CN102828578B - A kind of bolt connecting type can assembled anti-cracking and seepage control permanent column shuttering - Google Patents
A kind of bolt connecting type can assembled anti-cracking and seepage control permanent column shuttering Download PDFInfo
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- CN102828578B CN102828578B CN201210294891.7A CN201210294891A CN102828578B CN 102828578 B CN102828578 B CN 102828578B CN 201210294891 A CN201210294891 A CN 201210294891A CN 102828578 B CN102828578 B CN 102828578B
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- 238000009416 shuttering Methods 0.000 title claims abstract description 13
- 238000005336 cracking Methods 0.000 title claims abstract description 12
- 239000000835 fiber Substances 0.000 claims abstract description 56
- 239000002131 composite material Substances 0.000 claims abstract description 36
- 229910052755 nonmetal Inorganic materials 0.000 claims abstract description 20
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 15
- 244000144992 flock Species 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 10
- 239000004744 fabric Substances 0.000 claims abstract description 5
- 238000007493 shaping process Methods 0.000 claims abstract description 4
- 239000004568 cement Substances 0.000 claims description 33
- 239000002585 base Substances 0.000 claims description 31
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 29
- 239000011707 mineral Substances 0.000 claims description 29
- 239000004698 Polyethylene Substances 0.000 claims description 11
- -1 polyethylene Polymers 0.000 claims description 11
- 229920000573 polyethylene Polymers 0.000 claims description 11
- 239000010881 fly ash Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000002893 slag Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 6
- 229920006231 aramid fiber Polymers 0.000 claims description 4
- 239000011159 matrix material Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 2
- 239000011398 Portland cement Substances 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 239000004917 carbon fiber Substances 0.000 claims description 2
- 239000003638 chemical reducing agent Substances 0.000 claims description 2
- 239000000470 constituent Substances 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 claims description 2
- 229910021653 sulphate ion Inorganic materials 0.000 claims description 2
- 239000004753 textile Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 4
- 235000013312 flour Nutrition 0.000 claims 1
- 239000000377 silicon dioxide Substances 0.000 claims 1
- 239000011216 ultra-high temperature ceramic matrix composite Substances 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000001186 cumulative effect Effects 0.000 description 12
- 239000004760 aramid Substances 0.000 description 6
- 229920003235 aromatic polyamide Polymers 0.000 description 6
- 238000010276 construction Methods 0.000 description 6
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 239000004567 concrete Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 239000002956 ash Substances 0.000 description 4
- 238000009415 formwork Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000012615 aggregate Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 101100002917 Caenorhabditis elegans ash-2 gene Proteins 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of bolt connecting type can assembled anti-cracking and seepage control permanent column shuttering, comprises panel and corner line.Panel is all connected by bolt with corner line with panel, panel.The present invention uses as column template in industry and Civil structure, hydro-structure, port sea structure and the isostructural cylinder of bridge stage of building, build shaping rear double do this structure protected apron and external protection bear a part of load.Panel of the present invention and corner line can make of following several different kinds material, comprise superhigh tenacity cement-base composite material (UHTCC), non metal fiber woven net flock combined reinforced concrete base composite material, gauze wire cloth flock combined reinforced concrete base composite material etc., have simple for production, easy to use, durability is high, the feature that control critical eigenvalue is carried out.
Description
Technical field
The invention belongs to a kind of construction formwork; specifically a kind of high-durability permanent formwork being mainly used in industry and Civil structure, hydro-structure, port sea structure and the isostructural cylinder of bridge; use as template in the stage of building; build shaping rear double protected apron and the external protection doing structure, bear the structural load of a part simultaneously.
Background technology
At present, in domestic construction field, industry uses the template such as wooden form, steel form usually with Civil structure, hydro-structure, port sea structure and the isostructural cylinder of bridge, there is the unfavorable factors such as consumption is large, dismounting is inconvenient, have enough to meet the need costly, utilization rate is low.Endurance issues is one of subject matter of facing of reinforced concrete structure all the time.In structure under conventional situation, ordinary concrete surface is naturally exposed, and durability is lower, and the house of current China nearly 50% enters the ageing step, and namely the building of 23.4 hundred million square metres faces endurance issues.In addition, to carry out using cracking resistance as controlled condition designing be hydro-structure, sea, port structure etc. is different from the key character of other types building structure, the normal work that ordinary concrete problem easy to crack not only can affect hydro-structure etc. also can affect its durability and application life, the serious safe operation that even can affect structure.Some is industry and more scabrous problem in Civil structure, hydro-structure, the port sea construction such as structure and bridge and use procedure all the time above.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of bolt connecting type can assembled anti-cracking and seepage control permanent column shuttering, to improve the unfavorable factor that conventional template is brought, improve structure durability simultaneously, reduce structure later maintenance cost and the application life of final extending structure, for this reason, the present invention is by the following technical solutions:
It is bolted by polylith panel and polylith corner line and forms, the both sides of described panel have the first connecting portion inwardly or outwardly, described corner line is formed main body with the first perpendicular panel and the second panel, the both sides of corner panel are extruded with the second connecting portion, and the second connecting portion and the first connecting portion are in the same side of column template; All connected by bolt between the first adjacent connecting portion, between the second adjacent connecting portion and the first connecting portion, described panel and corner line select following different materials to make: superhigh tenacity cement-base composite material UHTCC, non metal fiber woven net and flock combined reinforced concrete base composite material, gauze wire cloth and flock combined reinforced concrete base composite material.
On the basis adopting technique scheme, the present invention also can adopt following further technical scheme:
Superhigh tenacity cement-base composite material UHTCC used, its composition comprises cement, active mineral admixture, aggregate, fiber and water, and active mineral admixture adopts the combination of flyash or flyash and one or more materials following: silicon ash, granulated blast-furnace slag, metakaolin; The maximum particle diameter of aggregate is no more than 0.5mm, fiber is one or more the combination in vinal, polyethylene fibre, aromatic polyamide fibre, fibre length is 5 ~ 25mm, diameter is 0.015 ~ 0.055mm, modulus of elasticity is 30 ~ 150GPa, tensile strength is 1000 ~ 3500MPa, ultimate elongation is 2% ~ 15%, and the weight ratio of cement and each component of active mineral admixture is:
Cement 12% ~ 55%
Flyash 45% ~ 85%
Silicon ash 0 ~ 15%
Granulated blast-furnace slag 0 ~ 10%
Metakaolin 0 ~ 20%
Above cement and each components by weight sum of active mineral admixture meet 100%;
The weight of aggregate is 1% ~ 70% with the ratio of cement and active mineral admixture gross weight, and the weight of water is 18% ~ 58% with the ratio of cement and active mineral admixture gross weight, and the volume of fiber is 1.5% ~ 2.5% of cement-base composite material cumulative volume.
When described superhigh tenacity cement-base composite material uses vinal, polyethylene fiber peacekeeping aromatic polyamide fibre three kinds of fibers strengthen simultaneously, its proportioning is:
Cement and each components by weight of active mineral admixture are: cement 25%, flyash 60%, silicon ash 2%, granulated blast-furnace slag 8%, metakaolin 5%;
The maximum particle diameter of aggregate is 0.5mm, and the ratio that aggregate weigh and cement add active mineral admixture gross weight is 40%, and the ratio that weight and the cement of water add active mineral admixture gross weight is 25% ~ 45%; The volume of fiber is 1.8% ~ 2.3% of cement-base composite material cumulative volume;
The polyethylene fibre length adopted is 12mm, and diameter is 0.039mm, and tensile strength is 1620MPa, and modulus of elasticity is 42.8GPa, and ultimate elongation is 6%, and volume is 1.2% ~ 1.5% of cement-base composite material cumulative volume; Polyethylene fibre length is 12.7mm, and diameter is 0.038mm, and tensile strength is 2700MPa, and modulus of elasticity is 120GPa, and ultimate elongation is 3.5%, and volume is 0.4% ~ 0.9% of cement-base composite material cumulative volume; Aromatic polyamide fibre length is 15mm, and diameter is 0.015mm, and tensile strength is 2800MPa, and modulus of elasticity is 132GPa, ultimate elongation 2.4%, and volume is 0.2% ~ 0.4% of cement-base composite material cumulative volume.
When described cement-base composite material uses vinal and aromatic polyamide fibre two kinds of fibers to strengthen simultaneously, its proportioning is:
Cement and each components by weight of active mineral admixture are: cement 30%, flyash 52%, granulated blast-furnace slag 3%, metakaolin 15%;
The maximum particle diameter of aggregate is 0.5mm, and the ratio that aggregate weigh and cement add active mineral admixture gross weight is 65%, and the ratio that weight and the cement of water add active mineral admixture gross weight is 20% ~ 55%; The volume of fiber is 1.8% ~ 2.2% of cement-base composite material cumulative volume;
The vinal length adopted is 12mm, and diameter is 0.039mm, and tensile strength is 1620MPa, and modulus of elasticity is 42.8GPa, and ultimate elongation is 6%, and volume is 1.6% ~ 2.0% of cement-base composite material cumulative volume; Aromatic polyamide fibre length is 15mm, and diameter is 0.015mm, and tensile strength is 2800MPa, and modulus of elasticity is 132GPa, ultimate elongation 2.4%, and volume is 0.2% ~ 0.4% of cement-base composite material cumulative volume.
When described cement-base composite material uses vinal and polyethylene fibre two kinds of fibers to strengthen simultaneously, its proportioning is:
Cement and each components by weight of active mineral admixture are: cement 55%, flyash 45%; The model of described cement is P.II52.5R;
The maximum particle diameter of aggregate is 0.5mm, and the ratio that weight and the cement of aggregate add active mineral admixture gross weight is 50%, and the ratio that weight and the cement of water add active mineral admixture gross weight is 40% ~ 55%; The volume of fiber is 1.8% ~ 2.2% of cement-base composite material cumulative volume;
The vinal length adopted is 12mm, and diameter is 0.039mm, tensile strength is 1620MPa, modulus of elasticity is 42.8GPa, ultimate elongation is 6%, and volume is 1.2% ~ 1.9% of fibrous concrete cumulative volume; Polyethylene fibre length is 12.7mm, and diameter is 0.038mm, and tensile strength is 2700MPa, and modulus of elasticity is 120GPa, and ultimate elongation is 3.5%, and volume is 0.3% ~ 0.8% of cement-base composite material cumulative volume.
Described non metal fiber woven net and flock combined reinforced concrete base composite material are made up of non metal fiber woven net, nonmetal short fiber and cement based matrix, and described non metal fiber woven net comprises: Carbon Fibre Textile, aramid fiber mesh grid, alkali-resistant glass fibre mesh grid, vinal mesh grid, polyethylene fibre mesh grid or the assorted fibre mesh grid of being made up of above fiber shuffling; Nonmetal short fiber comprises: one or more in vinal, polyethylene fibre, carbon fiber, aramid fiber; The constituent of cement based matrix comprises: in portland cement, high alumina cement, sulphate aluminium cement one or more, active mineral fine mineral admixture, water reducing agent, meticulous sand, described active mineral fine mineral admixture is the material with pozzolanic activity.
In non metal fiber woven net flock combined reinforced concrete base composite material, the percent by volume of use this total composite volume relative is the nonmetal short fiber of 1.5 ~ 2.5%.
Described first connecting portion is the sidewall shape of panel, and the second connecting portion is the sidewall shape of corner pieces; First connecting portion and the second connecting portion reserve bolt connecting hole; Panel inner surface is distributed with some grooves; The inner surface of corner line is distributed with some grooves.
Transverse joint between described panel staggers mutually, and the seam between corner line and the transverse joint between panel stagger mutually.
The present invention can need to adjust according to using the template that the quantity of panel and size are combined to form required size and shape, and meanwhile, corner line can ensure the connection between panel and panel, thus forms complete template system.Realization is bolted for the connection between panel and panel and between corner line and panel.The size of column template of the present invention can meet the needs of the difformity sizes such as square, rectangle according to actual needs by the size and quantity adjusting panel, adjustment panel and corner line quantity meet the needs of differing heights size.
Owing to adopting technical scheme of the present invention; the present invention used as template in the stage of building; build shaping after, do not need to remove, and double protected apron and the external protection doing structure; become permanent formwork; itself cost is low and also eliminate demolition cost and turnover expense, reduces engineering cost, can improve and solve the problems such as dismounting in the template constructions such as industry and the extra large structure in Civil structure, hydro-structure and port and utilization rate; reduce construction intensity, greatly can shorten the engineering time.Meanwhile, because this template is made up of superhigh tenacity cement-base composite material, non metal fiber woven net and flock combined reinforced concrete base composite material or gauze wire cloth and flock combined reinforced concrete base composite material, the feature such as there is high stretching ductility and Crack Control ability, damage tolerance is high, energy absorption capability is strong, effectively can reduce the harmful cracks of body structure surface generation and suppress crack progressing, its chloride-penetration resistance and water resistant permeance property are much better than ordinary concrete, can significantly improve durability and the application life of concrete structure.Meanwhile, adopt the structure of panel of the present invention and corner line, column template is by panel and the assembled assembling of corner line, and have and make simply, assemble easy to use, durability is high, the feature that control critical eigenvalue is carried out.Column template of the present invention can also be born part-structure load and reduce column body amount of reinforcement, promotes overall efficiency.
Accompanying drawing explanation
Fig. 1 (a) is the permanent column shuttering structural representation that panel of the present invention and corner line are connected into.
Fig. 1 (b) is the permanent column shuttering top view that panel of the present invention and corner line are connected into.
Fig. 2 (a) is the structural representation of panel of the present invention.
Fig. 2 (b) is the elevation of panel of the present invention.
Fig. 2 (c) is the top view of panel of the present invention.
Fig. 2 (d) is the lateral view of panel of the present invention.
Fig. 2 (e) is the A-A sectional view of Fig. 2 (c).
Fig. 3 (a) is the structural representation of corner line of the present invention.
Fig. 3 (b) is the elevation of corner line of the present invention.
Fig. 3 (c) is the top view of corner line of the present invention.
Fig. 3 (d) is the lateral view of corner line of the present invention.
Fig. 3 (e) is the B-B sectional view of Fig. 3 (b).
Fig. 3 (f) is the C-C sectional view of Fig. 3 (b).
Fig. 4 (a) is bolt connection diagram of the present invention.
Fig. 4 (b) is the top view of bolt connection diagram of the present invention.
Fig. 4 (c) is the lateral view of bolt connection diagram of the present invention.
Fig. 5 (a) is the shaft side figures such as the southwest of assembling schematic diagram of the present invention.
Fig. 5 (b) is the shaft side figures such as the southeast of assembling schematic diagram of the present invention.
Detailed description of the invention
Can assembled anti-cracking and seepage control permanent column shuttering detailed description of the invention be described further bolt connecting type provided by the present invention below in conjunction with accompanying drawing, this embodiment is to explanation of the present invention, instead of makes any restriction to the present invention.
A kind of bolt connecting type of the present embodiment can connect to form square cross section column type mould by panel 1 two ten four pieces and corner line 2 eight pieces by bolt 13 by assembled anti-cracking and seepage control permanent column shuttering, the both sides of described panel 1 have the first connecting portion 10 inwardly or outwardly, described corner line 2 is formed main body with the first perpendicular panel 23 and the second panel 24, the both sides of corner panel are extruded with the same side that the second connecting portion 20, second connecting portion 20 and the first connecting portion 10 are in column template; All connected by bolt 13 between the first adjacent connecting portion, between the second adjacent connecting portion and the first connecting portion, described panel 1 and corner line 2 select following different materials to make: superhigh tenacity cement-base composite material UHTCC, non metal fiber woven net and flock combined reinforced concrete base composite material, gauze wire cloth and flock combined reinforced concrete base composite material.
The sidewall shape of described first connecting portion 10 in panel, the sidewall shape of the second connecting portion 20 in corner pieces, the first connecting portion and the second connecting portion reserve bolt connecting hole; Panel 1 inner surface is distributed with some grooves 11; The inner surface of corner line 2 is distributed with some grooves 21.
Transverse joint between described panel staggers mutually, and the seam between corner line and the transverse joint between panel stagger mutually.
As shown in Fig. 5 (a) (b), below introduce the implementation method in above-mentioned situation.
1. the material superhigh tenacity cement-base composite material UHTCC of panel and corner line, its composition comprises cement, active mineral admixture, aggregate, fiber and water, and active mineral admixture adopts the combination of flyash or flyash and one or more materials following: silicon ash, granulated blast-furnace slag, metakaolin, the maximum particle diameter of aggregate is no more than 0.5mm, fiber is vinal, polyethylene fibre, one or more combination in aromatic polyamide fibre, fibre length is 5 ~ 25mm, diameter is 0.015 ~ 0.055mm, modulus of elasticity is 30 ~ 150GPa, tensile strength is 1000 ~ 3500MPa, ultimate elongation is 2% ~ 15%, the weight ratio of cement and each component of active mineral admixture is: cement (12% ~ 55%), flyash (45% ~ 85%), silicon ash (0 ~ 15%), granulated blast-furnace slag (0 ~ 10%), metakaolin (0 ~ 20%), above cement and each components by weight sum of active mineral admixture meet 100%, the weight of aggregate is 1% ~ 70% with the ratio of cement and active mineral admixture gross weight, and the weight of water is 18% ~ 58% with the ratio of cement and active mineral admixture gross weight, and the volume of fiber is 1.5% ~ 2.5% of cement-base composite material cumulative volume.
2. during assembling, carried out by panel assembled from bottom to top, panel suitable interlaced arrangement during assembling, thus make panel transverse joint not on the same line, bolt 13 carries out the connection between panel, as shown in Fig. 4 (a) (b) (c).
3. use the panel of corner line 2 joint pin template not in coplanar, use bolt 13 to connect, as shown in Fig. 5 (a) (b).The seam of corner line 2 should be suitable interleaved with the transverse joint of panel, thus make it not on the same line.
During construction, size design and the assembling of carrying out panel and corner line can be needed according to real size, the cross section that can be realized different size by the size and quantity adjusting panel is rectangle or foursquare column template, and adjustment panel, corner line quantity meet the needs of differing heights size.Panel and corner line alternative splicing should be adopted from bottom to top to complete the overall package of column template, and assembling mode is varied.
It is simple that the present invention has making, easy to use, the feature that raising structure durability and control critical eigenvalue are carried out, and easily meets the application of a large amount of engineering.
Claims (5)
1. a bolt connecting type can assembled anti-cracking and seepage control permanent column shuttering, it is characterized in that: it is bolted by polylith panel (1) and polylith corner line (2) and forms, the both sides of described panel (1) have the first connecting portion inwardly or outwardly, described corner line (2) is formed main body with the first perpendicular panel and the second panel, the both sides of corner panel are extruded with the second connecting portion, second connecting portion and the first connecting portion are in the same side of column template, described first connecting portion is the sidewall shape of panel, second connecting portion is the sidewall shape of corner pieces, first connecting portion and the second connecting portion reserve bolt connecting hole, panel inner surface is distributed with some grooves, the inner surface of corner line is distributed with some grooves, all connected by bolt between the first adjacent connecting portion, between the second adjacent connecting portion and the first connecting portion, described panel and corner line select following different materials to make: non metal fiber woven net and flock combined reinforced concrete base composite material, gauze wire cloth and nonmetal flock combined reinforced concrete base composite material, described column template used as template in the stage of building, build shaping after, do not need to remove, and double protected apron and the external protection doing structure, described column template is born part-structure load and is reduced column body amount of reinforcement.
2. a kind of bolt connecting type according to claim 1 can assembled anti-cracking and seepage control permanent column shuttering, it is characterized in that: described non metal fiber woven net and flock combined reinforced concrete base composite material are made up of non metal fiber woven net, nonmetal short fiber and cement based matrix, and described non metal fiber woven net comprises: Carbon Fibre Textile, aramid fiber mesh grid, alkali-resistant glass fibre mesh grid, vinal mesh grid, polyethylene fibre mesh grid or the assorted fibre mesh grid of being made up of above fiber shuffling; Nonmetal short fiber comprises: one or more in vinal, polyethylene fibre, carbon fiber, aramid fiber; The constituent of cement based matrix comprises: in portland cement, high alumina cement, sulphate aluminium cement one or more, active mineral fine mineral admixture, water reducing agent, meticulous sand, described active mineral fine mineral admixture is the material with pozzolanic activity.
3. a kind of bolt connecting type according to claim 2 can assembled anti-cracking and seepage control permanent column shuttering; it is characterized in that: the material of pozzolanic activity comprises one or more in flyash, silica flour, granulated blast-furnace slag, and the maximum particle diameter of meticulous sand is less than 0.6mm.
4. a kind of bolt connecting type according to claim 2 can assembled anti-cracking and seepage control permanent column shuttering, it is characterized in that: in non metal fiber woven net and flock combined reinforced concrete base composite material, the percent by volume of nonmetal short fiber this total composite volume relative is 1.5 ~ 2.5%.
5. a kind of bolt connecting type according to claim 1 can assembled anti-cracking and seepage control permanent column shuttering, and it is characterized in that: the transverse joint between described panel staggers mutually, the seam between corner line and the transverse joint between panel stagger mutually.
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| CN201210294891.7A CN102828578B (en) | 2012-08-17 | 2012-08-17 | A kind of bolt connecting type can assembled anti-cracking and seepage control permanent column shuttering |
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| CN201210294891.7A CN102828578B (en) | 2012-08-17 | 2012-08-17 | A kind of bolt connecting type can assembled anti-cracking and seepage control permanent column shuttering |
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| CN106738233B (en) * | 2016-12-19 | 2022-12-16 | 席成松 | Cast-in-place post of concrete and well hole assembling die and concrete mould |
| CN111305551A (en) * | 2020-03-07 | 2020-06-19 | 界首市天瓴建筑工程有限公司 | Template for building engineering construction |
| CN111424971B (en) * | 2020-04-21 | 2022-11-29 | 中国矿业大学 | TRE (tree splicing type permanent cylindrical template) and manufacturing method thereof |
| CN113152789A (en) * | 2021-05-13 | 2021-07-23 | 郭良红 | High-strength building concrete column pouring construction method |
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