CN205894492U - Post ultra high performance concrete's permanent template - Google Patents
Post ultra high performance concrete's permanent template Download PDFInfo
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- CN205894492U CN205894492U CN201620814626.0U CN201620814626U CN205894492U CN 205894492 U CN205894492 U CN 205894492U CN 201620814626 U CN201620814626 U CN 201620814626U CN 205894492 U CN205894492 U CN 205894492U
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- high performance
- template
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- performance concrete
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- 239000011374 ultra-high-performance concrete Substances 0.000 title claims abstract description 64
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 114
- 239000010959 steel Substances 0.000 claims abstract description 114
- 239000004567 concrete Substances 0.000 claims abstract description 54
- 230000002787 reinforcement Effects 0.000 claims abstract description 49
- 238000000465 moulding Methods 0.000 claims description 16
- 239000002689 soil Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 210000003205 muscle Anatomy 0.000 claims description 5
- 230000015271 coagulation Effects 0.000 claims 2
- 238000005345 coagulation Methods 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 13
- 238000010276 construction Methods 0.000 abstract description 12
- 230000003014 reinforcing effect Effects 0.000 abstract description 3
- 238000011065 in-situ storage Methods 0.000 abstract 2
- 239000010410 layer Substances 0.000 description 16
- 238000005516 engineering process Methods 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- 238000009415 formwork Methods 0.000 description 5
- 238000011160 research Methods 0.000 description 5
- 238000005266 casting Methods 0.000 description 4
- 238000005034 decoration Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000011372 high-strength concrete Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000009416 shuttering Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 235000011158 Prunus mume Nutrition 0.000 description 1
- 244000018795 Prunus mume Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002742 anti-folding effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000009750 centrifugal casting Methods 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011210 fiber-reinforced concrete Substances 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000004574 high-performance concrete Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
The utility model discloses a post ultra high performance concrete's permanent template, reach by the outer extremely interior concentric tube -shape permanent mould board steel reinforcement cage that sets up in proper order including outside ultra high performance concrete layer, be used for fashioned steel inner formword, core concrete preformed reinforcement bar cage, mutually perpendicular ground evenly is provided with the drawknot reinforcing bar of connecting permanent mould board steel reinforcement cage and core concrete preformed reinforcement bar cage on the steel inner formword, packs outside ultra high performance concrete layer in the space between foretell permanent mould board steel reinforcement cage, the steel inner formword, permanent mould board steel reinforcement cage wrap up in outside ultra high performance concrete layer, the utility model discloses save dismantlement inner formword and on -the -spot cast in situ concrete numerous and diverse construction procedure of arrangement of reinforcement once more, through the inside and outside concrete layer of the transverse reinforcement drawknot of steel inner formword, improved the not enough drawback of adhesion stress between traditional permanent template and the cast in situ concrete simultaneously to the durability is excellent.
Description
Technical field
This utility model belongs to building material technical field, particularly to a kind of permanent mould of post ultra-high performance concrete
Plate.
Background technology
When carrying out concreting, need to obtain the concrete component of design shape using template.Traditionally all adopt
With templates such as wooden model, punching block, aluminium alloy moulds, before casting concrete, need installation form, concrete needs after reaching intensity to remove mould
Plate.Form work engineering is the important component part of concrete structure construction, long construction period, costly.
After World War II, for improving speed of application, develop permanent template, template is not removed, as the one of structure after using
Part uses.Permanent template, due to its easy construction, is saved the duration, has been started progressively to be applied in all kinds of concrete workses.
Not only there is the support molding function of meeting casting concrete, the member-retaining portion in building structure can be become again, both may participate in and build
Build thing load-bearing, stress performance and the serviceability of structure can be improved again.According to the needs of building, permanent formwork can also be attached
Band has waterproof, insulation, heat-insulated, sound insulation, decoration, improves durability, reduces the function such as number of turnover, accomplishes one-shot forming, saves
But the operation such as sand finish, levelling, secondary decoration, waterproof thermal-insulated process, surface layer fitting-up, thus work can be greatlyd save
Journey construction momentum and decoration, decoration cost.Because permanent formwork does not need form removal, can save a large amount of due to form removal with have bad luck
Time spent by template and expense, highly shortened the duration, reduce construction costs, and reduce the labor intensity of workman.
Permanent template external at present mainly has following several form: (1) ict heat insulation formwork, is in american concrete association
A new technique of lower positive application can be promoted, and define " the new concrete structure residential body with technique as core
System ".(2) src structure construction no support shuttering, this be one kind be exclusively used in that steel composite construction (src) constructs permanent
Template, due to being made by factory process now, production efficiency is high, and Product Precision is ensured, and need not support.(3) prefabricated height
Strength mortar thin-walled template, is developed by Japanese Xi Song company, inner side is provided with shear connector and processes formation male and fomale(M＆F), pours through scene
Build concrete it is ensured that molding integrated member.(4) concrete prefabricated column mould, high-strength for adapting to by the exploitation of Japanese great Lin group company
Concrete requires and the concrete prefabricated column mould of research design, and its molding mode has two kinds: centrifugal casting and the inflow method of forming.
Since the nineties in 20th century, China's architectural structure system achieves huge development, with skyscraper and superelevation
A large amount of constructions of layer building, and the developing rapidly of large-scale capital construction, urban transportation and highway, the building of China
Construction technology makes great progress, the Building Trade in China also constantly template of Introduced From Abroad, scaffold system, and develops
All kinds of permanent new type formworks, main research has: (1) adopts frp(fiber-reinforced polymer) as concrete works forever
The high feature of property template long, fiberglass tensile strength and shock resistance effectively compensate for the low feature of concrete tensile strength,
The rupture strength of beam can be increased substantially.(2) steel-wire-net reinforced concrete thin plate template, is a kind of steel fiber reinforced concrete structure of broad sense
Part, intensity is high, Elastoplastic Performances in Simulation is high, and durability is high.(3) Ribbed shuttering steel concrete compoboard, overcomes widely used
The deficiency of version that combines with steel-concrete combination beam as bed die of profiled sheet, dramatically improve
The ductility of component.
In recent years, with the development of ultra-high performance concrete, also carried out ultra-high performance concrete permanent template both at home and abroad
Research, the RPC of wherein more research.
2005, Beijing Jiaotong University's clock comprcssive strength based on RPC superelevation for the prunus mume (sieb.) sieb.et zucc. forever, activity powder is proposed
Last concrete permanent template, the compressive mechanical property of its component is superior, and construction technology has very big improvement, the tension of single member
The mechanical property of anti-folding aspect has been short of, and requires further improvement.
Mixing of steel fiber in ultra-high performance concrete, can effectively overcome High Strength Concrete Under Compressive Cyclic Loading intensity high and tension,
The defect of fracture resistance difference.Harbin Institute of Technology and Institutes Of Technology Of Changsha all carried out the material of steel fibre high performance concrete
Experiments of Machanics, have higher Research Significance and future in engineering applications.
Ultra-high performance concrete permanent template molding at present mainly has two ways, centrifuging and casting method.
But during centrifugal forming ultra-high performance concrete permanent template, there is no coarse aggregate due in ultra-high performance concrete
Stop, the larger steel fibre of density can concentrate the outer layer being distributed in permanent template under the action of the centrifugal, or even causes steel fibre big
Amount is exposed to outer surface, and corrosion is so that the performance such as the resistance fragility of ultra-high performance concrete, toughness and durability reduces.With
When, the steel fibre of uneven distribution can lead to the mechanical heterogeneity of ultra-high performance concrete component, and outer layer permanent template mixes
Solidifying soil globality is destroyed, and increases the uncertain factor of element bearing capacity, the related component strength design of impact, also drops simultaneously
The low ability of component shearing resistance and Bend.These problems above-mentioned, can make the ultra-high performance concrete component of centrifugation use
When safety, durability or even bearing capacity can not reach expected purpose, the safety of Structural Engineering is threatened.
During casting method molding, because ultra-high performance concrete degree of compaction is very high, the ultra-high performance concrete permanent template demoulding
Inner surface unusual light afterwards, during use permanent template with after pour the imperfect bonding of wadding weft variation, can frequently result in bi-material
It is unable to collaborative work, cracking load is too low crack too early it is impossible to give full play to the performance of material, cause durability to decline,
Especially under cyclic reverse loading, both each work even more serious, and mechanical property substantially reduces.
Utility model content
This utility model purpose is to provide a kind of permanent template of post ultra-high performance concrete, can save dismounting molding
The inner template of permanent template and the scene numerous and diverse operational procedure for core concrete assembling reinforcement again, pass through steel internal model simultaneously
Concrete layer inside and outside steel tie drawknot on plate, improves the hypodynamic disadvantage that bonds between traditional permanent template and cast-in-place concrete
End.
A kind of permanent template of post ultra-high performance concrete, including outside ultra-high performance concrete layer and from outside to inside successively
The tubular permanent template steel reinforcement cage being arranged concentrically, the steel inner template being used for molding, core concrete reserved steel bar cage, in described steel
It is evenly arranged with the steel tie connecting permanent template steel reinforcement cage and core concrete reserved steel bar cage mutual vertically in template,
The outside ultra-high performance concrete layer of filling in space between above-mentioned permanent template steel reinforcement cage, steel inner template, described is permanent
Template steel reinforcement cage is wrapped in outside ultra-high performance concrete layer.
Further, described steel tie adopts the deformed bar of a diameter of 6 ~ 20mm, and along permanent template length direction
Every 1 meter minimum arrangement four.
Further, described permanent template steel reinforcement cage, core concrete reserved steel bar cage and steel inner template are all using welding
Formed overall.
Further, between described steel inner template and steel tie, permanent template steel reinforcement cage and core concrete reserve steel
Between muscle cage and steel tie, all it is connected with each other using welding.
Further, described steel inner template cross section is not round, and the fluctuating within there is 5mm is concavo-convex.
Further, ultra-high performance concrete layer has superhigh intensity and superelevation durability, comprcssive strength more than 130mpa,
Charge value is less than 40c.
Further, described ultra-high performance concrete thickness degree is not less than 35mm.
Further, described steel reinforcement cage includes some stirrups, is uniformly arranged along permanent template length direction and connects each hoop
The longitudinal reinforcement of muscle.
Further, the distance away from ultra-high performance concrete layer outer surface for the described permanent template stirrup is not less than 10mm, and
Less than wall thickness 40%.
The permanent template of this post ultra-high performance concrete, steel inner template during described molding, permanent template steel reinforcement cage, core is mixed
Solidifying soil reserved steel bar cage is collectively as the main steel bar stress of the permanent template of post ultra-high performance concrete.
The permanent template of this post ultra-high performance concrete, during described molding, the surfaces externally and internally of steel inner template all has drawknot steel
Muscle, for improving permanent template and core concrete cohesive force.
Compared to existing technology, the beneficial effects of the utility model are:
First, the steel reinforcement cage in steel inner template of the present utility model is a part for permanent template, cast-in-place concrete at the scene
Shi Buxu banding steel cage again, less working procedure, accelerate speed of application, convenient and simple.
2nd, the permanent template of post ultra-high performance concrete of the present utility model, by concrete inside and outside steel tie drawknot
Layer enhances the bearing capacity of cohesive force between permanent template and cast-in-place concrete and post, increases structural integrity further,
Improve the overall mechanical property of component.
3rd, this utility model saves making permanent template and tears steel inner template step open, it is to avoid what concrete shrinkage was brought tears open
Mould difficult problem.
4th, this utility model adopts ultra-high performance concrete as works protective layer, excellent durability.
5th, this utility model has ultra-high performance concrete as protective layer outside steel internal model, and fire resistance is good.
Brief description
Fig. 1 is the permanent template cross-sectional view of post ultra-high performance concrete of the present utility model
In figure show: the outside ultra-high performance concrete layer of 1-；2- permanent template steel reinforcement cage；3- steel inner template；4- drawknot
Reinforcing bar；5- core concrete reserves arrangement of reinforcement.
Specific embodiment
Below by way of specific instantiation, specific embodiment of the present utility model is described, those skilled in the art can be by
Content disclosed in the present specification understands advantage of the present utility model and effect easily.This utility model can also be other different
Mode be practiced, i.e. under the scope of not departing from disclosed in this utility model, different modifications and change can be given.
Embodiment:
As shown in figure 1, a kind of permanent template of post ultra-high performance concrete, including outside ultra-high performance concrete layer 1 and
The tubular permanent template steel reinforcement cage 2 being arranged concentrically successively from outside to inside, the steel inner template 3 being used for molding, core concrete are reserved
Steel reinforcement cage 5, described steel inner template 3 is evenly arranged with connection permanent template steel reinforcement cage 1 mutual vertically and core concrete is pre-
Stay the steel tie 4 of steel reinforcement cage 5, the outside superelevation of filling in the space between above-mentioned permanent template steel reinforcement cage 2, steel inner template 3
Performance concrete layer 1, described permanent template steel reinforcement cage 2 is wrapped in outside ultra-high performance concrete layer 1.
Described steel tie 4 adopt a diameter of 6 ~ 20mm deformed bar, and along permanent template length direction every 1 meter minimum
Arrangement two.
Described permanent template steel reinforcement cage 2, core concrete reserved steel bar cage 5 and steel inner template 3 are all formed whole using welding
Body.
Between described steel inner template 3 and steel tie 4, permanent template steel reinforcement cage 2 and core concrete reserved steel bar cage 5 and
Between steel tie, all it is connected with each other using welding.
Described steel inner template 3 cross section is not round, and the fluctuating within there is 5mm is concavo-convex.
Ultra-high performance concrete layer has superhigh intensity and superelevation durability, and, more than 130mpa, charge value is or not comprcssive strength
More than 40c.
Ultra-high performance concrete thickness degree is not less than 35mm.
Steel reinforcement cage includes some stirrups, is uniformly arranged and connects the longitudinal reinforcement of each stirrup along permanent template length direction.
The distance away from ultra-high performance concrete layer outer surface for the permanent template stirrup is not less than 10mm, and less than wall thickness
40%.
The permanent template of this post ultra-high performance concrete, steel inner template during described molding, permanent template steel reinforcement cage, core is mixed
Solidifying soil reserved steel bar cage is collectively as the main steel bar stress of the permanent template of post ultra-high performance concrete.
The permanent template of this post ultra-high performance concrete, during described molding, the surfaces externally and internally of steel inner template all has drawknot steel
Muscle, for improving permanent template and core concrete cohesive force.
The present embodiment adopts slump 813mm, the ultra-high performance concrete of cubic compressive strength 162mpa.Institute's molding
Superelevation concrete column permanent template is cylinder, external diameter 600mm, length 1500mm, the permanent template 3 of post ultra-high performance concrete
Wall thickness 50mm.Permanent template steel reinforcement cage 2 arrangement of reinforcement: 8 diameter 25hrb400, the ratio of reinforcement 1.14%, core concrete reserved steel bar
Cage 5 arrangement of reinforcement: 8 diameter 36hrb400, the ratio of reinforcement 1.04%.
Making step includes:
1) according to the size of permanent template, arrangement of reinforcement and protective layer require, make permanent template steel reinforcement cage 2, steel inner template 3,
Core concrete reserved steel bar cage 5；
2) steel tie 4 is welded in the surfaces externally and internally of steel inner template 3, and by permanent template steel reinforcement cage 2 and core concrete
Reserved steel bar cage 5 is welded on steel tie 4 with one heart；
3) above-mentioned steel reinforcement cage is placed in external mold, assembles permanent template mould；
4) prepare ultra-high performance concrete, the ultra-high performance concrete mixing is pumped into or pours in mould；
5) after ultra-high performance concrete post permanent template reaches strength of mould stripping, remove external mold；
6) mould steam curing 24 hours in 40 DEG C are carried；
7) after form removal, steam curing 48 hours in 85 DEG C；Obtain the permanent template of post ultra-high performance concrete.
For obtaining superelevation concrete column permanent template, cylinder adopts slump flow test 344mm, cube strength
The high-strength concrete of 58.4mpa, cast-in-place enter post ultra-high performance concrete permanent template in molding；Room temperature watering maintenance 28 days.
According to the method for testing of " Standard for test methods of concrete structures " (gb/t 50152-2012), embodiment superelevation
The cracking load of energy permanent template cylinder is 74.4mpa, compares ratio of reinforcement identical pumping molding ultra-high performance concrete permanent
Template cylinder improves 19.2%, and ultimate load is 96.4mpa, improves 12.4%.Permanent template and core concrete cooperation
All right, stress performance is excellent.
In sum, permanent template of post ultra-high performance concrete of the present utility model and preparation method thereof, by retaining
Steel inner template, saves in prefabricated permanent template and tears internal model step open, by steel tie, enhances permanent template and cast-in-place concrete
Between cohesive force, preparation is convenient, and reinforcing bar steel inner template within, as the main principal rod of cast-in-place concrete, reduces live
Working procedure, remarkable in economical benefits, the demand of large-scale industrial production can be met.
Description above and embodiment are merely illustrative principle of the present utility model and its effect, are not to this reality
With new restriction.Any creation falling in this utility model right comes under the model that this utility model is protected
Enclose.
Claims (9)
1. a kind of permanent template of post ultra-high performance concrete it is characterised in that: include outside ultra-high performance concrete layer (1) and
Tubular permanent template steel reinforcement cage (2) being arranged concentrically successively from outside to inside, the steel inner template (3) being used for molding, core concrete
Reserved steel bar cage (5), described steel inner template (3) is evenly arranged with connection permanent template steel reinforcement cage (1) and core mutual vertically
The steel tie (4) of heart concrete reserved steel bar cage (5), between above-mentioned permanent template steel reinforcement cage (2), steel inner template (3)
Outside ultra-high performance concrete layer (1) is filled, described permanent template steel reinforcement cage (2) is wrapped in outside very-high performance and mixes in space
In solidifying soil layer (1).
2. post ultra-high performance concrete according to claim 1 permanent template it is characterised in that: described steel tie
(4) adopt a diameter of 6 ~ 20mm deformed bar, and along permanent template length direction every 1 meter minimum arrangement two.
3. post ultra-high performance concrete according to claim 1 permanent template it is characterised in that: described permanent mould slab
Muscle cage (2), core concrete reserved steel bar cage (5) and steel inner template (3) are all formed overall using welding.
4. post ultra-high performance concrete according to claim 1 permanent template it is characterised in that: described steel inner template
(3) and steel tie (4) between, permanent template steel reinforcement cage (2) and core concrete reserved steel bar cage (5) and steel tie it
Between, all it is connected with each other using welding.
5. post ultra-high performance concrete according to claim 1 permanent template it is characterised in that: steel inner template (3) is horizontal
Section is circle, and the fluctuating within there is 5mm is concavo-convex.
6. according to claim 1 post ultra-high performance concrete permanent template it is characterised in that: described very-high performance coagulation
Soil layer has superhigh intensity and superelevation durability, and comprcssive strength is less than 40c more than 130mpa, charge value.
7. according to claim 1 post ultra-high performance concrete permanent template it is characterised in that: described very-high performance coagulation
Soil thickness is not less than 35mm.
8. post ultra-high performance concrete according to claim 1 permanent template it is characterised in that: described steel reinforcement cage bag
Include some stirrups, be uniformly arranged and connect the longitudinal reinforcement of each stirrup along permanent template length direction.
9. according to claim 1 post ultra-high performance concrete permanent template it is characterised in that: described permanent template stirrup
Distance away from ultra-high performance concrete layer outer surface is not less than 10mm, and 40% less than wall thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620814626.0U CN205894492U (en) | 2016-07-29 | 2016-07-29 | Post ultra high performance concrete's permanent template |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620814626.0U CN205894492U (en) | 2016-07-29 | 2016-07-29 | Post ultra high performance concrete's permanent template |
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| CN205894492U true CN205894492U (en) | 2017-01-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106193454A (en) * | 2016-07-29 | 2016-12-07 | 华南理工大学 | A kind of permanent template of post ultra-high performance concrete and preparation method thereof |
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2016
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106193454A (en) * | 2016-07-29 | 2016-12-07 | 华南理工大学 | A kind of permanent template of post ultra-high performance concrete and preparation method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170118 |