CN112267671A - Method for manufacturing cast-in-place bare concrete special-shaped niche - Google Patents
Method for manufacturing cast-in-place bare concrete special-shaped niche Download PDFInfo
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- CN112267671A CN112267671A CN202011039081.8A CN202011039081A CN112267671A CN 112267671 A CN112267671 A CN 112267671A CN 202011039081 A CN202011039081 A CN 202011039081A CN 112267671 A CN112267671 A CN 112267671A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
- E04G15/06—Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
- E04G15/061—Non-reusable forms
Abstract
The invention belongs to the technical field of processing of concrete pouring moulds applied to civil engineering, and particularly relates to a method for manufacturing a cast-in-place bare concrete special-shaped niche, which is characterized in that after the surface curved surface form of a concrete special-shaped niche template is confirmed, the straight surface part at the back can be reinforced, and the reinforcing step is as follows: after the curved surface form is confirmed, the distance between the templates is confirmed, then the square steel pipes are placed for shaping and reinforcing, and after the reinforcing is completed, concrete is poured together with the wall body to form the special-shaped niche. The invention adopts the template reinforcing means to be molded with the cast-in-place bare concrete wall template at one time and reinforced with the wall template together to realize the molding effect of irregular special-shaped hyperboloid shape.
Description
Technical Field
The invention belongs to the technical field of processing of concrete pouring moulds applied to civil engineering, and particularly relates to a method for manufacturing a cast-in-place bare concrete special-shaped niche.
Background
The special-shaped concrete member is usually a customized embedded mould member, the processing cost is too high, the processing period is too long, the transportation cost is higher, the positioning accuracy difficulty is too large, and the on-site deviation cannot be modified or adjusted after the mould customization is completed.
The special-shaped niche is mainly used for building one-step formed decorative concrete members, the special-shaped niche is various in form change, most of the moulds are disposable, and if the customized moulds are adopted, the waste of materials is huge, and the cost is too high.
Most of the customized molds are alloy components or plastic components needing to be opened, and most of the alloy components or the plastic molds are female mold inverted male molds, so that the processing difficulty of the components is high, and the production period is long.
The pre-buried degree of difficulty of construction of customization dysmorphism embedded component is great, and is higher to the positioning accuracy requirement, is difficult to attach the fixed reinforcement in wall template surface, pours the displacement phenomenon that easily appears in the in-process. And the mould is unfavorable for demolising after concrete placement is finished, and the demolishment in-process causes destruction to the concrete surface easily. The structure is expressed in the form of a niche attached in a cast-in-place concrete wall body, the structure is a complex structure of irregular hyperboloids, the whole structure is irregular and freely-changing irregular hyperboloids, the surface area is usually not more than 0.3 square meter, and the cost of the customized embedded linking member is too large in all aspects.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an efficient and environment-friendly method for manufacturing a cast-in-place bare concrete special-shaped niche, and solves the problems of difficult processing, high cost caused by customizing components, difficult control of the precision of pre-buried point positions, difficult reinforcement of link nodes, no die running and displacement in the concrete pouring process and great construction difficulty; the method is deepened from the aspect of abandoning embedded members, and the method adopts a template reinforcing means to be molded with a cast-in-place bare concrete wall template at one time and reinforced with the wall template together to realize the molding effect of irregular special-shaped hyperboloid shapes.
The invention provides a method for manufacturing a cast-in-place bare concrete special-shaped niche, which comprises the following steps of:
the method comprises the following steps: confirming the three-dimensional shape of the special-shaped niche and establishing a three-dimensional model of a vertical shaping keel on an attached wall, wherein the keel comprises the niche shape;
step two: setting transverse and vertical cross rays, performing transverse and vertical intersection on the three-dimensional form of the niche and prolonging the form to obtain a free curve of the special-shaped hyperboloid form; the curve is transversely deviated and extended to obtain a straight line outer edge which is intersected and vertical with the keel of the wall body;
step three: the special-shaped niche is shaped by using a wood mould, and is cut transversely and vertically to form a cross, and the cutting line is extended to be a surface with the thickness of 17 mm;
step four: machining a special-shaped wood template through a CNC (computer numerical control) engraving machine airport, arranging a groove in the middle, fixing the shape of the special-shaped wood template by adopting a cross groove, and buckling a vertical clamping groove and a transverse clamping groove; two groups of mutually vertical special-shaped wood templates are mutually overlapped to display a random special-shaped hyperboloid shape;
step five: after the double arc-shaped surface forms are fixed, lining strips with different lengths and with the section size of 20MM, the width of X3 MM and the thickness of X3 MM are adopted to be attached to the curved surface for finding the forms, the surfaces are found by lines through the lining strips, and the lining strips are cut according to the length and the thickness of the construction site;
step six: the method comprises the following steps of (1) polishing and grinding a lining plate layer once after finding out the initial form of the special-shaped niche through a lining plate strip, scraping the surface of the lining plate layer by using atomic ash, and then polishing and grinding for the second time to enable the surface of the lining plate layer to be smooth without splicing and dislocation, and finally taking a multi-layer composite structure coiled material as a contact surface of the surface and concrete;
step seven: after the surface curved surface form of the concrete special-shaped niche template is confirmed, the straight surface part at the rear part can be reinforced, and after the reinforcement is finished, concrete is poured together with the wall body to form the special-shaped niche.
The multilayer composite structure coiled material is selected in the sixth step mainly because its texture is soft, the extensibility can be higher and easily cut and rub with the scene and paste, and the piece is level and smooth and the degree of construction convenience is higher.
Preferably, the lining strip in the fifth step is made of template waste or leftover materials.
In any of the above embodiments, preferably, the reinforcing step in the seventh step is to confirm the distance between the templates after confirming the curved surface shape, and then to set and reinforce the square steel tube.
Drawings
Fig. 1 is an external view of a special-shaped niche used in a method for manufacturing a cast-in-place bare concrete special-shaped niche according to the invention.
Figure 2 is a schematic diagram showing the construction of the profiled niche of figure 1 used in the method of making the cast-in-place bare concrete profiled niche in accordance with the present invention.
Figure 3 is a schematic bottom view of the profile niche of figure 2 used in the method of making a cast-in-place bare concrete profile niche in accordance with the present invention.
Fig. 4 is a schematic structural view of a middle transverse wooden formwork of the profiled niche used in the method for manufacturing the cast-in-place bare concrete profiled niche shown in fig. 2 according to the present invention.
Fig. 5 is a schematic structural view of the horizontal wooden forms at the two ends of the special-shaped niche for cast-in-place bare concrete in the method for manufacturing the special-shaped niche of fig. 2 according to the present invention.
Fig. 6 is a schematic structural view of the horizontal and vertical wooden forms in the special-shaped niche used in the method for manufacturing the cast-in-place bare concrete special-shaped niche shown in fig. 2 according to the invention.
Figure 7 is a schematic view showing the combination of the horizontal and vertical wood form panels in the profiled niche used in the method for making the cast-in-place bare concrete profiled niche shown in figure 2 according to the present invention.
Fig. 8 is a schematic view showing that the special-shaped niche used in the method for manufacturing the cast-in-place bare concrete special-shaped niche shown in fig. 2 is attached to a wall body according to the invention.
Fig. 9 is a schematic view illustrating the integration of the profiled niche and wall reinforcement in the method for manufacturing the cast-in-place bare concrete profiled niche shown in fig. 2 according to the present invention.
Detailed Description
The invention is further described below with reference to the figures and examples.
As shown in figures 1-9, the invention provides a special-shaped niche for cast-in-place fair-faced concrete
The manufacturing method comprises the following steps:
the method comprises the following steps: confirming the three-dimensional shape of the special-shaped niche and establishing a three-dimensional model of a vertical shaping keel on an attached wall, wherein the keel comprises the shape of the niche 1; (see FIG. 1)
Step two: setting transverse and vertical cross rays, performing transverse and vertical intersection on the three-dimensional form of the niche 1 and prolonging the form to obtain a free curve in a special-shaped hyperboloid form; the curve is transversely deviated and extended to obtain a straight line outer edge which is intersected and vertical with the keel of the wall body 2; (see FIG. 2 and FIG. 3)
Step three: the special-shaped niche 1 is shaped by using a wood die, a cross is formed by cutting a horizontal wood template 11 and a vertical wood template 12, and the cutting line is extended to be a surface with the thickness of 17 mm; (see FIG. 4 and FIG. 5)
Step four: machining a special-shaped wood template through a CNC (computer numerical control) engraving machine airport, arranging a groove in the middle, fixing the shape of the special-shaped wood template by adopting a cross groove, and buckling a vertical clamping groove and a transverse clamping groove; two groups of mutually vertical special-shaped wood templates are mutually overlapped to display a random special-shaped hyperboloid shape; (see FIGS. 5 and 6)
Step five: after the double arc-shaped surface forms are fixed, lining strips with different lengths and with the section size of 20MM, the width of X3 MM and the thickness of X3 MM are adopted to be attached to the curved surface for finding the forms, the surfaces are found by lines through the lining strips, and the lining strips are cut according to the length and the thickness of the construction site; (see FIG. 7 for showing)
Step six: the method comprises the following steps of (1) polishing and grinding a lining plate layer once after finding out the initial form of the special-shaped niche through a lining plate strip, scraping the surface of the lining plate layer by using atomic ash, and then polishing and grinding for the second time to enable the surface of the lining plate layer to be smooth without splicing and dislocation, and finally taking a multi-layer composite structure coiled material as a contact surface of the surface and concrete; (see FIG. 8)
Step seven: after the surface curved surface form of the concrete special-shaped niche template is confirmed, the straight surface part at the rear part can be reinforced, and after the reinforcement is finished, concrete is poured together with the wall body to form the special-shaped niche. (see FIG. 9)
The multilayer composite structure coiled material is selected in the sixth step mainly because its texture is soft, the extensibility can be higher and easily cut and rub with the scene and paste, and the piece is level and smooth and the degree of construction convenience is higher.
In this embodiment, the lining board strip in the fifth step is made of template waste or leftover material.
In this embodiment, the reinforcing step in the seventh step is to confirm the distance between the templates after confirming according to the curved surface shape, and then to place the square steel tube for shaping and reinforcing.
Claims (3)
1. A method for manufacturing a cast-in-place bare concrete special-shaped niche is characterized by comprising the following steps of: the method comprises the following steps:
the method comprises the following steps: confirming the three-dimensional shape of the special-shaped niche and establishing a three-dimensional model of a vertical shaping keel on an attached wall, wherein the keel comprises the niche shape;
step two: setting transverse and vertical cross rays, performing transverse and vertical intersection on the three-dimensional form of the niche and prolonging the form to obtain a free curve of the special-shaped hyperboloid form; the curve is transversely deviated and extended to obtain a straight line outer edge which is intersected and vertical with the keel of the wall body;
step three: the special-shaped niche is shaped by using a wood mould, and is cut transversely and vertically to form a cross, and the cutting line is extended to be a surface with the thickness of 17 mm;
step four: machining a special-shaped wood template through a CNC (computer numerical control) engraving machine airport, arranging a groove in the middle, fixing the shape of the special-shaped wood template by adopting a cross groove, and buckling a vertical clamping groove and a transverse clamping groove; two groups of mutually vertical special-shaped wood templates are mutually overlapped to display a random special-shaped hyperboloid shape;
step five: after the double arc-shaped surface forms are fixed, lining strips with different lengths and with the section size of 20MM, the width of X3 MM and the thickness of X3 MM are adopted to be attached to the curved surface for finding the forms, the surfaces are found by lines through the lining strips, and the lining strips are cut according to the length and the thickness of the construction site;
step six: the method comprises the following steps of (1) polishing and grinding a lining plate layer once after finding out the initial form of the special-shaped niche through a lining plate strip, scraping the surface of the lining plate layer by using atomic ash, and then polishing and grinding for the second time to enable the surface of the lining plate layer to be smooth without splicing and dislocation, and finally taking a multi-layer composite structure coiled material as a contact surface of the surface and concrete;
step seven: after the surface curved surface form of the concrete special-shaped niche template is confirmed, the straight surface part at the rear part can be reinforced, and after the reinforcement is finished, concrete is poured together with the wall body to form the special-shaped niche.
2. The method for making a cast-in-place bare concrete special-shaped niche according to claim 1, wherein the method comprises the following steps: and the lining plate strip in the fifth step is made of template waste or leftover materials.
3. The method for making a cast-in-place bare concrete special-shaped niche according to claim 1, wherein the method comprises the following steps: and the reinforcing step in the seventh step is to confirm the distance between the templates after confirming the curved surface shape, and then placing a square steel pipe for shaping and reinforcing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011039081.8A CN112267671A (en) | 2020-09-28 | 2020-09-28 | Method for manufacturing cast-in-place bare concrete special-shaped niche |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011039081.8A CN112267671A (en) | 2020-09-28 | 2020-09-28 | Method for manufacturing cast-in-place bare concrete special-shaped niche |
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| CN112267671A true CN112267671A (en) | 2021-01-26 |
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| CN202011039081.8A Pending CN112267671A (en) | 2020-09-28 | 2020-09-28 | Method for manufacturing cast-in-place bare concrete special-shaped niche |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112962963A (en) * | 2021-02-23 | 2021-06-15 | 中国建筑第八工程局有限公司 | Special-shaped bare concrete oval hole pre-buried die box and manufacturing method thereof |
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| JP2008121332A (en) * | 2006-11-14 | 2008-05-29 | Toda Constr Co Ltd | Method for forming curved surface form |
| CN102345377A (en) * | 2011-07-15 | 2012-02-08 | 广州市第三建筑工程有限公司 | Method for making spatial multi-curved-surface as-cast finish concrete stay in place formwork by using plywood |
| CN104775612A (en) * | 2015-02-16 | 2015-07-15 | 北京建工四建工程建设有限公司 | Three-dimensional distorted rotating inclined reinforced concrete frame structure template and construction method thereof |
| CN205894656U (en) * | 2016-07-18 | 2017-01-18 | 中建八局第三建设有限公司 | Irregular curved surface clear water is steel sheet rib rising wood die body system for concrete |
| CN108437301A (en) * | 2018-06-12 | 2018-08-24 | 雅泰实业集团有限公司 | A kind of hyperbolic heterotype profiled sheet shaping mould and its hyperbolic moulding process |
-
2020
- 2020-09-28 CN CN202011039081.8A patent/CN112267671A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008121332A (en) * | 2006-11-14 | 2008-05-29 | Toda Constr Co Ltd | Method for forming curved surface form |
| CN102345377A (en) * | 2011-07-15 | 2012-02-08 | 广州市第三建筑工程有限公司 | Method for making spatial multi-curved-surface as-cast finish concrete stay in place formwork by using plywood |
| CN104775612A (en) * | 2015-02-16 | 2015-07-15 | 北京建工四建工程建设有限公司 | Three-dimensional distorted rotating inclined reinforced concrete frame structure template and construction method thereof |
| CN205894656U (en) * | 2016-07-18 | 2017-01-18 | 中建八局第三建设有限公司 | Irregular curved surface clear water is steel sheet rib rising wood die body system for concrete |
| CN108437301A (en) * | 2018-06-12 | 2018-08-24 | 雅泰实业集团有限公司 | A kind of hyperbolic heterotype profiled sheet shaping mould and its hyperbolic moulding process |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112962963A (en) * | 2021-02-23 | 2021-06-15 | 中国建筑第八工程局有限公司 | Special-shaped bare concrete oval hole pre-buried die box and manufacturing method thereof |
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Application publication date: 20210126 |
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