, Stability is good, and anti-floating problem is solved at all.Dual face strengthened adhesive tape positioning and resisting flotation need not be applied, template is readily removable to be removed.Except first plus Work dedicated templates cost is higher outer, and the construction parts in addition to Prefabricated composite case mould are reusable, and easy construction, cost can Substantially reduced with the increase of the number of turnover.This is a significant technological progress for large span hollow floor system, In the case where the engineering structures such as current longspan structure, underground garage are more and more, there is significant market application foreground.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, makes required in being described below to embodiment Accompanying drawing is briefly described.
Fig. 1 is self-positioning anti-floating combination box mould profile;
Fig. 2 is combination box mould top view;
Fig. 3 is combination box mould scheme of installation;
Fig. 4-1, Fig. 4-2 and Fig. 4-3 are the distribution of combination box mould and steel bed die integrated mode schematic diagram.Wherein:
1st, concrete groove profile bed die 2, light filling block 3, taper positioning hole,
4th, anti-floating screw hole 5, steel bed die 6, taper positioning pipe 7, long bolt
8th, the spacing plank 9 of anti-floating, anchoring backing plate 10, nut.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described.
Shown in Fig. 1 to 4, case mould is made up of precast concrete groove profile bed die 1 and light filling block 2;Through concrete groove profile Bed die 1 is provided with taper positioning hole 3, in the anti-floating screw hole 4 for being drilled with correspondence taper positioning hole 3 on light filling block 2 in advance.It is described The lower port diameter of taper positioning hole 3 is between 25-50mm, and back cut diameter is more than or equal to 6mm;The number of taper positioning hole 3 is 4-9, select according to actual needs.Anti-floating screw hole 4 is vertically arranged with taper positioning hole 3;The lower opening of anti-floating screw hole 4 Mouthful and the upper orifice position of the taper positioning hole 3 in concrete groove profile bed die 1, size it is identical, after both adaptations, anti-floating screw hole Maximum horizontal skew between 4 lower aperture and the upper aperture of taper positioning hole 3 is dynamic less than or equal to 3mm.The case mould is used for big Span hollow floor girt strip is poured;The case mould is fixed with a steel bed die 5 by an anti-floating system before pouring;Removed after pouring Anti-floating system and steel bed die 5.
Case mould is installed on steel bed die 5 first, and steel bed die 5 is provided with taper positioning pipe 6, and both case mould and steel bed die 5 are fixed Taper positioning pipe 6 is embedded in taper positioning hole 3 behind position, and then light filling block 2 is placed on concrete groove profile bed die 1, The anti-floating system constituted with long bolt 7, the spacing plank 8 of anti-floating, anchoring backing plate 9 and nut 10 is fixed;Fix and poured after finishing Build, wait to pour completion, conserve and reach design strength, remove steel bed die 5 and anti-floating system.
Anchor is revolved on the spacing plank 8 of anti-floating in the upper end of long bolt 7, and spacing plank 8 is fitted the upper of the light filling block 2 Surface;The anchoring backing plate 9, which is passed through by the lower end of the long bolt 7 and is brought into close contact the taper after being fixed by nut 10, to be determined The lower discharge surface of position pipe 6.
Pour anchoring pulling force on same case mould between all long bolts 7 and the spacing plank 8 of anti-floating with joint efforts to be more than mixed Buoyancy during solidifying soil suffered by combination box mould.
The length of steel bed die 5 is at least across girt strip and thereon at least provided with two taper positioning pipes 6;8 groups of polylith steel bed die Close in use, square mould close-packed arrays, square mould diamond array and bar shaped mould polylith assembled arrangement pattern can be used.
Embodiment:
Construction Principle and method:At the scene according to design attitude branch steel bed die 5, steel bed die 5 may be designed to different shape, such as Square, octagonal, bar (square) shape shown in Fig. 4-1,4-2 and 4-3, are carried out assembled.Then by prefabricated concrete groove profile The arrangement of bed die 1 is arranged on steel bed die 5, then the taper positioning hole 3 on precast concrete groove profile bed die 1 is nested in steel bed die 5 On taper positioning pipe 6.
The light filling block 2 for being drilled with anti-floating screw hole 4 in advance is placed on groove profile bed die 1,2 shapes of light filling block In the groove that concrete groove profile bed die 1 should be able to be caught in.
By the spacing plank 8 of upper end precession anti-floating of long bolt 7, lower end passes through vertical anti-floating screw hole 4, taper positioning hole 3 With taper positioning pipe 6, the lower section of steel bed die 5 is extended, it is assumed that one piece of anchoring backing plate 9, anchoring is tightened with nut 10.Tighten the energy of nut 10 Feel there is obvious pulling force, unavailable spanner strength is tightened, and this will cause anchor of the long bolt 7 on the spacing plank 8 of anti-floating Gu destroy and extract.
After whole case mould positioning and anchorings, you can colligation girt strip and roof steel bar, girt strip concrete and concrete roof are poured. Maintenance is reached after design strength, rotates long bolt 7, you can is reclaimed long bolt 7, anchoring backing plate 9, nut 10, is removed steel bed die 5。
A variety of modifications to these embodiments will be apparent for those skilled in the art, herein Defined General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.

Claims (8)

1. a kind of self-positioning anti-floating Prefabricated composite case mould for large span hollow floor, it is characterised in that the case mould is by pre- Concrete groove profile bed die processed is constituted with light filling block;Taper positioning hole is provided with through concrete groove profile bed die, in light filling The anti-floating screw hole of correspondence taper positioning hole is drilled with block in advance.
2. the self-positioning anti-floating Prefabricated composite case mould according to claim 1 for large span hollow floor, its feature exists In the lower port diameter of the taper positioning hole is between 25-50mm, and back cut diameter is more than or equal to 6mm;The number of taper positioning hole For 4-9.
3. the self-positioning anti-floating Prefabricated composite case mould for large span hollow floor according to claim, its feature exists In anti-floating screw hole is vertically arranged with taper positioning hole;Cone in the lower aperture and concrete groove profile bed die of anti-floating screw hole The upper orifice position of shape positioning hole, size are identical, after both are adapted to, the lower aperture of anti-floating screw hole and the upper hole of taper positioning hole Maximum horizontal skew between mouthful is dynamic less than or equal to 3mm.
4. a kind of user of the self-positioning anti-floating Prefabricated composite case mould for large span hollow floor described in claim 1 Method, it is characterised in that the case mould is poured for large span hollow floor girt strip;The case mould is led to a steel bed die before pouring An anti-floating system is crossed to fix;Anti-floating system and steel bed die are removed after pouring.
5. application method according to claim 4, it is characterised in that case mould is installed on steel bed die first, on steel bed die Provided with taper positioning pipe, taper positioning pipe is embedded in taper positioning hole after the positioning of both case mould and steel bed die, then by lightweight Filling block is placed on concrete groove profile bed die, and the anti-floating constituted with long bolt, the spacing plank of anti-floating, anchoring backing plate and nut is filled Put fixation;Fix and poured after finishing, wait to pour completion, conserve and reach design strength, remove steel bed die and anti-floating system.
6. application method according to claim 4, it is characterised in that revolve anchor in the spacing plank of anti-floating in the long bolt upper end On, the upper surface of the spacing plank laminating light filling block;The anchoring backing plate is passed through and led to by the lower end of the long bolt Cross the lower discharge surface that the taper positioning pipe is brought into close contact after nut is fixed.
7. application method according to claim 6, it is characterised in that all long bolts and anti-floating are spacing on same case mould Buoyancy when making a concerted effort to be more than casting concrete suffered by combination box mould of anchoring pulling force between plank.
8. application method according to claim 4, it is characterised in that the length of steel bed die at least across girt strip and its up to Less provided with two taper positioning pipes;When polylith steel bed die is applied in combination, square mould close-packed arrays, square mould diamond array can be used With bar shaped mould polylith assembled arrangement pattern.
CN201710508295.7A 2017-08-21 2017-08-21 Self-positioning anti-floating Prefabricated composite case mould and its application method for large span hollow floor Pending CN107237438A (en)

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108867965A (en) * 2018-07-05 2018-11-23 温州嘉成工程项目管理有限公司 A kind of construction method of the float Structure of cast-in-place concrete hollow building roof
CN111962733A (en) * 2019-09-06 2020-11-20 长沙巨星轻质建材股份有限公司 Construction method of cast-in-situ concrete hollow floor
CN113175145A (en) * 2021-04-30 2021-07-27 上海二十冶建设有限公司 Polystyrene square box core mold construction method for hollow floor system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2531000Y (en) * 2001-11-02 2003-01-15 冯毅 On situ pouring reinforced concrete bidirectional hollow building cover
CN101230741A (en) * 2004-05-10 2008-07-30 邱则有 Formwork component for cast-in-situs concrete
CN204738527U (en) * 2015-05-07 2015-11-04 江苏智信达建筑科技有限公司 Combined light case mould
AU2015204404B1 (en) * 2015-07-14 2016-08-11 Pantano Investments Pty Ltd Creation of Surface-mounted Sills or Hobs on Cast-in-situ Concrete Building Slabs
CN106013569A (en) * 2016-06-12 2016-10-12 中国十七冶集团有限公司 Method for preventing flotation of light solid composite core formwork of composite floor system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2531000Y (en) * 2001-11-02 2003-01-15 冯毅 On situ pouring reinforced concrete bidirectional hollow building cover
CN101230741A (en) * 2004-05-10 2008-07-30 邱则有 Formwork component for cast-in-situs concrete
CN204738527U (en) * 2015-05-07 2015-11-04 江苏智信达建筑科技有限公司 Combined light case mould
AU2015204404B1 (en) * 2015-07-14 2016-08-11 Pantano Investments Pty Ltd Creation of Surface-mounted Sills or Hobs on Cast-in-situ Concrete Building Slabs
CN106013569A (en) * 2016-06-12 2016-10-12 中国十七冶集团有限公司 Method for preventing flotation of light solid composite core formwork of composite floor system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108867965A (en) * 2018-07-05 2018-11-23 温州嘉成工程项目管理有限公司 A kind of construction method of the float Structure of cast-in-place concrete hollow building roof
CN111962733A (en) * 2019-09-06 2020-11-20 长沙巨星轻质建材股份有限公司 Construction method of cast-in-situ concrete hollow floor
CN113175145A (en) * 2021-04-30 2021-07-27 上海二十冶建设有限公司 Polystyrene square box core mold construction method for hollow floor system

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Application publication date: 20171010