CN201447796U - Internal mold for cast-in-situ hollow building roof - Google Patents
Internal mold for cast-in-situ hollow building roof Download PDFInfo
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- CN201447796U CN201447796U CN2009200467085U CN200920046708U CN201447796U CN 201447796 U CN201447796 U CN 201447796U CN 2009200467085 U CN2009200467085 U CN 2009200467085U CN 200920046708 U CN200920046708 U CN 200920046708U CN 201447796 U CN201447796 U CN 201447796U
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- internal mold
- cast
- building roof
- hollow building
- situ hollow
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Abstract
The utility model discloses an internal mold for cast-in-situ hollow building roof, which comprises a foam concrete body; the cross section of the body is of reverse trapezoid, the top surface of the body is arched. The utility model not only has advantages of light weight, high strength, heat preserving, heat insulation, noise insulation and vibration resistance, but also can further improve the integrated strength of the cast-in-situ hollow building roof made by the arch bridge principle because of the arched top surface of the cross section.
Description
Technical field
The utility model relates to a kind of building unit, is specifically related to a kind of internal mold that is used for cast-in-situ hollow building roof.
Background technology
Cast-in-situ hollow building roof is to use a kind of very widely construction timber on industry and civilian construction.Existing cast-in-situ hollow building roof mainly is made of the internal mold and the outside concrete of inside, is embedded with reinforcing bar in the concrete usually, to gain in strength.Owing in concrete, laid internal mold, not only reduce concrete consumption, alleviated dead load, alleviated geological process, but also the insulation of superstructure, heat insulation, resistance acoustic performance have been improved, simultaneously because part has been cleared up volume contraction and the heat of hydration of concrete in process of setting, the possibility that causes the temperature shrinkage crack than solid concrete superstructure has also reduced, thereby has obtained widespread usage in China.
The existing internal mold that is used for cast-in-situ hollow building roof mainly contains thin-walled body, duroplasts thin-walled body, polyphenyl hollow bodies or the lightweight entity of papery tube core, glass fiber cement, and the shape major part is circular cylinder core, elongated cylinder or rectangular box.Yet, the hollow building cover that makes with the cast of above-mentioned internal mold often exist be not easy to cooperate with pipeline in the civil engineering, easy penetration concrete after the internal mold breakage, problem that superstructure intensity is low excessively.
On the other hand, the extensive use that foam concrete has obtained as a kind of cement based heat insulating material of light porous heat preservation energy-saving, generally be with foaming agent and cement or add flyash, sandstone, slag etc. and gather materials, mix stir moulding by casting after, form through natural curing or stream curing; Its basic principle is to utilize sealed porositys a large amount of in the concrete to reach lightweight, insulation, heat insulation effect.
Therefore, develop a kind of new internal mold that is used for cast-in-situ hollow building roof,, have the positive effect of reality to improve the bulk strength of superstructure.
Summary of the invention
The purpose of this utility model provides a kind of internal mold that is used for cast-in-situ hollow building roof, to improve the bulk strength of superstructure.
For achieving the above object, the technical solution adopted in the utility model is: a kind of internal mold that is used for cast-in-situ hollow building roof comprises a foam concrete body; It is trapezoidal that the cross section of described body roughly is, and its end face is an arch.
Another kind of technical scheme correspondingly is that a kind of internal mold that is used for cast-in-situ hollow building roof comprises a foam concrete body; The cross section of described body is roughly rectangular, and its end face is an arch, and its bottom is a fillet for two jiaos.
Above, described foam concrete body is made by existing foam concrete, generally is with foaming agent and cement or adds flyash, sandstone, slag etc. and gather materials, mix stir moulding by casting after, form through natural curing or stream curing.The end face of described body cross-section is an arch, is the intensity of having utilized the cast-in-situ hollow building roof that the further raising of arch bridge principle makes thus, prevents its cracking.The bottom of described body cross-section is a fillet for two jiaos, is for when the disturbing concrete, and concrete is entered in the middle of the internal mold bottom easily, prevents to produce hole.The trapezoidal cross-section that falls of a last technical scheme also is this purpose.
In the technique scheme, described foam concrete body is strip, cube-shaped or cylindrical shape.Also can be other common forms of existing internal mold; When foam concrete body when being cube-shaped, its end face can be hyperboloid.
In the technique scheme, described internal mold inside also is provided with glass fiber, wire gauze, reinforcing bar, geotextiles or geo-grid. and this is the tensile strength that improves internal mold for further, and then improves the bulk strength of the follow-up cast-in-situ hollow building roof of making.
In the technique scheme, described internal mold is provided with the through hole of at least one vertical direction.Whether the huge buoyancy that this through hole produces when not only having resisted concrete construction, and can be used as peep hole is poured into a mould and is entered in the middle of the internal mold bottom to observe concrete.
Above-mentioned internal mold can place inside concrete according to prior art, and making cast-in-situ hollow building roof, the position of its layout can be vertically and horizontally arranged, uniform or be circle-shaped uniform or the like.
Because the technique scheme utilization, the advantage that the utility model compared with prior art has is:
1, the utility model has adopted the internal mold of existing foam concrete as cast-in-situ hollow building roof, not only have advantages such as high-strength light, thermal insulation, acoustic insulation shock-proof, and because the end face of its cross section is an arch, utilize the arch bridge principle further to improve the bulk strength of the cast-in-situ hollow building roof that makes thus, had positive effect.
2, the bottom of cross section of the present utility model is a fillet for two jiaos, and perhaps cross section is for trapezoidal, thereby when disturbing concrete, concrete is entered in the middle of the internal mold bottom easily, has effectively prevented the generation of hole.
3, the utility model can cut arbitrarily, can be easily cooperates with pipeline in the civil engineering, the concrete spillage can not occur.
4, the utility model is simple in structure, easy to use, and cost is lower, helps applying.
Description of drawings
Fig. 1 is the vertical view of the utility model embodiment one;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the sectional view of the utility model embodiment two;
Fig. 4 is the stereogram of the utility model embodiment three.
Wherein: 1, foam concrete body; 2, glass fiber; 3, through hole.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment one
Shown in Fig. 1～2, a kind of internal mold that is used for cast-in-situ hollow building roof comprises the foam concrete body 1 of a strip; It is trapezoidal that the cross section of described body roughly is, and its end face is an arch.Described internal mold inside also is provided with glass fiber 2.
Above, described foam concrete body is made by existing foam concrete, generally is with foaming agent and cement or adds flyash, sandstone, slag etc. and gather materials, mix stir moulding by casting after, form through natural curing or stream curing.The end face of described body cross-section is an arch, is the intensity of having utilized the cast-in-situ hollow building roof that the further raising of arch bridge principle makes thus.
Above, described body cross-section is for trapezoidal, is for when the disturbing concrete, and concrete is entered in the middle of the internal mold bottom easily, prevents to produce hole.Described internal mold is provided with the through hole 3 of at least one vertical direction.Whether the huge buoyancy that this through hole produces when not only having resisted concrete construction, and can be used as peep hole is poured into a mould and is entered in the middle of the internal mold bottom to observe concrete.
Above-mentioned internal mold can place inside concrete according to prior art, and making cast-in-situ hollow building roof, the position of its layout can be vertically and horizontally arranged, uniform or be circle-shaped uniform or the like.
Embodiment two
Referring to shown in Figure 3, a kind of internal mold that is used for cast-in-situ hollow building roof comprises the foam concrete body 1 of a strip; The cross section of described body is roughly rectangular, and its end face is an arch, and its bottom is a fillet for two jiaos.Described internal mold inside also is provided with glass fiber 2.
Above, described foam concrete body is made by existing foam concrete, generally is with foaming agent and cement or adds flyash, sandstone, slag etc. and gather materials, mix stir moulding by casting after, form through natural curing or stream curing.The end face of described body cross-section is an arch, is the intensity of having utilized the cast-in-situ hollow building roof that the further raising of arch bridge principle makes thus.The bottom of described body cross-section is a fillet for two jiaos, is for when the disturbing concrete, and concrete is entered in the middle of the internal mold bottom easily, prevents to produce hole.Described internal mold is provided with the through hole of at least one vertical direction.Whether the huge buoyancy that this through hole produces when not only having resisted concrete construction, and can be used as peep hole is poured into a mould and is entered in the middle of the internal mold bottom to observe concrete.Above-mentioned internal mold can place inside concrete according to prior art, and making cast-in-situ hollow building roof, the position of its layout can be vertically and horizontally arranged, uniform or be circle-shaped uniform or the like.
Embodiment three
Referring to shown in Figure 4, a kind of internal mold that is used for cast-in-situ hollow building roof comprises a cube-shaped foam concrete body, and its end face is a hyperboloid; It is trapezoidal that the cross section of described body roughly is.Described internal mold inside also is provided with glass fiber.
Claims (5)
1. an internal mold that is used for cast-in-situ hollow building roof is characterized in that: comprise a foam concrete body (1); It is trapezoidal that the cross section of described body roughly is, and its end face is an arch.
2. an internal mold that is used for cast-in-situ hollow building roof is characterized in that: comprise a foam concrete body (1); The cross section of described body is roughly rectangular, and its end face is an arch, and its bottom is a fillet for two jiaos.
3. the internal mold that is used for cast-in-situ hollow building roof according to claim 1 and 2 is characterized in that: described foam concrete body (1) is strip, cube-shaped or cylindrical shape.
4. the internal mold that is used for cast-in-situ hollow building roof according to claim 1 and 2 is characterized in that: described internal mold inside also is provided with glass fiber (2), wire gauze, reinforcing bar, geotextiles or geo-grid.
5. the internal mold that is used for cast-in-situ hollow building roof according to claim 1 and 2 is characterized in that: described internal mold is provided with the through hole (3) of at least one vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200467085U CN201447796U (en) | 2009-06-22 | 2009-06-22 | Internal mold for cast-in-situ hollow building roof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200467085U CN201447796U (en) | 2009-06-22 | 2009-06-22 | Internal mold for cast-in-situ hollow building roof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201447796U true CN201447796U (en) | 2010-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200467085U Expired - Fee Related CN201447796U (en) | 2009-06-22 | 2009-06-22 | Internal mold for cast-in-situ hollow building roof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201447796U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107587637A (en) * | 2017-08-22 | 2018-01-16 | 广州协安建设工程有限公司 | The box internal model hollow floor of air-entrained concrete building block and its construction method |
| CN113700025A (en) * | 2021-07-22 | 2021-11-26 | 浙江省天正设计工程有限公司 | Cast-in-place hollow floor cover type storage tank leveling foundation arranged in fan shape and construction method thereof |
-
2009
- 2009-06-22 CN CN2009200467085U patent/CN201447796U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107587637A (en) * | 2017-08-22 | 2018-01-16 | 广州协安建设工程有限公司 | The box internal model hollow floor of air-entrained concrete building block and its construction method |
| CN113700025A (en) * | 2021-07-22 | 2021-11-26 | 浙江省天正设计工程有限公司 | Cast-in-place hollow floor cover type storage tank leveling foundation arranged in fan shape and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100505 Termination date: 20110622 |