CN105649327A - Method for pouring concrete outside steel pipe columns by using semicircular templates - Google Patents
Method for pouring concrete outside steel pipe columns by using semicircular templates Download PDFInfo
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- CN105649327A CN105649327A CN201510113430.9A CN201510113430A CN105649327A CN 105649327 A CN105649327 A CN 105649327A CN 201510113430 A CN201510113430 A CN 201510113430A CN 105649327 A CN105649327 A CN 105649327A
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Abstract
The invention discloses a method for pouring concrete outside steel pipe columns by using semicircular templates. The method comprises the following steps: constructing after concrete is poured in beams and the steel pipe columns of a building, the strength reaches 1.2 MPa, and column reinforcements are bound; reserving pouring holes in an upper floor when the beam and steel pipe column concrete is poured; when concrete outside the steel pipe columns is poured, firstly erecting a scaffold outside the to-be-poured steel pipe columns, assembling column templates by using the scaffold, wherein the column templates are semicircular wood templates or glass fiber reinforced plastics templates of which the lengths are different, fixing the column templates with steel strip hoops, forming pouring grooves between the tops of the column templates and the pouring holes reserved in the upper floor, and fixing and positioning the column templates through steel pipes connected to the scaffold; then pouring concrete outside the steel pipe columns by using self compact concrete; and finally, finishing pouring construction of the concrete outside the steel pipe columns through mould release and maintenance. The method disclosed by the invention mainly has the characteristics of smooth inner surfaces, precise roundness, high strength, easiness in moulding and convenience in assembly and disassembly.
Description
Technical field
The present invention relates to a kind of method adopting semicircle template to carry out the outer concrete placement of Steel Cylindrical Column, belong to Steel Cylindrical Column technical field of construction.
Background technology
At present in the various architectural design of China, cylinder system occurs in a large number, a lot of unit in charge of construction, when cylinder is constructed, adopts traditional cylinder sizing steel, wood formwork system more, but this kind of template system exists that piece is many, time-consuming, cost height, from the mobile problem such as inconvenient great, artificial.
Summary of the invention
It is an object of the present invention to provide a kind of method adopting semicircle template to carry out the outer concrete placement of Steel Cylindrical Column, to overcome, prior art piece is many, time-consuming, cost height, from the mobile problem such as inconvenient great, artificial.
The technical scheme of the present invention:
Adopting semicircle template to carry out the method for the outer concrete placement of Steel Cylindrical Column, the method is built complete at the beam built and steel pipe column interior concrete, and intensity reaches 1.2MPa, constructs after post reinforcing bar binding; At the reserved pouring hole of upper strata floor when casting beams and Steel Cylindrical Column concrete; When carrying out concrete placement outside Steel Cylindrical Column, first outside Steel Cylindrical Column to be built, set up scaffolding, utilize the assembled column template of scaffolding, column template be length not wait semicircle wooden form or glass steel formwork, column template steel band hoop is fixed, install between the pouring hole that column template top and upper strata floor are reserved and build groove, utilize the steel pipe being connected with scaffolding by column template stationary positioned, and then adopt self-compacting concrete to carry out the outer concrete placement of Steel Cylindrical Column, finally by the demoulding, maintain Steel Cylindrical Column concrete pouring construction outward.
In aforementioned method, described scaffolding is positioned at around Steel Cylindrical Column, and the plan view shape of scaffolding is door font, and opening is as the entrance of column template; Scaffolding is equipped with bamboo raft plate; Workmen completes post muscle colligation and model sheetinstallat by scaffolding, by the steel pipe that is connected with scaffolding, column template is squeezed tightening position simultaneously.
In aforementioned method, when described semicircle wooden form or glass steel formwork are assembled, left template is interlocked assembled with right template and is become cylinder mold by steel band hoop.
In aforementioned method, described steel band hoop is along column template longitudinal arrangement, and the steel band hoop of bottommost is located at distance 100mm place, ground, at the horizontal seam place of every block column template steel band together with each setting in horizontal seam upper and lower 100mm place; Remaining is arranged by spacing 200��250mm.
In aforementioned method, described in build groove shape be up big and down small bell mouth shape, lower end is connected with cylinder mold top, and junction is tight by sponge strip bonding or the splicing of other materials.
In aforementioned method, the steel pipe that described utilization is connected with scaffolding, by column template stationary positioned, is place vertical batten respectively at cylinder mold four direction, and wherein two vertical battens are positioned at left template and right templateVerticalSeam place, and it is fixing to embrace hoop with one group; Then by the steel pipe that is connected with scaffolding by vertical batten clamping and positioning.
In aforementioned method, described cylinder mold root should carry out stifled slurry process; Stifled slurry process builds the high sand-cement slurry of a circle 70��100mm by laying bricks or stones along post root, after 1��2 day mortar reaches intensity, carries out concrete placement; Or the gap of 20��30mm is stayed at post mould root, the steel frame that outer hoop high 30��50mm is square or circular or wooden frame, insert mortar when carrying out building post concrete in its space.
In aforementioned method, described self-compacting concrete is built by pouring hole reserved on the floor of upper strata, and the method for shaking is struck in casting process employing, and to guarantee, concrete is full of template.
In aforementioned method, the concrete placement time of Dan Genzhu is 0.5��1 hour, removes with the outer mortar of smearing by post root after building; 5 hours after building, concrete initial set, will build the concrete chisel removal of the hydraucone of mouth.
In aforementioned method, the described demoulding is building 24 hours, is greater than until concrete strength and carries out the demoulding after 1MPa; Described maintenance is immediately with the cement of 1:1 and dry powder even erasing shaft comprehensively after form removal, and wraps tightly with plastic cloth, and diameter >=1200mm presses mass concrete maintenance, and shaft is wrapped insulation quilt.
Compared with prior art, the present invention has following principal feature: internal surface is smooth, and circularity is accurate, and has certain intensity. Seam is few, planeness height, erects and does not closely leak slurry to seam. It is easy to shaping, easy accessibility, effect height. Good heat insulating, is conducive to winter construction. Have good workability. Template can be followed closely according to construction requirement in working-yard, saws, holed by carpenter, cutting etc., it is possible to need, according to construction, the template being processed into different shape, simple, convenient, when economizing. Warpage is not out of shape, is not ftractureed, water resistance is good, turnover number of times height, long service life. The demoulding is easy, it may also be useful to time be coated with one layer of releasing agent, reinforce embrace a hoop unclamp and can automatically peel off, reduce damaged template.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is that left-right template is interlocked assembled schematic diagram;
Fig. 4 is the stifled paste-making method one of root;
Fig. 5 is the stifled paste-making method two of root;
Fig. 6 cuts to build the unnecessary concrete schematic diagram of mouth.
Being labeled as in accompanying drawing: 1-beam, 2-Steel Cylindrical Column, 3-upper strata floor, 4-pouring hole, 5-scaffolding, 6-column template, 7-steel band hoop, 8-build groove, 9-steel pipe, the vertical batten of 10-, 11-bamboo raft plate, the left template of 12-, the right template of 13-, 14-sand-cement slurry, 15-steel frame or wooden frame, 16-mortar, the unnecessary concrete of 17-.
Embodiment
Semicircle template is adopted to carry out the method for the outer concrete placement of Steel Cylindrical Column, as depicted in figs. 1 and 2. The method is built complete at the beam 1 built and Steel Cylindrical Column 2 inner concrete, and intensity reaches 1.2MPa, constructs after post reinforcing bar binding; Pouring hole 4 is reserved at upper strata floor 3 when casting beams and Steel Cylindrical Column concrete; When carrying out concrete placement outside Steel Cylindrical Column, first outside Steel Cylindrical Column to be built, set up scaffolding 5, utilize the assembled column template 6 of scaffolding, column template be length not wait semicircle wooden form or glass steel formwork, column template steel band hoop 7 is fixed, install between the pouring hole 4 that column template top and upper strata floor are reserved and build groove 8, utilize the steel pipe 9 being connected with scaffolding by column template stationary positioned, and then adopt self-compacting concrete to carry out the outer concrete placement of Steel Cylindrical Column, finally by the demoulding, maintain Steel Cylindrical Column concrete pouring construction outward. As shown in Figure 2, scaffolding is positioned at around Steel Cylindrical Column, and the plan view shape of scaffolding is door font, and opening is as the entrance of column template; Scaffolding is equipped with bamboo raft plate 11; Workmen completes post muscle colligation and model sheetinstallat by scaffolding, by the steel pipe that is connected with scaffolding, column template is squeezed tightening position simultaneously. As shown in Figure 3, when semicircle wooden form or glass steel formwork are assembled, left template 12 is interlocked assembled with right template 13 and is become cylinder mold by steel band hoop. Steel band hoop is along column template longitudinal arrangement, and the steel band hoop of bottommost is located at distance 100mm place, ground, at the horizontal seam place of every block column template steel band together with each setting in horizontal seam upper and lower 100mm place; Remaining is arranged by spacing 200��250mm. The shape building groove is up big and down small bell mouth shape, and lower end is connected with cylinder mold top, and junction is tight by sponge strip bonding or the splicing of other materials. Utilizing the steel pipe being connected with scaffolding to be place vertical batten 10 respectively at cylinder mold four direction by column template stationary positioned, wherein two vertical battens are positioned at the vertical joint place of left template 12 with right template 13, and it is fixing to embrace hoop with one group; Then by the steel pipe that is connected with scaffolding by vertical batten clamping and positioning. Cylinder mold root should carry out stifled slurry process; Stifled slurry process builds the high sand-cement slurry of a circle 70��100mm by laying bricks or stones along post root as shown in Figure 4, after 1��2 day mortar reaches intensity, carries out concrete placement; Or as shown in Figure 5, staying the gap of 20��30mm at post mould root, the steel frame that outer hoop high 30��50mm is square or circular or wooden frame, insert mortar when carrying out building post concrete in its space. Self-compacting concrete is built by pouring hole reserved on the floor of upper strata, and the method for shaking is struck in casting process employing, and to guarantee, concrete is full of template. The concrete placement time of Dan Genzhu is 0.5��1 hour, removes with the outer mortar of smearing by post root after building; 5 hours after building, concrete initial set, as shown in Figure 6, will build the concrete chisel removal of the hydraucone of mouth. The demoulding is building 24 hours, is greater than until concrete strength and carries out the demoulding after 1MPa; Described maintenance is immediately with the cement of 1:1 and dry powder even erasing shaft comprehensively after form removal, and wraps tightly with plastic cloth, and diameter >=1200mm presses mass concrete maintenance, and shaft is wrapped insulation quilt.
Embodiment
This example is constructed according to the following steps:
One, required column template 6 should be got out before construction, and the instrument of the steel pipe and fixing card and indispensability setting up scaffolding 5 is such as shifting wrench, hammer, pliers, carpenter's wood saw etc. And complete the previous work possessing execution conditions. As complete in beam 1 and Steel Cylindrical Column 2 concrete placement, intensity reaches 1.2MPa, and post reinforcing bar binding is complete. Cleaning post root periphery place, gets through the pouring hole buried in advance; Place near the floor pouring hole of cleaning upper strata.
Two, scaffolding is set up. The plan view shape of scaffolding 5 is door font, and scaffold building leaves column template 6 erect to interim entrance in Steel Cylindrical Column 2 three, scaffolding one side. Scaffolding is equipped with bamboo raft plate 11; Workmen completes post muscle colligation by scaffolding 5 and column template 6 is installed, and column template 6 is squeezed tightening position by steel pipe 9 by being connected with scaffolding 5 simultaneously.
Three, post mould location, assembled. According to the position line put well, wood circle template is carried to job location and carries out assembled. Wood circle template standard processed joint is highly 1500mm, 900mm, 600mm, and scene can carry out cutting splicing according to actual needs, with diameter 1200mm, clear height 5600mm for example: the circle template adopting 6 half 1500mm high, 4 half 600mm. According to actual needs, template by 2 600mm is processed into 500mm. Left template 12 is interlocked assembled with right template as shown in Figure 3.
Four, steel band hoop is reinforced. While assembled formwork, carry out steel band reinforcing. Steel band configuration model, spacing see the following form:
In distance, 100mm place, ground arranges first steel band, next according to requiring in table to arrange steel band, arranges a steel band at horizontal seam place, each setting in horizontal seam upper and lower 100mm place one steel band.
Five, concrete pouring groove is installed. Pouring basin and connection part of templates are tight by sponge strip bonding or the splicing of other materials, and sponge strip must not embed in shaft.
Six, template is fixed, post root is stifled starches. After wood circle template processed is assembled, placing four vertical battens at column-form respectively along wire cross four direction, wherein two vertical battens are positioned at left template 12 and the vertical joint place of right template 13, clamp with Steel Pipe Scaffold. Bottom one Steel Pipe Scaffold overhead 150mm, the lower end 2m of post arranges one armful of hoop every 1m, and more than 2m 1.8m arranges together, together with wood circle template processed is arranged with concrete depositing groove junction.
Seven, the stifled slurry of root. The stifled slurry of root has two kinds of methods: method one as shown in Figure 4: after column template has been fixed, build the high sand-cement slurry 14 of a circle 70��100mm by laying bricks or stones along column template 6 root, after 1��2 day mortar reaches intensity, carry out concrete placement. Method two as shown in Figure 5, stays the gap of 20��30mm at column template 6 root, the steel frame that outer hoop high 30��50mm is square or circular or wooden frame 15, inserts mortar 16 in its space when building post concrete, prevents rotten of leakage slurry bottom post mould.
Eight, concrete placement. Self-compacting concrete is directly built by last layer floor slab preformed hole mouth, it is not necessary to vibrates in insertion post, only needs to strike outside template to shake, so that it may guarantee that concrete is full of template.
Nine, post root, capital sprue gate are cleared up. The concrete placement time of Dan Genzhu is 0.5��1h, removes with the outer mortar of smearing by post root after building. About 5h after building, after concrete initial set, as shown in Figure 6, the unnecessary concrete 17 of the hydraucone that dash area in Fig. 6 is built mouth cuts.
Ten, the demoulding, maintenance. Cylinder strength of mould stripping is 1MPa, casting complete 24 hours can form removal, immediately with 1:1(ash after form removal: white) cement and dry powder even erasing shaft comprehensively, and wrap tightly with plastic cloth, diameter >=1200mm presses mass concrete maintenance, and shaft is wrapped insulation quilt. Wood circle template brush releasing agent processed prepares to reuse.
The pouring quality of the present invention, the quality of template is crucial, therefore should the standard for acceptance of strict Control architecture.
Circle template quality standard is as follows:
(1) technical feature must meet related quality criterion (by harvesting, check and march into the arena wood plywood product certificate and examining report is checked).
(2) visual appearance inspection standard (by observing inspection) any part must not have rotten, mildew, bubbling. Must not there be edges of boards defect, fluffing. Every square metre of veneer comes unstuck and is not more than 0.001m
2
. Every square metre of contaminated area is not more than 0.005m
2
(3) specification standard thickness detection method: with steel tape at distance edges of boards 20mm place, length limit surveys 3 points, 1 point respectively, gets 8 mean values; Each measuring point and mean value difference are deviation. Length and width detection method: with steel tape measuring respectively often open each 2 points of plate length and width apart from edges of boards 100mm place, average. Diagonal lines difference detection method: the difference measuring two diagonal lines with steel tape. Warpage detection method: with Straight Steel Ruler amount catercorner length, and measuring largest chord height between Straight Steel Ruler and plate face with wedge-shaped feeler gauge (or steel tape), the latter and the former ratio are angularity.
Claims (10)
1. one kind adopts semicircle template to carry out the method for Steel Cylindrical Column concrete placement outward, it is characterised in that: the method is built complete at the beam built and steel pipe column interior concrete, and intensity reaches 1.2MPa, constructs after post reinforcing bar binding; At the reserved pouring hole of upper strata floor when casting beams and Steel Cylindrical Column concrete; When carrying out concrete placement outside Steel Cylindrical Column, first outside Steel Cylindrical Column to be built, set up scaffolding, utilize the assembled column template of scaffolding, column template be length not wait semicircle wooden form or glass steel formwork, column template steel band hoop is fixed, install between the pouring hole that column template top and upper strata floor are reserved and build groove, utilize the steel pipe being connected with scaffolding by column template stationary positioned, and then adopt self-compacting concrete to carry out the outer concrete placement of Steel Cylindrical Column, finally by the demoulding, maintain Steel Cylindrical Column concrete pouring construction outward.
2. method according to claim 1, it is characterised in that: described scaffolding is positioned at around Steel Cylindrical Column, and the plan view shape of scaffolding is door font, and opening is as the entrance of column template; Scaffolding is equipped with bamboo raft plate; Workmen completes post muscle colligation and model sheetinstallat by scaffolding, by the steel pipe that is connected with scaffolding, column template is squeezed tightening position simultaneously.
3. method according to claim 2, it is characterised in that: when described semicircle wooden form or glass steel formwork are assembled, left template is interlocked assembled with right template and is become cylinder mold by steel band hoop.
4. method according to claim 3, it is characterised in that: described steel band hoop is along column template longitudinal arrangement, and the steel band hoop of bottommost is located at distance 100mm place, ground, at the horizontal seam place of every block column template steel band together with each setting in horizontal seam upper and lower 100mm place; Remaining is arranged by spacing 200��250mm.
5. method according to claim 4, it is characterised in that: described in build groove shape be up big and down small bell mouth shape, lower end is connected with cylinder mold top, and junction is tight by sponge strip bonding or the splicing of other materials.
6. method according to claim 5, it is characterized in that: the steel pipe that described utilization is connected with scaffolding is by column template stationary positioned, being place vertical batten respectively at cylinder mold four direction, wherein two vertical battens are positioned at the vertical joint place of left template and right template, and it is fixing to embrace hoop with one group; Then by the steel pipe that is connected with scaffolding by vertical batten clamping and positioning.
7. method according to claim 6, it is characterised in that: described cylinder mold root should carry out stifled slurry process; Stifled slurry process builds the high sand-cement slurry of a circle 70��100mm by laying bricks or stones along post root, after 1��2 day mortar reaches intensity, carries out concrete placement; Or the gap of 20��30mm is stayed at post mould root, the steel frame that outer hoop high 30��50mm is square or circular or wooden frame, insert mortar when carrying out building post concrete in its space.
8. method according to claim 7, it is characterised in that: described self-compacting concrete is built by pouring hole reserved on the floor of upper strata, and casting process adopts and strikes the method for shaking concrete is full of template to guarantee.
9. method according to claim 8, it is characterised in that: the concrete placement time of Dan Genzhu is 0.5��1 hour, removes with the outer mortar of smearing by post root after building; 5 hours after building, concrete initial set, will build the concrete chisel removal of the hydraucone of mouth.
10. method according to claim 9, it is characterised in that: the described demoulding is building 24 hours, is greater than until concrete strength and carries out the demoulding after 1MPa; Described maintenance is immediately with the cement of 1:1 and dry powder even erasing shaft comprehensively after form removal, and wraps tightly with plastic cloth, and diameter >=1200mm presses mass concrete maintenance, and shaft is wrapped insulation quilt.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510113430.9A CN105649327A (en) | 2015-03-16 | 2015-03-16 | Method for pouring concrete outside steel pipe columns by using semicircular templates |
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| CN201510113430.9A CN105649327A (en) | 2015-03-16 | 2015-03-16 | Method for pouring concrete outside steel pipe columns by using semicircular templates |
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Cited By (5)
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| CN107023164A (en) * | 2017-04-20 | 2017-08-08 | 上海建工集团股份有限公司 | The hardened system and its construction method of Fiberglass in Round Column Formwork system |
| CN107023165A (en) * | 2017-04-20 | 2017-08-08 | 上海建工集团股份有限公司 | The sealing system and construction method of Fiberglass in Round Column Formwork |
| CN107965143A (en) * | 2017-12-01 | 2018-04-27 | 中冶建工集团有限公司 | Multi-functional unwrapping wire punch die and the method for being blocked using the mould and being molded unwrapping wire hole |
| CN109386129A (en) * | 2017-08-04 | 2019-02-26 | 上海宝冶集团有限公司 | The reinforcement means of large-diameter concrete column-form |
| CN115788024A (en) * | 2022-11-23 | 2023-03-14 | 中国建筑第四工程局有限公司 | Inclined cylinder high formwork construction process |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107023164A (en) * | 2017-04-20 | 2017-08-08 | 上海建工集团股份有限公司 | The hardened system and its construction method of Fiberglass in Round Column Formwork system |
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| CN109386129A (en) * | 2017-08-04 | 2019-02-26 | 上海宝冶集团有限公司 | The reinforcement means of large-diameter concrete column-form |
| CN107965143A (en) * | 2017-12-01 | 2018-04-27 | 中冶建工集团有限公司 | Multi-functional unwrapping wire punch die and the method for being blocked using the mould and being molded unwrapping wire hole |
| CN107965143B (en) * | 2017-12-01 | 2024-06-11 | 中冶建工集团有限公司 | Multifunctional paying-off hole die and method for plugging and forming paying-off hole by using die |
| CN115788024A (en) * | 2022-11-23 | 2023-03-14 | 中国建筑第四工程局有限公司 | Inclined cylinder high formwork construction process |
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Application publication date: 20160608 |